Results 21 to 30 of about 81,239 (294)

Experimental Study on Kaiser Effect of Reinforced Concrete Simply-Supported Beams

, 2023
With the progress of transportation, an increasing number of bridges are put into operation, and the assessment of bridge bearing capacity is considered a significant measure to ensure bridge safety.
Zhao, Pengfei, Ji, Anquan, Ma, Jiajun, Wang, Hailong, Xu, Yongfeng, He, Tengfei, Liu, Yang, Liu, Lei   +7 more
core   +1 more source

Time delay mechanism of the Kaiser effect in sandstone under uniaxial compressive stress conditions

, 2021
The rapid and accurate measurement of in situ stress fields is one of the essential steps in geological engineering. Indoor acoustic emission tests and the Kaiser effect provide a promising prior peak stress measurement method.
Fu, Xiang, Xie, Qiang, Duan, Jun, Abdullah, Rini Asnida, Ban, Yu-Xin   +4 more
core   +1 more source

THE MECHANISM OF THE KAISER EFFECT IN PHYLLITE UNDER INDIRECT TENSILE LOADING

Rudarsko-geološko-naftni Zbornik, 2022
Determination of in-situ stress serves as an important step in the design and construction of civil and mining projects, among others. Conventional methods of the in-situ stress measurement are time- and cost-intensive.
Mohammadmahdi Dinmohammadpour, Majid Nikkhah, Kamran Goshtasbi, Kaveh Ahangari   +3 more
doaj  

Acoustic emission characteristics of cracked sandstones affected by different rotating angles of loading under splitting tests

Yantu gongcheng xuebao, 2018
At present, whether the acoustic emission possesses directionality or not is still inconclusive. Besides, the influences of cracks on the acoustic emission directionality are not intensively studied.
XIE Qiang 1,2, TANG Jia-hui 1, LU Kun-peng 1, FU Xiang 3, BAN Yu-xin 1
doaj   +1 more source

Regional evaluation method of ground stress in shale oil reservoirs-taking the Triassic Yanchang formation in northern Shaanxi area as an example

Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023
Estimating in-situ stress in shale oil reservoirs is critical for predicting hydraulic fracture height. However, the varied longitudinal lithology and transverse isotropy challenge the regional evaluation of ground stress.
Bing Hou, Yizhao Wang, Yu Zhang, Yuan You   +3 more
doaj   +1 more source

Study on Kaiser Effect of Edge Chipping for Engineering Ceramics during their Failure Process

, 2011
An edge chipping experiment under static load is adopted to study the Kaiser Effect during the failure process for engineering ceramics. The mechanisms inducing Kaiser Effect are discussed. Some AE signals during the course of Kaiser Effect are analyzed.
Xiu Jian Tang, Jian Quan Wang, Xin Li Tian, Bao Guo Zhang, Zhi Yuan Wu   +4 more
core   +1 more source

Investigating the Behavioral Biases of Individual investors’ Decision using Bailard, Biehl and Kaiser Five-Way Model [PDF]

راهبرد مدیریت مالی
Behavioral biases are systematic and predictable errors that can occur in making financial decisions. Bailard, Biehl and Kaiser five-way model is one of the general models for understanding and identifying behavioral biases. Based on this, the purpose of
Mohammad Nazaripour, Babak Zakizadeh
doaj   +1 more source

The effect of thermal conduction on the Virgo cluster

, 2005
Thermal conduction has been suggested as a possible mechanism by which sufficient energy is supplied to the central regions of galaxy clusters to balance the effect of radiative cooling.
Pope, Edward C.D., Fangohr, Hans, Pavlovski, Georgi, Kaiser, Christian R.   +3 more
core   +1 more source

Some Investigations and Application of Acoustics in Geophysics

Cejing jishu
We provide an overview of recent research advancements in the field of geoacoustics, with a focus on novel discoveries. We explore, analyze and discuss new physical phenomena, such as the reflection and refraction of acoustic waves at interfaces between ...
FA Lin, YANG Huiting, MENG Shuangshuang, FANG Xiangrong, FAN Jin, ZHANG Kaiqiang, XU Yulin, ZOU Xiao, CUI Xinhao, SHI Guiquan, ZHAO Meishan   +10 more
doaj   +1 more source

Risk of Retinopathy Associated with Long‐Term Use of Hydroxychloroquine in Patients with Rheumatic Diseases: A Systematic Review and Meta‐Analysis

Arthritis Care &Research, EarlyView.
Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among patients receiving long‐term HCQ with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain optical coherence tomography (SD‐OCT) for screening ...
Narsis Daftarian, Chloe Yue, Steve D Levasseur, Hui Xie, J. Antonio Avina‐Zubieta   +4 more
wiley   +1 more source