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)

Abstract In this thesis, we present a method for the design of multidimensional digital filters. This method is based on the use of genetic algorithm (GA). GA algorithm is proposed to optimize the coefficients of magnitude frequency response of digital filter design. GA algorithm is used to minimize a cost function representing the difference between the frequency response magnitudes of an ideal and obtained digital filters. Two types of filters namely, Finite Impulse Response (FIR) and Infinite Impulse Response (IIR) are implemented.The digital FIR filter exhibits a wide transition bands and ripples in the pass band which are considered as disadvantages in digital image processing. Therefore, the only way to obtain a steep transition FIR is to use high order which translates to high cost. An alternative way to avoid high cost filters is to use IIR digital filters. Such digital filters can provide steeper transition bands with lower order than equivalent FIR digital filters. Although FIR digital filters have the disadvantages of high cost in term of hardware realizations, they have the advantage of stability and linear phase. Since IIR digital filters have infinite impulse response, they are prone to unstability. Linear phase which is easy to obtain in FIR digital filters is hard to come by IIR digital filters. The low cost and fast filtering make the IIR digital filters attractive. The proposed GA is utilizing for the design of stable IIR filter with near linear phase constraints. Experimental results are presented for 1-D and 2-D digital IIR filter. From the magnitude-frequency response, the convergence of the proposed approach will be able to obtain global minima in a faster time.
ميسون محمد الزرقاني (2010)

إن معدل البيانات والقدرات و التغطية و الكفاءة الطيفية في نظم الاتصالات اللاسلكية يمكن أن تتعزز مع الناقل متعدد الحوامل والهوائي المتعدد، وبالتالي يتعزز الأداء العام لمنظومات الاتصالات اللاسلكية بشكل كبير من خلال الجمع بين تقنيات أنظمة تساعد تقنية الهوائيات متعددة المداخل والمخارج في ، تجميع تقسيم ترددي متعامد و أنظمة الهوائيات متعددة المداخل والمخارج زيادة سرعة تدفق البيانات وحيث أن تقنية تجميع تقسيم ترددي متعامد تعمل على نشر القناة الترددية انتقائية التلاشى على العديد من الرموز في هذه الأطروحة، سيتم تقييم الاداء بالاعتماد على مستوى الوصلة ومستوى النظام، حيث يتمثل قياس الأداء في مقدار حصيلة البيانات ، ونصف قطر الخلية وقوة الإشارة بالنسبة إلى التداخل الضوضاء، كما يعتمد على معيار القدرة المستخدمة آخذا في الإعتبار نوع التضميين والترميز .في هذه الأطروحة تبدأ السيناريوهات من الوصلة وتمتد الي مستوى النظام في تقنية التطور طويل الأمد. لتحقيق ما ورد أعلاه: من خلال تحليل المعادلات وبرنامج المحاكاة لحساب صافي البيانات عند حافة الخلية وتغطية الخلية والسعة على الوصلة الهابطة، ثم بعد تنفيذ برنامج المحاكاه، لاحظنا الهوائيات المتعددة الإرسال تؤثر على سرعة وصول النقل وأخذا في الاعتبار أسلوب التضمين فعند الزيادة في عدد الهوائيات فان صافي البيانات تزداد أيضا ولكن يجب أن تكون متناسبة مع احتمالية الخطأ وكذلك تتحسن التغطية مع نقصان رتبة التضمين المستخدم. ان مستوى النظام مع حركة المرور المختلفة الإنتاجية للنظم وقدرة الشبكة تتحدد بواسطة عدد كتل الموارد ، حيث ان عدد هذه الكتل تعتمد على معدل سرعة بيانات الخدمة ومعدل سرعة البيانات لكل كتلة. تنتهي هذه الأطروحة بخاتمة وملخص للنتائج وكذلك بعض التوصيات وبعض المواضيع لدراسات مستقبلية كإمتداد لما تم في هذه الأطروحة. Abstract In wireless communication systems the data rate, capacity, coverage, and spectral efficiency; can be enhanced with multi-carrier transmission and multi-antenna, then the overall wireless communication system performance is greatly enhanced by combining OFDM and MIMO schemes, MIMO helps in increasing the throughput where as OFDM spreading out the frequency selective fading channel over many symbols. In this thesis evaluating performance of the system depends on both link and system levels, where the measure of performance is represented in the throughput, cell radius and the effective signal to interference plus noise ratio (SINR). It also depends on the employed capacity criterion and it takes into account the impact of adaptive modulation and coding. The worked scenarios start from a link level extending to a system level in 3GPP LTE. To achieve the above a number of tasks followed by observations are carried out. They start by analysis of the equations and a Matlab program is written to calculate the cell edge throughput, cell coverage and DL capacity. After the programs implementation, the multi antenna transmission effect is noted on the arrival throughput when taking into account the modulation technique. When increasing the order of the antenna and the throughput is also increased, but it must be traded off with the probability of error; Coverage has also improved by decreasing the order of the modulation technique. For the system level with different traffic, the overall throughput of the system and the capacity of the network are determined by the number of resource blocks (RBs). These RBs depend on the bit rate of the service and bit rate for each RB. The adopted scenarios in this thesis start from link to system, where the features are represented in a flexible base station and user configurations, channel modeling with path loss, user mobility, also at different transmitter and receiver (MIMO). The approaches are useful in single user and multi-user MIMO, then all of the above can be standardized by metrics: capacity, throughput, spectral efficiency, user QoS etc. Finally thesis conclusion and some future work as an extension of this work are presented.
هبه مدحت الزقلعى (2014)