نتایج جستجو برای: length scale effect

تعداد نتایج: 2394394  

Journal: :Modelling and Simulation in Materials Science and Engineering 2011

The vibration analysis is an important step in the design and optimization of microsensors. In most of the cases, COMSOL software is employed to consider the size-dependency on the dynamic behavior in the MEMS sensors. In this paper, the Modified Couple Stress Theory (MCST) is used to capture the size effect on dynamic behavior in a microsensor with two layers of the silicon and piezoelectric. ...

Journal: :علوم و تکنولوژی پلیمر 0
محمد نجفی حسین روغنی ممقانی مهدی سلامی کلجاهی وحید حدادی اصل

styrene polymerization through frp and atrp methods was carried out at 110oc, while in-depth studies were performed by monte carlo simulation.the changes in monomer conversion, initiator concentration, average molecular weight, and polydispersity index were computed over the course of the polymerization. as the results indicate, compared to atrp, the frp reaches higher conversion in a similar r...

1997
H. Arodź

which describes a static, planar domain wall stretched along the x = 0 plane. Here Φ0 = M/(2 √ λ) denotes one of the two vacuum values of the field Φ — the other one is equal to −Φ0. The parameter M can be identified with the mass of the scalar particle related to the field Φ. The corresponding Compton length l0 = M −1 gives the physical length scale in the model. Energy density for the planar ...

2007
Willem A. Baan Yoshiaki Hagiwara Peter Hofner

VLA observations of large-scale HI and OH absorption in the merging galaxy of NGC6240 are presented with 1 arcsec resolution. HI absorption is found across large areas of the extended radio continuum structure with a strong concentration towards the double-nucleus. The OH absorption is confined to the nuclear region. The HI and OH observations identify fractions of the gas disks of the two gala...

2012
Lauri Sikanen Teemu Vilppo

The primary objective of this study was to observe the effect of pellet length on utility and combustion temperature. Pellets with various lengths were combusted in a pellet stove. Pellet length was found to have a significant effect on the combustion temperature and stability. Increasing the length of pellets from 5.8mm to 13.1mm decreased the average burning temperature by 31% and flue gas te...

2003
A. Schiavi R. Snavely

The influence of plasma density scalelength on the production of MeV protons from thin foil targets irradiated at Iλ = 5x10Wcm has been studied. With an unperturbed foil, protons with energy > 20MeV were formed in exponential energy spectrum with a temperature 2.5± 0.3 MeV. When a plasma with a scalelength of 100μm was preformed on the back of the foil the maximum proton energy was reduced to <...

2004
Agata Fronczak Piotr Fronczak

Analytic solution for the average path length in a large class of uncorrelated random networks with hidden variables is found. We apply the approach to classical random graphs of Erdös and Rényi (ER), evolving networks introduced by Barabási and Albert as well as random networks with asymptotic scale-free connectivity distributions characterized by an arbitrary scaling exponent α > 2. Our resul...

2007
C. DENKER

The Big Bear Solar Observatory (BBSO) has a long tradition of are observations. In this letter, we would like to direct the reader's attention to observations of a small-spot which produced a moderate are activity characterized by 18 C-class and 2 M-class ares. Active region NOAA 8076 (BBSO 3877) was one of the rst active regions in the new Solar Cycle No. 23. We present high spatial resolution...

Journal: :Physical review letters 2013
Chiara Cammarota Giacomo Gradenigo Giulio Biroli

We study the effect of confinement on glassy liquids using random first order transition theory as a framework. We show that the characteristic length scale above which confinement effects become negligible is related to the point-to-set length scale introduced to measure the spatial extent of amorphous order in supercooled liquids. By confining below this characteristic size, the system become...

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