• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.5
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• pp.2249-2253
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• 2011

This paper analyzed the problems of the Korean output regulation in the relevant band through an analytic comparison of the current trend of each country and their standard values concerning the technical standard of low power u-IT equipments. In connection with the standard value of technical values of each country, which has been proposed in the registration of the appropriate electric wave, the paper aims to propose the standard value that could actually be introduced for suitable low power u-IT installations in Korea. Provided that the Korean standard may be upgraded based on the tolerances of technical standards proposed in this paper, this is expected to be committed to the distribution and advancement of low power u-IT equipments; and further, it is anticipated to be prepared with competitiveness not only in the Korean communications market, but also in the international communications market.

• JOURNAL OF ELECTRICAL WORLD
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• s.309
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• pp.77-82
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• 2002

유도전동기(이하 $''$모터$''$라 한다)는 기본 원리가 19세기말에 발명된 이래 100년 이상의 역사를 갖고 있으며 그 동안 제조업의 기간동력으로 성장하여 왔고, 재료의 진보(코어, 전선, 절연 등)와 설계기술$\cdot$해석기술$\cdot$제조기술의 개발로 각 특성의 향상, 소형$\cdot$경량화, 고성능화가 도모되어 왔다. 그러나 최근의 지구온난화를 포함한 환경보호와 화석에너지 고갈위기감으로 에너지절약 움직임이 가속화되고 있어, 모터에 대해서도 고효율화의 요구가 높아가고 있다. 미국이나 캐나다에서는 규격이나 법률에 의한 모터의 효율규제가 실시되어, 특히 1997년 10월 24일에 시행된 미국에너지정책법(EPAct)은 미국 국내에서 제조$\cdot$판매 또는 해외로부터 수입되는 모터단체(단체)나 기계에 조립되어 있는 모터도 미국에너지정책법에서 규정하고 있는 효율기준치를 충족하지 못할 경우에는 벌칙이 부과되는 엄격한 실정이다. 일본에서는 종래 고효율모터의 효율기준치는 일본전기공업회 기술자료 제137호(성에너지를 위한 전동기의 선정과 운용)에 따르고 있었으나 미국에너지정책법을 기초로 새로히 일본공업규격(JIS C 4212)이 2000년 7월에 제정되었다. 미쓰비시(삼릉)전기는 일본의 JIS 규격과 EPAct법 양쪽의 효율기준치를 만족하는 고효율모터를 시리즈화하고 또한 미국에너지성의 적합증명번호(CC넘버)를 일본 국내 메이커로서는 처음으로 취득하였기에 다음에 고효율모터와 모터의 고효율화 기술에 대하여 소개한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1571-1574
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• 2012

소프트웨어 개발에 있어 각 단계별 프로세스 활동들에 대한 분석 및 평가는 소프트웨어의 품질을 좌우하는 큰 요인이다. 따라서 많은 소프트웨어 척도들이 소프트웨어 품질을 분석하는데 이용되고 있으며 유사 프로젝트를 통해 설정되는 기준치와 척도 값의 비교가 수행된다. 하지만 기존의 유사 프로젝트를 찾기란 쉽지 않은 일이며 유사 프로젝트를 찾더라도 해당 프로젝트의 개발 환경은 현재 개발 중인 프로젝트의 환경과 다른 경우가 많다. 따라서 본 논문에서는 외적인 기준치에 의존하지 않고 현재 개발 단계의 인스펙션 결과를 분석하는 방법을 제시하도록 한다. 산포도를 이용한 상대적 데이터 분석이 이용되며 국방 도메인에서 개발 중인 프로젝트 내부 31 개의 기능으로부터 수집된 데이터를 통한 사례분석을 수행하도록 한다. 이를 통해 기능들 간 현재 개발 과정의 일관성 유지 여부를 평가하고 다음 개발 단계의 프로세스 활동 강화 여부에 대한 권고 사항을 제시할 수 있다.

• The korean journal of orthodontics
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• v.41 no.1
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• pp.42-50
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• 2011

Objective: The purposes of this study were to establish cephalometric norms of Mongolian adults, which have not previously been reported in orthodontic journals, and to compare them with cephalometric norms of Korean adults. Methods: Lateral cephalometric radiographs of 74 Mongolian adults (35 men, 39 women) and 95 Korean adults (52 men, 43 women) with normal occlusions and well-balanced lateral profiles were obtained. The subjects were chosen by orthodontists of the same ethnic background. Forty craniofacial variables were measured, and groups were compared by analysis of covariance. Results: The cephalometric norms for male and female Mongolian and Korean adults with normal occlusions and well-balanced lateral profiles were established. Sexual dimorphism was found in linear skeletal measurements and vertical skeletal relationships. Compared with Korean adults, Mongolian adults had shorter anterior facial height, more prominent chins, and more upright upper incisors. There were few differences in soft tissue measurements. The differences were statistically significant, but their clinical importance may be limited. Conclusions: Cephalometric differences can be considered, but little difference may exist in the orthodontic diagnosis and treatment planning of Mongolian and Korean adults.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.12 no.4
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• pp.267-276
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• 1979

This research was conducted to evaluate tile effects of polluted Suyeong River water on the water quality of Kwangan-Ri bathing beach. The quantity of pollutant loading of Suyeong River was determined in January 1979, and the directions of tidal currents and the chemical constituents of the Suyeong Bay water were observed in May 1979. The results are as follows: The quantity of total pollutant loading which was discharged into Suyeong Bay is: BOD 75.2ton/day; COD 96.9ton/day; SS 20.5ton/day; ammonia-nitrogen 12.4ton/day; nitrate-nitrogen 430kg/day; nitrite-nitrogen 85.1kg/day; phosphate-phosphorus 594kg/day and total heavy metals 3.01ton/day. Considering the tidal current, the polluted waters of Suyeong River flow off the Kwangan-Ri beach during tile ebb tides, and flow into the Kwangan Ri beach during the flood tides. Consequently, the water quality of Kangan-Ri bathing beach is not suitable for bathing.

• Journal of Oral Medicine and Pain
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• v.32 no.2
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• pp.219-225
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• 2007

This investigation was carried out to evaluate the effect of pain control temporomandibular disorders with clinical application of capsaicin cream. 20 healthy subjects without systemic diseases were measured in current perception threshold and pain tolerance threshold with $Neurometer^{(R)}$ CPT/C (Neurotron, Inc. Baltimore, Maryland, USA) after cold pack, 0.025% capsaicin and 0.075% capsaicin cream application. The obtained results were as follows : 1. The current perception threshold of C-fiber was significantly higher to the baseline on. There were significantly increased in C- fiber current perception threshold of 0.025% capsaicin cream and 0.075% capsaicin cream application comparison to cold pack. 2. There was significantly increased in pain tolerance threshold of cold pack and 0.075% capsaicin application comparison to one of baseline as $A{\beta}$-fiber, There was significantly higher after cold pack and 0.025% capsaicin cream application than baseline as $A{\delta}$-fiber. In C-fiber case, 0.025% capsaicin application's was significantly increased than baseline one. 3.There were significantly higher C-fiber of 0.075% capsaicin application than baseline in visual analogue scale marking pain level of pain tolerance threshold.

• Journal of agricultural medicine and community health
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• v.34 no.2
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• pp.168-174
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• 2009

Objective: This study was conducted to investigate the hygienic state and awareness of drink vending machines in a city. Methods: Twelve of the most frequently used vending machines in various areas were selected in October 2008. As soon as fresh samples of milk coffee and adlay tea were collected in sterile containers from each machine, the temperature was measured. The samples were carried on ice to the laboratory to test total plate counts and Escherichia coli contamination. College students were inquired about drink vending machine hygiene by implementing self-developed questionnaires. Results: The temperature of 6 milk coffee samples (50.0%) and 8 adlay tea samples (66.7%) turned out to be inadequate. The total plate counts of milk coffee samples were all adequate, although 9 adlay tea samples (75.0%) were inadequate. All the beverage samples were negative for E. coli. In questionnaires obtained from 74 users of coffee vending machines, only 2 (2.7%) expected the hygienic state of vending machines to be good. There were 27 people (33.3%) that knew the existence of hygiene-related laws for vending machines. Conclusions: This study reveals that the hygienic state of drink vending machines insufficiently reaches the standard for the hot beverage and that most people are not aware of importance of vending machine hygiene. It is necessary to make improvement in the hygiene of vending machines and public awareness in this city.

• Journal of the korean veterinary medical association
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• v.44 no.9
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• pp.848-855
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• 2008

• Proceedings of the Korea Air Pollution Research Association Conference
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• 1994.04a
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• pp.37-42
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• 1994

• Proceedings of the Korean Nutrition Society Conference
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• 2000.06a
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• pp.34-40
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• 2000