• Title/Summary/Keyword: Location criteria

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A Study on the Determinants Affecting Global Tramper Companies' Bunkering Port Selection Using AHP Method (AHP를 활용한 부정기선사의 벙커링 항만 선정요인에 대한 연구)

  • Ahn, Ji Young;Ryu, Hee Chan;Lee, Choong-bae
    • Journal of Korea Port Economic Association
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    • v.38 no.3
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    • pp.15-28
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    • 2022
  • Bunkering refers to the supply of bunker fuel necessary for the ship operation, as well as minimizing the price and supply cost of fuel itself, and includes supplying good quality fuel oil in a timely manner and at the optimal port. Bunkering is an important criterion in terms of cost for shipping companies because bunkering involves a significant cost to the purchaser of bunkering from the time of initial purchase. This study aims to prioritize selection criteria for tramper companies to call port for bunkering. For this study, the variables were selected by analyzing the common criteria such as price, location, bunker quality and service and infrastructure etc. employed in previous studies. The AHP method was employed to prioritize the criteria in order. As a result of the analysis, the high level factors appeared in the order of price, location, bunkering quality and port service and infrastructure factors. The importance of price criterion and location criterion was found to be high. In the low level criterion of price, the bunker price per MT was ranked first in importance. In terms of location criteria, the location on the main trade route was high. In the low criteria of bunker quality and port service, the bunkering available types and bunker quality were found to be important factors, and in the low level criteria of infrastructure, anchorage and availability of bunkering during loading and discharging and port security factors were found to be important criteria. This study provides the guidelines for research designed to compare the bunkering port selection factors and to derive their importance suggesting the ways to enhance competitiveness as a bunkering port.

A Study of the Improvement on Method and Detailed Criteria for Education Environment Evaluation -Focused on School Location- (교육환경평가제도의 세부적 평가기준 개선방안에 관한 연구 - 교육시설의 입지적 측면을 중심으로 -)

  • Kim, Hyung-Don
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.11 no.2
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    • pp.38-50
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    • 2012
  • The purpose of this study was to Improvement proposal on Item and Detailed Method for Education Environment Evaluation, Focused on School Location. This Study are as follows. 1. Research on Location Theory and relation Law 2. Improving research by School Experts(Health&construction& administration) 3. Present a Detailed quantitative assessment criteria 4. Pilot Survey on Education Environment Evaluation So, this result will be used in decision-making-process of land use planning, public land development construction, urban design and city policy.

A Study on the Location Assessment of Rural Village Construction Project (신규마을 조성사업의 입지 평가에 관한 연구)

  • Lee, Byunghark;Jung, Namsu;Kim, Jongbong
    • Journal of The Korean Society of Agricultural Engineers
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    • v.61 no.4
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    • pp.97-103
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    • 2019
  • If the new town development project begins with inappropriate location then it will be difficult to recruit tenants and the proportion of the infrastructure cost could increase. It is necessary to evaluate the feasibility of the new town development projects to solve this problem. This study aims to identify the current status of the new town development projects and draw up evaluation criteria by examining advanced researches. To identify the importance of each village, we set up the weights through analytic hierarchy process. The evaluation criteria were classified into location conditions and economical efficiency. In the case of location conditions, it was classified into available size, geographical conditions, and accessibility. As a result of analyzing the questionnaire, it was subdivided into officially assessed land prices in case of economic efficiency. This study had some limitations, that is we focused on the location conditions and economic feasibility among other factors. Therefore further study should contain analysis more on socio-cultural aspects such as residents' cooperation or will for this project. By adding results later, we can make more reasonable decisions when we choose appropriate area.

A Study on the Decision-making of Minimax Facility Location (Minimax에 의한 설비입지의 의사결정에 관한 연구)

  • 전만술;이성옥
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.8 no.12
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    • pp.1-6
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    • 1985
  • The purpose of this study is to consider the criteria for decision-making of facility location in view of Minimax. As an illustration of the location of storerooms in a manufacturing plant that minimizes the maximum distance workers must travel to reach a storeroom, the number and variety of location problems that can be formulated appropriately as minimax problems are sizable. A minimax solution can be interpreted as a grease the squeaky wheel solution In solving a minimax location problem, costs other than the maximum cost are not considered.

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An Assessment of Air Sampling Location for Stack Monitoring in Nuclear Facility (원자력시설 굴뚝 내 공기시료채취 위치의 적절성 평가)

  • Lee, JungBok;Kim, TaeHyoung;Lee, JongIl;Kim, BongHwan
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.15 no.2
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    • pp.173-180
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    • 2017
  • In this study, air sampling locations in the stack of the Advanced Fuel Science Building (AFSB) at the Korea Atomic Energy Research Institute (KAERI) were assessed according to the ANSI/HPS N13.1-1999 specification. The velocity profile, flow angle and $10{\mu}m$ aerosol particle profile at the cross-section as functions of stack height L and stack diameter D (L/D) were assessed according to the sampling location criteria using COMSOL. The criteria for the velocity profile were found to be met at 5 L/D or more for the height, and the criteria for the average flow angle were met at all locations through this assessment. The criteria for the particle profile were met at 5 L/D and 9 L/D. However, the particle profile at the cross-section of each sampling location was found to be non-uniform. In order to establish uniformity of the particle profile, a static mixer and a perimeter ring were modeled, after which the degrees of effectiveness of these components were compared. Modeling using the static mixer indicated that the sampling locations that met the criteria for the particle profile were 5-10 L/D. When modeling using the perimeter ring, the sampling locations that met the criteria for particle profile were 5 L/D and 7-10 L/D. The criteria for the velocity profile and the average flow angle were also met at the sampling locations that met the criteria for the particle profile. The methodologies used in this study can also be applied during assessments of air sampling locations when monitoring stacks at new nuclear facilities as well as existing nuclear facilities.

Analysis of Location Characteristic for Farmstead using GIS Method - With Rural Areas of Cheonan-city - (GIS 기법을 이용한 축산농장의 입지특성 분석 - 천안시 농촌지역을 중심으로 -)

  • Kim, Yong-Hoon;Kim, Dae-Sik
    • Journal of Korean Society of Rural Planning
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    • v.18 no.1
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    • pp.9-15
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    • 2012
  • This study used GIS method for the characteristic analysis of farmstead location in study area. The present study surveyed the coordinates of location for 76 livestock farmsteads with big size in rural areas within city of Cheonan. Based on the surveyed data, this study analyzed the spatial characteristics of location for the farmsteads by using both new evaluation criteria and their corresponding GIS (geographic information system) layers developed in this research. The criteria consist of six factors, which are 2 geographic factors for slope(SLO) and aspect(ASP) of earth surface, 3 accessability factors for distance from water area(DWA), road(DRO), and built-up area(DBA), including type of landuse(TLA). In the analysis results of six criteria using the grid funcations of GIS, the highest distributed ratios of the farmsteads per criterion were found at the lower slope area less then 2% in SLO, the area with south and south-east direction in ASP, the area with distance between 500m and 1,000m in both DWA and DRO, the area within 500m in DWA, and the paddy and upland area in TLA. As new finding of this study, these analysis results seemed that the farmsteads have been located at the better places with the priority to build and manage conveniently and economically.

A Study on the Store Choice Criteria and Store-Related Attitudes of Consumers in accordance with the Clothing Shopping Motives and Involvement of Customers (소비자의 의복 쇼핑동기와 관여도에 따른 점포 선택기준과 점포에 대한 태도)

  • Hong, Keum-Hee;Kang, Hye-Lie
    • Fashion & Textile Research Journal
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    • v.5 no.4
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    • pp.363-371
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    • 2003
  • This study is designed to identify the dimensions of clothing shopping motives and clothing involvements which influence consumers' store choice behaviors and to find out what variables have a direct influence on the attitudes of customers toward stores. The empirical research was made through the survey on 300 female and male shoppers who purchased clothing. The major results of this study are as follows : 1. The dimension of clothing shopping motives is composed of leisure-related shopping motive, products-related shopping motive, and economy-related shopping motive. And the dimension of clothing involvement consists of pleasure involvement factor, fashion involvement factor, and symbol involvement factor. 2. The dimension of the store choice criteria is composed of such five factors as promotion, products, prices/salespersons, service, and location. 3. There is a positive correlation of the products-related shopping factor and the leisure-related shopping motive only. And the store choice criteria have a positive correlation with all the factors of clothing involvement. 4. The high-shopping-motive group turns out to pay more importance to such factors as products and location than the low-shopping-motive group. 5. The variables which have influences on the attitudes of customers toward stores tum out to be such factors as fashion involvement, promotion in the store choice criteria, and gender.

A Comparative Study on the Location of grade 1,2,3 Automotive Repair Shops (1·2·3급 자동차 정비업체의 입지선정 비교)

  • Kim, Jong-Youl;Choi, Min-Cheol
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.18 no.4
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    • pp.973-985
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    • 2014
  • This study helps to select the criteria for the location automotive repair shops and suggests the optimum location. The weights representing relative importance of each criterion were calculated by using AHP(Analytic Hierarchy Process). Actually most of the location of automotive repair shops have been selected depending on decision makers' experience though very high initial costs are incurred. Also while studies have been done on the location of the smaller shops whose initial costs are low and service activities are simple, studies and cases on the location of automotive repair shop were not done and found before. This study helps to draw the weights of the criteria for the location of each one of grade 1, 2, 3 repair shop and compare and analyze them. As a result, it is found out that there is some differences between factors significantly considered when selecting the location of each repair shop. This study has significance of suggesting scientific methods to reduce risk in the decision making related to location of repair shop.

Location-based Selection of Services in Web Service Composition (웹 서비스 조합에서 서비스의 위치기반 선택)

  • Nasridinov, Aziz;Byun, Jeongyong
    • Proceedings of the Korea Information Processing Society Conference
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    • 2010.04a
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    • pp.674-675
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    • 2010
  • Since in web service composition, the same service may be offered by different providers with different Quality of Services (QoS) attributes, selection criteria are needed to select which Web Services will be considered for composition. Location of provider can be one of these criteria and intends to decrease the number of remote interactions between providers as well as reducing waiting time of service consumer. Therefore in this paper, we present technique for composing web services according to their location by semantically describing customer's goals and provider's web service capability by means of carefully designed ontology and logical expression.

Strain-based plastic instability acceptance criteria for ferritic steel safety class 1 nuclear components under level D service loads

  • Kim, Ji-Su;Lee, Han-Sang;Kim, Jong-Sung;Kim, Yun-Jae;Kim, Jin-Won
    • Nuclear Engineering and Technology
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    • v.47 no.3
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    • pp.340-350
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    • 2015
  • This paper proposes strain-based acceptance criteria for assessing plastic instability of the safety class 1 nuclear components made of ferritic steel during level D service loads. The strain-based criteria were proposed with two approaches: (1) a section average approach and (2) a critical location approach. Both approaches were based on the damage initiation point corresponding to the maximum load-carrying capability point instead of the fracture point via tensile tests and finite element analysis (FEA) for the notched specimen under uni-axial tensile loading. The two proposed criteria were reviewed from the viewpoint of design practice and philosophy to select a more appropriate criterion. As a result of the review, it was found that the section average approach is more appropriate than the critical location approach from the viewpoint of design practice and philosophy. Finally, the criterion based on the section average approach was applied to a simplified reactor pressure vessel (RPV) outlet nozzle subject to SSE loads. The application shows that the strain-based acceptance criteria can consider cumulative damages caused by the sequential loads unlike the stress-based acceptance criteria and can reduce the overconservatism of the stress-based acceptance criteria, which often occurs for level D service loads.