In-Band Full-Duplex (IBFD) systems have the capability of simultaneously transmitting and receiving signals through the channel and require the same resources as half-duplex systems. Unfortunately, IBFD systems have self-interference (SI) issues that prevent the system from gaining double throughput with respect to half-duplex systems. Therefore, the IBFD system will be more reliable if SI is mitigated more. This contribution will look at SI cancellation in wireless radio and underwater acoustic systems. The reviewed documents cover all types of SI cancellations, including passive, analog, and digital cancellations. In a practical full-duplex system, the SI cancellation for all domains must cancel the SI below the receiver noi
... Show More Depending on the high resistance to antibiotics, five isolates of Pseudomonas aeruginosa and 7 isolates of Serratia fonticola were selected out of 150 bacterial isolates from burn wards in Baghdad hospitals, which were later identified by VITEK2. A susceptibility test was done by using 15 antibiotics. The results showed that all the selected isolates were resistant to antibiotics: AMP, CTX, CAZ, GEN, PIP, TIC and TMP especially, while they were sensitive to IPE. The essential oils of Aloysia citrodora (Family: Verbenaceae), Rosmarinus officinalis (Family: Lamiaceae) and
تناول البحث أحد الموضوعات الصرفية الموسوم بـ (أبنية المصادر ودلالاتها في شرح مقصورة ابن دريد للتبريزي (ت502هـ) ، والمصدر عند أهل العربية : هو الحدث المجرد من الزمن والشخص والمكان خارج علاقات السياق ، وقد أفصحت الدراسة عن عناية التبريزي بالمباحث الصرفية في شرحه لأبيات المقصورة بعامة ، وأبنية المصادر ودلالاتها بخاصة ، وبعد الاستقصاء تبيّن أن الشارح قد ذكر عدداً من مصادر الأفعال الثلاثية المجردة ، والثلاثية الم
... Show Moreتناول البحث سيرة الفقيه قُبيصة بن ذؤيب الخزاعي، ولد في المدينة في بيئة دينية، وتولى الرسول محمد (صلّى الله عليه وسلّم) رعايته بعد أن فقد والده، ثم ترعرع في المجتمع المدني وتأثر به واستقى علمه من الصحابة والتابعين من فقهاء ومحدثين وأخذ منهم وحدّث عنهم . وعدَّه المؤرخين من الطبقة الأولى من أهل المدينة ثم انتقـ إلى الشام وبدأ رحلة جديدة في حياته، فقد كان أثيراً عنـ الخليفة عبد الملك بن مروان (65- 86هـ/684- 705م) بحكم ال
... Show MoreOur aim in this work is to investigate prime submodules and prove some properties of them. We study the relations between prime submodules of a given module and the extension of prime submodules. The relations between prime submodules of two given modules and the prime submodules in the direct product of their quotient module are studied and investigated.
The present research design examines the relationship between SCARB1 gene expression and the progression of chronic myeloid leukemia (CML) in Iraqi patients. The variations in gene expression between patients with CML and healthy controls were investigated. The gender and age correlations with CML patients were included, as was the association of gene expression folding of the SCARB1 gene with clinical data (WBC, RBC, hemoglobin, platelets, and BCR-ABL gene). The results displayed a significant difference in the mean gene expression level (∆Ct) of the CML group when compared to the matching ∆Ct values in the healthy control group. The gene expression folding of the SCARB1 gene indicates considerable changes in expression, wh
... Show Moreدراسة مقارنة للشخصية الأنثوية کما " الغيرية ( او الآخر) " في الروايتين الطفل الخامس لدوريس ليسينغ و لعبة المنزل لبلجيس سليماني
الملخص
في هذه الدراسة ، الباحث، في ضوء نظريات جوديث بتلر حول المسألة الجنسانية، یتحاول علی استكشاف وفحص شخصيتين أنثويتين من سياقات ثقافية مختلفة من حيث قضية المرأة كمفهوم الذی لا يرتبط أبدًا
... Show MoreLet R be a commutative ring with identity. We call the proper submodule N of
M a coquasi - invertible submodule if (M, N) 0
Hom(M,N) 0
Hom the main purpose of this
work is the study of the properties of coquasi - invertible submodules. and give
definithon of corational submodule. Then show that if M is self projective, then N
is coquasi - invertible submodule of M if and only if N is corational in M
Landsat-7 Enhanced Thematic Mapper Plus (ETM+) sensor offers several
enhancements over the Landsat-5 Thematic Mapper (TM) sensors, including increased
spectral information content, improved geodetic accuracy, reduced noise, reliable
calibration, and matching scenes were recorded by both, and improved spatial resolution
of the thermal band. In this paper, we present some comparisons between Landsat-7
ETM+ and Landsat-5 TM imagery in order to quantify these improvements. Practically,
we find that the ETM+ continues the record of TM observations, and, in many respects,
substantially improves upon the earlier sensor. Specific improvements include lower
spatial noise levels, improved information content, and geodetic a
لقد اثبتت الكفائة الترجمية خلال العقدين المنصرميين على إنها ركيزة مفصلية في مجال الترجمة وذلك لاهميتها في العملية التعليمية بأعتبارها الوسيلة الرئيسية التي يتم على اساسها قياس مدى إكتساب الطالب للكفاءة في الترجمة. ومن خلال قياس كفاءة الترجمة لدى الطلاب يمكننا تقييم درجة الخبرة التي إكتسبها هولاء الطلبة. وبما ان درجة الخبرة المكتسبة من قبل الطلاب تؤثر سلباً على كلا من عملية الترجمة و الناتج الترجمي فعليه و
... Show MoreThis work comprises the synthesis of 18 new N- substituted 5,10-
dihydrophenophosphazine.The diphenylamine was chosen as the starting material ,
which was reacted with phosphorus trichloride at elevated temperature (200-220)0C
for 6 hrs, followed by treating the reaction mixture with water to yield 5,10-
dihydrophenophosphazine-10-oxide(1), this was reacted with ethylchloroacetat to
obtain ethyl(5,10-dihydrophenophosphazine-10- oxide)acetate(2). Compound (2)
was converted to acid hydrazide by treating with hydrazine hydrate( 98% ) to obtain
5-(5,10-dihydrophenophosphazine) acetohydrazide-10-oxide (3). The acid hydrazid
was used to react with phenylisocyanat , phenylthioisocyanat to give (4,7)
respectively which
A new mode of methodology was adopted in the assay of PM- HCL based on the use of water crystal gel bead made of poly acrylic acid in which the gel beads were left to absorbe persulphate solution that is necessary for the oxidation of PM- HCL in aqua media . The water crystal act as a reserviour for S2O82- . Optimum parameters were studied giving to specify the chemical and physical parameters. Two line manifold was used .The flow rates of 1.5 and 1.2 ml.min-1 was used , 3 gel beads , 120 μL sample volume , a linear dynamic range extend from 0.01- 18 mmol.L-1. A correlation coefficient (r) of 0.9991while the percentage linearity (r2%) of 99.82% with R.S.D% at 8 mmol.L-1 promethazine-HCl is less than 0.5% (ten replicates) and a detection
... Show MoreThe present study included the studies the effect of Fenugreek extract seeds on Glutamic oxaloacetic transminase (GOT), Glutamic pyruvic transminase (GPT) and Alkaline phosphatase (ALP) on liver cell of male albino mice. Group (1) of mice were administrated orally with fenugreek solution at a concentrated of (150 mg/kg of body weight) for 21 days for control treatment 10 mice was administrated with normal saline solution at adose of 0.1 mg/kg of body weight. At end animals were killed and their liver were removed and kept in formaline solution to histological study and another part of liver kept in 0.9% saline solution to measure specific activity of liver enzymes and tissue study. The result: indicated no significant reduction in liver
... Show MoreWe consider the general nonlinear regression problem . A
survey of some classical methods and stochastic approximation procedures for
estimating is first given. We solve the nonlinear regression problem by
considering the optimal stochastic approximation procedure by [3],[4]. This leads us
to introduce a new procedure , called "Stochastic Approximation Iterative Least
Square Procedure" SA -ILS procedure. The new procedure is applied to a number of
nonlinear regression models. We report on the results of a simulation investigation
which indicate that the new procedure is highly efficient with respect to the number
of observations required to obtain the parameter estimates for given regression
problem.
In this work, lead oxide (PbO) thin films were deposited using D.C. sputtering method on a surface of glass substrates and then thermally annealed at a temperature of 473K with annealing times of (1,2 and 3) hours. The structural, morphological, and optical properties of films were determined using X-ray diffraction (XRD), atomic force microscopy (AFM), FT-IR, and UV-Visible spectroscopy. The structure studies confirmed that PbO films are polycrystalline structures in an orthorhombic phase with average grain size (24.51, 29.64, 46.49, 16) nm with increasing annealing time. From AFM, the roughness of the film surface (3.26, 1.76, 1.61, 1.79) nm as the film annealing time increases. The optical band gap values of the PbO thin fi
... Show Moreمن ظواهر النَّقد الصَّوتيّ عند ابن السِّيد البطليوسيّ (ت521هـ)، ما يتعلَّقُ بتخفيف الهمزة وتحقيقها، فهي من الظَّواهر الشائعة والمشهورة في اللَّهجات العربيَّة، إذ تعقَّب البطليوسيّ أقوال اللُّغويين في هذه الظَّاهرة الصَّوتية وتناولها بالنَّقد، واستند في ذلك إلى أدلة الصِّناعة اللُّغويَّة وهي: (السَّماع، والقياس، والإجماع)، واخْتَطّ البطليوسيّ لنفسه منهجاً نقديّاً موضوعيّاً، مُنصِفاً، مُعتدِلاً، ب
... Show Moreهدفت الدراسة الحالية التعرف على مدى اتباع حملات الوقاية ضد المخدرات المقدمة للوالدين في امارة الشارقة على المعايير العالمية للوقاية من المخدرات، والتعرف على هذا التقييم وفقا لمتغيرات الجنس وعمل الوالدين والتحصيل العلمي للوالدين، وكيف يمكن تطوير هذه الحملات، ولتحقيق أهداف الدراسة تم اعداد استبانة باعتماد نظرية الضبط الاجتماعي والتي تم تطبيقها على عينة عشوائية طبقية تتألف من أحد الوالدين (الأم أو الأب) لط
... Show Moreيهدف هذا البحث لدراسة أسلوب الخبر في ديوان شاعر من شعراء العصر العباسي الثاني تميز بولائه لأهل البيت (عليهم السلام)، ومعرفة الجمل الخبرية التي اتكأ عليها في ديوانه والمؤكدات التي ادخلها في نصوصه لإقناع المتلقي بالخبر الذي يريد ايصاله والاسئلة التي يطرحها البحث هل وفق الخليعي في توظيف انواع الخبر في شعره ،وهل كانت اخباره ابتدائية أم طلبية أم انكارية وما ابرز الأغراض البلاغية الاخرى التي خرج اليها الخبر في ش
... Show Moreيحظى أدب الخيال العلمي في العالم المتقدم باهتمام بالغ في الأوساط الأدبية النقدية. ولا يمكن البحث في رواية الخيال العلمي في الإمارات دون أن يأتي اسم الكاتبة نورة أحمد النومان، التي تُعد أول كاتبة وروائية متخصصة في مجال الخيال العلمي. فمن خلال هذا البحث نلقي الضوء على أول روائية إماراتية كتبت رواية الخيال العلمي في روايتها (أجوان). فالخيال العلمي هو الوسيلة المثلى للربط بين الثقافة الأدبية والثقافة العلمية، و
... Show MoreIn this paper, we suggest a descent modification of the conjugate gradient method which converges globally provided that the exact minimization condition is satisfied. Preliminary numerical experiments on some benchmark problems show that the method is efficient and promising.
هدفت الدراسة بشكل رئيس التعرف على الإساءة الواقعة على الأشخاص من ذوي الإعاقة البصرية في مجتمع الإمارات، ولتحقيق أهداف الدراسة تم استخدام المنهج الكمي باستخدام أداة الاستبيان، وطبقت الدراسة على عينة من الأشخاص من ذوي الإعاقة البصرية تشكلت من 45 شخص بطريقة غرضيه غير احتمالية من مجتمع الإمارات، وقد توصلت الدراسة لعدد من النتائج أبرزها: أن أعلى فئة عمرية كانت في عمر 18-25 سنة وغالبيتهم من الاناث، ومعظم أفراد الع
... Show Moreالفعل هو ما دل على الزمن والحدث، وفي قراءة أبان بن تغلب في الرفع دلّ الفعل على الحال مثل قراءته {نقاتل} فأراد حالهم هو القتال، ومن حالات النصب هو حذف النون من الفعل وذلك طلبا للتخفيف، وحجة قراءته بالمبني للمعلوم أنّه قد بنى الفعل للفاعل.
In this paper we present a study on Peristaltic of fractional generalized Maxwell viscoelastic fluid through a porous medium. A modified Darcy-Brinkman model is utilized to simulate the flow of a generalized Maxwell fluid in a porous medium in an inclined channel with slip effect. The governing equation is simplified by assuming long wavelength and low Reynolds number approximations. The numerical and approximate analytical solutions of the problem are obtained by a semi-numerical technique, namely the homotopy perturbation method. The influence of the dominating physical parameters such as fractional Maxwell parameter, relaxation time, amplitude ratio, permeability parameter, Froude number, Reynolds number and inclination of channel on
... Show MoreThe structural, optical properties of cupper indium gallium selenite (CuIn1-xGaxSe) have been studied. CuIn1-xGaxSe thin films for x=0.6 have been prepared by thermal evaporation technique, of 2000±20 nm thickness, with rate of deposition 2±0.1 nm/sec, on glass substrate at room temperature. Heat treatment has been carried out in the range (373-773) K for 1 hour. It demonstrated from the XRD method that all the as-deposited and annealed films have polycrystalline structure of multiphase. The optical measurement of the CIGS thin films conformed that they have, direct allowed energy gap equal to 1.7 eV. The values of some important optical parameters of the studied films such as (absorption coefficient, refractive index, extinction coeffici
... Show MoreSteganography is one of the most popular techniques for data hiding in the different media such as images, audio or video files. This paper introduced the improved technique to hide the secret message using the LSB algorithm inside the RGB true color image by encrypting it using the secret key transformation function. The key is selecting randomly in the GF (2n) with condition it has an inverse value to retrieve the encrypted message. Only two bits are used for the low byte in each pixel (the blue byte) to hide the secret message, since the blue color has a weak effect on human eyes. The message hidden by the suggested algorithm is less vulnerable to be stolen than other similar applications.
In this paper, we will show that the Modified SP iteration can be used to approximate fixed point of contraction mappings under certain condition. Also, we show that this iteration method is faster than Mann, Ishikawa, Noor, SP, CR, Karahan iteration methods. Furthermore, by using the same condition, we shown that the Picard S- iteration method converges faster than Modified SP iteration and hence also faster than all Mann, Ishikawa, Noor, SP, CR, Karahan iteration methods. Finally, a data dependence result is proven for fixed point of contraction mappings with the help of the Modified SP iteration process.
A field trial was conducted at Abu-Ghraib research station, Baghdad , Iraq ,The objectives were to study the effect of the competition with in plants on period long of growth stages by the effects nitrogen fertilizer and planting space of rape seed . A split-plot in a randomized complete of block design with three replications were used . Five levels of nitrogen fertilizer ( 120,160,200,240,280 Kg / ha ) were assigned to main plots, whereas planting space(30,40 and 50cm) in sub-plots .The result obtained confirmed that the plant did not varied significantly at the first three growing stages (A no real leaves only the 2 cotyledons can be seen),B1 (one real leaf is spread and unfurled),B4 (four real leaves is spread and unfurled ) and stag
... Show More