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Meijer, J.A.M. (author), Geertman, R.M. (author), Oosterhof, H. (author), Witkamp, G.J. (author), Van Rosmalen, G.M. (author)
A process is presented in which anhydrous soda is crystallized and worked up to produce anhydrous soda crystals with a bulk density from 1300 to 1600 kg/m<3>. The process is characterized in that a solvent is used that allows the crystals to be formed and handled at atomspheric pressure in the presence of water without the monohydrate of soda...
patent 1999
Meijer, G.C.M. (author), Hilhorst, M.A. (author)
The invention relates to an electrical measuring device for performing an electrical -impedance measurement in a contactless manner. The measuring device comprises a measuring unit which is provided with the impedance (7,8) to be measured and a passive resonance circuit (4) connected thereto for generating a measuring signal to be wirelessly...
patent 2008