Alzheimer’s disease (AD) is a neuroinflammatory based pathologic state in which β-amyloid aggregates are a major devastating agents. In this study, a series of 2-hydroxyiminoethanones were synthesized and evaluated as anti-inflammatory in carrageenan and formalin tests and inhibitors of β-amyloid aggregation. Compounds 1-10b were synthesized through a two-step reaction. Results: Compounds 1-5b ...

This paper presents a systematic parameter extraction method for an HBT temperature-dependant equivalent-circuit DC model. A reliable procedure was developed for determining the HBT thermal resistance, requiring only forward Gummel data at different temperatures and collector-emitter bias voltages. The extraction method was applied to predict the DC characteristics of a 2x25 μm emitter-area InG...

A large–signal model of AlGaN/GaN HEMTs grown on sapphire substrate with gate width Wg = 2 × 150 μm and gate length Lg = 250 nm is presented. The equivalent circuit model accurately describes the sub–threshold region and takes into account the self–heating effects. The thermal resistance has been calculated analytically. The DC, small–signal and large– signal behaviour are accurately described ...

This article presents a configuration that can simulate both resistor in series with frequency-dependent negative-resistance (R-D) and capacitor (R-C), different selection of passive elements. The proposed circuit employs only two current-controlled-current-feedback- amplifiers (CC-CFAs) grounded does not require element matching, the simulated equivalent values be tuned electronically by apply...

This paper proposes a single-phase, single-stage common-ground inverter with non-electrolytic capacitor and buck-boost ability. The proposed is employed by boost stage DC-DC converter bimodal circuit, which makes it satisfactory for PV systems wide input voltage range lower switch stress. leakage current of the can effectively suppress because parasitic between panel ground shortened. In additi...

Alzheimer’s disease (AD) is a neuroinflammatory based pathologic state in which β-amyloid aggregates are a major devastating agents. In this study, a series of 2-hydroxyiminoethanones were synthesized and evaluated as anti-inflammatory in carrageenan and formalin tests and inhibitors of β-amyloid aggregation. Compounds 1-10b were synthesized through a two-step reaction. Results: Compounds 1-5b ...

Continuous welded turnouts are important for CWR track through the railway station. According to equivalent resistance and non-linear theories and the principle of force diagram, a new method of theoretical calculation for continuous welded turnouts was developed. The continuous welded turnouts designed and installed according to the new theory behaved fairly well. The data collected on sites b...

The calibration of photovoltaic devices requires the measurement of their current–voltage characteristics at standard test conditions (STC). As the latter can only be reached approximately, a curve translation is necessary, requiring among others the internal series resistance of the photovoltaic device as an input parameter. Therefore accurate and reliable determination of the series resistanc...