Results 31 to 40 of about 922,036 (272)

A percolation-based micromechanical model for elastic stiffness and conductivity of foam concrete

open access: yesFrontiers in Physics, 2023
Void morphology effect on percolation and even physico-mechanical performance of foam concrete is of great interest in the evaluation of service-life of civil and hydraulic infrastructures.
Fengjuan Wang   +4 more
doaj   +1 more source

Statistical Geometry of Packing Defects of Lattice Chain Polymer from Enumeration and Sequential Monte Carlo Method [PDF]

open access: yes, 2002
Voids exist in proteins as packing defects and are often associated with protein functions. We study the statistical geometry of voids in two-dimensional lattice chain polymers.
Jie Liang   +4 more
core   +2 more sources

Generation of Porous Particle Structures using the Void Expansion Method

open access: yes, 2008
The newly developed "void expansion method" allows for an efficient generation of porous packings of spherical particles over a wide range of volume fractions using the discrete element method. Particles are randomly placed under addition of much smaller
A.S. Clarke   +21 more
core   +2 more sources

Fill the void: improved scheduling for optical switching [PDF]

open access: yes, 2015
With ever-increasing demand for bandwidth, optical packet/burst switching is proposed to utilize more of the available capacity of optical networks in the future.
Bruneel, Herwig   +2 more
core   +1 more source

Void Scaling and Void Profiles in CDM Models

open access: yes, 2001
An analysis of voids using cosmological N-body simulations of cold dark matter models is presented. It employs a robust statistics of voids, that was recently applied to discriminate between data from the Las Campanas Redshift Survey and different ...
Jaffe, S. Arbabi-Bidgoli, V. Muller
core   +1 more source

Scrivimi ancora, arrivederci. Roma Correu

open access: yesRi-vista: Ricerche per la Progettazione del Paesaggio, 2021
Reading Roma Correu is a surprise and a gift, it allows us to resume the thread of an interrupted correspondence, reconciles and instigates us to recover and reinvent our role as actors on that great theater that is the landscape.
Ludovica Marinaro
doaj   +1 more source

First measurement of gravitational lensing by cosmic voids in SDSS

open access: yes, 2014
We report the first measurement of the diminutive lensing signal arising from matter underdensities associated with cosmic voids. While undetectable individually, by stacking the weak gravitational shear estimates around 901 voids detected in SDSS DR7 by
Krause, Elisabeth   +4 more
core   +2 more sources

Partial discharges in spheroidal voids. Void orientation [PDF]

open access: yesIEEE Transactions on Dielectrics and Electrical Insulation, 1997
Partial discharge transients can be described in terms of the charge induced on the detecting electrode. The influence of the void parameters upon the induced charge is examined and discussed for spheroidal voids. It is shown that a quantitative interpretation of the induced charge requires a knowledge not only of the void location, geometry and ...
openaire   +2 more sources

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser   +6 more
wiley   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

open access: yesFEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer   +7 more
wiley   +1 more source

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