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3110results about How to "Small granularity" patented technology

A text implication relation recognition method based on multi-granularity information fusion

The present invention provides a text implication relation recognition method which fuses multi-granularity information, and proposes a modeling method which fuses multi-granularity information fusionand interaction between words and words, words and words, words and sentences. The invention firstly uses convolution neural network and Highway network layer in character vector layer to establish word vector model based on character level, and splices with word vector pre-trained by GloVe; Then the sentence modeling layer uses two-way long-short time memory network to model the word vector of fused word granularity, and then interacts and matches the text pairs through the sentence matching layer to fuse the attention mechanism, finally obtains the category through the integration classification layer; After the model is established, the model is trained and tested to obtain the text implication recognition and classification results of the test samples. This hierarchical structure method which combines the multi-granularity information of words, words and sentences combines the advantages of shallow feature location and deep feature learning in the model, so as to further improve the accuracy of text implication relationship recognition.
Owner:SUN YAT SEN UNIV +1

Manufacturing method of micro spherical titanium and titanium alloy powder

ActiveCN104475743AFast purification smeltingControlled purification smeltingSpherical shapedTitanium alloy
The invention relates to a manufacturing method of micro spherical titanium and titanium alloy powder, and belongs to the technical field of metal and alloy powder manufacturing. The manufacturing method comprises the steps that a titanium and titanium alloy wire or bar is manufactured by using sponge titanium in the national standard TA1 grade as a raw material; forvacuum treatment is conducted on a powder manufacturing device, and then the powder manufacturing device is filled with inert protective gas; the raw material wire or bar is fed into a smelting chamber through a continuous feeding mechanism and a straightener, the raw material is heated and smelted through a high-frequency induction coil, and the alloy raw material is molten to form stable liquid flow or drip flow; supersonic atomizing nozzles in atomizers are opened, and breakage, dispersion and forced cooling powder manufacturing are conducted on the molten liquid flow or the drip flow; powder is obtained through a powder collector, and is screened through an ultrasonic vibrating screen to obtain the micro spherical titanium and titanium alloy powder. The micro spherical titanium and titanium alloy powder manufactured through the manufacturing method is small in particle size, high in degree of sphericity, good in liquidity and low in impurity content, and has smooth surfaces.
Owner:有研增材技术有限公司

Drug delivery system and preparation method thereof

The invention belongs to the technical field of medicines, and discloses a delivery system based on protein-phospholipid. The system comprises a protein-phospholipid dispersion with the weight ratio of between 1:100 and 100:1, wherein the grain size of the protein-phospholipid is between 5 and 1,000nm, and the surface of the phospholipid or the surface and the inside of the phospholipid are coated / covered by a protein layer. The preparation method comprises: preparing a phospholipid containing phase, preparing a protein containing water phase, performing the homogenization treatment on the phospholipid containing phase and the protein containing water phase at a temperature of between 0 and 40 DEG C and under a pressure of between 400 and 40,000psi, and obtaining a dispersion system with the average grain size of less than 1,000nm. The delivery system has the advantages of realizing the delivery in various ways such as injection, oral taking, cavities and canals, skin and the like, and lowering side effects of medicines. The delivery system solves the problems of drug-loading rate and stability of protein nano-grain and liposome, and adopts low-toxicity organic solvent, even no organic solvent; and the preparation method is easy for industrialized application, and can prepare a liquid type protein-phospholipid containing delivery system.
Owner:SHENYANG PHARMA UNIVERSITY

Method for recycling metal and combustibles from domestic waste incineration slag

The invention relates to a method for recycling metal and combustibles from domestic waste incineration slag, and belongs to the field of the solid waste harmless and recycling technology. By means of multi-stage gradient magnetic separation, separation of magnetic metal in the slag is achieved. By means of two-stage eddy current, nonferrous metal in the slag is separated and recycled. According to the grain size distribution and chemical morphological characteristics of the metal in the slag, the metal is crushed and screened in multiple steps so that separated slag particles can be uniform, the recycling rate of magnetic separation and eddy current separation is effectively increased, and finally, according to the density difference of materials, air separation is used for recycling the combustibles in the slag. Finally, the magnetic separation recycling rate of iron in the technological process is 60-80%, the recycling rate of the nonferrous metal aluminum is 60-70%, the recycling rate of the nonferrous metal copper is 40-50%, and separation of the metal in the slag and slag particles can be effectively achieved. The separated metal products can be directly sold or sold after refining, the combustibles can serve as waste incinerator fuel, and the remaining slag can be used as building materials.
Owner:TONGJI UNIV
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