직장상황 임산부의 의복스타일과 직업유형이 호의도와 업무수행능력 평가에 미치는 영향

황선진,전호경 한국의류학회 1998 한국의류학회지 Vol.22 No.6

The Purpose of this study was to investigate the effects of maternity apparel style and job type on the likability and the occupational competence of pregnant working women. This study was 3^*2 factorial design. Independent variables of this study were maternity apparel style(feminine style, neutral style, and masculine style) and job type(assitant manager of bank and salesperson). Dependent variables were the likability and the occupational competence of the stimuli. One hundred eighty college females participated in the study, in which half of the subject viewed the stimuli as a salesperson and the other half as an assistant manager of bank. The results showed that maternity apparel style influenced the perception of likability(F(2, 174)=6.97, p<.001) and occupational competence(F(2,174) = 16.25, p<.001) significantly. Also Job type influenced the occupational competence(F(1,174)=3.94, p<.05) signifcantly. There was a significant interaction(F(2,174)=2.53 p<.10) between maternity apparel style and job type. In future researches, diverse job distinction other than the classification of being professional or non-being professional can be arranged to study the influence of job type. Also it is recommended to explore the interaction between the appearance cues except clothing and job type.

단축질소 제거공정에서의 N_(2)O gas 발생특성에 관한 연구

황선진,장현섭 경희대학교 자연과학종합연구원 2002 자연과학논문집 Vol.8 No.-

아산화질소는 생물학적 질소제거 공정에서 부산물로서 발생하는 지구온난화 가스이다. 용존산소, 체류시간, C/N비, 질산성 질소와 아질산성 질소의 축적과 같은 많은 인자가 폐수처리시스템에서 N_(2)O 방출을 좀 더 나은 해석을 위해서 연구되어 왔다. 유입 암모니아 농도는 500∼700㎎/ℓ이었고 수리학적 체류시간은 1.5일, 슬러지 체류시간은 20일로 하였다. 이때 암모니아 제거율은 90%이상이었고 단축질소제거공정에서 일반 질소제거공정보다 N_(2)O가 좀 더 많이 방출된다는 것이 이번 연구로 밝혀졌다. Nitrous oxide(N_(2)O) can be emitted as a by-product of nitrogen removal from wastewater. Many parameters such as the concentration of dissolved oxygen, retention time, C/N ratio as a limiting influent carbon source, the accumulation of nitrate or nitrate, have been investigated to gain a better understanding of N_(2)O gas emissions in wastewater treatment systems. The average ammonia oxidation efficiency was over 90% and the influent NH_(4)^(+)-N concentration was in the range of 500-700mg/ℓ. Hydraulic retention time(HRT) was 1.5days and solid retention time (SRT) was more than 20 days in all the bioreactors. A study on releasing patterns showed that higher N_(2)O emission was at a Shortcut Biological Nitrogen Removal process(SBNR) than a general nitrogen removal process.

액막법을 이용한 정수슬러지로부터의 알루미늄 회수 방법에 대한 연구

황선진,서상원 경희대학교 환경연구소 2002 環境硏究 論文集 Vol.11 No.-

The request of water treatment plant sludge's recycle is increased by increasing sludge due to growth of water treatment plant, sanctions of sludge disposal by law and international environment agreements and rising disposal cost. Therefore, this study's purpose is recovery of alum in sludge using acid treatment and liquid membrane. Aluminum was extracted out of sludge by acid treatment, optimum pH and reaction time were 3 and 10 min. Also pH was decreased with improvement of thickening. Extraction was the process of reaction of aluminum with MDEHPA. Under the operating conditions of reaction time=l0min, extractant concentration=15% and water phase : oil phase = 23, aluminum was selectively recovered. Regeneration was by sulfuric acid, optimum condition was that sulfuric concentration was 6N, Oil : Water of ratio was 9:l. To analyze result of heavy metal in recovered alum, it didn't occure to extract other metals and result of comparison of raw alum and recovered alum, it was similar tendency.

프롬프팅 러닝을 활용한 리뷰 텍스트 기반 추천시스템

황선진,강채원,이영훈 대한산업공학회 2023 대한산업공학회 춘계학술대회논문집 Vol.2023 No.5

DApp 사용자의 프라이버시 보호 강화를 위한 공개형 블록체인 플랫폼 보안구조 강화방안

황선진,고동현,박태우,최윤호 한국인터넷정보학회 2020 인터넷정보학회논문지 Vol.21 No.3

Along with the growth of Blockchain, DApp (Distributed Application) is getting attention. As interest in DApp grows, market size continues to grow and many developers participate in development. Many developers are using API(Application Programming Interface) services to mediate Blockchain nodes, such as Infura, for DApp development. However, when using such a service, there is a serious risk that the API service operator can violate the user's privacy by 1 to 1 matching the account address of the Transaction executed by the DApp user with the IP address of the DApp user. It can have an adverse effect on the reliability of public Blockchains that need to provide users with a secure DApp service environment. The proposed Blockchain platform is expected to provide user privacy protection from API services and provide a reliable DApp use environment that existing Blockchain platforms did not provide. It is also expected to help to activate DApp and increase the number of DApp users, which has not been activated due to the risk of an existing privacy breach. 블록체인의 성장과 함께 이를 기반으로한 DApp(Distributed Application)이 주목받고 있다. DApp에 대한 관심이 커짐에 따라 시장규모가 지속적으로 성장하고 있고 개발에 참여하는 개발자들이 늘어나고 있다. 많은 개발자들이 DApp 개발환경 구축의 어려움으로인해 Infura와 같이 블록체인 노드를 중개해주는 API(Application Programming Inteface) 서비스를 이용하고 있지만, 중개 API 서비스를이용할 경우 API 서비스 운영자는 DApp 사용자로부터 전달받은 트랜잭션의 계좌 주소와 DApp 사용자의 IP 주소의 1:1 매칭을 통해사용자의 프라이버시를 침해할 수 있는 심각한 위험이 존재한다. 따라서, 본 논문에서는 기존 노드 탐색 프로토콜의 활용과 이를 이용한 암호화를 통해 사용자의 프라이버시를 보호할 수 있는 공개형 블록체인 플랫폼 구조 강화방안을 제안한다. 제안하는 구조를통해 DApp 사용자는 API 서비스 운영자가 자신의 개인정보를 식별하지 못하게 방지함으로써 프라이버시를 보호할 수 있다. 기존의공개형 블록체인 플랫폼들이 제공해주지 못했던 신뢰성 있는 DApp 사용 환경을 제공해줌으로써 프라이버시 침해 위험으로 인해 활성화되지 못하였던 DApp의 활성화와 사용자의 증가에 기여할 수 있을 것으로 기대된다.

서해를 여는 사람들

황선진 새얼문화재단 1995 황해문화 Vol.6 No.-

프롬프팅 러닝을 활용한 리뷰 텍스트 기반 추천시스템

황선진,강채원,이영훈 한국경영과학회 2023 한국경영과학회 학술대회논문집 Vol.2023 No.5

창상피복재의 성능 평가를 위한 가이드라인 마련 연구

황선진,염태경,방지영,허지연,이창형,이병영,강신정,김혁주 한국에프디시규제과학회(구 한국에프디시법제학회) 2013 FDC법제연구 Vol.8 No.2

THM(trihalomethane) 제거 대책에 관한 연구

황선진,박중현,이석헌 대한상하수도학회 1993 상하수도학회지 Vol.7 No.2

An experimental study was conducted to investigate the effects of chlorine dioxide and ozone on reduction of THM(trihalomethane) formation. Precursor concentration, chlorine concentration, reaction time, pH, and temperature were governing compornents of THM formation. When other conditions are constant, THM formation increased linearly with precursor concentration increased. THM formation increased when pH increased from 5 to 9. In combined treatment with chlorine and chlorine dioxide, chlorine treatment after chlorine dioxide treatment made less THM than any other case does. Ozonation reduced THMFP(THM formation potential) of THM precursor. THMFP decreased exponentially with reaction time increased. Also biodegradability of humic acid was enhanced by ozonation.

하수슬러지의 산과 초음파 처리에 따른 ECP(exocellular polymers)의 거동이 탈수성과 침강성에 미치는 영향

황선진,정규호,황규대 대한상하수도학회 2002 상하수도학회지 Vol.16 No.6

The effects on dewaterability and settlability of wastewater sludge according to acid and ultrasonic pretreatment which was expected to change ECP (exocellular polymers) compounds in the sludge and bulk solution was investigated. Though ECP which attached to the sludge could stimulate coagulation of sludge particles by bridging effect, but ECP in the bulk solution deteriorated dewaterability and settlability of the sludge on the contrary. That is as the pH of the solution was decreased to 3 gradually by acid treatment, proportionally ECP in the bulk solution was attached to the sludge flocs and resulted in improvement of dewaterability and settlability of the sludge. In case of ultrasonic pretreatment, with proportional to the intensity and duration of ultrasonic application, ECP was detached and extracted from sludge flocs and these phenomena deteriorated dewaterability and settlability. Also because of the increasement of minute sludge particles according to ultrasonic, dewaterability became so much the worse.