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240 results about "Grade system" patented technology

Academic grading in the United States commonly takes on the form of five, six or seven letter grades. Traditionally, the grades are A+, A, A−; B+, B, B−; C+, C, C−; D+, D, D−; F; with A+ being the highest and F being lowest. Numeric to letter grade conversions generally vary from system to system and between disciplines and status.

System and method for calculating driving risks and assisting automobile insurance pricing based on multi-source data

The invention discloses a system and method for calculating driving risks and assisting automobile insurance pricing based on multi-source data. The system includes an intelligent mobile internet terminal and a remote server connected with each other; a plurality of data sensing acquisition units and applications are installed in the intelligent mobile terminal; and the remote server is provided with a risk model algorithm system and includes a scene driving risk analysis sub module, a distracted driving model recognition sub module, a user travel behavior analysis sub module and a driving behavior evaluation and grading system sub module. According to the system and method of the invention, data acquired by the intelligent mobile internet terminal and road traffic information acquired by the remote server are analyzed, and the scores of the sub modules are calculated, and automobile insurance pricing is carried out according to the scores. With the system and method of the invention adopted, based on multi-source data acquisition and fusion, the driving behaviors of users are analyzed, and the travel habits, driving habits and driving risks of the drivers can be effectively calibrated, and therefore, theoretical basis and technical support can be provided for driving behavior-based automobile insurance pricing models.
Owner:MINCHI INFORMATION TECH SHANGHAI CO LTD

Detection and grading system for tenderness of fresh beef based on multispectral imagery

The invention relates to a detection and grading system for tenderness of fresh beef based on multispectral imagery, which belongs to the technical field of detection of food quality. In a dark box, the lens of a CCD industrial camera is aligned with the center of a table board of a height-adjustable objective table, two multispectral light source assemblies are symmetrically arranged at a left sidewall and a right sidewall of the dark box respectively through two light source fixing supports, and a large power LED array on each of multispectral light source assemblies is composed of LEDs of 6 kinds of wave bands; during detection, a sample to be detected is put on the table board of the height-adjustable objective table, the LEDs of 6 kinds of wave bands alternately radiate in order, the CCD industrial camera acquires multispectral images of the sample to be detected, a multispectral beef sample reflection image in an interested area of a lean meat part is extracted through computer image processing, and therefore, marbling of beef is extracted, and evaluation and grading of content of marbling of the beef are carried out, and tenderness of the beef is predicted. The detection and grading system provided by the invention is applicable to companies dealing with cutting, marketing, processing and import and export of fresh beef and to market supervision by quality and technical supervision departments.
Owner:CHINA AGRI UNIV

Method and device for automatically carefully sorting and grading shrimps

ActiveCN103801520ANot easy to damageAdjustable to adapt to changes in the detection objectSortingImaging processingShrimp
The invention discloses a device for automatically carefully sorting and grading shrimps. The device comprises a feeding system, a sorting channel, an image collecting system, a grading system and an image processing system; the feeding system is used for outputting to-be-sorted shrimps to the sorting channel in a single row; the sorting channel consists of a buffering channel and a sampling channel which are sequentially connected, the sampling channel is divided into a plurality of single-row channels, the buffering channel is internally provided with a plurality of direction adjusters, and used for separating raw material shrimps, output by the feeding system, into singles, and adjusting the posture of each raw material shrimp entering single-row channel; the image collecting system is used for collecting images of the raw material shrimps; the grading system comprises spray nozzles corresponding to single-row channels, and the spray nozzles are controlled by the image processing system and used for blowing the shrimps to enter different receiving tanks; the image processing system is used for analyzing the images, grading the image of each shrimp, and emitting the signal for controlling the grading system according to the graded results. The invention further discloses a method for automatically carefully sorting and grading shrimps.
Owner:ZHEJIANG UNIV

Hyper text transfer protocol (HTTP)-analysis-based uniform resource locator (URL) automatically classifying and grading system and method

The invention discloses a hyper text transfer protocol (HTTP)-analysis-based uniform resource locator (URL) automatically classifying and grading system and an HTTP-analysis-based URL automatically classifying and grading method. The system comprises an HTTP request/response message preprocessor, an HTTP request message resolving server, an HTTP response message resolving server, a switch, an HTTP storage and correlation server and an HTTP grading and classifying server, wherein the HTTP request/response message preprocessor is used for distributing an HTTP request/response message image data flow; the HTTP request message resolving server is used for recombining the HTTP request message image data flow; the HTTP response message resolving server is used for recombining the HTTP response message image data flow; the HTTP storage and correlation server is used for storing message information; and the HTTP grading and classifying server is used for automatically classifying and grading URLs. The method comprises the following steps of: preprocessing an HTTP message image data flow to acquire the HTTP request/response message image data flow, and distributing the HTTP request/response message image data flow; recombining the request/response message image data flow, and storing the message information which is extracted from recombined data; correlating the stored information; and classifying and grading the URLs according to correlated information. By the system and the method, the URLs can be efficiently classified and graded.
Owner:CERNET CORP

Construction process for blowing-filling sludge and reclaiming land from sea and device thereof

InactiveCN101560754AGuaranteed not to sinkSievingReversed direction vortexSludgeGrade system
The invention relates to a construction process for blowing-filling sludge and reclaiming land from sea and a device thereof. The device comprises a sludge dehydrating and grading system A, a solidification treatment system B and an improved slurry paving system C. The construction process comprises the following process flows: (1) in a designated area, blowing-filling the slurry discharged according to a common blowing-filling process or by an overflow device to a designated level to form a foundation slurry layer; (2) paving a permeable isolating layer e on the surface of the foundation slurry layer; (3) feeding sludge slurry a into the sludge dehydrating and grading system A to make the coarse concentrated slurry with low water content and coarse grain diameter enter a slurry and curing agent mixing device; (4) conveying a curing agent of a curing agent storage device to the slurry and curing agent mixing device through a curing agent conveying device; (5) stirring the slurry and the curing agent, and evenly stirring a mixture of the slurry and the curing agent through a discharge device to form modified slurry to be conveyed to a required place; and (6) adopting the paving system to pave the modified slurry to the designated thickness on the permeable isolating layer e layer by layer.
Owner:BEIHANG UNIV

Specularite dust ore dressing technology

ActiveCN104437827AAvoid weak magneticHigh recovery rateWet separationGrade systemBall mill
The invention belongs to the technical field of ore dressing and particularly relates to a specularite dust ore dressing technology. The specularite dust ore dressing technology is characterized by comprising an ore grinding and grading system and a magnetic separation and dressing system. The grade of input raw ore is 33%, and the granularity is 0-15 mm. The specularite dust ore dressing technology comprises specific steps that firstly, specularite dust ore passes through two segments of continuous closed circuits for grinding until specularite is dissociated from gangue monomers, wherein the ball mill-cyclone-fine screen closed circuit is adopted for each segment of ore grinding; the products of which the grading size is 0.074 mm, the grade is 33% and the productivity is 100% in the two segments of closed circuits for grinding are fed into a medium-intensity magnetic separator, a roughing vertical-ring high-intensity magnetic separator, a concentration vertical-ring high-intensity magnetic separator, a roughing flat-ring high-intensity magnetic separator, a concentration vertical-ring high-intensity magnetic separator and two segments of scavenging flat-ring high-intensity magnetic separators for magnetic separation. The grade of final iron ore concentrate can be improved to 50%-52%, and the recovery rate can be increased to 70%-72%. Accordingly, economic benefits of a dressing plant are greatly increased, and the loss of iron resources is lowered.
Owner:MCC NORTH (DALIAN) ENG TECH CO LTD

Fresh oil tea fruit grading and shelling cleaner and method

InactiveCN106475301AEfficient shelling and screeningImprove shelling efficiencySievingScreeningEngineeringGrade system
The invention discloses a fresh oil tea fruit grading and shelling cleaner and method. The fresh oil tea fruit grading and shelling cleaner comprises a grading system, a shelling system and a cleaning system, wherein the grading system is a of nested structure including a fixed outer cylinder and a movable inner cylinder, the inner wall of the inner cylinder is provided with a guiding helix, round array holes are distributed in the cylindrical wall, the diameters of the array holes are increased in the motion direction of the helix, partition plates corresponding to diameter partition zones of the array holes are arranged in the outer cylinder, and low points in the areas among the partition plates are provided with corresponding-sized round holes. The shelling system is of a combined structure including a fixed cylinder and a disc-shaped knife board, the cylinder is free of an upper end cover to facilitate feeding, blades or a protruding structures are distributed on the knife board, and gaps distributed in an array mode are formed in a base plate of the cylinder facilitate discharging. The cleaning system is designed to be of a toothed smooth roll structure, the toothed smooth roll is arranged at a certain angle and rotate reversely, and the shell-seed separating purpose is achieved by combining a screen. The fresh oil tea fruit grading and shelling cleaner is mainly used for fresh oil tea fruit grading, shelling and cleaning.
Owner:TSINGHUA UNIV

Near space atmosphere environment detector and operating method thereof

The invention provides a near space atmosphere environment detector and an operating method thereof. The detector comprises a load grade system and a booster grade system; the booster grade system comprises a rocket body structure, a booster grade control subsystem and a booster grade power mechanism; the booster grade control subsystem is used for detecting the attitude and motion information of the rocket body structure when the load grade system is separated, and then controls the operation of the booster grade power mechanism according to the attitude and motion information of the rocket body structure, and therefore backward-thrust braking is provided to make the rocket body structure land in the vertical direction; the load grade system comprises a payload bay carried with an environment detection instrument, a load grade control subsystem and a load grade power mechanism; the load grade control subsystem is used for controlling the load grade power mechanism to operate in dependence on detected attitude, height, motion and guidance information, control of flying trajectories of the payload bay, the load grade control subsystem and the load grade power mechanism is achieved, and at least two times of skip flying is achieved.
Owner:SHANGHAI AEROSPACE SYST ENG INST

Coal-gas-circulation coal whole-size-grading pyrolytic coupling hot-pressing formed coke preparation technique and system

The invention provides a coal-gas-circulation coal whole-size-grading pyrolytic coupling hot-pressing formed coke preparation technique and system. Raw coal is divided into slack coal and pea coal by a raw coal preheating grading system; the coal gas generated by the method is used as a heat source for slack coal pyrolysis in a slack coal pyrolyzing furnace, and pyrolytic coal gas generated by slack coal pyrolysis is used as a heat source for pea coal pyrolysis; hot semicoke obtained after the slack coal and pea coal pyrolysis is used as a raw material for preparing the hot-pressing formed coke; and tar slag collected at the coal pyrolysis section is used instead of part of the adhesive for preparing the hot-pressing formed coke. The coal pyrolysis technique and hot-pressing formed coke preparation technique are coupled to produce the formed coke, thereby implementing graded utilization of coal and coke making of mill coal, saving the rare coke resources for the nation, and implementing high added value utilization of the product semicoke. The tar slag generated at the coal pyrolysis section is used as part of the adhesive instead of part of high-price coal pitch, thereby achieving the goal of waste reutilization. By using the hot semicoke as the raw material, the formed coke is formed under hot conditions, so that the heat utilization efficiency is high.
Owner:新疆乾海环保科技有限公司

Wet method roller type disintegrating mill and grading closed-circuit process thereof

InactiveCN105854992AMeet the needs of beneficiation technologyImprove grinding efficiencyGrain treatmentsSlurryGrade system
The invention provides a wet method roller type disintegrating mill and a grading closed-circuit process thereof. The wet method roller type disintegrating mill comprises a millstone, milling rollers, a motor, a hydraulic system, a rocker arm, a striker plate and a material receiving groove. The milling rollers are located on the upper surface of the millstone and make contact with the millstone. The milling rollers are connected with the rocker arm. The rocker arm is connected with the hydraulic system. The millstone is connected with the motor through a transmission device. A grading device is connected to a material receiving pipe. The invention further provides an application method for the wet method roller type disintegrating mill. According to the wet method roller type disintegrating mill provided by the invention, the characteristics of a dry method roller type disintegrating mill and the process characteristics of wet method grading are combined, disintegrating milling is conducted through the high-pressure rollers under the condition that the water content of slurry concentration is 30%-70%, a wind grading system of the dry method roller type disintegrating mill is removed, and primary wet method grading is conducted through a baffle or a screen plate in the mill. The wet method roller type disintegrating mill and the grading closed-circuit process thereof are capable of meeting the beneficiation process technical requirements, improving the disintegrating milling efficiency and reducing the power consumption and steel consumption of disintegrating milling.
Owner:申士富

System for grading marine animals by size

A grading system (10) for grading marine animals such as fish (12) by size includes a receptacle (14) for holding a volume of water (16) and the fish (12). The receptacle (14) includes a landing (18) through which fish can enter and exit the receptacle (14). A grader (20) is supported to rotate through the water (16) about a horizontal axle (22). The grader (20) includes a first panel (24a) which is provided with a plurality of openings (26a) in the form of gaps between parallel radially extending rods (28). The panel (24a) has an outer peripheral edge (30) constituted by two radial edges (32a) and a lateral outer edge (34a) extending between the radial edges (32a). The outer peripheral edge (30) contacts or is sufficiently close to an inside surface (36) of the receptacle (14) to prevent the passage of fish (12) between the edge (30) and an inside surface (36) of the receptacle (14). As grader (20) is rotated in a clockwise direction (D) about the axle (22) to a first grading position where the lateral edge (34a) is adjacent the landing (18), the panel (24a) sweeps through the receptacle. The fish which are sufficiently small are able to pass through the openings (26a) leaving the larger fish in front of the panel (24a). When the grader (20) reaches the first position, the only fish (12) in advance of the panel (24a) are those which are too big to pass through the openings (26a). These are now directed through the landing (18) out of the receptacle (14).
Owner:MCROBERT IAN

High-pressure rolling and magnetic-gravity separation process for lean hematite

The invention relates to a high-pressure rolling and magnetic-gravity separation process for lean hematite. The high-pressure rolling and magnetic-gravity separation process for lean hematite is characterized by comprising the following steps that after raw ore particles with the particle size of 0-300 mm are subjected to the coarse crushing and intermediate crushing screening operation, the product particle size is 0-35 mm; after the particles pass through a high-pressure roll mill and a wind grading system, the large-particle-size products subjected to wind grading return to the high-pressure roll mill, the small-particle-size products subjected to wind grinding and with the 200-mesh sieve sieving rate being 90%-95% are fed to the technical procedures with low intensity magnetism, high intensity magnetism and a centrifugal machine so as to be graded; concentrate obtained through low intensity magnetic separation and concentrate obtained through the centrifugal machine are combined into final concentrate with the grade being 66.5%-67.5% and the yield being 27%-29%; and the grade of tailings of high intensity magnetic separation is 8.3%-8.8%, the grade of tailings of two-stage scavenging centrifuge is 16%-18%, and the tailings of high intensity magnetic separation and the tailings of two-stage scavenging centrifuge are combined into final tailings with the grade being 10.50%-11% and the yield being 61%-63%. The high-pressure rolling and magnetic-gravity separation process for lean hematite has the advantages that original fine crushing operation and two-stage grinding operation are omitted, the products with the 200-mesh sieve sieving rate being 90%-95% can be directly obtained by the adoption of the high-pressure roll mill and the wind grading system, the process structure is simplified, and the ore separation cost is reduced significantly.
Owner:ANSTEEL GRP MINING CO LTD
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