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AHP 기법을 이용한 10,000 TEU 이상 컨테이너선에 적용되는 선박평형수 처리장치 최적제품 선정에 관한 연구 (An Application of AHP for the Selection of Optimum Product of BWTS for over 10,000 TEU Container Ship)

  • 이상원;김동준;서원철
    • 대한조선학회논문집
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    • 제52권5호
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    • pp.395-406
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    • 2015
  • The Ballast Water Treatment System was developed to prevent the unintended transport of unwanted organisms from one region to another as demanded by the IMO (International Maritime Organization). Although various types of BWTS in the world have been developed until now and applied to various ships, there has been no systematic basis for its selection and installation. Currently, the system selection and installation are as per ship owner’s suggestion or by easy installation point of view by the shipyard. In order to organize, systemize and solve problems related to the selection and installation of BWTS, a definitive study has been performed to come up with the best alternative to derive value and criteria which were to be met for vessels which are to be equipped with BWTS. Multiple criteria were compared alongside each other during the course of this study. Accordingly an AHP (Analytic Hierarchy Process) analysis method for A, B and C companies were done for container ships with size 10,000 TEU and above. Equipment type for “A” company is “Filter, UV & TiO2” combined type. For “B” company it is “Filter & UV” combined type. Finally for “C” company it is “Electrolysis” type. Henceforth, the results of this study aims to come up with the optimum way to select the best and the most suitable BWTS for a certain vessel.

도시발전 전략에 있어 정체성 형성과 공적 공간의 구축에 관한 비판적 성찰 (A Critical Reflection on Formation of Regional Identity and Construction of Public Space in Urban Development Strategy)

  • 최병두
    • 한국지역지리학회지
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    • 제14권5호
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    • pp.604-626
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    • 2008
  • 최근 도시발전 전략으로 정체성의 형성이 강조되고 있다. 이는 한편으로 인간의 존재론적 안전감을 위해 상실된 전통적 정체성의 규범적 복원, 다른 한편으로 도시들 간 경쟁에서 우위를 점하기 위한 도시 이미지의 전략적 제고라는 이중성을 가진다. 이러한 이중성은 근대적 정체성에 대한 포스트모던 이론가들(라캉, 푸코, 들뢰즈 등)의 비판과 이에 대한 대안으로 공적 공간을 통한 정체성을 강조하는 아렌트나 하버마스의 논쟁 속에 반영되어 있다. 이 논문은 정체성 개념이 담고 있는 도시 정책적 함의를 고찰하는 한편, 이 개념이 실제 정체성 고양을 명분으로 한 도시 발전 전략에서 어떻게 왜곡되게 원용되고 있는가를 비판하고자 한다. 특히 이 논문은 포스트모던 이론가들의 입장을 현실의 의사적 정체성에 대한 비판과 관련시키는 한편, 공적 공간을 통한 진정한 정체성의 형성을 강조하는 비판이론가들의 주장을 도시발전 정책의 규범적 대안으로 이해하고자 한다.

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대안적 작업조직 유형과 노동자 성과에 관한 실증적 고찰 - 제조업의 린 방식을 중심으로 - (An Empirical Study on the Alternative Work Organization and Workers' Outcome - Focus on Lean Production -)

  • 손동희
    • 산업노동연구
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    • 제17권1호
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    • pp.1-36
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    • 2011
  • 대안적 작업조직을 둘러산 다양한 주장과 논쟁이 단위조직 사례연구를 토대로 이론적 개념적 차원에서 제기되어 왔으나 정작 노동자 관점에서의 양적 검증은 상대적으로 부족했다. 이 글은 한국직업능력개발원의 인적자본 기업패널 제조업 자료를 이용하여 대안적 작업조직의 대표적 형태로써 테일러 방식과 린 방식, 자율팀 방식을 유형화한 후 각각 조직의 재무적 성과와 노동자 성과에 어떤 영향을 미치는지 분석하고자 하였다. 특히, 국내 제조업의 경우 린 방식의 대표적 특성인 QC, 제안활동 등의 개별참여 관행이 확산되고 있다는 측면에서, 린 방식을 준거로 사회기술체계의 특성을 고려한 자율팀과 테일러 방식을 비교 분석하였다. 분석 결과, 대안적 작업조직으로써 린 방식과 자율팀 방식이 테일러 방식에 비해 조직성과 뿐만 아니라 노동자 개인의 성과측면에도 보다 긍정적인 것으로 파악되었다. 그러나 린 방식과 자율팀 방식간 비교에서는 조직성과에 미치는 영향은 통계적으로 유의한 차이를 보이지 않은 반면, 노동자 개인의 성과로써 노동시간, 소득, 직무만족도, 조직몰입의 모든 결과변수에 대해 린 방식이 자율팀 방식에 비해 일관된 부정적 영향을 미치는 것으로 파악되었다. 린 방식이 품질개선과 조직성과 향상을 위한 우월한 작업조직이라는 주류적 공감에도 불구하고, 그와 같은 기제의 이면에는 드러나지 않았던 노동자 개인의 성과가 훼손되었을 가능성을 시사하였다.

의료기관(醫療器管)의 의료(醫療)서비스 질(質) 개선(改善)에 관한 연구(硏究) - 환자만족도(患者滿足度)(Patient Satisfaction)를 중심으로 - (A study of medical service quality improvement in a medical institution)

  • 전병욱;홍성천;유병완
    • 대한한의정보학회지
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    • 제15권1호
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    • pp.67-76
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    • 2009
  • Quality management is a recent phenomenon. Advanced civilizations that supported the arts and crafts allowed clients to choose goods meeting higher quality standards than normal goods. There are many methods for quality improvement. Health care, refers to the treatment and management of illness, and the preservation of health through services offered by the medical, dental, complementary and alternative medicine, pharmaceutical, clinical laboratory sciences (in vitro diagnostics), nursing, and allied health professions. Health care embraces all the goods and services designed to promote health, including "preventive, curative and palliative interventions, whether directed to individuals or to populations. The overall impact of managed care remains widely debated. Proponents argue that it has increased efficiency, improved overall standards, and led to a better understanding of the relationship between costs and quality. Practices can solicit feedback from patients in a variety of ways: phone surveys, written surveys, focus groups or personal interviews. What do I do with the results? While you don't have to act on every suggestion that your patients give you, you should take action on the key items that are causing dissatisfaction.

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3D 프린팅 실무 적용을 위한 건설 관련법 제도적 개선 방향 (Institutional Improvement of Construction-Related Laws for Practical Application of 3D Printing)

  • 이성민;박상훈
    • 한국공간구조학회논문집
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    • 제19권4호
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    • pp.85-94
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    • 2019
  • Then 3D printing is used practically at construction sites, there is a serious lack of studies on the conflict with construction-related laws and expected operational problems. Accordingly, the purpose of this study is to present obstacles and directions for improvement in construction-related laws (Building Act, Construction Technology Promotion Act, Housing Act, Construction Machinery Management Act, etc.) for practical operation of 3D printing. The important results are as follows. Amending existing construction-related laws for 3D printing is irrational and inefficient in terms of structure and material. This study proposed a method of satisfying performance required by laws or standards based on the performance design method presented in existing laws and systems through structure and material performance certification procedure. In addition, inclusion of 3D printing equipment in the Construction Machinery Management Act results in various restrictions such as equipment inspection and certification of machine parts. As such restrictions can block vitalization of 3D printing, a long-term and step-wise approach was suggested.

간질의 분류법에 대한 동서의학적 문헌고찰 및 새로운 제안 (A Critical Review on the Epilepsy-related Classification Systems Delineated in the Literatures both Western and East Asian Medicine : A Suggestion to Develope a New Classification)

  • 손광현;김문주
    • 대한예방한의학회지
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    • 제14권2호
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    • pp.135-148
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    • 2010
  • The major purpose of this study is to evaluate the classification of epileptic seizure types and epilepsy described in the literatures of both Western and East Asian medicine, especially based on the two criteria- a theoretical and a practical aspect of the classification systems. Currently, the 1981 classification of epileptic seizure types, and the 1989 classification of epilepsy syndromes and epilepsies which were proposed and approved by the International League Against Epilepsy(ILAE) have been generally accepted worldwide, although a variety of modifications have been consistently suggested. A large proportion of epilepsy cases cannot be easily classified as either 'focal' or 'generalized' or as either 'symptomatic' or 'idiopathic', so they fail to be precisely fallen into any of the ILAE categories. Terms and concepts used in the East Asian medicine are also inadequate to identify epileptic seizure types and epilepsy syndromes as discrete diagnostic entities because of ambiguities in definition and use. Therefore, this article suggests an alternative approach not only more helpful in understanding mechanism of epilepsy but also more easily applicable and effective in clinical value.

업무상호의존성과 사용자참여가 소프트웨어 개발 프로젝트 성과에 미치는 영향 (The Effect of Task Interdependence and User Participation on Software Development Project Performance)

  • 홍명헌;김신곤;김정곤
    • Journal of Information Technology Applications and Management
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    • 제12권1호
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    • pp.213-229
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    • 2005
  • Cost overrun or schedule delay of the software development project happens frequently despite that software developers continue to make every effort for the effective management of the projects. Previous researches have ascertained that these problems are ascribed to the uncertainty of projects and the improper management of the projects. The purposes of this research are to investigate the impacts of user participation and task interdependence on the performance of the projects and also to find out the appropriate project management method to improve the project performance. Even though the model fitness of the path model is proved to be very high, the verification of the hypotheses showed a variety of results including the four verifications and the one refutation of the hypotheses as well as the suggestion of one alternative hypothesis. The contribution of this research is that the integration model is proposed and verified, comprising the relationship among the user participation, the task interdependence, and the performance of software development projects. A project manager can utilize the implication of this research for an effective management of software development project.

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주거환경개선사업지구의 필지개발 방안에 관한 연구 - 개별필지집적방식에 의한 노인복지공동주택사업의 적용가능성을 중심으로 - (The research of estate development scheme in residential environment improvement)

  • 정은정;이희진;양병옥;김주석;이연숙
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2008년 추계학술발표대회 논문집
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    • pp.235-240
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    • 2008
  • When rate of stated and public owned demesne in residential environment improvement is low under the limited resources of revenues, the new infrastructure for the maintenance of the existing estate has increased land reduction rate thus the place where lot of small estate find it difficult to accept as the feature of residential environment improvement. Although 'Diffusion model of residential environment improvement' which designed to overcome existing residential environment improvement, is middle of progress, there is not any suggestion made to solve problem caused by short of estate in order to maintain small estate and total Infrastructure. In feature of resident, we also notice ageing not only facilities and building. 'Elderly housing' can be presented as an alternative living style to solve housing and elderly matter which are caused by accumulation of individual estate and aging at once. Therefore, this research identifies resident's perception about elderly housing and recognizes task and potentialities that has to be solved in order to apply virtually to residential environment improvement.

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Quorum quenching for effective control of biofouling in membrane bioreactor: A comprehensive review of approaches, applications, and challenges

  • Kose-Mutlu, Borte;Ergon-Can, Tulay;Koyuncu, Ismail;Lee, Chung-Hak
    • Environmental Engineering Research
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    • 제24권4호
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    • pp.543-558
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    • 2019
  • In comparison to alternative advanced wastewater treatment technologies, the main problem associated with membrane bioreactor (MBR) technology, which has become prominent in recent years, is biofouling. Within these systems, biofouling is typically the result of a biofilm layer resulting from bacterial gathering. One biological system that can be employed to interrupt the process of bacterial gathering is called 'Quorum Quenching (QQ)'. Existing QQ applications can be classified using three main types: 1) bacterial/whole-cell applications, 2) direct enzyme applications, and 3) natural sourced compounds. The most common and widely recognized applications for membrane fouling control during MBR operation are bacterial and direct enzyme applications. The purpose of this review was to identify and assess biofilm formation mechanism and results, the suggestion of the QQ concept and its potential to control biofilm formation, and the means by which these QQ applications can be applied within the MBR and present QQ MBR studies.

대학병원의 시장경쟁력 강화를 위한 리포지셔닝에 관한 연구 (A Study on the Repositioning for Strengthening University Hospitals Competitiveness)

  • 송만석;윤기호
    • 한국병원경영학회지
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    • 제22권3호
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    • pp.105-117
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    • 2017
  • This study was performed to provide medical service providers with useful information for their market competitiveness and decision making. It is regarding positioning map and repositioning map strategy to enforce market competitiveness through bench marking of a specific hospital which has been relatively underestimated in the market. With AHP and biplot analyses for this study, we could identify priority of properties that medical service consumers consider when they choose a university hospital and market competitiveness of alternative university hospitals. It is expected that the study of repositioning strategy to Strengthening Market Competitiveness will provide efficient problem solving method to allocation restricted resources by repositioning the specific university hospital through benchmarking with evaluation factors of the most market competitiveness university hospital. When Inje University Paik Hospital was benchmarked and repositioned, the share of Paik hospital increased and there was only 3.1% difference from Dongah Dong-A University Hospital, which occupied the first place in market competitiveness. Such the results of this study may suggestion management strategies to provide efficient problem solving methods when companies responding to rapidly changing management environments allocation restricted resources.