• 한국복합재료학회:학술대회논문집
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• 한국복합재료학회 2001년도 추계학술발표대회 논문집
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• pp.179-182
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• 2001

Impacter tester was build of to evaluate the characterization of non-flamable Glass/phenol laminate plates under the low velocity impact. The damage of composite laminates are matrix cracking, delamination, and fiber breakage for impact energy. In this study, this is to find impact properties of Glass/phenol in used in a forehead part of lighting subway. To determine impact damage characteristics which is made in a laminate, use the UT C-scan after- macrography. And then evaluated the reduction of strength in a rate of impact energy with CAI(Compression After Impact) test

• 기술사
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• 제34권3호
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• pp.64-67
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• 2001

In resent the weight of structure is heavier and bigger than before. Engineers use many heavy equipments to erect buildings and bridges. The heavy equipment is very useful to lift any weight. But most engineers do not know the impact of the weight when the equipment lifts the weight. In this study one researched into the impact of the weight in the crane work which lifts the weight in the construction site. Also along the number of pulley sheave the impact of the weight was researched. From the impact field test the impact coefficient of a single pulley sheave crane was 0.65 and the four pulley sheaves crane was 0.13. The result shows that the impact coefficient of a single pulley crane is more than 5 time of the impact coefficient of the four pulley sheaves crane and that engineers must consider the impact effect of the crane work in the construction site.

• 한국도시환경학회지
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• 제18권4호
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• pp.419-428
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• 2018

본 연구는 도시개발로 인하여 농촌에서 도시로 급격한 토지이용 변화를 겪은 신도시 지역의 수문변화 예측과 저감방안 도출을 목적으로 하였다. 대표농도경로(Representative Concentration Pathway, RCP) 기후변화 시나리오로 2100년까지 분석결과 강수량 증가가 유출고 증가에 직접적으로 기여함을 알 수 있었다. 기후변화와 함께 도시 용지 형태도 저영향개발(Low Impact Development; LID) 기법으로 적용한 식생체류지의 효율에 영향을 미쳤다. 서로 다른 도시 시설 용지를 결합하면 각 시설 용지 별 차이가 있는 저류 가능 강수량을 보완할 수 있고 첨두유출량 경감과 도달시간 지체를 유도할 수 있어 도시개발로 인한 수문 영향을 완화시킬 수 있는 새로운 접근이 될 수 있음을 제시하였다.

• 환경영향평가
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• 제17권4호
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• pp.255-262
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• 2008

For the Han-river estuary and DMZ where white-naped crane (Grus vipio; endangered migratory bird) stopover or spend winter, the habitat composition and the habitat use pattern of white-naped crane were analyzed with the position data obtained by the satellite tracking method. By the use of geographic information system (GIS), the percent composition of seven habitat categories of white naped-crane data points (n=228) was analyzed. The chi-square test showed that the white-naped crane habitat use pattern was significantly different (p<0.05) from that of random points (n=228). It means that white-naped crane select and use particular habitat area in the Han-river estuary and DMZ.

• Journal of Information Technology Applications and Management
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• 제16권2호
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• pp.65-77
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• 2009

This study explores the major factors that are likely to affect the acceptance and resistance of innovative products and services. The TAM (Technology Acceptance Model) has been widely used for understanding consumer acceptance of new technology. This model displays perceived usefulness and perceived ease of use as antecedents of intention to adopt and use. However, research has reported a variety of preceding variables for technology acceptance. In addition, considering paradoxes of technology, research regarding both acceptance and resistance in an integrated model can explain consumer perception and behavior in detail. The results of this study states that relative benefits, degree of innovation in technology, perceived usefulness and perceived ease of use have had positive influence on the intention to adopt but negative impact on that of resistance. However, alterations of usage and perceived risk positively affects resistance, but also have negative effects on the intention to adopt. Finally, intention to adopt has comparatively greater influence than that of resistance on intention to use. Theoretical and managerial implications of the results are also discussed.

• 한국정보시스템학회지:정보시스템연구
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• 제10권1호
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• pp.217-241
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• 2001

Groupware technologies have become an important part of the business computing infrastructure in many organizations, but many groupware applications, especially those requiring significant collaboration among users, are still nut adequately used. The purpose of the paper is to explore the impact of groupware on the job performance. Recently, utilization of new information technology such as groupware can increase office productivity, but often this potential is not realized. Results of most studies indicate that groupware could increase the productivity of knowledge workers, who compose the majority of the labor force in the organization. The study on the impact of job characteristics on groupware and job performance is not sufficient. This study examines the influence of job characteristics such as job diversity, autonomy, and feedback on the use of groupware and job performance. In addition to that, this study examines the influence of the use of groupware on job performance. The results of regression analyses revealed that feedback was the major predictor of job performance, while autonomy and job diversity were the Haler predictors of the use of groupware. Also, the use of groupware were found to be important predictors of job performance.

• 한국정보시스템학회지:정보시스템연구
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• 제10권1호
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• pp.279-301
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• 2001

This study was examined empirically the relationship between exogenous and endogenous variables to use internet shopping malls. Exogenous variables in our model are retrieval simpleness, quality of order treatment, web reputation, update and system quality and endogenous variables are perceived usefulness, perceived ease of use and intention of using internet shopping malls. The results of the path analysis are shown as follows. All exogenous variables have a direct effect on perceived ease of use while both retrieval simpleness and update has a direct effect on perceived usefulness. The perceived ease of use has a direct effect on the intention of using internet shopping malls and has a indirect effect on the intention through perceived usefulness. Especially, web reputation among the exogenous variables has the strongest impact on the perceived ease of use and retrieval has the strongest impact on the perceived usefulness.

• 대한간호학회지
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• 제41권2호
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• pp.236-244
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• 2011

Purpose: In this study the impact of pro-environmental behavior, well-being oriented behavior, and use of cloth menstrual pads on dysmenorrhea in Korean female adults was examined according to the theory of reasoned action. Methods: A cross-sectional study was conducted with 195 Korean female adults. Data were collected from June to August, 2010 using self-report questionnaires. Data were analyzed using t-test, one-way ANOVA, Pearson correlation coefficients, multiple regression, and logit regression with STATA 10.0. Results: Pro-environmental behavior explained 48% of well-being oriented behavior. Well-being oriented behavior explained 10% of cloth pad use. Use of cloth pad explained 4% of dysmenorrhea and 5% of menstrual pain. The path through well-being oriented behavior had a significant effect from pro-environmental behavior to cloth pad use. Conclusion: Use of cloth pad was significantly related with well-being oriented behavior, pro-environmental behavior, social influence, dysmenorrhea, and menstrual pain. The results of this study suggest that pro-environmental strategies can help health care providers diminish clients' menstrual symptoms. Nursing intervention can support pro-environmental behavioral strategies.

• 한국환경생태학회지
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• 제3권1호
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• pp.81-94
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• 1989

가야산국립공원 등산로 및 야영장의 훼손과 주변 자연환경에 대한 이용영향을 파악하기 위해 1989년에 조사를 실시하였다. 등산로폭, 나지노출폭 및 최대 깊이는 이용강도에 따른 차이가 인정되었고, 전체 51개 조사지 점에서 관찰된 훼손형태는 매우 다양하였으며, 훼손된 지점의 등간로 상태중 최대깊이와 등산로물매는 건전한 지점의 상태와 유의한 차이를 보였다. 등산로주변 토양 및 식생인자의 변화경향을 이용영향의 형태에 따라 구분하여 파악할 수 있었고 등산로주변부에 미치는 이용영향은 약 15m에 이르는 것으로 생각된다. 야영장의 훼손은 심각하여 피해도 5등급의 비율이 약 36%이었고 3등급이상인 지역도 약 69%에 달하였다. 야영장에서의 이용활동이 수목의 직경생장을 크게 저해하는 것으로 나타났으며. 종구성의 이질화를 극심하게 진행시키고 있었다. 야영장의 이용강도의 차이나 이용영향의 범위를 파악하는데 적합한 토양 및 식생인자들을 확인할 수 있었으며, 이용간섭의 영향범위는 약 50m이었다. 야영행위에 대한 내성수종은 물푸레나무, 개옻나무, 노린재나무, 국수나무 등이었다.

• 스마트미디어저널
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• 제12권1호
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• pp.62-76
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• 2023

사용자가 경험할 수 있는 차원이나 경험 요소들의 특성을 이해하는 것은 박물관 모바일 애플리케이션 사용자 경험을 디자인할 때 매우 중요한 일이다. 본 논문은 박물관 모바일 애플리케이션의 사용과 관련된 경험에 대한 일련의 실험연구와 분석을 통하여 4가지 차원과 19가지 요소로 구성된 박물관 모바일 애플리케이션의 사용자 경험 프레임워크를 도출하고, 타당성도 검증하였다. 연구에 의하면 이들 4가지 사용자 경험 차원은 모두 애플리케이션 사용 만족도에 긍정적인 영향을 미쳤으나 각 차원의 미치는 영향 정도는 각기 달랐다. 본 논문의 실험에서는 4가지 차원 중 사용감성과 사용편의성이 가장 큰 영향을 미치며 사용유용성과 기능다양성은 상대적으로 적은 영향을 미치는 것으로 분석되었다. 또한 실험 결과를 통해 애플리케이션의 사용 경험이 사용자의 향후 추천이나 지속 사용의도, 또는 박물관의 실제 관람에 영향을 줄 수 있음을 확인하였다.