Temat: tool selection - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Modern machine tools in application to advanced aerospace components manufacturing
Autorzy:: Radkowski, G.
Szyszka, G.
Tematy:: advanced aerospace structure
machine tool selection
software
service; Pokaż więcej
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Powiązania:: https://bibliotekanauki.pl/articles/99531.pdf Link otwiera się w nowym oknie
Opis:: The article describes general characteristics of components produced by WSK "PZL-Rzeszow" S.A. (WSK) and their influence on machine tool's technical requirements and special accessories defined during the procurement process of new machining center or lathe. It shortly presents the investment process in new machine tool and a new product implementation path. A point on CAD/CAM and CNC systems existing in WSK and some specific aspects concerning such software is also mentioned. Maintenance challenges have also been pointed to based on WSK's experience.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Application of SWARA-CoCoSo-based approach for tool selection of an electrical discharge machining process
Autorzy:: Kumar, Vidyapati
Mohata, Abhishek
Mistri, Ankita
Bartoszuk, Marian
Tematy:: tool selection
MCDM
SWARA method
CoCoSo
EDM process; Pokaż więcej
Wydawca:: Politechnika Opolska
Powiązania:: https://bibliotekanauki.pl/articles/34656176.pdf Link otwiera się w nowym oknie
Opis:: Electrical discharge machining (EDM) is a non-traditional machining process widely used in manufacturing to create complex geometries on hard-to-machine materials. The tool material used in EDM plays a crucial role in determining the machining performance and final surface finish of the workpiece. In this research, we aimed to optimize the tool selection for creating circular holes on SG iron (grade 450/12) using EDM. To this end, we employed a step-wise weight assessment ratio analysis (SWARA) based combined compromise solution (CoCoSo) approach to evaluate the performance of different tool materials under various machining conditions. The machining conditions considered in this study included peak current (I), pulse-on time (Ton), and inter-electrode gap (IEG). The results of our study showed that the CoCoSo approach is an effective method for tool selection in EDM, and it can be used to identify the optimal tool material and machining conditions for creating circular holes on SG iron. The final appraisal scores obtained from the ranking of tool materials indicated that copper tools scored highest (2.4767, ranking 1), followed by copper tungsten (2.3615, ranking 2), while brass scored lowest (1.6606, ranking 3). Furthermore, Spearman's rank correlations for different integrated MCDM techniques were performed, which demonstrated the efficacy of this technique. It has been demonstrated that implementing the SWARA-CoCoSo method can effectively optimize the EDM process with regard to sustainable machining practices.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Ensemble selection in one-versus-one scheme – case study for cutting tools classification
Autorzy:: Rojek, Izabela
Burduk, Robert
Heda, Paulina
Tematy:: ensemble of classifiers
ensemble selection
one-vs-one decomposition
cutting tool
zespół klasyfikatorów
wybór zespołu
dekompozycja jeden na jeden
narzędzie tnące; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2086820.pdf Link otwiera się w nowym oknie
Opis:: The binary classifiers are appropriate for classification problems with two class labels. For multi-class problems, decomposition techniques, like one-vs-one strategy, are used because they allow the use of binary classifiers. The ensemble selection, on the other hand, is one of the most studied topics in multiple classifier systems because a selected subset of base classifiers may perform better than the whole set of base classifiers. Thus, we propose a novel concept of the dynamic ensemble selection based on values of the score function used in the one-vs-one decomposition scheme. The proposed algorithm has been verified on a real dataset regarding the classification of cutting tools. The proposed approach is compared with the static ensemble selection method based on the integration of base classifiers in geometric space, which also uses the one-vs-one decomposition scheme. In addition, other base classification algorithms are used to compare results in the conducted experiments. The obtained results demonstrate the effectiveness of our approach.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Ensemble selection in one-versus-one scheme – case study for cutting tools classification
Autorzy:: Rojek, Izabela
Burduk, Robert
Heda, Paulina
Tematy:: ensemble of classifiers
ensemble selection
one-vs-one decomposition
cutting tool
zespół klasyfikatorów
wybór zespołu
rozkład jeden na jeden
narzędzie tnące; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2090713.pdf Link otwiera się w nowym oknie
Opis:: The binary classifiers are appropriate for classification problems with two class labels. For multi-class problems, decomposition techniques, like one-vs-one strategy, are used because they allow the use of binary classifiers. The ensemble selection, on the other hand, is one of the most studied topics in multiple classifier systems because a selected subset of base classifiers may perform better than the whole set of base classifiers. Thus, we propose a novel concept of the dynamic ensemble selection based on values of the score function used in the one-vs-one decomposition scheme. The proposed algorithm has been verified on a real dataset regarding the classification of cutting tools. The proposed approach is compared with the static ensemble selection method based on the integration of base classifiers in geometric space, which also uses the one-vs-one decomposition scheme. In addition, other base classification algorithms are used to compare results in the conducted experiments. The obtained results demonstrate the effectiveness of our approach.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Selection of the most adequate trip-modelling tool for integrated transport planning system
Autorzy:: Sawicki, P.
Kiciński, M.
Fierek, S.
Tematy:: trip-modelling tool
selection procedure
integrated transport planning
ITPS
planowanie transportu
zintegrowany system transportowy
transport w regionie
modelowanie
narzędzia modelowania
procedura selekcji; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/224323.pdf Link otwiera się w nowym oknie
Opis:: This paper deals with the problem of selection the most suitable trip-modelling tool (TMT), which is a part of the more complex integrated transport planning system (ITPS) at the regional scale. Since an application of TMT is not autonomous and several different users exist the selection problem is not a trivial. In this paper, an original five-phase selection procedure is presented. The first phase consists in specification of both, detailed expectations of all identified users and technical requirements of ITPS. Second phase deals with research on available TMT while a third one is concentrated on defining a comprehensive set of criteria. In this phase critical criteria as well as selection criteria are defined. First one is utilised to eliminate unacceptable TMTs in phase four and second one to evaluate and select most adequate TMT in phase five. In the paper an exemplary application of this procedure is presented. The authors have defined 2 critical criteria and a set of 19 selection criteria. The last one is divided into 3 main subsets, i.e. functional, technical and financial contexts of selection process. All the selection criteria are characterised by 43 sub-criteria and some of them are more detailed extended. Using this procedure 3 out of 6 alternative TMTs including Emme, Aimsun and Visum have been initially accepted and next evaluated. Finally, Visum has been selected and recommended for application into ITPS.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: "Wiadomości" : nieistniejący krakowski dziennik z 1974 roku, czyli o badaniach selekcji odbiorczej w Ośrodku Badań Prasnoznawczych
"Wiadomości" (The News) a fictive Krakow daily (1974) or a piece of research into reception selection at the Cracow Press Research Center
Autorzy:: Filas, Ryszard
Cieślikowa, Agnieszka J.
Opis:: Under the pretext of a discovery of a newspaper allegedly published in 1974 this article discusses recetpion selection research conducted at the Cracow Press Research Center in the second half of the 20th century.
Pod pretekstem odkrycia nieznanego druku z 1974 r. artykuł omawia badania nad selekcją odbiorczą prasy w ciągu II połowy XX wieku prowadzone przez Ośrodek Badań Prasoznawczych.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 7.

Tytuł:: Wiadomości (The News) a fictive Krakow daily (1974), or a piece of research into reception selection at the Cracow Press Research Center
„Wiadomości” — nieistniejący krakowski dziennik z 1974 roku, czyli o badaniach selekcji odbiorczej w Ośrodku Badań Prasoznawczych
Autorzy:: Cieślikowa, Agnieszka J.
Filas, Ryszard
Tematy:: 20th century press studies
reception of press selection
a fictive newspaper as a research tool
gazeta „Wiadomości”
Ośrodek Badań Prasoznawczych
badania nad prasą
selekcja odbiorcza; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2074821.pdf Link otwiera się w nowym oknie
Opis:: Under the pretext of a discovery of a newspaper allegedly published in 1974 this article discusses reception selection research conducted at the Cracow Press Research Center in the second half of the 20th century.
Pod pretekstem odkrycia nieznanego druku z 1974 r. artykuł omawia badania nad selekcją odbiorczą prasy w ciągu II połowy XX wieku prowadzone przez Ośrodek Badań Prasoznawczych.
Dostawca treści:: Biblioteka Nauki

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