Proceedings of the Korean Society of Precision Engineering Conference
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1997.10a
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pp.706-709
/
1997
Extruders are the heart of the polymer processing industry. The single most important mechanical element of a screw extruder is the screw. The proper design of the geometriy of the extruder screw is of crucial importance to the proper functioning of the extruder. If material transport instabilities occur as a result of improper screw geometry, even the most sophisticated computerized control system cannot solve the problem. For this purpose, characteristics design on helix angle of the extruder screw. This paper presents strength of the screw flight, optimum helix angle versus dimensionless down channel pressure gradient, optimum helix angle versus the power law index in simultaneous optimization, volumetric efficiency versus helix angle at various number of flights and power consumption versus helix angle in the barrel of screw extruder.
The Title 19 of the U.S. Code covers custom duties and is the heart of international trade regulation in the U.S.. Among the provisions in Title 19, is Chapter 4, the Tariff Act of 1930. Under U.S. Antidumping duty law, dumping occurs when `subject merchandise' is imported into the U.S. and sold at less than `fair value.' The administration of U.S. Antidumping duty law is shared between the Department of Commerce('Commerce') and International Trade Commission('USITC'). The U.S. Court of International Trade ("CIT") and the U.S. Court of Appeals for the Federal Circuit ("CAFC") decided the review of antidumping duty ("AD") determinations and administrative review results issued by the Commerce and the USITC, as well as the review of countervailing duty ("CVD") decisions. In Eurodif S.A. v. United States, the CAFC considered the important issue of whether the antidumping and countervailing duty laws apply to sales and purchases of services--in this case, the sale or purchase of enrichment services. Although the federal courts had considered the issue of whether a sale of enrichment services constitutes a sale of goods, the issue had never arisen in the context of the antidumping and countervailing duty laws. Also this is the first time that the Supreme Court has ever agreed to consider an antidumping case.
In the presidential new-year address in January 2, 2009, the President declared that 17 kinds of new driving force of growth that could create high-added value be selected to step up job creation and an increase in national wealth. The Ministry of Strategy & Finance announced plans for the 17 kinds of new driving force of growth after the presidential address. Specifically, that ministry announced an ambitious plan to select health care service named 'Global Health Care' as one of the five service industries that could create high-added value in a move to provide jobs to approximately 7,000 people and produce pervasive economic effects coming up to a trillion and 10 billion won. To attain the goal, several action plans were mapped out to globalize domestic medical institutions, to rearrange the relevant law and system for the purposes of raising awareness of domestic medical institutions among foreign patients and improving their accessibility and post-satisfaction level, and to lure lots of foreign patients through financial assistance. At the same time, the government announced plans to lure severe patients such as those in want of surgery or organ transplant, cancer patients or patients with heart diseases to create high-added value on a long-term basis. Thus, the government announced that it planned to formulate such strategies and to enter an agreement with foreign governments to attract plenty of foreign patients. In fact, however, there are little full-scale evaluation of medical tourism though it's been a year since it was introduced, and there are few actual efforts to implement what the government announced, either. According to the results of the evaluation of medical tourism, domestic hospitals are said to undergo little significant changes after the introduction of medical tourism, which shows that they take a dim view of medical tourism instead of having expectations for that. The medical tourism industries in major Asian countries have been dynamized, and there are several factors of their success. First of all, they are successful in creating new market opportunities by incorporating related industries such as medicine, tourism and IT and in developing medical tourism products and differentiated marketing by taking advantage of their competitive edge. They have offered full-fledged assistance to this sector, and another reason is the improved international credibility of their medical service. If our country fails to pinpoint our problems in consideration of the cases of the Asian countries or to provide appropriate financial aid, our country is bound to lag behind them. Given this reality, how to assess medical tourism and what challenges this sector is confronted with are discussed.
Purpose: This study is to explore the essence of those lives who have been living with their mothers- in- law for more than 10years since their marriage by applying Van Manen's hermeneutic phenomenological methodology. It consists of four steps such as concentration on the nature of lived experience, existential research, hermeneutic phenomenological reflection and hermeneutic phenomenological writing. Method: Six middle aged participants who have been living with mothers- in- law in middle size of cities were interviewed and observed with their written consent for one month from 20, April. 2000 to 20 May 2000. To expand insight by analyzing sayings, folks stories, writings, etymology of sigipsalee relevant to it were collected and reviewed. Result: Five essential themes were derived by repeated reviewing the transcription of those interview such as difficulty living with endless heart distress, feeling oppressed, feeling deeply lonely, having a stronger backing as time passes, in turn harmonizing with each other. On the basis of the five essential theme hermeneutic phenomenological writing was done as follow. Participants lived lives filled with uneasy feeling from the newly formed relationship among in laws but especially with mothers- in- law. Participants did their best to be acknowledged found that at a significant moment during family event they would be treated as strangers so that they felt isolated and alone. Mothers in laws played a dominant role in most of family decision even buying their children's clothes. Mother in laws rarely complemented them so that they felt inferior as a person. As time passes. Mothers-in-law and daughters-in-law become adjusted to this lifestyle with each other and assumed a more mature relationship which includes a mutual respect thus better harmony. Participants become to have stronger backing so that they express their opinion to mothers-inlaw. With time both of them are getting old, participants show form of pity to their mothers-in- law. Sometimes participant surprise themselves by noticing a change in their behavior to the same pattern Mothers-in-law have showed them. Conclusion: Although generalizations have limitations, findings resulting from the study will enrich family nursing knowledge and understanding the problems when living with mothers-in- law in the same house. It will give a cleared view of problems faced by middle aged korean women in the Korean patriarchal culture. Researchers have recommended to study experiences of married young adult korean women's generation and the findings compared with this study to show trends and changes.
Kim, Hye-Ryeong;Kim, Jae-Hun;Kim, Euntai;Park, Mignon
Proceedings of the Korean Institute of Intelligent Systems Conference
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2003.09b
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pp.95-98
/
2003
In this paper, an adaptive fuzzy neural control of unknown nonlinear systems based on the rapid learning algorithm is proposed for optimal parameterization. We combine the advantages of fuzzy control and neural network techniques to develop an adaptive fuzzy control system for updating nonlinear parameters of controller. The Fuzzy Neural Network(FNN), which is constructed by an equivalent four-layer connectionist network, is able to learn to control a process by updating the membership functions. The free parameters of the AFN controller are adjusted on-line according to the control law and adaptive law for the purpose of controlling the plant track a given trajectory and it's initial values are off-line preprocessing, In order to improve the convergence of the learning process, we propose a rapid learning algorithm which combines the error back-propagation algorithm with Aitken's $\delta$$\^$2/ algorithm. The heart of this approach ls to reduce the computational burden during the FNN learning process and to improve convergence speed. The simulation results for nonlinear plant demonstrate the control effectiveness of the proposed system for optimal parameterization.
A purpose of this study is to understand Platonic View of Health in $\boxDr$Politeia$\boxUl$. Though Plato was not so much a doctor as a philosopher. he had health care of children at heart. He mapped out an ideal type of nation in $\ulcorner$Politeia$\lrcorner$. and he founded a Akademeia in order to realize his dreams. In his course of education. he put emphasis on the problem of health. He extended poetry education for mental health and physical education for physical health. He placed high value on mental health above physical health. and poetry education corresponds to our reading education of today. He perceived that reading had a considerable influence on mental health promotion. According to his assertion, life style, too. had something to do with health condition. To lead a simple. temperate life makes one' health promote, on the other hand, to lead a complicated, intemperate life makes one' health injure. Morever, he approved of a eugenic marriage and the law of jungle. If one is unable to take care of one' health oneself. he would rather die than live. We cannot accept this proposal by general consent. but we cannot be too careful of our health. We can draw out a philosophy of health from Platonic View of Health. For example. the importance of health education. the preference of mental health. the influence of reading education. and responsibility for self-care, etc. We need to establish a philosophy of health scientifically by lasting study of records.
MRO(Maintenance, Repair and Overhaul) industry is growing with the increase in the global aviation market. Especially considering the Chinese aviation market, MRO industry in the Asian region has a growth potential. In the Asian region, Singapore is a country successfully developed MRO industry ahead of South Korea and its heart is the Singapore A*STAR. In this paper, made an analysis of successful cases for Singapore A*STAR and through the aviation technical organization, development of the domestic MRO industry and aviation R&D plan is proposed.
This study was executed to find the applicability of press drying of tree disk by investigating the shrinkage and drying defect and to form appropriate model by comparing the actual moisture content(MC) and internal temperature in respect of drying time with calculated values based computer simulation to which was applied finite difference method. In press drying disk, heating period, constant drying rate period maintained plateau temperature at 100$^{\circ}C$ and falling drying rate period were significantly distinguished. Actual MC and internal temperature were analogous to those calculated at comparing points. Heat transfer model formed by Fourier's law using specific heat of moist wood and conduction coefficient considering fractional volume of each element of wood cell wall, bound water, free water and air showed applicability as basic data to developing heat expansion, shrinkage and drying stress during press drying. Also mass transfer model formed by Fick's diffusion law using water vapor diffusion coefficient showed applicability. Longitudinal shrinkage was developed by pressure of hot press and tangential shrinkage was restrained by hygrothermal recovery. The heart check, surface check and ring failure were occurred differently in species, but V-shaped crack didn't develop.
The purpose of this study was to understand the lived experiences of grandmothers who provide child care services to their grandchildren and employed mothers who utilize child care by grandmothers, with regards to their relationships while exchanging the specific type of intergenerational support. The data for this study came from 42 in-depth, individual interviews with 21 pairs of employed mothers who had at least one child younger than elementary-school age and their mothers or mothers-in-law who had provided child care on a daily basis for their grandchildren. Our phenomenological analysis revealed that the grandmothers felt uncomfortable and overwhelmed when caring for their grandchildren and that they considered this activity to be different from caring for their own children by nature. However, the grandmothers wanted to help their adult children based on their feeling of "boo-mo-ma-eum" (meaning parental heart, i.e., love or care). The employed mothers perceived that they were substantially dependent on the grandmothers by receiving help with child care and housework. Reliance on grandmothers was inevitable and beneficial to these mothers. Dynamic intergenerational living arrangements enabled the dependent relationships. The grandmothers set specific boundaries pertaining to current and future child care so that they would not take on too much responsibility for child care. The mothers used various strategies that contributed to stable child care support from the grandmothers. Providing financial remuneration was an important strategy that had symbolic relational meanings, such as expressing gratitude, rather than financial meanings.
The purpose of this study is to investigate the philosophy behind the Kasaya and its evolution through its clothing material colour structure and sewing. According to the study the results were as follows. 1. The philosophy behind the dressing of the Kasaya can be found in the Therefore wearing the Kasaya symbolizes the Buddhist philosophy of Jat'ailshisongbul ("Simultaneous attaining of Buddhahood for Everyone") 2. The material symbolizes endurance and contentiment by being satisfied with any kind of clothes may they be good or bad. The material of the kasaya comes to signify the harmony among the monk's community 3. The Kasaya uses peculiar colours and the prohibits the use of the five primary and seconary colous. This is to symbolize equality wherein there is no distinction between the noble and the mean. 4. The structure of the Kasaya according the takes the form of a field The Jo is cut lengthwise and divided in nine grades following the Mahayana tradition as written in the This idea reflects the philosophy of salvation of the Pure land thought. The Je has many Jang('long') and fex Dan('short') The meaning of this is that all living beings by self-cultivation can overcome the dirty law of the secular world and follow the way of the sage who have attained their Buddha nature. 5. With respect to the sewing after finishin the sewing the Jang and the Dan are combined together representing the interdependence between the holy person and the common person. Therefore the sewing ssymbolizes the interconnection among all living beings as it arise from the "conditional causation" law. As I have shown above the philosophy behind of the Kasaya developed and was enriched as it cross over China from India to the Original Buddhist thought with which was created in India was added the richness of the Mahayana buddhist thought. As I have shown above the philosophy behind of the Kasaya developed and was enriched as it cross over China from India to the Original Buddhist thought with which was created in India was added the richness of the Nahayana Buddhist thought with which was created in India was added the richness of the Mahayana buddhist thought. As a result the Dasaya came to signify the "field image". The field-image symbolized by the kasaya came to signify the "heart-field" of all living beings. The "heart-field" by its cultivation is field with blessings. Therefore from the sanghati the Nine Grade the evolution and changes in the designs of the kasaya through the different periods of history became clearly an expression how it is possible for anybody to attend the Buddha nature. This changes also show how the Buddhist precepts became reformed from the original Buddhism.ecepts became reformed from the original Buddhism.
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