Search
Now showing items 81-90 of 265
OFDM with transmit and receive antenna selection based on subcarrier groups
(IEEE, 2012)
In this paper the performance of coded OFDM transmission over multiple antennas is explored when joint transmit and receive antenna selection is employed. The channel is assumed as Rayleigh frequency selective fading channel ...
Capital Markets Trade Openness and Productivity in Emerging Economies Introduction
(M.E Sharpe Inc., 2011)
[Abstract Not Available]
Joint Channel Estimation and Equalization for OFDM based Broadband Communications in Rapidly Varying Mobile Channels
(IEEE, 2010)
This paper is concerned with the challenging and timely problem of channel estimation for orthogonal frequency division multiplexing (OFDM) systems in the presence of frequency selective and very rapidly time varying ...
Fractal Features and Structural Morphological Optical Characteristics of Sol-Gel Derived Silica Nanoparticled Thin Films
(Polish Acad Sciences Inst Physics, 2018)
Nanostructured silica films using a simple and effective sol-gel spin coating technique were synthesized and the influence of ammonia/sol ratios on the particle size and thickness of this film was investigated. In addition ...
Thiols malonaldehyde status in the Turkish and total antioxidant patients with type 2 diabetes mellitus
(Tohoku Univ Medical Press, 2003)
Non-insulin-dependent (Type 2) diabetes mellitus (NIDDM) is a risk factor for cardiovascular diseases (CVD). Oxidative stress mechanisms are often reported to be implied in type 2 diabetes mellitus. In order to determine ...
Hemodilution during off-pump coronary artery bypass grafting: Can we improve flow and reduce hypercoagulability?
(Forum Multimedia Publishing LLC., 2003)
Background: The aim of this study was to compare intraoperative coronary graft flows performed on pump and off pump and to evaluate the effects of hemodilution on coronary graft flows in off-pump coronary artery bypass ...
Repair of recurrent patent ductus arteriosus in an adult with cardiopulmonary bypass
(Blackwell Futura Publishing Inc, 2003)
Recurrence of ductal patency is a rarely encountered complication in surgical repair of patent ductus arteriosus (PDA). An adult patient with ductal recurrency underwent closure of ductus by using cardiopulmonary bypass ...
Effect of low-dose methyl prednisolone on serum cytokine levels following extracorporeal circulation
(Arnold Hodder Headline Plc., 1999)
The systemic inflammatory response to cardiopulmonary bypass (CPB) is associated with increased production of cytokines. This systemic inflammatory response characterized by the activation of interleukin-6 (IL-6) and ...
Phase transitions between different spin-glass phases and between different chaoses in quenched random chiral systems
(Amer Physical Soc., 2017)
The left-right chiral and ferromagnetic-antiferromagnetic double-spin-glass clock model with the crucially even number of states q = 4 and in three dimensions d = 3 has been studied by renormalization-group theory. We find ...
RedNemo: topology-based PPI network reconstruction via repeated diffusion with neighborhood modifications
(Oxford University Press, 2017)
Motivation: Analysis of protein-protein interaction (PPI) networks provides invaluable insight into several systems biology problems. High-throughput experimental techniques together with computational methods provide ...