Results 61 to 70 of about 243,457 (312)
Advanced Functional Materials, EarlyView.First vacuum formed spherical triboelectric converter for 3D‐omnidirectional ultrasonic energy receiving, with configurable DC or pulse outputs for versatile applications. ABSTRACT Ultrasound‐driven triboelectric nanogenerators (UD‐TENGs) have emerged as promising ultrasonic energy converters for underwater and biomedical applications.
Yanqin Huang +12 more
wiley +1 more source
An Entropy Measure of Non-Stationary Processes
Entropy, 2014 Shannon’s source entropy formula is not appropriate to measure the uncertainty of non-stationary processes. In this paper, we propose a new entropy measure for non-stationary processes, which is greater than or equal to Shannon’s source entropy.
Ling Feng Liu +3 more
doaj +1 more source
A class of stationary Markov processes
Applied Mathematics Letters, 2002 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
K. Jayakumar, R. N. Pillai
openaire +1 more source
Chiral Phase Change Nanomaterials
Advanced Functional Materials, EarlyView.This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow +11 more
wiley +1 more source
Sensors, 2018 A mechanical trigger inertial micro-switch with spring stationary electrode is proposed and fabricated by surface micromachining. The elastic contact process and stability performance are evaluated through experimental tests performed using a drop hammer.
Wenguo Chen +3 more
doaj +1 more source
Development of Bayesian Geostatistical Models with Applications in Malaria Epidemiology [PDF]
, 2008 methods enables model fit. A common assumption in geostatistical modeling of malaria data is the stationarity, that is the spatial correlation is a function of distance between locations and not of the locations themselves.
Gosoniu, Laura, Gosoniu, Laura
core +1 more source
Advanced Functional Materials, EarlyView.Cyclic unloading‐aging‐reloading micro‐tensile tests under various aging durations and temperatures, combined with comprehensive microstructural characterization reveal that the yield point phenomenon in Aluminum‐Carbon (Al‐C) thin films originates from Cottrell atmosphere formation.
Zion Lee +10 more
wiley +1 more source
Optimal approximation model of autocorrelation function of digital image
Tongxin xuebao, 2011 Non-stationary stochastic signal was divided into piecewise stationary stochastic signal,and reflecting the sig-nal’s characteristics by autocorrelation function of the piecewise stationary stochastic signal.Generally,the autocorrela-tion function was ...
CHENG Xiao-gang1 +4 more
doaj +2 more sources
Entropic Equilibria Selection of Stationary Extrema in Finite Populations
Entropy, 2018 We propose the entropy of random Markov trajectories originating and terminating at the same state as a measure of the stability of a state of a Markov process. These entropies can be computed in terms of the entropy rates and stationary distributions of
Marc Harper, Dashiell Fryer
doaj +1 more source
ROBUST ESTIMATION OF STATIONARY PROCESS
International Journal of Computing, 2014 The use of microprocessor measurement system gives the opportunity to improve the precision of the measurements. It is possible by realization of algorithms, taking in to account the changing conditions of measurement experiment. In the paper it is suggested an adaptive algorithm for calculation of the mathematical expectation MX in the conditions of ...
Nickolay Petrov, Tania Pehlivanova
openaire +2 more sources