Results 21 to 30 of about 373,780 (293)

On mechanisms of impurity leakage and retention in the tokamak divertor

open access: yesPlasma Physics and Controlled Fusion, 2019
Impurity seeding into a tokamak divertor for radiative cooling is considered as a tool for achieving detached/semi-detached regimes required to meet the condition of acceptable heat loads on divertor plates.
I. Senichenkov   +8 more
semanticscholar   +1 more source

Analysis of various implementations of hop strings during hop production

open access: yesPlant, Soil and Environment, 2011
Hop purchasers impose still higher requirements on the quality of the final product, which is why hop granules have to be divested of all possible impurities.
A. Rybka   +4 more
doaj   +1 more source

Optimization of Parameters of Two-Beam Laser Twelding of Quartz Raw Materials

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2023
In the work, with the help of numerical simulation, the values of technological parameters are established, which provide effective two-beam laser cleaning of quartz raw materials.
V. A. Emelyanov   +4 more
doaj   +1 more source

Impurities in UBe 13

open access: yesJournal of Magnetism and Magnetic Materials, 1987
Des impuretes de gadolinium dans UBe 13 abaissent la temperature de transition supraconductrice avec un taux initial de −0,40 K/% tandis que pour Th 0,029 U 0,971 Be 13 , le taux initial est seulement −0,19 K/%. Ceci suggere l'existence de deux etats supraconducteurs differents.
Smith, JL   +6 more
openaire   +3 more sources

Numerical renormalization group method for quantum impurity systems [PDF]

open access: yes, 2007
In the early 1970s, Wilson developed the concept of a fully nonperturbative renormalization group transformation. When applied to the Kondo problem, this numerical renormalization group (NRG) method gave for the first time the full crossover from the ...
R. Bulla, T. Costi, T. Pruschke
semanticscholar   +1 more source

Impurity in a Bose-Einstein Condensate and the Efimov Effect. [PDF]

open access: yesPhysical Review Letters, 2015
We investigate the zero-temperature properties of an impurity particle interacting with a Bose-Einstein condensate (BEC), using a variational wave function that includes up to two Bogoliubov excitations of the BEC.
J. Levinsen, M. Parish, G. Bruun
semanticscholar   +1 more source

Effect of the Ketoprofen Distribution in Cream-gels on the Formation of the Impurities

open access: yesРазработка и регистрация лекарственных средств, 2019
Introduction. The fixed combination of ketoprofen, methyl salicylate and levomenthol in the form of a cream-gel is rational. Ketoprofen forms salts with bases and esters with substances containing hydroxyl groups.
N. A. Lyapunov   +3 more
doaj   +1 more source

Numerical Simulation of Carbon Dioxide–Nitrogen Mixture Dissolution in Water-Saturated Porous Media: Considering Cross-Diffusion Effects

open access: yesFluids, 2023
The possibility of impure carbon dioxide (CO2) sequestration can reduce the cost of these projects and facilitate their widespread adoption. Despite this, there are a limited number of studies that address impure CO2 sequestration aspects. In this study,
Saeed Mahmoodpour   +4 more
doaj   +1 more source

Quasiparticle Properties of a Mobile Impurity in a Bose-Einstein Condensate. [PDF]

open access: yesPhysical Review Letters, 2015
We develop a systematic perturbation theory for the quasiparticle properties of a single impurity immersed in a Bose-Einstein condensate. Analytical results are derived for the impurity energy, effective mass, and residue to third order in the impurity ...
Rasmus S. Christensen   +2 more
semanticscholar   +1 more source

Impurity Properties of Inversion Layers with Electronic and Substrate Quantum Screening

open access: yesCrystals, 2023
In this paper, the combined effect of electronic and substrate screening on impurity states in inversion layers is investigated theoretically. An explicit expression of the screened impurity interaction potential with an effective screening parameter ...
Kamo Aharonyan   +2 more
doaj   +1 more source

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