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 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 MoreA novel metal complexes Cu (II), Co (II), Cd (II), Ru (III) from azo ligand 5-((2-(1H-indol-2-yl)
ethyl) diazinyl)-2-aminophenol were synthesized by simple substitution of tryptamine with 2-aminophenol.
Structures of all the newly synthesized compounds were characterized by FT IR, UV-Vis, Mass spectroscopy
and elemental analysis. In addition measurements of magnetic moments, molar conductance and atomic
absorption. Then study their thermal stability by using TGA and DSC curves. The DCS curve was used to
calculate the thermodynamic parameters ΔH, ΔS and Δ G. Analytical information showed that all complexes
achieve a metal:ligand ratio of [1:1]. In all complex examinations, the Ligand performs as a tri
Nanosilica was extracted from rice husk, which was locally collected from the Iraqi mill at Al-Mishikhab district in Najaf Governorate, Iraq. The precipitation method was used to prepared Nanosilica powder from rice husk ash, after treating it thermally at 700°C, followed by dissolving the silica in the alkaline solution and getting a sodium silicate solution. Two samples of the final solution were collected to study the effect of filtration on the purity of the sample by X-ray fluorescence spectrometry (XRF). The result shows that the filtered samples have purity above while the non-filtered sample purity was around The structure analysis investigated by the X-ray diffraction (XRD), found that the Nanosilica powder has an amorphous
... Show MoreTwo homopolymeric and three copolymeric additives for base oil were synthesized using octyl acrylate (OA) and tert-butyl acrylamide (TBA) monomers. The two additives named P1 and P2 are the homopolymers of TBA and OA, respectively, whereas copolymeric additives named Co1, Co2, and Co3 were synthesized by varying the ratios of TBA:OA as 1:3, 3:1 and 1:1, respectively. The prepared polymers were characterized by Fourier Transform Infrared (FTIR). Based on the solubility of synthesized polymers in base oil and reactivity ratios of TBA/OA copolymer (0.222, 0.434) calculated by Fineman-Ross method, P2, Co1, Co2 and Co3 were selected to evaluate their performance as pour point depressant (PPD), viscosity improver (VII), and anticorrosion addit
... 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
... Show MoreAbstract
This work deals with a numerical investigation to evaluate the utilization of a water pipe buried inside a roof to reduce the heat gain and minimize the transmission of heat energy inside the conditioning space in summer season. The numerical results of this paper showed that the reduction in heat gain and energy saving could be occurred with specific values of parameters, like the number of pipes per square meter, the ratio of pipe diameter to the roof thickness, and the pipe inlet water temperature. Comparing with a normal roof (without pipes), the results indicated a significant reduction in energy heat gain which is about 37.8% when the number of pipes per m
... Show Moreالمستخلص:
إن من أهم عوامل نجاح أي مؤسسة (سواء كانت مؤسسة تعليمية أم غيرها من المؤسسات) هو التخطيط الاستراتيجي السليم المبني على أساس علمي ونظام واقعي متكامل بعيداً عن التخمين والحدس.
تتمثل مشكلة البحث بوجود تفاوت بين أعداد الطلبة المقبولين فعلاً والطلبة المخطط قبولهم في الدراسات الأولية بكلية الإدارة والاقتصاد بجامعة بغداد في كل عام دراسي حيث غالباً كانت أعداد الطلبة المقبولين فعل
... Show Moreإن عمليات نقل وزرع الأعضاء البشرية هي نوع من أنواع الأعمال الطبية، ولذلك فهي تخضع بصفة عامة لذات القواعد التي تحكم الأعمال الطبية، وقد نظمها المشرع عن طريق وضع الضوابط أو الشروط التي تكفل لتلك الممارسات عدم الخروج عن إطارها القانوني المحدد لها بالشكل الذي يضمن المحافظة على الجسم الإنسان واحترام كرامته. وقد أكد المشرع العراقي في قانون عمليات زرع الأعضاء البشرية ومنع الاتجار بها رقم (11) لسنة 2016 على حظر
... Show Moreملخـــص البحــــث
من القضايا المهمة في الفقه الاسلامي قضية الاصلاح الاجتماعي ومنها النظر في المرافق العامة، والالتفات إلى تحمل المسئولية فيها ورعايتها، حتى تتحقق الغاية في منافعها، وحسن الاستفادة منها، ومن المرافق العامة، الطريق العام ــ وهو النافذ ــ فلجميع الخلق أن ينتفع به ، ومنفعتها الأصلية المرور فيه بما لا يضر الآخرين.
وإن من الواجب على جميع المسلمين أ
... Show More