DSpace at UMBB
The institutional repository of the University M'Hamed Bougara Of Boumerdes is a digital archive that contains the scientific output of the University. Dspace manages, preserves and provides access to the academic works of UMBB.
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Recent Submissions
The Thirds International Conference on Computational Engineering and Intelligence Systems- ICCEIS2025 November 21st to 23rd, 2025, Online
(University of Boumerdes, 2025) Dekjandji, Fatma Zohra; Recioui ,Abdelmadjid; Bentarzi, Hamid; Yakhelef, Yassine
Multidisciplinary sciences constitute a constantly growing field in which emphasis centers around on technical approach through the integration of multiple academic fields. Computational Engineering is a contemporary and multidisciplinary field for computing- based representation, simulation, assessment, and optimization for complicated engineering processes and natural events. situated at the junction of computer science and applied mathematics, Computational Engineering encompasses mathematical algorithms for simulating and modeling of sophisticated processes; concurrent programming and shared software development; and techniques for arranging, investigating, displaying, managing, and evaluating huge amounts of information. Computational engineering
encompasses advanced mathematical, algorithmic, and computer language knowledge in addition to basic engineering and science. On the other side of it, Smart Systems Engineering delivers the forthcoming next-generation options, driven by computation and artificial intelligence. The intelligent systems are sophisticated technological gadgets that are made to react to certain demands. Developing platforms that see and respond to their surroundings is the focus of smart system engineering. The purpose of this conference is to gather scientists, research individuals and industrials to share information abnd results
regarding the issues withion the scope of the conference. The goal is to offer a forum for potential cooperation and idea sharing in order to progress this topic further. Subjects that might be interesting involve, yet not limited to, what follows : Computational analysis of biological systems; biomedical engineering and applications; Energy systems; climate modeling; simulation and modeling; co-simulation and multi-physical models; Cybersecurity; Data Science and Engineering ; High Performance Computing ; Optimization ; Multi-agent systems ; Evolutionary computation ; Artificial intelligence ; Complex systems ; soft computing and computational intelligence; sophisticated control technology; intelligent control Robotics and applications ; Intelligent information processing ; Iterative learning control ; Machine learning ; Intelligent systems and grids.
The International Conference on Computational Engineering, Artificial Intelligence and Smart Systems- ICCEAISS2025 October 29th to 31st, 2025, Djanet, Algeria
(University of Boumerdes, 2025) Dekhandji, Fatma Zohra; Recioui, Abdelmadjid; Bentarzi, Hamid; Yakhelef, Yassine; Benazzouz, Djamel; Grouni, Said
Multidisciplinary Engineering is a currently proliferating area in which focus is put on an engineering practice by combining several academic disciplines. Computational Engineering is a modern and multidisciplinary science for computer based modeling, simulation, analysis, and optimization of complex engineering applications and natural phenomena. Sitting at the intersection of computer science and applied math, Computational Engineering deals with
mathematical techniques for modeling and simulation of complex systems; parallel programming and collaborative software development; and methods for organizing, exploring, visualizing, processing, and analyzing very large data sets. Computational Engineering includes fundamental engineering and science, and advanced knowledge of mathematics, algorithms and computer languages. On the other hand, intelligent systems engineering offers the next generation of
solutions, powered by computing and artificial intelligence. Intelligent systems are technologically advanced machines that are designed to respond to some specific requirements. In Intelligent Systems Engineering, the scope is about creating systems that sense and react to their environments.
Unlocking Potential: The Impact of Electronic Management on Human Resource Development
(2025) Nouiouat, Souad; Letaief, Abdelkrim; Bouazzouz, Djihad
This study aims to analyze the role of electronic management in the development of human resources within the Sonatrach research and development center located in Boumerdes, focusing on the challenges related to its implementation and the benefits it can bring. The research problem addresses questions regarding the effectiveness of electronic management in improving HR processes such as recruitment, training, and performance evaluation, as well as the level of employee satisfaction with these systems. A descriptive and analytical approach was adopted, with 120 questionnaires distributed to employees, of which 106 were returned. The results were analyzed using SPSS software. The findings show that electronic management significantly contributes to enhancing the efficiency of human resource management, particularly by streamlining processes, improving information accuracy, increasing employee satisfaction, and boosting performance. However, certain challenges were identified, particularly regarding technological infrastructure and cultural adaptation within organizations. The study recommends strengthening infrastructure and offering specialized training programs to facilitate adaptation to digital transformation
Impact of calcination temperature, organic additive percentages, and testing temperature on the rheological behaviour of dried sewage sludge
(DE GRUYTER, 2024) Bestani, Amar; Lekbir, Choukri; Benmounah, Abdelbaki
The main objective of the present work is to eval- uate the influence of calcination pretreatment (600–1,000°C), organic additive incorporation (4% methocel, 4% amijel, and 8% starch), and testing temperature (20–60°C) on the rheo- logical flow behaviour of dried sewage sludge and sewage sludge ashes. Besides, the dependency of sludge systems rheology on total solid content (4–15%) and methocel percentage (3–6%) was also evaluated. Furthermore, char- terization techniques such as thermal gravimetric ana- lysis-differential scanning calorimetry, X-ray fluorescence, X-ray diffraction, Brunauer–Emmett–Teller, and scanning electron microscopy were employed to investigate, respec- tively, the thermal decomposition, the chemical composition, the structural variations, the specific surface area, the surface morphology, and microstructure of sludges. The analysis of rheological characteristics according to best-fitting rheolo-
gical models such as Herschel–Bulkley, Ostwald–de Waele, Cross, and Carreau models revealed that the yield stress (τ0) and infinite apparent viscosity (η∞) increase with an increase in TS or methocel percentage and decrease with increasing calcination or testing temperature. The strong impact of testing temperature concerning the reduction of the viscosity involves high activation energy (Ea). This last criterion was used to compare the inter-particle strength of sludge systems.
Caractérisation et valorisation des boues de la STEP de BOUIRA dans l'élaboration des membranes tubulaires destinées à la filtration des effluents industriels
(Université M'Hamed Bougara Boumerdès : Faculté de Technologie, 2025) Bestani, Amar; Lekbir, Choukri(Directeur de thèse)
Les principaux objectifs de la gestion des boues consistent à garantir la sécurité de la santé humaine et de diminuer l'impact sur l'environnement face aux substances dangereuses présentes dans les boues des stations d'épuration des eaux usées, tout en favorisant leur réutilisation dans divers secteurs. L'élimination ou la réutilisation des boues dépend de leurs caractéristiques évolutives, qui sont influencées par leur origine, leur type, leur teneur en humidité, leur composition chimique et leur comportement rhéologique. C'est dans ce contexte que nous avons mené cette étude, axée sur la caractérisation physico chimique et la valorisation des boues de la station d'épuration des eaux usées et domestiques de Bouira, en vue d'une réutilisation potentielle dans la fabrication de membranes céramiques tubulaires destinées à la filtration des effluents industriels. Les résultats de caractérisation des cendres issues de la calcination de la boue du lit de séchage à différentes températures, ont révélé qu'elles possèdent des compositions chimiques riches en oxydes métallique et des phases minéralogiques intéressantes ainsi que des comportements rhéologiques importantes pour la réalisation des pates céramiques. De plus, cette étude a montré que l'utilisation de ces boues comme matière première, mélangées avec une quantité d'argile (50 % de boue et 50% d'argile) et d'additifs organiques, permet de produire des supports membranaires céramiques présentant des propriétés mécaniques significatives (résistance mécanique de 18 MPa) et une bonne perméabilité à l'eau, ce qui facilite le dépôt d'une membrane sur leur surface intérieur et d'obtenir une membrane céramique de microfiltration après frittage, possédant une bonne perméabilité de 282,9 L/h m².bar. Par ailleurs, la membrane obtenue a montré une efficacité notable dans le traitement d'un effluent laitier provenant d'une entreprise de production de lait dans la wilaya de Bouira, avec une réduction de sa turbidité de 98 % après microfiltration, ainsi qu'une bonne efficacité dans la rétention des nitrates (82%), des Nitrites (80 %) et des orthophosphates (68 %), même avec l'augmentation de la pression transmembranaire de 0 et 5 bars. Ces résultats soulignent l'importance de la valorisation de ces boues dans la fabrication de membranes céramiques, afin de limiter l'exploitation excessive des ressources naturelles et de réduire la pollution atmosphérique