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محاكاة تضمين تقسيم التردد المتعامد المتعدد المستخدمين المشفر في الخط النازل == Simulation of Coded Multiuser Ofdm Downlink

Author name: دﻧﻴﺎ ﻓﺆاد فاروق النعيمي
Supervisor name: رعد سامي فياض
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Electronic And Communications Engineering
Language: English
University location: Baghdad
First pages:
Abstract: The orthogonal frequency division multiple access (OFDMA) scheme adopts orthogonal frequency division multiplexing (OFDM) subcarriers, which are particularly suited for transmition over broadband frequency selection channels, to support multiusers. The scheme considered usually assigns a subset of subcarriers to each user and adopted adaptive techniques for the allocation of available resources/subcarriers according to the channel state information (CSI) estimated at the transmitter using a reverse link. This thesis proposed three coded multiuser OFDM schemes based on spreading the data of each user over all subcarriers without CSI at the transmitter. The idea behind these schemes is to split the OFDM transceiver into two stages : one common to all users while the other consists of identical parallel units with each unit is used to process the data related to an individual user. The two stages are separated by a multiplexer/demultiplexer unit whose position can be chosen to yield different schemes. The three schemes considered here are : user multiplexed scheme, inner coded multiplexing scheme, and mapper multiplexing scheme. The proposed schemes implemented are using MATLAB simulink (version 7) to investigate their performance under different operating conditions related to number of users, Rayleigh fading channel, and serial concatenated codes. The results are compared with those related to two conventional schemes, subcarrier mapping scheme and outer coded multiplexing scheme. The simulation results indicate that the proposed user multiplexing scheme may offer performance as high as that offered by the conventional outer coded multiplexing scheme but with reduced number of equipments.

تهيئة حاسوبية لموجه سيسكو == Computer Based Configuration For Cisco Routers

Author name: فارتان رافي كريكوريان
Supervisor name: غسان حميد عبد المجيد
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering - Department Of Electronic And Communications Engineering
Language: English
University location: Baghdad
First pages:
Abstract: Routers are intelligent devices that make connection between different networks possible. In addition, routers can perform several functions, including filtration and selection of the best path of packets movement. Routers must be configured efficiently in order to perform the above functions. In literature, two approaches have been distinguished for the configuration, namely; text mode and graphical mode approach. The present work is analyzing these two approaches and defines precisely their advantages and limitations. As a result of this analysis, a new approach is proposed in this thesis which eliminates the limitations. The work proposes a graphical interface which is executed on a desktop (or laptop) PC. The user defines the configuration parameters through a program which transfers these parameters to the router by console port instead of Ethernet port. These parameters are then saved on Non Volatile Random Access Memory. The proposed graphical interface is implemented by standard lab consisted of two routers. The implementation shows that the time of configuration can be reduced to 70% of the text mode approach, and overcome the trouble of the old graphical interface.

تصنيف وتفسير تخطيط الكهربائية العضلية باستعمال نظام الشبكة العصبية == EMG Classification and Interpretation Using Neural Network System

Author name: قيس احمد حبش
Supervisor name: صفاء سعود مهدي
General topic: Medical Engineering
Specific topic: Biomedical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: Arabic
University location: Baghdad
First pages:

العلم الصرفي لمفصل النامية المقرنية وعلاقته بالخصائص الميكانيكية الحيوية == THE MORPHOLOGY OF THE ZYGAPOPHYSEAL JOINT IN RELATION TO BIOMECHANICAL PROPERTIES

Author name: سمر سرمد محمود مختار
Supervisor name: صادق جعفر عباس | اكرم عبود جعفر
General topic: Medical Engineering
Specific topic: Biomedical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: Arabic
University location: Baghdad
First pages:

اليتي القوى والحركة لمفصل الركبة البشري == Biomechanics of the Knee Joint

Author name: سمر رياض فتحي الرزنامجي
Supervisor name: البير ايليا يوسف نعمان
General topic: Medical Engineering
Specific topic: Biomedical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: Arabic
University location: Baghdad
First pages:

الذكاء الاصطناعي لتحليل صورة المفراس الحلزوني == Artificial Intelligence For Computer Tomography (CT) Image Analysis

Author name: سلمى علي رضا القزاز
Supervisor name: نصر العاني
General topic: Medical Engineering
Specific topic: Biomedical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

الدراسة و النمذجة الميكانيكية الاحيائية لوتر و رابط الجرذ == A Biomechanical Study And Modeling Of The Rat Tendon And Ligament

Author name: نور علي صادق
Supervisor name: فاخر سلمان العاني | صادق جعفر عباس
General topic: Medical Engineering
Specific topic: Biomedical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

استخدام الليزر في تشخيص اضطرابات السمع == Use Of Laser In Diagnosis Of Hearing Disorders

Author name: نعم خالد حميد مجيد
Supervisor name: منقذ سليم داوود
General topic: Medical Engineering
Specific topic: Biomedical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

صناعة المواد البديلة للعظام == Manufacturing Of Bone Substitute Materials

Author name: منى مصطفى كريم
Supervisor name: البير ايليا يوسف
General topic: Medical Engineering
Specific topic: Biomedical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

فصل الصور الطبية بالاعتماد على الشبكات العصبية الصناعية == Separation Of Medical Images Based On Artificial Neural Network

Author name: سنان كنعان عبد الرسول
Supervisor name: انس قصي النعيمي
General topic: Medical Engineering
Specific topic: Biomedical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

الكشف البصري المبكر لسرطان الجلد بدون تدخل جراحي == Non - Invasive Early Optical Detection Of Skin Cancer

Author name: احمد محمد علي هادي الخزعلي
Supervisor name: منقذ سليم داود | فائزة عفتان صغير
General topic: Medical Engineering
Specific topic: Biomedical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

تحسين سلوك الكلال للابوكسي باستخدام مواد سيراميكية == Fatigue Behavior Of Epoxy Reinforced By Ceramic Particles

Author name: علي نصيف جاسم
Supervisor name: عبد الرحمن نجم عبد
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

محاكاة المساند وتاثيرها على خصائص الجريان الاهتزازي في الانابيب الناقلة للموائع == Modeling Of Supports And Their Effects On Flow Induced Vibration Characteristics Of Pipes Conveying Fluids

Author name: ثائر جبار نتيش
Supervisor name: علي حسين الحلي
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

تاثير لحام الاحتكاك الخلطي على الخواص الميكانيكية لسبيكة الالمنيوم 7020-T53 == The Effect Of Friction Stir Welding On The Mechanical Properties Of AA 7020 - T53

Author name: محمد عبد الستار محمد
Supervisor name: محسـن جبر جويج | منير حميد طليفح
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

دراسة عددية لانتقال الحرارة لريشة توربين في القمة والجذر == Numerical Study Of Heat Transfer On Turbine Blade Tip And Shelf

Author name: حسين طلال ذيبان
Supervisor name: احمد فخري خضير
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

اللحام الاحتكاكي بالمزج لسبيكة المنيوم2024-Wباستخدام الجانب العملي والتحقق الرقمي == Friction Stir Welding Of AA 2024 - W Using Experimental And Numerical Methods

Author name: حمزة نور الدين شاكر
Supervisor name: اياد مراد طخاخ
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

الخواص الميكانيكية للمواد المركبة باستخدام مسحوق النحاس والكرافيت == Mechanical Properties Of Composites Using Copper Powder With Graphite

Author name: فهد سلام صبري العقابي
Supervisor name: هشام توفيق رشيد | عبد الرحمن نجم المشهداني
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

الخواص الميكانيكية للمواد المركبة باستخدام المطاط الطبيعي مع راتينج الايبوكسي == Mechanical Properties Of Composites Using Natural Rubber With Epoxy Resin

Author name: نبيل شلال ثامر المرمضي
Supervisor name: محسن جبر جويج | هاني عزيز امين
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

دراسة عملية ونظرية ةتحليلية لايجاد تاثير عامل الانضغاط لصفائح معدنية سميكة معرضة الى انضغاط باتجاه واحد او باتجاهين على مقاومة الاختراق == Impact Velocity On Steel Plates Under In - Plane Compression Forces

Author name: محمد زكريا صالح
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

بحث الجريان المار خلال ممر ريش التوربين المحوري == Investigation Of Flow Through Axial Turbine Blade Passage

Author name: علي صبري عباس صالح
Supervisor name: عاصم يوسف حميد | خليل انجاد الجميلي
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

دراسة هبوط الضغط للجريان ثنائي الطور في انبوب افقي كبير القطر == Two - Phase Flow Pressure Drop Study In A Large Diameter Horizontal Pipeline

Author name: صبا عمار صالح
Supervisor name: Khalil E.J. Al-Jumaily
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

التاثيرات لموقع طبقات مختلفة في ترتيب هجين على مقاومة الصدمة لاهداف مركبة هجينة == The Effects Of The Location Of Different Layers In Hybrid Arrangement On The Impact Resistance Of Hybrid Composite Targets

Author name: رعد جمعة محي
Supervisor name: هشام توفيق رشيد | فواز عباس طه
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

التكثيف الطباقي لغاز التبريد R-134a الممزوج بالزيت على انبوب اهليليجي افقي املس == Laminar Film Condensation Of R - 134a - Oil Mixture On A Plain Horizontal Elliptical Tube

Author name: حسين محمد حسن عاشور
Supervisor name: عدنان عبد الوهاب القلمج
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

دراسة الاصطدام واطئ السرع لصفائح مركبة == A Study Of Low Velocity Impact Of Composite Laminated Plates

Author name: حسن مجيد حامد
Supervisor name: Muhsin J. Jweeg
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:

الخصائص الستاتيكية والديناميكية للصفائح المركبة == Static And Dynamic Characteristics Of Composite Plates

Author name: براء مهدي جاسم السلامي
Supervisor name: محسن جبر جويج
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
First pages:
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