118 research outputs found

    Using QSPM and WASPAS methods for determining outsourcing strategies

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    The aim of the current study is to select the best strategies for outsourcing development, applying decision-making tools that enable to make reasoned decision. To evaluate outsourcing strategies, a new model of Comprehensive Framework for Strategy Formulation and Selection is presented. Development of outsourcing of healthcare services in Tehran is analysed in the paper. Strengths, Weaknesses, Opportunities, and Threats analysis is used to evaluate the internal and external factors affecting the outsourcing of healthcare services in health deputy of the Tehran University of Medical Sciences in different aspects and to develop several possible outsourcing strategies. Quantitative Strategic Planning Matrix is applied for quantitative evaluation of strategies. It is proposed to validate the approach by applying Multiple Criteria Decision Making methods. Robust and accurate Weighted Aggregated Sum Product Assessment method is selected and applied for quantitative evaluation of strategies. Based on the consistency of the results of the both approaches, the five best strategies to develop healthcare services outsourcing are offered. First published online: 29 Apr 201

    Multi-criteria decision making in civil engineering: Part I ā€“ a state-of-the-art survey

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    For several decades, multi-criteria decision-making (MCDM) methods have been in use to address issues particular to design, organisation and management of constructions. This article reviews the history of MCDM methods since their origins to current times. The academic database Thomson Reuters Web of Science Core Collection was used to overview publications that contain keyword ā€œMCDMā€ and are included in Web of Science Category ā€œEngineering Civilā€. The analysis of publications was made according to their year, state, journals and used MCDM methods

    The 25th anniversary of the Journal of Civil Engineering and Management: editorā€™s introduction

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    In 2019, the Journal of Civil Engineering and Management commemorates its 25th year of publishing. Therefore, in this short introduction, the Editors would like shortly to overview Journalā€™s development and its current achievements. In addition, taking the opportunity, the Editors would like to thank the numerous Authors, the distinguished Advisory Editors and Editorial Board members, and the Reviewers who have contributed to the quality and the success of the Journal

    Bibliometric analysis of the Journal of Civil Engineering and Management between 2008 and 2018

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    The Journal of Civil Engineering and Management (JCEM) is a prestigious international journal in the field of engineering. This paper uses the method of bibliometric to study the status and development trends of the journal. Information was collected from the Science Citation Index (SCI) database. Firstly, the general citation structure and basic characteristics of the JCEM journal are investigated. Then, the most influential institutions, countries as well as their networks of cooperation are identified. Finally, the main research topics of the JCEM journal are explored by using the frequently used keywords. This paper explores the internal structure and development trend of the JCEM journal, which not only provides an important reference for the future development of this journal, but also provides an effective analysis method for the future evaluation of journals

    The 20th anniversary of the journal: Editor's introduction

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    ā€žThe 20thĀ anniversary of the journal: Editor's introduction"Ā Journal of Civil Engineering and Management, 20(3), p. 309-31

    Beyond CAPM: an innovative factor model to optimize the risk and return trade-off

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    Different models have tried to improve the Capital Asset Pricing Model findings, on the basis that different factors can affect asset return. This paper examines a series of explanatory factors, broader than those explained by traditional theory, to see whether they are able to more accurately explain the returns. Should the previous point be confirmed, we must consider that the risk of an asset depends on multiple factors, rather than the few that are usually identified in the literature. Even though more than 300,000 factors are examined in this paper, the results show that in recent years just 87 factors are able to fully explain the returns of 4,500 companies in the 15 European countries examined. Our analysis also shows that business and macroeconomic, rather than financial factors, are those that heavily bear on asset returns; and that factors that affect asset return, either only positively or only negatively, do not exist. However, the same factor can affect some companies positively and others negatively. Thus, since not all firms are always sensitive to the same factors, there is the possibility to further decrease risk in proportion to return, through a factor-based risk optimisation process

    A mixed interval type-2 fuzzy best-worst MACBETH approach to choose hub airport in developing countries: case of Iranian passenger airports

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    Hub airports are the ones that model networks in which most journeys go via a few central points. Famous hub airports deliver positive social and environmental impact to the communities along with economic effects. This paper is about to investigate indicators related to hub performance excellence from various angles, considering leading hub airports performance while determining the priorities in order to help airports especially in developing countries to find the way of progress. A list of Key Performance Indicators (KPIs) is prepared from the literature, which is prioritized using Best-Worst Method (BWM). The weights of these criteria are specified via application of interval type-2 fuzzy BWM. Then using five most important criteria, MACBETH (Measuring Attractiveness by a Categorical Based Evaluation TecHnique) ranking approach is used to analyse 19 Iranian international airports and find the most appropriate one for being hub airport. The results show Kish airport with the International Civil Aviation Organization (ICAO) code ā€œOIBKā€ is prior to other airports and can be chosen as the hub airport that means Iran airports holding company is suggested to focus more investments in this airport to gain fastest possible benefits of an international hub airport

    Upgrading the old vernacular building to contemporary norms: multiple criteria approach

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    Sustainable development is emphasized in the process of construction or modernization of buildings at present. Old vernacular architecture does not satisfy contemporary building norms such as daylighting and/or thermal performance parameters. These parameters are important for sustainability due to their relation with energy savings. It is obvious that seeking to improve these parameters, old buildings should be upgraded. The main problem is how to reach contemporary building norms without a negative impact to architectural heritage in a process of modernisation. The aim of the research is to find the best compromise solution for effective vernacular architecture's change. The Authors suggest using multiple criteria approach that enables to evaluate possible alternative solutions in several controversial aspects and to find rational building's modernisation type. Also, suitability of combination of usual MCDM (Multiple Criteria Decision Making) methods with grey systems theory due to possibility of processing of large quantity of uncertain information is highlighted in the research. TOPSIS Grey (Technique for Order Preference by Similarity to Ideal Solution with grey numbers) and AHP (Analytic Hierarchy Process) methods are applied for the presented case study of upgrading the old vernacular building. Taking into account multiple quantitative and qualitative criteria and experts' opinion, the rational vernacular building's modernisation variant is chosen. Based on the comprehensive analysis, research conclusions and recommendations are formulated

    Assessment of Buildings Redevelopment Possibilities using MCDM and BIM Techniques

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    The paper deals with abandoned former industrial buildings problem and buildingsā€™ redevelopment possibilities with emphasis on sustainable development. A complex decision-making model for redevelopment of abandoned buildings, combining Building Information Modelling (BIM) and Multiple Criteria Decision Making (MCDM) techniques, is proposed. A case study of a former measurement equipment factory is presented. Ranking of possible redevelopment alternatives of the building using Weighted Aggregated Sum Product Assessment method with grey attributes scores (WASPAS-G) is proposed and the most rational projects are selected. While BIM techniques supports an effective selection process and allows implementation of full lifetime management strategy of a project and then of a real object.12th international conference ā€œModern Building Materials, Structures and Techniquesā€ (MBMST 2016

    Analysis and prevention of construction site accidents

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    Iz analiza izvjeÅ”taja o gradiliÅ”nim nesrećama može se zaključiti da do nesreća najčeŔće dolazi tijekom rada na visini i zbog nekoriÅ”tenja ili neodgovarajućeg koriÅ”tenja osobnih zaÅ”titnih sredstava. Zbog toga se u ovom radu daje nekoliko mogućnosti osobnih zaÅ”titnih sredstava koja se koriste za prevenciju pada s visine. Predlaže se odabir najprikladnijeg zaÅ”titnog sredstva primjenom nove metode za viÅ”ekriterijsko odlučivanje (engl. multiple criteria decision making - MCDM) s ocjenjivanjem ponderiranih skupnih proizvoda i sivim brojevima (engl. weighted aggregated sum product assessment with grey numbers - WASPAS-G) kako bi se pridonijelo naporima za sprečavanje nesreća tijekom rada na visini.The analysis of reports on construction site accidents suggests that most accidents involve work at high elevations and the lack or inappropriate use of personal protection devices. Therefore, the paper provides several alternatives of personal protection devices intended for the prevention of falls from elevations. It is suggested to select the most appropriate protection device using the new multiple criteria decision making (MCDM) method of the weighted aggregated sum product assessment with grey numbers (WASPAS-G) to help prevent accidents when working at elevations
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