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15results about How to "Reduce measurement" patented technology

Bed load sediment transport rate measuring method based on multi-layer sediment sound signal attenuation correction of Doppler flow velocity profiler

The invention discloses a bed load sediment transport rate measurement method based on multi-layer sediment acoustic signal attenuation correction of a Doppler velocity profiler, which comprises the following steps: sampling sediment on the surface of a riverbed in an overtopping area of a to-be-measured river reach, and measuring sediment gradation to obtain the median particle size of the bed sediment; obtaining flow measurement data, and extracting ship speed data from the flow measurement data; calculating a riverbed movement speed according to the ship speed data; filtering the riverbed movement speed data, and calculating a characteristic value of the filtered riverbed movement speed data; respectively calculating the vertical projection area ratio of bed load according to the filtered riverbed movement speed data characteristic values; calculating a dimensionless sediment particle size according to the median particle size of the bed sand; calculating the thickness of a bed load layer according to the dimensionless sediment particle size; calculating the volume concentration of the bed load according to the vertical projection area ratio of the bed load and the thickness of the bed load layer; calculating a multi-layer sediment sound signal attenuation correction coefficient according to the bed load volume concentration; and calculating the bed load sediment transport rate according to the multi-layer sediment sound signal attenuation correction coefficient. The bed load sediment transport rate can be accurately and effectively measured.
Owner:SICHUAN UNIV

Bed load particle movement velocity measurement method based on Doppler flow velocity profiler sound wave scattering correction

The invention discloses a bed load particle movement velocity measurement method based on Doppler flow velocity profiler sound wave scattering correction. The method comprises the following steps: selecting a measurement river reach, sampling silt on the surface of a riverbed on a floodplain of an unsubmerged area, screening the sampled silt, and calculating the median particle size of the bed sand of the river reach according to the screening result; a measurement area is selected, an ADCP and a matched unmanned ship carrying DGPS are used for constant-speed cruise type flow measurement, and flow measurement data are obtained; calculating a riverbed movement speed according to the ship speed data; filtering the riverbed movement speed data, and calculating a characteristic value of the filtered riverbed movement speed data; respectively calculating a bed load vertical projection area ratio and a bed load scattering correction coefficient according to the filtered riverbed movement speed data characteristic value; and calculating the movement speed of the bed load according to the vertical projection area ratio of the bed load and the scattering correction coefficient of the bed load. According to the invention, the difficulty that the Doppler flow velocity profiler cannot be directly used to measure the accurate movement velocity of the bed load at present is overcome.
Owner:SICHUAN UNIV

Measuring device and measuring method for nondestructive testing of fillet weld of nuclear power station

PendingCN119573506ASolve measurement difficultiesSolve the problem of blind spotsAngles/taper measurementsNuclear energy generationFillet weldNuclear power
The invention relates to the technical field of nuclear power station welding seam detection, in particular to a measuring device and a measuring method for nuclear power station fillet welding seam nondestructive testing, the measuring device comprises a ruler plate, a sliding ruler and a stepped sliding groove, the main body of the ruler plate is a pentagon formed by cutting one corner of a square, and the inclined edge and the adjacent edge of the pentagon are arranged at 135 degrees; two sides, adjacent to the bevel edge, of the ruler plate are provided with stepped sliding grooves, the two stepped sliding grooves are perpendicular to each other in the same plane, the two stepped sliding grooves are in limited sliding connection with two sliding rulers respectively in the length direction, the opposite ends of the two sliding rulers abut against welding corners on the two sides of a T1 or H1 fillet weld respectively, and a marking line is carved at the outer side end of each sliding ruler. The ruler plate is provided with scales at the edges of the two stepped sliding grooves. The invention provides the measuring device and method for measuring the special fillet weld of the nuclear power station.
Owner:CHINA NUCLEAR IND HUAXING CONSTR +1

Binding and positioning tool for reinforcement cage

The utility model discloses a reinforcement cage binding and positioning tool, and relates to the technical field of reinforcement cages. The reinforcement cage binding and positioning tool comprises a plate body, supporting legs are fixed to the four corners of the lower end of the plate body, two symmetrical fixing rings are arranged on the plate body, limiting rings are arranged in the fixing rings and distributed in an array mode, fixing mechanisms are arranged between the fixing rings and the plate body, and adjusting mechanisms are arranged between the limiting rings and the fixing rings. When the positioning tool is used, a worker adjusts the arrangement distance between the reinforcing steel bars through the adjusting mechanism, distributes the reinforcing steel bars at equal intervals, adjusts the diameter of the reinforcing steel bar cage, facilitates binding of the reinforcing steel bar cages with different diameters, adjusts the intervals between the reinforcing steel bars, facilitates binding, reduces measurement during binding, improves binding efficiency, and after adjustment is completed, the worker can conveniently carry out positioning on the reinforcing steel bars. And then the reinforcing steel bars are limited through the fixing mechanism, and binding of the reinforcing steel bars is facilitated.
Owner:SHANDONG SHITONG HIGHWAY CONSTR CO LTD

Device for measuring spatial distribution of infrared LED thermal radiation intensity body

PendingCN119666156Areduce measurementMaximize the efficiency of thermal radiationRadiation pyrometryEngineeringMaterials science
The invention discloses a device relating to the field of sensors, in particular to a device for researching the spatial distribution of an infrared LED thermal radiation intensity body. The device is characterized by comprising a support, an infrared LED detection light source, a three-angle measuring part, an infrared heat radiation intensity measuring device, a fixing part, a pulley trolley, a pulley track and a light shield. The invention also discloses a use method of the device for measuring the spatial distribution of the infrared LED heat radiation intensity body. According to the device, the LED heat radiation intensity at different space angles is measured by changing the power of the external transformer of the LED light source, and meanwhile, the high-temperature damage of an instrument is prevented by adhering the radiator to the back, so that the measurement range is widened. The beneficial effects of the invention are that the existing invention can only calculate the infrared heat radiation in a single direction and mostly assists the biological body surface temperature, and the invention can measure the infrared LED heat radiation intensity at each angle in the space, reduce the material loss, obtain economic benefits and ensure the infrared LED heat radiation technology.
Owner:YANCHENG TEACHERS UNIV

Materials and methods for activating antigen-specific T cell responses

Described herein are natural killer group 2D (NKG2D) agonist complexes comprising a soluble MHC I chain-associated molecule (sMIC) and a non-blocking sMIC neutralizing antibody. Also provided are methods of using such complexes to activate CD8 T cells and methods of treating MIC-negative cancers and viral infections.
Owner:NORTHWESTERN UNIV

A curtain wall corner structure and connecting assembly

The utility model provides a curtain wall corner structure and connecting assembly belong to curtain wall installation technical field. The curtain wall corner structure and connecting assembly, including support stand, the front side of support stand is provided with two groups of crossbeam, two groups of crossbeam's back surface fixedly connected with fixed establishment, two groups of fixed establishment's opposite side with support stand fixed connection. The utility model has, in the installation process, through the hinge mechanism that a plurality of groups of transmission rod such as transmission rod no.
Owner:SHENZHEN ZHONGYUE JIANKE GRP CO LTD

Configuration parameter update method and apparatus

ActiveEP4380288A4send quicklyRapid positioning
A configuration parameter update method and an apparatus are provided. The method includes: when detecting that a first signal power of a first reference signal is less than a preset power, measuring, by a terminal in an RRC inactive state, candidate reference signals corresponding to candidate configuration parameters; determining, from the candidate reference signals, a first candidate reference signal that meets a preset condition, and sending a signal parameter of the first candidate reference signal to a first serving base station; and adjusting a beam direction and / or a transmit power of an uplink SRS based on the first candidate reference signal. According to the method, the terminal in the RRC inactive state adjusts the beam direction of the uplink SRS in a timely manner without switching a status. In addition, a base station participating in positioning may adjust a receive beam of the uplink SRS in a timely manner based on a signal parameter, thereby implementing positioning of the terminal in the RRC inactive state.
Owner:HUAWEI TECH CO LTD

Auxiliary tooling for frame coordinate measuring machine

This utility model discloses an auxiliary fixture for coordinate measuring machine (CMM) measurement of a motorcycle frame, relating to the field of motorcycle frame inspection technology. It solves the problems of cumbersome operation, low efficiency, large errors, and inconsistent benchmarks in existing measurement methods. The fixture includes a front support mechanism, a rear support mechanism, and a mandrel. The front support mechanism includes a height-adjustable support platform, with height adjustment achieved via a lead screw, guide rail, and rotating handle. The rear support mechanism includes symmetrical left and right support seats connected by a connecting rod. The support seats have V-grooves and are fixed to the measurement platform by adjustable strong magnets. The mandrel passes through a hole at the rear of the frame and is placed in the V-groove. This fixture can accurately position the frame, adapt to the height requirements of different frame types, ensure stable rear positioning, unify the design, manufacturing, and inspection benchmarks, and improve measurement efficiency and accuracy. It is suitable for the inspection of four-wheeled and two-wheeled motorcycle frames.
Owner:JINYUN KAYO MOTOR MACHINERY

Measurement method, device, equipment and readable storage medium

An embodiment of the present application provides a measurement method, apparatus, device and readable storage medium, the method comprising: after monitoring the PDCCH, starting or restarting a timer, and during the operation of the timer, performing CSI measurement and / or reporting within the first BWP indicated by the first DCI carried by the PDCCH according to the CSI reporting configuration, thereby reducing the conflict between measurement and transmission.
Owner:CHINA MOBILE COMM LTD RES INST +1

Process control system and implementation method for standardized blood pressure measurement

A process control system for standardized blood pressure measurement and implementation method, includes a blood pressure measurement process control device and a built-in control module, the blood pressure measurement process control device includes a computer host, a display screen, a control switch and an electronic sphygmomanometer, the electronic sphygmomanometer is mounted inside the blood pressure measurement process control device through a fixed structure. The application realizes a group of standardized blood pressure measurements for patients by controlling the electronic sphygmomanometer through the built-in each control module, automatically completes binding and outputting patient's identity information and blood pressure measurement results, and generates a blood pressure measurement report with complete information, so as to reduce the work intensity of medical staff, meanwhile reduce the measurement procedural error caused by human factors, and improve the reliability of measurement results and records.
Owner:JIANGXI CHANGGANG MEDICAL TECH LTD CO

Enclosed space communication optimization method and related equipment thereof

PendingCN121968238Aavoid callingavoid data interruptionHigh level techniquesWireless communicationCorrelation analysisWeak signal
The invention provides a closed space communication optimization method and related equipment thereof. The method comprises the following steps: correcting a received original acceleration according to a space coordinate system, identifying a motion state to generate space motion data, and carrying out correlation analysis on received power of a reference signal according to the space motion data to obtain an early warning mark of signal attenuation and a time window, and determining a target base station from the neighborhood list according to the early warning mark, performing pre-synchronization processing on the target base station to obtain synchronization information of the target base station, and connecting the terminal to the target base station according to the time window and the synchronization information when the signal power between the terminal and the current base station obtained by the terminal is lower than a power threshold. According to the method, the operation state of the closed space is pre-judged in advance, the adjacent region pre-synchronization and switching request is started before the signal is completely attenuated, the weak signal capturing capability is enhanced, and non-inductive transition and rapid reconstruction of communication are realized.
Owner:SHENZHEN KECHUANGXIANG INTELLIGENT TECH CO LTD

Method and device for positioning in wireless communication system

A method for transmitting information on measurement of a positioning reference signal (PRS) by a terminal in a wireless communication system, according to an embodiment of the present specification, comprises the steps of: transmitting a message for requesting a measurement gap; receiving configuration information related to the measurement gap; receiving the PRS on the basis of the measurement gap; and transmitting information on the measurement of the PRS. The information on the measurement of the PRS is transmitted on the basis of a preconfigured resource.
Owner:LG ELECTRONICS INC