• 대한지역사회영양학회지
• /
• 제29권3호
• /
• pp.199-211
• /
• 2024

Objectives: Online grocery shopping has gained traction with the digital transformation of retail. This study constructs a behavioral model combining values, attitudes, and reasons for behavior-specifically, facilitators and resistance-to provide a more novel discussion and further understand the relative influences of the various factors affecting continuance intention in online grocery shopping. Methods: Data were collected through an online questionnaire from consumers who had engaged in online grocery shopping during the past month in Seoul, Korea. All collected data were analyzed using descriptive analysis, and model validation was performed using partial least squares structural equation modeling. Results: Continuance intention is primarily driven by facilitative factors (compatibility, relative advantage, and ubiquity). Attitude can also positively influence continuance intention. Although resistance factors (price, tradition, and risk) do not significantly affect continuance intention, they negatively affect attitude. Values significantly influence consumers' reasoning processes but not their attitude. Conclusions: These findings explain the key influences on consumers' online grocery shopping behavior in Seoul and provide additional discussion and literature on consumer behavior and market management. To expand the online grocery market, consumers should be made aware of the potential benefits of the online channel; the barriers they encounter should be reduced. This will help sustain online grocery shopping behavior. Furthermore, its positive impact on attitude will further strengthen consumers' continuance intention.

• 한국농공학회논문집
• /
• 제49권3호
• /
• pp.63-68
• /
• 2007

The LRA(Logistic Regression Analysis) conducts a quantitative analysis by collecting a lot of samples and the AHP(Analytic Hierarchy Program) makes use of expert decision influenced by subjective judgment to a certain degree. This study is to suggest a combination method in mapping landslide hazard by giving equal weight for the result of LRA and AHP. Topographic factors(slope, aspect, elevation), soil dram, soil depth and land use were adopted to classify landslide hazard areas. The three methods(LRA, AHP, the combined approach) was applied to a $520km^2$ region located in the middle of South Korea which have occurred 39 landslides during 1999 and 2003. The suggested method showed 58.9% matching rate for the real landslide sites comparing with the classified areas of high-risk landslide While LRA and AHP Showed 46.1% and 48.7% matching rates respectively. Further studies are recommended to find the optimal combining weight of LRA and AHP with more landslide data.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권9호
• /
• pp.3893-3900
• /
• 2015

It's known that having multiple sexual partners is one of the risk factors of human papillomavirus (HPV) infection which is a major cause of cervical cancer. However, it is not clear whether the number of sexual partners is an independent risk factor for cervical cancer. We identified relevant studies by searching the databases of MEDLINE, PubMed and ScienceDirect published in English from January 1980 to January 2014. We analyzed those studies by combining the study-specific odds ratios (ORs) using random-effects models. Forty-one studies were included in this meta-analysis. We observed that the number of sexual partners was associated with the occurrence of non-malignant cervical disease (OR=1.82, 95%CI 1.63-2.00) and invasive cervical carcinoma (OR=1.77, 95%CI 1.50-2.05). Subgroup analyses revealed that the association remained significant after controlling for HPV infection (OR=1.52, 95%CI 1.21-1.83 for non-malignant disease; OR=1.53, 95%CI 1.30-1.76 for invasive cervical carcinoma). We found that there was a non-linear relation of the number of sexual partners with both non-malignant cervical disease and invasive cervical carcinoma. The risk of both malignant and non-malignant disease is relatively stable in women with more than 4-7 sexual partners. Furthermore, the frequency-risk of disease remained significant after controlling for HPV infection.The study suggested that h aving multiple sexual partners, with or without HPV infection, is a potential risk factor of cervical cancer.

• Asian Pacific Journal of Cancer Prevention
• /
• 제13권1호
• /
• pp.157-163
• /
• 2012

Objective: Glutathione S-transferases (GSTs) are multifunctional enzymes that play a crucial role in the detoxification of both the endogenous products of oxidative stress and exogenous carcinogens. Recent studies investigating the association between genetic polymorphisms in GSTs and the risk of adult brain tumors have reported conflicting results. The rationale of this pooled analysis was to determine whether the presence of a GST variant increases adult glioma susceptibility by combining data from multiple studies. Methods: In our meta-analysis, 12 studies were identified by a search of the MEDLINE, HIGHWIRE, SCIENCEDIRECT and EMBASE databases. Of those 12, 11 evaluated GSTM1, nine evaluated GSTT1 and seven evaluated GSTP1 Ile105Val. Between-study heterogeneity was assessed using ${\chi}^2$-based Q statistic and the $I^2$ statistic. Crude odds ratios (ORs) with corresponding 95% confidence intervals (CIs) were used to estimate the association between GSTM1, GSTT1 and GSTP1 polymorphisms and the risk of adult gliomas. Results: The quantitative synthesis showed no significant evidence to indicate an association exists between the presence of a GSTM1, GSTT1 or GSTP1 Ile105Val haplotype polymorphism and the risk of adult gliomas (OR, 1.008, 1.246, 1.061 respectively; 95% CI, 0.901-1.129, 0.963-1.611, 0.653-1.724 respectively). Conclusions: Overall, this study did not suggest any strong relationship between GST variants or related enzyme polymorphisms and an increased risk of adult gliomas. Some caveats include absence of specific raw information on ethnic groups or smoking history on glioma cases in published articles; therefore, well-designed studies with a clear stratified analysis on potential confounding factors are needed to confirm these results.

• 대한토목학회논문집
• /
• 제26권5D호
• /
• pp.861-867
• /
• 2006

본 연구에서는 안성시($520km^2$)를 대상으로 Logistic 회귀분석 방법과 AHP 기법을 이용하여, GIS와 RS 자료를 활용한 산사태 위험지를 분석하였다. Logistic 회귀분석과 AHP 기법에는 6개의 인자(경사, 경사향, 고도, 토양배수, 토심, 토지이용)를 사용하여, 7등급으로 산사태 위험도를 분류하였다. Logistic 회귀분석 방법과 AHP 기법을 이용한 산사태 위험지도를 표본 자료와 비교하면 산사태가 발생한 표본에서 산사태 위험성이 높은(1-2등급)지역이 Logistic 회귀분석에서는 46.1% AHP 기법은 48.7%로 분류되어 AHP 기법이 분류도가 높다고 분석되었다. Logistic 회귀분석과 AHP 기법은 서로 분석 과정의 차이를 가지고 있기 때문에 Logistic 회귀분석과 AHP기법을 적용한 결과에 동일 가중치를 부여한 후 7개 등급으로 재분류(reclass)하여 산사태 위험지역을 추출할 수 있는 방법론을 본 연구에서 제시하였다. 그 결과 산사태가 발생한 표본에서 1-2 등급지역이 58.9%로 분석되어 분류정확도를 높일 수 있었다.

• Asia Marketing Journal
• /
• 제7권3호
• /
• pp.105-119
• /
• 2005

삼성화재는 국내에서 처음으로 저축성 보험 및 연금보험을 제외한 가계성 손해보험 상품을 하나로 통합한 '삼성Super보험'을 출시하였다. 이 보험은 변화하는 외부환경의 위협에 능동적으로 대처하기 위해 개발되었으며 이 상품이 성공적으로 출시된 것은 손해 보험업에 적합한 컨설팅시스템(MCS System)을 도입하고, 전문판매조직인 SRC(Samsung Risk Consultant)의 도입 등 종합적 마케팅 전략의 결과이다. 본 사례에서는 삼성화재가 국내에서 처음으로 통합보험을 출시하기까지의 과정과 마케팅전략을 소개하고, 주요 성공요인이 무엇인지 알아본 후, 시사점과 함께 향후 과제를 함께 제시하였다.

• 대한소아치과학회지
• /
• 제23권4호
• /
• pp.887-892
• /
• 1996

For the purpose of assessing the utility and cautionary aspects of pulse oximetry of which use is rapidly increased, it was applied to the maladaptive child patients with sedative drugs and evaluated the results. When pulse oximeter was used alone for vital sign monitoring, it was thought impossible to exclude the false alarm or false silence by various causes. To minimize or remove these misunderstanding, operators should have a extensive knowledge not only on the factors affecting the operation of this apparatus but also on the potential of misoperation. To review the present status of increasing risk of hypoxia during the sedation, it was thought unreasonable to solely depend upon this apparatus for vital sign monitoring. By combining with more accurate and auxiliary monitoring devices, pulse oximetry will be of greater value and can meet the clinical needs and conveniences.

• 지식경영연구
• /
• 제11권1호
• /
• pp.37-50
• /
• 2010

Bioharmaceutical technologies have consistently been areas in which large licensing agreements have been negotiated. However, there are very limited informations in the open literature on how its running royalty rates are determined and no specific methods are yet provided. The purpose of this study is to suggest an appropriate method for the estimation of running royalty of bioharmaceutical technology in licensing agreements. Here distribution of risk-adjusted operating margins are obtained by simulation using statistics of success rates in the stage of clinical trials and profit margins. Three factors based on technology, business and license legal terms are considered and combined as licensing competitiveness level. Finally, reasonable running royalty is estimated by combining simulated distribution and licensing competitiveness level. This suggested method is expected to practically useful for licensor to establish an appropriate running royalty rate for licensing.

• 대한토목학회논문집
• /
• 제33권3호
• /
• pp.957-964
• /
• 2013

본 논문은 침수특성치를 이용한 도시유역의 침수위험성 평가방법을 제시하는 연구이다. 2010년 9월 21일 청계천상류의 효자배수분구(광화문 광장일대)에서 발생한 침수피해를 XP-SWMM 2010을 이용하여 모의하였다. 강우발생빈도별, 지속시간별로 관로첨두유출량 값을 구하여 침수상태를 분석한 결과 관로 내 첨두유출량만으로는 침수상태를 충분히 해석할 수 없음을 확인 할 수 있었다. 따라서 도시지역의 침수피해규모를 표현할 수 있는 침수특성치 6가지를 새롭게 정의하였으며 발생가능한 강우조합(강우량, 강우지속시간)을 침수특성치별로 산정하여 침수위험성 평가방법을 연구하였다. 모의 결과를 침수특성치별로 강우조합에 중첩하여 등치선도로 나타낸 "발생가능강우별 침수특성 등치선도"를 개발하여 이를 근거로 발생할 수 있는 모든 강우형태에 대한 침수위험성을 평가할 수 있음을 확인할 수 있었다. 또한 유역의 상태가 변하거나 치수계획규모를 변화시키는 것에 대한 침수특성치별 침수규모 해소정도를 쉽게 파악 할 수 있음을 확인하였다.

• 한국산학기술학회논문지
• /
• 제22권2호
• /
• pp.76-84
• /
• 2021

품질보증활동은 양산단계에서 위험 식별을 기반으로 품질에 영향을 주는 인자를 확인할 수 있다. 위험 식별은 고장 분석을 통해 이루어지며, 회전익 항공기 착륙장치에 대한 고장 분석 방법은 고장 유형 영향 분석(FMEA)으로 선정하였다. FMEA는 고장 유형에 대해서 심각도, 발생도, 검출도에 대한 정보를 결합하여 품질에 영향을 미치는 인자를 확인하는 방법이다. FMEA 결과는 위험도를 통해 고장 우선순위를 결정한다. 하지만 심각도, 발생도, 검출도에 대한 중요도는 동일하게 구성된다. Dempster-Shafer 증거 이론은 경험과 주관이 반영된 의견에 대해서 불확실성 분석을 수행한다. 또한, Dempster-Shafer 증거 이론은 믿음 함수와 개연성 함수를 구성할 수 있으며, 믿음 함수와 개연성 함수를 통해 가설의 믿음 정도, 신뢰도를 확인할 수 있다. 회전익 항공기 착륙장치는 이륙 및 착륙 시 충격을 받는 구성품으로, 양산단계에서 고장 유형을 관리하는 것이 중요하다. 본 논문에서는 회전익 항공기 착륙장치의 고장 유형에 대한 위험도 분석을 위해 Dempster-Shafer 증거 이론을 이용한 FMEA를 제안하고, 고장 우선순위를 결정한다. 결과는 믿음 함수 및 개연성 함수 곡선을 통해 도출한다.