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السجلات المعروضة 21 -- 30 من 86
Comparison of relaying strategies for cooperative diversity systems with adaptive modulation
(
IEEE
, 2009 , Conference Paper)
In this paper, we propose several relay selection schemes for cooperative diversity systems with adaptive transmission. The proposed schemes are based on dual-hop relaying with multiple relays. We analyze the performance ...
A Resolver Angle Estimator Based on Its Excitation Signal
(
IEEE
, 2009 , Article)
A resolver generates a pair of signals proportional to the sine and cosine of the angular position of its shaft. A new low-cost method for converting the amplitudes of these sine/cosine transducer signals into a measure ...
Operational modeling of multistream heat exchangers with phase changes
(
Wiley Subscription Services, Inc., A Wiley Company
, 2009 , Article)
Multistream heat exchangers (MSHE) enable the simultaneous exchange of heat among multiple streams, and are preferred in cryogenic processes such as air separation and LNG. Most MSHEs are complex; proprietary and involve ...
One and two sample confidence intervals for estimating the mean of skewed populations: an empirical comparative study
(
TAYLOR & FRANCIS LTD
, 2009 , Article)
In this paper we consider and propose some confidence intervals for estimating the mean or difference of means of skewed populations. We extend the median t interval to the two sample problem. Further, we suggest using the ...
Interleukin-2: Evaluation of routes of administration and current delivery systems in cancer therapy
(
Wiley Subscription Services, Inc., A Wiley Company
, 2009 , Article)
Despite the fact that different administration routes and delivery systems have been used for interleukin-2 (IL-2) delivery, little has been reported regarding the most efficient strategies used to deliver IL-2 in a nontoxic, ...
Functional Overexpression and Purification of a Codon Optimized Synthetic Glucarpidase (Carboxypeptidase G2) in Escherichia coli
(
Springer US
, 2009 , Article)
Glucarpidase (former name: carboxypeptidase G2, or CPG2) is a bacterial enzyme that is widely used in detoxification of the cytotoxic drug, methotrexate, and in Antibody Directed Enzyme Prodrug Therapy for cancer treatment. ...
High prevalence of the risk of overweight and overweight among Qatari children ages 9 through 11
(
Emerald
, 2009 , Article)
Purpose – The purpose of this paper is to estimate the prevalence of the risk of overweight and
overweight in Qatari children ages 9 through 11 and to compare the prevalence using CDC and IOTF
cut-offs.
Design/methodo ...
Artificial neural network-based kinematics Jacobian solution for serial manipulator passing through singular configurations
(
Elsevier Ltd
, 2009 , Article)
Singularities and uncertainties in arm configurations are the main problems in kinematics robot control resulting from applying robot model, a solution based on using Artificial Neural Network (ANN) is proposed here. The ...
الايمان كدافع لتشجيع العمل التطوعي : الهلال الأحمر الاماراتي كنموذج
(
جامعة الأزهر - كلية أصول الدين و الدعوة بالزقازيق
, 2009 , Article)
تسهم الخدمات التطوعية بدور كبير في بناء كثير من الحضارات و المجتمعات على مر العصور. حيث انها لا تمثل مهنة وبصفتها عملاً خالياً من الربح يقوم به مجموعة من الأفراد من اجل الغير. وتأخذ أشكالا وانماطاً متعددة منها الذاتية ومنها ...
Thermo elastic analysis of functionally graded rotating disks with temperature-dependent material properties: uniform and variable thickness
(
Springer Science+Business Media, B.V.
, 2009 , Article)
A thermo elastic analysis is presented for axisymmetric rotating disks made of functionally graded material (FGM) with variable thickness. Material properties are assumed to be temperature-dependent and graded in the radial ...