Suppose D is a bounded, connected, open set in Rn and f is a smooth function on Rn with support in D. We study the recovery of f from the mean values of f over spheres centered on a part or the whole boundary of D. For strictly convex D, we prove uniqueness when the centers are restricted to an open subset of the boundary. We provide an inversion algorithm (with proof) when the mean values are ...

Due to their low number of biased components, algorithmic A/D converters are often used in low power implementations. This paper describes an algorithm developed at the Institute of Microtechnology (IMT) which allows extending performances of cyclic RSD converters, without greatly impairing its benefits (reduced silicon area, low consumption). To achieve a Total Harmonic Distortion + Noise (THD...

We describe the engineering of the electromagnetic vacuum in a 2D–3D photonic bandgap (PBG) hetero-structure. This facilitates the development of novel active devices and the observation of novel quantum electrodynamic phenomena. We consider a specific architecture suitable as an all-optical micro-transistor capable of novel ultra-fast response with low switching power requirements. This relies...

phase inversion in liquid-liquid dispersions corresponds to the transitional boundary between oil-in-aqueous dispersion and aqueous-in-oil dispersion. a theoretical model based on simple assumptions was proposed to predict phase inversion point, ambivalence region and the hysteresis effect of inversion. experimental data from the literature were used to validate the model and results were compa...

this paper presents design and construction of an automatic moldboard profilograph by substituting an optical sensor and a control system together with its evaluation. the modified profilograph is an electro mechanical apparatus in which a micro switch and a dc motor was replaced with an optical sensor and a control system for revolution of a dc motor. thereby, the considered surface is measure...

Carnitine, a structurally choline-like metabolite, has been used to increase athletic performance, although its effects on neuromuscular transmission have not been investigated. It is present in skeletal muscle and its plasma levels are about 30 to 90 micro M. Using rat phrenic nerve diaphragm preparations indirectly and directly stimulated with high rate pulses, D-carnitine (30 and 60 micro M)...

Abstract This work communicates recent measurements of CN in laser-induced plasma. The main goals and objectives comprise (a) exploring measurement using optical emission spectroscopy breakdown plasma; (b) determining the effects shockwave for time delays order 1 μs; (c) evaluating spatial distribution signals; (d) inferring temperature distribution; (e) associating recorded shadowgraphs with l...