The present invention relates to a strain gauge having a conductive fluid made of a glycerin/aqueous salt mixture, and methods of making the strain gauge. The strain gauge comprises a polymer sleeve; a fluid piezoresistive material made by the glycerin/aqueous salt mixture; a metal tube, a metal con.....
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The invention relates to a sheet-type micro refrigerator applying a lead-free ferroelectric material. The micro refrigerator comprises a multi-layer structure which is composed of a ferroelectric dialectric layer and a metal electrode layer alternatively; the ferroelectric dielectric layer is made o.....
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The utility model relates to a duplex drainage standpipe and a system. The system comprises the duplex drainage standpipe in the building and a manhole at a lower end. The duplex drainage standpipe comprises a first drainage standpipe and a second drainage standpipe, which are arranged side by side .....
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A power light stick, comprising: a handle portion, for the user to grip, the front end of the handle portion is provided with an illumination means; hollow stick body portion connected to the handle portion, the upper portion of the stick body is provided with a rechargeable battery ; the stick in t.....
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The present invention relates to a carbon nanotube / nanoclay nano composite material and its preparation method, the method comprising the steps of: mixing a metal salt solution and nano clay to make the metal salt of nanoclay intercalated between layers, wherein The metal as a catalyst for the gro.....
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