Results 111 to 120 of about 51,902 (232)

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

High Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov, I. L. Muzyukin, I. V. Uimanov, D. L. Shmelev, S. A. Barengolts   +4 more
wiley   +1 more source

NuMagSANS: a GPU‐accelerated open‐source software package for the generic computation of nuclear and magnetic small‐angle neutron scattering observables of complex systems

Journal of Applied Crystallography, EarlyView.
NuMagSANS, a GPU‐accelerated software package for the computation of nuclear and magnetic small‐angle neutron scattering cross sections and correlation functions of complex systems, is presented.We present NuMagSANS, a GPU‐accelerated software package for calculating nuclear and magnetic small‐angle neutron scattering (SANS) cross sections and ...
Michael P. Adams, Andreas Michels
wiley   +1 more source

Altered visual cortex excitatory/inhibitory ratio following transient congenital visual deprivation in humans

eLife
Non-human animal models have indicated that the ratio of excitation to inhibition (E/I) in neural circuits is experience dependent, and changes across development. Here, we assessed 3T Magnetic Resonance Spectroscopy (MRS) and electroencephalography (EEG)
Rashi Pant, Kabilan Pitchaimuthu, José P Ossandón, Idris Shareef, Sunitha Lingareddy, Jürgen Finsterbusch, Ramesh Kekunnaya, Brigitte Röder   +7 more
doaj   +1 more source

Strategic Influencers and the Shaping of Beliefs

The RAND Journal of Economics, EarlyView.
ABSTRACT Influencers, from propagandists to sellers, expend vast resources targeting agents who amplify their message through word‐of‐mouth communication. While agents differ in network position, they also differ in their bias: Agents may naturally read articles with a particular slant or buy products from a certain seller.
Akhil Vohra
wiley   +1 more source

Considerations for the Design of Sinusoidal Slug Testing Methods

Groundwater, EarlyView.
Periodic hydraulic tests estimate aquifer properties using controlled groundwater‐level oscillations. Evaluating two sinusoidal slug‐test designs shows large motion errors when transfer‐link and flywheel ratios are high or variable. Rotating‐drive mechanisms are therefore suboptimal; stepper‐motor winches generate more accurate sinusoidal motion ...
Chris Turnadge, Lawrence Burk, Eddie W. Banks   +2 more
wiley   +1 more source

Miners' Reward Elasticity and Stability of Competing Proof‐of‐Work Cryptocurrencies

International Economic Review, EarlyView.
ABSTRACT Proof‐of‐Work cryptocurrencies employ miners to sustain the system through algorithmic reward adjustments. We develop a stochastic model of the multicurrency mining and identify conditions for stable transaction speeds. Bitcoin's algorithm requires hash supply elasticity <$<$1 for stability, while ASERT remains stable for any elasticity and ...
Kohei Kawaguchi, Junpei Komiyama, Shunya Noda   +2 more
wiley   +1 more source

Social Threat as Motivation for Phonetic Divergence: Evidence From Nonbinary Participants

Journal of Sociolinguistics, EarlyView.
ABSTRACT This paper investigates whether nonbinary speakers’ imitation of extended voice onset time (VOT) in word‐initial English /p, t, k/ is impacted by whether they believe they are listening to a nonbinary or binary model speaker. Forty‐five nonbinary American English speakers participated in an online VOT shadowing task, and the results find that ...
Jack Rechsteiner
wiley   +1 more source

Accelerated algorithm for calculating spectra of aperiodic gratings

Компьютерная оптика
To compute the spectrum of aperiodic Bragg gratings, we address a direct scattering problem for the Helmholtz equation. Numerically, this problem necessitates the calculation of transfer matrix products, which involves multiple multiplications of matrix ...
L.L. Frumin, A.E. Chernyavsky
doaj   +1 more source

Sleep Deprivation in Mice: Looking Beyond the Slow Wave Rebound

Journal of Sleep Research, EarlyView.
ABSTRACT Sleep is a fundamental process supporting the dynamic regulation of neural function. Emerging methods have proposed that the aperiodic components of brain signals (such as the spectral slope, spectral intercept, and spectral knee), in addition to entropy‐based measures, offer robust empirical markers of neural states.
Tárek Zoltán Magyar, Orsolya Szalárdy, Róbert Bódizs   +2 more
wiley   +1 more source

Markov Determinantal Point Process for Dynamic Random Sets

Journal of Time Series Analysis, EarlyView.
ABSTRACT The Law of Determinantal Point Process (LDPP) is a flexible parametric family of distributions over random sets defined on a finite state space, or equivalently over multivariate binary variables. The aim of this paper is to introduce Markov processes of random sets within the LDPP framework. We show that, when the pairwise distribution of two
Christian Gouriéroux, Yang Lu
wiley   +1 more source