403results about How to "Improve patency" patented technology

A surgical staple for use in creating an everted anastomosis of at least two anatomical structures includes a bendable staple body. At least two evening elements protrude from the staple body. Spacing elements and a penetrating element also are provided. In use, the evening elements and spacing elements are apposed, and inner layers of the anatomical structures are held together to form an evened anastomosis. The evening platforms are disposed on an outer radius of the closed staple, and the penetrating element is disposed on a different, inner radius, to ensure that the penetrating element is excluded from the lumen of the anastomosis. Embodiments of the invention substantially ensure intima-to-intima approximation completely circumferentially at the anastomotic site, with no portion of cut tissue edges, suture or staple exposed to the lumen of the anastomosis. Cut tissue edges, as well as the staple, are completely extra-lumenal. Related methods provide similar advantages.

The invention provides a porous scaffold for tissue engineering which allows easy cell engraftment and cell culture and thus enables stable organization and an artificial blood vessel which exhibits high patency rate even if the inner diameter is small. The scaffold for tissue engineering is made of thermoplastic resin which forms a porous three-dimensional network structure having communication property, wherein the porous three-dimensional network structure has an average pore diameter of from 100 to 650 μm and an apparent density of from 0.01 to 0.5 g/cm³. The artificial blood vessel is composed of this scaffold.

The invention provides a cuff which allows easy infiltration of cells from living subcutaneous tissues, easy engraftment of cells, and neovascularization of capillary vessels so as to obtain robust bonding with subcutaneous tissues and, as a result, ensures separation of a wounded portion from the outside, thereby blocking exacerbation factors such as bacterial infection on healing and inhibiting progression of downgrowth. That is, the invention provides a cuff with none or little infection trouble such as tunnel infection. The cuff comprises a porous three-dimensional network structure which is made of thermoplastic resin or thermosetting resin and has communication property, wherein the porous three-dimensional network structure has an average pore diameter of from 100 to 1000 μm and apparent density of from 0.01 to 0.5 g/cm³.

The invention provides a biological implant covering member which allows easy infiltration of cells from living subcutaneous tissues, easy engraftment of cells, and organization, thereby obtaining robust bonding with native tissues and therefore protecting a living body from adverse effect which may occur due to the insertion of a biological implantation member into the living body. The biological implant covering member comprises a porous three-dimensional network structure which is made of thermoplastic resin or thermosetting resin and has communication property, wherein the porous three-dimensional network structure has an average pore diameter of from 100 to 1000 μm and apparent density of from 0.01 to 0.5 g/cm³.

The invention discloses a highway rear-end collision prevention early warning system which relates to the technical field of traffic safety facilities. The highway rear-end collision prevention early warning system comprises control terminals (K) which are arranged at an entrance and an exit; monitoring subnetworks are arranged at N monitoring points of a highway full-range two-way lane, and the long-distance wireless communication between each monitoring subnetwork and the control terminal (W) is realized through a GSM/GPRS (Global System for Mobile Communications/General Packet Radio Service) wireless communication module (W); and each monitoring subnetwork mainly comprises a plurality of ultrasonic probes, a multi-machine communication interface circuit and an acousto-optic warning board (P). The invention has low expense and convenient construction, can accurately and reliably monitor and compute the vehicle speed, the lane and the front-and-rear vehicle distance of driving vehicles, can adjust the early warning threshold values of the safe vehicle interval and the vehicle speed according to the change of visibility, can early warn rear-end collision, overspeed, low speed, traffic jams of a forward road and the like, improves the smoothness ratio of the road, ensures the driving safety and is suitable for highway rear-end collision prevention early warning.

The invention relates to a method and a device for protecting data on the basis of AEC real-time encryption. The method comprises the following steps: generating an initial key by a true random number generator in a system, storing the generated initial key into a nonvolatile memory, and then generating each-round expandable sub-keys by the initial key in the nonvolatile memory. The invention has the following advantages: in the whole process, only commands for starting the true random number generator is controlled by a processor, the other procedures are realized by a hardware circuit, the processor and software are prohibited from participation, and bus transaction is not involved, thereby ensuring the safety of the key and preventing the key from being revealed; a sub-key expansion RAM is lead in by adopting AES crypto-algorithm encryption, an address automatically adds 1 or subtracts 1 according to each-round encryption/decryption operation, thereby solving the system speed bottleneck problem caused by too long elapsed time for expanding the key in the AES algorithm realized by the traditional method; and a buffer is added between the processor and the channel of the AES algorithm, thus improving the encrypting/decrypting speed, and realizing programme operating on an encrypted memorizer in real time.

The invention relates to the field of intelligent transportation technology, and particularly relates to the vehicle accident management system and method. The method includes the following contents:when a traffic accident occurs in S1, the vehicle terminal acquires the real time position of the vehicle and the image information inside and outside the vehicle through the emergency button, and thereal time position and image are obtained to send to the management server. The S2 management server analyzes the traffic accident information according to the real time location and the image information.The S3 management server sends the warning information to the vehicle in the road leading to the accident site according to the traffic accident information.The system includes the vehicle mounted terminal and management that communicated with each other. The vehicle terminal includes a button module, a positioning module, a camera module, a control module and a prompt module, and managementserver includes a processing module and a database module. The device can obtain the image information of the accident scene through the emergency button, save the evidence of accident scene in time,and prompt the vehicle in the road to make the way, so that the rescue vehicle can reach the accident scene more smoothly and perform timely rescue.

The invention discloses an induction type give-way control system for primary and secondary road junctions under poor sight distance conditions. The induction type give-way control system comprises magnetic induction detection coils, a data transmission device, a control system center and crystal diode signs. The magnetic induction detection coils are used for detecting the current speeds, vehicle lengths and moments of vehicles at all entrance lanes. The data transmission device is used for transmitting data to the control system center in a wireless broadcasting mode and sending instructions generated by the control system center to the crystal diode signs. The control system center is used for calculating the time when the vehicles at the primary and secondary road junctions reach the points where conflicts may happen and generating corresponding instructions. The crystal diode signs are used for prompting the vehicles going to enter the road junctions along secondary roads to give way or pass through according to the instructions sent by the control system center. The invention further provides an induction type give-way control method for primary and secondary road junctions under poor sight distance conditions. Induction type give-way signs are arranged at the primary and secondary road junctions, driving behaviors of drivers of vehicles on the secondary roads are helped and induced, traffic conflicts of the vehicles on the primary and secondary road junctions are reduced, and driving safety at no-signaled road junctions is improved.

The invention discloses an actor-critic algorithm-based distributed traffic signal lamp joint control method. The method includes the steps of: conducting mathematical modeling on a network composed of multiple agents; modeling a Markov decision process of a single traffic intersection in a distributed traffic signal lamp control system, and defining a state set, an action set and a single-step reward value; constructing a multi-agent joint control mode, and establishing communication connection between the agents to exchange respective information; establishing a flexible dominant actor-critic algorithm, adding a strategy entropy of a next state into the single-step reward value, constructing a value function, and adding a dominant function; based on the flexible dominant actor-critic algorithm, taking the purpose of minimizing the average waiting time of vehicles, adopting a joint flexible dominant actor-critic algorithm by the agents of each traffic intersection for learning and control of signal lamps. According to the invention, through cooperative control of signal lamps at different traffic intersections, the overall road smoothness of the traffic network is improved.

The invention discloses a city safety island based on pedestrian and non-motor vehicle separation, which comprises an island body, wherein the island body is in a triangular shape, the middle part of the island body is provided with a pedestrian waiting area in the island, both sides of the pedestrian waiting area in the island are provided with non-motor vehicle waiting areas in the island, the pedestrian waiting area is connected with a pedestrian street through a street and island crosswalk, the pedestrian waiting area is connected with the adjacent island body through a crosswalk between islands, the non-motor vehicle waiting area in the island is connected with the pedestrian street through a street and island non-motor vehicle crossing, and the non-motor vehicle waiting area in the island is connected with the adjacent island body through a non-motor vehicle crossing between the islands. The city safety island disclosed by the invention can effectively improve the safety and the comfort of pedestrians crossing the street, improve the crossing efficiency of pedestrians and non-motor vehicles and reduce the incidence of traffic accidents in street crossing, and road environment and city appearance are beautified.

An apparatus for seeding material in a scaffold member capable of entrapping such seeding material therein is provided. The apparatus may include a chamber having an interior and capable of maintaining a negative pressure and capable of enclosing the scaffold member therein, and a support member for rotating the scaffold member disposed within the interior of the chamber and for introducing the seeding material into the chamber. At least a portion of rotating the scaffold member occurs simultaneously with applying the negative pressure condition to the scaffold member. The seeding material may be passed from the interior of the scaffold member to the exterior of the scaffold member in response to the application of negative pressure such that at least of portion of the seeding material is entrapped in the scaffold member.

The invention relates to a smart city system based on smart lamp poles, which comprises a plurality of smart lamp poles, an edge computing center, a smart city computing processing center and relateddepartment receiving equipment, the edge computing center is connected with the plurality of intelligent lamp poles, acquires data from the intelligent lamp poles and processes the acquired data; thesmart city computing and processing center is in signal connection with the edge computing center, and the edge computing center uploads the data to the smart city computing and processing center according to a preset strategy; the related department receiving device is connected to the smart city computing and processing center and acquires data from the smart city computing and processing center. Computing centers by setting edge, data of part of the smart lamp poles are aggregated by the edge computing centers, and then the plurality of edge computing centers are connected to the smart citydata computing center, so that distributed data processing is realized, the plurality of edge computing centers share the computing power of the smart city data computing center, and the computing power requirement of the smart city data computing center is correspondingly reduced.

The invention discloses a big data transmission load balancing method and device of a market supervision block chain. The method comprises the following steps: importing a data transmission queue among multiple block chain nodes of the market supervision block chain, and computing the transmission capacity of the data transmission queue, self-adaptively judging whether the block chain node locatedby the data transmission queue has the capacity of bear the big data transmission task by using the transmission capacity value. The waste of the load resource of an idle node for the data transmission is avoided, the time consumed for data block chain writing-in, transmission and synchronization is effectively reduced, the robustness of the block chain system of the market supervision is improved, the transmission efficiency is accelerated, and the smoothness and the availability of each block chain node can be obviously optimized.

The embodiment of the invention provides a method for communicating with an OBU and an RSU. The method comprises the steps of obtaining multiple OBU signals sent by the OBU, determining the OBU coordinates and acquiring time corresponding to the multiple OBU signals, determining the OBU speed and OBU coordinates corresponding to the OBU according to the OBU coordinates and acquiring time corresponding to the multiple OBU signals, and carrying on transactions with the OBU if the OBU coordinates corresponding to the OBU are legal and the OBU speed and OBU coordinates corresponding to the OBU meet preset transaction communication conditions. According to the method for communicating with the OBU and the RSU, the speed and the current position of a motor vehicle serve as the basis for establishing a transaction communication link with the OBU, the problems of car flowing and byway interference can be effectively solved, and overall traffic efficiency of an ETC lane is improved.

The invention discloses a welding method and clamp of a Venturi tube with a bend. The welding method comprises the steps of: respectively clamping and positioning an inlet section and an outlet section of a Venturi tube with a transition section for welding; sequentially spot-welding all spots on a butt seam corresponding to arcs of 0 degree->180 degrees->270 degrees->450 degrees->495 degrees->675 degrees; carrying out sealing welding along the clockwise rotation from the starting point of the butt seam, and after welding the butt seam for one circle, starting arc extinguishing in a place exceeding the starting point by 15 degrees, so as to complete the sealing welding; and selecting a point, between which and the starting point the arc angle is 180 degrees, as another starting point to perform welding, and after welding for one circle, starting the arc extinguishing in a place exceeding the starting point by 15 degrees, so as to complete the welding. The clamp comprises a center shaft with a bend, wherein an inlet inner sleeve and an outlet inner sleeve are sleeved on the center shaft, the outer edge surfaces of the inner sleeves are clung to the inner wall of the Venturi tube, and protection sleeves are respectively arranged on two ends of the inner sleeves, and clamping flanges are respectively arranged on opening ends of an inlet section and an outlet section and are fixed through nuts. According to the welding method and the clamp disclosed by the invention, the Venturi tube with a wall thickness of 1-3mm and the bend of 3-8 degrees can be welded.

The invention relates to a method and a system for updating multi-source software. The system comprises the following steps that: S1: matching and setting a plurality of network servers for a client side; S2: on the client side, deploying a plurality of network server access addresses provided with priority identification, and independently deploying a plurality of software update sources with the priority identification on the plurality of network servers; and S3: according to the priority identification of the plurality of network server access addresses, accessing the corresponding network server by the client side, and updating software through the priority identification of the plurality of software update sources on the corresponding network servers. By use of the method, a risk that risk update is interrupted due to the crash of the network server can be avoided, the client side is guaranteed to be normally updated, user experience and efficiency can be improved, and the maintenance cost of the client side is lowered. Meanwhile, updated data can be guaranteed to be smoothly read, production efficiency is improved, and the risk of unsmooth communication is lowered.

The invention discloses a harmless fixed bed thermolysis system for zinc and cadmium super accumulator plant. The dried zinc and cadmium supper accumulator plant is in the thermolysis in the thermolysis furnace, the thermolysis gas produced in the thermolysis is treated again and is burnt by the burning comprehensive utilization system, the hot smoke from the burning comprehensive utilization system is used partly for drying the zinc and cadmium super accumulator plant and partly for supplying the heat for the thermolysis furnace, the thermolysis temperature depends on the heat released from the hot smoke produced in the burning of fuel oil, part hot smoke from the burning comprehensive utilization system and the thermolysis and burning reaction of the zinc and cadmium supper accumulator plant in the thermolysis furnace, after the hot smoke from the burning comprehensive utilization system is used for drying zinc and cadmium super accumulator plant, the smoke is purified by the adsorption of the activated carbon and discharged. The thermolysis is adopted, over 90% of cadmium and over 99% of zinc can be fixed in the thermolysis coke, the harmless treatment of the zinc and cadmium super accumulator plant and the energy comprehensive utilization.

The invention provides a hydrodynamic pressure suspension double-flow pump, relating to an impeller ultra-small pump which has no external mechanism axis and is driven magnetically. The pump comprises two mutually separate flowing channels; each flowing channel consists of an inlet, an impeller, a pressure water chamber and an outlet; and the geometrical parameters of the flowing channels are the same or different; a stator of the pump is embedded in a pump shell, a permanent magnet is embedded in a rotor; and the stator and the permanent magnet are arranged opposite along a radial direction; a radial gap is formed between the internal surface of the pump shell and the external surface of the rotor, so that liquid hydrodynamic support for restricting axial movement is formed during normal operation of the pump; an axial gap is formed between the front cover plate of each impeller and the corresponding pump cover, so that liquid hydrodynamic support for restricting rotor axial movement is formed during the normal operation of the pump. In such a way, the rotor can be suspended in the pump cavity during normal operation. The pump provided by the invention can be used for meeting double-flow use requirement of different flows and pressures, and good flowing condition can be effectively and favorably formed in the internal cavity of the pump shell, and moreover, the operation reliability of the pump can be improved.

The invention discloses an energy-saving type storage house environment index regulating and controlling all-in-one machine. The all-in-one machine comprises an all-in-one machine body. The all-in-one machine body comprises a front protection plate, a back protection plate, a left protection plate, a right protection plate and a frame. A dehumidifying module and a draught fan module are installed on the middle lower portion of the all-in-one machine body, an outlet of a draught fan air flue of the draught fan module is provided with a sterilization module and an anion purifying module, a water tank is installed below the dehumidifying module, the topmost portion of the all-in-one machine body is provided with a humidifying module, a draught fan is installed above the humidifying module, an intelligent control system is installed inside the all-in-one machine body, and during the operating control of a compressor used for achieving the refrigerating, heating and dehumidifying functions, energy consumption is reduced through the frequency conversion technology. An evaporator used for achieving the refrigerating, heating and dehumidifying functions and a copper pipe of a condenser are of an internal thread structure, and therefore the heat exchanging efficiency is improved.

The invention belongs to the technical field of cache management, and discloses a distribute-cache management system and methods. The distributed cache management system includes an index establishment module, a data processing module, a storage control module, a security strategy module, a full-text word segment searching module, a picture and web server separation module and an independent-research/development framework extension module. According to the system, pressure of a database is reduced, time of requesting data by a user can be effectively reduced, response speed and load balancingcapability of a server can be improved, and thus experience of the user and smoothness of merchant marketing strategy laying-out can be improved; and a merchant utilizes excellent characteristics of aplatform better to implement a series of activities of marketing, planning, promotion and the like for products to realize a high commercial conversion rate, the user utilizes high support capabilityof the platform better to be close to the merchant and buy a product which is suitable for the same, and thus two-end profiting is enabled to be realized by communication of a near-zero distance between the merchant and the user.

The invention discloses a manual assembly line layout for automobile tires, belonging to the field of automobile tire assembly. The manual assembly line for the tires comprises more than two assembly lines, wherein each assembly line comprises a dismantling and assembling machine, an aerator, a balancing machine, a correction roller machine which are arranged in parallel along the Y-axis direction, and each assembly line is perpendicular to an assembly type part loading roller machine and an assembly type part unloading roller machine which are arranged along the X-axis direction. The manual assembly line layout has the advantages that the scattered part loading roller machines in the prior art are assembled into the part loading roller machine, the scattered part unloading roller machines in the prior art are assembled into the part unloading roller, the assembly type part loading roller machine and the assembly type part unloading roller machine are driven through a motor for transmission, the transmission spacing is carried out through an optoelectronic switch, and therefore, the convenience of manual assembly is increased, the production efficiency of the assembly line is improved, the operation region of a forklift is reduced, operating personnel are not needed in the production process, the cross operation of the forklift in the production process is eliminated, and the fluency of tire line physical distribution and the operation safety are increased. The length of equipment stations is shortened; and the effective usable areas of plants are increased.

The invention provides a household screen window decontaminating device combining clockwise and anticlockwise circumferential brushing and negative pressure suction, relates to the mechanical field and solves the problem that an arranged screen window is hardly cleaned. The household screen window decontaminating device combining clockwise and anticlockwise circumferential brushing and negative pressure suction comprises a fixed outer housing. A mounting inner shell is adhered to the fixed outer housing through a connecting block, a humidifying and deoiling mechanism is arranged between the fixed outer housing and the mounting inner shell, an opening is formed in the left end of the fixed outer housing, and a tail connecting protecting barrel is adhered to the right end of the fixed outerhousing. According to the household screen window decontaminating device combining clockwise and anticlockwise circumferential brushing and negative pressure suction, a control motor controls cleaninghairbrushes on the end parts of a driving rotating rod and a driven rotating rod to rotate to clean dust on the surface of the screen window, so that the condition that the local part of the screen window is not cleaned as a result of unidirectional rotation is avoided. The motor controls a telescopic protecting part to beat the screen window continuously to simulate the action of flickering thewindow with a finger, so that dust is scattered effectively.

The invention provides a conveyor of a blood flow guiding device. The conveyor comprises a pushing guide wire and a guiding spring of which one end is connected with the left end of the pushing guide wire, the pushing guide wire is further provided with a dual-developing mark, the dual-developing mark comprises a first developing mark which is in contact connection with the guide spring and a second developing mark, the first developing mark and the first developing mark are arranged in a spaced mode, the portion, between the first developing mark and the second developing mark, on the pushing guide wire is further provided with a friction cover, and the friction cover is made from a crylic acid polymer. Through the adoption of the crylic acid polymer to be the material of the friction cover which is a core part of the conveyor of the blood flow guiding device, good adhesive force of the material itself and the pushing guide wire is made use of, loosening, wrinkling or displacement caused by large force of friction generated when the flood flow guiding device is delivered by a microtube are prevented, and the delivery stability and smoothness of the blood flow guiding device in the matched microtube are improved.

The invention discloses a novel ultra-high-performance ECC bridge floor composite structure suitable for a steel bridge, and a construction method. The composite structure comprises a reinforcing steel bar shear resisting structure, a steel bridge panel layer arranged on the bottom layer, and an ultrahigh toughness cement composite material layer poured on the steel bridge panel layer. The reinforcing steel bar shear resisting structure is poured in the ultrahigh toughness cement-based material. A bituminous concrete wearing layer is paved on the ultrahigh toughness cement composite material layer. In the ultrahigh toughness cement-based composite material bridge floor combined structure, use of the ultrahigh toughness cement-based composite material pavement layer prevents longitudinal cracks, wavy displacement, partial upheaval, and comminuted cracks and other diseases generated by temperature and repeated action of vehicle load in conventional bituminous concrete pavement. The structure improves smooth property and comfortableness of vehicles, and has great help for improving endurance of the bridge structure.