• 대한화학회지
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• 제37권8호
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• pp.753-756
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• 1993

디메틸술록시드와 물 및 몇가지 알칸올간의 분자 상호작용에 관한 연구를 증기압 삼투법으로 40$^{\circ}C$에서 수행하였다. 디메틸술폭시드는 물, 메탄올, 에탄올, 1-프로판올, 2-프로판올과 2-메틸-1-프로판올에서는 라울의 법칙에서 부의 벗어남을 나타내었으며, 1-부탄올과 1-펜탄올에서는 라울의 법칙에서 정의 벗어남을 나타내었다. 이 결과를 이종분자간의 상호작용과 DMSO 분자의 자체회합으로 각각 해석하였다. 측정한 물과 알칸올과의 히드록실 양성자의 화학적 이동도 이 결과를 뒷받침하였다.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제44회 동계 정기학술대회 초록집
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• pp.112-112
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• 2013

Well-defined surfaces of single-crystalline solid materials are starting points of self-organizationof nanostructures and chemical reactions controlled in nanoscale. Although highly ordered atomicarrangement can be obtained on semiconductor surfaces, they can be maintained only in vacuumand not in air or in aqueous environment. Since single-crystalline metal oxide surfaces arechemically stable and no further oxidation occurs, their atomic structures can be utilized fornanofabrication in liquid processes, nanoelectrochemistry and nanobiotechnology. Sapphire is oneof the most stable metal oxides and its crystalline quality is excellent, as can be applied to electronicdevices that require ultralow defect densities. We recently found that chemical phase separationoccurs on sapphire surfaces by annealing processes and the formed nanodomains exhibit specificproperties in air and in water [1,2]. In our experiments, highly selective and controllable adsorptionof various protein molecules is observed on the phase-separated surfaces though the materials andcrystallographic orientations are identical [3,4]. Planar lipid bilayers supported on thephase-separated sapphire surface also exhibit a specific formation site selectivity [5]. Chemicalnanodomains appear on other metal-oxide surfaces, such as well-ordered titania surfaces. Wedemonstrate that surface chemistry of the nanodomains can be characterized in aqueousenvironment using atomic force microscopy equipped with colloidal tips and then show adsorptionand desorption behaviors of various proteins on the phase-separated surfaces.

• The Journal of Asian Finance, Economics and Business
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• 제7권10호
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• pp.1093-1106
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• 2020

The role of the social environment for any activity is crucial as it prompts new ideas and plays a role of lever for entrepreneurial longevity and creating value through social wellbeing. The lack of entrepreneurship related knowledge in Pakistan has taken the challenge of lesser entrepreneurial activity as compared to other counterpart Asian countries and ranked 138 out of 189 countries on the level of ease of doing business. The study aims to investigate the social environment as a mediator among idea generation, business creation, financing decision and entrepreneurial activity by utilizing quantitative approach. In order to achieve the objective, a total of thirty eight items scale was self-administered for data collection. A non-probability, snowball sampling technique was employed and assembled a total of 300 complete responses through online and paper based surveys as per information provided by the chamber of commerce of three regions namely; Sukkur, Hyderabad and Karachi Sindh, Pakistan. The data analysis result strongly supported the main research question as the entrepreneurial activity increased up to 43.8% after applying social environment as a mediator. This research can help to enhance entrepreneurial activities in Pakistan by creating awareness to support entrepreneurs at social level for entrepreneurship.

• 한국구조물진단유지관리공학회 논문집
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• 제4권4호
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• pp.181-190
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• 2000

Vibration analysis for some of simple supported antisymmetric composite laminated plate loaded uniform axial-loading and attached mass was carried out. Because it is complicated to analyze this type of plate by theory of antisymmetric laminate possibility for application of theory of special orthotropic laminate was studied, and natural frequency of laminated plate attached mass was calculated. Stiffness $B_{16}$, $B_{26}$, $D_{16}$, $D_{26}$ for this type of antisymmetric laminated plate converge on zero as the number of ply increases and it is possible to use classical theory by reason that considered plate has quasi-homogeneity without relevance to variation of angle. Difference between results by theory of antisymmetric and special orthotropic laminate is 0.36~1.96%, therefore it is convenient to analyze this by use of theory of special orthotropic laminate. When composite laminated plate with attached mass is analyzed range that Was able to neglect self-weight of plate was proposed.

• 한국정보시스템학회지:정보시스템연구
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• 제16권3호
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• pp.45-68
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• 2007

This study aims to explore factors of Assimilation Gap(AG) which is proposed and illustrated by Fichman and Kemerer(1997). AG is defined as the time delay between adoption and deployment and mainly studied at the organizational level. This study derives the factor affecting AG through a review of technology acceptance models and agency theory. The research model consists of three groups of independent variables(IT knowledge burden, Individual characteristics, and organization characteristics) and a moderator, which is goal incongruence. Using multiple regression analyses, four groups of hypotheses are tested with data of 221 knowledge workers from various organizations through e-mail survey. The result shows that radicalness(a dimension of knowledge burden), personal innovativeness, self-efficacy, and organizational support are statistically significant factors while complexity, experience, and perceived critical mass are not supported. The moderator effects of goal incongruence are found in personal innovativeness and organizational support. The results of this study demonstrate that agency theory is a useful perspective to deal with AG, especially in radical innovation. In addition, IT practitioners should consider not only user training but also incentives and possible organizational controls in implementing a new information technology.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제29권3호
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• pp.122-128
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• 2018

Objectives: This study evaluated the psychometric properties of the Korean version of the attention-deficit/hyperactivity disorder (ADHD) Stigma Questionnaire (ASQ) and the effect of the source of information about mental health on ADHD stigma. Methods: The Korean translation of the ASQ was prepared, and 673 participants, 20-64 years of age, completed the questionnaire using an online panel survey in South Korea. The participants also completed questionnaires detailing sociodemographic variables and the source of their mental health knowledge. Cronbach's alpha coefficient was used to explore the internal consistency of the ASQ. Factor analysis using Varimax rotation was conducted to investigate the structure of the ASQ. Results: The 26-item ASQ demonstrated excellent internal consistency (Cronbach's alpha=0.940). Factor analysis supported a three-factor structure, including Concerns with Public Attitudes, Negative Self-Image, and Disclosure Concerns. There were no significant differences in the total ASQ scores according to sociodemographic characteristics. Participants who reported the internet as their major source of information about mental health showed higher ASQ scores compared to those who used other sources for mental health information. Conclusion: The Korean translation of the ASQ has acceptable psychometric properties among Korean adults. Inaccurate information from the internet could increase the stigma toward ADHD.

• Acta Via Serica
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• 제3권1호
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• pp.57-83
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• 2018

Historians describe the early years of the 20th century as a period of "nationalism." During this period, Turkish nationalism transformed into a thought movement which emerged to defend Turkish national sovereignty during the collapse of the Ottoman Empire. Approaches towards nationalism in Turkey are based on the idea of national sovereignty and the ideas of national independence that developed subsequently. Nationalism in Turkey first transformed from Pan-Islamism into multinational Ottomanism, and finally developed into Turkish nationalism and patriotism. This process emerged as a movement of self-discovery in the multicultural structure of the Ottoman Empire and transformed into Turkism. The Balkan Wars (1912-1913) destroyed the foundation upon which Ottomanism was based, and led to the rise of Turkish nationalism, in other words, Turkism. The idea of nation in modern terms in the recent history of thought and nationalism subsequently developed based on this idea and emerged with the Turkism movement. Thus, Turkism became the movement of Turks in the empire, combined with political Turkism which was supported by the intellectuals who came to the Ottoman Empire from Russia. In this article, the formation of Turkist movements and the leading intellectuals of Turkish nationalism, who emerged at the end of the 19th century and at the beginning of 20th century in the Ottoman Empire, are investigated in order to examine the historical progress of nationalist approaches in a period in which a new national state was established and improved.

• 한국주거학회논문집
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• 제15권3호
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• pp.21-30
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• 2004

The purpose of this study was to examine theoretical underpinnings of housing adjustment as applied to residents of Korean folk housing. On random and voluntary base, 66 households of the Andong Haboe folk village were asked to participate in the present study for a self-administrated questionnaire survey as well as open-ended face-to-face interviews. Some valuable results were obtained as follows. In spite of the legal barrier to change in physical conditions of housing, first, a huge amount of adjustment actually took place in the rural folk village. Satisfying basic amenity or shelter needs turned out to be the basic role of adjustment. Second, the number of adjustment works previously done was not effective anyhow in predicting the level of housing satisfaction. Speare's (1974) satisfaction theory of housing adjustment was largely supported by the present study. Highly dissatisfied residents with their housing were more likely to expect adjustment works of their own. Additionally, age turned out to be the most powerful predictor of housing adjustment. Finally, housing satisfaction was positively correlated with community attachment (Kendall's $\tau$ =.35 ; p 〈 .001). Residents satisfied with their house were more likely to be proud of being a member of community. Overall, though, community attachment was not related anyhow to the willingness of housing adjustment.

• The Korean Journal of Ecology
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• 제24권4호
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• pp.253-258
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• 2001

Land use pattern in the Wangsuk river watershed was investigated on the bases of physiognomic vegetation maps made from the aerial photograph interpretation and field check. Landscape structure was analyzed using a GIS program supported by ArcView. Landscape structure depended on the geographical position of the river, such as the upper, middle and lower river. Watersheds of the upper and middle rivers were dominated by forests composed of secondary forest and plantation. But agricultural fields dominated that of the middle and lower river. Urban area and agricultural fields increased in from the upper toward the lower river watersheds. In addition to, a transformation of agricultural pattern into an institutional agriculture was characteristic in the middle and lower river basins. Water qualities of the Wangsuk river were usually better in the order of the upper, middle, and lower river, but they were fluctuated according to the site. Such fluctuation would due to self-purification of the river and land use pattern of the watershed as the non-point source. In this viewpoint, a strategy to manage the water quality in the level of watershed is urgently required.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2009년도 춘계 학술논문 발표대회 학계
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• pp.1-4
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• 2009

Construction automation and robotics are being introduced as an efficient alternative to overcome troubles caused by lack of skilled labors. To accomplish effective automated construction system, design for automation(DFA) should be performed in parallel with the development of core technologies such as control and sensing of robots. In Korea, the development of robotic crane-based construction automation(RCA) system is progressing, and the research group has recently developed newly designed steel joint to improve the efficiency of the system. However, performance of the new system should be examined prior to its application on construction sites. Therefore, This study analyzed performance of the new steel frame focused on its constructibility by carrying out mock-up test. As a result, the steel frame satisfied the standards of allowable stress and deflection. It also enables to reduce the time for installation.