V. David Lorenzo Скачать все книги 4 Количество книг

An insightful examination of the numerical methods used to develop finite element methods A Variational Approach to Structural Analysis provides readers with the underpinnings of the finite element method (FEM) while highlighting the power and pitfalls of virtual methods. In an easy-to-follow, logical format, this book gives complete coverage of the principle of virtual work, complementary virtual work and energy methods, and static and dynamic stability concepts. The first two chapters prepare the reader with preliminary material, introducing in detail the variational approach used in the book as well as reviewing the equilibrium and compatibility equations of mechanics. The next chapter, on virtual work, teaches how to use kinematical formulations for the determination of the required strain relationships for straight, curved, and thin walled beams. The chapters on complementary virtual work and energy methods are problem-solving chapters that incorporate Castigliano's first theorem, the Engesser-Crotti theorem, and the Galerkin method. In the final chapter, the reader is introduced to various geometric measures of strain and revisits straight, curved, and thin walled beams by examining them in a deformed geometry. Based on nearly two decades of work on the development of the world's most used FEM code, A Variational Approach to Structural Analysis has been designed as a self-contained, single-source reference for mechanical, aerospace, and civil engineering professionals. The book's straightforward style also provides accessible instruction for graduate students in aeronautical, civil, mechanical, and engineering mechanics courses.

Pest and Disease Management Handbook updates the 3rd edition of the Pest and Disease Control Handbook (1989). The structure of this important new book differs in several respects, acknowledging the advances that have been made in integrated crop management and the trends towards the more rational use of pesticides. Fully revised and up-to-date, the book commences with a new introductory chapter covering the principles of pest and disease management. Following chapters, each written by acknowledged experts in the field, cover a group of major temperate northern hemisphere crops. As well as comprehensive details of pest and disease management strategies, each chapter also includes a classification scheme for the cited pests and diseases. This important publication is a vital tool for all those involved in the crop protection / agrochemical industry including business managers, entomologists, agricultural scientists, plant pathologists and those studying and teaching BASIS courses. As an important reference guide for undergraduate and postgraduate students studying agricultural sciences, applied entomology and crop protection, copies of the book should be available on the shelves of all research establishments and universities where these subjects are studied and taught. Pest and Disease Management Handbook is published for the British Crop Protection Council (BCPC) by Blackwell Science. BCPC is a registered charity having the principal objective of promoting the development, use and understanding of effective and sustainable crop protection practice. Dr David V Alford, based in Cambridge, UK, is a member of the BCPC board, with many years' experience working as a government entomologist.

Oilseed rape, a major crop in many parts of the world, is attacked by a wide range of insect pests, many of which are of considerable economic importance. With the increasing demand to reduce agrochemical inputs on arable crops, the Commission of the European Communities supported a three-year programme in which scientific participants reviewed the natural enemies of oilseed rape insect pests. The various outputs from this important work form the basis of this comprehensive new book. Biocontrol of Oilseed Rape Pests commences with a review of the oilseed rape crop, followed by chapters on pests, pest management strategies and parasitoids of specific pests or groups of pests. Detailed information is also included on sampling, trapping and rearing pests, their parasitoids and predators; the identification of hymenopterous parasitoids; pathogens of oilseed rape pests, predators, predator taxonomy and identification, and the impact of on-farm landscape structures and systems on predators. This book is an essential purchase for all those involved with oilseed rape and for anyone with an interest in agricultural biocontrol strategies. It is also essential reading and an invaluable source of reference for agricultural scientists, entomologists, crop protection specialists, advisers and consultants. All agrochemical companies should have multiple copies of this book on their shelves, as should all libraries in universities and research establishments where biological and agricultural sciences are studied and taught. Dr David V. Alford, based in Cambridge, UK, has many years of experience working as a government entomologist.

Every sale is made or lost in 60 seconds—make them count Cold calling and pushing your way into an office or a living room creates an atmosphere of adversity and distrust you must overcome before you close the deal. With those tired tactics, you’re swimming upstream, against a strong current, with a bag of rocks tied to your waist. Sales has changed. Legacy sales gimmicks destroy relationships right from the first minute. The 60 Second Sale is a turnkey system for building profitable, lifelong relationships. Whether you work with affluent consumers or sell to senior executives in FORTUNE 500 companies, this step-by-step guide will help you open doors, close deals, and make more money in a way that leverages your natural strengths. That’s the magnificence of the 60 second sale system. You get to be yourself and build your business. In this book you will discover: How to start a sales conversation in 60 seconds Who to target for immediate income A powerful yet easy-to-use system to generate relationship revenue Five ways to initiate new relationships What to say to make sure your business meetings result in money in the bank The secret to getting a “yes” every time, even in the most competitive sales environment The winning mindset that removes the stress, uncertainty, and fear from income generation And so many other effective business growth strategies, your competition won’t know what hit them Business relationships are built one minute at a time. From introduction to closing, every 60 seconds you have an opportunity to strengthen your relationship or destroy it. Isn’t it time you started leveraging your expertise, demonstrating your value, and building trust with your clients? When you do, they buy into who you are and how you can help them – right from the first minute. The 60 Second Sale is a fail-proof system for succeeding in today’s relationship-focused sales environment.