Abstract: A computing cluster includes a plurality of computing nodes. A method includes: obtaining an execution characteristic parameter of an application; obtaining, based on the execution characteristic parameter of the application and a load model, running time periods of the application when the application runs on different computing nodes, where the different computing nodes have different configurations; and determining, according to a preset policy, a configuration of a computing node that executes the application.

Abstract: A low-heat-loss operation method of a line-focusing heat collection system and the line-focusing heat collection system are provided. The method includes the following steps. Solar energy is utilized to preheat a collector tube in an empty tube state, so that the collector tube is in a preheating mode. After a set preheating temperature is reached, a heat transfer working medium is injected into the collector tube. In the injection process of the heat transfer working medium, an injection section of the collector tube is converted into a focusing mode from a preheating mode. After heat collection is finished, the circulation of the heat transfer working medium is stopped, and the focusing mode of the collector tube is kept. In the drainage process of the heat transfer working medium, an emptying section of the collector tube is converted into a light heat-tracing mode from a focusing mode.

Abstract: The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.

Abstract: A screw conveyor having auxiliary blades (10), and a screw discharge decanter centrifuge. A hollow internal cylinder (4) is provided with a tapered section (11) and a straight section (7). Screw blades (6) are provided on the periphery of the inner cylinder (4), and several auxiliary blades (10) are provided between the screw blades (6), wherein the width of the auxiliary blades (10) is smaller than the pitch of the screw blades (6). Two adjacent auxiliary blades (10) are arranged in a staggered manner in a screw passage space to form a serpentine flow passage (15).

Abstract: An integrated acoustic detection and rock direct tensile test machine includes a support frame. A top of the support frame is provided with a top plate and a bearing plate is provided above the top plate. The bearing plate is provided with force transferring rods, lower ends of which are provided with a tensile base. A top of the tensile base is provided with a lower clamp holder and a bottom of the top plate is provided with an upper clamp holder. An upper channel is provided inside the upper clamp holder. The upper channel is provided with an acoustic transmitting probe. A lower channel is provided inside the lower clamp holder. One end of the lower channel is communicated with the outside, the other end is provided with an acoustic receiving probe. The lower channel extends to a bottom of a clamping chamber of the lower clamp holder.

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.