Results 251 to 260 of about 3,464,703 (305)
Some of the next articles are maybe not open access.
The dynamics of traveling waves for a nonlinear Belousov-Zhabotinskii system
, 2020In this paper, we consider the existence of traveling wave fronts in a Belousov-Zhabotinskii system with delay. By traveling wave transformation and time scale transformation, we change the Belousov-Zhabotinskii system with delay into a singularly ...
Z. Du, Qi Qiao
semanticscholar +1 more source
Physical Review D, 1990
We find the metric, scalar, and gauge fields for a traveling wave on a strongly gravitating cosmic string. This solutiom is found by applying a transformation to the corresponding solution for a long straight static string. Limiting cases of the solution are examined and found to agree with previous results.
, Garfinkle, , Vachaspati
openaire +2 more sources
We find the metric, scalar, and gauge fields for a traveling wave on a strongly gravitating cosmic string. This solutiom is found by applying a transformation to the corresponding solution for a long straight static string. Limiting cases of the solution are examined and found to agree with previous results.
, Garfinkle, , Vachaspati
openaire +2 more sources
1990
Abstract In the previous chapter we dealt with the existence and spontaneous formation of stable spatially non-uniform patterns. Here, we consider another form of spatial behaviour. We envisage a (long) tube, initially containing a spatially uniform distribution of reactants.
Peter Gray, Stephen K Scott
openaire +1 more source
Abstract In the previous chapter we dealt with the existence and spontaneous formation of stable spatially non-uniform patterns. Here, we consider another form of spatial behaviour. We envisage a (long) tube, initially containing a spatially uniform distribution of reactants.
Peter Gray, Stephen K Scott
openaire +1 more source
Traveling-wave electrooptic modulator
Applied Optics, 1983An integrated-optics Mach-Zehnder interferometric modulator in LiNbO3 has been designed and fabricated. The electrodes are 3-μm thick asymmetric coplanar striplines formed by ion-beam etching techniques. The push–pull design and the r33 electrooptic coefficient of LiNbO3 are utilized for efficient modulation.
C M, Gee, G D, Thurmond, H W, Yen
openaire +2 more sources
1955 International Electron Devices Meeting, 1955
Good broad-band microwave limiters can be built by appropriately modifying conventional traveling-wave tubes. For example, with a single one-watt tube modified suitably the output power could be held constant to within ±½ db over a range of input power of approximately 20 db.
F.B. Fank, G. Wade
openaire +1 more source
Good broad-band microwave limiters can be built by appropriately modifying conventional traveling-wave tubes. For example, with a single one-watt tube modified suitably the output power could be held constant to within ±½ db over a range of input power of approximately 20 db.
F.B. Fank, G. Wade
openaire +1 more source
Superconductive traveling-wave photodetectors
LEOS 2008 - 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2008This paper introduces a novel family of devices for ultra-fast, ultra-sensitive and ultra-low-noise optoelectronics, namely superconductive traveling-wave photodetectors (STWPDs). STWPDs can be optimized for ultra-wideband/ultra-sensitive photodetection, photomixing and microwave/THz waveform generation.
Behnood G. Ghamsari, A. Hamed Majedi
openaire +1 more source
"High-gain traveling-wave amplifiers"
IRE Transactions on Electron Devices, 1955Modern techniques make it possible to build traveling-wave amplifiers with stable gains as high as 60 or 70 db. Such tubes can have relatively flat frequency response, and high gain over frequency ranges well in excess of two to one. In design it is necessary to pay strict attention to adequate isolation of the input and output so that spurious ...
E.D. Denman, P.M. Lally
openaire +1 more source
Travelling wave differential protection based on equivalent travelling wave
13th International Conference on Development in Power System Protection 2016 (DPSP), 2016Travelling wave (TW) differential protection fully utilizes the fault information contained in TW at both terminals of a transmission line, so it's a protection with high reliability and high selectivity. However, because TW differential protection needs a large amount of communication, it cannot be put into practical use.
Lanxi Tang Lanxi Tang +3 more
openaire +1 more source
Generalized traveling waves for time-dependent reaction–diffusion systems
Mathematische Annalen, 2020B. Ambrosio, A. Ducrot, S. Ruan
semanticscholar +1 more source
Traveling Wave and Multiple Traveling Wave Solutions of Parabolic Equations
SIAM Journal on Mathematical Analysis, 1982We consider scalar equations $u_t = f(u_{xx} ,u_x ,u)$ with $\frac{\partial }{{\partial \alpha }}f(\alpha ,\beta ,\gamma ) \geq 1$. We first determine the stability of the monotonic traveling wave solutions $u(t,x) = \phi (x - ct,c)$. We then study the continued existence and bifurcations of these solutions as the wavespeed c varies.
openaire +1 more source