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136results about How to "Fix fixes" patented technology

Satellite positioning and static leveling-based layered settlement monitoring system and method

The invention discloses a satellite positioning and static leveling-based layered settlement monitoring system and method. The system comprises a base station, a monitoring station which is arranged in a settlement monitoring area and a monitoring center which communicates with the monitoring station, wherein the base station communicates with the monitoring station; the monitoring station comprises an observation pillar, a second Beidou satellite signal receiver mounted on the observation pillar, a data transmission unit, a plurality of layered settlement marks and a static level system; the static level system comprises a plurality of static level gauges; each layered settlement mark is provided with one static level gauge; one of the static level gauges is arranged on the observation pillar. The method comprises the following steps: I, setting of the monitoring system; II, data acquisition and transmission; III, data processing and analysis. According to the satellite positioning and static leveling-based layered settlement monitoring system and method, the calibration and correction problems of the instable working base points during the static leveling can be effectively solved, and the long-term, remote and real-time monitoring for the layered settlement deformation of the geologic bodies can be realized.
Owner:CHINA JK INST OF ENG INVESTIGATION & DESIGN

Directional sliding drilling monitoring while drilling control device and control method of directional sliding drilling monitoring while drilling control device

The invention discloses a directional sliding drilling monitoring while drilling control device and a control method of the directional sliding drilling monitoring while drilling control device. The directional sliding drilling monitoring while drilling control device comprises data collecting sensors, a programmable controller, a drill rod left and right rotation controller and a monitor, wherein the the sensors include a drill rod torque sensor, a drill rod rotating angle deflection sensor, a vertical pipe pressure sensor, a large hook hanging load sensor and a motor tool surface angle sensor, the programmable controller carries out calculation and analysis on data collected by the sensors, combines a direction drilling experience model with a logic reasoning method for obtaining control parameters and controls a top drive main shaft to rotate and act. The control method comprises the steps of rotating drilling, sliding drilling, tool surface orienting, supporting pressing sliding prevention drilling and sliding drilling tool surface deviation correcting. The control device and the control method provided by the invention have the beneficial effects that the fast and accurate tool surface orienting, correcting and controlling in the directional sliding drilling process are realized; the incapability of drilling pressure or drilling supporting pressure exertion onto a directional sliding drilling drill bit due to well hole friction resistance increase is reduced; the drilling speed and the well drilling efficiency of sliding drilling machinery are respectively and obviously accelerated and improved.
Owner:CNPC BOHAI DRILLING ENG

Method for manufacturing artificial soft tissue body carried with vascular net flow channel

ActiveCN104027847AMeet structural precision requirementsSolve the problem of growing space restrictionsProsthesisVascular channelVascular structure
The invention provides a method for manufacturing an artificial soft tissue body carried with a vascular net flow channel. The method comprises the following steps of: firstly designing a soft tissue scaffold model with a vascular structure, layering the soft tissue scaffold model one by one at equal distance, and manufacturing photomask plates of various layers; then uniformly mixing a cell and a collagen solution, and injecting a photocuring hydrogel and a photoinitiator to obtain a photocuring composite solution; injecting the photocuring composite solution to a work table, covering with the photomask plates, curing the photocuring composite solution by adopting a surface exposure technology, and then carrying out curing accumulation layer by layer to obtain a photocured hydrogel soft tissue scaffold with the vascular structure; planting vascular endothelial cells to the vascular structure of the photocured hydrogel soft tissue scaffold, wherein the vascular endothelial cells are attached to the surface of a vascular channel; carrying out static culture and dynamic culture in vitro to obtain the artificial soft tissue body carried with the vascular net flow channel. The method provided by the invention can solve the problems of survival of cells inside a large tissue engineering soft tissue scaffold, and soft tissue scaffold vessel network manufacturing and vascularization in the large injury repair of a soft tissue.
Owner:XI AN JIAOTONG UNIV

Dresser for deep hole internal thread

The invention provides a dresser for a deep hole internal thread and belongs to the technical field of hand tools. The dresser comprises a locating mandrel, a ferrule, a threaded cutter, a fixing seat, a fixing sleeve and a baffle, wherein the locating mandrel penetrates into an inner cavity of the fixing seat, and a tapered surface is arranged at the lower end of the locating mandrel; the ferrule is embedded into the inner cavity of the fixing seat; the threaded cutter comprises four groups of L-shaped blades, a cutting edge with a thread form consistent with that of the deep hole internal thread of a to-be-dressed aircraft part is arranged at the outer side end of the horizontal arm of each blade, a wedge-shaped arc surface is arranged on the vertical arm of the blade, the four groups of blades are evenly arranged around the locating mandrel, and the horizontal arms of the four groups of blades are assembled with the fixing seat; an operating handle is arranged at the upper end of the fixing seat, the fixing seat and the fixing sleeve are assembled in a threaded fit manner, the thread pitches of the fixing sleeve, the fixing seat and the deep hole internal thread of the to-be-dressed aircraft part are identical, and the fixing sleeve and the to-be-dressed aircraft part are assembled in a threaded fit manner. The dresser solves the problem about repair of the deep hole internal thread of the aircraft part and guarantees smooth assembly of threaded fit members in the maintenance process of the aircraft.
Owner:FACTORY 5721 OF PLA

Passivation material capable of repairing cadmium and copper-polluted acidic soil as well as preparation method and application of passivation material

The invention provides a passivation material capable of repairing cadmium and copper-polluted acidic soil as well as a preparation method and application of the passivation material. The pH value of the passivation material is 10 to 13; the passivation material is prepared from the following raw materials in percentage by mass: more than or equal to 60 percent and less than or equal to 85 percent of biomass power plant ash, more than or equal to 10 percent and less than or equal to 25 percent of lime, and more than or equal to 5 percent and less than or equal to 15 percent of phosphorus lime. The passivation material takes the green and cheap biomass power plant ash as the main raw material, the biomass power plant ash is mixed with the lime and the phosphorus lime, any binding agent or a colloid auxiliary material is not added, and spherical grains are prepared; the granulation rate of the raw materials is more than 95 percent and the material returning rate is low. Negative influences of the auxiliary materials including the binding agent and the like can be avoided, and a raw material washing phenomenon is avoided; the application amount of the passivation material is less and only occupies 0.2 percent to 0.6 percent of the mass of soil of a plough layer; a heavy metal passivation effect is remarkable and stable, and the growth of plants is accelerated, so that the aim of efficiently and lastingly repairing the heavy metal cadmium and copper-polluted acidic soil in situ at a low cost is realized, and economic benefits, ecological benefits and a repairing effect are integrated.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI

Device for reconstructing coracoclavicular ligament

InactiveCN105640599AFix fixesSolving the challenge of reconstructing the coracoclavicular ligamentSuture equipmentsInternal osteosythesisOperation modeCoracoid
The invention provides a device for reconstructing the coracoclavicular ligament. The device is composed of a bone fracture plate and high strength sutures, and the bone fracture plate is made of a titanium alloy material and provided with drill holes; the high strength sutures are made of a polyethylene terephthalate material; the sutures and the bone fracture plate are used in a matched mode; when the device is used, after the clavicle resets, the bone fracture plate is placed on the attachment segment of the clavicle coracoclavicular ligament, holes are drilled in two bones respectively, the high strength sutures sequentially penetrate through a hole channel in the bone fracture plate and holes drilled in the two bones to fix the clavicle onto a coracoids, then a flexible fixing rope is tightened till the clavicle and the coracoids recover to the normal distance, and finally knotting is conducted to conduct fixation. According to the device, in treatment of acromioclavicular dislocation, the problem of coracoclavicular ligament reconstruction is solved, and an internal fixator is removed without secondary surgery; the problem of ligament repair is solved, and pain of self-lifted ligament reconstruction is avoided; the device and an operation mode are minimally invasive, postoperative recovery is high in speed, pain of a patient is reduced, and the device is applicable to acromioclavicular dislocation caused by shoulder joint surgical treatment trauma and the like.
Owner:邱冰

Image processing method and device, electronic equipment and readable storage medium

ActiveCN110751605AThe image is clear and intuitiveEasy to observeImage enhancementImage analysisEndoscopic imageEngineering
The invention provides an image processing method. The image processing method comprises the following steps: acquiring a color endoscope image in a time sequence sampling video; extracting a boundaryregion image in the color endoscope image, and determining boundary points according to the boundary region image; using pixel point information in a preset area range of the boundary points and gradient information determined according to the boundary points to obtain restoration numerical values of the boundary points, wherein the pixel point information comprises contribution values and distance information, and the gradient information comprises x-direction gradient information and y-direction gradient information; and replacing the numerical values of the boundary points in the color endoscope image with all the repair numerical values so as to obtain a repaired image. According to the invention, the problem of color boundary image restoration caused by in-vivo instrument or visceramovement is solved, the image is more intuitive and clearer, and medical personnel can conveniently observe by using the restored image. The invention further provides an image processing device, electronic equipment and a computer readable storage medium which all have the above beneficial effects.
Owner:SONOSCAPE MEDICAL CORP

Manual correction device for cantilever steel beam and construction method thereof

The invention discloses a manual correction device for a cantilever steel beam and a construction method. The manual correction device comprises a supporting mechanism and a traction mechanism. The supporting mechanism comprises a supporting frame, a z-direction jack and a plug. The supporting frame is fixed with the plug through the z-direction jack, an x-direction jack and a y-direction jack areinstalled in the plug, x-direction idler wheels for supporting the cantilever end of the cantilever steel beam are rotatably installed on a bracket of the x-direction jack, and y-direction idler wheels for supporting the cantilever end of the cantilever steel beam are rotatably installed on a bracket of the y-direction jack. The traction mechanism comprises an x-direction traction rope and two y-direction traction ropes, and the three traction ropes are detachably connected with the outer end and the left and right sides of the cantilever steel beam through respective rope buckles of the three traction ropes. The key of the manual correction device is to use the two groups of idler wheels to alternately support and lubricate the cantilever end and use the traction ropes to pull for correction. According to the manual correction device and the construction method, the cantilever ends of the cantilever steel beams can be kept aligned in all directions of x, y, and z.
Owner:ZHEJIANG ERJIAN STEEL STRUCTURE

Method for automatically positioning and repairing clipping distortion waveforms of electronic stethoscope

The invention discloses a method for automatically positioning and repairing clipping distortion waveforms of an electronic stethoscope. The method includes the following steps that: an auscultation signal is read; a difference of the signal x is obtained, and a differential signal x<d> is obtained; through threshold comparison and endpoint pairing, K non-overlapping time intervals for clipping distortion is determined, the time intervals are sorted in time order, and a stack is formed by entering first and then exiting; if K=0, a clipping distortion area is avoided, repairing is no longer needed, if K>=1, a data time point set psi<K>interpolated on the stack is determined, time point set psi<K>and a corresponding value x(psi<K>) on x at each time point of the time point set are used, anda value in the Kth section of the clipping distortion area is fitted to replace an original clipping distortion value in the x through interpolation; the time interval at the top of the stack is removed; and an auscultation signal x without clipping distortion is output. According to the method for automatically positioning and repairing the clipping distortion waveforms of the electronic stethoscope, the clipping distortion area of stethoscope signals can be automatically detected and positioned, and signals of the clipping distortion area and a plurality of close clipping distortion areas can be automatically repaired.
Owner:SUZHOU MELODICARE MEDICAL TECH CO LTD

Durable cable body wound with spiral bar adhesive tapes and manufacturing method of cable body

The invention discloses a durable cable body wound with spiral bar adhesive tapes. A manufacturing method of the durable cable body comprises the following steps of: winding a steel wire bundle into a bundle by a wrapping tape, and carrying out hot extrusion on high-density polyethylene to form a high-density polyethylene sheath; fitting a layer of spiral bar adhesive tapes on the exterior of the high-density polyethylene sheath in a winding mode, wherein the spiral bar adhesive tapes comprise an overlapped single-layer spiral bar adhesive tape and a non-overlapped single-layer spiral bar adhesive tape, a plurality of corresponding convex-concave grooves are respectively formed in the upper end surface and the lower end surface of the overlapped single-layer spiral bar adhesive tape, and a parallel bar is formed on the edge of the non-overlapped single-layer spiral bar adhesive tape; and pasting or calendering a PVE (polyvinyl ether) fluorination membrane with a durable function on the overlapped single-layer spiral bar adhesive tape or the non-overlapped single-layer spiral bar adhesive tape so as to form an overlapped or non-overlapped composite spiral bar adhesive tape. According the invention, the polyethylene sheath is prevented from being directly exposed to the atmospheric environment, so that the service life of the cable body is improved, and the cable body also has a favorable wind-rain induced vibration prevention capability; the manufacturing method is simple and rapid; and the spiral bar adhesive tape is suitable for not only novel cable bodies, but also the maintenance of the existing bridge inhaul cables.
Owner:LIUZHOU OVM MASCH CO LTD +1
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