The fibre reflects near-infrared and visible light from the sun, and allows the human body to release middle-infrared, thus achieving outstanding cooling effects. It also absorbs ultraviolet light from the sun, making it an ideal sun-protection textile material for outdoor workers and residents in t.....
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A magnetic core is made of a composite magnetic material having a relative permeability of between 1 and 29 at a frequency range from 20 kHz to 2.5 MHz. The composite magnetic material consists of cobalt and nickel particles having an average diameter in the range of 1 to 100 micrometers, and a poly.....
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A DC to DC converter includes a switch, a diode, and a capacitor connected in series with an inductor. The capacitor and inductor provide a resonant time period and are connected in series with the switch and the diode. A control circuit provides an on/off signal to the switch and has a switching ti.....
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