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    Wyświetlanie 1-11 z 11
    Tytuł:
    The framework of agent-based negotiation platform for foundries cooperating in supply chain
    Autorzy:
    Kluska-Nawarecka, S.
    Regulski, K.
    Rojek, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/379687.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    information technology
    foundry industry
    innovative foundry technologies
    innovative foundry materials
    ontology
    agent technology
    production support
    technologia informacyjna
    przemysł odlewniczy
    innowacyjna technologia odlewnicza
    innowacyjny materiał odlewniczy
    ontologia
    technologia agentowa
    wspomaganie produkcji
    Opis:
    This paper concerns the domain of contracts in the metallurgy and heavy industry, that are the form of deals making between cooperating companies being suppliers and consumers of some goods. From a general point of view cooperation enables for small companies to realize orders that are too large for an individual producer, but contract negotiations, further scheduling and support of production are usually too difficult and complicated. This paper presents a proposition of an information system, that should make cooperation between companies more available. Such system should be distributed among cooperating producers, what is the reason for choosing of the agent technology as the main software paradigm. This system should also support interchanging of information in many norms and technical standards, what results in the use of ontology concerning metallurgy and heavy industry.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 4; 73-78
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Decision Support System in the Domain of Casting Defects Diagnosis
    Autorzy:
    Wilk-Kołodziejczyk, D.
    Rojek, G.
    Regulski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/947573.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    application of information technology
    foundry industry
    castings defects
    diagnosis
    zastosowanie technologii informatycznych
    przemysł odlewniczy
    wady odlewów
    Opis:
    This article presents a computer system for the identification of casting defects using the methodology of Case-Based Reasoning. The system is a decision support tool in the diagnosis of defects in castings and is designed for small and medium-sized plants, where it is not possible to take advantage of multi-criteria data. Without access to complete process data, the diagnosis of casting defects requires the use of methods which process the information based on the experience and observations of a technologist responsible for the inspection of ready castings. The problem, known and studied for a long time, was decided to be solved with a computer system using a CBR (Case-Based Reasoning) methodology. The CBR methodology not only allows using expert knowledge accumulated in the implementation phase, but also provides the system with an opportunity to "learn" by collecting new cases solved earlier by this system. The authors present a solution to the system of inference based on the accumulated cases, in which the main principle of operation is searching for similarities between the cases observed and cases stored in the knowledge base.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 3; 107-110
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methods of Computational Intelligence in the Context of Quality Assurance in Foundry Products
    Autorzy:
    Rojek, G.
    Regulski, K.
    Wilk-Kołodziejczyk, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/380386.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    application of information technology
    foundry industry
    quality management
    casting defects
    computational intelligence
    artificial intelligence
    zastosowanie technologii informatycznych
    przemysł odlewniczy
    zarządzanie jakością
    wady odlewnicze
    inteligencja obliczeniowa
    sztuczna inteligencja
    Opis:
    One way to ensure the required technical characteristics of castings is the strict control of production parameters affecting the quality of the finished products. If the production process is improperly configured, the resulting defects in castings lead to huge losses. Therefore, from the point of view of economics, it is advisable to use the methods of computational intelligence in the field of quality assurance and adjustment of parameters of future production. At the same time, the development of knowledge in the field of metallurgy, aimed to raise the technical level and efficiency of the manufacture of foundry products, should be followed by the development of information systems to support production processes in order to improve their effectiveness and compliance with the increasingly more stringent requirements of ergonomics, occupational safety, environmental protection and quality. This article is a presentation of artificial intelligence methods used in practical applications related to quality assurance. The problem of control of the production process involves the use of tools such as the induction of decision trees, fuzzy logic, rough set theory, artificial neural networks or case-based reasoning.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 2; 11-16
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ wybranych parametrów i warunków pracy opryskiwacza na położenie belki polowej w płaszczyźnie poziomej
    The impact of selected spraying machine work parameters and operating conditions on field toolbar position in horizontal plane
    Autorzy:
    Szewczyk, A.
    Owsiak, Z.
    Lejman, K.
    Rojek, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/290035.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    opryskiwacz polowy
    belka polowa
    ruch poziomy
    field spraying machine
    field toolbar
    horizontal motion
    Opis:
    W pracy określono wpływ wybranych parametrów i warunków pracy opryskiwacza na pozycję belki polowej w płaszczyźnie poziomej podczas ruchu roboczego. Posłużono się wskaźnikiem położenia belki WPB, za pomocą którego powiązano wielkość kąta wychylenia belki polowej i udział powierzchni opryskanej przy tym kącie wychylenia. Przeprowadzona analiza wykazała, że ciśnienie w ogumieniu i prędkość robocza wpływa istotnie na poziomie α = 0,05 na wartość wskaźnika położenia belki. Wysokość ustawienia belki oraz stopień napełnienia zbiornika nie wpłynęły istotnie na wartość analizowanego wskaźnika. Badania przeprowadzone były w warunkach polowych.
    The paper determines the impact of selected spraying machine work parameters and operating conditions on field toolbar position in horizontal plane during working movement. The research involved using toolbar position index WPB, allowing to connect toolbar inclination angle value to the share of area sprayed at that inclination angle. Carried out analysis has proven that pressure in tyres and running speed significantly (at the level of α = 0.05) affects toolbar position index value. Toolbar position height and tank filling degree had no significant impact on analysed index value. The tests were carried out in field conditions.
    Źródło:
    Inżynieria Rolnicza; 2010, R. 14, nr 2, 2; 217-224
    1429-7264
    Pojawia się w:
    Inżynieria Rolnicza
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie prostownicy rurowo-wiązkowej do ujednorodniania strumienia powietrza w tunelu aerodynamicznym
    Use of the bundle-pipe straightening machine for homogenisation of the air stream in the aerodynamic tunnel
    Autorzy:
    Szewczyk, A.
    Łuczycka, D.
    Lech, K.
    Rojek, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/286907.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    tunel aerodynamiczny
    strumień powietrza
    prostownica powietrza
    aerodynamic tunnel
    air stream
    air straightening machine
    Opis:
    W pracy przedstawiono metodę ujednorodniania strumienia powietrza w tunelu aerodynamicznym do badań rozpylaczy. Do tego celu zastosowano prostownicę rurowo-wiązkową własnej konstrukcji. Uzyskane wyniki przedstawiono w postaci wykresów powierzchniowych rozkładów prędkości powietrza w miejscu mocowania rozpylacza. Na podstawie analizy wyników badań stwierdzono, że zaproponowana konstrukcja prostownicy umożliwia uzyskanie dostatecznie jednorodnego strumienia powietrza by można było w tym tunelu prowadzić badania nad wpływem prędkości powietrza na rozkład opadu rozpylanej cieczy.
    The work presents the method of homogenisation of the air stream in the aerodynamic tunnel for tests of sprayers. For this purpose, a bundle-pipe straightening machine of own construction was used. The results were presented in the form of charts of surface distributions of air velocity in the place of fastening of the sprayer. On the basis of the analysis of test results, it was determined that the proposed construction of the straightening machine would make it possible to obtain a sufficiently homogeneous air stream so that the impact of air velocity on the distribution of fall of the sprayed liquid could be tested in that tunnel.
    Źródło:
    Inżynieria Rolnicza; 2010, R. 14, nr 4, 4; 221-227
    1429-7264
    Pojawia się w:
    Inżynieria Rolnicza
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Case-Based Reasoning System for the Selection of Silumin Alloying Elements
    Autorzy:
    Rojek, G.
    Regulski, K.
    Kluska-Nawarecka, S.
    Wilk-Kołodziejczyk, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/382446.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry industry
    information technology
    silumin
    mechanical properties
    modified alloys
    additions Cr, Mo, V, W
    przemysł odlewniczy
    technologia informacyjna
    właściwości mechaniczne
    stopy modyfikowane
    dodatki Cr, Mo, V, W
    Opis:
    This work presents the project of the application of Case-based reasoning (CBR) methodology to an advisory system. This system should give an assistance by selection of proper alloying additives in order to obtain a material with predetermined mechanical properties. The considered material is silumin EN AC-46000 (hypoeutectic Al-Si alloy) that is modified by the addition of Cr, Mo, V and W elements in the range from 0% to 0.5% in the modified alloy. The projected system should indicate to the user the content of particular additives so that the obtained material is in the chosen range of parameters: tensile strength Rm, yield strength Rp0.2, elongation A and hardness HB. The CBR methodology solves new problems basing on the solutions of similar problems resolved in the past. The advantage of the CBR application is that the advisory system increases knowledge base as the subsequent use of the system. The presented design of the advisory system also considers issues related to the ergonomics of its operation.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 3; 126-131
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Implementation of Computer Platform for Foundries Cooperating in a Supply Chain
    Autorzy:
    Wilk-Kołodziejczyk, D.
    Kluska-Nawarecka, S.
    Rojek, G.
    Regulski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/382875.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    application of information technology
    foundry industry
    innovative foundry technologies
    innovative materials
    multi-agent technology
    production support
    zastosowanie technologii informatycznych
    przemysł odlewniczy
    innowacyjne technologie odlewnicze
    materiały innowacyjne
    wsparcie produkcji
    Opis:
    This article presents a practical solution in the form of implementation of agent-based platform for the management of contracts in a network of foundries. The described implementation is a continuation of earlier scientific work in the field of design and theoretical system specification for cooperating companies [1]. The implementation addresses key design assumptions - the system is implemented using multi-agent technology, which offers the possibility of decentralisation and distributed processing of specified contracts and tenders. The implemented system enables the joint management of orders for a network of small and medium-sized metallurgical plants, while providing them with greater competitiveness and the ability to carry out large procurements. The article presents the functional aspects of the system - the user interface and the principle of operation of individual agents that represent businesses seeking potential suppliers or recipients of services and products. Additionally, the system is equipped with a bi-directional agent translating standards based on ontologies, which aims to automate the decision-making process during tender specifications as a response to the request.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 3; 111-116
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Computer Advisory System in the Domain of Cooper Alloys Manufacturing
    Autorzy:
    Wilk-Kołodziejczyk, D.
    Kluska-Nawarecka, S.
    Rojek, G.
    Regulski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/383285.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    copper alloy
    bronze
    modification
    quenching
    tempering
    cased based reasoning
    stop miedzi
    brąz
    modyfikacja
    hartowanie
    odpuszczanie
    Opis:
    The main scope of the article is the development of a computer system, which should give advices at problem of cooper alloys manufacturing. This problem relates with choosing of an appropriate type of bronze (e.g. the BA 1044 bronze) with possible modification (e.g. calcium carbide modifications: Ca + C or CaC2) and possible heat treatment operations (quenching, tempering) in order to obtain desired mechanical properties of manufactured material described by tensile strength - Rm, yield strength - Rp0.2 and elongation - A5. By construction of the computer system being the goal of presented here work Case-based Reasoning is proposed to be used. Case-based Reasoning is the methodology within Artificial Intelligence techniques, which enables solving new problems basing on experiences that are solutions obtained in the past. Case-based Reasoning also enables incremental learning, because every new experience is retained each time in order to be available for future processes of problem solving. Proposed by the developed system solution can be used by a technologist as a rough solution for cooper alloys manufacturing problem, which requires further tests in order to confirm it correctness.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 3; 77-80
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Computer Catalog and Semantic Search of Data in the Domain of Cast Iron Processing
    Autorzy:
    Rojek, G.
    Regulski, K.
    Wilk-Kołodziejczyk, D.
    Kluska-Nawarecka, S.
    Wawrzaszek, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/381770.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    application of information technologies
    foundry
    semantic search
    ontology
    cast iron processing
    zastosowanie technologii informacyjnych
    odlewnictwo
    obróbka żeliwa
    Opis:
    The aim of this study is to design and implement a computer system, which will allow the semantic cataloging and data retrieval in the field of cast iron processing. The intention is to let the system architecture allow for consideration of data on various processing techniques based on the information available or searched by a potential user. This is achieved by separating the system code from the knowledge of the processing operations or from the chemical composition of the material being processed. This is made possible by the creation and subsequent use of formal knowledge representation in the form of ontology. So, any use of the system is associated with the use of ontologies, either as an aid for the cataloging of new data, or as an indication of restrictions imposed on the data which draw user attention. The use of formal knowledge representation also allows consideration of semantic meaning, a consequence of which may be, for example, returning all elements in subclasses of the searched process class or material grade.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 2; 79-84
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of Formal Knowledge Representation in Operating on Resources Concerning Cast Iron Processing
    Autorzy:
    Kluska-Nawarecka, S.
    Wilk-Kołodziejczyk, D.
    Rojek, G.
    Regulski, K.
    Polek, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/380345.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    information technology
    foundry industry
    automation in foundry
    robotics in foundry
    semantic analysis
    semantic search
    technologia informatyczna
    przemysł odlewniczy
    automatyka w odlewnictwie
    robotyka w odlewnictwie
    analiza semantyczna
    wyszukiwarka semantyczna
    Opis:
    The problem of materials selection in terms of their mechanical properties during the design of new products is a key issue of design. The complexity of this process is mainly due to a multitude of variants in the previously produced materials and the possibility of their further processing improving the properties. In everyday practice, the problem is solved basing on expert or designer knowledge. The paper is the proposition of a solution using computer-aided analysis of material experimental data, which may be acquired from external data sources. In both cases, taking into account the rapid growth of data, additional tools become increasingly important, mainly those which offer support for adding, viewing, and simple comparison of different experiments. In this paper, the use of formal knowledge representation in the form of an ontology is proposed as a bridge between physical repositories of data in the form of files and user queries, which are usually formulated in natural language. The number and the sophisticated internal structure of attributes or parameters that could be the criteria of the search for the user are an important issue in the traditional data search tools. Ontology, as a formal representation of knowledge, enables taking into account the known relationships between concepts in the field of cast iron, materials used and processing techniques. This allows the user to receive support by searching the results of experiments that relate to a specific material or processing treatment. Automatic presentation of the results which relate to similar materials or similar processing treatments is also possible, which should make the conducted analysis of the selection of materials or processing treatments more comprehensive by including a wider range of possible solutions.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 2; 39-42
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Approximation of Ausferrite Content in the Compacted Graphite Iron with the Use of Combined Techniques of Data Mining
    Autorzy:
    Regulski, K.
    Wilk-Kołodziejczyk, D.
    Kacprzyk, B.
    Gumienny, G.
    Rojek, G.
    Mrzygłód, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/379587.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    information technologies
    foundry
    graphite irons
    compacted
    ausferrite
    data mining
    regression
    odlewnictwo
    technologie informacyjne
    zagęszczanie
    żeliwo grafitowe
    Opis:
    This article presents the methodology for exploratory analysis of data from microstructural studies of compacted graphite iron to gain knowledge about the factors favouring the formation of ausferrite. The studies led to the development of rules to evaluate the content of ausferrite based on the chemical composition. Data mining methods have been used to generate regression models such as boosted trees, random forest, and piecewise regression models. The development of a stepwise regression modelling process on the iteratively limited sets enabled, on the one hand, the improvement of forecasting precision and, on the other, acquisition of deeper knowledge about the ausferrite formation. Repeated examination of the significance of the effect of various factors in different regression models has allowed identification of the most important variables influencing the ausferrite content in different ranges of the parameters variability.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 3; 117-122
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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