135results about How to "Prevent regression" patented technology

A device and a method of maintaining vascularization near an implant, especially a bioartificial hemofilter. By associating cells that excrete angiogenic factors with such an implant, vascularization to the tissue surrounding the implant can be maintained. In a bioartificial hemofilter, this facilitates filtrate transport to a collection fiber for drainage from the body. The cells can be genetically engineered, for example using an adenovirus vector encoding for vascular endothelial growth factor. Myoblasts and myotubes may be used in one embodiment of the present invention.

The invention relates to a centrifugal force drive based drawing device for equipment in a pipeline, which comprises a bracket, a centrifugal force generating mechanism and a motion locking mechanism, wherein the bracket is sleeved in a pipeline; the centrifugal force generating mechanism comprises a drive motor and more than one set of eccentric block rotating assembly; the motion locking mechanism comprises an adjusting motor and more than four groups of connecting rod assemblies which are fixed on a stand along the circumferential direction of the pipeline; both ends of each screw rod in the connecting rod assemblies are respectively sleeved on a fixed rocker seat and a screw rod fixed seat; a floating rocker seat is sleeved on the screw rod by thread fit; one end of a fixed rocker is articulated on the fixed rocker seat, and the other end of the fixed rocker is connected with one end of a floating rocker by a connecting rod; the other end of the floating rocker is articulated on the floating rocker seat; a wedge block is fixed on the connecting rod; when the screw rods in all the connecting rod assemblies rotate towards the same direction, the motion directions of the floating rocker seats in the adjacent connecting rod assemblies are opposite. The invention has the advantages of simple and compact structure, low cost, stable and reliable work, wide application range, and the like.

Viral replicon selected nucleic acid expression libraries are useful for analyzing multiple antigens associated with a parasite, pathogen or neoplasia or for preparing immunogenic compositions for generating immune responses specific for the parasite, pathogen or neoplasia. Alphavirus replicon particles representative of the nucleic acid expression library are preferred. The nucleic acid library can be a random library, or it can be prepared after a selection step, for example, by differential hybridization prior to cloning into the replicon vector.

The invention discloses a waterproof structure of a piezoelectric ultrasonic transducer, which comprises a cylindrical shell. One end of the shell is provided with a shell cap, and the other end of the shell is provided with an acoustic wedge; a piezoelectric wafer is arranged between the acoustic wedge and the shell cap. The waterproof structure is characterized in that: a first sealing device is arranged between the inner end face of the shell and the end face of the acoustic wedge; and a second sealing device is arranged between the inner surface of the shell and the peripheral wall of the acoustic wedge. The waterproof structure of the piezoelectric ultrasonic transducer has the advantages of realizing multiple seal in different directions, improving sealing performance, and achieving completely waterproof effect even under high water pressure.

Embodiments of the invention include determining whether an individual has autism spectrum disorder or is at risk for developing autism spectrum disorder or at risk for regression of or into autism spectrum disorder. Specific embodiments include the determination of indicative levels of carnitine or other metabolites in carnitine biosynthesis and may include assaying for mutations in TMLHE, including in exon 2, for example. In some cases one can assay for mutations in TMLHE in the absence of biochemical analysis of carnitine biosynthesis metabolites. An individual with deficiency in TMLHE and / or carnitine levels may be administered carnitine, acetylcarnitine, butyrobetaine, or a combination thereof, for example.

The invention discloses a chain belt nail gun. The chain belt nail gun comprises a nail conveying device, an actuating mechanism, a retaining device and a trigger, wherein the nail conveying device is used for chain belt type nailing; the retaining device is fixed on a gun barrel sleeve; a nail inlet and a connection belt outlet are formed in the gun barrel sleeve; the nail conveying device comprises a fixing seat and a nail pushing part; the fixing seat is fixedly connected with the gun barrel sleeve; the nail pushing part is elastically connected with the fixing seat, and is positioned below the nail inlet; a security pressing plate is movably connected with the nail pushing part; one end of the actuating mechanism is movably connected with a gun barrel, and the other end of the actuating mechanism is matched with the nail pushing part to control the security pressing plate; when the actuating mechanism moves toward the direction of a gun body, the actuating mechanism drives the nail pushing part to move downward, and enables the trigger to be in a percussion state; when the actuating mechanism moves toward the direction of the gun barrel, the fixing seat and the nail pushing part are matched to convey nails. The chain belt nail gun provided by the invention can solve the following technical problems that firstly, the gun barrel is blocked by nails; secondly, the weight of the nail gun is heavy; thirdly, plastic residues can be hung on nail caps after percussion.

The invention relates to an insulation puncturing wire clamp and a method for connecting a cable by employing the same. The insulation puncturing wire clamp comprises an upper shell and a lower shell, wherein upper puncturing cutter blades and an elastic cushion are arranged in the upper shell, the elastic cushion is matched with the shape of a lower side surface of the upper shell and is used for the upper puncturing wire clamps to conveniently pass through, lower puncturing wire clamps and an elastic cushion are arranged in the lower shell, the elastic cushion is matched with the shape of an upper side surface of the lower shell and is used for the lower puncturing wire clamps to conveniently pass through, elastic buckles are arranged at two outer sides, which are abutted in a matching way, of the upper shell and the lower shell in a matching way, a sliding block is fixedly arranged at an upper side edge where the upper puncturing cutter blades and the upper shell are connected, wedge-shaped extrusion blocks are arranged in the upper shell at an upper side of the sliding block in a matching way, can slide leftwards and rightwards and can be used for upwards and downwards extruding the puncturing cutter blades, extrusion surfaces are arranged in the upper shell at upper sides of the wedge-shaped extrusion blocks and are matched with wedge-shaped surfaces of the wedge-shaped extrusion blocks, the sliding block is pushed to drive the puncturing cutter blades to move downwards when the wedge-shaped extrusion blocks slides inwards from an outer side of the upper shell, and backward prevention mechanism are arranged at tail ends of the wedge-shaped extrusion blocks and tail ends of the corresponding extrusion surfaces of the upper shell.

The invention discloses a rice pudding and a preparation method thereof. 1000 parts of rice pudding raw materials comprise the following components in parts by weight: 20 to 200 parts of polished round-grained rice, 20 to 200 parts of sticky rice, 1 to 120 parts of white sugar, 1 to 6- parts of rice starch and 480 to 957 parts of milk. The rice pudding has the following advantages and effects: twokinds of rice such as the polished round-grained rice and the sticky rice, are compounded and cooked to achieve a retrogradation inhibiting effect; the polished round-grained rice and the sticky riceare subjected to soaking treatment and then are added into cooking materials, so that retrogradation of the polished round-grained rice and the sticky rice can be inhibited effectively; and homogeneous sterilization is conducted after burdening, the homogenous pressure is set to 100 to 300 MPa, components such as fat in the cooking materials are broken, and scraping plate type stirring is adoptedwhile the rice is cooked, so that rice granules are prevented from being locally heated and adhered to the bottom wall of a cooking container, high granule integrity is maintained, the rice granule chewing taste is achieved when the rice pudding is eaten, and the obtained rice pudding has low retrogradation rate of rice, high product stability and long shelf life.

The invention discloses a method for accurately predicting tunnel surrounding rock displacement. The method comprises the following steps of after a tunnel is excavated, timely collecting displacementdata such as surface subsidence, vault subsidence, peripheral convergence and the like, recording time, and drawing a time-displacement scatter diagram; according to an exponential model, a logarithmmodel and a hyperbolic model given by Technical Regulations for Monitoring and Measurement of Railway Tunnel (Q / CR 9218-2015), carrying out regression analysis on three displacement duration models at the same time; according to a probability theory and a mathematical statistics related theory, carrying out significance tests of regression models and regression coefficients on the three types ofmodels respectively; taking the model with the minimum residual sum of squares as the regression model after passing the significance test of the regression model and the regression coefficient. According to the method, the regression of one of the exponential model, the logarithmic model and the hyperbolic model can be avoided, the regression of insignificant models can be avoided, the model withthe optimal regression effect can be used as the regression model, and the optimal regression effect means that the regression value is closest to the measured value.

The invention discloses a high-voltage transformer, which comprises a compression ring, a core tube, a current transformer body and two sets of wire clamping components, wherein the compression ring is rotationally arranged on the outer circumference wall of the core tube; the compression ring comprises a ratchet ring of which the inner circumference wall is provided with a plurality of slope grooves; a plurality of wedge-shaped anti-drop teeth are arranged in the slope grooves; a plurality of radial guide holes are formed in the tube wall of the core tube; each wire clamping component comprises a plurality of press claw components which are evenly distributed along the circumferential direction of the core tube; each press claw component comprise a plurality of press claws and reset springs for providing reset elasticity to the press claws; each press claw comprises a press plate part and a radial slide column; wedge-shaped teeth are arranged on the radial slide columns; the press plate parts of the press claws are located in a tube cavity of the core tube; each radial slide column passes through one radial guide hole; each wedge-shaped tooth is propped against corresponding one wedge-shaped anti-drop tooth; the current transformer body comprises an annular base body; the ratchet ring synchronously drives the press plate parts in the two sets of wire clamping components to move towards the center of the core tube when rotating. The high-voltage transformer is relatively stable to install.

The invention discloses a Chinese date picking machine for separating impurities successively. The machine comprises a fruit containing box and an air suction pipe, wherein the air suction pipe comprises an outer PVC pipe, an inner PVC pipe, a lower corrugated hose and an upper corrugated hose, the two ends of the inner PVC pipe are connected with the upper corrugated hose and the lower corrugated hose respectively, the outer PVC pipe is fixedly arranged on the inner PVC pipe in a sleeving mode, a closed soil collecting box is formed by the outer PVC pipe and the inner PVC pipe, filtering holes are formed in the inner PVC pipe, and an opening and closing type outlet is formed in the outer PVC pipe; a guiding plate and a direction guiding plate are arranged in the fruit containing box, one end of the guiding plate is fixed to the position below the joint of the air suction pipe and the fruit containing box, the other end of the guiding plate inclines downwards and is arranged above a fruit containing basket, one end of the direction guiding plate is fixed to the position below the joint of the sedimentation chamber and the fruit containing basket, the other end of the direction guiding plate inclines downward and is arranged below the lower end of the guiding plate, and a gap for red dates to pass through is formed between the guiding plate and the direction guiding plate. Through the picking machine, soil and grass leaves can be separated successively when the red dates are picked, and it is guaranteed that the red dates can be separated from the impurities more thoroughly.