49 results about "Lower border" patented technology

A multichannel pipetting head comprises a plunger actuator comprising at least one groove with an upper border, and a lower border. A plurality of plunger-cylinder units, wherein each plunger-cylinder unit comprises a cylinder and a plunger comprising a plunger head. The plunger head comprises a projecting upper abutment region adjoining the upper border, a projecting lower abutment region adjoining the lower border and laterally offset relative to the projecting upper abutment region, a plurality of guides. Each of the cylinders is coupled to a neck and held on each of the plurality of guides. During lateral movement of the plurality of guides, the plunger head is configured to tilt in the groove and to be held with the upper abutment region abutting the upper border and with the lower abutment region abutting the lower border of the groove due to restoring forces that occur during tilting in the plunger-cylinder units.

The invention discloses a model test device for simulating a diffusion rule of single-fracture grouting slurry, a lower boundary pressure plate and an upper boundary pressure plate are sequentially mounted in a flat plate placement groove in a sliding fit manner, and the lower boundary pressure plate is attached to the bottom wall of the flat plate placement groove; the flat plate placement groove is connected with a fixed frame, the gap adjusting assembly is movably connected with the fixed frame, an elastic part is arranged between the gap adjusting assembly and the fixed frame, the gap adjusting assembly is pressed on the surface of the upper boundary pressing plate, and a crack simulation space is formed between the upper boundary pressing plate and the lower boundary pressing plate. According to the invention, the gap adjusting assembly is arranged, so that the gap between the upper boundary pressing plate and the lower boundary pressing plate can be adjusted, and simulation tests can be carried out aiming at fractures with different sizes; by arranging the adjusting bolt and the adjusting nut, the upper boundary pressing plate can push the adjusting bolt to slide on the mounting plate to a certain extent under the action of grouting pressure during a test, so that the condition that the crack can change is simulated.

The invention provides a scroll bar display method and device and a readable storage medium, the method is applied to an Android operating system, and the method comprises the steps that under the condition that a native scroll bar in a native container is located on the upper boundary or the lower boundary of a display interface in the native container, in response to a target sliding operation, the target scroll bar is displayed; hiding the native scroll bar, displaying a target scroll bar in a parent container nested with the native container, and fixing the target scroll bar at a position corresponding to the native scroll bar; the position of the native scroll bar is bound with the position of the sliding content on the display interface, the position of the target scroll bar is not bound with the position of the sliding content, and the target sliding operation is sliding operation with the sliding direction opposite to the direction of the upper boundary or the lower boundary of the display interface; obtaining a sliding distance of the target sliding operation; the size of the target scroll bar is adjusted according to the sliding distance, and the sliding distance is inversely proportional to the size of the target scroll bar. According to the method, the feeling of drag with resistance can be fed back to a user through the scroll bar.

The invention provides a pole piece burr detection method and system. The method comprises the following steps: acquiring a pole piece image and selecting an ROI; calculating row coordinates of an actual foil material center point of each column in the ROI column by column to extract a foil material center line in the ROI; based on the gray value of each region in the ROI, determining the pixel points of the coating region column by column, taking the maximum value of the row coordinates corresponding to the pixel points of any column of coating region as the lower boundary of the coating, and taking the minimum value as the upper boundary of the coating; and calculating the difference between the row coordinate of the foil center line of any column and the coating upper boundary of the current column and the difference between the row coordinate of the foil center line of any column and the coating lower boundary of the current column, and judging the burr type of the current column. According to the method disclosed by the invention, the foil center line extraction and the boundary determination of the coating area are realized at the same time according to the gray value distribution characteristics of the pole piece image, so that the difference value between the line coordinate of the foil center line and the boundary of the coating area is used as the judgment basis of the burr type, the calculation method is simple and rapid, noise interference is effectively resisted, and the method is suitable for popularization and application. The detection result is high in accuracy.

The application provides a target tracking method, system, storage medium and electronic equipment, and relates to the field of image processing.The method comprises the following steps: acquiring video stream data; detecting whether there is an occluded target in the video stream data; if yes, judging whether the occluded target can be effectively detected; if the occluded target is effectively detected, judging whether the upper boundary of the target detection frame of the occluded target is displaced; if the upper boundary is displaced, keeping tracking of the occluded target; if the upper boundary is not displaced and the lower boundary is displaced, performing a lock frame operation starting from the current frame to track the occluded target; and the lock frame operation is used to fix the size and position of the tracking frame.The application can avoid switching the tracking ID of the target in the tracking process, can inhibit multi-shot and improve missed shots, and effectively improves the accuracy of target tracking.

The invention relates to a splicing range adjusting method and system and a digital X-ray camera. Relates to the technical field of digital X-ray cameras. The splicing range adjusting method comprises the following steps: acquiring a second size, corresponding to a pixel point in a vertical direction, in a subject image obtained by shooting a subject by a camera mounted on a light bundling device; according to an upper boundary corresponding to a set splicing range of the subject image and a lower boundary opposite to the first boundary, determining a length corresponding to the set splicing range; and adjusting the starting height and the ending height corresponding to the set splicing range based on the camera height from the camera to the ground and the length corresponding to the set splicing range. According to the embodiment of the invention, the splicing range can be adjusted.

The invention discloses a spherical surface standing wave three-dimensional procession effect three-axis integrated miniature gyroscope spherical shell resonance structure, the structure comprises a spherical harmonic oscillator, a plurality of electrodes and a shell, and the electrodes are used for measuring the vibration mode of the spherical harmonic oscillator to realize the measurement of the angular velocity of three-axis rotation; a supporting column is arranged in the center of the spherical harmonic oscillator, an inner spherical shell is arranged on the outer layer of the spherical harmonic oscillator, the supporting column comprises a plurality of U-shaped supporting beams, an anchor area sphere and a base, the inner spherical shell is constructed to be in a thickness non-uniform distribution form, and the lower end of the inner spherical shell is provided with a hole structure for the supporting column to penetrate through. Wherein the lower boundary of the hole is overlapped with the upper boundary of the base. The electrodes are arranged on the outer side of the spherical harmonic oscillator, a gap between the outer wall of the spherical harmonic oscillator and the inner wall of each electrode is a capacitance gap, the electrodes are arranged around the equator of the spherical harmonic oscillator every 45 degrees, the electrodes are arranged at the 45-degree positions of an upper hemisphere and a lower hemisphere every 90 degrees, and the electrodes are embedded in the upper face of the shell. The three-axis angular velocity measuring device has the remarkable effects that the structure is simple, the space limitation of two-dimensional precession of a traditional hemispherical resonant gyroscope is broken through, and the three-axis angular velocity measurement is realized under a single structure by utilizing the space precession characteristic of spherical harmonic standing waves under the action of multi-degree-of-freedom inertia force.

Device for odor-tight sealing of a drain pipe (2) of a waterless urinal (1) with an upper inlet housing (4) and a lower outlet housing (9) adjoining it, wherein the inlet housing (4) includes a funnel-shaped collar (5) and a collecting chamber (6) adjoining it downwards, which communicates via a passage cross-section with an outlet chamber (12) of the outlet housing (9) located below it and to which a cover hood (14) is assigned, spaced from its upper edge, which is supported on the upper region of the inlet housing (4) by several support legs (16) projecting from its edge region, and wherein the outlet chamber (12) communicating with the collecting chamber (6) of the inlet housing (4) has a lower boundary in the form of at least one inclined surface (21) which slopes down towards an associated outlet opening (22) provided in a lateral chamber wall,which is associated with a sealing membrane (23) made of rubber-elastic material attached to the outside of the chamber wall, characterized in that spacers (26, 28) are provided for the top of the cover (14), by which the top of the cover (14) is distanced from the collar (5) of the inlet housing (4) in an inverted position of the cover (14).

To provide a cathode arc vapor deposition apparatus.SOLUTION: There is provided a device that comprises: a target which has a surface as an active surface for evaporation; a confinement part which confines an outer border of the target surface; an anode which has an electron reception surface, and encircles the target and confinement part at an axial distance before a target plane and the active surface; and a magnetic guide system which provides a magnetic field with the target surface parallel with at least an outer region of the target surface with lines of magnetic force inclined in parallel with or at an acute angle α to the target surface and is defined within a surface region, wherein the lines of magnetic force enter the target surface at α≤45°. The confinement part and anode are formed in a closed geometric shape and electrically insulated from each other and the target, and an inner border of the electron reception surface is defined with at least one of a radial direction having a radial distance from the middle of the target, an axial distance from the target surface to an upper border of the confinement part, and an axial distance from the target surface to a lower border of the electron reception surface.SELECTED DRAWING: Figure 1

Device for parking a bicycle (20) with a front and a rear wheel (21, 23), wherein the wheels (21, 23) each have a hub (22, 24), comprising a housing (10) with an interior space (11) for at least partially accommodating either the front or rear wheel (21, 23), wherein the interior space (11) is dimensioned such that it can accommodate the respective hub (22, 24) of the accommodated wheel (21, 23), with a standing surface (13) for setting up the device on a standing surface (31) and with an inlet opening (12) which has a lower boundary (12a) and an upper boundary (12b) and through which the respective wheel (21, 23) can be introduced into the interior space (11), characterized in that the lower boundary (12a) is spaced from the standing surface (13), wherein between the standing surface (13) and Inlet opening (12) a housing section (14) is provided and in the interior (11) of the housing (10) on the housing section (14),on the base (13) or on a mounting element connected to the housing section (14) and / or the base (13) there is a closure element (15) which is designed such that - in an inserted state of the wheel (21, 23) - in a closed state it can encompass a tire and a rim of the wheel (21, 23) in an encompassing area (36).

The invention discloses a wafer carrier layer height automatic calibration method and a related device, and the method comprises the steps: moving a wafer carrier, and enabling a dual-path cooperative photoelectric sensor to be capable of detecting a metal support ring of a current wafer at the same time; a wafer carrier is moved, the lower boundary position P1 and the upper boundary position P2 of a metal supporting ring of a current wafer are recognized based on a double-path cooperative photoelectric sensor, the wafer carrier is divided into a plurality of layers, and wafers are arranged in all the layers; the middle position Pm of the metal supporting ring is determined based on the lower boundary position P1 and the upper boundary position P2 of the metal supporting ring, and the middle position Pm of the metal supporting ring serves as the calibration position of the height of the wafer carrier layer where the current wafer is located. And the method has the characteristics of small error and high efficiency.

In an example method, an NWM molding blank comprising a nonwoven material held compressed by an adhesive is placed in a separable mold and heated to a melting temperature of the adhesive. The molding blank expands, shaping into an NWM molded object having a 3D geometry as an intermediate NWM object. The intermediate NWM object is cooled through a temperature band having an upper boundary and a lower boundary, and further cooled to a solidification temperature of the adhesive. The upper boundary is above the solidification temperature and the lower boundary is below the adhesive melting temperature. While in the temperature band, the mold is separated so that exposed surfaces of the intermediate NWM object are accessible. The object is then transported to a contoured forming surface of a forming bed by an actuatable arm having an end effector that grips the exposed surfaces via vacuum suction, the object is lifted from the mold and placed on the contoured forming surface. Optionally, the end effector contacting surfaces include final forming features. The actuatable arm compresses the intermediate NWM object against the contoured forming surface and, optionally, the end effector final forming features, and continues compression until cooled to the solidification temperature.

The invention relates to a cathodic arc evaporation device, which comprises: - a target (3) having a target surface (3') including an active surface (3''), from which material can be evaporated in a cathodic arc method; - a limiting part (4) surrounding the outer boundary of the target surface (3'); - an anode (2) having an electron-accepting surface (2', 2'', 2'''), the anode (2) including at least one of the target (3) and the limiting part (4) in at least one of the target plane and the axial distance in front of the active surface; - a magnetic guiding system adapted to provide a magnetic field substantially parallel to at least the outer region of the target surface at the target surface, such that the magnetic field lines are parallel to the target surface or inclined at an acute angle α to the target surface, where the active surface (3'') is defined in the region of the surface (3'), and where the magnetic field lines enter the target surface at an acute angle α ≤ 45°; - a central axis Z or a central plane Z'; wherein both the limiting part (4) and the anode (2) are made in a closed geometric shape and are electrically insulated from each other and from the target, where the minimum distance of the electron-accepting surface (2', 2'', 2''') from the active surface (3'') is defined by the radial distance Δr from the outer boundary of the target surface (3') to the inner boundary of the electron-accepting surface 14 At least one of them is defined, whereby the outer boundary of the target surface (3') has a radial distance r1 from the middle of the target, and the inner boundary of the electron-accepting surface has a radial distance r4 from the middle of the target, and an axial distance h1 from the target surface (3') to the upper boundary of the limiting part or an axial distance h2 from the target surface (3') to the lower boundary of the electron-accepting surface (2', 2'', 2''').

The present invention proposes a method and system for detecting burrs on a pole piece. The method comprises: obtaining a pole piece image and selecting an ROI; calculating the row coordinates of the actual foil center point of each column in the ROI column by column to extract the center line of the foil in the ROI; determining the pixel points of the coating area column by column based on the grayscale value of each area in the ROI, taking the maximum value of the row coordinates corresponding to the pixel points of the coating area in any column as the lower boundary of the coating, and the minimum value as the upper boundary of the coating; calculating the difference between the row coordinates of the center line of the foil in any column and the upper boundary of the coating in the current column and the lower boundary of the coating in the current column, respectively, to determine the burr type of the current column. The method disclosed in the present application realizes the extraction of the center line of the foil and the determination of the boundary of the coating area at the same time according to the grayscale value distribution characteristics of the pole piece image, so as to use the difference between the row coordinates of the center line of the foil and the boundary of the coating area as the basis for judging the burr type. The calculation method is simple and fast, effectively resists noise interference, and the detection result is highly accurate.

A protective device (40) is used for an exposure unit (18) of a manufacturing device (1) for producing a three-dimensional object (2) by selectively solidifying a building material (15) layer by layer. The exposure unit (18) is arranged in a process chamber (3) of the manufacturing device, the exposure unit (18) comprises at least two exposure units (30, 31, 32), each exposure unit generating a beam of light that can be directed at least onto one pixel in a working plane (7), and the exposure unit has, on its underside facing the working plane (7), a lower boundary (18a), which bounds the exposure unit (18) towards the working plane (7). The protective device (40) can be attached to the lower boundary (18a) of the exposure unit (18) and is designed to keep the lower boundary (18a) of the exposure unit at least partially free of contamination.

The utility model discloses a mattress and a combined Simmons mattress, the mattress comprises a spring bed net and a porous cover, the spring bed net comprises a lower frame, an upper frame and a spring net arranged between the lower frame and the upper frame; a plurality of cover top ventilation holes are formed in the top of the porous cover, a plurality of cover side ventilation holes are formed in the side portions of the periphery of the porous cover, the bottom of the porous cover is formed by splicing a plurality of splicing blocks, and the splicing blocks are connected with the side portions of the periphery of the porous cover in a bendable mode; the multi-hole cover is provided with a cover concave inner cavity, the spring bed net is detachably installed in the cover concave inner cavity, the multiple splicing blocks are bent towards the lower side of the spring bed net and wrap the lower side of the spring bed net, and therefore the spring bed net and the multi-hole cover are tightly connected and fixed. The mattress can form a ventilation network, and is ventilated, cool, high in comfort level, simple in structure and convenient to assemble and disassemble.

The invention discloses a section water level-based riverway submerging drawing method, which comprises the following steps of: acquiring section data of each riverway section, riverbed roughness of a riverway, upper boundary hourly flow and lower boundary water level, and determining the section water level and a riverway section water level line; calculating a first submerging distance and a plurality of second submerging distances from the first section river bank point of each river section to the central section of the target river; determining the coordinate of a first side river bank point adjacent to the first section river bank point according to the third coordinate of the river channel point closest to the river channel section, the second submerging distance and the first coordinate of the first section river bank point; coordinates of other first side river bank points and coordinates of second side river bank points; and drawing a first bank according to the coordinates of the first-side river bank point, and drawing a second bank according to the coordinates of the second-side river bank point. According to the method, the submerging range can be accurately determined, the flood submerging area can be pre-judged in advance, the flood submerging loss is evaluated, the flood control plan is made, and threats to life and property safety are reduced.

The utility model provides a decoration plate hook structure which comprises a decoration plate body, one side plate face of the decoration plate body forms an inner decoration face, the decoration plate body is provided with a receding area, and the lower boundary of the receding area partially protrudes upwards to form a hook rib. The trim panel body is provided with a first flange along the boundary of the clearance area, the first flange is folded towards the direction away from the interior facing, the edge of the hook rib is provided with a second flange, the second flange is folded towards the direction away from the interior facing, and the two ends of the second flange are correspondingly connected with the two ends of the first flange into a whole. According to the decoration plate hook structure, the hook rib is integrally formed on the decoration plate body, so that the structure of the decoration plate hook can be simplified, the weight and the manufacturing cost of the decoration plate hook are reduced, the structural strength of the hook rib can be improved through the first turned-over edge and the second turned-over edge which are connected, and the service life of the decoration plate hook structure is prolonged. Therefore, the bearing capacity of the decoration plate hook can be improved.

The application discloses a method and system for forming an elliptical particle accumulation body, and applies to the fields of geotechnical engineering and material science technology, and comprises the following steps: defining a space boundary and a calculation rule; generating and placing bottom-layer elliptical particles in a left-to-right placement order: determining a circular arc segment in contact with a container boundary line, and determining the center of a first bottom-layer elliptical particle based on translation and offset calculation of a left boundary and a lower boundary; randomly generating a bottom-layer elliptical particle, forming an intrusion block with a previous elliptical particle, and performing placement judgment of the bottom-layer elliptical particle based on line segment information after offset of the lower boundary and the right boundary of the container; generating and placing upper-layer elliptical particles: randomly generating an upper-layer elliptical particle, traversing a current accumulation body surface elliptical particle set to form a corresponding intrusion block, and performing placement judgment of the upper-layer elliptical particle based on line segment information after offset of the left boundary, the right boundary and the upper boundary of the container. The application realizes generation of an elliptical particle accumulation body with high density and low porosity.

FIELD: soil mechanics.SUBSTANCE: invention relates to determining the lower boundary of the compressible layer after loading the foundation (stamp) in order to refine the calculation of foundation settlement. A device for measuring the displacement of soil layers under the base of a foundation includes a guide pipe of variable polygonal cross-section with freely fixed soil marks with helical blades configured to move along the axis of the guide pipe, wherein the diameters of the soil marks are made variable, decreasing from top to bottom, whereas the measuring instruments are installed in a reference system, to which a guide pipe with strings located inside, connecting the measuring instruments and the soil marks, is attached with its upper end using a conductor. The guide pipe is made as a single piece with at least three paired through grooves. The marks are freely secured with removable pins, seated with a gap and allowing movement in paired grooves along the pipe axis. The heights of the grooves are variable, decreasing from top to bottom, and the guide pipe is passed through an opening in the foundation.EFFECT: increasing the reliability of the device’s ability to be used multiple times.1 cl, 4 dwg

The present invention discloses a storage device and a refrigerator having the storage device. The storage device includes a body, an adjustment component, a first partition frame and a second partition frame. The body includes a bottom wall, a pair of first side walls and a pair of second side walls. The first partition frame is connected to the pair of second side walls. The first partition frame includes a partition extending in the left-right direction. The second partition frame is rotatably connected to the first partition frame around a vertical axis through an adjustment component so that the storage device can switch between a stacked state and an unfolded state. The second partition frame includes a partition body, and the partition body includes two partition longitudinal rods adjacently arranged in the vertical direction. The partition body includes a partition board, and the length of the partition body is greater than the length of the partition body. In the vertical direction, one of the partition longitudinal rods is higher than the upper boundary of the partition and the other partition longitudinal rod is lower than the lower boundary of the partition. The present invention can not only improve the degree of freedom and flexibility of the division of the accommodating cavity, but also avoid the cross-slipping of adjacent storage partitions.

An elevator system includes an elevator car and a laser distance measuring device. The elevator car is moved along a travel path that is delimited at the top by an upper boundary and at the bottom by a lower boundary. The laser distance measuring device emits a laser beam and determines a distance to a position at which the laser beam impinges on an object. The laser distance measuring device is mounted on the elevator car such that the laser beam can be directed upward to the upper boundary in a first configuration and can be directed downward to the lower boundary in a second configuration. A current position of the elevator car can thereby be determined in a redundant manner. Furthermore, in a third configuration, lateral distances to boundary markers can be measured to read out information that is codified by the boundary markers.

The present invention provides a glue-free core having a good elasticity. The glue-free core comprises a pocket spring set, border wires, and binding straps, wherein the pocket spring set comprises a plurality of pocket springs integrally welded by means of ultrasonic waves, and each pocket spring comprises a pocket body and a spring which is compressed and then loaded into the pocket body; the border wires comprise upper and lower border wires, and the upper part and the lower part of the outermost pocket spring of the pocket spring set are fixedly connected to the upper and lower border wires, respectively; and the binding straps are fixed to the border wires to bind the pocket spring set, so as to limit the displacement and deformation of the pocket spring set. In the glue-free core of the present invention, the pocket springs are integrally welded by means of ultrasonic waves, so that the springs of the core can be integrally connected without glue, thereby solving the problem of the debonding of bonded portions of a conventional mattress due to aging of the glue, and preventing indoor air from being polluted by harmful gas released from the glue. In addition, the pocket springs welded by means of ultrasonic waves provide an excellent elasticity for the core.

The utility model discloses a user photovoltaic assembly, which comprises a lower frame, an upper frame, a bearing rope and a photovoltaic tile, and is characterized in that the lower frame is fixedly arranged; a lower supporting edge is arranged on at least one side of the lower frame; the upper frame and the lower frame are detachably connected, the upper frame and the lower frame are mutually buckled to form a rope penetrating hole, the bearing rope penetrates through and is fixed in the rope penetrating hole, the two ends of the bearing rope are fixedly arranged, a suspension supporting structure is formed, the vertical load of the user photovoltaic module on the roof is effectively reduced, and the situation that the user photovoltaic module is not firmly fixed due to damage of the roof structure is avoided. An upper extrusion edge is arranged on at least one side of the upper frame, and a tile clamping groove is formed between the lower supporting edge and the upper extrusion edge which are opposite; the edge of the photovoltaic tile is clamped and fixed in the tile clamping groove, the clamping structure is used for replacing the existing bolt connection, and the problem that the photovoltaic module of a user is not firmly fixed due to the fact that the bolt vibrates and loosens is solved. Therefore, the fixing reliability of the user photovoltaic assembly can be improved.

A method for manufacturing a rail includes casting a steel to obtain a semi-product. The steel has a composition comprising 0.20%≤C≤0.60%, 1.0%≤Si≤2.0%, 0.60%≤Mn≤1.60% and 0.5≤Cr≤2.2%, optionally 0.01%≤Mo≤0.3%, 0.01%≤V≤0.30%; the remainder being Fe and impurities. The method also includes hot rolling the semi-product into a hot rolled semi-product having the shape of the rail and comprising a head, with a final rolling temperature TFRT higher than Ar3; and cooling the head to a cooling stop temperature TCS between 200° C. and 520° C. The temperature of the head over time is comprised between a upper boundary having the coordinates defined by A1 (0 second, 780° C.), B1 (50 seconds, 600° C.), and C1 (110 seconds, 520° C.) and a lower boundary having the coordinates defined by A2 (0 second, 675° C.), B2 (50 seconds, 510° C.), and C2 (110 seconds, 300° C.). The method also includes maintaining the head in a temperature range comprised between 300° C. and 520° C. during a holding time thold of at least 12 minutes, and; cooling down the hot rolled semi-product to room temperature to obtain the rail.

The present invention is directed to a method (1000-6000; 1000A-E - 6000A-E) of predicting a conjunction between two bodies (50, 60; 50A,B; 50C,D; 50E,F, 50H). The method comprises the steps of: acquiring (2001; 2001A-G - 2001A-G) data defining at least one last known state and last known covariance of the two bodies; computing (2003-2007; 2003A-G - 2007A-G) a plurality of Gaussian Mixture Elements (GMEs) based on the acquired data; computing (3001-3003; 3001A-G - 3003A-G) a Gaussian Mixture Model (GMM) of an initial state based on the GMEs, the initial state being a state of the bodies at an initial time instant defining a lower boundary of a conjunction time interval comprising a time of closest approach of the two bodies; computing (3005-3015; 3005A-G - 3015A-G) Taylor expansions of dynamic equations of motions of the bodies for each GME in the GMM; computing (3017-3025; 3017A-G - 3025A-G) a final state and a GMM of the final state of the two bodies based on the Taylor expansions, the final state being a state of the bodies at a final time instant defining a higher boundary of the conjunction time interval; computing (3039; 3039A-G) a conjunction probability rate as a function of time based on the initial and final states and GMMs of the initial and final states, and computing (3045; 3045A-G) a conjunction probability by integrating the conjunction probability rate over the conjunction time interval, and determining (1015; 1015A-G) a possible conjunction if the conjunction probability exceeds a predetermined threshold. Advantageously, the step of computing (3017-3025; 3017A-G - 3025A-G) a final state and a GMM of the final state of the two bodies comprises: defining (3019; 3019A-G) a first matrix and a second matrix based on the Taylor expansion of state dynamic equations, the first matrix comprising coefficients of the Taylor expansion and the second matrix comprising exponents of the Taylor expansion, defining (3021; 3021A-G) a covariance matrix based on the GMM of the initial state, and computing (3023; 3023A-G) the GMM of the final state based on a combination of the first matrix, the second matrix and the covariance matrix.

The utility model discloses an elastic bolting device for a van vehicle, which relates to the technical field of logistics equipment and comprises a door plate, a bottom plate frame, a pipe hoop and an elastic rope. A transverse frame is arranged on the inner side of the door plate, and a hanging hole is formed in the transverse frame; the near end of the pipe hoop is rotatably arranged on a lower frame on the inner side of the door plate; the near end of the elastic rope is fixedly connected with the far end of the pipe hoop, and a rope hook is arranged at the far end of the elastic rope; when the door plate does not need to be bolted, the rope hook is hung and buckled in the hanging hole of the transverse frame, and is tightened under the action of the elastic rope so as not to slip off; when the door plate needs to be bolted, the elastic rope is stretched to separate the rope hook from the hanging hole, then the pipe hoop is rotated to face the bottom plate frame, the rope hook is hung and buckled to the lower wing face of the bottom plate frame, and the door plate abuts against the side wall under the action of the elastic rope to achieve stable bolting.

The utility model relates to a light-weight comfortable lining which is arranged between an upper boundary piece and a lower boundary piece, the light-weight comfortable lining is composed of a metal inner core and a rubber layer, the rubber layer wraps the outer peripheral face and at least part of the end face of the metal inner core, and the rubber layer is embedded between the upper boundary piece and the lower boundary piece. A metal outer pipe is not used, the production cost can be reduced, the hole shrinkage technology does not need to be considered, and therefore the design cost, the production cost, the management cost and the like are reduced, and the purposes of improving the shock absorption performance and improving comfort are achieved by increasing the using amount of rubber.

The present application belongs to the technical field of tilt-rotor aircraft flight control, and relates to a transition boundary protection method for tilt-rotor aircraft. According to the upper boundary of the transition corridor and the lower boundary of the transition corridor of the tilt-rotor aircraft, the maximum tilt rate upper boundary of the transition corridor and the maximum tilt rate lower boundary of the transition corridor are calculated. According to the current flight speed, the upper boundary of the transition corridor, the lower boundary of the transition corridor, the maximum tilt rate upper boundary and the maximum tilt rate lower boundary, the proportional coefficient of the current flight state approaching the upper boundary of the transition corridor and the proportional coefficient of the current flight state approaching the lower boundary of the transition corridor are calculated. According to the current given nacelle tilt rate instruction and the current nacelle angle, the upper limit proportional coefficient of the amplitude limiting and the lower limit proportional coefficient of the amplitude limiting are calculated. According to the maximum nacelle tilt rate, the minimum nacelle tilt rate, the proportional coefficient, the proportional coefficient, the upper limit proportional coefficient of the amplitude limiting and the lower limit proportional coefficient of the amplitude limiting, the upper limit of the nacelle tilt rate amplitude limiting and the lower limit of the nacelle tilt rate amplitude limiting are calculated. According to the current given nacelle tilt rate instruction, the maximum nacelle tilt rate, the minimum nacelle tilt rate, the proportional coefficient, the proportional coefficient, the upper limit and the lower limit of the amplitude limiting, the nacelle tilt rate instruction with the boundary protection function is calculated.