Ram Accelerators


Book Description

Ram accelerators are among the most advanced tools for generating fluid dynamcis data in supersonic reacting systems. They require the combined action of combustion, wave systems and turbulence and are still a serious challenge for physicists and engineers. This book will serve as an introductionary textbook on ram accelerators and gives a thorough overview on research activities, performance modeling and high-pressure detonation dynamics.




Hypervelocity Launchers


Book Description

In the present volume numerous descriptions of Ram accelerators are presented. These descriptions provide good overview on the progress made and the present state of the Ram accelerator technology worldwide. In addition, articles describing light gas gun, ballistic range including a chapter dealing with shock waves in solids are given. Along with the technical description of considered facilities, samples of obtained results are also included. Each chapter is written by an expert in the described topic providing a comprehensive description of the discussed phenomena.




In-Memory Computing Hardware Accelerators for Data-Intensive Applications


Book Description

This book describes the state-of-the-art of technology and research on In-Memory Computing Hardware Accelerators for Data-Intensive Applications. The authors discuss how processing-centric computing has become insufficient to meet target requirements and how Memory-centric computing may be better suited for the needs of current applications. This reveals for readers how current and emerging memory technologies are causing a shift in the computing paradigm. The authors do deep-dive discussions on volatile and non-volatile memory technologies, covering their basic memory cell structures, operations, different computational memory designs and the challenges associated with them. Specific case studies and potential applications are provided along with their current status and commercial availability in the market.




Scientific and Technical Aerospace Reports


Book Description

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.




Laser Propulsion in Space


Book Description

Space launches have evoked the same vivid image for decades: bright orange flames exploding beneath a rocket as it lifts off and thunders into the sky. An alternative acceleration system could reshape that vision forever, with rockets leaving their energy source on the ground... or in space. Laser Propulsion in Space: Fundamentals, Technology, and Future Missions takes readers on a comprehensive journey from the theoretical overview of propulsion fundamentals, to reviews of current projects involving high-power CW fiber lasers and energetic mm-wave sources with their ongoing and potential end-use applications in beamed energy propulsion (BEP). Written by experts in the field, this mathematically sound reference text also highlights graphical solutions of equations' results, as well as case studies with worked-out examples, making this book an invaluable compendium for students, researchers, technology developers and futurists in understanding the promise and challenges of this emerging technology. - Covers beamed energy propulsion advances - Highlights state-of-the-art BEP applications of LEO debris removal, suborbital and orbital launch, solar system exploration, and interstellar lightsail probes, as well as advances in related photon source technologies and infrastructures - Includes opinion sections explaining why we as a technical society should care about each chapter's topic and the considerably good outcomes that can be achieved with laser engines - Is accompanied by a website with video clips and other ancillary materials to enhance insight




Modern Developments in Energy, Combustion and Spectroscopy


Book Description

This compendium of technical articles is dedicated to Professor Stanford Solomon Penner on the occasion of his 70th birthday. As one of the most prominent scientists of our times, he has been particularly instrumental in advancing the field of combustion science while simultaneously he has developed quantitative spectroscopy into an important engineering discipline, and is also a leading international expert on energy issues. Written primarily by researchers who were Professor Penner's doctorate students during the last four decades, the articles consist of original contributions as well as previously published papers that provide important insights into combustion, spectroscopy, and energy problems. Among the topics included are turbulent combustion, flame structure, detonations, spectroscopic diagnostics, spectroscopy of atmospheric gases, and physical problems associated with nuclear reactors as well as electric power distribution, and energy conversion. The book includes a short biography of Professor Penner and a complete bibliography of his publications.




Data Orchestration in Deep Learning Accelerators


Book Description

This Synthesis Lecture focuses on techniques for efficient data orchestration within DNN accelerators. The End of Moore's Law, coupled with the increasing growth in deep learning and other AI applications has led to the emergence of custom Deep Neural Network (DNN) accelerators for energy-efficient inference on edge devices. Modern DNNs have millions of hyper parameters and involve billions of computations; this necessitates extensive data movement from memory to on-chip processing engines. It is well known that the cost of data movement today surpasses the cost of the actual computation; therefore, DNN accelerators require careful orchestration of data across on-chip compute, network, and memory elements to minimize the number of accesses to external DRAM. The book covers DNN dataflows, data reuse, buffer hierarchies, networks-on-chip, and automated design-space exploration. It concludes with data orchestration challenges with compressed and sparse DNNs and future trends. The target audience is students, engineers, and researchers interested in designing high-performance and low-energy accelerators for DNN inference.




Mass Driver


Book Description

What Is Mass Driver The linear motor of a mass driver or electromagnetic catapult would be used to accelerate and catapult payloads up to high speeds. This non-rocket technique of spacelaunch is referred to as a mass driver or electromagnetic catapult. The electromagnets that are used in mass drivers both already in use and those that are being considered employ coils of wire that are activated by electricity. However, a rotary mass driver has also been suggested. The acceleration of a payload along a route is achieved by firing a sequence of electromagnets in sequential order. The momentum of the payload causes it to continue moving even after it has left the route. How You Will Benefit (I) Insights, and validations about the following topics: Chapter 1: Mass driver Chapter 2: Rocket Chapter 3: Spacecraft propulsion Chapter 4: Ion thruster Chapter 5: Pulsed plasma thruster Chapter 6: Beam-powered propulsion Chapter 7: Fusion rocket Chapter 8: Projectile Chapter 9: Railgun Chapter 10: Propellant Chapter 11: Coilgun Chapter 12: Orbital maneuver Chapter 13: Space gun Chapter 14: Momentum exchange tether Chapter 15: Launch loop Chapter 16: Plasma propulsion engine Chapter 17: Spacecraft electric propulsion Chapter 18: Reaction engine Chapter 19: Non-rocket spacelaunch Chapter 20: Field propulsion Chapter 21: Ram accelerator (II) Answering the public top questions about mass driver. (III) Real world examples for the usage of mass driver in many fields. (IV) 17 appendices to explain, briefly, 266 emerging technologies in each industry to have 360-degree full understanding of mass driver' technologies. Who This Book Is For Professionals, undergraduate and graduate students, enthusiasts, hobbyists, and those who want to go beyond basic knowledge or information for any kind of mass driver.







NASA Thesaurus


Book Description