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광역 통신망 환경에서의 클라이언트 - 서버 DBMS 구조 및 데이타 캐쉬
박기은(KiEun Park),강현철(HyunChul Kang) 한국정보과학회 1994 한국정보과학회 학술발표논문집 Vol.21 No.2A
지금까지 클라이언트-서버 DBMS에 관한 연구는 근거리 통신망을 통해 연결된 서버에 대한 클라이언트의 요청을 효과적으로 처리하기 위한 기법에 중점을 두어 왔다. 특히, 클라이언트에서 수행되는 트랜잭션에 필요한 데이타를 캐쉬하는 방법들이 많이 연구되어 왔다. 본 논문에서는 광역 통신망 환경에서의 클라이언트-서버 DBMS에 관하여 연구하였다. 광역 통신망 환경에서는 근거리 통신망으로 연결된 일정 지역의 클라이언트들이 원거리에 위치한 다수의 서버 중 동일 서버에게 동일 데이타를 요청하는 경우가 일반적이다. 본 논문에서는 이러한 특성을 고려하여 각 지역의 클라이언트들이 클라이언트 그룹을 이루고 그룹 내 클라이언트 간의 통신을 이용해 원거리 서버의 부담을 클라이언트들이 분담하는 형태의 클라이언트간 협동 구조를 바탕으로 한 광역 통신망 기반 클라이언트-서버 DBMS 구조를 제안한다. 그리고, 근거리 통신망 환경에서 적용되는 기존의 데이타 캐쉬 기법을 광역 통신망 환경으로 확장하는 방법을 제안한다.
박희일,이기은 한국관광정책학회 2001 觀光政策學硏究 Vol.7 No.2
This study examined the relationships between career satisfaction and job attitudes in a sample of 153 travel agent employees and the moderating effects of education in their relationships. Results showed that career satisfaction has significant effect on organizational commitment, turnover intention, career commitment, and work motivation and that education level has moderating effect on the relationships between career satisfaction and turnover intentions and between career satisfaction and career commitment. Finally, the implications and the limitations of this study were discussed.
Seong, Kieun,Kim, Kyongjun,Park, Si Yun,Kim, Youn Sang The Royal Society of Chemistry 2013 Chemical communications Vol.49 No.27
<P>Chemical imprinting was conducted on ZnO semiconductor films <I>via</I> a chemical reaction at the contact regions between a micro-patterned PDMS stamp and ZnO films. In addition, we applied the chemical imprinting on Li doped ZnO thin films for high performance TFTs fabrication. The representative micro-patterned Li doped ZnO TFTs showed a field effect mobility of 4.2 cm<SUP>2</SUP> V<SUP>−1</SUP> s<SUP>−1</SUP> after sintering at 300 °C.</P> <P>Graphic Abstract</P><P>We developed a new patterning method <I>via</I> chemical imprinting with an ammonia soaked PDMS stamp which is simple, cost-effective, carried out under ambient conditions, and has no residual layer. In addition, chemical imprinting was applied on Li doped ZnO thin films for high performance TFTs. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c3cc38021a'> </P>
12주 중재프로그램이 직장인의 심혈관질환 위험요인, 아디포사이토카인과 영양소 섭취에 미치는 영향
문기은 (Moon,Kieun ),박일근 (Park,Ill Keun ),조연상 (Jo,Yeon Sang ),장윤균 (Chang,Yun Kyun ),백윤미 (Paek,Yun Mi ),최태인 (Choi,Tae In ) 韓國營養學會 2011 Journal of Nutrition and Health Vol.44 No.4
Adipocytokines (adiponectin, leptin and resistin) are known to play a major role in development of cardiovascular disease (CVD) and intervention program is effective in reducing CVD risk factors. However, intervention program to improve the CVD risk factors including adipocytokines has been less studied. This study investigated the effects of 12-weeks worksite intervention program on cardiovascular risk factors, adipocytokines and nutrients intakes in industrial workers. 157 industrial male workers (32 metabolic syndrome (MS) subjects, 125 healthy subjects using age-matched stratified random sampling) received 5 face-to-face counseling based on their health profiles. Anthropometry, biochemical parameters and nutrients intakes were measured. The diagnosis of MS was adapted from modified NCEPATP III criteria (2001) and Asia-Pacific definition criteria (2000) for waist circumference (WC). After the intervention program, WC, BMI, SBP, insulin, leptin and intakes of total energy and fiber were significantly decreased (p < 0.05), while adiponectin was significantly increased (p < 0.05) in MS subjects. The WC, BMI, SBP, total cholesterol, LDL and HDL-cholesterol, HbA1c, leptin and intakes of total energy, protein and fat were significantly decreased (p < 0.05) and adiponectin was significantly increased (p < 0.05) in normal subjects. Multiple linear regression revealed that adiponectin was positively correlated with HDL-cholesterol (p < 0.01). Leptin was positively correlated with WC (p < 0.01), and resistin was positively correlated with HbA1c (p < 0.05) and intakes of total energy (p < 0.05), and negatively correlated with HDL-cholesterol (p < 0.05). The results of the 12 weeks intervention showed a positive impact on adipocytokines and nutrients intakes of industrial workers to reduce cardiovascular risk factors. Further research is needed to verify a tailored long-term worksite intervention program including adipocytokines as a protective factor for the CVD. (Korean J Nutr 2011 44(4): 292 ~ 302)