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    Polycopié de cours et applications: Langue et communication2
    (HIGHER SCHOOL IN APPLIED SCIENCES TLEMCEN, 2025)
    MIMOUNI née BELHOUCINE, Faiza
    Dans un monde en constante évolution, où les technologies avancent à un rythme sans précédent, et où les échanges d'informations s'accélèrent constamment, la capacité à communiquer de manière claire et efficace est devenue une compétence indispensable. En effet, la formation des ingénieurs doit s‟adapter aux nouvelles exigences du marché. Les ingénieurs d‟aujourd‟hui doivent non seulement posséder des compétences techniques mais aussi être capables de communiquer efficacement leurs idées, d‟analyser des données complexes et de travailler en équipe. Pour les élèves ingénieurs, la maîtrise de la langue et des techniques de communication revêt une importance cruciale, non seulement pour leur réussite académique mais également pour leur future insertion professionnelle. Il est essentiel de reconnaître que la communication, souvent considérée comme un domaine des sciences humaines, joue également un rôle crucial dans la réussite des projets techniques et scientifiques. En effet, savoir expliquer un problème de manière claire, rédiger un écrit, interpréter des documents… est fondamentale dans le secteur de l'ingénierie. Que ce soit pour rédiger des rapports, animer des réunions ourediger et présenter des projets à un public non spécialisé, les ingénieurs doivent constamment démontrer leurs compétences en communication. C'est dans ce cadre que le module "Langue et communication 2" revêt toute son importance, en fournissant aux futurs ingénieurs les outils nécessaires pour s'exprimer avec précision, clarté et pertinence dans leur environnement professionnel. Donc, la communication est au cœur du travail d‟ingénieur. Que ce soit lors de la présentation d‟un projet, dans la rédaction d‟un rapport technique ou dans des échanges avec des collègues et des clients, la capacité à transmettre clairement ses idées est essentielle. Ce programme mettra l‟accent sur l‟importance d‟une communication efficace, tant à l‟écrit qu‟à l‟oral, afin que ces élèves-ingénieurs puissent se démarquer. En effet, ce module vise à développer non seulement des compétences linguistiques, mais aussi à renforcer la réflexion critique, la structuration des idées et la communication interpersonnelle. Ainsi, il prépare les étudiants à relever les défis professionnels qui les attendent dans le monde du travail. Ce module semestriel (semestre 2) destiné aux élèves-ingénieurs de la première année du second cycle, d'une durée hebdomadaire d'une heure et trente minutes, est conçu comme une suite des compétences acquises au premier semestre (Langue et communication 1). Dans ce programme, l'accent a été mis sur la formation des étudiants aussi bien sur le plan intellectuel que sur le plan interpersonnel, par le biais de la sensibilisation aux enjeux de la communication dans un cadre académique et professionnel. À travers des activités pratiques3 telles que la rédaction de documents académiques et professionnels, l'analyse de documents spécialisés et l'apprentissage de la synthèse d'informations, les étudiants sont préparés à affronter les défis de la communication. Ce programme a été conçu pour répondre à ces besoins en offrant une formation complète sur la rédaction de synthèse de documents, la production d‟écrits académiques et professionnels, ainsi que l‟analyse critique des documents spécialisés.
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    Chemical Thermodynamics Course for First Year Engineering Students
    (HIGHER SCHOOL IN APPLIED SCIENCES TLEMCEN, 2025)
    DATOUSSAID, Yazid
    This book is primarily intended for students at the beginning of their university studies. It offers a comprehensive course in chemical thermodynamics, accompanied by numerous concrete examples and progressive exercises to promote effective assimilation of the concepts. The book opens with an introduction to chemical thermodynamics, defining the main thermodynamic quantities. It then addresses the two fundamental principles of the discipline, gradually leading to the central notion of chemical potential—a concept introduced by Gibbs—which allows the study of both physical and chemical transformations of matter. The First Law is first applied to thermomechanical transformations, involving heat and work exchanges, and then to chemical reactions, illustrated by numerous examples. These concrete cases, integrated throughout the presentation, offer a clear and practical perspective on the fields of application of thermodynamics. The Second Law introduces the notion of system evolution, before leading to the study of chemical equilibria and their modifications. This final section concludes with various examples of reactions of industrial interest, chosen for their relevance. This manual brings together a solid base of useful numerical data in chemical thermodynamics and offers a wide selection of corrected exercises, allowing the reader to test their knowledge and strengthen their understanding. It is the result of extensive teaching experience, notably acquired in the preparatory cycle of the Higher School of Applied Sciences of Tlemcen, where I teach this subject. I hope this book will provide both rigorous and accessible support for students and teachers alike.
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    LECTURE HANDOUT Computer Networks
    (HIGHER SCHOOL IN APPLIED SCIENCES TLEMCEN, 2026)
    BRAHAMI, Mustapha Anwar
    Mastering computer networks and communication protocols is now an essential skill for any engineer in applied sciences. In an era of interconnected systems, where the fast, reliable, and secure transmission of data has become a necessity, understanding the underlying mechanisms of networks is crucial for designing, operating, and maintaining highperformance infrastructures. This textbook, entitled “Computer networks”, is intended for third-year Electronics students at the École Supérieure en Sciences Appliquées de Tlemcen (ESSA-Tlemcen), where it has been taught since 2023. This course requires prior knowledge in computer tools, computer system architecture, and communication systems.The primary objective of this course is to provide students with a comprehensive understanding of computer networks, their architectures, and the protocols that govern communication between systems. The course addresses not only theoretical concepts but also their implementation in real environments to ensure both conceptual and practical training. The course particularly emphasizes: • The layered architecture of networks and how each layer interacts with the others, • The protocols that ensure various functions (addressing, routing, error control, reliability), • The current technologies and standards used in wired and wireless networks, • Practical application through case studies to develop operational skills. The course content is structured into several progressive chapters, allowing a coherent skillbuilding approach: • Chapter 1: Introduction to Computer Networks This first chapter introduces the fundamental concepts: definitions, objectives, a historical overview of communications and the evolution of the Internet. It also presents the8 different classifications of networks (by geographic scope, topology, speed, and transmission mode), providing a global view of current architectures. • Chapter 2: Layered Architecture and the OSI Model This chapter introduces the principle of layered structuring, the notions of protocol, service, and interface, as well as the advantages of hierarchical architectures. A detailed analysis of the OSI model and its seven functional layers is carried out, highlighting their roles and interactions. • Chapter 3: The Physical Layer This chapter covers the general characteristics of physical transmission, transmission modes, bandwidth and speed, as well as transmission media (cables, optical fibers, wireless links). This part provides the essential hardware foundations for understanding binary communication over a channel. • Chapter 4: The Data Link Layer This chapter highlights the crucial role of this layer in ensuring reliable exchanges. It addresses data encapsulation into frames, error control mechanisms, media access control (CSMA/CD, CSMA/CA, token passing), and physical addressing (MAC). Major protocols such as Ethernet are studied. • Chapter 5: The Network Layer This section deals with logical addressing (IPv4), subnetting concepts, IP routing principles and mechanisms, as well as routing protocols (static and dynamic). This chapter is essential for understanding how data travels through multiple interconnected networks. • Chapter 6: The Transport Layer This part focuses on the TCP and UDP protocols, their characteristics, segmentation concepts, multiplexing/demultiplexing, as well as flow control and transmission reliability. • Chapter 7: Session, Presentation, and Application Layers Finally, this chapter explores the upper layers of the OSI model: session management, data translation, encryption and compression, as well as application services and protocols such as HTTP, FTP, SMTP, DNS.9 Each chapter is accompanied by practical examples to consolidate understanding through the manipulation of studied concepts (frame analysis, IP address configuration, network architecture studies, protocol testing, etc.). This textbook combines theory and practice. Concepts are introduced progressively and illustrated with explanatory diagrams, concrete examples, and exercises. The practical aspect is strongly emphasized, enabling students to apply the concepts studied. In short, this course aims to provide future engineers with a global vision of computer networks while developing their ability to design, configure, and secure interconnected systems.
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    Renewable Energy Systems Modeling and Simulation
    (HIGHER SCHOOL IN APPLIED SCIENCES TLEMCEN, 2026)
    CHEMIDI, Abdelkarim
    This document serves as a course companion for Renewable Energy Systems Modeling and Simulation. The content is divided into four chapters, each addressing specific aspects of this field. Chapter 1 introduces the fundamental concepts and principles underlying renewable energy systems modeling and simulation. Chapter 2 present an overview about Matlab/Simulink environment. Chapters 3 and 4 delve deeper into the modeling of photovoltaic and wind energy conversion systems, respectively. Learning Objectives Upon completion of this course, students will be able to:  Develop proficiency in using MATLAB/Simulink for modeling and simulation tasks.  Apply various modeling techniques to complex electrical systems.  Model and simulate real-world electrical systems with accuracy.
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    Separation techniques in organic chemistry. Support for chemical engineer-Handout On
    (HIGHER SCHOOL IN APPLIED SCIENCES TLEMCEN, 2026)
    CHEMOURI, Hafida
    the content of this handout which describes the Techniques for transforming a mixture of substances into two or more distinct components is intended for engineering students, these techniques are intended for purification (by extraction of impurities from the compound of interest), concentration (by eliminating part of the solvent) or fractionation (by separating a complex mixture into several different mixtures). A separation technique is always based on the use of a difference in properties between the compound of interest (the one we are trying to isolate) and the rest of the mixture. A good knowledge of the properties of the different components is therefore essential in order to retain the method and the parameters that will guarantee a successful separation. The main objective of this handout is to train students in a wide range of skills that will allow them to mix according to their sectors of activity, how to extract the desired product by these separation methods in heavy chemistry, in fine chemistry, in parachemicals, petrochemicals, etc