Results 91 to 100 of about 12,334 (255)
Facet‐Dependent Water Inhibition of Alkanol Dehydration on TiO2 via Distinct Water–Alkanol Complexes
Angewandte Chemie, EarlyView.Water inhibits alkanol dehydration on TiO2 through facet‐dependent manners via distinct IPA‐water complexes. On TiO2(001), water forms a strongly hydrogen‐bonded isopropoxide–H2O complex that readily dominates the surface and substantially elevates the activation barrier, whereas on TiO2(101), water weakly hydrogen‐bonds to molecular IPA, resulting in ...
Wenda Hu +14 more
wiley +2 more sources
Научный вестник МГТУ ГА, 2017 The paper presents numerical results analysis of main rotor vibration due to helicopter main rotor thrust pulsation.The calculation method, the object of research and numerical research results with the aim to reduce the amplitude of the vibrations ...
B. S. Kritsky +2 more
doaj
Numerical Investigation of the Vortex Ring Phenomena in Rotorcraft
AerospaceDue to their complex aerodynamics, helicopters may enter different dangerous aerodynamic conditions under certain adverse circumstances. In this paper, we examine one such phenomenon—the Vortex Ring State (VRS).
Vytautas Rimša, Mykolas Liugas
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Научный вестник МГТУ ГА, 2019 The article considers the problem of the flow around the helicopter main rotor taking into account blades flapping in the plane of rotation and in the plane of thrust as well as the elastic blades deformation.
V. A. Vershkov +2 more
doaj +1 more source
GENERATION OF AN ADVANCED HELICOPTER EXPERIMENTAL AERODYNAMIC DATABASE [PDF]
, 2009 The GOAHEAD-consortium was created in the frame of an EU-project in order to create an experimental database for the validation of 3D-CFD and comprehensive aeromechanics methods for the prediction of unsteady viscous flows including rotor dynamics for ...
Sheng, W. +6 more
core
Advanced Science, EarlyView.A versatile framework integrates addressable electrothermal actuation and strain‐constraint mechanisms to construct programmable shape‐morphing soft matter systems. By combining an analytical inverse design strategy for high‐fidelity 3D surface reconstruction with deep learning‐based closed‐loop control, this approach enables zero‐energy shape locking,
Kai Liu +5 more
wiley +1 more source
Angewandte Chemie, EarlyView.Bayesian optimization was used to optimize the synthesis parameters of the solid electrolyte Li7SiPS8$\mathrm {Li}_7\mathrm {SiPS}_8$ in order to increase the ionic conductivity. After only 32 iterations, the ionic conductivity was successfully increased from 2 to 7 mS cm−1$\mathrm {cm}^{-1}$ at 25∘C$^\circ\mathrm {C}$, while synthesis temperature and ...
Lucas G. Balzat +8 more
wiley +2 more sources
RESEARCH OF THE THICKNESS NOISE OF MAIN ROTOR IN FAR FIELD
Научный вестник МГТУ ГА, 2016 The results of acoustic characteristics of the main rotor, in particular the thickness noise are presented. The influences of geometric and kinematic parameters on the thickness noise are investigated.
V. A. Golovkin +2 more
doaj
Contribuição à deteção de defeitos nos rotores de turboalternadores [PDF]
, 2011 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho tem como objetivo desenvolver métodos de detecção, localização e caracterização de defeitos em um ...
Tanno Iamamura, Bruno Akihiro +1 more
core
Advanced Science, EarlyView.eEF1G supports translation elongation of meiotic mRNAs in transcriptionally quiescent leptotene and zygotene spermatocytes. Its depletion in germ cells causes meiotic arrest at the zygotene stage, with defective homologous synapsis and unstable recombination intermediates.
Jianze Xu +12 more
wiley +1 more source