Results 31 to 40 of about 3,685 (135)

Damage Creep Model of Viscoelastic Rock Based on the Distributed Order Calculus

open access: yesApplied Sciences, 2023
In this paper, the distributed order calculus was used to establish a creep damage theoretical model to accurately describe the creep properties of viscoelastic materials.
Ming Li   +6 more
doaj   +1 more source

Creep and breakage behavior of broken rock in the caved zone of abundant mines under triaxial compression condition

open access: yesEnergy Reports, 2022
It is essential to deeply understand the deformation behavior of overburden above the goaf after mining for the ecological restoration of abandoned mines and the reuse of underground space.
Fanfei Meng   +4 more
doaj   +1 more source

Experimental investigation of the creep damage evolution of coal rock around gas extraction boreholes at different water contents.

open access: yesPLoS ONE, 2023
The creep process of the coal rock around the extraction boreholes under stress-water coupling is an important factor affecting the stability of the boreholes. To study the influence of the water content of perimeter of the coal rock around the boreholes
Jiangbo Guo   +3 more
doaj   +2 more sources

Fractal derivative Nishihara rheology model and its application

open access: yesYantu gongcheng xuebao
The soft soil exhibits typical nonlinear rheological characteristics, while the traditional element models cannot accurately describe them. By replacing the conventional damper with a fractal damper and considering the damaging effects of soils, an ...
YIN Qian 1, 2 , GONG Weiming 1, 2, DAI Guoliang 1, 2, WANG Bochen 1, 2, ZHU Mingxing 3, RUAN Jing 4, LIU Qiang 5, ZHANG Fan 5
doaj   +1 more source

Creep characteristics and constitutive model of coal under triaxial stress and gas pressure

open access: yesEnergy Science & Engineering, 2020
Creep behavior is one of the most important mechanical behaviors of coal. In the present study, we systematically carried out a series of creep experiments of briquette samples under triaxial compression and gas pressure.
Liang Zhang   +5 more
doaj   +1 more source

Climate‐Related Disclosure and Bank Performance: Does Bank Type Matter?

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This paper investigates whether climate‐related disclosure (CRD) affects the financial performance of conventional banks (CBs) and Islamic banks (IBs) differently. Using a unique hand‐collected dataset on CRD for 591 banks (422 CBs and 169 IBs) from 24 countries over a 4‐year period, we examine how the relationship between CRD and financial ...
Rasim Simsek   +2 more
wiley   +1 more source

Ultra‐Thick Carbon Microhoneycomb Cathode for High‐Capacity Lithium‐Oxygen Batteries

open access: yesCarbon Energy, EarlyView.
This work demonstrates ultra‐thick biochar‐derived carbon microhoneycomb cathodes for lithium‐oxygen batteries. The penetrated macrochannels serve as highly efficient pathways for Li+ and O2 and provide abundant accommodation space for the discharge product. The optimized cathode achieved a high areal capacity of 38.2 mAh cm–2, providing guidelines for
Minghao Liu   +7 more
wiley   +1 more source

Polarity on Demand: Nucleophilic, Electrophilic, and Ambiphilic Reactivity at a 9,10‐Dihydro‐9,10‐Disilaanthracene Platform

open access: yesChemistry – A European Journal, EarlyView.
A 9,10‐dihydro‐9,10‐disilaanthracene platform was efficiently synthesized and features intrinsically electrophilic Si sites. Upon stepwise reductive Si─H bond cleavage, these Si sites are converted into nucleophilic centers. This controlled polarity switching also enables ambiphilic reactivity within a homo‐heteroelement framework.
Moritz Schmidt   +4 more
wiley   +1 more source

Numerical Simulation of Non-Stationary Parameter Creep Large Deformation Mechanism of Deep Soft Rock Tunnel

open access: yesApplied Sciences, 2022
The accelerated creep plays an important role in the disasters of soft-rock tunnels under high stress. However, most of previous studies only involved attenuation creep and uniform creep.
Jiancong Xu   +4 more
doaj   +1 more source

Association between GLIM‐defined malnutrition and in‐hospital costs in adults with sepsis: A sub analysis of a prospective cohort study

open access: yesJournal of Parenteral and Enteral Nutrition, EarlyView.
Abstract Background International statements suggest using the Global Leadership Initiative on Malnutrition (GLIM) criteria in intensive care units (ICUs); however, the economic impact of GLIM‐defined malnutrition in sepsis remains unclear. This study investigated the association between GLIM‐defined malnutrition and in‐hospital costs in sepsis ...
Yuki Hashimoto   +38 more
wiley   +1 more source

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