• IE interfaces
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• v.22 no.3
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• pp.234-242
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• 2009

It is most important for distribution center in retail business to delivery commodities in a timely manner. Accordingly, many companies try to make distribution center effective using the Warehouse Management System(WMS) integrated legacy system. Also, the Customer Relationship Management(CRM) is the most typical paradigm in management lately. Even though the WMS and CRM are independent system of each other, WMS, coupled with CRM makes customer satisfied more effectively. In this paper, we proposed the methodology for inventory location after analyzing and applying customer buying pattern data in the CRM through the MBA(Market Basket Analysis), which is part of data mining. We used an example modeling a real distribution center in retail through a 3D simulation tool and examined correlation between commodities using customer buying pattern. After that, we applied it to the inventory location system through the MBA in an example. Finally, we identified decrease in the time for picking, which is the majority of distribution center. Besides, we proposed a simulation methodology before applying new methodology. Consequently, it removes potential errors in advance and makes a optimized inventory location system.

• Journal of Information Technology and Architecture
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• v.9 no.2
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• pp.199-207
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• 2012

This study analyzed how the subcontracting business relations and structures of cooperation affect the relationship skills (Outcome) that is divided into three steps. We analyzed integrated data every other year from 2005 to 2009. As a results, in the execution of technical cooperation trade relations have influenced the positive attributes, but recently their influence has been weakened. As for technical cooperation, the structure should alleviate the problem of the uneven performance of technical cooperation. We suggested that technical expertise and infrastructure make possible the culmination of the long-term technological competitiveness level.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.8C
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• pp.814-821
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• 2009

In an ultrawide band (UWB) indoor wireless localization, time of arrival (TOA) parameter estimation techniques have some difficulties in acquiring a reasonable TOA estimate because of the clustered multipath components overlapping or random time intervals mainly due to non line-of-sight (NLOS) environment. In order to solve that problem and achieve an excellent UWB indoor wireless localization, we propose a UWB signal model and a robust TOA parameter estimation technique that has little effect on the clustered problems unlike the conventional technique. Through simulation studies, the validity of the proposed model and the TOA estimation technique are examined. The performance of estimation error is also analyzed.

• Proceedings of the Korean Society for Quality Management Conference
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• 2009.10a
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• pp.123-130
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• 2009

미용업의 사회적 인식이 높아짐에 따라 국내 미용서비스산업은 경영적 측면에서 체계화되고 규모면에서도 날로 확대되는 등 양적, 질적인 성장하고 있으며, 국내 업계끼리는 물론이고 글로벌화로 인하여 외국의 선진 프랜차이즈와도 경쟁하는 단계에 이르렀다. 이러한 환경적 변화 속에서 국내의 미용업계는 한 차원 높은 성장을 위한 자구적 노력이 필요한 상황이다. 그러나 국내 미용업계는 서비스 제공자 관점에서 일방적인 서비스를 제공하여 왔고 고객관점에서 가치 있는 서비스의 내용과 품질을 제대로 파악하지 못하고 있는 실정이다. 미용서비스품질을 정의하기 위한 연구들은 계속되고 있으나 미용서비스품질에 대한 명확한 개념정의는 물론이고 앞으로 국내 미용업계 성장의 축이 될 브랜드 미용실의 고유 서비스품질은 여전히 확정적이지 못한 실정이다. 따라서 본 연구에서 브랜드 미용실 고유의 서비스품질 요인들을 발견하고, 지각된 가치, 고객만족, 재이용의도 간의 인과관계를 알아보고자하며, 특히 지각된 가치의 매개적 역할과 계량적 중요성을 알아보고자 하였다. 또한 브랜드 미용서비스를 이용하는 고객들의 단골고객 신념수준에 조절효과가 있는지 알아보기 위하여 가치-고객만족, 가치-재이용의도, 고객만족-재이용의도 간의 이에 대한 조절효과를 검정하였고, 효과적인 서비스품질전략을 제시하고자 하였다.

• Journal of the Korean Society for Precision Engineering
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• v.26 no.12
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• pp.110-116
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• 2009

Thick-walled cylinders, such as a cannon or nuclear reactor, are autofrettaged to induce advantageous residual stresses into pressure vessels and to increase operating pressure and the fatigue lifetimes. As the autofrettage level increases, the magnitude of compressive residual stress at the bore also increases. However, the Bauschinger effect reduces the compressive residual stresses as a result of prior tensile plastic strain, and decreases the beneficial autofrettage effect. The purpose of the present paper is to predict the accurate residual stress of SNCM8 high strength steel using the Kendall model which was adopted by ASME Code. The uniaxial Bauschinger effect test was performed to decide BEF, then this constant was used in calculation. There were some differences between theoretical solution and modified solution.

• 한국IT서비스학회:학술대회논문집
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• 2009.05a
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• pp.115-120
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• 2009

u-City는 첨단 정보통신 인프라와 유비쿼터스 정보서비스를 도시공간에 융합해, 도시 생활의 편의증대와 삶의 질 향상, 체계적인 도시 관리에 의한 안전보장, 신산업 창출 등 도시 기능을 전반적으로 혁신할 수 있는 첨단 정보통신 도시를 의미한다. 최근 자치단체별로 활발하게 추진되고 있는 u-City사업의 성공적인 구현을 위해, 도시 관리의 효율적 운영, 편리하고 신속한 서비스 제공, 발생 가능한 정보의 통합, 각종 기관과의 연계 등을 일원화된 통합조직을 통해 수행할 수 있는 도시통합운영모델과 u-City 정보인프라의 핵심적인 역할(정보의 통합적인 수집 관리 제공)을 수행하는 도시통합운영센터 구현에 대한 관심과 중요성이 높아지고 있다. 하지만 현재 이에 대한 구축방법, 운영방안 등에 대한 명확한 기준이 없어 실제로 도시통합운영센터를 구현하는데 어려움을 겪고 있다. 도시통합운영센터의 성공적인 구현을 통해 도시의 효율적인 통합운영을 달성하기 위해서는 도시통합운영센터 구축 운영 방안 수립과 함께 도시통합운영모델의 개발이 수반되어야 하며, 이에 앞서 무엇보다 도시운영에 대한 깊이 있는 이해를 바탕으로 도시통합운영센터의 표준 업무 프로세스 정립이 필요하다. 본 연구는 도시통합운영센터의 표준 업무 프로세스를 구축하기 위한 선행연구로서, 도시통합운영센터 구현에 관련된 주요 이해관계자에 대한 분석을 수행하기 위해 도시통합운영센터 u-City 서비스를 선정하고, 운영방식 (센터 통합운영, 지자체 연계를 통한 센터통합운영, 개별운영)에 따라 분류하였다.

• Journal of the Korean Society of Safety
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• v.24 no.6
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• pp.132-135
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• 2009

The population over 65 years of age in Korea will be 10.3% of the entire population in 2008 indicating that Korea is already in an aging society. In addition, it is expected that Korea will be in an aged society in 2018 (population over 65 years of age : 14.3%) and that it will be in a post-aged society in 2026 (20.8%). Consequently, aged workers may also increase. It is well-known that the possibility to work longer and to live better is highly related to the work ability of individual. The objective of this study was to evaluate the work ability of each age group using the Work Ability Index(WAI) in the shipbuilding industry, and to assess the effects of social psychological stress, drinking characteristics, smoking characteristics, etc. on the WAI score. The results showed no significant difference on the effects of aging, drinking, and smoking characteristics. Interestingly, a statistical analysis on the effects of social psychological stress revealed a significant difference by stress levels. The difference of the average WAI score between the healthy group and the high risk group was about 10 points. Based on this result, it can be concluded that the stress level is an influential factor on WAI.

• The Journal of Fisheries Business Administration
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• v.40 no.2
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• pp.127-148
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• 2009

The objective of this paper is to evaluate of fisheries competitiveness in Korea, China and Japan. A joint research with researchers from Korea, China and Japan from 2007 to 2008 was conducted to analyze competitiveness of each respective fishery industry. An industry's competitiveness means the aggregated and potential abilities of the infrastructure, producers and other operators in the industry. The study improved the Norway-Iceland Model developed by the FCI Team(2005) and applied it to the fisheries of the 3 countries. To compare competitiveness of each fishery from the 3 countries, the study examined 87 items including 64 questions and 23 statistics items. Korea fisheries' competitive advantage over China is in marketing capability. Capabilities of fishing companies and fishing processors are also slightly over Japan's performance. However, Korea holds an absolute disadvantage over China and Japan when it comes to the macroeconomic environments and government support, industrial environments and infrastructure, and production and management. Korea's fishing companies and fishing processors especially are much weaker than those of China. In conclusion, Korea needs strategies to advance the industry's structure, China needs to expand the industry's base and Japan needs to differentiate the industry.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.4
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• pp.115-122
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• 2009

These day, market demanded to a Video conference systems rapidly increases in our life for cut cost in communication. more and more it will be grow up. but the cost building to a Voice conference and a Video conference is very hight. therefore it is builded around the big company and the public office. so in this study, we have developed to hybrid IP-PBX which is able to a Voice conference and a Video conference with one system. the system developed has the merits to low-price for it's building in a small company. we make proof the performance through the test. with using the hybrid IP-PBX, we can sharply reduce to communication cost.

• Journal of agricultural medicine and community health
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• v.31 no.2
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• pp.119-144
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• 2006

The Korea rural health study, a large prospective cohort study, the objectives of this study are exploration for potential causes of agricultural injuries and diseases among farmers. Current medical research suggests that they may have higher rates of some traumatic injuries, pesticide poisoning, infectious diseases, musculoskeletal diseases, asthma and other respiratory diseases. This study is designed to identify occupational, lifestyle, and environmental factors of workplace that may affect the rate of diseases in farming population. Round 1, initial cohort recruitment, will begin in 2006 and conclude in 2009. Round 2, follow-up will begin in 2010 and conclude in 2014. Approximately 54,000 persons will be selected to study population. Nested case-control studies and case-crossover studies will be conducted for getting to the bottom of agriculture-related diseases. Recruitment and follow-up are conducted in collaboration with multi-centers. As data on the exposures and health outcomes of this study population are collected and analyzed in 2014. This study will be evaluated by public health experts for effort, achievement, adequacy of performance, efficacy, process of study and so on. The author expects that this cohort study may reduce agricultural injuries and diseases and will provide information that agricultural workers can use in making decisions about their health. Also, this study will be significant basis for strengthening the competitiveness of agriculture in Korea.