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971.
972.
The title compound is synthesized by reaction of FeCl3·6H2O with liquid NH3 and characterized by single crystal XRD. 相似文献
973.
A spectral representation for regularly varying Lévy processes with index between one and two is established and the properties of the resulting random noise are discussed in detail, giving also new insight in the L 2-case where the noise is a random orthogonal measure. This allows a spectral definition of multivariate regularly varying Lévy-driven continuous time autoregressive moving average (CARMA) processes. It is shown that they extend the well-studied case with finite second moments and coincide with definitions previously used in the infinite variance case when they apply. 相似文献
974.
Consider an irreducible polynomial of the form f(X) = X p ? aX ? b ∈ 𝔽[X] and α a root of f(X), where 𝔽 is a field of characteristic p. In 1975, F.J. Sullivan stated a lemma that provides the trace, taken with respect to the extension 𝔽(α)/𝔽, of elements of the form α n , where 0 ≤ n ≤ p 2 ? 1. We present a generalization of Sullivan's Lemma and provide another proof of the original lemma. We explain how computing Tr(α n ) for n < p r can be reduced to computing the traces Tr(α m ) for all m ≤ r(p ? 1). 相似文献
975.
The deformation in polycrystals is often heterogenous, e.g. due to grain size dependent hardening. In a semi-analytical representative volume element (RVE), a log-normal distributed grain size is assumed together with a grain size dependent local plastic behavior. The numerical results are well approximated by a simple analytical expression. The effect of the homogenization comparison stiffness on the transient behaviour is explained using a simplified localization equation. (© 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
976.
The present contribution deals with the atomistic modelling of ferroelectric barium titanate. In this context a core-shell model is implemented in a Molecular Static algorithm. Furthermore, Coulomb forces are simulated by the Wolf summation method in order to allow for a small cut off radius. We discuss the core-shell model, molecular statics as a finite elements approach and present some numerical results. (© 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
977.
In this report we present a method to identify functional artificial lantipeptides. In vitro translation coupled with an enzyme-free protocol for posttranslational modification allows preparation of more than 10(11) different lanthionine containing peptides. This diversity can be searched for functional molecules using mRNA-lantipeptide display. We validated this approach by isolating binders toward Sortase A, a transamidase which is required for virulence of Staphylococcus aureus. The interaction of selected lantipeptides with Sortase A is highly dependent on the presence of a (2S,6R)-lanthionine in the peptide and an active conformation of the protein. 相似文献
978.
Josephine McAndrew Stephan Paul Ralf Emmerich Ralf Engels Peter Fierlinger Mirko Gabriel Erwin Gutsmiedl Johannes Mellenthin Johannes Sch?n Wolfgang Schott Andreas Ulrich Florian Grüenauer Anton R?hrmoser 《Hyperfine Interactions》2012,207(1-3):13-17
Frozen solution samples were made from gold chloride and KAu(CN)2 solvated with TBP/xylene. The 197Au M?ssbauer parameters were similar to those same species as frozen solutions or adsorbed onto activated carbon. Solvated samples from EuO dissolved in HCl or H2SO4 and frozen gave characteristic Eu(III) spectra. All the spectra were consistent with bonding to the TBP being through hydronium ions or water molecules. 相似文献
979.
980.
Florian Pop 《Inventiones Mathematicae》2012,187(3):511-533
Recall that a program initiated by Bogomolov in 1990 aims at reconstructing function fields K|k with td(K|k)>1 and k algebraically closed from the maximal pro-ℓ abelian-by-central Galois group Pc K\Pi ^{\hbox to1pt{}{\rm c}_{\phantom {g}}}_{K} of K, where ℓ is any prime number ≠char(k). In this paper we complete that program in the case k is an algebraic closure of a finite field. 相似文献