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Books > Science & Mathematics > Science: general issues > Scientific standards
Our planet is constantly monitored by hundreds of space-borne instruments. This book describes the technology of those instruments and the sciences that provide useful information from them. It also discusses the political implications of space-borne monitoring. From the moment satellites were launched into orbit their ability to see what was happening on a global scale was appreciated - and feared. This well researched book strives to answer such diverse questions as: Are satellites really a threat to individual privacy? How bad, really, is climate change and global warming? Why can't we find Osama bin Laden? Does the world have enough fresh water? The military side of the story is linked to the big security issues that we face, such as terrorism and civil wars. The civilian side of the story involves numerous successful collaborations in weather forecasting, navigation, communications, and other such "peaceful" uses of satellite surveillance. How the world handles the knowledge gained from these Earth watchers will be critical in the years to come, and Norris skillfully leads us through the issues and possible paths we can take.
The first edition of this book demystified the process of well log analysis for students, researchers and practitioners. In the two decades since, the industry has changed enormously: technical staffs are smaller, and hydrocarbons are harder to locate, quantify, and produce. New drilling techniques have engendered new measurement devices incorporated into the drilling string. Corporate restructuring and the "graying" of the workforce have caused a scarcity in technical competence involved in the search and exploitation of petroleum. The updated 2nd Edition reviews logging measurement technology developed in the last twenty years, and expands the petrophysical applications of the measurements.
This book is devoted to the polarization (spin) physics of high energy particles and contains three parts. The first part presents the theoretical prefaces of polarization in the particle physics for interpretations, predictions and bases for understanding the following two parts. The second part of the book presents the description of the essential polarization experiments including the recent ones. This part is devoted to the innovative instrumentations, gives the parameters of the polarized beams, targets, polarized gas jets and polarimeters. The third part of the book concentrates on the important achievements in polarization physics. The book can be used in lectures on nuclear and particle physics and and nuclear instruments and methods. As supplementary reading this book is useful for researchers working in particle and nuclear physics.
Small scale features and processes occurring at nanometer and femtosecond scales have a profound impact on what happens at a larger scale and over an extensive period of time. The primary objective of this volume is to reflect the state-of-the-art in multiscale mathematics, modeling, and simulations and to address the following barriers: What is the information that needs to be transferred from one model or scale to another and what physical principles must be satisfied during the transfer of information? What are the optimal ways to achieve such transfer of information? How can variability of physical parameters at multiple scales be quantified and how can it be accounted for to ensure design robustness? The multiscale approaches in space and time presented in this volume are grouped into two main categories: information-passing and concurrent. In the concurrent approaches various scales are simultaneously resolved, whereas in the information-passing methods the fine scale is modeled and its gross response is infused into the continuum scale. The issue of reliability of multiscale modeling and simulation tools which focus on a hierarchy of multiscale models and an a posteriori model of error estimation including uncertainty quantification, is discussed in several chapters. Component software that can be effectively combined to address a wide range of multiscale simulations is also described. Applications range from advanced materials to nanoelectromechanical systems (NEMS), biological systems, and nanoporous catalysts where physical phenomena operates across 12 orders of magnitude in time scales and 10 orders of magnitude in spatial scales. This volume is a valuable reference book for scientists, engineers and graduate students practicing in traditional engineering and science disciplines as well as in emerging fields of nanotechnology, biotechnology, microelectronics and energy.
The book highlights recent developments in the field of biomedical sensors with a focus on technology and design aspects of novel sensors and sensor systems. Diagnosis plays a central role in healthcare and requires a variety of novel biomedical sensors and sensor systems. This creates an enormous ongoing demand for sensors for both the everyday life as well as for medical care. Technologies concerning the analysis of human activities as well as for the early detection of diseases are moving into the focus of interest and form the basis for supporting human health and quality of life. As such, the book offers a key reference guide about novel medical sensors and systems for students, engineers, sensors designers and technicians.
Data integrity is the hottest topic in the pharmaceutical industry. Global regulatory agencies have issued guidance, after guidance after guidance in the past few years, most of which does not offer practical advice on how to implement policies, procedures and processes to ensure integrity. These guidances state what but not how. Additionally, key stages of analysis that impact data integrity are omitted entirely. The aim of this book is to provide practical and detailed help on how to implement data integrity and data governance for regulated analytical laboratories working in or for the pharmaceutical industry. It provides clarification of the regulatory issues and trends, and gives practical methods for meeting regulatory requirements and guidance. Using a data integrity model as a basis, the principles of data integrity and data governance are expanded into practical steps for regulated laboratories to implement. The author uses case study examples to illustrate his points and provides instructions for applying the principles of data integrity and data governance to individual laboratory needs. This book is a useful reference for analytical chemists and scientists, management and senior management working in regulated laboratories requiring either an understanding about data integrity or help in implementing practical solutions. Consultants will also benefit from the practical guidance provided.
For most of the history of scientific endeavour, science has been recorded on paper. In this digital era, however, there is increasing pressure to abandon paper in favour of digital tools. Despite the benefits, there are barriers to the adoption of such tools, not least their usability. As the relentless development of technology changes the way we work, we need to ensure that the design of technology not only overcomes these barriers, but facilitates us as scientists and supports better practice within science. This book examines the importance of record-keeping in science, current record-keeping practices, and the role of technology for enabling the effective capture, reuse, sharing, and preservation of scientific data. Covering the essential areas of electronic laboratory notebooks (ELNs) and digital tools for recording scientific data, including an overview of the current data management technology available and the benefits and pitfalls of using these technologies, this book is a useful tool for those interested in implementing digital data solutions within their research groups or departments. This book also provides insight into important factors to consider in the design of digital tools such as ELNs for those interested in producing their own tools. Finally, it looks at the role of current technology and then considers how that technology might develop in the future to better support scientists in their work, and in capturing and sharing the scientific record.
This volume provides a brief but important summary of the essential tests that need to be performed on all new compounds--whether they are new drugs, pesticides or food additives--before they can be registered for use in the United Kingdom. These basic tests for mutagenicity, originally drawn up by the United Kingdom Environmental Mutagen Society in 1983 have now been fully revised under the auspices of expert working groups from academia and industry and in collaboration with the UK Department of Health. This volume therefore provides the latest official guidelines and recommendations for all scientists involved in the testing and registration of new compounds not only in the UK, but in wider international context. The four main test procedures for measuring mutagenicity described in this volume are bacterial mutation assays, metaphase chromosome aberration assays in vitro, gene mutation assays in cultured mammalian cells, and in vivo cytogenetics assays. Each of these tests is fully explained and described in practical and procedural detail, with additional information on the presentation and data processing of results.
The new edition of this book incorporates the recent remarkable changes in electric power generation, transmission and distribution. The consequences of the latest development to High Voltage (HV) test and measuring techniques result in new chapters on Partial Discharge measurements, Measurements of Dielectric Properties, and some new thoughts on the Shannon Theorem and Impuls current measurements. This standard reference of the international high-voltage community combines high voltage engineering with HV testing techniques and HV measuring methods. Based on long-term experience gained by the authors the book reflects the state of the art as well as the future trends in testing and diagnostics of HV equipment. It ensures a reliable generation, transmission and distribution of electrical energy. The book is intended not only for experts but also for students in electrical engineering and high-voltage engineering.
The Fundamentals of Biomedical Science series has been written to reflect the challenges of practicing biomedical scientists today. It draws together essential basic science, with insights into laboratory practice, to show how an understanding of the biology of disease is linked to analytical approaches that lead to diagnosis. The series reviews the full range of disciplines to which a biomedical scientist may be exposed - from microbiology, to cytopathology, to transfusion science. The third edition of Biomedical Science Practice gives a comprehensive overview of key laboratory techniques and professional practial skills, with which students will need to be familiar to be successful in a professional biomedical enviroment.The text discusses a broad range of professional skills and concepts, such as health and safety considerations, personal development, and communication and confidentiality. The text also explores key experimental and analytical approaches which form the basis of the investigation and diagnosis of clinical conditions. Each chapter is supported with engaging clinical case studies, written to emphasize the link between theory and practice, and a set of end-of-chapter questions, which encourages students to test their knowledge and stretch their understanding. The third edition is available for students and institutions to purchase in a variety of formats and is supported by online resources. The e-book offers a mobile experience and convenient access along with functionality tools, navigation features and links that offer extra learning support: www.oxfordtextbooks.co.uk/ebooks Online student resources supporting the book include: Answers to case study and self-check questions Multiple choice questions An interactive Digital Microscope, encouraging the exploration of tissue samples Video podcasts including interviews with practicing biomedical scientists, and 'in the lab' footage showing biomedical science in practice Online lecturer resources supporting the book include: Figures from the book, available to download
An essential collection of articles, tables and notes, to define and explain the modern uses and relationships - as well as the global origins, evolution and culture - of the units composing what became known as the Imperial System, but has since in practice become the universal Anglo-American system of customary measures. For use in the home, in schools, in government and public bodies, by trade, industry, the media and in countries overseas. For quick reference, occasional consultation, continual study or simply reading for pleasure.
Dieses Buch vermittelt geballtes Wissen zur Halbleiter-SchaltungstechnikSeit nunmehr 50 Jahren ist dieses Buch uber die Schaltungstechnik auf dem Markt, doch in die Jahre gekommen ist es noch lange nicht. Auch die 16. Auflage wurde von den Verfassern intensiv uberarbeitet und erweitert und stellt dem Leser viele wichtige Themen der Halbleiter-Schaltungstechnik vor, darunter eine Einfuhrung in die Digitaltechnik, Anwendungsmoeglichkeiten in Bauelementen und Schaltungen der Nachrichtentechnik. Inhalte richten sich Praktiker und Studierende Von den Inhalten dieses Buchs uber die Schaltungstechnik profitieren sowohl Studenten als auch Ingenieure. Samtliche Kapitel wurden entsprechend der neuesten technischen Entwicklungen uberarbeitet. Es vermittelt Grundlagenwissen aber auch tiefergehende Informationen.
Characterization enables a microscopic understanding of the fundamental properties of materials (Science) to predict their macroscopic behaviour (Engineering). With this focus, Principles of Materials Characterization and Metrology presents a comprehensive discussion of the principles of materials characterization and metrology. Characterization techniques are introduced through elementary concepts of bonding, electronic structure of molecules and solids, and the arrangement of atoms in crystals. Then, the range of electrons, photons, ions, neutrons and scanning probes, used in characterization, including their generation and related beam-solid interactions that determine or limit their use, is presented. This is followed by ion-scattering methods, optics, optical diffraction, microscopy, and ellipsometry. Generalization of Fraunhofer diffraction to scattering by a three-dimensional arrangement of atoms in crystals leads to X-ray, electron, and neutron diffraction methods, both from surfaces and the bulk. Discussion of transmission and analytical electron microscopy, including recent developments, is followed by chapters on scanning electron microscopy and scanning probe microscopies. The book concludes with elaborate tables to provide a convenient and easily accessible way of summarizing the key points, features, and inter-relatedness of the different spectroscopy, diffraction, and imaging techniques presented throughout. Principles of Materials Characterization and Metrology uniquely combines a discussion of the physical principles and practical application of these characterization techniques to explain and illustrate the fundamental properties of a wide range of materials in a tool-based approach. Based on forty years of teaching and research, this book incorporates worked examples, to test the reader's knowledge with extensive questions and exercises.
In diesem Band der Reihe Fachwissen Technische Akustik wird das Verfahren der experimentellen Modalanalyse vorgestellt. Mit diesem Verfahren koennen die von der Ausbreitung von Luft- und Koerperschall bestimmten dynamischen Eigenschaften von Systemen untersucht werden. Beispiele fur solche Systeme sind Strukturen im Maschinen- und Fahrzeugbau oder auch kleinere Innenraume, deren akustischen Verhalten von Interesse ist. In einer Einfuhrung wird zunachst auf den Zusammenhang des physikalischen Modells und des systemtheoretischen Modells eingegangen sowie der Nutzen des modalen Modells fur die Beschreibung der Systemeigenschaften erlautert. Danach wird die dem modalen Modell zugrunde liegende Theorie sowie der Zusammenhang der modalen Parameter mit den im Systemmodell verwendeten Frequenzgangen dargestellt. Verschiedene Verfahren der experimentellen Modalanalyse werden diskutiert, darunter sowohl solche zur getrennten Bestimmung einzelner modaler Parameter als auch solche, bei denen eine Vielzahl modaler Parameter gleichzeitig aus den gemessenen Frequenzgangen ermittelt wird. Zusatzlich wird auf das praktische Vorgehen bei der Gewinnung der dazu notwendigen Messdaten und die Moeglichkeiten zur UEberprufung der Ergebnisse eingegangen. Zur Demonstration der verschiedenen Moeglichkeiten und Verfahren wird ein einfaches praktisches Beispiel ausfuhrlich behandelt. Das umfasst die Vorgehensweise bei der Messung ebenso wie die Anwendung unterschiedlich aufwandiger Verfahren zur Extraktion der modalen Parameter. Dazu werden zahlreiche Ergebnisse gezeigt, so dass Moeglichkeiten und Grenzen der experimentellen Modalanalyse deutlich werden.
The Second Edition of this best-selling academic guide to irrigation design has been completely rewritten so you can understand it easily. Created for the irrigation designer and installer, as well as students, Simplified Irrigation Design clearly explains irrigation design and related hydraulics, without the need for interpretation by teachers. Each chapter builds on the other, presenting all the fundamentals of irrigation design before getting into the more complicated aspects of irrigation, such as:
Luftschall uberstreicht nicht nur den Bereich menschlicher Sprachkommunikation, sondern belegt als Infraschall und Ultraschall Bereiche, die auch intensiv technisch oder medizinisch genutzt werden. Diese Nutzung setzt die Kenntnis seiner Eigenschaften voraus, die mit dem zeitlichen und raumlichenVerlauf der Druckanderungen im Schallfeld beschrieben werden koennen. Fur die Wandlung der Schallparameter in registrierbare Werte stehen verschiedene Moeglichkeiten zur Verfugung. Die Umsetzung in elektrische Spannungen mit Mikrofonen steht dabei weit an der Spitze. Je nach erforderlicher Genauigkeit werden hierbei Konstruktionen auf unterschiedlicher Basis verwendet. Dieser Band befasst sich mit den Eigenschaften und Moeglichkeiten der verschiedenen Loesungen, den damit verbundenen Grenzen der Schallgroessenerfassung sowie einem Ausblick auf zukunftige Entwicklungen.
In diesem Band der Reihe Fachwissen Technische Akustik werden passive und aktive hydroakustische Messsysteme und -verfahren vorgestellt, die fur Wasserschallmessungen im Meer verwendet werden. Auch wenn viele Verfahren aus dem Bereich des Luftschalls grundsatzlich auf Wasserschall ubertragbar sind, so ergeben sich aufgrund der akustischen Eigenschaften des Meeres und der begrenzenden Flachen (Meeresboden und -oberflache) sowie der spezifischen Eigenschaften der hydroakustischen Messtechnik doch signifikante Unterschiede. Nach einer Einfuhrung in die fur Wasserschallmessungen gebrauchlichen Mess- und (spektralen) Pegelgroessen und die Grundlagen der hydroakustischen Sensorik wird ein UEberblick uber die meeresakustischen Randbedingungen gegeben. Fur jede Wasserschallmessung ist die Kenntnis der Schallausbreitungsbedingungen und der Umgebungsgerausche im Meer von zentraler Bedeutung. Anhand von zwei typischen Messaufgaben, der Bestimmung des Quell- oder Zielpegels eines Schiffes und der von Rammschall bei der Errichtung von Offshore-Windenergieanlagen, werden dann unterschiedliche stationare und driftende Sensorsysteme im Detail vorgestellt. Anschliessend wird auf die Vor- und Nachteile von geschleppten Sensorsystemen, wie der horizontalen Richtungsbildung und dem stroemungsinduzierten Eigenstoergerausch, naher eingegangen. Im letzten Abschnitt dieses Kapitels werden aktive Verfahren und Systeme behandelt, die bei Untersuchungen des Meeresbodens, der Schallausbreitung im Meer und der Ruckstreu- und Absorptionseigenschaften getauchter Objekte sowie bei der Kalibrierung von hydroakustischen Antennen Verwendung finden.
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.
This hands-on guide is primarily intended to be used in
undergraduate laboratories in the physical sciences and
engineering. It assumes no prior knowledge of statistics. It
introduces the necessary concepts where needed, with key points
illustrated with worked examples and graphic illustrations. In
contrast to traditional mathematical treatments it uses a
combination of spreadsheet and calculus-based approaches, suitable
as a quick and easy on-the-spot reference. The emphasis throughout
is on practical strategies to be adopted in the laboratory.
Build Your Coaching Skills to Develop Others Coaching has the power to enhance individual, team, and organizational performance. Its interactive process helps individuals set and act upon goals, make better decisions, and produce results. 10 Steps to Successful Coaching offers meaningful advice to help you embrace and elevate your existing coaching skills, drawing upon your strengths as a leader, colleague, or employee to bring out the strengths of others. This book is an entry point for anyone who wants—or has been asked—to do some formal or informal coaching. It’s also for anyone who wants to infuse day-to-day interactions in the workplace with a powerful new skill: development through coaching. With coaching skills quickly becoming essential for anyone who wants to help others develop in the workplace, use this book as your road map to being an effective coach who is ready to listen, encourage, and challenge others to greater achievement. Your coachees will enjoy greater job satisfaction and confidence, and your organization will benefit from this cost-effective way of developing employees and improving productivity. You, as a coach, will discover growth in your working relationships and gain a tremendous sense of accomplishment. This second edition addresses coaching in terms of the broader organization; creating a coaching culture; the impact of technology on the coaching relationship; and goal and accountability setting; overcoming obstacles to good listening; and ending the coaching process. You'll find a diverse array of tools to help you along the way. Examples include: a development plan to highlight existing coaching skills and areas of opportunity sample questions to ask during sessions forms to secure commitment to coaching an assessment to evaluate your organization’s coaching culture.
Reiner Thiele zeigt ausgehend von der prinzipiellen Schaltungsanordnung eines Sensors zur potenzialgetrennten Messung elektrischer Stroeme mit dem Faraday-Effekt in Lichtwellenleitern dessen vollstandigen Entwurf anhand hergeleiteter Parametergleichungen einschliesslich praxisrelevanter Dimensionierungsbeispiele. Ausserdem beweist der Autor, dass der fur den Sensor funktionsbestimmende lineare Zusammenhang zwischen Messgroesse und Messwert der Loesung einer speziellen Riccati-Differenzialgleichung entspricht.
Reiner Thiele hat durch die Applikation des Faraday-Effektes zur Polarisations-Ebenen-Drehung linear polarisierten Lichts in Lichtwellenleitern, induziert durch das den stromfuhrenden elektrischen Leiter umgebende Magnetfeld, eine Loesung gefunden, hohe elektrische Stroeme ohne Eingriff in den Messgroessenkreis zu messen. Dies stellte bisher ein grundsatzliches Problem der elektrischen Energietechnik dar. Eine in Reflexion arbeitende erfindungsgemasse Schaltungsanordnung aus optischen und elektronischen Komponenten stellt dabei den gewunschten linearen Zusammenhang zwischen Messgroesse und Messwert bei Elimination der stoerenden Doppelbrechung der Lichtwellenleiter her, die sich ansonsten vermindernd auf die Effizienz des Faraday-Effektes auswirkt.
Die Computer zur Steuerung analytischer Systeme sollen einer Validierung unterzogen werden, unabhangig davon, ob es sich z.B. um Laboratorien in den Bereichen Umwelt, Lebensmittel, klinische Chemie, Pharmakologie oder Toxikologie, chemische oder pharmazeutische Qualitatssicherungslaboratorien oder LIMS-Installationen handelt. Der Autor fuhrt mit diesem unverzichtbaren Ratgeber den Praktiker durch den gesamten komplexen Validierungsprozess fur computergesteuerte Analysensysteme. Er liefert den roten Faden, die logischen Grunduberlegungen und die Methodologie, um Validierung effizient durchzufuhren. Das Buch ist eine Pflichtlekture fur Labormanager, Analytiker, Validierungs- und Auditingteams, Qualitatssicherungsbeauftragte und Informationsmanager."
Die Forschung und Anwendungsentwicklung in dem Bereich chemischer und biochemischer Sensoren ist weiterhin in einem schnellen Wachstum begriffen. Die Erfahrungen des letzten Jahrzehnts haben jedoch gezeigt, dass die erfolgreiche Entwicklung solcher Sensoren, die auch den harten Routinebedingungen in den vielfaltigen Anwendungsgebieten widerstehen, nur dann moglich ist, wenn Chemiker und Ingenieure kooperieren. Daher ist es das Ziel dieses Lehrbuches, sowohl Chemikern als auch Ingenieuren, Lebensmittel- und Biotechnologenin einer streng systematischen aber sehr praxisorientierten Darstellung die Technologie und die Anwendung chemischer Sensoren nahezubringen. Der interdisziplinare Ansatz uberbruckt die unterschiedlichen Denkweisen in Chemie, Physik und Ingenieurwissenschaften erfolgreich." |
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