Zobrazeno 1 - 10
of 50
pro vyhledávání: '"H, Haucke"'
Autor:
Xiao Liu, Harry J. Simpson, Brian H. Houston, H. Haucke, Douglas M. Photiadis, Jeffrey W. Baldwin, Joseph F. Vignola
Publikováno v:
Materials Science and Engineering: A. :389-392
In order to understand the consensus that mechanical loss of an oscillator increases as its size decreases, we studied the internal friction of a 1.5 μm thick micro-mechanical oscillator with laser Doppler vibrometry. We separated the loss due to at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b0c7cdf6c6784cfd176e848055f199e
https://doi.org/10.1016/j.msea.2008.10.065
https://doi.org/10.1016/j.msea.2008.10.065
Autor:
H. Haucke, Robert E. Ecke
Publikováno v:
Journal of Statistical Physics. 54:1153-1172
Thermal measurements on a converting dilute3He-superfluid4He solution in the quasiperiodic regime show a transition from a mode-locked periodic state to chaotic time dependence via intermittency. The type of intermittency is discussed in the context
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b9201d9cb3d35907c651d61c0614b05
https://doi.org/10.1007/bf01044708
https://doi.org/10.1007/bf01044708
Publikováno v:
Physical Review Letters. 53:2090-2093
Measurements on a convecting dilute $^{3}\mathrm{He}$-superfluid-$^{4}\mathrm{He}$ solution show a transition from periodic to chaotic behavior via intermittency. In a region near but below the onset of intermittency, injection of external noise grea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e71c6f801eb7b657577b51bb2d5a103d
https://doi.org/10.1103/physrevlett.53.2090
https://doi.org/10.1103/physrevlett.53.2090
Publikováno v:
Physical Review Letters. 58:499-502
We have discovered a state of superfluid turbulence in convecting dilute solutions of /sup 3/He in superfluid /sup 4/He which has many features of superfluid turbulence in straight channels. The characteristics of this state, determined by precise me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::081705029765a7ba42463be1d0b85a4c
https://doi.org/10.1103/physrevlett.58.499
https://doi.org/10.1103/physrevlett.58.499
Publikováno v:
Physical Review A. 33:1870-1878
The steady-state and dynamic properties of the transition to oscillatory convection in a low-Prandtl-number fluid, dilute $^{3}\mathrm{He}$ in superfluid $^{4}\mathrm{He}$, are presented. Critical slowing down is observed and characterized by a pheno
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c54285037a359044303c43142cb32c26
https://doi.org/10.1103/physreva.33.1870
https://doi.org/10.1103/physreva.33.1870
Autor:
Robert E. Ecke, H. Haucke
Publikováno v:
Physica D: Nonlinear Phenomena. 25:307-329
We have experimentally studied the transition to chaos in a thermally convecting dilute solution of 3 He in superfluid 4 He. Two natural oscillatory instabilities are found in our geometry. Mode-locking is observed over a range of Rayleigh and Prandt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95735f120106db9885803d993a95ba29
https://doi.org/10.1016/0167-2789(87)90106-0
https://doi.org/10.1016/0167-2789(87)90106-0
Autor:
Yoshiteru Maeno, H. Haucke
Publikováno v:
Physica D: Nonlinear Phenomena. 7:69-72
Observations have been made on thermal convection below 1 K in a dilute solution of 3He in superfluid 4He contained in a cylindrical cell of aspect ratio Γ=1.20. Complicated oscillatory phenomena were observed with a high degree of reproducibility u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d84df950279b37d1b4ce8ad31b370ecc
https://doi.org/10.1016/0167-2789(83)90116-1
https://doi.org/10.1016/0167-2789(83)90116-1
Publikováno v:
Physical Review Letters. 53:1567-1570
The oscillatory temperature amplitude of a low--Prandtl-number fluid in Rayleigh-Benard convection is shown to exhibit critical slowing down near the onset of oscillatory convection. The data are analyzed in the context of a mean-field Landau-Hopf eq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9b2f1f8f011e8368e3ff8d42af56ebb
https://doi.org/10.1103/physrevlett.53.1567
https://doi.org/10.1103/physrevlett.53.1567
Publikováno v:
Physical Review Letters. 54:340-342
The oscillatory instability of Rayleigh-B\'enard convection is studied in a solution of 1.46% $^{3}\mathrm{He}$ in superfluid $^{4}\mathrm{He}$ for the Prandtl-number range $0.045l~\ensuremath{\sigma}l~0.15$. The observed behaviors of the oscillatory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b439aa1fba3dd5a5ba42773d30e121d5
https://doi.org/10.1103/physrevlett.54.340
https://doi.org/10.1103/physrevlett.54.340
Publikováno v:
Review of Scientific Instruments. 54:946-948
Details of design and construction of a simple and rugged thermocouple differential thermometer are presented. Gold +0.03 at. % iron wire is used, with niobium leads connected to a SQUID. It is demonstrated that at 1 K the response time is about 15 m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::644c7d06c6a26742ff9391ef45a49503
https://doi.org/10.1063/1.1137507
https://doi.org/10.1063/1.1137507