نتایج جستجو برای: heat dissipation performance

تعداد نتایج: 1254883  

Journal: :The European physical journal. E, Soft matter 2013
Michela Degaetano Laurent Lacaze Jeremy C Phillips

We investigate experimentally the runout resulting from the collapse of a granular column containing two particle species that differ in size only. The experimental configuration is strictly two-dimensional (only one particle per width of the experimental tank) and we explore both the role of the initial arrangement and proportion of the two particle sizes in the column, using high-speed videog...

Journal: :Journal of the Society of Materials Science, Japan 1995

2008
MATTEO FOCARDI PAOLO MARIA MARIANO

For the linearized setting of the dynamics of complex bodies we construct variational integrators and prove their convergence by making use of BV estimates on the rate fields. We allow for peculiar substructural inertia and internal dissipation, all accounted for by a d’Alembert-Lagrange-type principle.

Journal: :Nano letters 2005
Yu-Chang Chen Michael Zwolak Massimiliano Di Ventra

Using first-principles approaches, we investigate local heating and the inelastic contribution to the current for various alkanethiols sandwiched between metal electrodes. In the absence of good heat dissipation into the bulk electrodes, we find that the local temperature of the alkanethiols is relatively insensitive to their length. This is due to the rates of heating and cooling processes sca...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Dan V Nicolau Mercy Lard Till Korten Falco C M J M van Delft Malin Persson Elina Bengtsson Alf Månsson Stefan Diez Heiner Linke Dan V Nicolau

The combinatorial nature of many important mathematical problems, including nondeterministic-polynomial-time (NP)-complete problems, places a severe limitation on the problem size that can be solved with conventional, sequentially operating electronic computers. There have been significant efforts in conceiving parallel-computation approaches in the past, for example: DNA computation, quantum c...

2016
Guolong Li Zhongzhou Ren Xin Zhang

We demonstrate that the phonon elastic scattering leads to a dominant dissipation in crystals at low temperature. The two-level systems (TLSs) should be responsible for the elastic scattering, whereas the dissipation induced by static-point defects (SPDs) can not be neglected. One purpose of this work is to show how the energy splitting distribution of the TLS ensemble affects the dissipation. ...

2011
Konstantinos Termentzidis Jayalakshmi Parasuraman Carolina Abs Da Cruz Samy Merabia Dan Angelescu Frédéric Marty Tarik Bourouina Xavier Kleber Patrice Chantrenne Philippe Basset

: We present a fabrication process of low-cost superlattices and simulations related with the heat dissipation on them. The influence of the interfacial roughness on the thermal conductivity of semiconductor/semiconductor superlattices was studied by equilibrium and non-equilibrium molecular dynamics and on the Kapitza resistance of superlattice's interfaces by equilibrium molecular dynamics. T...

1992
Albert Feldman Charles P. Beetz Michael Drory Sandor Holly

A workshop was held at NIST on February 27-28, 1992 to discuss specific topics deemed important to the characterization of diamond films made by chemical vapor deposition (CVD) and to address the need for standards in diamond technology. The workshop was held as a follow-up to a recommendation in a recent report assessing diamond technology in Japan [1]. The audience targeted for this workshop ...

Journal: :Physical review letters 2015
Jing-Tao Lü Rasmus B Christensen Jian-Sheng Wang Per Hedegård Mads Brandbyge

We investigate theoretically the interplay of current-induced forces (CIFs), Joule heating, and heat transport inside a current-carrying nanoconductor. We find that the CIFs, due to the electron-phonon coherence, can control the spatial heat dissipation in the conductor. This yields a significant asymmetric concentration of excess heating (hot spot) even for a symmetric conductor. When coupled ...

Journal: :Biochemical Society transactions 2001
J P Giacobino

The hypothesis that uncoupling protein 3 (UCP3) is an uncoupling protein involved in heat dissipation is not unequivocally supported. An update of in vitro, ex vivo and in vivo studies testing this hypothesis is presented. Data are provided showing that exercise induces a fatty acid-dependent increase in muscle UCP3 mRNA in humans. The proposed positive correlation between glycolytic capacity a...

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