Results 21 to 30 of about 22,816 (264)

Stress Concentrations in Weak Snowpack Layers and Conditions for Slab Avalanche Release

Geophysical Research Letters, 2018
Dry‐snow slab avalanches release due to the formation of a crack in a weak layer buried below cohesive snow slabs, followed by rapid crack propagation.
J. Gaume, G. Chambon, A. van Herwijnen, J. Schweizer   +3 more
doaj   +1 more source

PRELIMINARY REPORT OF CRITICAL EXPERIMENTS IN SLAB GEOMETRY [PDF]

, 1956
The critical parameters of aqueous UO/sub 2/F/sub 2/ solutions enriched to 90% U/sup 235/ in various arrays of interacting slab geometries have been determined for a single concentration. Critical solution heights for various configurations of three nominally 3-in. thick Al slab vessels and one 6-in. Al slab vessel were determined. (T.R.H.)
Fox, J. K., Gilley, L. W.
openaire   +2 more sources

Experiments on flexural behavior of the prefabricated RAC and NWC composite slab

Ain Shams Engineering Journal, 2022
The development of prefabricated buildings is a long-term industrial policy in China. In the prefabricated frame structure, the slab is one of the critical components. However, two kinds of famous prefabricated slabs in China need the template system and
Linfeng Lu, Ming Gao, Yan Guo, Wei Wang, Hongwei Yan, Taisheng Jiang   +5 more
doaj   +1 more source

Optimization of Structure Parameters of Airfield Jointed Concrete Pavements under Temperature Gradient and Aircraft Loads

Advances in Materials Science and Engineering, 2019
Daily changing temperature causes significant thermal stress in concrete pavement. Tensile stress obtained can exceed flexural tensile strength when the concrete slabs are subjected to large temperature gradient and traffic loads, resulting in pavement ...
Bangshu Xu, Wanzhi Zhang, Jie Mei, Guangyao Yue, Laihua Yang   +4 more
doaj   +1 more source

Supershear crack propagation in snow slab avalanche release: new insights from numerical simulations and field measurements [PDF]

Natural Hazards and Earth System Sciences
The release process of dry-snow slab avalanches begins with a localized failure within a porous, weak snow layer beneath a cohesive slab. Subsequently, rapid crack propagation may occur within the weak layer, eventually leading to a tensile fracture ...
G. Bobillier, G. Bobillier, B. Trottet, B. Bergfeld, R. Simenhois, A. van Herwijnen, J. Schweizer, J. Gaume, J. Gaume, J. Gaume   +9 more
doaj   +1 more source

Design considerations on the influence of slab continuity on punching resistance of flat slabs

Revista IBRACON de Estruturas e Materiais, 2020
: This paper assesses the influence of slab continuity on the punching resistance of a realistically proportioned flat slab floor plate without shear reinforcement.
Fernanda Gabriella Batista Santos Oliveira, Luis Fernando Sampaio Soares, Robert Lars Vollum   +2 more
doaj   +1 more source

Dynamic response of concrete pavement structure with asphalt isolating layer under moving loads

Journal of Traffic and Transportation Engineering (English ed. Online), 2014
A three-dimensional finite element model (3D FEM) is built using ABAQUS to analyze the dynamic response of a concrete pavement structure with an asphalt isolating layer under moving loads. The 3D model is prepared and validated in the state of no asphalt
Jianmin Wu, Jiaping Liang, Sanjeev Adhikari   +2 more
doaj   +1 more source

A STUDY ON THE WHEELSET/SLAB TRACK VERTICAL INTERACTION [PDF]

Fiabilitate şi Durabilitate, 2012
This paper deals with the interaction between a moving wheelset and a slab track due to the short-pitch corrugated rail. The wheelset is modeled using a free-free Timoshenko beam with attached rigid bodies as the axle boxes, wheels and brake discs.
Traian MAZILU
doaj  

Wave Propagation in Dielectric Slab Waveguide with two Different Cladding Materials. [PDF]

مجلة جامعة الانبار للعلوم الصرفة, 2013
In this study the Ku ــband microwave with a frequencies of (12- 18) GHz propagation in dielectric materials InGaAsP( refractive index n1=3.39) with two different claddings, air(n2=1) and polyacrylate(n2=1.5) , was investigated.
Ahmad Hameed, Nabeil I.Fawaz
doaj   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source