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دراسة نظرية وتحليلية لتاثير انواع الارضيات على اداء المدخنة الشمسية == Theoretical and Experimental Study of the Ground Types Effect on the Performance of Solar Chimney

Author name: محمد رضا خضير عباس
Supervisor name: محمد حسن عبود
General topic: Mechanical Engineering
Specific topic: Thermal Power
Degree: Master
University: University of Kerbala - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Karbala
First pages:

تاثير الاهتزاز على توزيع الضغط داخل المحمل الزيتي == The Effects of Dynamic Loading on the Pressure Distribution of Journal Bearing

Author name: هدى مسير عبد الكاظم
Supervisor name: عبد الكريم عبد الرزاق الحمداني
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Master
University: University of Kerbala - College Of Engineering - Department Of Mechanical Engineering
Language: English
Full text from the source: https://uokerbala.edu.iq/wp-content/uploads/2022/04/Rp_The-Effect-of-Vibration-on-The-Pressure-Distribution-of-Journal-Bearing.pdf
University location: Karbala
First pages:

دراسة الجريان ثنائي الطور خلال فترة قناة مستطيلة مع مثيرات اضطراب مركبة

Author name: هند ناجي كريم الجبوري
Supervisor name: محمد وهاب كاظم الجبوري | رياض صباح الطريحي
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Kerbala - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Karbala
First pages:

دراسة تجريبية وعددية لجريان ثنائي الطور في قناة توسعية/تقلصيه مستطيله مضلعة

Author name: علي عبد الائمة حسن
Supervisor name: عباس ساهي شريف | رياض صباح الطريحي
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Kerbala - College Of Engineering - Department Of Mechanical Engineering
Language: English
Full text from the source: https://uokerbala.edu.iq/wp-content/uploads/2020/07/Rp-EXPERIMENTAL-AND-NUMERICAL-STUDY-OF-TWO-PHASE-FLOW-IN-THE-RIBBED-DIVERGENT-CONVERGENT-RECTANGULAR-DUCT.pdf
University location: Karbala
First pages:

دراسة نظرية وعملية لفتحة الوقب للطرف الصناعي من نوع سايم == Theoretical and Experimental Analysis of Cut - Out Shapes for Syme’s prostheses

Author name: حوراء احمد حمزه
Supervisor name: محسن جبر جويج | عبد الكريم الحمداني
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Kerbala - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Karbala
First pages:

تاثير اضافة الايتريوم والتنتالوم على سلوك البلى لسبائك النيكل تيتانيوم المتذكرة للشكل == Effect of Yttrium and Tantalum on Wear Behavior of NiTi Shape Memory Alloys

Author name: حنان جبار عبد الرضا
Supervisor name: عبد الكريم عبد الرزاق | عبد الرحيم كاظم عبد علي
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Kerbala - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Karbala
First pages:

دراسة مقاومة الكلال و حساب نسبة الصلابة الى الوزن لطرف صناعي عبر الركبة == Investigation of fatigue strength and stiffness / weight ratio of knee disarticulation prosthetic socket

Author name: امير علاء عليوي
Supervisor name: محسن عبد الله الشمري | عماد قاسم حسين
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Master
University: University of Kerbala - College Of Engineering - Department Of Mechanical Engineering
Language: English
Full text from the source: https://uokerbala.edu.iq/wp-content/uploads/2020/07/Rp-Investigation-of-fatigue-strength-and-stiffness-weight-ratio-of-knee-disarticulation-prosthetic-socket.pdf
University location: Karbala
First pages:

دراسة مجمع شمسي مستوي باستخدام دقائق نانوية مع موائع اساسية مختلفة == Study of Flat Plate Solar Collector Using Nanofluids with Different Basefluids

Author name: علي عبد الرزاق عبد دبس
Supervisor name: عباس ساهي شريف
General topic: Mechanical Engineering
Specific topic: Fluid Dynamics
Degree: Master
University: University of Kerbala - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Karbala
First pages:

دراسة ربط سبيكة الالومينيوم 6061 بالنايلون 66 واضافاته بواسطة الكبس الحراري == Studying The Joining of AA6061 To Nylon 66 Base Composite Using Hot Pressing Process

Author name: حسين ماهر سعد حيدر
Supervisor name: منير حميد طليفح | عدنان نعمه عبود
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Master
University: University of Kerbala - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Karbala
First pages:

تحضير ونمذجة توزيع درجة الحرارة لمادتي السيليكون والفضة النانوية المنتجة بليزر النديميوم - ياك == Synthesis and modeling of temperature distribution for Si and Ag nanoparticels produced using Nd : YAG laser

Author name: معتز سلمان حسن العبودي
Supervisor name: Bassam Ghalib Rasheed | Ziad Aeyad Taha
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Baghdad
Language: English
University location: Baghdad
First pages:

دراسة امكانية استخدام المبادل الحراري الارضي في تبريد وتدفئة المباني السكنية في العراق == STUDY THE POTENTIAL OF USING EARTH TO AIR HEAT EXCHANGER FOR COOLING AND HEATING OF THE RESIDENTIAL BUILDINGS IN IRAQ

Author name: سجاد وليد نوري البعاج
Supervisor name: مشتاق اسماعيل حسن
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Thi-Qar - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Dhi Qar
First pages:

تحليل استجابة هيكل الطائرة الوسيرة UAV المصنعة للاهتزاتات العشوائية والضوضاء باستخدام نفق الرياح == ANALYSIS RESPONSE OF THE MANUFACTURED UNMANNED AERIAL VEHICLE (UAV) STRUCTURE FOR RANDOM VIBRATIONS AND NOISE BY USING WIND TUNNEL

Author name: ايمن باسم عبطان القره غولي
Supervisor name: كاظم كريم محسن | محمد دخيل سلمان
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Thi-Qar - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Dhi Qar
First pages:

دراسة تدفق السوائل غير النيوتوية من خلال معوقات مختلفة الاشكال مع المجال المغناطيسي

Author name: رنا كريم شمخي
Supervisor name: غسان عدنان عبد | حسام علي خلف
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Thi-Qar - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Dhi Qar
First pages:

تحسين انتقال الحرارة في انبوب دائري باستخدام المضطربات المخروطية مع انواع مختلفة من الاشرطة == Heat Transfer Enhancement in a Tube Using Conical Nozzle Turbulators with Different Types of Tapes

Author name: بيداء عدنان حسين
Supervisor name: خضير سالم مشتت
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Thi-Qar - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Dhi Qar
First pages:

النمذجة الثلاثية الابعاد للجريان الاضطرابي وانتقال الحرارة خلال انبوب منحني على شكل حرف U == 3D numerical simulation of turbulent flow and heat transfer in a tube of U - configuration

Author name: اياد علي محمد
Supervisor name: خضير سالم مشتت
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Thi-Qar - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Dhi Qar
First pages:

الالتفاف المعاكس للاثارة اللادورية للمنظومات الدافعة التدويرية == Deconvolution Aperiodic Excitation of Cycloidal Propulsion Drive

Author name: ريم عبد الامير برغش شرشاب
Supervisor name: كاظم كريم محسن
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Thi-Qar - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Dhi Qar
First pages:

دراسة عملية ونظرية لحوض الحراره المايكروي مع مواد متغيرة الطور == Experimental and Numerical Study of Micro Heat Sink with Phase Change Materials

Author name: هند لفته تبينه
Supervisor name: مشتاق اسماعيل حسن
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Thi-Qar - College Of Engineering - Department Of Mechanical Engineering
Language: English
University location: Dhi Qar
First pages:

دراسة انتقال الحرارة بالغليان للجريان في انابيب عمودية محشوة برغوة معدنية == AN INVESTIGATION OF FLOW BOILING HEAT TARNSFER IN METAL FOAM FILLED VERTICAL TUBES

Author name: علي حسن لفتة
Supervisor name: احسان يحيى حسين
General topic: Mechanical Engineering
Specific topic: Fluid Dynamics
Degree: Doctorate
University: University of Baghdad
Language: English
University location: Baghdad
First pages:

دراسة تجريبية ونمذجة تاثير معاملات التشغيل بالتفريغ الكهربائي على الاجهادات السطحية المتبقية وعمر الكلال لصلب القوالب == EXPERIMENTAL AND MODELING STUDY ON THE INFLUENCE OF ELECTRICAL DISCHARGE MACHINING PARAMETERS ON THE SURFACE RESIDUAL STRESSES AND FATIGUE LIFE OF DIE STEEL

Author name: سعد محمود علي
Supervisor name: احمد نايف الخزرجي | سمير علي امين
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University of Technology - Department Of Mechanical Engineering
Language: English
University location: Baghdad
First pages:

كلال الدورات المنخفضة في سبيكة المنيوم قابلة للتصليد بالترسيب == Low Cycle Fatigue of Precipitation Hardened Aluminum Alloy

Author name: سيف خالد محمود
Supervisor name: ظافر صادق الفتال
General topic: Mechanical Engineering
Specific topic: Applied Mechanics
Degree: Master
University: University of Technology - Department Of Mechanical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: لسبائك الالمنيوم عالية المقاومة طيف واسع من التطبيقات من صناعة السيا ا رت الى الصناعات الفضائية.ان السبب الرئيسي وراء النمو السريع للطلب على هذة السبائك هو مزيج من الخواص الفريدة التي جعلت منها واحدة من اكثر الت ا ركيب والمواد الهندسية استعمالا، ولذلك ل | High strength AL - alloys have a wide spectrum of applications from automobile to aerospace industries. The demand for these aluminum alloys grows rapidly because of the unique combination of properties which make them the most versatile of engineering and construction materials. Hence, development of high strength Al - alloys continues to be an important area of research.In this work, the influence of different heat treatments on the mechanical properties and fatigue life under low cycles of wrought 7075 aluminum alloy was experimentally investigated. The heat treatments included peak ageing (T6), over ageing (T73) and annealing (O).The effect of heat treatments on the alloy was explained in terms of their influence on the mechanical properties. The results showed that T73 temper has an ultimate strength of 504.7 MPa and elongation of 12.5%. Peak ageing treatment enhanced the strength by 10.9% and reduced the elongation by 7.2%, while in the annealed condition, the strength was reduced and the elongation was improved by 51.33% and 31.2%, respectively. T6 had the highest hardness followed by T73 and O tempers.The flat fatigue specimens were subjected to constant reverse bending load. The tests were performed at the laboratory environment with a frequency of 23.3 Hz and at a stress ratio (R) of - 1. For each temper, strain - life graphs were obtained for specimens with notches in the form of central cylindrical holes made by drilling. The fatigue resistance of specimens with notches was compared to the results for notch - free specimens. It was observed that the presence of a stress raiser, such as a drilled hole, lowers the fatigue life for all tempers. However, the notch sensitivity of the fatigue life was different for each temper.The fatigue crack growth rate of T73 and annealed temper was investigated, the results showed that T73 treated sample exhibits higher crack growth resistance. Paris` equation was derived for each temper Keywords : LCF. precipitation hardening. 7075 aluminum alloy. fatigue crack growth.

التقنية المثلى الحرارية لاعادة تشكيل القرنية اثناء الجراحة الليزرية == Thermal Optimization Technique For Corneal Reshaping During Laser Surgery

Author name: نبراس حسين عائب
Supervisor name: خالد احمد الجودي | سومر متي ناسي
General topic: Mechanical Engineering
Specific topic: Fluid Dynamics
Degree: Doctorate
University: University of Baghdad
Language: English
University location: Baghdad
First pages:
Abstract: جرى التحقق من التغيير في شكل القرنية حراريا بمساعدة منظومة ليزر لتعويض الاخطاء الانكسارية. شملت الدراسة صياغة نموذج رياضي للمسالة ببعد واحد مع تجارب عملية باستخدام المزدوجات الحرارية والكاميرا الحرارية. كانت درجة الحرارة القصوى المحسوبة من النموذج الرياض | A change in corneal shape assisted by laser system to compensate the refractive errors is investigated thermally. The investigation included a mathematical one dimensional model and experimental work using thermocouples and infrared camera. The maximum th

تحسين اداء التبريد الغشائي لثقوب النفث باستخدام المنحدرات == Enhancement of Film Cooling Performance By Using Ramped - Holes Injection

Author name: فلاح فاخر حاتم الجابري
Supervisor name: عاصم حميد يوسف الدراجي | قتيبة جميل مهدي الخشالي
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Doctorate
University: University of Technology - Department Of Mechanical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: The effect of introducing ramps with cylindrical and conical holes on the film cooling performance has been investigated numerically and experimentally in the present study. A computational fluid dynamic code (FLUENT) has been used to predict the flow beh

تحليل الانبعاج الاهتزاز لصفائح مركبة طبقية == Buckling And Vibration Analysis of Laminated Composite Plates

Author name: فراس حميزة تايه
Supervisor name: Widad I. Majeed
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Baghdad
Language: English
University location: Baghdad
First pages:
Abstract: تمت دراسة الاهتزاز الحر والانبعاج للصفائح الرقيقة المركبة المكونة من طبقات المعرضة لاحمال منتظمة, منحنية, وخطية ضمن مستوي الصفيحة باستخدام نظرية الصفائح الطبقية الكلاسيكية (CLPT). ان موضوع هذا العمل هو دراسة صفائح مركبة تحت تاثير احمال انبعاج وايجاد الترد | Free vibration and buckling behavior of laminated composite thin plates subjected to in - plane uniform, parabolic, and linear distributed loads is studied using classical laminated plate theory (CLPT). The object of this work is to carry out a theoretica

تقييم الاداء لمبادل حراري مباشر ثلاثي الاطوار == Performance Evaluation of Three Phase Spray Direct Contact Heat Exchanger

Author name: فاطمة احمد عبد الخالق
Supervisor name: Najim A. Jassim
General topic: Mechanical Engineering
Specific topic: Mechanical Engineering
Degree: Master
University: University of Baghdad
Language: English
University location: Baghdad
First pages:
Abstract: يتناول البحث الحالي دراسة عملية لمبادل حراري مباشر ثلاثي الطور، لنظام (ماء - R11). حيث ان الماء هو الطور المستمر (السائل) وR11 (الغاز - السائل) هو الطور المتشتت. يتكون مقطع الاختبار من عمود اسطواني من الزجاج نوع (Perspex) بقطر داخلي 8 سم وطول 1?2 متر.، ال | The present investigation dealt with experimental study of three - phase direct - contact heat exchanger, for water - R11 system. Whereas water was the continuous phase (liquid) and R11 (liquid - gas) was the dispersed phase. The test section consisted of

تقليل الاعاقة للجريان المضطرب الاحادي والثنائي الطور في الانابيب باستخدام بوليمر نوع CMC == Drag Reduction In Single And Two - Phase Turbulent Pipe Flow Using CMC Polymer

Author name: عصام مجبل عبد
Supervisor name: Sabah T. Ahmed
General topic: Mechanical Engineering
Specific topic: Thermal Power
Degree: Doctorate
University: University of Technology - Department Of Mechanical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: ان تقليل الاعاقة ظاهرة فيزيائية تتضح بشكل واضح خلال الجريان المضطرب عند اضافة بوليمر للجريان ذات سلسلة طويلة. ان خاصية السلسلة الطويلة للبوليمر لها فائدة في تكسير الطبقة المتاخمة المتكونة عند سطح الانبوب خلال عملية الجريان. يمكن ان يقسم الجريان الى نوعين | Drag reduction is a physical phenomenon appears through turbulent flow due to polymer additive. The long chain of polymer destroyed the sublayer which normally growing through single and two - phase flows. The flow is divided into Newtonian flow (zero con
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