• 대한안전경영과학회지
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• 제10권1호
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• pp.215-224
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• 2008

Recently, product life-cycles are shortening faster than ever before, and companies with a suggestion system are in better position to overcome this shortening life-cycle and thus promote customer satisfaction. Suggestion systems, however, are not actively utilized on the production floors in many firms. This study showed that small-sized and medium-sized firms where a suggestion system is properly functioning by a strong will of top management are not many in Gangwon-do area. In considerable number of companies, a suggestion system is informally and spontaneously applied by the workers on the production floors not by company-wide systems. A suggestion system is required as a means of creating future value-added and it is a matter of course that the role of top management, together with middle-class managements' influence is quite important in the course of the successful application of it. A suggestion system, to be successful, calls not only individual efforts but also positive corporate cultures.

• 전기학회논문지
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• 제57권12호
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• pp.2213-2219
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• 2008

Customer complaints on noise from the power transformer have been increased because of their concerns on environment. In order to solve fundamental noise problem of the transformer, KEPCO and domestic transformer manufacturers are developing 55 dBA class low noise transformers. To check accordance of the noise abatement law, we study relation between transformer noise level and substation border noise level. We present 'noise level of the substation border' under operating conditions and transformer noise level change. We also present an appropriate noise level of the transformer that satisfy the noise abatement law for outdoor substations.

• 한국자동차공학회논문집
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• 제14권5호
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• pp.181-185
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• 2006

A study to get better vehicle fuel economy is described based on an express bus. The approach is based on using a commercial software vehicle simulation to identify the relative efficiency of each of the vehicle systems, such as the engine hardware, engine software calibration, transmission, cooling system and ancillary drives. The simulation-based approach offers a detailed understanding of which vehicle systems are underperforming and by how much the vehicle fuel economy can be improved if those systems are brought up to best-in-class performance. In this way, the optimum vehicle fuel economy can be provided to the vehicle customer. A further benefit is that the simulation requires only a minimum of vehicle testing for initial validation, with all subsequent field test cycles performed in software, thereby reducing development time and cost for the manufacturer.

• 지능정보연구
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• 제28권4호
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• pp.347-364
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• 2022

고객의 구매 의사결정에 영향을 주는 온라인 리뷰의 부적절한 조작을 통해 이익을 얻고자 하는 기업 또는 온라인 판매자들 때문에, 리뷰의 신뢰성은 온라인 거래에서 매우 중요한 이슈가 되었다. 온라인 쇼핑몰 등에서 온라인 리뷰에 대한 소비자들의 의존도가 높아짐에 따라 많은 연구들이 조작된 리뷰를 탐지하는 방법에 개발하고자 하였다. 기존의 연구들은 온라인 리뷰를 기반으로 정상 리뷰와 조작된 리뷰를 대상으로 기계학습으로 이용함으로써 조작된 리뷰를 탐지하는 모형을 제시하였다. 기계학습은 데이터를 이용하여 이진분류 문제에서 탁월한 성능을 보여왔으나, 학습에 충분한 데이터를 확보할 수 있는 환경에서만 이러한 성능을 기대할 수 있었다. 조작된 리뷰는 학습용으로 사용할 수 있는 데이터가 충분하지 못하며, 이는 기계학습이 충분한 학습을 할 수 없다는 치명적 약점으로 내포하게 된다. 본 연구에서는 기계학습이 불균형 데이터 셋으로 인한 학습의 저하를 방지할 수 있는 방안으로 부족한 조작된 리뷰를 인공지능을 이용하여 생성하고 이를 기반으로 균형된 데이터 셋에서 기계학습을 학습하여 조작된 리뷰를 탐지하는 방안을 제시하였다. 파인 튜닝된 GPT-3는 초거대 인공지능으로 온라인 플랫폼의 리뷰를 생성하여 데이터 불균형 문제를 해결하는 오버샘플링 접근방법으로 사용되었다. GPT-3로 생성한 온라인 리뷰는 기존 리뷰를 기반으로 인공지능이 작성한 리뷰로써, 본 연구에서 사용된 로짓, 의사결정나무, 인공신경망의 성능을 개선시키는 것을 SMOTE와 단순 오버샘플링과 비교하여 실증분석을 통해서 확인하였다.

• 디지털융복합연구
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• 제14권2호
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• pp.169-173
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• 2016

온라인 환경을 통한 전자상거래 활동은 IT 기술발전과 더불어 급속하게 다양한 형태로 성장해가고 있다. 더욱이 온라인 시장의 확대는 온라인 쇼핑 운영업체들 사이에 경쟁을 더욱 가속화시키는 결과를 초래하고 있다. 또한, 온라인 환경에서 판매 전략을 위한 다양한 디지털 콘텐츠 제작 및 환경구성에 대한 연구가 이루어지고 있다. 이에, 반지와 관련되어 온라인 판매 활성화를 위한 마케팅 전략 개발이 필요하며, 이를 위해 본 논문에서 검색 상위에 랭크되어있는 업체들의 온라인 콘텐츠 구성요소 분석을 통해 반지 산업에 적합한 구성요소를 도출하였다. 특히, 젊은 고객 수요층을 목표로 온라인 구성 요소 개발과 이를 기반으로 구축 결과에 관하여 살펴보았으며, 향후 젊은 고객수요층을 대상으로 경쟁력 있는 반지 마케팅을 기대해 볼 수 있을 것이다.

• 한국컴퓨터정보학회논문지
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• 제16권11호
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• pp.77-83
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• 2011

온라인 쇼핑 시장이 IT 기술발전과 더불어 급속히 성장하게 되면서, 다양한 형태와 함께 온라인 쇼핑들 간의 치열한 경쟁이 심화되고 있다. 이에 따라 온 오프라인에서 차별화된 특징이 경쟁력을 도모할 수 있게 되었으며, 젊은 계층인 연인들을 마케팅 대상으로 하는 커플 이벤트 기획이 필요하게 되었다. 본 연구에서는 커플 및 젊은 구매계층들을 마케팅 대상으로 하며, 매출 향상을 목적으로 기획 및 구현된 사이트 개발을 목표로 하고 있다. 이를 위해서 기존 상업 사이트에 대한 이벤트 기획들에 대한 분석을 기반으로, 커플 생일을 마케팅 전략 및 다양한 기념 이벤트 및 고객들이 사이트를 방문하였을 때 이벤트가 한층 돋보이도록 마케팅 기획과 정보 배치를 중심으로 사이트를 구축하였다. 이를 통해 일부 고객층 대상으로 이벤트 효과 증대를 통한 매출 증대를 도모할 수 있을 것으로 기대된다.

• 한국의류학회지
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• 제37권1호
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• pp.90-100
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• 2013

This study uses a survey questionnaire to identify the major customer age class of adult women who frequently mountain climb as well as analyze their purchasing behavior and preference of mountain climbing pants. The field survey, classified the types of mountain climbing pants, selected the types of mountain climbing pants that consumers preferred, and then analyzed the degrees of satisfaction for mountain climbing pants based on an evaluation of wearing. Specifically, the patterns of mountain climbing pants preferred by national brands and licensed brands were compared and analyzed. The validities of commercially available mountain climbing pants were analyzed through an evaluation of wearing comfort and an evaluation of wearing on a 3D simulation of the human body. The basic data for the development of mountain climbing pants are presented based on the results. The survey questionnaire results indicate that the major class of women consumers of mountain climbing goods was in the 40s to 50s; in addition, the types they most wore were straight type and functional cut type. The preferred brand was KOLONSPORT (which occupies a 21.2% market share), followed by THE NORTH FACE (13.0%), K2 (11.5%) and Kolping (10.0%). The main reason (26.8% of responses) that they preferred these brands was functionality. The difference in measurement of climbing pants patterns could be analyzed accurately in the pattern analysis, the wearing evaluation by the self-sonsory test and evaluation of wearing comfort through 3D simulation. The results of ANOVA on motions and items indicates that no significant difference was found among motions; however, a significant difference was recognized among items. A comparison of straight type and functional cut type showed that the functional cut type excelled slightly in wearing comfort.

• 약학회지
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• 제49권6호
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• pp.449-458
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• 2005

There have been rapid changes in the pharmaceutical environment after the separation of Dispensing and Prescribing practice. In the early stage of this system, outpatients had few options to choose their pharmacies due to various obstacles. Under these circumstances, this study on the defection tendency of long-term care patients was performed through the analysis of outpatients who quit visiting a pharmacy nearby general hospital. PowerBuilder ver 9.0 program was used to extract significant data, and SPSS package was employed for statistic analysis. 3,308 outpatients who visited a pharmacy nearby hospital for a month (in January, 2004) were studied. Patients' sex, age and location of residence, the class of medical insurance, the characteristic type of medication (powder, split form, medication for external use/injection), waiting time, disease (department) were considered as variable factors. It turned out that the patient revisit ratio was 80.8$\%$ and the patient defection ratio was 32.4$\%$. As was expected, those factors mentioned above influenced on the revisit and defection ratio considerably. In terms of patient factors, it proved that there was no relationship among sex, location of residence, the class of medical insurance and revisit (defection) ratio. Only age factor influenced the ratio; the older, the higher revisit ratio and the less defection ratio. In respect of dispensing factors, there were obvious relationships among the factors and the ratio: bill (money they had to pay individually), waiting time, number of medications, splitting of tablets, unit price of drug and revisit (defection) ratio showed significant relationship. The result of this study revealed an aspect of outpatients' behavior and it could be used as a reference for better patient service and customer relationship management.

• 조명전기설비학회논문지
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• 제22권10호
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• pp.56-61
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• 2008

배전계통의 고조파 방해(Harmonics Disturbance)현상은 배전계통에서 전압강하와 함께 순시 전력품질을 저해하여 중성선 및 NGR(Neutral Ground Reactor) 과열, OCGR 오동작 등의 문제를 발생시킴으로써 전력회사와 고객 모두에게 막대한 경제적인 손실을 주고 있어 동 분야에 대한 적극적인 대책이 필요하다. 이에 대한 해결 방안으로 유럽에서는 IEC 61000-3-2 규격을 통해 상당 16[A] 이하 저압 전기기기의 고조파를 제한하고 있다. 본 규격은 저압 전기기기를 4개의 등급으로 구분하여 관리하고 있으며, 분석결과 클래스 A등급 해당 전기기기의 고조파 유출제한 기준은 저압계통의 기준임피던스와 허용 최대전압을 바탕으로 산정되었으며, 타 등급(B, C, D등급)의 유출제한 기준들도 클래스 A의 유출제한 기준을 바탕으로 산정되었다. 따라서 본 논문에서는 IEC 61000-3-2 규격 분석결과를 바탕으로 국내 기준임피던스에 기초하여 국내 저압 전기기기의 고조파 유출 제한 값을 산정하였다.

• 기술혁신연구
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• 제12권3호
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• pp.1-24
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• 2004

E-Learning is another way of teaching and learning. E-learning is a networked phenomenon allowing for instant revisions and distribution, and goes beyond training and instruction to the delivery of information and tools to improve performance. The benefits of e-learning are many, including cost-effectiveness, enhanced responsiveness to change, consistency, timely content, flexible accessibility, and providing customer value. The proponents of e-learning stress the importance of using communities of interest to support and enhance the learning process. They also emphasizes that people learn more effectively when they interact and are involved with other people participating in similar endeavors. Although the role of e-learning in higher education has significantly increased, the resistance to new technology by professors and lecturers in university and colleges worldwide remains high. The purpose of this study is to identify the determinants of attitude and planned behavior toward e-learning class in universities. A survey methodology was used to investigate a proposed model of influence, and structural equation modeling was used to analyze the results. The hypothesized model was largely supported by this analysis, and the overall results indicate that attitude toward e-learning systems is mostly influenced by the perceived ease of use as well as the level of perceived usefulness, where both factors are influenced by years of experiences in using cyber system and the technical support level. As in other TAM related research, it can be concluded that the perceived ease of use and perceived usefulness contribute to the future use of e-learning system.