Simulation and Decomposition of Multiple Explosions

Simulation and Decomposition of Multiple Explosions

Author: D. G. Lambert

Publisher:

Published: 1977

Total Pages: 76

ISBN-13:

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The purpose of the study is to develop procedures for using seismic measurements to verify the number and yields of individual explosions making up a multiple event. Multiple explosion seismograms are simulated by straightforward summations of single explosion records. Several types of multiple explosions are simulated. These include closely spaced equal yield explosions (no consideration given to propagation path effects between explosions and receiver) and relatively more widely spaced explosions (propagation path effects included) of varying yields. The data employed are principally close-in seismic recordings of the Nevada Test Site explosions obtained from Sandia Laboratories in Albuquerque, New Mexico. Decomposition of the simulated multiple explosion records is accomplished using a series of narrow-band filters with center frequencies ranging from 3 to 100 Hz. In general, our results show that the narrow-band filter technique is able to achieve accurate time separation and amplitude scaling. The limitation on the technique is essentially the requirement for the presence of sufficient signal energy at frequencies greater than about 3.5 times the inverse of the lag time between arriving signals. (Author).


Neurotrauma

Neurotrauma

Author: Raj K. Narayan

Publisher: McGraw-Hill

Published: 1996

Total Pages: 1558

ISBN-13: 9780070456624

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This reference is a comprehensive work in the field of neurotrauma and critical care. It incorporates the fields of head injury, spinal injury and basic neurotrauma research into one source. The major emphasis is on the treatment of patients with head and spinal cord injury, including the management of all other problems that bear upon the care of these patients.


Brain Neurotrauma

Brain Neurotrauma

Author: Firas H. Kobeissy

Publisher: CRC Press

Published: 2015-02-25

Total Pages: 718

ISBN-13: 1466565993

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With the contribution from more than one hundred CNS neurotrauma experts, this book provides a comprehensive and up-to-date account on the latest developments in the area of neurotrauma including biomarker studies, experimental models, diagnostic methods, and neurotherapeutic intervention strategies in brain injury research. It discusses neurotrauma mechanisms, biomarker discovery, and neurocognitive and neurobehavioral deficits. Also included are medical interventions and recent neurotherapeutics used in the area of brain injury that have been translated to the area of rehabilitation research. In addition, a section is devoted to models of milder CNS injury, including sports injuries.


Understanding Explosions

Understanding Explosions

Author: Daniel A. Crowl

Publisher: John Wiley & Sons

Published: 2010-08-13

Total Pages: 230

ISBN-13: 0470925205

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There are many different types of explosions, each with its own complex mechanism. Understanding explosions is important in preventing them. This reference provides valuable information on explosions for everyone involved in the operation, design, maintenance, and management of chemical processes, helping enhance understanding of the nature of explosions and the practical methods required to prevent them from occurring. The text includes: Fundamental basis for explosions Explosive and flammable behavior and characteristics of materials Different types of explosions Fire and explosion hazard recognition Practical methods for preventing explosions or minimizing the potential consequences Additional references Understanding Explosions provides a practical understanding of explosion fundamentals, including the different types of explosions, the explosive and flammable behavior of materials, and the hazards related to fires and explosions. It also discusses practical methods to prevent and minimize the probability and consequence of an explosion during routine use of flammable, combustible and/or reactive materials.


The Many Facets of Cosmic Explosions

The Many Facets of Cosmic Explosions

Author: Alicia Soderberg

Publisher: Universal-Publishers

Published: 2007-10

Total Pages: 265

ISBN-13: 1581123779

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Over the past few years, long-duration gamma-ray bursts (GRBs), including the subclass of X-ray flashes (XRFs), have been revealed to be a rare variety of Type Ibc supernova (SN Ibc). While all these events result from the death of massive stars, the electromagnetic luminosities of GRBs and XRFs exceed those of ordinary Type Ibc SNe by many orders of magnitude. The observed diversity of stellar death corresponds to large variations in the energy, velocity, and geometry of the explosion ejecta. Using multi-wavelength (radio, optical, X-ray) observations of the nearest GRBs, XRFs, and SNe Ibc, I show that GRBs and XRFs couple at least 1048 erg to relativistic material while SNe Ibc typically couple less than 1048 erg to their fastest (albeit non-relativistic) outflows. Specifically, I find that less than 3 percent of local SNe Ibc show any evidence for association with a GRB or XRF. Interestingly, this dichotomy is not echoed by the properties of their optical SN emission, dominated by the radioactive decay of Nickel-56; I find that GRBs, XRFs, and SNe Ibc show significant overlap in their optical peak luminosity and photospheric velocities. Recently, I identified a new class of GRBs and XRFs that are under-luminous in comparison with the statistical sample of GRBs. Owing to their faint high-energy emission, these sub-energetic bursts are only detectable nearby (z


Monitoring Underground Nuclear Explosions

Monitoring Underground Nuclear Explosions

Author: Ola Dahlman

Publisher: Elsevier

Published: 2016-10-27

Total Pages: 451

ISBN-13: 1483165167

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Monitoring Underground Nuclear Explosions focuses on the checking of underground nuclear explosions, including the Comprehensive Test Ban Treaty (CTB), seismological stations, earthquake-source models, and seismicity. The publication first elaborates on test-ban negotiations, nuclear explosions, seismological background, and explosions and earthquakes as seismic sources. Concerns cover comparison between explosion-source and earthquake-source models, theoretical calculation of seismic waves, earth structure, seismicity, nuclear test activities, bomb designs, and disarmament treaties. The manuscript then tackles seismological stations, detection, event definition and location, depth estimation, and identification. Topics include multistation discriminants, statistical aspects, long-period and short-period signals, near distances, location by a network of stations, international data exchange, station detection capabilities, and station networks. The book examines the monitoring of a comprehensive test-ban treaty, nonseismological identification, evasion, peaceful nuclear explosions, and yield estimation. The text is a dependable reference for researchers interested in the monitoring of underground nuclear explosions.


U.S. Army Improvised Munitions Handbook

U.S. Army Improvised Munitions Handbook

Author: Department of the Army

Publisher: Simon and Schuster

Published: 2012-02-01

Total Pages: 421

ISBN-13: 1510720561

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You don’t need to be a trained soldier to fully appreciate this edition of the U.S. Army Improvised Munitions Handbook (TM 31-210). Originally created for soldiers in guerilla warfare situations, this handbook demonstrates the techniques for constructing weapons that are highly effective in the most harrowing of circumstances. Straightforward and incredibly user-friendly, it provides insightful information and step-by-step instructions on how to assemble weapons and explosives from common and readily available materials. Over 600 illustrations complement elaborate explanations of how to improvise any number of munitions from easily accessible resources. Whether you’re a highly trained solider or simply a civilian looking to be prepared, the U.S. Army Improvised Munitions Handbook is an invaluable addition to your library.


Dust Explosions

Dust Explosions

Author:

Publisher: Academic Press

Published: 2019-07-05

Total Pages: 328

ISBN-13: 0128175516

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Methods in Chemical Process Safety, Volume Three, addresses the most important challenges, recent advancements and contributions in chemical process safety. The work helps researchers and professionals obtain guidance on the selection and practice of chemical process safety methods. Chapters in the book cover Experimental Methods, Hazard Identification, Risk Assessment, Safety Measures, Regulations, Guidelines and Standards, Emerging/Unique Scenarios, and more. Users will find a complete guide that presents tactics in process safety management that are now globally recognized as the primary approach for establishing a high level of safety in operations. As process safety is now a disciplined framework for managing the integrity of operating systems and processes handling hazardous substances, and because continued occurrence of major losses have had a significant impact on the industry’s approaches to modern process safety, this book is a must have for those in the industry. Acquaints the reader/researcher with the fundamentals of process safety Provides the most recent advancements and contributions in each topic from a practical point-of-view Gives readers the views/opinions of experts on each topic