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تصنيع ودراسة خصائص الكاشف معدن شبه موصل معدن القائم على اغشية AlInGaN واوكسيد الزنك == Fabrication and Characterization of Metal - Semiconductor - Metal(MSM) photodetector Based on AlInGaN and ZnO Thin Films

Author name: مروة محمد خالد
Supervisor name: علاء جبار غزاي
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

حساب معاملات الزيغ اللوني والهندسي للعدسات الالكترونية باستخدام طريقة الجبر التفاضلي == Electron Lenses Chromatic and Geometrical Aberration Coefficients Calculations by Using Differential Algebraic Method

Author name: ايمن عامر علوان
Supervisor name: احمد كمال احمد
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

GREEN SYNTHESIS AND CHARACTERIZATION OF NANOPARTICLES BY ORGANIC PLANT EXTRACTS AND THEIR BIOMEDICAL IMPORTANCE

Author name: SINAN MOHAMMED HASAN
Supervisor name: Kalivani .V | Sachchida Nand Rai
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

تحضير مادة الانورثايت من مواد محلية عراقية == Preparation of Anorthite from Local Raw Iraqi Materials

Author name: معمر عبد العزيز كامل
Supervisor name: فاضل عبد رسن
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

قياس مستويات النشاط الاشعاعي في المياه والرواسب بالقرب من محطتي ( الزعفرانية والدورة ) لتوليد الطاقة الكهربائية في مدينة بغداد == Measurements of Radioactivity Levels in Water and Sediments near two Power Plants(AL-Zafranya and AL-Dora) in Baghdad City

Author name: ضحى رعد مظلوم الخفاجي
Supervisor name: ندى فاضل توفيق
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

الخصائص الفيزيائية لمادة المتراكب PMMA/ZnO == Physical Properties of PMMA/ZnO Composite Material

Author name: زمن صاحب عبيد
Supervisor name: ثامر عبد الجبار جمعة
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

تقنية التحليل الطيفي للانهيار المحفز بالليزر لفحص تركيب الاسمنت == Laser Induced Breakdown Spectroscopy Technique for Identification Cement Structure

Author name: تغريد خالد حمد
Supervisor name: علاء جبار غزاي | علاء حسين علي
General topic: Physics
Specific topic: Physics
Degree: Doctorate
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

دراسة تحسين جودة الاشارة لمضمن الصوتي البصري == Study the Signal Quality Enhancement for Acousto - Optic Modulator

Author name: محمد فؤاد مجيد الحداد
Supervisor name: احمد كمال احمد
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

دراسة التكسر وتحليل السطح البيني الملحوم بين الزجاج والمعدن == Investigation of Fracture and Surface Analysis of Joined Interface Glass-Metal

Author name: محمد عماد هاشم
Supervisor name: ثامر عبد الجبار جمعة
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

تصميم متحسس الياف ضوئية بلورية == DESIGN OF PHOTONIC CRYSTAL FIBER SENSOR

Author name: سرور علي مهدي الخفاجي
Supervisor name: سهى موسى خورشيد الاوسي
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

حسابات هارتري - فوك النسبية لمجموعة 15 الذرية وبعض الجزيئات ثنائية الذرة == Relativistic Hartree-Fock Computations of Group15 Atoms and Some Diatomic Molecules

Author name: بلال خالد جاسم المشهداني
Supervisor name: سعد ناجي عبود | اياد عبد العزيز العاني
General topic: Physics
Specific topic: Physics
Degree: Doctorate
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

تزامن الشواش في ليزر اشباه الموصلات بطريقة التغذية العكسية لمراة الحلقة البصرية == SYNCHRONIZATION OF CHAOS IN SEMICONDUCTOR LASER BY MEANS OF OPTICAL LOOP MIRROR FEEDBACK

Author name: بان مظفر البياتي
Supervisor name: احمد كمال احمد | قيس عبد الستار النعيمي
General topic: Physics
Specific topic: Physics
Degree: Doctorate
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

نموذج نظري للتصوير من خلال العيوب البصرية والوسط غير المتجانس بصريا == THEORETICAL MODEL FOR IMAGING THROUGH AN OPTICAL DEFECTS AND INHOMOGENEOUS OPTICAL MEDIUM

Author name: حسن حمادي حسن
Supervisor name: اياد عبد العزيز عباس
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

التعرف على قزحية العين باستخدام التحليل المستقل والمكون الرئيسي == IRIS RECOGNITION USING INDEPENDENT AND PRINCIPAL COMPONENT ANALYSIS

Author name: ياسر عدنان جاسم
Supervisor name: ليث عبد العزيز العاني | اياد عبد العزيز العاني
General topic: Physics
Specific topic: Physics
Degree: Doctorate
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

متحسسات الالياف الضوئية البلورية : نمذجة وتطبيقات == Photonic Crystal fiber Sensors : Modelong and Applications

Author name: حسين ثامر سلوم الدفاعي
Supervisor name: احمد كمال احمد | عبد الهادي مطشر الجنابي
General topic: Physics
Specific topic: Physics
Degree: Doctorate
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

تصميم حاسوبي لحارف كهروسكوني باستخدام كثافة الشحنه == Computer Aided Design of Electrostatic Deflector Using Charge Density Method

Author name: مهدي احمد محمد
Supervisor name: احمد كمال احمد
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

تحضير ودراسة خواص اسلاك فائقة التوصيل باستخدام المركب (Bi2Sr2Ca2Cu3O10+?) == Preparation and Characterization of superconductor Wire (Bi2Sr2Ca2Cu3O10+?)

Author name: عمر عدنان الربيعـي
Supervisor name: Emad K. Al-Shakarchi
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

دراسة استعمال المواد المحليه في تقصير الزيوت النباتيه

Author name: رشا شكيب حميد عبود صالح مكيه
Supervisor name: ازهار جواد داوود
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

تصميم حاسوبي لمراة مغناطسية == Computer-Aided Design of a Magnetic Mirror

Author name: حسين علي وهيب الحسيني
Supervisor name: احمد كمال احمد
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

تصميم مراة ايونية تعمل كمصحح للزيوغ باستخدام طريقة القيم الحدودية == DESIGN OF ION MIRROR AS AN ABERRATION CORRECTOR USING BOUNDARY VALUES METHOD

Author name: محمد سلام مزاحم العبيدي
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:

تصحيح الزيغ بسبب عدم التراصف في العدسات الكهروسكونية == THE ABERRATION CORRECTION DUE TO MISALIGNMENT IN ELECTROSTATIC LENSES

Author name: رؤى تحسين عبد الله الصميدعي
Supervisor name: احمد كمال احمد
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:
Abstract: اجري بحث حاسوبي في مجال بصريات الجسيمات المشحونة. يهتم البحث بتصميم منظومات عدسات كهروسكونية بوجود وعدم وجود تاثير عدم التراصف تعمل تحت ظروف تكبير مختلفة.ان توزيع مجال الجهد لعدسه احادية الجهد وعدسة مغمورة كهروسكونية تم تمثيله بدوال تحليلية. تم حل معادلة الاشعة المحورية للمجالات المقترحة لايجاد مسار الجسيمات المشحونة المارة في كل عدسة. ومن توزيع الجهد المحوري ومشتقتيه الاولى والثانية .تم حساب الخواص البصرية كالبعد البؤري والزيغين الكروي واللوني. كذلك تم ايجاد شكل اقطاب كل عدسة كهروسكونية ببعدين وبثلاثة ابعاد. ويعتمد الزيوغ في العدسات الكهروسكونية اعتمادا كبيرا على تراصف الاقطاب، وقد وجد انه عامل مهم يؤثر على الشكل الهندسي لمنظومة العدسة الكهروسكونية. ان نتائج هذه الدراسة لا تبرهن نظريا" امكانية تصميم منظومات عدسة كهروسكونية بزيوغ واطئة فحسب بل تبين امكانية تصنيع مثل هذه العدسات عمليا". | A computational investigation has been carried out in the field of charged - particle optics. The work is concerned with the design of electrostatic lenses with and without misalignment effect operated under different magnification conditions. The potential field distributions of einzel and immersion electrostatic lenses have been represented by analytic functions. The paraxial ray equation has been solved for the proposed fields to determine the trajectory of the charged particles traversing each lens. From the axial potential distribution and its first and second derivatives, the optical properties such as the focal length and spherical and chromatic aberrations have been compute. The electrode shape of each electrostatic lens has been determined in the two - and three - dimensions. The aberration of the electrostatic lens is highly dependent on the alignment of the electrodes and it has been found to be an important parameter affecting the geometry of the electrostatic lens system. The results of this investigation not only prove in theory the possibility of designing electrostatic lens systems with low aberration but also show the possibility of constructing such lenses in practice

دراسة النشاط الاشعاعي لنماذج من التربة والماء في بغداد وكربلاء والبصرة == Determination of the Radioactivity in Soil and Water in Baghdad, Karbala and Basrah Samples

Author name: مصطفى عرب بداي علي البيضاني
General topic: Physics
Specific topic: Solid State and Materials Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:
Abstract: يتضمن البحث دراسة عملية لتحديد تراكيز اليورانيوم وغاز الرادون في التربة والماء لمناطق من بغداد وكربلاء والبصرة وللتعرف على مدى تلوث تلك المناطق بالمواد المشعة بعد احداث الحرب على العراق عام 2003 .تضمن الجزء الاول ايجاد تراكيز اليورانيوم في التربة والماء باستخدام كاشف الاثر (CR - 39) حيث استخدم التفاعل U - 235(n,f)U - 236 كمصدر لشظايا الانشطار النووي وذلك بقصف نواة اليورانيوم U - 235 بالنيوترونات الحرارية من المصدر النيوتروني (Am - Be) بفيض نيوتروني حراري (5 ×103 n cm - 2 s - 1) .تم تحديد التراكيز بالحسابات المعتمدة على المقارنة مع النماذج القياسية، وقد اوضحت النتائج التي حصلنا عليها ان اعلى تركيز لليورانيوم في التربة (2.73 ppm) في منطقة التاجي واعلى تركيز لليورانيوم في الماء (2.12 ppm) في منطقة العشار. تضمن الجزء الثاني ايجاد تراكيز غاز الرادون في التربة والماء باستخدام تقنية عد اثار جسيمات الفا المنبعثة من غاز الرادون فيكاشف الاثر (CR - 39) .وقد اوضحت النتائج التي حصلنا عليها ان اعلى تركيزلغاز الرادون في التربة (666 Bq/m3) في منطقة التاجي واعلى تركيز للرادون في الماء (14 Bq/m3) في منطقة العشار. اوضحت النتائج التي حصلنا عليها بان اعلى تراكيز لليورانيوم والرادون كان في منطقة التاجي ببغداد وفي منطقة العشار بالبصرة بسبب كون تلك المناطق مسرح للعمليات الحربية ضد العراق عام 2003 . | The aim of this project is to measure the uranium and radon gas concentrations in soil and water samples taken from regions situated in Baghdad, Karbala and Basrah, and to limit the level of contamination with radionuclides for these regions during the 2003 war.The first part contains the determination of uranium concentration in soil and water samples using CR - 39 Track detector. The nuclear reaction used a source of nuclear fission fragments is 235 - U (n , f) obtained by the bombardment of U - 235 with thermal neutrons from (Am - Be) source which has flux of (5 ×103 n cm - 2 s - 1). The concentrations values were calculated by a comparison with standard samples which prepared in our laboratory.The results obtained show that the higher concentration of uranium in soil samples was (2.73 ppm) in Al - Tajii region, and the higher concentration for water samples was (2.12 ppm) in Al - Ashaar region.The second part contains the determination of radon concentration in soil and water samples using alpha - emitters registration which emits from radon gas in (CR - 39) track detector.The results show that the higher concentration for radon gas in soil samples was (666 Bq/m3) in Al - Tajii region and in water samples was (14 Bq/m3) in Al - Ashaar region.The results show the maximum values of uranium and radon concentrations were in the (Al - Tajii and Al - Ashaar) regions, because these regions were a field of military operations during the 2003 war

نظام اخفاء البيانات ذو معدل اخفاء عالي باستخدام تحويل الافين وطريقة البت الاقل اهمية == High Hiding Rate Image Steganography System Based On Affine Transform and LSB Method

Author name: محمد خليل خلاف سهيل القيسي
Supervisor name: لؤي ادور جورج | اياد عبد العزيز العاني
General topic: Physics
Specific topic: Solid State and Materials Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:
Abstract: The spying and intrusion operation had been widely spread to steal the information especially with the development of computer networks (like, Internet). To prevent this danger the development of a new technology called “digital information hiding” was developed in such a way that the intruder cannot notice the existence of secret information in the media.In this project an image steganograph system is introduced. The proposed system is based on using the affine transform to represent the blocks of the secret image in terms of the blocks of the cover image. Then, the least significant bits (LSB) insertion method is utilized to hide the quantized affine transform coefficients of the secret image in the cover image. Also in this research some block indexing methods are utilized to improve (i.e, speed up) the involved trials of affine mappings. Three systems (they are traditional IFS, IFS with symmetry predictions, and IFS with symmetry prediction and blocks indexing) have been established. They used to manage the way of selecting the suitable domain (cover) to represent the range (secret) block. The domain search operation will not need to make all isometric - block tests on each domain block. The best domain isometric state is assessed using the introduced isometric predictor; which is based on the moment status of the matched block. This will significantly reduce the matching time because only one match, instead of eight, will be tested to evaluate the IFS - similarity between any range and domain block. Also, a block indexing method is introduced to filter the domain blocks, and filter - in only those domain blocks that have similar block index with that of the mapped range block to be tested using IFS - matching.Some of the well known fidelity measures (like, MSE and PSNR) have been used to asses the quality of the reconstructed image. The conducted test results indicated that the proposed improvements have reduced the required hiding time down to 6.81 second (around 80 times in comparison with the traditional scheme) without making significant degradation in image quality

تاثير نسب ومعاملات الحزم على دقة تصنيف صور الاقمار الصناعية المتعددة الاطياف == Effect of Band Ratios and Indices on Classification Accuracy of Multispectral Satellite Images

Author name: سيف كامل شنين
Supervisor name: اياد عبد العزيز العاني | صلاح عبد الحميد صالح
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:
Abstract: Multispectral satellite images are holding whole information about the areaunder investigation. Many of digital processing techniques are used to extractmost of the possible information from these images, such these techniques arespectral band ratios, Tasseled Cap transformation and Principle ComponentAnalysis (PCA). These techniques are play good part for features extraction andreducing the number of spectral bands with no loses in information.The research aims to apply classifications on band ratios and image indiceswhich include PCA and Tasseled Cap transformations, of Enhanced ThematicMapper Plus (ETM+) satellite images, and to show how the accuracies of theclassification are differ from the accuracy of classification of the raw ETM+ bandsimages.The results show that the best bands ratios that adopted to represent fiveselected land features are 5/7, 4/5, 2/5, 1/4, and 2/4. Optimum Index Factormethod (OIF) has been adopted on raw bands combinations, and on the bandsratio combinations to select which band combination that contains muchinformation, where the results show that the best combination for raw bands is3 - 4 - 7, and best combination for ratios band is 4/5 - 1/4 - 2/5.Iterative Self Organizing Data Analysis (ISODATA) method has beenadopted as unsupervised classification, and Maximum Likelihood method assupervised classification. The overall accuracies are 87.18%, 89.45%, 89.26%,and 89.52% for raw bands, band ratios, Tasseled Cap, and PCA respectively,which showed that transformation techniques give good spectral enhancementsand feature extraction which are undistinguishable in raw image, and representgood tools to increase the accuracy of classification.

دراسة متانة الربط الانتشاري بين السيراميك والمعادن في الحالة الصلبة == Investigation of the Relaibility of Diffusion Bond Strength Between Ceramic - Metals in Solid State

Author name: اروى غازي ناجي الطائي
Supervisor name: زاريه ازات سركيس | ثامر عبد الجبار جمعة
General topic: Physics
Specific topic: Solid State and Materials Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:
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