Results 171 to 180 of about 2,124,150 (351)

Semi‐analytical solution for the stability of deep vertical shaft considering time‐dependent rock‐structure interaction

open access: yesDeep Underground Science and Engineering, EarlyView.
A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen   +5 more
wiley   +1 more source

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

open access: yesDeep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei   +4 more
wiley   +1 more source

Cost-push impact of motor spirit price on price indices and inflation [PDF]

open access: yes
Any increment in the prices of goods or services generally leads to an increase in different products prices indices and inflation. This paper examines the cost-push impact of a motor spirit price increment in Iran on different products prices indices ...
M. Alejandro Cardenete   +1 more
core  

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Social Comparison and Its Association With Disordered Eating Symptoms: A Systematic Review and Meta‐Analysis

open access: yesInternational Journal of Eating Disorders, EarlyView.
ABSTRACT Objective Social comparison has been widely implicated in the etiology and maintenance of body dissatisfaction and eating disorders. At the same time, however, the magnitude of this relationship remains unclear, with existing studies varying widely in methodology, measurement, and sample characteristics.
Fidan Turk   +5 more
wiley   +1 more source

Analysis of Bond Strength of Bioceramic Sealer Following Irrigation with Chlorhexidine. [PDF]

open access: yesIran Endod J
Costa LG   +5 more
europepmc   +1 more source

Tehran, Iran

open access: yesThe Statesman’s Yearbook Companion, 2019

semanticscholar   +1 more source

Spatially Configuring RGO Interlayers With PANI/Lignin Nanoparticles Toward High‐Performance Asymmetric Supercapacitors

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel PLNPs@RGO electrode, self‐assembled from polyaniline/lignin conjugated mesoporous nanoparticles (PLNPs) and reduced graphene oxide, exhibits excellent capacitance and high energy density in supercapacitors. The high‐performance flexible solid‐state asymmetric supercapacitor (FSAC) plays a critical role in advancing the innovation of next ...
Mengya Sun   +6 more
wiley   +1 more source

Estimating opium use prevalence at the national and provincial levels in Iran: a modelling study. [PDF]

open access: yesSci Rep
Nemati S   +28 more
europepmc   +1 more source

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