Cable-driven parallel robots are a new kind of lightweight manipulators with excellent scalability in terms of size, payload, and dynamics capacities. For the first time, a comprehensive compendium is presented of the field of cable-driven parallel robots. A thorough theory of cable robots is setup leading the reader from first principles to the latest results in research. The main topics covered in the book are classification, terminology, and fields of application for cable-driven parallel robots. The geometric foundation of the standard cable model is introduced followed by statics, force distribution, and stiffness. Inverse and forward kinematics are addressed by elaborating efficient algorithms. Furthermore, the workspace is introduced and different algorithms are detailed. The book contains the dynamic equations as well as simulation models with applicable parameters. Advanced cable models are described taking into account pulleys, elastic cables, and sagging cables. For practitioner, a descriptive design method is stated including methodology, parameter synthesis, construction design, component selection, and calibration. Rich examples are presented by means of simulation results from sample robots as well as experimental validation on reference demonstrators. The book contains a representative overview of reference demonstrator system. Tables with physical parameters for geometry, cable properties, and robot parameterizations support case studies and are valuable references for building custom cable robots. For scientist, the book provides the starting point to address new scientific challenges as open problems are named and a commented review of the literature on cable robot with more than 500 references are given.
Reviewing the fundamental instrumental techniques and current observational results, this book unveils the mysteries of the physical processes in the central parsec of our Milky Way: the super-massive black hole embedded in a central stellar cluster as well as the gas and dust in the circumnuclear region.The observations described cover the entire electromagnetic spectrum from decimeter radio-waves to high energy X-ray and γ-rays, and a comprehensive summary of up-to-date astrophysical interpretations is given.The emphasis is put on observational techniques, image processing aspects, and a detailed presentation of the most cutting-edge work carried out in the near-infrared wavelength regime. These recent results include both the first orbits of stars around the central black hole and the multiwavelength variability of the central source./a
Our contemporary societies place more and more emphasis on the singular and the unique. The industrial societies of the early 20th century produced standardized products, cities, subjects and organizations which tended to look the same, but in our late-modern societies, we value the exceptional - unique objects, experiences, places, individuals, events and communities which are beyond the ordinary and which claim a certain authenticity. Industrial society’s logic of the general has been replaced by late modernity’s logic of the particular. In this major new book, Andreas Reckwitz examines the causes, structures and consequences of the society of singularities in which we now live. The transformation from industrial to cultural capitalism, the rise of digital technologies and their ‘culture machine’ and the emergence of an educated, urban new middle class form a powerful engine for the singularization of the social. In late modernity, what is singular is valorized and stirs the emotions, while what is general has to remain in the background, and this has profound social consequences. The society of singularities systematically produces devaluation and inequality: winner-takes-all markets, job polarization, the neglect of rural regions and the alienation of the traditional middle class. The emergence of populism and the rise of aggressive forms of nationalism which emphasize the cultural authenticity of one’s own people thus turn out to be the other side of singularization. This prize-winning book offers a new perspective on how modern societies have changed in recent decades and it will be of great value to anyone interested in the forces that are shaping our world today.
Preparing for medical finals can be one of the most stressful periods of your career. The successful candidate does more than demonstrate knowledge; they show the examiner an understanding of the underlying concepts, giving insight into a clear, sensible mind. This book shows you a method for structuring knowledge you already have while revising essential concepts in medicine. Organising the way you think will make it easier to access relevant information, make important connections and present your answers coherently. "Thinking Medicine" provides strategies for success in any examination as well as a system to approach problems in clinical practice. www.thinkingmedicine.com,
This book reconsiders the linguistic notion of emphasis. For many, the concept of emphasis is confined to information structure. However, our understanding of the grammatical reflexes of emphasis is only partial as long as the expressive side of utterances is not taken into account. The book explores similarities, differences, and interactions between information structure and the expressive dimension of language in the domain of natural language grammar. Specifically, this monograph demonstrates that specific word order options, sometimes in combination with discourse particles, yield meaning effects that are typical for the expressive side of utterances and endow them with an exclamative flavor. Approaching this issue from a syntactic point of view, the book shows that there are syntactic categories (e.g., a certain class of particle verbs) and word orders (e.g., certain fronting patterns involving discourse particles) that directly connect to expressive meaning components. The work presented in this monograph combines theoretical analysis with experimental evidence from both perception and production studies.
The book analyses the conceptual and discursive traditions that underlay the Nazi use of body, illness and parasite metaphors in their genocidal anti-Semitic ideology. Part I gives a detailed analysis of this metaphor field in Hitler’s Mein Kampf and his public statements from the 1920s to 1945, when it served him and the Nazi propaganda machine to announce, justify and defend his main policy decisions to destroy European Jewry. The book also studies the evidence from secret surveillance reports and diaries that demonstrates the impact of the body-parasite metaphor complex on popular opinion in Germany 1933-1945 and in the post-war period. Part II of the book traces the history of this metaphor field back to the Middle Ages and the Renaissance when the concept of the (nation) state as a body emerged as a framework for political theory. After its translation into the European vernacular languages, the concept followed different discursive careers related to the divergent political cultures. The reconstruction of its German discourse history, reaching from Luther to the 20th century (and still continuing) shows that whilst there was no linear development towards the racist-genocidal applications of the metaphors in Nazi ideology, parts of the concept’s discourse history served as the basis for Holocaust ideology and propaganda and that its use deserves continued critical attention.
Andreas Bihlmaier describes a novel method to model dynamic spatial relations by machine learning techniques. The method is applied to the task of representing the tacit knowledge of a trained camera assistant in minimally-invasive surgery. The model is then used for intraoperative control of a robot that autonomously positions the endoscope. Furthermore, a modular robotics platform is described, which forms the basis for this knowledge-based assistance system. Promising results from a complex phantom study are presented.
Software engineering for complex systems requires abstraction, multi-domain expertise, separation of concerns, and reuse. Domain experts rarely are software engineers and should formulate solutions using their domain's vocabulary instead of general purpose programming languages (GPLs). Successful integration of domain-specific languages (DSLs) into a software system requires a separation of concerns between domain issues and integration issues while retaining a loose enough coupling to support DSL reuse in different contexts. Component-based software engineering (CBSE) increases reuse and separation of concerns by encapsulating functionalities in components. Components are GPL artifacts, which raises accidental complexities. Model-driven engineering (MDE) abstracts from GPLs by lifting models to primary development artifacts. Models can be abstract and better comprehensible by using domain vocabulary instead of a GPL. They can be platform-independent and translated into GPLs for different target platforms. Component & connector (C&C) architecture description languages (ADLs) combine CBSE and MDE to compose of architectures from component models. We present concepts for engineering software systems with exchangeable component behavior languages. The concepts are realized in a software architecture modeling infrastructure that comprises modeling languages to develop applications based on C&C software architectures with exchangeable component behavior DSLs. It supports transformations from platform-independent to platform-specific software architectures and compositional code generation. With this, it enables domain experts to (re-)use the most appropriate component behavior DSL and facilitates composition of domain solutions through encapsulation in components.
This book successfully connects archaeology and archaeometallurgy with geoscience and metallurgy. It addresses topics concerning ore deposits, archaeological field evidence of early metal production, and basic chemical-physical principles, as well as experimental ethnographic works on a low handicraft base and artisanal metal production to help readers better understand what happened in antiquity. The book is chiefly intended for scholars and students engaged in interdisciplinary work.
The Fovea: Structure, Function, Development, and Disease summarizes the current biological knowledge regarding the two types of the vertebrate fovea (and its main structural elements, the Müller cells). This information is then used to explain different aspects of human vision, foveal development, and macular disorders. Sections give an overview of the retinal structure and the different types of retinal glia, survey the structure and function of the primate and non-mammalian fovea types, discuss foveal development—with a focus on the human fovea, cover the roles of Müller cells and astrocytes in the pathogenesis and regeneration of various human macular disorders are described. Using a translational approach, this reference is a valuable text for scientists, clinicians and physicians interested in the fovea. Readers will gain a new understanding of the cellular basics of the fovea, which is the most important part of the eye. - Adopts a translational approach, summarizing the biological knowledge regarding the structure and function of the fovea, the roles of Müller cells in mediating the structural integrity, and function of the fovea - Provides overviews of both basic types of the vertebrate fovea, countering the popular belief that there is only one type of the vertebrate fovea, the human fovea - Thoroughly shows the mechanisms involved in the development of the fovea that explain the rapid improvement of visual acuity in newborns - Explains pathological changes in the foveal structure and function with evaluation pointing toward possible prevention and/or cure
Biomedical engineering involves the application of the principles and techniques of engineering to the enhancement of medical science as applied to humans or animals. It involves an interdisciplinary approach which combines the materials, mechanics, design, modelling and problem-solving skills employed in engineering with medical and biological sciences so as to improve the health, lifestyle and quality-of-life of individuals. Biomedical engineering is a relatively new field, and involves a whole spectrum of disciplines covering: bioinformatics, medical imaging, image processing, physiological signal processing, biomechanics, biomaterials and bioengineering, systems analysis, 3-D modelling, etc. Combining these disciplines, systematically and synergistically yields total benefits which are much greater than the sum of the individual components. Prime examples of the successful application of biomedical engineering include the development and manufacture of biocompatible prostheses, medical devices, diagnostic devices and imaging equipment and pharmaceutical drugs. The purpose of this book is to present the latest research and development carried out in the areas of biomedical engineering, biomaterials and nanomaterials science and to highlight the applications of such systems. Particular emphasis is given to the convergence of nano-scale effects, as related to the delivery of enhanced biofunctionality.
English summary: Founded by Emil Meynen, edited by Andreas Bittmann in Cooperation with: the German Society for Geography, Austrian IGU-National Committee, and the Swiss Association for Geography/ Association Suisse de G�ographie. For over sixty years and in the 31st edition from Franz Steiner Publishers, the Geographic Pocketbook proves itself as a reference work: the clear list of geographic institutions, administrative authorities, organization and geographers in Germany, Austria and Switzerland makes the handbook indispensible for everything concerning geography. It has been updated and furnished with useful register and serves as a compact and reliable source. German description: Begruendet von Emil Meynen, herausgegeben von Andreas Dittmann im Einvernehmen mit: Deutsche Gesellschaft fuer Geographie, �sterreichisches IGU-Nationalkomitee, Verband Geographie Schweiz / Association Suisse de G�ographie Seit ueber 60 Jahren und in der 31. Ausgabe im Franz Steiner Verlag bew�hrt sich das Geographische Taschenbuch als Nachschlagewerk: die uebersichtliche Auflistung geographischer Institutionen, Beh�rden, Organisationen und Geographen und Geographinnen in Deutschland, �sterreich und der Schweiz machen das Handbuch unentbehrlich fuer alle, die sich mit der Geographie befassen. Wieder aktualisiert und mit nuetzlichen Registern versehen, ist es eine kompakte und zuverl�ssige Quelle.
Cable-driven parallel robots are a new kind of lightweight manipulators with excellent scalability in terms of size, payload, and dynamics capacities. For the first time, a comprehensive compendium is presented of the field of cable-driven parallel robots. A thorough theory of cable robots is setup leading the reader from first principles to the latest results in research. The main topics covered in the book are classification, terminology, and fields of application for cable-driven parallel robots. The geometric foundation of the standard cable model is introduced followed by statics, force distribution, and stiffness. Inverse and forward kinematics are addressed by elaborating efficient algorithms. Furthermore, the workspace is introduced and different algorithms are detailed. The book contains the dynamic equations as well as simulation models with applicable parameters. Advanced cable models are described taking into account pulleys, elastic cables, and sagging cables. For practitioner, a descriptive design method is stated including methodology, parameter synthesis, construction design, component selection, and calibration. Rich examples are presented by means of simulation results from sample robots as well as experimental validation on reference demonstrators. The book contains a representative overview of reference demonstrator system. Tables with physical parameters for geometry, cable properties, and robot parameterizations support case studies and are valuable references for building custom cable robots. For scientist, the book provides the starting point to address new scientific challenges as open problems are named and a commented review of the literature on cable robot with more than 500 references are given.
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