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Four major developments in dune research have occurred in recent years. Following the discovery of dunes on Saturn’s moon, Titan, a whole new dimension has been added to aeolian studies. The vast amounts of data now coming in from Mars bring a new perspective to the abundant dunes on that planet. In the last decade, radar methods and high-resolution imaging have revolutionized the global observation of Earth’s dunes. New instrumentation has improved field study capabilities, and powerful computational tools have opened new methods of simulating dune formation and evolution.   Lavishly illustrated with over 300 photographs and figures, many in color, Dune Worlds covers all these developments to provide a unique and comprehensive overview of dunes, how we study them, and how they relate to their planetary environments. Lavishly illustrated with over 300 photographs and figures, many in color, Dune Worlds covers all these developments to provide a unique and comprehensive overview of dunes, how we study them, and how they relate to their planetary environments.  .

Science --- Space research --- Cosmology --- Physics --- Mining industry --- radars --- astrofysica --- popularisering wetenschap --- mijnbouw --- fysica --- ruimte (astronomie) --- astronomie --- kosmologie

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This book presents the theory, analysis, and design of ultra-wideband (UWB) radar and sensor systems (in short, UWB systems) and their components. UWB systems find numerous applications in the military, security, civilian, commercial and medicine fields. This book addresses five main topics of UWB systems: System Analysis, Transmitter Design, Receiver Design, Antenna Design and System Integration and Test. The developments of a practical UWB system and its components using microwave integrated circuits, as well as various measurements, are included in detail to demonstrate the theory, analysis and design technique. Essentially, this book will enable the reader to design their own UWB systems and components. In the System Analysis chapter, the UWB principle of operation as well as the power budget analysis and range resolution analysis are presented. In the UWB Transmitter Design chapter, the design, fabrication and measurement of impulse and monocycle pulse generators are covered. The UWB Receiver Design chapter addresses the design and measurement of the strobe pulse generator, sampling mixer, low-noise amplifier and synchronous sampling receiver. Next, the UWB Antenna Design chapter details the design and measurement of to two UWB antennas: the microstrip quasi-horn antenna and the UWB uniplanar antenna. The System Integration and Test chapter covers the transmission-reception test, signal processing, system integration, and evaluation of the UWB sensor. The final chapter provides a summary and conclusion of the work.

Fluid mechanics --- Physics --- Spectrometric and optical chemical analysis --- Electronics --- Applied physical engineering --- radars --- toegepaste wetenschappen --- telecommunicatie --- elektronica --- ingenieurswetenschappen --- fysica --- versterkers --- spectrometrie

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Interferometric synthetic aperture radar (InSAR) is a relatively new remote sensing tool that is capable of measuring ground-surface deformation with centimeter-to-subcentimeter precision at a spatial resolution of tens of meters over an area of hundreds to thousands of square kilometers. With its global coverage and all-weather imaging capability, InSAR has become an increasingly important technique for studying volcanoes in remote regions such as the Aleutian Islands. The spatial distribution of surface deformation data derived from InSAR images enables the construction of detailed mechanical models to enhance the study of magmatic processes. InSAR Imaging of Aleutian Volcanoes: • Provides a theoretical framework for InSAR observations and capabilities • Discusses state-of-the-art InSAR analysis techniques • Describes the structure, eruptive history, and magma composition of volcanoes along the entire Aleutian arc • Presents conceptual models for the magma plumbing systems of Aleutian volcanoes based on InSAR results combined with geophysical, geological and geochemical observations. • Synthesizes observations of deformation along the Aleutian arc and compares those results to other active arcs around the world. • Is illustrated throughout with high-resolution color satellite radar images.

Space research --- Geodesy. Cartography --- Geophysics --- Geochemistry --- Geology. Earth sciences --- Physical geography --- Geography --- geochemie --- radars --- fotogrammetrie --- remote sensing --- geografie --- geologie --- fysische geografie --- geofysica --- sensoren

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The rationale for publishing a second edition of this monograph is that this area of research continues to show remarkable advancement. The new generation of synthetic aperture radar satellites provided unprecedented spatial resolution of the sea surface features. In addition, satellites to measure sea surface salinity have been launched. Computational fluid dynamic models open new opportunities in understanding the processes in the near-surface layer of the ocean and their visibility from space. Passive acoustic methods for monitoring short surface waves have significantly progressed. Estimation of the errors in satellite measurements of long-term global sea surface temperature trends due to processes in the near-surface layer of the ocean has become important for climate research. Due to growing applications of the results, it is anticipated that more students are going to be trained in this area of research. Therefore this second edition of the monograph is closer to a textbook format.

Mathematics --- Fluid mechanics --- Hydrosphere --- Meteorology. Climatology --- Geology. Earth sciences --- Environmental protection. Environmental technology --- Geography --- akoestiek --- radars --- vloeistofstroming --- aerodynamica --- milieukunde --- wiskunde --- geografie --- oceanografie --- atmosfeer

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This book investigates the design of devices, systems, and circuits for medical applications using the two recently established frequency bands: ultra-wideband (3.1-10.6 GHz) and 60 GHz ISM band. These two bands provide the largest bandwidths available for communication technologies and present many attractive opportunities for medical applications. The applications of these bands in healthcare are wireless body area network (WBAN), medical imaging, biomedical sensing, wearable and implantable devices, fast medical device connectivity, video data transmission, and vital signs monitoring. The recent technological advances and developments proposed or used in medicine based on these two bands are covered. The book introduces possible solutions and design techniques to efficiently implement these systems in medical environment. All individual chapters are written by leading experts in their fields.  Contributions by authors are on various applications of ultra-wideband and the 60 GHz ISM band including circuit implementation, UWB and 60 GHz signal transmission around and in-body, antenna design solution, hardware implementation of body sensors, UWB transceiver design, 60 GHz transceiver design, UWB radar for contactless respiratory monitoring, and ultra-wideband based medical Imaging. The book will be a key resource for medical professionals, bio-medical engineers, and graduate and senior undergraduate students in computer, electrical, electronic and biomedical engineering disciplines.

Fluid mechanics --- Spectrometric and optical chemical analysis --- Human biochemistry --- Physical methods for diagnosis --- radars --- medische biochemie --- draadloze computernetwerken --- wearables --- biochemie --- pneumologie --- radiologie --- telecommunicatie --- medische beeldvorming --- spectrometrie --- Wireless communication systems in medical care. --- Ultra-wideband devices. --- Biomedical engineering.