Results 21 to 30 of about 99,740 (249)

Radiative heat transfer between nanostructures [PDF]

, 2001
We simplify the formalism of Polder and Van Hove [Phys.Rev.B {\bf 4}, 3303(1971)], which was developed to calculate the heat transfer between macroscopic and nanoscale bodies of arbitrary shape, dispersive and adsorptive dielectric properties. In the non-
A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. Majumdar, B. N. J. Persson, B. N. J. Persson, B. N. J. Persson, D. Polder, E. M. Lifshitz, G. V. Dedkov, I. Dorofeev, J. B. Pendry, J. B. Pendry, L. D. Landau, M. B. Pogrebinskii, M. L. Levin, M. L. Levin, M. S. Tomassone, P. J. Rice, R. Nozawa, S. M. Rytov, T. J. Gramila, T. J. Gramila, T. J. Gramila, T. J. Gramila   +25 more
core   +2 more sources

Field Measurement of PV Array Temperature for Tracking and Concentrating 1 k Wp Generators Installed in Malaysia

International Journal of Photoenergy, 2013
The effect of temperature elements for PV array with tracking and concentrating features installed in the tropical ground condition is presented. The temperature segment covers ambient temperature and surface and bottom temperature for three types of PV ...
M. Effendy Ya’acob, H. Hizam, M. Amran M. Radzi, M. Z. A. A. Kadir   +3 more
doaj   +1 more source

Channel Modelling and Estimation for Shallow Underwater Acoustic OFDM Communication via Simulation Platform

Applied Sciences, 2019
The performance of underwater acoustic (UWA) communication is heavily dependent on channel estimation, which is predominantly researched by simulating UWA channels modelled in complex and dynamic underwater environments.
Xiaoyu Wang, Xiaohua Wang, Rongkun Jiang, Weijiang Wang, Qu Chen, Xinghua Wang   +5 more
doaj   +1 more source

Bar-Wave Calibration of Acoustic Emission Sensors

Applied Sciences, 2017
This study extended a bar-wave calibration method for acoustic emission (AE) sensors. It combined laser interferometer displacement measurements and the wave propagation medium of a long bar, excited at its end with an ultrasonic transducer driven by a ...
Kanji Ono, Takahiro Hayashi, Hideo Cho
doaj   +1 more source

Quantum field theory of the van der Waals friction [PDF]

, 2006
The van der Waals friction between two semi-infinite solids, and between a small neutral particle and semi-infinite solid is reconsidered on the basis of thermal quantum field theory in the Matsubara formulation. The calculation of the friction to linear
A. A. Abrikosov, A. I. Volokitin, A. I. Volokitin, A. Nourtier, B. E. Sernelius, B. N. J. Persson, E. M. Lifshitz, E. M. Lifshitz, G. Mahan, L. D. Landau, M. L. Levin, N. Arkani-Hamed, P. Debye, S. M. Rytov, S. M. Rytov, V. G. Polevoi, V. G. Polevoi   +16 more
core   +2 more sources

Experimental Study on a Three-Dimensional Wall Jet

Journal of Fluid Science and Technology, 2007
This study is to clarify the flow structure of a three-dimensional wall jet discharged tangentially on a flat surface from a circular nozzle. Distributions of the mean velocities and fluctuating velocities in a cross section of a fully-developed flow ...
Yoshihiro INOUE, Haruhisa YANO, Shintaro YAMASHITA   +2 more
doaj   +1 more source

Non-contact friction between nanostructures [PDF]

, 2003
We calculate the van der Waals friction between two semi-infinite solids in normal relative motion and find a drastic difference in comparison with the parallel relative motion.
Persson, B. N. J., Volokitin, A. I.
core   +2 more sources

Sine-Gordon Field Theory for the Kosterlitz-Thouless Transitions on Fluctuating Membranes

, 1995
In the preceding paper, we derived Coulomb-gas and sine-Gordon Hamiltonians to describe the Kosterlitz-Thouless transition on a fluctuating surface. These Hamiltonians contain couplings to Gaussian curvature not found in a rigid flat surface.
C. Itzykson, D.J. Amit, D.J. Amit, D.R. Nelson, F. David, H. Bateman, J. Zinn Justin, Jeong-Man Park, M. Park, S. Coleman, T. C. Lubensky, W. Cai   +11 more
core   +1 more source

A rational method for determining intermittency in the transitional boundary layer [PDF]

, 2019
A new rational procedure is proposed for determining the intermittency in the streamwise direction. One of the key parameters for the intermittency determination is the selection of a threshold value, which often involves a certain level of subjectivity.
Atkin, C.J., Veerasamy, D.
core   +2 more sources

Interface-mediated interactions: Entropic forces of curved membranes

, 2011
Particles embedded in a fluctuating interface experience forces and torques mediated by the deformations and by the thermal fluctuations of the medium. Considering a system of two cylinders bound to a fluid membrane we show that the entropic contribution
E. Kreyszig, H. B. G. Casimir, Hervé Mohrbach, M. Do Carmo, M. E. Fisher, M. Kresch, Martin Michael Müller, P. Biscari, Pierre Gosselin, W. Helfrich   +9 more
core   +1 more source