Results 61 to 70 of about 18,411,452 (302)

Resonantly enhanced second- and third-harmonic generation in dielectric nonlinear metasurfaces

Opto-Electronic Advances
Nonlinear dielectric metasurfaces provide a promising approach to control and manipulate frequency conversion optical processes at the nanoscale, thus facilitating both advances in fundamental research and the development of new practical applications in
Ji Tong Wang, Pavel Tonkaev, Kirill Koshelev, Fangxing Lai, Sergey Kruk, Qinghai Song, Yuri Kivshar, Nicolae C. Panoiu   +7 more
doaj   +1 more source

Stabilisation strategy based on feedback linearisation for DC microgrid with multi-converter

The Journal of Engineering, 2019
Power electronic converters have been widely used in power system and the stability issues of DC microgrid with converters will be discussed in this study. Firstly, an equivalent circuit and the corresponding state space model for DC microgrid with DC–DC
Xuanying Shao, Jian Hu, Zhongtian Zhao
doaj   +1 more source

A Robust State Estimator for T-S Fuzzy System

IEEE Access, 2020
In this paper, a robust filter is derived to estimate the state of a nonlinear system which is described by T-S fuzzy model. Firstly, this paper studies a robust state estimation algorithm based on the relationship between Kalman filter and regularized ...
Ziqiang Li, Jing Wang, Huabo Liu
doaj   +1 more source

Evaluation of Dried Plasma Spot‐Based Quantification of Glial Fibrillary Acidic Protein as a Disease‐Associated Biomarker in Neuromyelitis Optica Spectrum Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate the diagnostic accuracy of glial fibrillary acidic protein (GFAP) measured in dried plasma spots versus conventional plasma‐ and serum‐GFAP testing for assessment of disease severity in aquaporin‐4 immunoglobulin G–positive neuromyelitis optica spectrum disorder (AQP4‐IgG+ NMOSD).
Felix Wohlrab, Evelyn Alvarez, Roua Hamdi, Bingqing Zhang, Hayeun Ji, Niyati Jhaveri, Patrick Schindler, Pedro Sanchez, Pia S. Sperber, Tanja Schmitz‐Hübsch, Frederike C. Oertel, Nisa Vorasoot, Najib Kissani, Falko Böhringer, Jens Kuhle, Anne‐Katrin Pröbstel, Xiao‐Jun Ma, Péter Körtvelyessy, Patrick Waters, Friedemann Paul   +19 more
wiley   +1 more source

Systems of nonlinear wave equations with nonlinear viscosity [PDF]

Pacific Journal of Mathematics, 1988
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Friedman, Avner, Nečas, Jindřich
openaire   +2 more sources

Study of Super-Twisting sliding mode control for U model based nonlinear system

Journal of Hebei University of Science and Technology, 2016
The Super-Twisting control algorithm is adopted to analyze the U model based nonlinear control system in order to solve the controller design problems of non-affine nonlinear systems.
Jianhua ZHANG, Yang LI, Xueli WU, Jianan HUO, Shenyang ZHUANG   +4 more
doaj   +1 more source

Utility of the APE2 Score as a Diagnostic Tool for Autoimmune Encephalitis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To retrospectively evaluate the diagnostic performance of the Antibody Prevalence in Epilepsy and Encephalopathy (APE2) score relative to clinician‐adjudicated autoimmune encephalitis (AE) and the Graus criteria in a tertiary neuroimmunology referral cohort, including antibody‐negative AE.
Bijoya Basu, Sophia F. Damman, Samhitha M. Rai, Hesham Abboud   +3 more
wiley   +1 more source

Deformations and Nonlinear Systems

, 1996
The q-deformation of harmonic oscillators is shown to lead to q-nonlinear vibrations. The examples of q-nonlinearized wave equation and Schrödinger equation are considered. The procedure is generalized to broader class of nonlinearities related to other types of deformations.
Man'ko, V. I., Marmo, G., Zaccaria, F.
openaire   +3 more sources

Power control of hybrid grid-connected renewable energy system using machine learning

Energy Reports
This article addresses the crucial challenge of maintaining a reliable power supply in integrated electric systems that combine solar power and energy storage.
M. Karthikeyan, D. Manimegalai, karthikeyan RajaGopal   +2 more
doaj   +1 more source

Clinical Impact of MGMT Promoter Methylation in IDH‐Mutant Gliomas: Influence of Threshold Selection and Clinical Confounding

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background The clinical relevance of MGMT promoter methylation in IDH‐mutant gliomas remains controversial in the era of molecular classification. We aimed to systematically evaluate its clinical relevance by integrating quantitative assessment, cutoff exploration, and adjustment for clinical confounding.
Haihui Jiang, Linxi Cao, Xiaodong Chen, Siqi Tong, Qinghui Zhu, Jun Yang, Song Lin, Yong Cui   +7 more
wiley   +1 more source