recently, abbasbandy and asady have been proposed a modificationof the distance based approach, namely ``sign distance method''.however, in this paper, it is shown that this method has some drawbacks, i.e.,the result is not consistent with human intuition for specialcases and this method cannot always logically infer rankingorder of the images of the fuzzy numbers. in this paper, wepresent a re...

In previous joint work with A. Castro and J. Cossio (See 5]), it was shown that a superlinear boundary value problem has at least 3 nontrivial solutions, one of which changes sign exactly-once. In this paper we provide an analogous result when the nonlinearity does not pass through the origin; this case includes the so-called semiposi-tone case, i.e., where the nonlinearity is negative at zero....

In this paper we introduce an extension of the Fast Marching Method introduced by Sethian [6] for the eikonal equation modelling front evolutions in normal direction. The new scheme can deal with a time-dependent velocity without any restriction on its sign. This scheme is then used for solving dislocation dynamics problems in which the velocity of the front depends on the position of the front...

An experimental method is demonstrated that allows determination of the ratio between the electric (E1) and magnetic (M1) transition dipole moments in the A-X band of OH, including their relative sign. Although the transition strengths differ by more than 3 orders of magnitude, the measured M1-to-E1 ratio agrees with the ratio of the ab initio calculated values to within 3%. The relative sign i...

1) Definition of margin γ We replace the ‖ · ‖∞ norm in the definition of the margin, with infx∈X | · |. The correction definition is given as below. The collection PXY is indexed by a margin parameter γ, which denotes the minimum width of a decision set or separation between the component support sets Ck. The margin γ is assigned a positive sign if there is no overlap between components, other...

STUDY DESIGN Retrospective diagnostic study. PURPOSE To define a new radiological sign, "Baltalimani sign," in severe angular kyphosis (SAK) and to report its relationship with the risk of neurological deficits and deformity severity. OVERVIEW OF LITERATURE Baltalimani sign was previously undefined in the literature. METHODS We propose Baltalimani sign as the axial orientation of the vert...

A fundamental building block for nanophotonics is the ability to achieve negative refraction of polaritons, because this could enable the demonstration of many unique nanoscale applications such as deep-subwavelength imaging, superlens, and novel guiding. However, to achieve negative refraction of highly squeezed polaritons, such as plasmon polaritons in graphene and phonon polaritons in boron ...

We present a new Monte Carlo algorithm for simulating quantum spin systems which is able to suppress the negative sign problem. This algorithm has only a linear complexity in the lattice size used for the simulation. A general description and a rigorous proof of its correctness is given. Its efficiency is tested on a simple 2-dimensional fermionic model. For this model we show that our algorith...

where ρ ≥ 1 is a mass parameter corresponding to a bare fermion mass mb = m(ρ − 1), and Q is the hermitian Wilson operator with a negative mass parameter −m. Note that γ5 sign(Q) is unitary. We can also define a hermitian overlap operator Dh = γ5Du. Both operators are normal, i.e. they commute with their adjoints. We will approximate the matrix sign function using the Zolotarev partial fraction...

We describe theoretically the acoustoconductance (AC) of quantum contacts. One characteristic of a contact which distinguishes it from a long, uniform wire is a strong, energy-dependent transmission probability. This has several consequences for AC. Electrons which are forward scattered by phonons can contribute to AC and, furthermore, AC can have positive sign (i.e. a conductance-increase unde...