scholarly journals Assessment of real aging in selection process of replacement materials for stone monuments conservation.

2011 ◽  
Vol 2 (3) ◽  
pp. 27 ◽  
Author(s):  
Nicolas Concha Lozano ◽  
Dominique Lafon ◽  
Olivier Eterradossi ◽  
Pierre Gaudon
Keyword(s):  
Image Processing ◽  
Camera Calibration ◽  
Selection Process ◽  
Chromatic Adaptation ◽  
Stone Monuments ◽  
Graphical Tool ◽  
Aging Properties ◽  
Digital Still Camera ◽  
Selection Of

<p>Reconstruction of monuments often raises the question of stones replacement. It must be aesthetically durable, which means the stone must age like the original one. This study presents an image processing chain, from capture to visualisation, to compare stones at different states of aging: recently extracted from quarry, weathered on old buildings, and cleaned on monuments recently restored. This tool includes: (1) a digital still camera calibration, (2) a chromatic adaptation transform and (3) a resizing process. To test it, a case study was conducted to assess the compatibility of three types of limestone. This graphical tool helps the selection of replacement materials by visual comparison between several possible stones in order to select them by aging properties and visual resemblance.</p>

scholarly journals Processo seletivo de tutores da UAB da UFAL: aspectos para uma seleção criteriosa e significativa

2015 ◽  
Vol 14 (3) ◽  
pp. 545-560
Author(s):  
Rosana Sarita de Araujo
Keyword(s):  
Selection Process ◽  
Legal Aspects ◽  
Legal Basis ◽  
Case Study Methodology ◽  
Proof Of Knowledge ◽  
Palabras Clave ◽  
Study Methodology ◽  
Investigación Cualitativa ◽  
Selection Of

Resumo: O trabalho discute o processo seletivo de tutores da UAB da UFAL, considerando os aspectos legais, bem como os aspectos técnico-pedagógicos que traduzem a seleção como criteriosa e significativa. Caracterizada como pesquisa qualitativa utiliza a metodologia de estudo de caso e de comparação para estudo de dois editais da UFAL de processos seletivos de tutores. A análise dos dados aponta as limitações que a legislação delineia para a seleção de tutores, as diferenças nos índices de aprovação dos candidatos em relação às etapas utilizadas no processo de seleção, os impactos da prova de conhecimento versus entrevista, bem como demonstra a crescente credibilidade do processo de seleção de tutores da UFAL.   Palavras-chave: Seleção de tutores. Base legal. Aspectos pedagógicos Abstract: The work discusses the selection process of the UAB tutors from UFAL, considering the legal aspects, as well as pedagogical and technical aspects that reflect the selection as judicious and significant. Characterized as qualitative research it uses the case study methodology and comparison for the study of two UFAL public notices for the selective processes of tutors. Data analysis points out the limitations that legislation delineates for the selection of tutors, differences in approval rates of candidates regarding the steps used in the selection process, the impacts of proof of knowledge versus interview, and it also demonstrates the growing credibility of the UFAL tutors selection process. Keywords: Selection of tutors. Legal basis. Pedagogical aspects Resumen: En este trabajo se discute el proceso de selección de los tutores de la UAB UFAL, considerando los aspectos legales , así como los aspectos técnicos y pedagógicos que traducen la selección minunciosa y significativa. Caracterizado como investigación cualitativa utiliza la metodología de estudio de caso y comparación con el estudio de dos convocatorias de la UFAL de procesos de selección de tutores. La análisis de los datos muestran las limitaciones que la legislación esboza para seleccionar los tutores, las diferencias en los índices de aprobación de los candidato en relación a las fases utilizadas en el proceso de selección , el impacto de la prueba de conocimientos frente a la entrevista , y demuestra la credibilidad creciente del proceso de selección de tutores de la UFAL . Palabras clave: Selección de tutores. Base legal. Aspectos pedagógicos 

Multi-Criteria Selection of Wind Turbine Using TOPSIS Approach

2020 ◽  
Author(s):  
Shafiqur Rehman ◽  
Salman A. Khan ◽  
Luai M. Alhems
Keyword(s):  
Wind Turbine ◽  
Wind Farm ◽  
Selection Process ◽  
Geographical Location ◽  
Real Data ◽  
Maximum Energy ◽  
Decision Criteria ◽  
Topsis Approach ◽  
Selection Of

Abstract The recent revolution in the use of renewable energy worldwide has opened many dimensions of research and development for sustainable energy. In this context, the use of wind energy has received notable attention. One critical decision in the development of a wind farm is the selection of the most appropriate turbine compatible with the characteristics of the geographical location under consideration in order to harness maximum energy. This selection process considers multiple decision criteria which are often in conflict with each other, as improving one criterion negatively affects one or more other criteria. Therefore, it is desired to find a tradeoff solution where all selection criteria are simultaneously optimized to the best possible level. This paper proposes a TOPSIS (The Technique for Order of Preference by Similarity to Ideal Solution) based approach for multi-criteria selection of wind turbine. Three decision criteria, namely, hub height, wind speed, and net capacity factor are used in the decision process. A case study is shown on real data collected from the Aljouf region located at an altitude of 753 meters above sea level in the northern part of Saudi Arabia. Seventeen turbines with rated capacities ranging from 1.5 GW to 3 GW from various manufacturers are evaluated. Results indicate that Vestas V110 turned out to be the most appropriate turbine for the underlying site.

Investigating Barriers That May Influence the Implementation and Use of E-HRM Tools in the Organization

2021 ◽  
pp. 350-370
Author(s):  
Hamid Agahi ◽  
Sarist Gulthawatvichai
Keyword(s):  
Human Resource ◽  
Selection Process ◽  
Business Sector ◽  
Human Resource Managers ◽  
Structured Interviews ◽  
Resource Managers ◽  
Recruitment And Selection ◽  
Study Participants ◽  
Selection Of

Human resource managers (HRMs) can use electronic-human resource management (E-HRMs) tools to improve human resources practices, including recruitment and selection of employees. Grounded in the theoretical framework of a unified theory of acceptance (UTAUT), this present qualitative case study investigated the potential barriers that influence the implementation and use of E-HRMs in Thailand's business sector. Human resource professionals from the business sector, including hotels in Thailand, were the study participants. Semi-structured interviews with open-ended questions were used as data collection instruments. Qualitative data collected was analyzed using thematic content analysis. The challenges impact the recruitment and selection process by making the employment process complex and poor selection of employees. HRMs should support E-HRMs as the advanced technologies to improve recruitment and selection of competent employees. In conclusion, E-HRMs are effective information systems that support electronic recruitment and selection of qualified employees.

Airstrip Site Selection in Coastal Labrador

1981 ◽  
Vol 35 (1) ◽  
pp. 17-25
Author(s):  
J. D. Innes ◽  
E. H. Smith ◽  
Allan Fiander
Keyword(s):  
Site Selection ◽  
Coastal Area ◽  
State Of The Art ◽  
Selection Process ◽  
Geometric Design ◽  
Digital Mapping ◽  
Data Requirements ◽  
Selection Of ◽  
Design Techniques

This paper examines a case study of the selection of nine airstrip sites in the coastal area of Labrador. The procedure used involved the procurement of better mapping for the site selection process. The benefits of this process are examined in the context of the data requirements for good airstrip selection. The site selection process is then examined utilizing state of the art digital mapping and computerized geometric design techniques.

Selection of Leak Detection Systems by Aggregation of Experts’ Judgment

2014 ◽  
Author(s):  
Sirous Yasseri
Keyword(s):  
Decision Maker ◽  
Selection Process ◽  
Leak Detection ◽  
Fuzzy Topsis ◽  
Detection Systems ◽  
Good Compromise ◽  
Criteria For Selection ◽  
Selection Of

Numerous leak detection systems (LDS) using a variety of technologies are on the market. Since LDS are designed for a particular use, then the evaluation and selection process requires suitable metrics and involvement from all stakeholders. This paper proposes to use15 criteria for selection of LDS. Each criterion is first rated for their importance by a number of experts. Then, the same experts are asked to rate a list of candidate LDSs. Fuzzy TOPSIS is used to aggregate Experts’ judgment. A case study is presented to demonstrate the application of the method. This method would indicate how a good compromise might look like. This could aid the decision-maker to weigh options and set priority and decide on a system.

scholarly journals Transition to a Competitive Consultant Selection Method: A Case Study of a Public Agency in Israel

10.28945/4891 ◽  
2021 ◽  
Vol 16 ◽  
pp. 491-503
Author(s):  
Amichai Mitelman ◽  
Yahel Giat
Keyword(s):  
Data Storage ◽  
Selection Process ◽  
Selection Method ◽  
Competitive Bidding ◽  
Future Research ◽  
Sources Of Information ◽  
Qualitative Comparison ◽  
Competitive Selection ◽  
Selection Of

Aim/Purpose: This paper reports a case study of organizational transition from a non-competitive selection method to a novel bidding method for the selection of consultants in the Architectural and Engineering (A/E) industry. Background: Public procurement agencies are increasingly relying on external consultants for the design of construction projects. Consultant selection can be based on either competitive bidding, or quality-based criteria, or some combination between these two approaches. Methodology: Different sources of information were reviewed: internal documents, and quantitative data from the enterprise software platform (ERP). In addition, informal and unstructured interviews were conducted with relevant officials. Contribution: As there are mixed opinions in the scientific literature regarding the use of competitive bidding for the selection of consultants in the A/E industry, this paper contributes a detailed review of a transition to a competitive selection method and provides a financial and qualitative comparison between the two methods. In addition, the method implemented is novel, as it delegates most of the responsibility of hiring and managing consultants to one main contractor. Findings: While the new selection method was intended to reduce bureaucratic overload, it has unexpectedly also succeeded to reduce costs as well. Recommendations for Practitioners: It may be more efficient and profitable to adopt the selection method described in this study. Recommendation for Researchers: Similar methods can be applied to other industries successfully. Impact on Society: Our method was applied in a public organization and resulted in a better outcome, both financial and managerial. Adopting this approach can benefit public budgets. Future Research: The selection, data storage, and analysis methods are interrelated components. Future analysis of these components can help better shape the consultant selection process.

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 Optimization of Building Components with Sustainability Aspects in BIM Environment

2018 ◽  
Author(s):  
Mostafa Khanzadi ◽  
Ali Kaveh ◽  
Mohammad Rastegar Moghaddam ◽  
Seyyed Mohammad Pourbagheri
Keyword(s):  
Sustainable Development ◽  
Energy Saving ◽  
Building Materials ◽  
Selection Process ◽  
Optimal Combination ◽  
Wide Range ◽  
Procurement Cost ◽  
Building Components ◽  
Selection Of

In recent decades, the variety of building materials has grown a great deal causing the selection of suitable materials from a wide range of candidates to be complex and difficult. One of the main criteria to be considered in this area, besides reducing procurement cost, is paying attention to various aspects affecting the dimensions of sustainable development, such as increasing energy saving, applying recyclable materials and localization.This paper proposes a framework in the BIM environment - as one of the successful approaches in the AEC industry - which allows the project stakeholders to choose the most desired and optimal combination for their building components with least human interference in the selection process makes systematic choices. In order to achieve the purposes embedded in the framework phases, several methods such as ENSCBO, DEA and VIKOR have been utilized in order to evaluate and depict the selection process, this is implemented as a Revit plugin and eventually applied to a case study.

scholarly journals A Case Study Analysis on the Impact of a Hybrid Application of the Best Value Approach

2019 ◽  
Vol 11 (1) ◽  
pp. 52-61
Author(s):  
Lars Claassen ◽  
Arjan Roodhorst ◽  
Isaac Kashiwagi
Keyword(s):  
Decision Making ◽  
Performance Metrics ◽  
Selection Process ◽  
Case Study Research ◽  
Case Study Analysis ◽  
Best Value ◽  
Research Findings ◽  
The Impact ◽  
Selection Of

The Best Value Approach (BVA) has been used as a method to procure and manage services. As the BVA is further proliferated, there are applications of the BVA which deviate from the standard approach which are labeled as hybrid processes. This research focuses on better understanding BVA hybrid projects and the implications that may arise with such deviations. Using case study research, the BVA was used to procure services for the construction of ships. The research findings show the impact of hybrid applications of the BVA including (1) the selection of suppliers based on decision making instead of expertise (2) attempts to share and transfer risk, (3) incomplete clarification phase planning by expert suppliers, and (4) incomplete use of the Weekly Risk Report and Director’s report to track project deviation. The resulting hybrid application was found to have increased costs, increased decision making, and created a non-transparent environment. Suggestions have been made to improve upon these areas by applying the BVA structure including a selection process to identify expertise and a project management process which utilizes the supplier’s expertise to create a structure of transparency through performance metrics.

scholarly journals Application of selected methods of multicriterial assessment in the selection process of equipment used at the extraction face – case study

2019 ◽  
Vol 2 (1) ◽  
pp. 31-37
Author(s):  
Zygmunt Korban
Keyword(s):  
Selection Process ◽  
Multidimensional Space ◽  
Mathematical Methods ◽  
Optimal Variant ◽  
Promethee Ii ◽  
Net Flows ◽  
Decision Support Method ◽  
Multicriteria Decision Support ◽  
Selection Of

Abstract Making decisions is a process that involves taking into account n acceptable variants of undertaken actions in view of m adopted assessment criteria and selecting the optimal variant (optimal variants). Due to the number of alternatives being assessed and the number of considered criteria, more and more frequently mathematical methods are used in this process. Basing on the example involving the selection of a mechanized longwall complex, the article presents the application of selected multicriteria methods: in the case of quantitative features – Hellwig's development measure method, and in the case of qualitative features – Promethee II method. In the case of Hellwig's development measure method, equipment variants were interpreted as points w in the multidimensional space, and then the distances between them and the point Po (perfect solution) were determined. In the case of the Promethee II method (discrete multicriteria decision support method), the equipment variants were compared with each other in pairs, which made it possible to determine the so-called net flows Φ(i). The obtained synthetic values mi and Φ(i) allowed to build rankings of equipment variants (objects) and to indicate the optimal variant.

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