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منظومات تضمين العامل المتغير الفوضوي == Chaos Parameter Modulation Schemes

Author name: ابراهيم فهمي علي
Supervisor name: حكمت نجم عبد الله
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: في هذه الدراسة, تم تصميم منظومتين من CPM وتم تقييم ادائهما في مختلف قنوات الاتصال. اولا, تم اقتراح تقنية فعالة لتخمين القيمة الابتدائية للاشارة الفوضوية في منظومة تضمين القيمة الابتدائية المسماة M - ary ICM. هذه التقنية سميت ب MACE. هذه التقنية قللت من تع | In this study, two Chaotic Parameter Modulation(CPM) schemes are designed and their performance in different communication channels has been evaluated. Firstly, an efficient technique for initial condition estimation of chaotic signal in M - ary Initial Condition Modulation (ICM) scheme is proposed. This technique has been called Maximum Auto Correlation Estimation (MACE). It reduces the complexity of the demodulator; thereby, it minimizes the hardware implementation cost. Simulation results confirm that, the proposed technique outperforms the conventional technique used in direct sequence spread spectrum quadrature amplitude modulation (DSSS - QAM) system in AWGN channel when high modulation level (M) is used. At BER=10 - 3, 16, 256 ary DSSS - QAM achieve gains in Eb/N0 of about 7dB and 0.8dB in comparison with 16, 256 - ary ICM respectively because the modulation level is low. While 1024, 4096 and 16384 - ary ICM achieve gains in Eb/N0 of about 6dB, 10dB and16.5dB in comparison with 1024, 4096 and 16384 ary DSSS - QAM respectively because the modulation level is high. Furthermore, a modified version of ICM that uses BPSK modulation and one chaotic signals source together with MACE technique is proposed to reduce the implementation cost named as BPSK - ICM scheme. Simulation results confirm that, BPSK - ICM has a comparable BER performance to the DS - SS system in AWGN channel.Secondly, the bifurcation parameter of a chaotic signal has been estimated accurately by utilizing the ergodic properties of a chaotic dynamical signal. In BPSK ergodic chaotic parameter modulation (BPSK - ECPM) scheme, the information signal modulates the bifurcating parameter of the chaotic signal. A mean value estimation technique is used at the receiver to retrieve the original information accurately. This method minimizes the computational complexity of the receiver; thereby, reduces the total implementation cost.Simulation results show that, at BER=10 - 3, BPSK - ECPM scheme achieves gains in Eb/N0 of about 1dB, 1.5dB, 5.2dB, 6.5dB, 9dB, 10 dB and 11 dB, as compared with CSS, CC,FM - DCSK, DCSK,CSK,COOK and QCSK schemes respectively in AWGN channel. While in Rayleigh fading channel, at BER=10 - 3, BPSK - ECPM achieve gains in Eb/N0 of about 4.8dB, 5.8dB, 6.5dB and 11.8dB, as compared with FM - DCSK,CSS,CC and DCSK schemes respectively. Furthermore, BPSK - ECPM scheme outperforms conventional chaotic modulation systems in the presence of synchronization error and high data rate problems. Finally, BPSK - ECPM scheme shows a good recovery performance of image signal in multipath fading channel for intelligent transportation system (ITS).

تطبيق الشبكة العصبية في تكوين الشعاع المتكيف لنظام الهوائي الذكي == Neural Network Application In Adaptive Beamforming For Smart Antenna System

Author name: سليمان احمد غازي
Supervisor name: عضيد حسن سلومي
Specific topic: Electrical Engineering
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: انظمة الهوائيات الذكية تعمل على تحسين الاداء وزيادة في السعة لانظمة الاتصالات المتنقلة. ويمكن لانظمة الهوائيات الذكية حل مشكلة نظام الاتصالات المتنقلة مثل التدخل في نفس القناة، والتاخير الحاصل نتيجة الانتشار والمسارات المتعددة التي تاخذها الاشارة عن طريق | The smart antenna systems are promise to provide performance improvement and capacity increasing for the base station of mobile communication systems. Smart antenna systems can solve the problem of mobile communication system such as co - channel interference , delay spread and multipath by an advance signal processing technology called beamforming. In this work artificial neural networks (Feed Forward Neural Network (FFNN) and feedback Elman Recurrent Neural Network (ERNN) ) are used for smart antenna adaptive beamforming for one and multiple targets.Neural network is used to calculate the optimum weights of antenna array to adapt the radiation pattern of the antenna array by directing multiple narrow beams toward the desired users and nulling interference or unwanted users. FFNN and ERNN are trained by supervised backpropagation learning algorithms, FFNN was trained by using Levenberg - Marquardt (lm),Resilient Back - Propagation (Rprop), Gradient descent with momentum and adaptive learning rate (gdx), Gradient descent and adaptive learning rate (gda) and biasing regulation(br), while lm and Rprop are used to train ERNN..The simulation results show that the best performance of smart antenna adaptive beamforming for one and multiple targets is obtained when the NN (FFNN and ERNN) trained by lm algorithm as compared with other algorithms, since it consider the fastest supervised training algorithm but with more memory requirement. Where the performance of FFNN training phase based (lm) algorithm for single target for five element uniform linear array antenna is [2.746641e - 14] at epoch 27 with best validation performance and best test performance approximately equal to the best training performance. While The performance of ERNN training phase based lm algorithm for single target is [1.121938e - 14] at epoch 38 with best validation performance equal to [1.682442e - 14] and the best test performance is [3.363946e - 14].The neural network model in adaptive beamforming are compared with smart antenna adaptive beamforming based on Least Mean Square (LMS) algorithm, and gave better performance than LMS.

تطويرات في انتروبي نظرية المعلومات == Developments of Entropy Information Theory

Author name: نور حسن حميد
Supervisor name: صلاح حمزة عبد البديري
General topic: Mathematics
Specific topic: Mathematics
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: انتروبي شانون هو عبارة عن مقياس لعدم التاكدية في المتغير العشوائي ويعرف بالشكل H(x)= - E Ln [f(x)] سيكون هو محور الاهتمام في هذه الرسالة.سيتم في هذه الرسالة تقديم ثلاث تطويرات الاول منها يتمثل بتعديل صيغة GW لتحديد عدد الحدود m الداخلة في تقدير دالة الانت | Shannon entropy is a measure of the uncertainty in a random variable, which is defined as H(x)= - E Ln [f(x)], will be under our consideration. In this thesis, we will introduce three developments, the first one is the modification of GW formula to determ

الحلول المشتركة لمعادلات المؤثر == Common Solutions of Operator Equations

Author name: احمد محمد خلف
Supervisor name: جاسم محمد صالح العزاوي | سالم داوود محسن
General topic: Mathematics
Specific topic: Mathematics
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: الهدف من هذا العمل هو دراسة وجود الحل لانواع محددة من معادلات المؤثرات الخطية واللاخطية. وكذلك وبعض الخواص لدالة معادلة المؤثر، وعلى النحو التالي : (1) درست ونوقشت الحلول العامة لمعادلات المؤثرات المقيدة الخطية واللاخطية, وبواسطة معكوس بيسيدو للمؤثرات و| The aim of this work is to study the solvability of some specific types of non - linear operator equations and some properties of mapping of operator equations, also present as following : (1) The solvability of general solutions for bounded non - linea

حول المجموعة الضبابية المفتوحة في الفضاءات التبولوجية الضبابية == on Fuzzy ? - Open Set In Fuzzy Topological Spaces

Author name: غزوان حيدر عبد الحسين
Supervisor name: منير عبد الخالق عزيز الخفاجي
General topic: Mathematics
Specific topic: Topology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: تحقق هذه الرسالة اربعة اهدافالهدف الاول هو دراسة بعض انواع المجاميع الضبابية المفتوحة تدعى (المجموعة الضبابية - ?, المجموعة الضبابية المنتظمة, المجموعة الضبابية - ?, المجموعة الضبابية - ?, المجموعة الضبابية ? ) مع بعض المبرهنات وبعض العلاقات فيما بينها ف | The first objective is to study some types of fuzzy open sets namely (fuzzy ? - open set, fuzzy regular open set, fuzzy ? - open set, fuzzy ? - open set and fuzzy ? - open set) with some theorems on them and some relations between them in fuzzy topologica

دراسة اطياف الامتصاص لبعض الجزيئات اللاعضوية في مناطق اطياف الاشعة فوق البنفسجية والمرئية وتحت الحمراء == Study The Absorption Spectra of Some Inorganic Molecules In UV - VIS - IR Rang of Spectrum

Author name: مريم سمير عبد الستار هاشم
Supervisor name: خالد حسن عبد المعموري
General topic: Physics
Specific topic: Physics
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: The study is dealt with inorganic compound molecules of polyatomic ions belong to different point groups. Through our study we made used the FT - IR to study of the vibrational spectra, and UV - VIS Spectroscopy to study and diagnosis the electronic spec

دراسة الخواص البصرية والتركيبية لاغشية Fe?O? : Al المحضرة بطريقة التحلل الكيميائي الحراري == Study of Optical And Structural Propertes of Fe?O? : Al Thin Films Prepared By Chemical Spray Pyrolysis Method

Author name: لمى لفتة راهي
Supervisor name: خضير عباس مشجل
General topic: Physics
Specific topic: Physics
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: حضرت اغشية اوكسيد الحديديك ( Fe?O? ) غيرالمشوبة والمشوبة بالالمنيوم (Al) باستخدام طريقة التحلل الكيميائي الحراري على قواعد من الزجاج وبتركيز (0.1) مولاري وبدرجة حرارة القاعدة (400?C) وبنسب حجمية مختلفة %(2,4,6,8).تمت دراسة الخواص التركيبية والبصرية، اذ | In this research Iron Oxide and AL doped Iron Oxide thin films were prepared using Chemical spray pyrolysis technique at (0.1 mol) on glass substrate at a temperature of (400?C) with volumetric concentration (2,4,6,8)%.The optical and structural properti

دراسة تاثير تشبع الاقطاب المغناطيسية اللاتقليدية على الخواص الشيئية == Influnce Investigation of The Unconventional Magnetic Polepieces on The Objective Properties

Author name: محمد جمعة حيدر الشمري
Supervisor name: حسن نوري العبيدي
General topic: Physics
Specific topic: Physics
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: في هذا البحث تم اجراء دراسة نظرية - حاسوبية تتضمن جزئين رئيسين. يتناول الاول منهما استخدام انموذج Gauss كدالة هدف في توليف العدسات المغناطيسية ثنائية القطب المتناظرة. افرزت هذه الدالة ثلاث متغيرات امثلية وهي القيمة العظمى لكثافة الفيض المغناطيسي، عرض ال | In this work, a theoretical - computational investingation have been carried out which compramize on two main parts. the first one deals with the using Gauss's model as a target function in synthesize symmetrical double polepieces magnetic lenses. This

تطوير مرشحات رقمية لتحسين الصور الطبية == Adaptive Digital Filters For Medical Images Enhancement

Author name: فلاح عابر بيده البيضاني
Supervisor name: زياد محمد عبود
General topic: Physics
Specific topic: Physics
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: تعد الضوضاء المرافقة للصور الطبية من جملة المشاكلات التي تواجه عملية تشخيص الامراض بواسطة هذه الصور، فضلا عن عدم جودة الصور بسبب الاضاءة والتباين المطلوبين، لانها تجعل عملية تفسير الصور الطبية الناتجة وتحليلها عملية صعبة، وتقلل من الفائدة المرجوة منها، ل | The noise accompanying the images medical among the problems faced by the process of diagnosing diseases by these images, as well as the lack of quality images because of the brightness and contrast wanted, they make the process of interpretation and anal

دراسة نظرية لتحديد افضل قدرة مستحصلة في منظومة القدرة التناضحية المفتوحة == Theoretical Study And Optimization of An Open Cycle Osmotic Power Process

Author name: مضر صباح حميد
Supervisor name: عادل عبيد شريف الحسيني | احمد فرحان عطوان
General topic: Physics
Specific topic: Physics
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: A great quantity of renewable energy can be potentially generated when waters of different salinities are mixed together. The harnessing of this energy for conversion into power can be accomplished by means of the Pressure Retarded Osmosis (PRO). This tec

الخصائص الميكانيكية الكهربائية والحرارية لمتراكبات البوليمر - انابيب الكاربون النانوية == Polymer - Carbon Nanotube Composites Mechanical, Electrical And Thermal Properties

Author name: فاطمة احمد خلف
Supervisor name: نجيبة عبد الله حسن الحمداني | طارق سهيل نجم
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: تعتبر البوليمرات ذات الاساس البوليمري من اهم المتراكبات بسبب قابليتها على الاندماج مع عدد من مختلف المواد. تم التركيز في هذه الدراسة على تطوير ودراسة خصائص متراكبات نانوية متكونة من الراتنج epoxy)) المتصلد حراريا كمادة اساس مضاف اليها الانابيب الكاربوني | Polymer matrix composites (PMCs) are one of the most important composites materials due to their ability to incorporate a number of different materials. This study focuses on development and characterization of thermosetting resin epoxy based nanocomposit

تصنيع وتوصيف خلايا شمسية مرنة == Fabrication And Characterization of Flexible Solar Cells

Author name: علي محسن عبد الحسين اللامي
Supervisor name: زينب عبد السلام الرمضان | فلاح ابراهيم العطار
General topic: Physics
Specific topic: Physics
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: تعد الانظمة الفوتوفولتائية من مصادر الطاقة النظيفة والتي بدات تاخذ مساحة مهمة من البحث، ان الاغلبية من الخلايا الشمسية تتميز بكونها صلبة ولم يراعى فيها عامل المرونة, لذا توفر الانظمة الفوتوفولتائية المرنة عدة ميزات في مجال سهولة النقل, مقاومة الكسر وخفة | As a source of clean, remote energy, photovoltaic (PV) systems are an important area of research. The majority of solar cells are rigid materials with negligible flexibility. Flexible PV systems possess many advantages, such as being transportable, unbrea

تحضير ودراسة بعض الخصائص الفيزيائية للمتراكب البوليمري النانوي PMMA/ZrO2 == Prepration And Studay Some Physical Properties of Polymeric Nano Compsite (PMMA / ZrO2)

Author name: نور ظايف حايف
Supervisor name: نجيبة عبد الله حسن الحمداني
General topic: Physics
Specific topic: Physics
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: تم في هذا البحث تحضير المتراكبات النانوية للبوليمر المطاوع للحرارة بولي مثيل ميثااكريلايت (PMMA) والمدعم بالجسيمات النانوية اوكسيد الزركونيوم ( ZrO2), وبحجم حبيبي (40 - 50nm) وبكسور وزنية مختلفة) wt%1,1.5,2.5,3,5(0, باستخدام الكلوروفورم كمذيب بطريقة صب ال | In this research, nanocomposites of thermoplastic polymer (Poly Methyl Methacrylate, PMMA) and nanoparticles reinforcement (Zirconium Oxides, ZrO2) have been fabricated with grain size (40 - 50nm) with different weight fraction (0, 1, 1.5, 2.5, 3 and 5 wt

تحضير ودراسة اغشية ZnO : Mn ذات التركيب النانوي بتقنية الترسيب البخاري الكيميائي تحت الضغط الجوي الاعتيادي == Preparation And Study of Nanostructure ZnO : Mn By Atmospheric Pressure Chemical Vapor Deposition Technique

Author name: هبة راشد شاكر
Supervisor name: صلاح قدوري هزاع
General topic: Physics
Specific topic: Physics
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: تم في هذا البحث تصميم وتصنيع منظومة الترسيب البخاري الكيميائي عند الضغط الجوي الاعتيادي ذات الجدار البارد محليا, وتشغيل المنظومة للحصول على افضل غشاء بواسطة تغيير ظروف التشغيل من حيث درجة حرارة القاعدة, زاوية ميلان القاعدة, موقع القاعدة داخل المنظومة, ك | In this research, atmosphere pressure chemical vapor deposition system, with cold wall has been designed and locally manufactured. This system operated to get the best thin film by changing the conditions of performing such as; substrate temperature, slop

دراسة تاثير السمك والتركيز على الخصائص الكهربائية والبصرية لـ بولي مثيل ميثاكريلات المشوب بملح التيتانيوم TiCl3 == Study The Influnce of Concentration And Thickness on Electrical And Optical Properties of PMMA / Ti Cl3 Salt Composite

Author name: فاضل تركي معن
Supervisor name: زينب عبد السلام الرمضان
General topic: Physics
Specific topic: Physics
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: تم في هذا البحث تحضير البوليمر بولي مثيل ميثاكريلات PMMA العازل اللدائني الشفاف بعملية بلمرة الاضافة الحجمية بواسطة الجذور الحرة باضافة البادئ بنزول بيروكسايد الى المونومير MMA.تم قياس اللزوجة باستخدام جهاز قياس اللزوجة عن طريق اخذ تراكيز مختلفة من النمو | In this research, The preparation of poly methyl methacrylate PMMA (the transparent plastic insulator) by polymerization the added volume by free radicals after adding the initator Benzoyl peroxide to the MMA monomer. The viscosity were measured by viscom

دراسة الخصائص البصرية والتركيبية لاغشية cdo الرقيقة المحضرة بطريقة الترسيب بالحمام الكيميائي == Study The Optical And Structural Properties of CdO Thin Films Prepared By Chemical Bath Deposition Method

Author name: كرار مهدي صالح
Supervisor name: فاطمة ياسين محمد
General topic: Physics
Specific topic: Physics
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: حضرت اغشية اوكسيد الكادميوم (CdO) الرقيقة من مادة كلوريد الكادميوم المائية (CdCl2.2H2O) ذات الوزن الجزيئي (201.33g/mol) وبتركيز مولاري (0.1M) على قواعد زجاجية بدرجة حرارة الغرفة(RT) بطريقة الترسيبب بالحمام الكيميائي. وقد تم دراسة تاثير السمك (t=127.35,241 | Thin films of cadmium oxide (CdO) have been prepared from 0.1M Cadmium Chloride dehydrate (CdCl2.2H2O) with molecular weight 128.4g/mol on glass substrates at room temperature (RT) by chemical bath deposition method (CBD). The influence of thickness (t=12

الخواص التركيبية والبصرية لاغشية Fe2O3 - NiO المحضرة بطريقة التحلل الكيميائي الحراري == The Structure & Optical Properties of (Fe2O3 - NiO) Thin Films Prepared By The Chemical Spray Pyrolysis

Author name: نورا جاسم محمد جبر
Supervisor name: نادر فاضل حبوبي
General topic: Physics
Specific topic: Physics
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: حضرت اغشية اوكسيد الحديديك ( Fe2O3 ) واغشية اوكسيد الحديديك الممزوجة باوكسيد النيكل NiO)) من المحاليل المائية لكلوريد الحديد الثلاثي (FeCl?.6H2O) وكلوريد النيكل (NiCl2.6H?O) بنسب مزج (% 10,20,30,40,50) بطريقة التحلل الكيميائي الحراري على قواعد زجاجية بدرج | Ferric Oxide (Fe2O3) and Nickel oxide (NiO) Mixed with Ferric Oxide thin films were prepared from an aqueous solution of [FeCl¬3.6H2O] Nickel chloride [NiCl2.6H?O] in volumetric concentration (10,20,30,40,50%) by chemical spray pyrolysis method onto glass

تصميم مضخة هجينة شمسية - جيوحرارية == Design of Hybrid Solar - Geothermal Heat Pump

Author name: علاء حسين شنيشل السوداني
Supervisor name: احمد فرحان عطوان | نصير كريم قاسم السوداني
General topic: Physics
Specific topic: Physics
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: مصادر الطاقة التقليدية مضرة بيئيا على العكس من مصادر الطاقة المتجددة. سعى العالم سوية في نهاية القرن الماضي الى تشخيص مشاكل تغير المناخ الذي ادى بدوره الى التفكير في سبل حفظ الطاقة والتقليل من الانبعاثات. تعتبر طاقة الجيوحراري (Geothermal energy) من الطاق | Conventional energy resources are environmentally harmful unlike renewable energy resources. At the end of the last century the world came together to address the problems of climate change; which led to the thinking of ways to conserve energy and reduce

الخزن الموسمي للطاقة الشمسية الحرارية : دراسة نظرية == Theoretical Study of Seasonal Storage Thermal Solar Energy

Author name: فاضل محمود عليوي
Supervisor name: احمد فرحان عطوان | نصير كريم قاسم السوداني
General topic: Physics
Specific topic: Physics
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: يتناول هذا البحث تخزين الطاقة الشمسية الحرارية الفائضة في فصل الصيف ( من ايار الى تشرين الاول) في داخل التربة، للاستخدام لاحقا ( في فصل الشتاء) للحد من استهلاك العالي للطاقة المستخدمة وكذلك لتقليل انبعاث غاز ثاني اوكسيد الكاربون. استخدم نموذج شبه ثلاثي ال | This research deals with storage of the thermal solar energy in the soil in summer season (from May to October) for latter utilization (in winter) for reduce the energy consumption. The quasi - three - dimensional model and finite line source model are us

دراسة تاثير البروبايويك في تكوين الغشاء الحيوي وانتاج البروتيز لبكتريا Pseudomonas aeruginosa المعزولة من اخماج الحروق والجروح == Study The Effect of Probiotic On Biofilm Formation And Production Protease Enzyme By Pseudomonas Aeruginosa Isolated From Contaminated Burns And Wound

Author name: علا عبد الكريم كاظم النعيمي
Supervisor name: منيرة جلوب اسماعيل العبادي | ضيماء محمود ابراهيم
General topic: Biology
Specific topic: Microbiology
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: he study includes the collection of 70 burns and wound swabs from patients of different hospitals, in Baghdad area, for the period from November 2013 to February 2014. 2) 31 isolates characterized as Pseudomonas aeruginosa 9 (45%) from wound and 22 (78.57%) from burn swabs, depending on the characteristics of the colonies phenotypic and microscopic when grown in differential selective media, as well as biochemical tests todiagnose isolates, Then the identification of these species were confirmed by using the system (GN I Card) using Vitek 2 device complementary step.3) The study includes sensitivity test towards 16 antibiotics for each species by using the system (AST Card) using Vitek 2 device, and the isolates ware Multi drug resistance, As results all isolates were resistant by 100 % for each of Piperacillin, Ticarcillin, Ticarcillinclavoulanic acid, Cefazolin, Ceftriaxone and Tigecycline. All strains were less resistance to Ceftazidime with percentage 50%. 4) All the isolates of Pseudomonas aeruginosa with percentage %100, have ability to produce protease enzyme.5) This study was use tow methods of biofilm formations seen in P. aeruginosa, Micro - titer plate method (MTP) and Tube method (TM), Results revealed that MTP was found to be more sensitiveand specific method for biofilm detection than TM. 6) Well diffusion method revealed the inhibitory effect of bacteria Lactobacillus acidophilus, Lactobacillus rhamnosus GG and its supernatants in the growth of bacteria Staphylococcus aureus and P. aeruginosa, and was the supernatant of L. rhamnosus GG isthe largest inhibitory effect on the growth of S. aureus and P.aeruginosa with inhibition diameter 32 and 34 mm respectively, while the inhibition of growth by supernatant of L. acidophilus diameter 25 and 27 mm respectively. 7) Estimated the amount of protein in each of the biosurfactant and bacteriocine producers of L. rhamnosus GG bacteria concentration of 74, 54 Mg/mL respectively, while their concentration in bacteria L. acidophilus 44, 40 Mg / mL, respectively.8) Found that the bacteriocine product of bacteria L. rhamnosus GG and L. acidophilus GG have inhibitory effect on ability of P. aeruginosa to produce the enzyme protease, and the absence of this effect in the Biosurfactants the product of these two types.9) The biosurfactant product from L. rhamnosus GG showed inhibitory effect greater than the effect of the biosurfactant product from L. acidophilus to inhibition (production of biofilm and adhesion to epithelial cells).10) studied the suspension's effect of L. acidophilus and L. rhamnosus GG in contrived injuries wounds in mice contaminated with P. aeruginosa, Positive results have been shown to be affected by the contaminated bacteria injuries wounds.

دراسة تصنيفية لحشرات عائلة الخنافس الرواغة Staphylinidae : Coleoptera في بعض محافظات العراق

Author name: كاظم عادل هادي
Supervisor name: سعدون ابراهيم اسماعيل
General topic: Biology
Specific topic: Zoology - Insects
Degree: Master
Language: Arabic
University location: Baghdad
First pages:

دراسة مقارنة للتاثير السمي للزنبور الاحمر Vespa Orientalis L والزنبور الاصفر Polistes Olivaceaus (De Geer) (Hymenoptera : Vespidae على تحلل كريات الدم الحمراء والتخثر لدى الانسان == Poison Effects of Red Wasp Vespa Orientalis L. And Yellow Wasp Polistes Olivaceaus (De Geer) (Hymenoptera : Vespidae) On The Decomposition of Red Blood Cells And Coagulation In Humans

Author name: شهد فلاح عباس
Supervisor name: سعدون ابراھیم اسماعیل | محمد عبد الرزاق الصوفي
General topic: Biology
Specific topic: Zoology - Insects
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: To study the impact of toxic of the the Red Wasp Vespa orientalis L. and yellow wasp Polistes olivaceaus (De Geer) from family (Vespidae) the decomposition of red blood cells and clotting in humans. Were collected 508 insect Red wasp was where the number of workes 390 insect the yellow wasp gathered 539 insect where the number of worker 418 insect, and the diagnosis was confirmed based on the taxonomic keys and professors speclalized in the natural history museum and then extracting machine stinging for poisonWasp red and yellow toxin were purified by gel filtration throw Sephacryl S - 200 were obtained on three peaks of proteins, and when estimated the activity of lysis and clotting for peaks separate P1, P2 and P3 for wasp red toxin, the lysis activity of separate P1 was 98% of the poison origin activity and the clotting time was 47.3 minutes, while the lysis activity of separate P2 was 62% of the poison origin activity and the clotting time was 27.53 minutes, and the lysis activity of separate P3 was 29% of the poison origin activity and the clotting time was 13.67 minutes, so P1 separate from Wasp red poison was selected to purification and study the molecular characteristics, while when estimated the activity of lysis and clotting for peaks separate P1, P2 and P3 for wasp yellow toxin, the lysisactivity of separate P2 was 91% of the poison origin activity and the clotting time was 43.8 minutes, while the lysis activity of separate P1 was 49% of the poison origin activity and the clotting time was 19.28 minutes, and the lysis activity of separate P3 was 29% of the poison origin activity and the clotting time was 7.52 minutes, so P2 separate from wasp red poison was selected to purification and study the molecular characteristics The molecular weight of wasp red and yellow toxin the protein cm wasp red toxin P1 was 22387 Da and wasp yellow toxin P2 was 22382 Da using the gel filtration Sephacryl S - 200, while the carbohydrates content were 60.057 and 44.460 mg/ ml for wasp red P1 and yellow P2 toxin respectively as determined by phenol - sulfuric acid method, and type of link between carbohydrates and protein in the separate P1 and P2 investigating by using gel filtration Sephacryl S - 200 and absorbance at 280 and 490 nm.The percentage of iron in wasp red P1 and yellow P2 toxin were 0.88 and 0.44 ppm respectively as determined by atomic absorption, the contain proteins separate P1 and P2 on the iron were investigating by using gel filtration Sephacryl S - 200 and absorbance at 280 and 557 nm. The optimum pH of lysis and clotting activity for wasp red toxin P1 was 6.5, while lysis activity was decrease in pH 4 and 8 to be 38 and 79% respectively from its original activity, and clotting time was decreased from 47.3 min at optimum pH to be 17.9 and 37.3 min at pH 4 and 8, respectively, it was noted that wasp red toxin P1 was constant in the pH range of lysis activity from 6 - 7.5, but it lost 67 and 25% from its original activity at pH 4 and 8 respectively, while the clotting time was constant in the pH range from 6 - 7.5, but it decreased in pH 4 and 8 to be 15.6 and 35.4 minutes respectively The optimum pH of lysis and clotting activity for wasp yellow toxin P2 was 6.5, while lysis activity was decrease in pH 4 and 8 to be 18 and 37% respectively from its original activity, and clotting time was decreased from 48.8 min at optimum pH to be 8.7 and 35.6 min at pH 4 and 8 respectively, it was noted that wasp red toxin P2 was constant in the pH range of lysis activity from 5.5 - 8, but it lost 74 and 19% from its original activity at pH 4 and 8 respectively, while the clotting time was constant in the pH range from 6 - 7.5, but it decreased in pH 4 and 8 to be 12.6 and 39.5 minutes respectively The results for optimum stability temperature of lysis and clotting activity for wasp red toxin P1 refer to increase activity by increasing the action temperature until it reached a maximum at a temperature 35oC, then lysis activity was decreased to be about 4% of its original activity at 80oC, while the clotting time was decrease from 48.8 minutes at the optimum temperature to be 1.8 minutes at 80oC, it was noted that the lysis and clotting activity were stabile at 35oC for 30 min, but it is beginning to decrease with increasing temperature to loses 84% of its original lysis activity at 80oC, and the clotting time was decreased from 47.3 min at 35oCto be 2.3 min at 80oC.The results for optimum stability temperature of lysis and clotting activity for wasp yellow toxin P2 refer to increase activity by increasing the reaction temperature until it reached a maximum at a temperature 35oC, then Lysis activity was decreased to be about 8% of its original activity at 80oC, while the clotting time was decrease from 48.8 minutes at the optimum temperature to be 3.9 minutes at 80oC, it was noted that the lysis and clotting activity were stabile at 35oC for 30 min, but it is beginning todecrease with increasing temperature to loses 98% of its original Lysis activity at 80oC, and the clotting time was decreased from 48.8 min at 35oC to be 5.3 min at 80oC.The results refer to found a relationship between the influence of the wasp type and dose on the red blood cells lysis degree in males and females, it was observed that the concentration had a significant effect (p<0.05) in the red blood cells lysis degree in females, it was 0.401 at concentration 100% for wasp red toxin P1, while it was 0.331 at the same concentrate for wasp yellow toxin P2, the concentration also had a significant effect (p<0.05) in the red blood cells lysis degree in males, it was 1.020 at concentration 100% for wasp red toxin P1, while it 0.842 at the same concentrate for wasp yellow toxin P2, also it refer to found a significant effect (p<0.05) between the effect of the wasp red P1 and yellow P2 toxin and dose on the red blood cells clotting time in females, itwas 46.80 min at concentration 100% for wasp red toxin P1, while it was 46.20 min at the same concentrate for wasp yellow toxin P2, the concentration also had a significant effect (p<0.05) in the red blood cells clotting time in males, it was 47.80 min at concentration 100% for wasp red toxin P1, while it 40.47 min at the same concentrate for wasp yellow toxin P2, there was no significant effects for blood clotting time when making a comparison between the wasp red P1 and yellow P2 toxin for eachconcentration in females and males. The compared between red blood cells clotting time due the wasp red P1 and yellow P2 toxin dose in females and males did not refer to found a significant effect (p<0.05), the clotting time for wasp red P1 was 46.80 and 47.80 min at concentration 100% for females and males respectively, while the clotting time at concentration 6.25% was 17.30 and 17.10 min for females and males respectively, whilst the clotting time red blood cells due wasp yellow P2 toxin in females was 46.20 min and 47.40 min in males at concentration 100%, and it was 17.00 min in females and 17.10 min in males at concentration 6.25%.

دراسة تصنيفية لعويلة الخنافس البرغوثية Alticinaeمن عائلة Chrysomelidae ورتبة غمدية الاجنحة Coleoptera في بعض محافظات العراق == Taxonomic Study On The Flea Beetles (Coleoptera : Chrysomelidae : Alticinae) In Some Provinces of Iraq

Author name: رغد عـبيد خضير
Supervisor name: سعدون ابراهيم اسماعيل
General topic: Biology
Specific topic: Life Science
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: تناول البحث لهذه الرسالة دراسة تصنيفية لعويلة الخنافس البرغوثية Alticinae في بعض محافظات العراق، علما ان هذه العويلة لم تدرس تصنيفيا في العراق.اختير النموذج Longitarsus ballotae Marsham. لتجسيد صفات العويلة. ولقد درست الاجزاء الرئيسة للجسم وهي الراس والص | The Subject of thesis is a taxonomic study of Subfamily Alticinae in some provinces of Iraq. Knowing that this Subfamily has not been studied taxonomically in Iraq.Was chosen as the model for Longitarsus ballotae Marsham. To embody the gualities of the Subfamily. The detailed study of the head, thorax, abdomen and their appendages was made to evaluate the reliability of the external characters in classifying the species of the Subfamily.There are eight genera and thirteen species for these Subfamily The species are : - Altica deserticola Weise.Aphthona fuentei Reitter.Aphthona sp. Chaetocnema montenegrina Heikertinger.Chaetocnema persica Baly. Epitrix atropae Foudras.Hermaeophaga ruficollis Lucas.Longitarsus ballotae Marsham.Longitarsus membranaceus Foudras.Longitarsus reichei Allard. Longitarsus succineus Foudras.Phyllotreta nemorum Linnaeus.Podagrica fuscicornis Linnaeus.6 Species Register in Iraq are : - Chaetocnema montenegrina Heikertinger.Epitrix atropae Foudras. Longitarsus succineus Foudras.Longitaarsus membranaceus Foudras.Podagrica fuscicornis Linnaeus.Two species Taxonomic keys were designed and developed to is olate the genera of Subfamily Alticinae, sa wellas the genera mentioned and studied in this thesis for each species.

كفاءة التنظيف لمبرد XP - endo Finisher بالمقارنة مع انظمة الارواء بالتردد الصوتي والتردد فوق الصوتي : دراسة خارج الجسم == Cleaning Efficiency of Xp - Endo Finisher File In Comparison With Sonic And Ultrasonic Irrigation Systems (An In Vitro Study)

Author name: مهند غازي عزاوي
Supervisor name: جمال عزيز مهدي
General topic: Dentistry
Specific topic: Dental Treatment
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: This in vitro study was conducted to evaluate and compare the efficiency of XP - endo Finisher, EndoActivator sonic irrigation system and the NSK Varios ultrasonic irrigation system in removing dentin debris at three levels of root canals and to compare the percentage of dentin debris among the three levels for each irrigation system. Sixty freshly extracted upper molar teeth with straight palatal root canals were used in this study. All canals were prepared with ProTaper NEXT rotary files to size X4, 1mm from the anatomic apex with irrigation of 1 ml 2.0% NaOCl between the files. After that the samples were randomly distributed into three groups of twenty samples each, irrigated with 1 ml 2.0% NaOCl, followed by irrigant activation for 60 seconds with three different irrigation systems; group one, by using the XP - endo Finisher; group two, by sonic irrigation using the EndoActivator system; and group three, by ultrasonic irrigation using the NSK Varios, then all the groups received a final rinse of 5 ml 2.0% NaOCl. After the final rinse, the roots were split longitudinally into two parts and photographed with a professional digital camera. The digital images were then transferred into a computer and opened in Adobe Photoshop CC 2015 software and the canal was magnified 200x. The percentage of dentin debris remaining at the apical level (0 - 3mm), the middle level (3 - 6mm) and the coronal level (6 - 9mm) was calculated by dividing the number of pixels occupied by the dentin debris at each level by the number of pixels representing the entire canal area. Data were analyzed statistically by ANOVA and LSD at 1% and 5% significant levels. This study showed that cleaning the canal with the XP - endo Finisher or NSK Varios ultrasonic irrigation system resulted in significantly cleaner canals (P<0.01) than the EndoActivator sonic activation system at all canal levels. The XP - endo Finisher resulted in cleaner canals than the NSK Varios ultrasonic irrigation system at all levels, but the difference is not statistically significant (P>0.05). The apical level of all the canals showed a greater amount of dentin debris (P<0.01) compared to the middle and coronal levels, regardless of the irrigation device used.

تحليل القوى المستقرة لثلاثة انواع مختلفة من المواد الراتنجية بطريقة عملية وعددية == Static Stress Analysis For Three Different Types of Composite Materials Experimentally And Numerically

Author name: محمد وائل سعيد
Supervisor name: حكمت عبد الرحيم الغراوي
General topic: Dentistry
Specific topic: Dental Treatment
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: t is important to analyze and compare the stresses induced in different composite material types during load application to know which type of composite will behave as preferred under the loading in the same circumstances. This study aimed at measuring and comparing the stress induced in Filtek ™ Z350 XT (3M ESPE) composite, Tetric EvoCeram ® (ivoclar vivadent) composite and BRILLIANT ™ NG (Coltène/Whaledent) composite experimentally and numerically.Experimental analysis included cavity preparation in the Brass block with a concave (U - shape) cavity which represent a proximal cavity preparation. This cavity was used as a mold for sample preparation. The internal line and point angles of the cavity (mold) were rounded and the dimensions of the cavity (mold) were 10mm × 10mm × 10mm (Total height of the box × Width of the top side of box × Length of the top side of box). The internal diameter of “U” was 5 mm at the base of the box. The mold was used to prepare forty five samples, fifteen samples for each type of composite material. So, three groups were prepared : Group A filled with Filtek ™ Z350 XT composite material, Group B filled with Tetric EvoCeram ® composite material and Group C filled with BRILLIANT ™ NG composite material.Electrical strain gauge (Tokyo Sokki, Japan) was embedded in composite material horizontally at the same level in each sample. Static load of 50 N was applied perpendicular to the center of the occlusal surface of composite restoration in each sample testing. The strain gauge was connected to a Wheatstone bridge with a signal amplifier which measures the strain during load application and gives the amplified signal from (0 to 4.8 volt) to LabJack data acquisition where a stream software give the final values of strain with the aid of a scaled equation of voltage. Then, the von Mises stress (effective stress) was calculated by using equations. Numerical analysis was done by using ANSYS 16.1 - (2015) (finite element tool) software that was used to create the 3 - Dimensional models represented the same materials and dimensions used experimentally. The physical characteristics of the composite models were inserted in the software which included Elastic modulus and Poisson’s ratio (?). Analysis was selected in a finite element method according to boundary conditions. A mesh size and an element size were estimated during the study. The stresses were calculated at static load of 50 N with the ANSYS 16.1 - (2015) software.The data were analyzed statistically by One - way ANOVA test and Least Significant Difference (LSD) test. One - way ANOVA test and LSD test results showed that there was a highly significant difference (P<0.001) presented between groups A and B, groups A and C and between groups B and group C. The Stress induced in BRILLIANT ™ NG composite after load application was the lowest stress value followed by Tetric EvoCeram ® composite and followed by Filtek ™ Z350 XT composite which was the highest stress value experimentally and numerically.
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