Results 11 to 20 of about 5,202,663 (266)

Tuning C–C sp2/sp3 ratio of DLC films in FCVA system for biomedical application

open access: yesBioactive Materials, 2020
Diamond like carbon (DLC) films with different C–C sp2/sp3 ratios were prepared by tuning the N2 flow rate in a filtered cathodic vacuum arc (FCVA) system. The increase of N2 flow rate facilitated the increase of C–C sp2/sp3 ratio (1.09–2.66), the growth
Xi Rao   +7 more
doaj   +1 more source

Time Series Forecasting With Volatility Activation Function

open access: yesIEEE Access, 2022
Time series forecasting is the method of predicting future values of a model by reviewing its past data. Various models like traditional approaches, statistical methods, moving average, ARIMA, RNN’s, or XGBoost may also be applied.
Furkan Kayim, Atinc Yilmaz
doaj   +1 more source

Weighted Mean Inactivity Time Function with Applications

open access: yesMathematics, 2022
We consider an extension of the mean inactivity time based on a non-negative weight function. We show various properties of the new notion, and relate it to various functions of interest in reliability theory and information measures, such as the dynamic
Antonio Di Crescenzo, Abdolsaeed Toomaj
doaj   +1 more source

Compile-time function memoization [PDF]

open access: yesProceedings of the 26th International Conference on Compiler Construction, 2017
Memoization is the technique of saving the results of computations so that future executions can be omitted when the same inputs repeat. Recent work showed that memoization can be applied to dynamically linked pure functions using a load-time technique and results were encouraging for the demonstrated transcendental functions.
Suresh, Arjun   +2 more
openaire   +3 more sources

Construction of controllability function as time of motion

open access: yesVisnik Harkivsʹkogo Nacionalʹnogo Universitetu im. V.N. Karazina. Cepiâ Matematika, Prikladna Matematika i Mehanika, 2023
This article is devoted to the controllability function method in admissible synthesis problems for linear canonical systems. The work considers methods of constructing such control so that the controllability function is time of motion of an arbitrary ...
V. I. Korobov, T. V. Andriienko
doaj   +1 more source

Penalty function method for the minimal time crisis problem [PDF]

open access: yesESAIM: Proceedings and Surveys, 2021
In this note, we propose a new method to approximate the minimal time crisis problem using an auxiliary control and a penalty function, and show its convergence to a solution to the original problem.
Boumaza Kenza   +2 more
doaj   +1 more source

Maximum phonation time in the pulmonary function assessment

open access: yesRevista CEFAC, 2021
Purpose: to evaluate the reliability of the maximum phonation time (MPT) and Vital Capacity intra and inter-examiner, by means of the single-breath counting test (CT) and the sustained /a/ phoneme, and the slow vital capacity (SVC).
Edvania Gomes Henrique Moreno   +10 more
doaj   +2 more sources

Time Functions as Utilities [PDF]

open access: yesCommunications in Mathematical Physics, 2010
Every time function on spacetime gives a (continuous) total preordering of the spacetime events which respects the notion of causal precedence. The problem of the existence of a (semi-)time function on spacetime and the problem of recovering the causal structure starting from the set of time functions are studied.
openaire   +2 more sources

Radial Basis Function Nets for Time Series Prediction [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2009
This paper introduces a novel ensemble learning approach based on recurrent radial basis function networks (RRBFN) for time series prediction with the aim of increasing the prediction accuracy. Standing for the base learner in this ensemble, the adaptive
Abdelhamid Bouchachia
doaj   +1 more source

On time-free functions [PDF]

open access: yesTransactions of the American Mathematical Society, 1972
By regarding as equivalent any two real-valued functions of a real variable that can be obtained from each other by a monotone continuous transformation of the independent variable, time-free functions are defined.
openaire   +2 more sources

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