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Integral Bridges. A fundamental approach to the time-temperature loading problem

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“Être soi-même ne devrait jamais poser problème”

Liberté d’expression, discrimination positive, morale : Vitaly Malkin décortique les grands enjeux de notre temps. Né en URSS, il a vécu mille vies : ingénieur, physicien, banquier, homme politique, philanthrope. Ici, il livre son regard lucide sur le monde et, indéniablement, vise juste !  

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Livres, actualités : tout sur Virginia Woolf

Née Adeline Virginia Alexandra Stephen en 1882, Virginia Woolf grandit dans une famille aisée, où elle dispose d'un accès facilité à l'art et à la culture de son époque. Les disparitions de sa mère, en 1895, de sa demi-sœur puis de son père fragilisent toutefois son état émotionnel : elle devient sujette aux dépressions nerveuses. En 1915, elle publie son premier roman, The Voyage Out, après quelques années d'activité au sein du supplément littéraire du Times. 

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Livres, actualités : tout sur Guillaume Musso

Né le 6 juin 1974 à Antibes, Guillaume Musso est un habitué, depuis plusieurs années, des classements des meilleures ventes. Pourtant, son premier livre, Skidamarink, publié en 2001, reste sous les radars : il lui faudra attendre Et après..., publié en 2004 chez XO Éditions pour accéder à un plus grand nombre de lecteurs. C'est un succès, porté au cinéma en 2009 avec au casting John Malkovich, Romain Duris ou encore Evangeline Lilly...

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Mangas.io : l’avenir du manga numérique ?

Une application pour lire ses mangas en illimité et légalement : la communauté l’attend depuis des années. Cependant, aucune solution ne semble pour l’instant satisfaire les millions de lecteurs pirates français... Mais grâce à son système à l’abonnement, Mangas.io tente de faire évoluer le marché du manga numérique. 

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Romans, nouveautés : les livres de Laetitia Colombani

Cinéaste, scénariste, comédienne et romancière, Laetitia Colombani s’apprête à réaliser au cinéma le film tiré de son premier roman La Tresse (Grasset, 2017), co-production internationale dont la sortie est prévue en 2022. Elle est également l’auteure des Victorieuses, best-seller en cours d’adaptation en série. L’album jeunesse Les Victorieuses, ou le palais de Blanche est également publié chez Grasset en juin 2021.

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Quand la littérature devient enchantement

L’émerveillement ouvrirait ce qui est fermé. Souvent il passe par l’étonnement, la découverte. Sortir des sentiers battus, voilà un des grands moyens de l’éblouissement, ce dont sont capables les artistes. Parmi eux, les auteurs, grâce à leur style, leur propension à prendre le problème par un bout qui échappe à tout le monde, ou à leur trait de crayon.

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Technologies

Integral Bridges. A fundamental approach to the time-temperature loading problem

Integral bridges have become increasingly popular in the UK over recent years. Problems and costs associated with failed expansion joints in conventional bridges not only make integral bridges a cost-effective option but also means they have longer lifespans that their counterparts. The Highways Agency standards now require that, wherever possible, all new bridges of less than 60 m length should be of integral form. The growing importance of integral bridges has highlighted the need for more information and guidance to assist in improving bridge design. This book presents the results of research commissioned by the Highways Agency into the thermally induced soil/structure interaction created by environmental temperature changes and the associated cyclical displacements imposed on the granular backfill of bridge abutments. It : develops a better theoretical understanding of temperature-induced cyclic displacements ; in particular the strain ratcheting in backfill soil in contact with a 'stiff' structure, identifies the governing soil parameters and examines their influence, develops numerical modelling procedures to predict soil behaviour, identifies and quantifies the controlling features of bridge structures relevant to the interaction problem This book provides essential information for bridge designers to aid their understanding of the cyclical changes in backfill pressures and settlement due to diurnal and annual changes in bridge deck temperature - a crucial factor when designing integral bridges.

01/2000

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Physique, chimie

MECHANICS OF MATERIALS. 5th edition

Since 1960, this leading text has taught thousands of students the fundamentals of non rigid body mechanics. Now, the new author team of Riley, Sturges, and Morris have revised the text to appeal to today's students by updating the illustration program, adding design content, and including more realistic problem sets. The fifth edition is written in a clear and concise style and contains new illustrations throughout each chapter. The text stresses the use of fundamental principles and the concepts of mechanics to solve all problems. As a result, students must apply the information presented in each chapter to answer realistic problems instead of simply using formulas. This problem solving method motivates students to learn the material because they see how it is used in the real world. New Features of the Fifth Edition * A new introductory chapter containing a "Review of Statics" has been included. * Chapter 2 is reorganized to conform with the greater use of the stress transformation and principal stress equations in engineering practice. * Numerous example problems are used to show methods of analysis for typical mechanics of materials problems. Hints have been added to most of these example problems to help students understand the thought process required for their solution. * Each chapter concludes with a section on design. * Design Example problems and Design Homework problems have been added to most chapters. * There are over 1300 homework problems, many of which require the use of the computer for their solution.

01/1999

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Religion

Problème fondamental

Ce livre vous aidera à comprendre pourquoi les prières et le jeûne révèlent des secrets fondamentaux cachés.

01/2021

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Histoire et Philosophiesophie

Thinking about Physics

Physical scientists are problem solvers. They are comfortable "doing" science: they find problems, solve them, and explain their solutions. Roger Newton believes that his fellow physicists might be too comfortable with their roles as solvers of problems. He argues that physicists should spend more time thinking about physics. If they did, he believes, they would become even more skilled at solving problems and "doing" science. As Newton points out in this thought-provoking book, problem solving is always influenced by the theoretical assumptions of the problem solver. Too often, though, he believes, physicists haven't subjected their assumptions to thorough scrutiny. Newton's goal is to provide a framework within which the fundamental theories of modem physics can be explored, interpreted, and understood. "Surely physics is more than a collection of experimental results, assembled to satisfy the curiosity of appreciative experts," Newton writes. Physics, according to Newton, has moved beyond the describing and naming of curious phenomena, which is the goal of some other branches of science. Physicists have spent a great part of the twentieth century searching for explanations of experimental findings. Newton agrees that experimental facts are vital to the study of physics, but only because they lead to the development of a theory that can explain them. Facts, he argues, should undergird theory. Newton's explanatory sweep is both broad and deep. He covers such topics as quantum mechanics, classical mechanics, field theory, thermodynamics, the role of mathematics in physics, and the concepts of probability and causality. For Newton the fundamental entity in quantum theory is the field, from which physicists can explain the particle-like and wave-like properties that are observed in experiments. He grounds his explanations in the quantum field. Although this is not designed as a standalone textbook, it is essential reading for advanced undergraduate students, graduate students, professors, and researchers. This is a clear, concise, up-to-date book about the concepts and theories that underlie the study of contemporary physics. Readers will find that they will become better-informed physicists and, therefore, better thinkers and problem solvers, too.

01/2000

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Littérature française

Les inventeurs. Essai

What do Christopher Columbus, Reneke, Zénobe Gramme and Louis Pasteur have in common ? They were all inventors. Well fine, but who invented the crab's claw, the suction cups and the flight of squids or the proboscis of blood sucking insects ? Is invention intellectual fantasy, an industrial tool or a fundamental biological reaction ? How is this riddle to be solved ? Should we go through the list of inventions or inventors ? Is it a question of circumstances or motivations ? Who is in charge ? The Material or the Spirit ? In order to try to find a way of answering these questions, first a few very different inventors and their inventions will be presented. A few paradoxes emerge from this first part. Then we will devote an entire chapter to an exceptional inventor whose extraordinary work revolutionized how we now approach this topic. Finally, what can be said about all the inventions like the wings of birds or butterflies, the eyes of fish or insects, the leaves of trees or the social organization of beehives ? In these cases, man is not the inventor. There are countless marvels like these in the world around us. Can we explain them ? This will be the subject of the third part of this essay.

02/2017

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Mathématiques

Statistical and Data Handling Skills in Biology

All biologists need to be able to handle numbers, yet students of biology often approach this topic fearfully. This guide helps to, develop key skills for the study of biology in the minimum time through guided practise. Statistical and Data Handling Skills in Biology is an easy-to-use handbook which concentrates on essentials. It explains why certain mathematical concepts can help in biology and describes them in simple language and pictures with few equations. Numerous worked examples and problems from real biological situations are provided. The book first shows how to handle numbers and S.I. units. It then explains why variation is such a problem in biology and shows how to use statistical tests to separate real effects from the background variation. Finally it explains how to choose appropriate statistical tests to, analyse data and how to improve the design of experiments. Students will develop confidence in dealing with numbers by working through the problems provided. Key features include: - takes a biological viewpoint; - clear, concise coverage of essential concepts; - helpful explanations and pictures with a minimum of equations; - step-by-step guides to statistical tests; - guidance on using computer-based statistical packages; - decision charts for choosing statistical tests; - worked examples and problems, with solutions provided. This book makes an ideal companion for biologists at all levels, as a text for elementary courses for sixth form and first year undergraduate students, a self-study guide, or as a laboratory handbook for the working biologist.

01/2000

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