Search results for "FOUNDATION"
showing 10 items of 256 documents
Development of a Bioaerosol single particle detector (BIO IN) for the Fast Ice Nucleus CHamber FINCH
2010
Abstract. In this work we present the setup and first tests of our new BIO IN detector. This detector was constructed to classify atmospheric ice nuclei (IN) for their biological content. It is designed to be coupled to the Fast Ice Nucleus CHamber FINCH. If one particle acts as an ice nucleus, it will be at least partly covered with ice at the end of the development section of the FINCH chamber. The device combines an auto-fluorescence detector and a circular depolarization detector for simultaneous detection of biological material and discrimination between water droplets, ice crystals and non activated large aerosol particles. The excitation of biological material with UV light and analy…
Estimation of the Repeatedly-Projected Reduced Density Matrix under Decoherence
2007
Decoherence is believed to deteriorate the ability of a purification scheme that is based on the idea of driving a system to a pure state by repeatedly measuring another system in interaction with the former and hinder for a pure state to be extracted asymptotically. Nevertheless, we find a way out of this difficulty by deriving an analytic expression of the reduced density matrix for a two-qubit system immersed in a bath. It is shown that we can still extract a pure state if the environment brings about only dephasing effects. In addition, for a dissipative environment, there is a possibility of obtaining a dominant pure state when we perform a finite number of measurements.
Covariant foundation of heavy hadron decays
1991
Abstract I present a covariant formulation of heavy hadron decays in the formal limit of MQ → ∞. This allows for an elegant way to implement the symmeteries found by Isgur and Wise in this limit. I also discuss a Bloch-Nordsieck formulation of this limit and leading log corrections.
Oscillations of the purity in the repeated-measurement-based generation of quantum states
2008
Repeated observations of a quantum system interacting with another one can drive the latter toward a particular quantum state, irrespectively of its initial condition, because of an {\em effective non-unitary evolution}. If the target state is a pure one, the degree of purity of the system approaches unity, even when the initial condition of the system is a mixed state. In this paper we study the behavior of the purity from the initial value to the final one, that is unity. Depending on the parameters, after a finite number of measurements, the purity exhibits oscillations, that brings about a lower purity than that of the initial state, which is a point to be taken care of in concrete appl…
Hierarchy and dynamics of trace distance correlations
2013
We define and analyze measures of correlations for bipartite states based on trace distance. For Bell diagonal states of two qubits, in addition to the known expression for quantum correlations using this metric, we provide analytic expressions for the classical and total correlations. The ensuing hierarchy of correlations based on trace distance is compared to the ones based on relative entropy and Hilbert-Schmidt norm. Although some common features can be found, the trace distance measure is shown to differentiate from the others in that the closest uncorrelated state to a given bipartite quantum state is not given by the product of the marginals, and further, the total correlations are s…
Shape Optimization in Contact Problems. 1. Design of an Elastic Body. 2. Design of an Elastic Perfectly Plastic Body
1986
The optimal shape design of a two dimensional body on a rigid foundation is analyzed. The problem is how to find the boundary part of the body where the unilateral boundary conditions are assumed in such a way that a certain energy integral (total potential energy, for example) will be minimized. It is assumed that the material of the body is elastic. Some remarks will be given concerning the design of an elastic perfectly plastic body. Numerical examples will be given.
BEF Analogy for Concrete Box Girder Analysis of Bridges
2010
<p>Box girder, due to its high torsional stiffness, is very appropriate for railway and highway long- medium span bridges. This type of cross section, subjected to transversely non-uniform loads, present warping and distortion phenomena. Accurate but time-consuming numerical procedures are available for determination of further strains and stresses caused by cross-section deformation. In this paper warping and distortion of box girders is evaluated through BEF analogy, by writing a 4th order differential equation. The problem is solved for practical cases of box girders by considering internal diaphragms stiffness. Graphs are supplied to designers and main design parameters affecting …
Piano di Gestione UNESCO Isole EOLIE
2008
Nel Piano di gestione del sito UNESCO Isole Eolie sono definiti i criteri e le modalità per realizzare contemporaneamente l’obiettivo della tutela di un bene e uno sviluppo locale sostenibile. Il Piano contiene una mappatura dei Beni Culturali e Ambientali e Naturalistici, descrivendo un sistema territorio sotto il profilo economico-ambientale che contiene: - L’inquadramento storico, economico e antropologico del sito, l’uso finora fatto, i fattori di incidenza sui beni ambientali e culturali; - L’inquadramento attuale del sito, attraverso un’analisi degli strumenti legislativi e amministrativi e della loro conformità; - L’analisi dei processi produttivi critici e le relative interazioni co…
Extensible Wind Towers
2014
The diffusion of wind energy generators is restricted by their strong landscape impact. The PERIMA project is about the development of an extensible wind tower able to support a wind machine for several hundred kW at its optimal working height, up to more than 50 m. The wind tower has a telescopic structure, made by several tubes located inside each other with their axis in vertical direction. The lifting force is given by a jack-up system confined inside a shaft, drilled below the ground level. In the retracted tower configuration, at rest, tower tubes are hidden in the foundation of the telescopic structure, located below the ground surface, and the wind machine is the only emerging part …
Fundacje zakładane przez osoby prawne kościoła katolickiego w Polsce a fundacje pobożne
2013
Przedmiotem artykułu jest analiza statusu prawnego fundacji zakładanych przez osoby prawne Kościoła katolickiego, o których mowa w art. 26 konkordatu między Stolicą Apostolską i Rzecząpospolitą Polską z 1993 r. i art. 58 ustawy z dnia 17 maja 1989 r. o stosunku Państwa do Kościoła Katolickiego w Rzeczypospolitej Polskiej (fundacje kościelne) oraz pobożnych fundacji, o których mowa w przepisach Kodeksu Prawa Kanonicznego z 1983 r. Ponadto w artykule poruszono zagadnienie wpływu systemu prawa polskiego i systemu prawa kanonicznego na działalność wymienionych fundacji. Przeprowadzone analizy prowadzą do wniosku, że fundacje zakładane przez osoby prawne Kościoła katolickiego na forum państwowym…