Results 41 to 50 of about 175,549 (317)

Spacer‐Less Substrate‐Integrated Metasurface for Near‐Unity Terahertz Absorption

open access: yesAdvanced Optical Materials, EarlyView.
ABSTRACT Although conventional metal‐insulator‐metal (MIM) terahertz (THz) absorbers can provide near‐unity absorption, their multilayer stacks inevitably introduce additional thickness, mass, and residual stress, which limit their compatibility with THz thermal sensing platforms.
Zihao Zhao   +6 more
wiley   +1 more source

Effect of metabolite and temperature on artificial human sweat characteristics over a very wide frequency range (400 MHz–10.4 GHz) for wireless hydration diagnostic sensors

open access: yesResults in Engineering, 2023
Sweat is an important biofluid that is excreted by the human body. It contains physiological biomarkers that provide vital information on the general health condition of the body. As a result, analysis of electrolytes in this biofluid is gaining traction
Innocent D. Lubangakene   +3 more
doaj   +1 more source

Waveguide Geometry–Driven Trade‐Offs in Resonant Cavity Sensor Performance

open access: yesAdvanced Optical Materials, EarlyView.
Waveguide geometry governs the interplay between sensitivity, intrinsic Q‐factor, and wavelength noise in silicon nitride resonant sensors. Contrary to intuition, higher sensitivity does not ensure superior performance. Low‐noise, high‐Q ridge resonators achieve the lowest detection limits, revealing that detection is ultimately constrained by noise ...
Mohammad Talebi Khoshmehr   +6 more
wiley   +1 more source

New Media in Internal Communications

open access: yesAnadolu Üniversitesi Sosyal Bilimler Dergisi, 2019
Communication is a cyclic process that involves collecting and exchanging of the information within the boundaries of dialogue and mutual understanding. As a rapidly growing field in communication studies; internal communication is vital for organizations to build healthy and sustainable relationships with their publics.
openaire   +5 more sources

Bridging Boltzmann and Non‐Boltzmann Optical Thermometry Enabled by Multimodal Perovskite Nanocrystals

open access: yesAdvanced Optical Materials, EarlyView.
Multimodal perovskite nanocrystals enable optical thermometry across multiple excitation and emission regimes, spanning the UV–Vis–NIR spectral range. By combining upconversion, downshifting, and persistent luminescence, the platform bridges conventional Boltzmann and non‐Boltzmann thermometric approaches.
Adrian Drozdowski   +2 more
wiley   +1 more source

Six emerging trends in media and communications - occasional paper [PDF]

open access: yes, 2014
This paper examines six emerging trends in media and communications, which highlight that consumers are increasingly using personalised access pathways to communications and content services that cut across different networks, devices and services ...

core  

Neodymium‐Doped Nanocrystals for Sensing Cellular Temperature at the Nanoscale

open access: yesAdvanced Optical Materials, EarlyView.
Neodymium‐doped NaYF4 nanocrystals are engineered as bright, biocompatible nanothermometers for intracellular temperature mapping. Their ratiometric near‐infrared emission enables highly sensitive, nanoscale thermal readouts in living cells. Combined with gold nanostars for photothermal therapy, they reveal pronounced subcellular heating heterogeneity ...
Maria Bravo   +13 more
wiley   +1 more source

Color Center Formation in Silicon‐On‐Insulator for On‐Chip Photonic Integration

open access: yesAdvanced Optical Materials, EarlyView.
ABSTRACT Color centers in silicon have great potential as single photon sources for quantum technologies. Some of them – like the T center – also possess optically‐active spins that enable spin‐photon interfaces for generating entangled photons and multi‐spin registers. This paper explores the generation of several types of color centers in silicon for
Arnulf J. Snedker‐Nielsen   +15 more
wiley   +1 more source

Narratives on quantum technologies: a cross-domain analysis of media, business, and policy discourses

open access: yesData & Policy
Narratives shape public perceptions and policymaking around emerging technologies like quantum technologies (QTs), yet what narratives develop across different societal domains remains underexplored.
Viktor Suter   +3 more
doaj   +1 more source

Successive Iteration of Positive Solutions for Fourth-Order Two-Point Boundary Value Problems

open access: yesAbstract and Applied Analysis, 2013
We are concerned with a fourth-order two-point boundary value problem. We prove the existence of positive solutions and establish iterative schemes for approximating the solutions.
Yongping Sun, Xiaoping Zhang, Min Zhao
doaj   +1 more source

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