Search results for "STIR"
showing 10 items of 426 documents
Connection between optimal control theory and adiabatic-passage techniques in quantum systems
2012
This work explores the relationship between optimal control theory and adiabatic passage techniques in quantum systems. The study is based on a geometric analysis of the Hamiltonian dynamics constructed from the Pontryagin Maximum Principle. In a three-level quantum system, we show that the Stimulated Raman Adiabatic Passage technique can be associated to a peculiar Hamiltonian singularity. One deduces that the adiabatic pulse is solution of the optimal control problem only for a specific cost functional. This analysis is extended to the case of a four-level quantum system.
Pues sois la Vida, y dulzura del hombre, y del Sol la Aurora; sed con Dios intercessora, de la Murta Virgen Pura
Com a tít. la primera estrofa, que es repeteix al final, donat que del tít. sols es poden llegir o intuir poques paraules: "[...] que se venera en su Real Monasterio Religio [...] termino de la Villa de Alzira, Reyno de Valencia" El full orlat Grav. xil. enmarcat de "N. S. de la Murta", flanquejat per gerros amb flors Text del goig a dues col. separades per banda
Gozos a la gloriosa Santa Marta virgen, huespeda de Christo, que se venera en su Hermita del Monasterio de Nuestra Señora de la Murta.
El full orlat Grav. xil. enmarcat de la santa, flanquejat per gerros amb flors El text del goig a dues col. separades per banda
Shear capacity in concrete beams reinforced by stirrups with two different inclinations
2014
Abstract A model for the estimation of shear capacity in Reinforced Concrete (RC) beams with web reinforcement is provided by introducing a generalization of classical plastic Nielsen’s model, which is based on the variable-inclination stress-field approach. The proposed model is able to predict the shear capacity in RC beams reinforced by means of stirrups having two different inclinations and longitudinal web bars. A numerical comparison with the results of experimental tests and those provided by a Finite Element Model (FEM) based on the well known theory of Modified Compression Field Theory (MCFT) is carried out for validating the robustness of the proposed model. Finally, a set of para…
Innovative user defined density profile approach to fsw of aluminium foam
2007
Metallic foams are one of the most exciting materials in the world of mechanical industry due to their reduced mass and the good mechanical, thermal and acoustic characteristics. Consequently, their application, is increasing day by day even with the important drawbacks that reduce their suitability and diffusion such as high manufacturing cost and difficulty in processing. An innovative approach is outlined in this paper that enables the production of complex shapes taking advantage of deformation processing and friction stir welding (FSW). The aim is to create customized tailored manufactured parts. The cellular construction of foams makes this approach rather challenging as the cell wall…
Restricted 123-avoiding Baxter permutations and the Padovan numbers
2007
AbstractBaxter studied a particular class of permutations by considering fixed points of the composite of commuting functions. This class is called Baxter permutations. In this paper we investigate the number of 123-avoiding Baxter permutations of length n that also avoid (or contain a prescribed number of occurrences of) another certain pattern of length k. In several interesting cases the generating function depends only on k and is expressed via the generating function for the Padovan numbers.
Generating restricted classes of involutions, Bell and Stirling permutations
2010
AbstractWe present a recursive generating algorithm for unrestricted permutations which is based on both the decomposition of a permutation as a product of transpositions and that as a union of disjoint cycles. It generates permutations at each recursive step and slight modifications of it produce generating algorithms for Bell permutations and involutions. Further refinements yield algorithms for these classes of permutations subject to additional restrictions: a given number of cycles or/and fixed points. We obtain, as particular cases, generating algorithms for permutations counted by the Stirling numbers of the first and second kind, even permutations, fixed-point-free involutions and d…
Tekijänoikeuslaki eduskunnan käsittelyssä : digitaalisten oikeuksien hallinnan teknologiat päätöksenteon kohteena
2007
Tässä tutkielmassa tarkastellaan digitaalisten oikeuksien hallinnan teknologioita eduskunnan päätöksenteon kohteena. Tutkimusongelmina selvitän ensiksi kuluttajan ja tuottajan intressejä digitaalisten oikeuksien hallinnan teknologioilla (engl. digital rights management, DRM) suojattuun aineistoon. Toisena tutkimusongelmana selvitän miten ja mitkä kuluttajien ja tuottajien intressit politisoituvat kansanedustajien argumentaatiossa, sekä kolmanneksi tarkastelen miten kansanedustajat politikoivat, toimivat poliittisesti säätäessään tekijänoikeuslain. Ensimmäisen tutkimuskysymyksen aineistona ovat tieteelliset artikkelit, toisen ja kolmannen tutkimuskysymyksen aineistona ovat tekijänoikeuslakik…
Experimental investigation of low-frequency pulsed Lorentz force influence on the motion of Galinstan melt
2016
Abstract The paper presents the results of the numerical and physical experiments, aimed at assessing the influence of pulsed force of electromagnetic field on the melt motion and the fluid velocities. The experiment was performed on the eutectic alloy Galinstan in the cylindrical volume, where an ultrasonic Doppler velocimeter was employed for velocity measurements under conditions of pulsed and steady EM field application. A numerical simulation of the melt flow, forced by the steady EM force, involved a 2D axisymmetric model. The k-e turbulence model was used to obtain the information about the melt velocities. The verification of the numerical model was carried out for the steady case. …
Manifiesto que hace... Fr. Geronimo Vilar, monge cisterciense, Presidente mayor de la Real Casa de S. Vicente de la Roqueta ... y Mayoral de las Pobl…
Port. orlada Escut calc. del Monestir de Poblet a la port Caplletra ornada al començament del text Sign.: [ ]1, A-G2, I1 Text amb postil·les marginals Reclams