濕式法에 依한 輝安鑛으로부터 三酸化 안티모니의 製造에 關하여

오재현,김준수,고인용,정원용 연세대학교 산업기술연구소 1979 논문집 Vol.11 No.1

An investigation on the production of high purity Sb₂O₃was carried out by means of the acid leaching process from the roasted ore of stibnite. The approach of these studies has been to investigate purity, particle size, recovery and crystal structure of Sb₂O₃obtained through the subsequent treatments of leaching, hydrolysis and neutralization under various conditions. The results obtained in these experiments are summarized as follows; 1) It was possible to use dilute hydrochloric acid to extract Sb₂O₃from the roasted stibnite. Because of the prior roasting treatment, the contamination of impurities could also be reduced in the final products. 2) The rate of extraction of Sb₂O₃from the roasted stibnite was increased concentration of hydro-chloric acid as increased amount of addition of the acid. 3) The yield of Sb₂O₃obtained by hydrolysis of SbCl₃was increased with increasing temperature of hydrolysis. 4) The crystal structure of Sb₂O₃obtained by hydrolysis of SbCl₃at 20℃(room temperature) was confirmed as a orthorhombic crystal structure which is the same as that of valentinite. The recovery of Sb₂O₃from the roasted ore appeared to be nearly 100% under optimum conditions.

탄소/에폭시 복합재판의 압축강도 두께효과에 대한 연구

이정환,공창덕,오경원,Soutis, C. 朝鮮大學校 機械技術硏究所 2004 機械技術硏究 Vol.7 No.1

본 연구에서 복합재료의 압축강도에 대한 두께 효과가 〔0₄〕ns,〔45/0/-45/90〕ns and 〔45n/0n/-45n/90n〕s (n = 2 to 8)등의 적층방법을 이용하여 체계적인 실험을 통해 조사되었다. 엇교차 대칭 복합재판의 파괴강도에 대한 적층순서효과도 조사되었다. 이를 위해 2종류의 다른 스케일링을 갖는 (1) 플라이레벨 기법인 〔45n/0n/-45n/90n〕s과 (2)서브라미네이트-레벨기법인 〔45/0/-45/90〕ns가 적용되었다. 일방향 적층시편 〔0₄〕ns과 플라이레벨인 〔45n/0n/-45n/90n〕s에는 분명한 두께효과를 나타내었다. 그러나 서브라미네이트레벨인. 〔45/0/-45/90〕ns의 압축강도는 시편의 두께의 변화에도 불구하고 별 영향을 나타 나지 않았으며,서브라미네이트-레벨 시편에서 구한강도가 플라이-레벨 시편에서 구한 강도보다 약간 높았다. 측정된 파괴강도는 예측 값과 비교되었다. In this study, the effect of laminate thickness on the compressive behaviour of composite materials was investigated through systematic experimental work using the stacking sequences, 〔0₄〕ns, 〔45/0/-45/90〕ns and 〔45n/0n/-45n/90n〕 s (n = 2 to 8). The stacking sequence effects on failure strength of multidirectional laminates were examined. For this purpose, two different scaling techniques were used: (1) ply-level technique 〔45n/0n/-45n/90n〕s and (2) sublaminate level technique [45/0/-45/90]ns. An apparent thickness effect existed in the lay-up with blocked plies, i.e. unidirectional specimens ([0₄]ns) and ply-level scaled multidirectional specimens (〔45n/0n/-45n/90n〕s). From the investigation of the stacking sequence effect, the strength values obtained from the sublaminate level scaled specimens were slightly higher than those obtained from the ply level scaled specimens. The measured failure strengths were compared with the predicted values.

빈곤계층의 소비패턴에 관한 연구: 2007년과 2008년의 변화 비교

정원오 ( Won Oh Joung ),이선정 ( Sun Jeong Lee ) 한국사회복지연구회 2011 사회복지연구 Vol.42 No.1

본 연구는 빈곤가구의 소비패턴이 단일 유형이 아니라 여러 유형으로 나타나고 있으며, 그러한 차이에 어떤 요인들이 관련되어 있는지 분석하였다. 연구결과 빈곤계층을 하나의 소비유형으로 단순화 할 수 없으며, 사회 환경의 변화에 따라 필수품의 목록이 변화하였고, 변화의 양상은 라이프사이클이 상이한 가구원의 구조에 영향을 받는 것으로 파악되었다. 소비패턴의 유형은 여섯가지로 분류되었는데, 각각은 교육비지출형, 식료품지출형, 사회적관계지출형, 교통통신비지출형, 의료비지출형, 주거비지출형으로 명명할 수 있었다. 각 소비패턴유형에 영향을 미치는 요인을 분석하기 위하여 다항로짓분석을 실시한 결과 빈곤가구의 경제적 특성보다는 가구특성, 가구주특성, 사회적 특성이 유의미한 영향을 미치는 것으로 확인되었다. 연구결과 빈곤가구의 다양한 욕구를 확인했고, 소비패턴의 영향 요인이 경제적인 요인보다는 가구의 인구사회학적 요인이 더 큰 영향을 미치고 있음을 감안할 때, 한시적인 소득지원에 무게를 두고 있는 한국의 빈곤정책은 가구의 욕구에 기초하여 다양하게 접근해야 할 필요성이 있다. This study analyzes the consumption patterns of the poor households. The first objective of this analysis is to show that the group living in poverty get not one consumption pattern but several types of consumption patterns. The second objective is to understand what factors effect the consumption patterns. This study use the data of Korea Welfare Panel Study in 2008 & 2009. In oder to achieve first goal, We conduct factor analysis and cluster analysis. And to achieve second goal, We conduct multinomial logistic Analysis. Major findings are as follows. First we find six patterns of consuming types of the poor households. They are education oriented consuming type, diet oriented type, social network oriented type, transportation-communication oriented type, health & medical oriented type, and housing expenditure oriented type. Second we find these consumption patterns are effected by not economic factors but socio-populational factors, especially by life cycle of members of household.

Poster Session 3 / N-16 : Screening of chemokine receptor interacting protein by two hybrid system

(Jee Won Joung),(Sook Yeon Lee),(Seung Hwa Hong),(Won Shin),(Ho Jung Oh),(Young Ju Choi),(Jae Ho Jin),(Seon Mi Kim),(Hong Ki Min),(Yeo Won Sohn),(Jung Woo Kim) 한국생화학분자생물학회 (구 한국생화학회) 1999 생화학분자생물학회 춘계학술발표논문집 Vol.- No.-

Human Brain Pyridoxal-5`-phosphate Phosphatase: Production and Characterization of Monoclonal Antibodies

Dae Won Kim,Won Sik Eum,Hee Soon Choi,So Young Kim,Jae Jin An,Sun Hwa Lee,Eun Joung Sohn,Seok Il Hwang,Oh Shin Kwon,Tae Cheon Kang,Moo Ho Won,Sung Woo Cho,Kil Soo Lee,Jin Seu 한국생활환경학회 2005 BMB Reports Vol.38 No.6

기초지방자치단체 사회복지 재정 분석 : 서울시 구로구 예산서(2000년~2007년) 사례

정원오 ( Won Oh Joung ),김성기 ( Sung Kee Kim ) 한국사회복지연구회 2009 사회복지연구 Vol.40 No.2

비정규직 직업이동의 동태적 특성과 영향요인

정원오 ( Won Oh Joung ),김연아 ( Yeon A Kim ) 한국사회복지연구회 2015 사회복지연구 Vol.46 No.1

본 연구는 한국복지패널 데이터(2~8차)를 활용하여 비정규직 직업이동의 실태와 동태적 특성을 파악했다. 2006년부터 2012년까지 7년간의 종단 자료를 활용해 사건사 분석을 수행했으며, 다항로짓 회귀모형을 적용하여 비정규직 탈출에 미치는 영향요인을 검토했다. 연구 결과, 관찰시점에서 비정규직은 상당히 역동적으로 이동하고 있는 것으로 나타났다. 그러나 이러한 비정규직의 생존율 감소경향은 정규직으로의 긍정적 전환보다는 실업과 미취업 등 불안정한 직업이동을 반복한 가능성이 높은 것으로 평가됐다. 비정규직 근무기간은 비정규직 탈출에 부정적으로 영향을 미치는 것으로 파악됐다. 비정규직 근무기간이 길어질수록 정규직으로 전환하는 확률이 낮아졌고, 통계적으로 유의미하였다. 이는 비정규직 경험이 숙련을 향상시켜서 정규직으로 이동하는 가교가 된다는 일부의 주장보다는, 비정규직 경험 자체가 함정으로 작용하여 정규직으로 이동을 방해한다는 연구결과들을 지지하는 결과이다. 이상의 검토 결과, 비정규직의 직업이동 양상은 정태적이라기보다 상당히 동태적이어서 비정규직법과 같이 기간을 제한하는 방식으로는 정책적 실효성을 거두기 어려울 것으로 판단된다. 비정규직을 벗어나는 사람들의 상당수는 정규직으로의 전환이라기보다 실업 혹은 미취업 상태로 전환될 가능성이 높고, 특히 비정규직 5년차의 경우 대부분 실업으로 전환되는 경향을 고려하면 고용의 안정화에 더 초점을 맞출 필요성이 있다. This study examines dynamics of employment changes in Korea, focusing nonstandard employment duration and it`s determinants by event history analysis. We use the data that is Korean Welfare Panel(KOWEPS) from 2007 to 2013, and analyse multiple logistic regression, because we want to divide the event. The events that nonstandard employee change the job positions are multifarious. We divide the event three types. The first type is to be unemployed, the second type is to have job that is standard employment, and the third type is to do business on his own. The events of second type are positive change, and the determinants of that event are important. The major findings are as followings. Above all, non-regular workers have changed their jobs very frequently in our observational period. But the dynamics of non-regular worker`s job mobility have not been all positive. They sometimes have been changed as regular worker, but some more times they have been changed as the unemployed. One of the determinants of the nonstandard employment duration is how long they have employed as non-regular worker. This means that the experience of the non-regular work don`t give the chance to change as regular worker, but obstruct changing as regular worker.

Human Brain Pyridoxal-5'-phosphate Phosphatase: Production and Characterization of Monoclonal Antibodies

Kim, Dae-Won,Eum, Won-Sik,Choi, Hee-Soon,Kim, So-Young,An, Jae-Jin,Lee, Sun-Hwa,Sohn, Eun-Joung,Hwang, Seok-Il,Kwon, Oh-Shin,Kang, Tae-Cheon,Won, Moo-Ho,Cho, Sung-Woo,Lee, Kil-Soo,Park, Jin-Seu,Choi, Korean Society for Biochemistry and Molecular Biol 2005 Journal of biochemistry and molecular biology Vol.38 No.6

We cloned and expressed human pyridoxal-5'-phosphate (PLP) phosphatase, the coenzymatically active form of vitamin $B_6$, in Escherichia coli using pET15b vector. Monoclonal antibodies (mAb) were generated against purified human brain PLP phosphatase in mice, and four antibodies recognizing different epitopes were obtained, one of which inhibited PLP phosphatase. The binding affinities of these four mAbs to PLP phosphatase, as determined using biosensor technology, showed that they had similar binding affinities. Using the anti-PLP phosphatase antibodies as probes, we investigated their cross-reactivities in various mammalian and human tissues and cell lines. The immunoreactive bands obtained on Western blots had molecular masses of ca. 33 kDa. Similarly fractionated extracts of several mammalian cell lines all produced a single band of molecular mass 33 kDa. We believe that these PLP phosphatase mAbs could be used as valuable immunodiagnostic reagents for the detection, identification, and characterization of various neurological diseases related to vitamin $B_6$ abnormalities.

The Effects of Joint Mobilization with Combined Exercise Therapy of Sling on Post-traumatic Adhesive Capsulitis Patient: A Case Report

권원안,김연정,권혜미,김은지,박우경,신혜원,오정익,우정희,이다혜,이은정,정은주,정재영,정현경,최보영,허은영,이재홍,Kwon, Won-An,Kim, Youn-Joung,Kwon, Hye-Mi,Kim, En-Ji,Park, Woo-Kyung,Shin, Hye-Won,Oh, Joung-Ik,Woo, Joung-Hee,Lee, Da-Hye,Lee, En-young Korea Proprioceptive Neuromuscular Facilitation As 2012 PNF and Movement Vol.10 No.2

본 연구는 43세 남성 환자의 관절가동술과 슬링을 이용한 유착성 관절낭염 환자의 치료사례를 조사하여 그 과정과 결과를 알아보고자 하였다. 어깨통증장애지수(shoulder pain and disability index) 측정과 어깨관절의 굽힘(flexion), 벌림(abduction), 바깥돌림(external rotation), 안쪽돌림(internal rotation)에 대한 관절가동범위를 측정하여 비교하였으며 견관절 주위에 비스테로이드 소염진통 주사 1회, 약물치료를 병행하며 주 3회 8주간 보존적인 물리치료인 온습포(hot pack)와 간섭파(ICT), 관절가동술, 그리고 슬링을 이용한 운동치료를 실시하였다. 결과는 관절가동술과 슬링운동치료의 적용이 유착성 관절낭염 환자의 통증을 줄이고 관절가동범위를 증진시키는데 효과가 있는 것으로 판단된다.

저소득계층의 직업훈련효과 결정요인에 관한 연구

정원오 한국사회복지연구회(서울대학교 사회복지연구소) 1999 사회복지연구 Vol.14 No.1

The purpose of this study is to see the job training effects and the factors that have influence on it. To accomplish this purpose, this study divides the job training effects into three parts: trainee's productivity, probability of employment, and level of income. Determining mechanism of the three job training effects will be compared each other. There are two kinds of factors that influence job training effects in many theoretical and empirical studies: internal factors and external factors of the job training programs. The internal factors are composed of total training time, types of administration, and occupational training types. The external factors are the characteristics of the individual and labor market. The former are consisted of age, educational attainment, sex, and family status, and the latter are of types of industry, types of occupation, firm size, and unionization. The major findings are: (1) Among the internal factors, total training time and occupational training types influenced trainee's productivity. Among the external factors, only age was found to promote productivity significantly. (2) All internal factors raised the probability of employment significantly. Among the external factors, sex and family status were significant factors. (3) None of internal factors influenced the level of income significantly, but labor market factors were found to influence trainee's income significantly. After the training programs, those who had a job in manufacturing, had lower income than those Who found a job in sales or service. The larger the firm size was, the higher the trainee's income was. (4) The total training time was a factor very significant in promoting productivity, and less significant for employment probability, but was not significant for income. The occupational training types was a very significant factor for employment probability and was also a significant factor for promoting productivity, if not so significant a factor as for employment probability, but was not a significant factor for income. The types of administration of training programs did not affect the productivity and income, but influenced employment probability significantly. The trainee's age influenced productivity, and positively affected their income, but did not influence employment probability. The trainee's sex and family status influenced only employment probability.