The novel braking resistor consists of a power electronic circuit, with which the braking energy can be fed back to a three-phase system. The recovery of braking energy can thus save energy, reduce costs and relieve the burden on the environment.
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The invention describes an additive for electrolytes for use in lithium-ion batteries. The substance cis-4,5-bis (trifluoromethyl) -1,3-dioxolan-2-one according to the invention makes it possible to use the solvent propylene carbonate, which results in a reduced safety risk compared to conventional .....
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The invention describes a preparation as electrolyte for metal / air batteries. According to the invention for lithium / air batteries (here Li2O2) LiFEES (lithium 1,1,2,2-tetrafluoro-2- (pentafluoroethoxy) ethanesulfonate) as conductive salt and a solvent mixture of TEG - DME (tetraethylene glycol .....
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Angiopoietin-2 predicts the efficacy of angiogenesis inhibitors in colorectal cancer therapy.
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The process is particularly suitable for weft feeding in warp knitting machines. The invention can also be used for all types of high-speed winders. A rotating yarn guide and a slit-shaped straight edge are to be used for this purpose. The continuous movement avoids the high acceleration forces tha.....
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