258results about How to "Rapid contraction" patented technology

The present invention relates to a microsurgical device and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a dual-blade device for cutting the trabecular meshwork (TM) in the eye. The device tip provides entry into the Schlemm's canal via its size (i.e., for example, 0.3-0.2 mm width) and configuration where the blade tip curves up providing a ramp-like action for cutting the TM. The dimensions and configuration of the blade is such that an entire strip of TM is removed without leaving TM leaflets behind and without causing collateral damage to adjacent tissues.

A separator for non-aqueous rechargeable lithium batteries and a non-aqueous rechargeable lithium battery including the separator are provided. The separator includes a separator body and a composite including an organic compound and an inorganic compound supporting the separator body, where the organic compound has a higher melting point than that of the material composing the separator body, and the inorganic compound includes an element selected from the group consisting of 1A, 2A, 3A, 4A, 3B, and 5B elements from the periodic table, and combinations thereof, and at least one moiety selected from the group consisting of oxides, hydroxides, carbonates, phosphates, sulfates, nitrates, alkoxides, and combinations thereof.

The invention belongs to the technical field of short term power load forecasting, and discloses a power load forecasting method based on improved exponential smoothing and a gray model. The method includes the following steps: inputting original power load real-time data, and conducting a single exponential smoothing on the original power load real-time data, weakening the randomness of the original power load real-time data, such that the original power load real-time data approaches exponential development trend; predicting a smoothed sequence by using a gray forecasting model which optimizes background value; conducting inverse exponential smoothing on the forecasting result and returning the result to original power load data and a forecasting value at a next forecasting moment; determining whether the result reaches the requirements of knitting fitting errors, and outputting a forecasting result. According to the invention, the method expands the application range of the gray forecasting model, shortens search intervals, has higher forecasting reliability as high as 97%, can the meet requirements for maintaining the average error of short term power load forecasting at approximately 3% so as to address the problem of short term power load forecasting in future development of intelligent power grids.

A tool for binding and securing the binding of a load, said binding including a tube having left and right hand threads at opposed ends and sides and threaded shafts mated to the threads whereby turning of the tube relative to the shafts produces common insertion or extension of the shafts relative to the tube. A gear secured to the tube and a pivotal housing with handle surrounding the gear. A pawl carried by the housing and moveable into and out of engagement with the gear in either rotative direction whereby handle movement either contracts or extends the shafts simultaneously from the tube. A centered position of the pawl and a detent in said pawl engaged by a spring biased pinion that retains the pawl as desired out of engagement with the gear for free turning of the tube. The handle may be pivoted to a parallel position with the tube for convenient storage and safety, and a lock may be applied to lock the pawl in a position for contracting the shafts to prevent inadvertent release from the load binding condition.

The invention belongs to the technical field of high polymer materials, and relates to a sensible hydrogel, in particular to a hydrogel with pH sensibility and temperature sensibility and a preparation method thereof. The preparation method comprises the following steps: synthesizing hydroxy propyl cellulose and acrylic acid or acryloyl chloride into acrylic acid cellulose ester and copolymerizing the prepared acrylic acid cellulose ester and acrylic acid monomer to form the hydrogel. The hydrogel comprises hydroxy propyl cellulose chain segment with pH sensibility and temperature sensibility and acrylic acid chain segment with pH sensibility, and meanwhile, the hydrogel has pH sensibility, temperature sensibility and degradability and flexible responsiveness to the pH, can rapidly generate volume expansion or contraction, and has favorable mechanical property, good intellectuality and easy and feasible synthetic method, and the temperature sensibility is influenced by the pH value of the solution.

A separator for non-aqueous rechargeable lithium batteries and a non-aqueous rechargeable lithium battery including the separator are provided. The separator includes a separator body and a composite including an organic compound and an inorganic compound supporting the separator body, where the organic compound has a higher melting point than that of the material composing the separator body, and the inorganic compound includes an element selected from the group consisting of 1A, 2A, 3A, 4A, 3B, and 5B elements from the periodic table, and combinations thereof, and at least one moiety selected from the group consisting of oxides, hydroxides, carbonates, phosphates, sulfates, nitrates, alkoxides, and combinations thereof.

Balloon catheter covers are elastic fabric structures of interconnected yarns, the structure having a high degree of stretch and recovery in the circumferential direction with little change in dimension in the longitudinal direction during multiple pressurization cycles over full range of inflation and deflation of the balloon catheter. The covers have longitudinal yarns positioned at about zero degrees to the balloon axis and reversibly-stretchable, circumferential yarns positioned at a high angle O to the axis. A method for making the balloon catheter covers allowing nearly orthogonal placement of circumferential and longitudinal yarns involves triaxial braiding a minimum number of elastomeric braid yarns with multiple axial yarns to provide maximum convergence angle (approaching 90 degrees).

The invention discloses an improved inner-pushing type clamping device for a numerical control tube bending machine and belongs to the field of numerical control tube bending machines. The improved inner-pushing type clamping device solves the problems that an oil cylinder of an existing clamping device for a numerical control tube bending machine is poor in rotation sealing in the autorotation process and is likely to leak oil, and the service life is short. The improved inner-pushing type clamping device comprises a flexible chuck, an oil cylinder and a component, wherein the flexible chuck and the oil cylinder are connected through the component. The component for connecting the flexible chuck and the oil cylinder comprises a chuck pushing bush and a rotating rod. The oil cylinder comprises a cylinder body and a piston rod arranged in the cylinder body, and the chuck pushing bush is arranged at the stretching-out end of the piston rod, is fixed relative to the piston rod in the axial direction and can relatively rotate around the axis. The rotating rod is arranged in the piston rod, and is connected with the chuck pushing bush in the connecting mode that the rotating rod and the chuck pushing bush can rotate synchronous and move relatively in the axial direction. The flexible chuck is arranged at one end of the rotating rod. By means of the improved inner-pushing type clamping device, the problem of oil leakage caused by poor rotation sealing of the oil cylinder can be solved, so that the working stability of the clamping device is improved, and the service life is prolonged.

A manual pump dispenser includes a plunger head reciprocable between pressure and return strokes, and a pump body having an inlet valve for inletting of liquid product during each of the return strokes. A discharge valve assembly is fitted to a spout for permitting selective outletting of liquid product through the spout during each of the pressure strokes. The spout includes a bore having a predetermined diameter, with a unitary valve disposed substantially within the bore. The unitary valve is made of a material for permitting predetermined axial, or axial and radial expansion thereof under pressure from liquid product during each of the pressure strokes for thereby allowing liquid product to be discharged through a slitted opening in the unitary valve, and enabling rapid contraction thereof against a valve seat to prevent liquid product from being discharged through the slitted opening.

The invention relates to a speaker system which comprises a speaker and a power amplifier, wherein the power amplifier changes received audio electrical signals to amplified voltage signals by power amplification and drives the speaker to generate sound; the speaker comprises a thermal sound-generating element and at least two electrodes which are arranged at intervals and are electrically connected with the thermal sound-generating element, and the at least two electrodes input the amplified voltage signals to the thermal sound-generating element. The speaker system is applicable to the electroacoustic transformation field, has simple structure, can operate in a nonmagnetic environment, and has wider sound-generating frequency range and higher sound-generating intensity.

The invention belongs to the technical field of hydraulic equipment, and specifically discloses a two-way quick hydraulic cylinder. The two-way quick hydraulic cylinder comprises a cylinder barrel, apiston and a piston rod, wherein a sleeve is arranged at the outer side of the cylinder barrel; one end of the cylinder barrel is connected with a pushing rod; the other end of the cylinder barrel isconnected with a sealing disc; the sealing disc is in sliding and sealing connection with the sleeve; a plurality of oil conducting holes are formed in the sealing disc; one end of the sleeve is connected with a bottom disc; a plurality of first elastic pieces are connected on the bottom disc of the sealing disc; a central hole is formed in the shaft center of the bottom disc; the piston rod is fixedly connected with the bottom disc through the central hole; one end, connected with the pushing rod, of the cylinder barrel is in sliding and sealing connection with a fixed ring; the piston rod isin sliding and sealing connection with the central hole of the bottom disc; an oil outlet hole is formed in the cylinder barrel; and a through oil inlet hole is formed in the piston rod in the axialdirection. The two-way quick hydraulic cylinder is mainly used on hydraulic equipment, and solves the problem that telescopic length is inaccurate as a result of high telescopic speed at the last telescopic stage of the hydraulic cylinder.

The invention relates to a sound generating device, which comprises a sound generating element and a signal input device used for outputting signals to the sound generating element, wherein the sound generating element comprises a carbon nanotube structure which is used for receiving the signals outputted by the signal input device and emitting corresponding sound waves. The sound generating device can be used in devices capable of generating sound such as earphones, sound boxes, radios and the like.

The invention relates to the field of environmental control of a sunlight greenhouse, in particular to a multi-stage internal heat insulation shading system for a greenhouse and the greenhouse containing the system. The internal heat insulation shading system comprises multi-stage internal heat-insulation shading screens, a screen pressing line and a screen supporting line, a plurality of pulling screen mechanisms, a driving shaft and a motor for driving the rotation of the driving shaft; each pulling screen mechanism comprises a driving steel cable and a reversing pulley, wherein one ends of the driving steel cables are wound on the driving shaft, and the other ends of the driving steel cables are wound on the reversing pulleys; one sides of the inner heat insulation screens are fixed, and the other ends of the inner heat insulation screens, as retracting and releasing ends, are respectively connected with the driving steel cables. The internal thermal insulation shading system not only has the advantages of simple structure, saving production cost, but also can flexibly regulate and control the indoor temperature and light according to the different needs of temperature and light by crops in different growing seasons and different time. Compared with traditional internal insulation and shading systems, the system provided by the invention has a greater application and promotion value.

The invention discloses a fluorinated polyether siloxane and a preparation method of same. The fluorinated polyether siloxane is represented as the formula (a1): PFPE-CONHCR1(CH2OCONHCH2CH2OCOCHR2CH2N(CH2CH2CH2Si(OR)3)2)2, or the formula (a2): {[PFPE-CONHCH2CH2]N[CONHCH2CH2OCOCHR2'CH2N(CH2CH2CH2Si(OR')3)2]CH2}2, wherein R1, R2 and R2' are respectively and independently H or CH3; and R and R' are respectively and independently C1-C4 alkyl groups; the PFPE- is a monovalent polyfluoropolyether group. The fluorinated polyether siloxane has high adhesion force on a base material and is good in scratch resistance. The preparation method employs easy-to-obtained raw materials and is easy to control.

The present invention relates to a microsurgical device and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a dual-blade device for cutting the trabecular meshwork (TM) in the eye. The device tip provides entry into the Schlemm's canal via its size (i.e., for example, 0.3-0.2 mm width) and configuration where the blade tip curves up providing a ramp-like action for cutting the TM. The dimensions and configuration of the blade is such that an entire strip of TM is removed without leaving TM leaflets behind and without causing collateral damage to adjacent tissues.

A drug carrier with thermal sensitivity, a manufacturing method thereof, and a use thereof are disclosed. The drug carrier comprises a nano-magnetic particle, a drug, a composite polymer, and a dense silica shell. The nano-magnetic particle and the drug are encapsulated in the composite polymer which is formed by self-assembly a water-soluble polymer (such as poly vinyl alcohol) and a thermosensitive copolymer (such as Pluronic F68 or Pluronic F127). The stability and drug release of the drug carrier a can be adjusted by combining PVA and thermosensitive copolymer with a different ratio. When an external magnetic field was applied, the cores exhibit significant size shrinkage and the diameter of the drug carrier decreases more than 10 folds due to the change of temperature, which causes burst-like drug release because of shell destruction and physical collapse of the drug carrier.

The invention relates to a magic ball conversion balance mechanism for an underwater vehicle. The magic ball conversion balance mechanism comprises four magic ball mechanisms, a gas storage bag, four gas pipes and elastic gasbags wrapped on magic balls; when a driving device drives a feed screw nut to drive a nut moving block to move towards the direction far away from a feed screw moving block, the magic ball mechanisms are closed, and the magic balls contract; when the driving device drives the feed screw nut so that the nut moving block moves towards the direction of the feed screw moving block, the magic ball mechanisms are unfolded, and the magic balls are expanded. When the lead screw nut moves at maximum relative displacement of the nut moving block and the lead screw moving block, the magic balls completely contract; when the relative displacement is minimum, the magic balls are completely expanded. Through expansion and contraction of the four magic balls, the volume sizes of the magic balls are changed, and thus local buoyancy force of underwater vehicle system is changed, and the restoring moment of buoyancy force is generated so as to help the underwater vehicle to restore a balance posture.

The invention relates to the field of ceramic sanitary wares, and in particular, discloses a ceramic raw material rough crushing device. The ceramic raw material rough crushing device comprises a shell, first springs, second springs, a polishing plate, a grinding head and electromagnets; an annular groove for mounting the polishing plate is formed in the inner wall of the lower end of the shell; the radian of the polishing plate is the same with the radian of the inner wall of the shell; multiple first springs are arranged between the polishing plate and the inner wall of the annular groove; one ends of the first springs are welded with the inner wall of the annular groove, and the other ends of the first springs are welded with one side of the polishing plate; multiple grinding teeth, opposite to the side surfaces of the grinding head, are arranged on the other side of the polishing plate; multiple mounting grooves are formed in the side surfaces of the grinding head; the second springs and the electromagnets capable of attracting the polishing plate are arranged in the mounting grooves; one ends of the second springs are welded with the inner walls of the mounting grooves; and the other ends of the second springs are welded with the electromagnets. The ceramic raw material rough crushing device can clean powder raw materials attached on the grinding teeth.

A betatron includes a betatron magnet with a first guide magnet having a first pole face and a second guide magnet having a second pole face. Both the first and the second guide magnet have a centrally disposed aperture and the first pole face is separated from the second pole face by a guide magnet gap. A core is disposed within the centrally disposed apertures in an abutting relationship with both guide magnets. The core has at least one core gap. A drive coil is wound around both guide magnet pole faces. An orbit control coil has a contraction coil portion wound around the core gap and a bias control portion wound around the guide magnet pole faces. The contraction coil portion and the bias control portion are connected but in opposite polarity. Magnet fluxes in the core and guide magnets return through peripheral portions of the betatron magnet.

The invention provides a method of growing a high-quality gallium nitride film on a silicon substrate. The method comprises the following steps: (1), performing oxide removal operation on a Si substrate; (2), depositing AlN buffer layers including a low-temperature AlN buffer layer and a high-temperature AlN buffer layer on the Si substrate; (3), depositing a AlGaN-1 buffer layer on the high-temperature AlN buffer layer; (4), depositing a AlGaN-2 buffer layer on the AlGaN-1 buffer layer; and (5), growing a GaN epitaxial layer on the AlGaN-2 buffer layer. According to the invention, on the basis of the AlGaN / AlN epitaxial structure, the compressive stress is introduced in advance to enable the epitaxial wafer to protrude; during the cooling process after GaN growth completion, the GaN filmshrinks faster than the Si substrate and the GaN-Si epitaxial wafer changes from the convex shape to a non-warped shape. According to the invention, with the two AlGaN buffer layers, the high-qualitycrack-free GaN film epitaxial growth is realized.

The invention relates to a high speed boat, and belongs to the technical field of shipping. A boat body of the high speed boat is provided with a fore peak, a passenger compartment and an engine room from head to tail. The dead rise angle of the fore peak is 38-42 degrees. The cross section of the passenger compartment is in a folded angle form, and the outline of the cross section of the passenger compartment is formed by sequentially connecting two lateral sides of two broadsides of the boat body, a bottom side, a first folded side and a second folded side, the bottom edge, the first folded side and the second folded side are located at the bottom of the boat body and arranged sequentially from bottom to top, the bottom side and the second folded side are horizontally arranged at the bottom of the boat body, the bottom side is arranged in the center of the bottom of the boat body, and the second folded side and the lateral sides are adjacent and arranged at the sides of the bottom of the boat body. The included angle between the first folded side and the bottom side and the included angle between the first folded side and the second folded side are both 150-160 degrees. The included angles between the second folded side and the lateral sides are 100-110 degrees. The high speed boat has the advantage of being high in speed.

The invention relates to conductive silver paste for a touch screen using a transfer process and a preparation method thereof. The method comprises steps of weighing 10-15 parts by weight of polymer resin and 3-20 parts by weight of an organic solvent, heating the polymer resin and the organic solvent to 80 degrees centigrade and keeping the temperature until the resin is completely dissolved, cooling the product below 40 degrees centigrade and then filtering and purifying the product on a 300-400 mesh screen cloth to obtain an organic carrier; weighing 60 to 75 parts by weight of metal silverpowder, fully mixing the metal silver powder, the organic carrier, 0.1-1 parts by weight of antifoaming agent, 0.1-1 parts by weight of wetting agent, 0.1-1 parts by weight of anti-orange peel agent,0-2 parts by weight of thixotropic agent, and 0-1 parts by weight of hardening agent in a mixer, then dispersing the mixture at a high speed by a high-speed disperser to obtain uniform paste; grinding the paste on a three-roll grinder, and controlling, by the fine adjustment of the roller, the fineness of the silver paste to be less than 5 [mu]m and the viscosity of the silver paste to be 30 to 45 Pa.S so as to obtain the conductive silver paste for a touch screen using a transfer process. Compared with the prior art, the conductive silver paste has the advantages of low resistance, good corrosion resistance, good oxidation resistance and the like.

The invention discloses a production method of an elastic puffed silk quilt, relating to the technical field of home textile preparation. The method comprises cocoon selecting, cocoon cooking, degumming, pupae removing, ring sleeving, thread insertion and wire drawing, and is characterized by also comprising the steps of (A) firstly soaking cocoons into purified water before cooking the cocoons, wherein the water temperature is 50-70 DEG C and the soaking time is 3-5 minutes, putting the cocoons and the purified water into a vacuum container after soaking is completed, adding an alkaline swelling agent of which the pH is 9-10 for cooking, wherein the cooking temperature is 90-100 DEG C and the cooking time is 5-10 minutes; and (B) soaking natural silk into the purified water after wire drawing is completed, wherein the water temperature is 70-80 DEG C and the soaking time is 3-5 minutes, soaking the natural silk into the purified water containing an acid swelling agent, wherein the water temperature is 20-30 DEG C and the soaking time is 2-4 minutes, and finally drying and arranging the natural silk. Compared with the prior art, the production method has the advantage that the problem that the elasticity of an existing silk quilt is easily reduced can be solved.

An anti-collision support with a corrugated face belongs to the technical field of coal mine roadway supporting. Compared with the U-shaped steel support in the prior art, a corrugated face structure is additionally arranged on the middle section of an arc-shaped beam of the support, due to the corrugated face structure, the whole or part of the support can contract rapidly when encountering rock burst, the avoidance of surrounding rock is realized by the contraction of the support, and further the avoidance and energy consumption of the whole support are realized; according to the anti-collision support provided by the invention, the traditional mode of connecting two adjacent arc-shaped beams by a clamp cable is abandoned, a W-shaped elastic strip buckle is adopted to be a limiting member and realize composure control, and when rock burst is encountered, connecting components between the beams can dislocate mutually along with the two adjacent beams and follow the beams to move, so that the failure of connection at the connecting part of the two adjacent arc-shaped beams is avoided, meanwhile the contraction of the whole support is facilitated, and the stability of connection is guaranteed.