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اداء الحماية الكاثودية لخطوط الانابيب == Performance of Cathodic Protection For Pipe Lines

اسم المؤلف: انس ثائر علي
اسم المشرف: نصير عبود عيسى الحبوبي
الموضوع العام: الهندسة الكيمياوية
السنة: 2014
الموضوع الدقيق: الهندسة الكيمياوية
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الكيمياوية
اللغة: الانكليزية
النص الكامل من المصدر: https://nahrainuniv.edu.iq/sites/default/files/ANAS%20THESIS%20.pdf
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: ان تاكل الهياكل المعدنية المدفونة في التربة والتي على اتصال مع التربة لفترة طويلة تعتبر مشكلة هندسية واقتصادية كبيرة.في جميع انحاء العالم هنالك الكثير من انابيب النفط والغاز والماء وكابلات الاتصالات وكذلك صهاريج التخزين والمباني والاسسات والعديد من الهيا | The corrosion of metallic structures buried in soils or in contact with soils has long been a serious engineering and economic problem. All over the world millions of kilometers of gas, water, oil pipelines, communication cables, power cables as well as storage tanks, buildings foundations, and many other structures are buried in the soil, suffering from soil corrosion problems which affect mainly the external surfaces of these structures. In many countries pipelines are by far the most important means of hydrocarbon transportation. This applies to the transport of crude, finished products and natural gas.It is an international problem with more structures and materials buried in the soil. The truly international scope of interest of this subject can be seen by the amount of literature and researches in this field. Attempts have been made to overcome this problem by the use of various types of techniques. The most common and applicable technique is cathodic protection.In this research a carbon steel pipe of length 100 cm buried in a wooden box submerged by soil and impressed current cathodic protection system (ICCP).was applied using power supply and electrical closed circuit, several important factors affecting the pipe protection from corrosion has been studied, like Anode position (distance and depth), soil resistivity (wet and dry), condition the pipe (coated and un - coated), distribution of potential and currents along the pipe(cathode) and the amount of current required to achieve cathodic protection.A correlation was achieved to simulate the ranges of parameters and factors affecting Impressed Current Cathodic Protection. Regression of this model to data and results yielded parameter values vary depending on the effect of the same factor.

تصميم وتنفيذ نظام لاسلكي لمراقبة درجة الحرارة باستخدام الزيجبي ZigBee == Design And Implementation of A Wireless Temperature Monitoring System Using Zigbee

اسم المؤلف: علي حمید توفیق محسن
الموضوع العام: هندسة الحاسبات
السنة: 2014
الموضوع الدقيق: هندسة الحاسبات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم هندسة الحاسوب
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: شبكة الاستشعار اللاسلكية (WSN) ھي عبارة عن مجموعة من العقد يتم تنظيمھا في شبكة تعاونية. لدى كل عقدة في تلك الشبكة قدرة على المعالجة، وتحتوي على ذاكرة، ولديھا جھاز ارسال واستقبال لاسلكي، ولديھا مصدر للطاقة، وتستوعب مختلف اجھزة الاستشعار والمحركات. النظام | A wireless sensor network (WSN) is a collection of nodes organized into a cooperative network. Each node consists of processing capability, memory, RF transceiver, power source, and accommodates various sensors and actuators. The proposed system in this

استخراج الطرق اعتمادا على تقنية الافاعي المنطادية == Road Extraction Based on Balloon Snakes Technique

اسم المؤلف: فراس فاهم عبد الحسن الصكبان
اسم المشرف: محمد احمد المشهداني
الموضوع العام: هندسة الحاسبات
السنة: 2008
الموضوع الدقيق: هندسة الحاسبات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم هندسة الحاسوب
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: ان استخراج الطرق من الصور الجوية وصور الاقمار الصناعية يؤدي دورا مهما في رسم الخرائط وتخطيط يحتاج الى تحديث سريع للطرق (GIS) شبكات الطرق الجديدة. ان التطور الحالي في نظام المعلومات الجغرافية في كل ارجاء الكوكب.خلال العقود الاخيرة طورت الكثير من الطرق الا | The extraction of roads from aerial and satellite images is an important task within cartography and planning of new road networks. The recent developments of the Geographic Information System (GIS) require rapid updates of roads all over the planet. Over

تصميم وتنفيذ ذراع انسان الي لحركة الانسان == Design And Impelementation of Robotic Manipulator For Human Movements

اسم المؤلف: احمد فاضل شنته
اسم المشرف: Mohammed Zeki AL | Faiz
الموضوع العام: هندسة الحاسبات
السنة: 2014
الموضوع الدقيق: هندسة الحاسبات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم هندسة الحاسوب
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Most human interactions with the environment depend on our ability to navigate freely and to use our hands and arms to manipulate objects. An ideal interface for Humanoid Robotic Operation (HRO) will be person - independent, inexpensive, easy to use, requ

تجزئة الحزمة لالغاء الضوضاء المتكيف في تنقية الاشارة الكلامية == Subband Decomposition For Adaptive Noise Cancellation In Speech Enhancement

اسم المؤلف: حوراء فاضل عبيد
اسم المشرف: منال جميل الكندي
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2014
الموضوع الدقيق: هندسة الالكترونيك والاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Nowadays speech processing methods are usually implemented in the time or frequency domain. Filter bank can be considered as a divide and conquer approach within signal processing, since large problems are sub - divided into many smaller problems. While filter banks are essential components of speech processing, and in signal processing in general, they will have the focus in present days. An adaptive filter is a filter that self adjusts its transfer function according to its optimizing algorithms. Least mean square algorithm has slow convergence when used with nonstationary signals like speech and it has high computational cost but normalization of step size (or input signal) leads to a useful variant of the LMS algorithm known as the normalized LMS (NLMS) algorithm, which gives better convergence characteristics than the LMS because it uses a variable step - size with respect to the input signal power.To improve the convergence rate and/or computational complexity and also to overcome the disadvantage of a full band adaptive filtering, a structure is illustrated that is subband adaptive filtering; this will converge faster at a lower computational cost for speech and white noise inputs.This research shows most types of subband decomposition structures and makes comparison among them based on their performance to cancel the noise with minimum computational complexity, maximum convergence speed and maximum noise cancellation with lowest delay.Moreover three new hybrid tree configurations or the tree decom - position are proposed to maximize the overall performance of adaptive noisecancellation system.They are given the abbreviations HTPSAF1,HTPSAF2 and HTPSAF3. These three systems use polyphase filter bank that has showed a noticeable increase in the convergence speed and large reduction in the computational complexity due to the lower number of coefficients that can be achieved for the analysis/synthesis filters, which in turn will result in minimum delay in the reconstructed output speech signal.The algorithm of subband decomposition structures has been described theoretically then modeled under MATLAB simulation program using built - in filters and real input signals.

التشوه بالتوافقيات في اشارات التدفق للمتحسس السعوي الحيزي المثبت خارجيا == Harmonic Distortion In The Flow Signals of Externally Mounted Capacitive Spatial Filter

اسم المؤلف: مروه مالك حسوني
اسم المشرف: عباس احمد الشالجي
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2014
الموضوع الدقيق: هندسة الالكترونيك والاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: This thesis investigates the performance of some windows on the flow signals that are generated from the planar capacitance spatial filter (PCSF) according to the moving of the solid particle in the channel of the filter. The sensor that operates as non - invasive device for solid flow measurement utilizes the thin wall of a dielectric pipe section as a shielding layer to protect the sensor from erosion, rust and moisture, and to make it more versatile.The finite - difference model equations are solved using successive over relaxation (SOR) methods. The waveforms show that the response of the PCSF is spatially - biased towards particle flowing closer to the plane of sensing electrodes and that the resulting flow signal is non - sinusoidal. The SOR method that is used to compute the PCSF potential fields has been investigated using a mesh of 110 by 32 nodes, and the algorithm was programmed in MATLAB (Release 2013a) using an Intel core ™ i3 PC,CPU processor.To study the effect of the total harmonic distortion (THD) content on the flow signals that are calculated with respect to the fundamental frequency of the power spectrum density through a specific quantitative criterion, this work comprises a comparative study among three types of windows; Hanning, Hamming, and a subOptimal window called the Kaiser window.The effect of particle flying heights, relative permittivity and size on the THD of the flow signal were examined. It was found that theTHD of flow signals at heights closer to the plane of sensing electrodes is high and decreasing gradualy when the particle flying height is far above the sensor. All the three windows used in this work have better suppression of harmonics distortion as compared with unwindowed (raw) flow signal.

تحليل الاتصال بين القمر الصناعي والطائرة باستخدام نموذج تعقب الشعاع == Analysis of Satellite - To - Aircraft Communications Using Ray Tracing Model

اسم المؤلف: علي محمد علي
اسم المشرف: جابر سلمان عزيز
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2008
الموضوع الدقيق: هندسة الاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: While the aircraft flying above the earth surface, the signal transmitted from the satellite to the aircraft suffered from changes in it's characteristics at the aircraft receiver's antenna according to many factors affecting the direct and reflected power from the earth surface such as the distance difference, the nature of the earth surface, elevation angle, Doppler shift, etc… This Thesis introduces a proposed algorithm to analyze and simulate the communication link between the Satellite and the aircraft taking into account all the parameters that affect the magnitude of the power and signal characteristics received at the aircraft antenna. The proposed method uses the ray - tracing technique in this simulation to analyze the communication link between the Satellite and aircraft. The simulation developed in this thesis has minimized the error percentage as much as possible taking into account most of the factors that might affect the characteristics of the signal received by the aircraft from the satellite. This simulation considers the free space loss, specular reflection losses, scattering factor, earth curvature effect, etc…,also the simulation takes into account the Doppler effect that caused by the aircraft movements. The simulation measures the received signal strength and fading characteristics of satellite to aircraft communication to determine the effectiveness of communication and to establish parameters which can be useful to the communication system designer in Iraq and the rest of the world. MATLAB® v6.5 used in the simulation as application software, the simulation also applied to MATLAB® v7.0.

تحليل المسار النازل لنظام الاتصال اللاسلكي التكيفي المتعدد المداخل والمخارج والمستخدمين == Analysis of Adaptive Downlink Multiuser Mimo Wireless Communication System

اسم المؤلف: عمر جبار ابراهیم
اسم المشرف: رعد سامي فياض
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2014
الموضوع الدقيق: هندسة الاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Multiple - input multiple - output (MIMO) wireless communication systems have received significant attention due to their enormous channel capacity potential in rich scattering environment. Such systems need to consider multiuser transmission / reception in their design. This thesis investigates theoretically the ergodic capacity of multiuser MIMO systems operating with adaptive techniques to enhance their performance. The ergodic capacity of multiuser MIMO system is analyzed and simulated for three types of channels : additive white Gaussian noise (AWGN) channel, uncorrelated Rayleigh fading (URF) channel, and semicorrelated Rayleigh fading (SRF) channel. The downlink SRF channel for each user is modeled by assuming that the fading is correlated at the transmitter but uncorrelated at the receiver side. The simulation results are compared to those related to a single - user system and used as a guideline to present an adaptivetechnique to enhance the capacity of MIMO system operating in SRF channel. The adaptive technique is based on a tradeoff between time division multiple access (TDMA) and block diagonalization (BD).Simulation results are presented using MATLAB environment to address the dependence of ergodic capacity of a MIMO communication on various system and channel parameters. The results indicate clearly that the threshold level of angle between users ? employed in the adaptive system must be chosen carefully to maximize the ergodic capacity. The optimum threshold ?th is equal to 24°, 42° and 47°, for angle spread ? = 5°, 50° and 75°, respectively

محاكاة GSM/EDGE وGSM لنظام الاتصالات المتنقلة == Simulation of GSM And GSM/EDGE Mobile Communication Systems

اسم المؤلف: اسامة علي عبد الله
اسم المشرف: رعد سامي فياض
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2014
الموضوع الدقيق: هندسة الاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The introduction of global system for mobile communication (GSM) air interface has undoubtedly created a new area in telecommunications. In view of its extensive use in real world applications, it is highly desirable to further investigate the performance of the GSM system under different operating conditions and environments. Furthermore, there is increasing interest in using high - level modulation to provide enhanced data rate for GSM evolution (EDGE).This thesis investigates the performance of both GSM and GSM/EDGE systems operating in Raleigh fading channel. The results are reported for different models of fading channel in order to describe various environments. A detailed SIMULINK model is developed in MATLAB environment to simulate the GSM system. Furthermore, a MATLAB software package is developed to simulate extensively the EDGE system. Both simulation models are handled to characterize each essential part in these systems. The simulation takes into account channel coding, modulation type, interleaving and burst building, multipath channel effect, channel estimation, and detection process.The simulation results indicate clearly that to achieve a bit error rate (BER) of 1x10P - 5 P in additive white Gaussian noise (AWGN) channel, the signal - to - noise (SNR) ratio should be 5.25, 3.75 and 12.25 dB when GSM, MCS - 1 EDGE (GMSK modulation), and MCS - 7 EDGE (3?/8 - 8PSK modulation) systems are used , respectively. These values are to be compared with R12R.43, R1R0.21 and R2R1.05 dB, respectively, for HT100 - type fading channel. The MSC - 1 system offers the best BER characteristics followed by GSM system. The MCS - 7 offers the worst BER characteristics among the three systems.

تاثير اللاخطية في الالياف البصرية على اداء نظام تجميع الاطوال الموجية الضوئية المنقسمة باستخدام تقنية الاستقطاب المزدوج لتقسيمات التردد المتعامد الضوئي == Effect of Fiber Nonlinearity On The Performance of WDM Optical Systems Using Dual Polarization CO - OFDM Technique

اسم المؤلف: بشار مظفر احمد
اسم المشرف: رعد سامي فياض
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2014
الموضوع الدقيق: هندسة الالكترونيك والاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The implemented existing high capacity optical networks are based on 50 GHz wavelength - division multiplexing (WDM) channel spacing and carry up to 50 Gb/s data rate per channel. In recent years, there is increasing interest in using dual - polarization (DP) technique to enable future systems with at least 100 Gb/s rate per channel to operate over existing optical networks. The performance of these advanced systems can be enhanced further by using coherent optical orthogonal frequency division multiplexing (CO - OFDM) technique which offers high spectral efficiency and outstanding tolerance of fiber dispersion.This thesis addresses the effect of fiber nonlinear optics on the performance of dual polarization CO - OFDM/WDM system operating with 100 Gb/s per channel. Different modulation formats, namely BPSK, QPSK and 16 - QAM, are used. First, the performance of a single - channel system is investigated in the absence and presence of fiber nonlinearity. The results are compared with those of a conventional (single - polarization) system to identify the key role played by the DP technique. The investigation is then extended to WDM systems incorporating DP - OFDM technique. The results reveal that the effect of fiber nonlinearity can be reduced or cancelled by using optimum transmitter laser power Popt. Further, the value of Popt is a function of transmission distance,number of multiplexed channels, and modulation formats. Popt of - 11, - 12, and - 5 dBm is needed for a ten - channel DP system operating with BPSK, QPSK, and 16 - QAM formats, respectively.Simulation results presented in this thesis are obtained using OptiSystem (version 11.1) which is a commercial software package.

الغاء تداخل المسا ارت التخميني في انظمة الوصول المتعدد باستخدام تقسيم الترميز الواسع الطيف لشبكات الاتصال اللاسلكية == Multipath Interference Cancellation Investigation In Wcdma Communication Networks

اسم المؤلف: نور محمد خليل
اسم المشرف: منال جميل الكندي
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2014
الموضوع الدقيق: هندسة الالكترونيك والاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Bit Error Rate (BER) and Bit Energy to Noise Ratio(?????????) performance of the 1 - D RAKE receiver without , with Space Time Transmit Diversity (STTD) and 2 - D RAKE without , with (STTD) and also without and with beamforming for WCDMA over RayleighChannel in presence of Additive White Gaussian Noise (AWGN) channel is demonstrated with purpose of making simulation of m - files developed in Matlab.Results are evaluated in terms of BER and ????????? considering the number of Base Station (BS) transmit antennas (1 - D RAKE and 2 - D RAKE receivers), and the number of RAKE fingers (1 - D RAKE receiver) and the number of Mobile Station (MS) receive antennas (2 - DRAKE receiver). The performance results of 1 - D RAKE and 2 - D RAKE receivers showed that the receivers have satisfactory BER performance and the performance of RAKE receivers is more improved by increasing the number of RAKE fingers, performance is even better when beamforming was applied.The performance results of the three receive diversity of 2 - D RAKE receiver schemes : Selection Combining (SC), Equal Gain Combining (EGC) or Maximal Ratio Combining (MRC)) of 2 - D RAKE showed that there are significant improvements in BER and ?????????performance over the 1 - D RAKE. BER of 10???? can be obtained at ????????? ? 5 dB performance with four fingers of 2 - D RAKE receiver with STTD and beamforming and MRC scheme for five receive antenna elements.

تحسين جودة الصورة التوموغرافية المعاد تركيبها باستخدام خوارزمية التسقيط العكسي المرشحة == Enhancement of Tomographic Image Quality Reconstructed By Filter Backprojection Technique

اسم المؤلف: دعاء نوفل حازم
اسم المشرف: محمد حسين الحياني
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2014
الموضوع الدقيق: هندسة الالكترونيك والاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Computed tomography refers to the imaging of slices of an object by exposing them to X - ray in different directions. Measurement of image quality is one of great importance in the field of medical applications. In applications such as CT and MRI scanning, most of the time the quality of reconstructed image is assessed qualitatively by radiologist or domain experts which are purely subjective evaluation.The FBP algorithm produces excellent quality and high performance reconstruction compared with other reconstruction algorithms. This thesis presents different projection types (fan beam geometry, and cone beam geometry) for the image reconstruction, the geometries are calculated analytically by specified 2D head phantom for fan beam and 3D head phantom for single slice spiral cone beam geometry with different ranges covering angle.In the thesis the FBP algorithm was applied with the fan beam and single slice geometries. Different types of filters (Hann, Hamming, Kaiser, Cosine, Ram - Lak, and Gaussian) are used in the algorithm and a new window filter is proposed in the algorithm. Comparisons are made between the new window and different common windows by quality measurement to get a reconstructed image with high quality and high performance suitable for the implementation of the FBP.A computer programs has been designed, written, and implemented in this work using MATLAB 7.1, for fan beam and single slice projections. Good results of quality and performance were obtained for the tomographic reconstructed image from its projection on CT scanner.

محاكاة تضمين تقسيم التردد المتعامد المتعدد المستخدمين المشفر في الخط النازل == Simulation of Coded Multiuser Ofdm Downlink

اسم المؤلف: دﻧﻴﺎ ﻓﺆاد فاروق النعيمي
اسم المشرف: رعد سامي فياض
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2008
الموضوع الدقيق: هندسة الاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The orthogonal frequency division multiple access (OFDMA) scheme adopts orthogonal frequency division multiplexing (OFDM) subcarriers, which are particularly suited for transmition over broadband frequency selection channels, to support multiusers. The scheme considered usually assigns a subset of subcarriers to each user and adopted adaptive techniques for the allocation of available resources/subcarriers according to the channel state information (CSI) estimated at the transmitter using a reverse link. This thesis proposed three coded multiuser OFDM schemes based on spreading the data of each user over all subcarriers without CSI at the transmitter. The idea behind these schemes is to split the OFDM transceiver into two stages : one common to all users while the other consists of identical parallel units with each unit is used to process the data related to an individual user. The two stages are separated by a multiplexer/demultiplexer unit whose position can be chosen to yield different schemes. The three schemes considered here are : user multiplexed scheme, inner coded multiplexing scheme, and mapper multiplexing scheme. The proposed schemes implemented are using MATLAB simulink (version 7) to investigate their performance under different operating conditions related to number of users, Rayleigh fading channel, and serial concatenated codes. The results are compared with those related to two conventional schemes, subcarrier mapping scheme and outer coded multiplexing scheme. The simulation results indicate that the proposed user multiplexing scheme may offer performance as high as that offered by the conventional outer coded multiplexing scheme but with reduced number of equipments.

تهيئة حاسوبية لموجه سيسكو == Computer Based Configuration For Cisco Routers

اسم المؤلف: فارتان رافي كريكوريان
اسم المشرف: غسان حميد عبد المجيد
الموضوع العام: هندسة الكهرباء والالكترون والاتصالات
السنة: 2008
الموضوع الدقيق: هندسة الاتصالات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية الهندسة - قسم الهندسة الالكترونية والاتصالات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Routers are intelligent devices that make connection between different networks possible. In addition, routers can perform several functions, including filtration and selection of the best path of packets movement. Routers must be configured efficiently in order to perform the above functions. In literature, two approaches have been distinguished for the configuration, namely; text mode and graphical mode approach. The present work is analyzing these two approaches and defines precisely their advantages and limitations. As a result of this analysis, a new approach is proposed in this thesis which eliminates the limitations. The work proposes a graphical interface which is executed on a desktop (or laptop) PC. The user defines the configuration parameters through a program which transfers these parameters to the router by console port instead of Ethernet port. These parameters are then saved on Non Volatile Random Access Memory. The proposed graphical interface is implemented by standard lab consisted of two routers. The implementation shows that the time of configuration can be reduced to 70% of the text mode approach, and overcome the trouble of the old graphical interface.

تشفير الصوت الحصصي باستخدام تحويل الجيب تمام المنقطع == Share Audio Cryptography Using DCT Transform

اسم المؤلف: سارة سعد علي البغدادي
اسم المشرف: عبير متي يوسف
الموضوع العام: علوم الحاسبات
السنة: 2014
الموضوع الدقيق: علوم الحاسبات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية العلوم - قسم علوم الحاسوب
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: الحماية الفعالة والامنة للمعلومات الحساسة هو مصدر القلق الاساسي في نظم الاتصالات او انظمة التخزين الشبكي، فمن المهم لاي معالجه معلومات هو ضمان عدم العبث بالبيانات.و لتحقيق السرية وسلامة المعلومات والوسائط المتعددة، تم وضع عدة مخططات الحصص السرية المختلفه | An Effective and secure protection of sensitive information is the primary concern in communication systems or network storage systems, it is important for any information process to ensure data is not being tampered. To achieve confidentiality and integr

طريقة تقريبية لحل مسائل التغاير ذات الرتب الكسرية باستخدام مويجات هار == Approximation Method For Solving Fractional Order Variational Problems Using Haar Wavelet

اسم المؤلف: زيد عامر محمد
اسم المشرف: اسامة حميد محمد | فاضل صبحي فاضل
الموضوع العام: علوم الرياضيات
السنة: 2014
الموضوع الدقيق: الرياضيات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية العلوم - قسم الرياضيات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: في هذه الرسالة, سوف نستخدم اسلوب واضح لحل مسائل التغاير ذات الرتب الكسرية وذلك باستخدام تقنية مويجات هار. المشتقة الكسرية سوف تكون من نوع ريمان - ليوفيلي.الغرض الرئيسي لهذه الرسالة يتمحور حول هدفين : الهدف الاول هو دراسة مسائل التغاير الكسرية البسيطة ذات | In this thesis, we present a clear procedure of solutions for the fractional variational problems via Haar wavelet technique. The fractional derivative is defined in the Riemann - Liouville sense.The main theme of this thesis is oriented about two objects

تقريب المعدل والتباين للمخمنات المرتبطة بتوزيع كاما == Approximation To The Mean And Variance of The Estimators Related To Gamma Distribution

اسم المؤلف: يمامه نذير محمود
اسم المشرف: اكرم محمد العبود | علاء الدين نوري احمد
الموضوع العام: علوم الرياضيات
السنة: 2014
الموضوع الدقيق: الرياضيات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية العلوم - قسم الرياضيات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: في هذه الرسالة تطرقنا الى توزيع كاما لاهميته في تطبيقات الاختبارات الحياتيه وبحوث البقاء والتي تظهر في الدراسات الطبيه للامراض المزمنه وحياه المركبات الصناعيه.تقريب لمعدل وتباين مخمنات طريقة العزوم اشتقت نظريا باستخدام مفكوك تايلر مقرب لغايه المشتقة الج | In this thesis, we study the gamma distribution because it has many applications in life - testing, survival and reliability investigation that appear in medical studies of chronic diseases and industrial life - testing. Approximation to the mean and vari

الحلول التقريبية للمعادلات التفاضلية التباطؤية ذات الرتب الكسرية == Approximate Solutions For Delay Differential Equations of Fractional Order

اسم المؤلف: عباس ابراهيم خليف
اسم المشرف: اسامة حميد محمد
الموضوع العام: علوم الرياضيات
السنة: 2014
الموضوع الدقيق: الرياضيات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية العلوم - قسم الرياضيات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The main theme of this thesis is oriented about two objects : The first objective is to find the approximate solution of delay differential equations of fractional order using Adomian decomposition method. The second objective is to find the approximate s

حلول تحليلية وتقريبية لمعادلاث فولتيرا التفاضلية التكاهلية وتطبيقاتها == Analytical And Approximate Solutions For Volterra Integro - Differential Equations And It’s Applications

اسم المؤلف: فراس شاكر احمد
اسم المشرف: مجيد احمد ولي | فاضل صبحي فاضل
الموضوع العام: علوم الرياضيات
السنة: 2014
الموضوع الدقيق: الرياضيات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية العلوم - قسم الرياضيات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The main objective of this thesis is to study and solve the Volterra integral and integro - differential equation and some scientific models for real life problems.This objective may be divided into three sub objectives, as follows : The first one is to

حل مسائل الشبكة الضبابية باستخدام الطرق الاحصائية == Solution of Fuzzy Network Problems Using Statistical Methods

اسم المؤلف: سنار مازن یونس
اسم المشرف: علاء الدين نوري احمد | اكرم محمد العبود
الموضوع العام: علوم الرياضيات
السنة: 2014
الموضوع الدقيق: الرياضيات
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية العلوم - قسم الرياضيات
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: في ھذه الرسالة تم تطوير ثلاثة طرق تتضمن تحويل المسالة الضبابية للحصول على المسار الحرج الذي يمثل ( deterministic ) الى مسالة محددة المعالم وقت الانجازالامثل لمختلف مسائل الشبكة الضباية من خلال تحويل معاملات ومتغيرات الى مسائل النمذجة الغير ضبابية الخطية ( | This thesis developed three defuzzification approaches to convert the coefficients and the variables of the fuzzy linear programming problems (FLPP) into crisp (deterministic) linear programming problems (CLPP) and obtain the critical path with the optima

التقديرات الطيفية للمركبات الاحادية والمتعددة للادوية == Spectrophotometric Determination For Single And Multi Components of Drugs

اسم المؤلف: مروه صباح يونس
اسم المشرف: خالدة حميد محمد السعيدي
الموضوع العام: علوم الكيمياء
السنة: 2014
الموضوع الدقيق: الكيمياء
الدرجة: ماجستير
الجامعة: جامعة النهرين - كلية العلوم - قسم الكيمياء
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يتضمن هذا البحث تحضير مشتقات جديدة لنوعين من قواعد شف هما نوع وكذلك [XI]a - d والبايارازولون [X]a - d ومشتقات البايارازول، [XIII]a - d و[XII]a - d ونوع جميعها تحتوي على وحدةالايزوكزولين او البيرمدين باستعمال الجالكون [VII]a - d الكوينولين - مادة اساسية. | The work involves synthesis of new two types from Schiff bases ([IV]a - f , [V]a - f and [XII]a - d, [XIII]a - d), pyrazoles[X]a - d, pyrazolones[XI]a - d and quinolones [VII]a - d derivatives containing isoxazoline or pyrimidine unit starting with chalcones. 4 - Bromoacetophenone was reacted with 4 - hydroxybenzaldehyde, 4 - hydroxyacetophenone was reacted with 4 - bromobenzaldehyde and 3 - Aminoacetophenone was reacted with 4 - bromobenzaldehyde or 4 - N,N - dimethyl aminobenzaldehyde in basic medium to give four chalcone compounds by Claisen - Schemidt reaction. The chalcons [I]a - d was reacted with hydroxylamine hydrochloride to form isoxazolines [II]a - d, while, the chalcones type [I]c,d was reacted with thiourea to give pyrimidine - 2 - thiones [III]a,b in basic medium. The pyrimidine - 2 - thiones [III]a,b and isoxazolines [II]c,d reacted with 4 - or 3 - substituted benzaldehyde and coumarin to form Schiff bases[IV]a - f [V]a - f and quinoline derivatives[VII]a - d, respectively. On the other hand, compounds[II]a,b or [V]b,f were reacted with ethylchloroacetate in basic medium to get new ester compounds[VIII]a - d.The condensation of new ester[VIII]a - dwith hydrazine hydrate led to produce new acid hydrazide [IX]a - d. The later compound refluxed with 4 - substituted benzaldehyde in ethanol to give Schiff bases( [XII]a - d and [XIII]a - d) ,while the reaction of these acid hydrazides [IX]a - d with acetyl acetone and ethyl aceto acetate led to form pyrazoles[X]a - d and pyrazolones[XI]a - d,respectively. The synthesized compounds were characterized by melting points, C.H.N. analysis, FTIR, Mass and 1HNMR spectroscopy(of some of them). Some of the synthesized compounds have been screened for their antibacterial activities using two types of bacteria; E. Coli and Staph. Aureus. All the examined compounds did not show any biological activity towards E. Coli but some of them show activity towards Staph. Aureus.This work can be summarized by the following schemes :

مقارنة نسب الحمل للنساء اللواتي يعانين من توقف الطمث لاسباب ثانويه بعد استعمال ادوية المنشطه للحويصلات المبيضيه باستخدام التمنيه داخل الرحم والطريقه الطبيعيه للحمل == Comparison of Pregnancy Rate Between Intrauterine Insemination And Spontaneous Pregnancy After Ovulation Induction In Women With Secondary Amenorrhea

اسم المؤلف: سوسن كاظم عبد الامير
اسم المشرف: محمد باقر محمد رشاد فخر الدين
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
الجامعة: جامعة النهرين - المعهد العالي لتشخيص العقم والتقنيات المساعدة على الانجاب
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: انقطاع الطمث لاسباب ثانوية هو انعدام الدوره الشهريه لمدة ثلاثة الى ستة اشهر للنساء اللواتي لهن دوره شهريه منتظمة.واستنادا لمنظمة الصحة العالمية ان انقطاع الطمث يتضمن مجموعة (WHOI) و(WHOII) والتي تكون (30%) من حالات العقم.وتعاني اكثر النساء ممن يكونون من م | Secondary amenorrhea refers to the lack of cycle for three months in a row or for more than six months in a woman who has had regular menstrual periods before, and its associated with conditions classified as World Health Organization (WHO) group 1 and WHO group 2 and has been estimated to represent almost (30%) of all causes of infertility. In clinical practice, WHO group 2 subjects present much more frequently than WHO group 1 subjects and they appear to be much harder to treat successfully. Among women classified as WHO group 2, those diagnosed with polycystic ovary syndrome (PCOS) constitute the largest group (60 - 85% of cases). These women account for most cases with oligomenorrhea (90%) and represent about (30%) of those with amenorrhea.ObjectiveThe aim of this study was to find out the pregnancy rate following intrauterine insemination (IUI) in women complaining of secondary amenorrhea after induction of ovulation and compare it with those achieve pregnancy by natural way.Material and MethodsSeventy five females with secondary amenorrhea were involved in this study, there ages were ranged between (?30, 30 - 39, ?40) years old with infertility duration ranged between (?2, 3 - 4, 5 - 6, 7 - 8, ?9) years. History and medical examination were done for all women, with tubal patency assessment by HSG or laparoscopy.By cycle day two, hormonal assay (S.FSH, S.LH, S.E2, S.Prolactin and S.Testosterone) were done for all females in addition to ultrasonography to exclude any ovarian pathology.Ovulation induction program was applied for all females which include either clomiphene citrate (CC) alone, recombinant Follicular Stimulating Hormone (r - FSH) alone or combined CC and r - FSH. Vaginal ultrasonography was done for all females on day 12 or13 to assess ovarian response (size and number of mature follicles) and endometrial thickness. Meantime all male partners undergo seminal analysis to assess sperm parameters (sperm concentration, sperm motility and morphology).Thirty eight of females participated for natural pregnancy and thirty seven of females participate for IUI. Washing swim up technique was used for sperm activation for all male partner involved in IUI group.Follow up of all these females for pregnancy test to assess the pregnancy rate for both groups (natural and IUI).ResultsThe pregnancy rate achieved by natural way for a women with secondary amenorrhea is (23.7%), and (18.92%) by IUI way.In this study, it was found that female age, infertility duration, hormonal balance and ovulation induction program affect the pregnancy outcome where the young age group and short infertility duration correlate positively with pregnancy rate. Furthermore, early diagnosis of underlying causes of secondary amenorrhea to achieve hormonal balance by suitable ovulation induction program, have an effect on pregnancy rate, were combined CC and r - FSH produce a significant result among females achieve pregnancy by natural way (13.5%) compared with other ways. While ovulation induction by r - FSH drugs produce a significant results (13.5%) among females achieve pregnancy by IUI way.ConclusionFrom results of this study, it was concluded that young female age, short infertility duration, early diagnosis of underlying causes of secondary amenorrhea and the use of r - FSH drugs for ovulation induction produce a high significant pregnancy rate using IUI program.

دراسة مقارنة بين تاثير سترات الكلوميفين وسترات التاموكسيفين على بعض معايير نطف الفئران == Comparative Study On The Effects of Clomiphene Citrate And Tamoxiphene Citrate On Some Sperm Parameters In Mice

اسم المؤلف: رائد عبد الاله عباس
اسم المشرف: محمد باقر محمد رشاد فخر الدين | محمد عوده سلمان
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الحيوان - الاجنة
الدرجة: ماجستير
الجامعة: جامعة النهرين - المعهد العالي لتشخيص العقم والتقنيات المساعدة على الانجاب
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يعد العقم واحدة من المشاكل الاجتماعية المهمة في معظم انحاء العالم.استنادا الى الاحصائيات الحالية حوالي 15% من المتزوجين يواجهون العقم. يؤدي تقييم السائل المنوي غير الطبيعي للاستروجينات الى تشخيص قلة اعداد النطف ونشاطها وشكلها الطبيعي ومن ناحية اخرى تؤثر | Infertility is one of the most critical social problems in the all of population world. According to the current statistics, about 15% of married couples face with infertility. Assessment of abnormal semen parameters leads to diagnosis of oligoasthenoteratozoospermia, and in others, it leads to isolated abnormalities of sperm concentration, motility, and morphology, due to the lack of differentiable or correctable etiology, Both clomiphene citrate and tamoxiphene citrate, as an anti - estrogen, is the most common prescribed medication for male infertility. In humans, ant estrogens interfere with the normal negative feedback of sex steroids at the hypothalamus and pituitary, thereby increasing endogenous gonadotropin releasing hormone (GnRH) secretion from the hypothalamus and follicle stimulating hormone (FSH) and luteinizing hormone (LH) secretion directly from the pituitary. Objective : The objective of this study was to investigate the effect of clomiphene citrate (CC) and tamoxiphene citrate (TC) administered to male mice on quality of sperm parameters.Materials and Methods : Ninety six male mice were divided into two major groups, and every one of these groups was subdivided into three minor groups involving control and two treated groups. In the CC study, 48 mice were administrated orally 0, 0.0125 mg and 0.025 mg as control (G 1), low dose (G 2) and high dose (G 3) for 42 days. While, in the TC study, 48 mice were administrated orally 0, 0.01 mg and 0.02 mg as control (G 1), low dose (G 2) and high dose (G 3) for 42 days. Then, the male mice were sacrificed, both vas deferens were collected and assessment sperm parameters involving sperm concentration, sperm motility and activity, and normal sperm morphology. Results : The results of present study appeared that the use high dose of CC or TC significantly increment (P<0.05) sperm concentration as compared to control groups. However, use high dose of CC significantly increment (P<0.05) percentages of sperm motility and normal sperm morphology. Meanwhile, the percentage of progressive sperm motility was increased significantly (P< 0.05) when low CC dose administered as compared to control and high CC dose groups. In this study, percentages of sperm motility, progressive sperm motility and normal sperm morphology showed best elevation when used low TC dose as compared to both control and high TC dose groups. High TC dose causes significant increment (P<0.05) in the percentage of sperm agglutination when compared to control and low TC dose groups.Conclusions : Based on the results of this study, it can be concluded that the administration of high dose of either CC or TC increases sperm concentration, while administration of low dose of either CC or TC enhances progressive sperm motility.

تاثير الادينوسين ثلاثي الفوسفات على اخصاب وتطور الاجنة الاولي خارج الجسم الحي في الفئران كنموذج للجنس البشري == Effect of Adenosine Triphosphate On In Vitro Fertilization And Early Embryonic Development In Mice As A Model For Human Being

اسم المؤلف: مهند علي مشكور
اسم المشرف: محمد باقر محمد رشاد فخر الدين | نوال خيري العاني
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الحيوان - الاجنة
الدرجة: ماجستير
الجامعة: جامعة النهرين - المعهد العالي لتشخيص العقم والتقنيات المساعدة على الانجاب
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يعد الاخصاب خارج الجسم الحي (IVF) من احد اهم التقنيات المستخدمة لانتاج اعداد كبيرة من الاجنة لبحوث التطور الاساسيه والبيولوجيا الجزيئية لنضوج البويضات المختبري والاخصاب. يعتمد الاخصاب خارج الجسم الحي وظروف حفظ الجنين المثلى على مكونات الوسط الزرعي كونها ا | In vitro fertilization (IVF) is one of the most important techniques used to produce large numbers of embryos for research into the basic development and molecular biology of in vitro oocytes maturation and fertilization. Optimal IVF and embryo culture conditions depend on the composition of culture media being the most important determinants of success in vitro interaction of the gametes and subsequent embryo development. Adenosine 5 - triphosphate (ATP) is a fundamental factor to maintain life, by providing energy, and controlling the cell function and metabolism. Objectives : The present study aims to investigate the effect of ATP supplied to SMART medium on a rate of fertilization and early embryonic development (ED) in mice as a model for human beings.Materials and Methods : The female mice (90) were superovulated using superovulation program to produce a large number of oocytes. These were divided into three groups, the first group was inseminated with vassal sperm in vitro alone (control); the seconed group (G2) was inseminated with vassal sperm in vitro using SMART medium enriched with low concentration of ATP(1.25mM). The third group (G3) was inseminated with vassal sperm in vitro using SMART medium enriched with high concentration of ATP (2.5mM). Mouse spermatozoa were collected from both vasdeferens. Then sperm parameters were assessed after 30 min. IVF technique was performed for 3 groups, and assessed after 20 - 22h. Then, percentages of early embryonic development stages and abnormal embryos morphology (%) for each embryo stage were assessed.Results : Results of the present study revealed significant increment (P<0.05) in the in - vitro fertilization (%) when using 1.25mM ATP as compared to 2.5 mM ATP and the control group. Significant differences (P<0.05) in the 1 - cell stage were assessed in 2.5mM compared with 1.25mM groups and the control group. Also, Significant differences (P<0.05) in the 2 - cell and 4 - cell stage were assessed in 1.25mM ATP compared with other groups. However, non significant differences in the percentages of abnormal embryos morphology were reported between both treated groups of ATP.Conclusion : From the results of present study it was concluded that the low ATP concentration (1.25mM) enriched to the culture medium improved the percentage of in vitro fertilization and early embryonic development.

نوعية البويضة والتكوين الجنيني بعد الاعطاء الفموي للسبيرماكس لاناث الفئران : موديل تجريبي للبائن == Oocyte Quality And Embryonic Development After Oral Administration of Speramax® In Female Mice : Experimental Model For Mammal

اسم المؤلف: هبة صاحب حمزة
اسم المشرف: سعد صالح الدجيلي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الحيوان - الاجنة
الدرجة: ماجستير
الجامعة: جامعة النهرين - المعهد العالي لتشخيص العقم والتقنيات المساعدة على الانجاب
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Background : Speramax® has been found to play an important role in sperm function characters and males reproductive performance with no studies on its effects on the oocyte maturation and embryonic development in females.Objective : The goal of the thesis is to examine the effect of Speramax ® on oocyte maturation. And to emphasize the effect of Speramax ® on ova quality, embryonic development and newborn. Materials and Methods : Speramax ® treated by oral administration for 1, 2 and 4 weeks. A hundred and twenty six female mice were randomly divided into four groups, the first group was treated without Speramax® with superovulation(SUO) while the second group were treated by Speramax® with SUO and the third group were superovulated only and the fourth group was not treated and spontaneously ovulated (SPO) and considered the control group(thirty two mice). Results : The results indicated that the treatment with Speramax® showed a positive effect on oocytes maturation in vivo. There was a highly significance (p? 0.0001) improvement in number of mature oocytes following treatment with Speramax® in SPO and SUO mice compared with SPO and SUO mice not treated with Speramax®. The embryonic developmental rate after 24 and 48 hours of mating in treated groups with Speramax® was significantly (p? 0.05) higher than those of SPO and SUO mice too.The study showed that the quantity and quality of embryos generated from the treated groups were superior to that of untreated groups.Conclusion : It was concluded that the treatment by Speramax® has a great improvement on oocyte maturation, early embryonic development and embryo grading quality of mice embryos with an increase in the numbers of mice newborn.
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