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排序方式: 共有770条查询结果,搜索用时 15 毫秒
111.
Dziuba Szymon Cierniak-Emerych Anna Michalski Grzegorz Poulová Petra Mohelská Hana Klímová Blanka 《Universal Access in the Information Society》2021,20(1):171-178
Universal Access in the Information Society - It is generally accepted that it is young people who are particularly interested in information and communication technologies (ICT). Older adults... 相似文献
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113.
Journal of Failure Analysis and Prevention - This paper investigates the tensile and fatigue behavior of polyethylene terephthalate glycol (PETG) parts manufactured by fused filament fabrication... 相似文献
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115.
Gagolewski Marek Żogała-Siudem Barbara Siudem Grzegorz Cena Anna 《Scientometrics》2022,127(5):2829-2845
Scientometrics - We demonstrate that by using a triple of simple numerical summaries: an author’s productivity, their overall impact, and a single other bibliometric index that aims to... 相似文献
116.
Grzegorz Bancerek Czesław Byliński Adam Grabowski Artur Korniłowicz Roman Matuszewski Adam Naumowicz Karol Pąk 《Journal of Automated Reasoning》2018,61(1-4):9-32
The Mizar system is one of the pioneering systems aimed at supporting mathematical proof development on a computer that have laid the groundwork for and eventually have evolved into modern interactive proof assistants. We claim that an important milestone in the development of these systems was the creation of organized libraries accumulating all previously available formalized knowledge in such a way that new works could effectively re-use all previously collected notions. In the case of Mizar, the turning point of its development was the decision to start building the Mizar Mathematical Library as a centrally-managed knowledge base maintained together with the formalization language and the verification system. In this paper we show the process of forming this library, the evolution of its design principles, and also present some data showing its current use with the modern version of the Mizar proof checker, but also as a rich corpus of semantically linked mathematical data in various areas including web-based and natural language proof presentation, maths education, and machine learning based automated theorem proving. 相似文献
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The purpose of this paper is to describe experiments carried out on laser stake welded T-joints of web-core steel sandwich structures. A special test setup was developed to measure the shear-induced rotation at the T-joint. The ratio of the shear force to rotation angle gave the joint stiffness. This stiffness was measured for specimens with two different face-plate thicknesses. The influence of weld thickness, root gap and occurrence of contact were further investigated with finite element simulations. Finally, the shear stiffness of the sandwich structure transverse to the web plate direction was determined using the experimentally obtained average joint stiffness value. The validation of the shear stiffness was carried out by considering a beam in four-point bending. The agreement between calculated deflection and stress and experimental results was found to be good. 相似文献
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Zaleszczyk W Janik E Presz A Dłuzewski P Kret S Szuszkiewicz W Morhange JF Dynowska E Kirmse H Neumann W Petroutchik A Baczewski LT Karczewski G Wojtowicz T 《Nano letters》2008,8(11):4061-4065
It is shown that the growth of II-VI diluted magnetic semiconductor nanowires is possible by the catalytically enhanced molecular beam epitaxy (MBE). Zn(1-x)MnxTe NWs with manganese content up to x=0.60 were produced by this method. X-ray diffraction, Raman spectroscopy, and temperature dependent photoluminescence measurements confirm the incorporation of Mn(2+) ions in the cation substitutional sites of the ZnTe matrix of the NWs. 相似文献