Results 91 to 100 of about 4,596,099 (356)

Influence of Confining Pressure Unloading Rate on the Strength Characteristics and Fracture Process of Granite Using Lab Tests

Advances in Materials Science and Engineering, 2021
In order to study the mechanical behaviors and fracture process properties of granite under confining pressure unloading with constant axial pressure, RMT-150B rock mechanics test system and acoustic emission detector were used to study the mechanical ...
Jiaqi Guo, Pengfei Liu, Junqi Fan, Xiaoyan Shi, Xin Huang   +4 more
doaj   +1 more source

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Energy characteristics of saturated Jurassic sandstone in western China under different stress paths

Deep Underground Science and Engineering
To study the energy evolution and failure characteristics of saturated sandstone under unloading conditions, rock unloading tests under different stress paths were conducted.
Yi Yang, Jian Lin, Yun Wu, Shilong Peng, Wanhang Shao, Lining Yang   +5 more
doaj   +1 more source

A constitutive model for cemented clays capturing cementation degradation [PDF]

, 2014
Laboratory experiments show that the effect of cementation on clays gradually diminishes as the confining pressure increases (particularly at high confining pressures) due to the degradation of cementation bonds.
Fatahi, B, Khabbaz, H, Nguyen, LD
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Fractal Characteristics of Coal and Sandstone Failure under Different Unloading Confining Pressure Tests

, 2020
To analyze the fractal characteristics of coal rock failure under unloading conditions, triaxial unloading confining pressure tests were carried out on coal and sandstone rock samples under different unloading rates and initial confining pressures.
Tianran Ma, Depeng Ma, Yongjie Yang
semanticscholar   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Experimental Study of Confining Pressure-Induced Fracture Network for Shale Gas Reservoir Under Triaxial Compression Conditions

Fractal and Fractional
The experimental study of shale fracture development is very important. As a channel of permeability, a fracture has a great influence on the development of shale gas.
Jinxuan Han, Ming Gao, Yubo Wu, Ali Raza, Pei He, Jianhui Li, Yanjun Lu, Manping Yang, Hongjian Zhu   +8 more
doaj   +1 more source

Virial pressure in systems of active Brownian particles

, 2015
The pressure of suspensions of self-propelled objects is studied theoretically and by simulation of spherical active Brownian particles (ABP). We show that for certain geometries, the mechanical pressure as force/area of a confined systems can equally be
Gompper, Gerhard, Winkler, Roland G., Wysocki, Adam   +2 more
core   +2 more sources

Superbrittleness of rocks at high confining pressure [PDF]

Proceedings of the International Conference on Deep and High Stress Mining, 2010
The paper discusses the variation of rock brittleness with confining pressure σ3 for rocks of different hardness, failed under triaxial compression with σ1 > σ2 = σ3. Experimental results presented in the paper show that hard rocks unlike relatively soft rocks increase their brittleness with rising confining pressure σ3. The harder the rock the greater
openaire   +1 more source