نتایج جستجو برای: density distribution

تعداد نتایج: 974041  

Journal: :Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine 1971
M F Stinski J Gruber

1998
B. L. N. Kennett

The distribution of density as a function of position within the Earth is much less well constrained than the seismic velocities. The primary information comes from the mass and moment of inertia of the Earth and this information alone requires that there be a concentration of mass towards the centre of the globe. Additional information is to be found in the frequencies of the graver normal mod...

2013
Douglas Jay Klein Jacek Karwowski

The distribution of the density of mass in several simple model systems is analyzed. In particular, the relation between the localization of a particle and its mass is studied in detail. The dependence of the function describing mass density distribution on the choice of the reference point and, in this context, the process of emerging the molecular shape as a function of masses of the constitu...

2003
Maria Georgiadou

A numerical method was developed for predicting current density distribution in electrochemical systems of several species at steady-state. The fundamental transport equation consisted a partial differential equation (PDE) involving linear terms of diffusion and laminar convection, and nonlinear terms of ionic migration. The boundary conditions (BCs) consisted also PDEs including flux condition...

2002
R.W.N. Nilen S. H. Connell

We have measured the momentum distribution of the electron-positron annihilating pair in diamond as a function of crystallographic orientation, using the Doppler broadening technique of positron annihilation spectroscopy. A 1% variation in the longitudinal projection of the momentum distribution was observed as the sample was rotated about the (110) axis. This anisotropic distribution shows an ...

2002
V. A. LUBARDA D. KRAJCINOVIC

Abstract-The paper presents an algorithm for the derivation of damage tensors emphasizing its relationship with the actual and approximate crack density distributions. The proposed model is illustrated using scalar, second and fourth order continuous tensor approximations of some typical two and three dimensional crack distributions. It is also shown that the occurrence of regions with negative...

1999
Chong Gu

This article extends recent developments in penalized likelihood probability density estimation to the estimation of conditional densities on generic domains. Positivity and unity constraints for a probability density are enforced through a one-to-one logistic conditional density transform made possible by term trimming in an ANOVA decomposition of multivariate functions. The construction of mo...

2000
Yashwant K. Malaiya Jason Denton

Data from several projects show a significant relationship between the size of a module and its defect density. Here we address implications of this observation. Does the overall defect density of a software project vary with its module size distribution? Even more interesting is the questioncan we exploit this dependence to reduce the total number of defects? We examine the available data sets...

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