Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Jan Kosmol"'
Autor:
Jan Kosmol
Publikováno v:
Applied Sciences, Vol 11, Iss 14, p 6447 (2021)
In the spindles of HSC (High Speed Cutting) machines with rolling bearings, higher temperatures in the bearings can be expected, which may affect the resistance to movement of the bearing itself. Therefore, to estimate these resistances, it is necess
Externí odkaz:
https://doaj.org/article/1fec59a4db214b849c5d693e4b5671cf
Publikováno v:
Resources, Vol 6, Iss 4, p 68 (2017)
Dematerialization is a paradigm in resource conservation strategies. Material use should be reduced so that resource consumption as a whole can be lowered. The benefit for humankind should be completely decoupled from the natural expenditure by a def
Externí odkaz:
https://doaj.org/article/46960367e32d4ef1a12926659b72d897
Autor:
Jan Kosmol
Publikováno v:
Eksploatacja i Niezawodność – Maintenance and Reliability. 21:493-500
The paper presents a modeling of angular bearing in the context of motion resistance. It was assumed that the motion resistance depends on the contact forces. For that reason, the main goal of modeling was an estimation of the forces and determinatio
Autor:
Jan Kosmol
Publikováno v:
Journal of Theoretical and Applied Mechanics. 57:59-72
The article presents a new contact model of an angular bearing, called the extended model. The model takes account of the effects of centrifugal load caused by thr rotating ring of the bearing and the issue of elasticity. Present models, encountered
Publikováno v:
Modelling in Engineering 2020: Applied Mechanics ISBN: 9783030684549
The article presents preliminary results of experimental research on an exemplary steel machine tool body support beam unfilled and filled with polymer concrete and from homogeneous polymer concrete. The scope of the research involved an attempt to d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a92ecb97bde992c48ccdea05ca3b527d
https://doi.org/10.1007/978-3-030-68455-6_12
https://doi.org/10.1007/978-3-030-68455-6_12
Autor:
Jan Kosmol
Publikováno v:
Modelling in Engineering 2020: Applied Mechanics ISBN: 9783030684549
The paper discusses an engineering problem i.e. the machining of multiple holes in large-sized objects on a multi-spindle CNC machine tool (drilling machine). Regarding the very long time for development of such an object (a dozen to several dozens o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dfb1432ec6c0af8ff44d6232491580d
https://doi.org/10.1007/978-3-030-68455-6_11
https://doi.org/10.1007/978-3-030-68455-6_11
Autor:
Min Ha Lee, Luis Tercero, Roland Gauss, Layla van Ellen, Atsufumi Hirohata, Roderick G. Eggert, Christian Hagelüken, David Peck, Gian Andrea Blengini, Komal Habib, Wei-Qiang Chen, Milan Grohol, Philip Nuss, Alessandra Hool, Armin Reller, Andrea Thorenz, Margarethe Hofmann-Amtenbrink, James Goddin, Keisuke Nansai, Jo Dewulf, Patrick Wäger, Jan Kosmol, Dieuwertje Schrijvers, Gang Liu, Maïté Le Gleuher, Guido Sonnemann, Anthony Ku
Publikováno v:
Resources, Conservation and Recycling
Resources, Conservation and Recycling, Elsevier, 2020, 155, pp.104617. ⟨10.1016/j.resconrec.2019.104617⟩
Schrijvers, D, Hool, A, Blengini, G A, Chen, W Q, Dewulf, J, Eggert, R, van Ellen, L, Gauss, R, Goddin, J, Habib, K, Hagelüken, C, Hirohata, A, Hofmann-Amtenbrink, M, Kosmol, J, Le Gleuher, M, Grohol, M, Ku, A, Lee, M H, Liu, G, Nansai, K, Nuss, P, Peck, D, Reller, A, Sonnemann, G, Tercero, L, Thorenz, A & Wäger, P A 2020, ' A review of methods and data to determine raw material criticality ', Resources, Conservation and Recycling, vol. 155, 104617 . https://doi.org/10.1016/j.resconrec.2019.104617
RESOURCES CONSERVATION AND RECYCLING
Resources, Conservation and Recycling, Elsevier, 2020, 155, pp.104617. ⟨10.1016/j.resconrec.2019.104617⟩
Schrijvers, D, Hool, A, Blengini, G A, Chen, W Q, Dewulf, J, Eggert, R, van Ellen, L, Gauss, R, Goddin, J, Habib, K, Hagelüken, C, Hirohata, A, Hofmann-Amtenbrink, M, Kosmol, J, Le Gleuher, M, Grohol, M, Ku, A, Lee, M H, Liu, G, Nansai, K, Nuss, P, Peck, D, Reller, A, Sonnemann, G, Tercero, L, Thorenz, A & Wäger, P A 2020, ' A review of methods and data to determine raw material criticality ', Resources, Conservation and Recycling, vol. 155, 104617 . https://doi.org/10.1016/j.resconrec.2019.104617
RESOURCES CONSERVATION AND RECYCLING
The assessment of the criticality of raw materials allows the identification of the likelihood of a supply disruption of a material and the vulnerability of a system (e.g. a national economy, technology, or company) to this disruption. Inconclusive o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb6b985cf9bcfe8c965bfcc94a9337f3
https://eprints.whiterose.ac.uk/152732/1/A_review_of_methods_and_data_to_determine_raw_material_criticality_revised_highlights.docx
https://eprints.whiterose.ac.uk/152732/1/A_review_of_methods_and_data_to_determine_raw_material_criticality_revised_highlights.docx
Publikováno v:
Eksploatacja i Niezawodność – Maintenance and Reliability. 20:352-358
Operational problems often remain undetected until a machine is commissioned and first machining is attempted. Heavy-duty machines are a specific group of machine tools due to the character of their manufacturing process. As they are often manufactur
Autor:
Gerhard Schmidt, Regine Vogt, Jürgen Giegrich, Markus Blepp, Günter Dehoust, Andreas Auberger, Claudia Kämper, Jan Kosmol, Michael Priester, Peter Dolega, Andreas Manhart
Publikováno v:
Mineral Economics. 32:91-107
Environmental aspects are more and more relevant for raw material policy-making and responsible sourcing strategies. This trend is partly based on growing public awareness of problems and impacts associated with extraction and processing of ores and
Publikováno v:
Resources, Conservation and Recycling. 175:105858
Indicators are required to monitor the progress of resource and circular economy policies. The German Sustainable Development Strategy and Resource Efficiency Program already include a number of indicators for mapping Germany's resource use and socio