• Journal of Dental Rehabilitation and Applied Science
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• v.26 no.2
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• pp.157-168
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• 2010

Many athletes have been using occlusal stabilization appliances to improve their performance. Few studies have examined the benefits of such an appliance in golf. We determined the effect of such appliances on the masticatory muscle activities and driving distances of professional golf players. The appliances were customized for each player and adjusted using a computerized device. The electromyographic muscle activities and driving distances with and without the appliance were measured and compared using the K7 Analyzer and the GolfAchiever II assembly. A paired t-test was used for statistical analysis. The muscle activities of the temporo-frontal and masseter muscles with the appliance were significantly more stable than those without the appliance, and the driving distances with the appliance were significantly different from those without it. Although there were intra-individual differences, professional golf players with temporomandibular disorders showed a greater improvement in performance.

• Journal of Korea Port Economic Association
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• v.32 no.4
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• pp.165-182
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• 2016

This study examines the competitiveness and cooperativeness among the container ports in East Asia by analyzing their monthly dynamics in eight years (2008-2015). Time series data on container throughput divided into origin and destination (O/D), such as the top six Chinese ports and the transshipment (T/S) ports such as Hong Kong, Busan, and Singapore, are computed with two methods based on the Vector Error Correction Model (VECM). The first Granger causality test results show that Busan T/S has significant bilateral relations with three Chinese O/D ports; and significant unidirectional relations with three other O/D ports. Shenzhen port has significant bilateral relations with Singapore, and has a significant unidirectional relation with Hong Kong port. Co-integrating test results showed that Busan holds negative co-integration with all Chinese O/D ports. Impulse response function (IRF) results show an opposite direction between paired ports. The ratios of the impulse from T/S ports are significantly high to one another in the short-run, but its power declines as time passes. The ratio of the impulse from the Chinese ports to T/S ports is less significant in the short-run period, however, it becomes more significant as time passes. The significance of most shocks was high in the second period, but was diluted after the sixth period.

• Korean Journal of Applied Biomechanics
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• v.19 no.2
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• pp.297-309
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• 2009

The study analyzed the mechanism of plantar foot pressure distribution during pitching wedge swinging on a flat, an up hill lie and a down hill lie to provide the fundamental information regarding biomechanical motion data by using plantar foot pressure measuring instrument. In the results, time factor spanning according to slope differences, plantar foot pressure factor and swing motion on the slope could have negative effect on the coiling of lower limbs during back swing, as well as the blocking of the lower limbs to minimize the dispersion of the weight and the release of the lower limbs after the impact during the down swing process. Moreover, since slope is one of many external factors affecting swing motion, address motion on an up hill lie limits the lower limbs movement, therefore, a relatively narrow stance is better on a down hill lie. It is estimated that a relatively wide stance would be better in order to limit the bigger activation of the lower limbs. Not only for the address motion but also during the down swing on an up hill lie it is concluded that the weight should be on the left foot in order to keep the body balance.

• Journal of the Korean Society for information Management
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• v.3 no.2
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• pp.42-74
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• 1986

The objective of the study is to search for a theoretical and practical solution for the question "what is the most effective and Qualitative method of information service for the college and university libraries in Korea." Assuming the maximum service, or total service theory in information services, it needs the subject specialist who has highly qualified in his subject. This research adapted the survey method by questionnaire to the reference/information librarian who worked in college and university libraries, 159 librarians returned the questionnaires. By the analysis of this questionnaires, the following major results were found: 1. There were only 7.6% who could be called as subject specialist in Korean college and university libraries. 2. The subject specialist system is necessary to enhance the Information services in college and university libraries. 3. The major functions of subject specialists are information services In given subject fields; to prepare the bibliographies, guides, reading lists, indexes and abstracts; distribution of information and current awareness services; well balanced collection developments; liaison function between academic departments, students and faculty members; formal and informal lecture on the use of the library and the resources; and the cataloging and classification. 4. The best library and information education system is the graduate level study which is offering the M.L.S. or M.S. of library and information science with the emphasis on the study of subject background. 5. They will establish the faculty status for academic librarian by the development of subject specialist system in college and university libraries in Korea.

• Journal of the Korean Society of Food Science and Nutrition
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• v.34 no.3
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• pp.356-360
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• 2005

The maintenance of intestinal health is complex and relies on a delicate balance between the diet, the normal microflora and mucosa, including the digestive epithelium and overlying mucus layer. The colorectal mucosa is protected by a visco-elastic mucus gel formed by high molecular mass glycoproteins referred to as mucins. Abnormality of mucin have been identified with colorectal disease. Constipation increases with age, and is more common among women than men in all age groups, e.g. 10% of men and 20% of women in the USA. The aim of the present study was conducted to investigate that the effects of formulation KTG075 from edible plants on intestinal function on mucus secretion, were examined by loperamide-induced constipation method using Sprague Dawley male rats. Epithelial cells of colonic crypt contained more mucus in the KTG075 group compared with those of the control group and the thickness of the mucus layer stained with alcian blue was significantly thicker in KTG075 treated rats compared with in control rats. Mucus production of epithelial cells of crypt and mucus contents at fecal and mucosa surfaces were reduced by loperamide-induced constipation. These results indicates that a poly herbal formulation KTG075 accelerates evacuation and activated intestines.

• Journal of Korean Society of Forest Science
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• v.104 no.2
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• pp.285-293
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• 2015

This study aims to find some characteristics for the facilities of the 'Korea Forest Welfare for Life Cycle' through the domestic case analysis, so that we draw implications applicable to the policy on Korea Forest Welfare. For this, we brought and analyzed statistical data together from scattered sources. As the characteristics for the facilities of the Korea Forest Welfare for Life Cycle, first, there is the quantitative imbalance of forest welfare institutions for the each life cycle. Second, there is a lack of facilities in urban areas. Third, the facilities are mostly located in national or public forests. And, based on those characteristics, we suggest several things as follows that is applicable to the related policy. First, it is necessary to meet the needs of facilities that need to be built evenly for each life-cycle. Second, facilities of the Forest Welfare for Life Cycle which is adjacent to the life zone should be built more to increase accessibility. Third, forests in Korea are almost comprised of private forests. Using only national and public forests has an unfavorable condition to confer a benefits of forest welfare on the people evenly than using national, public and private forests all together. Therefore, there is a need to invigorate private capital and utilize private forests so that the favorable condition can be made to confer a benefits of forest welfare on the people evenly and adjust balance of the quantity for the facilities of forest welfare.

• Journal of Digital Convergence
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• v.14 no.12
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• pp.133-140
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• 2016

The study has been implemented for finding out a revitalization of the social enterprise to be continuously developed. In this research, social enterprise employees residing in JeollaNamdo were selected as the research members. The polled papers had 210 copies of total and 180 copies of recovery. The response results were written as a rule of their own way with advanced visit to them explaining how to write down. The collected data were analysed with T-test and ANOVA. As a result of the research, the system effectiveness of social enterprise is shown to influence the satisfaction of employees. Therefore, it is shown that the certification system and priority purchase system of local government can be effective. Second, it is shown that the satisfaction of employees of the social enterprise influences the satisfaction of employees. Therefore, it is shown that the need of finding out a new business item for a social enterprise to grow influences positively on the satisfaction of employees. Third, operation difficulty of the social enterprise is not shown to influence the satisfaction of employees. In other words, the satisfaction of employees is not influenced by a difficulty arising from not receiving the official recognition from local government on the social enterprise.

• Journal of Digital Convergence
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• v.18 no.9
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• pp.81-91
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• 2020

The logistics industry is a basic and strategic industry that supports the development of national economy and society. The purpose of this paper is to evaluate the logistics efficiency of 22 cities in Guangxi and Yunnan provinces in China, and to grasp the problems and constraints and present policy proposals to promote the transformation and upgrading of the industrial structure in Guangxi and Yunnan provinces. In this paper, five input indexes and four output indexes were selected and the data from 2016 to 2018 were analyzed through DEA method. According to the analysis, the logistics efficiency of Guangxi and Yunnan provinces is not bad overall, but the development of each region is not balanced and the level of logistics efficiency is quite different. And it is found that each city needs to further improve the level of scale because the input and production structure of logistics resources is unreasonable. The limitation of this study is that it is difficult to generalize the analysis results because only the data over the past three years have been analyzed. It is necessary to comprehensively implement longitudinal and transverse analyses by extending the future analysis period over a long period of time.

• 한국지구과학회:학술대회논문집
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• 2010.04a
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• pp.110-110
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• 2010

2009년 7월 23일-24일 양일간의 APEC MTF 컨퍼런스는 APEC 회원 경제가 아시아-태평양지역에서 광업부문의 지속가능한 발전의 주제를 토의할 기회를 제공했다. 본 컨퍼런스는 APEC의 광업부문의 지속가능한 발전이라는 프로젝트의 중요 부분이며 컨퍼런스의 활발한 참여는 프로젝트의 성공을 증진시켰다. 지속가능한 발전에 대한 안건이 수년간 APEC의 핵심부분이었으며, 특히 광업장관(MRM)회의에 상정되어 왔다. 2004년 6월 칠레 안토파가스타의 제1차 회의에서, 광업장관들은 APEC 지역에서 광업 및 금속산업의 지속가능한 발전은 부를 창출하고, 환경사업을 창출하며, 사회적으로 책임있는 발전을 도모하며 사회를 위한 향상된 가치를 만들어낸다는데 동의했다. 초기의 action item들 중에서 지속가능한 발전에 있어서 광물 및 금속의 기여를 규명하는 것도 있었다. 광업에 있어서 지속가능한 발전에 대한 안건의 토의는 2005년 10월 한국의 경주 제2차 APEC MRM 회의에서 속계되었다. 관련된 action task는 채광 후 토지운영 뿐만 아니라 에너지 효율기술, 광업 오염 통제 기술과 같은 환경친화적인 채광기술에 대한 정보교환 및 협조를 독려하는 것이었다. 2007년 호주 퍼스의 제3차 회의에서 APEC MRM 회의는 특히 지구화의 시대에 APEC 지역 광물자원의 지속가능한 발전에 대한 긴밀한 지역적 협조에 대한 필요성을 인지하고 있다. 장관들은 역시 광업부문에서 지속가능한 발전에 대한 APEC 위상을 정립하기 위한 작업을 주도하기로 했으며 APEC 경제의 공통관심사를 UNCSD에 반영키 위한 자료제공을 하기로 결정했다. APEC 광업분야의 지속 가능한 개발에 관한 APEC MTF회의는 호주, 캐나다, 칠레, 중국, 인도네시아, 일본, 말레이시아, 파푸아 뉴기니, 페루, 필리핀, 한국, 러시아, 싱가포르, 타이완, 태국, 미국, 베트남에서 자신들의 지속 가능한 개발을 위한 활동에 관한 발표나 의견을 제시하였다. 세계 은행이나 AIM에서도 발표를 하였다. 중요한 소주제들은 다음과 같다. $\cdot$ APEC MTF가 APEC 광업분야의 지속 가능한 발전을 추구하는데 있어 적절한 포럼이라는 것 $\cdot$ 기업들이 사회적 책임(CSR)을 성실히 이행할 필요가 있다는 것 $\cdot$ 수자원과 인적자원의 부족을 다룰 필요가 있다는 것 $\cdot$ 적절한 광산 복구가 필요하다는 것이다. 한국은 "광업분야의 지속가능한 발전을 위한 환경과 광업간의 균형"이라는 프로젝트 아이디어를 제안했다. 인도네시아와 말레이시아는 한국측 프로젝트 수행의 중요성을 강조했다. 러시아 연방은 "광업에 있어 투자 활성화"라는 프로젝트 아이디어를 제안했다. 이 관점에서 MTF는 APEC 투자전문가 그룹과의 협력을 지지했으며 이 포럼간 활동을 활성화시키기 위하여 APEC 사무국에 요청했다. 이 프로젝트는 세계 광업분야의 투자를 증진시키는 최적관행 분석에 따라 제안될 것이고 수행될 것이다. 말레이시아는 광업 및 광업 산업의 지속가능한 발전지시자를 위한 역량구축 프로젝트를 제안했다. 태국은 말레이시아의 제안을 지지했으며 공동프로젝트를 제안했다.

• International Commerce and Information Review
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• v.14 no.4
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• pp.517-541
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• 2012

Since the Korea-Chile FTA in 2003, eight FTAs are now in force including Korea-EU and Korea-US FTA. The government anticipate that FTAs increase the GDP of Korea. Government-related research institutes officially reports the positive economic impact in Korea. However, the report does not show that how much Busan economy is affected by the FTAs. For this reason, we study the economic effects of FTAs in Busan. We compare the trade statistics before and after the time each FTA is in force. The resulting figures show that the exports and trades of Busan with the FTA nations increased significantly after the enforcement. For example, the exports to Chile increased by 273% when we compare the three-year average trade. We also construct an econometrics model to estimate the price elasticity. The estimated elasticity of exports for manufactured goods is 1.38 while that of imports is 0.83. Among the manufacturing industry, machinery has the highest price elasticity, 1.8. The average tariff for manufactured goods is 3.9% for FTA nations, while that is 5.8% for Busan. This higher price fall in Busan is offset by the lower price elasticity to make Busan's export increase be greater than Busan's import increase. Busan's export increases by 4.8% while import increases by 3.7%. So, it is expected to be added to the annual trade surplus of approximately $107million.