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50results about How to "Promote rational distribution" patented technology

Real-time path planning method based on congestion control

The invention, which belongs to the technical field of path planning, discloses a real-time path planning method based on congestion control. The method comprises: planning initial routes for all vehicles in a road network and calculating alternative routes; establishing a road network road congestion model and carrying out updating continuously; generating a cluster head random seed and carryingout communication based on a cluster queue communication rule; subscribing vehicle dynamic data and real-time road traffic flow data via a vehicle-mounted self-organizing network; and predicting an upcoming congested road for a cluster head vehicle based on the congestion model, establishing a cluster queue and carrying out congestion message notification and prompting under the condition of congestion prediction, comparing residual travel time of a current path and an alternate path for the cluster head and the queue vehicle, and determining whether to update the route. Therefore, the trafficflow on the congested road can be divided effectively to realize reasonable distribution of the global traffic flow; and path planning of all vehicles in the road network can be performed simultaneously, thereby saving the computing load and improving the path planning efficiency.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Unmanned aerial vehicle emergency safety landing device for bridge detection

The invention discloses an unmanned aerial vehicle emergency safety landing device for bridge detection, and relates to the technical field of unmanned aerial vehicles. The unmanned aerial vehicle emergency safety landing device for the bridge detection comprises an airframe body. A controller and a pressure sensor are arranged on the airframe. A power supply is arranged in the airframe. A connecting rod is arranged at the bottom of the airframe. A supporting seat is arranged in a first shell body. A motor is arranged on the supporting seat. A gear is arranged on an output end of the motor. Arack is arranged on one side of the gear. A first through hole is formed in the bottom end of the first shell body. A second through hole is formed in the top wall of a second shell body. A pressing plate is arranged at the bottom end of the rack. A connecting ring is arranged on the pressing plate. A groove is formed in the outer wall of the second shell body. A supporting bar is arranged in thegroove. A circular hole is formed in an adjusting rod. A notch is formed in the bottom of the second shell body. A supporting plate is arranged at the bottom end of the adjusting rod. A buffer part isarranged at the bottom of the supporting plate. The unmanned aerial vehicle emergency safety landing device for the bridge detection has the beneficial effect that the unmanned aerial vehicle emergency safety landing device can safely descend to a water surface, and the unmanned aerial vehicle can be effectively protected when the unmanned aerial vehicle detects the failure of a bridge.
Owner:CHONGQING THREE GORGES UNIV

Method for judging position of cohesive zone of blast furnace and position of cohesive zone of blast furnace

The invention relates to a method for judging a position of a cohesive zone of a blast furnace and the position of the cohesive zone of the blast furnace. The method is used for judging the position of the cohesive zone of the large-scale blast furnace of which the volume is 4000 to 5000 m<3>; a flat cold plate structure is adopted by a furnace body of the blast furnace; the furnace body totally comprises 53 layers of flat cold plates; a furnace bosh of the blast furnace is in 14th to 20th layers; the method comprises the judging steps of (I) measuring a thermal load valve of each part, and measuring a thermal load valve of the upper part of the furnace body; (II) comparing a ratio of the thermal load values of all parts according to the thermal load values of all the parts, wherein the thermal load value of a furnace bosh area during normal production of the large-scale blast furnace is (450 to 550)*10MJ / h, the ratio of the thermal load value of the furnace bosh area occupies 4.5% to 5,5% of the thermal load of the whole blast furnace, and the thermal load ratio of each flat cold plate layer is lowest; (III) judging that the position of the cohesive zone is in the furnace bosh. According to the method for judging the position of the cohesive zone of the blast furnace, disclosed by the invention, the position of the cohesive zone of the blast furnace during normal production can be clearly found; the temperature of the cohesive zone is controlled to be 50 to 60 DEG C after the position of the cohesive zone is determined, and a furnace wall can be prevented from getting thick.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

Method and device for determining duplicate copy placement nodes on basis of hadoop

The invention discloses a method, a device and equipment for determining duplicate copy placement nodes on the basis of hadoop and a computer readable storage medium. The method includes determining target rack servers according to duplicate copy types of target duplicate copies; selecting nodes for to-be-placed duplicate copies from the target rack servers and forming clusters of the nodes for the to-be-placed duplicate copies; selecting nodes with working connection smaller than connection thresholds from the clusters of the nodes for the to-be-placed duplicate copies and determining nodes with the minimum real-time load from the nodes with the working connection smaller than the connection thresholds. The determined nodes with the minimum real-time load are used as nodes for placing thetarget duplicate copies. According to the scheme, the method, the device, the equipment and the computer readable storage medium have the advantages that the real-time load of the nodes and HDFS (hadoop distributed file system) working process numbers need to be simultaneously considered when the nodes for placing the duplicate copies are about to be selected, accordingly, reasonable distributionof the duplicate copies can be effectively improved, and optimized duplicate copy placement strategies are definite in purposefulness as compared with default duplicate copy placement strategies; thenodes with the minimum real-time load are selected to the greatest extent, the duplicate copies can be prevented from being stored in high-load nodes, and accordingly the duplicate copy transmissiontime can be shortened.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

Refined sugar decolorization treatment device and decolorization, backwashing, regeneration and cleaning process

The invention discloses a refined sugar decolorization treatment device and a decolorization, backwashing, regeneration and cleaning process. An operation system comprises a syrup pump, a decolorization sugar liquid pump, an ion exchange bed group, a dilute sugar liquid tank, a concentrated sugar liquid tank and a decolorized sugar liquid tank. A regeneration system and a reverse regeneration system are communicated with a first pipeline and a second pipeline through pneumatic ball valves and are used for regenerating the ion exchange bed group. The regeneration system comprises a heat exchanger, a heat preservation water tank, a regeneration water pump, a salt dissolving tank, a salt liquid pump, a bag type filter, a desalted water tank, an alkali discharging pump, an alkali storage tank,an alkali metering tank and an alkali metering pump. The reverse regeneration system comprises an ejector, an acid metering box, an acid storage tank and an acid discharging pump which are sequentially communicated. The device has the advantages of small occupied area, no need of external cleaning equipment, good treatment effect, stable removal rate and the like.
Owner:德兰梅勒(北京)分离技术有限公司

Fiber reinforced composite material for dental root canal post and preparation method thereof

The invention relates to a poly(p-phenylene benzobisoxazole) (PBO) fiber reinforced composite material for a dental root canal post and a preparation method thereof. The fiber reinforced composite material for the dental root canal post comprises a surface modified PBO reinforced fiber which is used as a reinforcing phase and a nanometer modified toughening resin which is used as a matrix. The composite material is compounded by mixing the PBO reinforced fiber with the toughening resin, wherein the PBO reinforced fiber adopts a 3D braided structure. According to the invention, a breakthrough is made to the design of unidirectional reinforcement with single-phase fibers in conventional fiber post structures, the high-performance PBO fiber and the 3D braided structure are introduced into a dental post material, so the flexural behavior of a conventional fiber post is improved, and good interfacial bonding force between the high-performance fiber and the resin matrix is guaranteed; and through adoption of the 3D braided structure, layering of the laminated composite material is effectively avoided, so excellent mechanical properties of the composite material in vertical, transverse and thickness directions are guaranteed.
Owner:NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV

Double w-shaped combustion chamber applicable to opposed injection

The invention provides a double w-shaped combustion chamber applicable to opposed injection. The double w-shaped combustion chamber applicable to the opposed injection is characterized in that a w-shaped pit is formed in the center position of each of an air feeding side combustion chamber and an air exhausting side combustion chamber, wherein injected fuel oil spray guide structures are arranged at incisions, adjacent to a first oil injector and a second oil injector at two sides, of the air feeding side combustion chamber and the air exhausting side combustion chamber; a certain included angle is formed between the injected fuel oil spray guide structures at two sides of the air feeding side combustion chamber and the air exhausting side combustion chamber and a center line of the combustion chambers; the injected fuel oil spray guide structures are staggered and can correspondingly guide two injected fuel oil sprays to two sides of the double w-shaped combustion chamber. The double w-shaped combustion chamber applicable to the opposed injection has the following advantages: the problem of injected fuel oil spray collision caused by the opposed injection of the double oil injectors can be effectively avoided; the air utilization rate of the injected fuel oil spray can be increased on the premise that the capacity and compression ratio of the combustion chamber are unchanged, thus the oil-air mixing effect of an opposed injection type combustion system can be improved, and as a result, the combustion performances of double opposed engines can be improved.
Owner:CHINA NORTH ENGINE INST TIANJIN

Method for shaping and planting fly-bird-type grapevine

The invention relates to a method for shaping and planting a fly-bird-type grapevine. The method specifically comprises the steps as follows: performing topping after a grape seeding planted on a field ridge is 1.2-1.3 m in length; reserving two buds after the top of the grape seeding germinates; enabling the two buds to grow into a main vine in the inverse direction and along iron wires under a post; reserving side vines on the two sides of the main vine, wherein the side vines form an included angle of 45-60 degrees with the horizontal direction; vertically inducing and planting the side vines on a first iron wire on a frame face and flatly pressing the side vines on a second iron wire; keeping a 15-25 cm homolateral distance between the side vines; realizing the fly-bird-type grapevine. The method can fully utilize the characteristics of human mechanics, avoids fatigue caused by head raising required by planar pergola operation and head lowering and stoop required by espalier operation, lowers labor intensity, improves working efficiency, is convenient and quick to operate, remarkably reduces consumption of the iron wires, saves cost, provides large frame face space, prompts reasonable distribution of the vines, ensures good ventilation and lighting, simplifies the grapevine, facilitates pruning in winter, and is suitable for grape varieties requiring medium-short tip pruning.
Owner:ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS

An emergency safety landing device for bridge detection UAV

The invention discloses an emergency safety landing device for a bridge detection unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. An emergency safety landing device for a bridge detection UAV, comprising a body, a controller and a pressure sensor are arranged on the body, a power supply is arranged inside the body, a connecting rod is arranged at the bottom of the body, a support seat is arranged inside the first housing, and a motor is arranged on the support seat , a gear is set on the output shaft of the motor, a rack is set on one side of the gear, a first through hole is set on the bottom end of the first housing, a second through hole is set on the top wall of the second shell, a pressing plate is set on the bottom end of the rack, and the pressing plate A connecting ring is provided, a groove is provided on the outer wall of the second housing, a support bar is provided in the groove, a round hole is provided on the adjusting rod, a gap is provided at the bottom of the second housing, a supporting plate is provided at the bottom of the adjusting rod, and a buffer is provided at the bottom of the supporting board. The beneficial effect of the present invention is that: the present invention can safely land on the water surface when the UAV detects a bridge failure, thereby effectively protecting the UAV.
Owner:CHONGQING THREE GORGES UNIV

Application of stem cell-derived microvesicles in preparation of preparation for repairing scars

The invention provides application of stem cell-derived microvesicles in preparation of a preparation for repairing scars, and relates to the technical field of scar skin repair. In the invention, theextracellular vesicles derived from the mesenchymal stem cells obviously inhibit the expression of collagen III, the collagen III in the treatment group of the high-concentration microvesicles and the low-concentration microvesicles is obviously lower than that in the PBS group, and the expression of collagen I also presents a decreasing trend; both the high-concentration microvesicles and the low-concentration microvesicles can promote reasonable distribution of a skin structure, specifically, the structure of collagen is more reasonable, and accessory structures are remarkably increased; therefore, the stem cell-derived microvesicles have a scar repairing effect, the low-concentration microvesicles and the high-concentration microvesicles can promote the repairing effect of scar skin, the scar area of the repaired high-concentration microvesicles is smaller than the treatment of the low-concentration microvesicles, the treatment effect is remarkable, and the stem cell-derived microvesicles can be used for preparing preparations for repairing scars.
Owner:AFFILIATED HOSPITAL OF JINING MEDICAL UNIV

A Real-time Path Planning Method Based on Congestion Control

The invention discloses a real-time path planning method based on congestion control, which belongs to the technical field of path planning. The planning steps of the present invention include: planning initial routes for all vehicles in the road network, and calculating alternative routes; establishing a road network road congestion model, and continuously updating; generating random seeds for cluster heads, and communicating according to cluster queue communication rules; Vehicle nodes subscribe to vehicle dynamics and road real-time traffic flow data through the vehicle ad hoc network; use the congestion model to predict the congested streets that the cluster head vehicles will encounter, and if it is predicted that they will encounter congestion, a cluster queue will be established to notify the congestion message. The cluster head and the queuing vehicles compare the remaining travel time of the current route and the alternative route to determine whether the route needs to be updated. The invention can effectively divert the traffic flow of the congested street, and is beneficial to the rational distribution of the global traffic flow; it can simultaneously plan the paths of all the vehicles in the road network, save the amount of calculation, and improve the efficiency of path planning.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Efficient sewage treatment pond capable of adjusting stockpiling space

The invention discloses an efficient sewage treatment pond capable of adjusting stockpiling space. The efficient sewage treatment pond comprises an auxiliary road located at the top of an earth surface and a treatment pond body located at the bottom of the earth surface, wherein the auxiliary road is arranged at the top of the treatment pond body, a protective fence is arranged at the top of the auxiliary road and close to one side of the treatment pond body, the treatment pond body is of a concave cavity structure, heat preservation layers are arranged at the bottom and the side wall of the inner side of the treatment pond body, a heating layer is arranged in the middle of the heat preservation layer located on the side wall of the inner side of the treatment tank body, a floor-heating air pipe is arranged on the inner side of the heating layer, the upper end of the floor-heating air pipe sequentially penetrates through the heating layer and the treatment pond body and extends to the outer side of the treatment pond body, a pipe protection sleeve is arranged between the floor-heating air pipe and the heating layer, and a first base, a bottom layer matrix and a plurality of second bases are arranged at the bottoms of the inner sides of the heat preservation layers. The efficient sewage treatment pond has the beneficial effects that sewage purification effect is improved and sewage treatment is accelerated.
Owner:上海新濯水污染处理有限公司
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