Results 61 to 70 of about 842,343 (263)
The conundrum of stock versus bond prices
, 2003 In a general way, stock and bond prices do not display any significant correlation. Yet, if we concentrate our attention on specific episodes marked by a crash followed by a rebound, then we observe that stock prices have a strong connection with ...
Bertrand M Roehner +6 more
core +2 more sources
Silicon oxynitride based photonics [PDF]
, 2008 Silicon oxynitride is a very attractive material for integrated optics. Besides possessing excellent optical properties it can be deposited with refractive indices varying over a wide range by tuning the material composition. In this contribution we will
Driessen, A. +3 more
core +3 more sources
Smart Electrochromic Devices for Wearables
Advanced Materials Technologies, EarlyView.This article reviews the recent progress of smart electrochromic devices in the field of intelligent wearable devices. Serving as displays, dimmers, energy‐saving and energy storage devices, and temperature management components, electrochromic devices have broad prospects in flexible displays, human–computer interaction, and personalized ...
Mengjie Zhu +6 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti +6 more
wiley +1 more source
The R&D Drop in European Utilities. Should we care about it? [PDF]
By using accounting data from the largest utility companies of Europe, this note illustrates the recent R&D performance in energy and telecommunication.
Alessandro Sterlacchini
core
Advanced Materials Technologies, EarlyView.Fully printed bipolar organic thermoelectric generators are fabricated on flexible substrates and characterized entirely under ambient conditions. The devices exhibit Seebeck coefficients up to 30 µV K−1 and output powers up to 8.8 nW, with enhanced performance under bending.
Loup Chopplet +7 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.A full‐domain 3D digital twin of a standing surface acoustic wave (SSAW) device on 128° YX LiNbO3 is developed and experimentally validated. The predictive power of the model is confirmed by electrical characterisation and laser Doppler vibrometry measurements, which show excellent agreement with simulations.
Felice Alberto Sfregola +6 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.This study fabricates three types of hybrid knitted fabrics: AgNPs of varying sizes are synthesized on the fabric, MXene nanosheets are applied via spray coating, and alternating AgNPs/MXene bi‐layers are added. The effects of particle size, material type, and bi‐layer structure on EMI shielding (≈60 dB), as well as breathability, air permeability, and
Hamed Mohammadi Mofarah +5 more
wiley +1 more source
A Fair and Efficient Packet Scheduling Scheme for IEEE 802.16 Broadband Wireless Access Systems
, 2010 This paper proposes a fair and efficient QoS scheduling scheme for IEEE 802.16 BWA systems that satisfies both throughput and delay guarantee to various real and non-real time applications.
Chowdhury, Prasun, Misra, Iti Saha
core +2 more sources
Fiber Bragg Gratings with Micro‐Engineered Temperature Coefficients
Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.Fiber Bragg gratings (FBGs) are intrinsically responsive to temperature and strain simultaneously. In this research, low‐loss FBGs with micro‐engineered temperature coefficients are fabricated, utilizing refractive index liquid‐filled microchannels in the cladding.
Zipei Song +8 more
wiley +1 more source