Abstract: The present invention discloses a water-saving mop bucket, which comprises an outer bucket, an inner bucket, a cover plate assembly and a pedal mechanism, wherein the cover plate assembly is detachably fit in the middle of the inner bucket; the pedal mechanism is installed at the lower part of the outer bucket and extends upward through the inner bucket, and is detachably connected with the cover plate assembly; the water spraying structure of the present invention is arranged in the center, and the sprayed water can flow from the inside to the outside under the centrifugal force, so that the entire mop can be washed, and all the sprayed water can be effectively utilized, thus achieving water saving; meanwhile, the functions of cleaning and dehydration are realized, and the invention has the advantages of time and labor saving, convenient use and the like.

Abstract: A preparation method of drug-loaded micelles of an absorbable vascular stent coating for angiostenosis in an infant is provided, including the following steps: S1: dissolving a drug to be encapsulated in an appropriate amount of an emulsifying agent, adding a chitosan-poly(p-dioxohone) amphiphilic block copolymer (chitosan-b-PPDO copolymer), and thoroughly mixing to obtain a drug-copolymer solution; S2: adding the drug-copolymer solution obtained in S1 dropwise to an emulsifying agent aqueous solution prepared in advance, and continuously stirring to obtain a stable drug-loaded micellar solution; and S3: removing the emulsifying agent from the micellar solution obtained in S2 through vacuum evaporation, stirring a resulting concentrate, and centrifuging the concentrate to obtain a supernatant; and filtering the supernatant to obtain a filtrate, and subjecting the filtrate to dialysis to obtain the drug-loaded micelles.

Abstract: A preparation method of drug-loaded micelles of an absorbable vascular stent coating for angiostenosis in an infant is provided, including the following steps: Si: dissolving a drug to be encapsulated in an appropriate amount of an emulsifying agent, adding a chitosan-poly(p-dioxohone) amphiphilic block copolymer (chitosan-b-PPDO copolymer), and thoroughly mixing to obtain a drug-copolymer solution; S2: adding the drug-copolymer solution obtained in S1 dropwise to an emulsifying agent aqueous solution prepared in advance, and continuously stirring to obtain a stable drug-loaded micellar solution; and S3: removing the emulsifying agent from the micellar solution obtained in S2 through vacuum evaporation, stirring a resulting concentrate, and centrifuging the concentrate to obtain a supernatant; and filtering the supernatant to obtain a filtrate, and subjecting the filtrate to dialysis to obtain the drug-loaded micelles.

Abstract: A data storage method for speech-related deep neural network (DNN) operations, characterized by comprising the following steps: 1. determining the configuration parameters by a user; 2. configuring a peripheral storage access interface; 3. configuring a multi-transmitting interface of feature storage array; 4. enabling CPU to store to-be-calculated data in a storage space between the feature storage space start address and the feature storage space end address of the peripheral storage device; 5. after data storage, enabling CPU to check the state of the peripheral storage access interface and the multi-transmitting interface of feature storage array; 6. upon receiving a transportation completion signal of the peripheral storage access interface by CPU, enabling the multi-transmitting interface of feature storage array. 7. upon receiving a transportation completion signal of the multi-transmitting interface of feature storage array by CPU, repeating step 6.

Abstract: The application relates to the field of biopharmaceuticals, in particular to tumor-targeting peptides and method for preparation and application thereof. The application discloses a tumor-targeting peptide. The tumor-target peptide displays better binding specificity and capability, thereby alleviates the effect of cancer treatment drugs on normal cells, reduces the incidence of adverse drug reactions, and improves the therapeutic effect.

Abstract: A data storage method for speech-related deep neural network (DNN) operations, characterized by comprising the following steps: 1. determining the configuration parameters by a user; 2. configuring a peripheral storage access interface; 3. configuring a multi-transmitting interface of feature storage array; 4. enabling CPU to store to-be-calculated data in a storage space between the feature storage space start address and the feature storage space end address of the peripheral storage device; 5. after data storage, enabling CPU to check the state of the peripheral storage access interface and the multi-transmitting interface of feature storage array; 6. upon receiving a transportation completion signal of the peripheral storage access interface by CPU, enabling the multi-transmitting interface of feature storage array. 7. upon receiving a transportation completion signal of the multi-transmitting interface of feature storage array by CPU, repeating step 6.

Abstract: A stable conductive myocardial patch with a negative Poisson's ratio structure is provided. The preparation method includes preparing a myocardial patch substrate with concave polygons as the structural units by weaving or knitting, and then a conductive coating is coated on the surface of the substrate. Alternatively, the yarns can be processed into conductive coated yarns first, and then used as the raw material to weave or knit a stable conductive myocardial patch with a negative Poisson's ratio structure. The prepared myocardial patch has a relative resistance change of less than 5% at 50% tensile strain. When the strain of the structural units is within 50%, the fabric exhibits a negative Poisson's ratio structure, which expands in the perpendicular direction of the tensile load. The fabric exhibits a negative Poisson's ratio effect and anisotropy of Young's modulus, which matches the mechanical behavior of natural myocardium.

Abstract: The application relates to the field of biopharmaceuticals, in particular to tumor-targeting peptides and method for preparation and application thereof. The application discloses a tumor-targeting peptide. The tumor-target peptide displays better binding specificity and capability, thereby alleviates the effect of cancer treatment drugs on normal cells, reduces the incidence of adverse drug reactions, and improves the therapeutic effect.

Abstract: A stable conductive myocardial patch with a negative Poisson's ratio structure is provided. The preparation method includes preparing a myocardial patch substrate with concave polygons as the structural units by weaving or knitting, and then a conductive coating is coated on the surface of the substrate. Alternatively, the yarns can be processed into conductive coated yarns first, and then used as the raw material to weave or knit a stable conductive myocardial patch with a negative Poisson's ratio structure. The prepared myocardial patch has a relative resistance change of less than 5% at 50% tensile strain. When the strain of the structural units is within 50%, the fabric exhibits a negative Poisson's ratio structure, which expands in the perpendicular direction of the tensile load. The fabric exhibits a negative Poisson's ratio effect and anisotropy of Young's modulus, which matches the mechanical behavior of natural myocardium.

Abstract: Disclosed is a method for preparing 2,2?-dipyridine and derivatives thereof. The method includes: using pyridine represented by formula I or a derivative thereof as a raw material to generate 2,2?-dipyridine represented by formula II by performing dehydrogenative coupling under the action of a supported catalyst in the presence of additives, where R is H, C1-C2 alkyl, Cl, or Br. The method of the present invention features wide adaptability to raw materials, high atomic utilization rate, high catalyst activity, long service life, and fewer by-products.

Abstract: A method for preparing 1,1?-ethylene-2,2?-bipyridinium dichloride includes mixing an aqueous diquat dibromide solution with hydrochloric acid, adding dropwise to a mixture of an organic solvent, a bromine absorbent, and an oxidant, and reacting to produce 1,1?-ethylene-2,2?-bipyridinium dichloride.

Abstract: Disclosed is a method for preparing 2,2?-dipyridine and derivatives thereof. The method includes: using pyridine represented by formula I or a derivative thereof as a raw material to generate 2,2?-dipyridine represented by formula II by performing dehydrogenative coupling under the action of a supported catalyst in the presence of additives, where R is H, C1-C2 alkyl, Cl, or Br. The method of the present invention features wide adaptability to raw materials, high atomic utilization rate, high catalyst activity, long service life, and fewer by-products.

Abstract: A method for preparing 1,1?-ethylene-2,2?-bipyridinium dichloride includes mixing an aqueous diquat dibromide solution with hydrochloric acid, adding dropwise to a mixture of an organic solvent, a bromine absorbent, and an oxidant, and reacting to produce 1,1?-ethylene-2,2?-bipyridinium dichloride.

Abstract: Provided are fusion proteins of apoptin-protein transduction domain of carboxyl-terminus of EC-SOD, their encoding genes, the recombinant vectors containing said encoding genes, transformants containing said recombinant vectors, as well as the uses and preparation methods thereof. Especially provided are fusion proteins which fuse protein transduction domain of carboxyl-terminus of EC-SOD in the amino acid sequence of SEQ ID NO:1 or its mutants and apoptin in the amino acid sequence of SEQ ID NO:2 or its mutants, said fusion proteins have strong ability of inducing apoptosis of tumor cells, and can be used for manufacturing of medicament for the treatment of tumors.