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  • CTBT
  • Differentiable dynamical systems
  • English  (16)
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  • English  (16)
  • Czech
  • Italian
  • 1
    Keywords: Comprehensive Nuclear-Test-Ban Treaty ; CTBT ; nuclear explosions ; surface waves ; monitoring
    Description / Table of Contents: On September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data center (IDC), and on-site inspections to verify compliance. Seismic methods play the lead role in monitoring the CTBT. This volume concentrates on the measurement and use of surface waves in monitoring the CTBT. Surface waves have three principal applications in CTBT monitoring: to help discriminate nuclear explosions from other sources of seismic energy, to provide mathematical characterizations of the seismic energy that emanates from seismic sources, and to be used as data in inversion for the seismic velocity structure of the crust and uppermost mantle for locating small seismic events regionally. The papers in this volume fall into two general categories: the development and/or application of methods to summarize information in surface waves, and the use of these summaries to advance the art of surface-wave identification, measurement, and source characterization. These papers cut across essentially all of the major applications of surface waves to monitoring the CTBT. This volume therefore provides a general introduction to the state of research in this area and should be useful as a guide for further exploration.
    Pages: Online-Ressource (VI, 243 Seiten)
    ISBN: 9783764365516
    Language: English
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  • 2
    Keywords: Comprehensive Nuclear-Test-Ban Treaty ; CTBT ; geophysics
    Description / Table of Contents: In September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data center, and onsite inspections, to verify compliance. The problem of identifying small-magnitude banned nuclear tests and discriminating between such tests and the background of earthquakes and mining-related seismic events, is a challenging research problem. Because they emphasize CTBT verification research, the 12 papers in this special volume primarily addresses regional data recorded by a variety of arrays, broadband stations, and temporarily deployed stations. Nuclear explosions, earthquakes, mining-related explosions, mine collapses, single-charge and ripple-fired chemical explosions from Europe, Asia, North Africa, and North America are all studied. While the primary emphasis is on short-period, body-wave discriminants and associated source and path corrections, research that focuses on long-period data recorded at regional and teleseismic distances is also presented Hence, these papers demonstrate how event identification research in support of CTBT monitoring has expanded in recent years to include a wide variety of event types, data types, geographic regions and statistical techniques.
    Pages: Online-Ressource (VI, 284 Seiten)
    ISBN: 9783764366759
    Language: English
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  • 3
    Keywords: Comprehensive Nuclear-Test-Ban Treaty ; CTBT ; monitoring ; seismic event location
    Description / Table of Contents: In September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data centre (IDC), and on-site inspections, to verify compliance. This volume contains research papers focusing on seismic ecent location in the CTBT context. The on-site inspection protocol of the treaty specifies a search area not to exceed 1000 square km. Much of the current research effort is therefore directed towards refining the accuracy of event location by including allowances for three-dimensional structure within the Earth. The aim is that the true location of each event will lie within the specified source zone regarding postulated location. The papers in this volume cover many aspects of seismic event location, including the development of algorithms suitable for use with three-dimensional models, allowances for regional structure, use of calibration events and source-specific station corrections. They provide a broad overview of the current international effort to improve seismic event location accuracy, and the editors hope that it will stimulate increased interest and further advances in this important field.
    Pages: Online-Ressource (IV, 419 Seiten)
    ISBN: 9783764365349
    Language: English
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  • 4
    Keywords: Comprehensive Nuclear-Test-Ban Treaty ; CTBT ; nuclear explosions ; data processing ; infrasound
    Description / Table of Contents: On September 10, 1996, The United Nations General Assembly adopted the Copmprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data center (IDC), and on-site inspections, to verify compliance. This volume presents certain recent research results pertaining on methods used to process data recorded by instruments of the International Monitoring System (IMS) and addressing recording infrasound signals generated by atmospheric explosions. Six papers treating data processing provide an important selection of topics expected to contribute to improving our ability to successfully monitor a CTBT. Five papers concerning infrasound include descriptions of ways in which that important research area can contribute to CTBT monitoring, the automatic processing of infrasound data, and site conditions that serve to improve the quality of infrasound data.
    Pages: Online-Ressource (283 Seiten)
    ISBN: 9783764366766
    Language: English
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  • 5
    Keywords: Comprehensive Nuclear-Test-Ban Treaty ; CTBT ; crustal structure ; monitoring ; wave propagation
    Description / Table of Contents: On September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data center (IDC), and on-site inspections to verify compliance. Successful monitoring of a CTBT requires that we detect and identify all nuclear explosions. Since many events of concern will be too small to be detected teleseismically, this capability requires the use of regional-distance seismograms. The complexity of regional seismograms presents many technical challenges for a monitoring program. This issue focuses on problems associated with regional wave propagation through complex media. It includes papers that investigate regional variations of elastic and anelastic properties of Eurasia, the blockage of regional phases by sedimentary basins, methods for modeling regional wave propagation and for calibrating seismic wave paths in order to extract amplitude variations and source parameters. These papers illustrate the research and development necessary for acquiring an understanding of regional wave propagation which in turn provides the foundation for operational tools used to monitor a CTBT.
    Pages: Online-Ressource (V, 211 Seiten)
    ISBN: 9783764365509
    Language: English
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  • 6
    Keywords: Comprehensive Nuclear-Test-Ban Treaty ; CTBT ; estimation ; identification ; monitoring
    Description / Table of Contents: This volume presents summaries of recent research results on the related subjects of source processes and explosion yield estimation, which are important elements of any treaty verification system. The term Source Processes, in the context of nuclear test monitoring, refers to a wide range of research topics. In a narrow definition, it describes the complex physical phenomena that are directly associated with a nuclear explosion, and the catastrophic deformation and transformation of the material surrounding the explosion. In a broader sense, it includes a host of topics related to the inference of explosion phenomena from seismic and other signals. A further widening of the definition includes the study and characterization of source processes of events other than nuclear, such as earthquakes and, in particular, mining explosions. This latter research is especially important relative to the question of identifying and discriminating nuclear explosions from other seismic events. Explosion Yield Estimation deals with the corresponding inverse problem of inferring explosion source characteristics through analyses of the various types of seismic signals produced by the explosion. This is a complex technical task which has been the focus of some of the most contentious treaty monitoring debates. The current compilation of eight articles on Source Processes and six articles on Explosion Yield Estimation gives a good representation of state-of-the-art research currently being conducted in the broad area of seismic source characterization in the context of nuclear test monitoring.
    Pages: Online-Ressource (261 Seiten)
    ISBN: 9783764365523
    Language: English
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  • 7
    Keywords: Comprehensive Nuclear-Test-Ban Treaty ; CTBT ; nuclear explosions ; hydroacoustics ; monitoring
    Description / Table of Contents: In September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data centre (IDC), and on-site inspections, to verify compliance. A global hydroacoustic monitoring system is being planned and implemented for verification of the CTBT. Much of the research conducted over the past several decades on acoustic surveillance of the oceans, formerly driven by the need to detect and track submarines, is now being applied to the development of effective monitoring methods to verify compliance with the CTBT. The aim of this volume on Hydroacoustic Monitoring of the CTBT is to summarize the research being conducted in this field and to provide basic references for future research. Much of the new research emphasizes major advances in understanding the coupling of ocean acoustic waves with elastic waves in the solid Earth. Topics covered include source excitation, detection and classification of events generating hydroacoustic signals, discrimination between underwater explosions and naturally occurring events, as well as topics in coupling of acoustic to seismic wavefields.
    Pages: Online-Ressource (V, 205 Seiten)
    ISBN: 9783764365387
    Language: English
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  • 8
    Unknown
    Amsterdam ; Boston : Elsevier
    Keywords: DDC 515.352 ; LC QA614.8 ; Differentiable dynamical systems
    Pages: Online-Ressource (xii, 1220 pages)
    Edition: 1st ed
    ISBN: 9780444826695
    Language: English
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  • 9
    Unknown
    Amsterdam ; New York : North-Holland
    Keywords: DDC 514/.72 ; LC QA614.8 ; Differentiable dynamical systems ; Topological dynamics
    Pages: Online-Ressource (viii, 416 pages)
    ISBN: 9780444899170
    Language: English
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  • 10
    Unknown
    Amsterdam ; Boston : Elsevier
    Keywords: DDC 515/.724 ; LC QA329 ; Differentiable dynamical systems ; Operator equations
    Pages: Online-Ressource (xiii, 289 pages)
    Edition: 1st ed
    ISBN: 9780444527950
    Language: English
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  • 11
    Unknown
    Amsterdam ; New York : North Holland
    Keywords: DDC 515.39 ; LC QA614.8 ; Differentiable dynamical systems
    Pages: Online-Ressource (vii, 1222 ppages)
    Edition: 1st ed
    ISBN: 9780444520555
    Language: English
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  • 12
    Unknown
    Amsterdam ; Boston : Elsevier
    Keywords: DDC 330.01515625 ; LC HB135 ; Difference equations ; Differentiable dynamical systems ; Economics, Mathematical
    Description / Table of Contents: This book is a unique blend of difference equations theory and its exciting applications to economics. It deals with not only theory of linear (and linearized) difference equations, but also nonlinear dynamical systems which have been widely applied to economic analysis in recent years. It studies most important concepts and theorems in difference equations theory in a way that can be understood by anyone who has basic knowledge of calculus and linear algebra. It contains well-known applications and many recent developments in different fields of economics. The book also simulates many models to illustrate paths of economic dynamics.〈P〉 Key Features:〈P〉 A unique book concentrated on theory of discrete dynamical systems and its traditional as well as advanced applications to economics. Mathematical definitions and theorems are introduced in a systematic and easily accessible way. Examples are from almost all fields of economics; technically proceeding from basic to advanced topics. Lively illustrations with numerous figures. Numerous simulation to see paths of economic dynamics. Comprehensive treatment of the subject with a comprehensive and easily accessible approach. Key Features:〈P〉 A unique book concentrated on theory of discrete dynamical systems and its traditional as well as advanced applications to economics. Mathematical definitions and theorems are introduced in a systematic and easily accessible way. Examples are from almost all fields of economics; technically proceeding from basic to advanced topics. Lively illustrations with numerous figures. Numerous simulation to see paths of economic dynamics. Comprehensive treatment of the subject with a comprehensive and easily accessible approach
    Pages: Online-Ressource (ix, 448 pages)
    ISBN: 9780444521972
    Language: English
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  • 13
    Unknown
    London ; New York : Academic Press
    Keywords: DDC 510 s ; LC QA3 ; Differentiable dynamical systems
    Pages: Online-Ressource (x, 259 pages)
    ISBN: 9780123744500
    Language: English
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  • 14
    Unknown
    San Diego, CA : Academic Press
    Keywords: DDC 570/.1/5118 ; LC QH323.5 ; Biology - Mathematical models ; Differentiable dynamical systems
    Pages: Online-Ressource (187 pages)
    ISBN: 9780122491030
    Language: English
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  • 15
    Unknown
    Amsterdam ; New York : North Holland
    Keywords: DDC 515.39 ; LC QA614.8 ; Differentiable dynamical systems
    Pages: Online-Ressource (ix, 1086 ppages)
    Edition: 1st ed
    ISBN: 9780444501684
    Language: English
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  • 16
    Publication Date: 2023-10-26
    Description: For the purpose of monitoring for compliance with the Comprehensive Nuclear-Test-Ban Treaty (CTBT), the International Monitoring System (IMS) is being established that includes 40 sensor systems for atmospheric xenon radioactivity. Its purpose is to monitor the atmosphere for signatures that may indicate a nuclear explosion. Normal operational releases of radioxenon from nuclear facilities can regularly be observed by these very high-sensitive noble gas systems. Existing best estimates of releases for a generic year are unlikely to apply for any specific year at the level of individual facilities because their releases are highly variable and can change by several orders of magnitude from year to year. In this paper, best knowledge of the radioxenon emission inventory from nuclear power plants (NPPs) is collected for the calendar year 2014. The distribution function for each CTBT relevant radioxenon isotope is derived from all releases from NPPs as reported for 2014. The data of this paper can be used for developing and validating methods based on atmospheric transport modelling that are designed to enhance understanding of the impact of known sources on the IMS background observations.
    Description: Universität Hamburg (1037)
    Keywords: ddc:551.5 ; CTBT ; radioxenon ; emission inventory ; radionuclide monitoring ; atmospheric radioactivity
    Language: English
    Type: doc-type:article
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