11results about How to "Evenly groomed" patented technology

The invention discloses a preparation method of a high-stability photoresponse covalent organic framework membrane and application of the high-stability photoresponse covalent organic framework membrane in selective separation of multiple components. 4-azido azobenzene is prepared by carrying out azido reaction on 4-aminoazobenzene in an acidic aqueous solution, and then a BPTA-TAPB-COF membrane is used as a matrix to prepare the high-stability photoresponse covalent organic framework membrane. 4-azido azobenzene is efficiently grafted to the pore wall of the BPTA-TAPB-COF membrane through a click chemical reaction, the photoresponse covalent organic framework membrane is constructed, and the covalent organic framework membrane can be used for multi-component selective separation and is suitable for multi-component systems with different sizes. The azobenzene group in the pore channel of the prepared Azo-COF membrane is subjected to reversible cis-trans isomerization under the irradiation of ultraviolet / visible light, the response speed is high, and the cycle performance is good; the Azo-COF membrane has good application in the light-operated nanofiltration process, the performance of the Azo-COF membrane is not reduced after the Azo-COF membrane is continuously recycled for 12 days, and the structure of the Azo-COF membrane is kept stable.

Compositions and methods for treating diseases associated with aberrant glycosylation of cell surface molecules and expression of tumor-associated carbohydrate antigens (TACAs) are provided. Also provided are bispecific fusion proteins and chimeric antigen receptors (CARs) having specificity for tumor associated carbohydrate antigen (TACA-CAR), vectors encoding the TACA-bispecific fusion proteins and CARs, and recombinant cells comprising the TACA-bispecific fusion proteins and CARs.

The invention belongs to the technical field of material science and electro-catalysis, and discloses an amine-modified copper gas diffusion electrode and pulse electro-catalysis C-N coupling application thereof.The amine-modified copper gas diffusion electrode is obtained by spraying and loading copper nanoparticles on the surface of carbon paper to obtain the copper gas diffusion electrode, and then continuously spraying and loading amine on the surface of the copper gas diffusion electrode to obtain the amine-modified copper gas diffusion electrode. The method is easy to operate, the obtained gas diffusion electrode is stable in structure and uniform and effective in amine modification, when the gas diffusion electrode is used for electro-catalysis C-N coupling, the microenvironment on the surface of a catalyst can be regulated and controlled through pulse potential, C-N coupling reaction is promoted, and high urea yield and Faraday efficiency are achieved.

A range hood has a recessed cavity at the bottom of its fixed housing to accommodate a lifting air intake. The lifting air intake has a smoke-collecting chamber. An oil guide plate is provided on the front side of the recessed cavity. The front side of the oil filter plate at the top of the smoke-collecting chamber has a forward-sloping surface extending downwards. An oil guide connecting plate extending upwards and backwards is installed on the oil guide plate. The rear part of the oil guide connecting plate has an extension extending below the forward-sloping surface. A first oil guide groove is formed between the oil guide connecting plate and the oil guide plate. Oil falling into the first oil guide groove enters the oil cup through oil guide channels on both sides of the fixed housing. The first oil guide groove of this range hood can smoothly guide the condensed oil on the front side. After setting the oil guide connecting plate, the height of the rear plate below the oil guide plate, which cannot hold oil, is reduced, and the length of the forward-sloping surface in the front-back direction is shortened. This helps to reduce the size of the air intake, making it less likely for the air intake to interfere with the solid housing. Sufficient installation space is left on the front side of the bottom of the housing for installing components such as lighting. The structural layout is more compact and reasonable.

The utility model discloses a vibrating feeder panel structure which comprises a panel, a plurality of stepped boss sets are arranged on the surface of the panel at equal intervals in the conveying direction, each stepped boss set is composed of three bosses, the heights of the three bosses are sequentially increased in the panel conveying direction, and a stepped pushing structure is formed. The boss is of a composite structure and sequentially comprises an arc-shaped wear-resistant head part, an elastic connecting part and a bottom plate from top to bottom; the upper end of the elastic connecting part is fixedly connected with the arc-shaped wear-resistant head part, and the lower end is fixedly connected with the bottom plate; according to the panel structure of the vibrating feeder, the stepped boss sets with the heights gradually increased in the conveying direction are arranged on the surface of the panel, a stepped pushing structure is formed, iron ore aggregates can be effectively dispersed, accumulation is avoided, and the conveying efficiency is improved.

The invention discloses a neural electrode modified by an atomic-scale dispersed metal catalytic material at an ultra-normal temperature and a preparation method thereof, and the preparation method comprises the following steps: carrying out roughening treatment, cleaning and drying on the surface of a metal wire to obtain a neural electrode substrate; coating and insulating other parts, except the electrode recording site, of the neural electrode substrate by using a polyimide solution; an atomic-scale dispersed metal catalytic material modified neural electrode interface is prepared in an ultra-normal-temperature environment in a constant-current mode of an electrochemical three-electrode system; according to the electrode, the effective contact area of an electrode interface can be increased, the electron transport capacity can be enhanced, the efficient biological catalytic activity of the atomic-scale dispersed metal catalytic material can be exerted, the inflammatory reaction of an electrode-tissue interface is reduced, scar tissue formation is reduced, the biocompatibility of the neural electrode is greatly improved, and the application prospect is wide. And the signal quality of long-term recording and the detection sensitivity are improved.

The present disclosure provides modified immune cells (e.g., modified T cells) comprising a chimeric antigen receptor (CAR) with affinity for prostate-specific membrane antigen (PSMA) (e.g., human PSMA). The present disclosure provides modified immune cells (e.g., modified T cells) comprising CAR with affinity for PSMA and a dominant negative receptor and / or a conversion receptor. The present disclosure provides modified immune cells (e.g., modified T cells) comprising CAR with affinity for PSMA and a dominant negative receptor and / or a conversion receptor, wherein the modified cells are capable of expressing and secreting bispecific antibodies.

The invention relates to the technical field of sensing detection, in particular to a hydrogen-sensitive color-changing dye and a preparation method thereof. The hydrogen-sensitive color-changing dye takes a-WO3 / Pd quantum dots as a main effective component. The preparation method of the a-WO3 / Pd quantum dot comprises the following steps: placing a tungsten sheet as an anode in an electrolyte for anodic oxidation to obtain a quantum tungsten oxide solution; mixing a potassium hypochloropalladate solution with the quantum tungsten oxide solution to obtain a reaction solution; and carrying out ultraviolet irradiation on the reaction liquid to obtain the a-WO3 / Pd quantum dot. The a-WO3 / Pd quantum dots are prepared through an anodic oxidation-ultraviolet reduction method, the hydrogen-sensitive color-changing dye with excellent hydrogen-sensitive color-changing performance is prepared through further dispersion, when the dye is exposed to low-concentration hydrogen (200 ppm), chromatic aberration can be distinguished and recognized by naked eyes, and the dye can be applied to important fields such as hydrogen track conveying, hydrogen storage equipment protection and hydrogen operator protection and has good application prospects. The method has a wide application scene and a huge value space.

The invention relates to a bismuth oxide core-shell nanoparticle modified porous defect-rich carbon nitride material as well as a preparation method and application thereof. The method comprises the following steps: calcining urea in an air atmosphere to obtain the bismuth oxide core-shell nanoparticle modified porous defect-rich carbon nitride material; calcining in an atmosphere to obtain porous defect-rich carbon nitride; mixing an ethylene glycol liquid, a nitric acid solution, polyvinylpyrrolidone and the solid at room temperature to obtain a mixed solution, placing the mixed solution in a reaction kettle, carrying out water bath heating to generate a precipitate, filtering out the precipitate, and cleaning, drying and grinding the precipitate to obtain a powdery solid, the bismuth oxide core-shell nanoparticle modified porous defect-rich carbon nitride material is obtained. The material prepared by the invention is high in response capability to the sum.

The invention discloses an integrated heat dissipation module of a computer case, and relates to the technical field of heat dissipation of computer cases. The device specifically comprises a mounting plate fixed to an inner cavity of a case, a swing mechanism is arranged at the top of the mounting plate, an adsorption assembly is clamped to the end of the swing mechanism, a heat dissipation assembly is arranged at the top of the swing mechanism, a heat conduction coil pipe is wound around the inside and the outside of the heat dissipation assembly, and fixing screws are arranged at the four corners of the top of the mounting plate. The heat dissipation assembly comprises fixing frames, heat insulation plates, side frames, W-shaped copper pipes, a top frame and inserting grooves, the two fixing frames are connected to the inner wall of the case through bolts, the inserting grooves are formed in the four corners of the opposite sides of the two fixing frames, the W-shaped copper pipes are inserted into the inserting grooves, and the side frames are sequentially welded to the outer surfaces of the W-shaped copper pipes at equal intervals. The problem that the heat dissipation effect becomes poor due to the fact that the heat dissipation space of a heat dissipation module in a traditional case is compressed is solved, the heat conduction area is increased, the heat dissipation efficiency is improved, and the problem that the local temperature is high due to heat gathering is solved.

The invention discloses a cable supporting mechanism with a holding device, and relates to the technical field of cable supporting. The device specifically comprises an auxiliary frame, a stretching mechanism is arranged on one side of the middle of the bottom of the auxiliary frame, supports are slidably connected to the two ends of the top of the auxiliary frame, clamping mechanisms are arranged at the tops of the supports, wire guiding mechanisms are arranged at the clamping ends of the clamping mechanisms, cables are inserted into the wire guiding mechanisms, and sliding rods are fixedly connected to the two inner sides of the auxiliary frame correspondingly; a spring is fixedly connected to the inner end of the auxiliary frame, a sliding hole is formed in the outer wall of the middle of the top of the auxiliary frame, a sliding block is slidably connected into the sliding hole, and the sliding block is fixedly connected with the stretching end of the stretching mechanism. According to the cable tensioning device, when a cable is tensioned, the cable is limited and guided through the I-shaped guide wheel, the I-shaped guide wheel rotates, it is guaranteed that the cable is stable and dredged, meanwhile, a certain supporting and limiting effect is achieved, the clamping accuracy of the clamping assembly is guaranteed, and the problem that the cable is loosened is solved.