Within this work, to promote the efficiency of organic-based solar cells, a series of novel A-π-D type small molecules were scrutinised. The acceptors which we designed had a moiety of N, N-dimethylaniline as the donor and catechol moiety as the acceptor linked through various conjugated π-linkers. We performed DFT (B3LYP) as well as TD-DFT (CAM-B3LYP) computations using 6-31G (d,p) for scrutinising the impact of various π-linkers upon optoelectronic characteristics, stability, and rate of charge transport. In comparison with the reference molecule, various π-linkers led to a smaller HOMO–LUMO energy gap. Compared to the reference molecule, there was a considerable red shift in the molecules under study (A1–A4). Therefore, based on

In this study, plastic wastes named (PET and PVC) were used to prepare polymer matrix composite (PMC) which can be used in different applications. Composite materials were prepared by mixing unsaturated polyester resin (UP) with plastic wastes, two types of plastic waste were used in this work included polyethylene-terephthalate (PET) and Polyvinyl chloride (PVC) with various weight fractions (0, 5,10,15, 20 and 25%) added as a filler in flakes form. In this work, some of the tests that were carried out included (tensile, bending, and compressive strength) as mechanical tests, in addition to (thermal conductivity and water absorption) as physical tests. The values of tensile, compressive strength and Young's modulus of UP increased after

This study aims to identify the impact of using the infrastructure of the Information Technology (IT) on the performance of human resources in the public universities. This process is done by doing research in the size, quality, and efficiency of the performance, also speed of achievement and simplification of procedures. Diyala University was chosen for the diagnosis through the opinions and attitudes of its employees.  Consequently, suggestions that contribute to improve the performance of the employees and thus its overall performance are obtained. Another objective of this study is identifying the human resources which are currently used in academic institutions and educational services systems because the significant role of th

Objectives: The study aims at:
1- Measuring the level of lead in workers’ saliva and blood in the factory.
2- Studying the correlation between the saliva lead level and the infection that caused by microorganisms, isolation and
identification.
3-Studying the influence of high blood lead level on the total white blood cells.
Methodology: This study has been conducted for the period from March 15th, 2010 to May, 20th
, 2010. A total of (60)
saliva and blood samples were collected from workers in batteries industry factory in Baghdad and another (20) samples
were collected as a control group. Lead level had been measured in blood and saliva samples, then microorganisms were
isolated the from the saliva samples.

The highest incidence of injury is seen in adolescent playing pivoting sports such as soccer, basketball, and handball. Objective: To examine the effectiveness of a neuromuscular prevention program in reducing knee and ankle injuries in adolescent male soccer players.

According to the importance of the conveyor systems in various industrial and service lines, it is very desirable to make these systems as efficient as possible in their work. In this paper, the speed of a conveyor belt (which is in our study a part of an integrated training robotic system) is controlled using one of the artificial intelligence methods, which is the Artificial Neural Network (ANN). A visions sensor will be responsible for gathering information about the status of the conveyor belt and parts over it, where, according to this information, an intelligent decision about the belt speed will be taken by the ANN controller. ANN will control the alteration in speed in a way that gives the optimized energy efficiency through

الميسر في موسيقى الشعر العربي

الادب في اللغة ملكة تقصي من قامت به عن كل ما يشبنه

او هو حسن الخلق وفعل المكارم

او الظرف وحسن التناول

او الالتزام لما يندب له الانسان⁽¹⁾ .

وقد كثر استخدام هذه اللفظة في التراث فقيل ادب الطبيب ، وادب الوزير، وادب القاضي ، وادب المائدة ، وادب الخط ، وادب المعلم والمتعلم ، وادب المعلم في نفسه وفي درسه ،وادب المتعلم مع استاذه وادب البحث والدرس.

إن موضوع العلاقات الحضارية بين المغرب و وادي الرافدين في عصر فجر التاريخ من المواضيع التي تعنى بإنتقال التأثيرات الحضارية العراقية إلى دول المغرب العربي عامة والمغرب خاصة . فقد إسترعى إنتباهي وجود إشارات مقتضبة أحيانا ومفصلة أحيانا أخرى عن تأثيرات في بعض الصناعات الفخارية والمعدنية والعمارة الدينية والدنيوية بين بلدان شرق البحر المتوسط والمغرب في

لا شك أن الموسيقى هي أقدر الفنون على خدمة الإنسان، وهي أرقى أنواع منشطات الحياة والصحة النفسية والعضوية، فالصحة النفسية والعضوية هي تناسق الشيء مع كل شيء الخلية مع الخلايا، والروح مع الأرواح، والإنسان مع الكون، كما تتناسق النغمة مع النغمات، والآلة مع الآلات .