123results about How to "Increase update rate" patented technology

A method of and computer-readable medium containing instructions for high accuracy, reliable position determination. A high precision GPS-RTK system using the present novel techniques is initialized instantaneously or near instantaneously. To improve the computational efficiency and to improve the reliability of the procedure, advances in data functional and stochastic modeling, validation criteria, adaptation and system design were achieved. A position estimate using an integrated method is determined. Ambiguity resolution of the position estinate is enhanced by applying a quality control procedure using derived validation criteria. A second position estimate based on the enhanced ambiguity resolution is derived.

The invention relates to a virtual desktop transmission device and method. The virtual desktop transmission device comprises a client and a virtual desktop server, wherein a response server is also arranged between the client and the virtual desktop server; the response server is used for realizing the load balancing of requests and the buffer of virtual desktop frames. The method provided by the invention comprises the following steps: the client asynchronously sends requests to the response server; the response server sends the requests to the virtual desktop server through a load balancing algorithm; the virtual desktop server sends the virtual desktop frames to the response server; the response server stores the virtual desktop frames in a buffer; and the virtual desktop frames is sent to the client according to the bandwidth conditions of the client. By using the device and method provided by the invention, the transmission performance can be improved, the utilization of resources can be improved and the cost can be reduced.

The invention provides a real-time full-view monitoring method and device based on multi-camera rotating scanning. 360-degree panorama environment full-view presenting is achieved, and ceaseless-renewal panoramic pictures are achieved. The method comprises the steps that first, initialization is carried out; second, each camera device collects one frame of picture, pixel intensity compensation is carried out, the sampling result of each device is stored in the corresponding sampling picture sequence of the device, and meanwhile information of the angle where a rotating cloud table is placed during current sampling is recorded; an initial picture of each picture sequence is displayed, according to the relative mounting positions of cameras, the position on a 360-degree panoramic picture of the initial frames in each group is determined; third, a picture sequence is selected, a previous frame A and a current frame B are extracted, feature points in an ROI zone are detected and described, feature points extracted in the frame A and the frame B are matched, a non-maximum value in feature detecting is adjusted according to the matching result to restrain a threshold value; fourth, a homography matrix is computed according to the matching result.

The invention provides equipment and a method for treating nondegradable wastewater by utilizing catalytic oxidation of ozone. The equipment comprises a feeding system, an ozone catalytic reaction tower and a spray absorbing tower; the feeding system comprises a wastewater pH regulation device, a wastewater feeding pipeline, a hydrogen peroxide aqueous solution feeding pipeline, an ozone feeding pipeline and a pH regulator feeding pipeline; the wastewater pH regulation device is communicated with the wastewater feeding pipeline and the pH regulator feeding pipeline respectively; the ozone feeding pipeline is communicated with the wastewater feeding pipeline; the ozone catalytic reaction tower is communicated with the wastewater feeding pipeline and the hydrogen peroxide aqueous solution feeding pipeline respectively so that wastewater undergoes once catalytic reaction in the presence of a first catalyst to generate a liquid flow and an ozone tail gas flow which are subjected to initial treatment; and the spray absorbing tower is communicated with a catalytic reaction system, is used for spraying at least one part of the liquid flow which is subjected to the initial treatment, and is contacted with the ozone tail gas flow in the presence of a second catalyst to undergo second catalytic reaction.

A method for detecting video moving object according to scene change characteristic includes the steps of: (1) proceeding characteristic point detection, background characteristic point parameter calculation and background model pixel point parameter calculation according to training image, (2) in moving object detection, for current detecting image, calculating movement characteristic point according to the background characteristic point parameter and current detecting image characteristic point; (3) classifying the pixel point parameter in the background model according to the movement characteristic point; (4) calculating renewal rate of the background model pixel point parameter according to classification result; (5) finally using background subtraction method to obtain moving object position and shape according to current image and the background model pixel point parameter, meanwhile, according to the calculated background model pixel point renewal rate to update the background model pixel point parameter. The invention can more accurately detect moving object, and obtain the position and the shape of the moving object.

The invention discloses an uneven humid efficient phase changing coating preparation and a gravity assisted heat pipe device. The gravity assisted heat pipe device comprises a pipe body with two sealed ends; liquid working medium is poured into the pipe body; the upper portion of the pipe body is a condensation section, and the lower portion of the pipe body is an evaporation section; the inner top wall of the condensation section is a zigzag-shaped structure face; the uneven humid coating covers the inner side wall of the condensation section, the zigzag-shaped structure face and the inner bottom face of the evaporation section; the uneven humid coating comprises dewatering areas and hydrophilic areas; the uneven humid coating covering the zigzag-shaped structure face of the condensation section is of the structure that the straight stripes of the dewatering areas and the hydrophilic areas are distributed alternately; and the direction of the straight stripes is perpendicular to the zigzag grooves of the zigzag-shaped structure face. The gravity assisted heat pipe device can improve heat flux of an evaporation process and a condensation process remarkably. According to gravity assisted heat pipe device, depending on the operation rules of gravity assisted heat pipes, drawbacks existing in current gravity assisted heat pipes are overcome; working medium cycling speed is improved; and heat transfer load of the heat pipes is strengthened.

A crowdfunding website project recommendation method based on a project tag and a graphical relationship comprises the following steps: step 1) tree-shaped tag based recommendation: dividing attributes of a crowdfunding website project, modeling the crowdfunding website project, describing a project tag by using a tree, abstracting correlations between user behavior and the project tag into a private tag tree of user, and storing a tree-shaped tag into a document-type database CouchDB; step 2) graphical relationship based recommendation: storing graphical relationship into graph database Neo4j; and step 3) performing weighting summation averaging on two sets of projects in the step 1) and the step 2), and finally obtaining k2 recommended project comprehensive results and asynchronously transmitting the results to the user. The crowdfunding website project recommendation method based on the project tag and the graphical relationship provided by the present invention solves the problems of low recommendation efficiency and low precision and the like, which a conventional personal recommendation method is faced with when dealing with a relationship between project attribute, user behavior as well as user and project in the crowdfunding platform.

The invention aims to provide a method and device for strengthened ozone treatment of nitrobenzene waste water in a high gravity filed, belongs to the field of nitrobenzene organic waste water treatment, and solves the problem of low ozone utilization ratio of a conventional rotating packed bed in the ozonation technology application. The method comprises the following steps: exhaust gas generated by ozonidation-oxidation reaction in the rotating packed bed and waste water are introduced into a hypergravity-electrolysis unit reactor, ozone and oxygen in the exhaust gas in the hypergravity-electrolysis unit reactor are reduced into hydrogen peroxide through electrocatalytical reduction; the generated hydrogen peroxide, along with the waste water, enters the rotating packed bed again in a circulation manner to be subjected to ozonidation-oxidation reaction; ozone is catalyzed to generate hydroxyl free radicals due to the fact that the content of the generated hydrogen peroxide is in the ozone decomposition acceleration concentration range, therefore organic matters in the waste water are decomposed through mineralization; the problem of exhaust gas treatment is solved, the recycle of the exhaust gas resources can be realized, the ozone can be catalyzed, the oxydative degradation efficiency is improved, when the method is compared with a process with a treatment process without hypergravity electrolysis stage, the oxidation efficiency is improved by 50%, the water treatment cost is reduced by 30%.

The invention belongs to the technical field of mass transfer reaction equipment, and particularly relates to multistage cross-flow rotation packed bed mass transfer and reaction equipment, which is used for solving the problems that existing supergravity equipment is poor in gas phase mass transfer effect intensification, is low in gas treatment capability and the like. The multistage cross-flow rotation packed bed mass transfer and reaction equipment comprises a rotation bed shell, a rotary shaft, two or more than two high-speed rotation packed bed rotors and one or more than one static packed bed stator; the packed rotors and the packed stators are installed alternatively; the packed rotors are all centrally provided with liquid distributors connected with liquid intake pipes; the top of a shell of a rotation bed is connected with a gas exhaust pipe, and the bottom of the shell of the rotation bed is connected with a liquid outlet pipe and a gas inlet pipe. According to the invention, gases and liquids are in contact in a cross flow mode, so that the radial size of a packed layer can be reduced; flooding is difficult to generate; the multistage cross-flow rotation packed bed mass transfer and reaction equipment is especially suitable for treating the heat transfer, the mass transfer and the reaction process of a large amount of gases.

The invention relates to a method for rapid, high-efficiency and selective degradation of trace benzopyrene in water. The method comprises the following steps: cutting trace-benzopyrene-containing wastewater having undergone biochemical treatment into water films with a filling material in a catalytic ozonation reactor; allowing the water films to contact with ozone or ozonized air flowing along a reverse direction and to be dissolved; and selectively degrading trace benzopyrene in the wastewater under the preferential adsorption and catalytic oxidation coupling effects of a molecular imprinting filling material. According to the invention, molecular imprinting technology and catalytic ozonation technology are combined, and trace benzopyrene in the wastewater is rapidly, highly efficiently and selectively treated; the absorption rate of ozone is more than 90% in 10 min in the catalytic ozonation reactor, so the removal rate of trace benzopyrene is more than 99%. The method can be widely applied to deep and recycling treatment of a variety of sewage and wastewater containing benzopyrene.

The invention belongs to the technical field of mass transfer reaction equipment, and particularly relates to mass transfer and reaction equipment for a reverse airflow shearing and rotating packed bed which solves the problems of the existing ultragravity equipment in the aspect of air phase mass transfer. The mass transfer and reaction equipment comprises a rotating bed main body, an equipment bracket and a transmission device, wherein the rotating bed main body comprises an upper part and a lower part which are an air collection chamber and a main cavity; the main cavity is internally provided with a packing rotor capable of rotating at a high speed; the upper part of the main cavity is connected with an air inlet pipe; the bottom of the main cavity is connected with a drainage pipe; the center of the packing rotor is provided with a liquid distributor; the liquid distributor is connected with a liquid inlet pipe; the top of the air collection chamber is connected with an exhaust pipe; an opening in the top of the packing rotor is communicated with the air collection chamber. The mass transfer and reaction equipment has the beneficial effects that the shearing stress for fluid can be increased, more momentum is transferred to interior fluid by packing, the boundary layer separation of air liquid is promoted, the degree of turbulence is increased, and the update rate of air liquid interface is increased, and thus the purpose of strengthening the air phase mass transfer is achieved; the operation stability is improved, and the equipment is suitable for high throughput occasions; the air collection chamber effectively inhibits the influences on operation balance caused by entrainment and flooding.

The invention provides an intelligent network service identification method based on positive transfer learning, which can improve analysis efficiency and accuracy of network services. In the field of network data transmission, in network service identification and management methods, deep packet inspection (DPI) and dynamic flow inspection (DFI) have low network service identification rate, a feature library is not updated timely, the overall identification efficiency is low, and non-real time off-line detection and analysis cannot be realized. The network service is detected and identified by parallel detection of DPI and DFI rather than by common serial mode thereof in the prior art, so that identification efficiency of the network service is improved. The DPI judges service types by an identification technology of tagged word, and the feature library needs to be updated timely and rapidly, so that the DPI feature library is established and updated by the positive transfer learning. The network service which cannot be identified by DFI can be detected by a relevant flow detection module, so that the service identification efficiency of the overall system can be further improved.

Provided are a data storage method and device for a distributed database. The method comprises: a first node receiving a record insertion request, said request carrying a first record; the first node, according to a mapping relationship between a foreign key identifier and a storage node, determining a first storage node in which a first related record corresponding to the first record is located, wherein a primary key identifier of the first related record and the foreign key identifier of the first record are identical; the first node inserting the first record into a second node within the first storage node. The present method solves the technical problems in the prior art of low data insertion efficiency and slow updating speeds.

The invention discloses an extrusion method and die achieving the synergistic effect of ultrasonic vibration and uniform tensile stress. The extrusion die comprises a die body, a first ultrasonic vibration device and a second ultrasonic vibration device. The first ultrasonic vibration device and the second ultrasonic vibration device each mainly comprise an amplitude-change rod, a vibration transmission rod, a transducer, a signal line and an ultrasonic generator; through holes are symmetrically formed in the die body; the small ends of the amplitude-change rods of the first ultrasonic vibration device and the second ultrasonic vibration device communicate with a die runner through the through holes; and the amplitude-change rods extend into the through holes of the extrusion die in the mode of being perpendicular to flanges. Through the extrusion process that ultrasonic vibration is perpendicularly overlapped on a melt, the pressure action of pulse change acts on the melt, and the synergistic effect of ultrasonic vibration and uniform tensile stress is achieved. According to the extrusion method and die, the pressure fluctuation during extrusion of the plastic melt is reduced, the apparent viscosity of the melt is reduced, the compatibility of polymer blends is improved, the flow uniformity of materials is improved, and thus the combination property of a finished product is improved.

The invention relates to a low VOC (volatile organic compound) polyformaldehyde (POM) material and a preparation method thereof and belongs to the technical field of polyformaldehyde materials. The low VOC POM material comprises the following components in percentage by mass: 87-99% of POM resin or powder thereof, 0.1-1% of antioxidant, 0.1-1% of formaldehyde absorber, 0.1-1% of formic acid absorber and 0.6-10% of devolatilization agent. The prepared low VOC POM material has mechanical properties of general POM and also has extremely low VOC emission property.

The invention relates to an ultrasonic low frequency-high frequency coupled atomization biological reaction device. The device comprises a reactor tank system, a high-frequency ultrasonic atomization system and a low-frequency ultrasonic generation system, wherein the reactor tank system comprises a reactor tank (8) with a plurality of low-frequency ultrasonic vibrator bonding planes hierarchically arranged at different heights of the reactor tank (8); the low-frequency ultrasonic generation system comprises a plurality of low-frequency ultrasonic vibrators (11), and the low-frequency ultrasonic vibrators are fixed on the low-frequency ultrasonic vibrator bonding planes of the reactor tank (8) through a combination method of central bolts and gluing; and the high-frequency ultrasonic atomization system comprises a ultrasonic atomization cavity (1), wherein the ultrasonic atomization cavity is communicated with the reactor tank (8) through a droplet-flow center pipe (52), and a coupling of the ultrasonic low frequency-high frequency is realized. The device solves the amplification problem of the atomization reactor, and accelerates the update of material surface liquid films.

The embodiment of the invention provides a method and a device for updating data. The method comprises the steps of acquiring a data request of a target object from a client device through a server; determining the second update time corresponding to the current full data of the target object; determining whether the second update time is different from the first update time carrying in the data request; if so, acquiring updated target part data updated within the first update time of the current full data corresponding to the historical full data, the target path position of the target part data in the historical full data, and the target operation position corresponding to the target part data, and creating a request result to be fed back to the client device so as to perform the operation for the target part data as indicated by the target operation position by the client device under the path as indicated by the target path position of the locally stored historical full data as well as updating the historical full data into the current full data stored by the server. With the adoption of the method, the data updating rate can be increased.

The invention discloses a device and a process for preparing dimethyl carbonate. The device comprises a reactive distillation column and an extractive distillation column. A methyl alcohol inlet and a propylene carbonate inlet of the reactive distillation column are arranged on the side of the reactive distillation column. A column top outlet of the reactive distillation column is arranged at the top of the reactive distillation column, and a column bottom outlet of the reactive distillation column is arranged at the bottom of the reactive distillation column. A raw material inlet and an extraction agent inlet of the extractive distillation column are arranged on the side of the extractive distillation column. A column top outlet of the extractive distillation column is arranged at the top of the extractive distillation column, and a column bottom outlet of the extractive distillation column is arranged at the bottom of the extractive distillation column. The column top outlet of the reactive distillation column is connected with the raw material inlet of the extractive distillation column. The column top outlet of the extractive distillation column is connected with the methyl alcohol inlet of the reactive distillation column. The device and the process have the advantages that the process is simple and good in effect, operability is high, industrial production is easy to expand, and market prospect is wide.

The invention belongs to the technical field of chemical engineering, and more specifically relates to a method for reducing sulfur dioxide content in tail gas by using ionic liquid supergravity desulfurization technology. According to the method, caprolactam tetrabutylammonium bromide ionic liquid is used as an absorbent and is matched with a viscosity reducer for use, absorption liquid with a certain concentration is prepared, and tail gas and the absorption liquid are subjected to a supergravity desulfurization reaction in a rotating packed bed. Through the method provided by the invention,more than 99% of sulfur dioxide in flue gas of acid making devices can be removed, the emission concentration of sulfur dioxide is lower than 25mg / m < 3 >, and the method and a device provided by theinvention are simple, are convenient to operate, and can be used for industrial application.

The invention discloses a foreground extracting method suitable for a dynamic background, which comprises the following steps of storing an adjacent image, combining spatial texture information and temporal motion information of pixels, carrying out comparison to form a dynamic texture, extracting an ellipsoid stereoscopic space for describing the dynamic texture, and dividing the stereoscopic space into three orthogonal planes to respectively reflect space characteristics and time characteristics of the pixels; meanwhile, carrying out texture description on the three planes by using an LBP (Local Binary Pattern) descriptor and weighting and summing three texture characteristics to form an SLBP-AM descriptor; and finally, carrying out separation on a foreground and the background by establishing a background model for the SLBP-AM descriptor, and completing updating of the model. The foreground extracting method disclosed by the invention utilizes the spatial texture information, can overcome little disturbance in the background and also fuses the motion information, so that scenes which are rapidly and greatly changed have the same motion mode before and after the change, and thus, the updating speed of the background is improved.

The invention discloses an aerial image hybrid segmentation algorithm based on a novel Markov random field and region merging, and the algorithm comprises the following steps: S1, reading a to-be-segmented color image, and converting the to-be-segmented color image into a gray image; s2, performing coarse segmentation on the grayscale image; s3, performing multi-value connected domain informationstatistics; s4, according to the multi-value connected domain information, carrying out region smoothing on the grayscale image after coarse segmentation; and S5, according to the image after region smoothing, carrying out region merging. According to the invention, a novel Markov model with a variable unit of a regional level, regional edge information fused into a potential function and an iterative stop criterion is adopted to smooth a coarsely segmented image; the method can effectively improve the updating rate of the region label, adaptively controls the updating of the region label, andeffectively reduces the 'over-segmentation rate' and 'wrong segmentation rate' during the segmentation of an image with multi-spot noise, higher intra-domain heterogeneity and difficult gradient information extraction.

The invention discloses a silt thickness measurement method for a lead-zinc ore suction well based on parameter estimation, and the method comprises the following steps: collecting an echo signal in the suction well through a signal collecting device, denoising the collected signal, extracting features, and establishing a classifier for classification; using different mathematical models to estimate parameters of the corresponding signals, estimating an ultrasonic propagation time parameter, and calculating the thickness of the well bottom silt through using the ultrasonic propagation time parameter in combination with the propagation speed of an ultrasonic wave in water. The method is different from a threshold method used in the conventional ultrasonic measurement, can effectively avoidan interference item in an echo, and enables a measurement result to be more precise.

The invention discloses a multi-layer coating type essential oil organic acid compound feed additive and a preparation method and application thereof. The additive comprises core particles including plant essential oil and organic acid, a middle coating layer including casings and organic acid and a gastric bypass coating layer from interior to exterior. By means of the multi-layer coating technology, plant essential oil and organic acid are combined, the novel coating type feed additive is obtained through the reasonable ratio, the additive can effectively pass through gastric acid and is slowly released in an animal intestinal tract, and therefore effective ingredients of the product can reach the animal intestinal tracts, the physiological and immunity effects are achieved, meanwhile, aserum biochemistry index can be improved, the body immune organ index is increased, the pH value of the content of the gastrointestinal tract is lowered, growth of harmful microbes is controlled, thebalance of the intestinal tract microorganism flora is kept, the small intestinal tract form is improved, the piglet intestinal tract mucous membrane permeability is improved, the intestinal mucosa barrier is protected, and the utilization rate of nutrient substances is increased, so that the animal body growth is promoted, and the production performance is improved.

The invention discloses a remote sensing detection method for ecological restoration of karst abandoned mines. The remote sensing detection method for ecological restoration of the karst abandoned mine comprises the following steps: S1, selecting a preset number of check points; S2, comparing a terrain data change map with a topographic map database according to a remote sensing surveying and mapping technology, and judging whether the new map needs to be wholly updated or partially updated; S3, according to coordinates obtained through remote sensing surveying and mapping, obtaining an objectspace adjustment value of the check point through least square adjustment; and S4, calculating the residual errors of the object space coordinate of the check point and the object space adjustment value in the X direction and the Y direction. According to the method, an existing information database is perfected, a real-time and effective method of the topographic map database is achieved, automatic comparison is conducted between a high-resolution remote sensing surveying and mapping technology and the existing topographic map database, changes of ground objects are detected, the labor intensity is reduced, and the updating rate is high.

The invention discloses a multifunctional fresh air mullion which comprises a fresh air mullion body and a movable glass inlay stopper. The movable glass inlay stopper is connected with the side surface of the fresh air mullion body through screws, end covers are arranged at the upper end and the lower end of the fresh air mullion body, the fresh air mullion body is divided into an electric ventilation part, an electric control part, a manual control part and a natural ventilation part from top to bottom, a first ventilation grilling and a second ventilation grilling are arranged in the fresh air mullion body, and the fresh air mullion body is divided into an outdoor air inlet cavity, a middle cavity and a filter cavity by the first ventilation grilling and the second ventilation grilling from an outdoor side to an indoor side. The multifunctional fresh air mullion has bearing, strengthening, dividing and decorating functions on door and window mullion when being applied to doors and windows and can serve as an indoor fresh air system, filtered, heated and sterilized outdoor air is led into the indoor spaces, window sashes cannot be opened, so that the indoor air and the outdoor air can be circularly interacted, the indoor air always keeps clean and fresh, and indoor air quality can be improved.

The invention relates to the technical field of block chains, in particular to a marketing information updating system and method based on a block chain, and the system comprises a marketing platformoperation node and a merchant technology node of the block chain. The marketing platform operation node is used for writing a marketing result corresponding to the marketing index of each merchant into the block chain for each merchant; and the merchant technology node is used for obtaining the target marketing result of the target merchant target marketing index corresponding to the merchant technology node from the block chain, and updating the marketing information of the target merchant according to the stored corresponding relation between the marketing index and the marketing informationwhen the target marketing result does not reach the preset marketing result. According to the invention, the marketing result of the merchant is written into the block chain through the marketing platform operation node, so that the merchant technical node of the merchant can directly update the marketing information of the merchant according to the marketing result in the block chain, thereby greatly shortening the updating period of the marketing information and achieving the purpose of improving the marketing effect.

The invention provides a device capable of enhancing the absorption of methyl iodide in acetic acid tail gas and a technology for recovering with the device. The device comprises an enhanced absorption device, and is characterized in that the enhanced absorption device comprises a casing; a rotating drum is arranged inside the inner chamber of the casing; cylindrical rotary filling material is arranged in the rotating drum; a liquid distributor is arranged in the central position of the inner chamber of the casing; the liquid distributor is positioned in an inner ring of the rotary filling material, and a gap is formed between the liquid distributor and the inner ring of the rotary filling material; a rotating shaft is arranged at the lower part of the rotating drum; in addition, the rotating shaft and the rotating drum are connected in a concentric manner, and the lower end of the rotating shaft penetrates out of the casing and is connected with a rotating power structure. The invention overcomes the defects of an acetic acid absorption tower, has the advantages of high space utilization rate, short material retention time and high absorption accuracy, is easy to operate, and can open up a new way to recover methyl iodide in acetic acid tail gas.

The embodiment of the invention provides a software updating method and an updating server. The updating server can receive updating information submitted by a server of at least one kind of sub-software in integrated software, and the updating server is a server except information servers of the integrated software; the updating server sends the updating information to a terminal device, the terminal device downloads an updating package from the servers of the sub-software according to the updating information and updates the sub-software according to the updating package. Due to the fact that the updating server except the information servers of the integrated software is used for sending the updating information, the updating of the sub-software is not limited by the information servers of the integrated software any more, the problem that the updating information cannot be sent in time is avoided, and the updating rate of the sub-software in the integrated software is improved.

The invention discloses a process method for producing aromatic hydrocarbon by moving bed continuous reforming. The process method comprises the following steps: carrying out prehydrogenation on a naphtha raw material; carrying out catalytic reforming on prehydrogenation generating oil so as to convert at least partial alkane and cycloparaffin into the aromatic hydrocarbon; and separating the aromatic hydrocarbon from the catalytic reforming generating oil, wherein a moving bed continuous reforming technology is adopted in the catalytic reforming process, four reaction areas are arranged, reaction raw materials successively pass through the four reaction areas, the aromatic hydrocarbon product is separated from reaction effluent in the fourth reaction area, a catalyst discharged from the fourth reaction area is recycled, and the recycled catalyst respectively enters the first reaction area and the fourth reaction area. Compared with the prior art, the process method disclosed by the invention has the advantages of high reaction efficiency, high aromatic hydrocarbon yield, prominent device economy and the like.