81results about How to "Avoid repositioning" patented technology

The invention discloses a privacy protecting method for a social network based on undirected graph modification. The method comprises the following steps: (1) establishing an undirected graph of the social network; (2) digging the maximum frequent subgraph; (3) establishing a node mapping relation; (4) iteratively expanding the subgraph and improving the mapping table; and (6) forming an anonymity isomorphic graph by adding mapping lines and virtual nodes to the undirected graph. According to the method, the virtual nodes are added, so that each node has other nodes symmetrical thereto, so that re-positioning of user identity is avoided, and personal privacy safety of the user is effectively protected. In addition, the local structure of the social network is finely modified, social network graph data can be externally and safely issued, so that the method is suitable for researching characteristic analysis and statistics of the local structure of the social network, and promotes data digging technology in research and application in the field of social network.

A solar array (50) for a spacecraft (10), comprising a solar concentrator that is provided with photovoltaic cells and reflective areas configured for reflecting solar radiation towards the photovoltaic cells, wherein the reflective areas and the photovoltaic cells are provided on opposite surfaces of concentrator reflector sheet members (56) that are repositionable from a retracted state wherein the concentrator reflector sheet members are in a substantially flat arrangement, to a extended state wherein the concentrator reflector sheet members are raised to allow the reflective areas to reflect solar radiation towards the exposed photovoltaic cells.

Alternatively or in addition, the solar array may comprise a support panel, which may be at least partially flexible for retaining the support panel in a bent panel shape when the solar array is in the stowed state fixed at a position near a body of the spacecraft.

An ultrasonometer for bone assessment in infants includes a focusing acoustic wave transducer, an acoustic wave detector, and an elongated chamber filled with an acoustically-coupling fluid. The chamber is equipped with an acoustically-transparent flexible membrane facing the extremity of the infant. Supporting means such as a gliding rod is adapted to retain at least one of the transducer or the detector inside the chamber facing the subject. Supporting means is further adapted to move the transducer or detector along the chamber to perform the bone scanning without repositioning of the probe. A focused ultrasound transducer is adapted to remotely generate an acoustic wave in the bone by acoustic radiation force.

The invention discloses a vehicle-mounted road fence cleaning device for municipal use. A water storage tank is arranged on a sprinkler vehicle body and a storage tank is arranged on one side of the water storage tank. A lifting device is arranged in the contain box, and the lifting device comprises a lifting frame, a lifting cylinder, a sprocket wheel III, a chain and a sliding block; a cleaningdevice is arranged on one side of the lifting device, and the cleaning device comprises a fixed brush roller, an adjusting brush roller, a transmission box and a transmission device, wherein the transmission box is provided with a transmission device; a high-pressure water pipe is arranged on one side of the fixed brush roller; the other side of the guard rail is provided with an adjusting brush roller symmetrical to the fixed brush roller, and the structure and size of the adjusting brush roller are consistent with those of the fixed brush roller. The upper part of the transmission box of theadjusting brush roller is provided with an obstacle overtaking device. When the invention meets obstacles such as traffic indication signs, the adjusting brush roller is folded up by using a flippingdevice and a retracting device, and the adjusting brush roller is reset by using the flipping device and the retracting device after the flipping device and the retracting device pass over the obstacles, thereby avoiding the repositioning of the cleaning device and improving the scrubbing efficiency.

The invention provides a hollow screw internal fixation guide pin positioner for femoral neck fracture, comprising a fixing lever for supporting and positioning the positioner on a femur; a three-point positioning rack including a rack body, three positioning levers and a connection lever; a first pivoting section pivoted on the fixing lever; a second pivoting section pivoted on the first pivoting section; a third pivoting section pivoted on the second pivoting section and pivoted on the connection lever of the fixing rack. According to the technical scheme above, the fracture positioner can adjust positioning position and angle direction, can overcome defects of being difficult to fix and unable to be observed under flouroscopy of the conventional fixing device, also can conveniently and quickly position femoral neck fracture accurately, and once successful positioning can be obtained. By driving the screw guide pin into the femoral neck through a center hole of the positioning lever, repeated positioning is avoided, shortened surgery time, reduced partial hemorrhage, reduced sclerotin quality reduction, and increased fixing strength for the femoral neck are obtained.

A diverting tool includes a ramp repositionable from a first position to a second position, a biasing member in operable communication with the ramp biasing the ramp toward the second position, and a tubular in operable communication with the ramp and the biasing member. The tubular prevents repositioning of the ramp when longitudinally overlapping with the ramp and allows repositioning of the ramp when not longitudinally overlapping with the ramp.

A driving assistance system for reversing a mining haulage vehicle, particularly for reversing a haul truck into a defined target position in a loading or dumping area, wherein the driving assistance system is configured that the target position is determined based on a logged loading tool position of the earthmoving machine, wherein steering instructions are provided to a light indicator when the transmission of the haulage vehicle is shifted to reverse.

The installation structure of machine box of rolling drum washing machine includes one box with opened front side and one casing fixed to front of the box to constitute the door of the washing machine. There are two or more corresponding connecting holes in each of the box and the casing, and connecting part. The installation structure features that there are at least one fixed board in the lower front part of the box and corresponding fixing slot in the lower part of the casing. The present invention makes it easy to install the casing in front of the box.

The invention provides an outboard on-orbit operated ground test method of spacecrafts. The ground test method comprises the following steps of installing a test article to a servo mechanism, installing gloves of an outboard space suit, and closing the door of a vacuum tank; adjusting the test article to fit the operating position of the gloves of the outboard space suit, regulating the air pressure in the vacuum tank to a preset pressure value, and completing an outboard test operation by a user wearing the gloves of the outboard space suit; returning to the original state after the test operation. The ground test method achieves verification of the outboard on-orbit operated ground test of spacecrafts, and solves the problem that outboard on-orbit operated tests need verifying during long-term on-orbit flights of the spacecrafts.

The invention belongs to the technical field of modern optical measurement and manufacture and particularly relates to a real-time grinding and polishing method based on a dynamic interferometer. The real-time grinding and polishing method comprises the specific steps: (1) according to the placement position coordinate of a workpiece, the equation of a curved surface to be measured and the sizes of corresponding hole diameters measured by the dynamic interferometer at different measuring distances, software is utilized for analyzing the number, the sizes, the positions and the moving paths needing to be measured by the dynamic interferometer; (2) measurement and processing of sub hole diameters are carried out on the curved surface to be measured by a polishing component or the interferometer according to the set measuring path, the measured surface shape data are used for determining the residence time in the measured sub hole diameters and the setting of the moving trail of a grinding head in real time; (3) after washing and blow-drying the surface shape in the range of the measured hole diameters, the workpiece is polished/ground by an industrial robot. The real-time grinding and polishing method has the advantages that the cost of a used system is low, the universality and the practicability are good, dynamic online measurement and processing of multiple surface shapes can be realized and the polishing accuracy and the conformity of the polished surface shapes are high.

The invention discloses a two-step blow forming method and a two-step blow molding device for an amorphous alloy special-shaped tube, and belongs to the field of the plastic forming of amorphous alloys. The method comprises the following steps of: heating a preformed variable-thickness amorphous alloy plate blank to a supercooling liquid phase area, introducing preheating pressure gas, and performing blow forming until the plate blank is adhered to a die to complete the performing of an amorphous alloy tube blank; and cooling the tube blank quickly, heating to the supercooling liquid phase area to perform secondary blow forming, and after cooling, opening the die to complete the forming of the amorphous alloy special-shaped tube. In the method, the forming capacity of amorphous alloy parts with complex shapes is improved by the two-step preblow forming of the variable-thickness amorphous alloy plate blank and the amorphous alloy tube blank, and the method and the device also can be used for the blow forming of containers and shell and cover parts which are made of amorphous alloy.

The invention belongs to the technical field of writing equipment, in particular to an auxiliary writing method convenient to control. The auxiliary writing method comprises the steps of locating a writing head, and adjusting the writing position; when the writing head is located, firstly, locating the writing head with a first character lattice on the first line, and then, rotating test paper tolocate a tail character lattice on the first line with the writing head, so that locating of all character lattices is completed; and when the writing position is adjusted, conducting stepping movement of character lattice distances in the horizontal direction, and conducting stepping movement of line distances in the vertical direction, so that automatic locating of the writing position is achieved in the writing process. By means of the auxiliary writing method, auxiliary Chinese writing can be achieved in the test process conveniently.

The invention discloses a bamboo chip clamping device for drilling. The bamboo chip clamping device for drilling comprises a cushion plate; a support base capable of sliding is arranged on the cushionplate by a mountain-shaped rail; multiple first clamping modules and second clamping modules are distributed on the support base at intervals; the first clamping modules comprise sleeves fixed on thetwo sides of the support base; clamping plates are connected into the sleeves by rotating shafts; torsion springs, cooperating with the clamping plates, are arranged at the middle parts of the rotating shafts; limiting holes are formed in the support base on the outer sides of the clamping plates; one ends of the clamping plates extend to the outer side of the support base by the limiting holes,and inclined grooves are formed in the other ends of the clamping plates; the second clamping modules comprise rotating arms; the inner sides of the rotating arms are connected with the support base by stand columns; collision blocks capable of rotating are connected to the outer sides of the rotating arms; flat wire springs are arranged on the outer sides of the stand columns above the rotating arms; and the two ends of the flat wire springs are connected with the stand columns and the rotating arms. The bamboo chip clamping device for drilling has the characteristics of high positioning andmounting efficiency and high clamping stability.

The invention relates to the technical field of machining of large rib plates of crane main beams, in particular to a rib plate positioning and clamping tool for robot welding and a positioning method. The rib plate positioning and clamping tool comprises a bottom plate, a position changing machine installed on the bottom plate, a frame installed at the output end of the position changing machine, a displacement platform and a splicing assembly formed by correspondingly splicing a first workpiece, a second workpiece, a third workpiece and a fourth workpiece, wherein the third workpiece and the fourth workpiece are arranged between the first workpiece and the second workpiece at intervals. According to the rib plate positioning and clamping tool for robot welding and the positioning method, after a workpiece needing to be positioned and clamped is placed on the tool, splicing and clamping can be automatically achieved, the workpiece is pressed to be prevented from falling off from the tool, after clamping, a welding robot can conveniently weld a splicing assembly, the welding efficiency is improved, and meanwhile, the splicing assembly can be driven to rotate, and therefore the welding robot can weld the two faces of the rib plate conveniently.