62results about How to "The production is effective" patented technology

The invention provides a method for purifying waste water and recovering waste materials on line in electroplating and chemical plating processes. The method comprises the following steps of: directly arranging a capacitance deionizer in a water washing device on a production line to adsorb various negative ions and positive ions in waste water during charging a battery so as to purify the waste water; and then releasing and recovering waste materials through electrode discharge so as to realize zero release of pollutants. The invention ensures that the capacitance deionization method is suitable for the manufacturing processes of various electroplating or chemical plating products through the optimization of process parameters. Through on-line purification and recycle of washing water, the burden of the traditional waste water treatment system is obviously reduced, meanwhile, the quality of plating pieces is guaranteed because the water quality of the washing water is obviously improved, and the classified recovery of waste materials can be achieved. The method can also obviously reduce the COD in the waste water and has wide application prospect in the fields of electroplating and chemical plating.

Percents of negative ion vitrified enamel in the total weight is as follow. Vitrified enamel basic material is 80-90%. Tourmaline is 5-20%. The invention adopts vitrified enamel to be as carrier of tourmaline micromeritic and can improve the function of producing negative ion as possible. When the enamelware mixing tourmaline micromeritic is made to products, bathtub, basin, tea mug et, it will slow different functions. The vitrified enamel is prepared simply with low cost and is secure.

The invention relates to an independent chirp parameter regulating system for realizing a two-tone laser field. A beam splitting piece which is inserted into an entrance of a pulse compressor of a femtosecond pulse laser divides a light source into two beams of light; the first beam of light enters into one pulse compressor and a hollow optical chirp system, and the other beam of light passes through a plane mirror B and enters into the other pulse compressor and the other hollow optical chirp system; the two beams of light are synthetized into one beam of light after passing through a reflector delayed time system and a frequency doubling crystal; and the synthesized beam of light passes through a reversible plane mirror and then is connected with a higher-order harmonic generating and detecting device and a spectrum phase interferometry instrument respectively so as to form the independent chirp parameter regulating system for realizing the two-tone laser field. The independent chirp parameter regulating system can carry out independent pulse compression on light with amplified energy in a femtosecond amplifier so as to acquire two beams of laser light sources capable of independently regulating the chirps; and the independent chirp parameter regulating system is simple in structure and easy to operate.

The invention belongs to the field of containers special for storage and particularly discloses an insect-preventing granary. The insect-preventing granary comprises a granary body, wherein the granary body is provided with a granary cover. The insect-preventing granary further comprises a filter plate, an installing plate, a turntable and a motor, wherein the motor is fixed to the bottom of the granary body, the turntable is coaxially fixed to an output shaft of the motor, the turntable and the granary body form an air inlet chamber, a water tank and aluminum phosphide are arranged in the air inlet chamber, the turntable is provided with a first air inlet hole, the filter plate is arranged in the granary body in a sliding mode, the filter plate and the upper portion of the granary body, form a grain storage chamber, the installing plate is fixed in the granary body and mutually attaches to the turntable, the installing plate is provided with a second air inlet hole matched with the first air inlet hole, an elastic part is arranged between the filter plate and the installing plate, the side wall of the granary body is provided with a solution cavity communicated with the top of the grain storage chamber, and the solution cavity contains a copper sulfate solution. By adopting the scheme, hydrogen phosphide gas can be effectively produced, an insecticidal efficacy is good, and harm to a human body is small.

The present invention provides an excellent fluid hydrodynamic bearing high in rotational precision and load capacity and low in torque. The hydrodynamic bearing (101) includes a shaft member (104) and an outer ring portion (102) rotatable relative to the shaft member (104). A radial gap (103) is provided between the shaft member (104) and the outer ring portion (102), and the outer peripheral surface (107) of the shaft member (104) includes a first surface area (108), a second surface area (109) and a first fluid dynamic pressure holding region (110). A dynamic pressure groove (111) is formed in the first surface area (108), so that in the case where the outer ring portion (102) is rotated from the first surface area (108) to the second surface area (109) through the first fluid dynamic pressure holding area (110) with respect to the shaft member (104), in the first load-bearing region located on the first fluid dynamic pressure holding region (110) in the radial gap (103), dynamic pressure is generated from the first surface region (108) to the first fluid dynamic pressure holding region (110).

The invention discloses a fiber raw material opener. The opener comprises an opener shell and a preprocessing machine shell. The opener shell forms an opening cavity, the preprocessing machine shell forms a preprocessing cavity, the inlet end of the opening cavity is connected with the outlet end of the preprocessing cavity, a driven roller is arranged between the two inner walls of the opening cavity and located at the inlet end, a driving roller is arranged between the two inner walls of the opening cavity and located at the outlet end, a transmission chain is disposed between the driving roller and the driven roller in a sleeving mode, a conveying mesh belt is arranged on the transmission chain, a plurality of brads are arranged on the conveying mesh belt, a conveying belt is disposed in the preprocessing cavity, a feed hopper communicated with the preprocessing cavity is arranged on the left side of the upper end of the preprocessing machine shell, and a plurality of sprayers are evenly distributed in the preprocessing cavity and on the top above the conveying belt. The opener is simple in structure, wet fiber raw materials can be wetted conveniently, dust spread is avoided, tiny impurities can be adsorbed, raw material opening quality is improved, overall strength is high, and the opener is resistant to corrosion and oxidation.

The invention relates to the technical field of complex microbial agents for treating high ammonia nitrogen wastewater, and discloses a complex microbial agent used for treating high ammonia nitrogenwastewater and a preparation method thereof. Compound microbial digestive bacteria liquid in a step (c),compound microbial adsorption bacteria liquid in a step (e) and curing cross-linked adsorption particles in a step (g) are mixed according to a volume ratio being 3-5: 3-5: 2-4 so as to obtain the complex microbial agent, so that the growth of harmful microorganisms can be inhibited, the COD andammonia nitrogen content in wastewater can be effectively reduced, the removal rate is obviously superior to single strains, self-purification functions of water can be enhanced, and the decomposition of organic matters in the water can be accelerated; significant water purification effects can be achieved; the decomposition ability on ammonia nitrogen and stability of the complex microbial agentcan be significantly enhanced; dominant bacterial communities can be formed in wastewater; and short treatment time can be realized, and the ammonia nitrogen indexes in wastewater can be rapidly reduced.

The invention relates to a groove wall device and a method for making grooves in the ground for generating a groove in the ground to isolate or partition the wall. The groove wall device has a carrier device on which a floor removal unit is vertically adjustably mounted. The invention is characterized in that a first carrier device and a second carrier device are provided, which are connected to one another by way of a yoke, and that the floor removal unit is arranged so as to be adjustable below the yoke.

The invention discloses an environment-friendly preparation process of N-(4-ethoxy carbonyl phenyl)-N'-methyl-N'-phenyl formamidine. The process comprises the steps of firstly, making p-nitrobenzoic acid be subjected to an esterification reaction and catalytic hydrogenation, obtaining ethyl p-aminobenzoate, then making ethyl p-aminobenzoate be subjected to two steps of condensation reactions, and obtaining N-(4-ethoxy carbonyl phenyl)-N'-methyl-N'-phenyl formamidine, wherein ethanol adopted in the esterification reaction is recycled and processed ethanol, and the recycled and processed ethanol is obtained by collecting, recycling and processing ethanol generated in the condensation reactions. According to the process, the ethanol generated in the condensation reactions are recycled and processed and then applied to the esterification reaction, production cost is lowered, environmental pollution is reduced, the process is an environment-friendly preparation process, and in particular, compared with absolute ethyl alcohol on the market, the ethanol recycled and processed through the process hardly has influence on the esterification effect.

The invention discloses a portable normal-pressure microwave plasma torch generation device and method. The portable normal-pressure microwave plasma torch generation device comprises a portable microwave torch plasma emission head, a high-power coaxial transmission line and an all-solid-state microwave power source, wherein the portable microwave torch plasma emission head comprises a ceramic ring, a solid electrode, a metal nozzle, an insulation ring, an adaptor, a first air inlet pipe and a second air inlet pipe. Through implementing the method and the device, provided by the invention, microwave plasma capable of providing long-distance portable operation can be generated, the device does not need high-voltage direct current of several kilovolts, a transmission line component such as three pins or a short-circuit piston in a microwave torch system is not needed to be operated by manual, the impedance of a microwave transmission line is automatically matched and adjusted, and the optimal efficiency of microwave coupling entering plasma is achieved.

The invention relates to the technical field of molecular biology, in particular to a codon-optimized peste des petits ruminants virus F gene nucleic acid vaccine. The codon optimization gene sequencegives consideration to the codon use preference of mammalian cells, and a sequence is shown as SEQ ID NO. 2. According to the peste des petits ruminants virus F gene nucleic acid vaccine, after signal peptide at the 5'end of an F gene is removed, the remaining sequence is optimized through codons, the 5 'end is connected with an encephalitis B virus signal peptide sequence, and finally the sequence is inserted into an eukaryotic expression vector. The nucleic acid vaccine effectively stimulates an immune system after immunizing a mouse, generates a neutralizing antibody and reflects good immunogenicity.

The invention discloses a construction method of a disease animal model and a fusion protein. The fusion protein comprises a DNA (Deoxyribose Nucleic Acid) binding structural domain of the Rad51, cytosine deaminase APOBEC3A and nuclease. The method comprises the following steps: introducing the fusion protein and sgRNA into animal cells, and carrying out gene editing on a target gene. The invention provides a novel platform for efficiently generating the disease animal model, and the manufacturing process of different animal models is greatly promoted.

The invention relates to the field of nucleic acid vaccines, in particular to a varicella-herpes zoster mRNA vaccine and a preparation method and application thereof. The mRNA for coding the varicella-zoster virus antigen provided by the invention contains a coding region for coding glycoprotein E of the varicella-zoster virus, and the mRNA can induce specific antibody response and CD4 + T cell response aiming at the glycoprotein E when being delivered into a body.

The invention discloses a method for reducing error in polar altitude vacuum measurement of ESD (Electro Simulated Desorption) neutral particles, and belongs to the field of measurement. Devices adopted in the method include a vacuum valve, an ionization gauge, a vacuum chamber, a vacuum pump group and a quadrupole mass spectrograph, wherein the vacuum valve, the ionization gauge, the vacuum pump group and the quadrupole mass spectrograph are respectively connected with the vacuum chamber; the quadrupole mass spectrograph is capable of separating electron excitation desorption ions and gas-phase ions and an energy analyzer is installed between an ion source and a quadrupole rod; the vacuum valve is of a full metal structure; and the lower measurement limit of the ionization gauge is 10-10Pa magnitude. By utilizing the method, the problem that in the full-pressure measurement, the ionization gauge and the like can effectively separate ESD ions and gas phase ions but cannot discriminate ions generated from ESD neutral particles doped in the gas phase ions is solved; the error in polar altitude vacuum measurement is reduced; and the lower limit in accurate measurement is extended.

The invention provides a recombinant S protein, a recombinant plasmid and a recombinant bacterium of a novel coronavirus and application of the recombinant S protein, the recombinant plasmid and the recombinant bacterium in preparation of an exosome drug or an exosome vaccine, and relates to the technical field of vaccines. According to the invention, the recombinant S protein comprises a subunit S1 and a subunit S2 of a spike protein S; the S1 protein and the S2 protein are connected through utilizing a linker to form the recombinant S protein; all the components are mutually coordinated and supplemented; and the recombinant S protein has good immunogenicity, safety and biological activity and can induce an organism to generate an effective antibody, so that the growth of the novel coronavirus is inhibited, and the infection of the novel coronavirus can be effectively prevented. According to the invention, the recombinant S protein is electrically transferred into an exosome by adopting an artificial exosome carrying form, so that the pharmacokinetic and pharmacodynamic characteristics of a carried therapeutic agent can be improved, thereby enhancing the therapeutic effect and meanwhile, reducing the adverse toxicity and side effects; and the recombinant S protein has wide cell adhesion molecules and is beneficial for penetrating a biological barrier.

The present invention relates to a composition for producing an extracellular matrix from a eukaryotic cell, the composition comprising a polypeptide or compound capable of specifically binding to a microtubule associated serine/threonine kinase family member 4 (MAST4) protein or a fragment thereof or a polynucleotide, polypeptide or compound capable of specifically binding to a nucleic acid coding for the MAST4 protein or a fragment thereof, and a composition for promoting cartilage regeneration, comprising the same composition.