407 research outputs found
A variant of the energy method: an application to the Benard problem for a viscoelastic rotating fluid.
No full textIn a previous paper of the second author the nonlinear Lyapunov stability of the thermodiffusive equilibrium of a viscoelastic rotating Walters fluid, in a horizontal rotating layer heated and salted from below was studied. If instability occurs as stationary convection a sufficient condition to ensure the coincidence of linear and nonlinear stability bounds was obtained. In this paper we reconsider the same problem recovering the same result without any restriction on the viscoelasticity parameter
Institute of Archaeology & Horn Archaeological Museum Newsletter Volume 19.4
No full textRoyalty Visit MPP, edited from correspondences from Øystein S. LaBianca and Larry G. Herr
Map Project, Paul J. Ray, Jr.
Annual Meeting, Jennifer L. Groves
Museum Visitors, Philip R. Drey
Visiting Scholars, Jennifer L. Groves
Tell Jalul, Jordan 1999
Al-Maktába
Random Surveyhttps://digitalcommons.andrews.edu/iaham-news/1138/thumbnail.jp
On the nonlinear stability of the thermodiffusive equilibrium for the magnetic Benard problem
No full textIn this paper we study the nonlinear Lyapunov stability of the thermodiffusive equilibrium of a viscous electroconducting horizontal uid layer heated from below. We reformulate the nonlinear stability problem, in terms of poloidal and toroidal fields, by projecting the initial perturbation evolution equations on some suitable orthogonal subspaces of the kinematically admissible functions. In such a way, if the principle of exchange of stabilities holds, we obtain, in the classical L^2-norm, the coincidence of linear and nonlinear stability bounds
L'importanza di un approccio multidisciplinare coordinato nelle indagini sui monumenti dell'antichità
No full textAn in-depth preliminary knowledge of a cultural heritage is necessary to protect and preserve the cultural heritage itself. For this purpose, today we can use a lot of methodologies developed by scholars of different disciplines: archaeologists, historians of Art, architects, engineers, biologists, chemists, physicists. Also two other new disciplines, Archaeoastronomy and Analysis of the geometries, can complete and integrate this knowledge.
This work collects the results of the investigation on geometrical and numerical schemes and associated length units and on orientation and astronomical meaning of some artefact belonging to different eras: the hypogeal Neo-Pytagorean Basilica at Porta Maggiore in Roma and the Mithraea in Ostia Antica
Palliation of inoperable carcinoma of the esophagus and esophago-gastric joint with metallic self-expanding stent.
No full textAnalisi delle caratteristiche resistive degli HME durante ventilazione meccanica in Terapia Intensiva
No full textPalliation of inoperable carcinoma of the esophagus and esophago-gastric joint with metallic self-expanding stent.
No full text
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