730 results about "Carrier material" patented technology

The invention relates to an optically controllable switching device having a first and second line section, between which an optically controllable switch (T2) is inserted, and having a sensor element (SE). The optically controllable switch (T2) disconnects or connects depending on an optical switching signal (SB), whether the switch is "on" or "off". The sensor element (SE) comprises a carrier material (TM) with crystals comprising one or more paramagnetic centers (NV). When irradiated with pump radiation (LB), the sensor element (SE) emits fluorescent radiation (FL) which depends on the magnetic flux density B at the location of the sensor element (SE). A line current (I LTG) in the first line section of the line (LTG) generates a magnetic field with a flux density B which, with sufficient current strength, influences the fluorescent radiation (FL) from one or more paramagnetic centers (NV). The optically controllable switching device has first means (LWL1, PL1, LIV) for irradiating the one or more paramagnetic centers (NV) with pump radiation (LB) and second means (LWL2, F1, PD, LIV) for detecting and separating the fluorescent radiation (FL) and for detecting a measured value signal which depends on the intensity of the fluorescent radiation (FL) and / or on the phase shift of the modulation signal of the temporal profile of the intensity of the fluorescent radiation (FL). The optically controllable switching device has third means (LIV) for generating an optical switching signal (SB) and for controlling the state of the optically controllable switch (T2) using this optical switching signal (SB).The optical switching signal (SB) depends on the intensity of the fluorescence radiation (FL) and / or on the phase shift of the modulation signal of the temporal course of the intensity of the fluorescence radiation (FL).

The invention belongs to the field of nano-drug preparations, and discloses a multifunctional nano-enzyme platform and a preparation method and application thereof, and the multifunctional nano-enzyme platform is mainly composed of a nano-enzyme, a carrier material and a targeting substance. The synthesis of the nano-enzyme, the loading of the nano-enzyme on a carrier material and the modification of a targeting substance on the surface of the nano-enzyme are carried out through methods such as stirring synthesis, coprecipitation, strong acid oxidation, chemical reduction, covalent binding, a solvothermal method and physical adsorption. The targeting substance on the surface of the nano-enzyme platform can be accurately and efficiently positioned to an inflammation part, the meta-acid microenvironment of the inflammation part enables the targeting substance and the carrier material to be subjected to structural depolymerization, so that various nano-enzymes are released, and the nano-enzymes not only realize self-cascade and synergistic catalysis enhancement effects of the enzymes at the inflammation part, but also can be used for preparing the nano-enzyme. And a substrate self-circulation catalysis system is also formed, so that the effect of efficiently relieving and treating various inflammation-related diseases is achieved.

The invention discloses a Fe-MOF derivative / biochar nano composite material as well as a preparation method and application thereof, and belongs to the field of degradation of organic pollutants in a water body. The invention aims to solve the problems of unstable structure, easy agglomeration and the like at high temperature. The preparation method comprises the following steps: by taking an Fe-MOF derivative as a precursor and charcoal as a carrier material, carrying out in-situ synthesis on Fe-MOF, and carrying out high-temperature calcination on the surface of charcoal (BC). The metal carbon-based composite material prepared by the method shows excellent catalytic performance in catalytic degradation of tetracycline in a water body. Meanwhile, the prepared multiphase composite catalytic material has good stability and cycle performance.

The invention relates to a purely optical fuse with a first and second line section, between which an optically controllable switch (T2) is inserted, and with a sensor element (SE). The sensor element (SE) comprises a carrier material (TM) with crystals comprising one or more paramagnetic centers (NV). When irradiated with pump radiation (LB), the sensor element (SE) emits fluorescent radiation (FL) that depends on the magnetic flux density B at the location of the sensor element (SE). A line current (I LTG) in the first line section of the line (LTG) generates a magnetic field with a flux density B which, with sufficient current strength, influences the fluorescence radiation (FL) from one or more paramagnetic centers (NV). The optically controllable switching device has first means (LWL1, PL1, LIV) for irradiating the one or more paramagnetic centers (NV) with pump radiation (LB) and second means (LWL2, F1, PD, LIV) for detecting and separating the fluorescence radiation (FL) and for detecting measured values which depend on the intensity of the fluorescence radiation (FL) and / or on the phase shift of the modulation signal of the temporal progression of the intensity of the fluorescence radiation (FL). The purely optical fuse compares these measured values with intensity and / or phase shift threshold values.The optically controllable switching device has third means (LIV) for generating an optical switching signal (SB) depending on the comparison result and for controlling the state of the optically controllable switch (T2) with this optical switching signal (SB).

The invention discloses oligochitosan oligosaccharide, oligochitosan oligosaccharide composite nanoparticles as well as a preparation method and application thereof, and belongs to the technical field of nano materials and food engineering. According to the method disclosed by the invention, the chitosan oligosaccharide with the polymerization degree of 2-6 is prepared by adopting an ultrasonic-microwave synergistic compound enzyme enzymolysis method, so that the yield and the quality of the chitosan oligosaccharide are improved. The chitosan oligosaccharide and zein are assembled to form the chitosan oligosaccharide composite nanoparticles, the chitosan oligosaccharide composite nanoparticles have the advantages of being small in particle size and high in stability, the antioxidant function of the chitosan oligosaccharide is remarkably improved, the preparation method is simple, convenient, economical and practical, and the chitosan oligosaccharide composite nanoparticles can be used as food, health care products and medicine carrier materials and have good market application prospects.

The invention discloses a preparation method and application of silymarin spray curing nano-carrier powder, and relates to the technical field of medicines and the field of foods. The method comprises the following steps: firstly, constructing a silymarin-carrier compound through a molecular self-assembly technology, and then, carrying out curing treatment on a nano-carrier by adopting a spray drying technology, so as to obtain nano-powder with good flowability. According to the preparation method disclosed by the invention, the silymarin spray curing nano-carrier powder with a core-shell structure is successfully prepared by optimizing a carrier material ratio and spray drying conditions. Experimental results show that the spray-cured nano-carrier powder prepared by the method significantly improves the solubility and stability of silymarin, and enhances the bioavailability and efficacy, so that silymarin can be more efficiently absorbed and released in a targeted manner in vivo, thereby significantly improving the therapeutic effect.

Mobile or stationary air filter (L) or room fan (RL) according to Figure 1, comprising an outer wall (5), a (2) for generating an airflow (3) which is guided through an air filter material (1.1), an air inlet (2.1) and an air outlet (2.2), wherein the air filter material (1.1) contains poly(styrenesulfonic acid) (sulfonic acid biocide) (1.3) cross-linked with divinylbenzene and / or an acidic salt (1.3.1) (sulfonic acid biocide salt) of the sulfonic acid biocide (1.3) with biocidal cations, wherein the sulfonic acid biocide (1.3) and / or sulfonic acid biocide salt (1.3.1)(i) are positively and / or materially bonded to and / or in inert carriers and, in the fixed state, are in direct contact with carrier materials (1.1.7) on and / or in which biocidal Metal microparticles of a mean particle size d50 of 0.1 µm to <1,000 µm are fixed, and / or (ii) with carrier materials (1.1.7) on and / or in which biocidal metal microparticles of a mean particle size d50 of 0.1 µm to <1.000 µm are fixed, are mixed; its use and methods for the production and environmentally friendly disposal of air filter materials (1.1).

An electrical power module (300) for controlling an electric current through an electric motor (115) of a powertrain in a vehicle (105) comprises a carrier material (305) with a top surface (310); at least one semiconductor (335) mounted on the top surface (310), the semiconductor (335) being designed to control the electric current; and a housing element (360) attached to the carrier material (305) to define a first cooling channel (210) for a first cooling fluid (215), such that a wall of the first cooling channel (210) is defined by the carrier material (305) with the semiconductor (335).

The invention relates to the technical field of carbon-based flue gas purification catalysts, and particularly discloses a preparation method of a biomass-based activated carbon catalyst carrier material, which comprises the following steps: respectively acquiring product carbonization images at two different moments by using a camera, and processing the product carbonization images by using an image processing technology based on deep learning to obtain the biomass-based activated carbon catalyst carrier material. The method comprises the following steps: respectively extracting product carbonization characteristics in two images, intelligently estimating a product carbonization degree coefficient based on a product carbonization characteristic difference between the two images, and then further calculating the time still required for complete carbonization of the product by combining a time interval between two time points and the product carbonization degree coefficient. Therefore, by monitoring and accurately controlling the carbonization process in real time, the problem of non-uniform carbonization or excessive carbonization in the traditional process can be effectively avoided, so that the performance and the stability of the catalyst are improved.

The invention discloses a preparation method of a reverse water gas shift catalyst and an application thereof, comprising the following steps: S1: weighing a metal oxide precursor, a molybdenum oxide precursor and citric acid respectively and dissolving them in a beaker to obtain a mixed solution A; S2. adjusting the pH value of the mixed solution A with an acidic solution; S3. heating and stirring the mixed solution A in a water bath until it is in a gel state and drying, and then calcining it in a muffle furnace to obtain a carrier material; S4-S6. preparing a reverse water gas shift catalyst; the catalyst of the invention loads copper on the carrier material by a co-precipitation method, and the carrier material is reported for the first time, and has the advantages of simple preparation steps, easy availability of raw materials, safe operation, etc. At the same time, the catalyst obtained by the invention has an excellent CO conversion rate and a CO selectivity close to 100%.

A heat-transfer component defines a thermal-interface surface and has a composite thermal-interface material bonded to the thermal-interface surface. The composite thermal-interface material comprises a particulate filler material dispersed within a metallic carrier material having a solid-to-liquid phase-change temperature between about 60° C. and about 90° C. With a thermal-interface material bonded to the thermal-interface surface, the thermal-contact resistance between the thermal-interface material and the heat-transfer component can be reduced or substantially eliminated compared to conventional thermal-interface materials, including conventional metallic thermal-interface materials. The particulate filler material can have a higher bulk thermal conductivity than that of the metallic carrier material and can be wetted by the metallic carrier material, providing a bulk thermal conductivity of the composite thermal-interface material that is higher than that of the carrier material without the particulate filler material. Also disclosed are electrical devices having a heat generating component cooled by such a heat-transfer component.

The invention belongs to the technical field of electrochemistry, and provides a monatomic iridium-based alloy cluster catalyst and a preparation method and electrocatalysis application thereof, and the preparation method comprises the following steps: low-pressure gas-phase capillary filling: mixing an iridium organic metal precursor, a dopant metal organic precursor, a microporous carrier material and a solvent, and drying to obtain mixed powder, the mixed powder is placed in an ampoule bottle with a certain vacuum degree and sealed, then the ampoule bottle is placed in a rotary drying oven for high-temperature heat treatment, and powder a is obtained; temperature-controlled acid etching: mixing the powder a and an acid solution for reaction in the environment of protective gas to obtain black powder; the black powder is placed in H2 / Ar mixed gas for programmed heat treatment, and the monatomic iridium-based alloy cluster catalyst is obtained. The monatomic iridium-based alloy cluster catalyst prepared by the method provided by the invention shows mass activity and catalytic durability which are obviously superior to those of commercial platinum carbon in alkaline hydroxide catalysis, and has a practical application prospect.

The invention relates to a measuring head comprising an insulating body (IK), a first and second end fitting (EB1, EB2) with fastening means (BFE) for a line (LTG), and a sensor element (SE). The sensor element (SE) comprises a carrier material (TM), one or more crystals comprising paramagnetic centers (NV1), and a first and second optical waveguide (LWL1, LWL2), which may be identical to one another. The sensor element (SE) is mechanically connected to the first end fitting (EB1), which has fastening means (BFE) for fastening the line (LTG). The second end fitting (EB2) has means for fastening the first and / or second optical waveguide (LWL1, LWL2) to the first and / or second end fitting (EB2), respectively. The first and / or second optical waveguide (LWL1, LWL2) are guided within the insulating body (IK) in an electrically insulated manner from the first (EB1) to the second end fitting (EB2). The first end fitting (EB1).The first optical fiber (LWL1) and / or the second optical fiber (LWL2) are attached to the first end fitting (EB1). The second optical fiber (LWL2) detects fluorescent radiation (FL) from the sensor element (SE), while the first optical fiber (LWL1) transports pump radiation (LB) through the insulating body (IK) to the sensor element (SE) and irradiates the sensor element (SE) with pump radiation (LB). When irradiated with pump radiation (LB), the paramagnetic centers (NV1) of the sensor element (SE) emit fluorescent radiation (FL), which depends on the magnetic flux density B at the location of the sensor element (SE).

The invention discloses a carrier material with a photoresponse controlled release function, a preparation method of the carrier material and application of the carrier material in bio-based active packaging. According to the carrier material with the photoresponse controlled release function, an equal-net-shaped metal organic framework material-3 (IRMOF-3) is used as a matrix, and a photoisomerization group azobenzene is modified on the IRMOF-3 through functional modification, so that the carrier material with the photoresponse controlled release function is obtained; the carrier material is used for loading carvacrol and then is added into a sodium alginate-based film to prepare the bio-based active packaging film with photoresponse carvacrol release control performance, and meanwhile, the prepared packaging film has good tensile property, hydrophobic property and barrier property.

The invention belongs to the technical field of catalyst carrier materials, and particularly relates to a preparation method of mesoporous ultra-stable aluminum oxide. Pseudo-boehmite is prepared by adopting a double-aluminum method, alumina powder is obtained after roasting, a layer of fibrous pseudo-boehmite is prepared in the pore structure of the alumina powder, and the pore structure and the specific surface area of mesoporous super-stable alumina are controlled by controlling the crystallization pH value and the crystallization temperature in the reaction process. Sodium silicate and hexamethyldisilazane are added in the preparation process, so that the high-temperature stability of the mesoporous super-stable aluminum oxide is effectively improved, and the mesoporous super-stable aluminum oxide still has good specific surface area and pore volume under a hydrothermal condition. The mesoporous stable alumina is prepared by taking sodium metaaluminate and aluminum sulfate as main raw materials, and an organic solvent is not added as a template agent in the preparation process, so that volatilization of the organic solvent is effectively avoided, and the mesoporous stable alumina is green and environment-friendly.

The invention relates to a renewable industrial flue gas carbon dioxide adsorbent and a preparation method thereof. The method comprises the following steps: S1, mixing alkali metal, an aluminum oxide precursor, silicon oxide and a first solvent, or mixing an alkali metal solution, the aluminum oxide precursor, the silicon oxide and an optional second solvent, and then molding the mixed material to obtain microsphere particles; s2, mixing the microsphere particles and organic amine, and carrying out first loading treatment and drying treatment to obtain an organic amine loaded material; s3, roasting the organic amine-loaded material, mixing the obtained roasted material with a carrier material, and carrying out second loading treatment, so as to obtain the carbon dioxide adsorbent, the carrier material is selected from at least one of polystyrene-polyacrylic acid-polyethylene oxide, polymethyl methacrylate-b-polystyrene, zirconium oxide and a porous ceramic material. The carbon dioxide adsorbent is relatively high in adsorption capacity and relatively good in selectivity, reproducibility and stability; and large-scale industrial production and application are facilitated.

Purely optically controllable switching device for purely optical control of the current flow in a line (LTG), wherein the purely optically controllable switching device comprises a line (LTG) and where one line (LTG) comprises a first line section and wherein one line (LTG) includes a second line section that is different from the first line section and does not overlap, and wherein the purely optically controllable switching device comprises an optically controllable switch (T2) and wherein the purely optically controllable switching device comprises one or more purely optical sensor elements (SE) and wherein the optically controllable switch (T2) is positioned in the line (LTG) between the first line section and the second line section and wherein the optically controllable switch (T2) in an “on” state electrically connects the first line section of the line (LTG) with the second line section of the line (LTG) and wherein the optically controllable switch (T2) in an “off” state electrically separates the first line section of the line (LTG) from the second line section of the line (LTG) and wherein an optical switching signal (SB) determines which of these two states, "On" state or "Off" state, the optically controllable switch (T2) assumes, and wherein the respective purely optical sensor element (SE) of the one or more purely optical sensor elements (SE) comprises a respective carrier material (TM) with respective crystals comprising one or more respective paramagnetic centers (NV), and wherein the respective purely optical sensor element (SE) of the one or more purely optical sensor elements (SE) emits a respective fluorescence radiation (FL) when irradiated with respective pump radiation (LB), which depends on the respective magnetic flux density B at the respective location of the respective purely optical sensor element (SE), and wherein the respective purely optical sensor element (SE) of the one or more purely optical sensor elements (SE) is positioned relative to the first line section such that a line current (I LTG) in the first section of the line (LTG) a magnetic field with a respective flux density B is generated at the respective location of the respective purely optical sensor element (SE), such that, at sufficient current strength, one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) influence the respective fluorescence radiation (FL) of these one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) in a specific respective way with respect to the respective purely optical sensor element (SE), characterized by that the purely optically controllable switching device has first respective means (LWL1, PL1, LIV) assigned to the respective purely optical sensor element (SE) for irradiating the one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) with respective pump radiation and that the purely optically controllable switching device second means (LWL2, F1, PD, LIV) which are assigned to the respective purely optical sensor element (SE), - for detecting and separating the respective fluorescence radiation (FL) of the one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) and - for the acquisition of a respective measurement signal, which depends on the respective intensity of the respective fluorescence radiation (FL) of the respective paramagnetic centers (NV1) of the respective purely optical sensor element (SE) and / or on the respective phase shift Δt of the respective modulation signal of the respective temporal course of the respective intensity of the respective fluorescence radiation (FL) of the respective paramagnetic centers (NV1) of the respective purely optical sensor element (SE) relative to the respective modulation signal of the respective temporal course of the respective intensity of the respective pump radiation (LB) irradiating the respective paramagnetic centers (NV1) of the respective purely optical sensor element (SE), or relative to a signal associated with this respective signal (e.g., respective transmit signal S5) and / or its respective temporal course, - wherein the respective first means and respective second means may comprise common respective device parts (LWL1, LWL2) relating to a respective purely optical sensor element (SE) individually and / or relating to several purely optical sensor elements (SE) depending on the application, and that the purely optically controllable switching device has third means (LIV) to generate an optical switching signal (SB) and to control the state of the optically controllable switch (T2) with this optical switching signal (SB) and that the optical switching signal (SB, SB') is derived from one or more respective intensities of one or more respective fluorescence radiation (FL, FL') of the respective paramagnetic centers (NV1, NV1') of one or more purely optical sensor elements (SE, SE') and / or from one or more respective phase shifts Δt of one or more respective modulation signals of one or more respective time profiles of one or more respective intensities of one or more respective fluorescence radiation (FL, FL') relative to one or more respective modulation signals of one or more respective time profiles of one or more respective intensities of one or more respective pump radiation (LB, LB') or relative to one or more respective signals associated with one or more respective signals (e.g.,depends on the transmission signals S5, S5') and / or their respective temporal progressions.

The invention relates to the technical field of composite materials, in particular to a composite material for a waterproof breathable film and a preparation method of the composite material. The composite material for the waterproof breathable film comprises the following raw materials: PTFE resin, zinc oxide, a surfactant, a compatibilizer and a waterproof filler, the waterproof filler is a porous inorganic carrier material treated by a silane modified waterproof agent; the silane modified waterproof agent is a compound containing a perfluoropolyether chain segment and a siloxane chain segment. According to the prepared composite material for the waterproof and breathable film, the porous filler is subjected to surface modification through the perfluoropolyether-silane coupling agent, and the waterproofness, breathability and mechanical property of the PTFE composite material can be synchronously and synergistically improved.

The invention provides a novel underwater explosive formula and a preparation method. The novel underwater explosive formula comprises the following components in percentage by mass: 25%-30% of a high-energy explosive matrix, 10%-15% of an underwater stabilizer, 15%-20% of a water-soluble carrier material, 10%-12% of a waterproof coating and 30%-33% of a synergistic material. According to the novel underwater explosive formula and the preparation method, various high-performance materials and an environment-friendly stabilizer are adopted, and the underwater activity and efficiency of the explosive are improved through an innovative preparation process.

The invention discloses a zinc oxide photocatalytic composite material taking porous carbon silicon as a carrier as well as a preparation method and application of the zinc oxide photocatalytic composite material. The photocatalytic composite material is prepared from the porous carbon silicon as the carrier and zinc oxide with active sites. Compared with a pure zinc oxide material, the zinc oxide can be attached to the surface of the carrier porous carbon-silicon material or coated inside the carrier porous carbon-silicon material, and meanwhile, the carrier porous carbon-silicon material provides rich pore tissues, so that coloring agent molecules can be effectively adsorbed and captured, and the coloring agent is more stable in performance. The contact probability and area of zinc oxide active sites and coloring agent molecules are increased, so that the zinc oxide can fully play a role in photocatalytic degradation of dye molecules; and under the condition of the same amount of zinc oxide, the porous carbon-silicon loaded zinc oxide has a stronger photocatalytic degradation effect.

The invention discloses a natural clinoptilolite processing method for food and medicine industries. According to the method disclosed by the invention, heavy metals and radioactive impurities in zeolite pore channels can be accurately and directionally desorbed through a super-medium freezing and microwave-infrared coupling technology, and the purity of a final product is ensured to reach a food-grade standard. The supercritical CO2 gradient extraction further strengthens the capability of removing residual pollutants and effectively eliminates harmful substances such as organochlorine pesticides, so that the zeolite micro-powder meets the high cleanliness requirement of a medical carrier material, the natural microporous structure of zeolite is protected, deep decontamination is realized, a safe and reliable base material is provided for subsequent application, and the application range of the zeolite micro-powder is widened. Through low-temperature environment and supersonic airflow crushing, the agglomeration phenomenon of particles caused by mechanical friction is avoided, and meanwhile, the dispersion stability of the powder is enhanced through application of the surface modifier. The modular design of the integrated device is matched with an intelligent dynamic regulation and control system, and efficient connection and energy consumption optimization of the technological process are achieved.

The application discloses a method for preparing a metal organic framework film by magnetic field induction regulation control. The method comprises the following steps: vertically immersing a sheet carrier into a film forming solution of the metal organic framework film; placing a container provided with the film forming solution and the carrier into a uniform magnetic field; and standing for 4-24 hours to obtain the metal organic framework film prepared by the magnetic field induction regulation control. The metal organic framework film is a cobalt-based, nickel-based or iron-based metal organic framework film. The carrier material comprises alumina, porous carbon and porous organic material. The magnetic field direction is perpendicular to or parallel to the surface of the carrier. The metal organic framework film prepared by the application has excellent gas separation performance, and the film forming process is simple, convenient, easy to enlarge and popularize.

The invention provides a tungstate-based flexible composite material with a multimode dynamic color change characteristic, which comprises an optical function material and a carrier material, the optical function material is tungstate-based fluorescent powder, and the tungstate-based fluorescent powder comprises Li (1-x) YW2O8: xEu (0% lt; xlt; 10%). According to the tungstate-based flexible composite material with the multimode dynamic color changing characteristic and the preparation method of the tungstate-based flexible composite material, a force-induced and light-induced multimode dynamic light-emitting composite material is prepared by mixing a polydimethylsiloxane solution A and a polydimethylsiloxane solution B in proportion and adding a certain amount of fluorescent powder LiYW2O8: Eu < 3 + >, and the tungstate-based flexible composite material with the multimode dynamic color changing characteristic can be obtained only through simple temperature change. According to the present invention, the change of the light emitting characteristic can be observed according to the temperature of the tungstate fluorescent powder, such as the hand temperature or the environment temperature, such that the temperature change photoluminescence material of the dynamic mechanoluminescence tungstate-based fluorescent powder has characteristics of large temperature change range, good stability, high light emitting efficiency and no environmental pollution, and most importantly, the mechanoluminescence does not need energy charging, and has the self-recovery effect.

The invention relates to the technical field of agricultural gardening, and discloses an efficient gardening fertilizer, which comprises the following components by mass: 40-60% of a base fertilizer; 10%-30% of a carrier material; 5%-10% of an adjusting component; the ratio of nitrogen to phosphorus to potassium in the basic fertilizer is 20-10 to 10; the carrier material comprises bentonite and diatomite, and the weight ratio of the bentonite to the diatomite is (5: 5)-(7: 3); the bentonite is subjected to acid treatment, and the acid treatment condition is that the bentonite is mixed with a 1M hydrochloric acid solution. Precise slow release of main nutrients such as nitrogen, phosphorus and potassium in the fertilizer is achieved by adopting a carrier material and a multi-layer coating technology, the surfaces of fertilizer particles are coated with chitosan and kieselguhr in a double-layer mode, permeation of water and nutrients is effectively regulated and controlled, the release speed of the fertilizer nutrients is matched with the plant growth requirement, excessive loss and waste of the nutrients are reduced, and the yield of the fertilizer is increased. The fertilizer efficiency period is prolonged.

The invention relates to a composite hydration heat inhibitor as well as a preparation method and application thereof. The composite hydration heat inhibitor comprises: a phase change material; the carrier material is loaded on the surface of the phase change material to form a shell, and the carrier material and the phase change material form a core-shell structure material; the chemical inhibitor is connected with the core-shell structure material modified by the surface modifier to form a composite hydration heat inhibitor; the mass ratio of the phase change material to the chemical inhibitor in the composite hydration heat inhibitor is (3-5): 1. The technical problem to be solved is how to provide the composite hydration heat inhibitor, increase the content of a phase change material in the composite hydration heat inhibitor, avoid direct contact between a large amount of the phase change material and concrete, reduce the use amount of a chemical inhibitor and improve the durability of the mechanical strength of the concrete.

The invention belongs to the field of biomedical materials and manufacturing thereof, and discloses a composite 3D printing stent with a time sequence regulation blood vessel and bone tissue regeneration function as well as a preparation method and application of the composite 3D printing stent. The method comprises the following steps: respectively loading an osteogenesis inducer and a vascular induced differentiation agent into two carrier materials with different degradation rates, and carrying out 3D printing and gel coating modification according to a reverse sequence of a physiological repair process of carrying out vascularization first and then carrying out osteogenesis to form a composite 3D printing stent of which the inner layer is loaded with the osteogenesis inducer and the outer layer is loaded with the vascular induced differentiation agent. After the composite 3D printing stent is implanted into a body, according to different degradation rates of the composite material, the repair and regeneration process of vascularization and osteogenesis is realized in a manner of degrading the gel coating and degrading the 3D printing stent, and the composite 3D printing stent has good living compatibility, biological activity and mechanical properties, and has good application prospects. The material can be used as a biomedical material for repairing or treating bone defects or self-repairing, and has a good application prospect in treatment and self-repairing of bone defects.

The invention belongs to the technical field of nano material energy storage, and provides a nitrogen-doped cellulose-based carbon nano carrier material and a preparation method and application thereof, and the preparation method comprises the following steps: (1) pretreating nano cellulose sol to obtain a uniformly distributed nano cellulose solution; (2) freezing the nanocellulose solution, and performing vacuum drying to obtain nanocellulose aerogel; (3) carrying out pre-carbonization treatment on the nanocellulose aerogel in an inert atmosphere, and cooling to obtain nanocellulose carbon aerogel; and (4) placing the nanocellulose carbon aerogel in urea powder, and carrying out high-temperature vapor deposition in an inert atmosphere to obtain the nitrogen-doped nanocellulose-based carbon nano-carrier material. According to the nitrogen-doped cellulose-based carbon nano-carrier material, the selected raw material of the carbon nano-carrier material is plant fiber, the carbon nano-carrier material has very high mechanical strength, wide sources and low cost, and the prepared nitrogen-doped cellulose-based carbon nano-carrier material has good surface wettability and excellent conductivity and stability.

The invention provides a phospholipid type DHA (Docosahexaenoic Acid) synthesis method based on immobilized phospholipase A1 of a magnetic composite material MnFe2O4-SiO2. The method comprises the following steps: (1) preparing MnFe2O4 magnetic nanoparticles by adopting a hydrothermal method; (2) coating the surface of the MnFe2O4 with SiO2 through a chemical precipitation method, so as to prepare a MnFe2O4-SiO2 composite material; (3) by using phospholipase A1 (PLA1) as a catalytic enzyme, immobilizing PLA1 on the surface of the MnFe2O4-SiO2 composite material through a chemical crosslinking or physical adsorption method; (4) under optimized reaction conditions, catalyzing free fatty acid to react with phospholipid by the immobilized enzyme to synthesize phospholipid type DHA; and (5) separating and recovering the immobilized enzyme through an external magnetic field, and after the immobilized enzyme is repeatedly used for 5-10 times, keeping the catalytic activity of 65-75%. According to the method, the stability and reusability of the enzyme can be remarkably improved, the production cost is reduced, and meanwhile, the method is applied to catalytic synthesis of the phospholipid DHA and has a wide industrial application prospect.

The invention relates to an optically controllable switch (T2) with a sensor element (SE). The sensor element (SE) comprises a carrier material (TM) with crystals and paramagnetic centers (NV). When irradiated with pump radiation (LB), the sensor element (SE) emits fluorescent radiation (FL) that depends on the magnetic flux density B at the location of the sensor element (SE). A conduction current (I LTG ) in an inner line section (LTG +) generates a magnetic field with a flux density B such that, at sufficient current strength, the fluorescent radiation (FL) influences paramagnetic centers (NV1). Preferably, the optically controllable switch (T2) comprises a microelectronically manufactured semiconductor switch having the electronic switching component. Preferably, the respective sensor element (SE) is a respective microstructured sensor element (SE) on the surface of the microelectronically manufactured semiconductor switch and / or in the metallization stack of the microelectronically manufactured semiconductor switch.

The application provides a preparation method of a single-atom catalyst, and comprises the following steps: (1) heat treating nitrogen-doped carbon material in an inert atmosphere to obtain a graphene-like carrier material; (2) mixing the graphene-like carrier material with a solvent, preparing a graphene-like dispersion liquid through ultrasonic treatment, and drying the graphene-like dispersion liquid in a protective atmosphere through low-temperature staged drying to obtain a foam metal-graphene-like material; and (3) performing liquid-phase ultrasonic stripping on the foam metal-graphene-like material to obtain a single-atom catalyst. Compared with the prior art, the application eliminates the high-temperature treatment of the foam transition metal in a reducing atmosphere, and compared with the traditional high-energy-consumption high-temperature (above 500 DEG C) treatment method, the method is more moderate and has lower production cost.