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Article
UTILIZATION OF CLONAL SELECTION ALGORITHM IN PERFORMANCE ANALYSIS OF UNITARY CAPON METHOD
إستخدام خوارزمية الاختيارالنسخي في تحليلِ أداء طريقة Capon المتكاملة

Author: Ali Abdul Elah Noori
Journal: AL-TAQANI مجلة التقني ISSN: 1818653X Year: 2011 Volume: 24 Issue: 8 Pages: E23-E31
Publisher: Foundation of technical education هيئة التعليم التقني

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Abstract

In this paper, the Clonal Selection Algorithm (CSA) is presented for extraction the direction of arrival of the several signals impinging on uniform linear arrays using a very efficient computational procedure in which the complexity of the computation can be reduced significantly by using a unitary Capon method. Using this method with CSA will enable to expect not only the higher computation efficiency but also the higher estimation accuracy of the direction of arrival angles of incident signals. A good performance was demonstrated via a number of numerical examples by using environment of Matlab 2009a program to examine the effect a number of sensor and number of signal snapshots on performance of the unitary Capon method based on the CSA.

يُقدم في هذا البحث خوارزمية الاختيارالنسخي لاستخراج اتجاهات الوصول لإشارات متعددة ساقطة على مصفوفة الهوائيات الخطية المنتظمة مستعملاَ إجراءِ حسابيِ كفوءِ جداَ الذي فيه يُمكنُ أَن يُقلل تعقيد الحساب بشكل ملحوظ باستعمال طريقة Capon المتكاملة. سَيُمكّنُ إستعمال هذه الطريقة مع خوارزمية الاختيارالنسخي لتَوَقُع ليس فقط اعلى كفاءة الحسابِية لكن ايضا اعلى دقة تخمينية من اتجاه زوايا وصول الاشارات الساقطة. يُوضح الاداء الجيد للخوارزمية خلال عدد من نتائج المحاكاة باستخدام بيئة برنامج a2009 Matlab لفحص تأثير عدد المتحسسات (K) و عدد العينات الاشارة على اداء طريقة capon المتكاملة بالاعتماد على خوارزمية الاختيار النسخي.


Article
Options of the Treatment in Steroid Resistant Nephrotic Syndrome in Children in Central Child Teaching Hospital-Baghdad

Authors: Kasim Rahi Issa --- Bushra Jalil Salih --- Taghreed F. Mohammed
Journal: Iraqi Academic Scientific Journal المجلة العراقية للاختصاصات الطبية ISSN: 16088360 Year: 2010 Volume: 9 Issue: 3 Pages: 316-320
Publisher: The Iraqi Borad for Medical Specialization المجلس العراقي للاختصاصات الطبية

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Abstract

ABSTRACT: BACKGROUND: The therapy of steroid resistant nephrotic syndrome (SRNS) is still a matter of controversy. OBJECTIVE: To assess the options of treatment in SRNS PATIENT AND METHOD: A retrospective study to 50 patients randomly selected in the Central Child Teaching Hospital during study period from Jan. 2006 to July 2008. The patients age were between 6 months.-18 years. All patients who had failed to achieve an improvement in proteinuria after minimum of 4 weeks (up to 8 weeks) of prednisolone (PDN) in a dosage 2 mg/kg/day were taken. Only the patients with idiopathic nephrotic syndrome (45 patients) were involved in the study but the patients with secondary nephrotic syndrome and congenital neprosis were excluded from the study. Each patient were individualized to the type of pathology and to the type of medication used. RESULTS: Forty five patients were included in the study, the age range between 6 months.-18 years. Twenty eight patients were male and 17 were female, M: F ratio 1.64: 1. Regarding the type of pathology, 20 patients with focal segmental glomerulosclerosis (FSGS), 11 patients with minimal change nephrotic syndrome (MCNS), 8 patients with diffuse mesangial proliferation (DMP) and 6 patients were unknown biopsy (not down biopsy). The drugs that used were methyl prednisolone (MP) in 17 patients, Every other day steroid (EODS) in 10 patients, cyclosporineA (CsA) plus EODS in 16 patients (10 patients as first option and 6 patients as second option), cyclophosphamide (CYS) used in 8 patients (6 patients as first option and 2 patients as second option) and chlorambucil were used in 2 patients only. The response was higher in patients who received EODS (50%), followed by the patients who received CsA plus EODS (25%) then the patients who received MP(23.5%) and the patients who received CYS(12.5%) and chlorambucil(zero%). The response to treatment was higher in females than males, 11 out of 28 males (39.28%) responded to treatment while 7 of 17 female (41.17%) responded to treatment. The patients with early presentation responded to treatment higher than those with late presentation, so 12 of 19 patients (63.15%) presented early while 10 of 26 patients (38.46%) presented late. According to histopathology, the patients with unknown etiology had higher rate of response, 3 out of 6 patients (50%) responded to treatment followed by 7 of 20 (35%) patients with FSGS, then 2 of 8 (25%) patients with DMP, then 2 of 11 (18.18%) patients with MCNS. CONCLUSION: The drugs used are the common drugs and EODS is preferable type of medication used in SRNS


Article
Collision Avoidance Using Cat Swarm Algorithm for Multi Mobile Robot Path Planning in Dynamic Environment
تجنب التصادم بااستخدام خوازمية سرب القطط من اجل تخطيط مسار للعديد من الروبوت الناقل في بيئه متحركه

Authors: Themar Ali Jaleel ثمار علي جليل --- Alia Karim Abdul Hassan علياء كريم عبد الحسن
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2016 Volume: 57 Issue: 3C Pages: 2348-2359
Publisher: Baghdad University جامعة بغداد

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Abstract

In this paper, we proposed a hybrid control methodology using improved artificial potential field with modify cat swarm algorithm to path planning of decoupled multi-mobile robot in dynamic environment. The proposed method consists of two phase: in the first phase, Artificial Potential Field method (APF) is used to generate path for each one of robots and avoided static obstacles in environment, and improved this method to solve the local minimum problem by using A* algorithm with B-Spline curve while in the second phase, modify Cat Swarm Algorithm (CSA) is used to control collision that occurs among robots or between robot with movable obstacles by using two behaviour modes: seek mode and track mode. Experimental results show that the proposed method success to find a complete, optimal, and collision free path for all robot.

في هذه الورقة، اقترحنا منهجية تحكم الهجين باستخدام تحسين Artificial potential field مع تعديل خوارزمية سرب القطط لتخطيط مسار لعديد من الروبوت المتحرك الغير المزدوجه في بيئة ديناميكية. تتكون الطريقة المقترحة من مرحلتين: في المرحلة الأولى، يتم استخدام طريقه (APF) Artificial potential field لتوليد مسار لكل واحد من الروبوتات وتجنب العقبات ثابتة في البيئة، وتحسن هذه الطريقة في حل الحد الأدنى من مشكلة محلية باستخدام خوازميه *A مع منحنيات B-Splineبينما في المرحلة الثانية، يستخدم تعديل خوازمية سراب القطط (CSA) للسيطرة على الاصطدام الذي يحدث بين الروبوتات أو بين الروبوت مع العقبات المتحركة عن طريق استخدام وضعين من السلوك: وضع السعي ووضع التتبع. وقد اظهرت النتائج نجاح الطريقة المقترحة لإيجاد مسار كامل، والأمثل وخالي من التصادم لجميع الروبوت.

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