Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Jevgenijs Kaupužs"'
Autor:
Liga Grase, Denys Ihorovych Kurbatov, Jevgenijs Kaupužs, J. Vecstaudža, Arturs Medvids, A. Shamardin
Publikováno v:
Applied Surface Science. 488:827-835
In this work, thin films of Cu2ZnSnS4 (CZTS) were grown by spray-pyrolysis method and were irradiated by pulsed Nd: YAG laser. Their morphological, chemical, structural and substructural characteristics were investigated using AFM, SEM, EDS, XRD and
Publikováno v:
Optics & Laser Technology. 111:121-128
Electrical and optical properties of hydrothermally grown ZnO crystal, as well as structural changes at its surface have been investigated before and after irradiation by pulsed Nd:YAG laser. The spreading resistance measurements have shown a monoton
Publikováno v:
Physical review E
Airlines use different boarding policies to organize the queue of passengers waiting to enter the airplane. We analyze three policies in the many-passenger limit by a geometric representation of the queue position and row designation of each passenge
Publikováno v:
Physical review. E
We study airplane boarding in the limit of large number of passengers using geometric optics in a Lorentzian metric. The airplane boarding problem is naturally embedded in a 1+1 dimensional space-time with a flat Lorentzian metric. The duration of th
Publikováno v:
Traffic and Granular Flow '17 ISBN: 9783030114398
A simple airplane-boarding model, introduced earlier by Frette and Hemmer, is considered. In this model, N passengers have reserved seats, but enter the airplane in arbitrary order. We are looking for an analytical expression, which describes the mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f1b96b16e8642d4fb00a6c681b9cdc9
https://doi.org/10.1007/978-3-030-11440-4_45
https://doi.org/10.1007/978-3-030-11440-4_45
Autor:
Jevgenijs Kaupužs, Roderick Melnik
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 53:415002
The known approximation schemes for the solution of the Wetterich exact renormalization group (RG) equation are critically reconsidered, and a new truncation scheme is proposed. In particular, the equations of the derivative expansion up to the ∂2
Publikováno v:
Optics & Laser Technology. 119:105630
Colossally increased laser ablation threshold intensity Ith = 637.0 MW/cm2 of mechanically polished Ge crystal was found. It exceeds by factor of 100 that of chemically etched Ge single crystal (1 0 0), which is about 6.0 MW/cm2. This phenomenon is r
Autor:
Jevgenijs Kaupužs, Roderick Melnik
Publikováno v:
Springer Proceedings in Mathematics & Statistics ISBN: 9783319765983
Non-perturbative approaches in nanoscience are discussed. Traditional applications of these approaches cover description of charge transport and optical phenomena in nano-scale systems. We focus on finite-size effects in spin systems near the critica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa3671d54e8f3f406a243c9ac7816ede
https://doi.org/10.1007/978-3-319-76599-0_4
https://doi.org/10.1007/978-3-319-76599-0_4
Autor:
Jevgenijs Kaupužs, A. Medvid
Publikováno v:
Advanced Materials Research. 1117:114-117
The photo current-voltage characteristic of a solar cell with graded band gap is calculated numerically based on the drift-diffusion equation and Poisson equation. The calculated efficiency of the CdTe solar cell with p-n junction located in 1μm dep
Publikováno v:
Communications in Computational Physics. 15:1407-1430
Correlation functions in the O(n) models below the critical temperature are considered. Based on Monte Carlo (MC) data, we confirm the fact stated earlier by Engels and Vogt, that the transverse two-plane correlation function of the O(4) model for la