Stefan Keil – författare

This unique book provides a fully revised and up-to-date treatment of the TTCN-3 languageTTCN-3 is an internationally standardised test language with a powerful textual syntax which has established itself as a global, universal testing language. Application of TTCN-3 has been widened beyond telecommunication systems to areas such as the automotive industry, internet protocols, railway signalling, medical systems, and avionics.An Introduction to TTCN-3 gives a solid introduction to the TTCN-3 language and its uses, guiding readers though the TTCN-3 standards, methodologies and tools with examples and advice based on the authors' extensive real-world experience. All the important concepts and constructs of the language are explained in a step-by-step, tutorial style, and the authors relate the testing language to the overall test system implementation, giving the bigger picture.This second edition of the book has been updated and revised to cover the additions, changes and extensions to the TTCN-3 language since the first version was published. In addition, this book provides new material on the use of XML, test framework design and LTE testing with TTCN-3.Key Features: Provides a fully revised and up-to-date look at the TTCN-3 languageAddresses language standardization, tool implementation and applying TTCN-3 in real world scenarios such as VoIP and LTE testingExplores recent advances such as TTCN-3 core language extensions on type parameterization, behavior types, real time and performance testingIntroduces the use of ASN.1 and XML with TTCN-3Written by experts in the fieldIncludes an accompanying website containing code samples and links to the relevant standards documents (www.wiley.com/go/willcock_ttcn-3_2e)This book is an ideal reference for test engineers, software developers, and standards professionals. Graduate students studying telecommunications and software engineering will also find this book insightful.

This book is a profound compendium on strain gages and their application in materials science and all fields of engineering. It covers both the theoretical and practical aspects of strength and stress analysis using the technique of strain gages. A brief historical review about strain gage inventions is looking at the "who, when and how". The comprehensive bibliography leads to additional background information.Particular consideration is given to the stress analysis in order to verify the mechanical properties and capacity of components with focus on stability and serviceability, optimization, and safety checks, as well as in order to foresee inspection and monitoring. The practice-oriented descriptions of the principles of the measurement, installation and experimental set-ups derives from the author`s own experiences in the field. Particular emphasis is laid on the correct planning and assessment of measurements, and on the interpretation of the results. Step-by-step guidance is given for many application examples, and comments help to avoid typical mistakes.The book is an indispensable reference work for experts who need to analyze structures and have to plan measurements which lead to reliable results. The book is instructive for practitioners who must install reliable measurement circuits and judge the results. The book is also recommended for beginners to get familiar with the problems and to learn about the possibilities and the limits of the strain gage technique.

Das vorliegende Fachbuch ist ein Kompendium der DMS-Entwicklung, deren letzte Jahrzehnte der Autor selbst mitgestaltet hat. Es stellt für den Praktiker vor Ort, der Installationen für zuverlässige Messungen und die Messungen selbst ausführen will, eine kompakte Arbeitsanweisung dar. Für den Experten, der Probleme analysieren, Lösungen konzipieren und Messergebnisse auswerten muss, ist das Buch mit seinem ausführlichen Sachverzeichnis ein unverzichtbares Nachschlagewerk. Für den Lernenden, den Neueinsteiger in das Fachgebiet, der sich mit Möglichkeiten und Grenzen der DMS-Technik vertraut machen will, wird das Buch ein hilfreicher Ratgeber sein. Der Inhalt beschränkt sich nicht nur auf Technologie und Anwendung der DMS, sondern behandelt in ausführlicher Form die für die Auswertung gemessener Dehnungen erforderlichen Algorithmen zur Ermittlung von Spannungen.