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541.
Ohne Zusammenfassung 相似文献
542.
E. Hafer H. -J. Lenz F. E. Münnich H. Müller-Merbach D. Baur Ch. Schneeweiβ F. Ferschl G. Trenkler V. Steinecke B. E. Turner H. Kästing G. Waschek 《Mathematical Methods of Operations Research》1974,18(1):79-88
Ohne Zusammenfassung 相似文献
543.
544.
Claudio Lenz Cesar 《Hyperfine Interactions》1997,109(1-4):293-304
I review the results and techniques used by the MIT H↑ group to achieve a fractional resolution of 2 parts in 1012 in the 1S–2S transition in hydrogen [Cesar, D. Fried, T. Killian, A. Polcyn, J. Sandberg, I.A. Yu, T. Greytak, D. Kleppner
and J. Doyle, Two-photon spectroscopy of trapped atomic hydrogen, Phys. Rev. Lett. 77 (1996) 255.] With some improvements,
this system should deliver 100 times higher resolution with an improved signal count rate getting us closer to an old advertised
goal of a precision of 1 part in 1018. While these developments are very important for the proposed test of the CPT theorem through the comparison with anti-hydrogen,
some of the techniques used with hydrogen are not applicable to anti-hydrogen and I discuss some difficulties and alternatives
for the trapping and spectroscopy of anti-hydrogen.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
545.
Hanfried Lenz 《Archiv der Mathematik》1968,19(2):205-213
Ohne Zusammenfassung 相似文献
546.
547.
G. Adamus M. Kowalczuk Z. Jedli
ski A. Ballistreri T. Scherer R. W. Lenz 《Polymer Degradation and Stability》1995,50(3):269-276
Poly(methyl methacrylate-g-3-hydroxybutyrate) films were prepared from new graft polymers synthesised by an anionic grafting reaction of 3-butyrolactone (3-BL) on poly(methyl methacrylate) (PMMA). The resulting graft polymers form a transparent film of a one phase system, as revealed by DSC measurements. A plasticisation effect was observed for film samples containing the PBL grafted chains. This effect increased with increasing amount of PBL in the graft copolymer. The mechanical properties of the films were investigated, and thermal, hydrolytic and enzymatic degradation behaviours were evaluated. Disintegration of the films was observed during their hydrolytic degradation in phosphate buffer. 相似文献
548.
W. P. Loh K. Inderfurth M. Hollinger P. Hammann H. Meyer zu Selhausen H. Dellwing H. Späth H. -J. Lenz 《Mathematical Methods of Operations Research》1976,20(4):B168-B174
Ohne Zusammenfassung 相似文献
549.
G.L. Borchert D. Anagnostopoulos M. Augsburger C. Castelli D. Chatellard J.P. Egger P. El Khoury M. Elble H. Gorke D. Gotta P. Hauser P. Indelicato K. Kirch S. Lenz N. Nelms K. Rashid O.W.B. Schult Th. Siems L.M. Simons 《Hyperfine Interactions》2000,127(1-4):149-155
At the LEAR facility, CERN, antiprotonic Lα transitions in light elements have been investigated with a focussing crystal
spectrometer. The high resolution of the experiment allowed for the first time to resolve in
H the 23P0 state from the close lying states 23P2, 21P1, and 23P1. In
D the corresponding transitions were found to be more than an order of magnitude broader. To a large extent the results for
H support the meson exchange model.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
550.
Delone sets of finite local complexity in Euclidean space are investigated. We show that such a set has patch counting and
topological entropy zero if it has uniform cluster frequencies and is pure point diffractive. We also note that the patch
counting entropy vanishes whenever the repetitivity function satisfies a certain growth restriction.
相似文献