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Article
New High Angular Resolution Detection System for Direction Recognition

Authors: H.H. Habib --- W.K. Hamoudi --- R.A. Ismail
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2005 Volume: 1 Issue: 3 Pages: 27-32
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

A digital angular resolution detection device using linear detector arrays has been designed and fabricated in two models; with accuracy better than (r1q) and (r2q) respectively. The principle of operation is based on encoding the radiation angle of arrival by using a code mask based on random fractal generation.


Article
ECG Changes After Alteplase Therapy in Patients with Acute Myocardial Infarction

Author: Zaid A.MustafaAl-Najjar* ,Zahraa H.Ismaeel**, Amar Zedan Omran
Journal: Iraqi Academic Scientific Journal المجلة العراقية للاختصاصات الطبية ISSN: 16088360 Year: 2016 Volume: 15 Issue: 2 Pages: 158-162
Publisher: The Iraqi Borad for Medical Specialization المجلس العراقي للاختصاصات الطبية

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Abstract

ABSTRACT:BACKGROUND: Acute myocardial infarction is a major cause of death throughout the world. Many important advances have become available to Coronary Care Units enabling them to reduce mortality and improve the prognosis, Reperfusion therapy is one of these important advances. OBJECTIVE: This study sought to identify the Electro-cardiographic (ECG ) changes which occur after receiving Alteplase therapy and its relation to response to thrombolytic therapy. METHODS : Seventy-three patients with ST- elevation Acute Myocardial Infarction (AM I) who received Alteplase within 12 hours from the start of symptoms in coronary care unit were included in this study. Electro-cardiographic (ECG) was done to all patients at time of arrival to the coronary care unit(CCU), Alteplase therapy was given to all patients plus heparin intravenously, followed by electro-cardiographic (ECG ) every 30 minutes for 2 hours.RESULTS:Fifty-seven and half percent of our patients showed 50% reduction in the ST segment elevation in the worst lead after 2 hours from starting Alteplase therapy and regarded as responders. Other ECG changes like rapid appearance of Q wave, T inversion, accelerated idioventricular rhythm (AIVR) are found to be specific for reperfusion with a high predictive value when the gold standard criteria was reduction 50 % in the ST segment elevation Resolution of reciprocal changes is sensitive and specific with high predictive value. CONCLUSION :Some ECG changes after thrombolytic therapy can predict the response in addition to the already known changes. .


Article
Lineaments Analysis and Mapping From Satellite Images For Southern Iraq

Authors: Ahmed H. Hamdullah --- Hussain Z. Ali --- Hussein H. Karim
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2009 Volume: 27 Issue: 10 Pages: 1952-1965
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

Synergistic display of data recorded by different remote sensing has provedextremely valuable for the extraction of geological features such as lineaments .Accordingly , two satellite images were used for lineaments analyses which areconsidered as indicators for rock fractures . Image resolution merge anddirectional filtering methods were applied for lineaments extraction using GIStechniques .Rose diagram and lineaments density analysis were used for the tracedlineaments . The output of these techniques are used to trace new lineaments as aregional lineaments map . a synergistic display of these regional lineaments withgeophysical images allows the major lithological and structural boundaries to bemapped . Evaluation of lineaments map and its rose diagram analyses shows thatthe dominant lineament trend is mainly NW-SE and NE-SW. It is concluded thatthese lineaments indicate the fault zones within the area. Besides, a considerableconformity has been noticed between the location and dimension of suchlineaments with subsurface anomalies appeared in geophysical images

أظهر العرض المشترك للبيانات المسجلة ، باستخدام أنظمة التحسس النائي المختلفة ،أهميته في استخراج الظواهر الجيولوجية ومنها الخطيات .وعلى هذا الأساس استخدمتصورتان فضائيتان لتحليل الخطيات لكونها تعتبر مؤشر لتكسر الصخور. طبقت تقنيتان ، الأولىتقنية دمج الصور لتحسين قدرة التمييز وتقنية المرشحات الاتجاهية لاستخراج وتتبع هذهالخطيات باستخدام تقنية نظم المعلومات الجغرافية . أستخدمت طريقتان للتحليل بواسطة التمثيلالوردي وتحليل كثافة الخطيات . أستخدمت نتائج هذه التحليلات لاستخراج الخطيات الاقليميةوعمل خارطة لها . سمح العرض المشترك للخطيات الاقليمية مع الصور الجيوفيزيائية بتعيينالحدود الليثولوجية والتركيبية . أظهر تقييم خارطة الخطيات والتمثيل ان الاتجاه السائد لهذهوتشير هذه الخطيات الى أنطقة الصدوع ضمن المنطقة . كما NE-SW , NW-SE الخطياتلوحظ توافق واضح بين مواقع واتجاه هذه الخطيات مع الشواذ تحت السطحية الظاهرة فيالصور الجيوفيزيائية .


Article
Enhancement of Video Image Resolution Based on POCS (projection onto convex set)

Author: Maisaa Husam Al_anizy
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2012 Volume: 15 Issue: 1 Pages: 170-174
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

Our approach based on enhancing the resolution of video (data set of image which captured) through the addition of perceptually plausible high frequency information. By introducing an appropriate prior distribution over such data set we can ensure consistency of static image regions across successive frames of the video, and also take account of object motion. A key concept is the use of the previously enhanced frame to provide part of the training set for super-resolution enhancement of the current frame and that by adopted the local variance of reference frame as the foundation to establish the operator for projection onto convex set (POCS) and local threshold value for pixel-repair. And the results show that an improvement in video quality can be achieved.

النهج الذي سنتبعه لتحسين مستوى الصور المستلمة من مجموعة صور فديوية هو بالاعتماد على خزين من البيانات المتراكمة لأفلام مماثلة لغرض الوصول إلى دقة عالية في تحسين اللقطة المشوشة الحالية, حيث يتم مقارنة بيانات اللقطة المشوشة مع مجموعة كبيرة من البيانات الخاصة بلقطات واضحة مماثلة ذات وضوح عالي لغرض الوصول إلى أقرب حالة تطابق مع القطة المشوشة والتي سيتم استبدالها باللقطة الواضحة المقاربة لها ، على أن يتم قبل ذلك التأكد من الانسيابية في اللقطات من خلال مقارنة اللقطة السابقة واللاحقة مع اللقطات المناظرة لها في الفلم الواضح ، وكذلك بالاستفادة من حركة الجسم الموجود في اللقطة المشوشة . هذه التقنية المتبعة في أسلوب مقارنة اللقطات المشوشة مع اللقطات المماثلة الواضحة التي تلتقطها العدسة المحدبة وتعرف بـ(POCS) لغرض التحديد الدقيق لقيمة جميع النقاط المكونة للصورة .وقد أظهرت النتائج بأن تحسن في نوعية الفيديو يمكن تحقيقه .

Keywords

Super-Resolution --- POCS --- LR --- HR --- Deblurring.


Article
Gabor Wavelet Transform in Image Compression

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Abstract

In the present paper, an importantmathematical transform which is calledGabor transform be used to develop amethod for image compression. Gabortransform is a type of wavelet-basedtransform. It is embedded in the standardcompression algorithm (JPEG2000) as amother wavelet. Based on the obtainedresults we believe that Gabor wavelettransform can provide the optimal resolutionin both the time and frequency domains, aswell as it seems to be the optimal basis toextract local features such as discontinuities.These advantages of Gabor wavelettransform make it an efficient transform forcompression. The proposed compressionsystem is a new approach that achieves ahigh compression ratio with acceptablevisual quality by exploiting the advantagesof Gabor wavelets .The simulation resultsshow that the proposed model gives a goodcompression images that could becompetitive to JPEG2000 using Haarwavelet.


Article
Determine the Best Mathematical Model for the Camera Viewing Angle as a Function of Object Distance
تحديد افضل موديل رياضي لزاوية رؤيه الكاميرا كدالة لابعاد الجسم

Authors: Heba Kh. Abbas هبة خضير عباس --- Anwar Hassan M. Al-Saleh ( انوار حسن مهدي --- Ali Abid .D. Al- Zuky علي عبد داود الزكي
Journal: Journal of College of Education مجلة كلية التربية ISSN: 18120380 Year: 2016 Issue: 3 Pages: 47-54
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

In present paper a mathematical model to determine the view angle of a camera as a function of object distance for each zoom number where the fitting curves for the practical data of the view angle(θ_height,θ_width) in the image plane which constant in the all object distances (D) for each camera zoom number. Then find the mathematical modeling equation that relates view angle, real distance (D) and camera zoom number (Z) to estimate height and width for the view angle. A graph between view angle and distance (D) to the theoretical and practical results has been tabulated and there was a very good similarity between them and close to the real measurements.

في هذا البحث تم تحديد افضل موديل رياضي لزاوية رؤية الكاميرا كدالة لابعاد الجسم لكل درجة تكبير للكاميرا,حيث لوحظ ان مستويات الدقة العملية لزوايا الرؤيا العمودية والافقية للصورة المستوية ثابته عند كل المسافات و لكل درجة تكبيرفي الكاميرا, ثم تم ايجاد معادلة الموديل الرياضي لزوايا الرؤيا وعلاقتها بابعاد الجسم ودرجة تكبير الكاميرا لتخمين زوايا الرؤيا العمودية والافقية, من الرسوم البيانية وجد توافق كبير بين النتائج العملية والنظرية وبشكل جيد جدا حيث كانت النتائج متقاربة جدا .


Article
On Free Resolution of Weyl Module and Zero Characteristic Resolution In The Case of Partition (8,7,3)
حول التحلل الحر لمقاس وايل وتحلل المميز الصفري في حالة التجزئة (8,7,3)

Authors: Haytham Razooki Hassan هيثم رزوقي حسن --- Niran Sabah Jasim نيران صباح جاسم
Journal: Baghdad Science Journal مجلة بغداد للعلوم ISSN: 20788665 24117986 Year: 2018 Volume: 15 Issue: 4 Pages: 455-465
Publisher: Baghdad University جامعة بغداد

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Abstract

This treatise is an application of the characteristic-free resolution of K_((8,7,3)) F to the Lascoux resolution of K_((8,7,3)) F (characteristic zero resolution). From this, study, we gain the connection between the resolution of Weyl module K_((8,7,3)) F in characteristic free mode and in the Lascoux mode.

هذا البحث هو تطبيق المميز الحر للتحلل K_((8,7,3)) F الى تحلل لاسكو لـ K_((8,7,3)) F (تحلل المميز الصفري) والذي حصلنا عليه من دراسة العلاقة بين تحلل مقاس وايل K_((8,7,3)) F بصيغة المميز الحر وصيغة لاسكو.


Article
A comparison of in-Hospital complications with ST segment elevation resolution after thrombolytic therapy in acute myocardial infarction
مقارنة بين المضاعفات داخل المستشفى ودقة ارتفاع شريحة ST بعد العلاج الخثاري في احتشاء عضلة القلب الحاد

Authors: Abdulkareem Abdulwahhab Al-Othman --- Aziz Muzafar Jaafer
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2013 Volume: 17 Issue: 3 Pages: 495-501
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: The primary goal of thrombolytic therapy in ST-segment elevation myocardial infarction is to restore the complete coronary reperfusion. The aim of the study was to assess the association of in- Hospital complications with ST-segment resolution after thrombolytic therapy in acute myocardial infarction.Methods: The ECG s of 100 patients with first ST-segment elevation myocardial infarction were recorded on admission, 90 and 180 minutes after Alteplase at Hawler Teaching Hospital (Coronary Care Unit) from January 2011 to October 2011. The mean age (±SD)was 59.8±8.4years,ranging from 37-80 years, 63% were males and 37% were females, male to female ratio equal 1.7:1. Patients were divided into three groups: Group (A): complete resolution of ST segment, group (B) : partial resolution and group (C) no resolution of ST-segment, those patients were followed for the detection of in-Hospital complications.Results: Heart failure cardiogenic shock,left ventricular systolic dysfunction and ischemic mitral regurgitation were higher in group (B) and (C) than (A) when ECGs were recorded at 90 and 180 minutes after thrombolysis (P < 0.001).Conclusion: Failure or partial resolution of ST segment can predict the early development of heart failure, shock, left ventricular systolic dysfunction and ischemic mitral regurgitation.


Article
Prevalence of Thyroid Incidentaloma Detected by High‑Resolution Ultrasound and Their Potential Risk of Malignancy in Healthy Individuals in Basrah Province

Author: Hanan Hamza Al-Rikaby, Ibrahim Falih Noori Al-Subaiee
Journal: Medical Journal of Babylon مجلة بابل الطبية ISSN: 1812156X 23126760 Year: 2019 Volume: 16 Issue: 3 Pages: 252-255
Publisher: Babylon University جامعة بابل

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Abstract

Background: This study conducted to define the prevalence and potential risk of malignancy of thyroid incidentaloma in a healthy populationusing high‑resolution ultrasound. Patients and Methods: A cross‑sectional prospective study between December 2017 and March 2018,included 1200 asymptomatic adults participants (1000 women aged 15–70 years and 200 men aged 19–65 year). The prevalence of thyroidincidentaloma, their distribution according to age and sex, nodule size, ultrasound characteristics, and risk stratification of malignancyusing Thyroid Imaging Reporting and Data System (TI‑RADS) grade were studied. Fine‑needle aspiration cytology (FNAC) examinationwas done for some specific patients. Results: The prevalence of thyroid incidentaloma was 27.3%. Thyroid incidentaloma were moreprevalent in females and elderly people in both sexes mainly in 60–75‑year‑old peoples. Nodules were solitary in 244 (74.4%) and multiplein 84 (25.6%) patients. The size of 186 nodules (45.1%) were <5 mm, 112 incidentaloma (27.2%) were 5–10 mm, and 114 (27.6%) weremore than 10 mm in size. Thyroid incidentaloma were cystic in 228 (55.3%), solid in 133 (32.3%), and complex in 51 (12.4%). Most solidnodules were hyperechoic (84/133, 63.2%), 29 (21.8%) isoechoic, and 20 (15%) were hypoechoic. 92.9% (171/184 solid and mixed nodules)were have well‑defined and regular borders and only 13 nodules (7.1%) have irregular and ill‑defined borders. Furthermore, 90.7% of solidand mixed nodules have wider than taller diameters. Microcalcifications were seen in three and macrocalcifications in two solid nodules.Of 412 incidentaloma, 258 were TI‑RAD 2 score, 136 TI‑RAD 3, and 18 nodules were classified TI‑RAD 4. TI‑RAD nodules 5 were notdetected. Suspicious incidentalomas of TI‑RAD 4 score were sent for FNAC examination. Papillary carcinoma detected in four nodules andfollicular tumor in eight nodules, three of them proved to be follicular carcinoma. The rate of malignancy in thyroid incidentaloma was 1.7%.Conclusion: Thyroid incidentaloma is relatively common, and the majority are benign. Ultrasound characteristics and size of nodule couldbe a reliable screening tool for malignant potential of the thyroid nodule.


Article
Comparison between Two Types of Electrodes for Electrostatic Quadrupole Lens

Author: Sura A. Obaid
Journal: JOURNAL OF MADENAT ALELEM COLLEGE مجلة كلية مدينة العلم الجامعة ISSN: 2073,2295 Year: 2013 Volume: 5 Issue: 2 Pages: 50-62
Publisher: City College of Science University كلية مدينة العلم الجامعة

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Abstract

This work aims to find the optimum design of electrostatic quadrupole lens and make the comparison between two different electrodes shapes which are computed with the aid of transfer matrices. Two types of electrostatic quadrupole lens, cylindrical convex electrodes, and cylindrical concave electrodes were used to find optimum field model, which was close to the field distribution for each design of the proposed lens. The path of charge-particles beam is traverse the field model has been determined by solving the trajectory equation of motion in Cartesian coordinates. Then, take the comparison of the optimum values of spherical aberration coefficients and resolution limits in both convergence and divergence plans for each proposed type.

تهدف هذه الدراسة لايجاد التصميم الامثل لعدسة كهروستاتيكية رباعية الاقطاب مع اجراء مقارنة بين نوعين من هذه العدسات بالاستعانة بمفاهيم انتقال المصفوفات ، أحداهما ذات أقطاب اسطوانية بسطوح محدبة والاخرى ذات اقطاب اسطوانية بسطوح مقعرة لإيجاد أنموذج المجال الكهروستاتيكي الأمثل لكل تصميم من العدسات المفترضة أعلاه. يتم حساب مسار حزمة الجسيمات المشحونة المارة خلال أنموذج المجال بواسطة حل معادلة الحركة للأشعة بالإحداثيات الكارتيـزيه، وقد تم مقارنة القيم المثلى لمعاملات الزيغ الكروي وحدود التحليل في كلا النموذجين المفترضيـن.

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