• 한국가족복지학
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• 제53호
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• pp.199-234
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• 2016

이 연구는 장애부모에게서 자란 아동의 심리사회성 발달 문제를 다룬 것이다. 특별히 연구는 부모의 사회참여활동과 미래전망이라는 부모요인이 아동의 심리사회성 변화에 미치는 영향을 실증적으로 다루었다. 분석의 주요결과는 다음과 같다. 첫째, 장애부모에게서 자란 아동은 비장애부모에게서 자란 아동에 비해 상대적으로 더 불안한 심리상태와 사회성을 보였다. 특히, 부모의 장애가 아동의 심리상태에 부정적으로 작용하며, 이것이 사회성 악화로 이어짐을 확인하였다. 둘째, 부모장애의 부정적 영향은 초등학생 시기에 심하고, 아동이 성장하면서 점차 줄어들었다. 셋째, 부모의 사회참여활동과 미래전망은 장애부모에게서 자란 아동의 심리사회성 변화에 의미 있는 영향을 미쳤다. 두 가지 부모요인은 아동의 심리변화에 긍정적으로 작용하며, 동시에 사회성변화를 이끄는 매개효과도 가졌다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 하계학술대회 논문집 D
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• pp.1738-1740
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• 1999

This paper deals with a novel structure of poly-Si solar cell. A solar cell conversion efficiency was degraded by grain boundary effect in Polycrystalline silicon. To reduce grain boundary effect, we performed a preferential grain boundary etching, $POCl_3$ n-type emitter doping, and then ITO film growth on poly-Si. Among the various preferential etchants, Schimmel etch solution exhibited the best result having grain boundary etch depth about $10{\mu}m$. RF magnetron sputter grown ITO films showed a low resistivity of $10^{-4}\Omega-cm$ and high transmittance of 85%. With well fabricated poly-Si solar cells. we were able to achieve as high as 15% conversion efficiency at the input power of 20mW/$cm^2$.

• 지질공학
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• 제12권1호
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• pp.1-21
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• 2002

최근 고도의 경제성장으로 인한 도시화와 바른 산업발달은 지하공간의 확장 뿐만 아니라 이용 및 최적화를 필요로 한다. 지하시설물이나 근접구조물의 피해 및 침하와 같은 많은 문제점을 일으키는 흙막이구조물을 위한 버팀굴착의 지역에서 넓고 깊은 기초가 건설되고 있다. 본 연구는 5개의 굴착 공사현장으로부터 얻어진 측정결과에 근거한 침하량과 침하의 영향거리에 관하여 고 하였다. 굴착깊이를 이용한 최대지표침하량(0.28∼0.3)(%)H는 계측값 및 Clough방법에 의한 값과 유사성을 갖으며 Clough 방법에 의한 침하량 및 침하영향거리의 산정이 가장 합리적임을 알 수 있다.

• 한국주거학회논문집
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• 제16권2호
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• pp.83-90
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• 2005

A goal of this research is to propose the remodeling possibility from deteriorated stock apartment housing, to three generation family living in a dwelling unit for low incomes. An apartment housing which was built from 1970s, is accumulated over $55\%$ of the stock housing in Korea, many of them are confront with a rebuilding in a short usage of twenty years below. They are small one, and many of the residence complain narrow and small space compare to economic growth and their needs. This article deals the reform of two to one dwelling units, that it can be use for three generation family living as a new residence, because its spatial character is more controled privacy condition as a four bay spatial organization in the dwelling. The reform simulated in a 10, 13, 14, 15, and 16 pyung, the remodeling size became from 20 to 30 pyung, and its reform can be apply to extend life cycle of a stock confront with redevelopment. The possibility of the reform houses have more intensive privacy in a house compare with same area of new apartment. It tells us that we can recycle the deteriorate apartment house into three generation family living use, and it will be clue to change slum clearance into reform and recycle of deteriorate apartment house.

• 한국환경복원기술학회지
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• 제13권1호
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• pp.93-102
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• 2010

Greening sometimes fails because its method is not suitable for various site conditions, therefore the trend of selecting a revegetation method in Korea today is through test construction. However, due to enlargement, complication and diversification of domestic construction businesses, the importance of VE is gradually increasing as effective efforts over a whole life-cycle to obtain goals such as quality improvement and cost reduction, and not only quality and economic efficiency but also substantiality need to be considered in comparing revegetation methods. For this study, Sungnam~Janghowon (area1), where comparatively various slope revegetation methods are used, was selected the investigation site. The site was divided into three areas:blasting rock, ripping rock and earth sand. The revegetation methods used were six in the blasting rock area, five in the ripping rock area, and two in the earth sand region. 2007 monitoring data was analyzed, and Value (V) was calculated with LCC related ratio, and compared and contrasted with the evaluation of prior revegetation methods. Therefore it is believed that this analysis enables selection of the most appropriate method, unbiased towards one particular characteristic such as quality, vegetation growth and economy. When aiming for a durable effect, it shall be more efficient to select the most appropriate method focusing on LCC analysis, which deals with the economic aspect, as well as the design function aspect.

• 산업공학
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• 제10권1호
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• pp.237-248
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• 1997

The purpose of this study is to make an economic analysis of power plant utilities by examining electricity generating costs with environmental consideration. Economic growth has caused pollutant emission, and subsequent environmental pollution has been identified as a very real limit to sustainable development. Considering the enormous role of electricity in the national economy, it is thus very important to study the effect of environmental regulations on the electricity sector. Because power utilities need large investments during construction, operation and maintenance, and also require much construction lead time. Economic analysis is the very important process in the electric system expansion planning. In this study, the levelized generation cost method is used in comparing economic analysis of power plant utilities. Among the pollutants discharged of the electricity sector, this study principally deals with the control activities related only to $CO_2$, and $NO_2$, since the control cost of $SO_2$, and TSP (Total Suspended Particulates) is already included in the construction cost of utilities. The cost of electricity generation in a coal-fired power plant is compared with one in an LNG combined cycle power plant. Moreover this study surveys the sensitivity of fuel price, interest rate and carbon tax. In each case, this sensitivity can help to decide which utility is economically justified in the circumstance of environmental regulations.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 A
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• pp.99-101
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• 2000

Different optimization algorithms have been proposed to solve real and reactive power optimization problems. Most of all, linear programming techniques that employed a simplex method have been extensively used. But, the growth in the size of power systems demands faster and more reliable optimization techniques. An Interior Point(IP) mehod is based on an interior point approach to aim the solution trajectory toward the optimal point and is converged to the solution faster than the simplex method. This paper deals with the use of Successive Linear Programming(SLP) for the solution of the Security Constrained Economic Dispatch(SCED) problem. This problem is solved using the IP method. A comparison with simplex method shows that the interior point technique is reliable and faster than the simplex algorithm.

• 한국디지털건축인테리어학회논문집
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• 제9권3호
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• pp.25-35
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• 2009

This study is planning improvement of welfare facilities about the hall for the aged in apartment housing. An apartment house, famous residential type in Korea, put an important value on its convenience and economical efficiency of furniture arrangement by maximizing floor space index. In this regard, leisure usage of house was not carefully considered for the aged people. To redefine the efficiency of welfare facilities, research mainly deals with analysis of realistic needs for the aged through the spot survey and interview. The main purpose of this study is to enhance the quality of welfare facilities and propose the improved welfare facilities for the aged people. Through the research, conclusions are as followed First, Facility standard and provisions of the law should be revised for considering population growth of the aged people. Second, there are 4 plan types in the hall for the aged. Contrary to our expectation, diversity of program was not found however various program planning is needed for considering its different types of plan. Third, according to regulation, space restriction is based on the number of households. Therefore, room and space standard does not depend on the number of people. From now on, in order to improve quality of welfare facilities of the aged, revision of laws and overall facility standard should be implemented in advance.

• 문화기술의 융합
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• 제2권4호
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• pp.61-64
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• 2016

스마트폰 보급이 증가함에 따라 기존의 쇼핑몰 역시 모바일 시장에 적극적으로 가세하며 모바일 쇼핑 시장의 경쟁을 더욱 더 가속하고 있다. 이는 모바일 쇼핑시장이 더 이상 무시할 수 없는 거대한 시장으로 성장 중이라는 것의 반증이라고도 볼 수 있다. 본 논문에서는 모바일 시장의 증가와 모바일 시장에서 가장 높은 비율을 차지하는 의류에 관한 모바일 쇼핑몰 어플리케이션이다. 본 연구는 좀 더 세세한 고객 정보를 토대로 고객만족도를 높이며, 부차적으로는 반품률을 낮춰 기업과 고객 모두의 만족도를 높이는 것을 목표로 한다.

• 한국수학교육학회지시리즈A:수학교육
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• 제44권2호
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• pp.265-280
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• 2005

According to the characteristics of elementary school students in favor of playing games, and to their high energy levels and physical growth states, it is fair to say that students can learn mathematics through 'game playing activities.' These activities are considered to intrigue their interest in class and make them feel less stress from the burden of studying mathematics. Mr. Skemp, who had conducted research on 'game activity' with experimental studies relating to elementary mathematics, recommends that math teachers try to give as many activity-oriented classes as possible to students. The method of 'game activity' by Skemp's operation deals with the whole range of mathematical themes. It is believed by other math teachers that this is not a way to substitute free time or just to have fun in class, but an intentionally well-organized way of learning an entire mathematical course during elementary school. In this research, 5th and 6th grade students needing extra classes after school had been exposed to 'ame activity' by Skemp's operation. As a result, we can figure out its influence on their understanding of arithmetic ability, and on the cognitive definition territory in their minds.