282results about How to "Improve screening accuracy" patented technology

The invention discloses a breast cancer prevention self-service health cloud service system based on a deep convolutional neural network. The self-service health cloud service system mainly comprises a convolutional neural network applied to deep learning and training recognition, a partitioning module which is used for partitioning a breast area from a mammary gland molybdenum target radiography image based on a full-convolutional neural network, the deep convolutional neural network which is applied to BI-RADS classification and evaluation, and a self-service health cloud service platform which is applied to early preventing and treating breast cancer according to a recognized mammary gland inner structure, tumor and calcification types. The self-service health cloud service system can effectively improve the automatic and intelligent level of breast cancer screening based on a mobile internet, enable more women to know and participate in self-service health detection, evaluation and guidance, further improve the health consciousness of the public, and improve self health management capacity.

The present disclosure provides an artificial neural network system for identifying a lesion in a retinal fundus image that comprises a pre-processing module configured to separately pre-process a target retinal fundus image and a reference retinal fundus image taken from a same person; a first neural network (12) configured to generate a first advanced feature set from the target retinal fundus image; a second neural network (22) configured to generate a second advanced feature set from the reference retinal fundus image; a feature combination module (13) configured to combine the first advanced feature set and the second advanced feature set to form a feature combination set; and a third neural network (14) configured to generate, according to the feature combination set, a diagnosis result. By using a target retinal fundus image and a reference retinal fundus image as independent input information, the artificial neural network may simulate a doctor, determining lesions on the target retinal fundus image using other retinal fundus images from the same person as a reference, thereby enhancing the diagnosis accuracy.

The invention provides a self-discharging screening method of a lithium ion battery. The method comprises the following steps: step 1: pre-charging a battery to be screened to be in a full or half state; performing high-temperature aging treatment and storing at constant temperature; marking detection open-circuit voltage as OCV1 and storing at constant temperature; marking detection open-circuit voltage as OCV2; calculating a voltage critical value U0 in the same phrase, wherein the battery with the condition that OCV2 is less than U0 is a serious self-discharging battery; and step 2: removing the self-discharging battery by using a 3o circulating way based on voltage pressure before/after the laying-aside of the battery removed in the step 1 in a full-charge state or a half-charge state. According to the self-discharging screening method of the lithium ion battery, the battery is screened after the battery is laid aside in the full-charge state or the half-charge state and the open-circuit voltage is determined, and the corresponding self-discharging batteries are removed by using the 3o circulating way, so that the self-discharging screening of the lithium ion battery is realized.

The invention discloses high-precision vegetable and fruit quick intelligent selecting equipment. The high-precision vegetable and fruit quick intelligent selecting equipment comprises a feeding conveying device, a horizontal conveying device and a pneumatic mechanism, wherein a horizontal conveyer belt comprising rollers is arranged on the horizontal conveying device; one or more groups of screening and discharging mechanisms which are opposite to the pneumatic mechanism in an up and down manner are arranged above the horizontal conveying belt; each screening and discharging mechanism comprises a discharging platform which is fixedly arranged above the horizontal conveying device; anti-falling baffles are respectively arranged on the front side and the rear side of each discharging platform; a rotational flow cover is arranged on each discharging platform; the side edge of each rotational flow cover is arc-shaped; a substandard product blowing-out opening is formed by two side edges of each rotational flow cover and two side edges of the corresponding discharging platform; each substandard product blowing-out opening is in up-and-down correspondence with air jet holes of the pneumatic mechanism. According to the high-precision vegetable and fruit quick intelligent selecting equipment disclosed by the invention, the screening and discharging mechanisms adopting special structures, a feeding and conveying device and rollers in the horizontal conveying device are arranged, the effects of positioning and precise photographing of vegetables and fruits are increased in an omnidirectional manner, and the screening efficiency is also greatly improved.

The invention provides a target detection method and device. The method comprises the steps of obtaining a target candidate area in a to-be-detected image; determining at least two component candidateregions from the target candidate regions through an image segmentation network, each component candidate region corresponding to one component of the to-be-detected target, and extracting the localimage features corresponding to each component candidate region from the to-be-detected image; learning each local image feature of each part candidate region through a bidirectional long short time memory network (LSTM) to obtain a part relation feature for describing a mutual relation between the part candidate regions; and detecting the to-be-detected target in the to-be-detected image according to the component relationship characteristics. According to the invention, the image data processing precision of target detection can be improved, the diversity of application scenarios of target detection is enhanced, and the accuracy of the target detection is improved.

The invention relates to a grouping type mesh screen with continuously adjustable mesh size. The grouping type mesh screen comprises cross rods and vertical rods. All of the cross rods are positioned on the same plane, and all of the vertical rods are positioned on another plane next to the previous plane. The cross rods and the vertical rods in the same group are fixed together and can move in X-axis direction and Y-axis direction with other groups so as to adjust meshes of the mesh screen. An end part of an adjustable rod is provided with scales for adjust instruction, and each group of rods is connected together through locking devices when the adjustment is completed. The mesh screen with continuously adjustable mesh size has a reasonable design, high screening precision and high efficiency and is convenient to use and economic and practical, the mesh size the mesh screen can be adjusted in a certain range, and the mesh screen is not limited by specifications when being used and can achieve the effect of multiple purpose with one mesh screen.

The invention relates to a sieve mesh with adjustable sieve pore gaps. An edge frame is provided with a group of movable frames moving along an X shaft and a group of movable frames moving along a Y shaft; an upper beam which is uniformly distributed and made by each movable frame moving along the X shaft is respectively positioned between adjacent longitudinal rods, is parallel to the longitudinal rods and positioned in the same plane, and a lower beam of the movable frame slides in a guiding manner by a guide sleeve fixedly arranged on the edge frame; and an upper beam which is uniformly distributed and made by each movable frame moving along the Y shaft is respectively positioned between adjacent horizontal rods, is parallel to the horizontal rods and positioned in the same plane, and alower beam of the movable frame slides in a guiding manner by a guide sleeve fixedly arranged on the edge frame. The sieve mesh has reasonable design, convenient use, high sieving precision and highefficiency, is economical and practical, and can adjust the size of the sieve pore continuously; and the sieve mesh can adjust the size of the sieve pore in a certain range, is not limited by the specification when in use and can realize the multiuse effect with one mesh.

The present invention relates to a device for collecting a sample of exfoliated cells from a colorectal mucosal surface of a human subject which comprises a colorectal insertion member (1) having a distal, insertion end (2), a proximal end (34) and a closable interior cavity (3), a flexible membrane having an outer, cell sampling surface (5) and an inner surface, wherein said membrane is sealingly attached to the distal, insertion end of said insertion member and held within the interior cavity, such that, in use, pressurisation of the interior cavity to at least a first elevated pressure causes the membrane to emit from the distal end of said insertion member to make contact with the colorectal mucosal surface and pressurisation of the interior cavity to a second reduced pressure causes the membrane to invert and return to the interior cavity of said insertion member A kit comprising said device and methods of colorectal cell sampling using said device are also described.

The invention discloses a vertical spiral vibrating screen capable of greatly increasing the area of a screen and lengthening the movement stroke of powder. The vertical spiral vibrating screen comprises a base, a screen arranged on the base through a plurality of supporting springs, a vibrating device connected with the lower end of the screen and positioned in the base, a bin arranged at the upper end of the screen and a feeding valve arranged in the bin. The screen comprises a shell, a middle upright post and a screen net. The shell is a cylinder provided with a cover plate and a bottom plate, and the lower part of the shell is provided with a fine powder feeding hole and a coarse powder feeding hole; the middle upright post is vertical to the center of the shell; and the screen net comprises a bottom screen net, a lateral screen net and a top plate, wherein the inner edge of the bottom screen net is fixed on the middle upright post and is downwards spiral around the middle upright post, the lateral screen net is arranged coaxial with the middle upright post and is downwards spiral around the middle upright post, the lower end of the lateral screen net is connected with the outer edge of the bottom screen net, and the inner edge of the top plate is fixed on the middle upright post and is downwards spiral around the middle upright post.

Provided is a filtering device, which could not reduce the recovery of the heavy proportion object, prevent mid light proportion object from mixing with heavy proportion object. Filtering device has upwelling generating tube (8) making upwelling generate inside the flume (2), and suction catheter (9) sucking mid light proportion object (B) floating undersurface in virtue of upwelling to upper, so the mid light proportion objects (B) of low deposition speed are floated undersurface by the upwelling, and are sucked and dischared to the suction catheter (9), which prevents mixing and depositing into the heavy proportion object (A) of the bottom of the flume (2), and even the heavy proportion objects (A) entering into the suction catheter (9) owing to upwelling, it could not be sucked to the upper by the suction catheter (9) but deposited to outside, without reducing the recovery of the heavy proportion object (A), and preventing mid light proportion object (B) from mixing with heavy proportion object (A).

The invention discloses circular grinding equipment, comprising a crusher, a feeder, a pulverizer, a screening device, a material returning machine and a collector, wherein a feeding hole is formed in the crusher and a discharge pipe is arranged on the crusher; the discharge pipe is connected with the feeder; the feeder is connected with the pulverizer; the pulverizer is connected with the screening device; the material returning machine and the collector are both connected with the screening device; the feeder comprises a feeding tray and a material returning opening; the screening device comprises a blast blower and a sieve plate; meshes are fully distributed in the sieve plate; the material returning machine comprises a conveyer belt and a material returning shovel; and the material returning shovel is matched with the material returning opening. The circular grinding equipment is compact and novel in structure, is in a circular structure, can full-automatically run, and is free of manpower, full to crush, high in screening accuracy, high in efficiency and low in energy consumption; and resources are saved.

The invention provides a catalytic material screening method and a catalytic material screening system combining a high-throughput experiment and high-throughput calculation. The method comprises thesteps: screening a to-be-confirmed catalytic material meeting a target catalytic performance by using a catalyst structure-activity relation model constructed based on the data results of a high-throughput experiment and high-throughput calculation; performing high-throughput preparation and high-throughput performance evaluation on the screening result to obtain the experimental result of the to-be-confirmed catalytic material; and comparing the catalytic performance prediction result of the to-be-confirmed catalytic material with the experimental result of the to-be-confirmed catalytic material, and determining that the to-be-confirmed catalytic material is the catalytic material reaching the target catalytic performance under the condition of a predetermined deviation range. According to the scheme, the theoretical calculation simulation result, the existing experiment result and the new catalyst characterization result can form a mutual verification relationship through the catalyst structure-activity relationship model constructed based on the high-throughput experiment and the high-throughput calculation, so that the screening precision and the screening speed of the catalytic material are improved.

The invention relates to the technical field of network games and specifically relates to a method and system for implementing a trans-regional distributed match of a game. The method for implementing the trans-regional distributed match of the game comprises the steps that a matching combat unit sends a command to a signaling transit and transmission server of a region; and the signaling transit and transmission server reports the command to a center matching dispatch server, and the command is transited and issued to each matching combat unit after being screened and dispatched by the center matching dispatch server. The system and the method greatly improve game experience of players.

The invention discloses an investment and financing project screening system for facing a high-tech business incubator. The investment and financing project screening system for facing the high-tech business incubator is characterized by comprising a base auditing module, a base project library, a qualification auditing module, an alternative project library, a risk evaluation module, a practicable project library and a project generating module; the base auditing module is used for base auditing submitted enterprise information online, the base project library is used for storing the enterprise information which passes through the base auditing, the qualification auditing module is used for qualification grading, the alternative project library is used for storing the enterprise information which satisfies a qualification screening module grading standard, the risk evaluation module is used for risk evaluating, the practicable project library is used for storing the enterprise information which passes through a risk control grading of the risk evaluation module, and the project generating module is used for generating a practicable project. According to the investment and financing project screening system for facing the high-tech business incubator, all kinds of innovation and development indexes of scientific and technologic type small and micro enterprises can be quantified, evaluated and led in the risk evaluation module, the investment and financing risk is judged, so that investment and financing projects of the technologic type small and micro enterprises can be screened quickly and accurately.

The invention provides a user screening method and device, wherein the user screening method comprises: performing statistical analysis on existing users corresponding to a target service and determining a user feature set corresponding to the target service; analyzing the basic data and the historical behavior data of a candidate user and determining the feature data of the candidate user; and determining whether the candidate user is a target user according to the matching degree of the user feature set and the feature data of the candidate user. The user screening method and device providedby the invention accurately screen the target users of the service based on the user feature of the service and the features of the user, and improve the user screening accuracy.

The present invention provides an apparatus and method for sorting coal and gangue, comprising a conveying line, a queuing mechanism, a camera shutter trigger, a measuring table and a sorting actuator. The queuing mechanism, the camera shutter trigger, the measuring table and the sorting actuator are sequentially arranged on the conveying line. Through the above-mentioned devices, the volume of the coal and the volume of gangue are obtained by utilizing the characteristics of different densities of the coal and the gangue and by combining the intelligent vision and the image processing algorithm. The mass is further obtained through a dynamic weighing sensor installed on the roll-on line, and the coal and the gangue are separated by utilizing the characteristics of different densities. Theapparatus and the method realize automatic screening of coal and gangue, reduce cost, improve screening precision, and avoid environmental pollution.

The invention discloses a biopharmaceutical screening device, comprising a body, wherein feeding hoppers are welded to the left and right sides of the top of the body, a suction pump is fixedly mounted on the top of the body, a suction hopper is arranged at the top of an inner cavity of the body, the top of the suction hopper is fixedly connected with the bottom of the suction pump, a first filternet is fixedly arranged at an inner cavity of the suction hopper, discharge pipes are installed on the left and right sides of the suction pump, one end, away from the suction pump, of each dischargepipe is connected to the top of a dust box at the top of the body, and fixed seats are symmetrically welded in the inner cavity of the body. The biopharmaceutical screening device can perform multi-stage screening on pharmaceutical raw materials by a multi-stage screening mechanism, thereby improving the screening precision; the screening device can improve the screening efficiency by an eccentric screening method; at the same time, the screening device can absorb impurities such as dust in the pharmaceutical raw materials, thereby removing the impurities.

The invention provides a screening system and screening method for reactive metal powder. The screening system comprises a first vibrating screen device, an airflow grading device, a second vibratingscreen device and a protective gas circulating system, wherein the airflow grading device comprises a spiral feeder and a grading bin, a discharging port of the first vibrating screen device is connected with the spiral feeder, the spiral feeder is connected with the grading bin through a conveying pipe, and a discharging port of the grading bin is connected with the second vibrating screen device. According to the screening system and screening method, the screening process of the screening system is simple, powder screening among different particle size ranges can be completed at one time, screening efficiency and screening precision are improved, and then the technical problems that the screening process of a screening device in the prior art is tedious, and the screening efficiency andthe screening precision are not high are solved.