نتایج جستجو برای: moments ratio diagram

تعداد نتایج: 593970  

2011
ROLF PETTERSSON Rolf Pettersson

Abstract. This paper considers the timeand space-dependent linear Boltzmann equation with general boundary conditions in the case of inelastic (granular) collisions. First, in the (angular) cut-off case, mild L1-solutions are constructed as limits of the iterate functions and boundedness of higher velocity moments are discussed in the case of inverse power collisions forces. Then the problem of...

2009
N. Mikuszeit L. Baraban

The magnetostatic interactions of colloidal particles, "capped" with radially magnetized ColPt multilayers, are modeled. Motivated by experiment the particles are arranged in microscopic two-dimensional clusters on a hexagonal lattice and are free to rotate. The thermodynamically stable states of clusters containing up to 108 particles are calculated theoretically by means of Monte Carlo simula...

1996
Yasuo Yoshida Yue Wu

This paper describes a classification method for rotated and scaled textured images using invariant parameters based on spectral-moments. Although it is well known that rotation invariants can be derived from moments of grey-level images, the use is limited to binary images because of its computational unstableness. In order to obtain computationally stable moments, we use power spectrum instea...

2001
P. T. Yap P. Raveendran

A new measure of image focus based on the discrete orthogonal Chebyshev moments is introduced. The lowand high-spatial-frequency components of an image can be represented as the lowand high-order Chebyshev moments, respectively. The focus measure is defined as the ratio of the norm of the high-order moments to that of low-order moments. It is shown that the focus measure is monotonic and unimod...

Journal: :Physical review letters 1987
Chau Cheng

Branching ratios and CP noninvariance of nonleptonic rare exclusive B decays without charm particles in the final state are studied. Decay channels, such as Bd K tt, K* p, B, K p, K p, Bd, K K,K* K,K K*,K* K, etc. , that can give direct evidence for the W-loop diagrams are pointed out. Some decay modes have large (tens of percent) CP noninvariance of partial-decay-rate diff'erences. Decays such...

Journal: :Dyna 2022

This paper proposes a simplified model of the propulsion system Planar Vertical Take-Off and Landing (DAVP) with disturbance to achieve DAVP, based on experimental data voltage angular velocity perform estimation forces, moments, rotors current, analyze power efficiency results. The DAVP are acquired an Arduino® board at Matlab®/Simulink. block diagram simulation results obtained showed effecti...

2004
Philipp Werner Matthias Troyer Subir Sachdev

We use Monte Carlo simulations to study chains of Isingand XY-spins with dissipation coupling to the site variables. The phase diagram and critical exponents of the dissipative Ising chain in a transverse magnetic field have been computed previously, and here we consider a universal ratio of susceptibilities. We furthermore present the phase diagram and exponents of the dissipative XY-chain, wh...

Journal: :journal of mining and environment 0
m. nikkhah school of mining, petroleum & geophysics engineering, shahrood university of technology, shahrood, iran seyed s. mousavi school of mining, petroleum & geophysics engineering, shahrood university of technology, shahrood, iran sh. zare school of mining, petroleum & geophysics engineering, shahrood university of technology, shahrood, iran o. khademhosseini school of civil engineering, shahrood university of technology, shahrood, iran

the joints between segmental rings can withstand a certain amount of bending moment as well as axial and shear forces. generally, in the structural analysis of tunnel segmental lining, the joints can be modeled as elastic hinges or rotational springs, and their rigidity should be demonstrated in terms of the rigidity of the joints or their rotational stiffness. therefore, the bending moment act...

Journal: :Physics of Fluids 2022

This study aims at analytically and numerically exploring the influence of combustion-induced thermal expansion on turbulence in premixed flames. In theoretical part, contributions solenoidal potential velocity fluctuations to unclosed component advection term Reynolds-averaged Navier–Stokes equations are compared, a new criterion for assessing importance effects is introduced. The highlights r...

Journal: :The Journal of chemical physics 2005
Elisabeth Schöll-Paschinger Gerhard Kahl

We have identified a fourth archetype of phase diagram in binary symmetrical mixtures, which is encountered when the ratio of the interaction between the unlike and the like particles is sufficiently small. This type of phase diagram is characterized by the fact that the lambda line (i.e., the line of the second-order demixing transition) intersects the first-order liquid-vapor curve at densiti...

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