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388results about How to "Reduce time loss" patented technology

Hydraulic device for the injection of bone cement in percutaneous vertebroplasty

The present invention relates to the medical field, in particular relates to the practice of percutaneous vertebroplasty where a pair of syringes in the distal extreme of a lengthened hydraulic device, are united by a camera of intermediate connection of larger diameter (pressure exerting body) or modified inverted syringe tube with a bolster, a hydraulic connecting tube of flexible material that transmits the pressure of the smaller diameter manual or impulsion syringe in the proximal extreme of the device toward the intermediate cylindrical larger diameter camera (pressure exerting body), this camera is in an inverted position with regard to the first syringe (fluid control), this intermediate camera has a moving piston longitudinal to the axis of the cylinder that is controlled with the first syringe (manual) and in cooperation with the atmospheric pressure. The injecting syringe loaded with bone cement is coupled with the bolster of the body of pressure, and to the needle that drives the cement toward the interior of the bone. The intermediate camera (pressure exerting body) together with the hydraulic tube and the manual syringe form a hydraulic press system (F/A=f/a) that allows to increase in a potential way the pressure exerted in the first syringe and to make the injection of polymethylmethacrylate (PMMA) at an approximate distance of 1.0 m to 1.5 m.
Owner:DEPUY SYNTHES PROD INC

Local file system-based small file reading and writing method and system

The invention discloses local file system-based small file reading and writing method and system. The method comprises the following steps: aggregating small files belonging to a same directory in a local file system into N large files, wherein the N is a positive integer; generating a corresponding index file for each directory one to one, wherein the index files comprise names of all the small files in the directories, names of the large files where the small files are arranged and positions of the small files in the large files; receiving small file operating instructions comprising path names of the small files and determining the index files corresponding to the directories which the small files belong to according to the small file operating instructions, wherein the operations comprise reading and / or writing; modifying the names and the positions of the small files in the path names of the small file operating instructions to the names of the large files where the small files are arranged and the positions of the small files in the large files according to the determined index files; and executing the corresponding operations on the large files where the small file are arranged according to the modified instructions. By means of the method and the system which are disclosed by the invention, the small file operating efficiency is increased.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

Transfer learning-based multi-view commodity image retrieval and identification method

The invention discloses a transfer learning-based multi-view commodity image retrieval and identification method. The method comprises the steps of 1, establishing a multi-view image basic library according to a commodity list, performing fine adjustment on a pre-trained deep residual error network by using a small amount of commodity images through a transfer learning technology, extracting features of the image basic library by using the network, performing dimension reduction on the features, constructing a feature library, and finally according to corresponding relationships among the feature library, the image basic library and commodity types, establishing a mapping table; 2, after to-be-identified commodity images are obtained, extracting features of the images by using the networkand performing dimension reduction; and 3, performing distance measurement on the features of the to-be-identified commodity images and the features of the images in the basic library, taking the mostsimilar image with the shortest distance as a matching result, and through the mapping table, obtaining commodity type names of the to-be-identified commodity images. The features with strong representation capabilities can be automatically extracted; a semantic gap is further broken through; and the retrieval efficiency and the identification precision are improved by only utilizing a small amount of image basic libraries and low-dimensional features.
Owner:XI AN JIAOTONG UNIV

Cooperative control method of left-opened-door bus special phase setting and social traffic flow

The invention discloses a cooperative control method of a left-opened-door bus special phase setting and social traffic flow, which comprises the following steps: setting a bus station and a stereo facility which help pedestrians to cross a street; detecting a bus; determining the running time of the bus; determining a signal phase of the bus which drives through an intersection; and setting the bus special phase and a cooperative control plan. According to the invention, the bus stations in two directions are combined and placed at a median strip of the intersection, so that not only the land is saved, but also the bus station points are easier to recognize, and meanwhile, a new concept for planning and constructing of a public transit network is provided, that is, the public transit network is connected based on the bus stations arranged at intersections. With the adoption of the method, the situation that the bus does not stop at an intersection without a bus station while stops at an intersection with a bus station can be basically realized, so that passengers waiting for a long time at an intersection with a bus station can be avoided, thereby shortening the whole driving time of the bus and improving the whole operation efficiency of the bus system. Moreover, the method is functioned as the cooperation of the social traffic flow, so that the passing efficiency of the whole intersections is guaranteed.
Owner:SOUTHEAST UNIV

Method for coordinating and controlling urban arterial road group

InactiveCN102956111AReduce time lossImprove the ability to deal with current traffic congestion and other problemsControlling traffic signalsControl periodUrban area
The invention discloses a method for coordinating and controlling an urban arterial road group. The method comprises the following steps of establishing a region control strategy according to the situation of an urban road network, and grading arterial roads in a region; setting an arterial road coordinating and control scheme step by step according to different grades of the arterial roads; using shortest average travel time on the arterial roads as an optimal object, determining the period of the arterial roads in lower priority grades according to intersected arterial roads in higher priority grades, and simultaneously optimizing phase difference in the arterial roads between arterial road groups; and regulating duration of upstream green lights and downstream green lights in the arterial roads according to no overflow in a large period of the arterial roads, preventing traffic jam from happening in a control period, and finally realizing the coordinating and the controlling of the urban arterial road group. The method disclosed by the invention is suitable for an urban area road network with an obvious arterial road structure, the travel delay of vehicles on the arterial roads can be effectively reduced, the traffic jam can be avoided, and the regional coordination and optimization can be realized.
Owner:SOUTH CHINA UNIV OF TECH +1

An image gesture action online detection and recognition method based on deep learning

The invention discloses an image gesture action online detection and recognition method based on deep learning. The method comprises extracting all frames of images, marking each frame of image, and inputting the marked image into a gesture detection network for training; inputting a section of gesture action video stream into a gesture detection network, obtaining a local gesture area marked as adynamic gesture in each frame of image, and obtaining a local gesture area image frame marked as the dynamic gesture; performing sampling processing by using a piecewise random sampling algorithm, extracting to obtain optical flow information, performing spatial feature map extraction, and inputting the feature maps into respective gesture recognition networks for training; inputting the gesturevideo stream to be detected into a gesture detection network, respectively obtaining predicted classification results, and taking the gesture video stream with the maximum probability as a final result. The gesture actions in the video stream are classified without human intervention, the calculated amount is small, the recognition accuracy is high, the features of the gesture actions can be extracted more efficiently, and the method has higher robustness compared with a complex background.
Owner:北京汉迪移动互联网科技股份有限公司

Active driving circuit for SiC power device of electric vehicle motor controller

The present invention provides an active driving circuit for a SiC power device of an electric vehicle motor controller. The active driving circuit comprises a dID/dt detecting circuit, a dVDS/dt detecting circuit, a feedback signal filtering circuit, a differential amplifying circuit and a power amplifying circuit. The differential amplifying circuit is connected with the gate of a SiC power device through the power amplifying circuit, the differential amplifying circuit is connected with a pulse generator Vgg to input a PWM drive signal; the feedback signal filtering circuit is connected with the differential amplifying circuit, the dID/dt detecting circuit is connected between the source of the SiC power device and the feedback signal filtering circuit, and the dVDS/dt detecting circuitis connected between the drain of the SiC power device and the feedback signal filtering circuit. The drain current change rate and the drain-source voltage change rate are directly fed back to the drive signal input end to modulate the drive signal, the current rising phase in the turn-on process and the voltage rising phase of the turn-off stage are independently controlled, a simple simulationcircuit is adopted to achieve, and therefore, the active driving circuit for the SiC power device of the electric vehicle motor controller is high in applicability, simple in implementation, low in cost and good in control effect.
Owner:HUNAN UNIV +1

DM code locating and identification method and system

The invention relates to a DM (Data Matrix) code locating and identification method and system. The method comprises the steps of obtaining a binary image of an original image; extracting an effective region which contains a DM code from the binary image; obtaining a confidence single-edge image from the effective region; performing Hough transform on the confidence single-edge image, establishing an angle shielding region after finding a response point corresponding to a first search mode edge in a parameter space of a Hough transform domain, searching for a second search mode edge outside the angle shielding region, and obtaining three locating points at the end points of the two search mode edges; obtaining two switching mode edges of the DM code by rotating a pixel accumulator with a direction, and solving a fourth locating point; performing inverse perspective transformation on the DM code according to the four locating points to obtain a standard DM code image and performing mesh division on the standard DM code image; and performing codon extraction on the DM code subjected to the mesh division, and recovering codon information. According to the method and the system, the DM code still can be efficiently located and identified when a DM image is seriously defiled.
Owner:元启工业技术(青岛)有限公司

Intelligent interview method, system and device and storage medium

The invention discloses an intelligent interview method. The method comprises the following steps: (a) an enterprise issues a job interview demand; (b) the server performs job competence model matching on the job demand; (c) the server selects questions in a test question bank according to the matched competence model; (d) the server performs test paper composition according to the selection result; (e) the job seeker is notified that the online intelligent interview can be carried out; (f) the job seeker starts an interview program to answer questions; (g) the server performs data processingon the answer record of the job seeker; and (h) the server performs score calculation according to the processing result. According to the AI video interview method capable of realizing targeted personalized interview, the competence quality model of recruitment posts is constructed, and the earlier-stage preparation process of interview questions with targeted assessment contents is matched; in the video interview process, the grading process of candidates is completed through semantic analysis, video analysis, audio analysis and other technologies, and therefore the purpose that preliminarypersonnel screening can be rapidly and accurately conducted in enterprise recruitment is achieved.
Owner:北京网聘咨询有限公司

Intelligent drying control method for washing machine

The invention discloses an intelligent drying control method for a washing machine, and relates to the intelligent control technology for the washing machine. With adoption of the method, the problems in the present washing machine that the rotating speed of a motor is not matched with clothes during drying, the drying time is long and the loss of a motor is great are solved. According to the method, the drying process is divided into multiple stages by a control system; during one stage, a motor is controlled to operate at constant rotating speed or constant electric current; when the motor operates to achieve preset conditions of the stage, the control system improves the rotating speed or the electric current of the motor through quantitative control, so the motor comes to the next stage and operates; when drying completion conditions preset by the control system are met, the drying process is completed. The electric current or the rotating speed of the motor is adjusted in a staged quantitative manner, so that the rotating speed of the motor can be prevented from being overhigh after the drying operation starts; the motor can be adjusted timely when the drying degree of the clothes achieves the limit, so unnecessary operation time can be reduced, overhigh drying rotating speed can be avoided, drying time and motor loss can be reduced, electric consumption is saved.
Owner:PANASONIC APPLIANCES CHINA CO LTD +1

Multi-fault intelligent diagnosing method for artificial circuit utilizing quantum Hopfield neural network

The invention provides a multi-fault intelligent diagnosing method for an artificial circuit utilizing quantum Hopfield neural network and aims at multi-fault coupling of the artificial circuit. The multi-fault intelligent diagnosing method includes the steps of data acquisition, feature extraction, feature quantization, fault cause probability analysis and the like. Ideal single-fault response and actual measured multi-fault response of the artificial circuit are obtained through SPICE simulation and a data acquisition board respectively. After wavelet packet decomposition, fault response wavelet coefficient defined by a new energy function realizes construction of an energy feature space. Elements in the energy feature space is submitted on the basis of quantization to a quantum Hopfield neural network model. Neuron states and connecting weight matrix in the network are expressed in quantum states. By calculating probability value of occurrence of related weight element in measurement matrix, the occurrence probability of quantum key input mode in forms of specific quantum memory prototype at specific time, and accordingly occurrence probability of multiple faults relative to specific single fault is obtained to judge fault types.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Irrigation method based on dynamic multilayer extreme learning machine

The invention relates to an irrigation method based on a dynamic multilayer extreme learning machine. The irrigation method comprises first collecting a plurality of training data, which comprises soil environment data, meteorological data and crop coefficients of irrigated crops; then performing normalization processing on each group of the training data to form a training set; training the multilayer extreme learning machine by using the training set to obtain a final model; and finally collecting test data, performing normalization processing on the test data, inputting the processed test data into the final model so as to obtain a predicted water amount required by irrigation, and performing irrigation according to the predicted water amount required by irrigation. In the irrigation method provided by the invention, a strategy of ''seeking common points while reserving difference'' is adopted according to calculation accuracy. If the calculation result of the re-input data by using a model meets the accuracy requirement, the model is output, otherwise incremental learning training is performed on the basis of the existing model to obtain a dynamically adjusted model. The irrigation method provided by the invention increases the calculation accuracy of water volumes required by irrigation, reduces the time consumption and calculation cost of prediction of the water volumes required by irrigation, and reaches the goals of reasonable use of water resources and reasonable irrigation of crops.
Owner:DONGHUA UNIV
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