A computational investigation has been carried out to describe synthesis optimization procedure of magnetic lenses. The research is concentrated on the determination of the inverse design of the symmetrical double polepiece magnetic lenses whose magnetic field distribution is already defined. Magnetic lenses field model well known in electron optics have been used as the axial magnetic field distribution. This field has been studied when the halfwidth is variable and the maximum magnetic flux density is kept constant. The importance of this research lies in the possibility of using the present synthesis optimization procedure for finding the polepieces design of symmetrical double polepiece magnetic lenses which have the best proje

In this paper we introduce the idea of the commutator of two fuzzy subsets of a group and study the concept of the commutator of two fuzzy subsets of a group .We introduce and study some of its properties .

External Morphologicalstudy of species DiplacodestrivialesRambure of family :
Libellulidae from suborder Anisoptera of the order Odonata which were collected from
Maisan Governorate 2010.
such study was included : Detailed description of most body parts (Head,
Thorax,Abdomen and their appendages), identification and recognition of species, study male
and female genitalia. The species Diplacodes Triviales Rambure was new record to Iraqi
fauna of Odonata.

         شهدت الاحداث الدولية بعد الحرب العالمية الثانية (1939- 1945) ظهور حركات التحرر في مختلف انحاء دول العالم وارتبطت تلك الحركات السياسية بالحركات الوطنية واسهمت بظهور قيادات وطنية ومطالبتها بالاستقلال عن الدول المستعمرة, وبرزت نخبة سياسية وطنية مثقفة كان لها الدور القيادي في التحرر وتأسيس الاحزاب في اقليم بليز أدت دوراً وطنيناً في الوقت الذي كانت تسعى الحكومة الغواتيمالية المطالبة بضم

الملخص

يعد عبد الله الخطمي من ابرز شخصيات بني خطمة وأكثرها تأثيراً وتفاعلاً باحداث التاريخ الإسلامي. فقد واكب حركة التطور الإسلامي في المدينة المنورة بوقت مبكر. فقد ذُكر انه بايع النبي (صلى الله عليه وآله وسلم) بيعة الرضوان في الحديبية وعمره (17) سنة ثم شارك مع المسلمين في الحروب والغزوات التي حدثت بعد بيعة الرضوان بما فيها فتح مكة وغيرها.

يعد البحث في (منهج المؤرخ أبن يونس المصري (ت347ه/958م) في استخدام المصادر والتعريف بها في كتابه الموسوم تاريخ ابن يونس) بحثاً مستلاً من رسالة الماجستير الموسومة (حياة أبن يونس المصري (ت347ه/958م) ومنهجه في كتابه تاريخ ابن يونس الصدفي), ويمثل هذا الجانب من الرسالة مرتكزاً يتفق مع عنوانها بشكل دقيق كونه يبحث في مصادر ابن يونس وحيثيات استخدامات كل مصدر ومن ثم نوعها .

        كان لاستخدام ابن يونس للمصادر طريقتين فضلا

لعب المعبد دوراً محورياً في حياة اليمنين القدماء، حيث لم يكن مجرد مكان للعبادة بل شكل مركزاً دينياً وسياسية واجتماعياً واقتصاديا، وكان يدار من قبل المكرب وهو لقب ديني جمع السلطة الدينية والسياسية أذ انه منصب ذات نفوذ كبير، وارتبط المعبد بالأنشطة الاقتصادية اذ كانت تجمع فيها الضرائب والنذور وتحفظ فيها السجلات. وتعقد فيها الاتفاقيات، اما دوره السياسي اذ مثل المعبد   مركزاً لتثبيت شرعية الحاكم الذي كان

الفن احد اهم الخصائص المعمارية  في مدينة الحضر اذ يعبر عن الهوية الثقافية والتاريخية للمدينة ويدخل ضمن مفهومه النحت، وسك العملة، والموسيقى، والزخرفة، التي تمثل بدورها عنصر فريد من عناصر دقيقة مثل الاكانثوس، واللسبيان، والمسبحة، والزهرة الحيوانية، والوجوه والاشكال الادمية، والاوراق الرباعية، والسداسية، والزخرفة المسننة والبيضة، والسهم ،والعنب، والحبل، وقبل الحديث عن تفاصيل هذه الزخارف لابد من معرفة

    من خلال دراسة هذا الموضوع نرى ان الولايات المتحدة الاميركية قد حددت سياستها الخارجية بشكل مبكر منذ استقلالها من بريطانيا عام 1776، أذ رسمت محددات تلك العلاقات الخارجية من خلال وضع قاعدة اساسها المعاملة بالمثل بالنسبة للدول الاوربية الكبرى، ولاسيما مع فرنسا لذلك نرى ان الولايات المتحدة لم ترضخ للابتزاز السياسي الذي مارسته فرنسا ضدها من خلال اهانة دبلوماسيها، لا بل وقفت موقف حكومي وشعبي حازم ضد الس

     لقد استبدلت كلمة مسجد بجامع في العمارة الإسلامية وبين عامة الناس كذلك، حتى اصبحنا لانسمع بكلمة مسجد الا قليلاً , ان ما هو مألوف بين الناس ان الجامع فيه منبر وتقام فيه صلاة الجمعة ، اما المسجد فليس فيه منبر ولا تقام فيه صلاة الجمعة ، والحقيقة ان النسبة الأكبر من المساجد فيها منابر و تقام فيها صلاة الجمعة لذلك اخذ يتردد اسم الجامع اكثر من اسم المسجد ، وكلما كان المسجد كبيراً و يرتاده اعداد ك

     Newcastle disease is one of serious pathological problems and causes of vast economic losses during 2011-2016 in Iraq. The disease caused high mortalities in all types of poultry nevertheless of vaccination. In this study all samples were collected from infected flocks with clinical signs of the disease. Inoculation of chicken embryonated eggs was carried out for virus isolation, identification, Haemagglutination and Haemagglutination Inhibition assay. Using Reverse Transcriptase-Polymerase Chain Reaction to confirm the presence of the virus, Intra Cerebral Pathogenicity Index and Mean Death Time were used to confirm all the isolates that were velogenic. The important determinant of Newcastle disease virus pathog

فرنادسكي مؤرخ روسي اهتم بالدراسات المغولية وخاصة حقبة التسلط المغولي على روسيا ، وكتب دراساته عنهم بكل انصاف وحيادية مطلقة ، فعدت كتابته مرجعاً رئيساً لكل باحث أو دارس في التاريخ المغولي، كما أنه اتقن اللغة الانكليزية فضلاً عن لغته الام (الروسية) وكتب اغلب مؤلفاته بالإنكليزية ربما لكي يطلع العالم الاوربي على منجزات المغول ومساهمتهم الفعالة في الحضارة آنذاك، واكد على دور المغول القبجاق القيادي في نهضة روسي

      عرضت في المبحث موارد إبن حجر العسقلاني (ت852 هـ/1448 م) في كتاب تقريب التهذيب وهو من المؤلفات الضخمة التي تناول فيه إبن حجر العسقلاني كم كبير من  تراجم العلماء ، وقد أمدنا دراسة كتاب تقريب التهذيب بمعلومات قيمة ورغم كونه                             من العلماء المتأخرين إلا إنه تناول علماء في حقبة زمنية لم يكن مولود فيها بإعتماده ع

         The participation in the rehabilitation of injuries among athletes and non-athletes from various sports, as well as the prevention and reduction of sports injuries and the restoration of athletes to their pre-injury condition, represent a fundamental goal in the sports field. Progressive rehabilitative exercises, applied from simple to complex, play a crucial role in restoring function and reducing pain among injured athletes. This study aimed to design and implement rehabilitation sessions composed of targeted exercises to treat partial Achilles’ tendon rupture in football players and to examine the differences between pre- and post-tests in static strength and balance. Using an experimental one-group pre–post desig

            The study aimed to investigate the effect of individual long jump slops and its effect on some biomechanical variables of U20 of triple jump. It is hypothesized that there is statistically significant difference between the results of the pre and posttests in the biomechanical variables of U20 of triple jumps. To achieve the aim of the study, one group pre-test post-test experimental design is used. A sample of (6) triple jump players under 20 years from the specialized schools of the Ministry of Youth and Sports, is non-randomly chosen during the academic year (2023-2024). The pilot study was carried out to on Tuesday and Wednesday (10/24/2023) at 4:00 p.m. at the Ministry of Youth and Sports stadiums on a group o

Drilling fluid loss during drilling operation is undesirable, expensive and potentially hazardous problem.

    Nasiriyah oil field is one of the Iraqi oil field that suffer from lost circulation problem. It is known that Dammam, um-Radoma, Tayarat, Shiranish and Hartha are the detecting layers of loss circulation problem. Different type of loss circulation materials (LCMs) ranging from granular, flakes and fibrous were used previously to treat this problem.  

    This study presents the application of rice as a lost circulation material that used to mitigate and stop the loss problem when partial or total losses occurred.

     The experim

This work includes a numerical investigation of steady two dimensional laminar natural
convection heat transfer in glazed rectangular enclosure at different tilt angles ranged from (0o
to 90o) for Rayleigh number (103-106), aspect ratios(4,5, and 8),and Prandtl number (0.7). The
study considers the effect of different boundary conditions on the heat transfer within the
enclosure. The continuity equation, Navier-Stokes equations and the energy equation are
solved by developing a numerical model based on finite volume method using SIMPLE
algorithm with hybrid scheme to compute the velocity vectors, temperature, pressure, and
Nusselt No. (local and average). Results show an increase in heat transfer rate with increasing

Finding the shortest route in wireless mesh networks is an important aspect. Many techniques are used to solve this problem like dynamic programming, evolutionary algorithms, weighted-sum techniques, and others. In this paper, we use dynamic programming techniques to find the shortest path in wireless mesh networks due to their generality, reduction of complexity and facilitation of numerical computation, simplicity in incorporating constraints, and their onformity to the stochastic nature of some problems. The routing problem is a multi-objective optimization problem with some constraints such as path capacity and end-to-end delay. Single-constraint routing problems and solutions using Dijkstra, Bellman-Ford, and Floyd-Warshall algorith

Objective This study aimed to identify the level of services provided in sports and recreational events The descriptive method was used on a sample of (657), who were randomly selected from three major cities in Saudi Arabia. Randomly selected from three major cities in the Kingdom of Saudi Arabia. The questionnaire was the data collection tool, and the results of this study found that the level of services The level of services provided at sports and recreational events in the Kingdom of Saudi Arabia came at an average level, and the services provided by females Their level is higher than males, as well as those who attend with family and relatives, the services provided better than those who attend alone, and there was no difference in

            This study aimed to investigate the effect of complex resistance-based exercises on enhancing the explosive power of the arms and legs and improving the accuracy of long-range jump shots among basketball players. A single-group experimental design with pre- and post-tests was employed, aligning with the research objectives. The population comprised 20 players from the First Al-Karkh Education Team, from which 8 were randomly selected for the main study, and 4 participated in an exploratory experiment. Homogeneity of the sample was confirmed for age, weight, and height, with skewness values within ±3. The training program, directly supervised by the researchers with assistance from the team coaches, lasted eight we

The study is interested in examining the organizational reputation of the Women's Committee at the Iraqi Football Association. Description of Work The descriptive design was conducted on a community sample of 218 Iraqi Football Association population. The researchers utilized a questionnaire as a data collection instrument and included 5 domains including leadership, creativity culture and structure; public relations capability, quality of performance and governance in their instrument. The findings demonstrated an acceptable level of institutional image for the women's committee altogether (firms and organizations) which would suggest that constructive measures have been taken regarding performance enhancement and promotion of s

            this study sport-related anxiety is explored by examining its influence on performance of young goalkeepers (under 20 year) in relation to key skills such as shot-stopping, positioning and reaction speed. The study population will be drawn from youth club teams in the Baghdad Governorate by experience and performance to achieve objectivity and generality. The study includes the 2023–2024 year sports season (preparation, training, competition periods) with measurements at different times to measure the effects of anxiety in various contexts. Information will come from local clubs and training centers that focus on the development of goalkeeper skills. The use of psychological measurements to ascertain anxiet

Production of Wet crude oil has been a growing field problem worldwide. Applications of the i:- .c methods and technologies to treat wet crude oil are needed to solve this problem and remove as much water as is economically possible. This paper deals with laboratory test to evaluate the relative efficiency of different emulsion breakets (de-emulsifiers) under different conditions.
Five de-emulsifiers were used to treat wet crude oil from East Baghdad and Kirkuk oilfields. On the basis of a laboratory study, it is shown that using RP6000 (commercial) and NIPD de-emulsifiers achieved the best results; the latter was introduced in the present work. The de-emulsification rate is inlluenced i:o a great extent by the de-emulsifier concentra

In this study an experimental work was done to study the possibility of using aluminum rubbish material as a coagulant to remove the colloidal particles from oily wastewater by dissolving this rubbish in sodium hydroxide solution. The experiments were carried out on simulated oily wastewater that was prepared at different oil concentrations and hardness levels (50, 250, 500, and 1000) ppm oil for (2000, 2500, 3000, and 3500) ppm CaCo₃ respectively. The initial turbidity values were (203, 290, 770, and 1306) NTU, while the minimum values of turbidity that have been gained from the experiments in NTU units were (1.67, 1.95, 2.10, and 4.01) at best sodium aluminate dosages in milliliters (12, 20, 24, and 28) for

This paper presents a complete design and implementation of a monitoring system for the operation of the three-phase induction motors. This system is built using a personal computer and  two types of sensors (current, vibration) to detect some of the mechanical faults that may occur in the motor. The study and examination of several types of faults including (ball bearing and shaft misalignment faults) have been done through the extraction of fault data by using fast Fourier transform (FFT) technique. Results showed that the motor current signature analysis (MCSA) technique, and measurement of vibration technique have high possibility in the detection and diagnosis of most mechanical faults with high accuracy. Subsequently, diagnosi

Praise be to God, prayer and peace upon our master Muhammad the Messenger of Allah peace be upon him mercy, gift, and grace, and rendered his family and the good righteous is followed until the Day of Judgment. After: The Koran

Laboratory experience in Iraq with cold asphalt concrete mixtures is very limited. The design and use of cold mixed asphalt concrete had no technical requirements. In this study, two asphalt concrete mixtures used for the base course were prepared in the laboratory using conventional cold-mixing techniques to test cold asphalt mixture (CAM) against aging and moisture susceptibility. Cold asphalt mixtures specimens have been prepared in the lab with cutback and emulsion binders, different fillers, and curing times. Based on the Marshal test result, the cutback proportion was selected with the filler, also based on the Marshal test emulsion. The first mixture was medium setting cationic emulsion (MSCE) as a binder, hydrate

أنَ المباني التراثية في مدينة المسيب سواء الشاخصة منها أو أنَصافها أو أجزاءها هي هوية الدينية لما لها من قيم دينية ذات قدسية بسب صاحب المرقد المدفون فيها.

أنَ مرقد القاسم الأكبر عليه السلام، هو من المراقد الرئيسة في مدينة المسيب، وأنَ عمارته مرت بمراحل، وأنَ تخطيط وعمارة المرقد المقدس ليس ببعيد عن تخطيط ، وعمارة المراقد الدينية المقدسة في المحافظات العراقية، ومن الطبيعي أنَ المراحل العمرانية التي مر ب

كان خروج روسيا من مبدأ حياد البحر الاسود من اهم النتائج التي تمخضت عن مؤتمر لندن لعام 1871 ، الخاص بمناقشة بنود معاهدة باريس للسلام لعام 1856 وبذلك خسرت الدولة العثمانبة حماية ذلك المبدأ 

اهداف الدراسة: تهدف الدراسة الى ايضاح دور اللوبي الصهيوني وجماعات الضغط الامريكية التابعة له في منع الادارة الامريكية والتأثير على قراراتها في منع تسليح أي من الدول العربية حتى الحليفة للولايات المتحدة الامريكية، وذلك لضمان التفوق العسكري الصهيوني في المنطقة وبحجة تمرير تلك الاسلحة الى جماعات المقاومة الفلسطينية.

المنهجية: تم استخدام المنهج التاريخي التحليلي لدراسة السجلات والوثا