Results 121 to 130 of about 1,922,795 (290)

Unraveling Novel Wave Structures in Variable-Coefficient Higher-Order Coupled Nonlinear Schrödinger Models with β-Derivative

open access: yesFractal and Fractional
This study investigates the dynamics of optical solitons for the variable-coefficient coupled higher-order nonlinear Schrödinger equation (VCHNLSE) enriched with β-derivatives.
Wafaa B. Rabie   +3 more
doaj   +1 more source

Belief and the beast: Religion and attitudes towards tigers in Central India

open access: yesPeople and Nature, EarlyView.
Abstract Human perceptions of wildlife are critical to shaping conservation outcomes, particularly in landscapes where people coexist with large carnivores. Religion, a deeply rooted sociocultural force, remains underexplored in the context of human–wildlife conflict.
Sathvika Krishnan   +4 more
wiley   +1 more source

Rational Approximation and Coefficient Recovery

open access: yes
Thesis (Master's)--University of Washington, 2025We present a new framework for recovering Chebyshev coefficients of non-periodic functions using rational approximation.
Dou, ShiLin
core  

Analysis of the fractional scattering contribution in the forward peak for multicomponent systems

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Derivation and justification of mixing rules for multicomponent systems. A novel formulation of the delta‐Eddington scaling rule. Analytical guidance for comparing radiative transfer results. Abstract The widely used δ‐Eddington approximation improves the accuracy of radiative transfer calculations by representing the fraction of scattering into the ...
Jiangnan Li, Yue Cai
wiley   +1 more source

Modeling rainfall drop size distribution moments using an S‐band polarimetric radar in complex terrain

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Using S‐band dual‐polarization radar and disdrometers during PRECIP 2022 in Taiwan, we analyze a Mei‐Yu frontal event with widespread stratiform rain and embedded convection. Multiple disdrometers are used to create a novel drop size distribution model for S‐band radars resolving both the drizzle and precipitation modes. The model reveals both inferred
Ian C. Cornejo   +3 more
wiley   +1 more source

Validation of Neural Network Controllers for Uncertain Systems Using the Keep‐Close Approach: Robustness Analysis and Safety Verification

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT The safety verification of neural network (NN) controllers operating in uncertain environments characterized by unmodeled dynamics, nonlinearities, and time delays remains a fundamental challenge in robust control analysis. This article introduces a novel method, termed Keep‐Close, for analyzing the performance and robustness of uncertain ...
Abdelhafid Zenati, Nabil Aouf
wiley   +1 more source

Prediction and Mapping of Soil Total Nitrogen Using GF-5 Image Based on Machine Learning Optimization Modeling

open access: yes智慧农业
[Objective]Nitrogen in soil is an absolutely crucial element for plant growth. Insufficient nitrogen supply can severely affect crop yield and quality, while excessive use of nitrogen fertilizers can lead to significant environmental issues such as water
LIU Liqi, WEI Guangyuan, ZHOU Ping
doaj   +1 more source

Eventually rational and m-sparse points of linear ordinary differential operators with polynomial coefficients

open access: yesDiscrete Mathematics, 2000
Linear homogeneous ordinary differential equations with polynomial coefficients are considered to obtain some properties for the coefficients of power series solutions. The basic aim of the author here is to find all points \({\mathfrak a}\) (ordinary or singular) and all formal power series solutions \(\Sigma c_n(x- {\mathfrak a})^n\) to the given ...
openaire   +1 more source

Tensor‐Based Reduction of Linear Parameter‐Varying State‐Space Models

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT The linear parameter‐varying (LPV) framework is a powerful tool for controlling nonlinear (NL) and complex systems, but the conversion of NL models into LPV forms often results in high‐dimensional and overly conservative LPV models. To be able to apply control strategies, there is often a need for model reduction in order to reduce ...
Bogoljub Terzin   +4 more
wiley   +1 more source

Selection of spectral indices and comparison of estimation models for soil total nitrogen content in honey pomelo orchard

open access: yesGuoshu xuebao
【Objectives】Nitrogen is an essential nutrient for the growth of honey pomelo trees, and it plays an irreplaceable role in regulating cellular metabolism, improving fruit quality and increasing yield. Currently, in the monitoring of soil nitrogen in honey
Li Fangliang, Kong Qingbo, Zhang Qing
doaj   +1 more source

Home - About - Disclaimer - Privacy