• Korean Journal of Construction Engineering and Management
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• v.15 no.3
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• pp.38-46
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• 2014

The Global's top five Design Firms selected from BauNetz a German architectural magazine in 2007 designed free form building design which was 25% of the overall design by 2006-2010. Free form building is a landmark of the city and the country so its social and economic impacts are very large. In case of Korea, free form buildings such as Tribowl in Incheon, KINTEX Exhibition hall 2 and Dongdaemun Design Plaza have increased. However, those the increase in design trends and, the needs due to the lack of free form building design and construction management experience, free form building projects can't be expected to profitability and have a number of problems after completion. Especially, there are many excessive quality problems and the rising cost due to design changes frequently and lack of experience and data. Thus an initial plan regardless of considering of free form building's characteristics can be a huge risk because of the difference with the plan and actual projects, yet there aren't free form building project's performance data and case studies related to productivity. In this study, through selection of low-construction productivity works and an analysis of the work process and productivity data, hope to propose an actual field productivity of free form building and the ways to improve productivity.

• Journal of Navigation and Port Research
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• v.29 no.5 s.101
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• pp.389-394
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• 2005

The additional moment occurs because the superstructures of VLFS are influenced by wave loads instead of earthquake loads. In order to reduce the additional moment, this study used the semi-rigid connections which lie between fully rigid and pinned. If the semi-rigid connections are used for superstructures of VLFS, the moment of beams can be reduced and more economical construction will be possible. This study aims to show the effect of wave loads on structure and the efficiency of the semi-rigid connections due to wave loads by analyzing the time history responses. The dynamic behaviors of the rigid frame are compared with those of the semi-rigid frame considering of static loads, wave loads and combination loads for a four-bay, three-story frames. The semi-rigid connection type is a steel tubular column with square external-diaphragm connections and the time history analysis is used for the dynamic responses. The additional moment responses due to wave loads increase $33\%$ in the rigid frame, $26\%$ in the semi-rigid frame with the spring model.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.1
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• pp.340-348
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• 2016

This study, through a review of advanced research, first, examined the attitudes to products traded in import agency shopping malls and the characteristic variables(product characteristic, customer characteristic) that influence the purchasing intention to understand influencing relationship. Second, the role of adjustment in the relationship between the attitude to the products and the purchasing intention was examined by putting the perceived risk to the moderating variables. Third, efficient controllable basic data in the characteristic variables capable of influencing the management of and import agency shopping mall based on the implications was obtained from the above research result. The 126 responses collected from a questionnaire were analyzed using the SPSS 23.0 statistics package, and the analysis result can be summarized as follows. First, the main cause that influences the attitude of treated products in an import agency shopping mall is the country of origin, national image, innovativeness and price perception, not the brand image. Second, the attitude of the products influences the purchasing intention of the import agency shopping mall. Third, the perceived risk partially plays a role as a moderating variable in the relationship between the attitude of products and the purchasing intention.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.11
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• pp.8074-8088
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• 2015

In this study, main focus was analyzing whether the retired middle-aged people's life style and personal characteristics affect house selection attributes and there are any differences according to their life styles. The finding and implications of this study were as follows. The middle-aged people were trying to pursue leisurely and healthy life. Therefore, they prefer the high service quality of health, medical facilities, culture, leisure, and entertainment facilities. These trends were caused by the expansion of the five-days working styles, the improvements of the smart consumptions, the high levels of the education, and the high social and economic participations of the females. The overall changes in social, cultural, economical circumstances made them different from other generations. Also current middle-aged people were more challenging and active and they thought themselves young compared with the people of the older generation. In the future those middle-aged people's life style will be more diversified. Therefore new housing plans are necessary for the middle-aged popple to satisfy their diverse housing needs and housing circumstances. Based on the results of this study for the middle-aged people's life style and housing selection attributes after their retirement, more studies are necessary in new and different views. Furthermore diverse house supplies, housing marketing, housing policies should be provided for the middle-aged people for their retirement and need to study more their future housing satisfaction and their housing needs.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.12
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• pp.5541-5549
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• 2011

The purpose of this study was to investigate the relationship self-control, stress, loneliness among University Students, to provide the basic data for prevention of suicide occurrence. Methods: The subjects of this study were 1,253 university students. The collected data was analyzed using descriptive statistics, $x^2$-test, t-test, Pearson correlation coefficient and stepwise multiple regression with SPSS 17.0 Program. Results: The degree of the suicide attempt was 13.6%. The reported scores for self-control, internet addiction, stress, self-efficacy, anxiety, loneliness were 69.9, 42.5, 86.4, 48.2, 46.2, 40.1, respectively. The degree of suicide attempt was significantly different according gender, religion, parents status, family economic status, living, friendship, exercise, alcohol drinking, loneliness, state anxiety, stress, self-control, and internet addiction. The influential factors affecting suicide attempt were parents status, internet addiction, gender, exercise, and loneliness, which explained about 5.5% of the variance. Conclusions: These result suggest that earlier screening and suicide prevention programs for university students will be helpful in preventing suicide attempt. Future studies need to be pursued to find various variances for suicide attempt for university students.

• Journal of Navigation and Port Research
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• v.37 no.6
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• pp.627-635
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• 2013

This study examines the issue of causality between ocean industries and urban economic growth in the sea port city. To maximize economic advantage of Busan as a sea port city, we first need to analyze the effects of ocean industries on urban economic growth. This study focuses on the examination of the role of ocean industries and its related variations in economic growth at the urban level. Using data from Busan. Metropolitan City in Korea during 1985-2011, we find that the causality link between ocean industries and urban economic growth rates runs in both directions. Especially, industries of shipping/port, marine tourism, and shipbuilding were the most important variables in Busan economy. With this information, the empirical results show that ocean industries and its related variations have significant effects on urban economic growth. Based on these significant research findings, theoretical and practical implications were discussed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.5
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• pp.153-163
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• 2016

Intellectual output, such as research papers and patents, has increased due to the consistent investment of the government R&D budget, however, the economical outcome leaves much to be desired. These unsatisfactory results originate from the lack of information sharing about the technology's business compatibility and enterprise's business capability between technology supplier and technology user. This study aims at investigating the decision making process of technology commercialization by proposing an assessment model of the technology's business compatibility and enterprise's business capability. The assessment model was completed by selecting the key index through a literature survey, field survey and consultation with experts. The technology assessment model can be effectively utilized for technology licensing, technology start-up and technology selection in R&BD projects. However, the assessment indexes required for the basic science are not investigated in this study and some assessment indexes are differently interpreted by the individual appraisers. The assessment model will be improved through field application and additional studies will be conducted to develop the assessment model of basic science.

• Korean Security Journal
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• no.16
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• pp.119-135
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• 2008

This study is concerned on how much effect to activate private security officers from the attitude of CEO in private security companies. Of course the philosophy of CEO at the work is much important element on the company activity. And in small-medium size private security company the effect of CEO is tremendous because most of decision making comes from CEO and company is operated. The result of the analysis of the survey on the CEO in private security business is as belows. a) Most of them are not satisfied and negative from current situation of private security industry because too many companies are scattered and the expected social understanding is too low even though the company was established by their own decision due to it was fit to their aptitude. b) The job position is estimated not high by socio-economical perspective, which would be improved to get higher because this industry is very future business. c) Most of members of the korea security association are in negative on the policy of the korea security association but to enhance of the activity all the members should be in union. d) Must make and settle down a channel to communicate and cooperate each other between public and private sector of security business.

• Korea journal of population studies
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• v.25 no.1
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• pp.51-82
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• 2002

This paper focuses on the process of national family politics through the project of family planning which became one of the main factors that brought the structural change in Korean families after 1960's. The family planning was established under the national project which was tightly driven by the government, and the new families were built artificially and coercibly by the plan rationality. The various and diverse forms of the national family politics were revealed in the process of the project. For example, the image of the modern families was forcedly adopted in order to justify the project, the families in this period were under microscopic surveillance in order to accomplish th e project effectively , etc. Modern nuclear families were derived through the economical and social support on the families only with a few number of children, and the structural change was made through the medical technique and support. Consequently, during the forty years after the project, the size of the families were reduced drastically, various and diverse forms of families were generated, and the modern family action and value were wide spread and generalized. Through the project, the government has been establishing th family patterns and norms which were so suitable to the modernization project that the families were able to be pulled into public sphere. The family problems in this process became very serious. However the government repeatedly forced the families to be the reoresentative of welfare state through new-modern political discourses. The welfare through the family is coerced to replace the weakness of welfare state. However the family is not the subject of the welfare, but the object of the welfare. The governmental family politics must make more efforts to gave the families to be the object to the welfare.

• Proceedings of the Korean Vacuum Society Conference
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• 2000.02a
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• pp.78-78
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• 2000

다결정 실리콘-게르마늄 (poly-SiGe)은 태양전지 개발에 있어서 중요한 물질이다. 우리는 소량의 Ge(x=0.05)으로부터 다량의 Ge(x=0.67)을 함유한 수소화된 비정질 실리콘-게르마늄 (a-SiGe:H) 박막의 고상결정화 과정을 ESR (electron spin resonance)방법으로 조사해보았다. 먼저 PECVD 방법으로 Corning 1737 glass 위에 a-Si1-xGex:H 박막을 증착시켰다. 증착가스는 SiH4, GeH4 가스를 썼으며, 기판온도는 20$0^{\circ}C$, r.f. 전력은 3W, 증착시 가스압력은 0.6 Torr 정도이었다. 증착된 a-SiGe:H 박막은 $600^{\circ}C$ N2 분위기에서 다시 가열되어 고상결정화 되었고, 결정화 정도는 XRD (111) peak의 세기로부터 구해졌다. ESR 측정은 상온 x-band 영역에서 수행되었다. 측정된 ESR스팩트럼은 두 개의 Gaussian 함수로써 Si dangling-bond와 Ge dangling-bond 신호로 분리되었다. 가열 초기의 a-SiGe:H 박막 결함들의 스핀밀도의 증가는 수소 이탈에 기인하고, 또 고상결정화 과정에서 결정화된 정도와 Ge-db 스핀밀도의 변화는 서로 깊은 상관관계가 있음을 알 수 있었다. 특히 Ge 함유량이 큰 박막 (x=0.21, 0.67)에서 뿐만 아니라 소량의 Ge이 함유된 박막(x=0.05)에서도 Ge dangling-bond가 Si dangliong-bond 보다 고상결정화 과정에서 더 중요한 역할을 한다는 것을 알수 있었다. 또한 초기 열처리시 Si-H, Ge-H 결합에서 H의 이탈로 인하여 나타나는 Si-dangling bond, Ge-dangling bond 스핀밀도의 최대 증가 시간은 x 값에 의존하였는데 이러한 결과는 x값에 의존하는 Si-H, Ge-H 해리에너리지로 설명되어 질 수 있다. 층의 두께가 500 미만인 커패시터의 경우에 TiN과 Si3N4 의 계면에서 형성되는 슬릿형 공동(slit-like void)에 의해 커패시터의 유전특성이 파괴된다는 사실을 알게 되었으며, 이러한 슬릿형 공동은 제조 공정 중 재료에 따른 열팽창 계수와 탄성 계수 등의 차이에 의해 형성된 잔류응력 상태가 유전막을 기준으로 압축응력에서 인장 응력으로 바뀌는 분포에 기인하였다는 사실을 확인하였다.SiO2 막을 약화시켜 절연막의 두께가 두꺼워졌음에도 기존의 SiO2 절연막의 절연 파괴 전압 및 누설 전류오 비교되는 특성을 가졌다. 이중막을 구성하고 있는 안티퓨즈의 ON-저항이 단일막과 비교해 비슷한 것을 볼 수 잇는데, 그 이유는 TiO2에 포함된 Ti가 필라멘트에 포함되어 있어 필라멘트의 저항을 감소시켰기 때문으로 사료된다. 결국 이중막을 구성시 ON-저항 증가에 의한 속도 저하 요인은 없다고 할 수 있다. 5V의 절연파괴 시간을 측정한느 TDDB 테스트 결과 1.1$\times$103 year로 기대수치인 수십 년보다 높아 제안된 안티퓨즈의 신뢰성을 확보 할 수 있었다. 제안된 안티퓨즈의 이중 절연막의 두께는 250 이고 프로그래밍 전압은 9.0V이고, 약 65$\Omega$의 on 저항을 얻을수 있었다.보았다.다.다양한 기능을 가진 신소재 제조에 있다. 또한 경제적인 측면에서도 고부가 가치의 제품 개발에 따른 새로운 수요 창출과 수익률 향상, 기존의 기능성 안료를 나노(nano)화하여 나노 입자를 제조, 기존의 기능성 안료에 대한 비용 절감 효과등을 유도 할 수 있다. 역시 기술적인 측면에서도 특수소재 개발에 있어 최적의 나노 입자 제어기술 개발 및 나노입자를 기능성 소재로 사용하여 새로운 제품의 제조와 고압 기상 분사기술의 최적화에 의한 기능성 나노 입자 제조 기술을 확립하고 2차 오염 발생원인 유기계 항균제를 무기계 항균제로 대체할 수 있다. 이와 더불