Results 71 to 80 of about 57,027 (186)

Diffusion tensor imaging in anterior interosseous nerve syndrome – functional MR Neurography on a fascicular level

open access: yesNeuroImage: Clinical, 2019
Purpose: By applying diffusor tensor imaging (DTI) in patients with anterior interosseous nerve syndrome (AINS), this proof of principle study aims to quantify the extent of structural damage of a peripheral nerve at the anatomical level of individual ...
Tim Godel   +8 more
doaj   +1 more source

A Suboptimal Receiver with Turbo Block Coding for Ultra-Wideband Communications [PDF]

open access: yes, 2005
In this paper, the performance of adaptive equalization and turbo product coding is investigated for pulse-based UWB communications in short-range indoor environments.
Aquino, Sim   +2 more
core   +1 more source

New principle of organization of working process of air conditioning systems at railway and sea transport [PDF]

open access: yesTransport Problems, 2008
An indispensable component of ensuring safe control of railway and sea transport in conditions of hot climate is maintenance of comfortable temperature of air in control cabins and living spaces.
Andrey KRAJNIUK, Aleksander KRAJNIUK
doaj  

Turbo Detection of Symbol-Based Non-Binary LDPC-Coded Space-time Signals using Sphere Packing Modulation

open access: yes, 2005
A recently proposed space-time signal construction method that combines orthogonal design with sphere packing, referred to here as (STBC-SP), has shown useful performance improvements over Alamouti’s conventional orthogonal design.
Alamri, O.R.   +3 more
core  

The example of BTJE flow path contamination assessment with anti-icing fluid using statistical models

open access: yesНаучный вестник МГТУ ГА
Contamination of the compressor flow path is one of the most prevalent issues encountered during the operation of aircraft gas turbine engines (GTEs). During operation in winter, ingestion of anti-icing fluids and de-icing agents into the compressor flow
S. V. Nekrasov, B. A. Chichkov
doaj   +1 more source

Inter-carrier interference mitigation for underwater acoustic communications [PDF]

open access: yes
Communicating at a high data rate through the ocean is challenging. Such communications must be acoustic in order to travel long distances. The underwater acoustic channel has a long delay spread, which makes orthogonal frequency division multiplexing ...
Daly, Erica Lynn
core  

Iterative Equalization and Source Decoding for Vector Quantized Sources

open access: yes, 2006
In this contribution an iterative (turbo) channel equalization and source decoding scheme is considered. In our investigations the source is modelled as a Gaussian-Markov source, which is compressed with the aid of vector quantization. The communications
Hanzo, L.   +3 more
core  

Maximum Likelihood Turbo Iterative Channel Estimation for Space-Time Coded Systems and Its Application to Radio Transmission in Subway Tunnels

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
This paper presents a novel channel estimation technique for space-time coded (STC) systems. It is based on applying the maximum likelihood (ML) principle not only over a known pilot sequence but also over the unknown symbols in a data frame.
González-López Miguel   +2 more
doaj   +1 more source

Entropy generation and jet engine optimization

open access: yes, 2010
In 2009, it was shown that, with an original approach to hydrodynamic cavitation, a phenomenological model was realized in order to compute some of the physical parameters needed for the design of the most common technological applications (turbo ...
Lucia, Umberto
core  

Research Status and Development Trend of Compressed Air Energy Storage Technology

open access: yes南方能源建设
[Introduction] Compressed air energy storage (CAES), as a long-term energy storage, has the advantages of large-scale energy storage capacity, higher safety, longer service life, economic and environmental protection, and shorter construction cycle ...
Zhaowei YUAN, Yifan YANG
doaj   +1 more source

Home - About - Disclaimer - Privacy