• 제목/요약/키워드: The First Order Necessary Condition

검색결과 143건 처리시간 0.031초

자연적 요인으로서의 실존공간 및 형태 디자인에 관한 연구-한국의 선과 원축형을 중심으로- (A Study of Existential Space and Shape Design under the Influence of Natural Factors-with Special Reference to Korean Line Axis and Round-)

  • 오인완
    • 한국실내디자인학회논문집
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    • 제6호
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    • pp.38-44
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    • 1995
  • The purpose of this paper is to show that a shape pro-duced by natural factors such as weather, environments, etc., can be introduced into the emotion of a design, and to make a design process by planning a Korean image and characterizing its concept. Human beings, nature, man-made objects, and society have their own functions in an environmental structure. When all their functions are kept in working order, human beings come to discover orderliness out of which they can absorb pleasure. They cannot look into their own inside but they can trace back in their memories a variety of panoramic experiences which have been embed-ded onto their identity during their lifetime interactions with an empirical world. Children first acquire a way of cognition in the space, a comprehensive premise, connecting a specific place and an object of cognition. Such subconsciousness forms sky-lines of mountains, seas, and trees under the sky, and produces axis lines and beehived domes under the influ-ence of natural, cultural, and social factors, forming a folk culture. A subconscious composition of existential space is extended. A subconscious composition of existential space is extended to the areas of environmental design, product design, and fashion design. The development of a concept of place and space as a system is a necessary condition for discovering an existential foothold.

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An Optimal ERP and Antenna HAAT Of 8-VSB for Digital Multimedia Broadcasting

  • Kim, Seon-Mi;Park, Jung-Jin;Choi, Dong-You;Ryu, Kwang-Jin;Choi, Dong-Woo;Park, Chang-Kyun
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2002년도 ITC-CSCC -3
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    • pp.2055-2058
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    • 2002
  • It designs the general description of 8-VSB DTV transmission system will be installed and operated in future on the basis of NTSC TV transmission system in operation now. First of all, it investigates a condition that can maintain optimum received field in case of ground wave broadcasting with analog NTSC and digital 8-VSB DTV. Also it calculates critical value of minimum field strength fur receiving by using field strength calculation method of Longley-Rice. The 8-VSB DTV transmission sets its goal in transmission of data with 19.39Mbps at high speed in order to be available of HDTV in the band of NTSC 6MHz. Accordingly, the optimum of field strength between transmission and receiving points most of all is important problem. So,8-VSB DTV transmission should be enlarged or effective compared with NTSC service coverage. This study is to calculate the transmission power necessary in switching from NTSC VHF to DTV UHF and from NTSC UHF to DTV UHF for maintaining service coverage that NTSC is equal to 8-VSB DTV as a result of calculation.

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일개 군 지역 보건소 공무원의 직무특성과 조직몰입이 직무만족에 미치는 영향: 다른 직렬 공무원과 비교 (The Effects of Job Characteristics and Organizational Commitment on Job Satisfaction of Public Health Center Officials in rural area: Comparison with other job series officials)

  • 전상남
    • 한국학교ㆍ지역보건교육학회지
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    • 제23권2호
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    • pp.1-11
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    • 2022
  • Objectives: The purpose of this study was to identify factors affecting job satisfaction of Public Health Center Officials in rural area. Methods: The 345 survey samples were divided into public health center officials(n=56) and other serial officials(n=289). Data were analyzed with 𝑥2, two sample t-test and regression analysis. Results: First, public health center officials showed a significantly higher job commitment and job satisfaction than other serial civil officials. Second, public health center officials showed the effect of only job commitment on job satisfaction whereas other serial civil officials showed the effect of both job characteristics and job commitment on job satisfaction Conclusion: In order to increase of job satisfaction and provide health education services to the community, it was necessary to improve of motivation and working condition of public health officials.

개발제한구역관리계획의 환경성 강화방안 연구 - 수도권 개발제한구역관리계획을 대상으로 - (A Study on the Environmental Enhancement of the Development Restricted Zone(DRZ) Management Plan)

  • 성현찬;전성우;이은정
    • 한국환경복원기술학회지
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    • 제23권6호
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    • pp.1-14
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    • 2020
  • Under the 「National Land Planning and Utilization Act」, Development Restriction Zones(DRZ) is one of the designated use district where the Minister of Land, Infrastructure and Transport deems it necessary to control urban development in order to prevent urban sprawl and conurbation and ensure a healthy living environment for citizens by conserving the natural environment surrounding metropolitan cities. DRZ was first designated around the Seoul Metropolitan city in 1971, and had been expanded to the 14 metropolitan areas across the country since 1977. The designated areas were accounted for about 5.4% of the total national land and its importance was demonstrated by contributing to control urban sprawl, curbing real estate speculation, and providing green space to citizens. However, DRZ has been repeatedly relaxed its regulations and allowed development under government. As a result, much of the green areas was damaged and several cities were merged and extended(conurbation). In particular, deregulation implemented for the purpose of securing land as part of national projects and local outstanding business(i.g. constructions of national rental housing, industrial complex, and international stadium) have caused continuous environmental damage around the metropolitan cities. In addition, the habitat fragmentation is in serious situation. Thus, the systematic plans for managing DRZ are necessary, since it is concerned that urban environment become deteriorate in the mid- to long-term. This study aims to continuously protect the urban environment from lifting DRZ. Therefore, firstly, we examined the environmental status through analyzing DRZ Management Plan which shall be drawn up by the Special Metropolitan City Mayor, the Metropolitan City Mayor or the Mayer/Do governor having jurisdiction, every five years to collectively manage DRZ. Secondly, we investigated the actual condition in DRZ based on the case study of Management Plan in Metropolitan areas(i.e. Seoul Metropolis, Gyeonggi-do, and Incheon Metropolis). Finally, we suggested the seven feasible improved political plan for managing DRZ.

간호교육과정틀에 관한 소고 -돌봄과학과 보건정책 중심으로- (A Reconsidering on Setting for Philosophy and Curriculum Development in Nursing Education)

  • 김명자
    • 기본간호학회지
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    • 제2권1호
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    • pp.55-66
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    • 1995
  • The goals of nursing education, and the bases for evaluating them depend on the goals of nursing practice. In order to prepare for the coming twenty first century and the meet changing societal demands and health needs, it is necessary to develop a new conceptual framework for future nursing education. While hospitals will still be in significant components of the health care system, will no longer be central focus or dominant influence. Health care services will be more usually delivered at community base. The nursing education required by that new approach must provide for reconsidered about a concept of caring as nursing curriculum. The changes in health care delivery that have occured, now being proposed, for nursing education undergoing its own changes. So the philosophy and objectives of education meed to reconsidering about the caring concept and general nursing. Nurse educators must prepare students to practic in condition of constant change. At the same time nurse educators must emphasize preparation about that. The practice of science of caring in nursing draws on a basic knowledge of the behavioral knowledge, biophysical processes, pathological processes, nursing skills and procedures and various treatment regimes and problem solving to help decision making in nursing situations. The concept of care is probably one of the least understood ideas used by professional and nonprofessional people, yet it is probably one of the most improtant concepts to be understood by nursing. Human caring and human relationships are closely interrelated. Humn caring remains an essential dimension of professional work and the science of caring as essental to the discipline of nursing. It is expected that the objectives of nursing education will be accomplished when the course and content of the curriculum are based on this conceptual framework. One recurrent education goal with some consistency is that of equipping the student with the necessary skills to live effectively and productivly in the world of tomorrow. In the new vision we are developing, professional education must also include exposure to liberal arts, encouragement of critical thinking, and a moral context for advanced professional education that is based upon a contextual health policy and caring science educational model.

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간호조직내 인사고과제도운영에 관한 고찰 (A Study on the Management of Performance Rating System in Nursing Organization)

  • 하나선
    • 대한간호
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    • 제31권5호
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    • pp.53-64
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    • 1992
  • A nurse is give much weight in the professions of hospital.The effective achievement of a goal of hospital organization needs to get nurses to contribute the structure positively through the rational personnel management of the nurses.The operation of performance rating system is necessary to improve because the nurses hold negative opinions about the resonable management of that system in most Korean hospitals.Therefore, the prupose of this research was to suggest an efficient method to solve the problem in connection with the management of nurses performance rating system.The results of the study are summarized as follows.1. As the performance rating implies the evaluation of employee's functional accomplishment and ability, and essential condition of the job was surveyed according to the job analysis of nursing activities and nurse position.That is to say, Nusrses' performances and capability is estimated in comparision with the condition of the job. 2. It is required adequacy for evaluation factors in performance rating.That is, $\circled1$ as for those who work in psychiatry or newborn baby room they should be appraied in terms of different factors from those applicable to whom work in a general staffs. $\circled2$ Evaluation factors should be concrete so that the quality and quantity of work and the potential ability of them can be correctly appraised. 3. In order to realize the object of perfamance rating system, the training on chief nurses are quite important. Also, careful practices and continuous supplementary training are required before the system is introduced.First of all, the appropriate evaluation can be mad by continuing to record the rating objects every day for the purpose of obtaining the objectivity of rating. 4. In course of transfering of the position and training, the induction of self-rating system and presentation of self-description is required to supplement functionally the performance rating system. 5. For the efficiency of nurses' performance rating system, the results of performance rating system must be reflected in promotion, allocation and training course, which makes the nurses have the motives and the organization accomplish the goal of modern nursing through its activation.

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HILS를 활용한 전투차량의 반능동 현수장치 적용에 관한 연구 (A Study on the Appication of Semi-Active Supension Units for a Combat Vehicle by Using HILS)

  • 김지웅;김문준;이은준;이경훈;우관제
    • 한국군사과학기술학회지
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    • 제13권6호
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    • pp.967-975
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    • 2010
  • There have been a lot of efforts on the improvement for the ride comfort and handling stability of the combat vehicles. Especially most of vehicles for military purpose have bad inertial condition and severe operating condition such as the rough road driving, and need a high mobility in the emergency status. It is necessary to apply the controlled suspension system in order to improve the vehicle mobile stability and ride comfort ability of crews. A feasibility study is performed on the application of the semi-active suspension system with a magneto-rheological controlled shock absorber for a $6{\times}6$ combat vehicle. First, the dynamic simulation model of the vehicle including the control model for the semi-active suspension system was executed. Based on this model, a hardware-in-the-loop simulation(HILS) system which has a semi-active suspension controller hardware was constructed. After full vehicle simulations were performed in virtual proving courses with this system, the semi-active suspension system was proven to give better ride comfort and handling stability in comparison with the conventional passive suspension system.

이진자료 분류모형에 대한 평가측도의 특성 비교 (Comparison of evaluation measures for classification models on binary data)

  • 김병수;권소영
    • 응용통계연구
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    • 제32권2호
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    • pp.291-300
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    • 2019
  • 본 논문에서는 반응변수가 이진형인 분류모형에 대한 평가측도들의 특성을 파악하고 사용하기 적합한 평가측도인가를 살펴보았다. 고려한 측도는 정분류율, 민감도, 특이도, 정밀도, F-measure, HSS (Heidke's skill score)의 6개이다. 각 측도들은 이원분할표에서 x(실제로 1인 비율), y(1로 예측되는 비율), z(실제와 예측이 모두 1인 비율)을 사용하여 표현하였다. 본 연구는 평가측도가 사용하기 적합한 측도가 되기 위한 조건으로 두 가지를 제안하였다. 제1조건은 랜덤모형인 경우에 평가측도는 x와 y에 대해 상수이고, 제2조건은 평가측도의 식이 세 변수들(x, y, z) 모두로 이루어지고 z에 대해서 증가함수이고 x와 y에 대해서 감소함수이어야 한다는 것이다. HSS는 두 조건을 모두 만족하므로 이진형 반응변수의 분류모형에 대한 평가측도로 항상 사용이 적합하고, 다른 측도들은 제한된 범위 내에서만 사용하는 것이 좋다.

정수 처리기술 기준 도입을 앞둔 전국 정수장의 소독능 관리 현황 및 특색 (Characteristics of Disinfection Performance in Water Treatment Plants with Introducing Treatment Technigue Requirement)

  • 염철민;조순행;정해웅;윤제용
    • 한국물환경학회지
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    • 제18권3호
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    • pp.327-336
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    • 2002
  • Disinfection process in water treatment plants (WTPs) is one of the most important step in order to inactivate waterborne disease. However, what is the necessary disinfection in WTPs was not properly established in Korea. This study was conducted to evaluate disinfection performance in nationwide water treatment plants (n=474). Disinfection requirement based on the SWTR (Surface Water Treatment Rule) of the U.S. (1-log Giardia removal) was chosen in estimating the compliance. The scope of unit process for evaluating disinfection performance includes postdisinfection process in clearwells, pipeline, and storage tank. The worst water quality condition in individual WTPs was applied for the disinfection performance evaluation. The major results are as follows. First, it was appeared that 184 WTPs (39 %) provided insufficient disinfection performance. Disinfection performance was significantly improved during past 2 years. The ratio of the number of WTPs providing insufficient disinfection performance in 1999 and 2001 was 78 % and 41 %, respectively. One of major factors for this improvement was due to the improvement of $T_{10}/T$ value in clearwell, as a result of modification of clearwell facility. Second, if disinfection criteria is 3-log Giardia inactivation at worst water quality condition, then 19 % of all WTPs can not meet this disinfection criteria. And if disinfection criteria is strengthened to 4-log Giardia inactivation, then 58 % of all WTPs can not meet this disinfection criteria. Since disinfection criteria is decided by contamination level of Giardia in source water, it also needs the investigation of Giardia occurrence in source water.

생산 공정 자료 기반 양산단계 전차 전장관리체계 환경 부하 선별 시험 방법 및 적용 개선에 관한 연구 (A study on Mass production stage Tank Battle Management System Environmental Stress Screening test method and application improvement based on Production process data)

  • 김장은;심보현
    • 품질경영학회지
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    • 제43권3호
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    • pp.273-288
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    • 2015
  • Purpose: In this study, we apply environmental stress screening (ESS) to battle management system (BMS) of a tank and use the ESS profile based on production process data, guided by MIL-HDBK-781/344/2164. Methods: To optimize ESS Profile of the BMS of a tank, we estimate ESS model parameters (e.g., defect density, screening strength) using primary production failure reporting and corrective action system (FRACAS) data of military supply contract firm. Results: First, we collect the Primary production FRACAS data of military supply contract firm. Second, we compute curve fitting approach to find patent defect density and latent defect density using FRACAS data. Third, we solve the equation of Defect Density(patent defect density + latent defect density)($D_{IN}$) and Screening Strength(SS) Using second step data. As a result of analysis according to the order, we calculate $D_{IN}$(Temperature stress case : 74.02, Vibration stress : 10.252) and : SS(Temperature stress case : 0.4632, Vibration stress : 0.4142) and confirm the Condition II-D based on MIL-HDBK-344. According to Condition II-D, it is necessary to modify existing ESS profile through decreasing the $D_{IN}$ and increasing the SS. Conclusion: Identification of defect causes through ESS approach reduce defect densities for production. It provides feedback to a lessons-learned data base to avoid similar problems on next generation tank BMS.