Results 1 to 10 of about 115,242 (300)

Anisotropic Fermi Contour of (001) GaAs Holes in Parallel Magnetic Fields

, 2012
We report a severe, spin-dependent, Fermi contour anisotropy induced by parallel magnetic field in a high-mobility (001) GaAs two-dimensional hole system.
Baldwin, K. W., Kamburov, D., Pfeiffer, L. N., Shayegan, M., West, K. W., Winkler, R.   +5 more
core   +1 more source

Tuning of Fermi Contour Anisotropy in GaAs (001) 2D Holes via Strain

, 2017
We demonstrate tuning of the Fermi contour anisotropy of two-dimensional (2D) holes in a symmetric GaAs (001) quantum well via the application of in-plane strain.
Baldwin, K. W., Jo, Insun, Mueed, M. A., Padmanabhan, Medini, Pfeiffer, L. N., Shayegan, M., West, K. W., Winkler, R.   +7 more
core   +1 more source

Proton-Coupled Electron Flow in Protein Redox Machines [PDF]

, 2010
Electron transfer (ET) reactions are fundamental steps in biological redox processes. Respiration is a case in point: at least 15 ET reactions are required to take reducing equivalents from NADH, deposit them in O_2, and generate the electrochemical ...
Dempsey, Jillian L., Gray, Harry B., Winkler, Jay R.   +2 more
core   +1 more source

Luminosity Function of High-Mass X-ray Binaries and Anisotropy in the Distribution of Active Galactic Nuclei toward the Large Magellanic Cloud

, 2012
In 2003-2012, the INTEGRAL observatory has performed long-term observations of the Large Magellanic Cloud (LMC). At present, this is one of the deepest hard X-ray (20-60 keV) surveys of extragalactic fields in which more than 20 sources of different ...
A. A. Lutovinov, A. Bird, A. Lutovinov, C. Winkler, E. V. Filippova, H.-J. Grimm, H.-J. Grimm, K. A. Postnov, M. Revnivtsev, P. Shtykovskiy, R. Krivonos, R. Krivonos, R. Krivonos, S. Mineo, S. S. Tsygankov, S. Sazonov, S. Sazonov, S.A. Grebenev   +17 more
core   +1 more source

Anisotropic composite fermions and fractional quantum Hall effect

, 2016
We study the role of anisotropy on the transport properties of composite fermions near Landau level filling factor $\nu=1/2$ in two-dimensional holes confined to a GaAs quantum well.
Baldwin, K. W., Hasdemir, S., Kamburov, D., Mueed, M. A., Pfeiffer, L. N., Shayegan, M., West, K. W.   +6 more
core   +1 more source

Timoshenko beam under Winkler foundation

, 2019
We are interested in buckling for Timoshenko beam supported along its length by an elastic wall (Winkler foundation) and subjected to a longitudinal force. We use analytical methods to determine buckling load and mode shape rather than numerical methods. Haringx and Engesser models are compared. We show that the rigidity of the wall solely gouverns the
Marwan, Hariz, Guy, Casale, Marrec Loïc, Le, Lerbet, Jean   +3 more
openaire   +1 more source

The general solution to the classical problem of finite Euler Bernoulli beam [PDF]

An analytical solution is obtained for the problem of free and forced vibrations of a finite Euler Bernoulli beam with arbitrary (partially fixed) boundary conditions.
Amba-Rao, C. L., Hussaini, M. Y.
core   +1 more source

Metal-Oxo Photo-oxidants, Photochemistry and Photophysics of trans-[Os^(VI)(tmc)(O)_2]^(2+)(tmc = 1,4,8,11-tetramethyl-1,4,8,11-tetra-azacyclotetradecane) and trans-[Os^(VI)(CN)_4(O)_2]^(2-) [PDF]

, 1987
trans-[Os^(VI)(tmc)(O)_2]^(2+)(tmc = 1,4,8,11-tetramethyl-1,4,8,11-tetra-azacyclotetradecane) and trans-[Os^(VI)(CN)_4(O)_2]^(2-) are emissive in the solid state and in fluid solutions at room temperature (τ~ 1.0–1.5 µs); the (^3)E_g state of trans-[Os ...
Che, Chi-Ming, Cho, Kar-Cheong, Gray, Harry B., Yam, Vivian Wing-Wah   +3 more
core  

MODES OF VIBRATION OF THE BEAMS UNDER THE INFLUENCE OF DISCONTINUITY IN FOUNDATION

Facta Universitatis. Series: Mechanical Engineering, 2014
Vibrations of the Timoshenko beams resting on the Winkler and Pasternak elastic foundation with discontinuity are investigated in this paper. A p-version finite element method that accounts for shear deformation is used.
Vladimir Stojanović, Pedro Ribeiro
doaj  

Simplified Calculation Method for Existing Tunnel Settlement Caused by Shield Under-passing Based on Timoshenko-PasternakModel

Chengshi guidao jiaotong yanjiu
Objective It is aimed to tackle the inefficient accuracy of traditional Euler-Bernoulli beam and Winkler foundation model in calculating settlement induced by shield under-passing existing tunnels. Method Based on the Timoshenko beam theory and Pasternak
WANG Liang, PAN Bintao, JIANG Jie, LONG Yihang   +3 more
doaj   +1 more source