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991.
Wolfgang Sander 《Results in Mathematics》1994,26(3-4):372-381
In this paper we determine the regular solutions of a generalized fundamental equation of information 相似文献
992.
993.
Using a right-angled magnetic air prism, we have achieved a separation of ~10 arcsec between ~2 arcsec wide up and down-spin peaks of 5.4 Å neutrons. The polarised neutron option has thus been introduced into the SUSANS instrument. Strongly spindependent SUSANS spectra have been observed over ±1.3 × 10?4 Å?1 range for several magnetic alloy samples. Spatial pair-distribution functions for the up and down-spins as well as the nuclear and magnetic scattering length density distributions in the micrometer domain, have been deduced from these spectra. 相似文献
994.
Wolfgang Ebeling 《manuscripta mathematica》2002,107(3):271-282
A relation is proved between the Poincaré series of the coordinate algebra of a two-dimensional quasihomogeneous isolated
hypersurface singularity and the characteristic polynomial of its monodromy operator. For a Kleinian singularity not of type
A
2
n
, this amounts to the statement that the Poincaré series is the quotient of the characteristic polynomial of the Coxeter element
by the characteristic polynomial of the affine Coxeter element of the corresponding root system. We show that this result
also follows from the McKay correspondence.
Received: Received: 25 October 2001 / Revised version: 19 November 2001 相似文献
995.
Formerly developed inside the BASF company for inhouse use, Spec-Info is now available to the public due to a project of the German Federal Ministry of Research and Technology (BMFT). The system is meant as a supporting tool for interpreting spectroscopists elucidating the structure of chemical compounds. SpecInfo supports the synergistic use of NMR-, IR- and MS-spectra for the correlation between structure and spectral patterns, based on a large spectroscopic databank. Additionally, statistical evaluations on this database are used to link spectral patterns to (sub-) structures responsible for these patterns. 相似文献
996.
997.
Carl-Dieter Zachmann Wolfgang Heiden Micheal Schlenkrich Jürgen Brickmann 《Journal of computational chemistry》1992,13(1):76-84
An algorithm for the calculation of local and global curvatures of molecular surfaces is presented. The analysis is based on a surface representation as a set of points in 3-D space (“dotted surface” representation). The surface data are used to subdivide the surfac into domains with different curvatures. All domains are characterized by a reference point with a corresponding curvature profile specifiying the topological properties in its neighborhood. The curvature profiles provide a method for a systematic comparison of the shapes of different molecules. Such a strategy is important for the treatment of molecular recognition problems. The enzyme-inhibitor complex trypsin/BPTI was chosen to demonstrate the scopes of the method. 相似文献
998.
999.
1000.
A stationary queueing system is described in which a single server handles several competing Poisson arrival streams on a first-come first-served basis. Each class has its own generally distributed service time characteristics. The principal result is the Laplace-Stieltjes transform, for each class, of the interdeparture time distribution function. Examples are given and applications are discussed. 相似文献