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Lecture Notes (lecture + note)
Selected AbstractsLecture Notes on Clinical MedicineJOURNAL OF COSMETIC DERMATOLOGY, Issue 4 2004CME Rowland Payne [source] Global existence of weak-type solutions for models of monotone type in the theory of inelastic deformationsMATHEMATICAL METHODS IN THE APPLIED SCIENCES, Issue 14 2002Krzysztof Che This article introduces the notion of weak-type solutions for systems of equations from the theory of inelastic deformations, assuming that the considered model is of monotone type (for the definition see [Lecture Notes in Mathematics, 1998, vol. 1682]). For the boundary data associated with the initial-boundary value problem and satisfying the safe-load condition the existence of global in time weak-type solutions is proved assuming that the monotone model is rate-independent or of gradient type. Moreover, for models possessing an additional regularity property (see Section 5) the existence of global solutions in the sense of measures, defined by Temam in Archives for Rational Mechanics and Analysis, 95: 137, is obtained, too. Copyright © 2002 John Wiley & Sons, Ltd. [source] State and output feedback design for robust tracking of linear systems with rate limited actuatorsOPTIMAL CONTROL APPLICATIONS AND METHODS, Issue 1 2002Zongli Lin Abstract A design technique (Control of Uncertain Systems with Bounded Inputs, Tarbouriech S, Garcia G, (Eds), Lecture Notes in Control and Information Sciences, vol. 227, Springer: Berlin, 1997; 173,186) recently proposed for stabilization of a linear system with rate-limited actuators is utilized to design feedback laws that cause the system output to track a desired command signal. This design technique combines two design techniques recently developed for linear systems with position limited actuators, piecewise-linear LQ control (Automatica, 1994; 30: 403,416) and low-and-high gain feedback (IEEE Trans. Automat. Control, 1996; 41: 368,378), and hence takes advantage of both design techniques, while avoiding their disadvantages. In the case that only the output is available for feedback, the performance of the state feedback law is preserved by the use of a fast observer. An open-loop exponentially unstable fighter aircraft is used to demonstrate the effectiveness of the proposed control design method. Copyright © 2002 John Wiley & Sons, Ltd. [source] Hamiltonian particle-mesh simulations for a non-hydrostatic vertical slice modelATMOSPHERIC SCIENCE LETTERS, Issue 4 2009Seoleun Shin Abstract A Lagrangian particle method is developed for the simulation of atmospheric flows in a non-hydrostatic vertical slice model. The proposed particle method is an extension of the Hamiltonian particle mesh (HPM) [Frank J, Gottwald G, Reich S. 2002. The Hamiltonian particle-mesh method. In Meshfree Methods for Partial Differential Equations, Lecture Notes in Computational Science and Engineering, Vol. 26, Griebel M, Schweitzer M (eds). Springer-Verlag: Berlin Heidelberg; 131,142] and provides preservation of mass, momentum, and energy. We tested the method for the gravity wave test in Skamarock W, Klemp J. 1994. Efficiency and accuracy of the Klemp-Wilhelmson time-splitting technique. Monthly Weather Review 122: 2623,2630 and the bubble experiments in Robert A. 1993. Bubble convection experiments with a semi-implicit formulation of the Euler equations. Journal of the Atmospheric Sciences 50: 1865,1873. The accuracy of the solutions from the HPM simulation is comparable to those reported in these references. A particularly appealing aspect of the method is in its non-diffusive transport of potential temperature. The solutions are maintained smooth largely due to a ,regularization' of pressure, which is controlled carefully to preserve the total energy and the time-reversibility of the model. In case of the bubble experiments, one also needs to regularize the buoyancy contributions. The simulations demonstrate that particle methods are potentially applicable to non-hydrostatic atmospheric flow regimes and that they lead to a highly accurate transport of materially conserved quantities such as potential temperature under adiabatic flow regimes. Copyright © 2009 Royal Meteorological Society [source] The European computer driving licence and the use of computers by dental studentsEUROPEAN JOURNAL OF DENTAL EDUCATION, Issue 1 2009G. S. Antonarakis Abstract The use of computers within the dental curriculum for students is vital for many aspects of their studies. The aim of this study was to assess how dental students who had obtained the European computer driving licence (ECDL) qualification (an internationally-recognised standard of competence) through taught courses, felt about the qualification, and how it changed their habits vis-à-vis computers, and information and communication technology. This study was carried out as a descriptive, one-off, cross-sectional survey. A questionnaire was distributed to 100 students who had successfully completed the course, with questions pertaining to the use of email, word processing and Internet for course-works, Medline for research, computer based learning, online lecture notes, and online communication with members of staff, both before and after ECDL qualification. Scaled responses were given. The attitudes of students towards the course were also assessed. The frequencies and percentage distributions of the responses to each question were analysed. It was found that dental students who follow ECDL teaching and successfully complete its requirements, seem to increase the frequency with which they use email, word processing and Internet for course works, Medline for research purposes, computer based learning, online lecture notes, and online communication with staff. Opinions about the ECDL course varied, many dental students finding the course easy, enjoying it only a little, but admitting that it improved their computer skills. [source] Basics of F-theory from the Type IIB perspectiveFORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 7-9 2010R. Blumenhagen These short lecture notes provide an introduction to some basic notions of F-theory with some special emphasis on its relation to Type IIB orientifolds with O7/O3-planes. [source] Deferring to resources: collaborations around traditional vs computer-based notesJOURNAL OF COMPUTER ASSISTED LEARNING, Issue 1 2002C. Crook Abstract Undergraduate students were observed engaged in a species of collaboration rarely studied and yet which is grounded in an authentic form of normal study practice: namely, revising a course in preparation for an exam. Pairs of undergraduates were convened for recorded sessions in which they did this around either their own personal lecture notes or around a set of notes authored by the lecturer and made available as web-readable computer documents. Although the goals, motives and orientations of these pairings were similar, the nature of the collaborative resource effected the character and rhythm of the joint conversation. The computer-based documents led to less on-task collaborative talk. Moreover, these documents sustained conversation that was more fragmented around successive short topics. Observations are made regarding how certain discursive openings are more readily afforded when revision talk is mediated by a less singular, authorised, and directive form of document. [source] From primordial quantum fluctuations to the anisotropies of the cosmic microwave background radiation ,ANNALEN DER PHYSIK, Issue 10-11 2006N. Straumann Abstract These lecture notes cover mainly three connected topics. In the first part we give a detailed treatment of cosmological perturbation theory. The second part is devoted to cosmological inflation and the generation of primordial fluctuations. In part three it will be shown how these initial perturbation evolve and produce the temperature anisotropies of the cosmic microwave background radiation. Comparing the theoretical prediction for the angular power spectrum with the increasingly accurate observations provides important cosmological information (cosmological parameters, initial conditions). [source] | |||||||||||||