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alkej-710
UAV Control Based on Dual LQR and Fuzzy-PID Controller
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This paper presents the design of a longitudinal controller for an autonomous unmanned aerial vehicle (UAV). This paper proposed the dual loop (inner-outer loop) control based on the intelligent algorithm. The inner feedback loop controller is a Linear Quadratic Regulator (LQR) to provide robust (adaptive) stability. In contrast, the outer loop controller is based on Fuzzy-PID (Proportional, Integral, and Derivative) algorithm to provide reference signal tracking. The proposed dual controller is to control the position (altitude) and velocity (airspeed) of an aircraft. An adaptive Unscented Kalman Filter (AUKF) is employed to track the reference signal and is decreased the Gaussian noise. The mathematical model of aircraft has been (Cessna 172) presented. The stability and robustness of the system have been verified in a simulation experiment.

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Publication Date
Thu Oct 25 2018
Journal Name
وقائع مؤتمر
تطبيقات انماط قيادة التعقيد في المؤسسات المستندة على المعرفة (التعليم العالي انموذجاً)
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Publication Date
Wed Mar 30 2022
Journal Name
Journal Of Educational And Psychological Researches
Content analysis of the chemistry textbook for the third intermediate grade according to visual thinking
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The aim of this research is to identify the availability of visual thinking skills in the chemistry textbook scheduled for the third intermediate grade for the academic year (2020-2021) in the Republic of Iraq. The study sample consisted of all (85) images contained in the chemistry course for the third intermediate grade, which are (85) form using the curriculum.  Analytical descriptive A list of visual thinking skills was prepared, and the unit of form was adopted as a unit of analysis and repetition as a unit of counting, and frequencies and percentages were used for statistical treatment, and validity and reliability were calculated.  And using the Holste equation.  The following results were reached: The skill

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Publication Date
Tue Mar 30 2021
Journal Name
Baghdad Science Journal
Local Dependence for Bivariate Weibull Distributions Created by Archimedean Copula
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In multivariate survival analysis, estimating the multivariate distribution functions and then measuring the association between survival times are of great interest. Copula functions, such as Archimedean Copulas, are commonly used to estimate the unknown bivariate distributions based on known marginal functions. In this paper the feasibility of using the idea of local dependence to identify the most efficient copula model, which is used to construct a bivariate Weibull distribution for bivariate Survival times, among some Archimedean copulas is explored. Furthermore, to evaluate the efficiency of the proposed procedure, a simulation study is implemented. It is shown that this approach is useful for practical situations and applicable fo

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Publication Date
Wed Mar 18 2020
Journal Name
Baghdad Science Journal
Natural Products of Lactococcus Overcome Nosocomial Infection in Some of Baghdad Hospitals in Iraq
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Nosocomial infections (NIs) are hospital-acquired associated infections, and also contracted due to the infections or toxins that exist in some location, like hospital. Therefore in our study, 4 Lactic acid bacteria (LAB) isolates were obtained from dairy product (Lactobacillus brevis, L. acidophilus, Lactococcus raffinolactis and Lactococcus lactis) and were tested for Bacteriocin production to select Lactococcus lactis among them. Cell free supernatant (CFS), Lipid and partial purification of protein La. Lactis had high inhibitory effect against test pathogens (E. coli, Bacillus cereus, Staphylococcus aureus and Streptococcus). 30 isolates that diagnosed by Vitec, were isol

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Publication Date
Thu Feb 07 2019
Journal Name
Iraqi Journal Of Laser
Investigation of Size-dependent Nonlinearity of Ag Nano-Fluids using Self-defocusing Technique
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In this work, the effect of different particle size on the nonlinear optical properties of silver nanoparticles in de-ionized water was studied. The experimental observation of the far field diffraction patterns by CCD camera in two and three dimensions. The maximum change of nonlinear refractive index and the relative phase shift were calculated. The self-defocusing technique was used with a continuous-wave radiation from DPSS Blue laser .The wavelength is 473 nm with an output power of 270 mW. All the Ag colloids samples containing the sizes 15, 30, 50, and 70 nm of silver nanoparticles used in the study were chemically prepared. It was found that the nonlinear refractive index is a particle size dependent and of the order of 10-7 cm2/

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Publication Date
Mon Jan 01 2007
Journal Name
Journal Of Educational And Psychological Researches
قياس تاثير وسائل اتصال العولمة على العلاقات الانسانية لدى طلبة جامعة بغداد
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يعد مفهوم العولمة ظاهرة عالمية كونها نزعة طاغية في الوقت الحالي منسوبة الى العالم ، ولم تدخل بعد قوائم المفردات في القواميس السياسية والاقتصادية . (الأسدي ،2004-ص88).وأن العولمة  " Globlization أخذت مدلولان ، الاول يدل على الانفتاح وحرية التفكير ومتابعة الاكتشافات في مختلف المجالات والابتعاد عن الرتابة والروتين . اما الثاني فيدل على سطحية التفكير وحب التغيير لأجل التغيير ونبذ الماض

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Publication Date
Sat Jul 31 2021
Journal Name
مجلة الفتح
تقويم كتاب الفيزياء للصف الرابع العلمي على وفق معايير تصميم وانتاج الانفوجرافيك
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ان الهدف من البحث الحالي هو تقويم كتاب الفيزياء للصف الرابع العلمي وفق معايير تصميم وانتاج الانفوجرافيك ومن اجل تحقيق هذا الهدف تم اختيار المنهج الوصفي(تحليل المحتوى) وحدد مجتمع البحث بكتاب الفيزياء للمرحلة الاعدادية الرابع العلمي, المقررة للعام الدراسي 2020-2019 ـ اما عينة البحث فكانت جميع الرسوم والاشكال والمخططات المتضمنة في هذا الكتاب. تم اعداد اداة التحليل المتمثلة بقائمة معايير تصميم وانتاج الانفوجرافيك

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Publication Date
Tue Jun 01 2021
Journal Name
مجلة جامعة الامام جعفر الصادق (ع ) للدرسات القانونية
استراتيجيات منظمة الاوبك لضبط اسعار النفط العالمي واثرها على استقرار الاقتصاد العراقي
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يحتل النفط مكانة هامة وجوهرية ضمن اقتصاديات العالم، حيث إنه يمثل سلعة استراتيجية عالمية ومادة أولية أساسية في الصناعات الكيميائية والبتروكيميائية، كما أنه متعدد الاستعمالات، سواء في الصناعة أو الزراعة، بالإضافة إلى استعمالاته في الحياة اليومية للإنسان، مما جعله ذا مكانة مهمة ضمن أطر التجارة الدولية وموقع خاص في تشكيل الخريطة الاقتصادية للعالم. وقد جاء هذا البحث ليسلط الضوء على استراتيجيات منظمة الأوبك لض

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Publication Date
Tue Jul 01 2008
Journal Name
Journal Of Educational And Psychological Researches
مدى وعي المرأة في قدرتها على تأثيث وتنسيق منزلها في مدينة المكلا
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ملخص البحث :-

المنزل هو الشغل الشاغل لكل انسان لانه المكان الذي يجد فيه راحته ويعبر عن ذوقه ويعكس شخصيته وهو بمن فيه يشكل وحدة عمل وانتاج يتطور بمرور الزمن .

من خلال ملاحظة الباحثة لكثير من النساء في مدينة المكلا انهن يقعن في اخطاء مختلفة عند تأثيث منازلهن بسبب جهلهن اساليب التخطيط السليم لشراء الاثاث او تنسيقه في فراغات المنزل المختلفة . ولكي تصل الباحثة الى هدف البحث كان لا

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Publication Date
Tue Jun 19 2018
Journal Name
Elmofaker Review
The Secondary Liability of Electronic Auctions Arising from Contributory Trademark Infringement – A Comparative Study
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Despite the global economic downturn, online e-commerce, especially the sale of counterfeit goods, continues to witness a rise in sales, and one of the important players in e-commerce is the owners of e-commerce auction sites. Although they do not have a direct role in trademark infringement, they still consider them indirectly responsible (secondary liability) for infringing on their trademarks. Thus, many cases have been filed by the owners of the original trademarks (which have been infringed by persons who have sold some of the goods and products that are imitating their marks through some electronic auctions) against the owners of those auctions. In view of the international character of the Internet, in different countries, and despit

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