Results 41 to 50 of about 461,790 (208)

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

open access: yesGreen 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   +10 more
doaj   +1 more source

Research on the energy evolution characteristics and the failure intensity of rocks

open access: yesInternational Journal of Mining Science and Technology, 2020
It is pretty challenging and difficult to quantitatively evaluate the intensity of dynamic disasters in deep mining engineering. Based on the uniaxial loading-unloading experiments for five types of rocks, this paper investigated the energy evolution ...
Lin Gao   +3 more
doaj   +1 more source

Dynamic energy release rate in couple-stress elasticity

open access: yesJournal of Physics: Conference Series, 2013
This paper is concerned with energy release rate for dynamic steady state crack problems in elastic materials with microstructures. A Mode III semi-infinite crack subject to loading applied on the crack surfaces is considered. The micropolar behaviour of the material is described by the theory of couple-stress elasticity developed by Koiter.
Morini, Lorenzo   +2 more
openaire   +1 more source

Numerical study of critical straight, frown, and chevron incisions in small incision cataract surgery

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Introduction: When an intraocular lens (IOL) injector is inserted through a pre-cut corneal incision (e.g., an empirical size of 2.2 mm) during small incision cataract surgery, uncontrollable tearing to the corneal tissue may occur, which is highly ...
Yang Han, Yang Han, Nan Qi, Nan Qi
doaj   +1 more source

Young’s Modulus and Hardness Identification of Extruded Aluminum by Scratching Damper

open access: yesMachines
A special vibration damper is proposed for Young’s modulus and hardness identification through a scratching process on extruded aluminum. This paper presents the design and working principle of a scratching damper based on a scratching device.
Chun-Nam Wong   +3 more
doaj   +1 more source

Estimations of Critical Clear Corneal Incisions Required for Lens Insertion in Cataract Surgery: A Mathematical Aspect

open access: yesFrontiers in Physiology, 2022
In a routine cataract operation cornea tissue may be damaged when an intra-ocular lens (IOL) injector of diameter between 1.467 and 2.011 mm is inserted through an empirically designed 2.2 mm corneal incision.
Nan Qi   +4 more
doaj   +1 more source

Numerical Investigation of Crack Suppression Strategies in Ultra-Thin Glass Substrates for Advanced Packaging

open access: yesMicromachines
The mechanical reliability of glass substrates is a key challenge for their adoption in advanced semiconductor packaging. This study employs finite element analysis to systematically evaluate the risk of edge crack propagation in large glass panels ...
Xuan-Bach Le   +2 more
doaj   +1 more source

Investigating interfacial cracks in bi-materials through a 4-point bending model analysis [PDF]

open access: yesTheoretical and Applied Mechanics
This study focuses on examining the failure behavior of interfacial cracks in bimaterial structures. Bimaterials present a unique challenge due to their composition, consisting of two materials that can be homogeneous and isotropic, with a specific ...
Mankour Abdeljelil, Belabbes Bachir B.
doaj   +1 more source

Effect of interfacial nanostructure on mode mixity in directly bonded carbon fiber reinforced thermoplastic laminates and aluminum alloy considering thermal residual stress

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
In recent years, for the aim of weight reduction of transportation equipment, carbon fiber reinforced thermoplastics (CFRTPs), which have high recyclability and formability, are becoming suitable for mass production. Additionally, with the development of
Hiroki OTA   +5 more
doaj   +1 more source

Energy Release Rates for Various Defects

open access: yes, 1983
It is known that the energy-release rates associated with translation, rotation, and self-similar expansion of cavities or cracks in solids are expressed by path-independent integrals J, L and M, respectively. These integrals are of interest to NDE in that they can be used to characterize nondestructively defects in solids.
Pak, Eugene   +2 more
openaire   +3 more sources

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