• Proceedings of the SOHE Conference
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• 1999.10a
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• pp.117-118
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• 1999

• Proceedings of the SOHE Conference
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• 1999.10a
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• pp.126-128
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• 1999

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.14 no.4
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• pp.161-178
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• 2019

The purpose of this study is to analyze the effect of characteristics of the online shopping mall website and the service quality factors required on the online service on the reliability and repurchase intention. Through this, the key customer response service and operation management strategy can be proposed for the growth of kidult online shopping mall which is continuously spreading. Also, implications for development direction can be suggested. For this purpose, the ES-QUAL and E-Rec-S-QUAL factors proposed by Parasuraman et al.(2005) were set as independent variables, as well as professionalism, diversity, playfulness, and personalization, and website reliability as a mediating factor, and repurchase intention as a dependent variable. For the analysis, a structured questionnaires survey was conducted to 200 domestic online shopping mall users. The main results are as follows. First, the professionalism, personalization in the characteristics, and service quality factors had positive effects on website reliability. Second, playfulness, personalization in the characteristics, and service quality factors had positive effects on repurchase intention. Third, website reliability had a positive effect on repurchase intention. Fourth, website reliability was found to mediate the relationship between predictive (independent) variables and dependent variables. The above results show that if a professional online shopping mall is equipped with online service quality and establish personalization through enhancing the professionalism, the online shopping mall can form a website reliability and expect to build continuous relationship with customers. In addition, implications can be suggested for future customer response service and operation management strategies.

• Journal of the Korea Convergence Society
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• v.13 no.2
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• pp.223-233
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• 2022

In addition to optimistic bias which can be a biased phenomenon in perceived susceptibility, including illusion of control which is a distorted phenomenon, the current study attempted to demonstrate the influential relationship between these two important variables and COVID 19 personal preventive behaviors and social distancing practice. Conducting Survey utilizing online pannel from Macromill Embrain, the present study performed regression analysis, setting personal preventive behavioral variables such as mask wearing, hand washing, using hand sanitizer as independent variable, and analyzed how these independent variables influence control illusion and optimistic bias. As a result, COVID 19 personal preventive behavior didn't have direct effect on optimistic bias and control illusion except for hand washing. Finding, also, showed that control illusion affected optimistic bias, and the relation between these variables was different depending on demographic variable such as gender and age.

• Korean Journal of Culture and Social Issue
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• v.14 no.1_spc
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• pp.153-166
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• 2008

The purpose of this study was to investigate middle school student's self-directed learning(SDL) using a hierarchical linear modeling. By considering variances of SDL at individual and school level, the student's SDL was explained in terms of school quality as well as individual efforts. For the HLM analysis, participation in private tutoring, teacher's support for SDL, caring students' individual needs, and participation in extra curriculum activities were explored at individual level. At school level, school SES, quality of national curriculum implementation, and parental support for school were utilized. The results of analysis showed that more than 95% of variance of SDL was explained by variables at individual level. Among the variables at individual level, private tutoring was not a significant variable explaining the SDL. Based upon the results, multiple regression analyses by background variables were also conducted. By interpreting the results of analyses, the impact of school quality and individual efforts on the SDL was discussed.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.49 no.6
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• pp.539-545
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• 2004

The purpose of this study was to locate the quantitative trait loci (QTL) associated with quality properties in the recombinant inbred lines derived from the 'Milyang 23' and 'Gihobyeo' cross. Four quality-related traits; protein content, amylose content, fat acid content and sensory value were measured. Eight QTLs for protein content were detected on chromosomes 1 (two loci), 3, 6, 7 and 8 (three loci), each accounting for $6.0\%\~15.2\%$ of the phenotypic variation. Three QTLs for amylose content were detected on chromosomes 6 and 7 (two loci), each explaining from $7.3\%\;to\;24.4\%$ of the phenotypic variation. Six QTLs for fat acid content were detected on chromosomes 2 (two loci), 3, 6 (two loci) and 7, each explaining form $5.5\%\;to\;14.0\%$ of the phenotypic variation. Six QTLs for sensory value were detected on chromosomes 2, 6, 7(two loci) and 8 (two loci), each accounting for $5.5\%\~10.3\%$ of the phenotypic variation.

• The Journal of the Korea Contents Association
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• v.18 no.10
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• pp.298-305
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• 2018

The objective of this present study was to investigate the overall effects of strategy instruction on Korean students' English language learning. In order to do so, 55 individual experimental results in 46 journal articles were collected, and a meta-analysis was carried out to them. This study also analyzed the results of studies on strategy instruction according to various variables such as school types, treatment periods, and types of dependent variable. The mean effect size of strategy instruction in English language teaching is .536, which means the medium effects in general. No statistically significant differences were found among various moderators and dependent variables. Based on these results, suggestions for further research are discussed.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.20 no.3
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• pp.20-27
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• 2006

Power line for digital home appliances has own property that transmitting power connected to loads. Especially, power line communication(PLC) for the home network which has characteristics of load fluctuation makes variable noise characteristics. It becomes serious problems to maintain efficient communication performance. Thus, in this paper, we present an optimal modulation and demodulation method through mathematical analysis of each measured load fluctuation based on PLC for home appliances. To analyze and compare various modem methods presented in this paper, we analyzed them normally via computer simulation under various noise channel environments according to various load fluctuations. In addition, we certified its availability through hardware implementation.

• The Korean Journal of Zoology
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• v.35 no.4
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• pp.497-504
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• 1992

한국특산종인 Colitis rotundicuudutu의 지리적 변이를 전국 5개 집단 132개체를 대상으로 조사하였다. 4개 집단의 계측형질로 본 다변량분석 결괴 산청집단은 타 집단과 형태적 차이가 있었다 전기영동으로 조사된 5개 집단의 평균 유전적 변이 정도는 A=1.48, P=37. IpA, HD=0. 139, 및 H6=0. 124로 변이 정도가 타 어류에 비하여 비교적 높았다. 5개 집단의 평균 유전적 근인치(S)는 0.83으로 낮았으나 산청집단을 제외한 4개 집단의 근연치는 0. 91로 매우 가까웠다. 반면 산청집단은 나머지 집단과 형태적으로나 유전적으로 유의한 차이가 나타나는 것으로 보아 산청집단의 별종 가능성이 매우 높음을 시사한다. 앞으로 보다 면밀한 연구로 산청집단의 별종 여부를 명백히 구명하여야 할 것이다.

• The Korean Journal of Zoology
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• v.36 no.1
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• pp.14-20
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• 1993

한국산 도룡농, Hvnobius leechii의 7개 집단에서 mitochondrial DNA(mtDNA)의 변이가 조사되었다. MtDNA의 크기에서의 차이는 관찰되지 않았으나 제한효소 인식 부위에서의 차이가 조사되었다. MtDNA의 절편 양상은 각 집단에서 동일하게 나타났다. 제한 효소로 처리하여 얻어진 절편의 비교에서 종내 변이는 염기 치환에 의하여 발생한 것임이 분석되어졌다. 특히 하동과 제주 집단은 몇개의 제한 효소 인식 위치에서 나머지 5개 집단과 뚜렷한 차이를 보였다. 염기치환율(p값)은 공통 절편 비율(p값)을 토대로 하여 얻어졌으며 그 값은 0.004에서 0.064의 범위 내의 값으로 측정되었다. 하동과 제주 집단을 제외한 5개 집단의 비교에서는 비교적 낮은 침의 염기 치환율을 보였으나 제주와 나머지 집단들과의 비교에서는 염기치환율이 높게 측정되었다. 염기 치환율과 관련지어 염기 분화 연대를 측정한 결과 도룡뇽 7개 집단은 3개의 group으로 나뉘어 졌으며 이들은 약 188만년전에 분화된 것으로 사료되어 진다.