Results 251 to 260 of about 747,519 (293)

Characterization of the underwater medium as an acoustical horizontal transmission channel

IEEE International Conference on Acoustics Speech and Signal Processing, 1993
From many results obtained in the laboratory, the authors try to characterize the underwater medium as a horizontal acoustic communication channel. They distinguish two fields. The first one deals with short or middle range transmission (between 1 and 15 km) in which many parameters have an influence: those connected to the physics of the medium (sound
Gerard Loubet, Geneviève Jourdain
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Horizontal Drilling With Dual-Channel Drillpipe

Journal of Petroleum Technology, 2017
This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 184683, “Horizontal Drilling With Dual-Channel Drillpipe,” by O.M. Vestavik and J. Thorogood, Reelwell; E. Bourdelet, Total; and B. Schmalhorst and J.P. Roed, DEA Deutsche Erdoel, prepared for the 2017 SPE/IADC Drilling Conference and Exhibition, The Hague,
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Free convection heat transfer in horizontal channels and over a horizontal surface

Journal of Engineering Physics, 1965
Free convective heat transfer of a fluid in horizontal channels and above a horizontal surface is theoretically analyzed. The interaction of the fluid with the channel walls may be divided into two parts: formation of vortex flow cells, and heat transfer in the induced flow over the walls.
A. I. Leont'ev, A. G. Kirdyashkin
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TURBULENT FORCED CONVECTION IN A HORIZONTAL CHANNEL WITH RECTANGULAR OBSTACLE

International Symposium on Advances in Computational Heat Transfer, 2008
This paper presents a numerical investigation of turbulent forced convective f low in a horizontal channel filled with rectangular obstacles located on the lower surface. An exchanger isothermal test plate is embedded in the lower wall, in the fully developed region of the flow.
Joulin, A., Cherif, Yassine, Zalewski, Laurent, Lassue, Stéphane, Rousse, D.   +4 more
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Film condensation in horizontal microchannels: Effect of channel shape

International Journal of Thermal Sciences, 2005
The paper gives a progress report on a theoretical study of film condensation in microchannels. The model takes account of surface tension, vapor shear stress and gravity. The effect of channel shape is investigated for condensation of R134a in channels with cross sections: square, triangle, inverted triangle, rectangle with longer side vertical and ...
Huasheng Wang, John W. Rose
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Forced convection in horizontal porous channels with hydrodynamic anisotropy

International Journal of Heat and Mass Transfer, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Degan, G., Zohoun, S., Vasseur, P.
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Effect of Settlement on Dense Slurry Flow in a Horizontal Channel

Electronic and Photonic Packaging, Electrical Systems Design and Photonics, and Nanotechnology, 2005
The flow of a dense slurry where the filling particles are heavier than the liquid carrier is analyzed by considering the particle-particle and particle-wall interactions, which were derived from fluid film lubrication theory. The effect of settlement causes the flow behavior to depart from that of slug flow (described in [1], also submitted to this ...
R. Yang, D. C. Sun, Seungbae Park
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Horizontal and Vertical Side Channel Analysis of a McEliece Cryptosystem

IEEE Transactions on Information Forensics and Security, 2016
This paper presents horizontal and vertical side channel analysis techniques for an implementation of the McEliece cryptosystem. The target of this side-channel attack is a state-of-the-art field-programmable gate array (FPGA) implementation of the efficient quasi-cyclic moderate-density parity-check McEliece decryption operation, as presented at ...
Cong Chen 0001, Thomas Eisenbarth 0001, Ingo von Maurich, Rainer Steinwandt   +3 more
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Supercritical flow stability in horizontal channels

Nuclear Engineering and Design, 2008
Abstract An analytical study of supercritical flow instability in two horizontal parallel channels is reported herein—a topic that would be of immense value to new reactor designs that propose to use supercritical light water on the primary side. The finding is that supercritical flow instability in horizontal channels is driven primarily by the ...
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Horizontal Channel Erosion on the Rivers of Udmurtia

Soil erosion and river channel processes
The results of a study of channel displacement for 2000–2022 in 55 key areas located on rivers of different orders, flowing in different landscapes of Udmurtia, are presented. The erosion rates were determined using benchmarks and tacheometric survey. To analyze the obtained results, the rivers were divided into 4 groups according to the magnitude of ...
I. I. Rysin, I. I. Grigorev, L. N. Petukhova   +2 more
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