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2297 results about "Feather" patented technology

Feathers are epidermal growths that form the distinctive outer covering, or plumage, on dinosaurs, birds and possibly other archosauromorphs. They are considered the most complex integumentary structures found in vertebrates and a premier example of a complex evolutionary novelty. They are among the characteristics that distinguish the extant birds from other living groups.

Green bioactive organic fertilizer

The invention relates to a green bioactive organic fertilizer, which effectively solves the problems of soil hardening, environmental pollution, and harm from residual chemical substances of grains, vegetables and fruits to human bodies. The solved technical scheme is that the green bioactive organic fertilizer is prepared by taking sludge, waste powder, poultry and animal feces, straw powder, residues, feather powder, amino acid original powder, phosphoesterases complex, a first group of complex bacteria, and a second group of complex bacteria as raw materials; uniformly mixing the sludge, the waste powder, the poultry and animal feces, the straw powder, the phosphoesterases complex and the first group of complex bacteria; stacking and covering the mixture with a sack for performing a biogenic reaction, and keeping a reaction product at the temperature of 50 to 55 DEG C for 2 days; adding the residues, the feather powder, the amino acid original powder into the reaction product, uniformly mixing the mixture for performing a secondary reaction, and keeping a reaction product at the temperature of 50 to 55 DEG C for 7 to 10 days; and adding the second complex bacteria into the latest reaction product, uniformly mixing, palletizing, checking and packaging the mixture. The green bioactive organic fertilizer has the advantages of scientific formulation, simple preparation method, good effect, no pollution and no harm to human bodies.
Owner:徐贵阁

Image stitching method based on overlapping region scale-invariant feather transform (SIFT) feature points

The invention discloses an image stitching method based on overlapping region scale-invariant feather transform (SIFT) feature points and belongs to the technical field of image processing. Aiming at the problems that the algorithm computation is large and subsequent matching error and computing redundancy are easily caused due to the non-overlapping region features because of extraction of the features of the whole image in the conventional image stitching algorithm based on features, the invention provides an image stitching method based on the overlapping region SIFT feature points. According to the method, only the feature points in the image overlapping region are extracted, the number of the feature points is reduced, and the algorithm computation is greatly reduced; and moreover, the feature points are represented by employing an improved SIFT feature vector extraction method, the computation during feature point matching is further reduced, and the mismatching rate is reduced. The invention also discloses an image stitching method with optical imaging difference, wherein the image stitching method comprises the following steps of: converting two images with optical imaging difference to be stitched to a cylindrical coordinate space by utilizing projection transformation, and stitching the images by using the image stitching method based on the overlapping region SIFT feature points.
Owner:HOHAI UNIV

Method for tracking gestures and actions of human face

The invention discloses a method for tracking gestures and actions of a human face, which comprises steps as follows: a step S1 includes that frame-by-frame images are extracted from a video streaming, human face detection is carried out for a first frame of image of an input video or when tracking is failed, and a human face surrounding frame is obtained, a step S2 includes that after convergent iteration of a previous frame of image, more remarkable feature points of textural features of a human face area of the previous frame of image match with corresponding feather points found in a current frame of image during normal tracking, and matching results of the feather points are obtained, a step S3 includes that the shape of an active appearance model is initialized according to the human face surrounding frame or the feature point matching results, and an initial value of the shape of a human face in the current frame of image is obtained, and a step S4 includes that the active appearance model is fit by a reversal synthesis algorithm, so that human face three-dimensional gestures and face action parameters are obtained. By the aid of the method, online tracking can be completed full-automatically in real time under the condition of common illumination.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Text detection and recognition method combining character level classification and character string level classification

The invention discloses a text detection and recognition method combining character level and character string level classification. According to the method, pixel sets possibly belonging to the same character are extracted from images to form alternate characters; alternate characters which do not meet the geometric feature statistic rule are filtered out; a character level classifier based on the character rotation and dimension invariance features is adopted for classifying the alternate characters, and the probability that the alternate characters are certain characters is determined; the characters are combined two by two, and initial character strings are formed; the similarity between every two character strings is calculated, two character strings with the highest similarity are combined into new character strings until no character strings capable of being combined exist; a character level classifier based on the character string structure feathers is adopted for classifying the character strings to determine the character strings with semanteme; and the probability that character strings to be recognized are certain characters is utilized for recognizing the character strings, and the semantic text is obtained. The text detection and recognition method has the advantages that the text detection and recognition process is used as a whole, the interaction of the text detection and the recognition is utilized for improving the result precision, and simplicity and high efficiency are realized.
Owner:HUAZHONG UNIV OF SCI & TECH

Strain capable of degrading feather keratin efficiently and screening method thereof

The invention relates to a strain capable of degrading feather keratin efficiently and a screening method thereof. According to result of the analysis and identification of the sequence of 16SrDNA and the result of the identification of a Biolog system, F4 is determined to be Bacillus licheniformis and is named Bacillus licheniformis F4. The Bacillus licheniformis F4 was collected in China Center for Type Culture Collection with a collection number of CGMCC No.4229 on October 22th, 2010. The screening method comprises: primarily screening, separating, enriching, and secondarily screening to obtain the strain capable of degrading feather keratin efficiently. In the invention, the strain capable of degrading feather keratin efficiently is obtained by two steps of screenings under strict conditions, wherein primary screening conditions are a carbon source and a nitrogen source, and secondary screening conditions are complete degradation of feathers and measurement of enzymatic activity of keratin. The strain is inoculated into a fermentation culture medium containing complete feathers to perform fermentation culture for 60 hours, all barbules of the feathers are removed, the left feather stems and a major part of removed pinnules are degraded, and the feather removing and feather keratin degrading effects of the strain are obvious.
Owner:TIANJIN UNIV OF SCI & TECH

Three-dimensional framework fast extraction method based on branch feathers

InactiveCN101763652AImprove accuracyImprove interface effects3D modellingVoxelData set
The invention provides a three-dimensional framework fast extraction method based on branch feathers, which comprises the following steps: firstly, automatically extracting root points and tip end points of a tree type voxel model; then, carrying out seed point distance conversion on the root points and the tip end points of the voxel model; automatically judging the branching feathers and optimizing cutting surfaces according to the growth strategy of regions from the root points or the tip end points; decomposing an object into meaningful components with reasonable delimitation between components; and finally, extracting voxel component frameworks and connecting the voxel component frameworks into a structural framework of the object. The framework fast extraction method based on branch feathers is fast and effectively, and the structural integral frameworks maintain topological structures of the original voxel model, and can not generate fracture and redundant complicated branches. The actual plant model construction is carried out on the basis of the framework, the actual scanning data can be processed, and the invention has the anti-noise capability and has high reconstruction accuracy. The test on a plurality of data sets proves that the invention is applicable to bodies with annular structures and can process surface voxel models and solid voxel models.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Polymorphic nitrogenous fertilizer and preparation method thereof

The invention discloses polymorphic nitrogenous fertilizer and a preparation method thereof. The polymorphic nitrogenous fertilizer comprises, by weight, 13-18 parts of urea, 63-65 parts of ammonium sulfate, 13-15 parts of ammonium chloride, 3-4 parts of animal hairs and feathers, 14-16 parts of modified attapulgite, 0.6-0.8 part of zinc sulphate monohydrate, 0.2-0.4 part of micronutrients fertilizer, 3-8 parts of ferrous sulfate, 0.3-0.5 part of nitrogen-fixing bacteria, 2-4 parts of modified nanocarbon, 1-3 parts of fructus cnidii, 5-7 parts of pomegranate tree roots and 9-11 parts of willow leaves. The feathers and the like are hydrolyzed by acid to form amino acid, secondary and trace elements are chelated, carboxymethyl cellulose increases a chelation structure of the secondary and trace elements so as to facilitate effective utilization of the secondary and trace elements, and invalid release of the secondary and trace elements is reduced. The polymorphic nitrogenous fertilizer is suitable for crops of wheat, rice, corn, soybean, rape and the like, can urge the wheat and the rice to turn green rapidly, be much in shooting and longing resistant and enhance chill-proof, drought-resistant and disease and insect resistant capacity, and enables cotton and linen crops to enhance tension and strength of fiber and improve output and quality remarkably.
Owner:安徽田间云生物科技有限公司

Miniature flapping wing air vehicle with wings capable of performing active deformation and with multiple freedom degrees

The invention relates to a miniature flapping wing air vehicle with wings capable of performing active deformation and with multiple freedom degrees, and belongs to miniature bionic air vehicles. A transmission device fixing frame, an electronic control module and an empennage are fixed on an airframe body, a direct-current motor is mounted on the transmission device fixing frame, a regulating steering fan is fixed on a vertical tail of the empennage, a flapping wing torsional pendulum mechanism is fixed on the transmission device fixing frame, the end part of the flapping wing torsional pendulum mechanism is fixedly connected with flapping wing flexible main wings, a group of pre-bent elastic wing feather frameworks are fixed to the rear edge ends of the flapping wing flexible main wings, and wing feather piezoelectric thin films of solar lamellas are stuck to the upper surfaces of the pre-bent elastic wing feather frameworks. The miniature flapping wing air vehicle disclosed by the invention has the advantages that torsion actions are realized through composite motions adopting an eccentric ball structure and a crank and rocker mechanism, the size of a torsion angle can be correspondingly changed along with different positions of the miniature flapping wing air vehicle in the flight process, the miniature flapping wing air vehicle has high smoothness, the flight is more stable, and the practicality is high.
Owner:JILIN UNIV

Fertilizer special for hybrid rice

The invention discloses fertilizer special for hybrid rice, which is prepared by barnyard manure, humic acid, bamboo charcoal, medical stone, biological bacterium, ammonium bicarbonate, calcium superphosphate, potassium chloride, bean pulp, cellulose glycolate, 35% sulfuric acid, lime, zinc sulfate, ferrous sulfate, sodium borate, nano iron ore milltailings powder, eucalypt saw dust, nano river sand powder and vegetable oil according to a certain weight proportion, wherein amino acid is generated by acid hydrolysis feather; secondary elements are chelated with microelements; a chelation structure is added to the cellulose glycolate, which is benefit to effectively use the secondary elements and the microelements; unavailable release of the secondary elements and the microelements is reduced; according to a formula of the invention, inorganic slow release component medical stone and soil improvement component bamboo charcoal are increased, thus, soil can be improved; the fertilizer is released effectively and is absorbed by crops completely; biological pesticide component can effectively reduce soil pest and disease damage according to the eucalypt saw dust and is safe and pollution-free and has no pollution to environment and the crops; according to the invention, the fertilizer is characterized by reasonable formula, more comprehensive and balanced nutrition, good use effect and can increase fertilizer utilization rate obviously; thus, output and quality of the hybrid rice are improved greatly so as to increase economic benefit of the hybrid rice.
Owner:MAANSHAN KEBANG ECO FERTILIZER

Password management system

The invention discloses a password management system. The password management system comprises a fingerprint acquisition module, a fingerprint verification module, a voice acquisition module, a voice verification and identification module, a storage module, a safety module, a communication module, a control module, a housing and a power source, wherein the fingerprint verification module and the voice verification and identification module respectively make comparisons between the fingerprint feathers and the voice feathers of users and fingerprint templates and voice templates which are stored in advance so as to verify user identities, and match and identify voice contents; the storage module is used for storing the account password information of the users, the fingerprint templates, the voice templates and a voice bank; the safety module is used for encrypting or decrypting the account password information of the users stored by the storage module; and the control module controls the safety module to decrypt and output the account password information of the users when verification of the user identities succeed. The fingerprint and voice verification identification technology and the encryption and decryption technology are adopted so that the safety and security of the account password information of the users and electronic devices are improved.
Owner:SHENZHEN ARATEK BIOMETRICS TECH CO LTD

Method for breeding blue-lower-leg spotted-brown-feather laying hens with high egg yields

The invention discloses a method for breeding blue-lower-leg spotted-brown-feather laying hens with high egg yields. The method comprises the following steps of: artificially inseminating and mating a large quantity of Huainan spotted-brown cocks serving as male parents and Loman laying hens serving as female parents, collecting hatching eggs and hatching an F1 generation; identifying cocks and hens according to the colors of feathers and lower legs, eliminating white-feather yellow-lower-leg chicken which are cocks, reserving spotted-brown-feather blue-lower-leg chicken which are hens for serving as breeding hens, and performing back crossing by taking Huainan spotted-brown cocks as male parents to produce an F2 spotted-brown-feather generation; crossly mating and fixing the F2 generation and performing family breeding to produce an F3 generation; and performing gradual pure breeding on the F3 generation and later generations and obtaining the blue-lower-leg spotted-brown-feather laying hens with high egg yields according to egg yield, protein, lower leg color, feather color and bodily form, wherein the feathers are spotted-brown feathers; and the bodily form refers to delicate and pretty bodily form, blue lower leg and blue beak. According to the method, an appropriate high-egg-yield gene is introduced into a local chicken breed, and the proteins and macroscopic features of the local chicken breed are kept simultaneously.
Owner:ANHUI AGRICULTURAL UNIVERSITY
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