• Title/Summary/Keyword: Multi-Criteria

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An Application of the Analytical Hierarchy Process (AHP) for Safety measurement in Malaysian Construction Industry

  • Samad Doostdar;Zubaidah Ismail
    • International conference on construction engineering and project management
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    • 2013.01a
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    • pp.66-73
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    • 2013
  • Analytical Hierarchy Process (AHP) is a famous method amongst Multi Criteria Decision Making (MCDM), set up by Saaty in 1980. AHP can be determined as a methodology of hierarchical analysis following reasonable decision making with make simpler a difficult crisis. Decision making in systems of Safety management concerned multipart challenges. AHP is process for get better the composite decisions understanding with analyzes of the problem in a structure of hierarchy. The integration all of applicable decision criteria, their pair wise judgment permits the decision maker to establish the trade-offs amongst objectives. In recent years, Malaysian's economy and infrastructure development have significantly and rapidly risen. The construction industry continues to play a major role in this development as many construction activities have been carried out to meet the high demands of the expansive market. However, the construction industry has faced a wide range of challenges, one of which is the frequent occurrences of accidents at the workplace. An effective safety program can substantially reduce accidents because it can help management to build up safer means of operations and create safe working environments for the workers. Furthermore, by having an effective safety programs, good safety culture can be embedded in organization because it can encourage mutual cooperation between management and workers in the operations of the programs and decisions that affect their safety and health. The focus of this research is development methodology of Analytics Hierarchy Process (AHP) in construction safety factors and investigates the levels of some effective elements in SMS in Malaysian construction industries.

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Contribution Value Estimation on Rural Community by Multi-cultural Family Effect Using WTP (WTP를 이용한 다문화가족이 농촌사회에 미치는 다양한 영향 및 기여가치 평가)

  • Yang, Soon Mi
    • Journal of Agricultural Extension & Community Development
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    • v.20 no.3
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    • pp.701-727
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    • 2013
  • To estimate the WTP(Willingness to Pay) for consistent maintenance of rural multi-cultural families' contribution worth such as vitality of rural population, regional economic vitalization, cultural diversity of rural, maintenance of rural family society, and diversity of rural resource, a questionnaire survey was conducted by double-bounded dichotomous choice method based on Weibull model in 41 city county of rural. A estimation models based on Tunball models were developed and applied to WTP estimation with logistic analysis. WTP estimates for consistent maintenance of multi-cultural contribution worth by rural resident was 458 hundred million won. It means that each rural household can pay 13,840 won per annual. WTP estimates assessed by multi-cultural families' husband as a criteria for comparison was 502 hundred million won. It means that each household can pay 15,170 won per annual.

Study of functional trend in japan's multi-family housing and comparison through nation's environmental certification standard, analyzed by CASBEE assessment result sheet (CASBEE 평가분석을 통한 일본 주요도시 집합주택의 성능 동향 및 국내 친환경 건축 인증기준과의 비교검토에 관한 연구)

  • Shim, Jae-Myung;Kim, Kang-Soo
    • KIEAE Journal
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    • v.13 no.2
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    • pp.113-122
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    • 2013
  • On July 2004, the brand new CASBEE for construction (Brief version) has completed while trying to highlight and improve major items adequate for each region's characteristics in Japan; at the same time, from the start of NAGOYA CITY (operated since April 2004) to the point of May 2011, it has been mandatory for specified size buildings in 23 regions by law. Evaluation sheet of CASBEE is published on each region's home page and various genre of information on building evaluation which is scheduled to be completed by 2016 and is for 5-6 years of quantity is accumulated until October 2012. It is good study resource to verify how new buildings being evaluated are closely match with CASBEE's original purport (eco-friendly, energy efficiency, publicity etc). Particularly, for Japan's multi-family housing where small sized mid to high level single housing type is majority in city, it is an important point that improved performance on eco-friendly buildings have more value in city rather than suburb. Categorized score through evaluation is a resource to confirm the latest trend of multi-family housing built in congested city; on the other hand, demand of the time can be recognized by the score focused on category. It is meaningful resource to determine the adequacy of evaluated items and the degree of reality.

Multi-Objective Optimization of Steel Structures Using Fuzzy Theory (퍼지 이론을 이용한 강구조물의 다목적 최적설계)

  • Kim, Ki-Wook;Park, Moon-Ho
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.8 no.4
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    • pp.153-163
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    • 2004
  • The main objective of this study is to develop a multi-objective fuzzy optimum design program of steel structures and to verify that the multi-objective fuzzy optimum design is more reasonable than the single objective optimum design in real structural design. In the optimization formulation, the objective functions are both total weight and deflection. The design constraints are derived from the ultimate strength of service ability requirement of AISC-LRFD specification. The structural analysis was performed by the finite element method and also considered geometric non-linearity. The different importance of optimum criteria were reflected with two weighting methods ; membership weighting method and objective weighting method. Thus, designers could choose rational optimum solution of structures with application of two weighting methods.

Ground Vibration Test for Korea Sounding Rocket - III (KSR-III의 전기체 모달 시험)

  • 우성현;김영기;이동우;문남진;김홍배
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2002.05a
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    • pp.441-447
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    • 2002
  • KSR-III(Korea Sounding Rocket - III), which is being developed by Space Technology R&D Division of KARI(Korea Aerospace Research Institute) will be launched in late 2002. It is a three-stage, liquid propellant rocket which can reach 250 km altitude and will carry out observation of ozone layer and scientific experiments, such as microgravity experiment, and atmospheric measurement. KSR-III is believed to be an intermediate to the launch vehicle capable of carrying a satellite to its orbit. Space Test Department of KARI performed GVT(Ground Vibration Test) fer KSR-III EM at Rocket Test Building of KARI. GVT is very important for predicting the behavior of rocket in its operation, developing flight control program and performing aerodynamic analysis. This paper gives an introduction of rocket GVT configuration and information on test procedures, techniques and results of It. In this test. to simulate free-free condition, test object hung in the air laterally by 4 bungee cords specially devised. For the excitation of test object, pure random signal by two electromagnetic shakers was used and total 22 frequency response functions were achieved. Polyreference parameter estimation was performed to identify the modal parameters with MIMO(Multi-Input-Multi-Output) method. As the result of the test, low frequency mode shapes and modal parameters below 60Hz were identified

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Study on the Multi Functional Base Circuit for Fire Detector (다기능형 화재감지기 베이스에 관한 연구)

  • Baek Dong-Hyun;Park Sang-Tae;Lee Bog-Young;Lee Byung-Gon;Chun JI-Yong
    • Fire Science and Engineering
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    • v.19 no.1 s.57
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    • pp.99-103
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    • 2005
  • This study is the mono signal detector and the multitype detector of mono signal On/Off circuit type. The multi functional base circuit focused on which is made of compatible with exiting fire detector base. The multi functional base circuit generates two fire signals at the same time, so it can link the existing fire alarm system with security system. The base circuit is easily able to be connected to exiting HA or OA facilities, having stability and reliability. As a result of the study, the multi functional base circuit has met the acceptance criteria of related national standards. Also, the security system of input signal can contribute to the smallest loss of lives and the property.

Trend Analysis based Strategy Evaluation for Launch Vehicle Industry in Korea (한국의 우주발사체 산업 발전을 위한 우주발사서비스 시장진입 전략 평가)

  • Hong, Seulki;Ahn, Jaemyung
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.43 no.10
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    • pp.936-942
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    • 2015
  • This paper suggests the significant strategies and their priority to deal with space transportation market trends. First, market trends related with technical improvement and change in demand are analyzed by the literature research. The three key trends are obtained: 'Increasing Demand of High-Performance Launch Vehicles', 'Rising of Low-Price Launch Vehicles', and 'Rising of Dual/Multi-Launch'. And then, strategies for developing the launch vehicle industry in Korea are selected from several studies about commercialization of Korean launch vehicle. The strategies are evaluated by the experts through pairwise comparison matrix and the criteria for this process is how significantly does the strategy effect on the launch vehicle industry through market assessment. As a result, reliable order of priority among the strategies are obtained. Under the three key trends, strategy to enhance reliability is most important. And, strategy to have price competitiveness has secondary priority to deal with 'Rising of Low-Price Launch Vehicles' trend and 'Rising of Dual/Multi-Launch' trend. On the contrary, strategy of government's support is secondary under 'Increasing Demand of High-Performance Launch Vehicles' trend.

Cleaning Validation Studies for Multi-Purpose Facility : Vial Filling Machine (다품목 공용 제약설비인 바이알 충전기에 대한 세척공정 밸리데이션)

  • Choi, Han-Gon;Yang, Ho-Joon;Kim, Young-Ran;Sung, Jun-Ho;Hwang, Ma-Ro;Kim, Jong-Oh;Yong, Chul-Soon
    • Journal of Pharmaceutical Investigation
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    • v.39 no.4
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    • pp.263-267
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    • 2009
  • The purpose of this study is to evaluate the efficacy of stipulated cleaning process, and the prohibition of cross-contamination and microbiological contamination, which inadequate cleaning in multi-production could occur, through cleaning validation of multi-purpose facility used to produce five biopharmaceutical products as sterile injection. After production of five biopharmaceutical products such as hGH, rhGCSF, rhEPO, rhFSH and rhIFN using vial filling machine, the cleaning validation such as residual analysis of active ingredients or human serum albumin, measurement of total organic carbon (TOC), residual analysis of detergent and microbiological contamination were carried out. In the case of rhGH and rhGCSF clean validations, drug residues were not detected. Furthermore, in the case of rhEPO, rhFSH and rhIFN clean validations, human serum albumin residues were not detected. At TOC (total organic carbon) analysis, all clean validations gave the TOC of about average 137.93%, not more than 150% of acceptance criteria. At sodium analysis for the checking of residues of cleaning agent, sodium residues were not detected. In sterility test, they showed no microbiological contamination of bacteria and fungi. Thus, this cleaning validation was determined as successful in protection of cross-contamination and induction of safety in multi-purpose facility.

A Evaluation System for Preference based on Multi-Emotion (다중 감성 기반의 선호도 평가 시스템)

  • Lee, Ki-Young;Lim, Myung-Jae;Kim, Kyu-Ho;Lee, Yong-Whan
    • Journal of the Korea Society of Computer and Information
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    • v.16 no.5
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    • pp.33-39
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    • 2011
  • In modern society, in business decisions of our customers are continually increasing in importance, and owing to the development of information and communication technology effectively on a computer to measure the preferences of key customer techniques are being studied. However, this preference reflects significantly on personal ideas, and therefore, it is difficult to commercialize a measure calculated according to the ambiguous results. In this paper, by using biometric information that has been measure; we have configured the multi-sensitivity models based on customer preferences to evaluate the proposed system. This system consists of multiple biometric information of multi-dimensional vector model for learning through the use of structured emotional to apply the same criteria to evaluate customer preferences. In addition, by studying the specific subject-specific emotion model, it is shown to improve accuracy with further experiments.

The Data Processing Method for Small Samples and Multi-variates Series in GPS Deformation Monitoring

  • Guo-Lin, Liu;Wen-Hua, Zheng;Xin-Zhou, Wang;Lian-Peng, Zhang
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • v.1
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    • pp.185-189
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    • 2006
  • Time series analysis is a frequently effective method of constructing model and prediction in data processing of deformation monitoring. The monitoring data sample must to be as more as possible and time intervals are equal roughly so as to construct time series model accurately and achieve reliable prediction. But in the project practice of GPS deformation monitoring, the monitoring data sample can't be obtained too much and time intervals are not equal because of being restricted by all kinds of factors, and it contains many variates in the deformation model moreover. It is very important to study the data processing method for small samples and multi-variates time series in GPS deformation monitoring. A new method of establishing small samples and multi-variates deformation model and prediction model are put forward so as to resolve contradiction of small samples and multi-variates encountered in constructing deformation model and improve formerly data processing method of deformation monitoring. Based on the system theory, a deformation body is regarded as a whole organism; a time-dependence linear system model and a time-dependence bilinear system model are established. The dynamic parameters estimation is derived by means of prediction fit and least information distribution criteria. The final example demonstrates the validity and practice of this method.

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