Etude Du Comportement De Linterface Milieu Granulaire Et Inclusion Par Une Approche Multi Echelle

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Etude du comportement de l'interface milieu granulaire et inclusion par une approche multi-échelle

Author : Cécile Claquin
Publisher :
ISBN 13 :
Total Pages : 263 pages
Book Rating : 4.:/5 (492 download)

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Book Synopsis Etude du comportement de l'interface milieu granulaire et inclusion par une approche multi-échelle by : Cécile Claquin

Download or read book Etude du comportement de l'interface milieu granulaire et inclusion par une approche multi-échelle written by Cécile Claquin and published by . This book was released on 2003 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'interaction sol-structure a fait l'objet de nombreuses études aussi bien expérimentales, numériques que théoriques, mais en considérant généralement le problème à son échelle globale. Cette zone d'interface, lieu de cisaillement entre le sol et la structure, ne fait intervenir qu'une faible épaisseur de sol, mais est d'une grande importance pour la stabilité des ouvrages. D'autre part, la nature discrète du milieu granulaire qu'est le sol, est un facteur essentiel pour la compréhension du comportement d'interface. L'étude du comportement d'interface à l'échelle des grains est désormais envisageable du fait de l'essor des moyens informatiques qui a favorisé le développement de codes de calculs discrets de plus en plus performants. Dans ce mémoire sont étudiées les effets sur le comportement en cisaillement et d'interface des paramètres spécifiques au milieu granulaire et à l'inclusion. L'effet de la granularité (plus ou moins étalée) du matériau sur sa structure et son comportement est ainsi analysé. L'influence de la géométrie des particules est étudiée en considérant des grains elliptiques plus ou moins allongés. Enfin, l'influence de la loi de contact (élastique linéaire ou non linaire frottant) est considérée, sachant qu'une loi élastique non-linéaire est plus réaliste physiquement, surtout pour des contacts entre particules de dimensions différentes. Pour ce qui concerne l'influence sur le comportement d'interface de l'inclusion, cette dernière est ici caractérisée par une double rugosité : de surface (caractérisée par le coefficient de frottement) et géométrique (modélisée par des motifs triangulaires). L'ensemble de ces points est analysé dans un premier temps par des simulations numériques d'essais biaxiaux ou de cisaillement annulaire à l'aide du code de calcul discret PFC2D basé sur la Méthode des Éléments Distincts. Les techniques de passage micro-macro, ou approches par homogénéisation, se proposent de décrire la loi de comportement global de milieu granulaire par des considérations à l'échelle des particules. Ainsi les observations concernant les structures granulaires étudiées par le code de calcul discret, servent-elles de bases aux développements d'approches d'homogénéisation qui tiennent compte de la forme des particules, de la non-linéarité de la loi de contact, de la granularité du milieux, et de l'influence de la géométrie de l'inclusion. Les résultats de ces approches théoriques, en terme de caractéristiques globales sont confrontés pour validation aux résultats issus de simulations numériques discrètes d'essais de cisaillement annulaire et biaxiaux.

Terra 2008

Author : Leslie Rainer
Publisher : Getty Publications
ISBN 13 : 1606060430
Total Pages : 438 pages
Book Rating : 4.6/5 (6 download)

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Book Synopsis Terra 2008 by : Leslie Rainer

Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.

Bio-aggregate-based Building Materials

Author : Sofiane Amziane
Publisher : John Wiley & Sons
ISBN 13 : 111857706X
Total Pages : 332 pages
Book Rating : 4.1/5 (185 download)

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Book Synopsis Bio-aggregate-based Building Materials by : Sofiane Amziane

Download or read book Bio-aggregate-based Building Materials written by Sofiane Amziane and published by John Wiley & Sons. This book was released on 2013-02-05 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using plant material as raw materials for construction is a relatively recent and original topic of research. This book presents an overview of the current knowledge on the material properties and environmental impact of construction materials made from plant particles, which are renewable, recyclable and easily available. It focuses on particles and as well on fibers issued from hemp plant, as well as discussing hemp concretes. The book begins by setting the environmental, economic and social context of agro-concretes, before discussing the nature of plant-based aggregates and binders. The formulation, implementation and mechanical behavior of such building materials are the subject of the following chapters. The focus is then put upon the hygrothermal behavior and acoustical properties of hempcrete, followed by the use of plant-based concretes in structures. The book concludes with the study of life-cycle analysis (LCA) of the environmental characteristics of a banked hempcrete wall on a wooden skeleton. Contents 1. Environmental, Economic and Social Context of Agro-Concretes, Vincent Nozahic and Sofiane Amziane. 2. Characterization of Plant-Based Aggregates. Vincent Picandet. 3. Binders, Gilles Escadeillas, Camille Magniont, Sofiane Amziane and Vincent Nozahic. 4. Formulation and Implementation, Christophe Lanos, Florence Collet, Gérard Lenain and Yves Hustache. 5. Mechanical Behavior, Laurent Arnaud, Sofiane Amziane, Vincent Nozahic and Etienne Gourlay. 6. Hygrothermal Behavior of Hempcrete, Laurent Arnaud, Driss Samri and Étienne Gourlay. 7. Acoustical Properties of Hemp Concretes, Philippe Glé, Emmanuel Gourdon and Laurent Arnaud. 8. Plant-Based Concretes in Structures: Structural Aspect – Addition of a Wooden Support to Absorb the Strain, Philippe Munoz and Didier Pipet. 9. Examination of the Environmental Characteristics of a Banked Hempcrete Wall on a Wooden Skeleton, by Lifecycle Analysis: Feedback on the LCA Experiment from 2005, Marie-Pierre Boutin and Cyril Flamin. About the Authors Sofiane Amziane is Professor and head of the Civil Engineering department at POLYTECH Clermont-Ferrand in France. He is also in charge of the research program dealing with bio-based building materials at Blaise Pascal University (Institut Pascal, Clermont Ferrand, France). He is the secretary of the RILEM Technical Committee 236-BBM dealing with bio-based building materials and the author or co-author of over one hundred papers in scientific journals such as Cement and Concrete Research, Composite Structures or Construction Building Materials as well as international conferences. Laurent Arnaud is a Bridges, Waters and Forestry Engineer (Ingénieur des Ponts, Eaux et Forêts) and researcher at Joseph Fourier University in Grenoble, France. He is also Professor at ENTPE (Ecole Nationale des Travaux Publics de l’Etat). Trained in the field of mechanical engineering, his research has been directed toward the characterization and development of new materials for civil engineering and construction. He is head of the international committee at RILEM – BBM, as well as the author of more than one hundred publications, and holder of an international invention patent.

Applied Mineralogy in the Mining Industry

Author : W. Petruk
Publisher : Elsevier
ISBN 13 : 0080527337
Total Pages : 287 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Applied Mineralogy in the Mining Industry by : W. Petruk

Download or read book Applied Mineralogy in the Mining Industry written by W. Petruk and published by Elsevier. This book was released on 2000-11-29 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques of performing applied mineralogy investigations, and applications and capabilities of recently developed instruments for measuring mineral properties are explored in this book intended for practicing applied mineralogists, students in mineralogy and metallurgy, and mineral processing engineers. The benefits of applied mineralogy are presented by using in-depth applied mineralogy studies on base metal ores, gold ores, porphyry copper ores, iron ores and industrial minerals as examples. The chapter on base metal ores includes a discussion on the effects of liberation, particle sizes and surfaces coatings of Pb, Cu, Fe, Ca and So4- on the recoveries of sphalerite, galena and chalcopyrite. The chapter on gold discusses various methods of determining the quantities of gold in different minerals, including 'invisible' gold in pyrite and arsenopyrite, so that a balance of the distribution of gold among the minerals can be calculated. This book also discusses the roles of pyrite, oxygen, moisture and bacterial (thiobacillus ferrooxidans) on reactions that produce acidic drainage from tailings piles, and summarizes currently used and proposed methods of remediation of acidic drainage.

Routledge International Handbook of Ignorance Studies

Author : Matthias Gross
Publisher : Routledge
ISBN 13 : 1317964675
Total Pages : 427 pages
Book Rating : 4.3/5 (179 download)

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Book Synopsis Routledge International Handbook of Ignorance Studies by : Matthias Gross

Download or read book Routledge International Handbook of Ignorance Studies written by Matthias Gross and published by Routledge. This book was released on 2015-05-15 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Once treated as the absence of knowledge, ignorance today has become a highly influential topic in its own right, commanding growing attention across the natural and social sciences where a wide range of scholars have begun to explore the social life and political issues involved in the distribution and strategic use of not knowing. The field is growing fast and this handbook reflects this interdisciplinary field of study by drawing contributions from economics, sociology, history, philosophy, cultural studies, anthropology, feminist studies, and related fields in order to serve as a seminal guide to the political, legal and social uses of ignorance in social and political life. Chapter 33 of this book is freely available as a downloadable Open Access PDF under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license available here: https://tandfbis.s3-us-west-2.amazonaws.com/rt-files/docs/Open+Access+Chapters/9780415718967_oachapter33.pdf

Vortex Dominated Flows

Author : Denis L. Blackmore
Publisher : World Scientific
ISBN 13 : 9812563202
Total Pages : 299 pages
Book Rating : 4.8/5 (125 download)

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Book Synopsis Vortex Dominated Flows by : Denis L. Blackmore

Download or read book Vortex Dominated Flows written by Denis L. Blackmore and published by World Scientific. This book was released on 2005 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Honoring the contributions of one of the field's leading experts, Lu Ting, this indispensable volume contains important new results at the cutting edge of research. A wide variety of significant new analytical and numerical results in critical areas are presented, including point vortex dynamics, superconductor vortices, cavity flows, vortex breakdown, shock/vortex interaction, wake flows, magneto-hydrodynamics, rotary wake flows, and hypersonic vortex phenomena.The book will be invaluable for those interested in the state of the art of vortex dominated flows, both from a theoretical and applied perspective.Professor Lu Ting and Joe Keller have worked together for over 40 years. In their first joint work entitled ?Periodic vibrations of systems governed by nonlinear partial differential equations?, perturbation analysis and bifurcation theory were used to determine the frequencies and modes of vibration of various physical systems. The novelty was the application to partial differential equations of methods which, previously, had been used almost exclusively on ordinary differential equations. Professsor Lu Ting is an expert in both fluid dynamics and the use of matched asymptotic expansions. His physical insight into fluid flows has led the way to finding the appropriate mathematical simplications used in the solutions to many difficult flow problems.

Instabilities in Multiphase Flows

Author : A. Berlemont
Publisher :
ISBN 13 : 9781489915955
Total Pages : 356 pages
Book Rating : 4.9/5 (159 download)

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Book Synopsis Instabilities in Multiphase Flows by : A. Berlemont

Download or read book Instabilities in Multiphase Flows written by A. Berlemont and published by . This book was released on 2014-01-15 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Geology and Geotechnical Properties of Laterite Gravel

Author : Ellis L. Krinitzsky
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Geology and Geotechnical Properties of Laterite Gravel by : Ellis L. Krinitzsky

Download or read book Geology and Geotechnical Properties of Laterite Gravel written by Ellis L. Krinitzsky and published by . This book was released on 1976 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Parallel Computing

Author : Barbara Chapman
Publisher : IOS Press
ISBN 13 : 1607505290
Total Pages : 760 pages
Book Rating : 4.6/5 (75 download)

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Book Synopsis Parallel Computing by : Barbara Chapman

Download or read book Parallel Computing written by Barbara Chapman and published by IOS Press. This book was released on 2010 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: From Multicores and GPUs to Petascale. Parallel computing technologies have brought dramatic changes to mainstream computing the majority of todays PCs, laptops and even notebooks incorporate multiprocessor chips with up to four processors. Standard components are increasingly combined with GPUs Graphics Processing Unit, originally designed for high-speed graphics processing, and FPGAs Free Programmable Gate Array to build parallel computers with a wide spectrum of high-speed processing functions. The scale of this powerful hardware is limited only by factors such as energy consumption and thermal control. However, in addition to"

Digital Transformation in Financial Services

Author : Claudio Scardovi
Publisher : Springer
ISBN 13 : 3319669451
Total Pages : 242 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Digital Transformation in Financial Services by : Claudio Scardovi

Download or read book Digital Transformation in Financial Services written by Claudio Scardovi and published by Springer. This book was released on 2017-09-04 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book analyzes the set of forces driving the global financial system toward a period of radical transformation and explores the transformational challenges that lie ahead for global and regional or local banks and other financial intermediaries. It is explained how these challenges derive from the newly emerging post-crisis structure of the market and from shadow and digital players across all banking operations. Detailed attention is focused on the impacts of digitalization on the main functions of the financial system, and particularly the banking sector. The author elaborates how an alternative model of banking will enable banks to predict, understand, navigate, and change the external ecosystem in which they compete. The five critical components of this model are data and information mastering; effective use of applied analytics; interconnectivity and “junction playing”; development of new business solutions; and trust and credibility assurance. The analysis is supported by a number of informative case studies. The book will be of interest especially to top and middle managers and employees of banks and financial institutions but also to FinTech players and their advisers and others.

Rock Mechanics and Engineering Volume 2

Author : Xia-Ting Feng
Publisher : CRC Press
ISBN 13 : 1315319608
Total Pages : 646 pages
Book Rating : 4.3/5 (153 download)

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Book Synopsis Rock Mechanics and Engineering Volume 2 by : Xia-Ting Feng

Download or read book Rock Mechanics and Engineering Volume 2 written by Xia-Ting Feng and published by CRC Press. This book was released on 2017-07-12 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory and Field Testing is the second volume of the five-volume set Rock Mechanics and Engineering and contains nineteen chapters from key experts in the following fields: - Triaxial or True-triaxial Tests under Condition of Loading and Unloading; - Joint Tests; - Dynamic and Creep Tests; - Physical Modeling Tests; - Field Testing and URLs. The five-volume set “Comprehensive Rock Engineering”, which was published in 1993, has had an important influence on the development of rock mechanics and rock engineering. Significant and extensive advances and achievements in these fields over the last 20 years now justify the publishing of a comparable, new compilation. Rock Mechanics and Engineering represents a highly prestigious, multi-volume work edited by Professor Xia-Ting Feng, with the editorial advice of Professor John A. Hudson. This new compilation offers an extremely wideranging and comprehensive overview of the state-of-the-art in rock mechanics and rock engineering and is composed of peer-reviewed, dedicated contributions by all the key experts worldwide. Key features of this set are that it provides a systematic, global summary of new developments in rock mechanics and rock engineering practices as well as looking ahead to future developments in the fields. Contributors are worldrenowned experts in the fields of rock mechanics and rock engineering, though younger, talented researchers have also been included. The individual volumes cover an extremely wide array of topics grouped under five overarching themes: Principles (Vol. 1), Laboratory and Field Testing (Vol. 2), Analysis, Modelling and Design (Vol. 3), Excavation, Support and Monitoring (Vol. 4) and Surface and Underground Projects (Vol. 5). This multi-volume work sets a new standard for rock mechanics and engineering compendia and will be the go-to resource for all engineering professionals and academics involved in rock mechanics and engineering for years to come.

A Guide To Soil Mechanics

Author : Malcolm D Bolton
Publisher : Universities Press
ISBN 13 : 9788173714252
Total Pages : 464 pages
Book Rating : 4.7/5 (142 download)

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Book Synopsis A Guide To Soil Mechanics by : Malcolm D Bolton

Download or read book A Guide To Soil Mechanics written by Malcolm D Bolton and published by Universities Press. This book was released on 2013 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers all the soil mechanics and foundation engineering topics that are commonly included in civil engineering degree courses, and provides a number of springboards into related advanced topics. Although it is intended principally to satisfy the needs of student civil engineers, this guide should also prove useful to those practicing engineers who are unaware of the powerful and elegant reconstruction of the subject which has been made possible by the recent concepts of plasticity, dilatancy and critical states.

Modelling Fluid Flow

Author : János Vad
Publisher : Springer Science & Business Media
ISBN 13 : 3662087979
Total Pages : 424 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis Modelling Fluid Flow by : János Vad

Download or read book Modelling Fluid Flow written by János Vad and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modelling Fluid Flow presents invited lectures, workshop summaries and a selection of papers from a recent international conference CMFF '03 on fluid technology. The lectures follow the current evolution and the newest challenges of the computational methods and measuring techniques related to fluid flow. The workshop summaries reflect the recent trends, open questions and unsolved problems in the mutually inspiring fields of experimental and computational fluid mechanics. The papers cover a wide range of fluids engineering, including reactive flow, chemical and process engineering, environmental fluid dynamics, turbulence modelling, numerical methods, and fluid machinery.

Clinical Chronopharmacology

Author : Alain Reinberg
Publisher : CRC Press
ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Clinical Chronopharmacology by : Alain Reinberg

Download or read book Clinical Chronopharmacology written by Alain Reinberg and published by CRC Press. This book was released on 1990-07 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodical and predictable changes in biological susceptibility and response to a large variety of chemical agents, including drugs and food, have been documented since the early 1970s. This book provides a survey of clinically-documented research in chronopharmacology.

Enhanced Abutment Scour Studies for Compound Channels

Author : Terry W. Sturm
Publisher : DIANE Publishing
ISBN 13 : 1428995048
Total Pages : 147 pages
Book Rating : 4.4/5 (289 download)

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Book Synopsis Enhanced Abutment Scour Studies for Compound Channels by : Terry W. Sturm

Download or read book Enhanced Abutment Scour Studies for Compound Channels written by Terry W. Sturm and published by DIANE Publishing. This book was released on 2004 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results and analyses are given in this report on bridge abutment scour in compound channels. Experiments were conducted in a laboratory flume with a cross section consisting of a wide floodplain adjacent to a main channel. The embankment length, discharge, sediment size, and abutment shape were varied, and the resulting equilibrium scour depths were measured. Water-surface profiles, velocities, and scour-hole contours were also measured. In the report, a methodology is developed for estimating abutment scour that takes into account the redistribution of discharge in the bridge contraction, abutment shape, sediment size, and tailwater depth. The independant variables in the proposed scour formula are evaluated at the approach-channel cross section and can be obtained froma one-dimensional water-surface profile computer program such as the Water-Surface Profile Program (WSPRO). The proposed scour evaluation procedure is outlined and illustrated, including consideration of the time required to reach equilibrium scour. The proposed methodology is applied to two cases of measured scour in the field.

Simply This... Amen.

Author : Donna McLin
Publisher :
ISBN 13 : 9781701917064
Total Pages : 382 pages
Book Rating : 4.9/5 (17 download)

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Book Synopsis Simply This... Amen. by : Donna McLin

Download or read book Simply This... Amen. written by Donna McLin and published by . This book was released on 2019-12 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This prayer book was written over a two-year span. The prayers started one night when my daughter and I could not sync our time to pray together on one particular night in March 2017. While preparing for bed, the Lord said to me, "Just write a prayer and put it on Facebook". I did and the rest is history. You are now holding what it is that the Lord has done with these prayers. Each night with the exception of being away from home with no phone service, or during times of fasting, I wrote a prayer each night and posted them on Facebook. I have been told by many people along the way that they do not know how to pray. It is my prayer that this book will be a foundation for those who feel that they do not know how to pray or who simply need a prayer devotional.

Minimum competence in scientific English

Author : Sue Blattes
Publisher : L'Editeur : EDP Sciences
ISBN 13 : 9782868835888
Total Pages : 264 pages
Book Rating : 4.8/5 (358 download)

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Book Synopsis Minimum competence in scientific English by : Sue Blattes

Download or read book Minimum competence in scientific English written by Sue Blattes and published by L'Editeur : EDP Sciences. This book was released on 2003 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage, devenu célèbre sous son sigle MCSE, a déjà été utilisé par plus de 50 000 étudiants, chercheurs, professionnels. L'objectif est de lire et écrire des textes en anglais scientifique avec facilité et pertinence. L'ouvrage est conçu pour que l'apprenant devienne un véritable utilisateur de l'anglais. La méthode originale repose sur l'analyse des fonctions et structures nécessaires : measurement, frequency, comparison, modification, link words, time, cause and consequence, hypothesis, modality, purpose and process, impersonal forms, compound nouns and adjectives. Dans chaque unit, des tests d'auto-évaluation permettent de se situer et de construire son parcours de formation, d'abord en définissant ses objectifs à l'aide des key points et du lexis, puis, de façon plus personnalisée, en puisant dans les examples in context, checkpoints (back to basics, word web), web search, FAQs... MCSE est l'outil de base d'une méthode qui comprend aussi d'autres outils dans la même collection (Listening Comprehension for Scientiflc English et Speaking Skills in Scientitic English). L'ouvrage est destiné à tout apprenant de niveau baccalauréat qui désire acquérir une réelle compétence dans l'écriture et la lecture de textes en anglais scientifique.