78 results about "Limited structures" patented technology

A system, method and computer program product for conducting questions and answers with deferred type evaluation based on any corpus of data. The method includes processing a query including waiting until a “Type” (i.e. a descriptor) is determined AND a candidate answer is provided. Then, a search is conducted to look (search) for evidence that the candidate answer has the required Lexical Answer Type (e.g., as determined by a matching function that can leverage a parser, a semantic interpreter and/or a simple pattern matcher). Prior to or during candidate answer evaluation, a process is provided for extracting and storing collections of entity-type pairs from semi-structured text documents. During QA processing and candidate answer scoring, a process is implemented to match the query LAT against the lexical type of each provided candidate answer and generate a score judging a degree of match.

The invention relates to a flat plate vapor chamber and a manufacturing method thereof. The flat plate vapor chamber comprises a packaging chamber, a porous capillary wick, a working medium and a vacuumizing and work medium filling interface, wherein the porous capillary wire and the working medium are positioned inside the packaging chamber; one end of the vacuumizing and work medium filling interface is communicated with the inside of the packaging chamber; and the other end of the vacuumizing and work medium filling interface is positioned outside the packaging chamber and is sealed. The manufacturing method of the flat plate vapor chamber comprises the following steps of: forming the packaging chamber by extruding or casing; forming the porous capillary wick by sintering or knitting; inserting the porous capillary wick into the packaging chamber; placing one end of the vacuumizing and work medium filling interface in the packaging chamber; extruding the packaging chamber by using a cold press die; moving away the cold press die; welding and sealing a front-rear end closing surface of the packaging chamber; vacuumizing the packaging chamber and filling a working medium; and pinching off the vacuumizing and work medium filling interface and welding and sealing the vacuumizing and work medium filling interface. According to the flat plate vapor chamber disclosed by the invention, the defects of limited structure, high manufacturing cost, low reliability, limited heat-radiating capability and the like in a traditional vapor chamber are fully overcome.

The invention provides a multi-die higher-order photonic switching structure based on a high-density memory in order to solve the problem of limited structure of a switching chip due to the bandwidthbottleneck of the memory of the conventional photonic switching structure. The structure is formed by mutual connection of K completely same photonic switching dies based on the high-density memoriesthrough an inter-chip interconnection network and includes N input/output ports, and each photonic switching die comprises N/K input ports, N/K electro-optical conversion modules, N/K separators, a storage input photonic switching network, an optical waveguide, a storage input buffer, a memory control logic, an inter-chip interconnection input output agent module, an inter-chip input buffer, an alternative selector, the high-density memory, a storage output buffer, a storage output photonic switching network, N/K photoelectric conversion modules, and N/K output ports, wherein K, N and k are all integers, 1<=k<=K, and K<=N. According to the structure, the complexity of the switching structure and the cost of optical devices are substantially reduced, and the order of the switching structureis further extended.

The invention relates to a packaging structure for a microphone with an embedded substrate, comprising a metal top cover, a substrate, a microphone chip, a circuit chip and a passive element. The upper surface of the substrate is used for carrying and fixing the microphone chip, the circuit chip and the passive element; grounding electrodes communicated electrically are arranged on the upper and lower surfaces of the substrate and used for being connected with the metal top cover to ground; an acoustic cavity of the microphone is formed hermetically between the inner surface of the metal top cover and the substrate. A limit structure is arranged on the metal top cover. The plane limited by the limit structure is higher than and parallel to the plane on which the bottom edge of the metal top cover is located, the plane is used for embedding the substrate to the metal top cover horizontally in a direction where the chip carrying surface faces upwards, the embedding depth thereof is adjusted via a height difference of the bottom edge of the limited structure and the bottom edge of the metal top cover, and the height difference is not greater than thickness of the substrate. The invention has a simple structure and high space utilization rate.

The invention relates to an instrument for optical measurement and its measurement method. The measuring instrument includes a laser pointing beam expander, a host, a support and a base. There is a laser pointing beam expander and a longitudinal translation mechanism of the host, and a laser pointing beam expander, a host lifting adjustment mechanism and a horizontal rotation positioning mechanism are arranged between the support and the base; the laser pointing beam expander and the host longitudinal translation mechanism include a micrometer, The laser pointing beam expander and the host horizontal rotation positioning mechanism include a horizontal rotating plate, a rotating rod, a limit block and a horizontal support plate, a support structure and a limit structure, and the laser pointing beam expander and the host lifting adjustment mechanism include a lifting adjustment column I and Ⅱ; The measurement method includes the laser pointing beam expander and the preparatory steps of adjusting the height, longitudinal position and horizontal direction of the host. The invention integrates flexibility, convenience and practicability, thereby reducing labor intensity of workers and improving construction efficiency.

The invention discloses a mechanical drive two-way self-locking device, which comprises a support bracket body, a drive shaft, a ratchet wheel and a pawl arranged on the support bracket body. The drive shaft is connected with the support bracket body through a seat cover; the ratchet wheel is movably connected with the drive shaft; and a limited structure and a friction assembly are arranged on the drive shaft. The friction assembly comprises operation threaded sleeves, compression nuts and friction damping parts. The mechanical drive two-way self-locking device provided by the invention adopts a ratchet wheel-friction self-locking structure, so that not only can the favorable anticlockwise self-locking be ensured, but also the clockwise rotation self-locking can be realized, the anticlockwise rotation operation can be applied under the state of anticlockwise self-locking, the rotation at any direction and the self-locking and unlocking at any position can be realized only through the operation control of an operation mechanism, special unlocking operation is not needed, and the operation is random, convenient and fast.

The invention belongs to the technical field of rolling bearing test, and particularly relates to a multi-physical field dynamic parameter test device for a rolling bearing cage. The device comprisesa rolling bearing cage dynamic parameter test device, a sensor test system, a driving device, a radial loading device, an axial loading device and a bearing box, and the experimental test of the rolling bearing cage under a certain complex load and a rotation speed can be realized. The rolling bearing cage dynamic parameter test device comprises a fiber grating sensor, a fiber grating signal transmission device, a test and compensation ring, an eddy current sensor, and a to-be-tested bearing. Multi-test point distributed synchronous test of strain and temperature of the rolling bearing cage under the condition of limited structure space can be realized, and the device is used for studying the relationship among multiple degrees of freedom, multi-point strain and temperature; by adopting the fiber grating sensor, one-line multi-point, high-sensitivity and small-size advantages are achieved; and by adopting a smooth ring and a special transmission bracket, sensor signal transmission is realized, and the impact on the cage test result can be reduced.

A piezoelectric motorization system for driving mechanical loads multi-dimensionally by an electronic circuitry is disclosed. The piezoelectric motorization system has a piezoelectric apparatus that is constructed by a mechanically flexible body that has multiple piezoelectric actuators attached its surfaces, where these actuators are controlled by an electronic circuitry. The mechanically flexible body has a finite structure with a sets of boundary conditions to determine its out-of-plane resonant modes. The electronic circuitry inject at least two sets of control signals into different groups of actuators at or near different resonant frequencies. Using these control signals, traveling waves can be generated on the piezoelectric apparatus to move mechanical loads placed on its surface. Or, the traveling waves are used to propel the piezoelectric apparatus for motorization. The moving direction and velocity are controlled and adjusted by amplitude ratio and phase difference among driving frequencies of control signals. The moving direction and velocity also is controlled by the size, shape and locations of piezoelectric actuators on the mechanically flexible body. Different combinations of bending and/or twisting modes are used to generate one-dimensional or two-dimensional movements. Finally, multiple piezoelectric apparatus can be placed on three orthogonal planes of a three-dimensional mass for three-dimensional motorization.

The invention relates to a miniature X-ray source device connected to a distal end of a guiding wire for insertion towards a desired location within an animal body for effecting radiation therapy, said X-ray source device at least comprising a vacuum tube accommodated in said housing containing a cathode and an anode spaced apart at some distance from each other; electron freeing means for freeing electrons from the cathode; electric field means for applying during use a high-voltage electric field between said cathode and said anode for accelerating said free electrons; said vacuum tube being at least partly transparent to X-ray radiation emitted by said anode, as well as cooling means for cooling at least said anode.

It is an object to provide a miniature X-ray source device having further limited constructional dimensions and an improved control of the working temperature of at least the anode and hence the working conditions of the miniature X-ray source device.

According to the invention the miniature X-ray source device is hereto characterised in that said cooling means are cryogenic cooling means. More in particular in a specific embodiment of said miniature X-ray source device said cooling means comprise at least one supply passageway for supplying pressurized gas towards said anode and at least one exhaust passageway for exhausting said pressurized gas from said anode, said supply passageway and said exhaust passageway being interconnected by means of an expansion chamber surrounding at least partly said anode.

An airborne tubular antenna comprises an L-shaped spiral radiator. The spiral radiator is positioned in an antenna radiant tube and a hollow support frame which are perpendicular to each other, a spiral line on the spiral radiator is divided into three sections in the antenna radiant tube, each section of thread pitch is different, two neighboring sections of spiral lines are hinged, and the spiral line on the spiral radiator is connected with a tail connector of a radio frequency cable. Since a spiral line technology is introduced in the antenna, by the aid of a spiral line model, within a limited structure size of the antenna, length of an antenna radiator can be increased, and radiation efficiency of short-wave communication can be improved. A partial spiral radiator is mounted in the antenna support frame, so that a radiation pattern of the antenna is close to be omnibearing, and the problem of telecommunication of the antenna is solved effectively according to the principle. The antenna has the advantages of convenience in mounting and dismounting, non-maintenance, high reliability and the like.

The embodiment of the invention discloses a spring, which comprises a first spring outer ring, a second spring outer ring and a spring inner ring which are coiled by using a steel wire, wherein the first spring outer ring and the second spring outer ring are distributed on two sides of the spring inner ring, and the calibers of the first spring outer ring and the second spring outer ring are larger than the caliber of the spring inner ring. The spring with the shape has the characteristics of buffering and difficult deformation. The spring with the shape is equivalent to the combination of two pagoda springs with opposite small ends, thereby greatly reducing the stroke space, and compared with the combination of the two pagoda springs with the opposite small ends, the spring reduces materials and saves the cost. Besides, the spring with the shape has the characteristics of buffering and difficult deformation. The spring is applicable for any mechanical structure requiring tension buffering, in particular to the structures with limited forming spaces. The buffering spring replacing a buffering gum cover in a clutch of a motorcycle can prolong the service life of the clutch and can play a role of buffering.

The invention belongs to a pipeline structure assembly, in particular relates to a tee joint structure assembly with multiple gas-transportation and composite pipeline structures. The tee joint structure assembly comprises a containing pipeline, wherein an air supplying pipeline, an emptying pipeline and an internal support structure are arranged in the containing pipeline, each air supplying pipeline and the emptying pipeline independently realize the tee joint, and each air supplying pipeline and the emptying pipeline are sheathed on the internal support structure. The pipeline structure assembly has the advantages that: the problem that branches of multiple pipelines in horizontal and vertical directions are interfered by reasonable internal pipeline arrangement, a pipeline structure is simplified in a limited structure space, unnecessary bend pipe design is avoided, welding and maintaining operation is convenient, and the volume of the whole assembly is reduced. By adopting the internal support structure designed specially, the structure position of the pipeline arrangement can be effectively controlled and the pipeline assembly intensity is also improved.

The invention discloses a cone penetration measuring instrument. The cone penetration measuring instrument comprises a rack body (1), wherein a test needle (2) is arranged on the rack body (1); a test cone head (3) is arranged at the lower end of the test needle (2); a guide hole (4) for allowing the test needle (2) to vertically drop into a test material is arranged in the rack body (1); the cone penetration measuring instrument is equipped with a limited structure (5) for allowing the test needle (2) to relieve limiting in the peripheral direction; the limited structure (5) comprises a limiting disc (5.1) which is arranged in the rack (1) and sleeves in the peripheral direction of the test needle (2); and a plurality of limited posts (5.2) which abut against the peripheral wall of the test needle are arranged in the peripheral direction in the limited disc (5.1) at intervals. The invention provides the cone penetration measuring instrument which relieves the limiting in the peripheral direction, so that the test needle drops, is not liable to tilt or is not liable to colloid with the guide hole, and speed, dropping into the test material, of the test cone head is consistent.

The invention discloses a multi-fault diagnosis and optimization method of a control system. The method comprises a step of constructing unknown input Kalman filter groups corresponding to actuators and sensors according to a discrete state space model, a step of obtaining output estimation error residuals corresponding to the actuators and the sensors according to an optimal state estimator X<^><C>(i,k) of a Kalman filter corresponding to an ith actuator in a kth step and an optimal state estimator X<^><O>(i,k) of a Kalman filter corresponding to an ith sensor in a kth step, a step of carrying out weighted quadratic sum processing on the output estimation error residuals and obtaining corresponding weighted squares residuals, a step of obtaining a preliminary diagnosis result according toa comparison result of the weighted squares residuals and a mechanism detection threshold, and a step of outputting an isolation strategy and a final diagnosis result according to the preliminary diagnosis result. According to the method, the Kalman filter groups with limited structures are used to carry out control system multi-fault isolation and optimization, a global optimal solution of stateperception can be obtained, and the accuracy of a fault diagnosis result of the control system is improved.

The invention relates to a windproof reinforcing structure used for temporary board houses, and in particular relates to a windproof reinforcing structure used for temporary board houses on soil. The reinforcing structure comprises a board house connecting device, a lacing wire rope and a ground anchoring device, wherein the lacing wire rope is connected with a first wire rope connection ring of the board house connecting device, and the board house connecting device is fixed on the roof in a threaded connection manner; the lacing wire rope is connected with a second wire rope connection ring of the ground anchoring device; the ground anchoring device comprises a supporting column, a clamping part and a supporting plate and is integrally buried in the soil. By adopting the windproof reinforcing structure, the windproof reinforcing requirement of the temporary board houses built on the soil can be met, and the windproof reinforcing structure has the advantages of reasonable and limited structure, significant windproof reinforcing effect, and convenience in mounting and demounting.

The invention provides a suspension centre joint which is used for lifting connection of a to-be-lifted load comprising a first side plate, a second side plate and a top plate. In the to-be-lifted load, the first side plate is vertically connected with the second side plate through a side plate reinforcing bar; the top plate is connected to the top surfaces of the first and second side plates; moreover, the top plate is connected with the second side plate through a top plate connecting angle shaft, while the top plate is directly connected with the first side plate through screws. The suspension centre joint disclosed by the invention is arranged between the first side plate and the second side plate. A bolt of a lifting device can be connected with a threaded hole formed in the top surface of the suspension centre joint after passing through the top plate and a connecting through hole in the top plate connecting angle shaft, thus the lifting function is realized. The suspension centre joint disclosed by the invention can provide suspension of a connecting interface of a storage box pull rod in a limited structure and bear a large load caused by the suspension, and also satisfies the structural connection and reinforcement requirements of clapboards, the side plates and the top plate.

The invention discloses a steel cable guide mechanism and a building curtain wall fixing device consisting of the steel cable guide mechanism. The steel cable guide mechanism comprises a fixed seat with open slots, and guide wheels which are arranged in the open slots, wherein the guide wheels are rotatably connected with the fixed seat and the number of the guide wheels is one or two. The building curtain wall fixing device comprises a steel cable with two ends which are fixedly arranged on a structural member main body, and the steel cable guide mechanism which is used for positioning the steel cable, wherein the steel cable guide mechanism is fixedly arranged on the structural member main body. The steel cable guide mechanism provided by the invention is used for a vertical steel cable. When external force is applied to the vertical steel cable, pressure is applied to the guide wheel on any side and the vertical steel cable moves up and down, the guide wheel can rotate; and when the external force disappears, the guide wheel rebounds to the original position. Therefore, the friction of the steel cable at a bearing point becomes rolling friction; if sector-shaped wheels are used, the contact area between the steel cable and the guide wheels can be increased within a limited structural space and the stress state of the steel cable can be improved; and since the guide wheels are made of a material such as aluminum, copper or engineering plastic which is softer than the material of the steel cable, the wear of the steel cable can be reduced as much as possible.

The invention discloses a fixture for security and fast installation of a CT sample. The fixture for security and fast installation of the CT sample includes a chuck assembly and a U-shaped fixture; the chuck assembly includes two chucks and two pins that are cooperated and connected; the two chucks are separately connected to the base and top chuck of a universal testing machine; each chuck is provided with two through holes; the ends of the two sides of the U-shaped fixture extend outward to form protrusions, and the size of each protrusion matches the through hole; the two protrusions of the U-shaped fixture are inserted into the through holes corresponding to the two chucks; the U-shaped fixture is provided with an inner cavity for accommodating the CT sample; and the CT sample is provided with a mounting hole for mounting a pin. According to the invention, the U-shaped fixture is first installed and fixed on the chuck assembly by using a fixture with a limited structure; and thenthe CT sample is put into the fixture and fixed with the pin; therefore, the operation is faster, more accurate and easier, the safety of the experimental operation is greatly improved, and the injuryof the fingers of an experimenter caused by clamping is avoided; and meanwhile, the fixture for security and fast installation of the CT sample is provided, and the automated experiment on fracture toughness is possible.