66results about How to "Shape matching" patented technology

A bone plate for fixation of proximal humerus fractures comprises an elongated shaft portion having a first width and a head portion connected to the shaft portion having a second width greater than the first width. The head portion and the shaft portion define a common longitudinal axis. At least one first screw hole may be located in the head portion, and at least one second screw hole may be located in the shaft portion. At least one of the first and second holes is configured to engage a head of a bone screw to form an angularly stable connection with the bone screw.

A signal detector detects biological signal associated with a driver using electrode devices and a pulse wave sensor built into a steering wheel. A pulse wave sensor is built into a spoke part of the steering wheel and electrode devices are built into a ring part joined with the left and right spoke parts. The electrode devices and the pulse wave sensor are built into the surface of the steering wheel through insertion into recesses in the steering wheel. The left and right electrode devices and the pulse wave sensor contact thumb bases of the palms of the driver.

To overcome the difficulties inherent in conventional proton therapy systems, new techniques are described herein for synchronizing the application of proton radiation with the periodic movement of a target area. In an embodiment, a method is provided that combines multiple rescans of a spot scanning proton beam while monitoring the periodic motion of the target area, and aligning the applications of the proton beam with parameters of the periodic motion. For example, the direction(s) and frequency of the periodic motion may be monitored, and the timing, dose rate, and/or scanning direction and spot sequence of the beam can be adjusted to align with phases in the periodic motion.

The invention relates to a roof antenna (1) for mounting on a roof (2) of a vehicle, said roof antenna (1) having a base plate (7) and an antenna cover (3) that can be connected to the base plate (7). A printed circuit board (4) with antenna elements and at least one plug connection (5) is arranged under the antenna cover (3). The base plate (7) has detent hooks (11) for pre-attaching on the roof (2) and fixing means for a final assembly, said fixing means being designed as a central dome (6) with a screw thread and a star handle (12) that interacts with the dome (6).

The rectangle cold crucible system fit to casting continually and directional solidification comprises mould cavity 1-1 of crucible body 1 with proportion of width, length and height as 1:2~6:10~20 that belongs to fillet transition of two near surfaces and four square platform of big end down; opening splits with number about 6~18 run through outer surface 1-2 to mould cavity 1-1 on crucible body 1. This invention has no pollution to material, prepares heterotype alloy blank of high quality, overcomes the limit to rectangular intersection blank and fits to requirement of metallurgical and aerospace industry.

The invention discloses a ceramic ball valve, which consists of a shell, a valve rod, a ceramic ball, a left ceramic valve seat, a right ceramic valve seat, a ceramic middle body, a ceramic flange inner lining, a flange inner lining metal ring and a positioning metal ring, wherein the outer side face of the left ceramic valve seat is in close contact with the inner side face of the shell; the outer side face of the right ceramic valve seat is in close contact with the inner side face of the ceramic middle body; the other end of the ceramic middle body is in close contact with the interior of the left ceramic valve seat; a disc spring pressing ring is arranged between the right vertical surface of the right ceramic valve seat and the ceramic flange inner lining; and a disc spring is arranged between the disc spring pressing ring and the right vertical surface of the right ceramic valve seat. The ceramic ball valve has the characteristics of automatically adjusting a gap of the ceramic ball and the ceramic valve seat, along with good sealing effect on a valve rod part, long service life and good sealing effect.

The invention belongs to the technical field of preparation of all-inorganic perovskite solar cell devices, and particularly relates to a double-electron-transport-layer inorganic perovskite solar cell and a preparation method thereof, and application of a double-electron-transport-layer inorganic perovskite solar cell. The double-electron-transport layer (SnO2-PEIE) is obtained by spin coating ofa cathode layer by adopting a solution processing method and annealing in the atmosphere. By adding the PEIE layer, the energy level difference between the SnO2 electron transport layer and the perovskite layer can be reduced, better energy level matching is achieved, the electron extraction capability is enhanced, the electron-hole coincidence in the perovskite light absorption layer is reduced,the photoelectric conversion efficiency of the CsPbIBr2 solar cell is improved, and therefore, the all-inorganic perovskite solar cell device with a high photovoltaic performance is obtained.

The invention discloses a pair of magnetic therapy shoes and production technology thereof. The magnetic therapy shoes comprise uppers, insoles and soles, wherein each sole comprises an outsole and a midsole; each upper comprises a five-layer structure, the middle layer is high foaming EVA which is provided with waterproof cloth on the upper and lower surfaces, a leather surface is adhered to the surface of the waterproof cloth on the upper surface, and a lining is adhered to the surface of the waterproof cloth on the lower surface; magnetic sheets are adhered to each midsole; a layer of waterproof cloth is paved on each of the upper and lower surfaces of each midsole. The invention also discloses the production technology of the magnetic therapy shoes. The production technology comprises the steps of: 1, preparing the uppers; 2, preparing the magnet sheets; 3, preparing the soles; 4, assembling, specifically inducing fixing each sole on a machine rack, sizing the periphery of each upper uniformly, and sticking the periphery of each upper with the periphery of the corresponding sole by size, and thereby the magnetic therapy shoes is produced.

The invention relates to a liquid crystal glass sheet alignment laminating machine. The laminating machine comprises a work table, an alignment platform, a bracket, two groups of cameras, two groups of display screens, and a negative pressure generation device; the work table is horizontally arranged, the alignment platform is horizontally arranged on the work table, the alignment platform is hollow and multiple adsorptive holes for communicating the internal are uniformly arranged at an upper end; the negative pressure generation device is communicated with the internal of the alignment platform through a pipeline; the bracket is arranged on the worktable, and located at one side of the alignment platform; two groups of cameras and two groups of displays screens are in one-to-one corresponding arrangement, and respectively arranged on the bracket; the cameras are electrically connected with the corresponding display screen; one liquid crystal glass sheet is flattened on the alignmentplatform, and is adsorbed on the alignment platform after the negative pressure generation device is started; the other liquid crystal glass sheet is flattened on one of the liquid crystal glass sheet. The laminating machine disclosed by the invention has the advantages of being simple and reasonable in structure design, fast and convenient for alignment operation, high in production efficiency and low in use cost.

The invention relates to a window blind, which comprises a frame body, wherein blades and rotating shafts are arranged in the frame body; each blade is arranged on each rotating shaft; the end part ofone side, far away from a room, of each blade is provided with a first groove and a second groove; each lateral edge of the frame body is provided with a clamp block in the height direction of the frame body; when each blade rotates, the corresponding clamp block can be clamped into the first groove and the second groove; a metal sheet made of ferro magnetic materials is arranged in each of the first groove and the second groove; and each clamp block is made of magnets. The window blind has the following beneficial effects that when each blade needs to be cleaned, the blade rotates, so that the one side of the blade faces to the room; at the moment, the clamp block is clamped in the first groove; the clamp block adsorbs the metal sheet; further, the position of each blade is fixed, so that a user can conveniently clean the blades; after one side of each blade is cleaned, the blade is turned; the clamp block enters the second groove; and further, the other side of the blade faces the room, so that the user can conveniently and cleanly clean the blades.

The invention discloses a geometric modeling method for soybean seeds, which comprises the following steps: 1, selecting a plurality of soybean seeds of a variety to be modeled, respectively detectingthe characteristic size of each soybean seed, and respectively calculating the spherical rate phi i of each soybean seed to obtain the average spherical rate of the variety to be modeled; 2, equallydividing the spherical rate range interval of the soybean seeds into a first spherical rate change interval, a second spherical rate change interval and a third spherical rate change interval of whichthe spherical rates are decreased; 3, determining interval range to which average spherical rate belongs. The spherical rate [phi]I of the to-be-modeled grain is calculated by detecting the feature size of the soybean grain, and the filling model is determined according to the range interval where the spherical rate is located. On the premise that the filling precision is guaranteed, the number of filling balls is small, and the simulation calculation efficiency can be improved.

The invention provides a light source device and an optical system, and relates to the technical field of optics. The light source device comprises at least two light source assemblies, an exciting light path assembly, an excited light path assembly and a wavelength conversion assembly; at least two beams of exciting light emitted by the at least two light source assemblies respectively pass through different paths in the exciting light path assembly and reach the wavelength conversion assembly to form at least two non-coincident exciting light spots, and the at least two non-coincident exciting light spots excite the wavelength conversion assembly to generate at least two beams of excited light; and the at least two beams of excited light respectively pass through different paths in the excited light path assembly and are combined to form output light. The light source device relieves the technical problem of light source brightness loss in the prior art.

The invention discloses a shield advancing and hinging system, comprising a plurality of double-acting hydraulic cylinders, a plurality of single-acting hydraulic cylinders. The double-acting hydraulic cylinders and the single-acting hydraulic cylinders are evenly distributed in a middle shield and are mutually parallel, wherein a carrier plate is fixed to a push rod head at each of same ends of the double-acting hydraulic cylinders and single-acting hydraulic cylinders are. The carrier plates may form a complete work plane. Push rods at the other ends of the double-acting hydraulic cylinders are hinged to a rear shield. Cylinder blocks of the single-acting hydraulic cylinders are fixed to the middle shield. By using the system, adjusting efficiency of a shield tunneling machine is greatly improved.

The invention discloses a multi-point positioning device which comprises a base, a worktable and clamping claws, wherein the worktable is used for placing workpieces and is installed on the base. The device further comprises a machine frame installed on the base, the machine frame is arranged on the two sides of the worktable, the clamping claws comprises the first clamping claw and the second clamping claw which are hinged to the machine frame, the first clamping claw is located above the second clamping claw and is provided with an installation hole, an adjusting bolt is arranged in the installation hole, the lower end of the adjusting bolt can abut against the second clamping claw, the end, close to the workpieces, of the first clamping claw is provided with a chuck through a hinge bolt, the screw rod section of the hinge bolt comprises a threaded section and a smooth section, and a compressed spring is located between the second clamping claw and the base. The curve surface workpieces are clamped through the chuck of the first clamping claw and a chuck of the second clamping claw, the first clamping claw and the second clamping claw are in linkage, the clamping claws can perform multi-point clamping on the workpieces through the adjusting bolt and the chucks, and when the workpieces of the same type are clamped, people do not need to drive the clamping claws respectively to clamp and loosen the workpeices.

The invention belongs to the technical field of biomedical materials, and particularly relates to a 3D polylactic acid stent for bone tissue engineering and a preparation method thereof. The preparation method mainly comprises the following two steps of (1) manufacturing a polylactic acid stent through 3D printing; and (2) modifying and coarsening the surface of the stent and introducing gelatin and mucic acid to the surface of the stent. The 3D polylactic acid stent for bone tissue engineering not only has good biocompatibility and mechanical strength, but also can resist bacteria and inflammation and enhance adhesion and proliferation of cells; and in addition, the 3D polylactic acid stent also shows better characteristics with regards to bone induction, protein adsorption, degradation, biomineralization, drug release, cell friendliness and the like, and has a potential application prospect in the biomedical fields of tissue repair and the like.