Results 41 to 50 of about 430,069 (325)

SEMG-based fighter pilot muscle fatigue analysis and operation performance research

open access: yesMedicine in Novel Technology and Devices, 2022
Fatigue has a tremendously adverse impact on pilot performance. This study aims to explore the Biceps Brachii (BB), Rectus Femoris (RF), Flexor Carpi Radialis (FCR), and Tibialis Anterior (TA) activities of fighter pilots in the early and late combat ...
Biyun Zhou   +5 more
doaj   +1 more source

Hitting Time Theorems for Random Matrices [PDF]

open access: yesCombinatorics, Probability and Computing, 2014
Starting from ann-by-nmatrix of zeros, choose uniformly random zero entries and change them to ones, one at a time, until the matrix becomes invertible. We show that with probability tending to one asn→ ∞, this occurs at the very moment the last zero row or zero column disappears.
Addario-Berry, Louigi, Eslava, Laura
openaire   +3 more sources

Weak Horseshoe with Bounded-Gap-Hitting Times [PDF]

open access: yesCommunications in Mathematics and Statistics, 2020
In this paper, we consider weak horseshoe with bounded-gap-hitting times. For a flow $(M, )$, it is shown that if the time one map $(M, _1)$ has weak horseshoe with bounded-gap-hitting times, so is $(M, _ )$ for all $ \neq 0$. In addition, we prove that for an affine homeomorphsim of a compact metric abelian group, positive topological entropy is ...
Xu, Leiye, Zheng, Junren
openaire   +3 more sources

Hitting time for quantum walks on the hypercube

open access: yes, 2005
Hitting times for discrete quantum walks on graphs give an average time before the walk reaches an ending condition. To be analogous to the hitting time for a classical walk, the quantum hitting time must involve repeated measurements as well as unitary ...
A. Ambainis   +8 more
core   +1 more source

Subdiffusive option price model with Inverse Gaussian subordinator

open access: yesModern Stochastics: Theory and Applications
The paper focuses on the option price subdiffusive model under the unusual behavior of the market, when the price may not be changed for some time, which is a quite common situation in modern illiquid financial markets or during global crises.
Nataliya Shchestyuk, Sergii Tyshchenko
doaj   +1 more source

Precise timing when hitting falling balls [PDF]

open access: yesFrontiers in Human Neuroscience, 2014
People are extremely good at hitting falling balls with a baseball bat. Despite the ball's constant acceleration, they have been reported to time hits with a standard deviation of only about 7 ms. To examine how people achieve such precision, we compared performance when there were no added restrictions, with performance when looking with one eye, when
Brenner, Eli   +2 more
openaire   +3 more sources

Hitting time for the continuous quantum walk

open access: yes, 2008
We define the hitting (or absorbing) time for the case of continuous quantum walks by measuring the walk at random times, according to a Poisson process with measurement rate $\lambda$.
A. Guichardet   +12 more
core   +1 more source

First passage and first hitting times of Lévy flights and Lévy walks

open access: yesNew Journal of Physics, 2019
For both Lévy flight and Lévy walk search processes we analyse the full distribution of first-passage and first-hitting (or first-arrival) times. These are, respectively, the times when the particle moves across a point at some given distance from its ...
Vladimir V Palyulin   +6 more
doaj   +1 more source

Stressful Events Reported by Childhood Cancer Survivors and Community Controls From the St. Jude Lifetime (SJLIFE) Cohort: A Mixed Method Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Characterizing stressful events reported by childhood cancer survivors experienced throughout the lifespan may help improve trauma‐informed care relevant to the survivor experience. Methods Participants included 2552 survivors (54% female; 34 years of age) and 469 community controls (62% female; 33 years of age) from the St.
Megan E. Ware   +13 more
wiley   +1 more source

Incorporating Time Delays in Process Hitting Framework for Dynamical Modeling of Large Biological Regulatory Networks

open access: yesFrontiers in Physiology, 2019
Modeling and simulation of molecular systems helps in understanding the behavioral mechanism of biological regulation. Time delays in production and degradation of expressions are important parameters in biological regulation.
Iftikhar Ali Sheikh   +4 more
doaj   +1 more source

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