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Article
Measurement of Percentage Depth Dose (PDD) for 6 MeV in water phantom and homogenous actual planning
قياس نسبة الجرعة العميقة (PDD) للطاقة (6 MeV) لوسط مائي مع التصميم العلاجي الحقيقي المتجانس للمرضى

Authors: Raghdah H. Hasan رغده حارث حسن --- Samar I. Essa سمر عمران عيسى --- Manwar A. AL-Naqqash منور عبدالاله النقاش
Journal: Iraqi Journal of Physics المجلة العراقية للفيزياء ISSN: 20704003 Year: 2018 Volume: 16 Issue: 37 Pages: 1-6
Publisher: Baghdad University جامعة بغداد

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Abstract

Radiotherapy is the branch of clinical medicine concerned with the application of ionizing radiation in the treatment of disease. And it is used to killing of cancer cells in a tissue using ionizing radiation while keeping the sparing of healthy cells at acceptable level. X-ray beams are used to deposit absorbed dose at depth within a patient at the site of the tumor. The aim of this work is studying the relationship between the depth dose and the field size in water phantom and homogenous actual planning. In our work, the dose distribution at different depths (zero-18 cm) deep at1cm interval treated with field size (10×10 and 20×20) cm2 were studied.Results show that high similarity between water phantom and actual planning for this reason water is taken as phantom for Quality Assurance (QA) and calculation the depth dose. When increasing the field size, the percentage of surface dose increases that this could be caused by an increase of the amount of scattering in the larger fields. Conclusion: There is almost no difference in depth dose between homogenous planning and water phantom.

العلاج الإشعاعي هو فرع من فروع الطب السريري المعنية بتطبيق الإشعاعات المؤينة في علاج المرض. ويستخدم الإشعاع المؤين لقتل الخلايا السرطانية في الأنسجة مع الحفاظ على الخلايا السليمة عند مستوى مقبول. ويستخدم شعاع الأشعة السينية لترسيب الجرعة الممتصة في العمق داخل المريض في موقع الورم. الهدف من الدراسة هو دراسة العلاقة بين جرعة العمق والحجم في الوسط المائي والتصميم العلاجي المتجانس للمرضى تم دراسة توزيع الجرعة في أعماق مختلفة (0 - 18 سم) وللحجم (10 × 10 و 20 × 20) سم2.أظهرت النتائج التشابه الكبير بين الوسط المائي والتصميم العلاجي للمرضى لذلك تم استخدام الماء لحساب جرعة العمق. عند زيادة الحجم فان نسبة جرعة الأشعة تزداد على السطح وهذا يمكن أن يكون ناجما عن زيادة كمية تشتت الأشعة في الاحجام الكبيرة. من هذا البحث تم الاستنتاج انه لا يوجد تقريبا أي فرق في جرعة العمق بين التخطيط الفعلي المتجانس للمرضى والوسط المائي.


Article
Depth Image Extraction using Adaptive K-Means Clustering Algorithm
استخلاص عمق الصورة باستخدام خوارزمية Adaptive K-Means

Authors: Sanaa Sh. Ahmed سناء شهاب احمد --- Hasanen S. Abdullah حسنين سمير عبدالله
Journal: Al-Ma'mon College Journal مجلة كلية المامون ISSN: 19924453 Year: 2018 Issue: 32 Pages: 290-303
Publisher: AlMamon University College كلية المامون الجامعة

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Abstract

This work presents a proposed approach to extract depth map of stereoscopic images depended on segmentation of lightness values of pixels ‘L’ using adaptive K-Means cluster. The proposed approach finds the disparity map of segmentation lightness pixels and refines those segment by using morphological filtering and connected components analysis. Experimental results from Middlebury dataset show that the proposed approach performs good results in term of accurate depth and time consuming compared with classical Sum of Absolute Difference (SAD) approach and SAD with Gradient Difference (GRAD) algorithm.

إن هذا العمل يمثل خوارزمية مقترحة الى استخلاص عمق الصورة بالنسبة للصور Stereoscopic اعتمادا على تقطيع النقاط المضيئة باستخدام خوارزمية Adaptive K-Means . حيث تم ايجاد خريطة التباين لتقطيع النقاط المضيئة وتحسين هذه القطع باستخدام morphological filter وتحليل المكونات المترابطة .حيث اثبتت النتائج باستخدام Middlebury Dataset ان الخوارزمية المستخدمة تعطي نتائج جيدة بمصطلح العمق الدقيق للصورة والوقت المستغرق للتنفيذ مقارنة مع طريقة SAD التقليدية وطريقة SAD with GRAD algorithm


Article
Salivary Matrix Metalloproteinase-8 (MMP-8) in Relation to Periodontal Health Status Among a Group of Hypertensive Patients

Authors: Eman Zuhair AlMudaris --- Nadia Aftan AlRawi
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2018 Volume: 30 Issue: 3 Pages: 48-53
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Hypertension is probably the most important public health problem around the world. People with periodontal disease may be at greater risk of hypertension. The inflammatory effects of periodontal disease help to promote endothelial dysfunction in arteries which may lead to changes in blood pressure. Salivary MMP-8 has been associated with both periodontal disease and prevalent hypertension.Aim of study: This study was conducted to measure salivary matrix metalloproteinase - 8, in relation to periodontal health condition among a group of patients with hypertension in comparison with control group.Materials and methods: Ninety subjects, aged 45-50 years old were included in this study, seeking treatment for chest pain in Ibn-AlBaytar center for cardiac surgical treatments in Baghdad, Iraq. The subjects were divided into study group (45 patient) who were diagnosed to be a hypertensive patient, and a control group (45 subject), with no hypertension. Plaque status was evaluated according to the Silness and Loe, probing pocket depth and clinical attachment level. Unstimulated saliva was collected from all subjects to analyses MMP-8. Result: A high mean value of plaque index, clinical attachment level and probing pocket depth for the study group than the control group with statistically no significant difference. In addition to that, a significant positive correlation between the plaque index and the clinical attachment level among both groups. Salivary MMP-8 level showed a higher level in the study group than in the control group, with statistically significant difference between groups, and a significant positive correlation was detected between salivary MMP-8 with plaque index, among study group,Conclusions: Higher percentage of periodontal diseases was found among patients with blood hypertension. In addition, high level of salivary MMP-8 is potentially associated with periodontal status of the study group.


Article
Study some performance indicators and soil physical properties for wheat Zagros variety

Authors: Salih K. Alwan Alsharifi --- Sarah H. Ameen
Journal: Euphrates Journal of Agriculture Science مجلة الفرات للعلوم الزراعية ISSN: 38752072 Year: 2018 Volume: 10 Issue: 4 Pages: 23-35
Publisher: Al-kasim University جامعة القاسم الخضراء

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Abstract

The effect of soil moisture and tillage depth was studied on some mechanical properties for type tillage machine (moldboard plow) and soil physical characteristics on wheat Zagros variety at two soil moisture levels of 13-15%and 15-17% and three levels tillage depth of 10,12 and 14 cm. The experiments were carried out in a factorial experiment under randomized complete block design with three replications. The results showed that the soil moisture 13-15%is significantly better than the soil moisture 15-17% as well as tillage depth 10cm was significantly superior to the other two tillage depth 12 and 14cm in all studied conditions. The results showed fuel consumption of 9.181 and 8.817 L.ha-1, slippage percentage of 8.360 and 7.960 %, field efficiency of 66.649 and 69.516 %, soil moisture content of 13.842 and 14.212 %, soil bulk density of 1.312and 1.263 Mg.m-3, total soil porosity of 50.490 and 52.339 % percentage of germination of 88% and 93% and production of wheat crop of 1.357 and 1.545 ton.Dounm-1 for soil moisture 13-15% and tillage depth 10 cm, respectively.


Article
FLEXURAL CAPACITY FOR RC BEAMS WITH EXPOSED REINFORCEMENT

Author: Rizgar S. Amin
Journal: KUFA JOURNAL OF ENGINEERING مجلة الكوفة الهندسية ISSN: 25230018 Year: 2018 Volume: 9 Issue: 3 Pages: 180-200
Publisher: University of Kufa جامعة الكوفة

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Abstract

The currently available approaches on the effects of the exposed reinforcement on the flexural strength capacity of beams by other researchers are critically reviewed. These methods for estimating the flexural- compression strengths of beams with main steel exposed along all or part of the span do not give good predictions for the ordinary reinforced member. In this paper, the simple shear-compression theory introduced in earlier study is modified to the treatment of unbonded beams and a very simplistic empirical equation is proposed. The accuracy of the proposed equation is examined by comparing with results of 44 beams from literature. The comparison showed that the predictions by the proposed equation are between 0.85-1.25 to those of test results. The ratio of the experimental ultimate moments to the calculated ultimate moments by the proposed equation gives an average of 1.06 and C.O.V=0.21. The method of calculation proposed here is relatively successful in predicting the ultimate moment resistances but not in predictions of the physical behavior of the beams with exposed reinforcements.


Article
Behavior of Hybrid Reactive Powder Concrete Columns Exposed to Chloride Attack
تصرف الاعمدة ذات الخرسانة الفعاله المهجنة المعرضة لهجوم الكلورايد

Authors: Mohammed M. Salman محمد مصلح سلمان --- Husain K. Jarallah حسين خلف جارالله --- Raed Satar Al-Behadili رائد ستار ورور
Journal: AL-NAHRAIN JOURNAL FOR ENGINEERING SCIENCES مجلة النهرين للعلوم الهندسية ISSN: 25219154 / eISSN 25219162 Year: 2018 Volume: 21 Issue: 3 Pages: 327-343
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

In this paper, the cross section behavior of reinforced concrete columns made of normal and hybrid reactive powder concrete (hybrid by steel and polypropylene fibers) under concentric and eccentric vertical load was study. The casted columns were cured in two different type tap water for 28 days and chloride water for six months. Chloride salts with concentration was 8341.6 mg/l. Three variables were adopted in the experimental program; concrete type, curing type and the eccentricity of vertical load. Twenty (120x120x1200) mm columns were casted and tested depending on these variables. The different eccentricities were (0, 50,100 and 150) mm and where (e/h) were (0, 0.42, 0.83 and 1.25) respectively from the center of column, the other types of loading are tested the specimens as beam.The experimental results showed increasing in ultimate load capacity and higher chlorides resisting for hybrid reactive powder concrete in comparison with normal concrete in both types of curing (tap and chloride water). Through studying load deflection, test results for Normal Strength Concrete (NSC) and Hybrid Fiber Reactive Powder Concrete (HFRPC) columns that deflection for columns cured in chloride water more than tap water when compared at the same load that also by increase eccentricity leads to an increase in deflection for both cured and The neutral axis depth for HFRPC columns is more than NSC at the same load also when eccentricity increases, the compression zone decreases and neutral axis also decrease by increase eccentricity. These results occur when columns are cured in tap and chloride water.

في هذا البحث تم دراسة تصرف المقاطع للاعمدة الخرسانية المسلحة والمصنوعة من نوعين من الخرسانة العادية وذات المساحيق الفعالة والمهجنة بالالياف (steel and polypropylene fiber) تحت تأثير الحمل المحوري واللامحوري , تم صب الاعمدة ومعالجتها في نوعين مختلفين الاولى في المياه العادية ولمدة 28 يوم والثانية في المياه الكلوريدية ولمدة 6 اشهر و بتركيز ( 8341.6 ملغملتر) . يتضمن الجانب العملي ثلاث متغيرات هي نوع الخرسانة ونوع المعالجة ونوع التحميل, حيث تم صب وفحص 20 عمود خرساني بابعاد (120 × 120) ملم وبارتفاع 1200 ملم. في الفحص تم تسليط ثلاث انواع من الحمل وهي الحمل المحوري واللامحوري وهي (0, 50, 100, 150) ملم ونسبة (, 0) (e/h0.42 , 0.83 و 1.25 ) من سنتر العمود والحمل الاخير هو فحص النموذج كعتبة.اظهرت النتائج العملية زيادة في الحمل والمقاومة في كلا المعالجة العادية والكلوريدية للخرسانة المهجنة مقارنة بالخرسانة العادية من خلال الحصول على منحنيات القوى-الانفعال, نتائج الفحص للخرسانة العادية والمهجنة ومن خلال الرسوم تم استنتاج بأن الانفعال للخرسانة العادية والمهجنة عند معالجتها في المياه الكلوريدية هي اكثر من الانفعال لنفس الخرسانة عند معالجتها في المياه العادية. وكذلك بزيادة اللامحورية يزداد التشوه للخرسانة. وبنت النتائج بأن عمق المنطقة الانضغاطية للخرسانة ذات المساحيق الفعاله والمهجنة بالالياف هي اكثر من الخرسانة العادية عند نفس الحمل وكذلك بزيادة اللامحورية فان منطقة الانضغاط تقل وعمق المنطقة كذلك يقل وهذه النتائج تنطبق على كلا المعالجتين العادية والكلوريدية.


Article
Study The Effect of Intermittent and Continuous Ponding Depths by Using Different Heads to Leach Water

Author: Nesrin J. AL-Mansori
Journal: Journal of University of Babylon مجلة جامعة بابل ISSN: 19920652 23128135 Year: 2018 Volume: 26 Issue: 5 Pages: 105-114
Publisher: Babylon University جامعة بابل

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Abstract

As results of using water for irrigated lands in a random manner in a time of shortage main water resources,Experimental work carried out to study the effect of continuous and intermittent ponding depth on the leaching processes. Sandy soil used, sourced from Hilla / Al-Jameeya, atHilla city. Sieve analysis and hydrometer testing used to identify the properties of the soil. A model used with dimensions of 30, 30 and, 70 cm, with two different heads of water. Shatt-Al-Hilla River samples used in the leaching process. Chemical testscarried out before the leaching process to identify changes in the proprieties in bothwater and soil.Leachatecollected from twosoil columns drainedinto boxes and testscarried out every30 minutes. After the leaching process was complete, the soil wasre-tested. Chemical tests on soil samples and the collected water applied after leaching for 47.5 cm and 52.5cm heads.From the results،, it can be notice that electrical conductivity for the outlet discharge from soil samples decreased faster with time,then slowing down until the end of leaching process. The same pattern can be seen for all soil properties.In continuous leaching, a large quantity of water is required over a short leaching period, the inverse true for intermittent leaching. All parameters reduce with time in continuous leaching in comparison to intermittent leaching but when the water level in the soil column compared, it can inferred that increasing the head will reduce all the parameters for soil.In both continuous and intermittent leaching processes, all parameters tested decreased with time. When comparing continuous leaching with intermittent leaching, it can be noticed that the two heads, increasing the head size results ina faster decrease across all parameters (ph, SO3,TSS,CL,CaCO3,EC) in both continuous and intermittent leaching processes

لاستخدام المياه للارواء بطريقة عشوائية في وقت تندر فيه المياه.تم اجراء العمل المختبري في هذا البحث لدراسة تأثير الغمر المتقطع والغمر المستمر على عمليات التصفية. التربة المستخدمة للدراسة من مدينة الحلة وتحديدا في منطقة الجمعية .تم استخدام التحليل المنخلي لتشخيص خصائص التربة ...مع موديل بأبعاد (30*30*70) سم ...بأستخدام ضاغط ماء بعمقين مختلفين ...نماذج المياه المستخدمة تم اخذها من مياه شط الحلة...وتم اجراء الفحوصات الكيميائية المختلفة للتربة والماء معا قبل اجراء عمليات السقي لنموذج الموديل لمعرفة التغيرات في الخصائص قبل وبعد الارواء. تم تجميع مياه السقي المبزولة من كلا عمودي التربة في صناديق وتم اجراء الفحص المختبري كل 30 دقيقة ,تم إعادة فحص التربة بعد إتمام عملية الارواء لكلا العمودين بأرتفاع 47.5 سم و 52.5 سم للماء اعلى التربة ..تبين من النتائج بأن التوصيلية الكهربائية للمياه المبزولة من التربة تقل بشكل اسرع مع الوقت مع تشابه النمط في جميع خصائص التربة.في الانغمار المستمر يحتاج الى كميات مياه اكثر خلال فترة قصيرة على العكس من الانغمار المتقطع..علما ان جميع الخصائص تقل مع الوقت في الغمر المستمر اكثر من الغمر المتقطع..لكن مع مقارنة عمود الماء اعلى التربة نلاحظ بزيادته سيقل جميع خصائص التربة عن ما كانت عليه قبل الانغمار.مع مقارنة نوعي الغمر أعلاه ...نجد ان زيادة عمود الماء يؤدي الى نقصان اسرع وخصوصا في المحددات التالية(الحامضية , الكبريتات, المواد الصلبة العالقة., الكلورايد, كبريتات الكالسيوم, التوصيلية الكهربائية) في كلا النوعين من الانغمار.


Article
Investigating the Correlation Between Palatal Depth and Width Measurements in Impacted Maxillary Canine Patients by Using Cone Beam Computed Tomography

Authors: Alah Dawood Mahmood --- 1Omar Faruq Mohammed
Journal: Journal of Oral and Dental Research مجلة طب الفم والاسنان ISSN: 23106417 Year: 2018 Volume: 5 Issue: 2 Pages: 32-39
Publisher: Iraqi Association for Oral Research الجمعية العراقية لبحوث طب الفم

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Abstract

Background Cone Beam Computed Tomography system of 3D digital acquisition can be used in various dental sections such as orthodontics, endodontic, implantology, surgery and oral diagnosis. Linear and angular measurements on Cone Beam Computed Tomography images are accurate, precise and can be used to assess the exact position of displaced canines. Objectives It is to investigate with cone beam computed tomography the correlation between the palatal depth, width and the upper canine impaction. Materials and methods The study sample consists of 57 CBCT images of 35 patients referred to Al- Shifaa private hospital with impacted maxillary canines and 22 control patients with fully erupted canines. These were evaluated by volumetric 3D imaging to accurately localize the normal or impacted canines. The palatal depth and width of the impacted canine and control cases were measured and compared.Results The statistical descriptive analysis showed no significant difference in palatal width measurements between the control and impacted canine groups. On the other hand, the LSD test showed a significant difference in the mean of palatal depth between the control cases and impacted canine cases. Conclusions Marked decreased palatal depth in impaction cases could be a factor in causing maxillary canine impaction


Article
Studying the Strength of the Pile Cap Concrete Simulated as a Continues Deep Beam using Self Compact Concrete

Author: Zouhear A. Hachem
Journal: DIYALA JOURNAL OF ENGINEERING SCIENCES مجلة ديالى للعلوم الهندسية ISSN: 19998716/26166909 Year: 2018 Volume: 11 Issue: 2 Pages: 42-48
Publisher: Diyala University جامعة ديالى

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Abstract

This paper is an experimental study to investigate the effect of concrete compressive strength on the structural behavior of continuous reinforced concrete deep beams to utilize the results on the piles caps works. Three nominal concrete compressive strengths 50, 60 and 70 MPa obtained by self-compacting concrete were frequently used with four groups of shear span-to-depth ratios 5.71, 1.25, 1.08 and 0.95 to produce twelve continuous beams; three of them are shallow and the rest are deep. The comparisons were designed to reveal the variation in the structural behaviors among the shallow and deep specimens from a side, and among the deep specimen from another side. The experimental program concentrated on the ultimate strength, load-deflection curve, cracking and failure mode of the specimens. The results revealed that the concrete compressive strength is an effective factor on the behavior of the deep beam and when its value increased the ultimate strength and the serviceability of specimen can be improved about 48% whilst the enhancement achieved in shallow beams about 9%. The percentage of the obtained improvement for a specimen can be increased by decreasing its shear span-to-depth ratio.


Article
Experimental Study of Hydraulic Jump in Adverse Stilling Basin at Smooth Bed

Authors: Ali sadik Abbas علي صادق عباس --- Haider Alwash حيدر علوش --- Ali Abdul Jabbar Mahmood
Journal: DIYALA JOURNAL OF ENGINEERING SCIENCES مجلة ديالى للعلوم الهندسية ISSN: 19998716/26166909 Year: 2018 Volume: 11 Issue: 3 Pages: 7-13
Publisher: Diyala University جامعة ديالى

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Abstract

The effect of changing in the bed slope of stilling basins produces changing in characteristics of the hydraulic jump such as sequent depth ratio, length of jump ratio, length of the roller and energy dissipation ratio, consequently the dimensions of stilling basin changed. In this study hydraulic jump investigated on smooth bed (without any appurtenances) for three adverse slopes (- 0.03, - 0.045, - 0.06) in addition to horizontal bed slope, the experiments were applied for the range of Froude number (Fr1) between 3.99 and 7.48. The results showed a reduction about10 % in sequent depth ratio, 22.1 % in length of jump ratio, 20.51 % in length of roller ratio and 13.87% in the energy dissipation ratio when the adverse slope (- 0.06) used instead of horizontal bed for the same Froude numbers. Empirical equations for the sequent depth ratio, length of roller ratio and the energy dissipation ratio were obtained from the experimental data.

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