Results 11 to 20 of about 103,222 (259)
Coronary Circulation and the Tail of First-Pass Indicator Dilution Curves [PDF]
Circulation Research, 1964 In a series of canine heart-lung preparations, single-pass indicator dilution curves were obtained with and without cannulation of the coronary sinus. Further evidence was obtained that the tails of the curves are significantly elevated above the tails predicted from the simple one-dimensional random-walk relation. To provide estimates of the
B L, CROWDER, W C, GREER, C W, SHEPPARD
openaire +2 more sources
Distributed control for a robotic swarm to pass through a curve virtual tube
Robotics and Autonomous Systems, 2023 18 pages, 21 ...
Quan Quan, Yan Gao 0018, Chenggang Bai
openaire +2 more sources
Research on rail wear of small radius curve in EMU depot [PDF]
Railway Sciences, 2022 Purpose – With the help of multi-body dynamics software UM, the paper uses Kik–Piotrowski model to simulate wheel-rail contact and Archard wear model for rail wear.
Hao Li, Jialin Sun, Guotang Zhao
doaj +1 more source
Study on Gage Widening Methods for Small-Radius Curves
Applied Sciences, 2021 Existing gage widening standards and the influence of gage widening on the curve passing performance of trains and rail wear were examined. The existing gage widening theory can determine the minimum curve radius that needs to be widened, the widening ...
Pu Wang +3 more
doaj +1 more source
Sensorless position estimating and transition time identifying for the spool of a high speed on/off solenoid valve [PDF]
FME Transactions, 2022 In this paper, a sensorless method of detecting the spool position of a high-speed on/off solenoid valve is presented. The method depends on analyzing the time-current curve of the solenoid coil passing current and measuring the maximum stroke of the ...
Aborobaa Abdelfatah N. +3 more
doaj +1 more source
Light curves of light rays passing through a wormhole [PDF]
Physical Review D, 2017 Gravitational lensing is a good probe into the topological structure of dark gravitating celestial objects. In this paper, we investigate the light curve of a light ray that passes through the throat of an Ellis wormhole, the simplest example of traversable wormholes. The method developed here is also applicable to other traversable wormholes. To study
Tsukamoto, Naoki, Harada, Tomohiro
openaire +2 more sources
Study on Curving Passing Performance of Rail Grinding Wagon Considering Car-Body Flexibility
机车电传动, 2021 The passing speed is much lower than the design speed of curved track when rail grinding wagon performs the curve grinding operation, which results in the excess superelevation phenomenon.
Ziyang SONG, Maohai FU
doaj
Iraqi Journal for Computer Science and Mathematics, 2022 A new curve is produced and graphically studied. The name of my daughter, Nada, has been given to this curve; in other words, Nada is used to describe this curve whenever it is used in this paper.
Laith H. M. Al-ossmi
doaj +1 more source
On the trajectories of a small particle passing through a narrow curved channel.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1988 The motion of a small particle is studied in a viscous flow through a narrow and sinusoidally wavy channel. Assuming that the ratio of the amplitude to the period, the aspect ratio, is small in the walls of the channel, an approximate solution of the equations of motion on the fluid and the particle is found maintainig the precision of the third order ...
HASEGAWA, Eiji, SAIKAI, Masaki
openaire +3 more sources
Simulation Analysis of Forced-Steering Device Impact on Low-Floor Vehicle Curve Passing Performance
Chengshi guidao jiaotong yanjiu[Objective] Low-floor rail transit vehicles with independent wheelset lack curve guidance capabilities, leading to severe wheel-rail wear, reducing safety and stability of vehicle operation.
ZHANG Yanyan +3 more
doaj +1 more source