1554results about How to "Strong expandability" patented technology

The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links and rings provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis and providing a low crimp profile, enhanced stent security and radial stiffness.

An apparatus and method for processing substrates uses one or more vacuum transfer chamber units to transfer some of the substrates between at least one load lock chamber unit and at least one vacuum process chamber unit.

The invention discloses an internet log data-based software defect failure recognition method and system. The method comprises the following steps: in allusion to internet source system log data and user system source log data, taking the internet source system log data as a training set and extracting features from the training set, and generating a software defect failure log recognition prediction model through machine learning or similarity matching; and analyzing and recognizing the user system source log data to obtain log fragments which represent software defect failures, so as to a software defect failure types in allusion to user system logs. A cloud computing system failure recognition system comprises a multi-line log collection module, an internet source system log classifier and an online log analysis and failure recognition module. According to the method and system disclosed in the invention, the failures, caused by software defects, massive log information recognition can be realized, the failure reasons can be rapidly positioned, the failures during the operation can be recognized and the failure types can be diagnosed, so that the reliability and usability of the cloud computing system can be improved.

The present invention provides high strength thin-gauge steel sheet with excellent elongation and hole expandability having a tensile strength of 500 MPa or more and a method of production of high strength thin-gauge steel sheet with excellent elongation and hole expandability enabling production of this on an industrial scale, that is, high strength thin-gauge steel sheet comprised of, by mass %, C: 0.03 to 0.25%, Si: 0.4 to 2.0%, Mn: 0.8 to 3.1%, P≦0.02%, S≦0.02%, Al≦2.0%, N≦0.01%, and a balance of Fe and unavoidable impurities and having a microstructure comprised of ferrite with an area fraction of 10 to 85% and residual austenite with a volume fraction of 1 to 10%, an area fraction of 10% to 60% of tempered martensite, and a balance of bainite.

According to the invention, techniques for visualizing customer data contained in databases, data marts and data warehouses. In an exemplary embodiment, the invention provides a apparatus for graphically analyzing relationships in data from one or more data sources of an enterprise. The apparatus can be used with many popular visualization tools, such as On Line Analytical Processing (OLAP) tools and the like. The apparatus is especially useful in conjunction with a meta-model based technique for modeling the enterprise data. The enterprise is typically a business activity, but can also be other loci of human activity. Embodiments according to the invention can display data from a variety of sources in order to provide visual representations of data in a data warehousing environment.

The invention discloses a stereoscopic three-dimensional display based on multi-screen splicing. The stereoscopic three-dimensional display comprises a two-dimensional display array, a projection lens array, an aperture array and a directional scattering screen. By utilizing a two-dimensional display pixel region segmentation mode and ensuring each display region of the display array to form a projector together with an aperture and a projection lens which is directly in front of the region, all projectors are staggered in vertical direction and project the images corresponding to the display regions to a same position on the directional scattering screen so as to form an image in front of an arc-shaped screen; and the images displayed in each display region are spliced by the images of a three-dimensional object from different visual angles according to a specific segmentation and recombination method. The stereoscopic three-dimensional display provided by the invention has the advantages of achieving high image resolution and high visual angle resolution and realizing observation of an exquisite three-dimensional image with a horizontal parallax. Compared with the single naked-eye display, stereoscopic three-dimensional display provided by the invention has the advantages that the multi-screen splicing settings ensures that the extension of visual angles is realized, and the spatial scale and viewing range of the three-dimensional images are increased.

The invention provides a seven-revolute pair extensible unit and a space extensible mechanism using same, and relates to a single-closed loop and single-freedom degree space extensible mechanism aiming at solving the problem that the existing five-revolute pair mechanism is rigorous in geometric parameter requirement, poor in extensible performance, low in reliability, and not suitable for a large-size space extensible mechanism. A plurality of first extensible units are single-closed loop and single-freedom degree extensible units, a plurality of first extensible unit ring arrays are arranged on a common base, and every two adjoining first extensible units are formed into a first space extensible mechanism by a common first connecting rod or a common sixth connecting rod; and a plurality of second extensible units are single-closed loop and single-freedom degree space extensible units, a plurality of second extensible unit ring arrays are arranged on the common base, and every two adjoining second extensible units are formed into a second space extensible mechanism by the common first connecting rod or the common second connecting rod. The invention is suitable for a support frame of a satellite parabolic antenna and a solar battery array.

The invention discloses a parallel active filter based on a modularization multi-level converter and a control method of the parallel active filter and belongs to the technical field of power harmonic suppression in a medium-high voltage high-power occasion. The problem that an existing parallel active filter cannot carry out harmonic combination compensation effectively, so that power distribution network electric energy quality is poor is solved. The filter comprises the modularization multi-level converter, a current transformation unit, a harmonic current detecting unit, a current controller, a capacitor C and a power grid electric reactor LS. The modularization multi-level converter is of a half-bridge-type topological structure, and an upper bridge arm and a lower bridge arm of the modularization multi-level converter respectively comprise n submodules SMn. According to the control method, a carrier phase-shifting modulation method is used, so that under the same switch frequency, equivalent switch frequency is high, switching loss is reduced, meanwhile, a capacitive coupling voltage sharing and ring current suppression strategy is used, and capacitor voltages and direct current bus voltages of the submodules are kept stable. The parallel active filter is used for harmonic suppression of a power grid.

The invention provides an exercise monitoring and management system applied to diabetes rehabilitation, which is capable of obtaining physiological parameters and environmental parameters of a diabetic in an exercise process in real time and carrying out real-time processing and feedback on the data. The exercise monitoring and management system comprises front-end monitoring equipment used for obtaining the physiological parameters and the environmental parameters of the diabetic in the exercise process in real time, and then uploading the data to a mobile phone client through a Bluetooth module with low power consumption, wherein the mobile phone client is capable of locally storing and initially processing the data, displaying a result on an interactive interface and transmitting the monitoring information to a remote health management system in real time through a mobile communication network; the health management system is capable of comprehensively analyzing based on an exercise management theory of the diabetes and feeding an analysis result back to a doctor and a patient, so that danger caused by the excessive exercise during exercise is avoided, and the exercise rehabilitation condition of the patient can be conveniently monitored and counted for a long time.

The invention provides a vehicle speed inducing method for green driving at a signalized intersection in a car networking environment and a simulation system. When a vehicle travels to a preset vehicle speed inducing region, a central control system can acquire motion state information (position, speed, acceleration and the like) of the vehicle, and real-time dynamic green driving vehicle speed inducing is carried out on the vehicle by taking pass of the intersection without parking as a target. The vehicle speed inducing method alleviates blockage of the intersection of an urban road on traffic flow and reduces vehicle delay, fuel oil consumption and pollutant discharge at the signalized intersection. On the basis, a vehicle speed inducing simulation system in the car networking environment is built by applying an open-source multi-agent simulation tool Netlogo, and travel time, fuel consumption and pollutant discharge of the vehicle when passing the intersection in two environments, namely the traditional driving and car networking, are simulated, compared and analyzed, so as to verify feasibility and effectiveness of the vehicle speed inducing method.

The invention provides a multi-type workpieces batch visual measuring system and a method, and belongs to the field of industrial detection automation. The measuring system comprises a data processingterminal, a workpieces detecting unit, an image acquiring unit, a control unit and the like. The measuring method comprises the following steps of: judging whether the to-be-detected workpieces are put into a detecting platform or not; obtaining a local depth image; obtaining a global image; identifying the type and number of the workpieces; and completing the size parameter measurement requiredby the measurement task. According to the multi-type workpieces batch visual measuring system and method, multiple kinds and multiple workpieces can be simultaneously detected at the same time; compared with traditional measurement means, the type and quantity of the workpieces, speed and accuracy and the like in measuring are significantly improved.

A method for forming tear lines in the rear side of an automobile interior article having a cover portion being developed from which an airbag inflates. When either an automobile interior article body having an integrally molded surface portion or an automobile interior article surface portion is to be molded, the mold is opened after tear line forming projections are moved forward and backward with the mold closed. Thus, the tear lines can be formed at the molding time without any visible extrusion marks of the tear line forming projections on the front surface side (the design face).

The invention belongs to the technical field of image processing, provides a multi-view-point computing and imaging method, and aims to acquire accurate and high-precision depth information. According to the technical scheme, the multi-view-point computing and imaging method based on a speckle-structure optical depth camera comprises the following steps of: acquiring a depth map and a color map from human-machine interaction equipment Kinect of Microsoft; detecting the edge of the color map, and expanding gap information until the expanded gap covers the edge, which corresponds to the color map, near the conventional depth map; then performing double-edge filtration estimation on points on the edge of the gap according to depth information and color information; limiting the estimation process by virtue of edge information of the color map; and after the color map and the restored depth map are acquired, converting the depth map into a disparity map, and synthesizing any number of virtual viewpoint maps by a disparity map synthesis method combining a depth image and a color image. The multi-view-point computing and imaging method is mainly applied to image processing.

The invention discloses a single-degree-of-freedom overconstrained shear-type deployable unit and space deployable mechanisms composed of the same. The single-degree-of-freedom overconstrained shear-type deployable unit comprises eight disc chucks, four sets of shear fork folding rods and eight sets of folding connecting rods; one set of the folding connecting rods limit the deployable degree of the basic deployable units by depending on the length of the connecting rods, the other seven sets of the folding connecting rods are all overconstrained connecting rods, and the overconstrained connecting rods can effectively improve the rigidity of the basic deployable units. Accordingly, the basic deployable units can be sequentially arranged in order, every two adjacent deployable units can form the first space deployable mechanism and the second space deployable mechanism by sharing four of the disc chucks and one set of the shear fork folding rods, and the length of the first space deployable mechanism and the size of the second space deployable mechanism can be changed by changing the quantity of the basic deployable units. The single-degree-of-freedom overconstrained shear-type deployable unit is simple in structure, has the high structural symmetry and is suitable for constructing an extendable space mast, a solar battery array support and a satellite plane reflecting antenna.

The invention relates to a Markov chain and neural network based traffic congestion state combined prediction method. The Markov chain and neural network based traffic congestion state combined prediction method comprises the following steps of 1 adopting a similar-PageRank Markov chain method to perform traffic congestion state prediction so as to obtain a first prediction result, 2 adopting a quantum multi-agent algorithm optimized back-propagating (BP) neural network method to perform traffic congestion state prediction so as to obtain a second prediction result, 3 obtaining the weight of the first prediction result and the weight of the second prediction result based on information entropy, 4 obtaining a final prediction result according to the first prediction result, the second prediction result and the corresponding weights. Compared with the prior art, the Markov chain and neural network based traffic congestion state combined prediction method has the advantages of being good in prediction real-timeliness, high in accuracy, good in extension and the like.

The invention discloses a multi-user wavelength division multiplexing quantum key distribution network system and a secret key distributing and sharing method thereof. The system comprises an Alice control end, a pulse conveying line and a Bob user end. The secret key distributing and sharing method comprises two stages of secret key distributing and sharing, wherein Alice and a plurality of Bob users carry out quantum secret key distributing and storing, and secret key priority is set; and Alice uses a secret key with low priority for encrypting a secret key with high priority into a ciphertext, then the ciphertext is sent to a user with low priority, the user with the low priority uses the secret key with low priority for decrypting the ciphertext, and the secret key with high priority is obtained. The system is reasonable, convenient to operate and low in cost, users in a network are relatively independent, the stability of the secret key generating rate of a single user is guaranteed, the secret key generating rate cannot be decreased along with increasing of users, meanwhile, a two-level equal-difference frequency space wave length planning scheme and an accurate pulse delaying technology are used, and mutual interference of pulses between different users is removed.

The invention provides a space deployable mechanism comprising multiple identical folding deployable units which are arranged symmetrically left and right. Each folding deployable unit comprises two identical vertical rods arranged longitudinally, two identical first chord members, two identical second chord members and two identical third chord members, wherein the starting ends of the two first chord members are connected to the upper ends of the two vertical rods through rotating pairs respectively, the tail ends of the two first chord members are mutually connected through a rotating pair to form a V-type rod, the middles of the two second chord members are mutually connected through a rotating pair to form a scissor form mechanism, the starting ends of the two second chord members are connected to the lower ends of the two vertical rods through rotating pairs respectively, the starting ends of the two third chord members are connected to the lower middle parts of the two vertical rods through rotating pairs respectively, and the tail ends of the two third chord members are connected to the tail ends of the two second chord members through rotating pairs respectively. The space deployable mechanism is good in deployable performance, high in rigidity and error containment and low in machining and manufacturing requirement.

The invention relates to an air conditioner control system of biological signals and a control method. The air conditioner control system of the biological signals comprises an air conditioner main body which comprises a wireless receiving module and an air conditioner control unit. The wireless receiving module receives an air conditioner state adjustment request command sent by a wireless transmission module and transmits the air conditioner state adjustment request command to the air conditioner control unit. The air conditioner control unit receives the air conditioner state adjustment request command sent by the wireless transmission module and responds to the air conditioner state adjustment request command to change the operational state of the air conditioner. A biological sensor is used for detecting a plurality of biological signals and providing the biological signals to a signal analysis engine module. The signal analysis engine module is used for collecting the biological signals, classifying, extracting and analyzing the biological signals, and generating the air conditioner state adjustment request command according to a pre-appointed conversion mode and protocol as well as transmitting the air conditioner state adjustment request command to the wireless transmission module. The air conditioner control system has the advantages of flexible operation, good comfort, and wide application range.

The invention specifically relates to an individualized learning-oriented educational resource recommendation method and system. The method comprises the following steps of: S1, acquiring basic characteristic data of learners and establishing a resource interestingness model and a learning style model of the learners according to the basic characteristic data, wherein the basic characteristic data comprises identity information, learning behavior records and educational resource operation records of the learners; S2, establishing a learner characteristic model according to the resource interestingness model and the learning style model; S3, calculating the similarity between different learners or the similarity between different educational resources according to the learner characteristic model; and S4, generating a target learner-oriented educational resource recommendation result according to the similarity between different learners or the similarity between different educational resources. Through the technical scheme provided by the invention, the target learner-oriented education resource individualized recommendation can be realized.

The invention relates to a space foldable mechanism, in particular to a space foldable mechanism derived from five-revolute-pair units, aiming at solving the problem that a high-storage-ratio space foldable mechanism is not developed at present. The scheme one is that a first connecting rod is rotatably connected with a first revolute pair, the first connecting rod is connected with a second connecting rod, the second connecting rod is connected with a third connecting rod and the third connecting rod is connected with a fourth connecting rod. The scheme two is that three foldable units are arranged in the shape of a triangular closed loop. The scheme three is that six space modules are sequentially connected to form a closed loop structure. The scheme four is that a first five-revolute-pair unit is connected with a second five-revolute-pair unit, the second five-revolute-pair unit is connected with a third five-revolute-pair unit and the third five-revolute-pair unit is connected with the first five-revolute-pair unit. The scheme five is that a first umbrella-shaped module is connected with a second umbrella-shaped module, the second umbrella-shaped module is connected with a third umbrella-shaped module and the third umbrella-shaped module is connected with the first umbrella-shaped module. The space foldable mechanism derived from the five-revolute-pair units is used for spacecrafts.

The invention discloses a vehicle-mounted emission testing device and a testing method thereof. The vehicle-mounted emission testing device comprises an exhaust mass measurement unit, a pollutant sampling and analyzing unit, a master control unit, a fuel consumption measurement unit and a road load simulation loading device which are arranged on a tested sample vehicle. The exhaust mass measurement unit, the pollutant sampling and analyzing unit, the fuel consumption measurement unit and the road load simulation loading device are all connected with the master control unit. Compared with existing devices and methods in the industry, the vehicle-mounted emission testing device and the testing method can rapidly and efficiently perform vehicle emission testing without depending on relevant information of an electronic control unit of the tested vehicle, and accordingly obtain the emission performance condition of the tested vehicle.