201,427 research outputs found
Connecting-lemma y Closing-lemma en flujos seccional-Anosov
No full textEn este trabajo se estudia parte del comportamiento de los flujos seccional-Anosov sobre 3-variedades compactas (posiblemente con @M 6= ;), haciendo énfasis en dos resultados bastante importantes conocidos como connecting-lema y closing-lema. Para poder llegar a la prueba de estos resultados primero se haría un recuento de las propiedades principales de este tipo de flujos, tratando de ver el comportamiento de los flujos a través del comportamiento de sus funciones de retorno para secciones transversales escogidas de manera conveniente. / Abstract. In this paper we study part of the behavior of the sectional-Anosov ows on compact 3- manifolds (possibly with @M 6= ;), with emphasis on two quite significant results known as connecting-lemma and closing-lemma. Order to arrive at the testing of these results first will be an account of the main properties of such ows, trying to see the ow behavior through the behavior of this return maps for selected cross sections conveniently.Maestrí
KYP lemma based stability and control law design for differential linear repetitive processes with applications
No full textRepetitive processes are a class of two-dimensional systems that have physical applications, including the design of iterative learning control laws where experimental validation results have been reported. This paper uses the Kalman–Yakubovich–Popov lemma to develop new stability tests for differential linear repetitive processes that are computationally less intensive than those currently available. These tests are then extended to allow control law design for stability and performance
On a Lemma of M. Abramson
No full textKaplansky's Lemma [3] states: the number of k-combinations of 1, 2,…, n with no two consecutive integers in any selection is Using this, Abramson [l; lemma 3] solves the problem: find the, number of k-combinations so that no two integers i and i+2 appear in any selection. (This is generalized by Abramson in [2].) An interesting solution, also using Kaplansky's lemma, is obtained as follows.If n = 2m, we choose s from among the m even integer s, no two consecutive, and k- s from among the m odd integers, no two consecutive.</jats:p
Super-efficient energy buildings
No full textRecently, a highly energy-efficient house was built in Chignolo, near Bergamo in Northern Italy. A ten-year experience in Germany shows that it is possible, with limited technological and economical investment, to achieve a reduction in current energy consumption as large as 90% in comparison with a traditional building. The house is the first example of such a low-energy building in Italy, where the climate is warmer than Germany and summer conditions must be properly addressed in order to avoid overheating
Phase Change Materials in concrete building elememts: a performance characterisation
No full textCoimbra 200
The Recovery of Materials and Components from the Demolition of Civic Buildings, as Performance Indicators for Environmental Management Systems
No full textProceedings of the 2nd National Congress (Ed. by M.Pelino
Pannelli prefabbricati per chiusure ad inerzia artificiale programmata: problematiche tecnologiche.
No full textY-graft and proximal LIMA flow adaptability : the surgical wisdom of iatrogenics - Reply to Kargar and Aazami
No full textMuon collider: The Low EMittance Muon Accelerator (LEMMA) approach
No full textThis work introduces a new proposal for a low–emittance muon accelerator (LEMMA) in which muon beam is obtained from the e+e-→m+m- annihilation process with positrons at the threshold energy of 45 GeV. The experimental test beam setup implemented to validate this concept is presented together with preliminary results from the experimental data
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