Browsing Articles by Title
Now showing items 773-792 of 842
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Training videos to prevent cold weather injuries
(2023-03-29)Cold weather injuries (CWIs) are a challenge during military training, exercises and operations in Arctic conditions. Soldier performance in these challenging conditions depends on protective equipment, knowledge, personal ... -
Tribal engagement strategies in the Islamic Emirate of Azawad
(2022-09-02)The Tuareg uprising in northern Mali in 2012 culminated in the establishment of the Islamic Emirate of Azawad, a proto-state run jointly by Tuareg Islamists in Ansar Dine and foreign jihadists with connections to al-Qaida ... -
Trust Management in Cross Domain Operations
(2015)Protocols for communication across security domains need to be evaluated against their architectural properties, not only their security properties. The protocols have connectivity and capacity requirements, they have ... -
Trust, ethnic diversity, and personal contact: A field experiment
(2019-03-22)We study how close personal contact with minorities affects in-group and out-group trust in a field experiment in the armed forces. Soldiers are randomly assigned to rooms with or without ethnic minorities. At the end of ... -
Trusted Service Discovery Through Identity Management
(2013)Service oriented environments face threats from unauthorized clients and fake or compromised services. The threats exist both during service discovery and service invocation, and should be mitigated through the same security ... -
Trusting machine intelligence: artificial intelligence and human-autonomy teaming in military operations
(2023-11-29)Continuous advances in artificial intelligence has enabled higher levels of autonomy in military systems. As the role of machine-intelligence expands, effective co-operation between humans and autonomous systems will become ... -
Tunable holmium-doped fiber laser with multiwatt operation from 2025 nm to 2200 nm
(2019-11-18)The emission band of holmium-doped silica fibers extends beyond 2200 nm, which means these lasers have the potential of covering considerable parts of the atmospheric transmission window between ∼2100 nm and 2250 nm. ... -
Turbulence characterization and image processing data sets from a NATO RTO SET 165 trial in Dayton, Ohio, USA
(2012)The performance of optical systems is degraded by atmospheric turbulence. Over propagation distances that exceed several kilometers, it is difficult to evaluate its impact because of terrain variability - a factor that ... -
Two medical therapies very effective shortly after high levels of soman poisoning in rats, but only one with universal utility
(2013)A treatment regimen consisting of HI-6, scopolamine, and physostigmine (termed the physostigmine regimen) has been based on the serendipitous discovery that it exerts powerful antidotal effects against high levels of soman ... -
Typical Products for Outside Audiences: The Role of Typicality When Products Traverse Countries
(2022-12-02)While organization theorists have established the importance of typicality, most studies examine situations where producers and audiences dwell within the same category system (e.g., a country, industry, or market). ... -
Tyske reaksjoner på Ukraina-krigen: en ny kraft for transatlantisk samarbeid?
(2023-05-02)Det russiske angrepet på Ukraina 24. februar 2022 er ikke bare et angrep på landets territoriale integritet og 44 millioner innbyggere. Angrepet er også et angrep på den europeiske og transatlantiske sikkerhetsordenen ... -
Ultrafast Pulse Compression in Bulk with > 20 Times Spectral Broadening Factor from a Single Stage
(2021-11-01)We introduce the combination of multi-pass cell and multi-plate spectral broadening. We demonstrate the compression of 110-μJ pulses from 900-fs to 60-fs in a single stage and report broadening to 38-fs transform-limit by ... -
Ultrawideband Gated Step Frequency Ground-Penetrating Radar
(2012)We describe a prototype ultrawideband radar. We show how the system was designed and how the hardware was developed for the radar prototype. Waveform generation, radar parameters, and signal processing for the stepped ... -
Ultrawideband underwater acoustic communication channels
(2013)Traditional channel models for communications research are designed for narrowband systems. Underwater acoustic communication systems use a bandwidth that is not small compared with the center frequency of the signal and ... -
Under-ice mid-frequency acoustic transmissionand communication in two Arctic Oceanenvironments
(2023-02-23)This paper presents data from mid-frequency (4−8 kHz) under-ice acoustic transmission and communication experiments in the Nansen Basin and in the Beaufort Sea of the Arctic Ocean. Measured impulse responses to range ~10 ... -
Understanding Influence Operations in Social Media: A Cyber Kill Chain Approach
(2020-11-14)Discussions about recent state-run influence operations in social media often focus only on quantitative elements—the number of people interacting with fake news or how many tweets were sent by bots. This article suggests ... -
Understanding the Threat of Nuclear, Biological and Chemical Warfare
(2021)Weapons of mass destruction are not merely Cold War relics. Recent years have seen the use of biological and chemical agents in the United States, Syria, Malaysia and the United Kingdom. The faltering of strategic arms ... -
Underwater Acoustic Communications: Long-Term Test of Turbo Equalization in Shallow Water
(2008)Acoustic telemetry sea trials lasting for three months with experiment periods of 7 h have been carried out, using a turbo receiver. The communication channel is shallow; the depth is approximately 10 m, and the range is ... -
Underwater Acoustic Network Simulation With Lookup Tables From Physical-Layer Replay
(2015)An underwater acoustic network simulation methodology is presented that is based on lookup tables (LUTs) with physical-layer error ratios. These LUTs are prepared with a validated replay channel simulator, which is here ...