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Wyświetlanie 1-5 z 5
Tytuł:
The combination of Taguchi – Entropy – WASPAS – PIV methods for multi-criteria decision making when external cylindrical grinding of 65G steel
Autorzy:
Trung, Do Duc
Powiązania:
https://bibliotekanauki.pl/articles/2052199.pdf
Data publikacji:
2021
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
external cylindrical grinding
MCDM
WASPAS
PIV
decision making
Opis:
This paper presents a study on the multi-creteria decision making in the external cylindrical grinding process of 65G steel. An aluminum oxide grinding wheel was used in the experimental process. The experimental matrix was designed according to the Taguchi method with twenty-seven experiments. Five parameters were used to design the experimental matrix including workpiece velocity, feed rate, depth of cut, dressing feed rate, and dressing depth of cut. The surface roughness and Material Removal Rate (MRR) were determined for each experiment. This is the first time that the Weighted Aggregates Sum Product ASsessment (WASPAS) and Proximity Indexed Value (PIV) methods were used to make the multi-criteria decision for grinding process. The weighs of ouput criteria (surface roughness and MRR) were determined by Entropy method. Both WASPAS and PIV methods determined an experiment that simultaneously ensured the “minimum value” of surface roughness and “maximum value” of MRR.
Źródło:
Journal of Machine Engineering; 2021, 21, 4; 90-105
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation and Ranking the Resilient Suppliers with the Combination of Decision Making Techniques
Autorzy:
Ajalli, Mehdi
Saberifard, Nima
Zinati, Babak
Powiązania:
https://bibliotekanauki.pl/articles/2023981.pdf
Data publikacji:
2021-09
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
key dimension
resilience
supplier
SWARA technique
WASPAS method
ranking
Opis:
Supply chain management emerged as the ultimate management strategy to ensure the competitive advantages of companies in their markets. Suppliers are considered as inevitable sources of external risks in modern supply chains. In this respect, resonance is essential for the ability to adapt in resonance to disturbances and to restore in choosing suppliers. As suppliers of critical resources are vulnerable, choosing better suppliers to create resilience, and thereby reducing the risks in the supply chain as a whole. In recent years, emphasis has been placed on supply chain resilience and resilient suppliers, but few studies have been conducted on the evaluation and selection of resilient suppliers with multi-criteria decision making models. The main purposes of this study are a broad review of the literature on the resilient factor, factorization, efficiency of key factors in the reliance of suppliers and the ranking of resilient suppliers using the combined approach of SWARA and WASPAS. For this purpose, after a comprehensive review of Literature interview with the experts of petrochemical upstream industry, six key factors and overall resilience of suppliers were identified in eighteen factors. Then the weight of the dimensions was determined by using the SWARA method. The output of the method showed that supplier accountability and key performance factors were the most important factors in assessing the resilience of suppliers. Using the supporting method, five resilient suppliers were evaluated based on six dimensions and the final ranking of suppliers was determined. With this ranking, the industry will be a major step towards improving supply chain and increasing suppliers’ resilience to address disruptions and risks, improve supply and achieve competitive advantage and satisfy the consumers’ needs.
Źródło:
Management and Production Engineering Review; 2021, 13, 3; 129-140
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Compiling the strategies of alfa mining company andprioritizing them by waspas method
Opracowywanie i priorytetyzacja strategii przedsiębiorstwa alpha mining company przy zastosowaniu metody waspas
Autorzy:
Mirzaee, Seyed Moslem Seyed
Mirfakhredini, Seyed Heydar
Sadrabadi, Alireza Nasser
Powiązania:
https://bibliotekanauki.pl/articles/361718.pdf
Data publikacji:
2020
Wydawca:
Wyższa Szkoła Logistyki
Tematy:
SWOT Matrix
Strategic Planning
WASPAS
ACCEPT
macierz SWOT
planowanie strategiczne
Opis:
Background: Nowadays mining companies, as non-profit organizations like other organizations, face a complex and turbulent environment. The proper guidance of the organizations depends on understanding the internal and external environment and making smart strategic decisions. Therefore, to deal effectively with all the factors that affect the ability of the company in its profitable growth, because organizations need compiling strategic planning to increase their capabilities, long-term growth and survival and to reduce operational risk, organizations have turned to strategic planning in particular. After compiling strategies, determining the priority of strategies is very important. The statistical population of this research has consisted of 50 heads of operational and support affairs units (to determine internal factors) along with 10 managers and deputies (to determine external factors). In this research, strategies were first identified via the Strengths, Weaknesses, Opportunities, and Threats (SWOT) matrix and then ranked by the Weighted Aggregates Sum Product Assessment (WASPAS) method. Materials and methods: In addition to the QSPM approach, multi-indicator decision-making models can also be used to prioritize strategies. Nowadays, as multi-indicator decision-making related topics are intensified and on the other hand, the increasing tendency towards interdisciplinary sciences and the use of theories of various groups and specialties in solving complex problems, the necessity to pay attention to decision-making analysis techniques and exploiting them in solving existing complex problems is of great importance. In these models, selecting one option among the available options is considered. In a general definition, multi-indicator decision making refers to specific (preferential type) decisions, such as evaluating, prioritizing, or selecting among the available options (which sometimes should be done among several contrasting indicators). Some multi-indicator decision-making models are: AHP, ANP, ELECTRE, VICTOR, TOPSIS, SAW, GRA, SIR, PROMETHEE and WASPAS. In this article, the WASPAS method has been used to determine the prioritization of strategies. Results: In this research, strategies were first identified via the Strengths, Weaknesses, Opportunities, and Threats (SWOT) matrix and then ranked by the Weighted Aggregates Sum Product Assessment (WASPAS) method. Ultimately, the strategies of "assigning a part of the sale to individuals or qualified private companies", "creating the Technology Transfer Office (TTO) in order to move towards self-sufficiency", and "comprehensive planning in the field of human resources in order to create an effective and efficient culture" were selected as strategic priorities for the Alpha Mining Company. Conclusions: Various approaches have already been proposed to prioritize strategies; in this research, the criteria have been specified using the ACCEPT approach and finally by the WASPAS method, the strategies have been prioritized. The ACCEPT method unlike the QSPM method, which prioritized strategies by taking into account strengths and weaknesses, opportunities and threats, regardless of environmental conditions and existing organizational status and externally by considering 6 main parameters of strategy evaluation including cost, time, popularity, effective, and so on, helps to prioritize strategies. In this research, it was tried to use one of the techniques of MADM according to relevant and important criteria to enhance the assurance coefficient of managers’ decision making. Multi-criteria decision-making techniques have this advantage that they evaluate various options according to various criteria that do not have equal units. Another important advantage of multi-criteria decision-making techniques is that they are capable of analyzing quantitative and qualitative criteria simultaneously.
Wstęp: W obecnych czasach przedsiębiorstwa wydobywcze, jako organizacje non-profit, podobnie jak inne organizacje, działają w kompleksowych i zmieniającym się środowisku. Prawidłowe zarządzanie organizacją zależy od zrozumienia wewnętrznego jak i zewnętrznego środowiska oraz podejmowania strategicznych decyzji. Aby działać efektywnie, mając do czynienia z wieloma czynnikami wpływającymi na możliwości i ograniczenia wzrostu przedsiębiorstwa, organizacja potrzebuje strategicznego planowania dla rozwoju swoich zdolności, długoterminowego wzrostu jak i ograniczeniu ryzyka operacyjnego. Po etapie opracowania strategii, istotnym krokiem jest ich priorytetyzacja. Statystyczna populacja w tej pracy obejmuje 50 kierowników operacyjnych i wspierających (dla określenia czynników wewnętrznych) oraz 10 menadżerów (dla określenie czynników zewnętrznych). Strategie zostały wpierw poddane analizie SWOT (Strengths, Weaknesses, Opportunities, Threats) a następnie uszeregowane zgodnie z metodą WASPAS (Weighted Aggregates Sum Product Assessment). Materiały i metody: Dodatkowo do podejścia QSPM, modele wieloczynnikowe podejmowania decyzji również mogą być zastosowane w procesie priorytetyzacji strategii. Obecnie wieloczynnikowe podejmowanie decyzji jest bardzo zintensyfikowane, z drugiej strony obserwowana jest tendencja nauk interdyscyplinarnych zastosowania teorii różnych obszarów w rozwiązywaniu kompleksowych problemów, konieczności zwrócenia uwagi na techniki analiz podejmowania decyzji oraz wykorzystywania ich w istniejących złożonych problemach. W tych modelach umożliwione jest wybranie jednej opcji wśród istniejących wielu możliwości. Wieloczynnikowe podejmowanie decyzji odnosi się do specyficznych (preferowanych) decyzji, takich jak szacowanie, priorytetyzacja lub wybór jednej wśród wielu opcji (co czasem musi być dokonane przy wielu przeciwnych czynnikach). Takimi wieloczynnikowymi modelami podejmowania decyzji są: AHP, ANP, ELECTRE, VICTOR, TOPSIS, SAW, GRA, SIR, PROMETHEE oraz WASPAS. W prezentowanej pracy zastosowano metodę WASPA dla określenia priorytetyzacji strategii. Wyniki: Strategie wpierw zostały zidentyfikowane poprzez zastosowanie macierzy SWOT (Strengths, Weaknesses, Opportunities, Threats) a następnie uszeregowane przy zastosowaniu metody WASPAS (Weighted Aggregates Sum Product Assessment). W końcowym etapie strategie „przypisanie części sprzedaży do indywidualnych osób lub wykwalifikowanych prywatnych firm”, „stworzenie TTO (Technology Transfer Office) w celu przesunięciu w stronę samowystarczalności” oraz „wszechstronne planowanie w obszarze zasobów ludzkich w celu wytworzenia efektywnych i wydajnej kultury” zostały wybrane jako strategiczne priorytety dla firmy Alpha Mining Company. Wnioski: Różne metody były proponowane do użycia w celu priorytetyzacji strategii. W tej pracy kryteria zostały wybrane poprzez podejście ACCEPT oraz finalnie poprzez metodę WASPAS. Metoda ACCEPT pomaga w priorytetyzacji strategii w przeciwieństwie do metody QSPM, która priorytetyzuje strategie uwzględniając ich słabe i mocne strony, możliwości i zagrożenie w oderwaniu od warunków środowiskowych i aktualnego stanu organizacji, a uwzględniając 6 głównych parametrów oszacowywania strategii, takich jak koszt, czas, popularność, efektywność, itp. W pracy spróbowano użyć jednej z metod MADM w odniesieniu do istotnych kryteriów w celu zapewnienia współzależności podejmowanych decyzji przez zarządzających. Wieloczynnikowe techniki podejmowania decyzji mają tą przewagę, że umożliwiają ocenę różnych opcji w zależności od różnych kryteriów, które nie mają wspólnej jednostki przeliczeniowej. Inną zaleta wieloczynnikowych technik podejmowania decyzji jest możliwość jednoczesnej analizy czynników jakościowych i ilościowych.
Źródło:
LogForum; 2020, 16, 3; 447-463
1734-459X
Pojawia się w:
LogForum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using MCDM Methods to Assess the Extent to which the European Union Countries Use Renewable Energy
Autorzy:
Tutak, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/2064702.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
European Union
renewable energy
RES
sustainable development
WASPAS method
MCDM method
Opis:
Energy security is one of the basic tasks carried out by individual countries. It is of great socio-economic and political importance and constitutes the basis for independent development of both economies and groups of countries. Access to adequate resources of affordable and environmentally neutral energy in the production process is the basis for sustainable energy development. Therefore, an important element of sustainable energy is its environmental neutrality. Currently, this condition is fulfilled to the greatest extent by energy produced from renewable energy sources (RES). Renewable energy development is taking place all over the world, but the European Union (EU) is a definite leader. In its energy policy, the importance and role of RES in the energy production structure has been growing systematically for many years. Introduced regulations and energy strategies caused member states to take extensive actions to achieve the set targets for RES. However, the large diversity of the EU countries makes this process occur with different intensity. Thus, it was justified to conduct research to assess the level of renewable energy use in the EU countries in a 15-year perspective (2004-2019). The research was based on a set of 4 indicators characterizing the use of renewable energy in the EU countries by means of the WASPAS method (from the group of MCDM methods). The results showed that a high level of RES use in the whole studied period was found in Sweden, Austria, Latvia and Finland, and a low level, for 2004, was found in Cyprus, Luxembourg and Malta, and for 2019 – in Luxembourg and Malta.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 190--199
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of sustainable supplier problem: a hybrid decision making model based on SWARA-WASPAS
Autorzy:
Erdogan, Hande
Tosun, Nedret
Powiązania:
https://bibliotekanauki.pl/articles/2021463.pdf
Data publikacji:
2021
Wydawca:
Wyższa Szkoła Logistyki
Tematy:
sustainable supplier selection
multi-criteria decision-making
SWARA
WASPAS
zrównoważony wybór dostawców
wielokryterialne podejmowanie decyzji
Opis:
Background: The fierce competitive advantage in the global market depends largely on the integration of all supply chain networks. This network facilitates the movement of information and materials through the suppliers and end customers with a focus on planning and managing. This integration can result in the meeting demands of customer orders being affected by the performance of the suppliers. As a result of this integration, it can be considered that the performance of the suppliers is important in fulfilling customer orders on time. Evaluating and selecting suppliers is greatly influencing the performance of the supply network. Methods: Selecting the proper supplier is a multi-criteria decision-making problem which includes both quantitative and qualitative criteria. A two-stage decision making method is proposed in the study under sustainability dimension. First, SWARA method is used to determine the relative importance of criteria and than WASPAS method is used to evaluate and rank the given alternatives. Results: A real-life case study is given for the selected approach. Also, sensitivity analysis is given. This selected alternative confirms the preferences of decision makers as it is a company that operates internationally and has a reputation and awareness in sustainability within its own country. Conclusions: Due to the increase in awareness on sustainability and the resulting regulations, the issue of sustainability in supply chains and sustainable supplier selection has become an important issue for companies. It is aimed to examine the supplier selection of a company in an electronics sector on a "sustainable" basis, considering from economic, environmental and social aspects. In this study, which was carried out to fill the literature gap identified in this field and to propose a systematic approach to sustainable supplier selection, a hybrid method which consists of both SWARA and WASPAS method have been used to evaluate the suppliers under the sustainability dimensions. With the help of a hybrid model, decision makers can manage conflict management of individual challenges using an analytical process.
Źródło:
LogForum; 2021, 17, 4; 465--476
1734-459X
Pojawia się w:
LogForum
Dostawca treści:
Biblioteka Nauki
Artykuł
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