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Chung, Sung Yun,Kim, Sunyoung,Lee, Ju‐,Hyuck,Kim, Kyongjun,Kim, Sang‐,Woo,Kang, Chong‐,Yun,Yoon, Seok‐,Jin,Kim, Youn Sang WILEY‐VCH Verlag 2012 ADVANCED MATERIALS Vol.24 No.45
<P>An all‐solution‐processed flexible piezoelectric nanogenerator, composed of polycrystalline ZnO thin film and functional polymer layers such as P3HT/PCBM and PEDOT:PSS, generates energy through a mechanical rolling and muscle stretching system. On page 6022, Youn Sang Kim, Sang‐Woo Kim, and co‐workers show that this all‐solution‐processed nanogenerator is feasible as a piezoelectric patchable device and is promising for use in future energy harvesters such as wearable human patches and mobile electronics. </P>
컴퓨터 구조 교육을 위한 Verilog를 사용한 모델 연구
윤상균 서원대학교 응용과학연구소 2001 응용과학연구 Vol.10 No.1
The best way to learn abount computer architecture is to design and build one. However, it is very difficult, time-consuming and costy to build it. Fortunately, HDL such as Verilog and VHDL provides us with a means of describing a digital system at a wide range of abstract levels. It is very useful to use HDL in order to understand computer architecture concept. In this paper, we describe a simple processor in four levels of model using Verilog and evaluates what model is more suitable in aspects of consuming time and educational effect.
광대역 입력신호를 위한 선형 트랜스컨덕터와 Multiplier의 설계
尹暢焄,吳成根,辛烘圭,金東龍 全北大學校 1993 論文集 Vol.36 No.-
The linear transconductor and analog four-quadrant multiplier are designed. The DDA(differential difference amplifier) of new active component can be improved matching problems of external elements in op-amp application circuits. We have designed transconductor which have excellent linearity and is the most important block in DDA. And analog four-quadrant multiplier is designed using the designed transconductor and MOSIS 2㎛ design rule. We are simulated the linear transconductor and analog multiplier by SPICE program.
김석범,강복수,윤성호,황정희,이경수 韓國保健敎育.健康增進學會 2000 보건교육건강증진학회지 Vol.17 No.1
This study was conducted to examine health behaviors in hypertensive patients and the factors that would affect these healthy life-styles, and to provide basic data for effective and continuous hypertension control in private medical facilities. Among those patients diagnosed as hypertension who had visited the Department of Internal Medicine of Yeungnam University Hospital during the two month period from August 2 to September 30, 1999, the present study included 222 patients who were in more than one month after the initial diagnosis of hypertension and those who had hypertension for less than 10 years. Using a structured questionnaire, the present study was conducted by a self-administered survey method, and the obtained data were analyzed with t-test, χ2-test and one-way analysis of variance using the SPSS statistical program. The scores on knowledge related to hypertension were higher as the education level of a patient was higher(p〈0.05). As for occupation, those who performed office or management jobs showed higher scores than those who were into manufacturing jobs, and as for economic status, although those patients who were in middle class showed highest scores, however, no statistical significance was observed. The scores of knowledge on hypertension was higher when the family history hypertension was present(p〈0.05). The scores of health-related behaviors were higher with higher education level and higher economic status, higher in those with family history of hypertension, and higher in those with office or management jobs than those who had manufacturing jobs(p〈0.05). Blood pressure measurement on regular basis was performed most frequently in those who were between 50∼59 years old with 83.3% and was least frequent in those who were older than 70 years old with 50%(p〈0.05). The frequency of regular blood pressure measurement was higher with higher education level, higher economic status, higher in those with family history of hypertension, and the highest in those with management position with 93.5%, however, on statistical significance was observed. Changes in health-relaxed behaviors after hypertension diagnosis were higher with higher education level, higher economic status, and in those patients performed office or management work. In particular, diet change was observed in female and higher economic status and smoking cessation was observed in 60∼69 years old. Housewives and office workers or managers have taken exercise more regularly and those who had management jobs and had high scores on knowledge related to hypertension would participate health education program more actively. Thus, for improving health-related behaviors for continuous management of hypertension, changes in health-related behaviors can be followed through conduction health education to improve understanding of knowledge related to hypertension as the method of helping to improve changes in health life-styles in those with little education and those in low economic status.
윤대식,최준호,김상황 영남대학교 지역발전연구소 2001 영남지역발전연구 Vol.27 No.-
This research develops a model of travel mode choice for university students' commuting trips. A binormial logit model was found to be an appropriate approach. Data from students of Yeungnam University, collected in 1999, were used for empirical estimation of model parameters. The empirical results confirmed several behavioral aspects associated with travel mode choice for university students' commuting trips. The paper presents a discussion on implocations that can be inferred from the empirical results. Finally, future potential research questions are also discussed.
한국노동빈민의 빈곤과 사회적 배제의 관련성에 관한 실증적 연구
윤성호 한국사회보장학회 2005 사회보장연구 Vol.21 No.1
본 연구에서 한국노동빈민의 빈곤과 사회적 배제의 현황과 그 관련성을 실증적으로 분석하였다. 이를 위해 한국노동패널데이터(1~6차년도)의 개인자료와 가구자료를 연결해서 분석에 이용하였다. 상대적 빈곤개념을 중심으로 빈곤선을 설정하여 빈곤 규모를 추산하였고, 사회적 배제는 이론적 검토를 통하여 자료의 현실적 한계를 고려한 다섯 가지 차원으로 나누어 측정을 시도하였다. 빈곤선과 근로소득유무를 중심으로 비노동-빈민, 노동빈민, 비노동-비빈민, 노동-비빈민 등 네 집단으로 연구집단을 구분하였고, 사회적 배제의 하위차원을 소유차원, 소비차원, 교육차원, 사회적 관계와 참여차원, 생산차원 등으로 구분하였다. 본 연구의 분석결과는 각 집단 간의 빈곤과 노동여부 및 정도에 따라 사회적 배제의 정도가 차이가 있었고, 특히 소비차원과 소유차원의 차이가 다른 차원보다 컸다는 것이다. 그리고 사회적 배제의 연도별 중첩정도는 집단 간 유의한 차이를 보이고 있었고, 생산차원과 소비차원, 교육차원과 소유차원의 중첩정도는 노동빈민의 빈곤기간에 유의한 영향을 주고 있었다는 것을 알 수 있었다. This empirical paper analyze the present states and relavency of poverty and social exclusion that the Korean working poor have. For these purpose, we used the KLIPS(Korean Labor and Income Panel Study, 1--6). This paper tried to set up a threshold for relative poverty and 5 dimensions of social exclusion. These dimensions of social exclusion consititute material well-being, consumption, education, social relation and participation, and product. The degrees of social exclusion dimensions significantly different within the poor group, the working-poor group, the jobless non-poor, and the working non-poor. In specially, the big differences appeared in the dimensions of consumption and product. And, the exclusion of multiple dimensions in each year appeared significantly differences within the groups. Finally, the period of poverty of the working poor was proportioned to the exclusion of product dimension, consumption dimension, education dimension, and material well-being dimension.