• 대한조선학회지
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• 제19권2호
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• pp.41-60
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• 1982

The main idea of this report, which deals with the process analysis in outfitting fields, is to improve working methods and further to secure higher productivity by removing unreasonable work factors in the workshop with the economical point of view. For this purpose, a series of techniques has been applied to some parts of chronically less productive outfitting works, expecting less man hour consumption and better working conditions to go with it. That is to make full use of process chart flow diagram(man & machine chart gang process chart). The text gives brief introductions of the charts respectively and the appendix shows actual practice directly applicable for the guidance of utilizing these charts. As the result of this, some of unreasonable work factors are removed from the total cycle and finally standard working method & time can be come out by reasonable working time and gradually improved working method.

• Journal of Korean Neurosurgical Society
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• 제47권3호
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• pp.210-212
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• 2010

Sildenafil citrate ($Viagra^{(R)}$ Pfeizer US Pharmaceutical Group, New York, NY, USA) is a potent vasodilating agent to treat male erectile dysfunction. Among its adverse effects, hemorrhagic stroke has not been widely reported yet. We present a case of a 33-year-old healthy man who ingested 50 mg sildenafil a half hour before onset of headache, nervousness and speech disturbance. Head computed tomogram of this stuporous man showed huge intracerebral hemorrhage and thick subarachnoid hemorrhage, but angiography failed to disclose any vascular anomalies. Subsequent surgical procedure was followed, and rehabilitation was provided thereafter. Sildenafil seems to act by redistributing arterial blood flow, and concurrent sympathetic hyperactivity, which lead to such hemorrhagic presentation. Extreme caution should be paid on even in a young adult male patient wven without known risk factors.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 추계학술대회 논문집 전력기술부문
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• pp.284-286
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• 2004

When Power market is restructured, we have an argument with selecting Transmission loss factors. First, we determine the method of calculating Transmission loss factor using OPF (Optimal Power Flow) or PF (Power Flow Equation). Then, we decide that we applicate the factor which are identical value all the year or which are floating Transmission loss factor every each hour. In this study, we accomplish the method of computing Transmission cost in competitive market.

• 한국콘텐츠학회논문지
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• 제11권6호
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• pp.135-143
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• 2011

영화 등에서 컴퓨터그래픽 기술은 전체 흐름의 중심을 차지하는 핵심적인 요소이며, 미국 등에서 개발된 첨단 영상 기술을 바탕으로 디지털콘텐츠 산업을 견인하면서 비약적인 성장을 이루고 있다. 그러나 국내의 경우, 영상 콘텐츠의 제작 과정에서 연구개발을 병행하기 어려운 열악한 상황이고 해외 상용 툴에 대한 의존도가 높고, 노동 집약적인 제작 파이프라인(pipeline)으로 구성되어 있다. 이러한 문제점을 극복하기 위하여 개발된 하드웨어 및 소프트웨어 연구 결과물을 기술하였으며, 개발된 시각효과 기술을 바탕으로 시범 콘텐츠("The Sixty-miles-an-hour man")의 제작 과정을 정리하였다. 특히 정확한 카메라 모션추적 및 자연스러운 영상합성이 이루어지도록 실제의 동적 환경에서의 다양한 촬영 및 기술적 요소를 고려하였다. 또한 시나리오를 작성하는 과정에서 기술 개발자와 콘텐츠 제작자간의 상호이해와 협력이 중요하며, 이를 통해 제작현장에서 핵심 기술 요소의 도출 등의 중요성을 확인하였다. 그리고 제작효율성을 높이기 위해 필요한 요소기술을 도출해 제작환경의 구조개선 및 확장 가능성 등에 대한 고려가 요구된다.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2003년도 가을 학술논문집
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• pp.671-675
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• 2003

연구로 1,2호기 해체 사업이 본격적으로 착수하게 됨에 따라 2001년 8월부터 2002년 12월까지 연구로 2호기 부속시설인 동위원소 생산시설을 제염 및 해체하였다. 이 시설은 동위원소 생산용 콘크리트 핫셀, 납 핫셀 및 실험실로 구성되어 있다. 제염ㆍ해체의 대상물은 흄후드, 실험대, 씽크 및 오염된 내부 시설물이다. 안전한 해체 활동을 위해서 각종 지침서 및 절차서가 수립되었다. 해체 활동을 위해 총 20,933 man-hour의 인력이 소요되었고, 드릴링 머신 등 여러 장비가 투입되었다. 실험실에서의 최대 오염도는 유리성 오염도가 $\beta$ : 9.24 Bq/$\textrm{cm}^2$이였고, 고착성 오염도는 350,000 cpm이였다. 해체폐기물은 콘크리트류, 목재류 및 철재류 등으로 총 62.146 Ton이고, 작업자들의 피폭량은 0.33 mam-mSv로 나타났다.

• 한국축산시설환경학회지
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• 제3권2호
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• pp.87-95
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• 1997

This study was peformed to compare work routine time and performance of milking systems by measuring motion and time in milking procedure. Data were collected from thirteen dairy farms among which milking was done by bucket in two farms, by pipelines in three, by tandem parlors in four including one remodeled side-opening, by herringborn parlors in three and by a parallel milking parlor. Recording time and motion for milking parlor. Recording time and motion for milking procedure was performed by stopwatch and notebook computer. Work routine elements were recorded and calculated into cows milked per-man-hour(CMPH). The results are as follows : Average milking time per cow(MTPC) in bucket and pipeline milking systems usually installed in cow stall were 442.7 and 395.8 seconds, respectively. And average CMPH of bucket and pipeline milking system were 144.5, 303.3, 272.5 and 380.3 seconds, respectively. And CMPH of tandem, herringbone, parallel and modified side-opening systems were 24.9, 11.9, 13.2 and 9.5 heads, respectively. CMPH was the highest in the tandem milking system and the lowest in the bucket milking facilities. CMPH, when milked in a parlor resulted in high value compared with bucket or pipeline milking systems installed in cow stable. They showed considerably low CMPH compared with the results of other countries. The reason why so low CMPH could be derived from type and mechanization of facilities and equipment, operator's ability, number of operator, idle time and milking procedure.

• 대한한방내과학회지
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• 제41권4호
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• pp.644-657
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• 2020

Objectives: The aim of this study was to systematically evaluate the clinical therapeutic effects and safety of the Zeo lyung tang (ZLT) on primary glomerulonephritis (PGN). Methods: The MEDLINE, EMBASE, PubMed, CENTRAL, CNKI, RISS, NDSL, KISS, and OASIS databases were searched for randomized controlled trials (RCTs) testing the effects of ZLT on PGN. The Cochrane collaboration bias risk assessment scale was used to evaluate the methodological quality of the included studies. RevMan 5.3 software was used for data analysis. Results: Ten RCTs involving 781 patients were included in the review. Compared with conventional Western medicine (WM) therapy alone, a combination treatment of ZLT and WM improved the total effective rate (RR=1.24; 95%CI [1.16, 1.33]; p<0.00001), reduce the blood urea nitrogen (BUN; MD=-1.05; 95%CI [-1.32, -0.78]; p<0.00001) and the 24-hour urinary protein (MD=-0.38; 95%CI [-0.46, -0.29]; p<0.00001). Conclusions: The combination of ZLT with WM has therapeutic effects on PGN, and it has advantages over WM treatment alone in reducing BUN and 24-hour urinary protein. However, due to the low quality of the included studies and the small sample sizes, additional research is needed in this area.

• 대한예방한의학회지
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• 제11권2호
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• pp.121-132
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• 2007

The purpose of this study is to find out the effects of taping therapy on muscle activities between the group of taping therapy treatment and control group before or after exercises. The subjects are 18 S college's healthy male students who do not have any problems in the legs and could bend the knee joint normally. Considering physique, condition of health and capacity for locomotion, 3 groups of each 6 persons for the experimentation were classified. Three groups composed of control group without taping therapy treatment for control group, group I with taping therapy treatment only before the experimentation and group II with taping therapy treatment during 24 hour. before and after the experimentation. EMG MP150 was used to evaluate the parameter of the lower leg's muscle activities the exercise before 5 min. after 10 min. and after 24 hour. for the experimentation. Compared with control group, group I and group II had more increased muscle activities in vastus lateralis and rectus femoris and was statistically significant. And group I and group II also had more increase in muscle activities than control group in vastus medialis, although there was no statistically significant. We found that taping therapy increased muscle activity positively. The application of taping therapy could be used not only for preventive effects for sports man but also therapeutic effects for general people.

• 조명전기설비학회논문지
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• 제18권5호
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• pp.105-111
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• 2004

본 논문에서는 실제 전력 수요 데이터를 이용하여 유효전력에 단기 부하 예측함에 있어 무효전력이 중요한 역할을 하는 것을 회귀 분석 검정 통계량으로 증명한다. 무효전력의 공급과 수요는 계통의 전압과 아주 밀접한 관계를 가지고 있으므로 계통전압을 관리하고 계통의 신뢰도를 높이기 위해서는 예측된 무효전력 수요에 따라 무효전력 공급계획을 별도로 수립하여 운영해야 한다. 따라서 본 논문에서는 다중 시계열 모델을 이용한 시전 예측방법을 이용하여 설명변수로 유효전력을 사용하여 부하의 무효전력을 예측 하였다.

• Nuclear Engineering and Technology
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• 제29권4호
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• pp.336-347
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• 1997

During postulated severe accidents in Light water Reactors, molten corium which was ejected from the reactor vessel bottom, may erode the concrete basemat of the containment and there by threaten the containment integrity. This study experimentally examines the molten core-concrete interaction (MCC) using 20kg of thermite melt (Fe + $Al_2$O$_3$) and the concrete, used in Yonggwang Nuclear Power Plant Units 3 and 4 (YGN 3 & 4) in Korea. The measured data are the downward heat fluxes, concrete erosion rate, gases and particle generation rates during MCCI. Transient results ore compared with those of TURCIT experiment conducted by SNL in USA. The peak downward heat flux to the concrete was measured to be about 2.1㎿/$m^2$. The initial concrete erosion rate was 175cm per hour, decreasing to 30cm per hour. It was shown from the post-test that the erosion was progressed downward up to 18mm in the concrete slug.