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( Sanjit Saha ),( Milan Jana ),( Pranab Samanta ),( Naresh Chandra Murmu ),( Joong Hee Lee ),( Tapas Kuila ) 한국복합재료학회 2016 Composites research Vol.29 No.4
A self-charging supercapacitor is constructed through simple integration of the energy storage and photo exited materials at the photo electrode. The large band gap of NiO//Fe<sub>3</sub>O<sub>4</sub> heterostructure generates photo electron at the photo electrode and store the charges through redox mechanism at the counter electrode. Sulfanilic acid azocromotrop/reduced graphene oxide layer at the photo electrode trapped the photo generated hole and store the charge by forming double layer. The solar supercapacitor device is charged within 400 s up to 0.5 V and exhibited a high specific capacitance of ~908 F/g against 1.5 A/g load. The solar illuminated supercapacitor shows a high energy and power density of 33.4 Wh/kg and 385 W/kg along with a very low relaxation time of ~15 ms ensuring the utility of the self charging device in the various field of energy storage and optoelectronic application.
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이은성 ( Eun Seong Lee ),황유진 ( You Jin Hwang ),박제권 ( Jae Kweon Park ) 한국키틴키토산학회 2014 한국키틴키토산학회지 Vol.19 No.4
The major active ingredient in Turmeric is known to be curcumin that was estimated to be about 2% in dry weight of the root of Turmeric. Despite knowing various biological activities of curcumin, less is known about the efficient process for the purification of curcumin. Therefore we focused on the purification of curcumin from the extract of Turmeric. High molecular weight chitosan (HMWC) and self-assembled chitosan (SAC) formed using HMWC by oxidative reaction with ammonium persulfate were used as matrix or precipitant for the purification of curcumin. Herewith we describe a simple and reproducible approach for the purification of curcumin from the extract of Turmeric.
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김정구(Jeongku Kim),황재호(Jeaho Hwang),변오성(Ohsung Byun),조성식(Sungshik Cho) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
This paper is related to SAC(Steering Automatic Centering) system. In generally, MDPS system is operated by the Driver. In case of driving the vehicle by driver, the Steering power consists of the driver power and the assistant power. In this system, if the Driver would like to array steering wheel to center- direction, the driver does not rotate steering wheel, Because of operating steering- motion automatically. Also, SAC system has the function for centering steering wheel. The detail description is following that. the SAC system is not contacted by the driver power to work steering wheel motion, only MDPS system have an effects on automatic steering motion. If it is completed to control steering wheel to the center area. The Self- Aligned torque is affected by Vehicle tire friction. So vehicle does not last to longitude direction , the steering wheel does not keep center position. So, This problem will be solved by this paper, we are suppose to the control-method s for SAC.
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공공봉사동기(PSM)와 조직분위기 간의 관계에서 조직몰입의 매개효과 그리고 인간관계의 매개효과: 부산광역시 공무원을 중심으로
강동철 ( Kang Dong Chul ) 경희대학교 사회과학연구원 2017 社會科學硏究 Vol.43 No.3
본 연구에서는 지자체의 조직분위기에 가장 큰 영향을 미칠 수 있는 지방공무원의 동기부여가 무엇인지 확인하고자 하였다. 지방공무원에게 특별히 부여된 동기를 확인할 수 있도록 부산광역시에 위치한 한 지방자치단체에 근무 중인 지방공무원 218명을 대상으로 실증 분석하였다. 이러한 실증 분석을 통하여 지방공무원의 공공봉사동기 고취에 기여하고자 노력하였다. 이러한 노력의 일환으로 본 연구에서는 공공봉사동기가 조직분위기에 영향을 미치게 될 때, 조직몰입과 인간관계의 매개효과를 검토할 수 있도록 구조방정식모델을 설계하였다. 구조방정식모델링을 실시한 결과, 규범적 동기_공익을 위한 헌신은 조직몰입의 매개효과를 통해 조직분위기에 영향을 미칠 수 있었으며, 정서적 동기_측은지심은 인간관계의 매개효과를 통해 조직분위기에 영향을 미칠 수 있었다. 하지만, 자기희생은 조직몰입의 매개효과뿐만 아니라 인간관계의 매개효과 때문에 조직분위기에 영향을 미칠 수 있었다. 그러므로 지방공무원에게 공공봉사동기는 지자체의 조직분위기에 중요한 선행요인이 될 수 있음을 알 수 있다. 즉, 공직에 공공봉사동기를 느껴 지방공무원이 되었다면, 지자체의 조직분위기에 참여적일 수 있다는 것이다. This study contributes to the current body of work in this area by investigating the responses from 218 local public servants from one local government in Busan Metropolitan City to determine which specific motivation of local public servants has the largest effect on organizational climate of local government. This study also has conducted Structure Equation Modeling to review the mediated effect of the Organizational Commitment and Human Relations in the process from Public Service Motivation to Organizational Climate. According to the results, Commitment to the public interest was shown to influence Organizational Climate through the mediated effect of Organizational Commitment. On the other hand, Compassion was shown to influence Organizational Climate through the mediated effect of Human Relations. However, Self-Sacrifice was shown to influence Organizational Climate through the mediated effect of Organizational Commitment, and Human Relations. Therefore, Local public servants' Public Service Motivation is a relevant factor in Organizational Climate. Local public servants who feel motivated with their public sector provide higher levels of Organizational Climate.
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