Results 41 to 50 of about 2,690,813 (243)

Generalizing Averaging Techniques for Approximating Fractional Differential Equations With Caputo Derivative

Journal of Applied Mathematics
This work investigates the concept of numerically approximating fractional differential equations (FDEs) by using function average in an interval. First, the equivalent integral equation is obtained.
Chinedu Nwaigwe, Abdon Atangana
doaj   +1 more source

Neural Network-Based Stator Current Control for Rated Power Regulation of Permanent Magnet Synchronous Generator Wind Turbines with Differential Evolution Pitch Optimization [PDF]

Problems of the Regional Energetics
The main objective of this study is to achieve precise regulation of the Machine Side Converter (MSC) stator quadrature-axis current in a Permanent Magnet Synchronous Generator (PMSG) wind turbine, in order to reach rated maximum power at wind speeds ...
Hazem Hassan Ali Sayed
doaj   +1 more source

Customized Itinerant Frequency Combs by Cascaded Nonlinear Effects

Advanced Science, EarlyView.
A cascaded third‐order nonlinear system generates an itinerant frequency comb with the comb center frequency decoupled from the cavity resonance. This enables arbitrary spectral scaling, flexible spacing adjustments, and real‐time central‐frequency engineering, allowing comb splicing and subdivision. The resulting versatility and reconfigurability open
Yi Wang, Yulong Liu, Zeji Li, Wenyan Wang, Sihan Wang, Cheng Wang, Jingwei Zhou, Jie‐Qiao Liao, Tiefu Li   +8 more
wiley   +1 more source

Longitudinal Awake Mouse Brain Imaging Using Functional Ultrasound and Functional Ultrasound Localization Microscopy

Advanced Science, EarlyView.
Awake longitudinal multimodal ultrasound imaging integrates functional ultrasound (fUS), ultrasound localization microscopy (ULM), and functional ULM (fULM) to characterize cerebrovascular function, microvascular architecture, and flow dynamics within the same animals over time.
Zhe Huang, Yike Wang, Matthew R. Lowerison, Yue Xu, Murong Yi, Bing‐Ze Lin, YiRang Shin, Nathiya Vaithiyalingam Chandra Sekaran, Daniel A. Llano, Pengfei Song   +9 more
wiley   +1 more source

Lumped Circuits Modeling of Dynamic Energy Transfer in Triboelectric Nanogenerators with Nonlinear Electromechanical Coupling

Advanced Energy Materials, EarlyView.
This work presents a lumped electromechanical model that identifies resonance, impedance matching, and structural dynamics as key determinants of energy transfer in triboelectric nanogenerators. Experimentally validated across mechanically distinct devices, the framework also shows that excitation‐dependent responses enable simultaneous energy ...
Sajib Roy, Bhaskar Dudem, Md Delowar Hussain, S Ravi P Silva   +3 more
wiley   +1 more source

Extending Battery Usage Time of a Heavy‐Duty Mecanum‐Wheeled Autonomous Electric Vehicle Used in Iron–Steel Industry by Considering Wheel Slippage

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
It is a fact that slippage causes tracking errors in both longitudinal and lateral directions which results to have less travel distance in tracking a reference trajectory. Less travel distance means having energy loss of the battery and carrying loads less than planned.
Gokhan Bayar, Goktug Hambarci, Ali Sezai Demirel   +2 more
wiley   +1 more source

An Active Knee–Ankle–Foot Orthosis With Torque‐Dense, Low‐Impedance Knee Actuation

Advanced Intelligent Systems, EarlyView.
This article presents the simulation, design, and clinical validation of a robotic active KAFO with torque‐sensitive actuation. By passively and continuously adapting the transmission ratio in response to the knee torque, the torque‐sensitive actuator overcomes the tradeoff between torque, weight, and impedance observed in conventional robot actuators,
Brendon Ortolano, Kai Pruyn, Rosemarie Murray, Lukas Gabert, Tommaso Lenzi   +4 more
wiley   +1 more source

Critical Temperature and Frequency Characteristics of GPLs-Reinforced Composite Doubly Curved Panel

Applied Sciences, 2020
In this study, critical temperature and frequency characteristics of a doubly curved panel are reinforced by graphene nanoplatelets (GPLs) with the aid of a two-dimensional generalized differential quadrature method (2D-GDQM) are investigated.
Armen Adamian, Keivan Hosseini Safari, Mehdi Sheikholeslami, Mostafa Habibi, M. S. H. Al-Furjan, Guojin Chen   +5 more
doaj   +1 more source

Patient‐Personalized Membrane‐Coated Magnetic Nanovectors: Probing the Biomimetic Interface for Targeted Tumor Theranostics

Advanced NanoBiomed Research, EarlyView.
This study presents a label‐free spectroscopic platform to evaluate membrane protein conformation on patient‐derived glioblastoma cell membrane‐coated magnetic nanovectors. This work demonstrates that preserving membrane protein integrity during nanoparticle fabrication enhances homotypic tumor targeting and reduces hard protein corona formation ...
Daniele De Pasquale, Michela Patrucco, Melike Belenli Gümüş, Alessandra Flori, Luca Menichetti, Stefania Moscato, Valentina Bonanni, Alessandra Gianoncelli, Milan Žižić, Pietro Fiaschi, Monica Truffelli, Andrea Bianconi, Melis Emanet, Gianmarco Ferri, Chiara Maria Mazzanti, Carlotta Pucci, Gianni Ciofani   +16 more
wiley   +1 more source

Free vibration and buckling analyses of a size-dependent axially functionally graded beam incorporating transverse shear deformation

Results in Physics, 2017
A new size-dependent axially functionally graded (AFG) beam model with transverse shear deformation is proposed based on the modified couple stress theory (MCST).
Wanli Yang, Dan He
doaj   +1 more source