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دراسة نظرية للحركة الارتجاجية في الكرافين احادي الطبقة والانابيب النانوية الكربونية احادية الجدران == Theoretical Study of Trembling Motion in Monolayer Graphene and Single-Walled Carbon Nanotubes

Author name: علاء محمد حسن
Supervisor name: ماجد محمد جاسم
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

دراسة نظرية لسلوك دالة الموجة في تكثيف بوز - اينشتاين == Theoretical Study of The Behaviour of The Wave Function in Bose - Einstein Condensation

Author name: صدام جاسم محمد العطواني
Supervisor name: نوري حسين نور الهاشمي
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

دراسة نظرية لتاثير بعض معاملات ليزر النقطة الكمية InGaAs/GaAs == Stady of Effect Some Parameters of quantum dot laser InGaAs/GaAs

Author name: حنين فالح حمود
Supervisor name: رائد محمد حسن
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

دراسة نظرية للخصائص الالكترونية والمغناطيسية للحجم والسطح لمركب الملح الصخري CsTe ومركب زنك بلند باستخدام حسابات المبادئ الاولية == Theoretical Study of Elecronic and Magnetic properties of the Bulk and Surface of Rock Salt Structure CsTe and Zinc-blende Structure RbSe by Using First-principles calculations

Author name: احمد حمد عاتي
Supervisor name: جبار منصور خلف
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

دراسة نظرية للخصائص الالكترونية للكرافين والانابيب النانوية الكربونية الاحادية الجدران تحت تاثير التشويه الميكانيكي المرن

Author name: نجلاء باقر كمر
Supervisor name: ماجد محمد جاسم
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

عملية النفق الرنيني في المهجر النفقي الماسح مع مواد كاربون نانوية كراس مجس == The Resonance Tunneling Process in Scanning Tunneling Microscope with Carbon Nanomaterials as a Tip

Author name: علاء خالد بندر
Supervisor name: جنان مجيد عبد السادة
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

تحضير اغشية لبوليمربولي مثيل ميثاكريلايتPMMA)) المشوب بصبغة الفلوريسين ودراسة خواصها البصرية وتطبيقاتها كمتحسس غازي == Preparation of Films For Polymer Polymethyl- methacrylate (PMMA) is doping by Fluorescein Dye, study their Nonlinear Optical Properties and their Applications as a Gas Sensor

Author name: عقيل لفته مغامس الجابري
Supervisor name: حسين علي بدران | حسين فالح حسين
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

دراسة الخواص البصرية والكهربائية لاغشية رقيقة من صبغة المالكيت كرين النقية والمشوبة == Study of optical and electrical properties of pure and doped Malachite green dye thin films

Author name: حسین صبري شاكر
Supervisor name: ولید علي حسین | حسین علي بدران
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

دراسة نظرية لتاثير مجال خارجي معتمد على الزمن على قناتي البرم لنظام نقطتين كميتين على هيئة T == Theoretical Treatment for the Time Dependent External Field Effect on the Spin Channels of T-shaped Double Quantum Dots System

Author name: ماجد عبد الله ناطق
Supervisor name: جنان مجيد المخ | جبار منصور خلف
General topic: Physics
Specific topic: Electronics Physics
Degree: Doctorate
University: University Of Basrah - College Of Education For Pure Sciences
Language: English
University location: Basrah
First pages:
Abstract: ان دراسة نقل البرم المعتمد على الزمن خلال انظمة النقاط الكمية له اهمية في الدراسات النظرية
والعملية, و عليه تم دراسة وتحليل نقل البرم المدعوم بمجال خارجي معتمد على الزمن خلال
موضوعتين بين قطبين غير اعتياديين. T نقطتين كميتين على هيئة
ان الهاملتونين المعتمد على الزمن, الذي يصف هذا النظام يتبع اسلوب الترابط المتين في اخذ
تفاعلات الاقتران المعتمدة على البرم لكل اجزاء النظام بنظر الاعتبار. المعالجة النظرية تمت
باستخدام اسلوب مؤثر زمن–النمو حيث تم اشتقاق معادلات الحركة لعناصر مصفوفة مؤثر زمن–
النمو. تم باستخدام تمثيل التفاعل حل اثنان وثلاثون معادلة تفاضلية– تكاملية للبرم الاعلى والبرم
الاسفل, حلاً عددياً باستخدام طريقة رانج – كوتا من الرتبة السادسة, حيث تم تدقيق الخطا عند كل
خطوة زمنية. اما بالنسبة الى الحسابات المعتمدة على الطاقة فقد انجزت باخذ كثافة الحالات
للاقطاب الفيرومغناطيسية بنظر الاعتبار. بينما استخدم التقريب الاديباتيكي لمعالجة تاثيرات
مميزات المجال الخارجي معتمد على الزمن )التردد والسعة( نظري اً.
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دراسة تاثير التشويب بدقائق الكاربون النانوية على الخواص الكهربائية للبوليمر P3HT واستخدامة في تصنيع ترانزستور تاثير المجال OFET == Study Of The Effect Of Carbon Nano particles (CNPs) On The Electrical Properties Of The Polymer (P3HT) To Be Used In Manufacturing An Organic Field Effect Transistor (OFE

Author name: ناظم عبد الجليل عبد الله الخمسين
Supervisor name: وليد علي حسين | حسين فالح حسين
General topic: Physics
Specific topic: Physics
Degree: Doctorate
University: University Of Basrah - College Of Education For Pure Sciences
Language: English
University location: Basrah
First pages:

دراسة الخواص البصرية ل DNA المشوب بصبغة bromide

Author name: نور الهدى صالح يعقوب
Supervisor name: حسين علي بدران
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

الملوثات الاشعاعية في الاوحال واللباب والماء المصاحب لانتاج النفط الخام في حقول النفط جنوب العراق == RADIOACTIVE POLLUTANTS FOR SLUDGE, WELL - CORE AND PRODUCTION WATER OF OIL FIELDS IN SOUTHERN OF IRAQ

Author name: ﻣﺴﻄﺮ ﻋﺒﺪ ﷲ ﻋﻠﻲ
Supervisor name: عبد الرضا حسين نصير | ﺛﺎﺋﺮ ﻣﻨﺸﺪ ﺳﻠﻤﺎن
General topic: Physics
Specific topic: Applied Physics
Degree: Doctorate
University: University Of Basrah - College Of Education For Pure Sciences
Language: English
University location: Basrah
First pages:

ترتيب مستويات والتركيب ?=0+ Ge وZr الحزمي لبعض انوية المختارة == Systematic of J? = 0+ States and Band Structure for Selected Zr and Ge Nuclei

Author name: مروة صلاح الدين مهدي الموسوي
Supervisor name: فالح حسـين خـضـير | عبد الرضا حسين صبر
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

قياس جرع التعرض الاشعاعي للمرضى والعاملين في اقسام الاشعة السينية في بعض مستشفيات محافظة البصرة باستخدام تقنية التالق الحراري == Measurement of Radiological Exposure Doses for Patients and Staff In X-ray Departments In Some Basrah Hospitals Using TLD Technique

Author name: مراد كريم عبد الله
Supervisor name: رياض جاسب ابو الهيل
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

دراسة نظرية للتركيب الالكتروني والخواص المغناطيسية الحجمية والسطحية لسبيكة هيوسلر الرباعية CoXMnSi (X:Nb,Ru) == A Theoretical Study of Electronic and Magnetic Properties of the Bulk and Surface of the Quaternary Heusler Alloy CoXMnSi (X:Nb,Ru)

Author name: عمار عبد الجبار كاظم الحسن
Supervisor name: جبار منصور الزيادي
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

الاستجابة البصرية اللاخطية باستخدام الخواص البصرية الحرارية لصبغة بلورة الرفامبين الحمراء البنية == NONLINEAR OPTICAL RESPONSE USING THERMAL OPTICAL PROPERTIES OF DYE RED-BROWN REFAMBIN CRYSTAL

Author name: علياء عبد الجبار جري
Supervisor name: حسين علي بدران
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

تحضير خلطة البولي يورثين ايبوكسي النقية والمشوبة بمضافات محلية ودراسة بعض خواصها الفيزيائية وتطبيقاتها كبوليمر مضاد لبعض الكائنات الجرثومية == Preparation mix polyurethane - epoxy pure And tinged with local Avadavat ,study s ome of Physical Properties And It's Application as anti-microbial polymer

Author name: ريام احمد مطشر
Supervisor name: خالد ابراهيم عجيل
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

دراسة نظرية في التاثيرات البرمية الحرارية للنقطة الكمية في مجال مغناطيسي == Theoretical Study in the Thermospin Effects for the Quantum Dot in a Magnetic Field

Author name: ريمان جمال جاسم
Supervisor name: جنان مجيد المخ
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

دراسة نظرية للخواص الالكترونية والمغناطسية للحجم والسطح للمركبات MBi (M=V, Cr, Mn) والحد الفاصل MnBi/HgTe == A Theoretical Study of electronic and magnetic properties of the bulk and surface of compounds MBi (M= V, Cr, Mn) and the interfaces of MnBi/HgTe

Author name: نهاية هادي عبد الوهاب
Supervisor name: جبار منصور الزيادي
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:

تقييم اداء تصاميم جديدة لسخان الماء الشمسي في مدينة البصرة30.5°N == Evaluation of new designs of solar water heater in Basrah city 30.5° N

Author name: كوثر كاظم منخي
Supervisor name: نوري حسين نور الهاشمي | جاسم مهدي الاسدي
General topic: Physics
Specific topic: Solar Energy Physics
Degree: Doctorate
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:
Abstract: The main goal of the current study is the benefit of solar energy as the origin of any renewable energy for producing a hot water through multiple solar collectors each one with overall capacity about 26 liter so that, these collectors arranged in sequential order within the construction of the house without affecting the artistic aspects of the house. These collectors will capable of providing the house the needs of hot water for domestics use especially during the winter season. It will reduce the amount of energy such as electricity and or kerosene or any other source of energy that usually used in Basrah.The present study is included the design and manufacture of seven models of solar collectors. The tools that have used into manufactured of these collectors are some cheap materials that are available in Basrah markets. These models are differ from each other by some aspects with additions properties. The thermal performance and efficiency have a test and then choose the best one in order to use it in four different modern designs of solar heaters.the thermal performance of the manufactured heaters models are tested by calculate the amount of hot water supply under difference weathers conditions in the city of Basrah, which sorts as a large abundance of solar radiation. It also test two types of arrangement of difference parts of heaters. The practical test has been proven the advantage of linking hot water reservoir tank with cold water and then linking the whole system with the hot water tank. This arrangement will allow of gradual warming of the water, which allows the consumer get the hot water directly from the system and not from the reservoir. This study include what is called a feedback arrangement system in order to increase the benefit from solar radiation. In this case, the hot water will recycle to allow for moreexposure to solar radiation repeatedly, that in the case of non - use or the case of little use.All the experiment Steps carried out on the roof of the department of physics building's in the college of education for pure Sciences, Basrah university in the northern city of Basrah, located at latitude 30.50 N and longitude 47.80 E during the winter season 2013 - 2014. Al thought this winter characterized by abundant of rain and clouds the models No.5 shows very good results interm of high temperature of hot water and the amount of it. The temperature was reach (900 C). In addition the model No.4 which depend on the technique of feedback idea shows a good result interm of the amount of hot water produce which reach (146 liter) at a temperature about (500 C) with in only five hours starting at 10 : 00 am until the 2 : 00 pm.In order to develop the optimum dimensional measurements of the solar collectors a mathematical model was developed to predict the output temperature of hot water from the solar collectors or from the radiator in general for different dimensions. This model is working successfully and achieved data that in comparable with our experimental ones. The experimental results have been analyzed theoretically to compare the performance of all solar collectors of the heaters, in different weather conditions and in a same time.

درجة الحرارة المميزة وطاقة الاثارة الدنيا لليزر النقطة الكمية الشبه الموصل == Characteristic Temperature and Lowest Excitation Energy of Semiconductor QD laser

Author name: غيث منور علي
Supervisor name: رائد محمد حسن
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:
Abstract: In this work, we have studied important theoretical relationships in Semiconductor Quantum Dot Laser (QDL) Characteristics.The study is based on theoretical model equations that are derived from the rate equations. The equations were applied on experimental parameters of continuous - wave QDL GaInP/InP at 1.55μm wavelength to get theoretical simulation of the characteristics of this laser type.We also studied the temperature effect on the internal losses and the impact of these losses in determining the characteristics of the temperature of QD. The results were presented within two cases; the first is when there are no internal absorption losses and the second where there is no existence of these losses. Also, we studied the effect of ambient temperature on the characteristics of temperature for each of QD and OCL.The lowest excitation energy of QD has been studied in two control cases : with surface density of QD and with cross - section of internal losses.Throughout changing many systems and control parameters, the effects of these parameters have been studied according to the different kinds of relationships. In this research, we have studied the parameters : Surface density of QD, mean size of QD, optical confinement layer, radiative constant for OCL material, spontaneous radiative recombination time, root mean square of QD size fluctuations, cavity length and mirrors reflectivity.Some of the results in this work were compared with other experimental results of other researchers who applied the QDL model and showed a good matching.

التقنين الاشعاعي البيئي للمياه الجوفية في غرب محافظة البصرة باستخدام تقنية التالق الحراري == Environmental Radiation Dosimetry of Groundwater in West of Basra Governorate using Thermoluminescence Technique

Author name: سيف قاسم هلال
Supervisor name: رياض جاسب ابو الهيل
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:
Abstract: This study includes calculation the dose rate of emitted gamma - rays from groundwater taken from different locations in the Basra govemorate by use of thermoluminescence technique . it emphasis on the the characteristics of TL - reader ,TL - dosimeter (calcium fluoride) to know the suitability of these systems for environmental monitoring. It is found that the zero dose reading for calcium fluoride is 0.18 m rad .It is also found that most dosimeters of the same materials have nearly equal sensitivities and that all thebatches have high uniformity which makes them capable for environmental use. Experimental observations have indicated that there is linear relation between response and dose for the material which qualifies it for measuring doses within the low dose range. The variations in the response of the TL - reader using internal light source have also been investigated ,it is found that TL - reader has high stability .The fading in a environmental field for calcium fluoride is 7% in one month.Making sure that these systems are suitable for environmental monitoring programing ,calcium fluoride has been used for measuring gamma - rays emitting from natural background radiation ,it is foundthat the natural dose rate of gamma - rays emitted from the locations : Albrjisiya, khor aizubair, Safwan, Jabal Sanam, Um Qasr, Um Eanij and Al - lahees are (5.80,6.41, 5.32, 5.25,5.26,4.60 and 4.86) μrad/h receptivity . Thus, the dose rate of radiation emitted From ground water of province of Basra is 5.35 μ rad/h . the results proved that the inhabited area ling within the environmental monitoring satiations are the area in which the radiation is natural and that the rate that the human being exposed equal 11.5μrad/h which considered naturalexposure limit.

دراسة نظرية لانتشار نبضة كاوسية في الياف البلورة الفوتونية والعوامل المؤثرة فيها == Theoretical Study of the Propagation Gaussain Pulse in Photonic Crystal Fibers and the Parameters Influencing it

Author name: دعاء حسين هاشم
Supervisor name: حسن عبد الله سلطان
General topic: Physics
Specific topic: Physics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:
Abstract: In this thesis the propagation of short Gaussian pulse in Photonic Crystal Fibers (PCFs) are studied, the effect of the fiber parameters on the pulse like the absorption, dispersion and nonlinearity studied also.Nonlinear Schrodinger Equation (NLSE) was solved numerically using the spectral or Split - Step Fourier Method (SSFM) to determine the pulse spatio - temporal evolution.The study includes the effect of the photonic crystal arrangement especially the holes number, hole - hole spacing and holes dimeter on the effective refractive index and the dispersion of the photonic crystal fiber.The Nonlinear Schrodinger Equation (NLSE) was solved using the Finite differences in the frequency domain (FDFD) method.The two zeros dispersion were studied to calculate the zero dispersion wavelength (ZDW) by applying the international golden ratio (1.16180339887) for the ratio of the hole - hole spacing to the holes dimeters.The study shows that the pulse propagation depends strongly on the absorption, dispersion and nonlinearity of the PCF, and the pulse wavelength must be near the ZDW to ensure the propagation with little loses.The dependence of the nonlinear refractive index, the dispersion and the ZDW of the PCF were proved.The study shows that the golden ratio can be used to have two ZDWs, and a new ratio of hole - hole spacing to the hole dimeter equal to 2 can be used to achieve two ZDWs.

حساب كثافة الحاملات في طبقة الحصر البصري واشغال الحاملات المحصورة في منظومة ليزر النقطة الكمية نوع GaInAsP/InP == Calculating the Carrier Density in OCL and Confined Carrier Occupation in Quantum Dot Laser System Type GaInAsP/InP

Author name: ایمان ذیاب شرشاب
Supervisor name: رائد محمد حسن
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:
Abstract: In this work, we have studied many control parameters effect which plays an important role to determine the density concentration of carriers in the Quantum Dot Laser (QDL) system. Our study is based on theoretical model equations which derived from the rate equations. The equations were applied to the GaInAsP/InP QDL with wavelength 1.55μm. We produce a theoretical simulation and analytical solution of the equations by a Mathematical program.Theoretical equations are used to study the effect the parameters by controlling the value of each : the carrier's density and occupancy of the Level of a carrier confined in a QD. There are two cases : when the cross - section of the internal absorption losses has a influential amount and a nather it case when approaching zero border. As well as, we study the impact of the parameters on the threshold current density and its compounds. In addition, we study the role of these parameter to determining the maximum temperature of QDL operation through effect on temperature rang of the system.The temperature effects on the carriers’ activities in the system are studied, whereas the characteristics temperature of QDL has been studied in the two cases : with / without internal losses.The effects of structure and control parameters are applied to Study many factors. Such as : surface density of QD, mean size of QDs, optical confinement layer, spontaneous radioactive recombination time and resonator losses.

دراسة مقارنة بين ليزرات الابار الكمية والنقاط الكمية == Comparative Study Between Quantum Wells and Quantum Dots Lasers

Author name: وطن حمود جبر
Supervisor name: جاسب عبد الحسين مشاري
General topic: Physics
Specific topic: Laser Physics and Electro-optics
Degree: Master
University: University Of Basrah - College Of Education For Pure Sciences
Language: Arabic
University location: Basrah
First pages:
Abstract: In the work we present a comprehensive comparison between the dynamics of quantum well and quantum dot semiconductor lasers working autonomously using two models, the first describe the temporal variation of carriers and photon densities respectively in the quantum well lasers and the second describe the carriers occupancies in the wetting layer and quantum dot and photon occupancy in the quantum dot lasers .The study was carried out on the delay time and level of the dc part of their power under the effect of the many parameters that appeared in those models. Both lasers dynamics were studied in the presence of injection current modulation which enhances lasers power range from periodic to chaotic one with varieties of periodic states such as period.1, period.2, period.3, period.4 and period.6. Developed chaos was noticed to occur.We propose and investigate a simple method to obtain complex output power from both lasers via pulse shaping of the injection current. During the three methods studied we noticed similarities and discrepancies in both lasers dynamics.
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