• International journal of advanced smart convergence
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• 제7권2호
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• pp.135-142
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• 2018

Virtual reality (VR) technology has been increasingly more frequently used day by day in industries, entertainment and performances due to the development of AR and MR technologies. Performance arts also actively utilize $360^{\circ}$ VR technology due to the free expression of stage settings and auditoriums. However, technologies for systems in which performers wear VR devices firsthand rather than being in the sandpoint of bystanders while audiences wear VR head mounted displays(HMDs) to see performance stages have been rarely studied yet. This study investigated the technical possibilities of possible methods of expression that will enable performers to appear on the stage wearing VR devices. Since VR can maximize the sense of immersion with its closed HMD structure unlike augmented reality (AR), VR was judged to be suitable for studies centered on the mental interactions in the inner side of humans. Among them, to implement shamanistic expression methods with the phantoms of the body and soul, a motion capture technology linked with VR display devices and real-time cameras was realized on the stage. In this process, the importance of body ownership experienced by the performers (participants), reactions when they lost it, and the mental phenomena of the desire to possess the subjects of gaze could be seen. In addition, high possibility of development of this technology hereafter could be expected because this technology includes the technical openness that enables the audience to appear on the stage firsthand to become performers.

• KDI Journal of Economic Policy
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• 제29권2호
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• pp.75-116
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• 2007

본 연구는 외환위기를 전후로 우리나라 기업의 현금보유 패턴에 어떠한 변화가 발생하고 있는지 분석하였다. 분석결과에 따르면, 첫째 최근 현금보유가 증가한 것은 소수의 기업들이 현금보유 규모를 과거에 비해 급격하게 증가시키는 과정에서 관찰된 현상이며, 전반적으로 기업들의 현금보유가 증가하였다고 보기는 어려운 것으로 나타났다. 둘째, 선진국의 경험과 유사하게 우리나라 기업들의 경우에도 영업성과의 불확실성이 높을수록 현금보유 비중을 높게 가져가는 경향이 있는 것으로 나타났다. 최근 영업성과의 불확실성이 과거에 비해 상승한 것도 우리나라 기업의 현금보유 패턴 변화에 일부 영향을 미쳤을 것으로 사료된다.

• 대한기계학회논문집A
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• 제33권8호
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• pp.720-725
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• 2009

Among many kinds of parts for Liquid Crystal Display (LCD), a Back Light Unit (BLU) that changes the path of the light from light source to screen is the most important part to improve optical performances such as uniformity and average value of brightness. Up to recently, design process of BLU has been carried out by depending on the experience of design engineer. Using this approach, however, is proven that it is hard to effectively deal with difficulties in a process of the LCD development such as frequent design modifications, various design requirements, and short-term development. To cope with this situation, we applied a Process Integration and Design Optimization (PIDO) based design environment. PIDO is a software package to integrate multiple simulation processes and find a better solution using various design techniques. In this research, we found a design solution satisfying all design requirements by using the PIDO.

• KIEAE Journal
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• 제17권5호
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• pp.25-31
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• 2017

Purpose: Currently, there are many success stories coming out various energy-saving / production or eco-friendly buildings. However, these case and method didn't consider of application with existing housing and high-rise housings. In the case of Europe, the North America is gradually grew and settle through the voluntary, small, private development. But this method and system are not fit for the majority of developing countries including South Korea. Method: In this situation, this paper analyse, first arranged previous research and case study, second divided factors and re-organized factors, third analysed plan and elevation of apartment and selected main plan type and elevation type of apartment, finally analysed method of application with existing buildings and high-rise buildings by test and simulation. Result: In sum, this research finally analyzed the change of electricity and fuel consumption according to the change of insulation standard. This study has been expected to serve as a bridge of the energy housing system development and suggest new method applied to the existing housing and building.

• 적정기술학회지
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• 제6권1호
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• pp.65-78
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• 2020

This paper deals with challenges of Mongolian government regarding Economic Development Plan (hereafter EDP). EDP has a long history, appearing first in the socialist countries, then in European countries following the European Reconstruction Plan after the Second World War, and then in many developing countries after they gained independence from the colonial rule. Major challenges of the Mongolian EDP are largely related to the absence or lack of integrated approach. We will propose a new integrated framework based on the approach suggested by UNDP. The new framework consists of 5 core areas; 1) institutions and governance, 2) evidence-based and empirically backed policy options, 3) development of budgeting and financial system, 4) and monitoring and evaluation (M&E), 5) capacity development. In order to identify challenges in Mongolia, the new integrated approach was applied to diagnose current states. To understand current states of EDP in Mongolia, survey regarding EDP in Mongolia was conducted for the 43 officials of Ministry of Finance. The same approach was applied for Five-Year Economic Development Plans in Korea to compare performances with EDP in Mongolia. On the basis of comparative analysis of EDPs in Mongolia and Korea, some lessons are suggested.

• 한국가정과교육학회지
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• 제9권1호
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• pp.179-191
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• 1997

The purpose of this study is to analyze the state of father’s role performance and self-esteem of adolescents, to investigate the relation between the father’s role performances recognized by adolescents and the self-esteem of adolescents, and to present the basic data for showing the importance of father’s role in increasing the adolescents’self-esteem. The subject of this survey was 795 male and female students of the second grade in Kwangju middle and high schools. The questionnaire was used for this study as a means of measuring. The results of this study were as follows：1. The degrees of father’s role performances were considered ‘82.19 points’out of 125 by adolescents but rather high by the female students, it didn’t have any significant difference between the male students and female. 2. The degrees of adolescents’ self-esteem were ‘51.17 points’out of 85 on the whole. But specifically, the degrees of adolescents’self-esteem of the male students were higher than those of the female students. This self-esteem of adolescents caused significant differences in the right to the decision-making and the father’s occupation only. 3. The influence of father’s role performances on the adolescents’self-esteem was found very high, and more influence were showed by the female students than by the male students. 4. The order in the effective poser of variables on the adolescents’self-esteem was as following； the role in command and harmony, the sex, the economic role, the role in intellectual ability development. In conclusion, father’s role performance were found to be important variables on the conform adolescents’self-esteem.

• 복식
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• 제57권3호
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• pp.53-62
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• 2007

The purpose of this study was to investigate mechanical and comfort performances of the material for the improved working uniform for a volunteer fire brigade member, to get basic data for its evaluation and to help its material and design development. The results were as follows; The material of the newly developed working uniform was thinner and lighter than the material of the current used working uniform. It had better breathability, air permeability and heat transmission rate than the current one. It also had superior anti-flammability In all mechanical properties(tensile, bending, shearing, compression and surface properties), it showed better performances than the current one. It elongated and bended easier and more in both warp and weft directions. The elastic recovery and shape stability after elongation were also higher. The recovery and resistance to shearing and the resiliency and recovery after compression were also better than the current one. It was more flexible, softer and smoother in primary hand value, and was more suitable for the material for winter suit which needs softness and fullness in total hand value. The material of the improved working uniform showed lower thermal insulation value and higher evaporative resistance value compared to the material of the currently used working uniform from the sweating thermal manikin test. It was shown that the physical performances and the hand value of the textile material used in the newly developed working uniform for a volunteer fiber brigade member was improved compared to the one used in the currently used working uniform.

• 한국컴퓨터정보학회논문지
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• 제8권4호
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• pp.148-158
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• 2003

본 연구의 주요 목적은 e-CRM의 정보기술(IT) 요소가 고객반응 성과에 미치는 영향을 측정하는데 있다. 본 연구에서는 기존 연구를 바탕으로 e-CRM의 구성요소를 고객관리용 구성요소와 고객분석용 구성요소로 분류하였다. 그리고 고객반응 성과 변수들을 도출한 후, 두 가지 유형에 속하는 e-CRM 정보기술 구성요소들과 이들 변수들간의 관계에 대한 실증적 분석을 실시하였다. 본 연구의 주요 성과로는 e-CRM 성공요인 및 구성요소 관련 기존 연구를 통하여 e-CRM 영역의 정보기술 구성요소와 고객반응 성과와 고객 충성도간의 관계를 실증적으로 검증함으로써 e-CRM 도입 및 구현분야에 이론적인 기여와 함께 이 분야의 현업 업무수행에 실제적인 도움이 될 수 있다는 점이다.

• 기술혁신연구
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• 제23권2호
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• pp.55-80
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• 2015

본 연구는 산학협력단의 리더십역량, 전략역량 등 핵심역량이 기술이전과 교육성과에 미치는 영향을 분석한 연구이다. 우선, 산학협력단과 관련한 문헌연구를 실시하였고, 전국 산학협력단을 대상으로 설문조사를 실시하였다. 본 연구에서는 산학협력단 주요 경영성과인 기술이전성과와 교육성과를 종속변수로 설정하였다. 독립변수로는 리더십역량, 전략역량, 인적자원역량, 연구개발 역량을 설정하고 각각에 대한 조작적 정의를 부여 하였다. 변수간 인과관계분석을 위한 연구모형을 제시하였으며, 설문대상 간의 차이 분석을 위해 국공립 대학과 사립대학을 조작변수로 연구모형에 포함하였다. 실증분석 결과, 독립변수로 적용한 리더십역량은 기술이전성과와 교육성과에 영향을 미치지 않는 것으로 조사되었으며, 마찬가지로 전략역량은 교육성과에만 영향을 미치는 것으로 검증되었다. 인적자원역량의 경우에도 종속변수에 미치는 영향이 없었으며, 연구개발 역량의 경우에는 기술이전성과에 영향을 미치는 것으로 분석되었다. 본 연구의 결과가 산학협력단의 경영성과 개선에 도움이 되기를 기대한다.

• 한국시뮬레이션학회논문지
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• 제32권1호
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• pp.23-34
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• 2023

본 논문의 목적은 이항출력 실험을 이용할 경우에 확률적 전역 최적화 방법론들을 검토하고 알고리즘들간의 성능을 비교하기 위한 것이다. 모 성공확률은 알수 없고 확률적 특성을 갖기 때문에 확률적 전역 최적화 방법론에서는 모 성공확률 대신 성공확률의 추정치를 이용한다. 언덕오르기 알고리즘 , 단순랜덤탐색, 랜덤재출발 랜덤탐색, 랜덤 최적화, 담금질 기법 및 군집기반의 알고리즘인 입자 군집 최적화 알고리즘을 확률적 전역 최적화 알고리즘으로 사용하였다. 알고리즘의 비교를 위하여 두가지 테스트 함수(하나는 단봉이고 나머지는 다봉임)가 제안되었고 몬테카를로 시뮬레이션을 이용하여 알고리즘의 성능을 평가하였다. 단순 테스트 함수에 대하여는 모든 알고리즘이 유사한 성능을 보이고 있다. 복잡한 다봉의 테스트 함수에 대하여는 랜덤재출발 랜덤최적화, 담금질 기법과 군집 기반의 입자군집 알고리즘이 훨씬 더 좋은 성능을 보임을 알 수 있다.