Internal model based temperature controllers are developed for effusion sources that are part of a continuous process for production of thin-film photovoltaic modules. Operation of this system in a research framework necessitates the ability to perform fast, overshoot-free reference changes. To address input constraints, controllers are implemented using an anti-windup scheme. Both empirical AR...

The stellar evolution code YREC is outlined with emphasis on its applications to helioand asteroseismology. The procedure for calculating calibrated solar and stellar models is described. Other features of the code such as a non-local treatment of convective core overshoot, and the implementation of a parametrized description of turbulence in stellar models, are considered in some detail. The c...

One cause of failure in natural language interfaces is semantic overshoot; this is reflected in input sentences which do not correspond to any semantic pattern in the system. We describe a system which provides helpful feedback in such cases by identifying the "semantically closest" inputs which the system would be able to understand.

Source models are determined for the three underground nuclear explosions at the Amchitka test site using seismic observations in the period range 0.5 to 20.0 sec. Empirical yield-scaling relations are inferred from the source models and compared with the predictions of the Haskell, Mueller-Murphy, and finite difference numerical models. Several recent studies of high-frequency, near-field sign...

In this work, overshoot and undershoot effects associated with step-and-shoot IMRT (SSIMRT) delivery on a Varian Clinac 21iX are investigated, and their impact on patient-specific QA point dose measurements and treatment plan delivery are evaluated. Pinnacle3 SSIMRT plans consisting of 5, 10, and 15 identical 5 × 5 cm2 MLC defined segments and MU/segment values of 5 MU, 10 MU, and 20 MU were ut...

PURPOSE The purpose of the current research is to understand if the different eye movement abnormalities in patients with the same neurologic disease are related to varied disease processes or, alternately, do different patients adopt different strategies to overcome a singular brain deficiency. METHODS Using a magnetic search coil, we measured saccade dynamics, that is position and velocity ...

This paper addresses the design and implementation of the Extended Prediction Self-Adaptive Control (EPSAC) approach to Model Predictive Control (MPC) for path-following. Special attention is paid to the closed-loop performance in order to achieve a fast response without overshoot, which are the necessary conditions to ensure the desired tracking performance in confined or indoor environments. ...

Study of gate length dependent effective velocity manifests the velocity overshoot effects in MOSFETs. Effective velocity of holes in control Si, S i ~ . s G e ~ . ~ and Sio.793Geo,2Co.oo7 devices with different channel lengths are shown in Fig. 2. As channel length decreases, vef increases in every device. In the case of the 0.8 pm device, the effective hole velocity of Sio.793Ge0.2C0.007 is e...