Претраживање
Приказ резултата 61-70 од 72
Otkrivanje obrtnih konuseva zadatih ravnim presekom po elipsi i pravcem ravni kružnog preseka
(Jugoslovensko udruženje za nacrtnu geometriju i inženjersku grafiku, 1997)
Neka je poznata proizvoljna elipsa e i položaj ravni P kružnog preseka konusa. Na pravoj p ravni P, koja prolazi centrom elipse, postoji cirkularna involucija.kojom su određeni kružni preseci čitavog pramena konuseva koji ...
The self-consistent electronic structure of spherical semiconductor quantum dots including bound and free states
(Solid State Communications, 1997)
A self-consistent procedure for calculating the energy structure, wave functions and charge distribution in spherically symmetric semiconductor quantum dots is presented, that takes account of both bound and free electron ...
Affine Conform Planes as the Special Cases of General Collinear Planes
(Cracow University of Technology, Cracow, 1996., 1996)
General collinear planes whose double straight line is at infinity are affine collinear planes.
Affine collinear planes whose double points of collocation on the infinitely distant double straight line are the absolute ...
Modeliranje abiotičkih i biotičkih procesa u akvatorijama vodoprivrednih sistema / Modeling of Abiotic and Biotic Processes in Water Storage Reservoirs
(Institut "Mihajlo Pupin", Beograd, 1998)
Radi praćenja procesa koji se odvijaju u akvatorijama vodoprivrednih sistema (akumulacijama, retenzijama) neophodno je modeliranje abiotičkih i biotičkih procesa kojima se prognoziraju akcije, reakcije i koakcije na relaciji ...
Influence of the self-consistent potential on absorption cross section in semiconductor quantum dot
(Solid State Phenomena, 1998)
In this paper the intersubband optical absorption cross sections are calculated for spherically symmetric semiconductor quantum dot (QD), made of GaAs-Al0.3Ga0.7As with the influence of the accumulated charge in the well ...
Intersubband resonant third harmonic generation in asymmetric semiconductor quantum wells
(Solid State Phenomena, 1998)
Possibilities for the systematic optimization of step-graded ternary alloys based quantum wells, in respect to third order nonlinear susceptibility ar resonance, are discussed. The use of this method is exemplified on the ...
Resonantly enhanced bound-continuum intersubband second harmonic generation in optimized asymmetric semiconductor quantum wells
(Physica E: Low-dimensional Systems and Nanostructures, 1999)
A systematic procedure applied to a step-asymmetric quantum well in order to maximize intersubband bound–continuum second-order susceptibility is described. The possibility is explored of obtaining resonantly enhanced ...
Preisach Model for Cyclic Bending of Elastoplastic Beams
(Elsevier, 1996)
In the present paper, the Preisach model, already successfully implemented for the problem of axially loaded members, has been extended to the cyclic bending of elasto-plastic beams. Starting from Hooke's and St. Venant's ...
GAMOD
(Građevinski fakultet, Univerziteta u Beogradu, 1994)
Softver (program) GAMOD namenjen je proračunu gubitaka vode usled infiltracije. Zasniva se na Grin-Emptovom nelinearnom modelu infiltracije.