• Title/Summary/Keyword: Literature search

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Ant Colony System for Vehicle Routing Problem with Simultaneous Delivery and Pick-up under Time Windows (시간제약하 배달과 수거를 동시에 수행하는 차량경로문제를 위한 개미군집시스템)

  • Lee, Sang-Heon;Kim, Yong-Dae
    • Journal of Korean Institute of Industrial Engineers
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    • v.35 no.2
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    • pp.160-170
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    • 2009
  • This paper studies a vehicle routing problem variant which considers customers to require simultaneous delivery and pick-up under time windows(VRPSDP-TW). The objective of this paper is to minimize the total travel distance of routes that satisfy both the delivery and pick-up demand. We propose a heuristic algorithm for solving the VRPSDP-TW, based on the ant colony system(ACS). In route construction, an insertion algorithm based ACS is applied and the interim solution is improved by local search. Through iterative processes, the heuristic algorithm drives the best solution. Experiments are implemented to evaluate a performance of the algorithm on some test instances from literature.

Happiness of Medical Students and Tasks in Medical Education (의과대학생의 행복과 의학교육의 과제)

  • Lim, Eun Bi
    • Korean Medical Education Review
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    • v.13 no.2
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    • pp.25-37
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    • 2011
  • Purpose: Core competencies for becoming a good physician have been the focus of recent discussion. Understanding students' state of mind should be included in this analysis. Thus, the purpose of this study was to review recent research papers on subjective well-being in medical education and propose some suggestions. Methods: A selective search was conducted of the literature that has been published since 2000 in the Medline, Riss4U, ERIC, and KoreaMed databases using the search terms "happiness", "subjective well-being", "satisfaction", and "stress". Thirty seven studies were included in this review. Each was categorized according to 3 subjects (satisfaction, positive affect, negative affect). Results: Most studies showed relatively high levels of distress in medical students, which was related to academic worries. Although medical students were under a great deal of distress, they regarded help-seeking behavior for their distress as weakness or something negative. Conclusion: To decrease medical students' distress and sustain their well-being, there should be a change in students' awareness through curriculum, teaching methods, and coping strategies in medical education.

Distribution of the studies on the sachonghyeol(Four Command Points) in Korea (사총혈(四總穴) 관련 국내 연구 정리 분석)

  • Jung, Hyun-Jong
    • Korean Journal of Acupuncture
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    • v.27 no.3
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    • pp.119-127
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    • 2010
  • Objectives : The aim of the study is to analyze various studies subjected to sachonghyeol (SCH; Four command points) including ST36, BL40, LU7, LI4 in Korean literature. Methods : To analyze the results of SCH studies, The search was made through OASIS database. The search terms used were "ST36 OR BL40 OR LU7 OR LI4". Of 147 papers, 2 irrelevant papers were excluded and finally 145 papers were analyzed. Results : Thirty two studies were associated with pain control in various conditions using SCH. The pain control study of SCH covered 22 % of total studies. The next study topic was digestive function of SCH. Conclusion : To expand the clinical usage of SCH, the studies based on regulating function of SCH on ascending and descending ki, and coming in and out of ki are required to be performed in the future.

A Literature Study on Fermented Korean Medicinals Used in Dermatology (피부질환에 사용된 발효한약에 관한 문헌고찰)

  • Pahng, Sung-Hye
    • Korean Journal of Oriental Medicine
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    • v.17 no.3
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    • pp.53-60
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    • 2011
  • The objective of this article is to investigate the kinds of fermented Korean medicinals used to cure dermatological diseases in past Korea. The method to do this study was to search the books on the website, Knowledge of Oriental Medicine Web Service, databased and serviced by Korean Institute of Oriental Medicine. Books and related chapters were searched to find fermented medicinals. The results was as follows. According to the website search, eleven kinds of fermented medicinals could be found to cure scabies, leprosy, scrofuloderma, molluscum contagiosum and tinea capitis. The way how to ferment, the purpose of fermenting and regarding historical features could also be found.

Biotea-2-Bioschemas, facilitating structured markup for semantically annotated scholarly publications

  • Garcia, Leyla;Giraldo, Olga;Garcia, Alexander;Rebholz-Schuhmann, Dietrich
    • Genomics & Informatics
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    • v.17 no.2
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    • pp.14.1-14.6
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    • 2019
  • The total number of scholarly publications grows day by day, making it necessary to explore and use simple yet effective ways to expose their metadata. Schema.org supports adding structured metadata to web pages via markup, making it easier for data providers but also for search engines to provide the right search results. Bioschemas is based on the standards of schema.org, providing new types, properties and guidelines for metadata, i.e., providing metadata profiles tailored to the Life Sciences domain. Here we present our proposed contribution to Bioschemas (from the project "Biotea"), which supports metadata contributions for scholarly publications via profiles and web components. Biotea comprises a semantic model to represent publications together with annotated elements recognized from the scientific text; our Biotea model has been mapped to schema.org following Bioschemas standards.

Moebius syndrome - About Pathogenesis, Clinical manifestations, Diagnosis, and Treatment of Moebius - (뫼비우스 증후군 - 발병기전, 임상양상, 진단 및 치료 - )

  • Seung Ho Yu
    • Journal of Convergence Korean Medicine
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    • v.1 no.1
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    • pp.5-15
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    • 2021
  • Objectives: To review the concept of Moebius syndrome. Methods: Literature search was done to study definition, epidemiology, pathophysiology, clinical feature, and treatment of Moebius syndrome. Pubmed, RISS, Google scholarship and uptodate scholastic were used in the research. Search words were 'Moebius syndrome', 'treatment of Moebius syndrome'. Only English and Korean studies were assessed. Results: Moebius syndrome is rare disease characterized by nonprogressive congenital uni- or bi-lateral facial (VII cranial nerve) and abducens (VI cranial nerve) palsy. This facial palsy is found across the world, and its incidence is approximately 1 per 250,000. Moebius is diagnosed by clinical features. Facial palsy, eye abduction problem, limb deformities, global cerebral nerve impairment can be shown. Rehabilitation, smile surgery, and acupuncture can be used to treat this. Conclusion: Moebius syndrome's epidemiology, pathogenesis, treatment is still not fully revealed. It is known to be a congenital disease which didn't have exact treatment except surgery. But, it needs further study about exact treatment, diagnosis, and pathogenesis.

A Study on the Next Generation OPAC Functionalities Diffusion Status and Adoption by Academic Libraries (대학도서관의 차세대 OPAC 기능 채택과 확산 현황)

  • Doh, Tae-Hyeon;Jung, Young-Mi
    • Journal of Korean Library and Information Science Society
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    • v.44 no.2
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    • pp.197-215
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    • 2013
  • This study aims to explore the status and adoption pattern of next generation OPAC functionalities employed in Korean academic libraries. The paper is useful for future planning of next generation OPAC in academic libraries. This study firstly extracted major functionalities of next generation OPAC by reviewing literature and then the pilot test was conducted to validate them. The websites of 191 academic libraries in Korea were surveyed. For the accuracy of the data, the two researchers examined in redundant. The collected data were analyzed using PASW Statistics 18. 'Simple search box' was found to be the most popular function. The second popular function was 'search within results'. A few libraries used the 'clustering', 'open search plug-in', 'sort by relevance', and 'correct spelling error'.

The Uses of DSpace Metadata Elements in the Institutional Repository (국내 기관 리포지토리에서 DSpace 메타데이터 요소의 활용 현황)

  • Lee, Eun-Ju
    • Journal of Korean Library and Information Science Society
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    • v.47 no.4
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    • pp.465-487
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    • 2016
  • The purpose of this research is to investigate the metadata elements of institutional repository using DSpace and to provide the directions and strategies for constructing metadata. To the end, discussed in details are (1) understanding the background of development, features, elements of metadata, (2) figuring out the common metadata elements and the differentiated metadata elements for the institutional repository, (3) examining the search methods, search elements, and display elements of the insitutional repository, and (4) based on theses, suggested are directions and strategies for metadata of institutional repository using DSpace. The research methods were used such as literature review, the analysis of 4 domestic institutional repository.

K-Means-Based Polynomial-Radial Basis Function Neural Network Using Space Search Algorithm: Design and Comparative Studies (공간 탐색 최적화 알고리즘을 이용한 K-Means 클러스터링 기반 다항식 방사형 기저 함수 신경회로망: 설계 및 비교 해석)

  • Kim, Wook-Dong;Oh, Sung-Kwun
    • Journal of Institute of Control, Robotics and Systems
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    • v.17 no.8
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    • pp.731-738
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    • 2011
  • In this paper, we introduce an advanced architecture of K-Means clustering-based polynomial Radial Basis Function Neural Networks (p-RBFNNs) designed with the aid of SSOA (Space Search Optimization Algorithm) and develop a comprehensive design methodology supporting their construction. In order to design the optimized p-RBFNNs, a center value of each receptive field is determined by running the K-Means clustering algorithm and then the center value and the width of the corresponding receptive field are optimized through SSOA. The connections (weights) of the proposed p-RBFNNs are of functional character and are realized by considering three types of polynomials. In addition, a WLSE (Weighted Least Square Estimation) is used to estimate the coefficients of polynomials (serving as functional connections of the network) of each node from output node. Therefore, a local learning capability and an interpretability of the proposed model are improved. The proposed model is illustrated with the use of nonlinear function, NOx called Machine Learning dataset. A comparative analysis reveals that the proposed model exhibits higher accuracy and superb predictive capability in comparison to some previous models available in the literature.