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Article
PREVALENCE OF INSTESTINAL PROTOZOAL INFECTION AMONG PATIENTS IN AL-DOUR HEALTHY CENTERS
انتشار الاصابة بالاوالي الطفيلية بين مرضى المراكز الصحية في قضاء الدور

Author: Ahmed jawad k.
Journal: AL-TAQANI مجلة التقني ISSN: 1818653X Year: 2011 Volume: 24 Issue: 7 Pages: 63-73
Publisher: Foundation of technical education هيئة التعليم التقني

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Abstract

This study which was started from (1/10/2006) to (1/10/2007) aimed to determine the rate of infection of the intestinal protozoa from patients in the healthy centers in Al-Dour city. Total stool samples (650) were examined and 160 (66.7%) was positive case for Entamoeba histolytica and 80 (33.3%) positive case for Giardia lambelia. All the stool samples were examined macroscopically with naked eye to observe the color, blood and mucus and microscopical examination (direct method) by using normal saline (0,85%) to determined trophozoits and cysts of E. histolytica and G. lambelia. In this study we used statistical analysis in order to assess and analyze the results which included the descriptive statistics (contingency tables, contingency coefficients and graphical presentation) and inferential statistics to accept or project the statistical hypothesis. The observed frequencies distribution discern that the both responding, (positive and negative) recorded the same results proportionally among the gender relatively, then followed by diagnosis sample single or double infection responding and two different distributed among both gender and then finally followed by the diagnosis sample (positive and negative) responding and different distributed of age groups of the studied samples . The observed frequencies distribution discern that the both responding, species (E. histolytica) and (G. lambelia) recorded the different in their distribution results among the infection status (single and double) infection relatively with a significant different, then followed by the studied species, the results showed that in male E. histolytica species decreases compared with the other species, while these results reversed in female in a highly obtained confidence and then finally followed by species (E. histolytica) and (G. lambelia) recorded the different in their distribution results among the different age groups relatively with high relative obtained confidence level .

هدفت الدراسة الحالية التي استمرت من 1/10/2006 لغاية 1/10/2007 الى تحديد نسبة الاخماج بالاوالي المعوية للمرضى في مركزين صحيين في قضاء الدور. تم فحص المجموع الكلي لعينات براز المرضى البالغة (650) عينة وظهر (160),(66.7%) حالة موجبة الاصابة لطفيلي المتحولة الحالة للنسيج و (80),(33.3%) حالة موجبة الاصابة لطفيلي الجيارديا لامبليا.فحصت جميع عينات الخروج للمرضى بالعين المجردة لملاحظة لون الخروج ووجود الدم والمخاط من عدم وجوده, كمافحصت العينات مجهرياً بأستخدام المحلول الملح الفزيولوجي (0.85%) (الطريقة المباشرة) لتشخيص الاطوار المتحركة والمتكيسة للطفيلين السابقين الذكر.في هذه الدراسة تم استخدام التحليل الاحصائي لتقييم وتحليل النتائج حيث شمل هذا التحليل كل من الاحصاء الوصفي والاحصاء الاستنتاجي لقبول او رفض الفرضية الاحصائية.ان معدل التوزيع التكراري يبين كلا الحالتين المستجيبتين للفحص ( الموجبة والسالبة) سجلت ان هناك علاقة وثيقة بين الجنس وعينات البحث، حيث ان نسبة الاصابة بالطفيليين المذكورين في البحث عند الذكور اكبر مما هي عليها عند الاناث. كذلك استجابة سالبة وموجبة لتوزيع الحالات المرضية في المجاميع العمرية المدروسة . كما اوضحت نتائج التوزيع التكراري بالنسبة للاجناس الطفيلية (اميبيا الزحار الا والجيارديا اللامبليا). ان هناك اختلاف واضح مع نتائج الاصابة (المفردة والمزدوجة), كما اوضحت ان الاصابة بطفيلي اميبيا الزحار الاميبي سجلت ارتفاعاً مقارنةً مع الانواع الاخرى, وبينما انعكست هذه النتائج في الاناث. واخيراً سجلت اميبيا الزحار النسيجي والجيارديا لامبليا اختلاف في التوزيع بين مختلف الاعمار.

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Article
Theoretical Calculations of the Electron Transport Parameters in CH4-Ar and CH4-Ne Mixtures Gases Using Monte Carlo Method
حسابات وظريه نمعاملات الاوتقال الانكترووي نخهيط غازي مه باستعمال طريقة مووتي كارنو (CH4-Ar) و (CH4-Ne)

Author: Enas Ahmed Jawad ايناس احمد جواد
Journal: Ibn Al-Haitham Journal For Pure And Applied Science مجلة ابن الهيثم للعلوم الصرفة والتطبيقية ISSN: 16094042/ 25213407 Year: 2017 Volume: 30 Issue: 1 Pages: 38-52
Publisher: Baghdad University جامعة بغداد

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Abstract

The result of concentration varying of mixture methane with argon and neon gas are believed to study the change in electrons energy distribution function and then the change of the electrons transport parameters including the drift velocity, the mean energy, characteristics energy and diffusion coefficient. In the present work,a contemporary developed computer, simulation program known as Bolsig+ is being used for calculating the electron transport parameters.

تاثير تراكيز المختلفه لخليط الميثان مع غاز الاركون والنيون تؤخذ بالحسبان في دراسه التغير في دالة توزيع طاقة الالكترون وبالتالي تغير في معاملات انتقال الالكترونات مثل سرعة الانجراف , متوسط الطاقة , خصائص الطاقه ومكافيء الانتشار . في العمل الحالي استعمل برنامج محاكاة كومبيوتر متطور وحديث لحساب معاملات انتقال الاكترون.


Article
EXISTENCE OF NONOSCILLATORY RELATIVELY BOUNDED SOLUTIONS OF SECOND ORDER NEUTRAL DIFFERENTIAL EQUATIONS

Authors: Hussain Ali mohamad --- Bashar Ahmed Jawad Sharba
Journal: Journal of Al-Qadisiyah for Computer Science and Mathematics مجلة القادسية لعلوم الحاسوب والرياضيات ISSN: 20740204 / 25213504 Year: 2019 Volume: 11 Issue: 2 Pages: Math Page 63-71
Publisher: Al-Qadisiyah University جامعة القادسية

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Abstract

In this paper some sufficient conditions are obtained to insure the existence of positive solutions which is relatively bounded from one side for nonlinear neutral differential equations of second order. We used the Krasnoselskii’s fixed point theorem and Lebesgue’s dominated convergence theorem to obtain new sufficient conditions for the existence of a Nonoscillatory one side relatively bounded solutions. These conditions are more applicable than some known results in the references. Three examples included to illustrate the results obtained.


Article
Approximation Solution of Nonlinear Parabolic Partial Differential Equation via Mixed Galerkin Finite Elements Method with the Crank-Nicolson Scheme

Authors: Marwa Ahmed Jawad --- Jamil Amir Al-Hawasy
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2019 Volume: 60 Issue: 2 Pages: 353-361
Publisher: Baghdad University جامعة بغداد


Article
Simulation of a Wet Sulfuric Acid Process (WSA) for Utilization of Acid Gas Separated from Omani Natural Gas
محاكاة لعملية أنتاج حامض الكبريتيك بالطريقة الرطبة (WSA) لاستغلال الغاز الحامضي المفصول من الغاز الطبيعي العماني

Author: Ahmed Jawad Ali Al-Dallal احمد جواد علي
Journal: Al-Khwarizmi Engineering Journal مجلة الخوارزمي الهندسية ISSN: 18181171 23120789 Year: 2013 Volume: 9 Issue: 3 Pages: 58-69
Publisher: Baghdad University جامعة بغداد

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Abstract

In this study, a proposed process for the utilization of hydrogen sulphide separated with other gases from omani natural gas for the production of sulphuric acid by wet sulphuric acid process (WSA) was studied. The processwas simulated at an acid gas feed flow of 5000 m3/hr using Aspen ONE- V7.1-HYSYS software. A sensitivity analysis was conducted to determine the optimum conditions for the operation of plant. This included primarily the threepacked bed reactors connected in series for the production of sulphur trioxidewhich represented the bottleneck of the process. The optimum feed temperature and catalyst bed volume for each reactor were estimated and then used in the simulation of the whole process for two cases namely 4 and 6 mole% SO2 stream fed to the first catalytic reactor. The 4mole% SO2 gaves the highest conversion (98%) compared with 6 mole% SO2 (94.7%). A valuable quantity of heat was generated from the process. This excess heat could also be transformed into power in a turbine or used as a heating media in neighbouring process units.

في هذه البحث، تمت دراسة عملية مقترحة لاستغلال كبريتيد الهيدروجين المفصول مع غازات أخرى من الغاز الطبيعي العماني لإنتاج حامض الكبريتيك بالطريقة الرطبة (WSA) . تم محاكات هذه العملية عند تدفق حجمي للغاز الحامضي بحدود 5000 m3/h باستخدام برنامج .AspenONE- V7.1- HYSYS . تم كذلك اجراء تحليل الحساسية لتحديد الظروف المثلى لتشغيل المصنع. وهذا يشمل في المقام الأول المفاعلات الثلاثة المحملة بالعامل المحفز والمربوطة على التوالي لإنتاج ثالث أكسيد الكبريت التي تمثل عنق الزجاجة بالنسبة للعملية. تم التوصل الى درجة الحرارة المثلى لتلقيم كل مفاعل على حدة وكذلك تحديد كمية العامل المحفز لكل المفاعل حيث تم أستخدامها لاحقا في محاكاة العملية برمتها لحالتين هما 4 & 6 mole% SO2 كتيار تغذية للمفاعل الأول. 4% SO2 أعطى أعلى نسبة تحول 89 ) ٪ ( مقارنة مع (94.7%) 6% SO2 تم توليد كمية معتبرة من الحرارة نتيجة للعمليات داخل الوحدة. ويمكن أيضا تحويل هذه الحرارة الزائدة الى طاقة داخل توربينات أو يمكن استخدامها في عمليات التسخين لوحدات مجاورة .


Article
Investigation of Sand Dunes Sedimentary Structures – Najaf Governorate – IRAQ

Authors: Thamer Abaas Al-Shammery --- Ahmed Jawad Al-Naji
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2019 Volume: 60 Issue: 1 Pages: 77-90
Publisher: Baghdad University جامعة بغداد

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Abstract

This research concerns with the study of the sand dunes sedimentary structuresin two areas from dunes field of Najaf governorate these are; 1)Al-Rahimiya and2)Ain Mazlun areas, where the first area consists from barchans, barchanoid, andnabkha dunes types, while the second area has the dome, longitudinal, nabkha, andsand sheet dunes types.The affected prevailing wind direction is obvious on the study area, where has theNW-SE bearing and the sedimentary structures were influenced by prevailing andlocal wind directions in studied areas.Many types of sedimentary structures recognized in the studied areas these are;cross stratification, ripple marks, slump (grain flow), adhesion structures, andbioturbation structures.The changes in parameters of the depositional environment, which influenced thedistribution or formed of special sand dunes sedimentary structures due to changesin climatic conditions at the time.

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Article
Mineralogical study of Sand Dunes Fields in Najaf Governorate, Southern Iraq

Authors: Ahmed Jawad Al-Naji --- Thamer Abaas Al-Shammery.
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2019 Volume: 60 Issue: 2 Pages: 239-254
Publisher: Baghdad University جامعة بغداد

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Abstract

AbstractThe purpose of the present paper is to define the minerals content in the Najaf Dunes fields and the origin of these sand sediments in the southwestern parts of Iraq. There are three types of dunes in this field were described, the barchan, longitudinal, and dome dunes and additional types e.g. Nabkha, Barchanoid ridges, and sand sheet dunes. The study area was divided into three areas according to the geographical position, and numerous samples were collected from this field.The mineralogical study consists from three methods these are; the first: separation of sand samples into the light and heavy minerals by heavy liquids,where performed on 30 samples. The second method; carbonate content performed on 60 samples, and the third method; X-ray diffraction performed on 20 samples.The light minerals contents composed from quartz, feldspar, and rock fragments, the rock fragments composed mainly of sedimentary, igneous, and metamorphic rock fragments. The heavy minerals are mostly composed from opaques minerals, chlorite group, garnet group, zircon, pyroxenes, amphiboles, epidotes, biotite, muscovite, tourmaline, kyanite, staurolite, rutile,and celestite.The heavy minerals analyses of all dunes, in three areas, show to the many source areas, these recent sediments and nearby older Sedimentary formations around the study areas, especially Dibidbba formation were the great influence from other geological formations. While the high percentages of carbonate content was obtained due to the presence of neighboring formations, which consists of limestone rocks (e.g. Dammam, Euphrates and Nfayil). And the present study shows a clear relation between the carbonate percentages and the grain size, as they increase with finer sizes.

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Article
Mineralogical study of Sand Dunes Fields in Najaf Governorate, Southern Iraq

Authors: Ahmed Jawad Al-Naji --- Thamer Abaas Al-Shammery.
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2019 Volume: 60 Issue: 2 Pages: 239-254
Publisher: Baghdad University جامعة بغداد

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Abstract

AbstractThe purpose of the present paper is to define the minerals content in the Najaf Dunes fields and the origin of these sand sediments in the southwestern parts of Iraq. There are three types of dunes in this field were described, the barchan, longitudinal, and dome dunes and additional types e.g. Nabkha, Barchanoid ridges, and sand sheet dunes. The study area was divided into three areas according to the geographical position, and numerous samples were collected from this field.The mineralogical study consists from three methods these are; the first: separation of sand samples into the light and heavy minerals by heavy liquids,where performed on 30 samples. The second method; carbonate content performed on 60 samples, and the third method; X-ray diffraction performed on 20 samples.The light minerals contents composed from quartz, feldspar, and rock fragments, the rock fragments composed mainly of sedimentary, igneous, and metamorphic rock fragments. The heavy minerals are mostly composed from opaques minerals, chlorite group, garnet group, zircon, pyroxenes, amphiboles, epidotes, biotite, muscovite, tourmaline, kyanite, staurolite, rutile,and celestite.The heavy minerals analyses of all dunes, in three areas, show to the many source areas, these recent sediments and nearby older Sedimentary formations around the study areas, especially Dibidbba formation were the great influence from other geological formations. While the high percentages of carbonate content was obtained due to the presence of neighboring formations, which consists of limestone rocks (e.g. Dammam, Euphrates and Nfayil). And the present study shows a clear relation between the carbonate percentages and the grain size, as they increase with finer sizes.

Keywords


Article
Extraction of Chlorophyll from Alfalfa Plant
أستخلاص الكلوروفيل من نبات الجت

Authors: Ali Khalid Khudair Al-Jomaily خالد خضير --- Ahmed Jawad احمد جواد علي --- Isam Kamal عصام كامل
Journal: Al-Khwarizmi Engineering Journal مجلة الخوارزمي الهندسية ISSN: 18181171 23120789 Year: 2006 Volume: 2 Issue: 1 Pages: 85-97
Publisher: Baghdad University جامعة بغداد

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Abstract

The extraction process of chlorophyll from dehydrated and pulverized alfalfa plant were studied by percolation method. Two solvent systems were used for the extraction namely; Ethanol-water and Hexane-Toluene systems . The effect of circulation rate, solvent concentration, and solvent volume to solid weight ratio were studied. In both ethanol water, and Hexane-Toluene systems it appears that solvent concentration is the most effective variable.

تم في هذا البحث دراسة عملية أستخلاص الكلوروفيل من الجت المجفف والمطحون بطريقة التغلغل. تم أستخدام نظامين من المذيبات للأستخلاص وهي منظومة أيثانول-ماء ومنظومة هكسان-تولوين . تم دراسة تأثير معدل التدوير، تركيز المذيب و نسبة حجم المذيب الى وزن المادة الصلبة المستخدمة . في كلا المنظومتين تم التوصل الى أن تركيز المذيب هو العنصر الأكثر تأثيرا.

Keywords

Chlorophyll --- Extraction --- Percolation --- alfalfa


Article
Photocatalytic decolorization of methylene blue dye by zinc oxide powder

Authors: Amjed Mirza Oda --- Ahmed Salih --- Salih Hadi , --- Ahmed Jawad --- et al.
Journal: Journal of University of Babylon مجلة جامعة بابل ISSN: 19920652 23128135 Year: 2014 Volume: 22 Issue: 9 Pages: 2515-2508
Publisher: Babylon University جامعة بابل

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Abstract

Photocatalytic decolorization of methylene blue dye (MB) in water has been investig -ated in an immersed UV light irradiation slurry photoreactor using zinc oxide (ZnO) as a semiconductor photocatalyst. The effects of different parameters such as initial dye concentration, photocatalyst loading, and pH of solution on the decolorization rate of MB have been systematically investigated. A two-stage photocatalytic decolo -rization of MB, the first stage of fast decolorization rate and the subsequent second stage of rather slow decolorization rate, was found. The efficiency of decolorization of MB increased as initial MB concentration decreased. There was the optimal ZnO concentration being around 1500 mg L−1. The optimal pH was around 7 where reaction rate decreased above and under this pH value.

الإزالة اللونية المحفزة ضوئيا لصبغة المثيلين الأزرق في الماء تم اختبارها بواسطة مفاعل ذو إشعاع فوق بنفسجي باستعمال اوكسيد الزنك كشبة موصل محفز ضوئيا. تأثير العوامل في العملية كتركيز الصبغة الابتدائي ، وتركيز العامل المساعد ، والدالة الحامضية على الإزالة اللونية تمت دراستها باستخدام هذا المفاعل .وجدت مرحلتين للإزالة اللونية المحفزة لصبغة المثيلين الأزرق ، الأولى هي الإزالة اللونية السريعة ويعقبها المرحلة الثانية نوعا ما تكون بطيئة. ان كفاءة الإزالة اللونية للصبغة تزداد كلما قل التركيز الابتدائي لها . ووجد أن أفضل تركيز لأوكسيد الزنك هو 1500 ملغم لتر-1 . ووجد أن أفضل دالة حامضية حوالي 7 حيث تقل سرعة التفاعل فوق واقل من هذه القيمة .

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