Results 111 to 120 of about 734,125 (345)
Advanced Functional Materials, EarlyView.A flexible micro‐electrocorticography array with PEDOT:SS electrodes is shown to be compatible with ultra‐high magnetic field MRI up to 9.4 T. Multimodal brain monitoring is demonstrated by performing simultaneous blood oxygen level‐dependent functional MRI in parallel with electrophysiology.
Sagnik Middya +7 more
wiley +1 more source
Enhancing signal and signal-to-noise ratio with post-selection and nonclassical states
Results in Physics, 2021 We propose a weak measurement scheme with post-selection based on the cross-Kerr interaction between two optical fields. We demonstrate that our scheme can measure smaller physical effects and obtain a larger signal-to-noise ratio compared to the weak ...
Meng-yao Guo +3 more
doaj
International Journal of Technology, 2015 Beam wander and spatial noise that are modulated on optical propagation produce noise modulation in the signal spectral before being received by a Photodetector (PD). In order to suppress noise modulation in the signal spectral, we present an Optical
Ucuk Darusalam +2 more
doaj +1 more source
Microwave-to-optical frequency conversion based on the Lamb shift [PDF]
arXiv, 2018 We consider the microwave-to-optical frequency conversion based on the Lamb shift, fine structure and forbidden transitions. The theory of such a conversion is developed and the efficiency of the microwave-to-optical frequency conversion is calculated. We show that the ratio of the peak power of the induced optical emission to the power of the incident
arxiv
Laser beacon studies final summary report, 30 jun. - 31 oct. 1961 [PDF]
Laser beacon for daylight optical tracking - components description, signal to noise ratio, and signal ...
Fletcher, P. C.
core +1 more source
Wearable Haptic Feedback Interfaces for Augmenting Human Touch
Advanced Functional Materials, EarlyView.The wearable haptic feedback interfaces enhance user experience in gaming, social media, biomedical instrumentation, and robotics by generating tactile sensations. This review discusses and categorizes current haptic feedback interfaces into force, thermal, and electrotactile stimulation‐based haptic feedback interfaces, elucidating their current ...
Shubham Patel +3 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Carbon nanomembranes with ultra‐thin Al2O3 functionalization are less than 15 nm thin and exhibit outstanding permeation performance with a water vapor/nitrogen selectivity higher than 1 × 104, twice that of pristine CNMs, and an exceptionally high water vapor permeation rate for potential applications in air dehumidification.
Jan Biedinger +10 more
wiley +1 more source
Denoising Algorithm for Φ-OTDR signals based on ICEEMDAN and wavelet thresholding [PDF]
Zhihui kongzhi yu fangzhenThis paper proposes an improved adaptive noise-aided complete ensemble empirical mode decomposition (ICEEMDAN) method to address the issue of low signal-to-noise ratio in distributed optical fiber acoustic sensing systems.
SHI Xuewei, XU Dalin, LIU Zhicheng
doaj +1 more source
Coded scanning of optical images [PDF]
Coded mask for improved signal to noise ratio in scanning optical ...
Helm, H. A.
core +1 more source
Ultrasound-modulated optical tomography using four-wave mixing in photorefractive polymers [PDF]
, 2008 Ultrasound-modulated optical tomography uses a well focused ultrasound beam to modulate diffuse light inside soft biological tissues. This modality combines the advantages of ultrasound resolution with optical contrast.
Hemmer, Philip +5 more
core