Abstract: Provided is an amination method for a polystyrene-type resin, and a method for immobilizing an enzyme using an aminated polystyrene-type resin. The amination method includes: in a solvent, a catalyst is used to catalyze a polystyrene-type resin and an enamine salt to perform a Friedel-Crafts alkylation reaction, to obtain an aminated polystyrene-type resin, herein the catalyst is a Lewis acid catalyst. By means of the Friedel-Crafts alkylation reaction, the enamine salt is grafted onto the polystyrene-type resin, and the polystyrene-type resin is aminated. The conditions of the Friedel-Crafts alkylation reaction are easy to control, the post-treatment process is simple, and it is only necessary to remove the catalyst and the unreacted enamine salt by washing. Therefore, the above amination method in the present application has few steps and is simple and easy to implement. Meanwhile, the amination method further avoids the use of a noble metal catalyst, thereby reducing production cost.

Abstract: The application provides an enzyme immobilization carrier and a preparation method thereof, an immobilized enzyme and a preparation method thereof. The above enzyme immobilization carrier is obtained by an amino modification or a cyanuric chloride modification of super-crosslinked polyvinyl alcohol. The use of the enzyme immobilization carrier provided by the application may effectively improve the stability and reusability of the immobilized enzyme. Moreover, due to the use of the form of enzyme covalent linkage, compared with an embedding method, the preparation method is no need for chemical reagent immersion and the like, it is beneficial to maintain the own activity of the enzyme, and promote the immobilized enzyme to have the better activity while the stability and reusability are kept.

Abstract: A method for preparing liquid fuel by direct conversion of syngas uses the syngas as reaction raw material and conducts a catalytic conversion reaction on a fixed bed or a moving bed. The catalyst is a composite catalyst formed by compounding component I and component II in a mechanical mixing mode. The active ingredient of the component I is a metal oxide, and the component II is at least one of zeolites with one-dimensional ten-membered ring porous channels; and a weight ratio of the active ingredient in the component I to that in the component II is 0.1-20. The reaction process has high product yield and selectivity. The selectivity for liquid fuel composed of C5-C11 can reach 50-80%. The selectivity for aromatic hydrocarbon is less than 40% in C5-C11, while the selectivity for methane side product is less than 15%.

Abstract: This provides a flexible, porous, dissolvable solid sheet article containing a cationic surfactant.

Abstract: A self-heating control method and a self-heating control system for a rechargeable battery are disclosed. The rechargeable battery includes a battery core. A separator is provided between a positive electrode and a negative electrode of the battery core. A reference electrode is correspondingly provided at the separator. A surface electrode is correspondingly provided on the negative electrode surface of the battery core. The method includes: detecting the potential difference between the reference electrode and the surface electrode, generating a charging current adjustment instruction according to the potential difference between the reference electrode and the surface electrode, and adjusting the charging current of the rechargeable battery according to the charging current adjustment instruction during the self-heating process of the rechargeable battery.

Abstract: Provided are a bovine rotavirus fusion protein and calf diarrhea multivalent vaccine. The bovine rotavirus fusion protein contains a VP6 fragment, wherein the VP6 fragment contains an amino acid sequence as represented by SEQ ID NO. 4, and at least one loop region of the following (a)˜(c) is substituted with an antigenic epitope derived from bovine coronavirus and/or an antigenic epitope derived from E. coli: (a) amino acid residues of sites 168-177; with an amino acid sequence as represented by SEQ ID NO. 1; (b) amino acid residues of sites 194-205; with an amino acid sequence as represented by SEQ ID NO. 2; and (a) amino acid residues of sites 296-316, with an amino acid sequence as represented by SEQ ID NO. 3, The bovine rotavirus fusion protein contains a plurality of antigenic epitopes, and can enable a host to generate a plurality of antibodies after immunizing the host.

Abstract: A DCI size alignment method includes determining, by a communication device, whether a number of DCI sizes of a plurality of DCI formats meets a DCI size budget; and in a case that the DCI size budget is not met, performing a DCI size alignment operation on the plurality of DCI formats according to a DCI size alignment rule until the DCI size budget is met. The DCI size alignment rule includes at least one of: aligning a first DCI format with DCI 0_0 and/or DCI 1_0 in a CSS; aligning the first DCI format with DCI 1_1 and/or DCI 0_1 in a USS; aligning the first DCI format with DCI 1_2 and/or DCI 0_2 in the USS; aligning DCI 1_2 and/or DCI 0_2 in the USS with DCI 1_1 and/or DCI 0_1; or aligning the first DCI format with a group common DCI format in the CSS.

Abstract: An indication method of a power saving mode includes: instructing, by a network side device in a channel occupancy time (COT) of an unlicensed band, a terminal to enter a power saving mode.

Abstract: This provides a flexible, porous, dissolvable solid sheet article containing a cationic surfactant.

Abstract: Disclosed are a kitchen waste treatment system and a method thereof. The kitchen waste treatment system includes a control module, a drying module, an air extraction module, a grinding module and a temperature sensor all connected with the control module. The control module is for sending a first control signal, a second control signal and a third control signal according to a current working process in a determination that it is turned on normally. The drying module is for drying kitchen waste. The air extraction module is for extracting air from the kitchen waste. The grinding module is for grinding the kitchen waste. The temperature sensor is for detecting a temperature of the drying module. The control module is further for sending a stop command to the drying module in a determination that the temperature is higher than a preset temperature threshold.

Abstract: Disclosed in the present invention are a preparation method for a graphene oxide fiber, and fiber obtained thereby. A polyelectrolyte is prepared into a spinning stock solution by means of a wet spinning method, graphene oxide is added in a coagulation tank to serve as a coagulation bath, the spinning stock solution is injected into the coagulation bath, a diffusion reaction is carried out, and winding, washing and drying are carried out to obtain the graphene oxide fiber; the preparation method has the advantages that equipment is simple, the costs are low, the spinnability is good, and the method is suitable for large-scale production; moreover, the prepared fiber has multiple layers of fiber walls; the fiber has good tensile strength and a super-high specific surface area and is widely applied to the fields of catalysis, adsorption, flexible sensors, thermal preservation and insulation materials and tissue engineering.

Abstract: The present invention discloses a method for preparing a fiber with spatial structure, and the fiber prepared thereby and its use as well. In this method, the fiber is prepared through a wet spinning process, wherein a spinning solution prepared from low molecular weight polysaccharide based polyelectrolyte optionally with inert conductive material distributed therein, is injected through a syringe into a coagulation bath, which is formed by adding high molecular weight polysaccharide based polyelectrolyte into a coagulation tank. This method has the advantages such as simple equipment, low cost, good spinnability, and is applicable for large-scale production. The prepared fiber with spatial structure, especially the hollow multilayered fiber, has the controllable layers, cavities, and diameter, a high tensile strength, and an ultra-high specific surface area.