تقدم هذه الأطروحة برنامج حاسوبي تفاعلي لتصميم خطوط النقل الكهربائي ثلاثية الأطوار باستخدام MATLAB. يمكن استخدام هذا البرنامج كوسيلة تعليمية داخل وخارج الفصل الدراسي لشرح أساسيات و ضواهر خطوط النقل الكهربائي.تتناول اغلب الكتب المرجعية المتاحة حاليا لمحتويات خطوط النقل التصميم الكهربائي فقط ولهذا السبب فان اغلب طلاب هندسة القوى الكهربائية يتخرجون من الجامعة وبدون دراية كافية عن الجزء المتعلق بالتصميم الميكانيكي والمتمثل في حسابات ارتخاء الخط والشد على الأبراج وزيادة وزن الموصلات نتيجة لتجمع الثلوج أو زيادة سرعة الرياح وتغير كل من ذلك مع درجات حرارة الجو. كما أن هذا البرنامج مزود ببعض البرامج الإضافية الأخرى والمتمثلة في حسابات قيم سعات ومتحاثات خطوط النقل أخدا في الاعتبار السلك الأرضي. كما أن هذا البرنامج يمكن استخدامه لمعرفة المعاوقات والسعات التسلسلية ( الصفرية والموجبة).وقد تم تزويد هدا البرنامج بقاعدة بيانات تحتوى على مواصفات شاملة للعديد من الموصلات المستخدمة في خطوط النقل الكهربائي.كما أن هذا البرنامج يمكن استخدامه لحسابات شدة المجال الكهربائي حول الموصلات وبالقرب من الأرض. Abstract This thesis presents an interactive computer program for three phase overhead transmission line design using MATALB. This program can be used as a self learning tool to understand the course material offered in class and to enhance students understanding to the three phase transmission line subject. This first course is normally given as a core course to all electrical engineering students. Most of the existing text books in power system analysis nowadays cover the Electrical line design only and describe the line performance very efficiently with very few power text books which treat the mechanical line design part. Therefore electrical engineering students with power engineering major are often graduated from school without having sufficient background concerning the mechanical line design features such as; line sag, the mechanical tension at the tower and the conductor sag due to temperature variations or line loading, conductor thermal limit ….etc. The program is also equipped with an additional feature to compute the line sequence impedances and the line sequence capacitances. Other line features are also provided in this package such as ; thermal limit line calculation, line voltage stability phenomena and the electrical field calculation due to transmission line. Therefore using this program the students will then be able to compute the line sequence parameters for both the single circuit as well as the double circuit tower configuration, with and without ground wire. The package has been also provided with a built in data base library to most of the available power line conductors. Therefore power engineering students will then be able to understand the transmission line course contents in more depth and to use the other supporting program modules as a self learning tool for line design and line modeling performance.
.سالم مسعود الكردي (2010)

In this paper, a combination of Space-Time Block Coded Spatial Modulation with Hybrid Analog-Digital Beamforming (STBC-SM-HBF) for Millimeter-wave (mmWave) communications is proposed in order to take advantage of the merits of Spatial Modulation (SM), Space-Time Block Codes (STBC), Analog Beamforming (ABF), and digital precoding techniques while avoiding their drawbacks. This proposed system benefits from the multiplexing gain of SM, from the transmit diversity gain of STBC, and from the Signal-to-Noise Ratio (SNR) gain of the beamformer. The simulation results demonstrate that the Zero Forcing (ZF) and the Minimum Mean Square Error (MMSE) precoded STBC-SM systems have better Bit Error Rate (BER) performance than the precoded SM systems. Moreover, the precoded SM shows a performance degradation compared to STBC-SM system. Furthermore, the BER is significantly improved by employing an array of ABF. In addition, it is demonstrated that a minimum of 2 antenna elements in the proposed scheme of STBC-SM-HBF are required to obtain better BER than that of the conventional SM and STBC-SM systems under the same spectral efficiency of 2 bits/s/Hz.
Taissir Y. Elganimi, Ali A. Elghariani(5-2018)

Open Educational Resources (OER) is simple but powerful educational materials made freely and legally available on the Internet for anyone to reuse, revise, and redistribute. These materials have the potential to give people everywhere equal access to our collective knowledge and provide many more people around the world with access to quality education by making lectures, books and curricula widely available on the Internet. In this paper a brief history of OER is stated and then Creative Commons Licenses are explained and finally the steps to implement OER in Libya are outlined
wael saleh mohamed abughres, Mohamed Ahmed Ramadan Mgheder, Atia M. Albhbah (7-2017)