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دراسة عددية وتجريبية لتحسين اداء الخلايا الشمسية باستخدام نظام التبريد المائي == EXPERIMENTAL AND NUMERICAL STUDY TO IMPROVE THE PERFORMANCE OF SOLAR CELL USING WATER COOLING SYSTEM

Author name: سارة يحيى حاتم
Supervisor name: MAHDI HATIF KADHUM
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Najaf
First pages:

التحقيق التجريبي لبعض التطبيقات الحرارية باستخدام مركز عدسة فريسنل في العراق == EXPERIMENTAL INVESTIGATION OF SOME THERMAL APPLICATIONS USING FRESNEL LENS CONCENTRATOR IN IRAQ

Author name: احمد حسين عبيد محمد
Supervisor name: اسعد عواد عباس | عادل عبد عزيز عيدان
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Najaf
First pages:

تحقيق عملي في الاداء وتوفير الطاقة لوحدة تكييف الهواء مع مكثف تبريد تبخيري غير مباشر == Experimental Investigation of the Performance and Energy saving of Air Conditioning Unit with Indirect Evaporative Cooled Condenser

Author name: عبد الباسط ذاري يوسف حسن
Supervisor name: باسل نوري مرزة | قاسم صالح مهدي
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Najaf
First pages:

التصميم الحراري للمقطر الشمسي احادي الميل مع وحدة اعادة التسخين بواسطة تطبيقات عدسة فرينل == Thermal Design Of A Single Slope Solar Still With Preheater Unit By Fresnel Lens Applications

Author name: دعاء جفات حسن العبودي
Supervisor name: علي شاكر باقر
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Najaf
First pages:

دراسة تجريبية لتحسين اداء التبريد لمحولات القدرة الكهربائية == An Experimental Study To Enhance The Cooling Performance Of Power Distribution Transformer

Author name: ايمن عبد الكريم عباس
Supervisor name: زيد معن | حسنين غني
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Najaf
First pages:

دراسة عملية وعددية لزيادة كفائة النظام الحراري الضوئي باستخدام مادة متغيرة الطور == EXPERIMENTAL AND NUMERICAL STUDY TO INCREASE THE EFFICIENCY OF THE PHOTOVOLTIC THERMAL SYSTEM USING PCM

Author name: عمار ميثم فيصل مذبوب
Supervisor name: علي نجاح كاظم
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Najaf
First pages:

Energy Harvesting Analysis Using Relay Protocols for Wireless Information Process

Author name: Nada Taher Malik
Supervisor name: AbdulKadum Jafar Al Yasiri | Ahmad Taha Al Jayashi
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Najaf
First pages:

طلاء مادة نانوي مركب لتحسين كفاءة الخلايا الشمسية في ظروف الطقس الحار == NANO - COMPOSITE MATERIAL COATING TO IMPROVE THE SOLAR CELL EFFICIENCY IN HOT WEATHER CONDITION

Author name: علي ماجد عبود
Supervisor name: قحطان عدنان عبد
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Najaf
First pages:

دراسة تجريبية لمجمع الالواح الشمسية المسطحة باستخدام الاخاديد على شكل V مع تصميم انابيب متعددة الاشكال == EXPERIMENTAL STUDY OF SOLAR FLAT PLATE COLLECTOR WITH V - GROOVES AND MANY SHAPE TUBES DESIGN

Author name: عبد العباس عبدالنبي والي حمادي القره غولي
Supervisor name: احمد هاشم يوسف
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Najaf
First pages:

study into deep drawing parameters for sound products

Author name: ammar abdul - karim mohamad
Supervisor name: shakir k. al - samarrai
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Baghdad
Language: English
University location: Baghdad
First pages:

تاثير العوامل الميتالورجية على الفحص بالموجات فوق الصوتية لحديد الصب == the influence of metallurgical factors on ultrasonic testing of cast irons

Author name: مامون سهيل احمد
Supervisor name: subhi ismail ibrahim
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Mosul
First pages:

تاثير الطلاء اللاكهربائي بالنيكل على كفاءة الانابيب الناقلة للغازات والسوائل == effect of electroless nickel plating for plated pipes transporting gases and liquides

Author name: سندس محمد نوري
Supervisor name: علي حسين عتيوي
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:

دراسة حول عمل وكفاءة مسخنات الماء النفطية المنزلية

Author name: منهل منصور عودة
Supervisor name: عدنان توما زيونة
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Higher Diploma
Language: Arabic
University location: Baghdad
First pages:

نمذجة تصاميم قوالب السباكة بالضغط == simulation of pressure dicasting dies design

Author name: عادل ظاهر جبر الحجامي
Supervisor name: shakir k. al - samarrai
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Baghdad
Language: English
University location: Baghdad
First pages:

تاثير ابعاد وموقع الحز على الانحراف ، الانبعاج والاهتزاز الحر لعتبة متدرجة وظيفيا == The Effect of Notch Dimensions and Position on Deflection, Buckling and Free Vibration of Functionally Graded Beam

Author name: رغد عزيز نعمة
Supervisor name: Luay S. Alansari
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
Language: English
University location: Basrah
First pages:

دراسة حصاد الطاقة من منظومة التعليق للمركبات == Study of Energy Harvesting from the Suspension of a Vehicle

Author name: مرتضى قاسم دينار
Supervisor name: Haider J. Abid | Hassanein I. Khalaf
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Basrah
First pages:

تشغيل محرك الاحتراق الداخلي بواسطة الهيدروجين المنتج مع الوقود الاحفوري == Operating an Internal Combustion Engine by Produced Hydrogen Combined with Fossil Fuel

Author name: سرمد علاء جاسم
Supervisor name: رافد معلك حنون
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Dhi Qar
First pages:

دراسة عددية وتجريبية لتاثير امتداد اخدود طولي على خصائص جسم هوائي == NUMERICAL AND EXPERIMENTAL STUDY OF THE EFFECT OF LONGITUDINAL SPANWISE GROOVE ON AIRFOIL CHARACTERISTICS

Author name: مهدي صاحب مهدي
Supervisor name: Qais A. Rishack | Mohammed A. Al - fahham
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Basrah
First pages:

دراسة عملية وعددية لقدم اصطناعية رياضية مصنعة من مواد مركبة هجينة == Experimental and Numerical Study of Athletic Prosthetic Foot Laminated from Hybrid Composite Materials

Author name: حيدر كريم طلاع
Supervisor name: Abdul Kareem F. Hassan | Jawad Kadhim Oleiwi
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
Language: English
University location: Basrah
First pages:

الكشف المبكر والعابر لظروف العمل لاهتزاز المحامل ذات العناصر الدوارة باستخدام تقنيات الذكاء الاصطناعي == Early and Cross-Domain Detection of Rolling-Element Bearings Vibration Using Artificial Intelligent Techniques

Author name: حيدر سهيل نجم
Supervisor name: Jaafar K. Ali
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
Language: English
University location: Basrah
First pages:

تصميم وبناء واختبار نفق هوائي منخفض السرعة == DESIGN, CONSTRUCTION AND TEST OF A LOW SPEED WIND TUNNEL

Author name: رضا محمد علي عباس
Supervisor name: Ahmad Abdulkarim Mahdi Alsahlani
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Basrah
First pages:

الموازنة متعددة المتسويات للمكائن الدوارة بواسطة قياس الاستجابة الاهتزازية == Multi-Plane Balancing of Rotating Machines Using Vibration Response Measurement

Author name: يحيى محمد امين
Supervisor name: Jaafar K. Ali
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
Language: English
Key words:
  • Chapter One: Introduction
  • Introduction
  • Advantages of Balancing
  • Rotor Vibration Forms
  • Causes of Unbalance
  • Types of Unbalance
  • Rotor Balancing Methods
  • Mathematical Model
  • Model Based Balancing (MBB)
  • Experimental Modal Analysis (EMA)
  • Digital Signal Processing (DSP)
  • Time and Frequency Domain
  • Fast Fourier Transform (FFT)
  • Thesis objectives
  • Thesis structure
  • Chapter Two: Literature Review
  • Introduction
  • Influence Coefficient Method
  • Modal Balancing Methods
  • Balancing Without Trial Runs
  • Conclusions
  • Chapter Three: Finite Element Model
  • Introduction
  • Coordinate System
  • Rotor Components
  • Disk elements
  • Shaft elements
  • Euler-Bernoulli Beam Theory
  • Shear and rotary inertia effects
  • The 8-DOF Shaft Elements model
  • Gyroscopic effects
  • Couplings
  • Bearings
  • Rolling-Element Bearings Hydrodynamic Bearings
  • Flexible Support
  • Modeling a Whole Rotor
  • Chapter Four: Modal Analysis
  • Introduction
  • Updating of FE model
  • Modal Testing Method
  • Mathematical Models
  • Theoretical Basis of Modal Analysis
  • Single Degree of Freedom System SDOF
  • Graphical Representation of FRF
  • Multi-Degree-of-Freedom System (MDOF)
  • Revisiting SDOF
  • Frequency Response Function Measurement
  • FRF Estimation
  • SISO-FRF Estimation
  • Coherence function
  • Excitation Techniques
  • Extracting Modal Parameters
  • One Column or One Row
  • Extracting Modal Parameters from FRF Data-SDOF
  • methods
  • Peak-picking
  • Circle-fit
  • Least Squares Curve Fitting Using SDOF Model
  • Extracting Modal Data from FRF Data-MDOF method
  • Mode Shape Extraction from Modal Constants
  • Modal Testing of Rotating Structures
  • Chapter Five: Digital Signal Processing
  • Introduction
  • Time and Frequency Domains
  • Signal Digitization
  • Sampling
  • Quantization
  • Aliasing
  • Leakage
  • Windowing
  • Averaging
  • Chapter summery
  • Chapter Six: Sensors calibration and EMA verification
  • Introduction
  • Calibration of transducers
  • Calibration of Accelerometer
  • Calibration of Force Transducer Case study-I: Circular cross-sectional shaft
  • Analytical Modal Analysis
  • Numerical Modal Analysis
  • Experimental Modal Analysis
  • Available Excitation Techniques
  • Results and Comparison
  • Effects of DSP parameters on FRF
  • Effect of Windows
  • Effect of sample time
  • Effect of Excitation Techniques
  • Reciprocity condition
  • Case study-II: Shaft with two disks
  • Chapter summary
  • Chapter Seven: Model-Based Rotor Balancing
  • Introduction
  • Model Based Balancing (MBB)
  • Balancing Test Rig
  • The rotor to be balanced
  • Performing EMA on the rotor
  • FEA Based Model
  • Comparison of the Resulting Modal Parameters
  • Balancing Case Studies
  • Case-I: Two measuring planes and two balancing planes
  • Case-II: Two measuring planes and three balancing planes Residue-Based Model Balancing
  • Essential arrangements before EMA
  • Some issues when performing EMA
  • EMA results
  • Balancing Results
  • Discussion of results
  • Discussion of Results of Tables (7-4) and (7-5)
  • Discussion of Results of Tables (7-6)
  • Chapter summery
First pages:

تصنيع وتحليل قدم اصطناعية رياضية ديناميكية باستخدام مادة مركبة مقترحة == Manufacturing and Analysis of an Athletic Dynamic Prosthetic Foot Using a Proposed Composite Material

Author name: نور كريم جماع كاطع
Supervisor name: محسن جبر جويج | احمد قاسم حسن
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Karbala
First pages:

دراسة اداء انظمة التبريد ذي القنوات المايكروية باستخدام قنوات متغيرة المقطع العرضي وترتيبات مختلفة للقنوات ولاتجاه جريان المائع == Performance study of Microchannel cooling system using variable cross section channels with different arrangements and fluid flow directions

Author name: صاحب شهاب احمد اسحاق الدليمي
Supervisor name: Abdul Muhsin Abood Rageb
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
Language: English
University location: Basrah
First pages:

دراسة مشكلة التاكل في انابيب البخار لافران المراجل في محطة كهرباء النجيبية == study of the problem of corrosion in the steam tubes of boiler furnaces in al-najebia power plant

Author name: حيدر معاذ محمد
Supervisor name: صالح اسماعيل نجم
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
Language: English
University location: Basrah
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