Results 1 to 10 of about 44,482 (164)

On the Counter-Rotation of Closed Time-like Curves [PDF]

Universe, 2022
While it is tempting to think of closed time-like curves (CTCs) around rotating bodies, such as a black hole, as being “caused” by the rotation of the source, Andréka et al.
Yuanyuan Duan, Fangxun Liu, Yu Wang, Yen Chin Ong   +3 more
doaj   +3 more sources

Evolution‐Guided Unidirectional Counter‐Clockwise Rotation for Nonretractable Screw‐in Lead Removal [PDF]

Journal of Arrhythmia
Masatsugu Nozoe, Takafumi Sakamoto, Satoshi Tsujioka, Daisuke Nagatomo, Nobuhiro Suematsu, Toru Kubota   +5 more
doaj   +2 more sources

Improving the Performance of an Innovative Centrifugal Pump through the Independent Rotation of an Inducer and Centrifugal Impeller Speeds

Energies, 2023
This article introduces an innovative design for a centrifugal pump featuring an inducer that enables the independent rotation of both the inducer and the centrifugal impeller.
Ehsan Dehnavi, Moises Solis, Amelie Danlos, Mohamed Kebdani, Farid Bakir   +4 more
doaj   +1 more source

Unstable inner cylinder whirl of concentric double rotating cylinder system

Mechanical Engineering Journal, 2022
This research investigated unstable inner cylinder whirl in a double rotating cylinder system in which the axis of the inner cylinder is supported elastically in the radial direction and the axis of the outer cylinder is fixed.
Fumitaka YOSHIZUMI, Masanori IRITANI
doaj   +1 more source

Unstable outer cylinder whirl of concentric double rotating cylinder system

Mechanical Engineering Journal, 2023
This research investigates unstable outer cylinder whirl in a double rotating cylinder system, with both co- and counter-rotation, in which the axis of the outer cylinder is supported elastically in the radial direction and the axis of the inner cylinder
Fumitaka YOSHIZUMI, Masanori IRITANI
doaj   +1 more source

Analysis of Cyperus esculentus–Soil Dynamic Behavior during Rotary Tillage Based on Discrete Element Method

Agriculture, 2023
Considering the problems of low soil fragmentation rates, high working resistance, and high energy consumption in the harvesting process of Cyperus esculentus in China, a method of Cyperus esculentus harvesting based on counter-rotation digging is ...
Zhuang Zhao, Dongwei Wang, Shuqi Shang, Jialin Hou, Xiaoning He, Zenghui Gao, Nan Xu, Zengcun Chang, Peng Guo, Xiaoshuai Zheng   +9 more
doaj   +1 more source

Protramax: A Novel Device for Directing Class III Orthopedic Force

Journal of Indian Orthodontic Society, 2023
Facemask has been widely used in the successful correction of Class III malocclusion. A vast majority of the literature noted forward and a counter-clockwise rotation of the maxilla with facemask therapy.
Abhiram Cherukuri, Sumitra Reddy, B. C. Karunakara, M. N. Praveen   +3 more
doaj   +1 more source

Counter-rotating accretion discs [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
11 pages, 13 figures, 1 ...
Dyda, Sergei, Lovelace, Richard V. E., Ustyugova, Galina V., Romanova, Marina M., Koldoba, Alexander V.   +4 more
openaire   +2 more sources

Applying collective motion models to study discordant individual behaviours within a school of fish

Royal Society Open Science, 2023
Computational models of collective motion successfully reproduce the most common behaviours of a school of fish, using only a few elementary interactions between individuals.
Andrea Trucco
doaj   +1 more source

Synchronization in counter-rotating oscillators [PDF]

Chaos: An Interdisciplinary Journal of Nonlinear Science, 2011
An oscillatory system can have opposite senses of rotation, clockwise or anticlockwise. We present a general mathematical description of how to obtain counter-rotating oscillators from the definition of a dynamical system. A type of mixed synchronization emerges in counter-rotating oscillators under diffusive scalar coupling when complete ...
Bhowmick, Sourav K., Ghosh, Dibakar, Dana, Syamal K.   +2 more
openaire   +4 more sources