Results 101 to 110 of about 1,082,201 (350)

Acoustic horizons for axially and spherically symmetric fluid flow

, 2005
We investigate the formation of acoustic horizons for an inviscid fluid moving in a pipe in the case of stationary and axi-symmetric flow. We show that, differently from what is generally believed, the acoustic horizon forms in correspondence of either a
Barcelo C, Barcelo C, Cadoni M, Cardoso V, Jacobson T A, Liberati S, Liepmann H W, Mariano Cadoni, Novello M, Paolo Pani, Visser M, Visser M, Volovik G E, Volovik G E   +13 more
core   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

Molecular random walks and invariance group of the Bogolyubov equation

, 2009
Statistics of molecular random walks in a fluid is considered with the help of the Bogolyubov equation for generating functional of distribution functions. An invariance group of solutions to this equation as functions of the fluid density is discovered.
A. N. Kolmogorov, D. Ruelle, E. M. Lifshitz, G. A. Gal’perin, G. N. Bochkov, G. N. Bochkov, G. N. Bochkov, H. Beijeren van, L. D. Landau, N. N. Bogoliubov, N. S. Krylov, P. Resibois, V. I. Arnold, V. P. Silin, Ya. G. Sinai, Yu. E. Kuzovlev, Yu. E. Kuzovlev, Yu. E. Kuzovlev   +17 more
core   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source

Thermodynamics of a Schwarzschild Black Hole in Phantom Cosmology with Entropy Corrections

, 2012
Motivated by some earlier works \cite{pavon,sadjadi} dealing with the study of generalized second law (GSL) of thermodynamics for a system comprising of a Schwarzschild black accreting a test non-self-gravitating fluid namely phantom energy in FRW ...
Bamba, Kazuharu, Jamil, Mubasher, Momeni, D., Myrzakulov, Ratbay   +3 more
core   +1 more source

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

Dual Solutions in a Boundary Layer Flow of a Power Law Fluid over a Moving Permeable Flat Plate with Thermal Radiation, Viscous Dissipation and Heat Generation/Absorption

Fluids, 2018
The aim of the present study is to investigate the combined effects of the thermal radiation, viscous dissipation, suction/injection and internal heat generation/absorption on the boundary layer flow of a non-Newtonian power law fluid over a semi ...
Aftab Ahmed, Javed I. Siddique, Muhammad Sagheer   +2 more
doaj   +1 more source

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source

Power-Law Fluid Flow in Coiled Tubing and Pressure Drop Influence Factors Analysis

Shiyou jixie, 2020
Power-law fluids are non-Newtonian fluids that are widely used in the field of petroleum engineering. To study the complex flow conditions and pressure drop changes in spiral sections of coiled tubing, the flow of power-law fluids in spiral tubing was ...
张佳兴, 张全胜, 于桂杰, 郭壮, 吕玮   +4 more
doaj  

Couette-Poiseuille flow with partial slip and uniform cross flow for power-law fluids

, 2018
Exact solutions are obtained for the steady flow of a power-law fluid between parallel plates with partial slip conditions and uniform cross flow. The problem is properly formulated and similarities are exploited.
El-Mistikawy, Tarek M. A.
core