Given a set of hospital admittance and death records, the challenge was to characterize the spread of a pandemic in terms of the attack and mortality rates, spatiotemporal patterns of onset and the recovery time. We began the analysis by preprocessing the hospital admittance records using the University of Pittsburgh’s CoCo classifier [1]. CoCo is a text classification software that takes hospi...

The dissertation presents a generalized average-current-mode control technique (GACMC), which is an extension of the average-current-mode control (ACMC) for single-phase ac-dc boost converters with power factor correction (PFC). Traditional ACMC is generalized in a sense that it offers improved performance in the form of significant reduction of the current control loop bandwidth requirement fo...

In this paper, models of input admittance of RC interconnects are discussed in depth to understand and evaluate their loading effects on driving CMOS gates. From a detailed analysis of input admittance polezero location, arguments are derived to prove that their input admittance can be accurately approximated to that of a low-order equivalent RC circuit, in contrast to the case of timing analys...

Longitudinal measures of peak-compensated static acoustic admittance and tympanometric width are reported for infants and toddlers from 6 months to 30 months of age, based on over 1600 assessments of 88 children during a 24-month period. The subjects were all African-American children in full-time day care. Significant age effects were observed, with younger children displaying lower static adm...

Since the discovery of Cole and Curtis (1938. Nature (Lond.). 142:209 and 1939. J. Gen. Physiol. 22:649) that the imaginary components, i.e., capacitive and inductive components, of the admittance of squid axon membrane remained unchanged during the action potential, there have been numerous studies on impedance and admittance characteristics of nerves. First of all, it is now known that the di...

In this paper, a peg-in-hole insertion task is used as an example to illustrate the utility of direct as-sociative reinforcement learning methods for learning control under real-world conditions of uncertainty and noise. An associative reinforcement learning system has to learn appropriate actions in various situations through search guided by evaluative performance feedback. We used such a lea...

A sensor for measuring adsorption on a substrate has been designed including a contactless detection scheme, called supercapacitive admittance tomoscopy (SCAT). The sensor comprises a thin dielectric layer with two parallel band electrodes on the one side and a chemically modified surface on the other onto which the adsorption of molecules occurs. Upon application of a high frequency ac voltage...

Abstract With their self-tuned time-varying responses, waveform-selective metasurfaces embedded with nonlinear electronics have shown fascinating applications, including distinguishing different electromagnetic waves depending on the pulse width (PW). However, thus far they only been realized a spatially homogeneous scattering profile. Here, by modeling metasurface as admittance sheets, we prov...