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Author: Mariem Abdelmoula
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
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Book Description
Un des plus grands défis dans la conception matérielle et logicielle est de s'assurer que le système soit exempt d'erreurs. La moindre erreur dans les systèmes embarqués réactifs peut avoir des conséquences désastreuses et coûteuses pour certains projets critiques, nécessitant parfois de gros investissements pour les corriger, ou même conduire à un échec spectaculaire et inattendu du système. Prévenir de tels phénomènes en identifiant tous les comportements critiques du système est une tâche assez délicate. Les tests en industrie sont globalement non exhaustifs, tandis que la vérification formelle souffre souvent du problème d'explosion combinatoire. Nous présentons dans ce contexte une nouvelle approche de génération exhaustive de jeux de test qui combine les principes du test industriel et de la vérification formelle académique. Notre approche construit un modèle générique du système étudié à partir de l'approche synchrone. Le principe est de se limiter à l'analyse locale des sous-espaces significatifs du modèle. L'objectif de notre approche est d'identifier et extraire les conditions préalables à l'exécution de chaque chemin du sous-espace étudie. Il s'agit ensuite de générer tout les cas de tests possibles à partir de ces pré-conditions. Notre approche présente un algorithme de quasi-aplatissement plus simple et efficace que les techniques existantes ainsi qu'une compilation avantageuse favorisant une réduction considérable du problème de l'explosion de l'espace d'états. Elle présente également une manipulation symbolique des données numériques permettant un test plus expressif et concret du système étudié.
Author: Mariem Abdelmoula
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
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Book Description
Un des plus grands défis dans la conception matérielle et logicielle est de s'assurer que le système soit exempt d'erreurs. La moindre erreur dans les systèmes embarqués réactifs peut avoir des conséquences désastreuses et coûteuses pour certains projets critiques, nécessitant parfois de gros investissements pour les corriger, ou même conduire à un échec spectaculaire et inattendu du système. Prévenir de tels phénomènes en identifiant tous les comportements critiques du système est une tâche assez délicate. Les tests en industrie sont globalement non exhaustifs, tandis que la vérification formelle souffre souvent du problème d'explosion combinatoire. Nous présentons dans ce contexte une nouvelle approche de génération exhaustive de jeux de test qui combine les principes du test industriel et de la vérification formelle académique. Notre approche construit un modèle générique du système étudié à partir de l'approche synchrone. Le principe est de se limiter à l'analyse locale des sous-espaces significatifs du modèle. L'objectif de notre approche est d'identifier et extraire les conditions préalables à l'exécution de chaque chemin du sous-espace étudie. Il s'agit ensuite de générer tout les cas de tests possibles à partir de ces pré-conditions. Notre approche présente un algorithme de quasi-aplatissement plus simple et efficace que les techniques existantes ainsi qu'une compilation avantageuse favorisant une réduction considérable du problème de l'explosion de l'espace d'états. Elle présente également une manipulation symbolique des données numériques permettant un test plus expressif et concret du système étudié.
Author: Linda Strande
Publisher: IWA Publishing
ISBN: 1780404735
Category : Technology & Engineering
Languages : en
Pages : 428
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Book Description
It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Author: M. W. Mouton
Publisher: Springer
ISBN: 9401759669
Category : Science
Languages : en
Pages : 378
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Book Description
Author: CIKM 13 Conference Committee
Publisher:
ISBN: 9781450326964
Category : Computers
Languages : en
Pages : 938
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Book Description
CIKM'13: 22nd ACM International Conference on Information and Knowledge Management Oct 27, 2013-Nov 01, 2013 San Francisco, USA. You can view more information about this proceeding and all of ACM�s other published conference proceedings from the ACM Digital Library: http://www.acm.org/dl.
Author: Alan A. A. Donovan
Publisher: Addison-Wesley Professional
ISBN: 0134190564
Category : Computers
Languages : en
Pages : 1202
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Book Description
The Go Programming Language is the authoritative resource for any programmer who wants to learn Go. It shows how to write clear and idiomatic Go to solve real-world problems. The book does not assume prior knowledge of Go nor experience with any specific language, so you’ll find it accessible whether you’re most comfortable with JavaScript, Ruby, Python, Java, or C++. The first chapter is a tutorial on the basic concepts of Go, introduced through programs for file I/O and text processing, simple graphics, and web clients and servers. Early chapters cover the structural elements of Go programs: syntax, control flow, data types, and the organization of a program into packages, files, and functions. The examples illustrate many packages from the standard library and show how to create new ones of your own. Later chapters explain the package mechanism in more detail, and how to build, test, and maintain projects using the go tool. The chapters on methods and interfaces introduce Go’s unconventional approach to object-oriented programming, in which methods can be declared on any type and interfaces are implicitly satisfied. They explain the key principles of encapsulation, composition, and substitutability using realistic examples. Two chapters on concurrency present in-depth approaches to this increasingly important topic. The first, which covers the basic mechanisms of goroutines and channels, illustrates the style known as communicating sequential processes for which Go is renowned. The second covers more traditional aspects of concurrency with shared variables. These chapters provide a solid foundation for programmers encountering concurrency for the first time. The final two chapters explore lower-level features of Go. One covers the art of metaprogramming using reflection. The other shows how to use the unsafe package to step outside the type system for special situations, and how to use the cgo tool to create Go bindings for C libraries. The book features hundreds of interesting and practical examples of well-written Go code that cover the whole language, its most important packages, and a wide range of applications. Each chapter has exercises to test your understanding and explore extensions and alternatives. Source code is freely available for download from http://gopl.io/ and may be conveniently fetched, built, and installed using the go get command.
Author: George E. Cooper
Publisher:
ISBN:
Category : Air pilots
Languages : en
Pages : 60
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Book Description
Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 622
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Book Description
Author: Alexander V. Sergienko
Publisher: CRC Press
ISBN: 1420026607
Category : Science
Languages : en
Pages : 248
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Book Description
All current methods of secure communication such as public-key cryptography can eventually be broken by faster computing. At the interface of physics and computer science lies a powerful solution for secure communications: quantum cryptography. Because eavesdropping changes the physical nature of the information, users in a quantum exchange can easily detect eavesdroppers. This allows for totally secure random key distribution, a central requirement for use of the one-time pad. Since the one-time pad is theoretically proven to be undecipherable, quantum cryptography is the key to perfect secrecy. Quantum Communications and Cryptography is the first comprehensive review of the past, present, and potential developments in this dynamic field. Leading expert contributors from around the world discuss the scientific foundations, experimental and theoretical developments, and cutting-edge technical and engineering advances in quantum communications and cryptography. The book describes the engineering principles and practical implementations in a real-world metropolitan network as well as physical principles and experimental results of such technologies as entanglement swapping and quantum teleportation. It also offers the first detailed treatment of quantum information processing with continuous variables. Technologies include both free-space and fiber-based communications systems along with the necessary protocols and information processing approaches. Bridging the gap between physics and engineering, Quantum Communications and Cryptography supplies a springboard for further developments and breakthroughs in this rapidly growing area.
Author: United Engineers & Constructors, inc
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 218
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Book Description
Author: MS. John Hodgkinson
Publisher: Wiley-Blackwell
ISBN: 9780632038169
Category : Transportation
Languages : en
Pages : 246
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Book Description
This book provides a readable introduction to handling qualities, the combination of pilot acceptability and piloted performance with stability and control. It adopts the analytical and qualitative standpoints needed for handling qualities analysis and design of fixed-wing aircraft. Although there are several texts on stability and control, until now none has provided insight into the piloting concerns that have affected the success of recent fly-by-wire aircraft developments.
