Search
Now showing items 171-180 of 582
Flow noise reduction from superhydrophobic surfaces
(2012)
This work investigates how a highly (super)hydrophobic
surface can be used to reduce turbulence-generated drag and
noise on a towed streamer cable. The work is done by analyzing
full-scale drag and flow noise measurements ...
The Effect of Internal Wave-Related Features on Synthetic Aperture Sonar
(2015)
In October 2012, the Centre for Maritime Research and Experimentation (CMRE, La Spezia, Italy) conducted trials from the NATO research vessel (RV) Alliance, off Elba Island, Italy. During this trial, data were collected ...
Mechanical Properties of Smokeless Composite Rocket Propellants Based on Prilled Ammonium Dinitramide
(2012)
Ammonium dinitramide (ADN) is a high performance solid oxidizer of interest for use in high impulse and smokeless composite rocket propellant formulations. While rocket propellants based on ADN may be both efficient, clean ...
Sum-frequency generation of high-energy and hig-beam-quality ultraviolet pulses
(2011)
Sum-frequency generation of UV pulses exceeding 25 mJ and with beam quality has been demonstrated by mixing the third harmonic pulses of a flash lamp pumped 1.06 μm Nd:YAG laser with 1.7 μm pulses from an optical parametric ...
The Seven Ways to Find Heading
(2016)
A magnetic compass has too large a heading error for many applications, and it is often not obvious how to achieve an accurate heading, in particular for low-cost navigation systems. However, there are several different ...
Should I Stay or Should I Go? Explaining Variation in Western Jihadists' Choice between Domestic and Foreign Fighting
(2013)
This article studies variation in conflict theater choice by Western jihadists in an effort to understand their motivations. Some militants attack at home, whereas others join insurgencies abroad, but few scholars have ...
The Integration of Trusted Platform Modules into a Tactical Identity Management System
(2013)
The use of integrity protection mechanisms from a tactical Identity Management (IdM) system is the focus of this paper. While traditional identity management systems supports authentication, and some also access control, ...
Neutral Polymeric Bonding Agents (NPBA) and Their Use in Smokeless Composite Rocket Propellants Based on HMXGAP- BuNENA
(2012)
Very few efficient bonding agents for use in solid rocket propellants with nitramine filler materials and energetic binder systems are currently available. In this work, we report the synthesis, detailed characterization, ...
High assurance information exchange based on publish-subscribe and ABAC methods
(2014)
The presented effort employs a combination of publish-subscribe distribution and ABAC (Attribute Based Access Control) methods to control the information exchange between security domains. It follows strictly the "separation ...
Russian defense spending after 2010: the interplay of personal, domestic, and foreign policy interests
(2017)
Since 2010, Russia’s defense spending has seen an average annual real growth of 10%, causing a profound shift in the composition of government expenditure. This article examines the formal and informal processes through ...