http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
On-Line UPS 기능 내장형 ESS 설계 및 적용
권용효(Yong-Hyo Kwon),김말수(Mal-Soo Kim),오기형(Gi-Hyeong OH),장성국(Sung-Kuk Jang),최종철(Jong-Chul Choi),박기원(Ki-Won Park) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6
본 논문에서는 ESS(Energy Storage System)의 Battery측 DC 전압을 공유하여 기본적인 ESS구성에 On-Line UPS기능을 함께 가지는 Multi-Function ESS를 설계하고, 적용한 기술을 설명 한다. 용량은 PCS 250kW, Battery 190kWh, UPS 125kW용량으로 구성하였으며, UPS는 125kWh 2Set를 이중화하는 구성으로 설계 하였다. On-Line UPS 기능 내장형 ESS 전체 제어는 PMS를 통해 이루어지며, 기본적으로 계통연계(GC), 독립운전(GI), GC와 GI가 센싱을 통해 자동으로 절체되는 Auto Mode 제어 모드를 가지며, TOU Application 운영이 가능하도록 제어기를 구현하였다. 또한 PMS는 Battery SoC를 모니터링하여, 사용자가 ESS와 UPS운영을 필요에 따라 용량을 정의하고 운영할 수 있도록 하였다. 관련기술을 기본/상세 설계 후 제작하여, 기능 및 성능에 대한 시험 검증 후 실제 부하와 연계하여 실증한 사례를 기술 한다.
병원폐기물중 폐합성수지류의 물성 및 세척·선별에 관한 기초연구 : 폐주사기와 폐수액세트를 중심으로
권기홍,성병주,박종웅 慶山大學校 環境시스템開發硏究所 1999 環境硏究 Vol.4 No.1
This research was carried out basic study to effective manage and develop washing-separator system for plastics in hospital wastes. The results are as follows : In 1995, the generation rate of plastics in hospital waste was 6,666ton in total amount of 11,195ton. Most of syringe was PP and the composition of drainage set was PP, PVC and ABS. Therefore, separation of syringe is better than that of drainage set. Pathoganic microbes in syringe was positive before sterilization process, but became negative after that process, Pollution of syringe-washing water was increased as washing times increased and optimum washing to obtain good pellet was 6 times. Separation efficiency differed with content of injected rubber in the manufactory process of syringe makers. Remaining rubber in pellet was completely removed by the final separator developed during the this project, so we obtained good PP pellet.
대나무 섬유소를 이용한 섬유보강 콘크리트의 역학적 특성
류현기,권용주,신상용 忠州大學校 2009 한국교통대학교 논문집 Vol.44 No.-
This study is a experiment on the mechanical properties of concrete according to the fiber additional quantity of bamboo. The experiment and analysis results are as the following. The slump as a quality of the concrete not to harden showed to decrease more remarkably for a slump value than the plain according to the increment of cellulose additional rate. Air quantity showed to increase only in 0.2% fiber additional rate and to get out of KS allowable error of bad air content in 0.4% and 0.6%, and capacity mass by unit showed a reverse tendency against air quantity according to the change of cellulose additional quantity. Compression intensity as a quality of hardening concrete showed collectively a tendency to decrease in the remnant past days except only 0.6% at the standard past day 愀8 and the initial 3 days. Pulling intensity showed to increase more than the plain in all past days according to the change of fiber additional quantity of bamboo, and bending intensity also showed to be higher revelation intensity than the plain in the measurement result at the standard past day 28. In the result of length change rate, we can find the bigger the cellulose additional rate as a special quality increased, the more it decreased according to the pass of the past day.
문창기,박상준,조민구,김영중,김소연,김윤권,정준오,안석진,김은실,서승오,김지훈,최원제,이윤영,박형기,최규영,김현근 대한감염학회 2006 감염과 화학요법 Vol.38 No.6
Background: The purpose of this study was to document the incidence and clinical characteristics of patients with tuberculosis (TB) in combat and auxiliary police, living in a group, in Korea where the incidence rate of active TB in a general population is higher than in Western countries. Materials and Methods:We retrospectively reviewed the medical records of all tuberculosis patients diagnosed at National Police Hospital from January 2002 through December 2004. Results:In 2002-2004, a total of 156 cases of tuberculosis were identified with the mean (Standard deviation) age of 20.6 (±1.0) years. Of these, 134 (85.9%) patients were registered as new cases, 11 (7.1%) as relapse, 2 (1.3%) as failure, 5 (3.1%) as treatment-after-default cases whereas 4 (2.6 %) patients were not included in any categories. Average annual new TB rate and smear-positive TB rate were 86.5/10^(5) and 17.4/10^(5) person-years, respectively. In 12 of 31 smear-positive cases, time from onset of symptoms to diagnosis was more than 30 days. Two multidrug-resistance TB cases were identified and two suspected outbreak episodes of TB had occurred during 3 years. Conclusion:There was no statistically significant difference in the incidence rate of new cases of TB between the general population aged 20 to 29 years and combat and auxiliary police in Korea. 배경 : 국내 결핵의 발생은 감소 추세에 있으나 여전히 후진국형 발생양상을 보이고 있다. 특히 집단생활을 하는 젊은이들에서 발생하는 결핵의 유행이 간헐적으로 알려지고 있어 우려를 낳고 있다. 이에 저자들은 최근 전경대원의 결핵 발병 양상에 대해 알아보고자 본 연구를 시행하였다. 재료 및 방법 : 2002년 1월부터 2004년 12월까지 3년간 경찰병원에서 결핵 진료를 받은 전경대원의 의무기록을 후향적으로 분석하여 연도별 결핵 신환발생률, 도말양성결핵 신환율, 진단 지연, 집단발병, 다제내성결핵을 조사하였다. 결과 : 연도별 결핵 신환자 수(10만명당 발생추정치)는 2002년 50명(83.6명), 2003년 42명(83.7명), 2004년 42명(93.5명)이었고 도말양성 폐결핵 신환자 수는 2002년 10명(16.7명), 2003년 11명(21.9명), 2004년 6명(13.4명)이었다. 3년간 도말양성 폐결핵 환자는 31명이 있었고 그 중 12명은 호흡기 증상 발생 30일이 지나서 진단을 받았다. 다제내성 결핵은 2명이 있었으며 결핵의 집단발병이 의심되는 사례는 2차례 있었다. 결론 : 전경대원과 20-29세 연령군 일반인의 결핵 신환발생률, 도말양성 폐결핵 발생률의 통계적으로 유의한 차이는 없었다.
민형기,권성하,정은태 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-
This paper presents an improved method that constructs an equivalent T-S fuzzy model for nonlinear systems expressed by nonlinear differential equations including terms of power series. The proposed method has fewer numbers of the rules than the previous methods as well as exactly expresses nonlinear systems. Moreover, this method can get wider feasible area satisfying the stability conditions than the previous methods. We show the improvement of modeling by comparing the proposed method with two previous methods through an inverted pendulum on a cart.