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161results about How to "Improve binding ability" patented technology

Feature line fused laser point cloud and analog image registration method

The invention provides a feature line fused laser point cloud and analog image registration method, and aims to solve the problems that a point cloud distance intensity image or point feature-based image and point cloud registration method in the prior art has many defects of manual point selection errors, point cloud data interpolation errors, need of many observation values and the like, and theprecision is very limited. The invention provides a laser point cloud and analog image registration method based on two-dimensional and three-dimensional fusion characteristic lines. The method comprises the steps of: establishing a direct transformation model between the image feature line and the point cloud feature line. The requirement on the initial value of the exterior orientation elementof the image is not harsh, the method has high robustness to noise, realizes automatic matching of two-dimensional and three-dimensional fusion features, improves the degree of automation, achieves higher real-time performance, has the advantages of no model error, no need of exterior orientation element initial values, only need of a small number of registration elements and the like, is high incalculation speed, and meets the registration requirements of analog images and ground laser point cloud data.
Owner:高小翎

Synthesis and application of indole hemicyanine dye

The invention relates to synthesis and application of an indole hemicyanine dye, which belongs to the synthesis of a functional dye and the application of the functional dye as a fluorescent dye in the field of fine chemistry industry. Indole quaternary ammonium salts and the corresponding aldehyde are condensed to form compounds with the advantages of large molar extinction coefficient, good light stability, easy synthesis and the like. The molecules have pH probe property, solid-state fluorescent property and binding property with biomacromolecules according to different substituents and anions. Being used as a pH probe, the compound can adjust the pKa of the probe according to the different substituents, and can be used for two-color living cell imaging; being used as a solid-state emission dye, the compound can adjust the solid-state emission wavelength according to different substituents and anions; being used as a biological molecule probe, the compound has good very response to the biological molecule, and living cell membrane permeability ability, can be used for cell staining, can prevent the interference of biomass autofluorescence because of longer absorption and emission wavelengths, and can also reduce the damage of exciting light to cells or biological tissues.
Owner:DALIAN UNIV OF TECH

Composite shear wall with concrete-filled steel tube frames and double steel plates with concealed bracings and construction method thereof

A composite shear wall with concrete-filled steel tube frames and double steel plates with concealed bracings and a construction method thereof relate to the field of construction. According to the invention, the composite shear wall is formed by combining reinforced concrete frames, a double steel plate shear wall and steel plates with concealed bracings. The reinforced concrete frames are formed by pouring concrete into steel tubes; then, the double steel plates are placed, the double steel plates are welded to the reinforced concrete frames, and the steel plates are perforated and are connected through studs; oblique crossing concealed bracings are placed between the double steel plates, and the oblique angle of the concealed bracings is between 45 degrees and 60 degrees; tie bars are threaded through the interspace between the concealed bracings; a reinforcing mesh composed of transverse steel bars in horizontal arrangement and longitudinal steel bars in vertical arrangement is arranged between the concealed bracings and the steel plates; and concrete is poured between the double steel plates. The composite shear wall has the advantages that the bearing capability is enhanced, the bearing capacity and the rigidity attenuate slowly, the ductility and the energy dissipation of the shear wall are enhanced due to multi-defenses, and the earthquake resistant capability is more excellent. The composite shear wall also has the advantage of convenience in steel structure construction, and can be used in high-rise or large complex multi-storey buildings.
Owner:BEIJING UNIV OF TECH

Negative oxygen ion photocatalyst decomposition liquid for formaldehyde removal and preparation method thereof

The invention discloses a negative oxygen ion photocatalyst decomposition liquid for formaldehyde removal and a preparation method thereof. The liquid is prepared from 14 parts of a formaldehyde trapping agent, 3-5 parts of a nano photocatalyst, 3-5 parts of nano silver ions, 4-6 parts of negative ion powder, 6-10 parts of cellulose, 3-5 parts of ethanol, 0.3-0.7 part of essence and 75.3-80.5 parts of deionized water. The negative oxygen ion photocatalyst decomposition liquid for formaldehyde removal and the preparation method thereof have an excellent catalytic degradation function, can release negative oxygen ions for a long time and can thoroughly kill bacteria and microorganisms since the formaldehyde trapping agent, high-activity nano Ti02 and Ag+ with a high-efficiency sterilizationfunction are added. Harmful gas such as formaldehyde, benzene, VOC and the like brought by the bacteria, the microorganisms and decoration can be thoroughly caught and decomposed, spatial structures of organic molecules are changed and convert into tasteless and harmless molecules, negative oxygen ions are released, sterilization and disinfection are carried out, and therefore indoor air is thoroughly and effectively purified.
Owner:秦皇岛威曼斯环保工程有限公司

All-solid LMA (large mode area) photonic band gap optical fiber

The invention discloses an all-solid LMA photonic band gap optical fiber. The all-solid LMA photonic band gap optical fiber comprises fiber core and cladding, wherein the fiber core comprises base materials (1) and low-reflective-index medium columns (2) which are distributed in a regular-triangular grid; the cladding comprises the base materials (1) and high-reflective-index medium columns (3). The all-solid LMA photonic band gap optical fiber binds light through the high-reflective-index medium columns, thereby having relatively strong binding capacities and relatively low bending losses; the low-reflective-index medium columns distributed cyclically in the center of the optical fiber can enlarge the loss difference between fundamental modes and high-order modes to distinguish the fundamental modes from the high-order modes and to further enable the optical fiber to achieve single-mode transmission. Due to the fact that the low-reflective-index medium columns are of a multi-layer structure, the optical fiber can obtain a large mode area. Meanwhile, the all-solid LMA photonic band gap optical fiber is of an all-solid structure and accordingly avoids the difficulty in manufacturing and usage of micro-structure optical fibers with air holes, and can achieve LMA low-bending-loss single-mode transmission.
Owner:JIANGSU UNIV

Industrial polyester filament for high-strength ultra-low-elongation safety belt and production method of industrial polyester filament

The invention relates to an industrial polyester filament for a high-strength ultra-low-elongation safety belt and a production method of the industrial polyester filament. The production method comprises the following steps of: A) high-viscosity polyester chip preparation; B) high-viscosity polyester chip impurity removal; C) melt spinning; and D) drafting, heat setting and winding. The number of the industrial polyester filaments produced by adopting the method is 72-144F, the fineness is 1100-2222dtex, the breaking strength can reach more than 7.80cN/dtex, the fixed-load elongation can reach 4-6 percent under a condition of 11.1KN and the controllable oil content is lower than 0.30-0.60 percent. The industrial polyester filament for the high-strength ultra-low-elongation safety belt and the production method of the industrial polyester filament have the beneficial effects that the breaking strength of the safety belt which is provided by using the obtained industrial polyester filaments can reach 35KN and is much higher than the breaking strength being 28-33KN of the existing safety belt, the physical and mechanical performance is good and the industrial polyester filament is an optimum raw material for producing front-row safety belts; the weaving performance is good, the dyeing uniformity of the safety belt is good due to lower fiber oil content, the gloss is stable, and chromatic aberration and stains do not exist; the waste polyester fibers can be recycled, the energy is saved, the environment is protected and the operating cost is reduced; and the operation is simple to conduct, the process flow is short, the automation level is high and the development space is very great.
Owner:ORIENTAL IND SUZHOU

Tunable waveguide grating based on silicon waveguide-graphene

The invention discloses a tunable waveguide grating based on silicon waveguide-graphene, and belongs to the technical field of optoelectronic devices. The tunable waveguide grating aims at relieving the problems that an existing grating is narrow in tunable wavelength range and low in response speed, and the grating structure is inconvenient to integrate. The waveguide grating of the same structure has different selectivities on light waves under different electric field conditions, and the reflecting wavelength of the grafting is changed. The tunable waveguide grating comprises a substrate, a ridge-shaped silicon waveguide is arranged on the substrate and comprises a ridge area lower half waveguide body and a ridge area upper half waveguide body, the ridge area lower half waveguide body is covered with a wrapping layer, the ridge area lower half waveguide body is sequentially provided with a first isolating dielectric layer, a first graphene layer, a third isolating dielectric layer, a second graphene layer and a fifth isolating dielectric layer from bottom to top, and a ridge area upper half rectangular waveguide body is arranged on the fifth isolating dielectric layer. The first graphene layer and the second graphene layer are both of an interdigital electrode structure, and interdigitals of the interdigital electrode structures are periodically arranged at equal intervals.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Circular steel pipe concrete member constrained by steel pipe and provided with interlayer and machining method thereof

PendingCN106906951AImprove binding abilityPrevent or delay local bucklingStrutsPillarsPipeSeismic resistance
The invention discloses a circular steel pipe concrete member constrained by a steel pipe and provided with an interlayer and a machining method thereof. The novel circular steel pipe concrete member constrained by the steel pipe and provided with the interlayer is composed of the outer steel pipe, an interlayer material and a core steel pipe concrete member, and the outer steel pipe and the interlayer material only provide lateral constraint for the core steel pipe concrete; both of the outer steel pipe and the core steel pipe concrete member are circular; and the outer steel pipe is arranged along full length of the surface of the core steel pipe concrete member and not connected with the end of the core member and a beam column joint. According to the circular steel pipe concrete member constrained by the steel pipe and provided with the interlayer and the machining method thereof, co-working performance of the core member steel pipe and core concrete can be strengthened, the bearing capacity and ductility of the member can be improved, the failure mode of the member can be improved, and the seismic resistance, corrosion resistance and fire resistance of the member can be reinforced; and according to the circular steel pipe concrete member constrained by the steel pipe and provided with the interlayer and the machining method thereof, the principle is clear, mechanical performance is excellent and engineering cost is low.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

Method for simplifying vertex clustering of three-dimensional models with texture constraint

InactiveCN102509339AImprove binding abilityPreserve texture features3D-image renderingGeometric errorAlgorithm
The invention provides a method for simplifying a vertex clustering of three-dimensional models with texture constraint. The method comprises the steps of: expanding the vertexes from a geometric space to a fifth-dimensional space including texture coordinates in consideration of algorithm efficiency in the self-adaptive division processes of the vertexes; dividing the vertexes according to the positions of the vertexes in the geometric space and the texture space in the self-adaptive division processes of the vertexes; in error measurement, respectively computing geometric errors and texture errors, if the error value is more than a given threshold, splitting the current node; and in the self-adaptive division processes of the vertexes, in consideration of saving the storage resources and improving the algorithm efficiency, adopting the relatively important vertex in an original model as a clustering representative instead of computing the geometric position of a new vertex through iteration. The method for simplifying vertex clustering of three-dimensional models with texture constraint organically integrates texture error measurement and geometric simplification, realizes rapid simplification of a mass of complex three-dimensional models and supports efficient three-dimensional visualization of city virtual scenes.
Owner:WUHAN UNIV

Planar two-waveband surface plasmon waveguide based on composite cycle structure

ActiveCN103197374ARealizing dual-band curved waveguidesImprove binding abilityOptical waveguide light guideMicrowaveSurface plasmon
The invention discloses a planar two-waveband surface plasmon waveguide based on a composite cycle structure. The planar two-waveband surface plasmon waveguide comprises a composite cycle straight-metal grating structure and a composite cycle arc-metal grating structure, wherein the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure are printed on a flexible medium and are in tangent connection. A row of deep grooves A and a row of shallow grooves B are formed in a staggered mode in the same sides of the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure. One of the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure serves as an input end of the waveguide, the other one of the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure serves as an output end of the waveguide, and a metallic conducting wire is arranged on the front side of the input end, serves as a feed source, and is used for exciting two-waveband surface waves on the input end. According to the planar two-waveband surface plasmon waveguide based on the composite cycle structure, a plasma straight waveguide and a bent waveguide of an ultrathin flexible thin film based on the composite cycle structure are achieved at the first time in a microwave section. The planar two-waveband surface plasmon waveguide based on the composite cycle structure has the advantages of being simple in structure, convenient to manufacture, and capable of adapting being used in the microwave section.
Owner:SOUTHEAST UNIV

Bamboo charcoal viscose facial mask base cloth and high moisture retention and moisturizing facial mask

The invention relates to a bamboo charcoal viscose facial mask base cloth and a high moisture retention and moisturizing facial mask. The bamboo charcoal viscose facial mask base cloth is prepared with the following method: 1) adding nanometer bamboo charcoal powder and sodium alga acid into dispersion solution to be dispersed evenly in bamboo charcoal serous fluid; 2) adding the bamboo charcoal serous fluid into viscose spinning solution to be dispersed evenly, and filtering and deforming to obtain mixed spinning solution; 3) carrying out wet method spinning on the mixed spinning solution toobtain the bamboo charcoal viscose, and carrying out opening, mixing, carding and lapping to obtain a bamboo charcoal viscose felt; 4) dissolving chitosan in acetic acid aqueous solution, adding gelatin to be dissolved to obtain finishing liquor, and dipping the bamboo charcoal viscose felt into the finishing liquor to carry out impregnation modification to obtain a compound fiber felt; 5) carrying out spunlace reinforcement on the compound fiber felt. The bamboo charcoal viscose facial mask base cloth has high constraint ability on serum and good water retention and moisture liberation performance; after the facial mask serum is loaded through a liquid hanging step, the high moisture retention and moisturizing facial mask is obtained, situation that serum loss due to dripping and droppingcan be avoided, and waste is avoided.
Owner:魏科峰

T-shaped beam column connecting joint

ActiveCN105821961AIncrease the usable area and aesthetics of the roomImprove bearing capacity and energy dissipation capacityBuilding constructionsSteel tubeDuctility
The invention discloses a T-shaped beam column connecting joint. The T-shaped beam column connecting joint comprises a multi-cavity concrete filled steel tube combined column and side plates symmetrically arranged at the two side walls of the multi-cavity concrete filled steel tube combined column, inserting plates which penetrate through the side plate and are inserted into the multi-cavity concrete filled steel tube combined column are arranged on one side plate, and a reinforcing H-shaped steel combined beam is inserted into extending sections of the two side plates and the inserting plate to form the T-shaped beam column connecting joint. The joint serves as an edge restraint member of the whole concrete filled steel tube column and can improve bearing capacity, energy-dissipating capacity and ductility of the concrete filled steel tube column; on-site construction is convenient, the multi-cavity concrete filled steel tube combined column is not damaged, and materials and labor are saved. A steel tube has a strong restraint effect on concrete, the whole structure conforms to the design rule of matching strong columns with weak beams and matching strong joints with weak members, the joint has multiple anti-seismic fortifying lines, it is avoided that a whole system is damaged as part of members are damaged, and the joint has necessary strength, good deformability and good energy-dissipating capacity.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

High-transmittance polyester thin film and preparation method thereof

The invention belongs to the technical field of polyester thin films and in particular relates to a high-transmittance polyester thin film and a preparation method thereof. The high-transmittance polyester thin film comprises a core layer and a surface layer arranged at one side or two sides of the core layer, wherein the surface layer is prepared from the following components in percentage by mass: 93 to 97 percent of polyethylene terephthalate, 0.08 to 0.25 percent of inorganic particles and 2.75 to 6.92 percent of other auxiliary agents, wherein the inorganic particles are subjected to coating and modification treatment through a compatilizer. According to the high-transmittance polyester thin film provided by the invention, the inorganic particles subjected to the coating and modification treatment through the compatilizer are added into the surface layer, so that the binding capability of the inorganic particles and polyethylene terephthalate in the surface layer of the polyesterthin film is improved; a gap formed at the periphery of the inorganic particle in the biaxially-stretched and molded polyester thin film is reduced, so that the problem that the inorganic particles exist so that the light penetration rate is low is remarkably reduced; the binding force between the inorganic particles subjected to the coating and modification treatment through the compatilizer andpolyethylene terephthalate is relatively strong, and a series of appearance problems caused by the fact that the inorganic particles fall off are prevented.
Owner:金华市星火塑料制品有限公司

Conical pipe anchor bar connection structure for prefabricated assembly structure

The invention discloses a conical pipe anchor bar connection structure for a prefabricated assembly structure, and belongs to the field of prefabricated assembly engineering. The connection structurecomprises a conical pipe, a grouting guide pipe and a fixing circular ring. The conical pipe is of a pre-embedded structure, the conical pipe can achieve a restraint effect on steel bars and groutingmaterials in the conical pipe, and meanwhile the tension capacity of the conical pipe in concrete can be improved. Frame vertical ribs and tie bars in a prefabricated bearing table also achieve a restraint effect on cracking of the bearing table or foundation concrete caused during pulling of the conical pipe. In prefabricated components, a conical pipe group is connected with the surrounding frame vertical ribs and the tie bars, and therefore the anchor performance of the conical pipe group can be improved. The steel bar anchorage length needed by the conical pipe anchor bar connection structure is small, the conical pipe anchor bar connection structure can be used for connection between a reinforced concrete structure prefabricated assembly component and a foundation or the bearing table, and rapid building of the prefabricated assembly reinforced concrete is achieved.
Owner:BEIJING UNIV OF TECH

Broadband surface plasma logic input source

The invention relates to a broadband surface plasma logic input source which comprises a substrate layer and a metal layer. The substrate layer is made of a low-refractive-index material. The metal layer is formed above the substrate layer. A plurality of rectangular rings with four smooth corners and waveguides at two sides of the rectangular rings are etched on the metal layer through focused ion beam etching, wherein the rectangular rings with four corners can be arranged parallelly or vertically. The rectangular rings which are etched on the metal layer and four smooth corners and the waveguides at two sides of the rectangular ring form the broadband surface plasma logic input source. According to the broadband surface plasma logic input source, An optical field resonates at an interface between an air medium and the metal. Because the metal layer is provided with the rectangular ring structures with four smooth corners each and waveguides at two sides of the rectangular ring, resonance between a resonance electromagnetic wave and the annular structure occurs. An annular resonance chamber realizes relatively high inhibition for the optical field. Because the optical field with a specific wavelength is inhibited on the metal surface layer and is propagated circularly, the dimension of the device can be effectively reduced. Furthermore on condition of broadband, partial light is emitted out of ports along the waveguides at two sides of the rectangular rings, thereby realizing a logic gate.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Amphoteric low salt pickling and low chrome tanning auxiliary and preparation method thereof

The invention relates to an amphoteric low salt pickling and low chrome tanning auxiliary and a preparation method thereof and aims to solve the problem that in the traditional leather production and processing process, as a large amount of chromium ions and chloride ions is contained in chrome tanning waste liquid, severe pollution can be generated to the environment. The preparation method comprises the following steps: firstly adding sodium allysulfonate dissolved in water into a constant-pressure liquid dripping funnel, then adding diallyl dimethyl ammonium chloride, acrylic acid, ammonium persulfate, sodium bisulfite and water into a three-necked flask provided with a stirrer and a condensing device, completing dripping of the sodium allysulfonate within a certain time after temperature rise and performing constant-temperature reaction; cooling, then adjusting the pH and discharging to prepare the amphoteric low salt pickling and low chrome tanning auxiliary. When the amphoteric low salt pickling and low chrome tanning auxiliary prepared by the preparation method is applied to leather tanning, the content of Cr2O3 in the waste liquid and the contention of the chloride ions can be obviously reduced, the shrinkage temperature of wet blue leather meets the factory production requirements, and the leather quality is not affected.
Owner:SHAANXI UNIV OF SCI & TECH

Wheat protein disulfide isomerase produced by utilizing escherichia coli prokaryotic expression system, as well as method and application of wheat protein disulfide isomerase

The invention discloses wheat protein disulfide isomerase produced by utilizing an escherichia coli prokaryotic expression system, as well as a method and application of the wheat protein disulfide isomerase. According to the technical scheme, the method comprises the following steps: extracting wheat total RNA (ribonucleic acid) from wheat spires, and obtaining wPDI (wheat protein disulfide isomerase) gene through RT-PCR (reverse transcription-polymerase chain reaction); connecting a target gene to a carrier PET-30b (polyethylene glycol terephthalate-30b) to construct a recombinant plasmid; transferring the recombinant plasmid into a competent cell of escherichia coli BL21, performing inducible expression in an LB culture medium to culture the recombinant escherichia coli, and centrifugally collecting a bacterial cell; crushing the bacterial cell by using an ultrasonic method, centrifuging and collecting supernate; preparing wPDI through once Ni-sepharose affinity chromatography. The wPDI massive expression and simple purification process can be realized through the escherichia coli expression system; the prepared wPDI plays an excellent effect in improving the wheat processing quality in a flour processing quality experiment, and can be used in flour processing.
Owner:广州英赞生物科技有限公司
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