• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2005년도 봄학술 발표회 논문집(II)
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• pp.101-104
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• 2005

It analyzed the supply status of fine aggregate and find the point of issue related alternative fine aggregate through researches and interviews. The conclusions of the study are as follows. 1. Ready mixed concrete manufacture used crushed fine aggregate (15.5$\%$) and recycled fine aggregate (1.5$\%$) for alternatives aggregate than 1.3$\%$ in 1991. It is not allowed to use a recycled fine aggregate in ready mixed concrete, but they used it. 2. All alternative aggregate are satisfied the Korean Standard, But they showed low properties of mortar compared to when it replaced with natural fine aggregate. So, it is needed to make another special Korean Standard to use alternative aggregate in normal concrete by mixing method to recover the workability and compressive strength.

• 한국학교ㆍ지역보건교육학회지
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• 제20권3호
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• pp.1-13
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• 2019

Objectives: The purpose of this study was to examine whether demographic and socio-economic characteristics, health behaviors and health status are related to academic achievement in Korean adolescents. Methods: Data from the 14th Korea Youth Risk Behaviors web-based Survey(KYRBWS) administered in 2018 were analyzed; 60,040 students in middle and high school participated in the survey. It was conducted frequency analysis, Rao-Scott chi-square test and multiple logistic regression analysis after adjusted for variables such as age, school grade. Results: The significant influencing factors on academic achievement were family economic status, living with parents, subjective health status, smoking experience, alcohol use experience, eating breakfast, sleeping, internet use during weekdays, depressive symptom(p<.001). The odds ratio for achieving higher academic achievement compared with those who never smoked was 1.50(p<.001). Conclusion: I found that students' undesirable health behaviors affect their academic performance. To improve academic achievement, I recommend intervention programmes such as school health promotion that reduce undesirable health related behaviors.

• 한국임상보건과학회지
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• 제4권3호
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• pp.603-614
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• 2016

Purpose. The purpose of this study was to provide basic data regarding the intention to use community care service based on special grading for dementia in the South Korean Society. Methods. A survey was conducted using a questionnaire adapted on the basis of literature review regarding the first to fourth grade under the long-term care insurance system for the aged from May 1 to 30, 2015 and a total of 272 questionnaires were statistically processed using SPSS 21.0. Frequency analysis, descriptive statistics, and cross-tabulation analysis were performed. The non-parametric type of test, ${\chi}^2$ test, was used for statistical testing. Results. This study obtained the following results: First, caregivers had greater intention to ask recipients to use daytime and nighttime care service. Second, there were statistically significant differences in caregivers' education, occupation, monthly average income, co-residence status, intimacy, and care-giving burden (emotional, financial, and social) and recipients' activities of daily living, instrumental activities of daily living, mental health status, dementia status, and intention to use community care service based on special grading for dementia. Conclusions. There are very few statistical data and academic materials regarding special grading for dementia, which has recently been established. The results of this study are therefore expected to help make a systematic analysis of the intention to use community care service by caregivers based on special grading for dementia.

• 대한방사선협회지
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• 제25권1호
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• pp.192-200
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• 1999

This experiment is to examination about the use status and the performance test of x-ray grid being used to medical center, general hospital, local clinic and college, etc in che-ju province. As results of this experiment were as follows; To the use statu

• Journal of Nutrition and Health
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• 제41권2호
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• pp.165-173
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• 2008

본 연구는 컴퓨터 사용 시간에 따른 고학년 초등학생의 컴퓨터 사용실태, 신체발달, 식생활 습관, 컴퓨터 사용으로 인한 식생활 습관의 변화 및 영양소 섭취 실태에 미치는 영향을 알아보고자 실시하였다. 조사대상자는 초등학생 4, 5, 6학년 학생 265명을 대상으로 설문지를 배포하여 실시하였다. 컴퓨더 사용시간은 하루 2시간을 기준으로 2시간 이상 사용하는 그룹과 2시간 미만 사용하는 그룹의 두 집단으로 분류하였다. 컴퓨터 사용 시간이 긴 그룹이 짧은 그룹에 비해 주별 기준 매일 이용하는 빈도가 더 높았으며, 양쪽 그룹 모두 '컴퓨터 게임을 위하여' 컴퓨터를 사용하고 있었다 (p < 0.05). 컴퓨터를 사용하는 장소와 시간은 대부분 집에서 방과 후 저녁시간에 이용하고 있었다. 신체발달 지표에서도 컴퓨터 사용시간이 길수록 체중과 %RBW가 짧은 그룹에 비해 높았다 (P<0.05). 전반적인 식생활 습관의 경우, 컴퓨터 사용 시간이 긴 그룹의 식생활 습관이 불량하였으며, 섭취하고 식품의 종류도 기름진 음식, 인스턴트 식품 및 단 음식을 더 많이 먹고 있었다. 컴퓨터 사용으로 인한 식생활 습관 변화여부에서도 컴퓨터 사용 시간이 긴 그룹이 끼니를 거르는 정도, 입맛의 변화, 식사속도, 식사량, 체중감소, 운동빈도 및 수면 등이 더 불량한 것으로 나타났다 (p<0.05). 이상의 결과에서 컴퓨터 사용 시간이 길어질수록 아동의 신체발달, 식생활 습관 및 영양소 섭취 상태에 부정적인 영향을 끼친 것으로 나타났다. 따라서, 장시간의 컴퓨터 사용으로 인한 바람직하지 못한 식생활과 잘못된 식습관의 고착을 예방하기 위해서는 학생들 스스로가 컴퓨터 사용시간에 대한 자율적 조절을 할 수 있는 교육 및 지도는 물론 이와 연계한 효과적인 영양교육의 정착 및 실천이 우선되어야 할 것으로 사료된다.

• KIEAE Journal
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• 제16권6호
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• pp.57-67
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• 2016

Purpose: Laws and regulations of land use are enormous, and the appliance of regulations is overlapped redundantly. Therefore, there are many problems such as time consuming in the process, limiting individual property rights, and interrupting enterprises' economic activities. This study will discuss problems of redundant regulations of land use and its improvement by figuring out current regulations of land use in Gyeonggi-do, one of provinces which applies the most various regulations of land use. Method: This study reviews laws on national land-use planning system and characteristics of land-use regulation in Korea. The extent of the review is limited to "framework act on the regulation of land use" with categories of national land, urban planing, architecture, etc. Through case studies in Gyeonggi-do, the status and problems of redundant regulations of land use are defined. For example, it is overlapped in "Seoul Metropolitan Area Readjustment Planning Act", Development Restriction Zone, Paldang Special District, and so on. It is mainly referred to 2015 Gyeonggi-do land-use restriction map. Result: First, Gyeonggi-do confronts many problems related to the development restrictions and the financial increasement for environmental management by redundant regulations. The development restrictions include supplying additional land for industrial use, relocating colleges, and height limitation relating to military facilities. Second, in order to organize redundant regulations, it is required to combine similar regulations and adjust through communication system among other departments. Third, regulations should consider unique local condition of each district. Lastly, efficient application of regulations is necessary so as to maximize the function of land, protect individual property rights, and stimulate local development.

• 직업교육연구
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• 제35권4호
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• pp.63-88
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• 2016

이 연구는 전문대학생 편입학의 직업지위 효과를 분석하고자 전문대에서 4년제에 편입학 후 취업한 경우와 전문대 졸업후 바로 취업한 경우의 노동시장 성과를 조사 및 분석한 것이다. 세부적으로는 편입학에 따른 직업구조의 차이를 조사했으며, 편입학이 직업지위에 어떤 효과가 있는지를 분석하였다. 자료는 대졸자직업이동경로조사(GOMS)를 사용했으며 표본의 선택편의 제고를 위해 성향점수매칭(PSM) 추정을 통해 544명의 표본을 추출하여 사용하였다. 또한 종속 변인으로 직업지위 지표를 개발하여 적용하였다. 이 연구의 연구 결과는 다음과 같다. 첫째, 편입학의 직업구조를 확인한 결과, 수평적인 산업구조에서는 편입학자가 모든 산업에 분포하고 있으나 비편입학자는 제조업에 상대적으로 많이 분포하고 진출하지 않은 산업 분야들도 있었다. 수직적인 직업지위 구조에는 높은 직업지위에는 편입학자가 더 많이 분포하고 비편입학자는 더 낮은 직업지위에까지 분포하고 있었다. 둘째, 편입학은 직업지위에 효과가 높은 것으로 나타났으며 이는 통계적으로 유의하게 나타났다. 그 외에 유의하게 나타난 설명변인은 부모학력, 전공계열, 고용형태, 전공직무일치 그리고 직무일치이다. 즉, 부모학력이 높을수록 직업지위가 높았으며, 공학자연계열인 경우 인문사회교육계열보다 직업지위가 높은 것으로 확인되었다. 정규직인 경우 비정규직보다 직업지위가 높았으며, 전공과 직무가 일치할수록, 교육 기술 수준과 직무가 일치할수록 직업지위가 높은 것으로 나타났다.

• 한국병원경영학회지
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• 제8권1호
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• pp.24-41
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• 2003

This study was conducted to investigate the determinants of e-mail use and its effects on the organizational effectiveness of hospital administrative workers. Data were collected from 147 administrative workers at 2 university hospitals in Seoul using self-administered questionnaires and analyzed using t-test, ANOVA, and multiple regression analysis. The major findings of the study are as follows: 1. There are significant differences in the use of e-mail for business purpose in terms of the gender, age, status, and education level. Workers who are men, over 30s, high status, and highly educated were more likely to use the e-mail. As for the private use, there are significant differences only in terms of the age level. 2. The more job characteristics need to use e-mail, the more workers have computer skills, and the more favorable the organizational culture is to using the e-mail, the more frequently the workers use the e-mail for both business and private purposes. 3. Job characteristics and personal computer skills have significant positive effects on the use of e-mail for business purpose. However, for the private purpose, only personal computer skills have a significant effect on the use of e-mail. 4. The level of the e-mail use for the business purpose has a significant effect on the work productivity, communication, and job satisfaction, while the level of the e-mail use for the private purpose has a significant effect only on the communication and job satisfaction. The implications for hospital administrators and suggestions for further research are discussed.

• 한국농촌건축학회논문집
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• 제21권2호
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• pp.43-51
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• 2019

The purpose of this study was to examine the current status of the use of bike parking lots in apartment complexes located in Gwangju Metropolitan City. The results were as follows. While common respondents answered the use of a bike for leisure or health, relatively few respondents answered a means of transportation such as going to school or work. It suggests that systematic plans to expand the range of using a bike should be made such as the connection of an apartment complex with a bike road. The common places to keep bikes were the entrance, the inside of the house, or stairs rather than bike parking lots because of safety problems such as theft or damage. In this regard, it is necessary to prepare clear regulation guidances to complement the safety problems of bike parking lots such as CCTV installation in the parking lots or compulsory installation of night lighting. Based on the findings, the methods to improve a bike parking lot should consider safety solutions and the complement of locations or keeping types. To activate the use of a bike, it is necessary to improve facilities to help residents' use of bike parking lots and expand their size in the future and examine the design of bike racks.

• 복식문화연구
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• 제10권4호
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• pp.419-432
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• 2002

This research analyzes how our people use the social position and status symbolism of the dress in focus of the Chosun Dynasty Period by analysis data of traditional folktale. This research material was analyzed social position and status symbolism of the dress with basis on Korean Oral Literature grand volumes of 82 published by The Academy of Korean Studies and whole volumes of 7 of Korean Literature Traditional , Folktale written by Kimhyunrwong. The methods of study is that first, selected part of describing social position and status of dress from the traditional Korean folktale. Second, summmarized things classified such as clothes, shape of hair and belt. Third, analyzed social position and status of dress with basis on symbol theory to be pre-studied. As a result, 1 can get the next conclusion. First, in case of the dress symbolism of social position and status, we classify as class. occupation, surreal person. Second, the changes of the social position and status showed upward position or downward position, and occupation change. Third, symbolization of position disguise was classified disguise of social position, sex, occupation.