The main objective of present work is to describe the feasibility of friction stir welding (FSW) for
joining of low carbon steel with dimensions (3 mm X 80 mm X 150 mm). A matrix (3×3) of welding
parameters (welding speed and tool rotational speed) was used to see influence of each parameter on
properties of welded joint .Series of (FSW) experiments were conducted using CNC milling machine
utilizing the wide range of rotational speed and transverse speed of the machine. Effect of welding
parameters on mechanical properties of weld joints were investigated using different mechanical tests
including (tensile and microhardness tests ). Micro structural change during (FSW) process was
studied and different welding zones

A comparative investigation of the anatomical characters through a microscopical examination of the prepared transverse sections of the stem was carried out. Six plates with 32 photomicrographs were provided to convincingly show the considerable variations of anatomical characters within the nine examined species. The matrix of 18 anatomical characters which included nine quantitative and nine qualitative was applied for the clustering analysis (CA) followed by the principal component analysis (PCA) using the Multivariate Analysis of Ecological Data, PC-ORD.
The results exhibited significant variations among the species resulting in the construction of an artificial key; this key accurately represents a sufficient tool to display the

هدف البحث الى اعداد منهاج تعليمي لتطوير المجال المعرفي وأداء بعض المهارات الاساسية لطلاب التربية الرياضية بكرة اليد، أما الهدف الثاني فكان التعرف على الفروق بين الاختبارين القبلي والبعدي في تطور المجال المعرفي وأداء بعض المهارات الاساسية، والهدف الرابع التعرف على العلاقة بين المجال المعرفي واداء بعض المهارات الاساسيه لدى طلاب التربية الرياضية بكرة اليد.اما الفرضية الاولى فكانت: توجد فروق ذات دلالة احصا

The field experiment was conducted at botanical garden of Department of Biology, College of Education for Pure Science/ Ibn-Al-Haitham, University of Baghdad to study the effect of Lepidium sativum leaves extract and pumpkin seeds Cucurbita pepo in two concentrations 10% and 20% on physiological characters ofPimpinella anisum. The results showed that in either concentration plant heights, dry weight, biological yield, economic yield, weight of 100 fruits, harvest index, absolute growth rate (AGR) were all increased and percentage of oil in fruits as compared with control plants

Numerical analysis of the cooling process of hot water discharge from a steam power plant into a river has been carried out in the present study. A mathematical model describing the flow field and temperature distribution induced in the river as a result of the cooling process is made based upon the assumptions of steady state, two-dimensional, turbulent flow, in the horizontal plane. The governing equations are the continuity, the momentum, the (К-ε) turbulence model and the energy equation. A proper initial and boundary condition are specified to be used in the solution of the governing equations. A numerical solution of the governing equations is made by using the control volume approach, with non-staggered grid technique and modifi

  اللهجات واللغات القديمة في إيطاليا عرفت من خلال نتاج مجموعة من الباحثين بزمان ومكان ووسائل متعددة تفاعلت مع بعضها لتنتج حدث تاريحي حصل ‘ كون جميع التغيرات التي تطرأ على المجتمع له صلة بحياة الانسان الذي هو جزء من الحادثة التاريخية ‘وبتطور حياة الانسان وتداخل المجتمعات ظهرت عدة لهجات ولغات من اجل التواصل والتفاهم ‘هذا أدى بدوره الى اختراع الكتابة التي مرت بعدة مراحل زمنية قبل ان تبلغ القبول والسهولة ف

In the present work, the behavior of thick-walled cylinder of elasto-plastic material (polymeric material) has been studied analytically. The study is based on modified Von-Mises yield criterion (for non metallic material). The equations of stress distribution are obtained for the cylinder under general cases of elastic expansion, plastic initiation and elastic-plastic expansion.

        A computer program is developed for evaluating the stress distribution. The solution is carried out for worst boundary conditions when the cylinder is subjected to the combination of pressure load, inertia load, and temperature gradient.

        The results are presente

    This paper is devoted to the analysis of nonlinear singular boundary value problems for ordinary differential equations with a singularity of the different kind. We propose semi - analytic technique using two point osculatory interpolation to construct polynomial solution, and discussion behavior of the solution in the neighborhood of the singular points and its numerical approximation. Two examples are presented to demonstrate the applicability and efficiency of the methods. Finally, we discuss behavior of the solution in the neighborhood of the singularity point which appears to perform satisfactorily for singular problems.

Abstract

This study aims to identify the extent to which the criteria of the American Council for Teaching Foreign Languages (ACTFL) are included in the English language books for the fifth and sixth graders. To achieve the objective of the study, a content analysis card was prepared, where the classification of language proficiencies was divided into five main levels (beginner, intermediate, advanced, superior, and distinguished) of the four language skills (listening, speaking, reading, and writing), The content analysis card consisted of (89) indicators distributed at the four levels of language skills as follows: Listening (17), speaking (33), reading (15), and writing (26). The study sample consisted of Engl

Pulses are the second most significant economic crop that have been attacked by many storage pests. One of these pests is the cowpea beetle (Callosobruchus maculatus).  This study aims to study the effect of phenol  grape seed (Vitis vinifera) extract (1000,1500,2000,2500and 3500 mg/L) on eggs and adults. The results showed that the alcoholic extract of the grape seed (Vitis vinifera) recorded for the egg hatching was (80, 56.67, 53.33, 40.00 and 10.00%) respectively, Results in the use of nanocapsules at concentrations of 100 and 500 mg/L showed the egg hatching ratio was (53.33, 16.67%) respectively, while the results of alcoholic extracts of grape seed (Vitis vinifera)  recorded for a

This research deals with the nature of the Turkish attitude towards the events of the Arab Spring which the Arab region witnessed recently, as this attitude is characterized by hesitation and utter confusion about those events at its beginning. However, the development of events and the consequent repercussions led the Turkish decision makers of the foreign policy to reconsider their attitude towards those events for political, economic, cultural and social motives.

This study was conducted in the Third River for the extended period from January 2022 to December 2022. A total of 327 Cyprinus carpio fish were collected. The measurements were carried out to show the monthly changes in food selection, some of the functional traits that influence feeding were also measured. The results showed that the highest rate of stomach values containing food was found in the months of May and July, while the highest level of feeding intensity was recorded in November. The results of the study suggested that the standard length for tested fish was 342.5±88.5.mm.  Head length, and head depth were 77.91± 18.12 mm and 64.91± 15.03 mm consecutively. The study concluded that the functional trait

The aim of this study was to identify and differentiate between Fasciola gigamtica and Fasciola hepatica infections in buffaloes, through the application of PCR technique. Also, includes investigate the characteristics of phylogenetic analysis for Fasciola gigantica based on partial mitochondrial DNA. The application of polymerase chain reaction technique (PCR) in molecular diagnosis was exhibited high levels of specificity and sensitivity in identifying both species of Fasciola depend on two different genes NADH 6 for F. hepatica and NADH 4 for F. gigantica. Moreover the percentage of infection by F. hepatica and F. giga

Objective: To evaluate the changes in the surface quality of irreversible hydrocolloid impression material
hydrogum following disinfection with 0.525% sodium hypochlorite, 0.2% Chlorehexidine Gluconate, and 4%
Povidone Iodine.
Methodology: Forty specimens of alginate impression materials hydrogum were fabricated according to the
ISO 1563 and were divided into four groups according to the method of solution dipping: group 1: Dip in
0.525% sodium hypochlorite, group 2: Dip in 0.2% chlorhexidine gluconate, Group 3: Dip in 4% Povidone Iodine,
Group 4: No treatment with any solution (control group). Then the specimens were poured in type II stone.
Surface detail was determined using a stainless steel block in accordance w

In the present paper we report the synthesis of a new ligand [HL][(2-1-[(2-hydroxy-benzylidene)-hydrazono]-ethyl) benzene-1, 3, 5-triol and its complexes with (Mn", Fe", Cd", and Hg") The ligand was prepared in two steps. In the first step a solution of salicylaldehyed in methanol reacted under reflux with hydrazinemonohydrate to give an intermediate compound which reacted in the second step with 2, 4, 6-trihydroxidernonohydrate giving the tientioned ligand. The complexes were synthesis by direct reaction of the corresponding metal chloride with ligand. The ligand and the complexes have been characterized by spectroscopic methods [" H NMR, IR, UV-Vis,, atomic absorption], HPLC microanalysis along with conductivity measurements. From the abo

Background: Lowering the amount of iodinated contrast material and tube voltage may increase pulmonary artery opacification and thrombus identification without compromising picture quality.

Objectives: To explore the efficiency of using lower tube voltage and a lower contrast medium dose for conducting computed tomography for pulmonary angiography (CTPA) aiming to increase its accuracy in detecting pulmonary thromboembolism (PTE).

Subjects and Methods:100 patients scheduled for CTPA with a preoperative diagnosis of PTE were grouped into two: group A, (50 patients) got 1 mL/kg at 120 kV and group B, (50 patients) received 0.5 mL/kg at 80 kV.The tec

        يمر عالمنا المعاصر اليوم بمرحلة من التطور والتغيير السريعين لم يسبق له أن مر بهما فـي تاريخ البشرية ، ويشمل مظاهر الحياة  الأنسانية  والأقتصادية والعلمية والتربويـة والنفسية وغير ذلك . وتختلف سرعة هذا التغيير من مجتمع الـى مجتمع آخر , وأدى هذا الى تراكم كميات كبيرة من المعلومات .

         لقد أكد الكثير مـن التربويين أن التطور التكنولوجي فـي ال

Background:

Background:

Background:

on the subject of the provisions of recitation among students of the Islamic Sciences Colleges).

The researchers adopted the experimental method and chose an experimental design for the two equivalent groups by post-test. The research sample consisted of (60) male and female students from (second stage) - Department of Qur’an Sciences and Islamic Education - University of Diyala, and the two researchers were rewarded between the two groups of research in the following variables: (Chronological age calculated in months, degrees of recitation rulings subject in the previous year, the two researchers studied the same research groups, and lasted for an entire semester, the researchers prepared the observation card to measure the ru

تضمن البحث خمسة أبواب احتوى الباب الأول على مقدمة البحث وأهميته وتم التطرق إلى المجال التربوي والبرامج التعليمية إذ لابد إن يكون اختيار وتصميم البرامج التعليمية على وفق أسس علمية والاستفادة منها لتحقيق الأهداف التربوية وخاصة في مجال العاب القوى والوثب الطويل وتتجلى أهمية البحث من خلال استخدام هذا البرنامج وفق الخصائص المميزة على مؤشرات التعلم وانجاز الوثب ،إما مشكلة البحث فقد وجد الباحث أن المدرسين يحتا

Information about soil consolidation is essential in geotechnical design. Because of the time and expense involved in performing consolidation tests, equations are required to estimate compression index from soil index properties. Although many empirical equations concerning soil properties have been proposed, such equations may not be appropriate for local situations. The aim of this study is to investigate the consolidation and physical properties of the cohesive soil. Artificial Neural Network (ANN) has been adapted in this investigation to predict the compression index and compression ratio using basic index properties. One hundred and ninety five consolidation results for soils tested at different construction sites

The present study develops an artificial neural network (ANN) to model an analysis and a simulation of the correlation between the average corrosion rate carbon steel and the effective parameter Reynolds number (Re), water concentration (Wc) % temperature (T o) with constant of PH 7 . The water, produced fom oil in Kirkuk oil field in Iraq from well no. k184-Depth2200ft., has been used as a corrosive media and specimen area (400 mm2) for the materials that were used as low carbon steel pipe. The pipes are supplied by Doura Refinery . The used flow system is all made of Q.V.F glass, and the circulation of the two –phase (liquid – liquid ) is affected using a Q.V.F pump .The input parameters of the model consists of Reynolds number , w

Following model educational offenders in collection and Alasbaka of fifth grade students preparatory in history A. M. Dr Prepared by: Dr. Bashaer Mawloud Tawfeeq, The Center of Educational and Psychological Studies Baghdad University - There is no difference statistically significant at the 0.05 level of significance between the average scores of the following students studying using model and offenders and who are studying in the usual manner (traditional) in the collection - There is no difference statistically significant at the 0.05 level of significance between the mean scores for the following students studying using model and offenders and who are studying in the usual manner (traditional) in retention Find limits: Current search

هدف البحث إلى إعداد تمرينات خاصة باستخدام (وسائل تدريبية)، الغرض منها تطوير بعض المهارات الاساسية (مناولة، تهديف) في كرة القدم، من أجل استثمار أفضل الفرص المتاحة، من خلال المباريات، ومن ثم تسجيل عدد أكثر من الأهداف.

 وقد تحددت المشكلة في ضعف بعض المهارات الاساسية(مناولة، تهديف)، لدى اللاعبين الناشئين، بأعمار(17-15) سنة، وتم استخدام المنهج التجريبي لعينة تكونت من (20) لاعبا، من ناشئين نادي الشرطة الرياضي،

Jurisprudence of Imam women through Susan Book of blood money

التعريف بالبحث: تضمن هذا الباب المقدمه واهميه البحث حيث تم التطرق الى طرائق واساليب التربيه الرياضيه واهميه اعداد المعلمين حسب الطرق الحديثه والتقنيه لاساليب التدريس كما تم التطرق الى الاسلوب الدائري كأحداساليب التعلم والتي تؤكدعلى استخدام مايسمى بالمحطات والتي من خلالها يستقل الطالب في اتخاذ قرارته في بعض الاعمال ولاهمية هذا الاسلوب في تحقيق نتائج افضل في تعليم المهارات وتتحدد المشكلة للبحث في ان الاسل

Praise be to God, Lord of the Worlds, and prayers and peace be upon the Master of Messengers, Muhammad and his family

The good and pure and after his companions

God Almighty said: ( ) Do they not contemplate the Qur’an? If it had been from other than God, they would have found in it much discrepancy. God Almighty has made the well-being of people and their lives linked to faith in it. So what is the need of people today to return to the Book of their Lord so that they may return to the right path that God intended for His servants so that they may attain sustenance? Security and the good life. How could it not be, when many of the nations of the world no longer see security or stability because their leaders and politic