Results 81 to 90 of about 19,413 (252)
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Hydraulic manipulators exhibit strong coupling, pronounced nonlinearities, and significant modeling uncertainties, which hinder high‐precision motion control. This paper proposes a finite‐time disturbance observer–based nonlinear robust adaptive control (RAC‐FTDO) framework enhanced by a physically consistent dynamic parameter identification ...
Tianyu Gao +3 more
wiley +1 more source
Skew Polynomial Rings with Binomial Relations
Journal of Algebra, 1996 The paper is concerned with algebras \(A\) over a field \(K\) defined by generators \(x_1,\dots,x_n\) subject to relations of the form \(x_jx_i=c_{ij}x_kx_l\), \(1\leq ...
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Polymer Composites, EarlyView.Acquisition, filtering and modeling by genetic programming (tree pattern) of the acoustic signal for fiber‐filled composites. ABSTRACT This study experimentally investigated the discrete phase contributions of fibers and entrapped air on the attenuation spectrum of a fiber‐filled thermoplastic composite and derives a mathematical expression for sound ...
Austin D. Bedrosian +3 more
wiley +1 more source
Progress in Photovoltaics: Research and Applications, EarlyView.This study introduces a self‐supervised machine learning approach integrating physics‐based principles to estimate open‐circuit voltage (voc$$ {v}_{oc} $$) degradation in photovoltaic systems using SCADA data. By combining clustering and regression algorithms, our method detects performance deviations without labelled datasets.
Sandra Riaño +4 more
wiley +1 more source
Sustainable Development, EarlyView.ABSTRACT Transition processes towards a sustainable future benefit from historic perspectives, since feasible changes of socio‐technological conditions and processes depend on a holistic assessment of how actors are embedded in existing institutions, routines, and structures. Building on the Income–Population–Affluence–Technology equation and utilizing
Jessica Kluge, Marcus Wagner
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Wildlife Biology, EarlyView.We compared population trends for rock ptarmigan Lagopus muta densities (2003‒2019) derived from walked transects and driven road transects in Mosfellsheiði and Slétta in southwest and northeast Iceland, respectively. The walked transects were laid out according to a random rule.
Matteo Ferrarini, Ólafur K. Nielsen
wiley +1 more source
Australian Journal of Agricultural and Resource Economics, EarlyView.ABSTRACT This paper investigates the effects of two greenhouse gas (GHG) mitigation practices—minimum tillage and mid‐season drainage—on rice farmers' farm performance (e.g., crop yield and risk) and economic outcomes (e.g., income and vulnerability).
Hongyun Zheng, Wanglin Ma
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US State Policy Contexts and Mental Health Among Working‐Age Adults
The Milbank Quarterly, EarlyView.Policy Points States’ overarching policy contexts are a meaningful yet overlooked predictor of adults’ mental health, with more conservative contexts associated with worse mental health outcomes over a 30‐year period. Counterfactual analyses suggest that widespread policy shifts could meaningfully alter the national prevalence of mental distress ...
ILIYA GUTIN +4 more
wiley +1 more source
SKEW POLYNOMIAL RINGS SATISFYING $R$-BND PROPERTY
Tamkang Journal of Mathematics, 1992 In this paper we show that, a prime right Noetherian ring $A$ satisfies $T(A) = n <\infty$ iff $A[x, \sigma]$ satisfies $r$-Bnd $(n + 1)$.
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