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Ferrites represent a class of materials that are extensively studied due to their electrical and magnetic properties. These materials are widely used both in electrical and in electronics industry for the fabrication of devices and components such as high-density magnetic core of read/write heads for high-speed tape or disk recording. It has been proved that some ferrites can be successfully utilized in low-temperature water splitting thermochemical cycles.Synthesis and application of magnetic nano-particles with diameters of a few nanometers is a subject of intense research because of their...

Pyranometers (from the Greek word for fire) were designed specifically for measuring isolation. Isolation is the solar flux density i.e. was measured in watt/square meter. A digital pyronometer is an instrument which is used to measure the total of the solar radiation at the surface of the earth .Hare we introduce a series of argument on the mechanics of exchanges and thermal balance. Moreover with this instrument, a quantitative study of the solar energy is made possible