Fur akustische Planungen ist es unerlasslich zu wissen, wie viel Schall eine Quelle abstrahlt. Auch die Wahl einer gerauscharmen Maschine ist nur moeglich, wenn die jeweiligen Herstellerangaben miteinander vergleichbar sind. Die Schallleistung ist in beiden Fallen die passende Groesse, da sie die Schallabstrahlung einer Quelle unabhangig vom umgebenden Raum beschreibt. Gerade diese Ortsunabhangigkeit ist aber erforderlich, um mehrere Quellen zuverlassig vergleichen zu koennen oder um z.B. die an einem Arbeitsplatz in einer Werkhalle oder an einem Immissionsort in der Nachbarschaft zu erwartenden Gerauschimmissionen prognostizieren zu koennen. In dem Band "Schallleistung" werden die theoretischen Grundlagen erlautert und verschiedene, grundlegende Messmethoden vorgestellt. Damit wird die Leserin oder der Leser in die Lage versetzt, das fur eine spezifische Messaufgabe passende Messverfahren auszuwahlen und, falls in den einschlagigen Regelwerken keine Vorgaben fur besondere Einzelfalle zu finden sind, angepasste Loesungen zu erarbeiten, die mit den jeweiligen Messprinzipien in Einklang stehen.

In diesem Band der Reihe Fachwissen Technische Akustik werden Grundlagen der Abtastung und Quantisierung, digitale Filter sowie mehrere digitale Signalverarbeitungsmethoden beschrieben: Echtzeit-Frequenzanalysator, 2-Kanal-FFT-Analysator mit Sweep- oder Rauschanregung und Maximalfolgenmesstechnik. Anwendungen und Fehlerquellen der digitalen Messverfahren werden an Beispielen diskutiert.

Success in scientific and engineering research depends on effective writing and presentation. The purpose of this guide is to help the reader achieve that goal. It enables students and researchers to write and present material to a professional modern standard, efficiently and painlessly, and with maximum impact. The approach is not prescriptive. Rather, the emphasis is on a logical approach to communication, informed by what needs to be achieved, what works in practice, and what interferes with success. Over 400 examples of good and bad writing and graphing are presented. Each is from a published research article and is accompanied by analysis, comment, and correction where needed. Journal reviewers' critiques of submitted manuscripts are included to illustrate common pitfalls. Above all, this is a "how-to" book, comprehensive but concise, suitable for continuous study or quick reference. Checklists at the end of each chapter enable the reader to test the readiness of a dissertation, journal submission, or conference presentation for assessment or review. Although oriented towards engineering and the physical and life sciences, it is also relevant to other areas, including behavioural and clinical sciences and medicine.

Real science is dead. Researchers are no longer trying to seek and speak the truth. Scientists no longer believe in the truth. They no longer believe that there is an eternal unchanging reality beyond our human organisation which they have a duty to discover and disseminate. Hence, the vast structures of personnel and resources that constitute modern science are not real science but merely a professional research bureaucracy. The consequences? Research literature must be assumed to be worthless or misleading and should almost always be ignored. In practice, this means that nearly all science needs to be demolished (or allowed to collapse) and real science rebuilt outside the professional research structure, from the ground up, by real scientists who regard truth-seeking as an imperative and truthfulness as an iron law.

This book brings together two broad themes that have generated a great deal of interest and excitement in the scientific and technical community in the last 100 years or so: quantum tunnelling and nonlinear dynamical systems. It applies these themes to nanostructured solid state heterostructures operating at room temperature to gain insight into novel photonic devices, systems and applications.

Written by three leading experts in the field, this textbook describes and explains all aspects of the scanning probe microscopy. Emphasis is placed on the experimental design and procedures required to optimize the performance of the various methods. Scanning Probe Microscopy covers not only the physical principles behind scanning probe microscopy but also questions of instrumental designs, basic features of the different imaging modes, and recurring artifacts. The intention is to provide a general textbook for all types of classes that address scanning probe microscopy. Third year undergraduates and beyond should be able to use it for self-study or as textbook to accompany a course on probe microscopy. Furthermore, it will be valuable as reference book in any scanning probe microscopy laboratory. Novel applications and the latest important results are also presented, and the book closes with a look at the future prospects of scanning probe microscopy, also discussing related techniques in nanoscience. Ideally suited as an introduction for graduate students, the book will also serve as a valuable reference for practising researchers developing and using scanning probe techniques.

For a physicist, "noise" is not just about sounds, but refers to any random physical process that blurs measurements, and in so doing stands in the way of scientific knowledge. This book deals with the most common types of noise, their properties, and some of their unexpected virtues. The text explains the most useful mathematical concepts related to noise. Finally, the book aims at making this subject more widely known and to stimulate the interest for its study in young physicists.

With this accessible, introductory guide, you will quickly learn how to use and apply optical spectroscopy and optical microscopy techniques. Focusing on day-to-day implementation and offering practical lab tips throughout, it provides step-by-step instructions on how to select the best technique for a particular application, how to set up and customize new optical systems, and how to analyze optical data. You will gain an intuitive understanding of the full range of standard optical techniques, from fluorescence and Raman spectroscopy to super resolution microscopy. Understand how to navigate around an optics lab with clear descriptions of the most common optical components and tools. Including explanations of basic optics and photonics, and easy-to-understand mathematics, this is an invaluable resource for graduate students, instructors, researchers and professionals who use or teach optical measurements in laboratories.

A single-source reference with a broad and holistic overview of nonclinical studies, this book offers critical training material and describes regulations of nonclinical testing through guidelines, models, case studies, practical examples, and worldwide perspectives. The book: * Provides a complete overview of nonclinical study organization, conduct, and reporting and describes the roles and responsibilities of a Study Director to manage an effective study * Covers regulatory and scientific concepts, including international testing and Good Laboratory Practice (GLP), compliance with guidelines, and animal models * Features a concluding chapter that compiles case studies / lessons learned from those that have served as a Study Director for many years * Addresses the entire spectrum of nonclinical testing, making it applicable to those in the government, laboratories and those actively involved in in all sectors of industry

This book provides a comprehensive guide to 3D Light-Field camera based imaging, exploring the working principles, developments and its applications in fluid mechanics and aerodynamics measurements. It begins by discussing the fundamentals of Light-Field imaging and theoretical resolution analysis, before touching upon the detailed optics design and micro-lens array assembly. Subsequently, Light-Field calibration methods that compensate for optical distortions and establish the relations between the image and real-word 3D coordinates are covered. This is followed by Light-Field 3D reconstruction algorithms which are elaborated for micrometer-scale particles and centimeter-scale physical models. Last but not least, implementations of the preceding procedures to selected fundamental and applied flow measurement scenarios are provided at the end of the book. Development and Application of Light-Field Cameras in Fluid Measurements gives an in-depth analysis of each topic discussed, making it ideal as both an introductory and reference guide for researchers and postgraduates interested in 3D flow measurements.

This handbook comprehensively covers the cutting-edge trends and techniques essential for the integration of nondestructive evaluation (NDE) into the changing face of the modern industrial landscape. In particular, it delves into the marriage of NDE with new techniques in e.g. data mining, cloud computing and autonomous operation, highlighting the potential for cyber-physical controlled production and discussing the myriad possible applications across many different industries. The Handbook of NDE 4.0 centers around the Internet of Things and Industry 4.0 - the next generation of industrial production encompassing all aspects of networking across all industrial areas. It discusses the adaptation of existing NDE techniques to emerging new technological areas, such as 3D printing, via the introduction of cyber systems into the inspection and maintenance processes. In addition, the handbook covers topics such as the management and processing of big data with respect to real-time monitoring of structural integrity and reliable inspection of individual components. Remote NDE to include competence not available on-site will be a potential technique to increase reliability of NDE inspections by integrating additional specialist inputs into the decision process by methods such as telepresence, thereby better leveraging the scarce resources of senior inspectors into industrial inspections at multiple sites. The handbook houses a wealth of essential information to help academics, industry professionals and entrepreneurs navigate through this burgeoning new field. The material in this handbook is presented with the intention of ultimately improving human safety through reliable inspections and dependable maintenance of critical infrastructure, while also enhancing business value through reduced downtime, affordable maintenance, and talent optimization.

A comprehensive textbook on mechanical measurement, this book covers the material in five modules. Module I deals with the basics of measurements without reference to any particular field and hence is to be dealt with at the beginning. Chapters 4, 6 and 13 deal with basic quantities that interest all engineers and should be included in any course on "a oeMechanical Measurementsa ." Parts of other chapters may be included to suit the requirements of a particular class. The book may also be useful to practicing engineers who want to refresh their knowledge of measurements. The material of the book is based on the notes prepared for a course taught by the author at IIT Madras for more than 20 years.