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Now showing items 11-20 of 110
A methodology for time-frequency image processing applied to the classification of nonstationary multichannel signals using instantaneous frequency descriptors with application to newborn EEG signals
(
Springer
, 2003 , Article)
This article presents a general methodology for processing non-stationary signals for the purpose of classification and localization. The methodology combines methods adapted from three complementary areas: time-frequency ...
Tectonic Setting and Petrogenetic Evolution of Wadi Erier Rocks, South Eastern Desert, Egypt
(
Qatar University
, 2003 , Article)
A combination of geologic, petrographic and chemical criteria is used to classify the Erier basement rocks into three suites namely, the metagabbro-diorite (MGD) suite, the tonalite-granodiorite (TG) suite and the ...
Complications of Diabetes Mellitus Among Patients Attending Outpatient Clinics in Qatar
(
Hamad bin Khalifa University Press (HBKU Press)
, 2003 , Article)
The objective of this study was to explore the prevailing complications of diabetes mellitus and to explore some of the associated factors among Qatari patients previously diagnosed as having diabetes mellitus. A random ...
أثر البعد الاجتماعي لمهمة الشعر في توحيد النقد عند ابن طباطبا عيار الشعر نموذجا
(
Qatar University
, 2003 , Article)
حاولت الدراسة أن تستنطق السياقات النقدية ذات المضامين الاجتماعية
في كتاب عيار الشعر من أجل البرهنة على أن ابن طباطبا في حديثه عن أسرار الصنعة الشعرية كان ينطلق في آرائه النقدية عن فهم الناس للمهمة الاجتماعية للشعر جاء ...
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 ...
Improvement of the DSATUR algorithm for graph coloring
(
Arabian Gulf University
, 2003 , Article)
In this paper we discuss the deterministic Brelaz's DSATUR algorithm for graph coloring. We propose a simple modification that improves the performance of the algorithm. This modification consists of assigning the color ...
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 ...
Chronostratigraphy and geochemical characterization of volcanic rocks from the Hormuz Complex: Constraints from the Halul Island, The State of Qatar
(
sultan qaboos university
, 2003 , Article)
Geochemical and Sr-Nd isotopic data are reported for volcanic rocks in the Hormuz Complex, Halul Island, Eastern Qatar. Two groups of volcanic rocks are distinct in their geochemical characteristics. Group 1 samples have ...
Activation and stabilization of gallium arsenide anode in an aqueous photoelectrochemical cell
(
Elsevier
, 2003 , Article)
The formation of a porous layer on the surface of gallium arsenide anode, n-GaAs, increases photogenerated currents significantly. This layer was formed as a result of an anodic polarization of illuminated n-GaAs in acidified ...
Two digital filtering algorithms for fast estimation of symmetrical components in a power system: A static estimation approach
(
Elsevier
, 2003 , Article)
This paper presents the application of two digital filters working together for fast estimation of power systems symmetrical components. The three-phase unbalanced system is transformed to two phases using α–β-transformation. ...