1295results about How to "Easy to absorb" patented technology

The present invention relates to a tool for vitrification freezing and storing biological samples of ovum, embryo, etc. The present invention solves the problem that the biological sample is frozen promptly but is not exposed to liquid nitrogen directly, so as to prevent the potential biological pollution danger. The tool for vitrification freezing and storing biological sample comprises a straw and a protecting pipe which is mounted at the straw. The middle part of the straw is a fine thin-wall tube, the length of which is 20 to 30mm, and the diameter is 0.3 to 0.35mm. The two sides at the middle part of the protecting pipe are symmetrically provided with concave windows. The straw tool of the present invention is used for vitrification freezing and storing the ovum or the embryo and other cells, which can ensure that the biological sample is vitrified and frozen fast and also can ensure that the biological sample is not exposed to the liquid nitrogen directly to prevent the potential biological pollution danger.

The invention belongs to the technical field of air compressors, and relates to a low-noise structural oilless air compressor which comprises a cylinder, a cylinder cover and a piston, wherein the piston is provided with a sealing ring or a sealing leather cup made of a self-lubricating material, a crankcase is tightly connected with a crankcase cover plate and forms a crankcase intake muffler, an air intake one-way valve is arranged at an air intake or an air intake passage of the crankcase intake muffler communicated with the outside atmosphere, a damping pad is arranged between an exhaust valve plate and a valve seat, the valve seat is connected with a silencing cap, a crank pin is made into the shape of a spline or similar to the spline, a heat insulation hole or a heat insulation slot is arranged on a connecting rod body, and a heat insulation pad is arranged at the joint of a fastening bolt and the piston or a connecting rod. The low-noise structural oilless air compressor has the advantages that the air intake noise is low, the working temperature and the mechanical noise of a bearing are low, and an auxiliary balance block is arranged on a cooling fan, thereby reducing the vibration amplitude of the compressors, and effectively reducing the body vibration noise.

The invention discloses an electrolyte containing an inorganic additive and a lithium-ion battery containing the electrolyte. The electrolyte comprises an organic solvent, a lithium salt electrolyte, the inorganic additive and an organic additive; the inorganic additive is one or a mixture of two or more of dry aluminum oxide, dry silicon oxide, dry magnesium oxide, dry zinc oxide and dry titanium dioxide and has the particle size less than 100 nm. The electrolyte provided by the invention can reduce the surface activity of a cathode material, thereby suppressing side reaction between an electrode material and the electrolyte, increasing a battery charging voltage and improving the cycle comprehensive performance of the electrolyte, can improve wettability and good imbibition of the electrolyte for a diaphragm and suppress a micro-short circuit, can efficiently improve the electrochemical performance of a lithium battery for neutralizing free harmful gases such as hydrogen fluoride and fluorine gas, and can reduce water content in the electrolyte.

The invention discloses a sweeper which belongs to the field of sweepers. The sweeper comprises a machine body, wherein a cleaning device is arranged at the left side of the bottom of the machine body; a dust suction device is arranged at the right side of the cleaning device; a brushing device is arranged at the right side of the dust suction device; an air outlet flue is arranged in the right side of a water suction device; a heating device is arranged in an inner cavity of the air outlet flue; a water tank is arranged at the top of the machine body; by virtue of the dust suction device, small-particle garbage can be sucked into a second garbage can by virtue of the dust suction device; gas, which is filtered by virtue of a filtering layer, is cooled in a cooling chamber; water mist in the cooled gas is filtered by virtue of a gas-permeable and water-impermeable filtering membrane; the cooled gas enters a sealed box so as to cool down a heating motor; the gas, which is heated by virtue of a heating device in the air outlet flue, is blown towards the bottom surface, so that the bottom surface, which is moist, is blow-dried; by rotating an hairbrush at the back side in a clockwisedirection and rotating an hairbrush at the front side in an anticlockwise direction, floors are brushed, and meanwhile, sewage is swept towards the middle, so that the sewage can be conveniently absorbed via water absorbent wool, and then the water absorbent wool is scraped and dried via a scraper.