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Ruby is perhaps best known as the engine powering the hugely popular Ruby on Rails web framework. However, it is an extremely powerful and versatile programming language in its own right. It focuses on simplicity and offers a fully object-oriented environment. Beginning Ruby is a thoroughly contemporary guide for every type of reader who wants to learn Ruby, from novice programmers to web developers to Ruby newcomers. It starts by explaining the principles behind object-oriented programming and within a few chapters builds toward creating a genuine Ruby application. The book then explains key Ruby principles, such as classes and objects, projects, modules, and libraries, and other aspects of Ruby such as database access. In addition, Ruby on Rails is covered in depth, and the books appendixes provide essential reference information as well as a primer for experienced programmers.
Ruby (Computer program language) --- Object-oriented programming (Computer science) --- Computer programming --- Object-oriented methods (Computer science) --- Document Object Model (Web site development technology) --- Object-oriented programming languages --- Software engineering. --- Software Engineering/Programming and Operating Systems. --- Computer software engineering --- Engineering
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The chicken bone which you nibbled and threw away yesterday was a high-tech product! In fact it was a superlative light-weight design functionally adapted to the mechanical requirements. No engineer in the world has as yet been able to copy this structural member, which is excellently optimized in its external shape and its internal architecture as regards minimum weight and maximum strength. The tree trunk on which you recently carved your initials has also over the course of its life, steadily improved its internal and external structure and adapted itself optimally to new loads. In the course of its biomechanical self-optimization, it will heal the notch you cut as speedily as possible, in order to repair even the smallest weak point, which might otherwise cost it its life in the next storm. This book is dedicated to the understanding of this biomechanical optimization of shape. And not only that: With the knowledge of these perfect processes of self-optimization in nature, techniques for the improvement of mechanical structural members could be developed. Industry already uses them. Nature shows us the way to eco-design, to machines in accordance with nature's laws governing structures and shapes. CLAUS MATTHECK: Born in Dresden, Germany in 1947. Study of physics in Dresden, PhD in theoretical physics in 1973. Habilitation in the field of damage control in 1985. Lectures on biomechanics at the University of Karlsruhe. Head of the Department of Biomechanics of the Research Centre in Karlsruhe, where the results described in this book were obtained. Several awards in science and literature.
Architecture. --- Engineering. --- Engineering design. --- Software engineering. --- Trees. --- Biomechanics --- Trees --- Biology --- Health & Biological Sciences --- Biophysics --- Mechanical properties --- Biomechanics. --- Mechanical properties. --- 681.3*J3 --- 57.018.2 --- 57.018.2 Form. Shape --- Form. Shape --- 681.3*J3 Life and medical sciences (Computer applications) --- Life and medical sciences (Computer applications) --- Biomécanique --- Arbres --- Propriétés mécaniques --- Dendrology --- Nursery stock --- Woody plants --- Arboriculture --- Forests and forestry --- Timber --- Biological mechanics --- Mechanical properties of biological structures --- Mechanics --- Contractility (Biology) --- Biophysics. --- Biological physics. --- Engineering Design. --- Tree Biology. --- Biological and Medical Physics, Biophysics. --- Engineering, general. --- Software Engineering/Programming and Operating Systems. --- Architecture, general. --- Design, Engineering --- Engineering --- Industrial design --- Strains and stresses --- Architecture, Western (Western countries) --- Building design --- Buildings --- Construction --- Western architecture (Western countries) --- Art --- Building --- Computer software engineering --- Industrial arts --- Technology --- Biological physics --- Medical sciences --- Physics --- Design --- Design and construction
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Unix --- Computer architecture. Operating systems --- UNIX (Computer operating system) --- UNIX (Système d'exploitation des ordinateurs) --- UNIX (Computer file) --- informatica --- informatique --- UNIX (Système d'exploitation des ordinateurs) --- Besturingssystemen: Unix --- 681.3.066 --- Besturingssystemen --- 681.3*D40 --- 681.3*D40 Operating systems: general --- Operating systems: general --- UNIX device drivers (Computer programs) --- Operating System --- Software engineering --- C (langage de programmation)
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