Faculty Recital:David R. Sheaffer, Oboe

Centennial Lecture Hall November 17, 1968 3:00p.m

An Evening of Baroque Chamber Music

Centennial Lecture Hall April 14, 1969 8:15p.m

ISU Faculty Woodwind Quintet Concert: Mary Finnigan, Flute; David R. Sheaffer, Oboe; Herbert Sanders, Clarinet; Philip HIllstrom, French Horn; James Thornton, Bassoon; April 22, 1971

Capen AuditoriumThursdayApril 22, 19718:15 p.m

University Woodwind Quintet

Centennial Lecture Hall November 25, 1968 8:15p.m

The University Woodwind Quintet

Centennial Lecture Hall April 17, 1969 8:15p.m

Buttons, Handles, and Keys: Advances in Continuous-Control Keyboard Instruments

This is the peer reviewed version of the following article: Buttons, Handles, and Keys: Advances in Continuous-Control Keyboard Instruments, which has been published in final form at http://dx.doi.org/10.1162/COMJ_a_00297. This article may be used for non-commercial purposes in accordance with MIT Press Journal's Terms and Conditions for Self-Archiving. © 2015, MIT Press Journal

Low energy radioactive ion beams at SPES for nuclear physics and medical applications

Over the past decades many accelerator facilities have been built in order to produce radioactive nuclei. Among the falcility under construction, SPES (Selective Production of Exotic Species) is the Italian ISOL (Isotope Separation On Line) facility in the installation phase in these years in the Laboratori Nazionali di Legnaro. The innovative aspect of this facility is that the radioactive beam produced by fission induced by the proton beam, produced by a high power cyclotron, interact with a multi-disks uranium carbide target. The formed RIB will be sent directly to the low energy experimental area and, afterwards, to the post-acceleration complex. Currently the installation program concerning the SPES RIB source provides the set-up of the apparatus around the production bunker. The main objective of SPES project is to provide, in the next years, the first low-energy radioactive beams for beta decay experiments using the b-DS (beta Decay Station) set-up and for radiopharmaceutical applications by means of the IRIS (ISOLPHARM Radioactive Implantation Station) apparatus. In this work, all the specific issues related to the SPES RIB and the Low Energy beam lines will be reported. The main RIB systems, such as ion source systems, target-handling devices and the installation of low energy transport line, will be presented in detail

Stability analysis of an extremum seeking controller for mode-matching in vibrating microgyros

The aim of this paper is to provide a (local) stability analysis of an extremum seeking controller that we have designed in order to achieve the mode-matching condition in vibrating microgyroscopes. It is shown that the proposed adaptive add-on control scheme reaches the mode-matching condition at least locally about the driving mode, i.e. when the initial mismatch of the vibrating modes in the microgyro is sufficiently small (local convergence). To prove that, we make use of several interwound steps in which the averaging and the singular perturbation methods are applied

Mode-matching in vibrating microgyros using an extremum seeking controller with switching logic

In order to improve the sensitivity and to reduce the readout circuit complexity of any angular velocity microsensor (vibrating gyroscope), it is crucial to reduce the frequency mismatch of its resonant modes of vibrations. In this paper, we consider the problem of designing an adaptive controller capable of automatically matching the resonant frequencies of the two main modes of vibration of a single axis vibrating microgyroscope, under the provision that there is an underlying mechanism that allows to control the frequency-mismatch by adjusting a suitable parameter. Similarly to what we have done in a previous work, the proposed control scheme is based on an extremum seeking procedure: however, differently from what done before, we avoid the use of a perturbation signal in the seeking process, thus conceveing a mode-matching controller that theoretically guarantees an improved frequency-matching accuracy. © 2008 IEEE