A single universal equation can closely approximate the frequency of wingbeats and fin strokes made by birds, insects, bats and whales, despite their different body sizes and wing shapes, researchers ...

According to state data, about 24% — roughly one in four — of Portland Public Schools students lives in a family that receives government anti-poverty aid or is homeless, is from a migrant family or ...

President Trump on Wednesday announced tariffs on practically every foreign country (and some non-countries), ranging from a 10 percent minimum all the way up to 50 percent. The economic fallout has ...

How to measure and characterize the analog bandwidth for a receiver’s ADC. The ins and outs of the fundamental frequency-response measurement method. How to assemble the proper test setup. With analog ...

A novel robust adaptive technique is proposed to estimate the instantaneous power system frequency using a momentum-learning-control-rate-based fractional-order least mean squares approach with ...

This paper presents a novel approach for detecting high-impedance faults (HIF) in distribution systems that uses the Hilbert transform. Our approach is based on determining the instantaneous frequency ...

Trying to use a JFET for that limiting proved disappointing. Even when the circuit was optimised to minimise its inherent non-linearity, it added about -92 dB / 0.0025% of third harmonic to the ...

Wing-beat-frequency data for a variety of flying animals versus the square-root of the animal mass divided by the wing/fin area. A single universal equation can closely approximate the frequency of ...

MONACO, May 25 (Reuters) - Max Verstappen said his Red Bull was handling like a go-kart after being beaten into sixth place in Monaco Grand Prix qualifying. The triple Formula One world champion, who ...

Abstract: The object of study is a planar model of a symmetrical statically defined frame truss. The truss rods have the same cross-section and the truss mass is evenly distributed among its nodes.