Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

95 results about "Normal shape" patented technology

Method for cultivating dwarf-type black leg pockmarked plume chicken strains

The present invention relates to an excellent-quality chicken maternal strain, in particular to a method for the strain breeding of the dark-shank spotty plumage chicken with dwarf gene, which belongs to the technical field of the dark-shank spotty plumage chicken with dwarf gene. The breeding procedures of the present invention are (1) selecting a cock of Chongren chicken and a hen having the dark-shank partridge in the grandparent hen group of the dwarf yellow-feather chicken as the breeding materials and selecting a normal-shaped cock having the dark-shank partridge character in the F1 generation after the hybridization of the cock and the hen; (2) Selecting the dark-shank partridge normal-shaped cock to be mated with the hen of the dark-shank partridge dwarf yellow-feather chicken and selecting the dark-shank partridge dwarf cock and the dark-shank partridge dwarf hen in the F2 generation; (3) cross-breeding and locking the selected dark-shank partridge dwarf cock and the dark-shank partridge dwarf hen so as to get the present invention after the breeding from generation to generation. Since the body of the maternal-strain chicken is short cultivated through the present invention, the chicken has the outstanding advantages of precocious puberty, high-yield of eggs and less feed consumption and cultivated space saving, which greatly reduces the production cost of the commodity generation chicken and improves the comprehensive benefit of the cultivation.
Owner:JIANGSU INST OF POULTRY SCI

Embedded sine-profile permanent motor rotor

The invention relates to an embedded sine-profile permanent motor rotor which solves the problem that permanent magnets in traditional motors in the prior art are generally attached to the outer sides of rotors and prone to shed in high-speed rotation of the rotors and the problem of vibration noise caused by instability in operation of the motors due to fluctuation in rotation of the rotors in normal shapes. A winding shaft on the surface of the rotor is provided with a plurality of arc protrusions in consecutive connection, the rotor is partitioned into a plurality of equal areas by the ligature of the rotor axis and the crosspoint of each two adjacent protrusions, two grooves in inverted splayed array are arranged in each area, and permanent magnets are inserted in the grooves. The embedded sine-profile permanent motor rotor has the advantages that the separation of the permanent magnets in high-speed rotation of the rotor is avoided, and reliability of the motor is improved while the service life of the motor is prolonged; salient pole rate is increased, larger salient pole torques can be generated, efficiency is improved, and the service life of the motor is prolonged; and the motor is more stable in operation, loss caused by harmonic waves is reduced, and vibration noise of the motor is improved to some extent.
Owner:HANGZHOU WAHAHA GROUP

Method for preparing carbon-coated aluminum lithium battery negative pole material with core-shell structure and cavity

InactiveCN103280564AImprove securityIncrease speed capacityCell electrodesLithium-ion batteryCarbon coated
The invention relates to a lithium ion battery technology and aims to provide a method for preparing a carbon-coated aluminum lithium battery negative pole material with a core-shell structure and a cavity. The method comprises the following steps of: dissolving a carbon source material into deionized water; adding spherical aluminum powder and magnetons, and then sealing a reaction kettle; performing reaction at the temperature of 250 DEG C, and filtering to obtain brown or black solid powder; performing centrifugal separation and washing, and then performing vacuum drying to obtain a carbon aluminum composite material precursor; carbonizing at constant temperature under the protection of a nitrogen atmosphere, cooling, and post-processing through acid or alkali; and performing vacuum drying to obtain a carbon-coated aluminum composite material with the cavity in a carbon shell. The carbon-coated aluminum composite material in the core-shell structure has the characteristics of normal shape and uniform grain size; and the performance of an electrode material can be stabilized, and a product is high in quality. The carbon shell is uniform in thickness and high in conductivity, so that the electrochemical kinetics performance of a negative electrode is improved, the polarization of the electrode is reduced, and the speed capacity, reliability and safety of a lithium battery are improved.
Owner:ZHEJIANG UNIV

Method for measuring and calculating area of mangrove plant kandelia candel leaf

InactiveCN102628685ACalculations are easy and accurateMeasurement devicesKandelia candelRegression analysis
The invention relates to a method for measuring and calculating an area of a mangrove plant kandelia candel leaf, which belongs to the technical field of coastal mangrove forest wetland ecosystem protection and primary productivity evaluation. The method comprises the steps of: firstly picking kandelia candel leaves with a given quantity, the same size and normal shapes as well as statistical significance, and measuring data of each leaf such as an area, a maximal length and a maximal width by utilizing a leaf area scanner; implementing the regression analysis through a nonlinear equation of Y=aX1b1X2ba, and determining the regression coefficients a, b1 and b2; obtaining an equation capable of measuring the area of the kandelia candel leaf: A=aLb1Wb2; and measuring the maximal length and the maximal width of a kandelia candel leaf on site, and respectively putting the measured maximal length and maximal width into the equation to obtain the area of the kandelia candel leaf to be measured and calculated. The invention provides a simple, easy and precise method for measuring and calculating the kandelia candel leaf, so that a more convenient technology and a method for supporting the evaluation on the primary productivity of the mangrove forest ecosystem are provided.
Owner:JIANGSU UNIV

High-efficiency seed labeling method for propagation of plant male sterile line

The invention discloses a high-efficiency seed labeling method which can be used for propagation of a plant male sterile line, and brings convenience for hybrid seed production. Furthermore, the invention provides a new method for high-efficiency propagation of the plant male sterile line by utilizing nucleotide sequences that controls plant male fertility and special grain shapes, e.g. size, length, width, thicknesst, etc.; and a transgene technology. According to the invention, the wild-type nucleotide sequence for controlling the male fertility and the nucleotide sequence for controlling the grain shapes are linked and transferred into conventional corns, and then a back cross into a homozygous recessive male sterile line is carried out; and the obtained transgene plant is hybridized with the homozygous recessive male sterile line to simultaneously obtain a lot of seeds of the sterile line and the maintainer line. Due to the effect of the nucleotide sequence for controlling the grain shapes, the seeds can be distinguished into the sterile line and the maintainer line through the grain shapes, wherein the seeds with normal shapes are the sterile line (without transgene sequences), and the seed with abnormal shapes (e.g. small grains) are the maintainer line.
Owner:北京中农大地科技发展有限公司

Method and system for non-contact comprehensive measurement of three-dimensional topography and slit size of large flat plate slit antenna

ActiveCN105519264BJudgment of workabilityJudgment characteristicsOptically investigating flaws/contaminationOptical elementsFull fieldThree dimensional shape
The invention relates to a non-contact method and system for comprehensively measuring the three-dimensional appearance and the size of the gap on the surface of a large flat-panel crack antenna. The precision rangefinder of the system measures the normal shape of the antenna, and coordinates with the coordinates of the two-dimensional moving guide rail to obtain an accurate three-dimensional shape map through computer processing. During the scanning process, the CCD completes the shooting of the partial image of the antenna. The computer system performs image stitching on the captured images, completes the calculation of the gap size, coordinates with the coordinate values ​​of the two-dimensional moving guide rail, and completes the measurement of the size of the radiation slot in the large flat-panel slot antenna and the measurement of their mutual positional relationship. On the basis of accurate size measurement, the defect area search is completed by comparing the design value. The invention can simultaneously measure the three-dimensional topography and flatness of the complex surface shape of the flat plate slit antenna, as well as surface features such as the geometric size of the radiation seam and the mutual positional relationship; it has the advantages of low cost, high measurement accuracy, non-contact measurement and good portability Features.
Owner:CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products