This research work involves the preparation of nano activated carbonand macro activated carbon from corn seeds with a various mixing ratio ofpotassium hydroxide (1:0, 1:0.2, 1:0.4, 1:0.6, 1:0.8 and 1:1) % using thermaland micro radiation carbonization to identify the best mixing ratio. At studyto confirmed that the efficiency and effectiveness of the prepared of activatedcarbon samples increase when ratio potassium hydroxide increase with athermal and micro radiation carbonization was used. The study of samplesexternal surface area was performed via studying the adsorption of methyleneblue from their aqueous solution, also measured the internal surface area wasperformed via studying the adsorption of iodine from their aqueous solution.Measurement of density and humidity content were also been studied. Todetermine the efficiency and effectivity prepared samples. The samples werecharacterized by atomic force microscope (AFM), scanning electronmicroscopy (SEM)
The method of powder technology has been utilized in fabrication of machinable
ceramics by the approach of glass-ceramic principles. The crystalline ceramic phases
partially dissolved by host glass while the undissolved part remain responsible for the
machinability by the usual cutting tools. Thus avoiding the unnecessary use of special
dies to cast fully melted composition and initiate recrystallization process. Two types of
machinable ceramics have been successfully prepared, the first with high silica content
and the other with high alumina content. A comparison of their properties and discussed.
يتناول هذا الموضوع تحليلًا لظاهرة وفيات الأمهات في الوطن العربي خلال الفترة من 1990 إلى 2023، مع التركيز على الأسباب الرئيسية لهذه الوفيات، والعوامل الاجتماعية والاقتصادية والصحية التي تسهم في تفاقمها. يهدف الموضوع إلى تسليط الضوء على التحديات التي تواجهها الدول العربية في تحسين صحة الأمهات، وتقييم التقدم المحرز نحو تحقيق أهداف التنمية المستدامة المتعلقة بخفض معدلات وفيات الأمهات.. تم استخدام المنهج الوصفي و
... Show Moreيهدف البحث الى بيان اثر تقييم المشاريع الاستثمارية في تطوير واعداد الموازنات الاستثمارية المعدة من قبل الوحدات الاقتصادية حيث ان المشاريع الاستثمارية تعد ذات طابع مهم وحيوي للوحدات الاقتصادية وذلك لما تتضمن هذه المشاريع من طول الفترة الزمنية للاعدادها وتنفيذها ولما يرافق هذه الفترة من مخاطر وعدم تأكد وكذلك احتياجها الى اموال كثيرة لأنجاز المشروع, فأن عملية تقييم المشاريع المنفذة والتي تم اعداد موازنة
... Show MoreThe aim of this study tousethree remedial method to the learning for mastering which :(learning for mastery incooperative small groups)and style (Re teaching using presentations by PowerPoint ), and style (homeworklearning by Microsoft word ) to in learning Movement Concatenation On Horizontal Bar in artistic gymnastics for men, as the aim of the research to identify any better methods to learn the movement in question , use the the experimental method to design with pretest and posttest equal totals , the subject of the study included on students second class in physical education and sport sciences , Baghdad University (2014-2015) ,The species used the specific manner by lot for selection , the subject divided into three empirical groups
... Show Moreالمستخلص: تناول البحث الحالي " علاقة العوامل الحرجة لنقل المعرفة في فرص النجاح الاستراتيجي " إذ يحظى موضوعيّ نقل المعرفة والنجاح الاستراتيجي باهتمام متزايد لكونهما من الموضوعات المهمة والمعاصرة، والتي لها تأثير كبير على وجود المنظمات ومستقبلها. ويهدف البحث الى الوقوف على العوامل الحرجة لنقل المعرفة في بيئة التعليم الأهلي العالي والتي تُمكن ( الكليات الأهلية المبحوثة ) من تحقيق نجاحها الاستراتيجي وقد سعى الب
... Show MoreThe research aims to identify the reality of administrative motivation for the deans of the faculties of physical education and sports sciences at the universities of Baghdad and Al-Mustansiriya from the point of download of the faculty members. The number of the exploratory sample was (7) faculty members, they were taken in a random way, while the rest of the sample number was (150) faculty members who considered the application sample for the scale, and the two researchers also adopted a questionnaire for the scale and it is applied to the Iraqi environment. phrase, which are phrases that are interrelated with the administrative leadership motivation in the faculties of physical education and sports sciences. The researchers did not make
... Show MoreAbstract
Objective(s): To evaluate the nurses` practices for children who diagnosed with febrile convulsion.
Methodology: A quantitative research, descriptive correlational design was used in this study, the study conducted on nurses who work in Al-Diwaniya Pediatrics Teaching Hospital-Iraq for Maternal and Children period from 12th September 2021 to 10th October 2022. A non- probability (convenience) sample has been applied to obtain the study goals. The study sample was (21) nurses who participate in the study. The study tool is composed of two parts: The first part is concerned with collection of nurses socio-demographic data obta
... Show MoreThe objective of this paper was to study the laser spot welding process of low carbon steel sheet. The investigations were based on analytical and finite element analyses. The analytical analysis was focused on a consistent set of equations representing interaction of the laser beam with materials. The numerical analysis based on 3-D finite element analysis of heat flow during laser spot welding taken into account the temperature dependence of the physical properties and latent heat of transformations using ANSYS code V.10.0 to simulate the laser welding process. The effect of laser operating parameters on the results of the temperature profile were studied in addition to the effect on thermal stresses and dimensions of the laser w
... Show Moreيعدُّ التفسير المقارن لوناً من الوان التفسير إذ إن الباحث في هذا اللون تتحصل له ملكة التفسير من جملة العلوم المختلفة من لغة ومأثور ونحو وبلاغة, وغيرها من علوم القرآن، وملكة المقارنة بين أقوال المفسرين والوقوف على مواطن اتفاقهم واختلافهم وبيان ما يمتاز تفسير كل منهم، على اختلاف معارفهم وثقافاتهم وبيئاتهم، ولهذا اخترنا أن يكون عنوان هذا البحث: ((مواطن الاتفاق والاختلاف بين ابن عطية والرازي من خلال
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