• 한국건축시공학회지
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• 제9권3호
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• pp.51-58
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• 2009

The intention of this study is to analyze safety consciousness of construction labors in Gawang-Ju region. According to Korea Occupational Safety & Health Agency, the rate of disaster in construction industry is very high comparing with other fields. Most of all, the consciousness of construction labors is very important because accidents are caused from it mainly. For this reason, it is necessary to recognize safety consciousness of labors who directly work in construction field. For decreasing the rate of disaster in construction, I examined and analyzed safety consciousness of construction labors and then, groped improvement of safety activity. Finally, this study deducted improvement of safety activities and management.

• 한국표면공학회지
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• 제32권3호
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• pp.253-256
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• 1999

Wet plating has been initiated and developed as a major surface finishing technology as of the long customized and highly productive process until now. As the external compression by virtue of the environmental preservation becomes stricter, there has been new move to adapt dry plating line instead of conventional wet plating one in domestic surface finishing industry. Dry plating, so-called, plasma surface technology has been developed in semiconducting industry and becomes a key technology to be useful as an alternative to wet plating in surface finishing industry. The historical progress of domestic surface finishing industry was outlined with the background on the adaptation of three dry plating processes-plasma spraying, plasma nitriding and ion plating. The present status of domestic industrial activity was covered on major alternative to wet plating.

• 한국토양비료학회지
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• 제47권4호
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• pp.299-305
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• 2014

In this paper, fractional factorial screening design (FFSD) and central composition design (CCD) were used to optimize the medium components for producing chitinase and gelatinase by Lysobacter capsici YS1215. Crab shell powder, nutrient broth and gelatin were proved to have significant effects on chitinase and gelatinase activity by FFSD first. An optimal medium was obtained by using a three factor CCD, which consisted of nutrient broth of $2.0gL^{-1}$, crab shell powder of $2.0gL^{-1}$ and gelatin of $1.0gL^{-1}$, respectively with the highest chitinase activity ($3.34UmL^{-1}$) and gelatinase activity ($14.15UmL^{-1}$). This value was 3.76 and 1.11 fold of the chitinase and gelatinase activity, respectively, compared to the lowest productive medium in the design matrix. In investigating potential of these enzymes partially purified from L. capsici YS1215 for biotechnological use, the crude enzymes was found to be inhibition against pathogenic fungal mycelia: Colletotrichum gleosporioides, Phytophthora capsici, and Rhizoctonia solani. In this study, we demonstrated the optimal medium for producing the chitinolytic and gelatinolytic enzymes by the strain YS1215 and the role of their enzymes that may be useful for further development of a biotechnological use and agricultural use for biological control of phytopathogenic fungi.

• 한국산학기술학회논문지
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• 제18권1호
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• pp.523-529
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• 2017

본 연구는 종합병원으로 운영되고 있는 지방공사의료원들과 민간 비영리법인 종합병원들 간의 자본과 인력의 활용도와 경영성과를 비교하여, 지방의료원들이 재정자립을 위한 효율적이고 합리적인 생산성 제고방안을 모색하고자 하는데 목적이 있다. 분석자료는 2011년부터 2014년까지의 지방공사의료원과 민간 비영리법인 종합병원의 투자효율 산출을 위한 세부계정과목이 구분된 결산자료로, 투자효율 및 경영성과 지표는 총자본 투자효율, 생산활동에 투자된 유형고정자산 투자효율, 인건비 투자효율, 부가가치생산성, 사업수익 이익률을 비교 분석하였다. 분석 결과, 투자효율인 총자본 투자효율, 생산활동에 투자된 유형고정자산 투자효율, 인건비 투자효율은 민간 비영리법인 종합병원이 지방공사의료원보다 유의하게 높았는데 특히 생산활동에 투자된 유형고정자산 투자효율의 차이가 매우 컸다. 그리고 경영성과에서는 지방공사의료원이 민간 비영리법인 종합병원에 비해 사업수익 부가가치율은 높은 반면에 사업수익 이익률은 유의하게 낮았다. 또한 투자효율과 부가가치생산성이 사업수익 이익률에 미치는 영향을 살펴본 결과, 지방공사의료원은 생산활동 유형고정자산 투자효율과 인건비 투자효율, 민간 비영리법인 종합병원은 인건비 투자효율이 유의하게 영향을 미쳤으며, 인건비 투자효율의 영향이 가장 컸다. 따라서 지방공사의료원들이 자립경영을 위한 생산성 제고방안으로 수익발생과 관련된 자산의 활용도, 그리고 인건비와 관련하여 인력의 활용도와 적정성에 대한 검토의 필요성이 제기된다.

• 한국미생물·생명공학회지
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• 제7권4호
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• pp.217-223
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• 1979

자연계에서 분리한 곰팡이 중 전분을 잘 당화하며 산생성력이 강한 한 균주를 선별하여 현재 막걸리 제국용 균종으로 많이 사용되고 있는 백국균(Aspergillus Kawachii)과 비교하여 각종 성분을 경시적으르 분석한 결과는 다음과 같다. 1) 분리균중 당화력 및 액화력이 비교적 강한 M-80을 공시균으로 선별하였다. 2) 백국균과 분리균의 $\alpha$-amylase 역가는 140W. V.로 비슷하였으나 $\beta$-amylase 역가는 54 A. U. 로 분리균이 높았다. 3) acid protease 역가는 분리균이, alkaline pro-tease 역가는 백국균이 높았다. 4) 총산, ethanol, fusel oil의 생성량은 분리균이 약간 높았으며 methanol 함량은 비슷하였다. 5) 술덧중의 유리 아미노산의 함량은 분리균이 백국균보다 약 10%정도 높았으며, 15종의 유리아미노산이 확인되었다.

• 대한교통학회지
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• 제21권4호
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• pp.113-132
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• 2003

본 연구는 강처분성의 가변수익규모 및 비방사적 자료포락분석기법을 이용해 조직유형이 다른 도시철도 운영기관인 서울시지하철공사(지방공기업)와 철도청의 수도권 전철부문(정부부처형 공기업) 및 부산교통공단(국가공단)의 연도별 생산적, 기술적 및 배분적 효율성 값을 추정한 다음, 이들 값에서 토빗회귀식의 추정결과를 이용해 조직유형과 궤도가동률과 같은 외부 요인들의 영향을 제함으로써 내부 요인인 생산활동만의 영향이 반영된 순생산적, 순기술적 및 순배분적 효율성 값을 구하였다. 또한 토빗회귀식의 추정결과로부터 세 도시철도 운영기관들의 조직효율성과 연도별 총효율성 값을 구하였다. 이 때 토시철도 운영기관은 노동, 전력, 전동차 및 유지보수와 궤도(또는 자본) 요소를 투입하여 전동차-km를 생산하는 기업형태로 상정되었으며, 분석에는 세 운영기관의 연도별 자료로 구축된 불균형통합자료가 사용되었다. 자료포락분석의 결과 생산적 효율성과 배분적 효율성은 평균적으로 서울시지하철공사가 가장 높은 반면, 기술적 효율성은 철도청의 수도권 전철부문이 가장 높은 것으로 나타났다. 그러나 생산활동만을 대상으로 추정된 순생산적 효율성과 순배분적 효율성은 오히려 부산교통공단이 가장 높은 반면, 순기술적 효율성은 철도청의 수도권 전철부문이 가장 높은 것으로 나타났다. 또한 이러한 순효율성들의 경우 외부 요인들의 영향이 배제됨에 따라 세 운영기관들의 차이는 상당히 감소하는 것으로 나타났다. 한편 조직효율성의 경우 비용을 극소화하는 조직유형은 지방공기업인 서울시지하철공사인 것으로 나타났으며, 이러한 조직효율성과 순생산적 효율성을 합한 총 효율성도 평균적으로 서울시지하철공사가 가장 높은 것으로 나타났다. 이러한 결과들은 도시철도 운영기관들의 경영상태에 대한 공정한 평가를 위해 외부 요인의 영향을 배제하는 방안의 시행과 기존 또는 신설될 도시철도 운영기관의 비용효율성을 제고하기 위해 지방공기업 또는 공단으로의 조직유형 개편의 필요성을 시사하고 있다.

• Journal of Forest and Environmental Science
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• 제33권1호
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• pp.8-21
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• 2017

The objective of this study is to identify the individual characteristics and the elements of social capital hence a suitable design of social capital reinforcement can be proposed to promote a sustainable community-based mangrove management. The research conducted in three villages that were selected based on mangrove ecological differences in Lampung Province, Indonesia. Qualitative data was collected through field observation and in-depth interviews with key informants. The results showed that the population in the three villages dominated on productive ages, worked as farmers, and less educated (only a half of the population had fulfilled the basic education standard of Indonesia). The study results also indicated that the social capital in the communities showed minimum condition of interpersonal attachment and cooperation. This condition was derived from the attitude of the people who only took personal benefit without concerning to others' welfare. Many programs conducted by government to ensure the conservation of mangroves were project-oriented with minor participation of community. The minor participation might also contributed to the minimum of social capital in the community. To improve social capital, the communities should strengthen mutual trust based on mutual benefit to increase members' participation in mangrove activity.

• 가정과삶의질연구
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• 제15권1호
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• pp.41-52
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• 1997

This paper explored the public issue on housework analyzed the policy and the law associated housework and developed the theorical model for its political program. This idea is dependent that the policy has priority over change of the social ideology. That policy contains a campaign and a education to be aimed to share of housework in order to make responsibility of men as well as women on family and work. Also it contains economic value estimates to quantify and value the non-wage work(childcaring homemaking etc.) in order to confirm its productive activity. It would assume the lawful form as like a social security or a pension. For example the Family Rights Law Tax Law and Social Security Act have to be reflected on the value of housework and to be secured the social status of provider. After all this work was useful to improve a wage and a social status of all women. As consistent policy and operation associated housework are poor in Korea it is difficult to develop theoric l model on this theme. On the range a political proposal on housework would be bound by family policy(evaluation of housework) and women's labor policy(housework support). So the policy intend to secure a family life to improve welfare of women and to equilibrate the family and the work.

• 생약학회지
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• 제37권2호통권145호
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• pp.85-91
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• 2006

The present study was undertaken to evaluate the effect of evening primrose oil (EPO) on the male sexual functions. EPO (daily 0.5 ml/mouse) was orally intubated for 28 consecutive days to experimental ICR mice, and same vol. of vehicle to control mice. On the 14th and 28th experimental day, the testis weight, number of complete intromissions and mating, serum testosterone and cGMP levels, prostaglandin leveIs of penile corpus cavernosum smooth muscle cells, and NO-productive activity of endothelial cells were determined. The weight of body and testis, the number of complete intromissions during the 3hour period were somewhat increased in EPO treated mice than those of control. The number of sperm-positive females and testosterone level in serum were increased in experimental groups. The serum cGMP level was significantly increased but the NO production of ionomycin-stimulated HUVEC cells was not affected when EPO was added into cultures. These results suggest that oral administration of EPO enhanced the sexual functions of male mice, and EPO could be developed as a tonic improving sexual functions.

• 한국시스템다이내믹스연구
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• 제5권1호
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• pp.49-71
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• 2004

Demand-side Management can be defined as'any utility activity aimed at modifying customers' use of energy to produce desired changes in the utility's load shape'. Customers benefit by being able to control energy costs and improve quality of life and become more productive. Utilities benefit from DSM's value as a resource that enhances asset utilization and reduces both fuel costs and environmental emissions. The scope of DSM includes load management through rate schedules and conservation by improving energy effciency and using electricity consumption effectively. This paper study the DSM resource evaluation and customer behavior analysis todesign the DSM Program plan in response to customer needs. We develop basic system dynamics model to analysis the customer behavior based on a survey research. The DSM Program participants in the Hi- efficiency Inverter, Electric motor and efficient lighting applicancies operating by Conservation program 2002 become the survey objects. DSM resource evaluation evaluate firstt the distribution potentialities of each machine and then forecast the degree of diffusion. We apply the system dynamic approach to simulate the dynamic DSM market situation at the domestic beginning. This model will give the energy Planner the opportunity to create different scenarios for DSM program planning. Also it will lead to increased understanding of the dynamic DSM market