Results 41 to 50 of about 189,622 (293)

Investigation of the Influence of Splitter Blades on the Resonance Conditions of Impellers

Applied Sciences, 2019
The conventional resonance conditions are derived based on the conventionally designed impellers without splitter blades. This paper proposes the resonance conditions for impellers under the excitation from the impeller−diffuser interaction with ...
Kaicheng Liu, Cheng Yan
doaj   +1 more source

Novel Single Inverter-Controlled Brushless Wound Field Synchronous Machine Topology

Mathematics, 2021
This paper proposes a novel brushless excitation topology for a three-phase synchronous machine based on a customary current-controlled voltage source inverter (VSI).
Syed Sabir Hussain Bukhari, Ali Asghar Memon, Sadjad Madanzadeh, Ghulam Jawad Sirewal, Jesús Doval-Gandoy, Jong-Suk Ro   +5 more
doaj   +1 more source

Shock and harmonic response analysis of UAV nose landing gear system with air damper

Cogent Engineering, 2021
This research presents a response analysis of a UAV nose landing gear system equipped with an air damper under shock and harmonic excitation. The study begins with dynamic modeling of the UAV landing gear system.
Lovely Son, Muhammad Surya, Mulyadi Bur, Ubaidillah Ubaidillah, Radon Dhelika   +4 more
doaj   +1 more source

Excitation of multiple 2-mode parametric resonances by a single driven mode

, 2017
We demonstrate autoparametric excitation of two distinct sub-harmonic mechanical modes by the same driven mechanical mode corresponding to different drive frequencies within its resonance dispersion band. This experimental observation is used to motivate
Do, Cuong, Ganesan, Adarsh, Seshia, Ashwin   +2 more
core   +1 more source

Research of three harmonic excitation synchronous motor speed control system

AIP Advances
This paper presents a speed control system based on the third harmonic excitation synchronous motor. Compared with harmonic excitation by adding harmonic windings in the electric excitation motor, the structure is simpler, with lower hardware costs and ...
Xiaoou Fan, Shaohua Ma, Dezhi Chen, Chaoqun Liu   +3 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Comparative Analysis of Shaft Voltage Harmonic Characteristics in Large-Scale Generators: OEM and Excitation System Comparisons

Energies
This study presents a comparative harmonic analysis of shaft voltage waveforms in large-scale steam turbine generators, emphasizing the influence of excitation system topology and generator design on spectral behavior.
Katudi Oupa Mailula, Akshay Kumar Saha
doaj   +1 more source

Surface plasmon mediated harmonically resonant effects on third harmonic generation from Au and CuS nanoparticle films

Nanophotonics, 2023
A growing class of nonlinear materials employ the localized surface plasmonic resonance (LSPR) of nanoparticles to enhance harmonic generation. Material systems containing harmonically coupled metallic and semiconductor plasmonic nanoparticles have been ...
Spear Nathan J., Yan Yueming, Queen Joshua M., Singh Mahi R., Macdonald Janet E., Haglund Richard F.   +5 more
doaj   +1 more source

NIR-to-NIR Imaging: Extended Excitation Up to 2.2 μm Using Harmonic Nanoparticles with a Tunable hIGh EneRgy (TIGER) Widefield Microscope

Nanomaterials, 2021
Near-infrared (NIR) marker-based imaging is of growing importance for deep tissue imaging and is based on a considerable reduction of optical losses at large wavelengths.
Laura Vittadello, Jan Klenen, Karsten Koempe, Laura Kocsor, Zsuzsanna Szaller, Mirco Imlau   +5 more
doaj   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source