An Introduction to Plastic Gears :: essays papers

An Introduction to Plastic Gears As an employee of a world-class plastic gear manufacturer for many years, I see how this is an undeniably growing part of the gear industry. I hope to briefly describe how something seemingly simple as a plastic gear requires the culmination of many very state-of-the-art processes. Within one word I’ll say that at every level precision is required. Initially, a gear engineer must design a gear that meets the design intent while remaining cognizant of all variables that result from using materials such as plastic. This engineer must design a gear electrode that will actually determine the form of the gear. This electrode is then burned into the mold cavity using a method commonly referred to as EDM or electrical discharge machining. It is essential that the gear electrode be cut identical to the finished gear tooth form. Some compensation is normally made for the shrinkage of plastic as well as the overburn that occurs during the EDM process. The gear engineer normally will alter the gear tooth geometry to relieve stress and strengthen the gear tooth form. This alteration is normally done at the base or root of the gear tooth and at the tip or peak of the tooth. Next, a mold maker then will evaluate what the expected life of the gear program will be so that he can build a mold that is robust and capable producing the many millions of parts with the highest of accuracy. He will ensure that the plastic that will be entering the mold will travel along balanced pathway or runner system that will allow for consistent fill into each mold cavity. His tool for evaluating this flow is done through a computer model commonly referred to as mold flow analysis. He must be capable of understanding what makes a good mold as well as a good gear. Once the mold is completed it is then set into an injection-molding machine. It is important in the precision gear molding industry that the molding unit has a highly controlled system in place to monitor the molding process. It is equally important during this process that there is a means by which all peripheral variables can be controlled. This is done utilizing a central processor, which will maintain balance on all settings for every parameter. Transducers relay all of their information into a central processor that will monitor and maintain this consistent process.

Compare and Contrast the Ways in Which the ‘Natural Environment’ Essay

The natural environment is a key influence in cosmogonic and cosmologic conceptions of human beings as persons among Australian Aboriginal people and to a lesser extent Balinese people. Meyers (1987[1973]) asserts that personhood is socially generated and defined by culture; the conception of personhood in a society is intrinsic to the very nature and structure of human society and social behaviour universally. The environment in which a society is found has particular influence over the social behaviour, structure and interactions of its inhabitants, and impacts on daily life and ritual observances. The Australian Aboriginal understanding of human beings as persons is an amalgamation of cosmogonic and cosmologic concepts of the Dreaming and a â€Å"system of totemism† which govern the ‘social person’ and fluctuate according to variation in natural environment (Peterson, 1972:12). Conversely Balinese understanding of human beings as persons is a â€Å"depersonalizing† system, based on cosmologic concepts of cycles of reincarnation that influence naming orders, status, ceremony and religion, social structure, heavily constructed with a separation of human and animal and a domestication of the natural environment (Forge 1980, Geertz 1973). The differences arising between Australian Aboriginal and Balinese concepts of personhood are derived from variations in ecology, social organization and culture that stem from the distinctive diversity of their respective natural environments and cosmogonic and cosmologic conceptions. Australian Aboriginal understanding of human beings as persons is closely linked to an intimate social and cultural relationship with their natural environment, which stems from cosmogonic and cosmologic concepts of the Dreaming. Bodley (2000:31) explains the Dreaming answers basic existential, meaning of life questions and offers a way of life doctrine prescribing basic social categories and ritual activities, ascribing cultural meaning to the natural environment. The cosmogonic aspects of the Dreaming involve supernatural beings forming the land through their actions and wanderings, leaving trails then re-entering the earth to slumber. (Strehlow, 1978). Australian Aboriginal concepts of personhood stem from the cosmogonic notion that the person is a reincarnation of one of these supernatural ancestors or ancestresses. Strehlow (1978:20) asserts that according to reincarnation beliefs, some part of the ‘life’ left by the ancestor on their trail, could enter into the body of a human mother who crossed these trails, and could take on new life as her human infant. Strehlow exemplifies the Aranda doctrine of conception, and the possession of two souls by every human being, differing from animals in acquiring a second ‘life’ of the ancestor spirit that is immortal (1978:21). Thus Australian Aboriginal notions of personhood are linked inexplicably to the natural environment through place of conception and the identification with an ancestral place of the right patrilineal moiety where the second soul entered and made them a true person. This identification is in the form of a totem, giving the individual certain rights and ritual observances within that natural environment (Peterson 1972:16). Peterson (1972:12) describes the Australian Aboriginal social organisation, and thus concept of personhood, as derived from a â€Å"system of totemism†. The Australian Aboriginal totemic system is based upon cosmologic notions of the Dreaming, and is explicitly linked with conception beliefs. Strehlow asserts that the most important ramifications of conception and reincarnation beliefs of Australian Aboriginals were the totemic relationships that they established and the links they forge between the mortal man and the changeless forces of eternity (1978:24). Totem relations dictate social organisation and kinship, Bodley states that members of a â€Å"band† may be referred to as ‘people of’, whereas individuals may have an affiliation and rights within several countries (2000:37). Conception away from the father’s estate in no way weakens the child’s links and rights in the father’s clan, but rather bestows additional rights and privileges on the estate that he was conceived (Peterson 1972:17). Conception is in terms of â€Å"the water† or spiritual well you come from, a clan estate is the â€Å"bone country†, indicating that the link with the father and patrilineal natural environment has a physical expression in the bones of a person’s body (Peterson 1972:17). Conception and reincarnation beliefs ensure that Central Australian Aboriginal communities were constituted of peoples that belonged o a variety of totems and lands, and that each individual had a personal totem that determined the nature of his rights and duties, and ultimately the understanding of his personhood (Strehlow 1978:26). In contrast to the close identification of Australian Aboriginals with their natural environment, Forge (1980) asserts the Baline se view nature as â€Å"fundamentally fanged and hairy†. This notion is replicated in traditional artwork as consistent representation of animals with prominent teeth arranged in a way that is not found in the natural environment. Forge (1980:6) suggests this arrangement of teeth is part of Balinese culture, highlighting the Balinese aversion to animalism and a desire to emphasize the distinction between animalism and humanity. Furthermore ritual observance of tooth-filing and blackening, of the front six teeth symbolic of undesirable passions, between puberty and marriage is explicitly said to diminish the similarity between man and animal and produce a â€Å"real human† (Forge 1980:239). Forge (1980:7) asserts â€Å"in Bali nature does not produce mankind, even in physical form; the body needs cultural modification to reach true humanity†. Thus the Balinese have an almost tooth-idiom, Forge (1980:12) suggest the Balinese have culturally created a contrast between modified human teeth and the teeth of animal and supernatural beings that symbolize uncontrolled power. Additionally, the Balinese view the forest as an intermediate zone between the world of men, culture and cultivation, and the world of gods, and inhabitants of the forest, good and bad are seen as aspects of humanity with which a person must come to terms with in order to be in control and realize personhood (Forge 1980:15). Consequently the Balinese view their natural environment as power needing to be remade in a cultural and human form through domestication; through control the Balinese human becomes a person. The Balinese understanding of persons as human beings in social organization is derived from a complex system of naming orders that are essentially depersonalizing (Geertz 1973). Geertz (1973:376) states that in Balinese cosmology the stages in human life are not conceived in terms of the process of aging biologically, to which bares little importance culturally, but of social regenesis. Rather than place identifying names or personal names, birth order names and more so teknonyms, e. g. ‘father-of’, are the primary means of identification in Balinese society, furthering Geertz assertion of a depersonalizing social order where enormous value is placed a person’s procreation (1973). Balinese life is not only irregularly punctuated by frequent holidays, but by frequent temple celebrations which involve only those who are birth members of the temple (Geertz 1973:395). Most individuals belong to half a dozen temples or more, thus Balinese life is culturally cross-cutting, dominated by ritual observances and auspicious calendar days (Geertz 1973:396). In terms of the significance of observances of Balinese calendars to the natural environment, the lunar-solar calendar is useful in agricultural contexts so that planting and harvesting are regulated and control of the natural environment is actualized (Geertz 1973:398). Temples have symbolic connection with agriculture and fertility and celebrate the reception of gods according to the calendar (Geertz 1973:398). The Balinese conception of personhood is influenced by shared obligations at a given temple, common residence in hamlets or bandjar and ownership of rice land in an irrigation society (Geertz 1959). â€Å"Bali is a land of temples†, and membership is cross-cutting of these groups in Balinese society (Geertz 1959:994). Temple worship is significant in the concept of personhood and also for ritual observance of fertility and agricultural or natural environment. The irrigation society or subak regulates all matters to do with the cultivation of wet rice, and members are organized according to location to a single water source (Geertz 1959:995). The organization of the Balinese irrigation system within their natural environment provides the context within which Balinese agricultural activities are organized to control and domesticate the natural environment. The natural environment influences Australian Aboriginal and Balinese understandings of personhood in varied ways, as a product of varying cosmogonic and cosmologic beliefs and practices. As Strehlow (1978) asserts, Australian Aboriginal cosmogony and cosmology of their natural environment significantly influences notions of personhood through conception and reincarnation beliefs and ancestral spirits. Similarly Geertz (1973) discusses the impact of reincarnation beliefs on the cosmologic understanding of humans as persons as depersonalizing contemporaries among he Balinese. However, among the Balinese naming orders are transcendent of place, whereas naming of Aboriginal Australians is distinctly tied to place and natural environment in totemic systems. It is apparent that Australian Aboriginal cosmogony and cosmology of the Dreaming and the conception of personhood in society is tied intrinsically to the natural environment. Conversely, the Balinese social organization is largely separate from a preoccupation with the natural environment, and is focused on control and an emphasis on the difference between animalism and humanity. Such divergent reactions to the natural environment are a direct product of variations in ecological surrounds; the totemic identification with the land of the Australian Aboriginals is due to an inherent need to harmonize with the harsh climate. Balinese assertions of domestication and strict boundaries between human and animal are a product of fear of the dangers of the forest. In conclusion, there is no single universal conception of personhood, and the natural environment impacts upon the reactionary organization of a society to either live with or control through domestication, Australian Aboriginal and Balinese respectively. The environment in which a society is found has particular influence over the social behaviour, structure and interactions of its inhabitants, and impacts on daily life and ritual observances, as seen in both the Australian Aboriginal and Balinese people. The different cultural constructions of personhood around the globe cannot be interpreted in terms of narratives of the progressive emergence, either of rationality or of individuality, in terms of European progression, but rather as singular expressions within varying universal social behaviour and organization.

Megger’s Article Response Essay

Betty J. Meggers article, Environmental Limitation on the Development of Culture, examines how environmental habitats directly affect and influence culture. Meggers discusses the differing environmental types and its resulting effect on the people and their cultural development. Her theoretical framework is grounded on the idea that the relationship between culture and its environment is not only based in terms of subsistence (802), but largely to a culture’s experience with diffusion (822). Diffusion can best be defined as a process in which a cultural trait, idea, or behavior is spread from one society to another. While she does believe that the relative strength or weakness of an environment to provide a suitable means for food production affects the adaptation and advancement of a culture, she also believes that cultural diffusion plays a vital role as well. According to Meggers, the general belief is that environmental potentiality is the sole conditioner of cultural development (801). The span of environmental habitats into classified into 4 environmental types, ranging from Type 1 environments, which have the least agricultural potential, to Type 4 environments, which have unlimited agricultural potential. Meggers does generally seem to agree that the environmental type can set limitations on the level of development a culture is able to obtain (816). Because Type 1 environments have the least agricultural potential, tribes must subsist mainly by hunting, fishing, and gathering. Cultures that live in Type 1 environments are relatively small in population size and tend to lead more of a nomadic lifestyle, a necessary part of life because they must continually follow their food source. As a result, their existence is noticeably simplistic because their primary focus is on satisfying only their very basic needs such as shelter and food. This type of environment results in a culture where social organization and technology is very limited in scope. The nomadic lifestyle necessitates that tribes remain relatively small, therefore making the single family the basic social unit. Additionally, technology remains limited to only the most essential tools and utensils due to the limited resources available. According to Meggers, Type 1 and Type 2 environments seem to prohibit cultural advancement because of the limitations imposed on a culture by the environment and the general lack of a suitable source of diffusion. Conversely, Type 4 environments have unlimited agricultural potential because they possess all the ideal conditions necessary for sustaining agriculture. Meggers calls Type 4 environments the â€Å"cradles of civilization† (804) because of their ability to develop and implement the technology necessary to sustain an agriculturally based lifestyle. Type 4 environments are typified by their complex social organization and cultural advancements. Meggers states that Type 4 civilizations are elaborate due to their intensive production of food and the necessary means of distribution. However, Meggers also believes that success of Type 3 and Type 4 environments to advance culturally is also heavily influenced by diffusion across cultures, or a cultures relative exposure and adoption of differing cultural norms, beliefs, and behaviors.

The Killing Of Mudeye Essays - Goldfinger, Free Essays, Term Papers

The Killing Of Mudeye Essays - Goldfinger, Free Essays, Term Papers The Killing Of Mudeye READING JOURNAL This novel is about the killing of a small adolescent troubled boy whom was labelled Mudeye because he was a real victim. I think that Ned is guilty because he has made Linton Begg even weaker because he refused to hand out a friendship to Mudeye. He did this because he was to good to be his friend and he didnt want to be payed out for hanging around with someone so low and not liked. Ned, Mudeye and Goldfinger have many things in common that include the desire to be popular, the lack of happiness, they all are smart, they are all rich, Goldfinger and Mudeye both have strengths such as Mudeye being smart at writing and Goldfinger needing to get a better mark. They are all good at their work and they all have problems with insecurity. I think Ned could have saved Linton Begg because he could have become his friend and helped him to be more secure. He also could have stopped people from hurting him mentally as well. Ned didnt help Linton because had his own insecurities and was too selfish to help. The killing of Mudeye is like a game in life and death where people are rewarded or punished. This is because there is a leader of the game, Goldfinger, and he rewards and punishes people. Goldfinger especially does this to Mudeye. He punishes him to excess. When he stole Mudeyes glasses he punished Mudeye by making him beg. He also rewarded him into their group by making him have a joint and getting him sick. The punishment to Mudeye was a reward to Goldfinger. He loved to see people weaker than him. He gained strength from watching them suffer. The novel is largely about jealousy. It is about Ned being jealous of Goldfinger because he is so good and has the best looking girl in the school and Goldfinger is followed by everyone. There is even jealousy of Mudeye from Goldfinger because Mudeye is such a good writer and Goldfinger gets jealous; he makes Mudeye do his work so he can get a better mark. Goldfinger is also jealous because Mudeye is liked more by one of the teachers then Go ldfinger is and so Goldfinger tries to get back at that teacher. He wants to punish them. When Linton Begg writes, I am only born to suffer he is really speaking the truth because his whole life was about suffering and being picked on and not liked by anyone. His life was a total suffering right up to where he hung himself. He had a problem, though it was Schizophrenia, where he heard voices and was always depressed. He was like this because of his parents as well because they didnt like him and didnt care about him. They didnt want him in their lives. Mudeye is killed by his mental disorder but also his insecurity. He really did get the mental disorder because he was so insecure and nobody wanted to know him not even his mother and father. He was alone and marginalised continually by everyone. The Killing of Mudeye is about reconciliation with the past and Ned does achieve it very well because he is really disturbed when he relives his whole school life. He decides to face where the killing of Mudeye is done and it makes him feel a lot better. His son had helped him to because he found a friend like Mudeye and didnt care and it made his father feel better. Linton Begg dies and a lot of the people in the book did get what they want even Ned who faces all his problems real well. Linton Begg also ends up happy because all his pain is gone and he is finally free. Bibliography the killing of Mudeye (book)

Guide to Past Simple and Past Continuous Verb Tenses

Guide to Past Simple and Past Continuous Verb Tenses There are two principal past tenses used to make general statements about the past: The past simple and the past continuous. The two tenses are quite different. Use the past simple to talk about an event which happened at some point in time in the past. Tom flew to Chicago last week.Peter visited his friends in Florida two months ago. If you are a teacher, use this guide on how to teach the past simple tense for more help. The past continuous is usually used to refer to events happening at the same time that something important happened in the past. They were doing their homework when she arrived.Jack was studying while Dave was cooking dinner. The past continuous is also used to express what was happening at a precise moment in the past. I was attending a lecture at 2.30 yesterday afternoon.Alice was reading a book at six yesterday evening. If you are a teacher, use this guide on how to teach the past continuous tense for more help. Past Simple Structure Positive Subject Verb ed OR Irregular Past Form Objects I, You, He, She, We, They played golf yesterday afternoon.I, You, He, She, We, They went lunch at noon. Negative Subject did not (didnt) Verb Objects I, You, He, She, We, They didnt go on vacation last summer. Subject did not (doesnt) Verb Objects Questions (Why, What, etc.) did Subject Verb Objects? Did I, you, we, they attend the meeting last week? Past Continuous Structure Positive Subject conjugate the helping verb be verb -ing. I was, You were, He was, She was, We were, You were, They were watching TV when I arrived. Negative Subject conjugate the helping verb be not verb -ing. I wasnt, You werent, He wasnt, She wasnt, We werent, You werent, They werent working when he came into the room. Questions Question word conjugate the helping verb be subject verb -ing What were you, they doing at seven oclock?What was I, he, she doing at seven oclock? More Guides for Past Simple These guides were prepared especially for beginners and include dialogues and a short quiz. Past simple with the verb to be for beginnersPast simple with regular and irregular verbs for beginners Teach a Lesson About the Past Simple and Past Continuous Here are lessons on the site which focus on the past simple or past continuous and their use with other tenses.Then - Now - integration lesson for upper-level students.Time Expressions - past simple and present perfect compared and contrasted.Integrating Past Continuous - integrating past continuous into writing.Guilty! - communication lesson using a variety of past tenses. Activities With the Past Simple and Past Continuous Some activities that will help you practice: What Were You Doing? - Use of the past continuous in combination with the past simple.A Holiday in Italy - Describing a past holiday.Time Expressions and Tenses.

The foundational topic of economics, demand and supply Term Paper

The foundational topic of economics, demand and supply - Term Paper Example This paper also looks at other topics related to demand and supply in great details like Elasticities, Equilibrium situations and shifts in demand and supply. It should be remembered that purpose of this paper is purely academic and most of the research done is secondary in nature. The market can be defined as an institution or mechanism that brings together buyers and sellers of a particular goods, services or resources in order to determine a price and set equilibrium at the point where the plans of buyer meet the plans of the sellers. From the above point, it is very clear that market equilibrium occurs at price or a point where the buyers are willing to buy a particular quantity of goods at a going market price and similarly sellers are willing to sell the same quantity of the goods at the same price. In simple words, market equilibrium is related to demand and supply. In order to understand the equilibrium situation in detail, let’s first look at the meaning of the terms, demand and supply.

Setting up a business in China Essay Example | Topics and Well Written Essays - 2500 words

Setting up a business in China - Essay Example This research will begin with the Chinese business culture. Chinese people perform a different form of business and culture as compared to the rest of the world especially the West. However, with the uniqueness of the Chinese history and background, China always has a special culture of business and etiquette. A simple business culture can mess a working relationship that was doing well. Conflict of culture between Chinese and another culture may cut short a working business relationship. Chinese businesses are usually based on being referred by another business associate; could be in the same business or in another business field. However, a strong recommendation from such an associate is required to win favour of clients and get good deals.Chinese business starts on a social plate and continues along the same line unless something happens that may break relationship between parties involved leading to business termination. Unlike Western culture where business is profession based, Chinese business is more of a social affair than a professional one. This is essential to help attract more clients and win hearts of many people in business. It helps maintain one’s clients in business socially rather than professionally and this increases business returns. The more one goes social in business in China, the higher the returns. Getting personal in business and sharing one’s personal life acts as an incentive to business partners. Business partners usually take this as getting close to them and this may be their interest even before they do their business with the party involved. It is therefore imperative to get personal and avoid too much of being professional as this will guarantee high returns within a short period of business. Spending time in sharing personal life in business attracts business associates from China. Personal life may include political views, hobbies, and family life among others. Protocol and priority are vital in business in Chin a. Protocol and priority comes in when dealing with people of different ranks. Recognition is of essence to show these individuals that one recognizes their rank. Address people with their correct designation, for example, Director, Doctor, Professor, and Chairman. This will make the parties see that their rank in whatever field they are in is highly recognized even in business. Giving business cards during business meetings indicates that one is serious in doing business. A business card should face the recipient. Such a card should have one side translated to make it easy for the Chinese party to understand what one is selling to them or buying from them. It is important to mention one’s company and the rank one holds before business gets underway. Business in China pays much attention to respect. Parties are supposed to display respect to each other according to rank. It may not be easy to excel in business in China without understanding that respect is tantamount to busin ess success. It is necessary to establish contact with a client one is dealing with so as to get as much referrals as possible from that client as business progresses. One should act as an interpreter to himself to make it easy to identify with Chinese as they like business where they understand what they are dealing in. It is vital to explain legal aspects of the business one is handling to be sure of the legal implications when doing any kind of