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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:

تطوير منظومة ليزر Nd:YAG التشغيل المفتاحي باستخدام الاغشية الرقيقة الماصة القابلة للتشبع

Author name: احمد هاشم عبود ال شاهين
Supervisor name: حسن حمادي محمد | عاليه حسن موسى
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Master
University: Al-Nahrain University - College Of Science
Language: Arabic
University location: Baghdad
First pages:

بناء ليزر نيتروجين TEA - TEA

Author name: قصي حياوي علوان القيسي
Supervisor name: محمد صالح احمد | قادر حمود الشرع
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Master
University: Al-Nahrain University - College Of Science
Language: Arabic
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:

تحضير ودراسة خواص الفصل لطور ثابت جديد لتقنية HPLC == PREPARATION AND CHARACTERIZATION OF NEW HPLC STATIONARY PHASE

Author name: هاجر سعد نجم
Supervisor name: شهباز احمد مكي
General topic: Physics
Specific topic: Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Chemistry Department
Language: English
University location: Baghdad
First pages:
Abstract: prepared by the reaction of congo red solution with amberlite anion exchange.SUMMaRYThe F.T.I.R elemental analyses have configured the attachment of congo red on the resin as has indicated by the physical appearance of the new resin.The resin capacities of newly prepared resin has calculated the resin capacity for the amberlite - congo red resin was found to average 7.36 meq/ gm and for the amberlite resin 3.0 meq./gm.The new stationary phase has been packed into stainless steel column. This has been done by the special technique. The chromatographic performance of the packed column was characterized the number of plate numbers, height equivalent of a theoretical plates(HETP) capacity factors, selectivity factor and peak asymmetry were measured by analyzing different analysis on the new column using different mobile phases composition and flow rates. The parameters were measured from analysis of some amino acids such as phenyl alanine, tyrosine and tryptophan. The analysis of amino acids using amberlite - congo red column has performed with an aqueous mobile phase adjusted at pH 10. The average number of plates, N was(111.09 - 284.3) . The plate height H was (0.01343) cm, capacity factor, ḱ were ranged from(3.5 - 3.76). and peak asymmetry value was1.06. The analysis of some amino acid of the some column but with a mobile phase adjusted at pH 10 with 20% aceto nitrile, the chromatographic parameters were plate’s number, N was(176.3307). plate height H was(0.128) cm, capacity factor Ќ were ranged from(2.98 - 4.65).

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:

دراسة تعجيل الالكترونات باستخدام تفاعل الليزر مع البلازما الممغنطة للاتصادمية == Study of Laser Acceleration of Electrons in a Magnetized Collisionless Plasma

Author name: امال محمد كنيوي العكايشي
Supervisor name: خالد عباس يحيى | محمد عبد الزهراء حبيب
General topic: Physics
Specific topic: Electronics Physics
Degree: Master
University: Al-Nahrain University - College Of Science - Physics Department
Language: English
University location: Baghdad
First pages:
Abstract: A theoretical and computational investigation was carried out in the field of laser - plasma interaction using the Finite Difference Method to study the acceleration of electrons with non - relativistic velocities in a non - magnetized and magnetized collisionless plasmas.First, a (Nd : YAG) laser pulse of 25 fs duration and 5x1015 W/cm2 intensity was assumed in the present study.When this laser pulse was allowed to interact with a stationary electron in vacuum, it was found that the electron is accelerated during the interaction only and returns to stationary state after the laser pulse has passed, in agreement with previous works.Also, the interaction of the same laser pulse with a collisionless plasma at electron density ne= 1x1018 cm - 3 was studied. It was noticed that the energy of the electron during the interaction has reached a maximum value of ~ 1 keV at laser pulse intensity of 5x1015 W/cm2, while the energy of the electron after the interaction reached ~ 15 eV for the same laser pulse intensity.Finally, the interaction of the same laser pulse with a plasma was studied at electron density ne=1x1018 cm - 3 in the presence of an external magnetic field for the three values of the field strength B= 60 MG, 70 MG and 80 MG. It was found that there is an increase in the acceleration of the electron to reach a maximum energy of ~ 19 keV at a laser pulse intensity of 5x1015 W/cm2 and an applied external magnetic field strength of 80 MG during the interaction. However, the electron energy after the interaction reached ~ 3 keV at a laser pulse intensity of 5x1015 W/cm2 and an applied external magnetic field strength of 70 MG. This is due to a sustainable generated laser wakefield of ~ 2x109 V/cm. Thus, it is concluded that an applied external magnetic field assists the acceleration of the electron and can subsidize for a high laser beam intensity

محاكاة العين البشرية باستخدام الخوارزمية الجينية == SIMULATION OF HUMAN EYE USING GENETIC ALGORITHEM

Author name: لؤي عبد الصاحب رسول الطائي
Supervisor name: سهى موسى خورشيد الاوسي | محمد صاحب الطائي
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: The aim of this research is simulate an optical system for the human eye using Genetic algorithm. The considered optical characteristics of the optical system simulator include spot size (Z), spot diagram, and effective focal length (EFL). These characteristics are determined with the aid of some mathematical relations, which give the efficiency and accuracy of the adopted optical system design. The work has been performed in two stages : In the first stage, Genetic Algorithem optimization (GA) is used to get the best design by optimizing the optical featurs of the eye elements. The optimal eye design was tested using Zemax software, the test includes estimation of the image quality, and optimal performance for the proposed optical eye system.The second stage was implementing a specially developed software to simulate the behavior of the human eye. The simulator using visual basic 6 and works under Windows operating system, it is able to plot the eye design graphically, and can estimate the considered optical functions to determine the efficiency of the eye simulator.The simulator showed agood results for spot size, spot diagram and EFL, the present work has been gained some credibility when the considered optical functions achieved by the simulator are found compatible with those achieved by Zemax, since the comparison showed a behavioral matching between them, which ensure the correct path of the GA based eye design and the successful proposed eye design.
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