Results 201 to 210 of about 165,252 (290)

A Blockchain-Based Secure Data Transaction and Privacy Preservation Scheme in IoT System. [PDF]

Sensors (Basel)
Wu J, Bian Z, Gao H, Wang Y.
europepmc   +1 more source

Exploring portable NIR spectroscopy in transmittance and reflectance modes for the authentication of Brazilian coffees with geographical indications

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Geographical indications (GIs) certify the link between coffee origin and quality, enabling premium pricing and protecting producers. However, the high market value of GI coffees increases their vulnerability to fraud, underscoring the need for reliable and practical authentication methods.
Leticia Tessaro, Yhan da Silva Mutz, Mikaela Martins de Bem, Natália de Oliveira Souza, Cleiton Antônio Nunes   +4 more
wiley   +1 more source

Phase‐Retrieved High‐Throughput Multi‐Channel Simultaneous Surface Plasmon Resonance Detection

Laser &Photonics Reviews, EarlyView.
This work presents a new phase‐retrieval high‐throughput multi‐channel simultaneous SPR detection framework. By integrating an objective lens‐based coupling system with a rotation‐based ePIE (r‐ePIE) phase retrieval on the back focal planes, this framework significantly reduces the minimum required detection area to reveal localized information.
Mengqi Shen, Xiaoping Jiang, Shibiao Wei, Michael G. Somekh   +3 more
wiley   +1 more source

ChebIoD: a Chebyshev polynomial-based lightweight authentication scheme for internet of drones environments. [PDF]

Sci Rep
Al-Mekhlafi ZG, Altmemi JMH, Al-Shareeda MA, Al-Hchaimi AAJ, Homod RZ, Mohammed BA, Alshammari G, Al-Dhlan KA, Alrashdi R, Alkhabra YA.   +9 more
europepmc   +1 more source

Multiple orthogonal polynomial ensembles

, 2012
Multiple orthogonal polynomial (MOP) ensembles form a generalization of the orthogonalpolynomial (OP) ensembles appearing in random matrix theory. Of maininterest is the asymptotic behavior of MOP ensembles, i.e., the behavior as the numberof particles tends to infinity.We consider the subclass of Angelesco ensembles.
openaire   +1 more source

Laser Stabilized to a Fiber Interferometer With Close‐To‐Zero Temperature Sensitivity

Laser &Photonics Reviews, EarlyView.
A laser stabilized to a hollow‐core fibre interferometer is presented. The interferometer is designed to have near‐zero temperature phase‐sensitivity. Laser stabilized to this interferometer put in a non‐vacuum environment achieves ±550 kHz frequency variation over 100 h and an Allan deviation of 2 × 10−14τ, which is comparable to miniature ULE ...
Bo Shi, Irene Barbeito Edreira, Meng Ding, Zitong Feng, Win Indra, Francesco Poletti, Giuseppe Marra, Radan Slavík   +7 more
wiley   +1 more source

From shape to number: Shape-from-dots homogeneity boosts groupitizing enumeration. [PDF]

Psychon Bull Rev
Adriano A, Velde MV.
europepmc   +1 more source

General‐Purpose Hexagonal Programmable Photonic Integrated Circuit with a >30 GHz Free Spectral Range

Laser &Photonics Reviews, EarlyView.
A compact and low insertion loss programmable photonic circuit is demonstrated based on a 7‐cell hexagonal waveguide mesh with a large free spectral range (FSR) of 31 GHz for a 6‐gate ring resonator configuration. Vernier rings and a dual‐injected ring configuration are demonstrated on this circuit with a further improved FSR of 93 GHz.
Yu Zhang, Xiangfeng Chen, Lukas Van Iseghem, Iman Zand, Hasan Salmanian, Antonio Ribeiro, Wim Bogaerts   +6 more
wiley   +1 more source

The generic Markov cohomological Hall algebra is not spherically generated. [PDF]

R Soc Open Sci
Davison B.
europepmc   +1 more source

Machine Learning Prediction of Raster Angle Effects on Mechanical Properties of Extrusion‐Based Additively Manufactured Conductive Thermoplastic Polyurethane Composites

Macromolecular Materials and Engineering, EarlyView.
This study integrates machine learning (ML) and high‐fidelity experiments to model how raster angle influences the mechanical properties of fused filament fabricated conductive TPU composites. Using Poly6 and SVR models, the approach accurately predicts stiffness, strength, and ductility.
Imran Khan, Ans Al Rashid, Muammer Koç
wiley   +1 more source