Monday, September 30, 2019

Discuss Shakespeare’s dramatic technique in Act one scenes 1 to 7 Essay

The chief character of the play is Macbeth. He is first of all Thane of Glamis and then inherits the title thane of Cawdor from an executed traitor. Instigated by a prophecy from the Witches that he will become king, and urged on by his wife, he murders King Duncan, and has himself proclaimed king. To secure his position, he is driven to commit further criminal acts, and plunges his country into civil war. After he is killed in battle by Macduff he is described as a ‘dead butcher’. The first scene is set on the ‘moor’ that is bleak and desolate. This scene is one of desolation and devastation. The desolate countryside metaphorically separates the humans from the Witches who are used to open the play to introduce the idea of fate and destiny. From the stage directions, the ‘battlefield’ creates a scene of death, carnage and destruction in line 4, ‘when the battle’s lost and won’ and line 12 and 13, ‘fair is foul and foul is fair’ a paradox is offered. How can fair be foul? How a battle be lost and won? The Witches’ chant in rhyming couplets and their speech is deliberately equivocal to create confusion in the mortals, as it is open t interpretation. He rhyming couplets give the effect of an incantation, while the thunder and lightning echo the noise of the battle. Similarly strange is thepaaradox that closes the scene: contained within it is the oxymoron, ‘fair is foul, and foul is fair’, a paradoxical idea that the Witches are able to transform what is good into evil, and make what is evil appear virtuous. These are also the first words spoken in the play by Macbeth, the echo establishes an unconscious contact with the Witches and is dramatically effective. We discover that the Witches are on the ‘moor’ ‘to meet with Macbeth’. They seem to know where Macbeth will be. Once again they show that they can foretell the future. What can Macbeth the play’s eponymous hero have to do with these abnormal, ‘weird woman’ who ‘look not like th’inhabitants of earth’? How does he fit into their plans? The opening scene heightens the audience’s expectations, as Macbeth will soon appear on stage, the audience will try and establish exactly why the Witches hope t meet him. Witches held great significance for a Jacobean audience who believed in witchcraft. Witches were the objects of morbid and fevered fascination during this era. The Jacobeans were afraid and superstitious. They suspected that the Witches were credited with powers and could predict the future, fly, cause fogs and tempests, bring on night in daytime, kill animals and curse people, with fatal diseases as well as induce nightmares. By the use of this technique, Shakespeare knew that he would get his audience’s attention with the opening scene. Although brief, this scene sets the supernatural atmosphere of the play, which is central to its dramatic action. In scene two, Shakespeare cleverly moves the scene to establish a different mood when introducing the humans. The seething battlefield replaces the moor, foul thunder is replaced by the sound of the military alarum and the humans replace the Witches. In this scene we meet Duncan, the King of Scotland, and his sons, Donalbain and Malcolm. Duncan’s supremacy is instantly established for he is the first to speak. They receive a report of the battle fought against the King of Norway and Macdonwald, the thane of Cawdor who has proved disloyal to Duncan. From the report he audience learns about the heroism and bravery of one of the King Duncan’s generals, Macbeth. Shakespeare continues to build suspense as he introduces the humans. The audience are also introduced to evil in man and the evil in warfare. The playwright’s use of language helps to bring the battle to life and emphasises Macbeth’s importance. Dynamic verbs like, ‘smok’d’, ‘brandish’d’ and ‘unseam’d’ suggest Macbeth’s skills and courage as his sword ‘smok’d with bloody execution’. Once again we hear about Macbeth before we see him. Hw=e is spoken of in glowing terms and he becomes a hero in the eyes of the audience. Though he is referred to as a ‘worthy gentlemen’, there is still the memory that his name is connected with the Witches. ‘Brave Macbeth’ kills Macdonwald by carving ‘out his passage’ ’till he unseem’d him from the nave to the chops’ ‘with his brandish’d steel’ that ‘smok’d with bloody execution’. Part of this description highlights Macbeth’s bravery and valour, but the captain’s description of Macbeth’s ‘unseeming’ of Macdonwald can be interpreted in different ways. Shakespeare intentionally paints an ambiguous picture of Macbeth. Macbeth, however, is still not satisfied until he had ‘fix’d [Macdonwald’s] head’ upon the ‘battlements’. The decapitation of Macdonwald would support a more negative reading of Macbeth as oppose to his courageous behaviour. Scene two concludes with an ironic note as Macbeth is rewarded with the title of ‘Thane of Cawdor’ which has been taken from ‘that most disloyal traitor’ and given to Macbeth, who will prove to be more treacherous: ‘No more than Thane of Cawdor shall deceive, Our bosom interest. Go pronounce his death, And with his former title greet Macbeth’. The audience will realise that to make Macbeth Thane of Cawdor is a great mistake. We see Macbeth, the loyal subject and great hero who fought for good, change and become corrupt, and gradually deteriorate into a vicious tyrant. At the start of scene three, we meet the Witches once again in foul weather and we begin to witness their spiteful destructive nature. One ‘sister’ has been ‘killing swine’ while another has possession of a ‘pilot’s thumb’. The other Witch punishes a sailor’s wife by conjuring up a storm, therefore getting at her husband. From this the audience learns that the powers the Witches carry are limited. They cannot kill, but are able to create a climate for evil to flourish. ‘Though his bark cannot be lost Yet it shall be tempest-toss’d’. The Witches’ curse on the sailor can be read as a prediction of Macbeth’s future. We are shown that the Witches are determined to make people suffer. They torment the sailor and drain him ‘dry as hay’. They deny him sleep at ‘night’ and in the ‘day’. They ensure that ‘he shall live a man forbid’. However, Macbeth can be destroyed because the forces of veil are present within him. He alone causes chaos in the world by destroying the natural order when he deliberately choose the path of evil. The ship is a metaphor for the state of Scotland which is going to ‘tempest toss’d’ when Macbeth becomes king. ‘A drum beats and Macbeth makes an entrance. We finally meet him and it is significant that his first appearance is with the Witches on the ‘moor’. This represents his connection with evil. His paradoxical word ‘So foul and fair a day I have not seen’ arrests us because it replicates those of the Witches. This once again draws inferences between Macbeth and evil. This could suggest that the Witches have control over Macbeth, or that the ‘hags’ are in some way similar to him. The appearance of the Witches like their speeches is equivocal. It is Banquo, who is used now as a dramatic device, who first comments on the bizarre appearance of the Witches. They ‘look not like th’inhabitants o’th earth, and yet are on’t’ and they appear to be ‘women’ though they have ‘beards’. Banquo is calm and is looking for a reasonable explanation to why the Witches are on the moor, whilst Macbeth is impatient and wants an immediate answer to why the Witches have come with ‘such prophetic greetings’. The Witches prophesise that Macbeth, ‘Thane of Glamis’ will become ‘Thane of Cawdor’ and ‘king hereafter’, and that Banquo will have kings. Part of the prophecy is immediately fulfilled when a messenger announces that Duncan, King of Scotland has promoted Macbeth Thane of Cawdor. We the audience realise, that from the previous scene, Macbeth with his courage and bravery, and not the Witches’ powers, has won him the title ‘Thane of Cawdor’. Macbeth is ‘rapt withal’ and becomes lost in his thoughts, as the Witches have articulated his secret desire of killing the King. His mind has been corrupted and he wants glory for himself. Shakespeare shows how evil can control what is good in Macbeth. Macbeth is torn between the forces of good and evil and he believes that he cannot be king unless evil wins over good. Macbeth reveals a disturbed mind, when he speaks his own thoughts aloud in a soliloquy, as murder is in his mind. His first thought is to leave everything to chance: ‘If chance will have me king, why chance may crown me, Without my stir’ Macbeth has asked Ross and Angus, the messengers, why they ‘dress [him] in borrow’d robes’- why they call him by the name of Cawdor, when Cawdor lives. By the end of the scene Macbeth is contemplating ‘borrowing’ the king’s ‘robes’. The reference to clothing in this scene is symbolic. The imagery of clothing indicates status, prestige and symbolises a person’s title. By using the imagery of clothing, Shakespeare is trying to show that if you wear someone else’s clothes they may feel uncomfortable and they may ‘cleave not to their mould’ because they are ‘borrow’d’. Therefore if Macbeth wears the robes of the kingship they will ‘cleave not to [his] mould’ as he is not worthy of the kings throne. When the Witches depart in this scene, Macbeth orders them to, ‘Stay, you imperfect speakers tell me more’. Macbeth’s curiosity has got the better of him and his demand of the Witches indicates his obsessive interest with these ‘weird women’ and their prophecies. The Witches ‘vanish’ into the air as they do not receive orders from mortals and will not be dictated to. The source and purpose of their evil remains a mystery to the audience. Shakespeare metaphorically compares the disappearance of the Witches to ‘bubbles’. Macbeth’s life can also be represented as a bubble, as the ‘honour, love, obedience’ and ‘troops of old friends’ that he has will soon disappear under the wishes they had ‘stay’d’. Ross and Angus enter, they are used as dramatic devices to convey to Macbeth the Kings decision to reward Macbeth with the title ‘Thane of Cawdor’. Macbeth and Banquo are both shocked as the ‘devil’ has spoken the truth. Macbeth is already snared by the Witches’ prophecies, as he believes that, ‘The greatest is behind’ On the other hand, Banquo can see through the trickery of the Witches. He is sceptical and can see through Macbeth’s motives in asking him whether he hopes his heirs will become kings. Banquo tries to warm Macbeth against the ‘instruments of darkness’. He tries to convince Macbeth that the Witches tell simple truths that are easy to believe, so that when they want to deceive people with more important matters they will also be believed. ‘And often times, to win us to our harm, The instruments of darkness tell us truths, Win us with honest trifles, to betray’s In deepest consequence’. Banquo is portrayed b by Shakespeare in a positive light, as he does not make him an accomplice in Duncan’s murder. The stage directions show that Macbeth turns ‘aside’. This informs the audience that he is talking to himself. This symbolises Macbeth turning away from the other characters in the play as well as the path to righteousness. Shakespeare uses dramatic language to emphasise Macbeth’s horror. His ‘seated heart knock’ at his ‘ribs’ and his hair is ‘unfix’ed’. The scene concludes with Macbeth and Banquo following Ross and Angus to meet the king. The audience are filled with a sense of apprehension and anticipation. One question remains: how will Macbeth get the crown? Scene four opens with a focus on treachery and betrayal. King Duncan hears his son, Malcolm, relate how the treacherous Cawdor has been executed. Also in this scene Duncan reveals his lack of knowledge regarding his own thanes. He exposes a very human weakness-one which lies at the heart of the play- the difficulty of working out who is loyal and who is pretyending loyalty: ‘There’s no art to find the Mind’s construction in the face’. It seems likely that there is an implicit criticism of Duncan here: a good King should be able to assess the loyalty of all his servants. Duncan’s failure to do so reveals his limitation as a monarch- one who is taken in by appearances. Dramatic irony is introduced where Duncan announces that Cawdor was a Kinsman in whom he had ‘absolute trust’. Macbeth’s betrayal will replicate that of Cawdor’s. When Macbeth and Banquo enter, Duncan immediately singles out Macbth for praise, ‘o’worthiest cousin’. The superlative ‘worthiest’ subtly reveals that Macbeth is yet another thane in whom Duncan has ‘absolute trust’. Macbeth is the most dangerous of the potential traitors because he is closest to the king. Scene four is the only time we see Macbeth and Duncan together and Shakespeare contrasts the forces of good and evil. Macbeth’s deceit and hypocrisy is shown in this scene when he praises King Duncan and promises to honour him with ‘loyalty’. He convinces Duncan that servicing ‘your highness’ will be its own reward. Macbeth is a hypocrite because in the previous scene he has contemplated the ‘murder’ of Duncan. Duncan ironically comments that he has started to metaphorically ‘plant Macbeth’, meaning that he will make sure that Macbeth grows greater and stronger as a reward for his services. This is ironic because what is growing in Macbeth is the seed of ambition to be King himself. Shakespeare deliberately plants an obstacle in Macbeth’s path when Duncan announces that his eldest son, Malcolm, is to succeed him as king. Macbeth now sees Malcolm as an obstacle between himself and the throne ‘which he must fall down’ or ‘else o’er leap’. Shakespeare uses the euphemism that Malcolm is a ‘step’ he must ‘o’er leap’, in order to disguise the realisation that Malcolm must be eradicated. In an ‘aside’, symbolically turning his back on the King, Macbeth reveals to the audience, and articulates for the first time his ‘black and deep desires’. He invokes the powers of darkness to ‘hide [their] fires’. At the beginning of scene five, we see that Macbeth and his ‘dearest partner of greatness’, Lady Macbeth, have a very close relationship. This is a contrast to how distant they become later on in the play when Macbeth’s ‘fiend-like queen’ is ‘innocent of the knowledge’. She is ‘innocent of the knowledge’ as Macbeth does not confide about his plans to kill Banquo, and she shows ignorance of Macbeth’s murder of Macduff’s family. She asks in her rambling state ‘where’ the Thane of Fife’s wife is ‘now’. Macbeth’s lack of sorrow when he hears of his wife’s death is also indicative of how they have drifted apart. In all the public scenes in the play she acts ‘like the innocent flower’; in the private scenes we see the ‘serpent under’t’. It is suggested that she commits suicide as she has become lonely and rather isolated. Lady Macbeth does not live up to the expectation of a typical Jacobean/Elizabethan woman. She wants the spirits the ‘spirits’ to ‘unsex’ her so that she can be tough and strong. Lady Macbeth uses strong imperatives and determined language that is brutal and violent. This is because she is delighted with her husband’s letter and shows determination that he will become king. The letter form Macbeth describes the Witches’ appearances, their prophecies-in particular that which promises the throne to Macbeth- but does not mention King Duncan’s announcement of his heir; the audience can therefore, assume that this letter was written immediately after the events which occur in the third scene. Although Lady Macbeth knows that her husband is ambitious, she is aware that he ‘is too full o’the milk of human kindness’. She says that ruthlessness is an ‘illness’ that Macbeth does not have. This is not a true portrayal of Macbeth, because from the previous scenes and throughout the play we see that Macbeth is not ‘too full o’the milk of human kindness’ but lacks it. Perhaps she is comparing Macbeth to herself and is saying that Macbeth is not as ambitious as she is. Lady Macbeth under estimates the powers of her conscience. She see her conscience as her weakness, not realising until after Duncans ‘murder’ how she will pour[her] spirits in his ear’. She has also decided that nothing will stand between him (or her?) and the ‘golden crown’ ( a metonym for the throne). Lady Macbeth greets her husband like the Witches, which subconsciously links her to evil and believes that her call to the ‘murdering ministers’ has been answered. She feels ‘now the future in the instant’ and that she is ‘beyond this ignorant present’. This is ironic as Lady Macbeth is still being ‘ignorant’. Lady Macbeth’s confidence is a contrast to Macbeth’s uncertainty. She advises him to ‘look like the innocent flower but be the serpent under’t’ and to ‘only look up clear’. She is in control of their relationship and tries to help Macbeth find the necessary determination to do the ‘deed’. Though Lady Macbeth appears to be confident, she uses euphemisms when talking to Macbeth about the ‘nights great business’. At this point in the play, Macbeth has been tempted to commit regicide, however he has tried to resist temptation. Macbeth’s resistance, however, is not vigorous enough to stand up to his wife’s ability to manipulate him. The scene closes dramatically with Lady Macbeth’ emphatic affirmation that Duncan’s fate rests in her hands- ‘leave all the rest to me’. Scene six sees King Duncan arriving at Macbeth’s castle, he and Banquo talk about how ‘pleasant’ a place it is to visit. They comment that the air ‘recommends itself’ and ‘is delicate’. This is ironic in view of Lady Macbeth’s words in the previous scene, and even more so when compared with that of the Witches say about the ‘fog and filthy air’ surrounding their evil deeds. Duncan also says that he is grateful for the ‘love’ which is shown to him. Here again, Shakespeare uses dramatic irony. The idea that Duncan feels safe and loved in the surroundings is ironic as this will be the scene of his murder. This creates a sense of anticipation for the audience. It shows Duncan’s naivety, as he keeps full trust in Macbeth and his ‘fair and noble hostess’. We are presented in this scene with images of tranquillity and the words ‘host’ and ‘guest’ are repeated. At the beginning of scene seven, we once again see the struggle between the forces of good and evil. Macbeth cannot make up his mind whether to kill Duncan and he wrestles with his conscience in his soliloquy. He knows that the murder would be wrong and would he would end up paying the price for his crime, but he has ‘vaulting ambition’ that is very persuasive to his conscience. Though Macbeth is driven by ‘his vaulting ambition’ he redeems himself and ‘will proceed no further in this business’, as Duncan’s murder will be ‘like angels, trumpet-tongu’d’ and heaven would be outraged. The verb ‘will’ shows Macbeth’s determination to keep his soul. Toward the end of his soliloquy Macbeth compares his excessive ambition to a horse that tries to jump too high and fall on the other side of the fence. Within the soliloquy Macbeth’s thoughts seem to be fragmented, this is shown by the use of many full stops. Lady Macbeth verbally assaults her husband using violent language that becomes heightened. She accuses him of being a ‘coward’ and questions his manhood: ‘when you durst do it’, she says, ‘ then you were a man’. She is forceful in her language and she conjures up images of horror. She knows, ‘How tender’tis love the babe that milks me: I would, While it was smiling in my face, Have pluck’d my nipple from boneless gums, and dash’d the brains out†¦Ã¢â‚¬â„¢ Lady Macbeth seems to have been granted her earlier wish to the evil spirits to ‘Fill me from the crown to the toe top-full Of direst cruelty’. Macbeth’s earlier decision not to kill Duncan crumbles under the scornful attack of his wife, especially when his bravery is questioned. However, he is still worried bout what will happen to then if they ‘should fail’. Shakespeare cleverly ends the scene with rhyming couplets. ‘Away, and mock the time with fairest show, False face must hide what the false heart doth know’. The rhyming couplets symbolise their connection with the Witches and evil as they complete their preparations for murder. The audience waits in anticipation. Throughout Act one Shakespeare creates an atmosphere of tension by exploring the theme of evil against good. Symbolism is used to emphasise this theme. Dramatic irony, dramatic language and strong descriptive scenes also help to build up an atmosphere of tension.

Sunday, September 29, 2019

Best Solution

To Inform and persuade your audience that a specific problem exists, It Is serious, and It affects them. Time: 6-8 minutes Topic: Choose a topic that interests you and would probably interest your audience (the class). Consider what your audience already knows about this topic and what their attitude about this topic will be. Do not choose something the audience already knows a lot about. This topic must be presented in a persuasive manner; if the majority of your speech Is informative, you will fail this speech.Requirements: You must Inform and persuade the audience of a position on a topic you have researched. – You must Identify a problem, explain several possible solutions (preferably 3 or more), and then convince your audience of the best overall solution. Identify the opposition, then defeat it with your position's/view's support. – You must use at least one technology-based visual aid (ELM with 2 or more pix, chart, diagram, etc†¦ Power Point, video (Youth o r DVD/VS..), or other audio/visual aids, etc†¦ Oh may use additional non-technology based visual aids if you want) – must prepare & type an outline, to be turned in right before you present. Must orally cite at least four published or copyrighted sources as support. – must type a Works Cited of your sources to be turned in with your outline. – may use no more than TWO note cards (ex.) – keywords or phrases only! – write out your entire speech word for word on the note cards! You DO NOT *You must have teacher approval for your topic, and you will not present the same topic as another student. Oh do not complete this speech, you will NOT receive credit for the course, regardless of your current grade. Persuasive Problem-solution Where do I start? Problem – Convince us the problem exists and Is serious! Use persuasive language and powerful, colorful word choice to make a major impact on your audience (especially with Pathos) Examples: If w e do not do something†¦ We must recognize†¦ †¦ Wiped from existence. †¦ Slow, agonizing and painful death (then show VA) †¦ Perished forever.State an opinion then a fact to back it up, or a fact then an opinion with either a persuasive tone Word use a rhetorical question. – If we do not do something about the AIDS epidemic, entire generations and races will be wiped from existence. We must recognize that life is about more than money and cars; our world, our future is in grave danger. OPINION] Millions have perished from this disease, and it is projected that by the year 2014, 60 million more people will die a slow, agonizing and painful death.So by the time some of you graduate from high school or college, the Indianapolis population will be destroyed over 60 times or the world will bury over 17,143 North Central-sized schools. [FACT] – Millions have perished from this disease, and it is projected that by the year 2014, 60 million more people will die a slow, agonizing and painful death. So by the time some of you graduate from high school or college, the Indianapolis population ill be destroyed over 60 times or the world will bury over 17,143 North Central-sized schools. FACT] If we do not do something about the AIDS epidemic, entire generations and races will be wiped from existence. We must recognize that life is about more than money and cars; our world, our future is in grave danger. Or is life just not that precious to you? [OPINION] You do not have to overload your speech with lots of numbers and facts – 2-3 good opinions with facts to back up the opinion or 2-3 facts with connecting opinions, like the examples provided, are all you need. Solution – You can use solutions that are already out there, but not currently in use.You Just have to work out the kinks; meaning, why are these solutions not being used? Then, decide on the best solution to this problem – is it one thing or is it a combinat ion off couple of the stated solutions. Show us pictures of the world with (and possibly without) the problem. Be very visual and descriptive Paint us a mental picture with your words. What should we (as society) expect after your solution is implemented? Action – Give us contact information- hotness numbers, shelters, government agencies ND advocates, web addresses, postal addresses, etc†¦

Saturday, September 28, 2019

Financial Accounting Theory. Assignment 2 Essay

Financial Accounting Theory. Assignment 2 - Essay Example While accounting for sole trader and partnership are taken up only for the purposes of tax reporting, corporate accounting is widely shared across the world so that the information can be accessed by the various users who may be affected by such information. Naturally, with a wide user base, if the reporting is not done on certain specific guidelines, interpretations may widely differ thereby destroying the very purpose of reporting. To avoid such discrepancies, a framework of concepts have been developed which bind the information into understandable statements with the underlying obligation of â€Å"relevance, objectivity and feasibility† (Anthony & Reece, 1994). These concepts combined with the three golden rules of accounting viz. Personal, Real and Nominal form the language which conveys the same meaning to all the people (Shukla, Grewal and Gupta, 2008). A small description of these concepts would give a bird’s eye view on the basics of accounting language: Dual Aspect Concept: Any income is an outcome of some benefit foregone called the expense. As such, any asset is the result of liability undertaken to acquire that asset. The equation is Asset = Liabilities +Owners’ equity. Accounting Period Concept: Financial reporting has to be done for a particular period of time, usually for a year. All transactions which take place in that year have to be recorded in the books of that period. However, due to the increasing diversity of the nature of transactions, it becomes imperative that a periodical review of the set standards is taken up so that the book-keepers do not face any confusion while recording such transactions. For this sake, International Accounting Standards Committee (IASC) and such account standards periodically to guide the users towards a standardized version of financial statements. After 2004, it was decided that issue of new standards are to be done only in compliance to the International

Friday, September 27, 2019

Traditional Views of Nature Essay Example | Topics and Well Written Essays - 250 words

Traditional Views of Nature - Essay Example Shintoism is a religious form of nature worship that originated from Japan. The fundamental belief of Shintoism holds that the nature deities created the world and that everything, animate and inanimate objects, has a spiritual essence residing in them. The spirits within are said to be part of or created by the gods of nature. This would result in the belief that respecting the environment would mean reverence to the gods, while disrespect would mean dishonor to the deities. In philosophy, there is the idea of pantheism. Pantheism is the idea that everything is a part of the divine and that all things are extensions of the divine. This notion is shared by many ancient philosophies from Western and Eastern cultures. This relates to the fact that ancient cultures view nature as the way it is because the universe is moved by divine forces. For pantheism, everything in this world is an integral and unified extension of the divine in the

Thursday, September 26, 2019

Effects Of Adoption On Young Adoptees Assignment

Effects Of Adoption On Young Adoptees - Assignment Example Parents without adopted children think adoption is a simple process whereby the adopted child has only to seek truth about his or her true parentage. This is not the correct because the child experiences other emotional and psychological effects. In this article, the author outlines common feelings adopted kids have. They feelings include a sense of loss and grief over real parentage, lack of control over life, curiosity about family heritage, feels abandoned, guilt, and fear of rejection. In addition, the writer mentions that the adopted children thinks about how life would have been with the birth parents, feels angered by real parent or adoptive ones and feels unworthy of love and fear getting emotionally involved with other people. However, due to the difference in the adoption situation, some children do not experience the feelings since they are at peace with the adoptive parents. They are exceptional. Despite this, parents should work hard to help children learn and cope with the emotions accompanying adoption

Wednesday, September 25, 2019

Shorthand Essay Example | Topics and Well Written Essays - 500 words

Shorthand - Essay Example h out loud’ whereas ‘b4’ stands for ‘before.’ Shorthand messaging usually hinders smooth communication between persons of different generations, especially between teenage students and middle-aged teachers in schools (Lenore, 2012). In this context, a section of the languages fraternity discourages the use of shorthand messaging while the other portion encourages the communication behavior. Personally, I am fond of shorthand messaging. Not only would I encourage the young generation to use shorthand messaging, but I would also provide a nurturing environment for the shorthand communication culture to blossom. Conservatives who are against the use of shorthand writing allege that abbreviations in communication are an outright assault on formal English. However, I am of the opinion that shorthand messaging is a natural evolution of English language. Undeniably, today’s formal English is substantially different from the formal English used in Shakespearian times. Language is a dynamic cultural component that evolves naturally with time (Lenore, 2012). Therefore, restricting the use of shorthand communication is an outright assault on cultural dynamism. In addition, I believe that language is a medium of expression; a channel through which one’s ideas and thoughts are documented. Instant messaging technologies today provide a means through which young people expresses themselves in a comfortable and simplified manner. Teachers hate to embrace the fact that teenagers in school would shallowly express themselves were they to use formal writing in class work (Lenore, 2012). For ex ample, use of a frowning face at the end of an argument signifies presence of a counter-argument. Whenever shorthand communications are restricted, students fail to present their arguments wholly, partly because they are not accustomed to formal writing, and also because they are innately uncomfortable with dictates of language conservatisms. In conclusion, it emerges that

Tuesday, September 24, 2019

OZONE DEPLETION Essay Example | Topics and Well Written Essays - 1250 words

OZONE DEPLETION - Essay Example n with focus on chemical aspects such as composition and properties, causes of ozone depletion, chemical actions that define depletion, and chemical effects of ozone depletion. Ozone is a chemical substance, existing in molecular state and consisting or three oxygen atoms. It is a product of chemical reactions and because of its unstable condition, can easily dissociate if triggered. Its formation begins with dissociation of an oxygen molecule to form oxygen atoms through the following path and under ultra violet radiation. The process occurs under photochemical dissociation and the oxygen atoms react with oxygen molecules in the presence of stabilizing factors, such as nitrogen molecules and oxygen molexules, to form the ozone. Ready availsbility of oxygen molecules from which dissociation occurs means ease of formation of the ozone gas. the following equations shows the reaction into formation of ozone (National Oceanic and Atmospheric Administration 2010, p. 1). The ozone can also dissociate easily in the presence of such catalysts as nitrogen monoxide, chloride atoms, and chloro-fluoro carbons. The following equation shows the dissociation that also defines depletion of the ozone. The ozone is therefore a chemical substance whose existence also depend on other chemicals in its environment. the other chemicals may facilitate formation of the ozone, as oxygen and nitrogen molecules do, of may facilitate dissociation as do chlorine atoms and chloro-fluoro carbons (Columbia University n.d., p. 1). Ozone is an unstable chemical and easily dissociated into oxygen molecules, in the presence of catalysts. It also has a short half life and therefore dissociates independently to characterize depletion. This means that its continuous formation and minimal chemical dissociation are necessary for stability in its volume. Ozone is also soluble in water and the solubility is a factor of both temperature and concentration. it its gaseous state, higher concentration of

Monday, September 23, 2019

Experimental film&video Essay Example | Topics and Well Written Essays - 1000 words

Experimental film&video - Essay Example But before I go to that specific scene, there is a need to at least describe the preceding scenes to set the premise and provide a holistic review of that specific segment of the film. The scene starts with the title honeymoon which implies that Akmatov succeeded in seducing Anna with his money and the two got married. Anna, dressed in white with a band of flowers around her head was shown smiling as she beckons someone to her side. Anna was lying on her back on what looked like a couch or a bed filled with pillows. This was followed by the shadow imagery showing a man flirting with a woman. The man was trying to tickle the woman with his playful fingers. The close up shot of Akmatov reveals the identity of the man who was with Anna. After their foreplay, Akmatov dove into Anna’s bosom. The scenes that followed showed a cannon barrel firing several shots, a woman who fell flat on her face and a close up shot of Akmatov wiping his mouth in sheer satisfaction. This series of frames depicts consummated sexual intercourse between Anna and Akmatov. The cannon barrel represents the dominant male sex while the fallen woman represents the submissive female sex. The picture of Akmatov wiping his mouth represents sexual satisfaction and satiation. After their honeymoon, Anna remembered her duty to save the world. But she cannot do that with Akmatov around so she had to strangle and kill him. He killed Akmatov so that she could go the core of the earth and become the new and better heart of the world. The message is loud and clear. Eliminating commercialism and greed for wealth is the only way to clear the path for saving the world. Too much industrialization has polluted the earth and depleted its resources. Too much commercialism fuels industrialization. And too much greed for money pushes man to commercialism even at the expense of the planet that supports every form of life on

Sunday, September 22, 2019

Chinese Civilization Essay Example for Free

Chinese Civilization Essay The land here is broad and diverse. Among this immense piece of earth, one can find both farmer and businessman; mountain and plain; drought and rainfall; wasteland and farmland. It is vast, it is multifaceted. And yet these collections of disparate and dissimilar presences are bound as one, side by side with each other. They are together, they are connected. They are united, united under one name: China. It is impossible to choose a single word that exactly represents all the land of China. The Himalayan Mountains might have majesty, or the Forbidden City might have opulence, but certainly the two are quite different and cannot be swapped. Yet there is a word that can describe all the land of China: the cities, the mountains, the villages, the plains, the towns, the rivers, the deserts. That word is Beauty. Chinas cultural sphere has extended across East Asia as a whole, with Chinese religion, customs, and writing systems being adapted to varying degrees by neighbors such as Japan, Korea and Vietnam. The first evidence of human presence in the region was found at the Zhoukoudian cave. It is one of the first known specimens of Homo erectus, now commonly known as the Peking Man, estimated to have lived from 300,000 to 780,000 years ago China ranges from mostly plateaus and mountains in the west to lower lands in the east. Principal rivers flow from west to east, including the Yangtze (central), the Huang He (Yellow river, north-central), and the Amur (northeast), and sometimes toward the south (including the Pearl River, Mekong River, and Brahmaputra), with most Chinese rivers emptying into the Pacific Ocean. In the east, along the shores of the Yellow Sea and the East China Sea there are extensive and densely populated alluvial plains. On the edges of the Inner Mongolian plateau in the north, grasslands can be seen. Southern China is dominated by hills and low mountain ranges. In the central-east are the deltas of Chinas two major rivers, the Huang Heand Yangtze River. Most of Chinas arable lands lie along these rivers, and they were the centers of Chinas major ancient civilizations. Other major rivers include the Pearl River, Mekong, Brahmaputra and Amur. Yunnan Province is considered a part of the Greater Mekong Subregion, which also includes Myanmar, Laos, Thailand, Cambodia, and Vietnam. [47] In the west, the north has a great alluvial plain, and the south has a vast calcareous tableland traversed by hill ranges of moderate elevation, and the Himalayas, containing Earths highest point, Mount Everest. The northwest also has high plateaus with more arid desert landscapes such as the Takla-Makan and the Gobi Desert, which has been expanding. During many dynasties, the southwestern border of China has been the high mountains and deep valleys of Yunnan, which separate modern China from Burma, Laos and Vietnam. The Paleozoic formations of China, excepting only the upper part of the Carboniferous system, are marine, while the Mesozoic and Tertiary deposits are estuarine and freshwater, or else of terrestrial origin. Groups of volcanic cones occur in the Great Plain of north China. In the Liaodong and Shandong Peninsulas, there are basaltic plateaus. Part II CONTRIBUTIONS Society. Hundreds of ethnic groups have existed in China throughout its history. The largest ethnic group in China by far is the Han. This group, however, is internally diverse and can be further divided into smaller ethnic groups that share similar traits. Over the last three millennia, many previously distinct ethnic groups in China have been Sinicized into a Han identity, which over time dramatically expanded the size of the Han population. However, these assimilations were usually incomplete, and vestiges of indigenous language and culture still often remain in various regions of China. Because of this, many within the Han identity have maintained distinct linguistic and cultural traditions while still identifying as Han. Several ethnicities have also dramatically shaped Han culture, e. g. the Manchurian clothing called the qipao became the new Chinese fashion after the 17th century, replacing earlier Han styles of clothing such as the Hanfu. The modern term Chinese nation (Zhonghua Minzu) is now used to describe a notion of a Chinese nationality that transcends ethnic divisions. China has over 50 minority groups. Each group has different languages, customs, and traditions. Gap between the Rich and the Poor. The Chinese society was structurally complex and not much is known about it. Research is still on. Life in old Chinese society on a normal working day was hard and industrious for the farmers while luxurious and laid back for nobles and merchants. There was a wide demographic gap between the farmers and kings and nobles. The farmers were far more in population as compared to nobles. They were economically exploited and were made to work very hard. The nobles lived in luxurious palaces while the farmers in China survived in small huts. Naturally the nobles were highly regarded and lived with great riches. Religion. There are three main religions in China. They are Confucianism, Buddhism, and Taoism. They were suppressed by the CCP during the 20th century, but they are still alive and penetrating the minds of Chinese today. These religions are all widespread, and aside from other world religions, they all originated in China. Confucianism was the official philosophy throughout most of Imperial Chinas history, and mastery of Confucian texts was the primary criterion for entry into the imperial bureaucracy. Chinas traditional values were derived from various versions of Confucianism. A number of more authoritarian strains of thought have also been influential, such as Legalism. There was often conflict between the ideas and philosophies, for example, the Song Dynasty Neo-Confucians believed Legalism departed from the original spirit of Confucianism. Examinations and a culture of merit remain greatly valued in China today. In recent years, a number of New Confucians (not to be confused with Neo-Confucianism) have advocated that democratic ideals and human rights are quite compatible with traditional Confucian Asian values. With the rise of European economic and military power beginning in the mid-19th century, non-Chinese systems of social and political organization gained adherents in China. Some of these would-be reformers totally rejected Chinas cultural legacy, while others sought to combine the strengths of Chinese and European cultures. In essence, the history of 20th-century China is one of experimentation with new systems of social, political, and economic organization that would allow for the reintegration of the nation in the wake of dynastic collapse. Economics. By roughly 10,000 BCE, in the Neolithic Era, agriculture was practiced in China. Stratified bronze-age cultures, such as Erlitou, emerged by the third millennium BCE. Under the Shang (ca. 1600–1045 BCE) and Zhou (1045–771 BCE), a dependent labor force worked in large-scale foundries and workshops to produce bronzes and silk for the elite. The agricultural surpluses produced by the manorial economy supported these early handicraft industries as well as urban centers and considerable armies. This system began to disintegrate after the collapse of the Western Zhou Dynasty in 771 BCE, preceding the Spring and Autumn and Warring states eras. As the feudal system collapsed, much legislative power was transferred from the nobility to local kings. A merchant class emerged during the Warring States Period, resulting in increased trade. The new kings established an elaborate bureaucracy, using it to wage wars, build large temples, and perform public works projects. This new system rewarded talent over birthright; important positions were no longer occupied solely by nobility. The adoption of new iron tools revolutionized agriculture and led to a large population increase during this period. By 221 BCE, the state of Qin, which embraced reform more than other states, unified China, built the Great Wall, and set consistent standards of government. [5] Although its draconian laws led to its overthrow in 206 BCE, the Qin institutions survived. During the Han Dynasty, China became a strong, unified, and centralized empire of self-sufficient farmers and artisans, though limited local autonomy remained. The Song Dynasty (960–1279 CE) brought additional economic reforms. Paper money, movable type, the compass, and other technological advances facilitated communication on a large scale and the widespread circulation of books. The state control of the economy diminished, allowing private merchants to prosper and a large increase in investment and profit. Despite disruptions during the Mongol conquest of 1279, the Ming Dynasty continued the Songs economic development. However, when the isolationist Qing Dynasty came into power, Chinas economic development began to slow. Europes rapid development during the Industrial Revolution enabled it to surpass China—an event known as the great divergence. Trade with foreign nations on a large scale began during the reign of Emperor Wu, when he sent the explorer Zhang Yi to contact nations west of China in search of allies to fight the Xiongnu. After the defeat of the Xiongnu, however, Chinese armies established themselves in Central Asia, starting the famed Silk Road, which became a major avenue of international trade Paper and Printing. The greatest Chinese discoveries of all times which the whole world accepts even today are the art of paper making, printing, gun powder and magnetic compass. Paper making was an art which developed in ancient China and they used silk, cloth, bark, fiber and hemp. Later during the Han Dynasty, about 1800 years ago, paper making was refined and was being made from hemp and bark and later from bamboo. Printing technology was invented in ancient China as far back as the 8th century and by 868 they were using wood block printing which was used to print the first book in the world. Advancement in the technology came by 11th century when movable ceramic printer was invented during the rule of the Song Dynasty. By the time the Tang dynasty came to power in ancient China, printing and paper making techniques had prompted the invention of books and book shops in the cities. Compass and Gun Powder. The invention of these two had put ancient China in the fore front in terms of scientific discovery and development. The compass was extremely useful for trade and sea travel. Here they used magnets to magnetize a pointer made of iron. Later the western world borrowed the technique for the navigation on the sea. Gun powder was invented by accident when the ancient Chinese found that throwing some types of mineral powders in the fire produces color and sparkling flame. They used the technology for making fireworks. Later the same gunpowder changed the art of modern warfare when it was used by the European powers against their enemies. Politics and Government. Ancient China had monarchy, i. e. government headed by an emperor and a royal family. Chinese rulers also called monarchs based their government on the Confucian model, which taught that the ruler was a virtuous man who led by example†¦ Despotic leadership. China like many other countries at that time was an agriculture based country with the river Yangtze as its lifeline. During the ancient period the king would be the leader and would be more of a dictator than a king for the people who would take decisions beneficial to them. He has un-surpassing power in all areas be it economy or governance or agriculture which was the livelihood of the people. Earliest incident of despotic leadership could probably be traced back to the Hsia dynasty (2200 – 1750 BC) when the emperor Yao picked Shun as his successor to help his people who were burdened by the regular floods. Enlightened Leadership. Shun can be given credit for being an enlightened leader, but he was very harsh on his people. He could put any of his people to death if they did not agree with his leadership. Other punishments included using whip, stick and fines for small offences. He was succeeded by Yu, who founded Hsia, the first dynasty. During this dynasty the Chinese government or the emperor employed huge labor to work under four groups: military, farming, construction workers and textile labor. Textile labor were given the task of weaving silk thread by hand to make clothes for the royal family, construction work included public work such as building wall, enlarging canals for agriculture etc. Military. Ancient China was most of the time caught in battles against the Huns or the invaders. In military the casualty was very high, because at that time it was quiet common to have mass warfare killing thousands at the same time; ordinary soldiers were simply treated as pawns by the king and other leaders. Shan Dynasty (1750-1040 BC) was ruthless when it came to battles, they even made the whole family fight in battles together because he believed they would fight better with each other. Position of Women. The Shan Dynasty followed the philosophy of Yin and Yan and believed in giving lesser role to women in the society as compared to men. Women were not given opportunities and were treated as inferior. Efforts to reform the Chinese Government. The Chou Dynasty (1040 -256 BC) tried to bring improvements in the government after the corrupt Shan Dynasty and tried to employ the feudal system. This new form of government in ancient China collapsed and ended up with Warring states period (403- 221 BC). Furthermore, corrupt emperors caused the country to fall apart into a continuous war like situation. It was after these that the enlightened Qin Dynasty ruled, which tried to reform and unified the country and builds the Great Wall of China. The Ancient Chinese Government was more of Despotism rather than Enlightened Monarchy which works for the betterment of the people. Legal Systems. Many of the ancient legal systems were considered to be harsh by modern day standards. When societies were beginning to establish civil order and a government hierarchy often many premises seemed extreme; for example, Hammurabi’s Code and the eye for an eye principle or the torture practices common in Medieval Europe. Although, modern China may be suspected of human rights abuses, Ancient China’s legal system was based on morals and the inherent good of the citizens. The Ancient Chinese legal system evolved through the principles of Confucianism and Legalism along with the traditions and morals of Ancient Chinese life. Confucianism. Confucianism as a philosophy gained prominence in the early existence of Ancient China. The Confucian philosophy believed that social control and social order could only be created through education. Confucianism influenced the Ancient Chinese legal system as it believed that humans were inherently good and that order was based on respect for the King and one’s fellow man. The early legal system of Ancient China was as a result, hesitant to utilize codified or written law. This was because codified laws served to tell people what to do without explaining the reasoning. Instead of codified law, the legal system of Ancient China was initially intended to be secondary to moral reasoning. It was believed under Confucianism that by ruling through traditions, norms, and morals that those who broke the accepted conditions would be ashamed and ostracized from society. Over time however, it became clear that in some circumstances people’s self-interest would differ from society. It was because of this that the premises of Confucianism were mixed with those of Legalism to form the first codified law in Ancient China. Legalism. Legalism in contrast to Confucianism was based on the concept that humans were predisposed to evil or wrongdoing. This belief led to the understanding that codified law and punishments were needed in order to maintain order in society. When Ancient China began to incorporate these principles into their legal system a focus was placed on the ruler. It was important to these principles that the ruler remained above the law so that his word could act as a guide. It was also important to Legalism that a ruler was respected so that his laws and punishments were seen as just. As Ancient China’s legal system evolved it remained important that the law had the respect of the people and that the people understood the traditions. Important Principles. Ancient China’s legal system is one of the oldest legal traditions and yet unlike modern day systems there was no separation between civil and criminal law. The legal system of Ancient China was structured around the ruler being able to unify society’s interests while maintaining respect. This premise is why any crimes against the ruler received no mercy. After the ruler in Ancient China the family was held in the highest regard; this is why crimes against the family were considered one of the greatest offences. In general Ancient China’s legal system attempted to enforce filial piety, to uphold the respect of family ancestors, to avoid legal action when possible, to create deterrents to actions and to control outbursts. In comparison, to many other early legal systems, China’s system was relatively relaxed and centered on the citizens rather than government mandates. Ancient China’s legal system was founded on the traditions of the society it was meant to control allowing the system to evolve into the present day Culture. Daily life in Ancient China is as mysterious as it is old. The ancient Chinese were master creators, artists, craftsmen and warlords. They created paper, gunpowder for battles, matches, cannons, compass, umbrellas and many more. They created many artifacts. They developed many martial arts and other art forms such as calligraphy. They used coins with holes in them. As there were no banks at that time they used to collect the money through strings in the coins. Ancient China was ruled by many dynasties and was constantly plagued with war. The peasants celebrated spring which was a very important festival in their life. It was celebrated during spring to welcome a good harvest and good fortune. Usually young men and women paired up and sang and danced. Like today, even in ancient China the Dragon was a sign of good luck. Chinese art is well known throughout the world. Its painting and calligraphy established the guiding principals by which other civilizations would emulate. In Chinese art, each object has its own subjective meaning, and can be interpreted in many ways. To the Chinese, color and form are not just words, but are a part of what makes them a unique people; there ability to surround themselves with beautiful architecture and lavish technique know no bounds. People around the world love Chinese food, and so they should. Lots of tradition and care has gone into some of todays finest and most famous dishes. In addition, Chinese medicine has been around for centuries, but only recently has it become a new, and almost baseline treatment, for common ailments such as headaches and fevers. Ancient Chinese Paintings. There are very few remains of paintings of ancient times except on ceramic and tiles, a clear historic development can be traced only after 5th century AD. Hundreds of caves of Buddhist wall paintings and scrolls dating back to late 5th century AD have been discovered. A highly organized system of representing objects was discovered different from the western perspective; the greatest strength of this art is its incomparable mastery of lines and silhouette. The art of figure painting reached it’s height during the Tang Dynasty, which also saw the rise of the great art of landscape painting executed as brush drawings with color washes Chinese Music and Poetry. Ancient Chinese music can be traced back to Neolithic age based on the discovery of bone flutes. Poetry and Music were influenced by the Book of Song, Confucius and the Chinese poet and statesman Qu Yuan. In the Xia, Shang and Zhou dynasties music was only for the royal families and dignitaries, entering the mainstream only in the Tang Dynasty. In the Song Dynasty ,Kunqu, the oldest form of Chinese opera developed and it was during this time that the writers and artists came up with new form of lyric poetry –Ci. Other Art Forms. There were other forms of art apart from the ones mentioned above during ancient times in China like Seals, Calligraphy, Embroidery, kite making, paper cutting and shadow puppetry. Ancient Chinese culture boasts of glorious forms of Art and traditional crafts which are just two of the many jewels in China’s 5000 year history.

Saturday, September 21, 2019

Darwins Theory of Evolution by Natural Selection Essay Example for Free

Darwins Theory of Evolution by Natural Selection Essay The mechanisms for individuals in a population to survive heterogeneous habitats have been a strong debate within the scientific community. The native European Littorina obtusata are a great model organism to study Darwin’s Theory of Evolution by Natural Selection. This is because of their vast phenotypic characteristics, particularly their evolving shell thickness throughout history due to predatory pressures of the new arrival of Carcinus maenas. Here we test whether L obtusata three most critical tenants of Darwin’s theory of evolution by natural selection; variation within a population, heritability, and selection. By observing the shell thickness of East Coast of N. America L. obtusata where predatory C. maenas are common versus the West Coast of N. America where C. maenas are not found, it will further provide evidence whether these shell thickness differences are due to natural selection predatory or phenotypic plasticity occurring. This was tested by placing banded crabs in both East and West populations of L. btusata and observing how their shell thickness decreased, further proving that L. obtusata cannot sense or smell the presence of C. maenas. These findings provide further evidence for Seeley’s research that the accelerating morphological changes of L. obtusata shell thickness was in response to strong selection by C. maenas and not because speciation occurring. Some believe that Darwin’s theory of evolution by natural selection is operating the morphological breaks found in fossil records within a population. Darwin’s book On the Origin of Species listed four basic postulates to natural selection; there must be variations among individuals in a population, variations must be heritable, survival and reproduction must be variable and non-random (Darwin, 1859). As a result, every generation there will be slight changes in the population. One scientist in particular, Robin Seeley, tried understanding Darwin’s theory of Natural Selection by studying the thickness of shells of flat periwinkles, Littorina obtusata, of Appledore Island and the new arrival of predatory green crabs, Carcinus maenas. Seeley noted acceleration in natural selection that normally is not observed within the L. obtusata population in response to strong selection by C. maenas. This is because shell thickness affects the survivability and reproduction of L. obtusata when C. maenas claws break them to meal (Trussel, 1996). The observation confirmed that when C. maenas were introduced in the East Coast of N. America, L. obtusata range of shell thickness increased compared to the West Coast of N. America L. obtusata populations where predatory C. maenas were not found (Seeley, 1986). These vast morphological differences in their shell thicknesses was thought to occur because of the C. maenas selection for the thinner-shelled L. obtusata. Seeley’s research further showed that speciation was not occurring within the intertidal snails as many previous scientists claimed.

Friday, September 20, 2019

Online Ticket Booking System Information Technology Essay

Online Ticket Booking System Information Technology Essay Apart from the efforts of me, the success of any assignment depends largely on the encouragement and guidelines of many others. I take this opportunity to express my gratitude to the people who have been instrumental in the successful completion of this assignment. I would like to show my greatest appreciation to Lecturer, Ms. Nayeema Rahman. I cant say thank you enough for his tremendous support and help. I feel motivated and encouraged every time I attend his meeting. Without his encouragement and guidance this assignment would not have materialized. Abstract The purpose of the online ticket booking system is to provide another way for purchasing cinema tickets in advance. It is an automatic system. This paper presents a formal use of the Object Oriented analysis and Design, we will illustrate our system by providing Use Case Diagrams with Specifications, Activity Diagrams, Class Diagrams, Sequence Diagrams, State Machines and Communication Diagrams on the functionalities of the system, also we will provide some process description and data dictionary. The goals of our system are: Record performance details Record customer details Record tickets sold Print tickets Print address labels for telephone booking Task 1: Functional Modelling Identification of Actors Use Cases Analyzing the existing system we figured out that, there are two main scopes to be covered in the system. The scopes are Performance Planning and Ticket Booking. We used the below table to identify the Actors and the Use Cases for the system. User Role Use Case Theatre Manager Performance planning Define the type of the performance and name it. Performance scheduling Define date and time of the performance. Artist booking Book an artist for the performance. Ticket pricing Determine a price for the ticket. Clerk Check schedule Check the performance schedule for a particular show on a date. Check seat availability Checks for available seats Capture customer information Record customer details Check ticket price Check for ticket price for particular show. Sell ticket Record tickets sold. Print ticket Print ticket for the customer. Print address label Print address label for telephone booking. Use Case Diagram Following diagram shows the overall view of the Ticket Booking System for Theatre. Figure 1: Use Case Diagram (Performance Planning Ticket Booking) Use Case Specification Table 1: Use Case of Performance Planning Number: UC01 Req. Doc Ref: Name: Performance Planning Status: Actors: Theatre Manager Pre-requisites: User should be logged in the system. Goal: Defining the performance type and naming it. Use Case Relationships: Extend:UC02, UC03 Include: Association: Generalization: Description: Index Actor Event 1 User enters the name of the performance. 2 User enters the type of the performance. 3 System checks for all required data entry. 4 System connects to the database. 5 System writes data into the database. 6 System shows a confirmation message after successful database writes. Alternatives: Index Actor Event A 3.1 Enter required information. A 4.1 Check network connectivity A 4.2 Check database connectivity A 4.3 Check database user role A 5.1 Theatre manager gets notification of unsuccessful operation. Table 2: Use Case of Performance Scheduling Number: UC02 Req. Doc Ref: Name: Performance Scheduling Status: Actors: Theatre Manager Pre-requisites: User should be logged in the system. Performance planning (UC01) should be inserted into the system. Goal: Define date and time of the performance. Use Case Relationships: Extend: Include: Association: Generalization: Description: Index Actor Event 1 User selects the desired performance from the system. 2 User enters the date of the performance. 3 User enters the time of the performance. 4 System checks for all required data entry. 5 System connects to the database. 6 System writes data into the database. 7 System shows a confirmation message after successful database writes. Alternatives: Index Actor Event A 3.1 Enter required information. A 5.1 Check network connectivity A 5.2 Check database connectivity A 5.3 Check database user role A 6.1 Theatre manager gets notification of unsuccessful operation. Table 3: Use Case of Artist Booking Number: UC03 Req. Doc Ref: Name: Artist Booking Status: Actors: Theatre Manager Pre-requisites: User should be logged in the system. Performance planning (UC01) should be inserted into the system. Goal: Book an artist for the performance. Use Case Relationships: Extend: Include: Association: Generalization: Description: Index Actor Event 1 User selects the desired performance from the system. 2 User enters the name of the desired artist. 3 System checks for all required data entry. 4 System connects to the database. 5 System writes data into the database. 6 System shows a confirmation message after successful database writes. Alternatives: Index Actor Event A 3.1 Enter required information. A 4.1 Check network connectivity A 4.2 Check database connectivity A 4.3 Check database user role A 5.1 Theatre manager gets notification of unsuccessful operation. Table 5: Use Case of Schedule Checking Number: UC04 Req. Doc Ref: Name: Schedule Checking Status: Actors: Clerk Pre-requisites: User should be logged in the system. Performance scheduling (UC02) should be inserted into the system. Goal: Check the performance schedule for a particular show on a date. Use Case Relationships: Extend: UC01 Include: Association: Generalization: Description: Index Actor Event 1 User selects a desired performance and a date. 2 System shows a confirmation message for the availability of the performance. 3 System allows the user to perform the next event (UC06). Alternatives: Index Actor Event A 1.1 System notifies the user that the performance is unavailable on the desired date. Table 6: Use Case of Check Seat Availability Number: UC05 Req. Doc Ref: Name: Check Seat Availability Status: Actors: Clerk Pre-requisites: User should be logged in the system. Schedule checking (UC05) should be performed by the user. Goal: Checks for available seats. Use Case Relationships: Extend: Include: Association: Generalization: Description: Index Actor Event 1 User selects a desired performance and a date. 2 System shows a confirmation message for the availability of the seat. 3 System allows the user to perform the next event (UC07). Alternatives: Index Actor Event A 1.1 System notifies the user that the seat is unavailable for the desired performance. Table 7: Use Case of Capturing Customer Information Number: UC06 Req. Doc Ref: Name: Capture Customer Information Status: Actors: Clerk Pre-requisites: User should be logged in the system. Seat checking (UC06) should be performed by the user. Goal: Record customer details. Use Case Relationships: Extend: Include: Association: Generalization: Description: Index Actor Event 1 User enters the name, address and telephone number of the customer. 2 System checks for all required data entry. 3 System connects to the database. 4 System writes data into the database. 5 System shows a confirmation message after successful database writes. Alternatives: Index Actor Event A 2.1 Enter required information. A 3.1 Check network connectivity A 3.2 Check database connectivity A 3.3 Check database user role A 4.1 User gets notification of unsuccessful operation. Table 8: Use Case of Checking Ticket Price Number: UC07 Req. Doc Ref: Name: Check Ticket Price Status: Actors: Clerk Pre-requisites: User should be logged in the system. Ticket pricing information (UC04) should be entered into the system. Goal: Check for ticket price for particular show Use Case Relationships: Extend: UC01 Include: Association: Generalization: Description: Index Actor Event 1 User selects a desired performance form the system. 2 System shows the defined pricing for the ticket. Alternatives: Index Actor Event A 2.1 Price not found is notified to the user. Table 9: Use Case of Selling Ticket Number: UC08 Req. Doc Ref: Name: Selling Ticket Status: Actors: Clerk Pre-requisites: User should be logged in the system. Check ticket price (UC08) should be performed by the user. Goal: Record tickets sold. Use Case Relationships: Extend: Include: Association: Generalization: Description: Index Actor Event 1 User selects the desired performance from the system. 2 User enters ticket selling date and the ticket price for the desired performance. 3 System checks for all required data entry. 4 System connects to the database. 5 System writes data into the database. 6 System shows a confirmation message after successful database writes. Alternatives: Index Actor Event A 3.1 Enter required information. A 4.1 Check network connectivity A 4.2 Check database connectivity A 4.3 Check database user role A 5.1 Theatre manager gets notification of unsuccessful operation. Table 10: Use Case of Printing Ticket Number: UC09 Req. Doc Ref: Name: Printing Ticket Status: Actors: Clerk Pre-requisites: User should be logged in the system. Check ticket price (UC08) should be performed by the user. Goal: Print ticket for the customer Use Case Relationships: Extend: Include: Association: Generalization: Description: Index Actor Event 1 User triggers the print command for the sold ticket. Alternatives: Index Actor Event A 1.1 Printer not found notification will be given to the user. Table 11: Use Case of Checking Ticket Booking Type Number: UC10 Req. Doc Ref: Name: Check Ticket Booking Type Status: Actors: Clerk Pre-requisites: User should be logged in the system. Print ticket (UC10) should be performed by the user. Goal: Determine the ticket booking type. Use Case Relationships: Extend: Include: Association: Generalization: Description: Index Actor Event 1 User selects the booking type to identify whether the ticket was booked over phone. Alternatives: Index Actor Event Table 12: Use Case of Printing Address Label Number: UC11 Req. Doc Ref: Name: Print Address Label Status: Actors: Clerk Pre-requisites: User should be logged in the system. Ticket booking type (UC11) should be performed by the user. Goal: Print address label for telephone booking Use Case Relationships: Extend: UC11 Include: Association: Generalization: Description: Index Actor Event 1 User triggers the print command to print the address label. Alternatives: Index Actor Event Activity Diagram Based on the system observation, a high level activity diagram is drawn modelling the process of ticket booking for theatre. The activity diagram will bring everybody on a common ground for understanding the system functionalities. Figure 2: Activity Diagram (Performance Planning Ticket Booking) Task 2: Structural Modelling Class Diagram (attributes operations) The following diagram depicts the relationships between the classes for Ticket Booking System along with the attributes and the operations. Figure 3: Class Diagram (Performance Planning Ticket Booking) Task 3: Behavioural Modelling Sequence Diagram The following diagram is a sequence diagram for buying ticket. There are few things I want to state, that this is just one of the sequences of buying ticket. There could be more alternative sequence for buying ticket. For example, we can choice a performance before buying ticket. But the overall structures of all buying ticket sequence are similar, so, others sequence will not be shown. Figure 4: Sequence Diagram (Create Performance) Figure 5: Sequence Diagram (Schedule Performance) Figure 6: Sequence Diagram (Set price) Figure 7: Sequence Diagram (Sell tickets) State Machine Diagram Below diagram is used to give an abstract description of the behaviour of the ticket booking system. This behaviour is analyzed and represented in series of events that could occur in one or more possible states. Hereby each diagram usually represents objects of a single class and tracks the different states of its objects through the system. Figure 8: State Machine Diagram (Performance Planning Ticket Booking) Communication Diagram Communication diagram is similar to sequence diagrams, but it provides an overview of the relationships between objects, rather than focusing on the order of messages between objects, as the software executes. Figure 9: Communication Diagram (Performance Planning Ticket Booking) Task 4: Data Protection Law Introduction In Bangladesh Cyber Acts are in a process to be implemented. The Government of Bangladesh has formed National Council for Science and Technology (NCST). The Executive Committee for NCST has also been formed to implement policies formulated by the Council. Currently NCST is working with the general boundaries to protect the ICT industry and specific laws are yet to be decided. For our application we can follow the acts and regulations from UK. Laws, Regulations and Best Practices The Data Protection Act gives individuals the right to know what information is held about them. It provides a framework to ensure that personal information is handled properly. The Act works in two ways. Firstly, it states that anyone who processes personal information must comply with eight principles, which make sure that personal information is: Fairly and lawfully processed Processed for limited purposes Adequate, relevant and not excessive Accurate and up to date Not kept for longer than is necessary Processed in line with your rights Secure Not transferred to other countries without adequate protection The second area covered by the Act provides individuals with important rights, including the right to find out what personal information is held on computer and most paper records. Data protection laws should be adequate enough to maintain the below options at a minimum- How to access information This allows one to find out what information is held about him/her on a computer and within some manual records, such as medical records, files held by public bodies and financial information held by credit reference agencies. Correcting information This allows one to apply to a court to order a data controller to correct, block, remove or destroy personal details if they are inaccurate or contain expressions of opinion based on inaccurate information. Preventing processing of information This means one can ask a data controller not to process information about him/her that causes substantial unwarranted damage or distress. The data controller is not always bound to act on the request. Preventing unsolicited marketing This means a data controller is required not to process information about one for direct marketing purposes if he/she asks them not to. Preventing automated decision making This means one can object to decisions made only by automatic means. For example, where there is no human involvement. Claiming compensation This allows one to claim compensation through the courts from a data controller for damage, and in some cases distress, caused by any breach of the act. Exempt information This allows one to ask the information commissioner to investigate and assess whether the data controller has breached the act. There should be a committee (in our case NCTS could be the choice) that will have legal powers to ensure that organizations comply with the requirements of the data protection laws. It is notable here that these powers are focused on ensuring that organizations meet the obligations of the act. To promote best practices the regulation- The committee should carry out consensual audits with data controllers to assess their processing of personal information. The committee should see auditing as a constructive process with real benefits for data controllers. The committee should adopt, wherever possible, a participative approach including working closely with the data controller to agree the timing and scope of the audit. Comply with Data Protection Law A short checklist can help us to comply with the data protection laws in our system. Maintaining all the items in the checklist does guarantee compliance but it should mean that we are heading in the right direction. We should store only the related information about the customer and the personnels involved with the system. And we need to make sure that we know what we are going to do with the information. The person should know, what are the information we are holding. He/she should understand what it will be used for. Information should be held securely whether its on the paper or on computer. The system should prevent any unwanted access of its resources. The information should be deleted as soon as there is no need for it. Access control list should be created with a strict need to know to prevent data access from all kind of users of the system. We should train the stuff in their duties and responsibilities under the act that we are putting them in to practice. Recommendations Being a strategic regulator means that, in so far as we have a choice, we have to be selective with our interventions. We will therefore apply our limited resources in ways that deliver the maximum return in terms of a sustained reduction in data protection risk. That is the risk of harm through improper use of personal information. There are priorities we have to set. We need to focus most attention on situations where there is a real likelihood of serious harm. We also need to focus on situations where our intervention is most likely to make a long term as well as a short term difference. When we intervene we must do so in a way that gives us the best possible return and remember that we will often be at our most effective when working closely with others. We are entitled to have legitimate expectations of those who are in a position to influence data protection risk. Our effectiveness depends on them seeking and welcoming our reasonable interventions. Furthermore we have an important international role. Data protection risk in the Bangladesh is increasingly influenced by events worldwide. Our risk-based approach is in line with good regulatory practice. It does not mean that we seek to remove all data protection risk. We do what we can to moderate the most serious risks and protect those who are most vulnerable to improper use of their information. But we will not try to take away freedom of choice and will remember that individuals themselves ought to be best placed to make decisions about their own interests. Part of our job is to equip individuals with the knowledge and tools to enable them to make their own well-informed decisions about the use and disclosure of their personal information. Being a strategic regulator also means extending our approach beyond simply improving (through guidance, persuasion and regulatory action) the behaviour of organisations that handle personal information. We also have a legitimate role in informing and influencing the market or political environment in which they operate. Thus we will seek to have long term influence over government and the legislature at Westminster and in the devolved administrations as well as over representative bodies and other stakeholders, to ensure privacy friendly outcomes. We will also seek to influence the legal framework that governs our own work to ensure that data protection requirements are simple, meaningful and proportionate and that we have the flexibility and tools to regulate effectively. Building public confidence in data protection is the key in our approach. We protect people, not just information. This means we need to engage with the public and explain what we do in a way that they can easily understand and relate to. This commitment is at the heart of how we approach our job as data protection regulator and will inform all our data protection tasks including complaints handling and the provision of advice. Task 5: Ticket Printing Produce Tickets To protect the tickets from being forged or copied we can use a barcode on each ticket. Well print a unique 10-digit number as a barcode on the tickets, which will be checked at the entrance with the software and a simple barcode scanner. As each barcode can only be used once to enter, copied or forged tickets are rejected and the revenues are protected. By default, the tickets will be labeled with random numbers with 10 digits, which will serve as copy protection. Figure 10: Sample barcode to print on tickets Seat Allocation Tickets will be printed with seat numbers, with serial numbers. Section names can be in different colours to facilitate orientation. For sections with an aisle a seat description can be added to the seat number (e.g. left, right), which helps the visitor to find the seat. Figure 11: Sample barcode to print on ticket with seat no. Hardware for printing tickets There are numerous tickets available in the market but I found D-Link printers suitable for our system. Below are the details of the hardware- Description: With the DSA-3100 and the DSA-3100P Ticket Printer, businesses and organizations can provide free or fee-based broadband Internet access to their customers or members. No complex billing system is required, guaranteeing a quick and convenient Internet experience for operators and their hot spot users. The DSA-3100P is hassle-free hot spot ticket printer that communicates with the DSA-3100 Public/Private Gateway to generate and print log-in usernames and passwords for the hot spot customers. Patented for easy loading, the DSA-3100P is connected to the DSA-3100 gateway via its RS-232 serial communication. With the DSA-3100P, the DSA-3100 gateway can manage and store up to 2,000 user accounts in its internal database and support up to 50 logged-in users at any time. Features: Printing Method: Thermal Dot Line Printing Print Speed: 80 mm/Second Connectivity: RS-232 Serial Compatibility: D-Link DSA-3100 Public/Private Gateway Specification: Manufacturer D-Link Manufacturer Part # DSA-3100P Device Type Thermal Line Label Printer Media Handling Media Type Receipt Paper Max Media Size 2.2 Max Printing Width 1.9 Roll Maximum Outer Diameter 3.3 Total Capacity 1 Roll Connectivity Interfaces 1 x RS-232 Serial Included Cables 1 x Serial Cable Power Requirements Power Supply External, 3.5 V DC Dimensions(H X W X D) Unit 4.6 x 3.8 x 6.3 Weight Unit 0.9 lbs Price: $375 Figure 12: D-Link DSA-3100P Ticket Printer Task 6: Database Design Database Design Figure 13: Database Design (Performance Planning Ticket Booking) Data Dictionary Table: Artist Attribute Data Type Length Primary Key Ref. Table ArtistID Integer Yes ArtistName Varchar 100 Table: Performance Attribute Data Type Length Primary Key Ref. Table PerformanceID Integer Yes PerformanceName Varchar 100 TicketPriceID Integer TicketPrice ArtistID Integer Artist Table: TicketPrice Attribute Data Type Length Primary Key Ref. Table TicketPriceID Integer Yes PerformanceID Integer Performance TicketPrice Numeric (18,2) Table: PerformanceSchedule Attribute Data Type Length Primary Key Ref. Table ScheduleID Integer Yes PerformanceID Integer Performance PerformanceDate Date Table: Customer Attribute Data Type Length Primary Key Ref. Table CustomerID Integer Yes Name Varchar 100 Address Varchar 250 Telephone Varchar 20 Table: Sales Attribute Data Type Length Primary Key Ref. Table SalesID Integer Yes PerformanceID Integer Performance ScheduleID Integer PerformanceSchedule TicketPriceID Integer TicketPrice CustomerID Integer Customer BookingType Boolean Table: SeatAllocation Attribute Data Type Length Primary Key Ref. Table SeatID Integer Yes SalesID Integer Sales SeatNoFrom Integer SeatNoTo Integer Task 7: Object-Orient Approaches vs. Standard Approaches Standard Approaches Standard approach includes many variations based on techniques used to develop information system with structured and modular programming. Standard analysis and design techniques are a software engineering methodology for describing systems as a hierarchy of functions. Below are the characteristics of Standard Approaches. Approach for structured analysis consists of the following objects: Data Flow Diagrams (DFD) Shows processes and flow of data in and out of these processes. Does not show control structures (loops) Contains 5 graphic symbols (shown later) Uses layers to decompose complex systems Can be used to show logical and physical Is a quantum leap forward to other techniques at the time, I.e. monolithic descriptions with globs of

Thursday, September 19, 2019

Social Time In The Life Of A Man And Society :: Philosophy Philosophical Essays Sociology

Social Time In The Life Of A Man And Society ABSTRACT: The subject of this paper is social time-the peculiarities of the Past-Present-Future in social processes, and their unbreakable connection. I also focus on the necessity of taking stock of time in human activities and in the societal development. The Past in progress of society signifies the Already-happened which has become the possession of history. This Past exerts an enormous influence on the Present, determining it both directionally and functionally. The Present includes the Present itself, a part of the Past, and some elements of the Future. It represents the only reality for human beings as life is lived in the Present only. The Present creates the material and spiritual preconditions for the Future. Resolution of contemporary global problems is crucial for our Future which runs sequentially in three stages: immediate Future, visible Future and distant Future. All three exert influence on the Present by providing ideological and informational images. Time disciplin es our minds and wills, organizes our actions and promotes our cognitions of the Past, the Present and the Future. All the scientific philosophical systems, worked out in the history of mankind, have a big methodological and educational meaning. Separate categories, like social time, having attributive qualities are not an exception. Everyone: a scientist, a politician, an ordinary person, the whole mankind can't help taking into account the factor of time in their life and activities. We can say that they need it like the air to breath. That is why time was investigated in the theoretical systematized form by well-known philosophers and scientists of the past centuries - Aristotle, Augustine, Kant, Newton, Hegel, Marx, and ones of the Modern Age - Einstein, Russell, Heiddeger, Spirkin, etc. Each of them contributed to the understanding of time and its qualities. The most important issues of the past can be summarized in the following statements. Time is an attribute of the matter, its integral quality; time is indissolubly connected with space and motion; there is no "absolute" time in the material world. Time in the form of category, being abstract, can exist only in the theory and be used in scientific purposes. Time has important qualities: objectivity, that is it exists as the matter irrespective of our will and consciousness; it is characterized by the eternity of its duration - it has neither begging nor end; and it is contradictory. The latter means: from the one hand, time is eternal, on the other hand, all objects and processes exist for a certain time and have an end.

Wednesday, September 18, 2019

Management and Ethics Essay -- essays research papers

Management Delegation Delegation can be summarized as the process of functioning and working through others to ensure the completion of a project. For proper delegation, management must possess the proper planning and patience skills for effective and successful delegation to occur. Phases of Delegation For effective delegation to lead to the completion and success of a project, management must have a set plan in what needs to be delegated and to know whom the task should be delegated. In planning, management must meet with the chosen person in order to describe, in detail, the assignment and reasoning for the work being delegated. In organizing the completion of a project, management needs to establish when and where to meet with personnel in order to review the progress and plan for the next stages. When a properly organized project is delegated, the amount of time is freed up from one specific person, which makes for fewer mistakes and allows for others’ skills and capabilities to develop. In addition, new ideas and opinions with how to go about completing the project are _____________. Once a project is underway and boundaries and responsibilities have been set, management needs to properly monitor, encourage and support those around. It is very important that employees feel appreciated and that they are a part of the project’s success. A person’s efforts and work must be acknowledged, accepted and rewarded. When management delegates work, and takes the appreciation without giving credit to the personnel who worked just as hard to achieve the successful completion of the project, even if it just is a simple â€Å"you did a great job†, the next project will not receive the same amount of attention and success. â€Å"Sometimes delegation does mean lowering your own exacting standards and letting people find their own solutions and ways of doing things. But delegation can also give you the opportunity to give people the support they need to accomplish the job without being up to your elbows in the work yourself. Delegation is an art, a key management skill that involves a lot more than just getting the work done.† (Impact Factory 2001). Legal Delegation Depending on the project to be accomplished, management needs two questions to be answered: what needs to be delegated by identifying the portions of the subject of which to delegate; and who is capable of handlin... ...rt how plaintiff’s appeal brief was supported. Of course, the deadline for our reply was quickly approaching; therefore, the attorney needed this information within the same day. In order to properly manage the timing and information sought, I needed to delegate a portion of this research to get the job done, but to allow myself more time in order to tackle the bigger issues. After meeting with and discussing the information needed, parameters were set and a degree of authority was given to others who saw this opportunity as a way to be recognized by management. Because various portions of this mission were sourced out, time was freed up from everyone having this burden on themselves and it developed other people's skills and capabilities on how, where and why to research and new ideas were generated in how to complete the work in a more organized, efficient way. As with anything in life, delegation has positive and negative aspects. However, with proper planning, accurate organization, motivation and the value of learning, delegating a project or being assigned a task is educational, valuable and rewarding for the future, especially when the outcome is a successful job well done. Management and Ethics Essay -- essays research papers Management Delegation Delegation can be summarized as the process of functioning and working through others to ensure the completion of a project. For proper delegation, management must possess the proper planning and patience skills for effective and successful delegation to occur. Phases of Delegation For effective delegation to lead to the completion and success of a project, management must have a set plan in what needs to be delegated and to know whom the task should be delegated. In planning, management must meet with the chosen person in order to describe, in detail, the assignment and reasoning for the work being delegated. In organizing the completion of a project, management needs to establish when and where to meet with personnel in order to review the progress and plan for the next stages. When a properly organized project is delegated, the amount of time is freed up from one specific person, which makes for fewer mistakes and allows for others’ skills and capabilities to develop. In addition, new ideas and opinions with how to go about completing the project are _____________. Once a project is underway and boundaries and responsibilities have been set, management needs to properly monitor, encourage and support those around. It is very important that employees feel appreciated and that they are a part of the project’s success. A person’s efforts and work must be acknowledged, accepted and rewarded. When management delegates work, and takes the appreciation without giving credit to the personnel who worked just as hard to achieve the successful completion of the project, even if it just is a simple â€Å"you did a great job†, the next project will not receive the same amount of attention and success. â€Å"Sometimes delegation does mean lowering your own exacting standards and letting people find their own solutions and ways of doing things. But delegation can also give you the opportunity to give people the support they need to accomplish the job without being up to your elbows in the work yourself. Delegation is an art, a key management skill that involves a lot more than just getting the work done.† (Impact Factory 2001). Legal Delegation Depending on the project to be accomplished, management needs two questions to be answered: what needs to be delegated by identifying the portions of the subject of which to delegate; and who is capable of handlin... ...rt how plaintiff’s appeal brief was supported. Of course, the deadline for our reply was quickly approaching; therefore, the attorney needed this information within the same day. In order to properly manage the timing and information sought, I needed to delegate a portion of this research to get the job done, but to allow myself more time in order to tackle the bigger issues. After meeting with and discussing the information needed, parameters were set and a degree of authority was given to others who saw this opportunity as a way to be recognized by management. Because various portions of this mission were sourced out, time was freed up from everyone having this burden on themselves and it developed other people's skills and capabilities on how, where and why to research and new ideas were generated in how to complete the work in a more organized, efficient way. As with anything in life, delegation has positive and negative aspects. However, with proper planning, accurate organization, motivation and the value of learning, delegating a project or being assigned a task is educational, valuable and rewarding for the future, especially when the outcome is a successful job well done.

Tuesday, September 17, 2019

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This note presents the mechanical design of the system in question and more experimental findings which support the assumption of the novel model constructed there. Moreover, this note contains first conclusions and preliminary discussions. A system composed of a metallic cylinder filled with pressured air (up to 5 ATM), and a rubber, square sectioned ring, as a seal was Investigated theoretically and experimentally. Under a certain pressure difference (Internal minus atmosphere pressure – p) and external sealing force, the rubber seal is compressed (h) and should prevent air leakage.However, experiments show a continuous, nonlinear decrease in p(t) as a function of time. A few classical (macro) thermodynamic models for predicting p(t), via considering air flow through cracks, have been suggested before, based on [1] but they have failed to describe the profile in question due to the coupled constitutive properties of rubber and a construction that allow the creation of micro- scale â€Å"tunnels† in the rubber-lid interface, through which the air can pass.A novel heuristic model, which assumes a symmetry preserving analogy between the micro-scale air tunnels and the rubber polymer strands is proposed. Thus, polymer equations based on statistical thermodynamics are applied on the alarm streamlines. Using this model, there are four unset parameters whose values are being determined by the experimental profiles, similar to the semi-phenomenological rubber model of Mooney-Rivaling. An excellent correspondence between the model and physical essence of the phenomenon.Many standard trendiest have been tried and failed to describe p(t) accurately, including 3rd order polynomial which has also four parameters. Key-words: – Sealing, Pressure drop, Air leakage, Air-polymer analogy, Polyp-Air, Micro-Macro, Language. Ascribing air flow through cracks are available in [2], [3], but those have to be adjusted to describe air flow through rubber-metal inter face. In the following note we will describe the experiment set mechanical design and the final system configuration itself.Moreover, we will mention some results regarding the experiment. 1 Introduction An air pressure vessel (up to ATM) is composed of a metallic cylinder and a cover, and sealed with a rubber, square sectioned ring, as seen in Fig. L . Under a certain pressure difference (internal minus atmosphere pressure – p) and external sealing force, he rubber seal is compressed (h) and should prevent air leakage. However, experiments show a continuous, nonlinear decrease in p as a function of time for small values of h (up to of the initial vertical dimension – ho).A few classical (macro) thermodynamic models for predicting p(t), by describing air flow through cracks (of heat regenerator for example) , have been previously suggested but they have failed to accurately describe the profile in the following specific setup due to the coupled constitutive property of rubber and a construction that allows the creation of micro-scale â€Å"tunnels† in the rubber-lid interface, through which the air can pass. A few more mathematical and physical models of 2 Experiment Setup 2. Introduction and Targets Consider the axis-symmetric setup where the inner pressure is set to a constant value, which is different from the atmospheric pressure (fig. 1). The â€Å"Force† preventing from the piston to pop up and also causes the rubber seal (black) to be subjected to unsocial compression. Thus, the vertical length – originally ho – decreases to a controlled value h. Once deformed enough, the seal prevents leakage of air from the inside. Note that thanks to the upper airway the outer surface of the seal is subjected to the time measure. . 2. 1 Variables and their measuring methods p – with a computerized pressure gage installed as part of the cylinder.. Ho (free vertical dimension of the rubber sample) – with a microme ter h (current vertical dimension of a rubber sample) – using LIVED that track the displacement of the piston from its free force position. T (time)- by the computer clock. T (the temperature of the gasket or air) – with a thermocouple installed as a part of the cylinder. Only for additional data collecting proposes, not a controlled variable.The main target is to investigate the pressure vs.. Time p(t) profile. The seal's function, is to preserve the pressure difference p=P-Pa between the two gasket sides. We'd like to observe how the magnitude of the initial pressure difference and the controlled deformation influence on the profile. The mechanism of air leakage through the seal is yet to be determined but when diffusion is neglected one can presume that the air flows through the rebuttal interface. Our initial assumption is that air flows through narrow cracks-like interracial passages.The assumption about the diffusion arises from mineral notion about the character istic time of gas diffusion through rubber in various applications, which is much larger than these experiments periods (about 1000 seconds). For example, based on [4], the pressure drop in 1000 seconds via diffusion in an UN-defected aircraft tire having similar pressure difference is 0. 06% at most. There is extensive work on air flow through material cracks. 2. 2. 2 Important Technical Aspects See details in fig. 2 for the following considerations. Deformation needs to be assured.The force is actuated via a fine screw, enables measuring the vertical displacement with a LIVED and control he value to it with satisfying precision (10 microns). The purpose of the center ball is to transfer the pure vertical movement without rotational movement and torsion. Seal eccentricity: the experiment should be designed to assure closing force as uniform as possible, although it'll never be ideal, so it'll be wise to try centering the seal and avoid creating preferable air flow sites due to lack of symmetry in the compression field.In the following setup â€Å"hand tolerance† is satisfying. Starting the â€Å"stopwatch† (time measure): practically, the seal is influenced by the way the pressure and deformation are reached. To overcome this problem, the experiment should be done in a way assuring results independent from the initialization. Experiment was stopped when pressure changes are very small. 2. 2 Course of Experiment Preliminary experiments showed a continuous air flow and pressure drop all along the experiment. The general p(t) profile exhibited â€Å"exponential decay† type of behavior.We shall now briefly describe the experiment variables related issues such as the creation of p(t=O) and h , and the protocol of starting/stopping Force pa 2. 2. 3 The Experiment We measure p as a function of time, and determine owe p(t=O)= pop and h influence this profile. Observe fig. 2 for the actual setup. The first step is deforming the seal. Than, opening the main valve ( not in fig. 2), connected to the supply line, and building the pressure to a desired, stable value (waiting for stabilization is crucial). The secondary valve was then closed and p(t) was than monitored.Figure 1 – Schematic section of the experiment setup. The compressed air is colored with blue. -2- Screw ones on the surface) move finely due to compression and each strand remain attached to its original Junctions. The Junctions are getting closer ND dense and so are the strands in the bulk of the rubber gasket, which were dense enough already to prevent air flow. However, the surface isn't a mosaic of Junctions but more of a blend of Junctions and loose strands – strands connected only to one junction. Had the surface was a lattice of Junctions, the contact mechanic would have been similar to metal-on-metal mechanics.But this is not the case. Due to those loose strands, the surface only embedded with Junctions and between them – an entanglemen t of loose stands, rolled and smeared on the Junctions beneath them, preventing the creation f classic surface contact. In order to understand the air flow mechanism, let's observe hypothetically on a metal-on-metal sealing. Each metal plane has its own surface profile with peaks, valleys and defects where air can flow in and find its way out. The probability of perfect sealing – when one plan's peaks are pressed directly on the other plan's valleys – aspires to zero.Practically, the metal-metal interface always consist paths that the air can use for its escaping. We refer to that situation as â€Å"use of built in paths†. The reason behind the superiority of rebuttal sealing over the metal-metal one is he elasticity and compliance of the rubber. When pressed on the metal surface, the rubber's loose strands and even some of the Junctions and regular strands on the rubber surface fill the valleys of the metal. Since the strands are thin compared to the valley, th ey penetrate the â€Å"built in paths† and force (consider a thick bush in a flowing river).This is the idea behind â€Å"labyrinth† seal -forcing the air to flow in a complicated path in order to reduce pressure leakage. The magnitude of a rubber monomer is about 5 LIVED sail Piston Secondary Valve Figure 2 – the actual setup 2. 3 Preliminary results and Conclusions (t) profile was recorded for different initial pressure differences and rubber deformations. The parameters range is: pop=l [ATM] to 5[ATM], to -0. 2. Preliminary results showed that p(t) graphs were different considerably one form the other for the same initial conditions.It was concluded that the experiment is very sensitive to the rubber gaskets different surface profile over the different specimens. See fig. 4 for details. On the other hand, when repeating the experiment with the same gasket, as long as the experiment is not too long so the rubber won't behave differently due to service, we get similar graphs (fig. 3). Discussion 3. 1 Air Flow The proposed mechanically model of leakage is based on three phases. Phase I includes placing the rubber gasket and deforming it to the set value h. The process is described in figure 5. The polymer macrostructure is composed of strands and Junctions.According to untangled mechanical models [5], the Junctions (at least, the experiment #2,#7 experiment #2 pressure[ATM] 4 3. 5 3 2. 5 2 Figure 3 – 4 experiments with ZEE%. The graphs are similar, with maximum of 0. 2[ATM] pressure difference. The difference is due to inability to reconstruct the same initial conditions and due to service effects. Oho 1 500 2000 time[sec] Figure 4 – pressure profiles in experiments #2, #7. pop?4. 1 EX-O. 148. -3- Aluminum Figure 5 – gasket compression process angstrom, and the strands are generally shorter than the average polymer length, each strand is formed maximum overall length about 5 micron.See [6] for more information about st rands length. However, this is not the end of the story. Recall that the rubber strands are rather flexible, given an energetic air Jet it might deform the strands, move them aside, and create a much more convenient path. Where it is practically impossible in metallic sealing, when rubber-metal is noninsured the air can create its own path and not use the â€Å"built in† paths by default. Of course, the strands are like springs – moving them aside require a transform of the air kinetic energy to potential spring energy.So we stay with this trade-off: creating convenient path where the friction loss is minimal, or maybe use the built in paths with significant friction loss but save the energy of the path creation. The answer will be given by the minimum energy principle. The reasonable assumption is when the pressure p is great, the air is energetic and prefer create a convenient path. As long as p decreases, the path becomes more and more curvy. When p is too small, we cannot talk about paths anymore since the air kinetic energy isn't high enough. Alternately, the air molecules start percolate on their way out (still in the interface, not in the bulk).Our model won't deal with that region. Only the regions with flow paths are in our interest. The latter discussion was proved qualitatively. An experiment assuring its results is in its design stages. Phase II of the experiment is the pressure buildup. We open the main valve, letting air to flow from the supply line to the cylinder. The supply line erasure is controlled and thus raising the pressure inside the cylinder. At this phase, air is pumped in and leaks out at the same time but the influx rate is much greater then the leakage rate.When the level of pressure reaches the desired one, and stables, the secondary valve is closed and phase Ill is being executed. In phase Ill, the air flows out through the two planes described in phase I in a manner described above. 3. 2 Rubber Gasket Behavior cyli nder, and that pressure acts on the already deformed gasket as it wants to expend it. Due to the normal forces, a friction force (FRR) avoiding the gasket from expending. Beneath is a figure showing the process form the rubber point of view using forces diagram on a vertical section.Let's assume a standard friction model. After a certain level of pressure is achieved, the friction force FRR reaches its maximum static magnitude, which means that the rubber is entering the dynamic friction stage. While the pressure continue to increase, the rubber starts increasing its average radius, so the radii difference – outer against inner – and the height are decreasing due to incompressibility. Notice that h does not change – the piston is fixed – but the expansion decreases the ignited of the friction force even more. When maximum p is achieved, phase Ill starts.The pressure begins to drop and the rubber enters the static fiction level again. The friction force co ntinues its decrease until finally it changes its direction and grows back to the dynamical level. Afterwards, the rubber begins to decrease its radius -4- until the maximum-static-level friction force is enough to hold the rubber gasket in place. It is more than possible that before releasing the piston, the final average radius is different than the initial. There is also the possibility of small p and a strong enough friction force that succeed in keeping the gasket in place all over the experiment phases.Important conclusion is that the volume which the air fills remains constant at the beginning and at the end of the experiment. That is, the contraction is happening at the middle of the experiment (if present). In order to check the validity of the previous speculative argument, a videotaped experiment was taken. There, one we can see how the rubber expends and contracts with the pressure (in [ATM] at the background), where the movement is in microscope (it was videotaped using a regular camera. The movement is absolutely seen to the naked eye).