Results 21 to 30 of about 3,413,512 (272)

Evaluation of train-induced vibrations in medium-to-high speed railways: a parametric study

open access: yesFrontiers in Built Environment
Over the past 2 decades, China has witnessed remarkable advancements in rail transportation systems, encompassing municipal railways, intercity networks, and high-speed rail infrastructure.
Xiao Guo   +6 more
doaj   +1 more source

Distance Critical Graphs

open access: yesGraphs and Combinatorics
Abstract In 1971, Graham and Pollak provided a formula for the determinant of the distance matrix of any tree on n vertices. Yan and Yeh reproved this by exploiting the fact that pendant vertices can be deleted from trees without changing the remaining entries of the distance matrix.
Joshua Cooper, Gabrielle Tauscheck
openaire   +2 more sources

The ecclesiastical crisis of human sexuality: ‘Critical solidarity’, ‘critical distance’ or ‘critical engagement’

open access: yesHTS Teologiese Studies/Theological Studies
The issue of human sexuality has many negative implications in African society. These arose in a number of contexts – legal, religious, cultural and societal – and were significantly divisive.
Graham A. Duncan
doaj   +1 more source

Critical Casimir effect for colloids close to chemically patterned substrates

open access: yes, 2010
Colloids immersed in a critical or near-critical binary liquid mixture and close to a chemically patterned substrate are subject to normal and lateral critical Casimir forces of dominating strength.
Dietrich, S.   +4 more
core   +1 more source

String breaking in QCD: dual superconductor vs. stochastic vacuum model [PDF]

open access: yes, 2005
Effects of dispersion of the chromoelectric field of the flux tube on the string-breaking distance are studied. The leading-order correction is shown to slightly diminish the result following from the Schwinger formula.
Antonov, D., Di Giacomo, A.
core   +2 more sources

Spatial competition on the master-saliency map.

open access: yesFrontiers in Psychology, 2013
The saliency map model (Itti & Koch, 2000) is a hierarchically structured computational model, simulating visual saliency processing. Iso-feature processing on feature maps and conspicuity maps precedes cross-dimensional signal processing on the ...
Ursula eSchade, Cristina eMeinecke
doaj   +1 more source

Notch Fatigue Life Research Based on Critical Distance Theory

open access: yesApplied Sciences, 2023
Orthotropic anisotropic steel bridge panels are widely used in civil engineering due to their advantages of light deadweight, high ultimate bearing capacity, and wide range of applications.
Jifa Chen   +4 more
doaj   +1 more source

Parametric study on the effect of anchor�s geometry on the stress distribution and crack initiation direction in a concrete body

open access: yesFracture and Structural Integrity
This work deals with investigations of the stress field distribution around a steel anchor embedded in a concrete. Tensile loading - pulling force of the steel anchor is considered, which is very often connected to concrete cone failure.
Lucie Mal�kov�, Petr Miarka
doaj   +1 more source

Target Localization via Integrated and Segregated Ranging Based on RSS and TOA Measurements

open access: yesSensors, 2019
This work addresses the problem of target localization in adverse non-line-of-sight (NLOS) environments by using received signal strength (RSS) and time of arrival (TOA) measurements.
Slavisa Tomic, Marko Beko
doaj   +1 more source

Interfacial fluctuations near the critical filling transition

open access: yes, 2000
We propose a method to describe the short-distance behavior of an interface fluctuating in the presence of the wedge-shaped substrate near the critical filling transition.
A. Bednorz   +17 more
core   +1 more source

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