• The Journal of Information Systems
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• v.20 no.1
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• pp.21-40
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• 2011

웹이라는 환경은 다양한 정보원천을 생성해냈고, 온라인 소비자는 시간과 노력의 비용을 줄여 보다 합리적인 의사결정을 하기 위하여 웹 정보탐색을 한다. 특히 인터넷 환경은 정보를 획득하는 비용을 낮춤으로써 유용한 정보원천의 역할을 수행하고 있다(Bakos, 1997; Bar-Ilan, 2001). 그러나 너무 많은 정보는 오히려 소비자들의 의사결정을 방해할 수 있는데, 이때 소비자들은 정보원천에 대한 인지경향, 즉 신념수준을 가지고 자신에게 필요한 정보를 취사선택하게 된다(Schuman and Johnson, 1976). 이러한 관점에서 온라인상에서의 구매의사결정과 관련해서 주요하게 참조되는 정보원천을 파악하는 것은 의미있는 일이라 할 수 있다. 이에 본 연구에서는 사전조사를 통해 온라인 주요 정보원천으로 온라인 구매경험, 온라인 구전정보, 판매자 정보를 도출하였다. 그리고 이러한 정보원천이 제품만족, 정보만족에 미치는 영향관계를 알아보고, 이어서 정보만족과 제품만족이 인터넷 쇼핑몰에 대한 소비자의 전반적인 만족에 미치는 영향을 살펴보았다. 분석결과, 온라인 정보원천의 모든 변수들이 정보만족에 유의한 영향관계를 갖는 것으로 나타났으며, 제품만족과의 관계에서는 판매자 제공정보가 유의하지 않게 나타났다. 또한 정보만족과 제품만족 모두 소비자의 전반적인 만족에 유의한 영향을 미치는 것으로 나타났다. 이와 같은 결과는 온라인상에서의 정보의 중요성을 입증하는 것으로, 온라인 소비자의 정보원천에 대한 이용과 평가를 이해하는데 새로운 시각을 제공해주고, 정보원천에 대한 관리와 활용에 관한 실무적 시사점을 제시해 줄 것으로 기대된다.

• Journal of the Korean Institute of Gas
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• v.21 no.4
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• pp.6-15
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• 2017

Process safety management(PSM) system was implemented in Korea since 1996. It helps reduce and prevent the occurrence of chemical accidents. There has been no review on the feasibility of the threshold quantities of the existing 21 species and the newly added toxic substances such as hydrogen bromide in the PSM system. The threshold quantities of the target toxic substances(25 species) of PSM were compared with domestic and foreign PSM systems similar to those of Korea. Also, we proposed the toxic harmfulness and hazard equation consisted of inhalation toxicity, NFPA index and others. According to this equation, high risk, medium risk and low risk are classified and reflected in the adjustment of threshold quantities. From the above research, It is expected to help to reduce confusion and burden of the workplaces due to the difference from other PSM system and improve in the threshold quantities.

• Journal of the Korea Convergence Society
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• v.8 no.2
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• pp.53-62
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• 2017

This study was to find the factors influencing satisfaction of Korean medical tour services of Chinese college students. Structured questionnaire was developed to collect data. The data were collected from the 175 students between May 1 and May 15 in 2015 in an international college in China. The expectations and the evaluations on the Korean medical tour services were compare by t-test. To find the factors influencing satisfaction on Korean medical tour services, diverse linear regression models were estimated. According to the best fit regression model, technologies, quality of medical tour services, and health care cost significantly and positively influenced satisfaction on the Korean medical tour services. The results of the study suggested that we need to prepare marketing strategies to improve understandings on Korean medical tour services for the Chinese college students. Improvement of technology, improvement of quality of health service, and setting of reasonable price are important to attract more Chinese patients to Korea.

• Journal of the Korean Geosynthetics Society
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• v.14 no.4
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• pp.129-137
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• 2015

Recently, offshore wind farms are increasingly expected, because there are huge resource and large site in offshore. Jeju island has optimum condition for constructing a wind energy farm. Unlike the mainland, Jeju island has stratified structure distribution between rock layers sediments due to volcanic activation. In these case, it can be occur engineering problems in whole structures as well as the safety of foundation as the thickness and distribution of sediment under top rock layer can not support sufficiently the structure. One of the most obvious applications of the pressuremeter test is the solution of the problem of laterally loaded piles. A hyperbolic non-linear p-y criterion for rock is developed in this study that can be used in LPILE program, to predict the deflection, moment, and shear reponses of a shaft under the applied lateral loads. Finally, a comparison between the predicted and measured response at two different sites is shown to give an idea of the accuracy of the IFP method.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.7 no.1
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• pp.93-96
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• 1969

1. This experiment has been conducted to determine the most desirable method of the low-land rice seedling preservation for long defered transplanting and its results obtained are as follows: 1. On a viewpoint of the management, any method of seedling preservation was not effective when the seedling was transplanted after 20th, July. 2. Vegetative growth after transplanting was shown the most desirable at the plot of the seedling from direct-sowing dry paddy rice culture and next at the plot of the seedlings preserved on the vinyl seed bed. On the other hand, the leaf-cutting or the thinning out of seedling was not effective for the prevention of the seedling decrepitude. 3. On the case of transplanting on 20th July, the seedling from the direct sowing on dry paddy rice culture showed the best yield(378kg/10a) and the seedling preserved on the vinyl seed-bed showed the next (280kg/10a), however, on the case of transplanting on 30th July, the seedling from the direct sowing on dry paddy rice culture showed the best yield(222kg10a), but the yield of other preservation treatment was shown below 90kg/10a.

• Journal of the Society of Naval Architects of Korea
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• v.37 no.2
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• pp.1-13
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• 2000

In the present paper, an infinite-depth unified theory is applied to the computation of the linear and second-order hydrodynamic forces on slender bodies. No forward speed is assumed, which is valid for some types of ships, like FPSOs and shuttle tankers. Strip theory solution, which is essential for the extension to theory is extended to unified theory, was obtained using NIIRD program developed at MIT. The linear theory is extended to the computation of the second-order mean-drift forces and moment. Furthermore, Aranha's formular is applied to the prediction of wave drift damping coefficients. From this study, it is proved that unified theory provides an accuracy comparable with 3D panel method for the second-order forces as well as the linear solution with much less computational effort.

• Journal of the Korea Concrete Institute
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• v.23 no.4
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• pp.495-501
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• 2011

The load combinations in current KCI Design Code are determined with reference to those in ACI 318-05, which adopts the LRFD (load and resistance factor design) format. The load and resistance factors in LRFD format should be determined to meet the required levels of reliability index or probability of failure for various predetermined failure modes, which are also based on the statistical data reflecting locality and contemporary situation. However, the current KCI Design Code has been written utilizing foreign data, because of insufficiency in accrued data in Korea. This study considered the current safety levels of KCI Code based on published domestic data to evaluate appropriateness of the current KCI regulations. Based on the calibrated reliability index of the existing Code, the new resistance factors are suggested. The results presented in this paper can be considered as a basic research for establishment of unique design format for future Korean Codes.

• KDI Journal of Economic Policy
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• v.19 no.1
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• pp.3-50
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• 1997

경제자유화(經濟自由化)와 규제완화(規制緩和)라는 세계적인 흐름과 함께 우리나라도 1992년 이후 자본시장(資本市場)을 점진적으로 개방(開放)하고 있다. 본 연구에서는 우선 몇몇 핵심 거시경제변수(巨視經濟變數)들의 상관관계(相關關係)가 자본거래의 자유화와 더불어 어떻게 변화할 것인가에 대한 이론적(理論的)인 배경(背景)을 설명하고 있다. 여기에서는 무엇보다도 자본자유화(資本自由化)와 더불어 나타나게 되는 실질환율체상(實質換率切上)및 경상수지적자(經常收支赤字)의 의미를 합리적인 경제주체들이 자원(資源)을 보다 효율적(效率的)으로 배분(配分)하고자 하는 노력의 결과로 나타나는 현상으로 파악하고 있다. 즉 자본시장의 개방은 상대적으로 높은 국내의 자본생산성 및 실질이자율을 향한 해외자본의 유입(자본수지(資本收支)의 흑자(黑字))을 초래하며, 대외부문의 항등식을 고려하는 한 이는 경상수지(經常收支)의 적자(赤字)로 연결된다. 또한 본 연구에서는 신고전파적(新古典派的) 장기모형(長期模型)과 케인즈적(的) 단기모형(短期模型)에 기초한 거시경제 모형을 구성하고 자본자유화(資本自由化)의 속도(速度), 환율(換率)및 통화정책(通貨政策)의 변화에 따른 거시경제의 동태적(動態的) 시간경로(時間經路)를 계량화하고자 노력하였다. 예를 들어 경상수지적자(經常收支赤字)의 폭은 자본자유화의 추진속도 및 거시정책에 의존할 것이나, 예상하지 못한 큰 충격이 도래하지 않는 경우 향후 2~3년간 GDP 대비 3% 내외에 이를 것으로 추정되며, 그 이후에는 실질이자율의 하락과 함께 적자폭도 축소될 것으로 나타나고 있다. 그리고 실질환율(實質換率)의 시간경로는 자본유입과 함께 지속적으로 절상될 수는 없으며 개방초기의 절상에 이어 점차 절하되는 추세에 놓이게 될 것이다. 자본시장의 개방에 따른 경상수지의 적자는 국내의 (실물)자본축적을 보다 용이하게 함으로써 실질이자율(實質利子率)을 하락(下落)시킬 것으로 기대되나 그 효과는 연 0.2%포인트 이내에 머무를 것으로 추정되었다. 아울러 자본자유화의 초기단계에 발생할 환율절상은 수출의 가격경쟁력을 약화시켜 단기적(短期的)으로 경기침체(景氣沈滯)를 유발할 수 있으나 중장기적(中長期的)으로 성장잠재력(成長潛在力)을 확충시킨다.

• Korean Journal of Construction Engineering and Management
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• v.17 no.2
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• pp.118-126
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• 2016

International construction market have quantitatively increased and have reached up to 700 Bil. US$ through active effort of construction firms and government. In spite of this increase, substantiality issue has been constantly disputed due to qualitative problems such as lack of capability and technical shortage. To overcome these problems, many methods in performing quantitative growth and qualitative substantiality of overseas construction are being researched which showed that selection of subcontractors in general contractor is regarded as a very important success factor. However, it is difficult to make a reasonable decision for selecting the subcontractors due to the lack of evaluation standards and reliability. This study proposes an improved evaluation system through adjustment of the evaluation indicators using correlations analysis and multiple regression analysis with pre-qualification and performance evaluation of 121 firms in 6 countries.

• Korean Journal of Construction Engineering and Management
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• v.10 no.4
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• pp.129-138
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• 2009

The role and importance of VE have been enlarged since VE application was mandatory by law in public sector in March, 2000. Public organizations have widened the technological horizon through VE competitions and applied VE technique to private investment projects. Many studies have been carried out on function analysis and VE procedure. In practice it is common that clients make a decision one-sidedly on whether or not VE proposals are selected. The VE procedure itself is not smooth. This study gives some suggestions on VE appraisal procedure and criteria at the last phase on VE process in order to smooth the progress of VE. The results of this study can be used as a tool to improve efficiency in the management of VE.