Results 21 to 30 of about 4,998,282 (269)

Spontaneous generation of bending waves in isolated Milky Way-like discs [PDF]

, 2017
We study the spontaneous generation and evolution of bending waves in $N$-body simulations of two isolated Milky Way-like galaxy models. The models differ by their disc-to-halo mass ratios, and hence by their susceptibility to the formation of a bar and ...
Matthew H. Chequers, L. Widrow
semanticscholar   +1 more source

Optimized hologram generation method for real-time spontaneous manipulation

AIP Advances, 2023
Aided by computer generated holography, holographic optical tweezers enable manipulation of particles and objects with exceptional versatility. The responsiveness of the manipulation is often hindered by the speed of holograph generation, especially when
Zhelin Qu, Shuo Liu, Xudong Fan, Changfeng Fang, Jun-Lei Wang, Xian Zhao   +5 more
doaj   +1 more source

Spontaneous current generation in gated nanostructures [PDF]

, 2004
We have observed an unusual dc current spontaneously generated in the conducting channel of a short-gated GaAs transistor. The magnitude and direction of this current critically depend upon the voltage applied to the gate. We propose that it is initiated
A. K Savchenko, Altshuler B. L., Bykov A. A., D. A Ritchie, D. W Horsell, Fal'ko V. I., Gantmakher V. F., Kop'ev P. S., Laiko E. I., Smith R. A., V. I Kozub, V. M Vinokur, Veselago V. G., Y. M Galperin   +13 more
core   +1 more source

Spontaneous generation of singularities in paraxial optical fields. [PDF]

Optics Letters, 2015
In nonrelativistic quantum mechanics, the spontaneous generation of singularities in smooth and finite wave functions is a well understood phenomenon also occurring for free particles.
A. Aiello
semanticscholar   +1 more source

Phosphosilicate Fiber-Based Low Quantum Defect Raman Fiber Laser with Ultrahigh Spectral Purity

Nanomaterials, 2022
The phosphosilicate fiber-based Raman fiber laser (RFL) has great potential in achieving low-quantum defect (QD) high-power laser output. However, the laser’s performance could be seriously degraded by the Raman-assisted four-wave mixing (FWM) effect and
Yang Zhang, Jiangming Xu, Sicheng Li, Junrui Liang, Jun Ye, Xiaoya Ma, Tianfu Yao, Pu Zhou   +7 more
doaj   +1 more source

Spontaneous Generation of H2O2 and Hydroxyl Radical through O2 Reduction on Copper Phosphide under Ambient Aqueous Condition.

Environmental Science and Technology, 2019
Copper phosphide (Cu xP) was synthesized and tested for its reactivity for generating H2O2 through spontaneous reduction of dioxygen under ambient aqueous condition.
Hyejin Kim, Jonghun Lim, Seonggyu Lee, Hak-Hyeon Kim, Changha Lee, Jinwoo Lee, W. Choi   +6 more
semanticscholar   +1 more source

An acoustic analysis of the rhythm of Yemeni Arabic

Journal of Modern Languages, 2019
Previous studies have found that different Arabic dialects display different degrees of stress-timing features forming a continuum that ranges from more stress-timed to less stress-timed Arabic dialects.
Nada Mohammed Salem, Stefanie Pillai
doaj   +14 more sources

A chiral route to spontaneous entanglement generation [PDF]

, 2015
We study the generation of spontaneous entanglement between two qubits chirally coupled to a waveguide. The maximum achievable concurrence is demonstrated to increase by a factor of $4/e \sim 1.5$ as compared to the non-chiral coupling situation.
Garcia-vidal, Francisco J., Gonzalez-Ballestero, Carlos, Gonzalez-Tudela, Alejandro, Moreno, Esteban   +3 more
core   +2 more sources

Dynamical Symmetry Breaking in Planar QED [PDF]

, 2000
We investigate (2+1)-dimensional QED coupled with Dirac fermions both at zero and finite temperature. We discuss in details two-components (P-odd) and four-components (P-even) fermion fields.
Corwall J M, Deser S, Farakos K, Farakos K, Gradshteyn I S, Gusynin V, Jackiw R, Kanemura S, Luigi Tedesco, Niemi A, Niemi A T, Paolo Cea, See, See, Shpagin A V, Umezawa H   +15 more
core   +2 more sources

Mechanisms of Action and Targets of Nitric Oxide in the Oculomotor System [PDF]

, 1998
Nitric oxide (NO) production by neurons in the prepositus hypoglossi (PH) nucleus is necessary for the normal performance of eye movements in alert animals.
Escudero González, Miguel, Estrada Cerquera, Carmen, Moreno López, Bernardo   +2 more
core   +1 more source