• 교육녹색환경연구
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• 제2권1호
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• pp.69-79
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• 2002

This paper investigates the methodology to develop a layout of the simulator for measuring and evaluating human sensibility. Since the simulator layout is different from general building layouts in that it is organized in order to communicate systematically between facilities, laboratories to evaluate human sensibility and equipments to support experiments in simulator, two approaches based on eigenvector and cut tree are support to develop a simulator layout. Qualitative input data (relationship chart, space requirements for each laboratory and equipment) are obtained and transformed into quantitative data. The information obtained by two approaches provides several meaningful clues to generate the simulator layout. The simulator layout is presented based on the obtained information by two approaches. Extracted quantitative data by using eigenvector and cut tree are meaningful of generating the simulator layout.

• Asian Pacific Journal of Cancer Prevention
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• 제14권9호
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• pp.4965-4972
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• 2013

This study aimed to discuss the consumption of alcohol as a risk factor for major cancers. We performed a search in the PubMed database, using the following inclusion criteria: meta-analysis published in English in the last 10 years that addressed the relationship between alcohol and the risk of developing cancer. The results indicate that moderate to heavy consumption of alcohol increases the risk of developing cancer of the oral cavity and pharynx, esophagus, stomach, larynx, colorectum, central nervous system, pancreas, breast and prostate. This review did not find any association between alcohol consumption and an increased risk of cancers of the lung, bladder, endometrium and ovary. It was also observed that alcohol consumption may be inversely related to thyroid cancer. Our systematic review has confirmed consumption of alcohol as a risk factor for the development of several types of cancer.

• 한국가정과교육학회지
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• 제6권2호
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• pp.41-58
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• 1994

The purpose of this study was to investigate the sex consciousness, sex problems and sex education of adolescence emphasizing the validity and necessity for the systematic enforcement of sex education. For this purpose, a questionnaire representing six categories, the relationship, with the opposite sex, sexual knowledge, sex consciousness, sex morality, sex problems, and sex education, was developed by the researchers. The subjects of this study was 224 middle school students and 267 hight school students in Seoul. Sex ratio of these subjects was about the same; For the satistical analysis of the collected data, frequency, Chi-square, and severed one way ANOVA’s and two way ANOVA’s were performed.05 was used as a significance level in this study. The most important findings in the study showed that most of the students wanted the systematic sex education in school, especially by the professionals in the sex education field.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제45회 하계 정기학술대회 초록집
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• pp.263.2-263.2
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• 2013

We report a systematic investigation of a set of macrophotoinitiators for use in polymerization-based signal amplification. To test the dependence of photopolymerization responses on the number of photoinitiators localized per molecular recognition event, we gradually increased the number of photoinitiator molecules coupled to a scaffold macromolecule. Macrophotoinitiators constructed with an average of 7 to 168 photoinitiators per polymer with the goals of quantifying the relationship between the number of initiators per binding event and the degree of amplified colorimetric readout. To evaluate the capacity of the macrophotoinitiators to detect molecular recognition, neutravidin was coupled to these molecules to recognize biotin-labeled DNA immobilized on biochip test surfaces. Fluorescein macroinitiators are found to be useful in detecting molecular recognition above a threshold of initiators per polymer. Above this threshold, increasing the number of initiators per macroinitiator resulted in increased signal strength.

• Bulletin of the Korean Chemical Society
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• 제16권9호
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• pp.845-850
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• 1995

A systematic method is presented to analyze the bandgaps of conjugated polymers in terms of geometrical relaxations and electronic effect of moieties using the equation of Eg=ΔEδr + ΔE1-4 + ΔEel. The relationship between ΔEδr and δr is derived from trans-PA and is transferred to other conjugated polymeric systems. By applying this method to heterocyclic polymers, very useful information is obtained to understand the evolution of bandgaps of PT, PPy and PF in connection with the chemical structures and electronic effect of the heteroatoms. We believe that this method is very helpful to understand the evolution of bandgaps of various conjugated polymers in connection with the chemical structures and electronic effect of moieties. Also, the method is expected to provide valuable information to design a small bandgap polymers.

• Animal Systematics, Evolution and Diversity
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• 제8권2호
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• pp.189-200
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• 1992

우리나라에 분포하고 있는 재래꿀벌(Apis cerana)의 일벌을 대상으로 춘계 15지역 및 하계 16지역 개체군을 선발하였으며, 총 47개 정량형질에 대해 계절별, 지역별등의 요인에 의해 군분석(cluster analysis)을 실시하였다. 그 결과 각 계절별 구분은 명백하게 나타났으나, 유사도에 있어서는 인접지역간 유연관계를 계통적으로 보여주지는 않았다.

• Journal of Smart Tourism
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• 제3권3호
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• pp.17-27
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• 2023

This study examines the scientific publications on website evaluation in hospitality and tourism from 2010 to 2023 through a systematic review and discusses implications for future research. The reviewed literature from publication years, journals, research methods, website-related stakeholders, context, various forms of Internet presence (Internet forms), and theories are analyzed to create a comprehensive website evaluation dimension. Furthermore, a conceptual framework is developed to show the relationship between the website characteristics, stakeholders-channels interaction, and stakeholders' reactions. The proposed website evaluation framework in hospitality and tourism synthesizes the existing knowledge, identifies gaps, and further advances our understanding of this research area.

• Asia pacific journal of information systems
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• 제30권2호
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• pp.420-438
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• 2020

Recently, with the advance of the wireless Internet access via mobile devices, a myriad of game development companies have forayed into the mobile game market, leading to intense competition. To survive in this fierce competition, mobile game developers often try to get a grasp of the rapidly changing needs of their customers by operating their own official communities where game users freely leave their requests, suggestions, and ideas relevant to focal games. Based on the heuristic-systematic model (HSM) and the data quality (DQ) framework, this study derives key content, non-content, and hybrid cues that can be utilized when game developers accept suggested postings in these online communities. The results of hierarchical multiple regression analysis show that relevancy, timeliness, amount of writing, and the number of comments are positively associated with mobile game developers' knowledge adoption. In addition, title attractiveness mitigates the relationship between amount of writing/the number of comments and knowledge adoption.

• 경영과정보연구
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• 제12권
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• pp.137-160
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• 2003

The association between accounting earnings and the stock price of an entity is the subject that has been most heavily researched during the past 25 years in accounting literature. Researcher's common finding is that there are positive relationships between accounting earnings and stock prices. However, the explanatory power of accounting earnings which was measured by $R^2$ of regression functions used was rather low. To be connected with these low results, The prior studies propose that there will be additional information, errors in variables. This study investigates empirically determinants of earnings response coefficients(ERCs), which measure the correlation between earnings and stock prices, using earnings level / change, as the dependent variable in the return/earnings regression. Specifically, the thesis tests whether the factors such as earnings persistence, growth, systematic risk, image, information asymmetry and firm size. specially, the determinable variables of ERC are explained in detail. The image / information asymmetry variables are selected to be connected with additional information stand point, The debt / growth variables are selected to be connected with errors in variables. In this study, The sample of firms, listed in Korean Stock Exchange was drawn from the KIS-DATA and was required to meet the following criteria: (1) Annual accounting earnings were available over the 1986-1999 period on the KIS-FAS to allow computation of variables parameter; (2) sufficient return data for estimation of market model parameters were available on the KIS-SMAT month returns: (3) each firm had a fiscal year ending in December throughout the study period. Implementation of these criteria yielded a sample of 1,141 firm-year observation over the 10-year(1990-1999) period. A conventional regression specification would use stock returns(abnormal returns) as a dependent variable and accounting earnings(unexpected earnings) changes interacted with other factors as independent variables. In this study, I examined the relation between other factors and the RRC by using reverse regression. For an empirical test, eight hypotheses(including six lower-hypotheses) were tested. The results of the performed empirical analysis can be summarized as follows; The first, The relationship between persistence of earnings and ERC have significance of each by itself, this result accord with one of the prior studies. The second, The relationship between growth and ERC have not significance. The third, The relationship between image and ERC have significance of each by itself, but a forecast code doesn't present. This fact shows that image cost does not effect on market management share, is used to prevent market occupancy decrease. The fourth, The relationship between information asymmetry variable and ERC have significance of each by. The fifth, The relationship between systematic risk$(\beta)$ and ERC have not significance. The sixth, The relationship between debt ratio and ERC have significance of each by itself, but a forecast code doesn't present. This fact is judged that it is due to the effect of financial leverage effect and a tendency of interest.

• 디지털융복합연구
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• 제16권12호
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• pp.175-183
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• 2018

본 논문의 연구목적은 국내 회사채시장에서 시장전체의 체계적 위험 (systematic risk)과 각각의 고유위험(idiosyncratic risk)이 회사채 수익률에 미치는 영향을 분석하고자 한다. 2001년부터 2014년까지 채권시장의 자료를 분석하기 위해, 본 연구는 체계적 위험의 대용변수로 기존의 연구에서 사용된 회사채수익률 기간구조 요인(term factor)과 지급불능 요인(default factor) 등을 사용하고, 고유위험의 대용변수로 듀레이션(duration)과 신용평가등급 요인을 선정하였다. 이러한 요인들이 채권의 수익률에 미치는 영향력을 횡단면 회귀분석을 통해 분석한 결과, 체계적 위험과 관련된 요인들은 통계적 설명력이 있는 것으로 나타났다. 반면에 회사채 고유위험과 관련된 요인들은 기존의 국내 연구와 달리 회사채 수익률을 통계적으로 설명하지 못하는 것으로 나타났다. 이러한 결과는 본 연구의 분석기간이 기존 연구의 7년 자료보다 긴 14년간의 자료를 사용하고 최근의 기간까지 확장했다는 점 때문에, 오히려 미국의 연구결과와 유사한 것으로 나타났다. 이는 우리나라 채권시장이 IMF사태 이후 국제화가 확대되어 선진국과 동조현상을 보이는 것으로 해석된다. 따라서 본 연구는 국내 채권투자시장에서도 선진국의 경우와 마찬가지로 개별 채권의 특성보다는 채권시장 전체의 위험에 보다 더 집중해서 투자할 필요가 있다는 점을 제시하고 있다.