Results 71 to 80 of about 1,275,223 (320)
Robust Spectrum Sensing Demonstration Using a Low-Cost Front-End Receiver
International Journal of Antennas and Propagation, 2015 Spectrum Sensing (SS) is an important function in Cognitive Radio (CR) to detect primary users. The design of SS algorithms is one of the most challenging tasks in CR and requires innovative hardware and software solutions to enhance detection ...
Daniele Borio +3 more
doaj +1 more source
Non-commutative Digital Signatures [PDF]
arXiv, 2012 The objective of this work is to survey several digital signatures proposed in the last decade using non-commutative groups and rings and propose a digital signature using non-commutative groups and analyze its security.
arxiv
Shape Memory Polymer‐Based Hook‐and‐Loop Fastener for Robust Bonding and on‐Demand Easy Separation
Advanced Engineering Materials, EarlyView.A 3D shape memory polymer‐based hook‐and‐loop fastener, fabricated using projection microstereolithography and molding, offers tunable bonding strength through temperature control. When heated from 25 to 70 °C, the fastener softens and deforms easily, reducing bonding strength by 20‐fold for on‐demand easy separation.
Chen Yang +5 more
wiley +1 more source
arXiv, 2023 In an increasingly digitized world, the secure management and trade of digital assets have become a pressing issue. This project aims to address this challenge by developing a decentralized application (dApp) that leverages blockchain technology and deep learning models to provide secure and efficient digital asset management, with a focus on NFTs. The
arxiv
Online Security in the Middle East and North Africa: A Survey of Perceptions, Knowledge, and Practice [PDF]
, 2011 Digital communication has become a more perilous activity, particularly for activists, political dissidents, and independent media. The recent surge in digital activism that has helped to shape the Arab spring has been met with stiff resistance by ...
Ethan Zuckerman +4 more
core
Advanced Engineering Materials, EarlyView.Laboratory protocols for producing thin‐film pH electrodes for sterilized single‐use technologies have been successfully developed into a semiautomated workflow, with higher throughput and precision of membrane thickness. Accuracies are within 0.05 pH units versus ground truth, and uncertainty analysis reveals the largest sources of error to be derived
Bingyuan Zhao +4 more
wiley +1 more source
Light Fields for Face Analysis
Sensors, 2019 The term “plenoptic” comes from the Latin words plenus (“full”) + optic. The plenoptic function is the 7-dimensional function representing the intensity of the light observed from every position and direction in 3-dimensional ...
Chiara Galdi +5 more
doaj +1 more source
Structurally Colored Physically Unclonable Functions with Ultra‐Rich and Stable Encoding Capacity
Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.This study reports a design strategy for generating bright‐field resolvable physically unclonable functions with extremely rich encoding capacity coupled with outstanding thermal and chemical stability. The optical response emerges from thickness‐dependent structural color formation in ZnO features, which are fabricated by physical vapor deposition ...
Abidin Esidir +8 more
wiley +1 more source
A Systematic Literature Review of Cyber Security Monitoring in Maritime
IEEE AccessIn recent years, many cyber incidents have occurred in the maritime sector, targeting the information technology (IT) and operational technology (OT) infrastructure.
Risto Vaarandi +4 more
doaj +1 more source
Key Prediction Security of Keyed Sponges
IACR Transactions on Symmetric Cryptology, 2018 The keyed sponge is a well-accepted method for message authentication. It processes data at a certain rate by sequential evaluation of an underlying permutation.
Bart Mennink
doaj +1 more source