• 한국정밀공학회지
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• 제31권3호
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• pp.189-197
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• 2014

Diffractive optical elements (DOEs) - in general a complex pattern of micro- and nano-scale structures - can modulate and transform light in a predetermined way. Their importance is being increased nowadays because they can be designed to handle a number of simultaneous tasks. In view point of machining DOEs, it is a big challenge to fabricate micro- and nano-scale structures on a free-form surfaces. In this paper, the state-of-the-art of the ultra-precision machine tools is reviewed. Also some technical issues which determine the machine tool accuracy are discussed.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2005년도 춘계종합학술대회
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• pp.256-260
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• 2005

교통관제시스템을 구축하려면 이동체들의 실시간 위치데이터를 제공할 수 있는 GPS-MDT(Mobile Data Terminal : 이동데이터단말기)와 이동체들의 위치데이터를 수신하여 GIS 상에 위치를 표시할 수 있는 교통관제용 S/W가 필요하다. 이동체의 위치데이터를 VHF 송수신기를 이용하여 전송하기 위해서는 GPS 정보를 취득하고 데이터를 전송하기 위한 모뎀이 필요하며, 관제실에는 GIS기반 이동체들의 교통상황을 모니터링하는 프로그램을 개발하여야 한다. 이동체들과 관제실 간에서 자동으로 이동체의 ID를 포함하여 GPS의 시각 및 위치정보를 지속적으로 전송하여 취득할 수 있는 통신프로토콜도 연구되어야 한다. 본 논문에서는 음성과 문자정보를 동시에 전송할 수 있는 VHF 송수신기용 모뎀과 GIS-tool을 이용한 관제용 S/W에 대하여 연구하였다.

• 한국가구학회지
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• 제20권5호
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• pp.440-456
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• 2009

Because PBD was started as a design tool for steel construction and concrete construction, it was able to applied to the post and beam method of wooden building constructions. But, it may not suitable to light frame wooden construction that is becoming popular in domestic construction market due to the economical efficiency and the constructive simplification. Owing to the share effects between member and sheathing material or among structural members, light frame wooden construction is different from post and beam construction that use a single structural member. Therefore, consideration on the system analysis and system design are urgently needed to use in actual life and inspect the reliability of structures from the system view. With this in mind, code conversion from ASD to PBD that is pressing issue in domestic wooden building construction was studied, also various countries status about PBD were considered and then approaching methods on the system reliability were referred. Finally, several considerations for the development of PBD were explored. PBD should be considered as, not only a new structural design process that select sizes of structural member, but a industrial tool that can lead a development of more reliable wood products. A strongest point of PBD is independent of various construction materials and construction types.

• 한국직업건강간호학회지
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• 제28권1호
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• pp.21-35
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• 2019

Purpose: The purpose of this study is to propose directions for the development of Occupational Health Nursing Intervention by identifying the current status and quality of Occupational Health Nursing Intervention Research in domestic industries. Methods: Between 2000 and August of 2018, total of 1,181 Occupational Health Nursing related published references were searched using 4 domestic databases, and of the total, 29 final theses that suited the requirements were analysed In this research, the quality assessment of literature that were selected as suitable was conducted using a tool for assessing the biasing risk of non-randomized studies, RoBANS(Risk of Biasing Assessment Tool for Non-randomized Study). Results: For all research, nonequivalent control group pre-posttest design was the most used as quasi-experimental designs. The effectiveness of intervention was found both in terms of physical and psychological aspects, and the result of the risk of biasing assessment showed a high risk levels in both "confounding variables" and "detection bias". Conclusion: Occupational Health Nursing Intervention have been steadily making improvements in terms of both quality and quantity, and as for more effective intervention developments that improves the physical and mental health of the workers, supplementation in strict research design and in ethical aspects deems necessary.

• 한국산업정보학회논문지
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• 제26권1호
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• pp.11-19
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• 2021

5G 네트워크의 등장으로 초저지연 서비스에 대한 요구가 제기되었다. 그러나, 사용자로부터 지리적으로 멀리 위치한 클라우드 센터의 컴퓨팅 서비스로는 이러한 요구를 만족할 수 없다. 이러한 요구에 따라 클라우드 컴퓨팅 서비스를 사용자 근처에 위치한 기지국 혹은 교환국에 전진 배치하여 저지연 서비스를 제공하는 Multi-access Edge Computing (MEC) 기술이 주목받고 있다. 우리는 구글의 Kubernetes를 기반으로 MEC를 위한 클라우드 컴퓨팅 환경을 구축하였다. 이때, 안정적인 동작 확인을 위해 많은 수의 컨테이너가 발생시키는 로드에 강건하게 견딜 수 있는지 실험적으로 확인할 필요가 있다. 이를 위하여 우리는 Kubernetes 환경에서 다양한 컨테이너를 생성하여 네트워크 자원과 컴퓨팅 자원의 안정도를 측정할 수 있는 도구를 개발하였다.

• 동서간호학연구지
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• 제5권1호
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• pp.36-49
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• 2000

This study aims to provide the fundamental data for substantial nursing intervention in the elderly through a comparative appreciation on family support, self-esteem, and health status between the institutionalized elderly people and the home-staying ones. The subjects of this study are the institutionalized 108 elderly people of E and C Public Homes and the home-staying 109 elderly ones of O-Nho In Jeong(a kind of public recreational facilities for the aged) over the age of 65. The instruments for this research are based upon the tool(11 items, 5 points for each) for measuring family support developed by Choi, Young Hee(1984), a self-esteem scale done by Rosenberg (1965), the tools(20 items) for checking the health status of the elderly done by Lee, Young-Ja(1989). The sampling for this study has been carried on from July, 2000 until November, 2000. Questionnaire data were drawn up by personal interviews. The analyses of collected data are based on general characteristics calculated at the rate of 100 percentage to the average, t-test, ANOVA(some difference on a level with p<.05 being subsequently confirmed by DMR) for family support, self-esteem and health status, and Pearson Correlation to verify the hypothetical correlation among the subjects' family support, self-esteem and health status. The results of this study are as follows: 1. The difference between two groups in the light of family support, self-esteem and health status. (1) Family support - The rate of the family support that the institutionalized elderly people perceive turned out to be 22.13, that of the home-staying ones 30.99. (2) Self-esteem - The rate of the self-esteem that the former perceives proved to be 25.59, that of the latter 32.28. (3) Health Status - The rate of the health status that the former perceives turned out to be 39.67, that of the latter 51.60. 2. Family support, self-esteem, health status in terms of demographic characteristic (1) Family support - The group of institutionalized elderly people shows a tendency to be chiefly influenced by the death or life of the spouse and the number of the children; the group of the home staying ones to be chiefly influenced by the educational level (2) Self-esteem - The group of institutionalized elderly people shows a tendency to be chiefly influenced by educational level; the group of the home staying ones to be chiefly influenced by the amount of pocket money, the pocket money provider and the family main supporter. (3) Health Status - The group of institutionalized elderly people shows a tendency to be chiefly influenced by educational level; the group of the home staying ones to be chiefly influenced by age, the death or life of spouse, religion, and the educational level. 3. Correlation among family support, self-esteem, and health status The rate of correlation between family support and health status proved to be the highest (r=.549). After came the rate of correlation between health status and self-esteem, which turned out to be(r=.506). The last came the rate of correlation between family support and self-esteem, which proved to be(r=.406). According to this study, there is a conspicuously close correlation among family support, self-esteem, and health status for the elderly. Thus, it would be indispensable to seek out a variety of nursing intervention ways how the elderly could promote family support, self-esteem, and health status.

• 영어어문교육
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• 제12권3호
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• pp.167-186
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• 2006

We live in a global village that requires a language with a genuinely global status as a means of communication. During the twentieth century, English has clearly emerged as the lingua franca owing to both past British political imperialism and the more recent superpower status of the United States. Further contributing to world domination of the English language is the fact that the computer and Internet sprang from the US. Whether you like it or not, you are destined to learn English at least to some extent in order to live in this global village. For the last two decades, one of the most mistaken ideas a number of Korean English teachers have had is that speaking and listening are the primary forms of language, while reading and writing are secondary. In fact, reading is regarded as a skill of much consequence to us since it provides us with access to a huge quantity of information on the Internet, of which at least 80% is written in English. Writing, too, deserves a great deal of attention because we are increasingly called upon to use standard English expressions. As diligent learners of English, we had better not forget the place accorded to language not only as a medium for exchange and constructing information but as a tool for thinking. So we should try to think in English to the point where we have thinking-in-English as a habit, thereby leading to increased familiarity with the language. Such familiarity entails, above all, possessing a command of English.

• 동서간호학연구지
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• 제13권1호
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• pp.40-47
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• 2007

Purpose: This study has been attempted in order to confirm the factors that affect the healthpromotion lifestyle of nurses. Method: Data was collected by questionnaires from 324 nurses at 5 university hospitals located in Seoul. The instrument tools utilized in this study was health-promotion lifestyle, perceived health status, perceived benefits, perceived barriers, self-efficacy, and social support, and validity and reliability of the tool have been verified with literature studies and pre-study examinations. The collected data have been analyzed using SPSS PC 12 program. Result: The factors that affect health-promotion lifestyle of nurses were perceived health status ($\beta$= .320), self-efficacy ($\beta$= .248), social support ($\beta$= .139), perceived benefits ($\beta$= .207), and age ($\beta$= .089), that altogether explained 41.1%. Conclusion: It has been confirmed that th regression equation model of this research may serve as a health- promotion lifestyle prediction factors in nurses.

• Journal of Acupuncture Research
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• 제27권4호
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• pp.203-222
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• 2010

Objectives : There was propose of development of tool for evaluation of Sambokgu-Therapy(三伏灸法) and concept of DongbeongHachi(冬病夏治) for preventing winter disease in the summer. Methods : Details on programs preventing winter disease in the summer such as clear concept, theoretical basis, current status, intervention or available prescriptions and indication/contraindication/caution were prepared through the related journal review, upon which an observational study was devised and done for simulation to find out even a trivial problem and to guarantee the safety beforehand. This study was to understand DongbeongHachi(冬病夏治), to find out the diseases related to DongbeongHachi(冬病夏治) and to develop evaluation tools of each diseases. In addition we meaned to understand Sambokgu-Therapy(三伏灸法) sorts and necessity and to discover side effects or validity related factors. Results : We selected air-conditioningitis, asthma, chronic bronchitis, common cold and allergic rhinitis as DongbeongHachi(冬病夏治) related diseases. And some questionnaires are developed, which they could show the general characteristics and each diseases specifics Discussions : I expects to enhance status of the oriental medicines as preventive medicine, if we continue to supplement effectiveness and safeties about Sambokgu-Therapy(三伏灸法) through clinical reserches based on this study.

• 대한간호학회지
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• 제36권6호
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• pp.1042-1054
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• 2006

Purpose: Previous evaluation studies of the visiting nursing program explained an average change of the participants' health status, without considering socio-ecological characteristics and their impacts. However, these factors must affect individual health problems and lifestyles. For effective and appropriate community based programs, the Geographical Information System(GIS) can be utilized. GIS is a computer-based tool for mapping and analyzing things that happen on earth, and integrates statistical analysis with unique visualization. The purpose of this study was to evaluate visiting nursing care and to advocate the usefulness of planning and evaluating visiting nursing programs using Exploratory Spatial Data Analysis(ESDA) with GIS technology. Methods: One hundred eighty-four elderly participants with cerebrovascular risk factors who lived in 13 areas of one community received visiting nursing care. The data analyzed characteristics of pre-post change and autocorrelation by ESDA using GIS technology. Results: Visiting nursing care showed an improvement in the participants' lifestyle habits, and family management ability and stress level, while the improvements were different depending on the regions. The change of family management ability and stress level correlated with neighborhoods (Morgan's I=0.1841, 0.1675). Conclusions: Community health providers need to consider the individual participant's health status as well as socio-ecological factors. Analysis using GIS technology will contribute to the effective monitoring, evaluation and design of a visiting nursing program.