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1
Content available Application of selected methods of multicriterial assessment in the selection process of equipment used at the extraction face – case study
Korban Zygmunt
Multidisciplinary Aspects of Production Engineering
|
2019
|
Vol. 2, Iss. 1
31--37
EN
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.
2
Content available Selected Problems of the Environmental Impact Analysis of Investment Projects Based on Life Cycle Assessment Procedure
Szafranko Elżbieta
Journal of Ecological Engineering
|
2019
|
Vol. 20, nr 9
87--94
EN
The building objects show a wide variety. Among them, we can distinguish buildings and various building constructions. In addition to the fact that they are of various sizes, they perform different functions, while their purpose and use generates various problems, they can be made using various materials, different technologies and construction solutions. Therefore, the decision on which solutions to apply may be difficult to make. In this situation, it is good to develop several alternative solutions for their comprehensive comparison. In addition, the existing regulations that originate in the EU directives, in many cases impose the obligation to develop several variants of future investments and analyze them taking into account many factors. In the EU recommendations, the analysis related to the impact of construction investments on the environment is of highest importance. The ISO 14040–1404X regulations created and introduced by the European Union are the most important tool for a global assessment of the environmental impact of a product, facility and service. They relate to the environmental impact assessment of the entire Life Cycle Assessment (LCA), and their assumption is to identify and minimize any environmental impacts that may arise from the production, use and disposal of the product. Research should include specific stages according to the LCA evaluation system: determination of the purpose and scope of the assessment, inventory of input and output data and the impact assessment. The following research methods were used: source materials analysis, library query, advanced data collection methods through online surveys, LCA assessment, multicriterial methods. The research conducted by the author showed that the analysis involving selected problems related to the object-environment interaction is dominant. However, in practice it is difficult to find the analyses covering the entire lifecycle of an object in accordance with the LCA procedure and examples of comparison of specific design solutions within the variant assessment procedure taking into account the LCA procedure. The aim of the article is to show how such procedure can look while comparing the exemplary variants of a construction project. The article presents an example and diagrams of conduct covering the whole life cycle of an object, and the analysis is based on specific examples.
3
Content available Localisation of Waste Thermal Treatment Plant with Multi-Criteria Analysys
Szafranko E.
Journal of Ecological Engineering
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2017
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Vol. 18, nr 3
187--194
EN
At the stage of planning a construction project, an assessment must be made of possible variants of its implementation. Variants may pertain to the localisation, economic aspects as well as the actual construction and design solutions. This article deals with the question of selecting the localisation for a construction project consisting of building a plant for thermal treatment of waste. In order to chose an optimal location, first we must establish assessment criteria which will guide us through a supported choice procedure, and next we should apply a method for the evaluation of variant solutions. Some criteria refer to measurable phenomena and are therefore easy to be defined and weighed. Others require descriptions, designating the right scale and proper methods for their identification. The article contains an example of a set of criteria and a case study of using multi-criteria analytical methods for selecting the location to develop a specific construction project such as a Waste Thermal Treatment Plant. Some well-known methods are compared with the approach proposed by the author. The methods applied in analyses have certain advantages and disadvantages. Irrespective of which method is applied, a reliable and trustworthy analysis of the location for a future construction project brings about many benefits. Such an analysis creates an opportunity to become aware of problems and obstacles which one may come across both while executing the project and in the many years to come, when the raised construction is used.
4
Content available The multicriteria method for selecting rigs for drilling gas wells from post-mining gobs
Macuda J., Łukańko Ł., Hendel J.
AGH Drilling, Oil, Gas
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2017
|
Vol. 34, no. 4
907--915
EN
During drilling wellbores from the surface to recover methane from post-extraction gobs, attention should be paid to using appropriate rigs. Rigs with optimum technological parameters, adjusted to the geological setting, design of wellbore and technology of drilling, allow for high drilling rates and a considerably lower cost of realization to be obtained. The rig to be used for drilling production wells can be correctly selected using the multicriteria optimization method with synthetic evaluation measure of its technological parameters. For this purpose, the technological parameters of rigs available on the Polish market for the realization of normal diameter wells with percussion-rotary method to a depth of 500 m and 1000 m were reviewed. Taking into account the geological build of the Upper Silesian area and the design of the producing well used for the production of methane from past-extraction gobs, eight evaluation criteria and their weights (W) were selected. On this basis the technical parameters of rigs to be used for drilling wells to a depth of 500 m and 1000 m were reviewed with the multicriteria method. This created the basis for selecting dedicated rigs with optimum technological parameters for drilling normal diameter wells to a depth of 500 m and 1000 m.
5
Content available Multicriteria analysis of selected building thermal insulation solutions
Nowak P., Skłodkowski M.
Archives of Civil Engineering
|
2016
|
Vol. 62, nr 3
137--148
EN
The purpose of this paper is to present and analyse the decision-making problem faced by a future house owner - selection of the optimal solution of building thermal insulation in relation to the selected criteria, both related to costs and future benefits. The problem of selecting the best solutions in the construction sector is widely discussed in the science literature. In this paper, the authors decided to solve the raised problem by using the Entropy method.
PL
Celem niniejszego referatu jest zaprezentowanie i analiza problemu decyzyjnego, przed jakim stoi przyszły właściciel domu - wybór optymalnego rozwiązania dla izolacji termicznej budynku w odniesieniu do wybranych kryteriów, zarówno kosztowych, jak i tych uwzględniających przyszłe korzyści. Problem wyboru najlepszych rozwiązań w budownictwie podejmowany jest szeroko w literaturze naukowej. W swojej pracy, autorzy zdecydowali się na rozwiązanie postawionego problemu za pomocą metody Entropii.
6
Content available Wybór metody wielokryterialnej do wspomagania decyzji inwestycyjnych
Pośpiech E., Mastalerz-Kodzis A.
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
|
2015
|
z. 86
379--388
PL
Metody wielokryterialne dają możliwość uporządkowania lub wyodrębnienia grup preferencji obiektów charakteryzowanych przez wiele różnych cech. W artykule podejmowane jest zagadnienie wyboru metody wielokryterialnej do wspomagania decyzji inwestycyjnych, jaką jest m.in. selekcja walorów giełdowych, stanowiących podstawę budowy portfela inwestycyjnego. Walory te mogą być oceniane przez pryzmat wielu charakterystyk (fundamentalnych, rynkowych i innych), co uzasadnia stosowanie takich narzędzi analizy.
EN
Multi-criteria methods enable to build rankings or create groups of preferences of objects that are assessing in terms of many criteria. The portfolio selection is a problem of assessing companies in terms of fundamental, market or other characteristics. The purpose of the paper is to choose multi-criteria method that may in the best way support the investment decision making (on the example of portfolio selection).
7
Content available remote Ways to determine criteria in multi-criteria methods applied to assessment of variants of a planned building investment
Szafranko E.
Czasopismo Techniczne. Budownictwo
|
2014
|
R. 111, z. 2-B
41--48
EN
When planning a construction investment, an evaluation is often performed. In order to make the best possible choice, it is necessary to define the correct specification of the evaluation criteria which will guide us through the decision-supporting procedure. Some criteria refer to measurable phenomena, hence they can easily be defined. Others, however, need to be described with linguistic methods and require adequate scale and identification methods. This article presents methods used to prepare and choose the correct criteria for carrying out an assessment of the building investment, applicable to various criteria and different multi-criteria methods.
PL
Na etapie planowania inwestycji budowlanych często przeprowadzana jest ocena wariantów ich realizacji. Aby dokonać optymalnego wyboru, należy właściwie określić kryteria oceny, którymi będziemy się kierować, przeprowadzając procedurę wspomagania wyboru. Niektóre kryteria dotyczą zjawisk mierzalnych i są łatwe do definiowania i wagowania. Inne natomiast wymagają opisu metodami lingwistycznymi, ustalenia właściwej skali i odpowiednich metod ich identyfikacji. W artykule zaprezentowano metody właściwego doboru kryteriów oceny wariantów inwestycji budowlanej dla różnych kryteriów i różnych metod analizy.
8
Content available Zastosowanie metody AHP do wyboru przedsiębiorstwa budowlanego do współpracy partnerskiej
Radziszewska-Zielina E.
Budownictwo i Architektura
|
2014
|
Vol. 13, nr 4
399--406
PL
Partnerstwo w budownictwie to długoterminowe zobowiązanie między dwoma lub więcej organizacjami mające na celu osiągnięcie konkretnych celów biznesowych poprzez maksymalizację efektywności zasobów każdego z uczestników. Partnerstwo w odróżnieniu od konkurencji charakteryzuje się współpracą a nie rywalizacją, która niekiedy przeradza się w walkę. Partnerzy współpracują, dążąc do realizacji przedsięwzięcia budowlanego, które jest ich wspólnym celem oraz do osiągnięcia obopólnych korzyści. Autorka opracowała model badawczy relacji partnerskich przedsiębiorstw budowlanych. W niniejszym artykule zaprezentowano nietypowe zastosowanie metody wielokryterialnej AHP do wyboru przedsiębiorstwa budowlanego do współpracy partnerskiej podczas realizacji przedsięwzięć budowlanych.
EN
In construction industry partnering is a long-term commitment between two or more organizations aimed at achieving particular business objectives by maximizing the effectiveness of each participant’s resources. As opposed to competition, partnering is characterized by cooperation rather than rivalry which may transform into fighting. Partners cooperate, striving for the implementation of a construction project, which is their common objective, and for mutual benefits. The present author has developed a research model of the partnering relations of construction enterprises. This paper presents a non-standard application of AHP multi-criteria method in choosing a construction enterprise for partnering cooperation during the construction project implementation.
9
Komputerowe wspomaganie podejmowania decyzji wielokryterialnej oceny systemów przewozowych
Pyza D.
Logistyka
|
2009
|
nr 3
CD-CD
PL
W referacie przedstawiono problem dystrybucji dóbr z wykorzystaniem wielokryterialnej metody wspomagania decyzji. Analiza problemu realizowana była dwuetapowo, w pierwszym etapie sformułowano zadanie optymalizacyjne obsługi transportowej, a następnie przeprowadzono ocenę uzyskanych rozwiązań wykorzystując metodę wielokryterialną. Do rozwiązania problemu wykorzystano programy komputerowe OPTYMALIZACJA TRAS ODWOZU oraz EKSPERT.
EN
The paper discuses problem of goods distribution with multicriteria method as a decision supporting tool. The problem analysis was realized in two stages. In the first stage optimization task for transportation services was formulated and in second stage gathered solutions were evaluated with multicriteria method. In order to solve the problem author uses computer programs: TRANSPORT ROUTE OPTIMISATION and EKSPERT.
10
Content available Wielokryterialne metody oceny funkcjonalności i doboru aparatów udojowych
Jasińska M., Szlachta J.
Inżynieria Rolnicza
|
2006
|
R. 10, nr 12(87)
217-223
PL
Celem pracy była analiza oraz ocena przydatności wielokryterialnej metody oceny aparatów udojowych. Podstawowym kryterium wielokryterialnej metody oceny danego aparatu była odchyłka między wartością zmierzoną a zalecaną przez normy ISO i IDF. Badaniami objęto sześć aparatów udojowych wiodących na polskim rynku firm. Zaprezentowane wyniki badań oraz analiza porównawcza potwierdziła przydatność wielokryterialnej metody oceny aparatów udojowych.
EN
The aim of the work was to conduct milking parameters analysis on the basis of multicriteria milking units evaluation method. The basic criterion of the method was a difference between measured value and the one recommended by ISO and IDF norms. The investigations were executed on six most commonly used milking machines on polish market. The results and the comparative analysis confirmed usefulness of multicriteria milking units evaluation method.
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