Results 161 to 170 of about 131,284 (306)

Máquina assíncrona trifásica de rotor bobinado duplamente alimentada por meio de transformador rotativo [PDF]

, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2011A máquina assíncrona trifásica é um equipamento extremamente difundido no universo das máquinas ...
Ruviaro, Maurício
core  

Rotor-Stator Interaction in Turbomachines

Journal of Applied Sciences, 2002
E. Shirani ., K. Daneshkhah .
openaire   +1 more source

Detection and Diagnosis of Broken Rotor Bar Based on the Analysis of Signals from a Variable Speed Drive

In this paper, the diagnosis of broken rotor bar (BRB) is investigated analytically and experimentally based on induction motors (IM) with variable speed drives (VSD).
Gu, Fengshou, Ball, Andrew, Lane, Mark, Ashari, Djoni   +3 more
core  

Model Development and Stability Analysis for a Turbocharger Rotor System under Multi-Field Coupled Forces

Automotive turbochargers have been widely applied in vehicles in order to increase the power output of internal combustion engines by increasing the air to fuel ratio entering the piston cylinders.
Zhang, Hao
core  

Controlling the Guanidinium Cation Rotation by Cation–π Interactions

Angewandte Chemie International Edition, EarlyView.
A lanthanide π‐container has been employed to trap a guanidinium cation inside the aromatic cavity by cation–π interactions. X‐ray crystallography and solid‐state nuclear magnetic resonance (NMR) spectroscopy at fast magic‐angle spinning (MAS) frequencies have been utilized to probe the underlying host–guest interactions.
Hannah Busch, Lennart Günzel, Ettore Bartalucci, Robert Schuster, Christian Zocher, Martin Börner, Chandan K. Das, Florian Taube, Björn Corzilius, Maria Fyta, Matthias Ernst, Berthold Kersting, Thomas Wiegand   +12 more
wiley   +1 more source

NUMERICAL AND EXPERIMENTAL INVESTIGATIONS IN A VANED DIFFUSER OF SHF IMPELLER: FLUID LEAKAGE EFFECT [PDF]

, 2013
The paper presents the analysis of the performance and the internal flow behaviour in the vaned diffuser of a radial flow pump using PIV technique, pressure probe traverses and numerical simulations.
DAZIN, Antoine, BOIS, Gérard, BAYEUL-LAINÉ, Annie-Claude, DUPONT, Patrick, CAVAZZINI, Giovanna, G. Bois, ROUSSETTE, Olivier, A. C. Bayeul, P. Cherdieu, P. Dupont, O. Roussette, CHERDIEU, Patrick, A. Dazin   +12 more
core  

The electromagnetic performance of brushless permanent magnet DC motors - with particular reference to noise and vibration. [PDF]

, 1991
A comprehensive analytical technique is developed for predicting the instantaneous magnetic field distribution in radial-field, surface-mounted permanent magnet brushless DC motors under any load condition and commutation strategy.
Zhu, Zi-Qiang
core  

Overcrowded Alkene Photo‐Redox‐Switches Based on Quinolinium/Carbene Building Blocks

Angewandte Chemie International Edition, EarlyView.
A modular synthesis of a new class of photo‐ and redox‐switches is described based on the combination of quinolinium salts and carbenes. Photochemical switching allows to selectively switch between folded E/Z isomers, while electrochemical switching allows to change between neutral, radical cation and dicationic oxidation states, which are all isolable
Chris Burdenski, Patrick W. Antoni, Marcel E. Baumert, Leonie Ziemann, Samaresh C. Sau, Julian J. Holstein, Maria Castro, Nitin Kumar, Ofer Filiba, Igor Schapiro, Max M. Hansmann   +10 more
wiley   +1 more source

Complexity Analysis of Bubble Plumes in Power Law Fluids Based on Chaos Theory

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In order to reveal the complexity of the internal flow of bubble plume in power law fluid, the flow characteristics and chaotic characteristics of plume are studied by experiment and theory. The chaotic characteristic parameters (correlation dimension D, K entropy, and Lyapunov exponent λ) of gas velocity under different superficial gas ...
Xin Dong, Chong Dong, Can Xue, Meiheng Peng, Ying Feng, Jianwei Zhang, Yinuo Liu   +6 more
wiley   +1 more source

Engineering molecular rotor-stator ligand architectures on copper nanoclusters for efficient photothermal conversion. [PDF]

Nat Commun
Yan B, Samarasinghe DSND, Sun J, Deng H, Li L, Qi MQ, Zhao F, Xu Q, Guo H, Sun X, Gong X, Huo R, Zhu M, Wu Q, Xie Z, Xin C, Wang Y, Jiang X, Li S, Li F, Zhou M, Aikens CM, Zheng N, Shen H.   +23 more
europepmc   +1 more source