Results 41 to 50 of about 553,835 (300)

Linearization of dynamic equations of flexible mechanisms - a finite element approach [PDF]

, 1991
A finite element based method is presented for evaluation of linearized dynamic equations of flexible mechanisms about a nominal trajectory. The coefficient matrices of the linearized equations of motion are evaluated as explicit analytical expressions ...
Jonker, Ben
core   +4 more sources

Texture Evolution of AZ31 Magnesium Alloy Sheet at High Strain Rates [PDF]

, 2010
In the current contribution the mechanical behaviour at high strain rates of AZ31 magnesium alloy sheet is studied. Uniaxial deformation properties were studied by means of tensile split Hopkinson pressure bar (SHPB) at different temperatures.
Dudamell, N.V., Gálvez Díaz-Rubio, Francisco, Hurtado, I., Letzig, D., Pérez Prado, María Teresa, Ulacia, I., Yi, S.   +6 more
core   +2 more sources

Deformation quantization of geometric quantum mechanics [PDF]

Journal of Physics A: Mathematical and General, 2002
Second quantization of a classical nonrelativistic one-particle system as a deformation quantization of the Schrodinger spinless field is considered. Under the assumption that the phase space of the Schrodinger field is $C^{\infty}$, both, the Weyl-Wigner-Moyal and Berezin deformation quantizations are discussed and compared. Then the geometric quantum
García-Compeán, H., Plebański, J. F., Przanowski, M., Turrubiates, F. J.   +3 more
openaire   +3 more sources

Interface Microstructures and Bond Formation in Ultrasonic Consolidation [PDF]

, 2007
The quality of ultrasonically consolidated parts critically depends on the bond quality between individual metal foils. This necessitates a detailed understanding of interface microstructures and ultrasonic bonding mechanism.
Adams, B. L., Aydelotte, B., Janaki Ram, G. D., Nylander, C., Stucker, B. E., Yang, Y.   +5 more
core   +1 more source

Mechanism of texture and microstructure evolution during high temperature plane strain compression in AZ31B and AZ80 magnesium alloys with various initial textures [PDF]

, 2019
The effects of pre-existent textures on the evolution behaviors of microstructure and texture at high-temperature plane strain compression deformation of AZ31B magnesium alloy have been studied. Deformation is conducted at 723 K with a strain rate of 5.0
Fukutomi, Hiroshi, Hasegawa, Makoto, Kim, Kwon-Hoo, Okayasu, Kazuto, Park, Hyung-Gyun, Umezawa, Osamu   +5 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Stress relaxation behavior of low carbon steel at different temperatures

Materials Research Express, 2023
In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and
Shanchao Zuo, Danchen Wang, Changqi Yang, Peipei Hu, Ran Bi, Bing Du, Decheng Wang   +6 more
doaj   +1 more source

Gauge-invariant massive BF models [PDF]

, 2015
Consistent interactions that can be added to a free, Abelian gauge theory comprising a BF model and a finite set of massless real scalar fields are constructed from the deformation of the solution to the master equation based on specific cohomological ...
Bizdadea, Constantin, Saliu, Solange-Odile   +1 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Microstructure and mechanical properties of CT1400 cryogenic titanium alloy

Cailiao gongcheng
In urgent demand for high-performance cryogenic titanium alloy for the heavy-lift launch vehicle， a novel 1500 MPa Ti-Al-V-Zr-Mo-Nb cryogenic titanium alloy （CT1400） was designed.
ZHENG Zhuangzhuang, LU Zichuan, YANG Jianhui, CHANG Ruohan, TU Gang, YAO Caogen, LYU Hongjun, KANG Li   +7 more
doaj   +1 more source