126results about How to "Reduce lateral displacement" patented technology

Devices and methods are provided for reducing the lateral displacement of an endovascular device, e.g. a stent graft, within an aneurysm sac. A stabilization system comprising one or more stabilizing elements is inserted within the aneurysm space between an implanted device and the vessel wall. Filling this space prevents changes in curvature of the implanted endovascular device, and prevents longitudinal displacement, thereby providing for improved long-term stability and durability of endovascular repair.

A post passivation rerouting support structure comprises a relatively thin support layer above the passivation layer to support the RDL, and a relatively thick support layer for fine pitch interconnects extending from the RDL and terminating as contact structures at the surface of the thick support layer, for a next level packaging structure. The thick support layer is planarized before defining the contact structures. The thick support layer may be formed after the conducting posts have been formed, or the thick support layer is formed before forming the conducting posts in vias formed in the thick support layer. An encapsulating layer may be provided above the thick support layer, which top surface is planarized before defining the contact structures. The encapsulating layer and the further support layer may be the same layer.

The invention discloses a laser triangulation sensor in the technical field of optical measurement. The laser triangulation sensor comprises a laser, a transmitting lens group, a receiving lens group, a photosensitive device and a signal processing device, wherein the laser, the transmitting lens group and a measured target are linearly arranged at the transmitting end; the receiving lens group and the photosensitive device are arranged at the reflecting end; the receiving lens group and the photosensitive device are arranged at the same side of the laser and the transmitting lens group and are located in the same plane with the laser and the transmitting lens group; and the signal processing device is connected with the photosensitive device for receiving electric signals. In the invention, non-axisymmetrical lenses are added in the receiving lens group, so that nonlinearity of the laser triangulation sensor is corrected in principle, and the problem of nonuniform resolution is solved.

The invention discloses a nonlinear tunable mass and liquid damper used by combining a tunable mass damper and a tunable liquid damper through nonlinear springs. The nonlinear tunable mass and liquid damper comprises a solid mass block, a cavity, internal viscous liquid, a plurality of universal wheels, a preserved hole and a nonlinear spring device. The solid mass block and a closed shell outside the solid mass block serve as a center structure. The viscous liquid with a certain volume is added in the cavity and can circulate in the reserved hole in the mass block. The center structure is connected with baffles or walls on the periphery through the four sets of nonlinear springs outside the cavity. Rotating shafts are arranged at the joints between the nonlinear springs and the baffles or walls so that the nonlinear springs can horizontally rotate. The universal wheels are arranged at the bottom of the center structure so that the damper can freely move in the horizontal plane. According to the working principle, energy input into a building through an earthquake or / and wind vibration is dissipated by means of the mass of the solid block, the non-linear springs and friction force provided when the viscous liquid flows through the small hole in the solid block. The nonlinear tunable mass and liquid damper integrates the advantages of the tunable mass damper and the tunable liquid damper, is installed on the top of a high-rise building, and is simple and reliable in structure, low in manufacturing cost and capable of achieving the good damping effect.

The invention relates to a swing self-reset and self-standing type high-rise structure.The structure mainly comprises an upper portion structure, stay rope systems, a friction damping device, a cast-in-place foundation, a common ground anchor, a pre-buried steel plate and a shearing-resisting ground anchor.The section of the upper portion structure is identical with the section of a common self-standing type high-rise structure while the stay rope systems are evenly distributed along the inner side of the cylinder wall of the upper portion structure, a swing hemisphere is arranged between the upper portion structure and the cast-in-place foundation, and meanwhile the friction damping device is installed at the proper position of the bottom plate.When the structure system bears a large dynamic load, the upper portion structure swings around the contact point of the swing hemisphere and the pre-buried steel plate, energy is dissipated through the friction damping device, shearing force is resisted through the shear-resisting ground anchor, and reset is achieved through prestresss stay ropes after vibration.The swing self-reset and self-standing type high-rise structure has the advantages that the steel using amount of the upper portion structure is small, the structure is simple, cost is low, automatic resetting can be achieved, and maintenance is convenient.

The invention relates to a deep-water well-drilling device that is based on near-water-level disengagement, which is characterized in that, the drilling device comprises a water-isolating pipe connected with a well-drilling platform; in the middle of the water-isolating pipe, an upper flexible joint is arranged; the water-isolating pipe passes a float cabin and is connected with a blowout preventer; the upper end of the float cabin is connected with the water-isolating pipe through a disengaging mechanism; below the blowout preventer, a ballast tank is arranged; between the blowout preventer and the ballast tank, an upper wellhead is placed; the upper end of a stress joint connected with a centering guide goes deeply into the ballast tank and is connected with the upper wellhead, and the lower end of the stress joint is connected with a hi-pressure water-isolating pipe, out of which a float block is provided; the bottom end of the hi-pressure water-isolating pipe is connected in sequence with a lower flexible joint, a lower wellhead, a conduit and a casing pipe; the conduit and the casing pipe are fixed in the seabed; between the perimeter of the blowout preventer and the lower part of the opening of the moon pond of the well-drilling platform, at least three centering ropes are connected. The invention is of high applicability, steady performance, is convenient to disengage the water-isolating pipe, and can be widely used in deep-water well drilling.

The invention belongs to the technical field of seabed pipeline laying and particularly relates to a method for fixing a seabed pipeline and preventing buckle propagation. The method comprises: manufacturing a plurality of pairs of reversed U-shaped shells of which the inside diameters are the same and the outer edges are tangent according to the outside diameter and wall thickness specification of the seabed pipeline, wherein the upper parts of the shells are in semi-annular shapes and the lower parts of the shells have semi-cylindrical hollow cuboid bases; connecting the surfaces of the bases with barrel structures to form buckle preventing fixers; and mounting the fixers on the seabed pipeline at intervals along a radial direction. The method adopts a reasonable mounting process, and can simplify operation, reduce cost, effectively fix the seabed pipeline and prevent buckle propagation, and ensure the safe and stable operation of the seabed pipeline.

An air mattress has a top chamber and a bottom chamber separated by a barrier. The patient rests on the top surface of the top chamber, which has a plurality of apertures discharging air through apertures that are not blocked by the patient. The top chamber is provided with temperature-controlled heated or cooled air at a regulated pressure. Heated or cooled air from the top chamber is delivered to an area substantially surrounding the patient. The bottom chamber has a bottom surface containing a plurality of apertures that remain closed due to the weight of the mattress and the patient when the pressure-regulated air is beneath a pre-selected value. When the air pressure is increased, the apertures at the bottom surface of the bottom chamber emit air, creating an air cushion underneath the air mattress that facilitates lateral movement of the mattress over a flat or irregular surface, such as from a hospital bed to a stretcher, or from a stretcher to an operating table.

The invention discloses a lane shift control system based on crosswind influences and a control method of the lane shift control system. The control system is composed of a signal acquisition part, an ECU and an actuator part. Wind speed sensors located on the two sides of a vehicle body are additionally arranged on the signal acquisition part so as to detect the crosswind speed, and the signal output ends of all the components of the signal acquisition part are in control connection with the ECU. The actuator part is composed of an instrument board LED lamp, a hazard warning lamp, a buzzer, a vibrator, an engine throttle valve and a vehicle control system, and the signal input ends of the instrument board LED lamp, the hazard warning lamp, the buzzer, the vibrator, the engine throttle valve and the vehicle control system are in control connection with the ECU. By the adoption of the control method, the influences of crosswind on lane shift are taken into consideration, vehicle speed reduction serves as an active intervention manner, lane shift signals, the response time of a driver and the limit vehicle speed of the vehicle in the crosswind environment are comprehensively considered, and the vehicle speed and the lateral displacement within driver responding and mechanical transmission delay time are reduced.

The invention discloses a novel method for processing a soft soil subgrade by pile-supporting reinforcing technology, which comprises the following steps of: A, driving piles into the subgrade to be stabilized in a way that pile ends penetrate a soft soil layer to a supporting layer, and distributing the piles into a square; B, erecting formworks at the tops of the piles, casting in-situ reinforced concrete pile caps, bidirectionally and uniformly distributing fabric reinforcement along a full length and burying steel heads into the sections of the pile caps to distribute the steel heads intothe sections of the pile caps; C, maintaining the cast-in-situ reinforced concrete pile caps, filling embankment earth fillers among the pile caps and performing field engineering; D, before paving reinforcing materials, cleaning the top sections of the pile caps and keeping clean the top sections of the pile caps, and when paving the reinforcing materials, inserting the steel heads buried in thetops of the pile caps into reinforcing material meshes for fixation; and E, erecting the formworks above the top sections of the pile caps, casting concrete fixed ends and fixing the reinforcing materials at the tops of the piles. The method is easy and convenient to operate, and solves the problems of excessive lateral displacement of the subgrade and embankment, excessive sedimentation, excessive non-uniform sedimentation and low reinforcing material utilization efficiency in the prior art.

An air mattress has a top chamber and a bottom chamber separated by a barrier. The patient rests on the top surface of the top chamber, which has a plurality of apertures discharging air through apertures that are not blocked by the patient. The top chamber is provided with temperature-controlled heated or cooled air at a regulated pressure. Heated or cooled air from the top chamber is delivered to an area substantially surrounding the patient. The bottom chamber has a bottom surface containing a plurality of apertures that remain closed due to the weight of the mattress and the patient when the pressure-regulated air is beneath a pre-selected value. When the air pressure is increased, the apertures at the bottom surface of the bottom chamber emit air, creating an air cushion underneath the air mattress that facilitates lateral movement of the mattress over a flat or irregular surface, such as from a hospital bed to a stretcher, or from a stretcher to an operating table.

In systems embodying the invention, a battery powered collimated light source is located at the muzzle end of a cannon and is beamed back over the length “L” of the cannon gun tube to the collecting aperture of an optical transceiver located near the breech end (or trunnion) of the cannon. The turn-on and turn-off of the collimated light source is under the control of the gunner of the tank or the tank's fire control computer system to ensure that the battery power / energy is used only when deemed necessary by the user so that battery power is conserved.

An aspect of the present invention is drawn to a device for use with an electrostatic chuck having a top surface and a bottom surface, the top surface being separated from the bottom surface by a width, the electrostatic chuck additionally having a hole therein, the hole having a first width at the top surface and having a second width at the bottom surface, the first width being less than the second width, the top surface being capable of having wafer disposed thereon. The device includes a pin, a shaft, a neck portion and an outer housing portion. The pin has a pin width less than the first width. The shaft has a pin-holding portion, an end portion and a central portion disposed between the pin-holding portion and the end portion. The central portion has a first bearing portion. The outer housing portion has a first end and a second end and includes a second bearing portion. The shaft is disposed within the outer housing portion and is moveable relative to the outer housing portion. The neck portion is disposed at the first end. The second bearing portion is stationary relative to the neck portion. The first bearing portion is movable relative to the second bearing portion.

An insulating concrete form foam block bi-directional system comprises a pair of opposed and parallel foam sidewall panels spaced using a plurality of plastic and metal band ties that act as a fire-break between the two exterior finished concrete wall surfaces. Each tie comprises nearly full sidewall height, plastic flanges which engage the sidewalls and a metal band cross-connecting vertical holders of the ties. The metal band forms a wide opening to enhance concrete flow. The tie results in a minimal downward stress impact on the tie during concrete placement. The top and bottom surfaces of each sidewall are formed with raised areas and non-raised areas which interlock with adjacent blocks. The side surfaces of each sidewall are formed with vertical tongues and grooves which interlock with like tongues and grooves of corner pieces which are adapted to form right or left-hand comers.

The invention relates to an air-inflated membrane structure with a crossing cable net arranged along a geodesic line. The air-inflated membrane structure comprises an air-inflated membrane and bracing cables, wherein after the air-inflated membrane is shaped through inflating, the middle part of the air-inflated membrane is of a cylindrical body, the two ends of the air-inflated membrane are of smooth-transition arc-shaped peripheral membrane faces, and the bracing cables are arranged on the peripheral membrane faces along the direction of the geodesic line in a manner that anchor points at the two ends of each bracing cable are taken as starting points. Compared with the prior art, the air-inflated membrane structure has the advantages that the concept that the geodesic line is the shortest in a spatial curved face is utilized, the crossing cable net is arranged at the periphery of the air-inflated membrane along the direction of the geodesic line, and the bracing cables are restricted to lateral movement and cannot be subjected to the problem of swinging under normal use; and as the bracing cables are restricted to the lateral movement, the number of nodes, connected with the bracing cables, in the whole peripheral crossing cable net can be accordingly reduced, the stress on the nodes is smaller, the difficulty of construction is reduced, and then, the economical efficiency and safety of the structure are increased.

The invention discloses a separated type near-field micro-nano photoetching method and a device based on white light interferometry gap detection and an ultraprecise aligned overlaying technology. Themethod can achieve large-area separated type exposure and ultraprecise aligned overlaying. The device comprises an ultraprecise environmental control system, an active vibration isolation platform, asupporting framework, an ultraviolet exposure light source, a photoetching camera lens module, a gap detection system, an alignment module, a wafer chuck module and a control system. By means of a white light interference spectral measurement technology, the device can achieve nanoscale online gap detection and leveling; thus, separated type exposure is achieved; by means of the alignment moduleand the control system, the ultraprecise aligned overlaying technology can be achieved.

The invention discloses a seedling taker. The seedling taker comprises a connecting rod mechanism, a clamping mechanism and two groups of transferring and storage drums. The seedling taker disclosed by the invention has the beneficial effects that the connecting rod mechanism leads the clamping mechanism to be in two states, and adjacent potted seedlings are taken out under the two states, so thatsimultaneous operation of the adjacent clamping plates is avoided, the interference of equipment is reduced and the taking of the potted seedlings out of seedling discs with small spacing can be realized; due to an ejecting mechanism, partial structures of the potted seedlings are exposed outside, so that the operation of clamping parts is convenient, the horizontal displacement of the clamping parts can be reduced and the space occupation can be further reduced. The invention also discloses a plant transplanting machine with the seedling taker.

The invention discloses a strong-water-permeability stratum building foundation pit horizontal grouting sealing bottom construction method. The strong-water-permeability stratum building foundation pit horizontal grouting sealing bottom construction method includes the following steps that horizontal grouting sealing bottom construction is conducted, wherein precise positioning and horizontal grouting hole drilling are conducted through a horizontal directional drilling machine, and after hole drilling is completed, retreating type grouting is conducted when drill stems are dragged back, and ahorizontal sealing bottom is formed at the bottom of a foundation pit; and vertical curtain construction is conducted, wherein after sealing bottom horizontal grouting is completed, closed vertical curtains are formed on the four sides or the three sides of the foundation pit, complete lap joint connection is conducted on the vertical curtains and the horizontal sealing bottom, and in other words, a strong-water-permeability stratum foundation pit water insulation structure is formed. According to the strong-water-permeability stratum building foundation pit horizontal grouting sealing bottomconstruction method, vertical curtain construction is conducted after horizontal sealing bottom construction is conducted; firstly, the horizontal sealing bottom can be rapidly formed for the foundation pit to control underground water; then, the vertical curtains and the horizontal sealing bottom structure are connected together, and therefore a three-dimensional anti-seepage structure can be formed for the foundation pit project, and the effects of supporting, water insulation and foundation pit project reinforcing are achieved; and while the surrounding environment is well protected, the project cost is saved, and the project risk is lowered.

The invention discloses a nonlinear air spring. The nonlinear air spring comprises an upper cover plate, a support plate, air bags, an annular rubber pile and an abrasion plate; the support plate is coaxially arranged below the upper cover plate, upper and lower sub-openings are arranged at the air bags on the upper cover plate and the support plate, the annular rubber pile is coaxially bonded atthe bottom of the support plate, and the abrasion plate is fixed to the top surface of the support plate; the center position of the support plate is provided with a limiting projection that projectsdownwardly into an inner cavity of the annular rubber pile, the center position of a bottom plate of the annular rubber pile is provided with a limiting stop which protrudes upwards, the top surface of the limiting stop is a groove shape to form a limiting groove, the limiting protrusion extends into the limiting groove along the central axis and is not in contact with the limiting groove, the nonlinear air spring is characterized in that the limiting protrusion is sleeved with an elastic stop, and the elastic stop extends into the limiting groove and is not in contact with the limiting groove. The three-stage transverse nonlinear rigidity is realized, various line conditions are better adapted, and the safety requirement of a vehicle is guaranteed. The invention further provides a transverse rigidity design method of the nonlinear air spring.

The invention belongs to the technical field of laying submarine pipeline facilities, and relates to a submarine pipeline bending-resisting fixer which is used for fixing and protecting a submarine pipeline. The submarine pipeline bending-resisting fixer comprises a semicircular upper shell, a lower base and a barrel-shaped top plate, wherein the lower base is a semi-cylindrical hollow cuboid, inner diameters of the upper shell and the lower base are same, outer edges of the upper shell and the lower base are tangent and provided with extending eye plates, the eye plates are used for connecting the upper shell and the lower base through a bolt and nut pair, and the lower base is connected with the barrel-shaped top plate through a bolt. The invention has the advantages of simple manufacture process, convenient installation and operation and low cost, and can be used for effectively fixing the submarine pipeline and preventing bending from spreading so as to ensure the stability and the integrity of the submarine pipeline and reduce the economic loss caused by structure damage by the bending of the submarine pipeline.

An aspect of the present invention is drawn to a device for use with an electrostatic chuck having a top surface and a bottom surface, the top surface being separated from the bottom surface by a width, the electrostatic chuck additionally having a hole therein, the hole having a first width at the top surface and having a second width at the bottom surface, the first width being less than the second width, the top surface being capable of having wafer disposed thereon. The device includes a pin, a shaft, a neck portion and an outer housing portion. The pin has a pin width less than the first width. The shaft has a pin-holding portion, an end portion and a central portion disposed between the pin-holding portion and the end portion. The central portion has a first bearing portion. The outer housing portion has a first end and a second end and includes a second bearing portion. The shaft is disposed within the outer housing portion and is moveable relative to the outer housing portion. The neck portion is disposed at the first end. The second bearing portion is stationary relative to the neck portion. The first bearing portion is movable relative to the second bearing portion.

The invention relates to a K-shaped supporting structure in a wall body. The K-shaped supporting structure is used in the wall body of a cold-bending thin-walled steel structure building system. The structure comprises a top guide beam which is arranged at the top of the wall body, a bottom guide beam which is arranged at the bottom of the wall body and is arranged in parallel to the top guide beam, and a plurality of wall upright posts which are arranged between the top guide beam and the bottom guide beam in parallel; the wall upright posts are respectively arranged in parallel to the top guide beam and the bottom guide beam. The supporting structure also comprises a wall transverse beam which is arranged between the top guide beam and the bottom guide beam and is vertically and fixedly connected with the wall upright posts; supporting cant beams are arranged between the top guide beam and the wall transverse beam as well as between the wall transverse beam and the bottom guide beam. Compared with the prior art, the K-shaped supporting structure in the wall body has the advantages of high load resistance, stable structure and the like.

The invention discloses a subway car depot testing line composite vibration-isolation barrier. The composite vibration-isolation barrier is arranged in a foundation soil layer under the two sides of a testing line railway ballast. The overall depth D, the overall width W and the distance S between the vertical face, close to the railway ballast, of the inner side of the vibration-isolation barrier and the vertical face where the center line of a testing line rail is located meet the following conditions that D is larger than or equal to 0.5 lambda R, W is larger than or equal to 0.1 lambda R, lambda R is larger than S, and S is larger than or equal to 0.7 lambda R, wherein lambda R is the Rayleigh wavelength of first-layer foundation soil at the bottom of the testing line railway ballast. The vibration-isolation barrier can effectively reduce vibration damage of subway car depot testing line rain operation to a superstructure, and thus reduces influences of vibration of a testing line train on the superstructure.

A divider barrier 1 for roadway delineation includes detachably juxtaposed divider members 2, 3, 4. The divider members have each a housing-like base body 5 which can be placed on the ground and has slanted roof-shaped lateral collision plates 6, 7. Connected to the lower longitudinal edges 10 of the collision plates 6, 7 are support plates 11, 12 which extend from the base body 5 outwards. A guide bar 15 is provided above the base body 5 at a vertical distance thereto. Connecting means 18–21 are provided to detachably couple successive divider members 2, 3, 4 with one another. The support plates 11, 12 of two successive divider members 2, 3, 4 are detachably connected to one another by means of fishplates 35 on the underside, wherein each fishplate 35 is hereby fixed with its first end portion 36 under the support plate 11 of the one divider member 2, 3, 4 and with its second end portion 37 under the support plate 12 of the following second divider member 2, 3, 4. Each of the first end portion 11 as well as the second end portion 12 of each fishplate 35 has a receiving opening 40 for engagement of a pin 41 constructed of round configuration and secured under each of the support plates 11, 12. As a consequence of these pins 41, the divider barrier 1 is stiffened against lateral displacement.

The invention relates to a cross bracing type reinforced concrete energy consuming device, which belongs to the field of resistance and absorption of earthquake for construction structures, and overcomes the defects that the framework structure of reinforced concrete is small in lateral rigidity and easy to laterally sway under the action of the earthquake, and a traditional energy consuming device has the defects of high construction cost and large construction difficulty. The energy consuming device comprises a first and a second main bracings as well as a first and a second assistant bracings in a rectangular area ABCD, wherein the first main bracing is arranged on the diagonal AC of the rectangle ABCD; the second main bracing is arranged on the diagonal BD of the rectangle ABCD; or the first main bracing is arranged in the position deviating from a first vertex and a third vertex in a distance of 1 to 1.5 times the height of a framework beam, and is crossed with the upper edge and the lower edge of the rectangle ABCD; the second main bracing is arranged in the position deviating from a second vertex and a fourth vertex in a distance of 1 to 1.5 times the height of the framework beam, and is crossed with the upper edge and the lower edge of the rectangle ABCD; the assistant bracings are arranged on connecting lines of bisection points of four edges of the rectangle ABCD; the first and the second main bracings as well as the first and the second assistant bracings form a hollow grid; and when used as a filling wall, the hollow grid is filled with energy absorbing materials.

The invention provides an active constrained type cast-in-situ frame beam-column joint system based on a retard-bonded prestress technology and belongs to the field of civil and structural engineering. The system comprises cast-in-situ frame beam-column joints, retard-bonded prestress bars and wedge-shaped anchorage devices. The cast-in-situ frame beam-column joints are each of a cross structure and comprise left-side cast-in-situ concrete beams, right-side cast-in-situ concrete beams, upper-side cast-in-situ concrete columns, lower-side cast-in-situ concrete columns and joint core areas. Thewedge-shaped anchorage devices are arranged on the connecting portions of the ends of the columns and the beams, and the right-angle sides of the wedge-shaped anchorage devices are matched with the surfaces of the beams and the columns. The retard-bonded prestress bars are in arc shapes and buried in cast-in-situ structures, and the two ends of the retard-bonded prestress bars are connected with the wedge-shaped anchorage devices of the corners of the adjacent beam-column joints. After the retard-bonded prestress bars around the cast-in-situ frame beam-column joints are tensioned, through thewedge-shaped anchorage devices, X-shaped active constraint is provided for the cast-in-situ frame beam-column joints. According to the active constrained type cast-in-situ frame beam-column joint system based on the retard-bonded prestress technology, the seismic performance of the joints is improved, lateral displacement of frame structures is reduced, and the system is more convenient to construct.

The invention discloses a cement soil enclosure wall-cast-in-place pile cantilever type combined support. The cement soil enclosure wall-cast-in-place pile cantilever type combined support comprises acement soil stirring pile enclosure wall, and is characterized in that cast-in-place bored piles are driven on the outer side of the cement soil stirring pile enclosure wall to form a combined support; a concrete pressure top plate is arranged at the top of the combined support for improving the integrity of an enclosure structure; and the bottom of a foundation pit on the inner side of the cement soil stirring pile enclosure wall is reinforced, so that the stability of the enclosure structure is improved, and the top and bottom projection deformation is controlled. The combined support can be used for the conditions of limited construction conditions of the enclosure structure or buildings needing to be protected out of the pit, can effectively improve the rigidity of the enclosure structure under the condition of not increasing the width of the enclosure structure, reduces lateral displacement of the enclosure structure and the pit external ground surface settlement, reduces the influence on surrounding environments by foundation pit excavation, reduces the construction period, and achieves excellent applicability and social benefit.