Zobrazeno 1 - 10
of 96
pro vyhledávání: '"W. Solano"'
Publikováno v:
Momento, Vol 0, Iss 8, Pp 59-69 (1993)
A pair of ladder operators are introduced and are for solving the radial equation for the hydrogen atom. The energy eigenvalues as well explicit analytic expressions for the eigenfunctions of this particular Kepler problem are obtained after some alg
Externí odkaz:
https://doaj.org/article/87f1cefa8f1a49d184c41a6b853a3707
Akademický článek
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Akademický článek
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Publikováno v:
Genetic Resources and Crop Evolution. 68:2411-2422
Whilst it is established that almost all cultivated coffee (Coffea arabica L.) varieties originated in Yemen after some coffee seeds were introduced into Yemen from neighboring Ethiopia, the actual coffee genetic diversity in Yemen and its significan
Akademický článek
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Due to the increasing demand on pearlitic rails to support heavier loads and higher speeds, grooved rails for tramways and light rail transit (LRT) require strengthening via alloying or heat treatment, i.e. accelerated cooling after hot-rolling. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96b9bb4edd0d8c959c0792e6667fdf27
https://www.repository.cam.ac.uk/handle/1810/296128
https://www.repository.cam.ac.uk/handle/1810/296128
Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2127::3883df6a9b857b1fe020dcaa348695c3
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3106365
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3106365
Publikováno v:
Materials Science and Technology. 33:870-878
A steel with a chemical composition meant to form nanostructured bainite following appropriate heat treatment, was, cooled rapidly from the liquid phase (1550°C) using melt spinning and modified injection-suction methods, as well as from a semi-soli
Publikováno v:
Materials Science and Technology. 33:307-310
A form of damage in bearing steels subjected to rolling contact fatigue is the formation of localised regions of white material just below the contact surface. These ‘white-etching regions’ are strikingly visible signs of damage during metallogra
Publikováno v:
Materials Science and Technology. 31:1011-1015
One form of damage due to rolling contact fatigue is the formation of localised regions of extremely hard material forming within the body of a bearing. These regions have a relatively homogeneous structure and hence etch mildly with respect to the s