Results 71 to 80 of about 16,150 (212)

Simplified Small‐Signal Modeling Method for Non‐Isolated High Step‐Up Converters

International Journal of Circuit Theory and Applications, EarlyView.
A generalized small‐signal modeling methodology for a family of non‐isolated high step‐up DC‐DC converters is proposed. ABSTRACT This work presents a generalized small‐signal modeling methodology for a family of DC–DC converters based on the four‐state switching cell with a wide conversion range (WCR‐4SSC) operating in continuous conduction mode (CCM).
Samuel Antonio Macedo de Oliveira, Pedro Herysson Almeida da Silva, Fernando Lessa Tofoli, Dalton de Araújo Honório   +3 more
wiley   +1 more source

A Multimodal Haptic Feedback Interface with Thin-Film Compliant Mechanism. [PDF]

Adv Sci (Weinh)
Multimodal haptic devices can trigger different mechanoreceptors, enabling richer haptic information. This study presents an electromagnetic multimodal haptic device capable of delivering indentation, stretch, and vibration stimuli. The device is enabled by a novel polymer thin‐film compliant mechanism that provides high translational compliance along ...
Wan J, Nicotra E, Davies J, Zhu K, Nguyen QA, Zhao S, Nguyen CC, Sharma B, Ji A, Truong H, Pruscino P, Huynh T, Phan PT, Phan HP, Lovell NH, Do TN.   +15 more
europepmc   +2 more sources

Hybrid Inverters With Dual Switching Frequencies for Switched Reluctance Motors

Energy Science &Engineering, EarlyView.
A hybrid dual‐switching‐frequency inverter for SRMs is proposed, combining SiC and IGBT devices based on rotor inductance. The method enables accurate current tracking with simple hysteresis control, significantly reducing torque ripple, vibration, and acoustic noise while cutting inverter cost compared to full‐SiC solutions.
Fares S. El‐Faouri, Majd G. Batarseh, Hamzeh J. Jaber, Ayman Faza, Wejdan Abu Elhaija   +4 more
wiley   +1 more source

Network Models for Assessing the Co-occurrence Between Stuttering and ADHD. [PDF]

Int J Lang Commun Disord
ABSTRACT Background and Aims Previous studies have indicated that people who stutter (PWS) and people with ADHD (PWADHD) show similar cognitive profiles, implying a link between the two neurodevelopmental profiles. This study examined the relationship between stuttering and ADHD and investigated the extent of this similarity using Network Models (NMs).
Kazazi F, Howell P.
europepmc   +2 more sources

Improved Power Tracking and Performance Evaluation Using a Tri‐Meta Hybrid DOA–CSA–WOA‐Based MPPT Controller for Standalone PV System

Energy Science &Engineering, EarlyView.
A Tri‐Meta Hybrid DOA–CSA–WOA Maximum Power Point Tracking controller is developed to enhance photovoltaic system performance. The proposed approach achieves higher tracking efficiency, faster convergence, and robust operation under dynamic irradiance and partial shading conditions.
Ali Abbas, Muhammad Farhan, Nouman Safdar, Muhammad Junaid Rabbani, Mohammad Rashed M. Altimania, Waleed Mohammed Abdelfattah, Hafiz Mudassir Munir   +6 more
wiley   +1 more source

Optimal Lithium‐Ion Battery—Supercapacitor Energy Storage System Capacity for Off‐Grid Intermittent Renewable Energy Mini‐Grids

Energy Science &Engineering, EarlyView.
Deployment of an aging‐based controller during designing of optimal lithium‐ion battery—supercapacitor (LB‐Sc) hybrid energy storage system (HESS) capacity, in off‐grid IREMGs, improves performance of the LB and reduces its aging rate. Also, annualised cost of the LB‐Sc HESS improves by 33.15% in relation to optimal LB SESS.
Isaac Gwayi, Cuthbert Z. M. Kimambo, Sarah Paul Ayeng'o   +2 more
wiley   +1 more source

NKX2‐1 Downstream Regulatory Structural Variants Explain a Substantial Proportion of Molecular Diagnoses in Patients With Benign Hereditary Chorea

Movement Disorders, EarlyView.
Abstract Background NKX2‐1–related disorders (NKX2‐1‐RDs) classically present with a triad of neurological, endocrine, and pulmonary manifestations, including benign hereditary chorea. However, in a fraction of patients, NKX2‐1 coding variants are not detected, and variants outside the NKX2‐1 locus have been reported.
Robin Wijngaard, Lucy Dougherty‐de Miguel, German Demidov, Galuh Astuti, Amaia Lasa‐Aranzasti, Ana Cueto‐González, Marta Correa‐Vela, Carlos Lázaro‐Hernández, Charlotte A. Haaxma, Clara D.M. van Karnebeek, David Gómez‐Andrés, Ignacio Iglesias‐Serrano, Jiddeke M. van de Kamp, Jolanda Schieving, Laura Trujillano, Marc Engelen, Beatriz Muñoz‐Cabello, Roderick P.P.W.M. Maas, Thatjana Gardeitchik, Victoria Gonzalez, Annemarie de Vreugd, Cristina Pérez‐Sanchez, Elisabet Lloveras, Erik‐Jan Kamsteeg, Maartje Pennings, Natalia Rey‐Viñets, Javier Sánchez, Ronald van Beek, Antonio Moreno‐Galdó, Lisenka E.L.M. Vissers, Kornelia Neveling, Anna Marcé‐Grau, Machteld M. Oud, Belén Pérez‐Dueñas   +33 more
wiley   +1 more source

Etude, modélisation et réalisation d’un convertisseur DC/AC pour système de pompage photovoltaïque de 4 kVA

Revue des Énergies Renouvelables, 2013
L’estimation des pertes par effet joule de l’étage de puissance est une étape incontournable, lors de la conception d’un convertisseur. En effet, cette estimation nous permet de mieux évaluer les performances du commutateur, de bien dimensionner le ...
S. Chikhi, M.D. Draou, F. Chikhi, A. Mehdaoui, A. Mammeri   +4 more
doaj  

1D Pre‐Acquisition Navigator Correcting Respiratory‐Induced Field Fluctuations in Multi‐Echo Gradient‐Echo Imaging of the Thoracic Spinal Cord

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose In the spinal cord (SC), multi‐echo gradient echo (ME‐GRE) increases gray (GM) and white matter (WM) contrast and improves sensitivity to lesions in people with multiple sclerosis (pwMS). However, SC ME‐GRE is susceptible to breathing‐induced field fluctuations, causing ghosting artifacts and signal loss.
Alicia E. Cronin, Alexandre D'Astous, Nathan Williams, Antoine Guénette, Aimee Salakhov, Seth Stubblefield, Colin D. McKnight, Lipika Narisetti, Subramaniam Sriram, Seth A. Smith, Ryan K. Robison, Guillaume Gilbert, Julien Cohen‐Adad, Kristin P. O'Grady   +13 more
wiley   +1 more source

High Dynamic Range Turbo‐FLASH B1 Mapping for Characterizing Multi‐Transmit Multi‐Receive RF Arrays, Validated at 7 T and 11.7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Transmit (B1+) and receive (B1−) sensitivities of parallel‐transmit/receive RF array are a prerequisite for modern ultra‐high‐field MRI. Their accurate mapping remains challenging for coils with high transmit dynamic range, particularly in regions with low combined‐mode B1+ magnitude, where standard reconstruction is impaired by noise.
Natalia Dudysheva, Franck Mauconduit, Michel Luong, Alexis Amadon, Nicolas Boulant, Vincent Gras   +5 more
wiley   +1 more source