• 대한전기학회:학술대회논문집
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• 대한전기학회 1996년도 하계학술대회 논문집 A
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• pp.609-612
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• 1996

This paper describes a design and implementation of the practical SMPS(Switched Mode Power Supply) with multi-output independent regulation scheme. The designed SMPS is applied to the PSU(Power Supply Unit) of high power GTO drivers for a inverter system. In order to accomplish precise voltage regulations for both turn-on and turn-off bias voltages of the GTO driver, the conventional forward type PWM converter scheme is adopted with the Post Regulator using a Saturable Reactor. Analytic design criteria and control schemes are described for practical applications. Finally, the precise regulation of multi-output voltages is proved by experimental results.

• 한국학교보건학회지
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• 제1권1호
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• pp.61-102
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• 1988

One of the first constitutional challenges to congressional legislation in the area of school health came in 1967. The action of Ministry of Education for the school health program is within school health act constituted 20 Articles and its regulation of 14 Articles. This study was reviewed the school health act and its regulation for the development of school health program. The data were collected by 14 Boards of Education from November 1986 to January, 1987. The results of this study were identified the articles needss to change such as the articles with regard to health education activity, physical assessment activity, criteria of school health environment, control of communicable disease, First-Aid and clinic management by School nurses.

• 한국분말야금학회:학술대회논문집
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• 한국분말야금학회 1998년도 추계학술대회 및 발표대회 강연 및 발표논문 초록집
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• pp.7-7
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• 1998

Research activities of Russian Medical Engineering Center and Institute of Medical Materials of Shape Memory Alloys and Implants are presented as follows: ${\bullet}$ The direction of elaboration of porous shape memory alloys for medicine. ${\bullet}$ Medical and technical requirements and physical and mechanical criteria of porous shape memory implants elaboration. ${\bullet}$ Basic laws of heat-, stress- and strain-induced changes of mechanical properties, shape memory effect and superelasticity in porous TiNi-based alloys. ${\bullet}$ Methods of regulation of shape memory effect parameters in porous alloys and methods for controlling the regulation-induced changes of physical and mechanical properties. ${\bullet}$ Original technologies of elaboration of porous alloys In various fields of medicine. ${\bullet}$ Arrangement of serial production of shape memory porous implants and examples of their medical use.

• 대한인간공학회지
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• 제34권3호
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• pp.265-278
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• 2015

Objective:To study the sources of indoor noise, its effects on human health, noise assessment and regulation through the use of standards, and techniques used to reduce noise. Background: Noise significantly affects the living environment, and there are an increasing number of reports of its impacts on human health. Method: We reviewed domestic and foreign data regarding environmental noise, and examined its effects and the standards used to regulate noise levels. Results: We describe the major sources of indoor noise and suggest possible legal standards, as well as recommended criteria for the control of noise. Conclusion: South Korea has higher legal standards of environmental noise than international standards in terms of threshold values. People in Korea are exposed to various sources of noise, and therefore the reduction of noise is urgently required. Application: Depending on the features of indoor spaces, an appropriate degree of indoor noise can be determined and techniques to reduce excess noise are required.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2007년도 추계학술대회논문집
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• pp.1482-1489
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• 2007

In this paper, characteristics of infrasound and low-frequency noise emission from large modern wind turbines are experimentally investigated. The sound measurement procedures of IEC 61400-11 and ISO 7196 are utilized to field test and evaluation of noise emission from each of 1.5 MW and 660 kW wind turbines using the stall regulation and the pitch control for the power regulation, respectively. It was found that the G-weighted SPLs of low-frequency noise including infrasound shows positive correlation with the wind speeds, irrespective of methods of power regulation. This highlights the potential complaint of local community against the infrasound and low-frequency noise of wind turbines. The comparison of measured data with the existing hearing thresholds and criteria curves shows that it is highly probable that the low-frequency noise from the 1.5 MW and 660 kW wind turbines in the frequency range over 30 Hz leads to the psychological complaint of ordinary adults, and that the infrasound in the frequency range from 5 Hz to 8 Hz causes the complaint by rattling the house fitting such as doors and windows.

• 한국CDE학회논문집
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• 제19권3호
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• pp.224-235
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• 2014

Recently, Productivity of the construction industry has been decreasing than other industries. Because of this, BIM is being spread in the construction industry. However, quality criteria for BIM data is insufficient. Regulation information is an important factor for initial architectural design evaluations. However, building code and related regulation are numerous. National building code structure in Korea is much more complex than other countries. The purpose of this study is to suggest the typology method of building code and apply to real regulations. To achieve this purpose, the authors have extracted required information to from original regulation for code checking and suggested mapping methods between extracted information and information of IFC scheme. In addition, the authors have represented EXPRESS-G diagram for extracting information from IFC scheme and suggested code checking method through stair case. Output of this study can be used as a base line data for automated code checking system based on open BIM. Automated code checking system will be utilized in architectural design evaluations and supported to increase design quality. It can be used to mount in SEUMTER that is the construction administration system of Ministry of Land, Infrastructure and Transport (MOLIT).

• 한국통신학회논문지
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• 제33권7C호
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• pp.529-533
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• 2008

본 논문은 FTTH 도입에 대비하여 현행 국내 광가입자망 구축 공법 및 케이블 포설 등에 관련된 기술기준의 개정 사항 도출을 위하여 광케이블의 곡률 반경과 밴딩 횟수의 변화에 따른 광케이블 채널 손실 특성 및 이종 모드간 광케이블 접속 시 발생하는 채널 손실 특성을 시험 측정하였다. 곡률 반경 및 밴딩 횟수의 변화에 따른 시험 측정 결과 30mm의 현행 허용 곡률 반경 기준을 보다 완화하여도 채널 손실 기준을 만족하는 것으로 나타났으며, 이종 모드간 케이블 접속 시험 측정에서는 다중 모드로부터 단일모드로의 접속 시 원활한 정보 전달이 불가능 한 것으로 나타나 향후 이종 모드간 광케이블 접속 규격에 대한 보다 심도 있는 연구가 요구되고 있다.

• 한국중재학회지:중재연구
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• 제18권1호
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• pp.3-30
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• 2008

This paper is to research the current status of ADR in Korea, the qualifications of mediator (or conciliator) and arbitrator, the ADR education program of major foreign arbitration-related institutions and the efficient management device of ADR education program for the activation of the ADR system. In 2007, arbitration applications received at the Korean Commercial Arbitration Board numbered 320 and the amount involved those cases was US$ 216 millions. Mediation applications received at the KCAB numbered 552 and the amount involved those cases US$ 29millions. As of December 2007, the total numbers of arbitrators on the KCAB Panel of Arbitrators was 978. There are no provisions for the qualification of arbitrator in the UNCITRAL Model Law on International Commercial Arbitration and Arbitration Act of Korea. The KCAB has the consolidation regulation of the Panel of Arbitrator of which purpose is to regulate the criteria and procedure regarding the drawing up and maintenance of the panel of arbitrators. The UK Chartered Institute of Arbitrators has the criteria and qualifications for membership of which three grades are associate, member and fellow. The American Arbitration Association has the qualification criteria for admittance to the AAA National Roster of Arbitrators and Mediators. The Japan Association of Arbitrators has the official authorization regulation for membership of which three grades are special associate, ordinary associate and fellow. The UK Chartered Institute of Arbitrators has the ADR education programs which are composed of the mediation courses and arbitration courses. The American arbitrators Association has the ADR education programs which are composed of in-person training and online training. The Japan Association of Arbitrators has the ADR education programs which are composed of the cultivation courses of conciliator and the practical training courses of arbitrator. The efficient management devices of ADR education program are as follows: the execution of official authorization system of arbitrator, the establishment of specialized division for training and official authorization, the establishment of ADR regular training courses, the publication of ADR training texts and obtaining of instructors, and the consolidation of regulations related to the official authorization of arbitrator and ADR training. In conclusion, for the activation of ADR system, the KCAB and Korean Association of Arbitrators should make further effort to provide the ADR regular education and training programs for potential and practicing conciliators and arbitrators.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2008년도 춘계학술대회논문집
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• pp.9-12
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• 2008

There are many place of business in complex building, and recently claims of noise have increased in those buildings. It is most desirable reducing the noise problems to establish the noise criteria considering the noise source and the receiving place of business, which are derived from the dose-response of noise and results of the actual condition. The degree of response to the transmission noise could be changed with background noise level in the receiving stores. In this research, the subjective evaluation for three different background level in receiving place of business or rooms were investigated from subjective tests. The eight business sound source including aerobic music were used for the test.

• 대한조선학회논문집
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• 제53권4호
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• pp.249-257
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• 2016

The purpose of this study is finding the key factors for navy to determine the necessity of naval ship PIP(Performance Improvement Program) against the altered battle field environment and politics. Recently, leading countries try to cope actively with the changing international circumstances and technology development trend in the commercial industry. In the case of domestic situation, based on the regulation, it is possible to modify the ship configurations by PIP, but there are not enough criteria and references to make a decision of necessity for the PIP program considering the naval ship acquisition planning by navy. It is necessary to acquire the obvious decision criteria for determination of PIP commencement, by the operational, political and security environment around the Korean peninsula. Considering these conditions, this study proposes the factors necessary for naval ship PIP for navy.