291results about How to "Improve synthesis ability" patented technology

The invention relates to an injectable crosslinked hyaluronic acid gel and a preparation method thereof. The injectable crosslinked hyaluronic acid gel is prepared by blending hyaluronic acid gel granules and chlorinated sodium phosphate physiological buffer solution; the hyaluronic acid gel granules are prepared by comprising the steps of crosslinking treatment, emulsion crosslinking granulation, purification and drying and swelling, filling and sterilization technologies. The hyaluronic acid gel granules are uniform in granule size, the residual of the crosslinking agent is less than 0.2ppm, the injection pushing is proper, and the in-vivo degradation time can last more than 8-12 months. The implant has an excellent esthetical restoration effect, is applicable to being injected to and subcutaneous dermis deep layer to subcutaneous superficial layer, restoration of moderate to severe wrinkles or folds, and can satisfy the restoration demand of wrinkles or folds caused due to skin aging.

The invention discloses a method for positioning and tracking eye corners and mouth corners of a human face and a device thereof. In the invention, firstly a human face detection algorithm is adopted to obtain a position of the human face; an AAM algorithm is adopted to obtain an affined transformation coefficient for the detected human face and preliminary positions of six corner points of the eyes and the mouth on the human face; AdaBoost training models of all the corner points are combined to search the positions of candidate points in a neighborhood, so as to obtain a certain number of candidate points for each corner point; Harris corner point features of all the corner points are calculated, and the number of the candidate points of all the corner points are reduced according to certain rules; the candidate points of the corner points of the left eye, the right eye and the mouth are respectively combined into pairs; the point pairs are gradually eliminated by adopting a plurality of features, and finally an optimum result is returned. The proposal provided by the embodiment of the invention solves the problem of inaccurate positioning of the corner points of the eyes and the mouth of the human face in all kinds of gestures, and realizes the positioning of outer profiles of the eyes and the mouth of the human face, thereby providing a feasible scheme for driving human face two-dimensional and three-dimensional models.

The embodiment of the application relates to an image processing method and device, electronic equipment and a computer readable storage medium. The above method includes the following steps: acquiring at least two frames of first-type images acquired by a first camera, wherein the exposure time of the at least two frames of first-type images is the same; performing registration on the at least two frames of first-type images to obtain alignment parameters; acquiring at least two frames of second-type images acquired by a second camera, wherein the exposure time of the at least two frames of second-type images is different; performing registration on the at least two frames of second-type images according to the alignment parameters; and synthesizing the registered second-type images to generate a high dynamic range image. According to the image processing method and device, the electronic equipment and the computer readable storage medium, the accuracy of image registration can be improved, and the synthesis effect of HDR images can be improved.

Thermostable viral polymerases exhibiting a combination of activities selected from, proofreading (3′-5′) exonuclease activity, nick translating (5′-3′) nuclease activity, synthetic primer-initiated polymerase activity, nick-initiated polymerase activity, reverse transcriptase activity, strand displacement activity, and / or decreased discrimination against incorporation of nucleotide analogs. Also provided are compositions including the polymerases, polynucleotides encoding the polymerases and methods of using the polymerases.

The invention belongs to the skin care field and in particular relates to a skin care product which is added with medicinal plant extract and keratin. The skin care product is made from the components with the following weight percentage of 1-20% of the medicinal plant extract, 0.2-10% of the keratin, 5-15% of esters, 5-11% of oils, 1-4% of high fatty alcohol, 2-8% of emulsifier, 0.1-0.4% of carbomer, 0.1-0.4% of triethanolamine (99%), 0.1-1.0% of preservative and 0.1-1.0% of essence, and the rest is water. The medicinal plant extract added in the skin care product has the efficacies of promoting blood circulation, removing blood stasis, benefiting vital energy and strengthening essence, delays skin aging process, increases the skin smoothness and elasticity and has good antibacterial and antiphlogistic functions. The added keratin can promote the cell enlargement and the collagen synthesis, reduce skin fine cracks and wrinkles, keep skin moisture and strengthen the skin compactness and elasticity.

The invention relates to the technical field of biology, and discloses a coenzyme-Q10-production engineered bacteria construction method, engineered bacteria, and an application thereof. The method comprises the steps that: a, total genomic DNA is extracted from Rhodobacter sphaeroides cacterial liquid; b, bchG homologous gene is obtained by amplification with a polymerase chain reaction; c, the amplified homologous gene is connected with broad-host plasmid, such that recombinant vector is constructed; d, the recombinant vector is transferred to Escherichia coli S17-1; and e, the Escherichia coli S17-1 is subjected to conjugal transfer with the Rhodobacter sphaeroides, such that the engineered bacteria with chlorophyll synthesis gene bchG knocked out are obtained. According to the method provided by the invention for improving coenzyme Q10 yield through knocking out Rhodobacter sphaeroides chlorophyll synthesis gene, coenzyme Q10 synthesis capacity can be improved by higher than approximately 15%. The method is suitable for coenzyme Q10 large-scale industrial production.

The invention discloses a method for producing glutathione by fermentation of recombinant Escherichia coli. The method comprises the following stages of: (1) carrying out batch culture or fed-batch culture to obtain a great deal of recombinant Escherichia coli cells expressing exogenous bifunctional glutathione synthetase, wherein the bifunctional glutathione synthetase is protein which simultaneously has activities of gamma-glutamyl cysteine synthetase and glutathione synthetase; (2) carrying out over-expression on the bifunctional glutathione synthetase obtained in the stage (1); and (3) adding L-glutamic acid, L-cysteine and glycine precursor amino acids to realize high-efficiency production of glutathione by fermentation. According to the invention, the recombinant Escherichia coli strain expressing the exogenous bifunctional glutathione synthetase is used for producing glutathione by fermentation, so that the method not only has high GSH (Glutathione) synthesizing capability, but also is free from GSH feedback inhibition, and has the advantages of rapid reaction, high glutathione yield and short production period.

The invention provides a 3D size measuring method. The method comprises the following steps of acquiring information of multiple images of a first target at different angles; building a first point cloud 3D model of the first target according to the information of the multiple images; and comparing the first point cloud 3D model with point cloud 3D model samples bound with identity information andpre-stored in a first sample database one by one, finding the point cloud 3D model sample matched with the first point cloud 3D model, and measuring the geometric difference between the first point cloud 3D model and the point cloud 3D model sample, wherein the three images in the multiple images at least have parts representing the same region of a target object, and a point cloud is a sparse point cloud or a dense point cloud. It is proposed that the sparse or dense point cloud of the target object and the sample are used for performing measurement / comparison, so that the measurement / comparison speed is increased. It is creatively proposed that the picture quality influences the 3D measurement / comparison precision and speed. By means of optimizing a relation between adjacent shot pictures, the obtained picture is guaranteed to be high in synthesis precision.

The invention provides a preparation method of strong aromatic Chinese spirits pit mud by adding red yeast esterified enzyme, and relates to the technical field of spirits making. The preparation method comprises the following steps of: adding 10kg of red yeast esterified enzyme and 10kg of yeast powder into mixed infiltrating body of 35kg of yellow clay, 3kg of old pit mud, 20kg of mud carbon, 5kg of bean cake powder, 5kg of double-wheel bottom flavour grains, 0.35kg of silkworm chrysalis powder, 2kg of yellow water, 10kg of hot vinasse, 10kg of 20 to 22-degree cocktail and 5kg of nutrient solution which respectively can pass a screen mesh of 10 and have the pH value of 5.5-6.0; vaccinating 10kg of compound hexanoic acid bacteria-enriched liquid, stirring and mixing to prepare pit mud grains; sealing the periphery of the pit mud grains by a plastic film; and cultivating for 30-35 days under the anaerobic condition at the temperature of 33-35 DEG C, and detecting the components and the beneficial microbe bacterial counts of the pit mud to obtain the strong aromatic Chinese spirits pit mud by adding the red yeast esterified enzyme. The preparation method is used for cultivating the pit mud in a strong aromatic Chinese spirits preparation technology. The preparation highlights a nitrogen source, trace element and the red yeast esterified enzyme which influences aroma-producing substances and flavor-producing substances of the Chinese spirits.

The invention discloses a Wenchang chicken feed containing corn starch and a preparation method thereof, and the preparation method comprises the following steps: selecting the high-purity corn starch, and further adding corn, soybean meal, corn gluten meal, palm kernel meal and other raw materials, crushing, and uniformly mixing; then adding soybean oil, methionine, threonine, multiple vitamins and other nutritional agents, uniformly mixing, and then performing steam modulation for enabling the corn starch to achieve a certain degree of ripening; and further performing granulation, thus obtaining a finished product. The Wenchang chicken feed can be used for promoting the subcutaneous, intramuscular and abdominal fat deposition of Wenchang chickens, improving the carcass quality and the chicken flavor, further saving the using amount of high-price grease and having no influence on the culture effect or improving the culture effect.

The invention discloses a strain for generating 3-hydroxy butanone and the application thereof, which belong to the field of bioengineering technology. The stain is named as Paenibacillus polymyxa ME-J25 and is preserved in China General Microbiological Culture Collection Center with the preservation number of CGMCC No.2505. The strain can be fermented to generate 3-hydroxy butanone with higher concentration, higher transformation efficiency and extremely low content of the reduced byproduct 2,3-butanediol of 3-hydroxy butanone, and is suitable for industrial production of 3-hydroxy butanone.

The invention discloses a Bacillus alcalophilus SD 7903 with the preservation number of CGMCC No. 3158, belonging to the field of microbial technology; the invention also discloses a culture method thereof and an application in producing Ectoine. The Bacillus alcalophilus has higher Ectoine synthesis capability and is a strain of Gram positive bacteria, thus expanding biological resource utilization space and having good industrial application prospect in respect to production of Ectoine mainly by applying Gram negative bacteria in the current industry.