A RASCAL In-Bore Dynamic Analysis of the Task B and Task C Electromagnetic Railguns

A RASCAL In-Bore Dynamic Analysis of the Task B and Task C Electromagnetic Railguns
Author:
Publisher:
Total Pages: 88
Release: 1995
Genre:
ISBN:

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Previous RASCAL in-bore gun dynamics analyses 90-mm railguns have shown high transverse accelerations can be expected because of anomalies in the bore straightness. A request was made for similar analyses to be made for the Task B and Task C 90-mm railguns, with the Sabot Launched Electromagnetic Gun KE (SLEKE) II projectile design. Results of the RASCAL analyses showed the importance of matching the contact stiffness of the rear and front bore riders of the SLEKE II designs. Numerous cases were run to show the effects of variations in contact stiffness. Mismatched contact stiffness resulted in elevated transverse accelerations at the less stiff of the two bore riding contacts. Comparisons of the results of this work are made against previous RASCAL analyses. These results verify the effect a kink in the bore centerline profile has on the projectile's in-bore response.

A Comparison of In-Bore Projectile Motion from an Electromagnetic Railgun Versus that of a Conventional Cannon Barrel

A Comparison of In-Bore Projectile Motion from an Electromagnetic Railgun Versus that of a Conventional Cannon Barrel
Author: Lawrence W. Burton
Publisher:
Total Pages: 44
Release: 1993
Genre:
ISBN:

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An investigation was undertaken to examine electromagnetic (EM) gun- barrel projectile interaction. the RASCAL code was used in this study because of its ability to easily manipulate relevant parameters such as gun tube centerline, projectile contact stiffness, and projectile design geometry. This work compares the projectile performance in the 9-MJ EM railgun at the University of Texas Center for Electromechanics (UTCEM) to that in a double- travel conventional gun. This comparison was made by varying the parameters listed above for two projectile designs, one projectile being the M829 Link round, the other, a preliminary EM design. It was believed that adoption of this format would identify specific areas of the EM gun-projectile system that excite transverse loading, with the results of this analysis presented here. RASCAL, Transverse acceleration, EM Railgun, In-bore projectile dynamics, Velocity, Electromagnetic guns.

Eclipse Phase - Gatecrashing

Eclipse Phase - Gatecrashing
Author: Rob Boyle
Publisher: Sandstorm Productions
Total Pages: 192
Release: 2011-01-15
Genre:
ISBN: 9780984583539

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Nanotechnology and Biosensors

Nanotechnology and Biosensors
Author: Dimitrios P Nikolelis
Publisher: Elsevier
Total Pages: 474
Release: 2018-06-27
Genre: Science
ISBN: 0128138858

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Nanotechnology and Biosensors shows how nanotechnology is used to create affordable, mass-produced, portable, small sized biosensors to directly monitor environmental pollutants. In addition, it provides information on their integration into components and systems for mass market applications in food analysis, environmental monitoring and health diagnostics. Nanotechnology has led to a dramatic improvement in the performance, sensitivity and selectivity of biosensors. As metal-oxide and carbon nanostructures, gold and magnetite nanoparticles, and the integration of dendrimers in biosensors using nanotechnology have contributed greatly in making biosensors more effective and affordable on a mass-market level, this book presents a timely resource on the topic. Highlights nanotechnology-based approaches to the detection of enzyme inhibitors, direct enzymatic and microbial detection of metabolites, and nutrients using biosensors Includes examples on how nanotechnology has lead to improvements in the construction of portable, selective and sensitive biosensing devices Offers thorough coverage of biomarker/biosensor interaction for the rapid detection of toxicants and pollutants

Bio#Futures

Bio#Futures
Author: Emmanuel Koukios
Publisher: Springer
Total Pages: 0
Release: 2022-05-07
Genre: Technology & Engineering
ISBN: 9783030649715

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This volume presents a timely recognition, warning and mapping of the fast approaching wave, or “bio-tsunami”, of global socio-technical transformation, built by a much wider spectrum of converging powers, including biotechnology, new agriculture, novel foods, health, quality of life, environment, energy, sustainability, education, knowledge management, and design of smart applications. The book contains eight sections corresponding to different clusters of bioeconomic and socio-technical change, as identified by the editors’ “Scanning the Horizon” foresight research; it also offers an integrated view of the future bioeconomy landscape though the convergence of several technologies that affect everyday life. The clusters offer methodologies for forecasting the future bioeconomy, and how these predictions can affect target-setting and the orientation of policies and actions to manage cultural and societal change, and achieve sustainable development in less developed areas. The book will be of interest to researchers, producers, logistics experts, policy makers, regulators, business and financial institutions, and biotechnologists (e.g. geneticists, food experts, etc.).

Aliens/Predator: Panel To Panel

Aliens/Predator: Panel To Panel
Author: Various
Publisher: Dark Horse Comics
Total Pages: 196
Release: 2019-09-03
Genre: Comics & Graphic Novels
ISBN: 162115825X

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Two extraterrestrial species have haunted — and hunted — mankind throughout history: one a parasitic killing machine that uses humans as unwilling hosts for its lethal offspring, the other a relentless stalker that uses otherworldly stealth technology and weaponry to take men as grisly trophy kills. For over two decades, Dark Horse Comics has catalogued these terrifying contacts, harnessing the talents of a virtual who's who list of comics, science-fiction and fantasy illustrators to bring these tales to life. And now, one deluxe volume gathers all the best of these visual horrors into one arena. Aliens/Predator: Panel to Panel showcases page after page of some of the most compelling artwork ever seen in graphic fiction, stunning visions by John Bolton, Dave Dorman, Mark Schultz, Richard Corben, Mike Mignola, Doug Wheatley, Arthur Suydam, Mark A. Nelson, Alex Maleev, Den Beauvais, Glenn Fabry, Jon Foster, David Michael Beck, Sam Keith, Doug Mahnke and many, many more.

Marvel's Captain America: The First 80 Years

Marvel's Captain America: The First 80 Years
Author: Titan Comics
Publisher: Titan Comics
Total Pages: 196
Release: 2021-07-13
Genre: History
ISBN: 1787738299

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Eighty years ago, as the free world was threatened by fascism, a Super Hero was created to boost morale, offering a symbol of hope. Created by master storytellers Joe Simon and Jack Kirby, Captain America wore the colors of the bold red, white, and blue of the American flag. This deluxe volume explores Captain America's adventures decade by decade as he is reinvented in the 1960s by Kirby himself and Stan Lee to become a modern symbol of justice. With vintage art from the Marvel vaults and profiles of the creators behind the icon, this special tribute presents a unique guide to one of Marvel's most enduring heroes.