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Now showing items 91-100 of 109
A new iterative learning control method for PWM inverter current regulation
(
IEEE
, 2003 , Conference Paper)
AC servomotor speed or current controller based on PI control and/or optimal control, can not eliminate the cyclical fluctuations of speed or current when subject to periodic disturbances. PWM inverters output waveforms ...
Research in undergraduate education at Qatar University: EE department experience
(
IEEE
, 2007 , Conference Paper)
This paper presents the research efforts taking place at Qatar University, the only national university in Qatar. Being a teaching institute, conducting research faces many challenges. The paper focuses on the experience ...
A novel converter for sinusoidal encoders
(
IEEE
, 2006 , Conference Paper)
The paper presents a novel and low cost method for determining the angle from sine and cosine signals generated by angular position sensors such as resolvers and sinusoidal encoders. The proposed scheme is based upon the ...
Fuzzy Expert System for Defect Classification for Non-Destructive Evaluation of Petroleum Pipes
(
IEEE
, 2007 , Conference Paper)
In this paper, an expert system has been outlined to classify the defects in metallic petroleum pipelines using acoustic techniques with non-destructive evaluation (NDE) protocols, the proposed system maps the quantitative ...
Lifetime maximization with predictive power management in selective relay networks
(
Institute of Electrical and Electronics Engineers Inc.
, 2009 , Conference Paper)
A diversity scheme which exploits the existence of a source-destination path to improve the lifetime and outage probability of a wireless selective relay network with Amplifyand-Forward (AF) relays is proposed and studied. ...
A new angle determination method for resolvers
(
IEEE
, 2008 , Conference Paper)
A new low cost method for converting the amplitudes of the sine/cosine signals generated by the resolver into a measure of the angle of its shaft. The new method operates without lookup tables (LUT), and takes advantage ...
Lifetime maximization for greedy selective relay strategies
(2009 , Conference Paper)
In this paper we propose a new algorithm for selective relay strategies with Amplify-and-Forward (AF) relays which improves the relay network lifetime. The lifetime of the relay network is defined as the maximum number of ...
Compositional transformations in ion implanted polymers
(
Elsevier
, 2005 , Conference Paper)
Changes of surface layer composition produced by ion bombardment of polyethylene and polypropylene samples were studied. These materials are under consideration for load bearing surfaces in biological and technical ...
Mechanical and thermal properties of gamma-ray irradiated polyethylene blends
(
Elsevier
, 2003 , Conference Paper)
In this work, the results obtained by gamma-ray irradiation of polyethylene (PE) blends are presented. The blends were produced by injection molding at 220°C with different compositional ratios, i.e. 100/0, 15/85, 25/75, ...
MB-C: Check-in mobile application using barcodes
(
International Business Information Management Association, IBIMA
, 2008 , Conference Paper)
This project involves the design and development of a mobile application, called Mobile Bar-Code (MB-C) that uses the bar-code concept in the process of check-in to the provider's venue or facility. The MB-C integrates ...