Journal of Pure & Applied Sciences <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> en-US <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> (Dr. Mohamed Alamen Sharif) (Dr. Mohamed Erhayem) Mon, 24 Jan 2022 09:33:25 +0000 OJS 60 Developing an Editor for Drawing Class Diagram within WinCASE Framework <p>Computer Aided Software Engineering (CASE) tools are significant for the software engineering field. They provide great support to software developers. WinCASE tool is one of these tools. It was invented in the Department of Computer Science at the University of Sheffield. Furthermore, dataflow Algebra is a methodology that is used to describe a formal specification of a system. Dataflow Algebra was also developed in the same department. Unified Modeling Language is a standard language for developing software systems. The class diagram is one of the UML diagrams which illustrates the system objects. This paper aims to upgrade the WinCASE tool by developing the Class diagram within the framework of this tool. Therefore, this paper reviewed the previous work and the background of the WinCASE framework, class diagram, Dataflow Algebra, the requirements of integrating the Class Diagram, and the methodology of this integration. Subsequently, &nbsp;the class diagram was implemented into the WinCASE framework; and then tested, and evaluated successfully as well. As a result, the WinCASE was provided with an editor for drawing the class diagram.</p> Alhadi Klaib, Abdelrahman Arbi, Ragab Ihnissi Copyright (c) 2021 Journal of Pure & Applied Sciences Sun, 09 Jan 2022 00:00:00 +0000 Flood Estimation in Al Qattara basin, southeast of Benghazi- Libya, by integrating the US Soil Conservation Service (SCS) model, geographic information systems and remote sensing techniques. <p>Estimation of water surface run-off in drainage basins significant to estimating the extent of its investment in various areas of human use. In this study, a hydromorphometric analysis was conducted for the Al Qattara Basin, located in the southeast of Benghazi-Libya, using remote sensing techniques, geographic information systems and the US Soil Conservation Service (SCS) model. The study results display that, Al Qattara Basin has an area of ​​1074.81km<sup>2</sup> with length of 89.5km, with shape is close to a triangle, and still in the stage of maturity. The density of drainage in the basin is high due to the permeability of most of its rocks, and its streams are arranged according to the Streller method from1 to8. The concentration time in Al Qattara basin 19.55hr and response time 11.73hr indicates that low probability of flooding. The maximum water flow in Al Qattara basin is 171.6m<sup>3</sup>/sec with peak time of 13.03hr and an average surface runoff flow of 5.01m<sup>3</sup>/sec. At the end of the study, it is recommended to design a rainwater drainage network in the city to suit the annually rainfall quantities to ensure its drainage. Also, construct obstructive dams in application of the principle of rainwater harvesting. Using the integration of remote sensing and geographic information systems techniques to study the morphometric and hydrological characteristics of drainage basins in Libya to develop plans to reduce flood risks by creating an available morphometric, climatic and hydrological database.</p> lubna bentaher Copyright (c) 2022 Journal of Pure & Applied Sciences Mon, 24 Jan 2022 00:00:00 +0000