• 대한인간공학회지
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• 제18권3호
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• pp.87-103
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• 1999

The present study employed an experimental usability testing technique to explore cognitive engineering characteristics of WWW. Based on the results of our previous study which employed non-experimental methods such as questionnaire and heuristic evaluation method, this study used a behavioral performance-measurement technique to evaluate the usability of a domestic web-site design. Specifically, we revised the menu and document structure of the original 'Movie-Friend' site to solve the design problems which were extracted from the results of the heuristic evaluation method of our previous study. Exp. 1 compared the relative navigation efficiency of the original frame menu site and the revised pop-up toolbar site, and Exp. 2 compared the toolbar menu site and the revised frame site. As a result of Exp. 1, the revised pop-up toolbar site showed improved navigation efficiency compared to the original site, as indicated by the mean latency and the number of pathways to reach the target page. However, we found no performance difference between the frame site and toolbar site in Exp. 2.

• 한국환경과학회지
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• 제31권9호
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• pp.793-801
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• 2022

This study was carried out to provide basic data for logical forest management by developing a site index curve reflecting the current growth characteristics of Cryptomeria japonica stands in Korea. The height growth model was developed using the Chapman-Richards, Schumacher, Gompertz, and Weibull algebraic difference equations, which are widely used in growth estimation, for data collected from 119 plots through the 7th National Forest Inventory and stand survey. The Chapman-Richards equation, with the highest model fit, was selected as the best equation for the height growth model, and a site index curve was developed using the guide curve method. To compare the developed site index curve with that on the yield table, paired T-tests with a significance level of 5% were performed. The results indicated that there were no significant differences between the site index curve values at all ages, and the p-value was smaller after the reference age than before. Therefore, the site index curve developed through this study reflects the characteristics of the changing growth environment of C. japonica stands and can be used in accordance with the site index curve on the current yield table. Thus, this information can be considered valuable as basic data for reasonable forest management.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 세계 도시지반공학 심포지엄
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• pp.755-760
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• 2009

It is essential to carry out site investigations such as SPT, CPT sampling etc. to understand the characteristics of soil deposits. However, the results deduced only from the engineering standpoint have limited information to fully understand ground characteristics. In this study, it is discussed site investigation results on Youngjong deposits obtained from not only the geotechnical standpoint, but also geotechnical and geological mixed standpoint to understand correct characteristics of Youngjong soil deposit.

• 벤처창업연구
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• 제8권4호
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• pp.25-35
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• 2013

본 연구는 벤처기업의 웹사이트에 대한 신뢰의 선행요인과 결과요인의 구조적 관계를 확인하고 웹사이트에 대한 신뢰, 만족도 및 행동의도에 영향을 주는 선행변수를 밝히고자 하였다. 이를 위해 대학생 123명을 대상으로 3개의 벤처기업의 웹사이트에 대한 과제 수행을 하도록 한 후 방문 웹사이트에 대한 지각을 측정하였다. 그 결과 첫째, 벤처기업의 웹사이트의 특성을 측정하기 위한 문항들에 대한 요인분석결과, 웹사이트의 디자인, 비즈니스 기능의 지원, 인터페이스, 기술, 커뮤니티, 콘텐츠의 6개 요인이 추출되었다. 둘째, 벤처기업의 웹사이트 특성 6개 요인을 선행변수로, 웹사이트의 신뢰도, 만족도 및 행동의도 의 3개 요인을 내생요인으로 한 모형을 구성하여 관계구조 모형에 대한 검증을 시도하였다. 공분산 구조분석 결과, 전반적 부합지수들은 비교적 양호하게 나타났으며, 경로도형에서는 웹사이트의 디자인, 인터페이스, 기술 및 커뮤니티의 요인들이 웹사이트의 만족도로 가는 경로가, 그리고 디자인과 콘텐츠가 웹사이트의 신뢰도로 가는 경로에서 유의하게 나타났다. 내생요인간의 경로는, 만족도는 행동의도에 영향을 주는 것으로 나타났으나 웹사이트의 신뢰도는 만족도의 매개역할을 통해 행동의도에 영향을 주는 것으로 나타났다. 이러한 결과를 기초로 쇼핑몰 운영에 있어서의 시사점을 논의하였다.

• 한국컴퓨터정보학회논문지
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• 제8권1호
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• pp.76-83
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• 2003

고객 충성도 향상을 통해 이익 증대를 도모하는 CRM 기술은 기업의 중요 전략중 하나인 동시에, 교육용 사이트의 CRM 특성 평가는 CRM 적용 활성화를 위하여 필수적 항목이라 할 수 있다 따라서 본 연구에서는 CRM 기술의 정의 및 특성. 웹사이트 평가 동향을 분석한 후 최근의 정량적 전역 평가 방법론인 Web-site QEM을 이용하여 CRM 특성 평가 모델을 설계한다. 이에 현재 운영 중인 교육용 사이트의 CRM 특성 서비스 내용을 비교하고, 학생 사용자 관점에서 고객 충성도와 고객 만족도를 향상시키기 위한 CRM특성에 대한 평가 기준과 정량적 모델을 제안한다. 제안된 평가 모델의 일부를 운영중인 교육용 사이트에 적용하여 결과 값을 제시한다.

• 공학교육연구
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• 제21권5호
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• pp.40-53
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• 2018

The purpose of this study was to investigate the factors affecting the satisfaction of the program for the quality improvement of the long-term on-site training operated by the university. The survey questionnaire data of 393 students who participated in the IPP program of K university were used to analyze the data and the results were as follows: First, factors affecting the satisfaction of long-term on-site training were corporation factors and university factors. Specifically, job contents, coaching, job scope, center support were found to have a significant effect in that order. Second, the factors affecting the satisfaction of long-term on-site training were different according to group characteristics(IPP participation types, major types, corporation types). It is necessary to intensively manage the common and important corporation factors, and it is necessary to closely examine each factor derived from group characteristics, and to support and strive at university level according to group characteristics in student counseling and matching.

• 한국환경과학회지
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• 제5권6호
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• pp.763-770
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• 1996

This study was performed to analyze the variation characteristics of writer qulity, correlation analysis of water quality data at each site and among the items of water Quality data. Water quality for analysis was monthly values of water temperature, pH, dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, suspended solid, 7-N and T-P checked in Daecheong Lake from January to December, 1995. It was analyzed variation of monthly water qulity was well from February to April, water temperature and COD seemed to have high correlationships at all sites. Regression equation is COD = 0.07 Water temperature +1.23 ($R^2$: 0.7616) . Results of the correlation analysis of water quality data showed that DO had high correlationships between site 1 and site 2, BOD did site 1 and 3, COD did site 1 and 2, 55 did site 5 and 6, 7-N did 2 and 3, 7-P did site 4 and 6. Regression equations for estimate of water quality data are as follows. $DO_1$=4.46+0.59 DO, ($R^2$=0.8868), $BOD_1$ = 0, 52+0.63 BOD3 ($R^2$ = 0.6390) $COD_2$ = 0.44+0.71 $COD_1$ ($R^2$ = 0.9183), SS6 = 0.89+0.7055.($R^2$ = 0.9155) $TN_3$ = 0.151 +0.886 $TN_2$ ($R^2$ = 0.9415), $TP_4$ = 0.004+5.758 $TP_6$ ($R^2$ = 0.9669)

• 한국지진공학회논문집
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• 제3권4호
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• pp.1-10
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• 1999

지진 시 지반의 자유장 운동은 국지적 지반조건에 의하여 크게 영향을 받으며 내진설계에 앞서 지반조건을 고려한 부지응답특성평가를 수행하여야 한다. 본 논문은 부지고유의 지반거동 평가를 위하여 필요한 절차를 국내 내진기준과 외국의 기술현황 조사를 바탕으로 제안하였다. 부지응답특성 평가의 개요를 설명하고 1차원 등가선형 해석에 필요한 지반자료 획득을 위한 지반조사계획 기반조사기법, 저변형율 및 고변형율 영역에서의 지반의 변형거동특성, 현장 및 실내시험결과를 이용한 부지특성평가방법들을 제안하였다 또한 제안된 절차를 따라 수행된 인천 지역의 부지특성평가방법들을 제안하였다 또한 제안된 절차를 따라 수행된 인천 지역의 부지응답특성평가 예를 포함하였다.

• Journal of Radiation Protection and Research
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• 제26권3호
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• pp.305-309
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• 2001

Site-specific atmospheric dispersion characteristics have been analyzed. The northwest and the southwest wind prevail on nuclear sites of Korea. The annual isobaric surface averaged for twenty years around Korean peninsula shows that west wind prevails. The prevailing west wind is profitable in the viewpoint of radiation protection because three of four nuclear sites are located in the east side. Large scale field tracer experiments over nuclear sites have been conducted for the purpose of analyzing the atmospheric dispersion characteristics and validating a real-time atmospheric dispersion and dose assessment system FADAS. To analyze the site-specific atmospheric dispersion characteristics is essential for making effective countermeasures against a nuclear emergency.

• 한국항해학회지
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• 제20권3호
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• pp.97-105
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• 1996

Authors have studied characteristics evalution on semianechoic chamber. And authors also find that in case of low frequencies like from 30MHz to 100MHz there are big differencies between the calculated and the measured site attenuation in semianechoic chamber made with ferrite grid. This is on account of not being considered the mutual coupling effects between two antennas. Accordingly Authors calculated site attenuation due to mutual coupling effects and compared the measured site attenuation with the calculated site attenuation with mutual coupling correction. As a result good agreement between site attenuation, measured or calculated is obtained.