scholarly journals Sustainable Construction by Means of Improved Material Selection Process

2019 ◽  
Vol 3 (1) ◽  
pp. 85 ◽  
Author(s):  
Koorosh Gharehbaghi ◽  
Maged Georgy
Keyword(s):  
Energy Savings ◽  
Material Selection ◽  
Selection Process ◽  
Sustainable Construction ◽  
Construction Operation ◽  
Selection Factors ◽  
Strength And Durability ◽  
Operation Cost ◽  
Selection Of

Whilst sustainable construction relates to both a building’s structure and the use of proper life cycle processes, the selection of the most appropriate material/s is deemed a considerable undertaking. Throughout a building’s lifecycle that extends from design, construction, operation, maintenance, renovation, until demolition, the selection of sustainable material/s is a particularly crucial task for the development and establishment of such structures. Traditionally, there are three main materials for general construction: (1) Steel, (2) Concrete and (3) Timber. These materials not only influence the function within the structure, but also affect the operation cost and energy usage. Operation cost reduction and energy savings are typically elements of the sustainable construction sphere. However, in developing countries, there is a variety of highly critical factors, which can impact material selection as well as the long-term sustainability of the structure, including: Fire Performance, Environmental Impact, Structural Performance (strength and durability), and Functioning Capabilities. Accordingly, this paper will first compare the sustainability of these three key materials and then converse with appropriate processes for material selection. Attention will be given to the sustainable construction recompense associated with the different material selection factors. Doing so ensures a more sustainable built environment by means of an improved material selection process.

Research on Material Selection with Multi-Attribute Decision Method and G1 Method

2014 ◽  
Vol 952 ◽  
pp. 20-24 ◽  
Author(s):  
Xue Jun Xie
Keyword(s):  
Material Selection ◽  
Selection Process ◽  
Selection Problem ◽  
Topsis Method ◽  
Attribute Weight ◽  
Multi Attribute Decision Making ◽  
Judgment Matrix ◽  
Optimal Material ◽  
Selection Of ◽  
Better Than

The selection of an optimal material is an important aspect of design for mechanical, electrical, thermal, chemical or other application. Many factors (attributes) need to be considered in material selection process, and thus material selection problem is a multi-attribute decision making (MADM) problem. This paper proposes a new MADM method for material selection problem. G1 method does not need to test consistency of the judgment matrix. Thus it is better than AHP. In this paper, firstly, we use the G1 method to determine the attribute weight. Then TOPSIS method is used to calculate the closeness of the candidate materials with respect positive solution. A practical material selection case is used to demonstrate the effectiveness and feasibility of the proposed method.

Research on Tubing and Casing Corrosion in Sour Gas Reservoirs and Corrosion-Resistant Material Selection

2013 ◽  
Vol 690-693 ◽  
pp. 1516-1519
Author(s):  
Ling Feng Li
Keyword(s):  
Material Selection ◽  
Gas Production ◽  
Resistant Material ◽  
Gas Reservoirs ◽  
Gas Well ◽  
Corrosion Resistant ◽  
System Life ◽  
Sour Gas ◽  
Selection Of

For natural gas well in sour gas reservoirs, very serious corrosion in the gas well string is an important factor of gas production system life. In order to ensure the long-term development of gas wells, this paper mainly introduces the tubing and casing corrosion in sour gas reservoirs, corrosion-resistant material selection of tubing and casing in sour gas reservoirs and proposes the optimization idea and technique of tubing material selection.. By taking W 63 well as an example, this paper optimizes the material selection of production casing for W 63 well. For application, the optimal materials of gas well string in W 63 well have good performance of corrosion resistance.

A Tentative Research on Site Selection of Shanxi Buddhism Temple Architecture

2012 ◽  
Vol 238 ◽  
pp. 551-554
Author(s):  
Yuan Xin Li ◽  
Xiang Dong Zhu ◽  
Chong En Wang
Keyword(s):  
Site Selection ◽  
Space And Time ◽  
Chinese Architecture ◽  
Geographical Environment ◽  
General Rules ◽  
Selection Factors ◽  
Selection Of

Buddhist architecture which was introduced to China from India had become an important component of traditional Chinese architecture, and the characteristics of different regions had formed after the long-term development. This article starts from Shanxi’s location environment, analyzes the considerations of geographical environment of Shanxi temple construction’s site selection and the historical regularity of their distributioncombining with the site selection factors of traditional Chinese architecture. Thus, the general rules of site selection of Shanxi temples and its particularity of distribution are revealed preliminarily from the viewpoint of space and time.

NUMO’s Open Solicitation of Volunteer Municipalities for a Potential Disposal Site

2003 ◽  
Author(s):  
Kazumi Kitayama
Keyword(s):  
Radioactive Waste ◽  
Preliminary Investigation ◽  
Disposal Site ◽  
Nuclear Waste Management ◽  
The Public ◽  
Construction Operation ◽  
High Level ◽  
Year 2000 ◽  
Selection Of

In the year 2000, the Japanese geological disposal program for high-level radioactive waste (HLW) moved from the phase of generic research and development into the phase of implementation. Following legislation entitled the “Specified Radioactive Waste Final Disposal Act” (hereafter “the Act”), the Nuclear Waste Management Organization of Japan (NUMO) was established as the implementing organization in October 2000. The assigned activities of NUMO include repository site selection, developing relevant license applications and construction, operation and closure of the repository. To initiate the first stage, NUMO has chosen an “open solicitation” approach for finding candidate sites in the belief that the support of local communities is essential to the success of this highly public, long-term project extending over more than a century. Based on this concept, NUMO announced the start of open solication for volunteer municipalities for selection of Preliminary Investigation Areas to the public on December 19, 2002. This paper describes NUMO’s open solicitation of volunteer municipalities for a potential disposal site.

scholarly journals Effect of single tube sections on the structural safety of Chinese solar greenhouse skeletons

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xingan Liu ◽  
Zhenkun Li ◽  
Lei Zhang ◽  
Yu Liu ◽  
Yiming Li ◽  
...  
Keyword(s):  
Material Selection ◽  
Selection Process ◽  
Load Condition ◽  
Structural Features ◽  
Structural Safety ◽  
Element Analysis ◽  
Cross Sectional ◽  
Single Tube ◽  
The Impact ◽  
Selection Of

AbstractIn recent years, the use of single-tube skeletons for the construction of Chinese solar greenhouses has increased. As a consequence, during the selection of the construction materials, the safety of these structures has become an important issue. The single tube section has various forms, but there is no scientific theory to guide the selection process. To the best of our knowledge, the scientific analysis of the impact of single pipe cross section on the safety of greenhouse skeleton has not been addressed so far. In this context, the finite element analysis software was used to calculate and analyze the stress elements, displacement of round tube, Ω tube, elliptic tube and square tube under the same load conditions. We used the Chinese Standard values as a reference and analyzed structural features of different sizes and thicknesses of the greenhouse steel skeleton sections under non-uniform snow load. The results showed that, under the same load condition, the maximum stress in the four skeleton materials was all located at the connection of the transverse tension bar and the front roof. In addition, under same load condition, the greenhouse skeleton with elliptic tube presented the smallest cross-sectional displacement between the different materials tested. The effect of increasing the size of the greenhouse frame was better than that of increasing the greenhouse material thickness. All this work will provide theoretical guidance to the material selection of this structure.

Components for Composite Material Customization System

2009 ◽  
Author(s):  
Soumitra Nandi ◽  
Zahed Siddique
Keyword(s):  
Composite Materials ◽  
Material Selection ◽  
Selection Process ◽  
Material Design ◽  
Optimization Techniques ◽  
Conventional Approach ◽  
Wide Range ◽  
Properties Of Materials ◽  
Selection Of

With the advancements of composite materials and research in nano-composites, designers have the flexibility to select materials from a wide range of properties to meet their specific design needs. Even with all these advancements, the material selection process during design follows a very conventional approach. The conventional approach to material design is to select a certain material from a given pre-set material list that allows the attainment of nearest properties required for the product. One of the disadvantages of this approach is that the trade-off inherent in the selection of material, when multiple properties are targeted, can be cumbersome to achieve or addressed at all. In this paper we present an approach to select and design composite materials, where the designer will have flexibility to select multiple properties of materials during the design of a new product. This approach employs an index for selection combined with heuristic optimization techniques to select the optimized combination of composite materials that could meet closest possible property goals. In the case study presented in this paper, we did not perform any optimization; rather, emphasize is given to the explanation of material selection technique, and an RMS value is introduced as an index for the selection.

scholarly journals Public Acceptance as a Driver for Repository Design

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Ian G. McKinley ◽  
Sumio Masuda ◽  
Susie M. L. Hardie ◽  
Hiroyuki Umeki ◽  
Morimasa Naito ◽  
...  
Keyword(s):  
Local Communities ◽  
Concept Development ◽  
Public Acceptance ◽  
Geological Disposal ◽  
The Public ◽  
Safety Case ◽  
Construction Operation ◽  
Traditional Manner ◽  
Selection Of

The Japanese geological disposal programme for radioactive waste is based on a volunteering approach to siting, which places particular emphasis on the need for public acceptance. This, as established in law, emphasises the development of a repository project as a partnership with local communities and involves stakeholders in important decisions associated with key milestones in the selection of repository sites and subsequent construction, operation, and closure. To date, however, repository concept development has proceeded in a more traditional manner, focusing particularly on ease of developing a post-closure safety case. In the current project, we have attempted to go further by assessing what requirements stakeholders would place on a repository and assessing how these could be used to rethink repository designs so that they meet the desires of the public without compromising critical operational or long-term safety.

scholarly journals Determination of the importance of evaluation criteria during the process of recruitment and selection of personnel based on the application of the SWARA method

Ekonomika ◽  
2021 ◽  
Vol 67 (4) ◽  
pp. 1-9
Author(s):  
Milica Popović ◽  
Gabrijela Popović ◽  
Darjan Karabašević
Keyword(s):  
Personnel Selection ◽  
Selection Process ◽  
Evaluation Criteria ◽  
Domain Experts ◽  
Recruitment And Selection ◽  
Weighting Coefficients ◽  
Final Selection ◽  
Selection Of

Personnel selection for an organization is an extremely important process. Modern organizations strive to improve the process of recruitment and selection of personnel as much as possible, in order to provide the organization with quality personnel and thus long-term competitiveness. In addition, the evaluation criteria on which the recruitment and selection process is based is also important, as it has a large impact on the final selection of candidates. Therefore, the aim of this paper is to propose the application of multi-criteria decision-making methods for the process of determining the weighting coefficients of evaluation criteria. Accordingly, the SWARA (Step-Wise Weight Assessment Ratio Analysis) method for determining weights was applied in the paper. The SWARA method proved to be extremely reliable when it comes to defining the weights of evaluation criteria, primarily due to its simplicity and the fact that respondents and domain experts could easily express their views on the issue.

scholarly journals Prinsip pustakawan dalam seleksi bahan pustaka di Perpustakaan Sekolah Menengah Kejuruan 1 Pacitan

2018 ◽  
Vol 6 (1) ◽  
pp. 29
Author(s):  
Ardhina Pratiwi Pratiwi
Keyword(s):  
Material Selection ◽  
Selection Process ◽  
Sampling Technique ◽  
Structured Interview ◽  
Library Material ◽  
Study Results ◽  
Selection Principles ◽  
Data Collection Technique ◽  
Selection Of

Selection of library materials is an important activity which aims to determine the selection of library materials based on characteristics and needs of users. Library selection activities are conducted by professional librarians who have the ability to develop collections. Due to the importance of library materials selection activities, the researcher conducted a study at the Sekolah Menengah Kejuruan 1 Pacitan Library. This study aimed to describe the principles of the librarian in the library material selection process at the library of Sekolah Menengah Kejuruan 1 Pacitan. The study used the descriptive qualitative method, with sampling using the purposive sampling technique to the librarian and non-librarian at the Sekolah Menengah Kejuruan 1 Pacitan Library. The data collection technique in this study used the semi-structured interview instruments. The researcher used the scope of library material selection principles consisting of the traditionalist, liberal and pluralistic view. According to the liberal view; the study results showed that librarians were not able to market the library through the approach to students. To the traditionalist view, the main principle in meeting the needs of students was based on the quality of library materials. While the pluralistic view suggested that most students were not satisfied with the literature available at the Sekolah Menengah Kejuruan 1 Pacitan Library. Based on that, the Sekolah Menengah Kejuruan 1 Pacitan Library has applied the traditionalist principles which can be seen from the quality of library materials that will be accessible to the students.

The Application in the Movement Materials Based on the Grey Fuzzy Theory

2013 ◽  
Vol 340 ◽  
pp. 396-400
Author(s):  
Bin Gao ◽  
Huan Nan Cao ◽  
Hui Tao Jiang
Keyword(s):  
Comprehensive Evaluation ◽  
Material Selection ◽  
Selection Process ◽  
Fuzzy Theory ◽  
Evaluation Index ◽  
Basketball Player ◽  
Complex Evaluation ◽  
Physical Form ◽  
Select Material ◽  
Selection Of

In the sports athletes in the material, often to from a series of comprehensive evaluation index of a player, material selection process involves many factors and check each other, this kind of complex evaluation, often are fuzzy, the fuzzy mathematical for this class of problems and provide a good solution. Based on the basketball athletes' physical form primary select material as an example, the grey fuzzy theory in sports material selection of application. The experimental results show that this study proposed grey fuzzy theory for basketball player of the selected method is feasible and effective.

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