210results about How to "Expand the range of options" patented technology

The invention discloses a heat-solidity epoxy tar material, preparing method and specific dissolving-reinforcing agent, which comprises the following steps: allocating the raw material with 100% tar, 20-40% epoxy resin, 20-40% hardener and 20-60% heat-solidity epoxy tar; blending evenly; heating to 80-90 deg.c; stirring evenly; solidifying under 100-120 deg.c for 0.5-7h; obtaining the product. The invention provides a specific dissolving-reinforcing agent of heat-solidity epoxy tar material, which contains weak-polarity high-grade fat carbon chain and strong-polarity Mannish alkaline or compound of epoxy resin and polyol.

The invention discloses a porcelain polished tile and a production method of the porcelain polished tile. The production method comprises the steps of: (1) preparing a porcelain polished tile blank body powder material by a conventional method; (2) preparing a porcelain polished tile slurry; (3) preparing a porcelain polished tile blank body; (4) drying; (5) applying the slurry; (6) drying and sintering; (7) edging and polishing; and (8) sorting, packaging and warehousing. The porcelain polished tile and the production method have the beneficial effect of solving the technical problems of higher requirements of the traditional porcelain polished tile on a material and more waste, and provides a more environment-friendly and economic production method of the porcelain polished tile.

The invention relates to a biodegradable amphiphilic albumin derivative and a pharmaceutical composition thereof. In the biodegradable amphiphilic albumin derivative, hydrophilic long-chain polyethyleneglycol and alkyl (acyl) group or (deoxidized) cholic acid are led to an albumin skeleton so that the amphiphilic albumin derivative is amphipathic and is self-assembled in water to form nano-micelle. The biodegradable amphiphilic albumin derivative is characterized in that medicament can be encapsulated through the double actions of a hydrophobic group and an albumin molecule chain with the medicament, and the capacity of the albumin encapsulating the medicament is markedly improved; in addition, a hydrophilic long-chain can reduce the immunogenicity of the albumin and improve the nano-micelle surface hydrophilicity so that the stability of the nano-micelle in aqueous medium can be improved and the nano-micelle has long-circulation characteristics in a body. The pharmaceutical composition of the biodegradable amphiphilic albumin derivative can be used as the carrier of organic medicament, water-insoluble or insoluble medicament and amphiphilic medicament, can be used for intravascular administration, intramuscular injection administration, oral administration, cavitary administration or external administration. The invention can be prepared with simple method and mature process and is suitable of large-scale continuous production.

The invention discloses an organosilicon material. The organosilicon material comprises: a component A comprising, by weight, 80-200 parts of organopolysiloxane, 20-60 parts of a reinforcing filler, 0-20 parts of silicon resin, 50-80 parts of a heat conduction filler, 2-20 parts of a structurized control agent, and 0.05-0.8 parts of a reaction catalyst; and a component B comprising, by weight, 80-200 parts of organopolysiloxane, 0.5-10 parts of organic hydrogen-containing polysiloxane, 20-60 parts of the reinforcing filler, 0-20 parts of silicon resin, 50-80 parts of the heat conduction filler, 2-20 parts of the structurized control agent, and 0.05-0.4 parts of a reaction inhibitor, wherein a weight ratio of the component A to the component B is 1:1. The invention also discloses a preparation method of the organosilicon material, and a method for applying the organosilicon material in 3D printing. The organosilicon material has the advantages of superior performances, safety and non-toxicity; the preparation method of the organosilicon material is simple and is easy to carry out; and application of the organosilicon material in 3D printing is maneuverable.

The invention discloses the medical application of a 15-methylene replaced andrographolide derivant as shown in general formula 1, more particularly relates to the application thereof in preparing anti-hepatitis B virus drugs, pertaining to the pharmaceutical chemistry field. HepG2.2.15 cells are used for detecting the secretory volumes of HBsAg and HBeAg and the HBV DNA level related to viral particles in the supernatant liquid of a nutrient solution, and the result shows that the 15-methylene replaced andrographolide derivant has good in-vitro anti-HBV effect. The 15-methylene replaced andrographolide derivant has better development and application prospect by being applied in preparing drugs used for treating and preventing Hepatitis B.

The invention discloses a portable and wearable ultrasonic physiotherapy instrument which comprises a power supply module (1), a man-machine interaction module (2), a main control module (3), a DDS module (4), a power amplification module (5), a therapy head module (6) and a frequency tracking module (7). The power supply module comprises a rechargeable polymer battery. The therapy head module (6) of the instrument is provided with multiple therapy heads and adsorption structures, an adsorption part of each therapy head is a cone-similar adsorption cover, the effective radiation area of each ultrasonic therapy head ranges from 3 cm<2> to 9 cm<2>, and the effective output sound intensity is smaller than or equal to 3 W/cm<2>. According to the portable and wearable ultrasonic physiotherapy instrument, ultrasonic waves with multiple center frequencies can be outputted and can be continuously adjusted within the range of 0.5 MHz to 3.5 MHz, and the instrument is used for treating patients suffering from the organic cardiovascular disease and patients suffering from sports injuries. The portable and wearable ultrasonic physiotherapy instrument has the advantages of being simple in structure, capable of automatically conducting tracking through frequencies, high in stability, diversified in frequency, high in output power, easy to operate and the like, and can be widely used for in vitro physical treatment for the patients suffering from the organic cardiovascular disease and the patients suffering from sports injuries.

The invention provides a zinc-based dual-ion battery which comprises a positive electrode, a negative electrode, a diaphragm arranged between the positive electrode and the negative electrode, and electrolyte, wherein the electrolyte is non-water zinc salt electrolyte; the positive electrode comprises a positive electrode current collector and a positive electrode material combined with the surface of the positive electrode current collector; the positive electrode material contains a positive electrode active material, and the positive electrode active material is a layered material enablingthe negative ions forming the zinc salt to be reversibly embedded and separated; the negative electrode is a metal foil; the metal foil serves as a negative electrode current collector as well as a negative electrode active material; and the metal foil enables reversible deposition and dissolution of zinc ions or reversible alloying reaction with zinc.

The invention relates to a method for selecting frequency control parameters of a doubly-fed fan in a microgrid. The method comprises the steps of determining that a wind turbine generator and a diesel engine participate in a microgrid frequency control strategy in an island mode in common and building a small signal analysis model; and researching characteristic value change trajectories of the microgrid when parameters of a speed regulator of the diesel engine change, finding out a group of typical characteristic roots of reflecting dynamic frequency response characteristics of the microgrid, analyzing the change trajectory rule of obtained typical characteristic values when over-speed control and virtual inertia control parameters of a DFIG change, judging a frequency stability change of the microgrid according to the characteristic value trajectories, obtaining reasonable ranges of over-speed control and virtual inertia control coefficient values of the DFIG and improving PI control parameters. Therefore, the frequency oscillation phenomenon when the over-speed control and virtual inertia control coefficient values exceed the range can be avoided, the ranges of the over-speed control and virtual inertia control coefficient values are expanded, that is to say, a stability margin of the microgrid is increased, and the small interference stability of the microgrid is further strengthened.

The invention relates to a method for preparing a bulking agent of epoxy resin modified asphalt. Epoxy resin modified asphalt material is applicable to pavement of a high-grade road, pavement of steel bridge deck and the like. The method for preparing the bulking agent of the epoxy resin modified asphalt is characterized by comprising the following steps of: 1) selecting the following raw materials in parts by weight: 100 parts of fatty acid, 150-250 parts of epoxy resin, 3-4 parts of catalyst and 580-610 parts of organic solvent for spare use; and 2) dispersing the fatty acid and the epoxy resin into the organic solvent, and adding the catalyst, and heating for 3-5 hours at the temperature of 100-150 DEG C so as to obtain the bulking agent of the epoxy resin modified asphalt. The bulkingagent prepared by the method provided by the invention can cause mixing of asphalt and the epoxy resin to be more uniform.

The invention relates to a thermosetting epoxy asphalt material and a preparation method thereof, which are mainly used in field of buildings. The thermosetting epoxy asphalt material is characterized by being prepared from the following raw materials in part by weight: 100 parts of asphalt, 20 to 40 parts of epoxy resin, 20 to 40 parts of vulcanizer, 20 to 40 parts of curing agent, 0.3 to 1.2 parts of curing accelerator and 20 to 60 parts of oleoylchloride thermosetting epoxy asphalt compatibilizer. In the thermosetting epoxy asphalt material prepared by the method, the asphalt and the epoxy resin are uniformly mixed.

The invention relates to a substrate cooling device based on the directional solidification characteristic of promoting laser additive reproduction. The substrate cooling device comprises a tank body.The top surface of the tank body is recessed downward to form a water tank with an upward opening. An inlet for inputting a cooling medium into the water tank is formed in one side of the tank body.An outlet for draining the cooling medium in the water tank is formed in the other side of the tank body. Both the inlet and the outlet are communicated with the water tank. A ring of sealing groove is formed in the portion, around the opening of the water tank, of the top surface of the tank body, and a sealing ring is arranged in the sealing groove. The cooling device further comprises a cover plate sheet for locking the edge of a substrate laid on the water tank onto the tank body, the cover plate sheet and the top surface of the tank body are detachably connected through a connecting partto clamp the substrate to the position between the tank body and the cover plate sheet, and the substrate covers the sealing groove. A window for exposing the upper surface of the substrate is formedin the cover plate sheet.

The invention provides a pledge borrowing method, pledge borrowing equipment and a storage medium. The method comprises the following steps: receiving pledge borrowing requests sent by a plurality ofborrower terminals and lending requests sent by a plurality of lender terminals respectively, wherein the pledge borrowing request comprises evidence storage information of a quality object requestedto be quality, and the evidence storage information is recorded on a first block chain; matching each pledge borrowing request with each lending request, generating a pledge borrowing transaction according to the matched pledge borrowing request and lending request after the matching is successful, and sending the pledge borrowing transaction to a node of the first block chain so as to record thepledge borrowing transaction on the first block chain; Hanging and selling the pleated and borrowed goods, and recording hanging and selling information to the first block chain; and if the hanging and selling information is sold successfully, generating a borrowing compensation transaction and sending the borrowing compensation transaction to the node of the first block chain to record the borrowing compensation transaction to the first block chain. The invention provides a pledge scheme for reducing the derogatory risk of a quality substance.

The invention discloses a near-field radio frequency identification (RFID) reader plane opening dual-ring antenna for an ultra high frequency (UHF) band. The antenna is in a plane structure and comprises an antenna radiating unit, a dielectric substrate and a matching patch, wherein the antenna radiating unit is attached to one surface of the dielectric substrate and is a radiating body of the antenna, and the matching patch is attached to the other surface of the dielectric substrate and is a ground terminal of the antenna. The antenna is simple in structure and easy to produce. Frequency points and bandwidths of resonance frequency of the antenna can be changed within broad radio-wave spectrum through the adjustment of antenna structural parameters. The antenna can meet RFID system radio-wave spectrum which is regulated by different nations and is applied to near-field mobile terminal RFID application such as mobile payment and article anti-faking and tracing.

The invention discloses application of timosaponin AIII in anemarrhena to preparation of antitumor drugs, which belongs to the field of pharmacology. Pharmacological experiments prove that timosaponin AIII has broad-spectrum strong antineoplastic activity, especially strong and stable cytotoxicity on T475-S2 cells; timosaponin AIII has stronger capacity in killing T475-S2 cells compared with 5-Fu and paclitaxel; the IC50 value of timosaponin AIII is 6.97 +- 0.72 mu M after 24 h, the concentration of used timosaponin AIII is 6 mu M, timosaponin AIII can induce apoptosis and autophagy of T475-S2 cells, the effect of apoptosis is dominating, so timosaponin AIII can be used for preparing drugs for preventing and treating tumors.

The invention discloses a flip chip packaging structure and a flip chip packaging process, and a camera module packaging structure. The flip chip packaging structure comprises a substrate, a sensor, aflexible circuit board and a plastic packaging layer, wherein a mounting groove is formed in the back surface of the substrate, the sensor is arranged in the mounting groove, the flexible circuit board is arranged on back surface of the substrate in a manner of completely or partially avoiding the mounting groove, the sensor and the flexible circuit board are electrically connected with the substrate, and the plastic packaging layer covers the mounting groove, the sensor and a connecting part of the flexible circuit board and the substrate. According to the flip chip packaging structure, theflexible circuit board completely or partially avoids the mounting groove, the plastic packaging layer is formed through injection molding into the mounting groove via a gap between the flexible circuit board and the mounting groove, effective support and protection are formed at the sensor and the joint of the flexible circuit board and the substrate by means of the plastic packaging layer, the reliability of the packaging structure is improved, and the installation difficulty is reduced, thus the substrate is no longer restricted to a ceramic substrate, thereby reducing cost of the packagingstructure, shortening the delivery cycle, and improving economic efficiency of an enterprise.

The invention relates to a bulking agent and a preparation method thereof. The preparation method of the modified epoxy resin thermosetting epoxy asphalt bulking agent is characterized by comprising the following steps of: selecting 80 parts of epoxy resin, 187 parts of trichloromethane, 100 parts of oleic acid and 0.01-0.1 part of stannic chloride by weight; dissolving the epoxy resin into the trichloromethane; adding the oleic acid; and dripping the stannic chloride at 40 DEG C-45 DEG C to react for 1-1.5 hours to obtain the modified epoxy resin thermosetting epoxy asphalt bulking agent. The bulking agent obtained in the method can ensure that the asphalt and the epoxy resin are mixed more uniformly.