37results about How to "Control interaction" patented technology

The invention discloses a method for guiding fixed-point cell growth by preparing chemical micro-patterns on the surfaces of various materials. The preparation process comprises the following steps of: 1) hydroxylating the surfaces of a glass sheet, a quartz sheet, a silicon sheet, a transition metal oxide and the like and coating dopamine on the surface of polymer or other inorganic materials; 2) obtaining dense anti-protein adsorption films on the pretreated surfaces by molecular self-assembly or an atom transfer radical polymerization method, wherein the dense anti-protein adsorption films are polyethylene glycol films or polyethylene glycol methacrylate films; and 3) covering mask plates on the anti-protein adsorption films, performing ultraviolet irradiation and adding fibronectin to obtain protein micro-patterns; and inoculating cells to obtain the cell patterns. The method has the advantages of simple operation, low cost, mild preparation conditions and no need of super clean experimental conditions. By adopting the method, stable and high-selectivity cell micro-patterns can be obtained on the surfaces of various materials; and the method has a broad application prospect in the fields of basic researches on cell biology, tissue engineering, drug screening and cell-based biosensors.

The invention relates to a gel injection combining a molecular targeted drug and a cytotoxic drug. The gel injection comprises a small molecular targeted drug, a traditional cytotoxic drug, a temperature-sensitive material, a solvent and pharmaceutical excipients, wherein the temperature-sensitive material is selected from poloxamer, polylacticacid-polyethylene glycol-polylactic acid or polyglycolide lactide-polyethylene glycol-polyglycolide lactide and the like; the solvent is selected from water, brine salt or 5% glucose aqueous solution and the like, the prepared gel injection can be injected intratumorally or peritumorally, the anti-tumor effect is obvious, and the side effects are fewer.

The invention relates to a high density ultramicro formation testing working solution and a preparation method thereof. The high density ultramicro formation testing working solution comprises the following raw material components in parts by weight: 100-500 parts of water, 0.1-10 parts of high temperature resistance dispersing agent, 0.1-10 parts of high temperature resistance dispersion stabilizer, 0.6-2.0 parts of sodium hydroxide, 5-30 parts of anti-agglomerant, 0.1-10 parts of flow pattern modifier, 0.1-8 parts of filtration control agent, and a weighting agent, and the density of the high density ultramicro formation testing working solution is 1.5-2.5g / cm<3>. The preparation method comprises the following steps of: sequentially adding the raw materials into the water under the condition of stirring, and after uniform blending, obtaining the high density ultramicro formation testing working solution. The high density ultramicro formation testing working solution has excellent high temperature sedimentary stability and rheological property, and is applicable to formation testing working conditions of a deep well and an ultra deep well.

The invention relates to a fluoride nanometer crystal for wideband optical amplification and a preparation method and application of the fluoride nanometer crystal in the technical field of materials science. According to the fluoride nanometer crystal for the wideband optical amplification, NaYF4: Yb, Re@NaYF4 or NaGdF4: Yb, Re@NaGdF4 nanometer crystal is in a monodisperse nucleocapsid structure. Laser of 980nm is used for exciting the monodisperse nanocrystal, and multi-band near infrared luminescence is produced; the peak position of a luminous peak is freely mixed with the fluoride nanometer crystals at different wave bands, so that the near infrared luminescence using a rare earth ion as a luminescence center is formed, and the effective bandwidth is enlarged. For the nanometer crystal in the monodisperse nucleocapsid structure with the near infrared luminescence is in a hexagonal phase structure, the luminescence center is free from the influence of high energy groups, the lower conversion luminescence efficiency and the luminous intensity are effectively improved, and the fluoride nanometer crystal is extremely suitable for the wideband optical amplification.

The invention discloses an equipment controlling method and device, control equipment and a storage medium. The method comprises the steps of: when a user watches first equipment, determining an identity of the first equipment according to image information of the first equipment and acquiring eye images and motion information of the user; determining a to-be-executed interactive operation instruction according to watching points corresponding to the eye images and the motion information; determining an identity of second equipment according to image information of the second equipment when the user watches the second equipment; and sending the identity of the first equipment, the identity of the second equipment and the interactive operation instruction to the first equipment and / or the second equipment on the basis of the interactive operation instruction. By utilizing the method, in the process of controlling the equipment, the watching points of the user can be determined by analyzing the eye images of the user and the interactive control among multiple pieces of equipment is effectively realized by combining the motion information of the user; and application scenes of eye tracking techniques are expanded.

The invention improves volumetric efficiency of the internal combustion engine. A suspended cam, 1, follows a limited arc of rotation about the axis of a drive gear, 3. A change in engine speed (r.p.m.) activates the hydraulic piston 8, and alters the cam heel position along this arc that is tangent to a cam follower, 9. The separation distance, between the cam follower and cam heel, determines the duration of valve opening. The separation distance and the rocker arm ratio control the amount of valve lift. As the cam axis sweeps across the cam follower, there is coordinated movement of the cam follower fulcrum, 11. This tempers the otherwise excessive change in rocker arm ratio as the cam contact point on the cam follower moves in the “x” direction with rotation of the suspension assembly, 2. The rotation of the cam axis and gear reduction assembly, 4, 5, &6, about the drive gear, shifts the timing of cam contact. This timing shift creates a desirable asymmetrical expansion or contraction in the duration period of valve opening.

The invention relates to the fields like cells and tissue engineering and provides a non-contact three-dimensional co-culture method for cells. According to the method, a calcium alginate gel layer, a chitosan film layer and a calcium alginate gel layer are successively prepared in culture holes of a culture plate, so a sandwich type composite gel is formed; different cells are in a three-dimensional growth state in the calcium alginate gel layer at two sides of a chitosan film with controllable molecular weight cut off in the composite gel, a culture solution is added, so non-contact three-dimensional co-culture of different cells in a same culture system is realized, thereby allowing behaviors like propagation and differentiation of a target cell in the co-culture system to be regulated and controlled. The method provided by the invention has the advantages of simple operation and low cost, can realize three-dimensional co-culture of different cells which may influence each other and furthest simulates a complex in-vivo cell survival environment.

The invention discloses a laser treatment method for improving biocompatibility of magnesium alloy. According to the method, the surface corrosion resistance of a magnesium alloy implant is improved through a laser remelting process, so that the hydrogen generation rate of the implant in the corrosion process is within the human absorbable range. Meanwhile, due to improvement of the corrosion resistance, the pH value of the surrounding environment of the implant is relatively stable and acid alkali balance of an organism near the implant is maintained. A micro-nano structure is manufactured onthe remolten surface by utilizing superfast laser, the natural environment of cell growth is simulated and the in-vivo rejection reaction of the implant is reduced. The method is flexible in processing and high in processing speed; through compounding of laser remelting and laser texturing processes, various accurate micro-structures can be obtained on the surface of the remolten layer while thesurface corrosion resistance of the magnesium alloy is improved, cell growth is controlled, the biocompatibility of the magnesium alloy implant is improved and the prospective design function of the implant is achieved.

The invention provides a novel trapped vortex combustor head device. The novel trapped vortex combustor head device comprises a central bluff body, a slanted cross-flame plate, a flow deflector, a cavity front wall and a cover hood, wherein the slanted cross-flame plate is connected to the central bluff body; the flow deflector and the cavity front wall are connected to the slanted cross-flame plate; and the cover hood is connected to the cavity front wall. The novel trapped vortex combustor head device has the beneficial effects that main flow of air is led into a low pressure area arranged behind the central bluff body through the central bluff body arranged at the front and the slanted cross-flame plate connected to the central bluff body to prevent plenty of main flow of air from being entrained into a cavity, therefore, the influence of the main flow of air on cavity flowing is reduced, the interaction of the main flow and the cavity is controlled, and the improvement of the ignition performance and lean blowout performance of a trapped vortex combustor is realized.

The invention discloses a networking method and device of a wireless local area network. According to the invention, a first terminal is provided with a frequency band and sends a networking request to a second terminal using the frequency band; the networking request comprises identity information of a plurality of the second terminals; the first terminal and the second terminals form the wireless local area network when the first terminal receives that the second terminals respond to the networking request; based on an established communication channel, the first terminal receives the identity information and a permission levels of each second terminal, and sets the permission level of each terminal in the wireless local area network. Through the setting of the permission level of each terminal in the wireless local area network, the interaction between terminals in the wireless local area network can be controlled effectively, so that the data interaction between local area networks is enabled to be orderly, efficient, and reasonable.

The present invention provides a mesona chinensis extract soft candy containing oyster peptides and a preparation method thereof. The soft candy is prepared from a mesona chinensis extract and oysterpeptide powder. The soft candy is prepared from the following raw material components in mass percentages: 0.2%-4% of a mesona chinensis extract, 0.05%-0.2% of oyster peptide powder, 5-13% of gelatin,1-4% of starch, 35-55% of sugar and 0.2-2% of citric acid. Aiming at texture, anti-deformation rate, mouthfeel, taste, color, luster and nutrition of the mesona chinensis extract soft candy, the useratios of the mesona chinensis extract, oyster peptide powder, sugar, starch and citric acid are comprehensively optimized. The prepared mesona chinensis extract soft candy is rich in nutrients, is smooth on surface, brownish yellow, non-sticky to teeth, elastic, high in deformation resistance, sweet, sour and tasty and has a flavor characteristic of mesona chinensis.

The present invention relates to preparative technique for automobile air valve and parts of similar shape, specifically speaking, the present invention is a semi-continuous method for preparing TiA1-based alloy automobile air valve and parts of similar shape. The present invention adopts the method of vacuum pouring after semi-continuous induction melting in a vacuum pouring furnace: take the spongy titanium, industrial pure aluminum and other alloy elements as the raw materials and adopt a CaO formed ceramic pot for vacuum induction melting; the cast shell mold consists of part mold shell such as air valve, etc., intermediate flow trays and a vacuum pouring pipe; the intermediate flow trays are evenly distributed in the lengthwise direction of the air valve part; the technique parameters of the vacuum pouring are that the shell mold temperature is between 50 to 800 Celsius degrees and the vacuum pouring pressure difference is2.0 multiplied by 104-7.0 multiplied by 104Pa. The present invention can semi-continuously produce parts which have complicated shapes and are hard to be formed with high-melting point, high-activity Ti A1-based materials and the cost is low; in addition, the produced automobile air valve boasts of excellent internal quality and stable casting performance.

The invention relates to a thermal treatment modification method for PBO (Poly-p-phenylene ben-zobisthiazole) fibers, and belongs to the technical field of macromolecular fiber modification. The thermal treatment modification method for the PBO fibers comprises entering a thermal treatment channel, a preheating section, a thermal treatment section and a cooling section. According to the thermal treatment modification method, the PBO fibers enter the sectional type thermal treatment channel through a tension roller; the preheating section and the cooling section which are additionally arranged in the sectional type thermal treatment channel have an important role in improving the intensity and the modulus of the fibers; as water has a plastification effect, in a preheating process of the preheating section, movement of a molecule chain is facilitated, the mutual action between the specific moisture content and the preheating section is controlled, and the crystallizing degree and the orientation degree of the fibers in the thermal treatment section are improved; finally, due to the cooling section additionally arranged in the sectional type thermal treatment channel, the fibers subjected to thermal treatment can be effectively prevented from being directly exposed in the air, so that high-temperature thermo-oxidative degradation of the fibers in hot air is effectively reduced, and the intensity and the modulus of the treated fibers are greatly improved.

The invention provides a sewage treatment method. Water body pollutants are subjected to adsorption treatment through porous composite materials; the porous composite material comprises a magnetic inner core (1) and a porous case (2) coating the outside of the inner core; a microfluid technology is used for synthesizing micron order porous composite materials; the water body pollutants are subjected to adsorption treatment by the porous composite materials.

The invention discloses a method for preparing a hydrocracking catalyst. According to the catalyst, firstly, a mixed solution A containing Ni and W and a sodium metaaluminate alkaline solution are subjected to a gelatinization reaction in a parallel flow manner, obtained slurry is aged, then, a mixed solution B containing W, Si and Al components and ammonia water are added to the aged slurry in aparallel flow manner to be subjected to a gelatinization reaction, aging is performed after a suspension of a molecular sieve is added, then, drying, forming and re-drying are performed, treatment isperformed with a mixed aqueous solution of aluminum salt and organic acid, washing, drying and calcination are performed, and the hydrocracking catalyst is prepared. The hydrocracking catalyst is applied to medium oil type hydrocracking catalysts and has good activity and selectivity.

The invention belongs to the technical field of petrochemical engineering, and particularly relates to a mesoporous carbon carrier and a preparation method thereof. The method comprises the followingsteps: adding a carbon source into a saturated solution of a nitrogen source, and uniformly mixing to obtain a first mixed solution; dipping a template into the first mixed solution to obtain a secondmixed solution; adding an activating agent into the second mixed solution for activation to obtain a first activated intermediate, and then dipping the first activated intermediate into the first mixed solution again for mixing to obtain a third mixed solution; and sequentially crystallizing, filtering, drying and thermally treating the third mixed solution to obtain the mesoporous carbon carrier. According to the method, the mesoporous carbon carrier with good chemical stability and low surface reaction activity can be prepared without adding strong oxidizing acid in the preparation process,the mesoporous carbon carrier has good acid and alkali resistance and high temperature resistance, and the mercury removal catalyst prepared from the mesoporous carbon carrier has a good mercury removal effect.

The invention relates to the technical field of nano-catalysts and particularly relates to a method for preparing a high-activity high-stability catalyst for a Fischer-Tropsch synthesis reaction. According to the preparation method disclosed by the invention, the surface of an inorganic oxide support material is coated with a CN nano coating in advance, then, a cobalt salt is loaded onto the prepared support by utilizing the traditional dipping method, and finally, a cobalt salt precursor is decomposed by adopting a glow-discharge plasma technology, so that the size of prepared Co nanoparticles and a cobalt-support interaction can be effectively controlled, and improvement on Fischer-Tropsch synthesis reaction related catalysis performance indexes of the catalyst such as stability and catalytic activity is facilitated. Through combining carbon nitrogen coating and a plasma treatment technology, the activity of the catalyst is improved, and the reaction stability of the catalyst can beimproved.

The invention relates to a blue light ionic type iridium complex as well as a preparation method and application thereof. The complex takes an iridium complex as a luminescent center and is formed bythe coordination of a main ligand and an auxiliary ligand. The complex takes iridium as a luminescent center, is formed by the coordination of a main ligand and an auxiliary ligand, and has a generalstructural formula shown in formula 1 (as described in the specification), wherein the structure of D is shown in formula 2; the auxiliary ligand N^N may independently be one of tetrabutylammonium cyanide, pyridine, 2,2'-bipyridine, and 1,10-phenanthroline; (as described in the specification), wherein n is more than or equal to 1 and less than or equal to 20, and is a natural number; and * is a connection position. The blue light ionic type iridium complex provided by the invention is simple in material preparation, easy in control of a reaction process, easy in purification and separation ofa product, and high in yield and purity. This kind of material has good solubility and can be used to prepare efficient organic light-emitting diodes and organic light-emitting electrochemical cell devices by a solution method; and the obtained devices show good thermal stability and film-forming stability and have a potential application value in the aspect of organic light-emitting devices.

The invention relates to a method for improving the gel property of myofibrillar protein by controlling the interaction of protein-EGCG (epigallocatechin gallate), and belongs to the field of meat and meat product processing. According to the method, amylopectin (Amp) with a certain concentration and EGCG are uniformly mixed according to a certain proportion and then added into a myofibrillar protein solution, and then the myofibrillar protein gel is prepared through thermal induction. The amylopectin used in the invention can form a complex with EGCG, the adverse effect of high-dose EGCG on the characteristics of the myofibrillar protein gel is inhibited by controlling the interaction of protein-EGCG, and the quality of the myofibrillar protein gel is improved, so that the additive amount of the EGCG is increased, and the purpose of continuous oxidation resistance is achieved. Compared with other modes (such as glycosylation of protein), the method disclosed by the invention is simpler and more effective, and a new thought is provided for controlling protein-polyphenol interaction to improve the gel characteristics of the myofibrillar protein.

The invention discloses a high-resolution biosensor, which includes an atomic-scale conductive material as a sensitive unit to achieve atomic-level detection resolution and a micro-nano fluid device to control the motion and morphological structure of detected molecules. The second electrophoretic electrode or micropump, the second storage room, the second micro-nano separation channel, the substrate, the first insulating layer, the sensitive functional layer, the second insulating layer, the first micro-nano separation channel, the first storage room, the first The electrophoretic electrodes or micropumps are placed in sequence, the center of the sensitive functional layer is provided with nanopores, the center of the first insulating layer is provided with openings in the first insulating layer, the center of the second insulating layer is provided with openings in the second insulating layer, and the substrate A substrate opening is arranged in the center of the substrate, and an electrical contact layer for measuring electrical signals is arranged on the sensitive functional layer. The sensitive functional layer with an atomic layer thickness of the present invention enables the resolution of the sensor to reach the atomic scale, and the integration with the micro-nano fluidic device can control the movement and structure of DNA or RNA, so that stable signal detection can be obtained.

The present invention provides a method for controlling signaling message flux in repeat circuit service process, including that: a signaling transfer point transmits admission transfer message to a signaling terminal; the signaling terminal transmits unavailable message of user parts to all reachable terminal signaling points; the message transfer part of all reachable terminal signaling points transmit a first indication primitive to user parts for notifying the unavailability of user parts, the user parts close all repeat circuits with the signaling terminals. The message transfer part of signaling terminal transmits a second indication primitive to user part of signaling terminal, and the user part can transmit signaling message to reachable terminal signaling points; and user parts store the coding of reachable terminal signaling points, and select reachable terminal signaling point one by one in a certain time for performing repeat circuit recovery operation, and review process after starting repeat circuit, thereby controlling effectively interaction of congestion message between signaling points.

The invention relates to a thermal treatment modification method for PBO (Poly-p-phenylene ben-zobisthiazole) fibers, and belongs to the technical field of macromolecular fiber modification. The thermal treatment modification method for the PBO fibers comprises entering a thermal treatment channel, a preheating section, a thermal treatment section and a cooling section. According to the thermal treatment modification method, the PBO fibers enter the sectional type thermal treatment channel through a tension roller; the preheating section and the cooling section which are additionally arranged in the sectional type thermal treatment channel have an important role in improving the intensity and the modulus of the fibers; as water has a plastification effect, in a preheating process of the preheating section, movement of a molecule chain is facilitated, the mutual action between the specific moisture content and the preheating section is controlled, and the crystallizing degree and the orientation degree of the fibers in the thermal treatment section are improved; finally, due to the cooling section additionally arranged in the sectional type thermal treatment channel, the fibers subjected to thermal treatment can be effectively prevented from being directly exposed in the air, so that high-temperature thermo-oxidative degradation of the fibers in hot air is effectively reduced, and the intensity and the modulus of the treated fibers are greatly improved.

The invention discloses a preparation method of a chitosan-encapsulated mesoporous carbon nano herbicide, which comprises the following steps: by using carboxylated mesoporous carbon nanoparticles asa carrier of the herbicide, strongly adsorbing herbicide molecules in the solution, and encapsulating the herbicide-loaded mesoporous carbon nanoparticles with chitosan in an acetic acid aqueous solution. The chitosan-encapsulated mesoporous carbon nano herbicide disclosed by the invention hardly releases obviously in an aqueous solution with a range from strong acidity to alkalinity, so that theabsorption of the herbicide in the gastrointestinal tract of a human body is greatly reduced. The mesoporous carbon nanoparticles have a good near-infrared light heat effect, wherein the encapsulatedherbicide molecules are gradually released under the condition of natural sunlight irradiation, and the nano herbicide shows an efficient weeding effect similar to that of an active component herbicide. The nano pesticide preparation disclosed by the invention is good in biocompatibility, low in cost, simple in preparation process and small in toxic and side effects on a human body, and the controlled release performance of the sunlight-responsive nano herbicide is realized.