268results about How to "Effective generation" patented technology

The preparation process of nanometer mesoporous TiO2 powder includes TiO2 gel particle with titanyl sulfate and sodium hydroxide as main material, water as solvent and surfactant; and subsequent filtering, drying, heat treatment and grinding to prepare nanometer anatase type mesoporous TiO2 powder with pore diameter of 2-15 nm, particle size of 8-15 nm and specific surface area of 80-150 sq m/g. The preparation process has low cost is suitable for industrial production. The prepared nanometer mesoporous TiO2 has wall of nanometer anatase type crystal, may be ultraviolet excited to generate photoelectron and photohole and is suitable for use as catalyst.

The invention pertains to biological genetic engineering field, specificly relating to SARS vaccine of adenovirus carrier and preparation method, application of related coronavirus S gene in preparation of the SARS vaccine for preventing SARS. Through a bioengineering means, the related coronary virus S gene and a defective adenovirus are recombined, which makes protective immunogen protein or polypeptide expressing in it. A genic vaccine that can arouse the mucosal immunogenicity is produced through amplifying training, purification, and preparation, which induces a immunity reaction in the respiratory mucosa, makes the organism produce the corresponding antibody, and prevents virus from infection. Compared with the traditional inactivated viral particles vaccine, the invention has a high safety; it is convenient to operate; it is not limited by the specific conditions such as intramuscular injection; and it has an extensive clinical application prospect.

The invention relates to a preparation method for negative oxygen ion environmental-protection antibiotic pulp. The preparation method adopts a natural tourmaline with the grain diameter between 300 to 1500 nm as a core, and silver nitrate ions or copper nitrate ions are attached to the surface of the tourmaline and then the ions are mixed with titanium dioxide grains, and then silicon dioxide is adopted to cover the tourmaline to obtain a porous, silicon dioxide coated and antibiotic nanometer loaded compound material which can release negative oxygen ions. The powder of tourmaline of the invention can release negative oxygen ions with sterilization, smell-eliminating and harmful chemical substance decomposing effects, while preserving the activity of titanium dioxide under photocatalysis and performing the distinct antibiotic mildew proof effects of silver nitrate ions or copper nitrate ions under dark and wet condition. The prepared pulp and corresponding products can permanently and effectively perform broad spectrum antibiotic effect for colon bacillus and staphylococcus aureus and also have the effects of environmental-protection, self-cleaning, mildew-proof and moth-proof and anti-contamination. The preparation method is easy for operation with low manufacturing cost.

The invention discloses a dynamic polymer with a hybrid cross-linked network structure. The dynamic polymer contains dynamic covalent bond crosslinking and supermolecular hydrogen bond crosslinking, wherein the dynamic covalent bond crosslinking is realized by associative exchangeable covalent bonds, and the supermolecular hydrogen bond crosslinking is realized by hydrogen bond groups on the sidegroups and/or side chains of a polymer chain framework and hydrogen bond groups on the optional chain frameworks. The polymer integrates dynamic characteristics of a supermolecule and dynamic covalentcharacteristics of glass-like matter; supermolecular hydrogen bonds give stimulative responsibility, energy dissipation performance and self-repairing performance to the material; the associative exchangeable covalent bonds give structural stability and mechanical strength to the covalent cross-linked polymer, and because the associative exchangeable covalent bonds have dynamic reversibility, thepolymer has self-repairing performance, recycling performance, reproducibility and the like. According to the invention, the dynamic polymer with the hybrid cross-linked network structure can be widely applied to vibration-absorptive cushioning materials, impact-resistant protective materials, self-repairing materials, toughness materials, sealing elements and the like.

The invention discloses an ultrahigh frequency electronic tag antenna, which belongs to the production technology field of electronic tags, and comprises a medium base plate and an ultrahigh frequency electronic tag antenna which is loaded on the surface of the medium base plate, radiating antennas are further symmetrically arranged on the surface of the medium base plate, and comprise bending structures and loading wires, and the bending structures are formed by alternately connecting wide wires and narrow wires. The ultrahigh frequency electronic tag antenna further comprises T-type matching structures which are symmetrically arranged, the T-type matching structures are embedded into the radiating antennas which are symmetrically arranged, and are used to feed for the radiating antennas, feed ports are arranged on openings of the T-type matching structures which are symmetrically arranged, electronic tag chips are welded on the feed ports, and the radiating antennas and the T-type matching structures are bonded on the medium base plate through a curable adhesion film. The ultrahigh frequency electronic tag antenna is simple in structure, cheap in price, excellent in gain effect and easy to match with chips.

The invention relates to the technical field of noise reduction, and discloses a mobile terminal and a method for reducing audio noise. In the present invention, the mobile terminal includes: an audio power amplifier, a loudspeaker, a microphone, and a codec chip; wherein the codec chip collects the first audio signal, and the microphone collects the second audio signal and outputs it to the codec chip; The first noise signal and the second noise signal are extracted from the first audio signal and the second audio signal, and output to the audio power amplifier; the audio power amplifier performs compensation processing on the first audio signal according to the first noise signal and the second noise signal. The embodiments of the present invention can effectively suppress the noise on the audio line of the mobile terminal and the audio noise played by the speaker, improve the sound quality of the output audio and the subjective experience of the human ear, and further improve the user experience.

The invention discloses an air source ultralow temperature heat pump unit provided with a supercooling frosting-restraining heat exchanger. The air source ultralow temperature heat pump unit comprises an enhanced vapor injection compressor, a user side heat exchanger, a vapor and liquid separator, a heat source side heat exchanger, a plate heat exchanger and refrigerant pipelines used for connecting the enhanced vapor injection compressor, the user side heat exchanger, the vapor and liquid separator, the heat source side heat exchanger and the plate heat exchanger. The air source ultralow temperature heat pump unit solves the problem that in a winter heating and hot water obtaining mode, an outdoor heat exchanger is prone to frosting under the environment where the temperature is low and definite humidity is reached, and consequently the working performance of a unit is affected seriously. The air source ultralow temperature heat pump unit solves the problem that under the working condition that the air source ultralow temperature heat pump unit is used for heating and hot water making, an outdoor side heat exchanger is very prone to incomplete defrosting and consequently frost deposit is caused. By the adoption of the supercooling frosting-restraining heat exchanger, defrosting can be conducted effectively and thoroughly for a long time, and a frost layer is restrained from being generated on the bottoms of the heat exchangers.

The invention discloses a refreshing anti-fatigue solid beverage. The solid beverage is prepared from the following raw materials: plant extract, a sweetening agent, an acidity regulator, a nutrient supplement, maltodextrin, plant protein peptide powder and mixed-fruit flavored essence. The preparation process of the solid beverage comprises the steps of inspecting raw materials, preparing materials, mixing materials, sterilizing, quantitatively packaging, inspecting, filling into cartons and storing. The refreshing anti-fatigue solid beverage has rich nutrition and good refreshing and anti-fatigue effect by adding multiple plant extracts, is easy to prepare and convenient to carry, is especially suitable for people who operate computers for a long time, drivers and students. The solid beverage further contains electrolyte, can be taken by sporting groups to keep homeostasis and regulate muscle contraction, and cannot cause nausea, headache and other situations.

The invention discloses a preparation method and application of enterovirus (EV) 71 type full-length infectious clone with tags. The preparation method comprises the following steps of: (1) extracting total RNA; (2) performing reverse transcription-polymerase chain reaction (RT-PCR) amplification on the EV71; (3) constructing EV71 subclone; (4) constructing recombinant clone containing EV71 genes; and (5) constructing the enterovirus 71 type full-length infectious clone with eGFP and DsRed. Tests, such as cytopathic effect, fluorescence detection, gene detection, virus plaque, medicine inhibition and the like, prove that the EV71 full-length infectious clone with the tags is obtained successfully. The invention has high application value in the aspects of research and development of animal models, virus replication and pathogenesis, medicine screening and medicine action mechanism, vaccine and diagnostic reagents and the like.

The invention relates to the technical field of optics and micro Nano system, in particular to an ultra-fast detection structure for metal micro Nano superstructure surface plasma ploariton. The structure comprises Si base where a layer of silica is cultured. A lay of graphene film is provided on the layer of the silica and square shape metal Au is placed on the both sides of the graphene film and a layer of TiO is placed on the graphene film between the square shape metal Au. Globular metal Ag is provided on the layer of the TiO. A cover layer of the graphene film is provided on the globular metal Ag. A nanoscale gap is shown among the globular metal Ag. The invention solves the problems of being limited in sensitivity due to lack of photon-generated carriers brought by the photodetector made of the graphene and being low in transmission speed.

The invention relate to a novel method for preparing a high quality graphene material, and aims to satisfy the massive needs of high quality and low cost graphene. According to the preparation method, physical parameters such as mixed solution surface tension, viscosity, and the like should be maintained in a certain range; in realtime measurement, the surface tension and viscosity can be adjusted at the same time, or various raw materials can be added at random. Shearing and stirring equipment such as shearing emulsifying machine is adopted to shear and stir the raw materials, and then an ultrasonic wave treatment is adopted to obtain graphene dispersion liquid. The obtained graphene has a very large transverse dimension and extremely high concentration, the thickness is within four layers; due to the adopted non-oxidation method, the conductivity of graphene is high; the method is simple, no complicated technology or procedure is used, and the method is suitable for massive industrial production.

A signal modulation method for a receiving-end module of an induction type power supply system includes configuring a plurality of modulation periods corresponding to a modulation signal; performing modulation on a first terminal of an induction coil of the receiving-end module during the i<SP>th</SP>modulation period among the plurality of modulation periods, wherein i is an odd number; and performing modulation on a second terminal of the induction coil of the receiving-end module during the j<SP>th</SP>modulation period among the plurality of modulation periods, wherein j is an even number; wherein the second terminal does not undergo modulation when the first terminal is being modulated, and the first terminal does not undergo modulation when the second terminal is being modulated. The present invention also provides a signal rectification and modulation device.

The invention discloses a processing method for functionalization modification on biomedical titanium alloy surface, and active hydroxide radical, amidogen and carboxyl are introduced to the medical titanium alloy surface by the treatment of hydroxylation solution and amidogen solution. The process is as follows: the biomedical titanium alloy sample is firstly treated in hydrogen peroxide containing little Fe<2+> and hydrochloric acid solution, then is placed into polyacrylamide solution in nitrogen atmosphere, a suitable amount of cerous nitrate salt is added, hypochlorite solution is added after reaction for a time, the reaction is continued, and the sample is rinsed and air-dried in NaOH solution and hot water sequentially after cooling. Compared with untreated titanium alloy, the titanium alloy after the treatment in the invention keeps excellent mechanical property and biocompatibility of the matrix, at the same time, active function group is introduced to the alloy surface, thus leading to good biological activity, the active function group covalent linkage is connected with biological functional macro molecules, thus further improving the histocompatibility and blood compatibility of implanted or interventional material.

The invention relates to acinetobacter johnsonii LP28 and a method for preparing low-temperature alkali lipase by using the acinetobacter johnsonii. The strain is preserved in CGMCC, the preservation number is CGMCC 3069, and the homology of a 16S rDNA sequence of the strain and DQ257426 is as high as 100 percent. The method for preparing the low-temperature alkali lipase comprises the following steps: (1) screening bacterial strains; (2) seed cultivation; (3) fermentation and cultivation; and (4) separation and purification. The acinetobacter johnsonii LP28 is from the soil polluted by oil in a saline and alkaline land of Tianjin Bohai Bay, the enzyme production is stable, the raw material source is wide, and the production cost is low; and the obtained low-temperature alkali lipase has good stability for additive components of a washing agent such as surfactant, oxidant, protease and the like, and can be used as enzyme added into the washing agent to be applied in the industry of the washing agent.

The invention disclosed A.media which can produce low temperature amylase as well as its producing method. The invention has established the systematic method of preserving, rejuvenating and selecting the A.media. By optimizing the medium compounding and the fermenting technologies, the invention has established method to produce amylase. The low temperature amylase has high enzyme activity under low temperature. The invention has significant meanings and it can be used in paper, food and pharmaceutical industry such as cerealose, beer, yellow wine, glucose, aginomoto and antibiotics industries.

The invention relates to a tyrosine phthalocyanine derivative which has a structural general formula as the right, in the formula, M is equal to Zn or Al, R is equal to H, Na or CH2CH3. The preparation method for the tyrosine phthalocyanine derivative is: (1) an intermediate II is obtained through the reaction of tyrosine and 4-nitrophthalic nitrile with protected amino group; (2) an intermediate III can be obtained by detracting Boc in the solution of dichloromethane and trifluoroacetic acid; (3) the tyrosine phthalocyanine derivative I can be obtained by cyclizing of the dinitriles intermediate that comprises the tyrosine; wherein, the Boc is di-tert-butyl dicarbonate, a DMF is N, N-dimethylformamide, and a DBU is 1,8-diazacyclo(5,4,0)hendecene-7. The invention also comprises the application of the tyrosine phthalocyanine photosensitizers in preparing photodynamic medicines.

The invention relates to a bottle lifting device for a filling machine. The bottle lifting device comprises a false cup, a bottle clamping plate, and a cylinder which is arranged above a filling valve; a roller seat on which a roller is arranged is arranged on a telescopic part of the cylinder; guide rods are respectively arranged at two sides of the roller seat; one end of each guide rod, far away from the roller seat, is connected with the false cup; the bottom end of the false cup is connected with the bottle clamping plate; the false cup is positioned below an opening of the filling valve; axes of the cylinder and the filling valve and a longitudinal center line of the roller are overlapped. According to the bottle lifting device for the filling machine, the roller, the false cup, the bottle clamping plate, the filling valve and the cylinder are connected as a whole structure; the cost is small; when in filling, the cylinder upwards moves under the effect of compacted air, and the bottle clamping plate is driven by the roller seat together with the guide rods to move upwards, so as to prop a bottle opening to the opening of the valve for filling; after the filling, the roller downwards moves, and the bottle clamping plate is driven by the guide rods to downwards move, so as to enable a bottle to be separated from the opening of the valve; the force applied during lifting or lowering is concentrated in the direction of the axis of the filling valve, so that the filling precision can be effectively increased.

A method for producing an L-amino acid is provided which includes culturing in a medium a microorganism of the Enterobacteriaceae family which has an ability to produce an L-amino acid and which has been modified so as to enhance the beta-glucoside PTS activity, and collecting the L-amino acid from the medium or cells.

The invention discloses a preparation method and application of EV71 full length infectious clone with a luciferase tag, belonging to the field of biotechnology. The preparation method comprises the steps of: (1) extracting total RNA; (2) amplifying EV71 through RT-PCR; (3) constructing an EV71 subclone; (4) constructing a recombinant clone containing an EV71 gene; and (5) constructing an EV 71 full length infectious clone with a Rluc tag. Experiments of cytopathic effect, Rluc activity detection, virus plaque, drug inhibition and the like show that the EV71 full length infectious clone with a tag is successfully obtained. The invention has wide application values in the aspects of animal models, virus replication and pathogenesis, drug screening and mechanism of drug action, development of vaccines and diagnostic reagents and the like.