Results 51 to 60 of about 10,379 (248)

Microsphere‐Modulated Sensing‐in‐Energy Supercapacitor With Self‐Filtering Ultra‐Large Signal Under High‐g Shocks

open access: yesAdvanced Science, EarlyView.
To overcome severe signal oscillation under extreme impact conditions, this work presents a Sensing‐in‐Energy microdevice which integrates a MEMS inertial structure directly within a supercapacitor electrolyte cavity. Utilizing shock‐driven transient contact and electrolyte damping for signal self‐filtering, it achieves weak‐oscillation, large ...
Zhihao Zheng   +7 more
wiley   +1 more source

CRYOGENIC RATCHETING OF PRESTRAINED AUSTENITIC STAINLESS STEEL S30408

open access: yesJixie qiangdu, 2020
Taking advantage of the EUM-25 K20 tension-torsion fatigue testing machine by CARE,the cryogenic uniaxial ratcheting tests were carried out for the S30408 specimens with and without weld,and with 0%,8%,and 12% pre-strains at110 K.
LI LeiLei   +3 more
doaj  

Micromechanical investigation of soil plasticity using a discrete model of polygonal particles [PDF]

open access: yesTheoretical and Applied Mechanics, 2008
The mechanical behavior of soils has been traditionally described using continuum-mechanics-based models. These are empirical relations based on laboratory tests of soil specimens.
Alonso-Marroquin Fernando   +2 more
doaj   +1 more source

Numerical Investigation on the Service Life of a Liquid Rocket Engine Thrust Chamber

open access: yesMetals, 2023
Rocket engine thrust chambers withstand very high temperatures and thermal gradients during service that induce multiple damaging phenomena such as plasticity, low-cycle-fatigue (LCF) and creep.
Michele Ferraiuolo   +3 more
doaj   +1 more source

Brownian Motion in a Speckle Light Field: Tunable Anomalous Diffusion and Deterministic Optical Manipulation [PDF]

open access: yes, 2013
The motion of particles in random potentials occurs in several natural phenomena ranging from the mobility of organelles within a biological cell to the diffusion of stars within a galaxy.
Gigan, Sylvain   +2 more
core   +2 more sources

Evolution of Physical Intelligence Across Scales

open access: yesAdvanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu   +7 more
wiley   +1 more source

Evaluation of the ratcheting behavior of Cr-Mo steel used in CNG tank

open access: yesResults in Engineering
Compressed natural gas (CNG) tanks, due to the frequent filling and emptying during their service life, are constantly subjected to fatigue loading on the tank's wall, which causes premature failure.
Karim Aliakbari   +2 more
doaj   +1 more source

Constitutive model calibration for the thermal viscoelastic-viscoplastic behavior of high density polyethylene under monotonic and cyclic loading

open access: yesPolymer Testing, 2023
High density polyethylene (HDPE) can show viscoelastic-viscoplastic behaviors under monotonic loads and a stress softening after reloading under cyclic ones.
Abdulla Almomani   +3 more
doaj   +1 more source

Investigations on Ratcheting and Post–ratcheting Tensile Behavior of a 7075-T6 Aluminum Alloy [PDF]

open access: yes, 2015
In this work, it has been aimed to study the ratcheting and post–ratcheting tensile behavior of a 7075-T6 aluminum alloy at room temperature which is potentially used in aerospace, automobile components etc.
Amarnath, Lala
core  

Ratchet Effect and Nonlinear Transport for Particles on Random Substrates with Crossed ac Drives

open access: yes, 2005
We show in simulations that overdamped interacting particles in two dimensions with a randomly disordered substrate can exhibit novel nonequilibrium transport phenomena including a transverse ratchet effect, where a combined dc drive and circular ac ...
C. J. Olson Reichhardt   +2 more
core   +1 more source

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