Results 21 to 30 of about 836,577 (265)

The Analysis of Technical Characteristics of Badminton for Sports With Neurorobotics Under Machine Learning

open access: yesIEEE Access, 2023
With the increase in public attention to sports and health, more people are keen to use badminton for fitness, but it is difficult to find professionals for guidance.
Fan Wu, Huan Chen
doaj   +1 more source

Cubature Kalman Filters Model Predictive Static Programming Guidance Method with Impact Time and Angle Constraints Considering Modeling Errors

open access: yesMathematics, 2023
This paper proposes a CKF-MPSP guidance method for hitting stationary targets with impact time and angle constraints for missiles in the presence of modeling errors.
Zihan Xie   +3 more
doaj   +1 more source

Multivariate Threshold Regression Models with Cure Rates: Identification and Estimation in the Presence of the Esscher Property

open access: yesStats, 2022
The first hitting time of a boundary or threshold by the sample path of a stochastic process is the central concept of threshold regression models for survival data analysis.
Mei-Ling Ting Lee, George A. Whitmore
doaj   +1 more source

Antagonistic One-To-N Stochastic Duel Game

open access: yesMathematics, 2020
This paper is dealing with a multiple person game model under the antagonistic duel type setup. The unique multiple person duel game with the one-shooting-to-kill-all condition is analytically solved and the explicit formulas are obtained to determine ...
Song-Kyoo (Amang) Kim
doaj   +1 more source

Are Hitting Formulas Hard for Resolution? [PDF]

open access: yesDiscrete Applied Mathematics, 2022
Hitting formulas, introduced by Iwama, are an unusual class of propositional CNF formulas. Not only is their satisfiability decidable in polynomial time, but even their models can be counted in closed form.
Tom'avs Peitl, Stefan Szeider
semanticscholar   +1 more source

A Nonlinear Prognostic Model Based on the Wiener Process with Three Sources of Uncertainty

open access: yesShock and Vibration, 2021
Estimation of the remaining useful life (RUL) is an important component of prognostics and health management (PHM). The accuracy of the RUL estimation for complex systems is mainly affected by three sources of uncertainty, i.e., the temporal uncertainty,
Huifang Niu   +4 more
doaj   +1 more source

On some dynamical features of the complete Moran model for neutral evolution in the presence of mutations [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
We present a version of the classical Moran model, in which mutations are taken into account; the possibility of mutations was introduced by Moran in his seminal paper, but it is more often overlooked in discussing the Moran model.
Giuseppe Gaeta
doaj   +1 more source

A Digital-Twin Framework for Predicting the Remaining Useful Life of Piezoelectric Vibration Sensors with Sensitivity Degradation Modeling

open access: yesSensors, 2023
Piezoelectric vibration sensors (PVSs) are widely applied to vibration detection in aerospace engines due to their small size, high sensitivity, and high-temperature resistance.
Chengcheng Fu, Cheng Gao, Weifang Zhang
doaj   +1 more source

Weapon Sets of the Kushulevsky III Burial Ground of the Pyanobor Archaeological Culture [PDF]

open access: yesГуманитарный вектор, 2021
One of the important directions in the study of military affairs of the Pyanobor culture is the study of weapon sets. A set of weapons means armaments in a specific closed complex.
Vsevolod I. Lyasovich
doaj   +1 more source

The R Package threg to Implement Threshold Regression Models

open access: yesJournal of Statistical Software, 2015
This paper introduces the R package threg, which implements the estimation procedure of a threshold regression model, which is based on the first-hitting-time of a boundary by the sample path of a Wiener diffusion process.
Tao Xiao   +3 more
doaj   +1 more source

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