We present first results of a survey being made in a broad-band 6.75 m filter using the ISOCAM infrared camera in its parallel mode at 6" resolution. So far we have analysed a sky area of 1:375 deg2 down to a limiting flux of 5 mJy and detected a total of 287 objects. The final survey will cover a sky area of 33 deg2, most of which will be done in staring mode, to which we have restricted ourse...

We consider compactifications of type II string theory in which a d-dimensional torus is fibered over a base X. In string theory, the transition functions of this fibration need not be simply diffeomorphisms of T d but can involve elements of the T-duality group Spin(d, d,Z). We precisely define the notion of a T-fold with NSNS flux. Given such a T-fold, we define the Z2-graded cohomology theor...

We suggest a rigorous definition of the pathwise flux across the boundary of a bounded open set for transient finite energy diffusion processes. The expectation of such a flux has the property of depending only on the current velocity v, the nonsymmetric (with respect to time reversibility) part of the drift. In the case where the diffusion has a limiting velocity we define the asymptotic flux ...

We study Hamilton-Jacobi equations on networks in the case where Hamiltonians are quasi-convex with respect to the gradient variable and can be discontinuous with respect to the space variable at vertices. First, we prove that imposing a general vertex condition is equivalent to imposing a specific one which only depends on Hamiltonians and an additional free parameter, the flux limiter. Second...

In this paper we develop a new limiter for linear reconstruction on non-coordinatealigned meshes in two space dimensions, with focus on Cartesian embedded boundary grids. Our limiter is inherently two-dimensional and linearity preserving. It separately limits the x and y components of the gradient, as opposed to a scalar limiter which limits all components simultaneously with one scalar. The li...

We obtain some exact solutions in the context of solitons, for heat conduction with inertia along a cylinder whose exchange environment is non-linear function difference temperatures and environment, due to flux-limiter behavior exchange. study consequences transfer information wire, we compare situation analogous solitons found nonlinear lateral radiative studied previous papers. also find fur...

In this paper, we establish the exponential BV stability of general systems discretized scalar conservation laws with positive speed. The focus is on numerical approximation such using a wide class slope limiter schemes built from upwind monotone flux. proof based Lyapunov analysis taken continuous theory (Coron et al. in J Differ Equ 262(1):1–30, 2017) and careful use Harten formalism.

High-order numerical diffusion is commonly used in numerical models to provide scale selective control over small-scale noise. Conventional high-order schemes have undesirable side effects, however: they can introduce noise themselves. Two types of monotonic high-order diffusion schemes are proposed. One is based on flux correction/limiting on the corrective fluxes, which is the difference betw...

Influence of distributed generation systems in the distribution systems can increase the level of short-circuit current. The effectiveness of distributed generation systems is affected by the size, location, type of distributed generation systems technology, and the methods of connecting to distribution systems. Wind turbine system is the examples of distributed generation source. Not only does...