307,713 research outputs found
ALGAAS HBV performance in frequency tripling at 255 GHZ
No full textThis paper presents a novel method to investigate the efficiency of a tripler with a HBV diode based on Al0.7Ga0.3As/GaAs. The HBV diodes with different mesa diameters have been fabricated and their DC characteristics have been measured. These characteristics are used by a combined genetic algorithm/harmonic balance simulator to calculate the optimum impedances and output powers at the frequency of 255 GHz. A comparison of the conversion efficiencies are presented for the different structures
Fabrication, Testing, and Lumped Element Modeling of Planar Heterostructure Barrier Varactors
No full textA Novel Model of Acute Myocardial Ischemia in Human Ventricular Cardiomyocytes
No full textAcute myocardial ischemia is known to be a pathology with a high mortality worldwide. In the last decades, computational simulation has been a widely used tool to study the electrophysiological effects of ischemia. In this work, we present an up-to-date model of the effects of myocardial ischemia in the action potential which includes more ischemia-affected current alterations than any other previously published model. The model was used to simulate action potentials during a 10-minute period of dynamic ischemia, and the main biomarkers of the action potential were monitored, as well as the extracellular potassium elevation. The results agree with those obtained experimentally, suggesting that the model can be useful for 3D simulations of acute myocardial ischemia
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American G.I. Forum – Beeville queen. Eva Rodriguez (photograph)
No full textAmerican G.I. Forum – Beeville queen. Eva Rodriguez
Letter from A. M. Rodriguez to Alden Partridge, 16 March 1828
No full textA. M. Rodriguez writes Alden Partridge regarding the academy at Norwich, Vermont; there are currently 20 cadets under the direction of Mr. McKay and a smaller number studying French or Spanish from him; Rodriguez is simply not qualified to teach all the subjects assigned him by Mr. McKay and doesn't believe that Mr. McKay is being fair in his distribution of teaching responsibilities; he hopes to move on to teach elsewhere (possibly at one of the academies that are being contemplated in Baltimore or New York) as opportunity arises; expresses little confidence in the success of the academy without Partridge's presence.Transcription by Raymond Bouchard. Transcriptions may be subject to error
A novel evolutionary approach for the analysis and optimization of THz nonlinear circuits
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Lindsey Rodriguez sworn in as State Representative by James Turman (Photograph)
No full textThe Honorable Lindsey Rodriguez sworn in as State Representaive for District 37-F by Speaker of the House, The Honorable James Turman
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Miss Rae Rodriguez, Port Clinton G.I. Forum Queen contestant. Ohio (photograph)
No full textMiss Rae Rodriguez, Port Clinton G.I. Forum Queen contestant. Ohio
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