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We apply the recently improved version of the 0–1 test for chaos to real experimental time series of laser droplet generation
process. In particular two marginal regimes of dripping are considered: spontaneous and forced dripping. The outcomes of the
test reveal that both spontaneous and forced dripping time series can be characterized as chaotic, which coincides with the
previous analysis based on nonlinear time series analysis. 相似文献
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The design and fabrication of a miniature fiber Fabry-Perot pressure sensor with a diameter of 125 microm are presented. The essential element in the process is a thin SiO2 diaphragm that is fusion spliced at the hollow end of an optical fiber. Good repeatability and high sensitivity of the sensor are achieved by on-line tuning of the diaphragm thickness during the sensor fabrication process. Various sensor prototypes were fabricated, demonstrating pressure ranges of from 0 to 40 kPa to 0 to 1 MPa. The maximum achieved sensitivity was 1.1 rad/40 kPa at 1550 nm, and a pressure resolution of 300 Pa was demonstrated in practice. The presented design and fabrication technique offers a means of simple and low-cost disposable pressure sensor production. 相似文献
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Ilshat M. Sakhautdinov Rauilya N. Malikova Yulya N. Biglova Rail A. Khusnutdinov Aynur M. Gumerov Edvard M. Khamitov Sergey P. Ivanov Marat S. Yunusov 《Journal of the Iranian Chemical Society》2018,15(9):1975-1985
New cyclopentene-fused [C60]-fullerene derivatives containing terpene moieties have been synthesized by [3?+?2]-addition to fullerene C60. All obtained products were fully characterized by 1H- and 13C-NMR, IR, and MS. The electrochemical properties have been studied by cyclic voltammograms (CV), combined with absorption spectra, which are consistent with those obtained from density functional theory (DFT) calculations. It was found that all fulleropyrrolidines showed very similar absorption spectra, orbital energies, in which electron densities in both the LUMO and HOMO are mainly located on the fullerene cage, suggesting that C60 act as the acceptor. All the compounds exhibited good thermal stability. All determined characteristics of fullerene conjugates were compared to [6,6]-phenyl-C61-butyric acid methyl ester ([60]PCBM), a popular fullerene-containing compound. 相似文献
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Edvard Phragmén 《Acta Mathematica》1885,7(1):43-48
Ohne Zusammenfassung 相似文献