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Electron momentum density and Compton profile by a semi-empirical approach
(Elsevier, 2015-03)
Here we propose a semi-empirical approach to describe with good accuracy the electron momentum densities and Compton profiles for a wide range of pure crystalline metals. In the present approach, we use an experimental ...
A study of the relationships between unpaired electron density, spin-density and cumulant matrices
(Springer, 2011-02)
This work describes the derivation of simple relationships between the density matrix of effectively unpaired electrons and the spin-density matrix in N-electron systems. The link between both devices turns out to be the ...
Relation between recruitment and the density-independent mortality of the Pacific sardine (Sardinops caeruleus) off the western coast of Southern of the Peninsula de California, Mexico
(Scientia Marina, 2003)
The density-independent mortality, considered in the stock-recruitment model of Ricker, was related to the interannual variability of the sea surface temperature (SST) during 1981 to 1993 in Bahía Magdalena, Baja California ...
Practice of martial arts and bone mineral density in adolescents of both sexes
(2016-06-01)
Objective The purpose of this study was to analyze the relationship between martial arts practice (judo, karate and kung-fu) and bone mineral density in adolescents. Methods The study was composed of 138 (48 martial arts ...
The Correlation between the NBTI Effect and the Surface Potential and Density of Interface Traps in Junctionless Nanowire Transistors
(2020-07-31)
This paper discusses the nature of degradation by NBTI effect in MOS junctionless devices when varying the density of interface traps and surface potential. The data obtained in simulations are compared with results from ...
Equilibrium topology for plasmas with reversed current density.
(European Physical SocietyEspoo, 2013-07-01)
Actually, transition from positive to negative plasma current and quasi-steady-state alternated
current (AC) operation have been achieved experimentally without loss of ionization. The
large transition times suggest the ...
Scattering of E. M. waves from dielectric density fluctuations
(1984-01)
Radars are used for remota probing of the upper atmosphere. Monstatic and bistatic configurations have been used. The echoes are obtained from the scattering of the illuminating wave by fluctuations in the dielectric ...
Seasonal variation in the density of the macrophyte Scirpus cubensis Poepp & Kunth (Cyperaceae) in the Lagoa do Infernão, state of São Paulo, Brazil
(1996-12-01)
This paper deals with the seasonal density dynamics of the macrophyte Scirpus cubensis Poepp & Kunth (Cyperaceae) in the Lagoa do Infernão, a lake marginal to the Mogi-Guaçu river, State of São Paulo, Brazil. Seasonal ...
Automatic estimation of crowd density using texture
(Elsevier B.V., 1998-04-01)
This paper considers the role of automatic estimation of crowd density and its importance for the automatic monitoring of areas where crowds are expected to be present. A new technique is proposed which is able to estimate ...
The significance and determination by image analysis of microcrack density in hard chromium plating
(2008-04-01)
It is well known that the microcrack density is a fundamental parameter in hard chromium electroplating. The chemical and mechanical properties of this coating are widely dependent on its microcrack density. In this paper ...