절충연산자를 이용한 다목적 비선형 계획법의 대화형 퍼지 의사결정

최규탁,남현우,박재민 慶南專門大學 1997 論文集 Vol.25 No.1

자기-광전이 형식을 유도하는 두 가지 다체사영연산자 방법의 비교

최상돈,이현정,석적영,조상규,강남룡 慶北大擧校 師範大學 科學敎育硏究所 2000 科學敎育硏究誌 Vol.24 No.-

We consider a magneto-optical transition theory based on the many-body projection technique. And we use two kinds of projectors ; projection-isolation operators and projection operators. The second method turns out to be more convenient than the first method.

Semiclassical Analysis for O + Pb Elastic Scattering at E=216.6 and 312.6 Mev

최치규,현남규,김용주,홍성락 제주대학교 1992 논문집 Vol.34 No.-

실험실계에서의 입사핵?? 에너지가 216.6과 312.6 MeV이고 표적핵?? 인 탄성산란에 대한 실험데이타를 수정된 Glauber모델을 사용하여 분석하였다. 계산된 결과들은 실험데이타와 좋은 일치를 보여주었다. .

玄蔘의 Saponin 成分 檢索 : on the Saponin of the Radix

남인숙,배병숙,최보향,최인수,최태수,김동언,김언주,정미영,조규옥 曉星女子大學校 藥學大學 學生會 1988 曉星藥誌 Vol.4 No.-

Crude saponin(100g) were obtained by extracting the radix(5kg) of Scrophalariae koraiensis Nakai. Crude saponin were positive in the Liebermann-Burchard test. We observed 5 sports by TLC using BuOH saturated with H_2O : ethyl acetate : water(4:1:5, upper phase) as solvent and 1% Ce(SO_4)_2 in 10% H_2SO_4 as a color former. We divided into 3 fractions by common column chromatography using BuOH saturated with H_2O : ethylacetate : water(4:1:5, upper phase) as solvent.

VDT작업별 정신사회적 스트레스와 근골격계 장애에 관한 연구

백남종,강종두,주영수,배인근,권호장,박종만,조수헌,김돈규,김재용,최홍렬 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.4

It has been hypothesized that jobs that have both high psychological demands and low decision latitude("job strain") can lead to musculoskeletal disorder. The objective of this study was to test whether job strain was correlated with the presence of work-related musculoskeletal disorder, especially myofascial pain syndrome(MPS). Information on demographic factors, confounders such as household load and taking care of children or not, and scores for decision latitude, job demand, and social support was obtained by self-administered questionnaire, which had been developed in Korean language, by adopting NIOSH instrument and Extended Karasek Model(16 items). All subjects were also examined by rehabilitation medicine specialists for musculoskeletal disorders. Subjects(n=370) could be categorized into 4 groups, these were, housewives(n=89), shipyard CAD workers(n=89), general female workers(n=79; nurses, insurance counselors, public officials, clerks, etc), and telephone directory assistance operators(n=113). Results from univariate analyses indicated that all demographic factors, all confounders, scores for decision latitude and social support were not associated with the risk of musculoskeletal disorder. However, score for job demand was higher in musculoskeletal disorder cases than others. In subgroup analysis, this association was convinced again, in telephone directory assistance operators. Job strain model showed that the group of telephone directory assistance operators was high-stain group, and OR of musculo skeletal disorder was 2.446(95% C. I. : 1.174, 5.096), when comparing this with the low strain group. In conclusion, job strain is a risk factor for work-related musculoskeletal disorder.

[논문]실험시설 기초의 진동사용성 분석

최형석,전법규,김남식,정진환 釜山大學校生産技術硏究所 2007 生産技術硏究所論文集 Vol.66 No.-

건물에 작용하는 진동하중은 구조물 자체의 성능에 영향을 미칠 뿐만 아니라 거주하는 사람이나 작업기계 동에 나쁜 영향을 가져올 수 있다. 본 연구에서는 이러한 진동에 대한 영향을 평가하는 국내외의 기준에 대하여 고찰하고 다양한 하중과 주파수 대역에서 실험이 가능한 대형지진모사 실험센터에 대한 진동영향 평가를 수행하여 사용성 저하 여부를 확인하였다.

건설현장 근로자들의 안저예방실태와 사고예방과의 개선요인 조사연구

심규범,남철현,최상복,이송권,이정희,이순자,문기내,김문환 慶山大學校 保健福祉硏究所 2003 保健福祉硏究 Vol.8 No.-

This study was conducted to examine aspects of health and safety education and demand level of safety education in construction job sites in order to provide direction of safety education development. The subjects of this study were 566 workers who were working in construction job sites located in Daegu City and Kyungbuk Province. Data were collected from June 1, 2002 to August 30, 2002. The results of this study can be summarized as follows. 1. According to safety education by experience methods, the proportion of education by lecture was highest (90.6%). The proportion of education by field practice was 13.1%. 2. Among the education methods which they thought as the most desirable method, the proportion of audio-visual education was 39.4% and the proportion of education by experience was 37.5%. Those who had more monthly income and higher education level preferred audio-visual education, while those who were younger and less educated preferred education by experience. 3. In the case of the contents of the safety education which they thought as the most important one, the proportion of enhancement of safety awareness and education of risk factors was highest (24.7%). The groups of older workers, having longer working period, and belonging to higher education level preferred these contents. 4. According to the factors which were most important to increase effectiveness of the safety education were workers' voluntary participation (27.7%), 40 to 49 years old (27.7%), and monthly income of one million, five hundred thousand won to one million, nine hundred ninety thousand won (32.0%). The proportions of lower educated workers and working as daily workers were also high. 5. The variable which most influenced the safety education was age. The safety awareness of construction job sites was the second highest influential variable. From above results, it is clear that the workers' participation in the safety education was low since most of the safety educations were formal education by lecture. Although they participated in the education, the education was also not effective because they compulsorily participated in it. Therefore, it can be concluded that effective alternative policies must be formulated.

감초(Glycyrrhiza uralensis Fisch) 추출물이 밀가루 물성 및 빵의 품질에 미치는 영향

조남지,최영주,조규성 안성산업대학교 1995 論文集 Vol.27 No.-

甘味 添加劑로서 甘草 엑기스를 제빵제조시 添加했을 때 반죽물성과 제품품질에 미치는 影響을 측정하기 위하여 farinograh, Extensograph, Amylograph를 측정하였고, 발효팽창력, 내상, 비용적, 관능검사 등을 조사하였다. 1. 사용한 甘草의 일반성분으로는 수분 73.7%, 조단백 4.1%, 조지방 2.8%, 조회분 1.4%였다. 2. 甘草 추출물의 添加量이 많을수록 Farinogram 측정에 있어서 수분 흡수율, 도착시간, 반죽 형성시간과 기계내성지수의 값은 커졌으며 안정도는 낮아졌다. 바로리메타값은 크게 영향을 받지 않았다. 3. Extensograph 측정에 있어서는 甘草 추출물의 添加量이 증가함에 따라 신장저항도는 증가되고 신장도는 줄어들었다. 4. Amylograph 측정에 있어서는, 호화개시온도나 최고점도시 온도는 농도의 변화에 큰 차이가 없었으나, 최고점도는 甘草 추출물이 1.0% 이상시 크게 떨어지는 현상을 보였다. 5. 발효 팽창은 添加劑 증가시 감소되는 경향을 보였으며 비용적도 감소하였다. 6. 빵의 내관은 添加劑 증가시 더욱 거칠어지고, 조밀해졌으며 firmness의 증가가 뚜렷하였다. 7. 관능검사는 添加劑의 증가시 낮은 점수를 받았다. This study is to investigate the effect on the quality and properties of bread affected by licorice extract addition. The measurements of the farinograph, extensograph and amylograph on dough are cried out. And the evaluations of volumetric changes during fermentation, shape of bread crumb, sensory test, firmness are obtained results are as follows. 1. Proximate compositions of licorice extract are as follows : moisture 73.7%, crude protein 4.1%, crude lipid 2.8%, crude ash 1.4%. 2. Water absorption, arrival time, dough development time, mechanical tolerance index and valorimeter value are increased but stability is decreased with the addition of licorice extract. 3. The resistance to extension is increased but extensibility is decreased with the addition of licorice extract. 4. The initial pasting and highest viscosity temperatures are not affected but the highest viscosity is steeply decreased over 1.0% addition of licorice extract. 5. The volume of dough during fermentation and specific volume of bread is decreased with the addition of licorice extract. 6. The grain of bread is to be rough and irregular and the firmness is increased with the addition of licorice extract. 7. The records of sensory test are decreased with the addition of licorice extract.

Inconel 718의 고온선삭가공에서 세라믹 공구의 노치 마모 특성에 관한 연구

김진남,이정윤,최규헌 三陟大學校 産業科學技術硏究所 1998 産業科學技術硏究論文集 Vol.3 No.-

Plasma hot machining for Inconell 718 has performed to improve the depth of cut notch wear of ceramic tools(SiC whisker reinforced alumina). In this study, wear characteristic of ceramic tools under plasma hot machining were examined, and compared with conventional machining of Inconel 718. The depth of cut notch wear of ceramic tool was significantly reduced under plasma hot machining test.

플라즈마를 이용한 고온 선삭가공에서 가공표면 품질에 미치는 용융스패터의 영향

김진남,최규현 三陟大學校 産業科學技術硏究所 1999 産業科學技術硏究論文集 Vol.4 No.-

The Plasma Hot Machining(PHM) has been well known to improve the machinability of high hardness material. However, one of the main disadvantage of Plasma Hot Machining is the contamination of machined sufaces by melting spatter of the work piece. In this paper we investigate the effect of plasma heating point on machining suface contamination.