Results 21 to 30 of about 131,996 (288)

Joint Unitary Triangularization for Gaussian Multi-User MIMO Networks [PDF]

open access: yes, 2015
The problem of transmitting a common message to multiple users over the Gaussian multiple-input multiple-output broadcast channel is considered, where each user is equipped with an arbitrary number of antennas.
Erez, Uri   +3 more
core   +2 more sources

Linear Precoders for Non-Regenerative Asymmetric Two-way Relaying in Cellular Systems [PDF]

open access: yes, 2013
Two-way relaying (TWR) reduces the spectral-efficiency loss caused in conventional half-duplex relaying. TWR is possible when two nodes exchange data simultaneously through a relay.
Budhiraja, Rohit   +2 more
core   +1 more source

MODELING OF HEAT EXCHANGE AT TURBULENT FLOW IN FLAT CHANNELS WITH SYMMETRIC TURBULIZERS ON BOTH PARTIES

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2019
Objectives. Mathematical modeling of heat transfer in flat channels with turbulators symmetrically located on both its sides, depending on the cross section of the turbulators.Methods.
I. E. Lobanov
doaj   +1 more source

Precoded FIR and Redundant V-BLAST Systems for Frequency-Selective MIMO Channels [PDF]

open access: yes, 2007
The vertical Bell labs layered space-time (V-BLAST) system is a multi-input multioutput (MIMO) system designed to achieve good multiplexing gain.
Chen, Chun-yang, Vaidyanathan, P. P.
core   +1 more source

NUMERICAL INVESTIGATION OF FLOW FIELD IN PROTON EXCHANGE MEMBRANE FUEL CELL AT DIFFERENT CHANNEL GEOMETRIES [PDF]

open access: yesJournal of Engineering Science and Technology, 2018
This paper reports the three-dimensional modelling of a proton exchange membrane fuel cell (PEMFC) with straight flow field designs. Different shapes of both anode and cathode channels have been considered. Three geometrical configurations with same area:
R. HADJADJ, W. KAABAR
doaj  

On the absorption and production cross sections of $K$ and $K^*$ [PDF]

open access: yes, 2017
We have computed the isospin and spin averaged cross sections of the processes $\pi K^*\to \rho K$ and $\rho K^*\to \pi K$, which are crucial in the determination of the abundances of $K^*$ and $K$ in heavy ion collisions. Improving previous calculations,
Abreu, L. M.   +4 more
core   +4 more sources

Collapse of triangular channels in a soft elastomer [PDF]

open access: yesApplied Physics Letters, 2013
We extend classical solutions in contact mechanics to examine the collapse of channels in a soft elastomer. These channels have triangular cross-section and collapse when pressure is applied to the surrounding elastomer. Treating the walls of the channel as indenters that penetrate the channel base, we derive an algebraic mapping between pressure and ...
Tepáyotl-Ramírez, Daniel   +3 more
openaire   +1 more source

Triple Michelson Interferometer for a Third-Generation Gravitational Wave Detector [PDF]

open access: yes, 2009
The upcoming European design study `Einstein gravitational-wave Telescope' represents the first step towards a substantial, international effort for the design of a third-generation interferometric gravitational wave detector.
  +28 more
core   +1 more source

Simultaneous Triangular Waveform Signal and Microwave Signal Generation Based on Dual-Loop Optoelectronic Oscillator

open access: yesIEEE Photonics Journal, 2016
A self-starting triangular waveform and microwave signal generator based on a dual-loop optoelectronic oscillator (OEO) is proposed. In this scheme, two continuous waves (CWs) with different wavelength are emitted from two laser diodes (LDs) to form two ...
Tingwei Wu   +6 more
doaj   +1 more source

Numerical simulation of nanofluids flow and heat transfer through isosceles triangular channels [PDF]

open access: yesJournal of Particle Science and Technology, 2018
Nanofluids are stable suspensions of nanoparticles in conventional heat transfer fluids (base fluids) that exhibit better thermal characteristics compared to those of the base fluids. It is important to clarify various aspects of nanofluids behavior.
Mehri Hejri   +2 more
doaj   +1 more source

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