A theoretical study for a three-dimensional natural convection heat transfer from an isothermal horizontal , vertical and inclined heated square flat plates (with and without circular hole) has been done in the present work. The study involved the numerical solution of the transient Navier-Stokes and energy equations by using finite deference method (F.D.M.). The complete Navier-Stokes
equation are transformed and expressed in terms of vorticity-vector potential. The Energy and Vorticity equations were solved by using an Alternating Direction Implicit (ADI) method because they are transient equations of parabolic portion, and the Vector potential is solved by using an equations Successive Over-Relaxation (S.O.R) method because it i

Optimization procedures using a variety of input parameters have gotten a lot of attention, but using three non-edible seed oils of Jatropha (Jatropha curcas), Sesame (Sesamum indicum), and Sweet Almond (Prunusamygdalus dulcis) has a few advantages, including availability and non-food competitiveness. Optimizing a two-stage trans-esterification process using a sodium hydroxide-based catalyst at a fixed catalyst (1.0wt %) and temperature (60 ^oC) while varying molar ratio (1:3, 1:6, 1:12),  time (20–60 min), and mixing speed (500–1000 rpm), to produce optimal responses of yields were studied using response surface methodology (RSM). The optimization solution of molar ratio (1:3), time (40.9 min.),

  In this research, the study effect of additive titanium dioxide powder (TiO2) as a lone composite ( Ep+TiO2) and a mixture of (TiO2) and silicon oxide (SiO2), ( Ep+ TiO2+SiO2)as a hybrid composite on the mechanical and physical properties for epoxy coating. Thescompsiteswere prepared by (Hand Lay- the molding) method. The samples were tested for compressive strength, surface hardness, modulus of elasticity, thermal conductivity and diffusion coefficient, from the results obtained showed improvement in mechanical properties after adding ceramic powders, as the alone composite (EP+ TiO₂) had the highest compressive strength ( 53.738 ) ᴍPa, the hybrid composite ( EP+TiO₂ +SiO₂ ) had the

In this research, the dynamics process of charge transfer from the sensitized  D35CPDT dye to tin(iv) oxide( ) or titanium dioxide (  ) semiconductors are carried out by using a quantum model for charge transfer. Different chemical solvents Pyridine, 2-Methoxyethanol. Ethanol, Acetonitrile, and Methanol have been used with both systems as polar media surrounded the systems. The rate for charge transfer from photo-excitation D35CPDTdye and injection into the conduction band of  or  semiconductors vary from a  to  for system and from a   to  for the system, depending on the charge transfer parameters strength coupling, free energy, potential of donor and acceptor in the system. The charge transfer rate in D35CPDT /  the system is

This work is concerned with studying the optimal classical continuous control quaternary vector problem. It is consisted of; the quaternary nonlinear hyperbolic boundary value problem and the cost functional. At first, the weak form of the quaternary nonlinear hyperbolic boundary value problem is obtained. Then under suitable hypotheses, the existence theorem of a unique state quaternary vector solution for the weak form where the classical continuous control quaternary vector is considered known is stated and demonstrated by employing the method of Galerkin and the compactness theorem. In addition, the continuity operator between the state quaternary vector solution of the weak form and the corresponding classical continuous control qua

 تضمنت الدراسة بيان أهمية الدورات التحكيمية الدولية بكرة القدم وخاصة في العراق بعد مرور أكثر من سبع سنوات على إقامة آخر دورة تحكيمية دولية ، إن هذه الدورات بالتأكيد تعمل على صقل معلومات الحكام للمستجدات وتعديلات القانون وآخر التمرينات البدنية الحديثة للحكام وخاصة المشاركين هم من الحكام الشباب الذي يعتمد عليهم مستقبلا، وبما إن هؤلاء الحكام المشاركين لم يسبق لهم المشاركة في أي دورة دولية وبالتالي فهذه ال

Learning Disabilities are described as a hidden and puzzling disability. Children with these difficulties have the potential to hide weaknesses in their performance because they are a homogenous group of disorders that consist of obvious difficulties in acquiring and using reading, writing, Mathematical inference. Thus, the research aims to identify the disabilities of academic learning in (reading, writing, mathematics), identify the problems of behavior (general, motor, social). Identify the relationship among behaviour problems. The research also aims to identify the counseling needs to reduce the behavioral problems. The researcher adopted the analytical descriptive method by preparing two main tools for measuring learning disabiliti

Visualization of water flow around different bluff bodies at different Reynolds number ranging (1505 - 2492) was realized by designing and building a test rig which contains an open channel capable to ensure water velocity range (4-8cm/s) in this channel. Hydrogen bubbles generated from the ionized water using DC power supply are visualized by a light source and photographed by a digital camera. Flow pattern around a circular disk of (3.6cm) diameter and (3mm) thickness, a sphere of (3.8cm) diameter and a cylinder of
(3.2cm) diameter and (10cm) length are studied qualitatively. Parameters of the vortex ring generated in the wake region of the disk and the separation angle of water stream lines from the surface of the sphere are plott

 Thin films were prepared from melting coumrin C 2 dye in solvent DMF with PMMA with the same  solvent and concentrations(1*10-2    5*10-3, 1*10-3  )M ,Films were either left on Flat surface for24hours or dried in avacuum oven for five hours at a temperature of 80c.The relative intensity of both the absorption and fluorescece spectrum are found to be increased with the increase of thickness of these films and concentration  .Also the thickness of these films was measured by Mickelsons interfearing method.Also quantum efficiency of these films were measured too

المدرب الذي يواجه صعوبة في تحمل المسؤولية يميل الى التعثر او المثابرة على مهمه معينة او طريقة معينة للتعامل مع المهمة ، لذلك عندما يقوم المدرب بمهمه ما سواء في عملية التدريب او في المنافسات ، ان تحمل المدرب للمسؤولية والتي تعني النضج ’بمعنى أن يكونَ  المدرب مسؤولاً عن تصرفاته تجاه اللاعبين ويهدف البحث الى: بناء مقياس تحمل المسؤولية لمدربي كرة القدم من وجهه نظر لاعبي الدوري العراقي الممتاز معرفة تحمل المس

Began research of the foundations of Orientalist discourse based on force and metadata and authority, and the possibility of turning the West's view of the East as if made ​​radical changes in the structure of the West or in a relationship of power and authority between it and the east. We have adopted in our paper on the research categories of Edward Said and visions in the field of Orientalism in general, and especially his book entitled the name of this area, not forgetting, or leave the expansion to other sources, a researcher in this field, to enrich the research.

We went to Orientalism as a concept and based cognitive, and the work of the Orientalist, and the meanings of Orientalism, which suggests Balastala which was c

A field experiment was carried out in the spring season of 2016 in sedimentary soil (silty clay loam) in order to study the effect of adding different types of nitrogen fertilizer (urea, di- ammonium phosphate and ammonium sulphate) at level 200 kgN ha^-1. Zinc fertilizer has been sprayed with concentrations (0, 20, 40 and 60) mg ZNL^-1 on growth and yield of snake cucumber. The results showed a significant increase in ammonium sulphate fertilizer in plant length, dry weight, leaf area, early yield, plant yield and total yield. The results showed that the concentration of 60 mg  L^-1 was significantly higher in plant length, dry weight, early yield, plant yield and total yield.&

Two   pots   experiments were  conducted  one of  silty  clay  loam texture  and the other in  loamy  sand  texture   by planting barley crop variety “Samir” to evaluate extraction efficiency of  seven  chemical   extractants via the   correlation with  the   potassium taken up by barley crop. Four  of these extractants were: BaCl₂, CaCl₂, MgCl₂ and NaC l; the remaining three were: CH₃COONH₄,  NH₄HCO₃,  NH₄HCO₃ + DTPA. The study  was  performed by  the application of four  lev

لاشك ان الانسان في هذه الحياة لاغنى له عن المال الذي فيه قوام الحياة بلاضافة الى ذلك يكفي أنه يمكن صاحبه من العيش يكراه وعفه عن سؤال غيره، وقد جعل الله عز وجل وجوها كثيرة للتكسب الحلال، فأباح كل كسب ليس فيه اعتداء، ولاظلم ولاضرر على الغير، وقد ذكر الفخر الرازي رحمه الله العديد من ضوابط ومقاصد الكسب وأورد الادلة الحاثة عليه من الكتاب والسنة، وأكد على اهمية الكسب الحلال بالطرق التي شرعها الله عز وجل.

الكلما

تكمن أهمية الدراسات النحوية  للغة الاكدية في كونها تمثل مظهراً حضارياً من مظاهر تلك  اللغة ، ودليلاً على أصالتها وضوابط تحكم استعمالها ، ولا تقتصر أهمية الدراسات النحوية على الوظيفة الأدائية للغة ، وإنما يلاحظ أن للدراسات النحوية أهميتها الأدبية  . ومن هنا جاءت الفكرة في دراسة عنصر نحوي مهم من عناصر الجملة الأكدية ألا وهو البدل الذي ظهر جلياً في سطور النصوص المسمارية الاكدية بلهجاتها المختلفة سواءً

Infection of the gastric mucosa with Helicobacter pylori is strongly associated with chronic gastritis, peptic ulcer and gastric cancer. Helicobacter pylori virulence factors include a variety of proteins that are involved in its pathogenesis, such as VacA and CagA. Another group of virulence factors is clearly important for colonization of H.pylori in the gastric mucosa. These include urease, motility factors (flagellin), and Superoxide dismutase (SOD). Because of this organism's microaerophilic nature and the increased levels of reactive oxygen in the infected host, we expect that other factors involved in the response to oxidative stress are likely to be required for virulence. Superoxide dismutase is a near

Concealment of the Offenders:

Its Conceptions, Evidence, Objectives, Criteria

This study discusses the concealment of the offenders, but also emphasize the importance of clarifying this concept. Furthermore, it differentiates between this concept and other relevant concepts. Moreover, this study explains that the ruling of the concealment of the offenders is required by sharia. This is evident by many proofs of the Quran and the Sunnah in addition to being in line with the sharia’s objectives.

Additionally, the study mentions several advantages to the concealment of an offender and the disadvantages of reporting an offender. Examples include ensuring the Islamic community cohesion, encouraging offe

This research is a critical methodological  study deals with some Quranic verses abrogative,abrogated.

by Ibn al-Jawzi (may Allah have mercy on him) in his book (Tafseer Zad al-Maseer) inin Surah Al-Baqara the  in the holy Quraan.

Editorial Board

يتناول هذا البحث الاطار القانوني المنظم لاستثمار المتقاعدين في العراق، مركزا على تشغيلهم بعد الاحالة على التقاعد، باعتباره احد اوجه الاستفادة من راس المال البشري الوطني وقد استعرض البحث الاحكام القانونية النافذة سواء ما تعلق منها بالحقوق والواجبات، لاسيما القرار(361)لسنة 1985 والتعليمات رقم(7) لسنة1985، وتبين تعارضها مع النصوص الدستورية والقوانين الحديثة مثل قانون العمل رقم (37) لسنة2015 وقانون التقاعد والضمان ا

An attempt was made to evaluate the PV performance of one-axis daily tracking and fixed system for Baghdad, Iraq. Two experimental simulations were conducted on a PV module for that purpose. Measurements included incident solar radiation, load voltage and load current. The first experiment was carried out for six months of winter half of year to simulate the one-axis daily tracking. The azimuth angle was due south while the tilt angle was being set to optimum according to each day of simulation. The second experiment was done at one day to simulate the PV module of fixed angles. It is found that there is a significant power gain of 29.6% for the tracking system in respect to the fixed one. The one-axis daily tracking was much more effect

ان عقد الضمان المستقل بالمعنى الدقيق للعقود هو عقد اتجهت ارادات اطراف المعاملة الضمانية بالمعنى الواسع[i]، الى اعتباره عقداً مستقلاً قائماً بذاته، وفصلته عن حالة التبعية المعروفة بالضمانات التقليدية، ينبني على ذلك ان الضمان مدار البحث لا ينتهي بذات الاسباب التي تنتهي بها الضمانات التقليدية من اسباب تبعية، بمعنى ان فسخ او انهاء العلاقة الرئيسية لا يستتبعه انقضاء الضمان المستقل، او ان ت

تناول البحث التعريف بالقانون الدولي والداخلي واتجاهاته في المبحث الأول وفي الثاني تناول البحث نظريات القانونين وفي الثالث موقف القانون الدولي من النظام القانوني العراقي والأردني.

 قسمت المبحث الأول الى مطلبين: الأول عرفت القانون الدولي العام باعتباره فرع من فروع علم القانون وكيفية اختلف العلماء في تسمية هذا القانون ومنهم من اطلق عليه (الأمم) ومنهم من اسماه ( قانون الشعوب) وبينت اتجاهاته والتي هي الا

The current study conducted to identify the bacterial isolates from burns and wound infections that are responsible for various skin complication in such conditions and determination the development of antimicrobial resistance among these bacterial isolates. This study is carried out Between September 2020 to December 2020, a total number of (103) burns and wound swabs were taken from different patients from different hospitals in Baghdad city, the specimens were collected from; burns (57) and wound (46) swabs, the specimens were included; (51) female and (52) Male, the age average between (2 - 70 years). The positive bacterial containing specimens are (93) swabs, most of them are mixed (82 specimens) with differ

الخلاصة ان زيادة المقاومة للمضادات الحياتية اصبحت مشكلة عالمية في مجال الصحة العامة و خصوصا داخل المؤسسات الصحية كما تعتبر بكتريا المكورات العنقودية من اكثر الجراثيم المسببة للاخماج في تلك المؤسسات حيث اصبحت لديها القدرة على مقاومة الكثير من المضادات الحيوية  .

الهدف من الدراسة: ان الهدف من هذه الدراسة هو تقييم مدى الارتباط بين مقاومة المضاد الحيوي الارث

خلفية الموضوع: يشكل اعتلال الاعصاب المحيطية مضاعفة شائعة لداء السكري. وان المرضى المصابين بداء السكري  معرضين اكثر من غيرهم للاصابة  بألتهاب الاعصاب المحيطية المتعدد منزوع النخاعين المزمن ،و هو من امراض المناعة الذاتية المكتسبة.                         

  الاهداف:   تقييم أهمية الاستقصائا

خلفية البحث:-

سرطان القولون هو مرض شائع جدا في جميع أنحاء العالم كونه رابع أكثر أنواع السرطان شيوعا التي تتميز بانتشار غير طبيعي من الجدار الداخلي للقولون في البداية ثم أخذ كامل سماكة جدار القولون ثم إلى العقد الليمفاوية والانسجة المحيطة ثم ورم خبيث.

الهدف: - لتقييم فعالية CA19-9 و  CCSA-4 ومستوياتها في الدم في فحص ،متابعة وتشخيص سرطان القولون وصل

Background: Congenital defects in continuity of the intestine are morphologically divided into either stenosis or atresia and constitute one of the most common causes of neonatal intestinal obstruction. 
Patients and methods: This is a prospective study for analyzing (60)neonates with jejunoileal atresia who were managed at Children Welfare Teaching Hospital in Baghdad over a three years peroid extending from 1st January 2004 to 1st January 2007.
Results: Thirty six patients (60%) had jejunal atresia while ileal atresia was in(24) patients(40%).The most common type of jejunoileal atresia was type IIIa (38.3%) of the cases and the second was the type II (25%).The clinical presentation for jejunal atresi