http://dspace.univ-djelfa.dz:8080/xmlui/handle/123456789/5 2026-06-08T19:58:30Z 2026-06-08T19:58:30Z MEGATELI, Sara http://dspace.univ-djelfa.dz:8080/xmlui/handle/112/8265 2026-06-08T19:57:44Z 2026-04-29T00:00:00Z

Chemistryof solutions MEGATELI, Sara PREFACE This course is intended for second year students engineering process.it provides a comprehensive introduction to the fundament principles of Chemistry of solutions, organized into five chapters The course encompasses the core componenets of the official curriculum in solution chemistry, specifically tailored to this level of study.it is developed based on established reference materials in the field and incorporates selected pratical applications to reinforce theoretical concepts. The primary objective of this course is to enable students to acquire a solid mastery of solution chemistry. By the expected to be capable of performing the necessary calculations and providing accurate interpretations essential for thorough understanding of phenomena occurring in solutions. Furthermore, the course aims to establish a strong conceptual foundation for analyzing the mechanisms governing equilibrium in aqueous systems.

2026-04-29T00:00:00Z ZAOUAI, Said http://dspace.univ-djelfa.dz:8080/xmlui/handle/112/8240 2026-06-03T12:54:06Z 2025-11-12T00:00:00Z

Ethical dimension and professional conduct (the foundations) ZAOUAI, Said Course Overview The Algerian University has experienced very strong growth in all its main indicators, as shown by the number of university institutions and their geographical distribution, the number of students and graduates, the diversification of training courses and scientific research activity. As a result, this densification of the university space has raised several questions. However, it is important to remember that the purpose of the university is to promote scientific knowledge on the one hand and universal values on the other. It is in this spirit that the pedagogues of recent years have proposed the opening of a student-teacher dialogue and have suggested the establishment of know-how related to ethics and deontology. Course Objectives At the student level, the main objective of this course is to facilitate an individual's immersion in student life and his or her transition into a responsible adult. At the teacher level, this course allows a reflection on the standards that define the concrete obligations to which all actors and the teacher are subject. These standards should be defined and consolidated into a code of ethics that would facilitate teachers' decision-making by putting in place rules, recommendations and procedures.

2025-11-12T00:00:00Z TAHIRI, Antar http://dspace.univ-djelfa.dz:8080/xmlui/handle/112/8219 2026-06-01T09:10:05Z 2026-04-29T00:00:00Z

Polycopy of courses Mechanical Construction II Intended for 3rd Year Undergraduate Students. Option: Mechanical Construction TAHIRI, Antar Preface This mechanical construction course is intended for third-year undergraduate students who have chosen the mechanical engineering track with a specialization in mechanical construction. It corresponds to the Construction Mechanical (II) module: Semester: 6 Subject: Mechanical construction II Course Unit: UEF Hours: 67 (Lectures: 3 hours, Tutorials: 1.5 hours) Credits: 6 Coefficient: 3 This course is a continuation of the CM1 curriculum and focuses primarily on the sizing calculations for the main motion transmission components of machines (gears, bearings, shafts, etc.), as well as the general technological study of mechanisms (reducers, gearboxes, etc.). It is written in a simplified style, with exercises at the end of each chapter that I believe are helpful for understanding the course content. This course equips students with the ability to analyze and calculate the various components of a machine. The content of this course material is structured into five chapters. Chapter 1 is devoted to gears, studying geometric characteristics of gears for different types, namely cylindrical gears with straight teeth, helical gears, bevel gears with straight teeth and helical teeth, and finally the worm and wheel. The processes for obtaining them and the cutting of gears are also part of this chapter. Chapter 2 is devoted to the dynamic study of surface pressure and breaking strength for cylindrical gears (straight and helical teeth). The study of shafts and axles under various stresses, including traction and compression, shear, torsion, and bending, occupies Chapter 3. The calculation of the preliminary diameter of the axles and shafts, as well as the verification of the shafts and axles for fatigue, is studied. Chapter 4 is dedicated to the study of bearings and thrust bearings as well as belt and chain transmission systems. We are looking for their essential characteristics such as length, transmission ratio and center distance already studied. Chapter 5 is devoted to the technological applications of the elements studied previously, namely: reducers, gearboxes and epicyclic gear trains, their description and operation, as well as their kinematic diagrams. ii Chapter 6 is devoted to general concepts of couplings. Their types and functions are examined. The different types of clutches and brakes are discussed. Finally, this course conforms to the curriculum adopted by the Ministry of Higher Education and Scientific Research; it contributes to the improvement of mechanical engineering education

2026-04-29T00:00:00Z HADJI, Tarek http://dspace.univ-djelfa.dz:8080/xmlui/handle/112/8196 2026-05-17T08:18:28Z 2025-11-12T00:00:00Z

Cours de La Méthode des Plans d’Expériences HADJI, Tarek Avant-propos a méthode des plans d’expériences, ou Design of Experiments (DoE), constitue aujourd’hui un pilier essentiel dans la conduite des essais scientifiques et techniques, en particulier dans les domaines liés aux matériaux de construction. Elle permet non seulement d'optimiser les ressources expérimentales, mais aussi de mieux comprendre les interactions complexes entre les paramètres influençant le comportement des matériaux. Ce polycopié s’adresse aux étudiants du Master 2 Génie Civil, spécialité Matériaux en génie civil, et vise à leur fournir une formation structurée et progressive à cette méthode, en lien direct avec les besoins de la recherche appliquée et de l’ingénierie.

2025-11-12T00:00:00Z