Results 41 to 50 of about 495,021 (262)

On the energy release rate of aged adhesive joints

, 2022
S.375-404In Chapter B.7 the influence of ageing to the critical energy release rate is described which was investigated experimentally for seven modifications of basic and technical epoxy and polyurethane adhesives.
Sondag, Andrea, Schneider, Barbara, Hesebeck, Olaf, Brede, Markus   +3 more
core   +1 more source

Rockburst Identification Method Based on Energy Storage Limit of Surrounding Rock

Energies, 2020
Rockbursts are one of the prominent problems faced by deep underground engineering. Not only do they affect the construction progress, but they also threaten the safety of construction personnel and equipment, and may even induce earthquakes.
Zhiqiang Zhang, Chun Luo, Heng Zhang, Ruikai Gong   +3 more
doaj   +1 more source

Mixed Finite Element Computation of Energy Release Rate in Anisotropic Materials Based on Virtual Crack Closure-Integral Method

Fracture and Structural Integrity, 2021
The material with anisotropic properties are becoming widely essential due to the ease to manipulate their mechanical properties to obtain a particular quality, insure safety or a specific behavior.
Sami Derouiche, Salah Bouziane, HamoudiBouzerd Laboratory of Civil Engineering and Hydraulics, University of May 8, 1945, Guelma, Algeria.�   +2 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Rapid and stable calcium-looping solar thermochemical energy storage via co-doping binary sulfate and Al–Mn–Fe oxides

Green Energy & Environment
Solar thermochemical energy storage based on calcium looping (CaL) process is a promising technology for next-generation concentrated solar power (CSP) systems.
Changjian Yuan, Xianglei Liu, Xinrui Wang, Chao Song, Hangbin Zheng, Cheng Tian, Ke Gao, Nan Sun, Zhixing Jiang, Yimin Xuan, Yulong Ding   +10 more
doaj   +1 more source

Evaluation of detailed transverse crack propagation toward thickness direction for CF/PEEK quasi-isotropic laminates under fatigue loading

Mechanical Engineering Journal, 2020
Carbon fiber (CF) reinforced polyether ether ketone (PEEK) laminates are applied to the members of transportation structures exposed to severe conditions, because carbon fibers and PEEK have excellent heat-resistant and chemical stability.
Dai TSUNODA, Masahiro KOHARA, Keita NODA, Atsushi HOSOI, Naoki SUGIURA, Takahiro HAYASHI, Hiroyuki KAWADA   +6 more
doaj   +1 more source

Releasing chemical energy in spatially programmed ferroelectrics

Nature Communications, 2022
Chemical energy ferroelectrics show limited control of the energy release rate. Here, the authors design spatially programmed energetic ferroelectrics with controlled energy release rates from machine learning-directed additive manufacturing and ice ...
Yong Hu, Jennifer L. Gottfried, Rose Pesce-Rodriguez, Chi-Chin Wu, Scott D. Walck, Zhiyu Liu, Sangeeth Balakrishnan, Scott Broderick, Zipeng Guo, Qiang Zhang, Lu An, Revant Adlakha, Mostafa Nouh, Chi Zhou, Peter W. Chung, Shenqiang Ren   +15 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Determination of Energy Release Rate Through Sequential Crack Extension

, 2017
A method to determine the critical energy release rate of a peel tested sample using an energy-based approach within a finite element framework is developed. The method uses a single finite element model, in which the external work, elastic strain energy,
Gregory T. Ostrowicki, Suresh K. Sitaraman, Timothy Huang, Scott McCann, Tobias Bernhard, Rao R. Tummala, Anh Tran   +6 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source