Results 1 to 10 of about 16,721 (248)

Analysis of Mobile Malware: A Systematic Review of Evolution and Infection Strategies

open access: yesJournal of Information Security and Cybercrimes Research, 2021
The open-source and popularity of Android attracts hackers and has multiplied security concerns targeting devices. As such, malware attacks on Android are one of the security challenges facing society.
Ashawa Moses, Sarah Morris
doaj   +1 more source

Development of Flat Panel Active Phased Array Antennas Using 5G Silicon RFICs at Ku- and Ka-Bands

open access: yesIEEE Access, 2020
This article presents the design and development of two all flat panel phased array antennas (PAA) by using emerging 5G Silicon radio frequency integrated circuits (RFICs) at Ku- and Ka-bands.
Jia-Chi Samuel Chieh   +7 more
doaj   +1 more source

Sidelobe Suppression Techniques for Near-Field Multistatic SAR

open access: yesSensors, 2023
Multirotor Unmanned Air Systems (UAS) represent a significant improvement in capability for Synthetic Aperture Radar (SAR) imaging when compared to traditional, fixed-wing, platforms.
George A. J. Price   +3 more
doaj   +1 more source

High On-Off Ratio Graphene Switch via Electrical Double Layer Gating

open access: yesIEEE Access, 2020
This paper discusses the production and investigation of novel graphene switches by gating through an electrical double layer (EDL). Controlled voltage biases across a liquid dielectric and graphene induce electrochemical reactions within the dielectric ...
Cody K. Hayashi   +4 more
doaj   +1 more source

Noise Driven Coupled Nonlinear Systems: A “Dynamical Multilayer Perceptron” Demonstrating XOR Functionality

open access: yesIEEE Access, 2023
Coupled nonlinear dynamical systems are known to display remarkable behavioral similarities to some aspects of neural activity in biology. When considering the computational properties of such a neuromorphic network (or even an electronic biomimetic ...
Paul R. De La Houssaye   +4 more
doaj   +1 more source

Fin Whale Song Patterns Shift Over Time in the Central North Pacific

open access: yesFrontiers in Marine Science, 2020
Male fin whales sing by producing 20 Hz pulses in regular patterns of inter-note intervals. While singing, fin whales may also alternate the frequency ranges of their notes.
Tyler A. Helble   +5 more
doaj   +1 more source

Singing Fin Whale Swimming Behavior in the Central North Pacific

open access: yesFrontiers in Marine Science, 2021
Male fin whales sing using 20 Hz pulses produced in regular patterns of inter-note intervals, but little is known about fin whale swimming behavior while they are singing.
Regina A. Guazzo   +6 more
doaj   +1 more source

North Pacific minke whales call rapidly when calling conspecifics are nearby

open access: yesFrontiers in Marine Science, 2022
North Pacific minke whale (Balaenoptera acutorostrata) boing calls are commonly detected in Hawaiian waters. When producing boing vocalizations, minke whales seem to be in one of two calling behavioral states.
Cameron R. Martin   +7 more
doaj   +1 more source

Minke whales change their swimming behavior with respect to their calling behavior, nearby conspecifics, and the environment in the central North Pacific

open access: yesFrontiers in Marine Science, 2023
Behavioral responses to sonar have been observed in a number of baleen whales, including minke whales (Balaenoptera acutorostrata). Previous studies used acoustic minke whale boing detections to localize and track individual whales on the U.S.
Tyler A. Helble   +7 more
doaj   +1 more source

Information Warfare and Deception [PDF]

open access: yesInforming Science: The International Journal of an Emerging Transdiscipline, 2006
This paper examines the history of the phenomenon of Information Warfare and the increasingly dominant role that deception is taking within its framework. The concept of information warfare began as a technology oriented tactic to gain information dominance by superior command and control.
openaire   +1 more source

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