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Article
Using One-Class SVM with Spam Classification
استخدام SVM ذات الصنف الواحد لتصنيف البريد المؤذي

Authors: Inas Ali ايناس علي --- Sumaya Saad سمية سعد --- Safa Ahmed صفا احمد
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2016 Volume: 57 Issue: 1B Pages: 501-506
Publisher: Baghdad University جامعة بغداد

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Abstract

Support Vector Machine (SVM) is supervised machine learning technique which has become a popular technique for e-mail classifiers because its performance improves the accuracy of classification. The proposed method combines gain ratio (GR) which is feature selection method with one-class training SVM to increase the efficiency of the detection process and decrease the cost. The results show high accuracy up to 100% and less error rate with less number of feature to 5 features.

SVM تقنية موجهه لتعليم الماكنة والتي اصبحت تقنية شائعة لمصنفات البريد الالكتروني بسبب ادائها الذي يحسن التنصنيف. الطريقة المقترحةتجمع بين نسبة الربح وهي طريقة اختيار الخصائص مع تدريب SVM ذات الصنف الواحدلزيادة كفاءة عملية الكشف وتقليل الكلفة. اظهرت النتائج دقة عالية تصل الى 100% ونسبة خطأ اقل مع عدد خصائص يصل الى 5 خصائص.

Keywords

gain ratio --- spam --- SVM


Article
Evaluation of Mandibular Third Molar Position by Using Space-Width Ratio Method

Authors: Istabraq M. Mohamed استبرق محمد --- Nidhal H. Ghaib نضال حسين غايب
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2016 Volume: 28 Issue: 4 Pages: 168-171
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The prediction of changes in the mandibular third molar position and eruption is an important clinical concern because third molar retention may be beneficial for orthodontic anchorage. The aims of this study were to assess the mandibular third molar position by using medical CT scan and lateral reconstructed radiograph and evaluate gender differences.Materials and Methods: The sample of present study consisted of 39 patients (18 males and 21 females) with age range 11-15 years who were attending at Al-Suwayra General Hospital/ the Computerized Tomography department. The distance from anterior edge of ramus to distal surface of permanent mandibular second molar and mesio-distal width of developing mandibular third molar were measured in both three dimensional volumetric and two dimensional CT derived lateral images. The statistical analyses included: means, standard deviations. Paired t-test was used to compare between the two methods and independent t-test was used in verifying the genders difference.Results: The results showed that there was high significant method difference between 3D CT and 2D image and gender differences were observed in values of linear measurements of present study, as males showed higher mean values than females.Conclusion: There is high accuracy of measurement on CT images, so C.T. scan is advisable during the diagnosis and treatment plan of orthodontic cases


Article
Comparison of Bolton’s Ratios in a Sample of Iraqi and Egyptian Populations

Authors: Munad J. Al-Duliamy مناد الدليمي --- Samer S. Othman سامر عثمان --- Farouk A. Hussien فاروق حسين
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2016 Volume: 28 Issue: 4 Pages: 172-175
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The objective of this study was to investigate the possibility of standardizing the Bolton ratio analysis as a diagnostic measure for both Iraqi and Egyptian orthodontic populations within three Angle' classification groups.Materials and methods: Two hundred forty pretreatment study casts (one hundred twenty of each population) were included in this study and divided into three Angle' classification groups. The mesiodistal crown diameters of all teeth were measured for computing the anterior and total Bolton ratios. Analysis of variance was performed to compare the mean ratios of Bolton analysis as a function of the Angle classification.HSD test was used to specify the classes of malocclusion that have significant differences.Results: No statistically significant differences were determined in the mean values of the anterior ratio among the angle classification groups in both Iraqi and Egyptian populations. No statistically significant differences were determined in the mean values of the overall ratio among the angle classification groups in Iraqi population. While there were statistically significant differences in the mean values of overall ratio among the angle classification groups in Egyptian population. This difference is specified with in class II malocclusion of Egyptian population.Conclusion: Anterior Bolton ratio can be standardized for both Iraqi and Egyptian orthodontic populations. While the overall ratio can be standardized only in class I and III malocclusions of both populations


Article
Assessment of apoB and apoA-I serum levels associated with Acute Coronary Syndrome (ACS) in Babylon province

Authors: Hayder Hashim Al-Shalah --- Oday Jassim Al-Salihi --- Sana Abdul-Jabbar Ali
Journal: Medical Journal of Babylon مجلة بابل الطبية ISSN: 1812156X 23126760 Year: 2016 Volume: 13 Issue: 1 Pages: 167 -175
Publisher: Babylon University جامعة بابل

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Abstract

Acute coronary syndromes (ACS), is a term that encompasses both unstable angina and myocardial infarction (MI) with or without ST-segment elevation.It is a life-threatening disorder that remain a source of high morbidity and mortality despite advances in treatment. Risk assessment done by using risk factors and risk markers. In the present study assessment of apolipoprotein B (apoB) and apolipoprotein A-I (apoA-I) done to recognize their roles as risk biomarkers.Acase control study enrolled 160 subjects; 80 patients diagnosed as ACS patients by expert physicians and 80 controls (non-ACS) subjects. Serum levels of apoB and apoA-I was measured by using ELISA technique. The results were expressed as qi-square categorical statistics. A P value of < 0.05 was considered to be statistically significant. A concentration of apoB>1.3g/L in female and >1.5g/L in male appeared to be eleven times risky for ACS than lower levels (OR=11.2).ApoA-I showed non-significant variation between patients and controls (p>0.05). Subjects having apoB/A-I ratio between (0.6-o.79) as a female and (0.7-0.89) as a male are two times risky to get ACS than controls (OR=2.3).Concluded that apoB is a strong predictor of ACS, abnormal low apoA-I serun level does not contribute to the risk stratification of ACS in the presence of high apoB serum level, and the apo-ratio is the strongest of all lipid-related variables and is thus the best summarizing risk variable.

Keywords

ACS --- apoB --- apoA-I --- apoB/A-I-ratio --- Biomarker


Article
Evaluation of the Hydraulic Performance Indicators for Al- Ibrahim Irrigation Canal in the South of Iraq
تحليل مؤشرات الأداء لقناة شط آل أبراهيم الأروائية جنوب العراق

Authors: Jaafar S. Maatooq --- Ghazwan A. Kadhim
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2016 Volume: 34 Issue: 3 Part (A) Engineering Pages: 623-635
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

This study was concerned for steady flow in open canals of different flow conditions that may exist in irrigation system. To achieve this objective, AL-Ibrahim Canal Located South of Iraq has been selected from numerous irrigation systems having deficiencies between demand requirements and actual supply, due to a problematic of distribution and management. The field works consists the measurements of stages at outlets,at upstream, and at downstream head regulators .The study adopted nineteen actual cases of discharge along six months, two or more measurements at each month during the study period,between November 2013 to April 2014.The main objectives of the present study are; analysis the actual operation of irrigation canal and evaluated indicators then the HEC-RAS model was applied to achieve these objectives. Themax. stage and discharges measurements at head regulator during the study period was4.415 m3/sec at Jan.2014,where it less than a target discharge , so the outlets along canal should not be operated at the same time especially if the gate of the outlets are fully opened , because for entire operation numerous outlets will take discharge higher than the target.The study has shown that it doesn'toperatethe channel and access to the standard of performance but several scenarios have been prepared depending on the discharge at head regulator.

تهتم هذه الدراسة بالجريان الثابت في القنوات المفتوحة وحسب الشروط المختلفة للجريان في منظومات الري.ولتحقيق هذا الهدف تم اختيار قناة ري ال إبراهيم في جنوب العراق من بين العديد من منظومات الري والتي تعاني عجزا في متطلبات الري مقارنة مع المجهز الفعلي وذلك بسبب مشاكل التوزيع والإدارة للمياه. تمت الأعمال الحقلية بأجراء تسعة عشر حالة قياس فعلية لمناسيب المياه والتصريف في ناظم الصدر والمنافذ الحقلية وعلى مدار ستة أشهر ولمواسم زراعية مختلفة للفترة من شهر تشرين الثاني لعام 2013 ولغاية شهر نيسان من العام 2014 وبمعدل حالتين أو أكثر لكل شهر.الأهداف الرئيسية لهذه الدراسة هي تحليل التشغيل الفعلي للقناة وتقييم مؤشرات الأداء وتطبيق نموذج هيدروليكي باستخدام برنامج (HEC-RAS).وبينت الدراسة أن أعلى تصريف مسجل لناظم الصدر خلال فترة الدراسة كان بمقدار 4.415 م3/ثانية في شهر كانون الثاني من العام 2014. وهو اقل من التصريف المطلوب، لذلك فان المنافذ الحقلية الموزعة على طول القناة لايمكن تشغيلها في وقت واحد إذا كانت بواباتها مفتوحة بالكامل لان بعض المنافذ الحقلية سوف تأخذ تصريف أكثر مما هو مطلوب .بينت الدراسة انه لايمكن تشغيل القناة والوصول إلى الموشرات القياسية للأداءألامن خلال سيناريوهات محددة تم إعدادها اعتمادا على التصريف عند ناظم الصدر.


Article
Effect of Adding Used-Foundry Sand on Hot Asphalt Mixtures Performance

Authors: Hasan Hamodi Joni --- Hussein HamelZghair
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2016 Volume: 34 Issue: 6 Part (A) Engineering Pages: 1253-1264
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

Highway material researchers have been investigating the use ofbyproduct materials such as used-foundry sand as a fine aggregate and mineral filler in asphaltic concrete mixtures to replace the traditional asphalt mixes by new one contain this type of sand. This researchshow a study using of used-foundry sand as an alternative to filler and fine aggregate in hot asphalt mixture, aims to minimize the environmental effect caused by this waste materials. To evaluate mechanical properties, the mixtures were designedby Marshall method which contain the used- foundry sand and determine indirect tensile strength ratio and then compared with hot asphalt mixtures contained of two types of filler(ordinary cement and limestone dust).The results showing that the reuse of foundry sand in the mixtures of hot mix asphalt as a partial replacement of fine aggregate that retained on sieve No 200 and a total replacement of filler material is viable and can be used in asphalt mixtures production. The hot asphalt mixtures containing of used-foundry sand with cement filler type improved the moisture sensitivity performance as characterized in indirecttensile strength ratio. Furthermore, that theresults obtained from Marshall stability test indicate maximum Marshall stability obtained for mixtures with cementand used-foundry sand more than these stabilities for mixes with used-foundry sand and lime stone dustas a filler were (15.3, 12.5 and14.1) respectively .


Article
Gasoline, Ethanol and Methanol (GEM) Ternary Blends utilization as an Alternative to Conventional Iraqi Gasoline to Suppress Emitted Sulfur and Lead Components to Environment
استخدام خلائط تيرنرية من الجازولين والأيثانول والميثانول (GEM) كبديل لوقود الجازولين العراقي لتقليل مكونات الكبريت والرصاص المنبعثة الى البيئة

Author: Miqdam Tariq Chaichan مقدام طارق جيجان
Journal: Al-Khwarizmi Engineering Journal مجلة الخوارزمي الهندسية ISSN: 18181171 23120789 Year: 2016 Volume: 12 Issue: 3 Pages: 38-51
Publisher: Baghdad University جامعة بغداد

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Abstract

Iraqi conventional gasoline characterized by its low octane number not exceed 82 and high lead and sulfur content. In this paper tri-component or ternary, blends of gasoline, ethanol, and methanol presented as an alternative fuel for Iraqi conventional gasoline. The study conducted by using GEM blend that equals E85 blend in octane rating. The used GEM selected from Turner, 2010 collection. G37 E20 M43 (37% gasoline + 20% ethanol+ 43% methanol) was chosen as GEM in present study. This blend used in multi-cylinder Mercedes engine, and the engine performance, and emitted emissions compared with that produced by a gasoline engine. The results show that this blend can formulate with available Iraqi produced materials. GEM ternary blend offers significant advantages in terms of engine performance compared to gasoline. Also, GEM higher useful compression ratio (HUCR) = 9.25 while gasoline HUCR=7.5. The increment in engine bp was 24.12%, BSFC reduced by 13.9% and brake thermal efficiency increased by 19.59%. The volumetric efficiency increased by 8.06%. Also, CO, HC concentrations were reduced by 30.5%, 25.16% respectively. Smoke opacity reduced by 46.49% and CO2 concentrations reduced by 5% as well as NOx concentrations that reduced by 1.75%.

يتميز وقود الجازولين العراقي بانخفاض رقمه الأوكتاني الذي لا يتجاوز 82 وارتفاع محتواه من الكبريت والرصاص. في هذة الدراسة تم استخدام خليط مكون من ثلاثة مركبات أو خليط تيرنري مكون من الجازولين والأيثانول والميثانول كبديل للجازولين العراقي التقليدي. تمت الدراسة باستخدام خليط GEM مساوي في تصنيفة الوكتاني لخليط E85. تم اختيار خليط GEM من مجموعة Turner, 2010. فلقد اختير خليط G37 E20 M43 (37% جازولين + 20% ايثانول + 43% ميثانول) في الدراسة الحالية. تم استخدام هذا الخليط في محرك متعدد الأسطوانات نوع مرسيدس وتمت مقارنة اداء المحرك والملوثات المنبعثة عنه بتلك الناتجة عن محرك جازولين.بينت النتائج أنه يمكن تشكيل هذا الخليط من مواد عراقية متوفرة، ويوفر هذا الخليط فوائد كبيرة لحالة أداء المحرك مقارنة بالجازولين. إن نسبة الأنضغاط النافعة العليا له هي 9.25، بينما للجازولين كانت هذة النسبة 7.5. كما ازدادت القدرة المكبحية بحدود 24.12%، وقّلّ الأستهلاك النوعي المكبحي بحدود 13.9% وازدادت الكفاءة الحرارية المكبحية بحدود 19.59%. ازدادت الكفاءة الحجمية بحدود 8.06%. كذلك قلت تراكيز ملوثات CO و HC بحدود 30.5 و 25.16% على التوالي. وقلت عتامة الدخان بحدود 46.49% ومثلها تراكيز CO2 قلت بحدود 5% بينما تراكيز NOx فقد قلت 1.75%.


Article
Study the Effect of Different Reinforcements on the Damping Properties of the Polymer Matrix Composite
دراسة تأثير مواد التدعيم على خواص التخميد لمادة متراكبة ذات أساس بوليمري

Authors: Mustafa Ziyara Shamukh مصطفى زيارة شامخ --- Ibtihal Abed Al-Razaq ابتهال عبد الرزاق محمود
Journal: Al-Khwarizmi Engineering Journal مجلة الخوارزمي الهندسية ISSN: 18181171 23120789 Year: 2016 Volume: 12 Issue: 3 Pages: 52-60
Publisher: Baghdad University جامعة بغداد

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Abstract

In this research, damping properties for composite materials were evaluated using logarithmic decrement method to study the effect of reinforcements on the damping ratio of the epoxy matrix. Three stages of composites were prepared in this research. The first stage included preparing binary blends of epoxy (EP) and different weight percentages of polysulfide rubber (PSR) (0%, 2.5%, 5%, 7.5% and 10%). It was found that the weight percentage 5% of polysulfide was the best percentage, which gives the best mechanical properties for the blend matrix. The advantage of this blend matrix is that; it mediates between the brittle properties of epoxy and the flexible properties of a blend matrix with the highest percentage of PSR. The second stage included reinforcing the best blend matrix of epoxy-polysulfide (the blend matrix with the best percentage of polysulfide resulted from the previous stage), by different volume percentages of short fibers (Carbon& Glass) separately and randomly. The volume percentages of fibers were (2.5%, 5%, 7.5%, and 10%). The third stage included reinforcing the blend composites with highest percentages of carbon and glass fiber, by different weight percentages of nano-particles (Red mud& Fly ash) separately. The weight percentages of particles were (0.5%, 1%, 1.5%, and 2%). The experimental results showed that blending polysulfide rubber with epoxy increased the damping ratio. As for reinforcement materials, they decreased the damping ratio, where glass fiber composites have significantly higher damping ratio than other composites.

تم في هذا البحث دراسة خصائص التخميد لمواد متراكبة بأستخدام طريقة التناقص اللوغاريتمي لحساب نسبة التخميد. تم اعداد المواد المتراكبة المستخدمة في هذا البحث بثلاث مراحل. المرحلة الاولى تضمنت اعداد خلطات ثنائية من الايبوكسي وعدة نسب وزنية مختلفة من مطاط البولي سلفايد (0%, 2.5%, 5%, 7.5%, و 10%). لقد وجد ان النسبة الوزنية 5% لمطاط البولي سلفايد كانت أفضل نسبة والتي تعطي خصائص ميكانيكية جيدة لخليط المادة الأساس. ما يميز هذا الخليط المتراكب الناتج كونه يتوسط بين الصفات الهشة للأيبوكسي والصفات المرنة لخليط متراكب ممزوج مع اعلى نسبة بولي سلفايد. المرحلة الثانية تضمنت تدعيم افضل خليط المتراكب (الخليط المتراكب ذو النسبة المثلى من مطاط البولي سلفايد المختارة من المرحلة السابقة) , بنسب حجمية مختلفة من الياف الكربون والزجاج القصيرة (2.5%, 5%, 7.5%, و 10%) كلٍ على حدا وبتوزيع عشوائي. المرحلة الثالثة تضمنت تدعيم الخلائط المتراكبة مع اعلى نسبة الياف كربون وزجاج، بنسب وزنية مختلفة من الدقائق النانوية المتمثلة بالطين الأحمر والرماد المتطاير بشكل منفصل. النتائج العملية أظهرت بأن خلط مطاط البولي سلفايد مع الايبوكسي أدى الى زيادة نسبة التخميد. اما بالنسبة لمواد التدعيم، فأنها أدت الى نقصان نسبة التخميد, حيث ان متراكبات الياف الزجاج أظهرت قيم اعلى لنسبة التخميد مقارنة بباقي المتراكبات.


Article
Synthesis and optical properties of CdS quantum dots via paraffin liquid and oleic acid
تحضير الخصائص البصرية ل CdS QDs عن طريق سائل البارافين وحامض الاوليك

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Abstract

In this study, an easy, low-cost, green, and environmentally friendlier reagents have been used to prepare CdS QDs, in chemical reaction method by mixed different ratio of CdO and sulfur in paraffin liquid as solvent and oleic acid as the reacting media in different concentration to get the optimum condition of the reaction to formation CdS QDs. The results give an indication that the behavior is at small concentration of 4ml of the oleic acid is best concentration which give CdS QDs of small about to 9.23 nm with nano fiber configuration.

في الدراسة الحالية، استخدمت طريقة سهلة وقليلة التكاليف وصديقة للبيئة لتحضير مادة كبريتيد الكادميوم النانوية باستخدام طريقة التفاعل الكيمائي، حضرت العينات باستخدام نسب مختلفة من أوكسيد الكادميوم والكبريت في خليط مذيب البارافين وحامض الاوليك كعامل مساعد وبتراكيز مختلفة للوصول الى شروط التفاعل لتكوين QDsCdS. أظهرت النتائج انه عند التراكيز القليلة4ml من حامض الاوليك يتم الحصول على افضل تركيزممكن للحصول على حجم منCdS QDs صغير بحدود 9.24 nm بتشكيل نانوفايبر.


Article
Ultrasound strain Elastography of Normal Breast Tissue in Correlation with Mammographic Breast Density

Authors: Wasan Ismail Al-Saadi --- Suha Hussain Hayyawi --- Noor Kadhum Neema --- Huda Fawzi Salih
Journal: Mustansiriya Medical Journal مجلة المستنصرية الطبية ISSN: 20701128 22274081 Year: 2016 Volume: 15 Issue: 3 Pages: 45-51
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Background: Strain elastography is relatively new ultrasound technique that assess elasticity of the tissue .This technique utilize the relative strain of the tissue of interest to generate color coded image and to measure the strain ratio. It has been extensively investigated and introduced as a promising technique for characterization of breast masses. Aim of study:To assess the relative strain of fat and glandular tissue as well as the strain ratio in relation to different mammographic breast density categories and with respect to the depth of tissue Subjects and Methods: A total of 162 women with normal breast imaging were included and categorized according to the American College of Radiologists (ACR) mammographic breast density categories (A, B , C , D). Elastography examination was performed for a single normal breast and the relative strain of the fatty tissue and glandular tissue at most superficial location as well as at 1-2 cm in depth were recorded . In addition the fat:glandular strain ratio was estimated. The elastographic variables were assessed with each other and with respect to breast density & the tissue depth Results:The subjects were subdivided according to ACR density system. It has been found that the mean relative strain of fat was higher in category A (0.30) in comparison with the other categories with statistically significant difference , however the relative strain of the glandular tissue was rather comparable between category A (0.25), category B (0.24) and category C (0.22) with statistically significant difference with category D(0.20) .The strain ratio was significantly different in category B (1.10) and category C (1.05) in comparison with category A (1.22).Comparing the relative strain in different depth revealed rather similar results where relative strain of fat in ( 1- 2 cm ) below Ref show significant difference in category B(0.21) and category C(0.20) in comparison with category A (0.29) as category group D is extremely dense so no fat tissue below ROI could be measured. Similarly the relative strain of glandular tissue in 1-2 cm below ROI show significant difference between category A (0.23) and category B (0.22) with category C and D (0.19 for both). Conclusion:The fat tissue elasticity is rather different in different breast density categories with higher elasticity of the fat in category A breast density (fatty breasts) as compared to other breast density categories .The glandular tissue strain is rather more comparable in the breasts in category B, C, and D and thus it may more convenient to use the glandular tissue as a reference tissue when assessing the relative elasticity of breast masses. Moreover , the depth of the measurement of the tissue elasticity has a significant influence on the quantitative assessment of the elastographic image

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