291results about How to "Strong competitive advantage" patented technology

The invention relates to a manufacturing method of an environment-friendly antiflaming middle and high density fibreboard, solving the problem of high fibreboard production cost and poor fire resistance and environmental protection in the prior art. The invention comprises the following technical steps: hot grinding wooden or non-wooden materials into fibre; applying expansion N-P fire retardant of which the solid content is 35-60% and the pH value is 7-8 for fire retardant treatment, wherein the application amount of the fire retardant accounts for 10-15 wt% of absolute dry fibre; applying urea resin, waterproof agent and curing agent, wherein the urea resin application amount accounts for 10-14 wt% of the absolute dry fibre, the waterproof agent application amount accounts for 1-3 wt% of the absolute dry fibre, and the curing agent application amount accounts for 0.5-2 wt% of urea resin; then, drying, paving, prepressing, hot-pressing, cutting edges, sanding, separating and the like to obtain the fibreboard after inspection. The invention has simple production technology and low cost, the fibreboard not only has favorable physical-mechanical property but also has antiflaming and environment-friendly characteristics.

The invention relates to an environment-friendly composite microbial preparation, preparation thereof, and application thereof to aquaculture. An environment-friendly composite microbial water purifying agent comprises the following components in percentage by weight: 20 to 40 percent of bacillus subtilis, 10 to 20 percent of bacillus licheniformis, 10 to 15 percent of bacillus megaterium, 10 to 15 percent of brevibacillus laterosporus, 5 to 10 percent of bacillus pumilus, 5 to 20 percent of bacillus coagulans and 2 percent of biological activating agent. The high-concentration composite microbial preparation is prepared by screening eight strains of probiotics by simulating the physiological functions of normal microbial flora in an aquaculture environment and through scientific compatibility, so that division and cooperation amount the bacterial strains can be realized, a biological enhancement technology can be combined with an indigenous flora activating technology, complex problems in a culture water body can be solved completely, the using amount is small, the cost is low, and the competitive advantage is remarkable.

The invention provides an intelligent vehicle-mounted communication informatization system based on a 3-generation (3G) technology and a cloud system. The intelligent vehicle-mounted communication informatization system comprises a master control module, a wireless communication module, a positioning module, a sensor module and other functional modules, wherein the master control module comprises an advanced Risc machine (ARM)-based micro controller which is used for coordinatively controlling other modules of the system, and an intelligent embedded operating system; the wireless communication module is a wireless access module for accessing the system to the Internet based on various 3G technologies and is electrically connected with the master control module; the positioning module is a module for supplying a positioning function to the system based on positioning systems, such as a global positioning system (GPS), a beidou positioning system and the like, and is electrically connected with the master control module; the sensor module is a module for supplying a theftproof function based on an ultrasonic sensing technology and is electrically connected with the master control module; and other functional modules are modules for realizing main functions of the system. The invention also provides a communication method applied to the system. The system has the characteristics that: the GPS navigation speed is higher, the cloud system can be widely applied, and the whole vehicle-mounted system is higher in intelligentization level.

The invention discloses a coal-water abrasion and corrosion resistant steel plate for a railway coal transport vehicle and a manufacturing method thereof. The coal-water abrasion and corrosion resistant steel plate comprises the chemical components of, by weight, 0.01-0.15% of C, 0.10-0.50% of Si, 0.20-1.0% of Mn, 0.020% or less of P, 0.010% or less of S, 0.20-0.60% of Cu, 0.50-1.5% of Ni, 0.20-2.0% of Cr, 0.030-0.10% of Sb, 0-0.25% of Mo, 0-0.05% of Nb, 0-0.05% of V, 0-0.10% of Ti, 0-0.005% of B and the balance Fe and impurities, wherein C, Cr and Ni need to meet the relation of 1.6%<=12C+Cr/Ni<=2.8%. The steel plate is manufactured through the ten steps of blast-furnace iron melting, molten iron pre-desulfuration, converter smelting, LF+RH refining, plate blank continuous casting, cast blank slow cooling, plate blank heating, hot continuous rolling, laminar flow cooling and reeling, the yield strength of the steel plate is 450 MPa grade, the steel plate is excellent in mechanical performance, the service life of the steel plate under the coal-water abrasion and corrosion environment can be greatly prolonged, and the obvious competition advantage in the railway coal transport vehicle carriage manufacturing industry is achieved.

A CD19-OR-CD20 chimeric antigen receptor (CAR) protein construct is provided. Also provided are nucleic acids encoding the CD19-OR-CD20 CAR; and methods of use, e.g. in the treatment of B cell malignancies. The CD19-OR-CD20 CAR of the invention is a bispecific CAR that can trigger T-cell activation upon detection of either CD19 or CD20 (or both). It is a single molecule that confers two-input recognition capability upon human T cells engineered to stably express this CAR.

The invention relates to a preparation method of an oil absorbing material, and the oil absorbing material is prepared by subjecting a basic material namely palm fibers to hydrophobic modification. The preparation method comprises the following steps: washing palm fibers, drying palm fibers, cutting the palm fibers into sections with a length of 0.5 to 5 cm; putting the palm fibers into a hydrophobic agent solution, soaking for 10 to 120 minutes at a temperature of 25 to 100 DEG C, taking out the palm fiber containing a hydrophobic agent, and quickly drying so as to obtain the modified oil absorbing material; wherein the hydrophobic agent is composed of paraffin, palm wax, or a mixture of paraffin and palm wax, the addition amount of the hydrophobic agent is 0.01 to 0.2 times of the weight of the palm fibers, the solvent is one or more of carbon tetrachloride, vinyl acetate, ethanol, and benzene, and the addition amount of the solvent is 20 to 800 times of the weight of the hydrophobic agent. Cheap and easily-available natural plant palm is taken as the raw material, the oil absorbing material is prepared by carrying out hydrophobic modification on the palm fibers, and compared with the oil absorbing materials prepared through chemical synthesis, the provided oil absorbing material has the advantages of low cost, biodegradability, and excellent oil absorbing performance.

The invention discloses an MIM manufacturing process for a weak-magnetism 17-4PH material part. The MIM manufacturing process comprises the following technological steps of: preparing an MIM injection-molded blank; degreasing; sintering; and discharging, wherein in a sintering process, the temperature is increased from the room temperature to 550-650 DEG C at a temperature rise speed of 3-3.5 DEGC/min in negative-pressure sintering; the temperature is increased from 550-650 DEG C to 950-1050 DEG C at a temperature rise speed of 3.8-4.5 DEG C/min in vacuum sintering; the temperature is increased from 950-1050 DEG C to 1270-1300 DEG C at a temperature rise speed of 2-2.5 DEG C/min in partial-pressure sintering; in a first-stage cooling process, the temperature is reduced from 1270-1300 DEGC to 1050-1150 DEG C; in a first-stage cooling temperature-maintaining process, the temperature is maintained for 60 min to 360 min at 1050-1150 DEG C, and nitrogen is charged; in a second-stage cooling process, the temperature is reduced from 1050-1150 DEG C to 550-650 DEG C; and in a third-stage forced cooling process, the temperature is reduced from 550-650 DEG C to 70 DEG C or lower in a forced cooling manner. A product manufactured by the manufacturing method disclosed by the invention is high in dimensional accuracy, high in strength, good in weak magnetism and corrosion resistance, andsmaller than 1.2H/M in magnetic conductivity.

The invention discloses a porcine seneca valley virus strain and an application thereof. In the invention, the seneca valley virus strain CH-FJZZ-2017 is isolated from pathological materials of porcine idiopathic vesicular disease in a pig farm in Fujian Province, with the preservation number of CGMCC No. 12160. The isolated porcine seneca valley virus CH-FJZZ-2017 in the invention is isolated from swinery newly suffering from the epidemic disease within Chinese territory, represents the current epidemic predominant virus strain in China, has a good virus strain background, and can be used as an inactivated vaccine production virus strain and a virus seed for testing, thereby providing a material for subsequent relevant experimental study, and laying a material foundation.

The invention discloses a preparation method of a terpolymer defoamer. The preparation method comprises the steps: 1) the synthesis of polyether modified silicone oil; 2) the synthesis of a terpolymer of polyol and polyether modified silicone oil; 3) the preparation of the terpolymer defoamer. Firstly, a hydrosilylation reaction is performed on an acetyl-terminated allyl polyether and a low-hydrogen containing silicone oil in the presence of a chloroplatinic acid catalyst to generate the polyether modified silicone oil having the structure of Si-C; secondly, a condensation reaction is performed on the polyether modified silicone oil having the structure of Si-C and a polyhydric alcohol in the presence of concentrated sulfuric acid to obtain the main monomer of the polyhydric alcohol-polyether modified silicone oil terpolymer system defoamer, and the monomer is taken as the major ingredient to prepare the defoamer; the problem of silicon deposition of a traditional organic silicon defoamer in the use process is improved, and the advantages of the silicone coil, the polyether and the polyhydric alcohol are integrated so that the terpolymer defoamer is integrated with the functions of defoaming, foam inhibition, foam merging and degassing, and therefore, the terpolymer defoamer can be widely applied to a plurality of fields such as papermaking, chemical fibers, oil field and wastewater, and has outstanding competitive advantages.

The invention relates to the fabrication method of a travelling-wave electroabsorption modulated laser with a laminated structure formed by selective-area growth (SAG). The fabrication method comprises the following steps: fabricating a mask strip pattern on a semi-insulating InP substrate; sequentially epitaxially growing a heavily-doped n-InP buffer layer, a 1.2Q lower confinement layer, a multi-quantum well structure of a modulator, a multi-quantum well structure of a laser, a 1.2Q upper confinement layer and an n-InP inversion layer; etching off an upper laminated multi-quantum well structure in a SAG laminated multi-quantum well structure, and a lower laminated multi-quantum well structure and the 1.2Q lower confinement layer of an optical terminal region; fabricating a grating on a large-area growth area, and etching an inversion layer to the 1.2Q upper confinement layer by the grating; and sequentially epitaxially growing a p-InP protection layer, an etching stop layer, a p-InP cover layer and a p-InGaAs layer; and etching off the p-InGaAs layer in the electrical insolation area, and implanting ions in the p-InP cover layer in the area to produce a high-impedance area.

A verification environment is provided that co-verifies a software component 8 and a hardware component 10. Within the same environment using a common test controller 18 both hardware stimuli and software stimuli may be applied to their respective simulators. The response of both the software and the hardware to the simulation conducted can be monitored to check for proper operation.

The invention relates to the field of papermaking, and discloses a sludge paperboard and preparation thereof. The papermaking sludge paperboard is prepared from papermaking sludge and short fibers serving as raw materials. By breaking through sludge papermaking technology and solving the strength problem of the sludge paperboard, 100 percent of papermaking sludge is recycled and the pollution problem of spinning waste, namely the short fibers is partially solved; and the formed sludge paperboard product can replace a thick paperboard and has obvious cost advantage.

The invention discloses a preparation method of a special-shaped boron carbide ceramic sandblast nozzle. The preparation method comprises the following steps: (1) proportioning all the raw materials in percentage by weight as follows: 50-70wt% of boron carbide powder, 20-40wt% of a sintering aid, 1-8wt% of a carbon source, 0.5-6wt% of an adhesive and 0.6-6wt% of a dispersing agent; (2) carrying out a spray drying granulation process on the obtained slurry into granules; (3) putting the granules into a manufactured soft mould sleeve and moulding by using a dry bag type granules method, thus obtaining a sandblast nozzle biscuit; (4) putting the sandblast nozzle biscuit into a debonding furnace, vacuumizing, heating for removing water and organics, then processing in a vacuum sintering furnace to obtain a finished boron carbide ceramic sandblast nozzle product. The method is suitable for volume production and the prepared boron carbide sandblast nozzle has the advantages of high hardness, good toughness, good wear resistance, long service life, low cost, and high performance cost ratio. The method can be used for preparing sandblast nozzle products with complicated hole structures.

The invention discloses a method for producing Bacillus subtilis for feeds by fermenting high-salt-content amino acid wastewater, which comprises the following steps: 1. habituated culture of feed strain: carrying out continuous habituated culture to enhance the tolerance of the strain to high-salt-content amino acid wastewater; and 2. fermentation of strain: under appropriate fermenting conditions, carrying out liquid ventilation culture in a fermentation tank for some time to obtain the Bacillus subtilis for feeds. The microzyme is centrifugated, collected, dried in a 70 DEG C drying oven to constant weight, and weighed. The calculation indicates that every liter of high-salt-content amino acid wastewater can obtain 35g of Bacillus subtilis at the maximum. The method can effectively utilize amino acids, microelements and growth factors contained in the wastewater, greatly lowers the fermenting cost of the Bacillus subtilis for feeds, greatly reduces the sewage treatment load, achieves the comprehensive utilization effect, and has obvious economic and social benefits.

A process for extracting scandium (Sc) from the silt in river includes such steps as classifying, gravitational separation, magnetic dressing, electric dressing to obtain titanaugite concentrate, leaching, extracting, phase transfer, and purifying. Its advantages are high effect and low cost.

The invention discloses a production method of suture prepared from nutria tendon tissue and its tensioner. The method comprises extracting tendon tissue from nutria, dewatering, degreasing, sterilizing, air-drying under tensile force, screening to obtain qualified tissue, separating out suture of different specification, and matching with non damage perforate pin or notch pin according to specification, and preparing into sutural line with pin. The inventive suture needle has smooth surface, uniform strip, accurate linear diameter, and good tensile force.

The invention discloses a method for synchronously separating and preparing salidroside and rosavin from rhodiola rosea, comprising the following steps: (1) taking the rhodiola rosea as a raw material, and extracting by using analcohol aqueous solution containing a deep-eutectic solvent, wherein the deep-eutectic solvent has the effects of emulsifying, wetting, being assistant in dissolving and the like, and is beneficial for the extraction of the salidroside and the rosavin; (2) preparing a salidrosidecrude extracting solution and a rosavin crude extracting solution respectively from the extract by combining a mixed macroporous resinexpanded bed technology and a gradient elution technology; (3) preparing a salidrosideextract and a rosavin extract from the salidrosidecrude extracting solution and the rosavin crude extracting solution respectively by using the mixed macroporous resinexpanded bed technology again. Through HPLC content testing, the content of the salidroside in the salidroside extract is 40 percent to 80 percent, and the recovery is 60 percent to 88 percent; the content of the rosavin in the rosavinextract is 30 percent to 70 percent, and the recovery is 65 percent to 85 percent.

The invention discloses an inner surface and outer surface jet flow descaling system for a big-diameter metal pipe wall, which is characterized by comprising at least one spraying unit, wherein the spraying unit is used for simultaneously spraying mixed jet flow to the inner surface and the outer surface of the metal pipe wall and carrying out descaling; the inner surface and outer surface jet flow descaling system at least comprises two groups of spraying units, wherein one group is an inner spraying subunit used for descaling the inner surface of the metal pipe wall, and the other group is an outer spraying subunit used for descaling the outer surface of the metal pipe wall; the descaling system also comprises an actuating mechanism used for realizing a purpose that the big-diameter metal pipe wall carries out spiral motion; and therefore, the big-diameter metal pipe wall realizes the rotating motion around the self axis while axially moving. According to a special arrangement mode of mixed jet flow nozzles and a special motion mode of the big-diameter cold-state metal pipe wall, a continuous efficient mode that roll scales on the inner surface and the outer surface of the big-diameter cold-state metal pipe wall are synchronously removed can be realized so as to satisfy the processing requirement of the post-process.

The invention discloses a preparation method of a polyamide 5X fiber, and the polyamide 5X fiber prepared therethrough. The preparation method is characterized in that a spinning raw material is spun,and the spinning raw material comprises 1,5-pentanediamine and a dibasic acid, or polyamide obtained by polymerizing 1,5-pentanediamine and the dibasic acid as monomers; and the number of holes in aspinneret during spinning is 3500-10000 f. The preparation method of the polyamide 5X fiber can further improve the spinning efficiency and increase the spinning production capacity while ensuring that all the properties of the obtained fiber are unchanged or even slightly improved.