Results 111 to 120 of about 67,929 (263)

Phase Drifts and Signal Dispersion in Coaxial Cables

IEEE Access
Phase reference distribution is a critical challenge in modern linear particle accelerators, such as European Spallation Source (ESS), European X-ray Free Electron Laser (E-XFEL), or Proton Improvement Plan II (PIP-II).
Andzej Serlat, Maciej Grzegrzolka, Maciej Urbanski, Bartosz Gasowski, Krzysztof Czuba, Dominik Sikora, Radoslaw Papis, Pawel Jatczak, Igor Rutkowski, Jeremiah Holzbauer, Nathan Eddy   +10 more
doaj   +1 more source

Group-delay measurement of frequency-converting devices using a comb generator

, 2010
We propose a new method for the measurement of (group) delay from the radio-frequency (RF) input to the intermediate-frequency (IF) output of a mixer or a receiver.
Scott, Jonathan B., Hoy, M.
core   +1 more source

A Molecular Shielding Strategy to Develop Low Protein Binding, Renal Clearable Pan‐Cancer Near‐Infrared Probes

Advanced Functional Materials, EarlyView.
A molecular shielding strategy to convert “protein‐sticky” and “non‐tumor specific” clinical ICG dye, into a “low protein binding” and “tumor‐targeting” dye with prolonged blood circulation and renal clearance is described. These shielded ICGs demonstrate strong tumor accumulation and optimal tissue clearance, resulting in high tumor‐to‐background ...
Li Xiang, Kailin Mooney, Mingchong Dai, Morgan R. Stewart, Samantha Holland, Michael I. Henderson, Samuel Drennan, Ramon F. Barajas Jr., Jared M. Fischer, Adem Yildirim   +9 more
wiley   +1 more source

Power Consumption and Reduction of High-Power Amplifier in 5G NR Downlink

IEEE Access
This article presents a method for estimating the power consumption of radio frequency (RF) power amplifiers (PAs) within the 5G new radio (NR) downlink (from the base station to user equipment), particularly in the absence of user data.
Yuki Takagi, Takashi Hirakawa, Mitsukuni Konishi, Yoshichika Ohta   +3 more
doaj   +1 more source

RF-GML: Reference-Free Generative Machine Listener

This paper introduces a novel reference-free (RF) audio quality metric called the RF-Generative Machine Listener (RF-GML), designed to evaluate coded mono, stereo, and binaural audio at a 48 kHz sample rate.
Biswas, Arijit, Jiang, Guanxin
core  

Feasibility of simultaneous intracranial EEG-fMRI in humans: a safety study

, 2010
In epilepsy patients who have electrodes implanted in their brains as part of their pre-surgical assessment, simultaneous intracranial EEG and fMRI (icEEG-fMRI) may provide important localising information and improve understanding of the underlying ...
Lemieux, L., Thornton, J.S., Carmichael, D.W., Rodionov, R., McEvoy, A.W., Thornton, R., Ordidge, R.J., Allen, P.J.   +7 more
core  

CMOS Signal Synthesizers for Emerging RF-to-Optical Applications

, 2018
The need for clean and powerful signal generation is ubiquitous, with applications spanning the spectrum from RF to mm-Wave, to into and beyond the terahertz-gap.
Sharma, Jahnavi
core   +1 more source

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

Advanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk, Yihao Yuan, Augustin Caillas, Amel Saidoun, Roméo Bonnet, Pascal Filloux, Emmanuel Lhuillier, Aloyse Degiron   +7 more
wiley   +1 more source

Laser-to-RF phase detection with femtosecond precision for remote reference phase stabilization in particle accelerators

, 2017
The invention of a femtosecond stable Laser-to-RF phase detector allows to measure with femtosecond precision the relative phase between a phase stable optical reference and an RF signal. Thereby one can stabilize RF reference signals in modern FELs on a
Lamb, Thorsten
core   +1 more source

Oxidized MoS2‐Based Multifunctional Memristive Hardware for Energy‐Efficient mmWave Signal Processing and In‐Memory Matrix Multiplication

Advanced Functional Materials, EarlyView.
Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son, Changwoo Pyo, Sungmoon Park, Yoongi Cho, Seungchan Lee, Myungsoo Kim   +5 more
wiley   +1 more source