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손재석 김천대학교 2005 김천대학교 논문집 Vol.26 No.-
Computers, like all early childhood resources, should be used in developmentally appropriate ways with young children.
인터넷방송을 이용한 웹기반수업의 효율적 수행을 위한 연구 : 수준별 학습지원시스템 구축을 중심으로
손재석 김천대학교 2002 김천대학교 논문집 Vol.23 No.-
Web-based instruction means that instruction is done through internet.
인터넷방송을 이용한 방송전문인력의 교육과 대학 인터넷방송의 매스미디어로서의 역할에 관한 연구
손재석 김천대학교 2003 김천대학교 논문집 Vol.24 No.-
The research for the broadcasting speciality manpower education which uses the internet broadcasting and role as mass media of college Internet broadcasting. 1. The use present situation of a looking and listening user of Internet broadcasting. 2. The present situation of Internet broadcasting station of academic and present a n alternative to take a seat as mass media. 3. Presentation does a model about business speciality manpower training of a department of the broadcast related school subject in acad- emic Internet broadcast.
고윤희, 손재석 김천대학교 2007 김천대학교 논문집 Vol.28 No.-
A purpose of this study is to surver reality of self-supervsion in the early child-hood institute. The details are following subject 1. the parctical rate of a self-supervision in the type of the early childhood institute. subject 2. the parctical rate of a self-supervision in the scale of classes. subject 3. the parctical rate of a self-supervision in the major of the chief. subject 4. the parctical rate of a self-supervision in the working period. In an efficient practice of a self-supervision, it’s an important factor to make a condition for the chief end the teachers of the early childhood institute. Especially, it seems thet it is important for the chief of the early childhood institute to acquire a theology and practical ability of a self- supervision previousiy. And it appears that the executive rate of a self-supervision in the early childhood institute is superior to the care and breeding-oriented nursery school. An efficient a self-supervision must not be for a self-supervision itself but for an advance of teachers.
중소도시에 거주하고 있는 영유아의 건강상태 고찰 : 유치원, 어린이집을 중심으로
장경옥 ; 손재석 김천대학교 2012 김천대학교 논문집 Vol.32 No.-
The purpose of this research is to assess and understand the health conditions and lifestyle patterns of babies and toddlers who attend preschool and childcare centers in small and mid-sized cities, and provide structure and criteria for implementing the fundamental elements for early childhood education and development. A sample population focused on those attending preschools and child care centers in the Gimcheon area were assessed on June 20 through July 5, 2011 by means of questionaires. These children's health results were found to be higher than the national standard for normal 3, 4 and 5 year old children's health development. Findings also showed there was no difference in the level of partic-ipation in health fitness programs among mothers who held different vocations. This research showed that more children were going to childcare centers per year, which came out to be about 12.77 times more than preschool, which had a slightly lower number of 11.81 times. A slighter higher number of the children attending preschool had mothers who were stay-at-home moms (precisely 12.23 times more) as opposed to those whose mothers worked (11.19 times). Lastly, results showed that the children of mothers who did not work had a higher percentage of eating breakfast rather than those children whose mothers worked.
Trends and Correlates of Income Nonresponse: Forty Years of the US General Social Survey (GSS)
김지범,손재석,Peter K. Kwok,강정한,Faith Laken,Jodie Daquilanea,신희춘,Tom W. Smith 통계청 2015 통계연구 Vol.20 No.1
Using the 40 years of the US General Social Survey (GSS), we investigate the long-term trend and the correlates of family and personal income nonresponse. Family and personal income nonresponse has increased slightly by about 5 percentage points from 1974 to 2010 (9% to 13% in family income; 7% to 12% in personal income). While family income nonresponse was equivalently attributed to “Don’t Know” and “Refused,” personal income nonresponse was mainly attributed to “Refused.” We found very similar correlates of family and personal income nonresponse, such as being older, female, married, self-employed, those not answering the number of earners, uncooperative respondents, people living in the East, and those surveyed in recent periods. In addition, based on the interviewer’s evaluation, uncooperative respondents are less likely to response “Don’t Know” than “Refused” and respondents with poor comprehension are more likely to respond “Don’t Know” than “Refused.” Our findings suggest that we need to distinguish “Refused” from “Don’t Know” if we aim to better understand income nonresponse and to consider paradata to evaluate the cognitive processing of income nonresponse.
Whirling machine의 성능 개선을 위한 연구
이정기,양우석,손재석,한희덕,김한수,Lee Jung-Ki,Yang Woo-suk,Son Jea-seok,Han Hui-duck,Kim Han-soo 대한기계학회 2005 大韓機械學會論文集A Vol.29 No.10
In order to meet the increasing competitive pressures coupled with higher demands for component quality, whirling machines have been at the cutting edge of the automobile industry for more than 25 years. The hard whirling process can save on machining time and operation elimination. Hard whirling is done dry, without coolant. The chips carry away nearly all of the heat during cutting, leaving the workpiece cool and minimizing any thermal geometry variations. The surface finish and profile accuracy are close to grinding quality. Whirling machines usually consist of four major parts; 1) loading system that requires the necessary axial speeds, 2) head stock that needs high precision clamping and positioning system at the chuck and tailstock, 3) whirling unit that demands the high cutting speeds and cutting power fer cutting deep thread profiles and 4) unloading system that requires an easy workpiece unloading. Also, capabilities of the whirling machine can be improved by attaching a vision system to the machine. Most of whirling machines in Korean automobile industry are imported from the Leistritz company, Germany and the Hasegawa company, Japan. Tn this paper, a basic research will be performed to improve and enhance the existing whirling machines. Finally, a new Korean whirling machine will be proposed and developed.