Results 61 to 70 of about 131,284 (306)

Foam Generation in Rotor‐Stator Mixers [PDF]

Journal of the Society of Dyers and Colourists, 1986
One of the unit operations in foam technology is foam generation in a liquid/gas mixer. The foaming process of an aqueous liquid system with a surface‐active agent in a rotor‐stator mixer has been studied, and it was found that it could be represented by a mixing characteristic relating the liquid flow rate to the maximum gas flow rate needed to ...
A B J Kroezen, J Groot Wassink
openaire   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

Influence of Upstream and Downstream Compressor Stators on Rotor Exit Flow Field

International Journal of Rotating Machinery, 2014
Measurements acquired at the rotor exit plane illuminate the interaction of the rotor with the upstream vane row and the downstream vane row. The relative phase of the upstream and downstream vane rows is adjusted using vane clocking so that the effect ...
Nicole L. Key
doaj   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Numerical Investigations of Air Flow and Heat Transfer in Axial Flux Permanent Magnet Electrical Machines [PDF]

, 2010
In this study an investigation of heat transfer in air cooled Axial Flux Permanent Magnet (AFPM) electrical machines is carried out. Efficiency of electrical machines is strongly influenced by an effective cooling which is provided by forced convection:
AIROLDI, GIOVANNI
core  

Effects of the contact configurations on the nonlinear dynamics of a rotor-stator contact system

Mechanical Engineering Journal
This study delves into the effects of the contact configurations on the nonlinear dynamics of rotor-stator contact systems through analytical investigation.
Daijiroh YOSHIMORI, Yoshiki SUGAWARA, Masakazu TAKEDA   +2 more
doaj   +1 more source

Mutations in the stator protein PomA affect switching of rotational direction in bacterial flagellar motor

Scientific Reports, 2022
The flagellar motor rotates bi-directionally in counter-clockwise (CCW) and clockwise (CW) directions. The motor consists of a stator and a rotor. Recent structural studies have revealed that the stator is composed of a pentameric ring of A subunits and ...
Hiroyuki Terashima, Kiyoshiro Hori, Kunio Ihara, Michio Homma, Seiji Kojima   +4 more
doaj   +1 more source

Rotor–Stator Interaction in a Diffuser Pump [PDF]

Journal of Turbomachinery, 1989
The interaction between impeller blades and diffuser vanes in a diffuser pump was investigated. Steady and unsteady pressure measurements were taken on the diffuser vanes, and the shroud wall of a vaned and a vaneless diffuser. Steady, unsteady, and ensemble-averaged unsteady data, as well as frequency spectra, are presented. The measurements were made
N. Arndt, A. J. Acosta, C. E. Brennen, T. K. Caughey   +3 more
openaire   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

A fault monitoring method for wind power generation system based on sliding mode observer

Archives of Electrical Engineering, 2020
In this paper, a rotor current fault monitoring method is proposed based on a sliding mode observer. Firstly, the state-space model of the Double-Fed Induction Generator (DFIG) is constructed by vector transformation.
Wenxin Yu, Shao Dao Huang, Dan Jiang
doaj   +1 more source