Results 51 to 60 of about 1,388,291 (195)

Finite-Element Simulations of Light Propagation through Circular Subwavelength Apertures

, 2009
Light transmission through circular subwavelength apertures in metallic films with surrounding nanostructures is investigated numerically. Numerical results are obtained with a frequency-domain finite-element method.
Burger, S., Kleemann, B. H., Schmidt, F., Zschiedrich, L.   +3 more
core   +1 more source

Tooth contact analysis and manufacturing of dual lead worm gears in ISO type I

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
In this paper, the tooth contact pattern and transmission errors of dual lead worm gears in ISO type I are analyzed using tooth contact analysis (TCA) and the worm gears are manufactured.
Shigenori HAMADA, Kazumasa KAWASAKI, Isamu TSUJI   +2 more
doaj   +1 more source

Block QPSK modulation codes with two levels of error protection [PDF]

, 1994
A class of block QPSK modulation codes for unequal error protection (UEP) is presented. These codes are particularly suitable either for broadcast channels or for communication systems where parts of the information messages are more important than ...
Lin, Shu, Morelos-Zaragoza, Robert H
core   +1 more source

Sources of Excitation and Models for Cylindrical Gear Dynamics: A Review

Machines, 2020
In this paper, a review of the evolution of the study of cylindrical gear dynamics is presented. After a brief historical introduction to the field, the first attempts to describe the complex interactions in those systems are analyzed introducing the ...
Fabio Bruzzone, Carlo Rosso
doaj   +1 more source

Monitoring voltage collapse margin by measuring the area voltage across several transmission lines with synchrophasors

, 2014
We consider the fast monitoring of voltage collapse margin using synchrophasor measurements at both ends of transmission lines that transfer power from two generators to two loads.
Dobson, Ian, Ramirez, Lina
core   +1 more source

Investigation of the impact of cycloidal gear pin tooth wear on transmission error in precision planetary cycloidal reducers

International Journal of Metrology and Quality Engineering
In light of the alteration pattern of transmission error following wear of a cycloid gear and needle tooth, this study employs the precision planetary cycloidal 80E reducer as an example.
Xu Hang, Wei Chenzhou, Gui Wei, Yang Shufeng, He Yuanchun, Xie Guiping, Wu Yaoting   +6 more
doaj   +1 more source

The design and analysis of single flank transmission error tester for loaded gears [PDF]

To strengthen the understanding of gear transmission error and to verify mathematical models which predict them, a test stand that will measure the transmission error of gear pairs under design loads has been investigated.
Bassett, Duane E., Houser, Donald R.
core   +1 more source

A Method for Analyzing the Meshing Contact Performance of Real Tooth Surfaces of Spiral Bevel Gears

Lubricants
The meshing contact performance of spiral bevel gears is critical for transmission accuracy and service life but is inevitably influenced by manufacturing deviations.
Jing Deng, Hao Yang, Tianxing Li, Chuang Jiang, Shaoyang Li   +4 more
doaj   +1 more source

Quasi-Static Characteristics and Vibration Responses Analysis of Helical Geared Rotor System with Random Cumulative Pitch Deviations

Applied Sciences, 2020
As one of the long period gear errors, the effects of random cumulative pitch deviations on mesh excitations and vibration responses of a helical geared rotor system (HGRS) are investigated.
Bing Yuan, Geng Liu, Lan Liu
doaj   +1 more source

The design and analysis of single flank transmission error testor for loaded gears [PDF]

Due to geometrical imperfections in gears and finite tooth stiffnesses, the motion transmitted from an input gear shaft to an output gear shaft will not have conjugate action.
Bassett, D. E., Houser, D. R.
core   +1 more source