We apply the coupled cluster method to high orders of approximation and exact diagonalizations to study the ground-state properties of the triangular-lattice spin-s Heisenberg antiferromagnet. We calculate the fundamental ground-state quantities, namely, the energy e0, the sublattice magnetization Msub, the in-plane spin stiffness ρs and the in-plane magnetic susceptibility χ for spin quantum n...

To study which proteins of classical swine fever virus (CSFV) are able to confer protective immunity in swine, N-terminal autoprotease, viral core protein, and the three structural glycoproteins were expressed via vaccinia virus recombinants (VVR). CSFV proteins synthesized in cells infected with VVR showed migration characteristics on sodium dodecyl sulfate gels identical to those of their res...

In this tutorial we describe general approaches to deciding bisimilarity between vertices of (infinite) directed edge-labelled graphs. The approaches are based on a systematic search following the definition of bisimilarity. We outline (in decreasing levels of detail) how the search is modified to solve the problem for finite graphs, BPP graphs, BPA graphs, normed PA graphs, and normed PDA grap...

Employing electroreflectance (ER) spectroscopy, we have studied optical transitions in porous Si (PSi) with a thickness of 100±50 nm made from crystalline Si (c-Si) substrates with different resistivities, 4–10 Ωcm (p-), 0.1–1 Ωcm (p), and < 0.018 Ωcm (p+). The ER features observed at 1.1–2.8 eV in p+ PSi are analyzed with a simple effective mass approximation (EMA) model for confined electron-...

We define tensor product decompositions of E0-semigroups with a structure analogous to a classical theorem of Beurling. Such decompositions can be characterized by adaptedness and exactness of unitary cocycles. For CCR-flows we show that such cocycles are convergent. Introduction. A well-known theorem of Beurling characterizes invariant subspaces of the right shift on l(N) by inner functions in...

The encryption system E0, which is the encryption system used in the Bluetooth specification, is examined. In the current paper, a method of deriving the cipher key from a set of known keystream bits is given. The running time for this method depends on the amount of known keystream available, varying from O(2) if 132 bits are available to O(2), given 2 bits of known keystream. Although the att...

A lecture presented at the von Neumann symposium on Quantization and Nonlinear Wave Equations held at MIT in June, 1994. We describe the role of semigroups of endomorphisms of von Neumann algebras in algebraic formulations of quantum field theory, and present a summary of recent developments in the theory of E0-semigroups. 1991 Mathematics Subject Classification. Primary 46L40; Secondary 81E05.

In this work, the dependency of polarization (P) - electric field (E) loop area A lead free ferroelectrics Na0.5Bi0.5TiO3 (NBT), K0.5Bi0.5TiO3 (KBT), and Na0.25K0.25Bi0.5TiO3 (NKBT) on amplitude (E0) is studied. Based nature hysteresis with increasing E0, lnA versus lnE0 graph divided into three stages scaling exponents each stage are estimated. third stage, NBT, KBT, NKBT show different shapes...

The effect of unilateral hindlimb immobilization and subsequent free remobilization on mechanical properties of femur was examined in young adult rats. Right hindlimb of 17 weeks old male rats was immobilized for 2 weeks. Rats were sacrificed either directly after immobilization (E0) or after 4 weeks of free remobilization (E4). Mechanical properties in three-point bending as well as dry mass (...

Iterated Function Systems (IFSs) are among the best-known methods for constructing fractals. The sequence of pictures E0; E1; E2; : : : generated by an IFS fX; f1; f2; : : : ; ftg converges to a unique limit E , which is independent of the choice of starting set E0, but completely determined by the choice of the maps fi. Random context picture grammars (rcpgs) are a method of syntactic picture ...