This paper introduces a link-type tracked vehicle, which is developed for potential applications such as Ž re Ž ghting, handicapped assistance and mine detection in various hazardous environments. The vehicle consists of three parts — front frame, rear frame and body. The front frame is connected to the rear frame by a rotational passive adaptation mechanism, which is the driving mechanism of t...

Two Bessel sequences are orthogonal if the composition of the synthesis operator of one sequence with the analysis operator of the other sequence is the 0 operator. We characterize when two Bessel sequences are orthogonal when the Bessel sequences have the form of translates of a finite number of functions in L(R). The characterizations are applied to Bessel sequences which have an affine struc...

The Schur-Horn Theorem states that there exists a self-adjoint matrix with a given spectrum and diagonal if and only if the spectrum majorizes the diagonal. Though the original proof of this result was nonconstructive, several constructive proofs have subsequently been found. Most of these constructive proofs rely on Givens rotations, and none have been shown to be able to produce every example...

Description iogics (aiso caiied terminoiogicai iogics, or concept ianguagesj are fragments of first-order logic that provide a formal account of the basic features of frame-based systems. However, there are aspects of frame-based systems-such as nonmonotonic reasoning and procedural rules-that cannot be characterized in a standard first-order framework. Such features are needed for real applica...

It may be that there is no way to axiomatize an intensional logic without recourse to one or more iterative axioms; then I call that logic iterative. But many familiar logics can be axiomatized by means of non-iterative axioms alone; these logics I call non-iterative. A frame, roughly speaking, is a partial interpretation for an intensional language. It provides a set 1, all subsets of which ar...

This report outlines the results of various experiments to model the probability of an area-frame farm not being on the census mailing list (NML) using covariates such as total sales, type of farm, acreage, various operator characteristics (gender, Hispanic status, race, and whether the primaryl occupation of the principal operator is farming), number (if any) of equine on the farm, and, option...

We establish a regular sampling theory in the range of analysis operator continuous frame having unitary structure. The structure is related with representation locally compact abelian group on separable Hilbert space. samples are defined by means suitable discrete convolution systems which generalize some usual settings; here that taken at countable subgroup.

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