Results 31 to 40 of about 389,998 (315)

Impurity in a Bose-Einstein condensate: Study of the attractive and repulsive branch using quantum Monte Carlo methods [PDF]

open access: yes, 2015
We investigate the properties of an impurity immersed in a dilute Bose gas at zero temperature using quantum Monte-Carlo methods. The interactions between bosons are modeled by a hard sphere potential with scattering length $a$, whereas the interactions ...
L. A. P. Ardila, S. Giorgini
semanticscholar   +1 more source

Space Charge Behavior in Ethylene Propylene Rubber Under a 50-Hz AC Electric Field

open access: yesIEEE Access, 2019
In this study, the space charge behavior in ethylene propylene rubber (EPR) under a 50-Hz AC field is studied based on the variation of space charge response, FTIR spectra and impurity contents inside EPR with thermal treatment.
Chang Dai   +4 more
doaj   +1 more source

Comparison of the Purity and Impurity of Glucagon-for-Injection Products under Various Stability Conditions

open access: yesScientia Pharmaceutica, 2022
Glucagon is a polypeptide hormone that serves as an essential therapeutic agent in the emergency treatment of hypoglycemia. Recently, the first generic glucagon for injection was approved. However, unlike its brand name counterpart, which is produced via
Zhongli Bao   +3 more
doaj   +1 more source

Impurity-bound states and Green's function zeros as local signatures of topology [PDF]

open access: yes, 2015
We show that the local in-gap Green's function of a band insulator ${\mathbf{G}}_{0}(\ensuremath{\epsilon},{\mathbf{k}}_{\ensuremath{\parallel}},{\mathbf{r}}_{\ensuremath{\perp}}=0)$, with ${\mathbf{r}}_{\ensuremath{\perp}}$ the position perpendicular to
Robert-Jan Slager   +3 more
semanticscholar   +1 more source

Influence of Degassing Treatment on the Ink Properties and Performance of Proton Exchange Membrane Fuel Cells

open access: yesMembranes, 2022
Degradation occurs in catalyst inks because of the catalytic oxidation of the solvent. Identification of the generation process of impurities and their effects on the properties of HSC ink and LSC ink is crucial in mitigating them.
Pengcheng Liu   +4 more
doaj   +1 more source

Mesoscopic Rydberg Impurity in an Atomic Quantum Gas. [PDF]

open access: yesPhysical Review Letters, 2015
Giant impurity excitations are powerful probes for exploring new regimes of far out of equilibrium dynamics in few- and many-body quantum systems, and in situ observations of correlations.
R. Schmidt, H. Sadeghpour, E. Demler
semanticscholar   +1 more source

Bound States in Boson Impurity Models [PDF]

open access: yes, 2015
The formation of bound states involving multiple particles underlies many interesting quantum physical phenomena, such as Efimov physics or superconductivity. In this work we show the existence of an infinite number of such states for some boson impurity
T. Shi   +3 more
semanticscholar   +1 more source

Two-beam laser purification of quartz raw material

open access: yesDoklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2021
The paper presents a numerical simulation of laser separation under the influence of laser beams with wavelengths  of  10.6  microns  and  1.06  microns  on  quartz  raw  material  used  in  the  electronics  industry in  the  manufacture  of  photomasks.
V. A. Emelyanov   +2 more
doaj   +1 more source

Editors' Choice—Growth of Ambient Induced Surface Impurity Species on Layered Positive Electrode Materials and Impact on Electrochemical Performance

open access: yes, 2017
Surface impurity species, most notably Li 2 CO 3 , that develop on layered oxide positive electrode materials with atmospheric aging have been reported to be highly detrimental to the subsequent electrochemical performance.
N. Faenza   +6 more
semanticscholar   +1 more source

Research Progress on Light Elements (C, N, O) in Solar-grade Silicon

open access: yesCailiao gongcheng, 2017
The presence of light elements like C, N, O has wide influence on the properties of solar-grade silicon. Since silicon is the dominating raw material of solar cells, the purity of crystalline silicon has significant influence on electrical properties of ...
TAN Yi   +5 more
doaj   +1 more source

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