Journal of Pure & Applied Sciences http://sebhau.edu.ly/journal/index.php/jopas <p>Journal of Pure &amp; Applied Sciences (JOPAS) is a part of Sebha university journals and published by Sebha University. JOPAS is an open access, peer-reviewed journal. JOPAS is committed to publish the latest research updates from scientists, researchers and students worldwide through one of the world’s best Open Journal Platforms. It publishes review article, regular article and short communication in all fields of pure and applied sciences. The different fields include but not limited to biological, natural and pure sciences. All articles will be peer reviewed with at least two blinded reviewers. Accepted manuscripts are published online as soon as the author approved the final proof. There are two volumes per year with unlimited numbers of articles. Accepted articles will be added to the current volume without any delay. Publishing with JOPAS is absolutely free in other words there will not be any handling, processing charges. </p> Sebha University en-US Journal of Pure & Applied Sciences 2708-8251 <p>In a brief statement, the rights relate to the publication and distribution of research published in the journal of the University of Sebha where authors who have published their articles in the journal of the university of Sebha should how they can use or distribute their articles. They reserve all their rights to the published works, such as (but not limited to) the following rights:<br>- Copyright and other property rights related to the article, such as patent rights.<br>- Research published in the journal of the University of Sebha and used in its future works, including lectures and books, the right to reproduce articles for their own purposes, and the right to self-archive their articles.<br>- The right to enter a separate article, or for a non-exclusive distribution of their article with an acknowledgment of its initial publication in the journal of Sebha University.<br>Privacy Statement The names and e-mail addresses entered on the Sabha University Journal site will be used for the aforementioned purposes only and for which they were used.</p> Detailed Facies Analysis of Assedjefar Formation in Al Awaynat Area, Murzuq Basin, Southwestren Libya http://sebhau.edu.ly/journal/index.php/jopas/article/view/1634 <p>This Facies analyses of rocks are a powerful tool that might be used to reconstruct geological events, environmental conditions, and depositional environments of the rocks. This study provides detailed facieses analyses of the Assedjefar Formation based on petrography, fossil contents, and hand specimens. Furthermore, 29 thin sections have been made from selected samples of the studied sequence. A group of 33 repeated fine facieses has been defined throughout the studied sections. A 25 facies of them are fine limestone facieses, and 8 of them are fine facieses of clastic rocks. Furthermore, the fine limestone facieses were classified into 6 typical facieses, without repetition, and ranged from mudstone to grainstone with various grain types. 2 sedimentary zones are determined for limestones deposits and they are restricted platform interior and Open Marine platform interior. While the fine clastic facieses were deposited within 3 sedimentary zones and whish are marine, Mixed marine-fluvial, and fluvial.</p> Emhmed Elzidani Saad Kamel Mahmoud Ahmad Copyright (c) 2021 Journal of Pure & Applied Sciences https://creativecommons.org/licenses/by/4.0 2021-11-22 2021-11-22 20 4 22 32 10.51984/jopas.v20i4.1634 Exact Calculations for One Photon Micromaser with Coherent Inputs II http://sebhau.edu.ly/journal/index.php/jopas/article/view/1612 <p>We introduce results for the second part of our calculations for the action of a single atom and one photon micromaser when atoms are coherently injected into a microwave cavity, and for the case when the atomic probabilities&nbsp; |α|≠0 and |β|≠0. During the presence of the atom inside the cavity the field couples to a heat bath at temperature T. The results of this second part and those of the first part of our work give a complete information for the behaviour of the micromaser field for the two cases of injected atoms namely|α|=1, |β|=0 and&nbsp; |α|≠0 , |β|≠0 . We have found that the evolution of the field after a sufficient number of atoms had passed the cavity shows a steady state when the repetition time T_pis much greater than the interaction time t_int. We also found that the trapping state at n = 3 plays an important role in the early dynamics of the field within the cavity. Finally, we found that the field evolution towards a mixed state and not to a pure state. This prevention of purity because of: the presence of decay of the field inside the cavity, the presence of the trapping state at n = 3 (centered between the two trapping states at photon number n = 0 and at a photon number n = 15) prevents the field from developing towards a pure state, and finally the presence of the black body radiation field initially in the cavity at temperature T.</p> A. M. Kremid Copyright (c) 2021 Journal of Pure & Applied Sciences https://creativecommons.org/licenses/by/4.0 2021-11-11 2021-11-11 20 4 11 14 10.51984/jopas.v20i4.1612 Approximation Of Continuous Set Valued Mapping And Membership Function Rough Topology http://sebhau.edu.ly/journal/index.php/jopas/article/view/1553 <p>In this paper, we&nbsp; introduce the new definition of rough membership function using continues function and we discuss several concepts and properties of rough continuous set value functions as&nbsp; new results on rough the continues function and membership continues function . Moreover, we extend the definition of rough membership function to topology spaces by substituted an equivalence class by continuous functions and prove some theorems on certain types of set value functions and some more general and fundamental properties of the generalized rough sets. Our result generalized the concept of the set valued function by using rough set theory.</p> Faraj. A. Abdunabi Ahmed Shletiet Copyright (c) 2021 Journal of Pure & Applied Sciences https://creativecommons.org/licenses/by/4.0 2021-10-13 2021-10-13 20 4 1 4 10.51984/jopas.v20i4.1553 Computer department students use smart phones in the educational process Field study at the Higher Institute of Science and Technology – Al-Kufra http://sebhau.edu.ly/journal/index.php/jopas/article/view/1633 <p>This study aimed at using of smart phones in education as one of the new forms of education, and as a result of the great scientific and technological revolution, it was necessary for university institutions to follow the electronic curriculum and use modern educational media. Smart phones are one of these means and their use in the educational process, in addition to knowing the degree of using smart phones in the educational process for students at Computer Department at the Higher Institute of Science and Technology in Kufra. The descriptive analytical method was used in the study, by distributing questionnaires to all members of the study community from the students at computer department and surveying them during the academic year 2020/2021. The total number of questionnaires rose to (85) questionnaires. The results of the study showed high percentages in the use of smart phones due to the ease of use at any time and place without any difficulties. The smart phones are present with students constantly, and this enhances the fact that the use of smart phones in education develops the cognitive aspect, and research skills. The study recommended that the need to conduct training courses for both students and faculty members to employ and use applications of mobile learning in a way that serves the educational process and build learning systems based on the mobile environment. As well as the need to reconsider the programs and curricula and their implementation strategies to continue assimilating the concepts of the electronic and technological revolution with pace, while conducting more studies that reveal mobile learning applications in other stages of study.</p> Mousa Muhammed Omar karbaj Garber khalfa jaber Copyright (c) 2021 Journal of Pure & Applied Sciences https://creativecommons.org/licenses/by/4.0 2021-11-22 2021-11-22 20 4 16 21 10.51984/jopas.v20i4.1633 Traffic Movement at Five Intersections on Jamal Abdul-Nasser Street – Sebha http://sebhau.edu.ly/journal/index.php/jopas/article/view/1609 <p>Jamal Abdul-Nasser is a major trunk road that divides Sebha city into two semi-equal parts. It connects almost all districts with different activities and services in the center of the city. Alongside Jamal Abdul-Nasser Street, exist various types of activities: administrative, educational, commercial, public services and some other activities. Due to its importance, the street carries out the densest traffic movement within the city. This paper tries to study and analyze traffic movement at five intersections on Jamal Abdul-Nasser Street: (1) Al-Nahdha; (2) Khaled Ibn-Al-Walid; (3) Al-Khotoot; (4) Al-Tijari Bank; (5) Al-Zeraie Bank. Selection of the pre-mentioned intersections referred to their importance as converging points to various important activities and land uses. Data required for the study purposes include intersection characteristics, traffic flow characteristics and traffic composition pattern. The results reveal the significance of taking care of the geometric and regulatory aspects that enable the intersections to perform well with regard the smoothness of traffic flow.</p> Ahmed Mohamed Ahmed Alhodairi Asmael Godan Naiel Massoud Ali Ahmed Fakroun Copyright (c) 2021 Journal of Pure & Applied Sciences https://creativecommons.org/licenses/by/4.0 2021-11-10 2021-11-10 20 4 5 10 10.51984/jopas.v20i4.1609