Results 101 to 110 of about 203,974 (250)

STATISTICAL SYNTHESIS OF FORECAST CHARACTERISTICS OF COMPLEX TECHNICAL SYSTEM BY TIME SERIES

open access: yesНаучный вестник МГТУ ГА, 2016
The article analyses the problem of building a medium-term forecast of the recovery trend in the average. We present a method of recovery trend in the form of a polynomial whose coefficients are determined by the inverse functions which are approximated ...
N. A. Severcev   +2 more
doaj  

A new time‐stepping strategy and boundary treatment to improve recent 2D traffic model

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 1, January 2026.
Abstract We show how a recently published 2D model for traffic flow can be further improved. Besides other improvements and simplifications, we present not only a method to compute the necessary time step restrictions, but also a subcycling for the inflow and outflow.
Friedemann Kemm
wiley   +1 more source

Maneuvering Star-Convex Extended Target Tracking Based on Modified Expected- Mode Augmentation Algorithm

open access: yesJournal of Aerospace Technology and Management, 2023
In utilizing a variable-structure multiple-model (VSMM) algorithm for kinematic state estimation, the core step is the model set design. This study aims to refine the existing expected-mode augmentation (EMA) algorithm, a method of model set design.
Jinjin Zhang, Lifan Sun, Dan Gao
doaj  

Calculation Method for Magnetic Saturation Current of Shunt Reactors Under Oscillation in Renewable Energy Power Systems

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
The paper proposes a piecewise analytical method for calculating the winding current and the neutral reactor current under oscillatory conditions in renewable energy power systems. The method is based on the operational state of the core magnetic circuit, where the nonlinear magnetisation curve is approximated by piecewise linear segments with the ...
Botong Li   +8 more
wiley   +1 more source

Advances in the Kinematics of Hexapod Robots: An Innovative Approach to Inverse Kinematics and Omnidirectional Movement

open access: yesApplied Sciences
Hexapod robots have gained significant attention due to their potential applications in complex terrains and dynamic environments. However, traditional inverse kinematics approaches often face challenges in meeting the precision required for adaptive ...
Jorge A. Lizarraga   +4 more
doaj   +1 more source

The Logistic Limiting Loop Hysteresis Model

open access: yesIET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.
This paper presents the L3P (logistic limiting loop proximity) model, which integrates the logistic function into the traditional L2P framework to represent hysteresis curves shifted from the central region. The model effectively captures logistic‐like behavior, a common dynamic in natural systems.
Moises A. P. Borges   +3 more
wiley   +1 more source

PLETHORAs shape Arabidopsis phyllotaxis through modulation of patterning robustness and accelerated inflorescence development

open access: yesNew Phytologist, Volume 249, Issue 1, Page 495-511, January 2026.
Summary Phyllotaxis is the arrangement of lateral organs on a stem axis, which in Arabidopsis follows a spiral pattern. We previously described that loss of three PLETHORA (PLT) transcription factors shifts the phyllotactic spiral to novel metastable patterns, but the mechanism behind these shifts remained unclear.
Merijn Kerstens   +4 more
wiley   +1 more source

On the Generalized $ \overline{\theta({\tt{t}})} $-Fibonacci sequences and its bifurcation analysis

open access: yesAIMS Mathematics
This paper introduces a general nabla operator of order two that includes coefficients of various trigonometric functions. We also introduce its inverse, which leads us to derive the second-order $ \overline{\theta({\tt{t}})} $-Fibonacci polynomial ...
Rajiniganth Pandurangan   +3 more
doaj   +1 more source

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