Results 121 to 130 of about 279,237 (328)

THz‐Driven Coherent Phonon Fingerprints of Hidden Symmetry Breaking in 2D Layered Hybrid Perovskites

open access: yesAdvanced Materials, EarlyView.
Intense THz pulses are employed to drive coherent phonons in 2D Ruddlesden‐Popper hybrid metal‐halide perovskites (HOIPs) from the (PEA)2(MA)n‐1PbnI3n+1 family, revealing mode‐selective spectroscopic signatures of inversion symmetry breaking in those nominally centrosymmetric materials. These findings provide a handle to decode nonlinear phonon driving
Joanna M. Urban   +14 more
wiley   +1 more source

Bursting Behavior in the System of Coupled Oscillators with Delay and its Statistical Analysis

open access: yesМоделирование и анализ информационных систем, 2015
The statistical analysis of random quantities derived from the dynamics of interaction of a pair of neuron-type oscillators are presented. It is shown that computation of some statistical characteristics of the process allows, with enough precision, to ...
S. D. Glyzin, E. A. Marushkina
doaj   +1 more source

Frequency Switching Neuristor for Realizing Intrinsic Plasticity and Enabling Robust Neuromorphic Computing

open access: yesAdvanced Materials, EarlyView.
A frequency switching (FS) neuristor is proposed, comprising a Mott memristor and a valence change mechanism (VCM) memristor. The FS neuristor exhibits a multi‐level frequency–voltage (f–V) characteristics, enabling the implementation of neuronal intrinsic plasticity transfer functions.
Woojoon Park   +12 more
wiley   +1 more source

Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar

open access: yesIET Radar, Sonar & Navigation
A fundamental challenge in the practical implementation of multistatic radar systems (MSRS) is the requirement for precise time and frequency synchronisation between the spatially separated radar nodes.
Piers J. Beasley   +3 more
doaj   +1 more source

Unperceivable Designs of Wearable Electronics

open access: yesAdvanced Materials, EarlyView.
Unperceivable wearable technologies seamlessly integrate into everyone's daily life, for healthcare and Internet‐of‐Things applications. By remaining completely unnoticed both visually and tactilely, by the user and others, they ensure medical privacy and allow natural social interactions.
Yijun Liu   +2 more
wiley   +1 more source

Probing and Tuning Strain‐Localized Exciton Emission in 2D Material Bubbles at Room Temperature

open access: yesAdvanced Materials, EarlyView.
This work provides an approach: 1) to directly visualize the associated exciton properties, revealing an intrinsic emission wavelength shift, and 2) actively modify local strain, enabling further exciton emission tuning. These findings provide direct insights into the strain‐localized emission dynamics in bubbles and establish a robust framework for ...
Junze Zhou   +6 more
wiley   +1 more source

A Review of Interface Electronic Systems for AT-cut Quartz Crystal Microbalance Applications in Liquids

open access: yesSensors, 2008
From the first applications of AT-cut quartz crystals as sensors in solutionsmore than 20 years ago, the so-called quartz crystal microbalance (QCM) sensor isbecoming into a good alternative analytical method in a great deal of applications such ...
Antonio Arnau
doaj  

Distinguishable IQ Feature Representation for Domain-Adaptation Learning of WiFi Device Fingerprints

open access: yesIEEE Transactions on Machine Learning in Communications and Networking
Deep learning (DL)-based RF fingerprinting (RFFP) technology has emerged as a powerful physical-layer security mechanism, enabling device identification and authentication based on unique device-specific signatures that can be extracted from the received
Abdurrahman Elmaghbub, Bechir Hamdaoui
doaj   +1 more source

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