50results about How to "High preparation rate" patented technology

An electrical plug connector assembly has an insulative housing, a first terminal set, a second terminal set and a circuit board. The first and second terminal sets are mounted in the insulative housing. The first terminal set has multiple first conductive terminals each including a first soldering section. The second terminal set has multiple second conductive terminals each including a second soldering section. The first and second soldering sections are soldered on an identical surface of the circuit board such that only one single soldering process is required to solder all of the first and second conductive terminals to the circuit board. The production rate of the electrical plug connector assembly is therefore improved.

The invention discloses an electronic file quality inspection and supervision system. The system comprises a file collection module, a file transmission module, a file detection module, a quality query module, a statistical report module, an early warning module and a system setting module. The electronic file quality inspection and supervision system is very simple and fast to operate, greatly makes up for the defects of manual supervision, achieves timely early warning of electronic file errors, reminds a carrier to change errors and supplements uploading, generates various statistical reports according to user requirements, is more visual and persuasive, can generate case reports through one key, and improves the user experience. The improvement of the manufacturing rate of electronic documents of courts at all levels is promoted.

A hollow light-weight, low-cost, and high-performance 3D Luneburg lens structure using partially-metalized thin film, string, threads, fiber or wire base metamaterial to implement the continuously varying relative permittivity profile, characteristic of Luneburg lens structures, is disclosed. The hollow light-weight lens structure is based on the effective medium approach and may be implemented by a number of means. Further, most of the volume of the lens structure is free-space, thus the weight of the lens is significantly less than conventional 3D Luneburg lens structures of the same dimensions.

The invention discloses a preparation method of a lignocellulose degrading strain protoplast. The preparation method comprises the following steps: after activating ganoderma lipsiense strains, inoculating a high-quality strain into a liquid strain activation medium for expansion culture, and selecting a 9-day mycelium to prepare the protoplast; conducting washing, sterile water washing and osmotic pressure stabilizer washing on the mycelium sequentially, adding 30 mL of mercaptoethanol for shock treatment, filtering after hyphae are broken, then washing with 0.7 mol/L of MgSO4 solution, centrifuging, taking a precipitate with a supernatant removed, removing moisture, placing the mycelium precipitate and 1.0% lywallzyme solution in the proportion of 1:10 by weight in a centrifuge tube, shaking evenly, hydrolyzing for 3.0 h and filtering. The precipitate obtained after centrifugation of the obtained filtrate is the protoplast of the mycelium of ganoderma lipsiense. The protoplast preparation rate is reaches high up to 9.15*106 cells/mL.

The invention discloses a preparation and regeneration method of zymononas mobilis protoplast. The preparation and regeneration method comprises the following steps: preparing a bacterium inclined cultivation medium, activating a thallus, preparing a seed culture liquid, performing enzymolysis on cell walls, preparing protoplast suspension, and regenerating protoplast. By adopting the preparation and regeneration method of the zymononas mobilis protoplast, the preparation rate of the protoplast of the zymononas mobilis can be up to 90.0% at most, the regeneration rate can be up to 22.4%, the operation process is simple, high in repeatability and high in preparation rate, the activity of the protoplast is relatively well maintained, and the later preparation and the screening of fusant are facilitated.

The invention discloses a leafcutter ant palate-based bionic banana fiber extraction device. The device comprises a rack, a cutting mechanism and a flattening mechanism located on the front side of the cutting mechanism, the cutting mechanism comprises a fixed knife wheel, a fixed knife is arranged on the surface of the fixed knife wheel, an L-shaped notch is formed in the front end of the fixed knife, big tooth edges and small tooth edges are staggerly distributed at the L-shaped notch, the flattening mechanism comprises an upper pressing roller and a lower pressing roller which are vertically arranged in parallel, an upper block sleeves the upper pressing roller, a lower block sleeves the lower pressing roller, and the top of the rack is in bolt connection with a support which is internally provided with the upper block and the lower block. Accordingly, by means of V-shaped cutting edges formed between the big tooth edges and the small tooth edges, the impurity rate and winding blocking can be effectively reduced, due to the fact that the impurity rate is reduced, the finally actually prepared fiber preparation rate is increased, the contact area between the fixed knife and the fiber surface is increased, the processing efficiency is improved, damage of the fixed knife to banana fiber in the processing process is reduced, the finished product rate is increased, and blocking is reduced.

Relating to the technical field of concrete, the invention discloses a low-slump loss concrete and a preparation method thereof. According to technical key points, the low-slump loss concrete comprises the following components by weight: 24-42 parts of cement; 7-10 parts of fly ash; 90-100 parts of sandstone; 95-110 parts of gravel; 9-10 parts of clay; 19-21 parts of water; 0.48-0.84 part of bentonite; 0.4-0.8 part of a polycarboxylate superplasticizer; 0.01-0.02 part of an admixture; and 0.15-0.2 part of glass fiber; wherein the admixture is prepared by the steps of: adding isopropanol and water into a reaction kettle, mixing the substances uniformly, performing heating, adding acrylic acid and an initiator dropwise at the same time, then carrying out heat preservation reaction for 2h, performing cooling to 25DEG C, and using a NaOH solution with a mass fraction of 30% to adjust the pH to 9-11. The concrete prepared according to the formula provided by the invention has the advantagesof small slump loss and high strength.

The invention relates to a roller type bearing spinning closing-in device. The device comprises a tool handle, a spinning head, embedded bolts, a bolt rod, a round frame base and a guide shaft. A plurality of bolt holes are formed in the spinning head, the bolt holes run through the spinning head, the bolt holes are formed at equal angles with the central axis of the spinning head as the axis, theincluded angle between each bolt hole and the horizontal plane is 25 degrees, the tool handle is perpendicular to the spinning head and located in the middle of the spinning head, the guide shaft iscylindrical, the outer circle diameter of the guide shaft is matched with the size of an inner hole of a to-be-machined bearing, and the length of the guide shaft is matched with the thickness of theto-be-machined bearing. The guide shaft is cylindrical, the outer circle diameter of the guide shaft is matched with the size of the inner hole of the to-be-machined bearing, and the length of the guide shaft is matched with the thickness of the to-be-machined bearing. The device is simple in structure, self-manufacturing and reconstruction can be realized, production is simple and convenient, themachining mode is simple, abrasion of the closing-in device is reduced, and the service life of the closing-in device is effectively prolonged.

The invention provides a preparation method of environment-friendly pigment yellow 151, relates to a preparation method for preparing pigment yellow 151 by reacting an intermediate with water bath heating, and belongs to the field of chemical production. According to the preparation method for preparing the pigment yellow 151 by matching overall gradient heating with stirring to carry out rapid dispersion reaction and combining an intermediate with an alkaline aqueous solution of from o-phenylenediamine and urea which are used as raw materials to prepare the intermediate, the intermediate reacts with an anthranilic acid alkaline aqueous solution, the temperature and stirring are matched to carry out high-efficiency reaction, high-efficiency dispersion preparation is carried out, and the obtained component is uniform; and heating and vacuum treatment is adopted in the whole reaction, so high preparation rate, full reaction and reduction of the production cost are achieved.

The invention discloses a method for preparing a simulated cellulose enzyme from mixed acid. According to the method, the simulated enzyme is synthesized at high selectivity and high yield through one-step synthesis reaction by taking polybasic carboxylic acid, inorganic acid and an ionic liquid as raw materials. The synthesized enzyme can be used for efficiently degrading cellulose to prepare reducing sugar. The simulated enzyme can be recycled for many times. The simulated cellulose enzyme prepared by using the method is good in catalytic effect and is not easily degraded so as to be the simulated cellulose enzyme with an application potential.

The invention relates to cloning expression and polyclonal antibody preparation of black-headed gull IFN alpha protein and belongs to the technical field of bioengineering. The invention provides cloning expression and polyclonal antibody preparation of the black-headed gull IFN alpha protein. Part of fragments of the black-headed gull alpha interferon gene are cloned, a prokaryotic expression recombinant vector is constructed, recombinant protein is obtained to prepare a polyclonal antibody, a theoretical basis is provided for later researches on the antiviral activity of the polyclonal antibody and the antiviral mechanism of the black-headed gull alpha interferon gene, a new path is developed for prevention and control of epidemic diseases of black-headed gulls, and veterinary public health is deeply affected. When rabbits are immunized, a Freund's complete adjuvant and an incomplete adjuvant are selectively applied to be matched with protein injection, and the polyclonal antibody can be efficiently and rapidly prepared. The agar diffusion test proves that the recombinant protein of partial segment of the black-headed gull IFN alpha gene has favorable immunogenicity, and the titer of the antibody can reach 1: 8. The method can be well used for subsequent researches on the antiviral mechanism of the black-headed gull IFN alpha protein.

The invention discloses a preparation method of a thalassia hemperichii protoplast and belongs to the field of plant cell engineering. The preparation method comprises the following steps: S1, takingyoung leaves of thalassia hemperichii, washing them with sterile seawater, and temporarily culturing them to obtain a raw material 1; S2, putting the raw material 1 obtained in the step S1 into a pretreatment liquid for soaking to obtain a raw material 2; S3, taking out the raw material 2 obtained in the step S2, sucking dry water, cutting them into blocks, adding enzyme liquid for enzymolysis, and obtaining enzymolysis tissues; S4, filtering the enzymolysis tissue obtained in the step S3 to obtain filtrate; S5, centrifuging the filtrate obtained in the step S4, discarding the supernatant, suspending the precipitate with a resuspension solution, centrifuging, and discarding the supernatant to obtain a precipitate; S6, suspending the precipitate obtained in S5 with a resuspension solution to obtain the thalassia hemperichii protoplast. The preparation method of the thalassia hemperichii protoplast is established for the first time, and the thalassia hemperichii protoplast obtained by the method is high in yield and high in survival rate.

The embodiment of the invention provides a method for preparing capsules by a beverage preparation device and a machine-readable storage medium, which belong to the technical field of product identification and solve the problem of incomplete identification of information on the capsules in the prior art. The method for preparing the capsules by the beverage preparation device comprises the following steps of: obtaining an image to be identified on a diaphragm, wherein the obtained image to be identified includes a plurality of micro image units; determining a code combination corresponding tothe obtained image to be identified according to the corresponding relationship between the micro image units and preset codes; matching the type code corresponding to the type of a beverage preparedon the beverage preparation device with the code combination to obtain a similarity threshold value between each type code and the code combination; determining the beverage type corresponding to thetype code to which the maximum value in the similarity threshold value belongs as the type of the beverage to be prepared; and preparing the capsule according to preset preparation parameters corresponding to the type of the beverage to be prepared. The embodiment of the invention is applicable to the process of preparing the capsules by the beverage preparation device.

The invention discloses a purification method of NN-dimethylacetamide, which is characterized by comprising the following steps of (1) connecting a container filled with the industrial-grade NN-dimethylacetamide with a condenser connected with a water circulating vacuum pump, placing the container in a heating device, and connecting the other end of the condenser with a collection device through apacked column; (2) setting the ultrahigh temperature of the heating device to be 200 DEG C; (3) turning on the power supply of the water circulation vacuum pump, controlling the vacuum degree to be -0.080 to -0.090, and keeping the boiling temperature of the NN-dimethylacetamide in the container to be 115 to 125 DEG C; and (4) carrying out total reflux when liquid drips in the condenser, and turning on the power supply of the collection device after total reflux so as to collect the purified NN-dimethylacetamide, wherein the collection of the NN-dimethylacetamide in the step (4) is divided into four stages, the volume ratio of the reagents collected in sequence is 7: 16: 8: 9, and the reagent collected at the third stage is the high-purity NN-dimethylacetamide.