• 시스템엔지니어링학술지
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• 제12권2호
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• pp.47-57
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• 2016

As the inventory costs of repairable items in military logistics continue to increase, many studies for optimal inventory level of these items are being carried out in advanced countries, including the US, to reduce these costs. Research on inventory level optimization for repairable items aimed to achieve the availability goal of a system with a MIME(Multi Indenture Multi Echelon) repair policy structure first began with Sherbrooke's METRIC and developed into various types. This research is to analyze and compare recent V-METRIC related studies to search for another variation in this field. This paper mainly looks at how to determine optimum inventory level for each repairable item to achieve a specific availability target within a limited budget, and also how to minimize inventory cost while achieving its availability target by determining optimal inventory level of each repairable item.

• Journal of Acupuncture Research
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• 제20권2호
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• pp.18-28
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• 2003

Objective : To research the trends of study related to osteoarthritis with acupuncture in PubMed, and to establish he hereafter direction of acupuncture for osteoarthritis. Methods : We searthed in PubMed, with osteoarthritis and acupuncture limited by abstract, human, English. Results : 1. The pattern of study was as follow: Review article(2), Clinical Trials(13), randomized controlled trials(13). bee venom acupuncture(1), electroacupuncture(1). We further estimated 15 articles. 2. The lesion of osteoarthritis & kinds of acupuncture were as follows: knee(12), hip(2), cervical vertebral(1), bee venom acupuncture(1), electroacupuncture(1). 3. Most clinical trials are related to decrease of pain, functional improvement. 4. 10 of clinical studies provide affirmative result. And they recommend acupuncture for osteoarthritis. 5. 4 of clinical studies provide negative result. And these studies are designed by sham acupuncture method.

• 아동학회지
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• 제32권5호
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• pp.13-28
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• 2011

This study explored the relationship between parental reaction to children's negative emotions, child's self-regulation and stress-coping behaviors. This study also examined the mediating effect of a child's self-regulation between parental reactions to children's negative emotions and a child's stress-coping behaviors. The sample included 407 elementary school 5th-6th grades and their parents (comprising 407 couples) in Seoul. The research results are summarized as follows. First, parental reactions to children's negative emotions were significantly related to the child's self-regulation and stress-coping behaviors. Secondly, it was also found that parental reactions to children's negative emotion were both partially and indirectly related to a child's stress-coping behaviors through the child's use of self-regulation.

• Journal of Acupuncture Research
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• 제24권1호
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• pp.209-216
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• 2007

Objectives : To review and summarize the existing evidence on acupuncture treatment for cancer and cancer related symptoms. Methods: Literature searches were made through domestic and international databases. Data were extracted according to pre-defined criteria. The methodological quality was assessed using the Modified Jadad scale. Results: Seven studies were included. Two of the studies were high in methodological quality. One study concerning acupuncture treatment for cancerous dyspnea reported insignificant differences between the treatment group and placebo group. The other study concerning auricular acupuncture for cancer related pain showed significant pain relief compared with the control group. All the other studies were non-blinded or uncontrolled trials. Conclusion : The hypothesis that acupuncture may be effective for the treatment of cancer is not supported by the data in recent clinical trials. More accurately designed randomized control trials (RCT) are needed.

• 아동학회지
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• 제29권4호
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• pp.199-212
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• 2008

Relationships between parents' home literacy attitudes in low-income families and children's emergent literacy were studied with 107 children 4- and 5-years of age and their parents. Instruments were Kim and Kwon's (2006) questionnaire about parents' literacy attitudes, the Peabody Picture Vocabulary Test-Revised(Kim et al., 1995) and the Concepts About Print(CAP; Kim & Kim, 2004). Results showed that parents of younger children were positive about reading books; parents of older children were positive about reading instruction. More positive parental feelings about reading and higher frequencies of reading with the child were related to children's higher vocabulary scores. Children's CAP was positively related with amount of parents' reading instruction, home literacy resources, and number of child's books in the home.

• International Journal of Fluid Machinery and Systems
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• 제6권1호
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• pp.33-48
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• 2013

If large pressure fluctuation is observed in the draft tube of a Francis turbine at part-load operation, we have generally called it draft-tube-surge. As occurrence of this phenomenon seriously affects the limit of turbine operating range, extensive studies on the surge have been made since proposal of surge-frequency criterion given by Rheingans. According to the literature survey of related topics in recent IAHR symposiums on hydraulic machinery and systems, in which state-of-the-art contributions were mainly presented, a certain review of them may be desirable for an outlook on the future studies in this research field. Thus, in this review paper, the authors' previous attempts for the last three decades to challenge the following topics: a rational method for component test of a draft tube, nature of spiral vortex rope and its behavior in a draft tube and cavitation characteristics of pressure fluctuations, are introduced together with other related contributions, expecting that more useful and significant studies will be accomplished in the future.

• Journal of Genetic Medicine
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• 제14권2호
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• pp.49-55
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• 2017

Pre-eclampsia is known to cause considerable maternal morbidity and mortality. Thus, many studies have examined the etiopathogenesis of pre-eclampsia. While many pathophysiological factors related to pre-eclampsia have been identified, the precise etiopathogenesis of pre-eclampsia remains unclear. Numerous studies have identified factors for the early prediction for pre-eclampsia to lead to preparation and closer observation on pre-eclampsia when it occurs. This article reviews on current studies of biomarkers and genetic factors related to pre-eclampsia, which may be important for developing strategies for early prediction of pre-eclampsia.

• Asia pacific journal of information systems
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• 제5권2호
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• pp.37-50
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• 1995

This study analyzed 89 MIS published in Korea since 1974. The keyword classification scheme proposed by Barki et al. [1993] was employed to classify researched themes of the papers. Research methods and research variables were also examined. The results showed that (1) the Korean MIS research focused on DSS/ES, IS evaluation, IS development and operations, (2) nonempirical studies took 46% of the 89 papers while survey method was frequently used in empirical studies, (3) in empical studies, user-related variables were most frequently included as dependent variable while organization-related variables were most frequently selected as independent variable. Some recommendations for the future MIS research in Korea were suggested.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1951-1966
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• 2007

This research attempts to examine the effects of import penetration in an industry on the firms' decision of business diversification and provide an integrative framework including the determinants and results of the business diversification. The research results are as follows. First, the import penetration doesn't affect the degree of business diversification. Second, the more profitable their core business industry, the lower the degree of business diversification against the import penetration. In addition, both technology-related assets and marketing-related assets are necessary for business diversification when faced with the import penetration. Finally, the inverted U-shaped relationship is supported between the degree of business diversification and firm performance.

• 한국건강관리협회지
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• 제3권1호
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• pp.13-23
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• 2005

In Korea, there is an urgent need to identify nutrition-related risk factors for obesity, because the prevalence of these conditions continues to rise among Koreans. While some studies suggest that westernized dietary pattern may increase the risk of obesity, others do not support these findings. Longitudinal studies examined the role of dietary patterns in relation to changes in body fat composition. Nowadays rapid changes in dietary patterns are related to socioeconomic status and westernized diet. Major dietary changes include a large increase in the consuming of at in the diet and a fall in total cereal intakes and fiber. This research showed remarkable decline in the consuming proportion of the grains and vegetables. These results fit closely with the trend toward increased prevalence of obesity in Korea. Most longitudinal studies on these relationships among children and adults showed that the dietary patterns affected obesity. In conclusion, we need programs to promote healthy Korean diet pattern in Korea.