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السجلات المعروضة 111 -- 120 من 381
Stratigraphy and sedimentology of the Hofuf Formation in the State of Qatar in relation to the tectonic evolution of the East Arabian Block
(
Sultan Qaboos University
, 2002 , Article)
Well-exposed, fine-grained to pebbly coarse-grained fluvial sandstones of Late Miocene to Pleistocene age crop out in the south-central and south-western parts of Qatar. These sandstones belong to the Hofuf Formation and ...
Park's transformation application for power system harmonics identification and measurements
(
Taylor & Francis
, 2003 , Article)
This paper presents the application of Park's transformation for identifying and measuring power system harmonics. One of the advantages of the proposed technique is that it does not need a model for the harmonics components ...
Novel thorium membrane sensors with anionic response based on trioctylphosphine oxide and toluate ionophores
(
Wiley-VCH Verlag
, 2008 , Article)
Two novel potentiometric polymeric membrane sensors for rapid and accurate determination of thorium are described. These are based on the use of trioctylphosphine oxide (TOPO) and thorium toluate (Th-TA) as ionophores ...
Thermalization times of positrons in molecular gases
(2000 , Article)
The time that a particle takes to reach thermal equilibrium in gas is a gross measure of the efficiency with which such particle can exchange its kinetic energy with the medium. The time taken for positrons to reach thermal ...
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 time-frequency defect classifier for NDT applications
(
IEEE
, 2009 , Conference Paper)
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 and characterize the defects commonly ...
Towards an electronic voting system for the state of Qatar
(
IEEE
, 2009 , Conference Paper)
In this paper we propose an electronic voting system for the state of Qatar. The system allows Qataris people to vote online from their preferred locations, (homes or offices) without the need to move physically to the ...
Digital measurements of symmetrical components of a multiphase power system
(
IEEE
, 2004 , Conference Paper)
The paper presents a digital algorithm method for measurements of symmetrical components of a multiphase power system, four phases. The models for symmetrical components of the multiphase system are first developed, and ...
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 ...
Text summarization based on conceptual data classification
(
IGI Global
, 2008 , Book chapter)
In this paper, we present an original approach for text summarization using conceptual data classification. We show how a given text can be summarized without losing meaningful knowledge and without using any semantic or ...