Results 41 to 50 of about 389,998 (315)

Theoretical justification of reliability of threaded connections of cars during operation

open access: yesИнтеллект. Инновации. Инвестиции, 2020
The reliability of threaded connections is determined by the strength of their tightening, which, in particular, depends on the presence of defects and impurities in the material structure of the mated parts. In the case of intense vibrations, vibrations
Yu. V. Rodionov   +2 more
doaj   +1 more source

Real-Time Dynamics of an Impurity in an Ideal Bose Gas in a Trap [PDF]

open access: yes, 2015
We investigate the behavior of a harmonically trapped system consisting of an impurity in a dilute ideal Bose gas after the boson-impurity interaction is suddenly switched on.
A. Volosniev, H. Hammer, N. Zinner
semanticscholar   +1 more source

Quantum dynamics of a mobile spin impurity [PDF]

open access: yesNature Physics, 2012
One of the elementary processes in quantum magnetism is the propagation of spin excitations. Here we study the quantum dynamics of a deterministically created spin-impurity atom, as it propagates in a one-dimensional lattice system.
T. Fukuhara   +11 more
semanticscholar   +1 more source

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 Ion Complexation Enhances Carbon Dioxide Reduction Catalysis

open access: yes, 2015
Herein, we show that group 11 CO2 reduction catalysts are rapidly poisoned by progressive deposition of trace metal ion impurities present in high purity electrolytes.
Anna Wuttig, Y. Surendranath
semanticscholar   +1 more source

Graphene Systems: Methods of Fabrication and Treatment, Structure Formation, and Functional Properties

open access: yesУспехи физики металлов, 2010
The literary data on the structure, basic methods of fabrication and treatment as well as physical properties of graphene, including a doped one, which enable use of it as a functional nanomaterial, are reviewed.
I. Yu. Sagalyanov   +3 more
doaj   +1 more source

Theoretical description of heavy impurity transport and its application to the modelling of tungsten in JET and ASDEX upgrade [PDF]

open access: yes, 2014
The effects of poloidal asymmetries and heated minority species are shown to be necessary to accurately describe heavy impurity transport in present experiments in JET and ASDEX Upgrade. Plasma rotation, or any small background electrostatic field in the
F. Casson   +15 more
semanticscholar   +1 more source

On the universality of inversion layer mobility in Si MOSFET's: Part I-effects of substrate impurity concentration

open access: yes, 1994
This paper reports the studies of the inversion layer mobility in n- and p-channel Si MOSFET's with a wide range of substrate impurity concentrations (10/sup 15/ to 10/sup 18/ cm/sup -3/).
S. Takagi   +3 more
semanticscholar   +1 more source

Nitrosodimethylamine impurities in metformin drug products: Physician insight

open access: yesJournal of Diabetology, 2021
Metformin is a high-dose antidiabetic drug and most widely used first-line therapeutic agent for the management of type 2 diabetes mellitus (T2DM).
Chetan Doshi   +4 more
doaj   +1 more source

GDP‐fucose transporter SLC35C1: a potential regulatory role in cytosolic GDP‐fucose and fucosylated glycan synthesis

open access: yesFEBS Open Bio, EarlyView.
The inactivation of SLC35C1 (GDP‐fucose transporter) and enzymes involved in GDP‐fucose biosynthesis was studied. Fucose supplementation increases the level of GDP‐fucose to abnormal, millimolar values in the absence of the TSTA3 protein and SLC35C1 in contrast to the GMDS/SLC35C1 double mutant.
Edyta Skurska, Mariusz Olczak
wiley   +1 more source

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