Results 31 to 40 of about 406,954 (296)

Uniaxial Compressive Mechanical Behavior of Coals with Different Joint Spacing and Angles: A DEM Numerical Simulation Study

Applied Sciences
Coal rupture in coal mining is prone to cause rockburst dynamic hazards. To investigate the effect of joint structure characteristics on the mechanical behavior and the fracture mechanism of coal sample.
Herui Zhang, Enyuan Wang, Jianhua Yue, Bin Miao, Danyang Xi, Xiaozhen Teng   +5 more
doaj   +1 more source

Size Effect on Tensile Properties and Fracture Mechanism of Micro-Rolled Ultra-Thin Cu/Al Composite Sheet

Metals
In this study, a laboratory-precision four-high micro-rolling mill was employed to investigate the influence of grain size on the deformation behavior and fracture mechanism of a micro-rolled Cu/Al composite ultra-thin sheet.
Pengkun Zhang, Hongmei Zhang, Guoao Yu, Zhengyi Jiang   +3 more
doaj   +1 more source

Fatigue analysis of brazing structures with fin-plate-side bar in Liquefied Natural Gas (LNG) heat exchangers under cryogenic conditions

Science and Technology for Energy Transition, 2023
The purpose of this study is to evaluate the fatigue life of heat exchangers used for Liquefied Natural Gas (LNG) and to ensure its structural safety, the alternating stress of brazing structures under cryogenic conditions was analyzed with a Finite ...
Ma Hongqiang, Jia Jiwei, Liu Yu, Luo Xinmei, Hou Caiqin, Wang Gang   +5 more
doaj   +1 more source

Influence of corrosion and creep on intergranular fatigue crack path in 2XXX aluminium alloys [PDF]

, 2010
In this paper, two examples of the influence of time-dependent processes on crack path in two 2XXX aluminium alloys are presented. The first example is concerned with corrosion–fatigue crack growth resistance of a 2024 T351 alloy cracked in the S–L ...
Hénaff, Gilbert, Menan, Frédéric, Odemer, Grégory   +2 more
core   +3 more sources

Research on mechanism and practice of expansion‐induced fracturing and pressure relief in deep coal mines

Energy Science & Engineering
A nonexplosive expansion method is proposed to apply in the field of rock burst prevention and control in coal mine. The principle of the expansive agent reaction was analysed and specimens with one hole and two holes were tested with and without axial ...
Shitan Gu, Zhiyao Liu, Wenshuai Li, Bangyou Jiang, Changpeng Chen   +4 more
doaj   +1 more source

Processing of Hollow Glass Microspheres (HGM) filled Epoxy Syntactic Foam Composites with improved Structural Characteristics

Science and Engineering of Composite Materials, 2021
The objective of this work is to improve the structural characteristics of hollow glass microsphere (HGM) filled epoxy syntactic foam composites with little voids content and improved HGM dispersion in the composite.
Afolabi Olusegun A., Kanny Krishnan, Mohan T. P   +2 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Mechanical analysis of basic roof fracture mechanism and feature in coal mining with partial gangue backfilling

Open Geosciences, 2020
Coal mining with partial gangue backfilling (CMPGB) method has the advantages of both high filling efficiency and excellent workface capacity, which breaks through the technical bottleneck of full-section backfilling mining.
Wei Yin, Xiaomin Bai, Jingke Wu, Ran Zhang, Chao Liu, Ran Zhang, Yunxin Tang   +6 more
doaj   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Biomechanical Tolerance of Whole Lumbar Spines in Straightened Posture Subjected to Axial Acceleration [PDF]

, 2017
Quantification of biomechanical tolerance is necessary for injury prediction and protection of vehicular occupants. This study experimentally quantified lumbar spine axial tolerance during accelerative environments simulating a variety of military and ...
Baisden, Jamie L., Chirvi, Sajal, Curry, William H., Doan, Ninh, Maiman, Dennis J., Paskoff, Glenn, Pintar, Frank A., Shender, Barry S., Stemper, Brian D., Yoganandan, Narayan   +9 more
core   +2 more sources