Results 21 to 30 of about 5,426,083 (292)

Strain and crack development in continuous reinforced concrete slabs subjected to catenary action [PDF]

open access: yes, 2015
Several structural calamities in the second half of the 20th century have shown that adequate collapse-resistance cannot be achieved by designing the individual elements of a structure without taking their interconnectivity into consideration.
Caspeele, Robby   +2 more
core   +2 more sources

Classes de comprimento e descrição histológica das gônadas de Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) em um lago artificial, Morretes, Paraná, Brasil

open access: yesBiotemas, 2014
O objetivo deste estudo foi analisar a frequência por classes de comprimento e a organização histológica das gônadas de Diplodon ellipticus em um lago artificial localizado no município de Morretes-PR.
Ana Aparecida Nogueira Meyer   +3 more
doaj   +1 more source

Mixing Properties of CSMA Networks on Partite Graphs [PDF]

open access: yes, 2012
We consider a stylized stochastic model for a wireless CSMA network. Experimental results in prior studies indicate that the model provides remarkably accurate throughput estimates for IEEE 802.11 systems.
Borst, Sem C.   +2 more
core   +3 more sources

Variação do percentual de gordura frente a diferentes programas de intervenção para redução da gordura corporal

open access: yesCaderno de Educação Física e Esporte, 2000
Este objetivou verificar os efeitos de um programa multidisciplinar, na perda de tecido adiposo, para obesas com idade entre 25 e 50 anos, durante seis meses. Devido à mortalidade o grupo 1 ficou com 5; o gurpo 2 com 4 e o grupo 3 com 6 sujeitos.
Alberto Saturno Madureira   +6 more
doaj   +1 more source

Fibre composite railway sleeper design by using FE approach and optimization techniques [PDF]

open access: yes, 2012
This research work aims to develop an optimal design using Finite Element (FE) and Genetic Algorithm (GA) methods to replace the traditional concrete and timber material by a Synthetic Polyurethane fibre glass composite material in railway sleepers.
Awad, Ziad K., Yusaf, Talal
core   +1 more source

Implementation and performance evaluation of an inertial navigation system/global navigation satellite system real‐time kinematic Ntrip navigation system aided by a robot operating system‐based emulated odometer for high‐accuracy land vehicle navigation in urban environments

open access: yesEngineering Reports, 2020
Advanced land‐vehicle navigation commonly uses integrated systems to counteract global navigation satellite system (GNSS) solution degradation. This occurs mainly in urban environments due to blockage of the satellite signals.
Jorge P. M. Galdames   +4 more
doaj   +1 more source

Nucleosynthesis Predictions and High-Precision Deuterium Measurements

open access: yes, 2017
Two new high-precision measurements of the deuterium abundance from absorbers along the line of sight to the quasar PKS1937--1009 were presented. The absorbers have lower neutral hydrogen column densities (N(HI) $\approx$ 18\,cm$^{-2}$) than for previous
Jenssen, Espen Sem   +1 more
core   +2 more sources

Cofactor Fingerprinting with STD NMR to Characterize Proteins of Unknown Function: Identification of a Rare cCMP Cofactor Preference [PDF]

open access: yes, 2004
Proteomics efforts have created a need for better strategies to functionally categorize newly discovered proteins. To this end, we have employed saturation transfer difference NMR with pools of closely related cofactors, to determine cofactor preferences.
Sem, Daniel, Yao, Huili
core   +1 more source

Non-linear fire-resistance analysis of reinforced concrete beams [PDF]

open access: yes, 2003
The non-linear structural analysis of reinforced concrete beams in fire consists of three separate steps: (i) The estimation of the rise of surrounding air temperature due to fire; (ii) the determination of the distribution of the temperature within the ...
Bratina, Sebastjan   +3 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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