This study examined the adsorption behavior of anionic dye (orange G) from aqueous solution onto the raw and activated a mixture of illite, kaolinite and chlorite clays from area of Zorbatiya (east of Iraq).The chemical treatment involved alkali and acid activation. The alkali activation obtained by treated the raw clay (RC) with 5M NaOH (ACSO) and the acid activation founded by treated it with 0.25M HCl (ACH) and 0.25M (ACS). The thermal treatment carried out by calcination the produce activated clay at 750oC for acid activation and 105oC for alkali activation. Batch
... Show Moreلدراسة تاريخ أي موضوع من المواضيع هو بمثابة فتح نوافذ الماضي والاطلاع على نشأته وتطوره خلال مراحل التاريخ ولعبة الجمناستك هي احدى الالعاب الرياضية المهمة وتأتي اهمية دراسة التطور التاريخي لقانون لعبة الجمناستك الفني للرجال لكونه يعد الحدث الاهم في تغير مسيرتها وكان اختيار عام (1949) وهو اصدار اول قانون تحكيم دولي لها والمتكون من اثنتا عشرة صفحة تضمنت هذه الدراسة مقدمة ومبحثين وخاتمة،المبحث الأول تضمن الاتح
... Show MoreThe issues of journalists and media employees in general and photojournalists in particular have become important issues, especially as those issues are closely linked to the success or failure of the media process.
This research deals with (the issues of Iraqi photojournalists working in local and foreign institutions in Iraq - a case study in 2012), because of the ambiguity in identifying those issues, which focused on the issues of this research.
This was done through the research community of members of the Association of Iraqi photojournalists in Baghdad exclusively of (64) photographers and television photographers to identify the problems encountered in their work
... Show MoreThe research aims at measuring the impact of visual media on the development of the tourism services sector, which is a field study for the public. It aims at determining the impact of visual media on tourism sector development, clarifying the concept of visual media and its functions and studying the role of media in the development of tourism culture among the public. For a sample of the employees of the University of Baghdad, consisting of (120) male and female. A questionnaire was prepared for this purpose consisting of (21) questions distributed to the sample. The data were analyzed and the hypotheses were tested using the statistical program spss to unload the results and calculate the frequencies, percentages and correlati
... Show MoreJoseph Curtis wrote in his book (Introduction to Semiotics narrative and rhetoric) on the development of a semiotic project in exploring the meaning of communion. The book is rich in theoretical and analytical benefits both in the approach of texts and in the pursuit of letters in search of mechanisms of scriptural and scriptural generation and mechanics in narrative production, especially as the book offers exercises that help to assess the distance separating the narrative spread from the sin of the text, for the semiotics, Refers to the theoretical developments of the science of relations, through the combination of conventional definitions and the representative and comparative limitations, to provide an approach to the application o
... Show MoreA high sensitivity, low power and low cost sensor has been developed for photoplethysmography (PPG) measurement. The PPG principle was applied to follow the dilatation and contraction of skin blood vessels during the cardiac cycle. A standard light emitting diodes (LEDs) has been used as a light emitter and detector, and in order to reduce the space, cost and power, the classical analogue-to-digital converters (ADCs) replaced by the pulse-based signal conversion techniques. A general purpose microcontroller has been used for the implementation of measurement protocol. The proposed approach leads to better spectral sensitivity, increased resolution, reduction in cost, dimensions and power consumption. The basic sensing configuration prese
... Show MoreThe paper presents an original method to make the geometric synthesis of the rotary cam and translated tappet with roll. Classical method uses to the geometric synthesis and the reduced tappet velocity, and in this mode the geometric classic method become a geometric and kinematic synthesis method. The new geometric synthesis method uses just the geometric parameters (without velocities), but one utilizes and a condition to realize at the tapped the velocities predicted by the tapped movement laws imposed by the cam profile. Then, it makes the dynamic analyze for the imposed cam profile, and one modify the cam profile geometric parameters to determine a good dynamic response (functionality). In this mode it realizes the dynamic synthesis
... Show MoreIn this paper, we study and introduce two new concepts in module theory: semi-coessential submodules and semi-coclosed submodules. These notions are generalizations of the classical concepts of coessential and coclosed submodules and aim to provide a broader framework for analyzing module structures. We investigate the main properties of these submodules and examine their relationships with coessential and coclosed submodules. Several characteristics associated with these ideas are explored, including conditions under which a submodule can be considered semi-coessential or semi-coclosed. The definitions are formulated in terms of factor modules and the semi-small condition, allowing a sy
... Show Moreيتناول هذا البحث وصف مدينة بغداد كما ورد في رحلة الرحالة الأندلسي ابن جبير (ت614هـ/1217م) خلال زيارته لها عام 580هـ /1184م، من خلال دراسة تاريخية تحليلية نقدية. يستعرض البحث السياق التاريخي لبغداد في عهد الخليفة الناصر لدين الله، موضحاً الأوضاع السياسية والإدارية التي شهدت انتعاشاً ملحوظاً، والأوضاع الاقتصادية التي تميزت بازدهار الزراعة ورخص الأسعار، إلى جانب الأحوال الاجتماعية والدينية والثقافية. كما يقدم البح
... Show Moreيقوم البحث على تقديم قراءة شمولية لـ(العلة النحْوية) ونماذج تطبيقاتها وتعليلها في كتاب (غاية الأمل في شرح الجمل). فإنَّ النحْو العربي قد اثبتَ وعلى مر العصور أنَّه أصبحَ علامة فارقة في الساحة المعرفية ، وميدان البحث اللغوي وذلكَ عن طريق أعلام كبار أثْرَوا المكاتب العربية ، وغير العربية بالمصنفات والمؤلفات ، منهم من كانَ ذيِّع الصيت : كالخليل، وسيبويه،والمُبِّرد،والزجاجي، وابن مالك. ومنهم من أُهملَ طي ال
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In this work, plasma spectroscopy was used to measure the plasma parameters of a negative spark discharge in a cylindrical electrostatic precipitator (ESP) from spectral data (electron density ne, electron temperature Te, plasma frequency, and Debye length). The characteristics of the spark-type plasma discharge were characterized using photoemission spectroscopy (PES), and the effect of varying the voltage on the discharge characteristics was investigated using voltages of 15, 20, and 25 kV and a pressure of 252 Torr. The Stark dilation method was used to calculate the electron number density, while Boltzmann diagrams were used to calculate the electron temperature. The results show that increasing the voltage increases the e
... Show MoreIn this research, the influence of the fermentation treatments and baking in Iraqi’s flour type (Ibaa 99, Al-rashed, Tamus, Abu-grabe) and Turkish flour type (Muaamel) on phytic acid was investigated. In whole wheat flour, the phytic acid was (1500, 1290, 1450, 1230, 1440 ( mg/ 100 g flour respectively, and the inorganic phosphorous was (29.18, 25.15, 23.89, 20.85, 22.83) mg/100 g flour respectively. The dough prepared from flour with a higher phytic acid content also contained higher amount of phytic acid. During fermentation, degradation of phytic acid occurred. The cumulative loss of phytic acid after fermentation in all type of dough was ~ 23, 22, 34, 26 and 27% respectively،While increased of inorganic phosphorous occurred. The c
... Show MoreIn this research, production of ethanol from waste potatoes fermentation was studied using Saccharmyses cerevisiae. Potato Flour was prepared from potato tubers after cooking and drying at 85°C. Homogenous slurry of potato flour was prepared in water at solid liquid ratio 1:10. Liquefaction of potato flour slurry with α-amylase at 80°C for 40 min followed by saccharification with glucoamylase at 65°C for 2 hr .Fermentation of hydrolysate with Saccharomyces cerevisiae at 35°C for two days resulted in production of 33 g/l ethanol.
The parameters studied were; temperature, time of fermentation and pH. It was found that Saccharification process is affected by enzyme Amylo 300 conc
... Show MoreGraphene oxide (GO) with zinc oxide nanoparticles (ZnO NPs) was synthesized using sol-gel and spin-coating procedures. This study aims to assess the antibacterial properties of ZnO-GO nanocomposites produced by spin coating with varying GO concentrations. So, different concentrations of GO NPs (10%, 30%, and 50%) were added to ZnO to assess the antibacterial activity. Structural and morphological properties of ZnO-GO were characterized using X-ray diffraction, field-emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy, and atomic force microscopy. The crystalline size of the pure ZnO NPs decreases with the increase of GO concentration, and the average crystalline size is 32.875 nm. The FESEM images showed
... Show MoreThe present study aims to elucidate the histological organization of the glandular stomach in two mammalian species exhibiting different feeding habits: (i) an herbivorous rodent, i.e., the Persian squirrel (Sciurus anomalus); and (ii) a carnivorous mammal, i.e., the small Asian mongoose (Urva auropunctata). Histological sections (n = 5) were taken from both groups and stained with hematoxylin and eosin (H&E), Alcian blue-PAS stain, and Masson’s trichrome, then microscopic examination was carried out distinct structural adaptations in the gastric mucosa, submucosa, muscularis, and serosa layers could be observed. The squirrel stomach exhibited a moderately thick mucosal layer with abundant mucus-secreting cells, a
... Show MoreIn this paper, the human robotic leg which can be represented mathematically by single input-single output (SISO) nonlinear differential model with one degree of freedom, is analyzed and then a simple hybrid neural fuzzy controller is designed to improve the performance of this human robotic leg model. This controller consists from SISO fuzzy proportional derivative (FPD) controller with nine rules summing with single node neural integral derivative (NID) controller with nonlinear function. The Matlab simulation results for nonlinear robotic leg model with the suggested controller showed that the efficiency of this controller when compared with the results of the leg model that is controlled by PI+2D, PD+NID, and F
... Show MoreThis study was conducted in order to statement the effect of ginger (Zingiber officinale) extracts in reducing the presence of the bacterium Salmonella typhimurium in some foods products.
Qualitative disclosures effective chemical compounds (alkaloids, flavonoids, phenols, tannins, terpenes) showed that the extracts of ginger an effective compounds as follows: oil extract and fresh juice> aqueous extract warm> aqueous extract cold. And studied the impact extract of fresh ginger juice, hot water ,cold water and oil rates extracts (1,2,3)% in bacteria test has shown that all s of extracts clear impact inhibition has oily extract of ginger recorded the highest value to inhibition zone reaching 35 mm when the concentration of 3%, f
تم تحضير مشتقات جديدة من الحلقات الملتحمة ثنائية الحلقات المحتوية على ذرة نتروجين جسريه imidazo/ benzothiazole من تفاعل 2-أمينوبنزوثيازول مع برومو فنيل فينيسايل برومايد لتشكيل المركب A1. بعد ذلك ، من خلال تفاعل مانخ ، تم تحضير المركب A2 من المركب A1 مع الفورمالديهايد و بارا امينو استو فينون. تم تحضير
... Show MoreA new mathematical model describing the motion of manned maneuvering targets is presented. This model is simple to be implemented and closely represents the motion of maneuvering targets. The target maneuver or acceleration is correlated in time. Optimal Kalman filter is used as a tracking filter which results in effective tracker that prevents the loss of track or filter divergency that often occurs with conventional tracking filter when the target performs a moderate or heavy maneuver. Computer simulation studies show that the proposed tracker provides sufficient accuracy.
تكمن أهمية البحث في دراسة حركة الذراعين وضربات الرجلين من خلال معرفة تأثيرها بالأداء وبين سباح وأخر، وتبلورت مشكلة البحث في الفوارق بين مستوى تطور الأرقام القياسية العراقية وبين المستوى العربي في فعاليات السباحة عامة وسباحة الفراشة خاصةً والتي لا زالت لا تواكب مستوى الإنجاز الرقمي، وهدفت الدراسة الى تحليل سباحة الفراشة مع علاقتها بإنجاز (50)م وذلك للوصول إلى نتائج ايجابية قد تساهم في كسر الأرقام العراقية
... Show Moreالقفز بالزانة ىي إحدى فعاليات ألعاب القوى ومن فعاليات الوثب والقفز األربعة في سباقات ألعاب المضمار
والميدان, وىي مسابقات عمودية تتغمب فييا المركبة العمودية عمى المركبة االفقية بشكل كبير جدا, وتعتبر األكثر تعقيدا
وصعوبة من حيث األداء والتكنيك الخاص بيا, فضالً عن دخول حاجز الخوف والخطورة في ممارستيا, والذي يستخدم
الالعب زانة )عصا( ليدفع جسمو فوق حاجز مستعرض مقام عمى ارتفاع معين, وأولى الصعوبات تتمثل في م
هدفت الدراسة إلى تصنيف عينة البحث إلى أربع مجموعات (مجموعتين ضابطة، ومجموعتين تجريبية)، إذ إن المجموعة الضابطة تتكون من (8) لاعبين من أسلوب التفضيل المعرفي (التحليلي)، و(8) لاعبين من أسلوب التفضيل المعرفي (الشمولي) فتأخذ المجموعة الضابطة المنهج التدريبي المتبع من قبل المدرب، إضافة إلى المجموعة التجريبية وكذلك تتكون من (8) لاعبين من أسلوب التفضيل المعرفي (التحليلي)، و(8) لاعبين من أسلوب التفضيل المعرفي(الشمولي) أ
... Show MoreThis study aimed to evaluate the occurrence of microbial contamination in food keeping freezers in some local markets in Baghdad city/ Iraq, as well as the contamination of the hands of workers in markets, and the possibility of contamination caused by the transport of food. 30 samples of snow ice found in food keeping freezers in local markets was randomly collected, and 30 swabs from workers hands were taken from the same markets at the same time. Microbiological examination of ice samples was conducted as well as the hands of workers’swabs, and the bacteria were isolated and diagnosed through microbiological and biochemical tests followed. Microbial test results showed some isolates of bacteria in ice samples obtained from food keep
... Show MoreA microbial study conducted for a number of flour samples (30 samples) Uses in the bakery ovens in various areas of the city of Baghdad, by used the conventional methods used in laboratories in microbial tests and compared with the modern techniqueby usedof BacTrac Device 3400 equipped from SY-LAB Impedance analysersAustrian company.The results of two ways showed (The conventional way and BacTrac Device test)that the total counts of aerobic bacteria, coliform bacteria, StaphylococcusSpp. bacteria, Bacillus cereus bacteria and yeasts and molds,Most of them were within the permissible borders in the Iraqi standard for grain and its products With free samples from SalmonellaSpp. bacteria, and that the screening by BacTrac device are shorten
... Show Moreتطرق البحث الى استعمال الشرط عند شعراء التنوير بعده أسلوباً متكونا من جملتين منصهرتان في جملة واحدة لتؤدي معنى في ذهن الشاعر وهي جلها عبارة عن نصح وارشاد لما سيواجه المتلقي في المستقبل القريب إذ إن الشاعر التنويري يعمل على تحسين المستقبل القريب ليكون بعد ذلك التوجه نحو البعيد فالأبعد وقد عالج البحث أسلوب الشرط وفقا للمنهج الأسلوبي في تحليل النصوص الذي يعتمد دراسة الامكانات اللغوية المتاحة من بين مجموعة من
... Show Moreان القصص القرآنية تقدم دروساً عظيمة في استثمار الفرصة من خلال دراسة حياة الأنبياء والصالحين وكيف كانوا قادة ودعاة واغتنموا اللحظات الحاسمة بتوفيق الله تعالى.
ويبين لنا القرآن الكريم أن العاقل هو من يقرأ الأحداث بعين الإيمان فيحول الابتلاءات الى انطلاقات جديدة لتغيير سيرة حياة كاملة، وأن الفرصة لا تأتي دائماً بشكل مريح وهادئ لابد من مصاعب وابتلاءات فكل موقف في القصص القرآني هو دعوة للتفكير في اللحظة ال
... Show Moreلقد أبدع السومريون في كتاباتهم، حيث أمدتنا التنقيبات الأثرية بالعديد من أنواع النصوص المسمارية، حيث ان تلك النصوص أخذت أشكالاً ومضامين مختلفة تداخلت في كل نواحي الحياة، منها الاقتصادية والدينية والتاريخية وغيرها والتي من خلالها استطعنا رسم صورة عن تاريخ السومريين وأفكارهم .
ومن خلال هذا البحث حاولنا تسليط الضوء عن جانب من الكتابات الملكية المسمارية على المخاريط الفخارية والتي تعتبر أيضاً نوعاً من أن
... Show Moreبعد قراءة ديوان الشاعر ابن دُنَيْنير، وجدنا أنَّ النصَّ الشعريَّ عنده يقوم على بعض الجزئيات، وكان المحتمل والمستحيل أهم هذه الجزئيات، فقد مثَّلت ارتباطاً قوياً في روحية الشاعر، وانعكست في قصائده، لها أسبابها وأساليبها ونتائجها، فالمحتمل يمثل تطلعات الشاعر وآماله، في خضمِّ المستحيلات التي تحيط به، وتواجهه وتحيل حياته إلى بقايا ركام، وهما امتزاج بين الواقع والخيال، فالمحتمل أداةُ وصلٍ بين وجدان الشاعر وا
... Show Moreتعد كتب التراجم ذات اهمية بالغة في تدوين الاحداث التاريخية للمترجم له . فهذه التواريخ توضح لنا ذلك التفاعل الكبير بين صاحب الترجمة والاحداث السياسية والقوى الادارية والاقتصادية مبينة اهمية الدراسة ومدى عمقها واهميتها في الفترة الزمنية التي كانت يتعايش فيها المؤرخ ويتفاعل معها .وتبدوا اهمية الدراسة التاريخية في كتب التراجم والسير المفردة على اهمية المؤرخ واتصاله الشخصي . بما يؤهله بمكانته
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