Results 111 to 120 of about 25,669 (269)

Analysis of a Novel Brushless Doubly Fed Reluctance Generator Based Wind Energy Conversion System

Energy Science &Engineering, EarlyView.
BDFRG based grid connected wind energy conversion system. ABSTRACT This paper presents a grid connected Brushless Doubly‐Fed Reluctance Generator (BDFRG) based wind energy conversion system. It offers a reliable and cost‐effective solution since its brushless and cage‐less rotor structure eliminates the need for slip rings, reducing maintenance costs ...
Subir Datta, John Lalsanglien, Subhasish Deb, Robert Singh, C. Rohmingtlunga, Md. Minarul Islam, Taha Selim Ustun   +6 more
wiley   +1 more source

Experimental Analysis of a Coaxial Magnetic Gear Prototype

Machines
Magnetic gears are becoming promising devices that can replace conventional mechanical gears in several applications, where reduced maintenance, absence of lubrication and intrinsic overload protection are especially relevant.
Stefano Lovato, Giovanni Barosco, Ludovico Ortombina, Riccardo Torchio, Piergiorgio Alotto, Maurizio Repetto, Matteo Massaro   +6 more
doaj   +1 more source

The detection of gear noise computed by integrating the Fourier and Wavelet methods [PDF]

, 2008
This paper presents a new gearbox noise detection algorithm based on analyzing specific points of vibration signals using the Wavelet Transform. The proposed algorithm is compared with a previouslydeveloped algorithm associated with the Fourier ...
Forcelli A., NIOLA, VINCENZO, Quaremba G.   +2 more
core  

Movement Disorders in Neuromyelitis Optica Spectrum Disorder: A Systematic Review

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Several movement disorders (MD) have been reported to occur in neuromyelitis optica spectrum disorder (NMOSD). No extensive review has addressed the whole spectrum of MD in NMOSD. Objective This article aims to review MD in NMOSD, describing its prevalence and features.
Luciana A.F. Bringel, Pedro L.G.S.B. Lima, Pedro V.F. Rodrigues, Francisco L.H.B. Cavalcante, Amanda R. Pinheiro, Fabricia M.S. Saraiva, Cynthia P. Rodrigues, Paulo V.S. Gonçalves, Leonardo J.R.A. Melo, Antônio E. Camelo‐Filho, Avelino M. Dutra‐Junior, Samuel R.O. Veras, Fernanda M.M. Carvalho, Flávia P.S. Rolim, Gabriela J. Martins, José A.C. D'Almeida, Pedro Braga‐Neto, Milena S. Pitombeira, Paulo R. Nobrega   +18 more
wiley   +1 more source

Voice and Speech in Atypical Parkinsonian Disorders

Movement Disorders Clinical Practice, EarlyView.
Background Motor speech disorders are early, common, and functionally limiting features of atypical parkinsonian disorders (APDs) such as progressive supranuclear palsy (PSP), corticobasal syndrome (CBS), and multiple system atrophy (MSA). These impairments are underrecognized and undertreated in neurology clinics.
Federico Rodriguez‐Porcel, Farwa Ali, Michiko Bruno, Heather Davis Cuevas, Rohit Dhall, Kylie Dunne‐Platero, Lawrence I. Golbe, Ihtsham Haq, Nicole Herndon, Lawrence S. Honig, Kyurim Kang, Sarah Kremen, Guillaume Lamotte, Nikolaus R. McFarland, Michela Mir, Leila Montaser‐Kouhsari, Alexander Pantelyat, Joel Page, Hylan Pickett, Laura Purcell Verdun, Kelly Richardson, Jessica Shurer, Michelle Troche, Rene L. Utianski, Katya Villarreal‐Cavazos, Tuhin Virmani, Anne‐Marie Wills, as the Diagnosis and Treatment Working Group, CurePSP Center of Care (CoC) Network, Farwa Ali, Michiko Bruno, Timothy Chang, Rohit Dhall, Kimiko Domoto‐Reilly, Lawrence I. Golbe, Ihtsham Haq, Lawrence S. Honig, Sarah Kremen, Guillaume Lamotte, Zoltan Mari, Nikolaus R. McFarland, Leila Montaser‐Kouhsari, Alexander Pantelyat, Federico Rodriguez‐Porcel, Junaid Siddiqui, Jessica Shurer, Christopher Spears, Tuhin Virmani, Anne‐Marie Wills   +48 more
wiley   +1 more source

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Echo‐Planar Imaging (EPI) is central to fMRI, diffusion MRI, and many dynamic clinical applications, yet rapid gradient switching induces strong mechanical vibrations, generates acoustic noise, and contributes to ghosting artifacts—effects that intensify at ultra‐high fields.
Amir Seginer, Alexander Bratch, Shahar Goren, Edna Furman‐Haran, Noam Harel, Essa Yacoub, Rita Schmidt   +6 more
wiley   +1 more source

A Human Powered Micro-generator for Charging Electronic Devices [PDF]

, 2018
A hand-pulled generator has been designed and tested. A preliminary result has been obtained and discussed. This device was created to provide outlet-free charging. Electronic devices are useful when going out into the wilderness. A portable power supply
Adam, John
core   +1 more source

Predefined‐Time Dynamic Surface Control of Tank Horizontal Stabilization System With Disturbance

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Modern new tanks are difficult to achieve high precision control of the horizontal stabilization system due to electromechanical coupling and road surface disturbance during high‐speed combat. A predefined‐time dynamic surface controller (DSCPT) is proposed for the fast stabilization and strong disturbance problems of the tank horizontal ...
Zhicheng Fan, Shusen Yuan, Wenxiang Deng, Haoqi Wen, Haochuan Sun, Jianyong Yao   +5 more
wiley   +1 more source

Identification and proposed control of helicopter transmission noise at the source [PDF]

Helicopter cabin interiors require noise treatment which is expensive and adds weight. The gears inside the main power transmission are major sources of cabin noise.
Coy, John J., Coy, John J., Handschuh, Robert F., Huff, Ronald G., Karchmer, Allan M., Krejsa, Eugene A., Lewicki, David G.   +6 more
core   +2 more sources

An Improved Mesh Stiffness Model for a Gear Tooth With Double Cracks on Both Sides Considering Opened and Closed States

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Research on the failure mechanisms of gears with multiple cracks has gained widespread attention. Among these, the study of the mesh stiffness characteristics of gears with multiple cracks is crucial for optimizing gear design and improving transmission reliability.
Luyan Xu, Xin Yu, Yunyun Sun
wiley   +1 more source