Oscillations, Waves, and Interactions - GWDG

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204 W. Eisenmenger and U. Kaatze Figure 6. Steepening and focussing of shock wave profiles in dependence of the distance z from the generator [20]. The signals, produced with a self-focussing electromagnetic generator, have been recorded with the aid of a fibre-optic probe hydrophone [21].
Wide-focus low-pressure ESWL 205 Figure 7. Scheme of crater-like fragmentation erosion of larger stones by pressure inhomogeneities of narrow-focus shock waves (-6-dB width of the focus between 2 and 6 mm). For both above fragmentation mechanisms, which are related to the positive pressure pulse, no indications for noticeable side effects, such as tissue damage and vessel injury, exist. The situation is quite different with the action of the negative part of the shock wave profile. In addition to the direct action on the stones, the negative pressure causes cavitation in the aqueous environment and also in the liquid enclosed in microcracks [24] and cleavage interfaces of the calculi (Fig. 9). Strong evidence for significant contributions of fragmentation by cavitation exist [25]. Cavitation erosion is especially observed at the anterior and posterior side of stones [22,23]. If, however, cavitation occurs in adjacent tissues or vessels severe damage may result because, after the low pressure period of some microseconds duration, cavitation bubbles of some millimetre size are formed within some hundred microseconds (Fig. 10). These bubbles collapse rapidly, producing locally pressures of many MPa which are accompanied by high temperatures, sonoluminescence and emission of secondary shock waves [26]. Cells are ruptured upon bubble collapse [27]. Figure 8. Principle of spalling by tensile stress in the reflected wave within the stone (Hopkinson effect). 4 Cleavage by squeezing Crater-like stone erosions, spalling of material by tensile stress within the stone, in particular the Hopkinson effect, and cavitation are considered for a long time the dominating causes of fragmentation. Each of the mechanisms has been observed under certain conditions. The relative importance of either of the mechanisms, however, is still unclear presently. More recently it has been shown both, experimentally and theoretically [10], that binary fragmentation by quasistatic squeezing is most efficient in ESWL. Squeezing leading to stone cleavage involves shock wave focus diameters
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Thomas Kurz, Ulrich Parlitz, and Ud
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erschienen im Universitätsverlag G
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Bibliographische Information der De
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iv Contents Laser speckle metrology
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Oscillations, Waves and Interaction
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Applied physics at the “Dritte”
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noise component [GNE] 5 4 3 2 1 can
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3.4 Transfer to running speech Spee
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3.4.2 Analysis of running speech Sp
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Speech research 33 Area [Pixels] 60
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Speech research 35 [13] D. Michaeli
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Specific signal types in hearing re
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74 D. Ronneberger et al. Mechel fou
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76 D. Ronneberger et al. (flow velo
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78 D. Ronneberger et al. |t + acous
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80 D. Ronneberger et al. Figure 6.
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82 D. Ronneberger et al. Figure 8.
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84 D. Ronneberger et al. (flow velo
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86 D. Ronneberger et al. R / L ⋅
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88 D. Ronneberger et al. e. g. temp
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90 D. Ronneberger et al. 3.2 Qualit
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92 D. Ronneberger et al. As usual t
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94 D. Ronneberger et al. (wavenumbe
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96 D. Ronneberger et al. powers of
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98 D. Ronneberger et al. an increas
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100 D. Ronneberger et al. The term
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102 D. Ronneberger et al. Neverthel
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104 D. Ronneberger et al. [4] J. Br
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106 D. Ronneberger et al. strömung
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108 D. Guicking synchronised tuning
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110 D. Guicking primary noise micro
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112 D. Guicking primary sensor desi
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114 D. Guicking by an antiphase sou
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116 D. Guicking R L C C + + 1 1−C
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118 D. Guicking More involved than
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120 D. Guicking In the 1980s, longi
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122 D. Guicking with electrodynamic
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124 D. Guicking 3.6 Noise reduction
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126 D. Guicking the turbulence of a
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128 D. Guicking References [1] Lord
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130 D. Guicking [44] Falcke, H.,
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132 D. Guicking [84] J. Melcher,
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134 D. Guicking [125] D. Heyland et
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136 D. Guicking [166] S. Zommer et
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138 D. Guicking [212] M. L. Post an
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140 W. Lauterborn et al. liquid κ
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142 W. Lauterborn et al. Figure 2.
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144 W. Lauterborn et al. nator, and
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146 W. Lauterborn et al. by types a
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148 W. Lauterborn et al. bubble rad
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254 A. Vogel, I. Apitz, V. Venugopa
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260 K. D. Hinsch Generally, any of
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262 K. D. Hinsch Figure 1. Monitori
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264 K. D. Hinsch Figure 3. ESPI stu
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266 K. D. Hinsch Figure 4. Deterior
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268 K. D. Hinsch Often, in-plane mo
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270 K. D. Hinsch Figure 7. Optical
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272 K. D. Hinsch Figure 9. Humidity
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274 K. D. Hinsch locations that tak
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276 K. D. Hinsch Figure 13. Map of
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278 K. D. Hinsch References [1] D.
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280 Schreiber not moving along with
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282 Schreiber These properties made
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284 Schreiber Figure 3. The G ring
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286 Schreiber Rotation Rate [rad/s]
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288 Schreiber and it is currently b
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290 Schreiber n1 D A B n Figure 8.
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292 Schreiber Beamwalk [µm] 80.0 7
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294 Schreiber ∆ Perimeter [*10e12
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296 Schreiber and the last term acc
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298 Schreiber Δf [µHz] 100 50 0 -
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300 Schreiber formation of a new wo
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302 Schreiber PSD [*10 16 (rad/s) 2
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304 Schreiber 7.2 The ring laser co
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306 Schreiber Demodulator Signal [V
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308 Schreiber Est. Phase Vel. (m/s)
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310 Schreiber [18] V. Frede and V.
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312 Martin Dressel tice is reduced
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314 Martin Dressel Metallic whisker
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316 Martin Dressel (a) (b) (c) CH 3
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318 Martin Dressel 3.1 Charge densi
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320 Martin Dressel Absorptivity σ
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322 Martin Dressel brought a confir
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324 Martin Dressel a charge disprop
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326 Martin Dressel Conductivity 70
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328 Martin Dressel Reflectivity Con
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330 Martin Dressel References [1] M
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332 Martin Dressel and L. Montgomer
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334 R. Pottel, J. Haller and U. Kaa
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368 U. Kaatze and R. Behrends with
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370 U. Kaatze and R. Behrends Figur
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386 U. Kaatze and R. Behrends of th
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398 U. Kaatze and R. Behrends [6] M
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400 U. Kaatze and R. Behrends [49]
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402 U. Kaatze and R. Behrends (2002
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404 U. Kaatze and R. Behrends Copyr
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406 U. Parlitz here chaos control m
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408 U. Parlitz Figure 2. Amplitude
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410 U. Parlitz 4 10 5 5 (a) (b) (c)
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412 U. Parlitz two-parameter studie
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414 U. Parlitz GN differential opti
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416 U. Parlitz P 1 P 2 P 3 S P 1 P
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418 U. Parlitz Figure 9. Correlatio
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420 U. Parlitz series” where for
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422 U. Parlitz current state future
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424 U. Parlitz tion [69] of two uni
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426 U. Parlitz LD1 LD2 M BS1 BS2 OD
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428 U. Parlitz with a clear tendenc
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430 U. Parlitz (a) y (c) y 40 20 È
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432 U. Parlitz [29] P. Grassberger,
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434 U. Parlitz [76] H. D. I. Abarba
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436 S. Lakämper and C. F. Schmidt
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462 Index basin of attraction, 144
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464 Index cone bubble structure, 19
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466 Index turbulent, 111, 126 fluct
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468 Index LPC, 29 luminescence of b
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470 Index peak factor, 38, 43 Peier
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472 Index laser-induced bubble, 152
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474 Index ultraharmonic resonance,
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