10results about How to "Efficient introduction" patented technology

The invention relates to a low-heat-conduction high-strength phase change energy storage wallboard and a preparation method and application thereof.The phase change energy storage wallboard comprises a wallboard base material D and a phase change material, the wallboard base material D is a cement-based material with a directional communication pore channel structure, and the phase change material is loaded in the directional communication pore channel structure. The preparation method comprises the following steps: preparing a wallboard base material D with a directional communicated pore channel structure through a freeze casting method; loading the phase change material into the wallboard base material D through a vacuum impregnation method to obtain a wallboard base material E; the wallboard base material E is put into a temperature control curing room to be cured for 1-2 days, and the low-heat-conduction and high-strength phase change energy storage wallboard is prepared. Compared with the prior art, the contradictory requirement between the heat conductivity and the strength of the wallboard is met, the vertical bearing capacity of the wallboard is greatly improved, and the heat conductivity coefficient of the wallboard is remarkably reduced. The phase change energy storage wallboard has extremely high mechanical properties and flexible and efficient temperature regulation and control effects.

The invention discloses a rainwater collecting and recycling treatment device, and relates to the technical field of rainwater treatment.The rainwater collecting and recycling treatment device comprises a plurality of splicing mechanisms used for building a rainwater collecting pool, the splicing mechanisms are internally provided with joining mechanisms for improving the supporting strength of the splicing mechanisms, and the splicing mechanisms are internally provided with joining openings. The first mounting pipe and the first taper pipe are connected in an inserted mode, tight butt joint between two parts is ensured, the first mounting pipe is inserted into the first taper pipe, the contact area is increased, the stability of the joint is improved, and the connecting block is clamped with the clamping pipe and the second clamping groove, so that the clamping effect is improved through the clamping mechanism. According to the connecting structure, the connecting blocks can be firmly spliced together to form a supporting net rack with high integrity, and when a plurality of cross-shaped connecting blocks are spliced together, the supporting capacity of the butt joint position of the first taper pipe is greatly enhanced, and deformation or breakage caused by water pressure or external loads is prevented.

The utility model discloses a lightning protection mechanism of a power distribution cabinet for power transmission, and belongs to the technical field of power transmission equipment. The device mainly comprises a synchronous driving unit, the synchronous driving unit is installed at the top of the power distribution cabinet and drives a retracting and releasing unit to rotate at the top of the power distribution cabinet, the retracting and releasing unit comprises a worm, a worm gear and a rotating rod, the worm is in meshed connection with the side wall of the worm gear, and the rotating rod is in key connection with the interior of the worm gear. One end of each rotating rod is rotationally connected to the inner side wall of the power distribution cabinet through a bearing seat, the other end of each rotating rod is fixedly provided with a lightning protection unit, and the synchronous driving unit is matched with the retracting and releasing unit, so that flexible retracting and releasing of the lightning protection units are achieved. In no thunder and lightning weather, the lightning protection unit can be recycled into the power distribution cabinet, external environment erosion is reduced, and the service life of the lightning rod, the insulating base and other components is prolonged.

The present invention aims to provide a novel drug delivery system (DDS) technique capable of selectively delivering a drug (compound containing oligonucleotides for producing at least partially functional dystrophin protein) to muscle tissues such as cardiac muscle, skeletal muscle and the like and efficiently introducing the drug into the muscle cells. The present invention relates to a conjugate or a salt thereof including the following: (1) a peptide that binds to a transferrin receptor, and contains the amino acid sequence shown in SEQ ID NO: 1 (Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys); or an amino acid sequence resulting from substitution, deletion, addition, and / or insertion of not less than one and not more than 10 amino acid residues in the amino acid sequence shown in SEQ ID NO: 1, and (2) a compound comprising an oligonucleotide for producing an at least partially functional dystrophin protein.

The present application relates to a kind of synergistic flame-retardant low melting point polyester chip for polyester sheath-core and its preparation method, the melting point of product is reduced by introducing part of asymmetric isomer of terephthalic acid in esterification process, while introducing part of symmetric structure alcohol with small difference with ethylene glycol, the chain regularity is less damaged, a small amount of introduction will not significantly damage the crystallization ability of product while reducing the melting point. After esterification, by means of blending and co-melting and alcoholysis repolymerization, flexible chain segment (‑O‑(CH2)4‑O‑) with fast crystallization speed is introduced to improve the crystallization performance of product, and finally the modified synergistic flame retardant is added. Nitrogen, phosphorus and silicon elements are introduced into the product chain segment during polycondensation reaction, and a triple protection system covering condensed phase, gas phase and interface is formed through the multidimensional complementary action of the three elements during combustion. Through the above steps, polyester chip for polyester sheath-core with high flame retardancy, low melting point and high crystallinity is finally synthesized.

The present invention relates to a method for impregnating ceramic powder in a fiber bundle, which comprises providing an impregnation slurry and a fiber preform to be impregnated respectively, wherein the impregnation slurry is provided by dispersing ceramic powder in a solvent, and the fiber preform to be impregnated is provided by ultrasonically dispersing the fiber bundle in a medium to disperse adjacent fibers in the fiber bundle, the power of ultrasonic dispersion is 20kw~50kw, and the frequency of ultrasonic dispersion is 50kHz~120kHz; the fiber preform to be impregnated is placed in the impregnation slurry for ultrasonic impregnation to introduce the ceramic powder into the fiber bundle, wherein the power of ultrasonic impregnation is 1kw~20kw, and the frequency of ultrasonic impregnation is 10kHz~100kHz; the impregnated fiber preform is naturally dried to form a fiber impregnation material structure in which the ceramic powder is uniformly filled in the fiber bundle. The method for impregnating ceramic powder in a fiber bundle according to the present invention is efficient, energy-saving, environmentally friendly, and easy to operate.

A sterilized dry hydrogel-forming article comprising a crosslinked product of a vinyl alcohol polymer having a bioactive substance conjugated thereto. A hydrogel comprising a crosslinked product of a vinyl alcohol polymer having an ethylenically unsaturated group and a carboxy group and a bioactive substance having an amino group, the carboxy group of the crosslinked product and the amino group of the bioactive substance being covalently bound via an amide bond.

The invention relates to a data layering method and system based on AOP section programming, and belongs to the field of data processing, and the method comprises the following steps: (1) using AOP section programming to overview data components; (2) abstractly establishing a business model for layering the data component based on the overview data component; (3) monitoring business object change, and executing data hierarchical control; and (4) based on the configured data change diff algorithm, comparing data changes before and after approval, and generating a change log. The method and the system have the advantages that the method and the system can be introduced in a low-coupling and high-efficiency manner in a business function implementation process, so that the effects of business management, auditing and production data layering can be achieved, the quick change of business data is met, and the isolation of management process data and production data is completed; and meanwhile, through adjustment of a data change configuration protocol, affordable change auditing can be met.

The present disclosure provides an artificially synthesized peptide fragment capable of efficiently introducing a target foreign substance from outside a eukaryotic cell into at least the cytoplasm of the cell. A peptide fragment disclosed herein is for introducing a target foreign substance from outside a eukaryotic cell into at least the cytoplasm of the cell, the peptide fragment being configured such that two or more of amino acid sequences VVKSLVK (SEQ ID NO: 1) are arranged in series, and another amino acid residue is not included between the amino acid sequences or a peptide linker composed of 1 to 5 amino acid residues is interposed between the amino acid sequences.

This invention belongs to the field of chemical synthesis technology, specifically relating to a method for preparing 2-methyl-1H-phenylenehydride. The method includes the following steps: using acetic acid and 1,8-diaminonaphthalene in a molar ratio of 2.5~5.5:1 as reactants, and water as the reaction medium, at 100℃~185℃, one amino group of 1,8-diaminonaphthalene undergoes a condensation reaction with the carboxyl group of acetic acid, removing one water molecule to obtain a product intermediate containing an amide bond. The other amino group on the intermediate undergoes an intramolecular cyclization reaction with the carbonyl group in the amide bond, removing one water molecule to obtain a crude product. The crude product is then purified to obtain the 2-methyl-1H-phenylenehydride. The 2-methyl-1H-phenylenehydride prepared using the method of this invention can achieve a purity of up to 98%.