Due to the rapid development in information technology in terms of information exchange and transmission through different transmission media, and the provision of storage places. when the volume of data is smaller, this means that, it provides better transmission speed. and saves time, which led to the emergence of data compression techniques to reduce its size without compromising the quality of the data. Data compression is still an important topic of research and has many applications and required uses. This paper presents a study of some of the data compression methods: Huffmann and Huffmann shift code, binary shift code algorithm, and the LZW method, analyzing and comparing between them, using a fixed text for all methods. keywords: Data compression, compression techniques, Huffmann, Huffmann shift code, binary shift code , LZW.
Jalal M. Mehalhal, Adem.A.Bensaid, Mohamed Egbisha(8-2021)

Nowadays, educational and research institutions, especially universities, have considered their focus on cloud computing rather than using conventional prospects to take the most benefits of the services offered to support current trends in teaching and learning strategies. To build these networks in a cost effective way, open source cloud computing platforms are used. One of the powerful tools is Openstack, which allows users to create virtual networks and manage virtual machines within distributed learning environments. In this article, we describe our project on designing and evaluating a private cloud within a university environment using Openstack. To this end, we conduct a survey to measure the students' attitude towards the use of private clouds in which students and experts serve as samples. We design a virtual lab consisting of a number of virtual machines operated by a selected sample. We evaluate the proposed solution by adopting Technology Acceptance Model (TAM) methodology. The results obtained from this study show that the students' acceptance in using the private cloud in performing their tasks is encouraging albeit their anxiety on security issues and their lack of experience.
Belaid Mohammed Addokali, Adib Habbal, Suhaidi Hassan, Nabil Benamar(4-2017)

The higher education outcome in Libya is having serious issues (Elkaseh, Wong, & Fung, 2016). In this regard, according to the higher education ministry of Libya; the graduation rate from the Libyan university have declined sharply over the period 2011-2016, which can be sourced from the internal conflicts and lead to lower the attendance of the higher education students. This issue has formed a real challenge for the higher education system to figure out an alternative or complementary solution for this obstacle. Online courses are considered as …
Dr. Ebrahem ALI ELBURASE (1-2022)