Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Michael A. Tomaszewski"'
Publikováno v:
Volume 15: Advances in Multidisciplinary Engineering.
Small precision parts with miniaturized features are increasingly used in components such as sensors, micro-medical devices, micro-fuel cells, and others. Mechanical micromachining processes, e.g., turning, drilling, milling and grinding are often us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3b1c1dd8f105a5b931197ee287110b0
https://doi.org/10.1115/imece2015-50053
https://doi.org/10.1115/imece2015-50053
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 129:170-176
A small mesoscopic gas turbine engine (MGTE) simulator was tested at speeds over 700,000 rpm. The MGTE was operated with specially designed miniature compliant foil journal and thrust air bearings. The operation of the simulator rotor and foil bearin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0818b138bcfb3fa85692d5b7d0050cb
https://doi.org/10.1115/1.2360600
https://doi.org/10.1115/1.2360600
Publikováno v:
Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles.
In the paper the authors present the results of a study to investigate the windage and foil bearing losses in modern high-speed micro-turbomachinery such as motors, turboexpanders and turbogenerator rotor systems. Areas investigated include clearance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cea43eddeaa21695f5bbdafb04a5c5e6
https://doi.org/10.1115/gt2012-69558
https://doi.org/10.1115/gt2012-69558
Autor:
Chris G. Woelfel, Michael A. Tomaszewski, David J. Leatham, Robert M. Smith, Walter Jp, Jeremy F. Taylor
Publikováno v:
Journal of Dairy Science. 76:1678-1692
Lactation curves were estimated from DHIA data and incorporated into a model for annualized net present value. Calf value, expected daily milk income, and feed costs were discounted to the time of first freshening and accrued over a three-lactation d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae573b4dee6d9d9f0b93bf8dfbe6656b
https://doi.org/10.3168/jds.s0022-0302(93)77502-5
https://doi.org/10.3168/jds.s0022-0302(93)77502-5
Publikováno v:
Volume 5: Industrial and Cogeneration; Microturbines and Small Turbomachinery; Oil and Gas Applications; Wind Turbine Technology.
In the paper the authors will present the design and preliminary rotor-bearing dynamics test results for a hydrogen co-fired multi-fuel capable rotary burner. Hydrogen co-firing involves moving a stream of liquid or gaseous fuel through a zone of com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbd276d91670757be6abae02fffb6fc0
https://doi.org/10.1115/gt2010-22853
https://doi.org/10.1115/gt2010-22853
Autor:
Michael A. Tomaszewski
Publikováno v:
Journal of Dairy Science. 75:3242-3245
Recent advances in microcomputer-based products provide Extension with the opportunity to revise and to update historic delivery systems. Decision support systems furnish Extension professionals, consultants, allied industries, and producers with a n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::972926bb30b0ca590aa76d4fb9d1e241
https://doi.org/10.3168/jds.s0022-0302(92)78097-7
https://doi.org/10.3168/jds.s0022-0302(92)78097-7
Autor:
Thomas O. Knight, C. Richard Shumway, Michael A. Tomaszewski, Wayne H. Howard, Robert W. Blake
Publikováno v:
Agricultural Economics. 7:77-90
A method of combining survey data and Dairy Herd Improvement Association (DHIA) records to achieve low cost farm trials is presented. Farm trials and surveys of current practices and production responses are useful to identify yield gaps between expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4acca11edf75eb96f41db6faa94bf9b3
https://doi.org/10.1111/j.1574-0862.1992.tb00206.x
https://doi.org/10.1111/j.1574-0862.1992.tb00206.x
Autor:
Andrew Z. Hunsberger, Said Jahanmir, Michael J. Tomaszewski, Crystal A. Heshmat, Hooshang Heshmat, Zhaohui Ren, James F. Walton
Publikováno v:
Artificial organs. 33(9)
Design of a blood pump with a magnetically levitated rotor requires rigorous evaluation of the magnetic bearing and motor requirements and analysis of rotor dynamics and hydraulic performance with attention to hemolysis and thrombosis potential. Give
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b6352621a19e178e84c7a66c598cdad
https://pubmed.ncbi.nlm.nih.gov/19775263
https://pubmed.ncbi.nlm.nih.gov/19775263
Autor:
Tigran Khalapyan, William E. Pae, Branka Lukic, Said Jahanmir, Andrew Z. Hunsberger, Hooshang Heshmat, William J. Weiss, Conrad M. Zapanta, James F. Walton, Michael J. Tomaszewski
Publikováno v:
Artificial organs. 32(5)
The MiTiHeart (MiTiHeart Corporation, Gaithersburg, MD, USA) left ventricular assist device (LVAD), a third-generation blood pump, is being developed for destination therapy for adult heart failure patients of small to medium frame that are not being
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b064e4518dfbc11096d09323638ed04
https://pubmed.ncbi.nlm.nih.gov/18471166
https://pubmed.ncbi.nlm.nih.gov/18471166
Publikováno v:
Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Manufacturing, Materials and Metallurgy; Microturbines and Small Turbomachinery.
This paper describes the design procedures and testing program used in the development of a 30 kW single shaft permanent magnet turboalternator with compliant foil bearing supports. The development program included design tradeoff studies assessing g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e17e224f9f2542138a6412f1824a519
https://doi.org/10.1115/gt2008-51514
https://doi.org/10.1115/gt2008-51514