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Now showing items 241-250 of 259
Economical study by determining the optimum thickness of insulation of some heaters utilized in Qatar refinery
(
International Information and Engineering Technology Association
, 2008 , Article)
Some furnaces and heaters utilized in the industry in Qatar (such as Qatar Refinery) are analyzed economically by the determination of the optimum thickness of insulation for each of these equipments. Different common ...
Spectroscopic studies on the charge-transfer complex [VO(acac) 2]I5 formed in the reaction of oxovanadium(IV) acetylacetonate with iodine
(2005 , Article)
Spectroscopic Studies on the Charge-Transfer Complex [VO(acac)2]I5 Formed in the Reaction of Oxovanadium(IV)acetylacetonate with Iodine
Prevention of gallium arsenide photocorrosion by an epoxy adhesion layer
(
Elsevier Ltd
, 2004 , Article)
Coating of gallium arsenide with an adhesion layer of commercial epoxy prevented its photocorrosion. A two-component room temperature curing adhesive paste (Araldite 2014) has been selected. When GaAs/Araldite was employed ...
The Gulf: A young sea in decline
(
Elsevier Ltd
, 2009 , Article)
This review examines the substantial changes that have taken place in marine habitats and resources of the Gulf over the past decade. The habitats are especially interesting because of the naturally high levels of temperature ...
Profiling consumers: A study of Qatari consumers’ shopping motivations
(
Elsevier Ltd
, 2006 , Article)
The paper investigates reasons consumers go shopping in Doha, Qatar. Four hundred supermarket shoppers completed self-administered surveys regarding their attitudes toward 57 individual shopping motivation items. The paper ...
Autonomous corrosion detection in gas pipelines: A hybrid-fuzzy classifier approach using ultrasonic nondestructive evaluation protocols
(
IEEE
, 2009 , Article)
In this paper, a customized classifier is presented for the industry-practiced nondestructive evaluation (NDE) protocols using a hybrid-fuzzy inference system (FIS) to classify the corrosion and distinguish it from the ...
Fuzzy Logic in neurosurgery: predicting poor outcomes after lumbar disk surgery in 501 consecutive patients
(
Elsevier
, 2009 , Article)
Background: Despite a lot of research into patient selection, a significant number of patients fail to benefit from surgery for symptomatic lumbar disk herniation. We have used Fuzzy Logic-based fuzzy inference system (FIS) ...
Harmonic modeling of linear and nonlinear loads based on Kalman filtering algorithm
(
Elsevier
, 2004 , Article)
Most harmonic nonlinear load modeling techniques developed in the last two decades, assume that the load connected to the load bus has a constant admittance, inductive or capacitive, which depends on the mode of operation ...
Fuzzy linear parameter estimation algorithms: A new formulation
(
Elsevier
, 2002 , Article)
In this paper, we present a new formulation of a fuzzy linear estimation problem as one of the linear programming where the objective is to minimize the spread of the data points, subject to constraints on each measurement ...
Frequency and harmonics evaluation in power networks using fuzzy regression technique
(
Elsevier
, 2003 , Article)
A new technique for frequency and harmonic evaluation in power networks is proposed in this paper. This technique is based on fuzzy linear regression and uses the digitized voltage samples, which are fuzzy numbers, to ...