78results about How to "High reliability of results" patented technology

The invention relates to a device and method for testing interfacial shear strength of fiber reinforced thermosetting resin composite materials. The device comprises a resin die, support plates, hollow screw rods, sleeves, spring clips, and a bottom support plate; the hollow screw rods and the support plates are connected in rigid connection, the sleeves and the hollow screw rods are connected through internal screw threads, the support plates are vertically placed on the bottom support plates and fixed with screws, the resin die is embedded in the middle part of the support plates and is placed on the bottom support plate, a fiber is introduced to pass through the hollow screw rod and impale a wall of the resin die by a steel needle, a certain length of the fiber is embedded, and the spring clip clamps a free end of the fiber outside the sleeve. The testing method is based on single fiber pull-out technology, and the method comprises the following steps: fibers are embedded into the resin die, and the embedding length is regulated; resin is cast in order to prepare a testing sample; demoulding is carried out for a single fiber pull-out test, and the interfacial shear strength of the composite material is calculated. The device has a simple structure, and can be used for solving difficulties of sample preparation for the single fiber pull-out test of fiber and the like; the interface test method is convenient and rapid to operate.

The invention belongs to the technical field of environmental protection, and relates to a thermal regeneration technology of an asphalt material, in particular to a device and a method for evaluatingdiffusivity of a regenerant in aged asphalt by eliminating interface influence. In the prior art, after a regenerant and aged asphalt are naturally mixed and dissolved, an asphalt sample is sampled,the regenerant left on the interface of the asphalt and regenerant will influence the testing result severely. According to the technical scheme, the method sequentially comprises the following stepsthat a gasket is arranged on the upper portion of an asphalt sample containing device, and aged asphalt is poured into the asphalt sample containing device till the aged asphalt is flush with the upper surface of the gasket; a regenerant sample containing device is arranged at the upper part of the gasket, and a regenerant is added; high-temperature regeneration treatment is carried out on the aged asphalt added with the regenerant; after the regeneration treatment is finished, the regenerant is removed, and then the miscible substance of the asphalt and the regenerant at the corresponding part of the gasket is removed; an asphalt sample in the asphalt sample containing device is collected for performance test, so that the diffusivity of the regenerant in the aged asphalt is evaluated.

A method and apparatus for super-resolution reconstruction of remote sensing images based on mix random downsampling are provided in that embodiments of the present invention. The method comprises thefollowing steps: the multi-scale metre-resolution optical remote sensing images of the target to be reconstructed are mixed and randomly downsampled to obtain a high-resolution image matrix and a low-resolution image matrix, and a high-resolution image block mapping matrix and a low-resolution image block mapping matrix are constructed; A super-resolution reconstruction model for optical remote sensing image super-resolution reconstruction is obtained by using that high-resolution and low-resolution image block mapping matrix as a training sample and carrying out depth learning training; A superresolution reconstruction is performed on an optical remote sensing image of an object to be reconstruct based on that superresolution reconstruction model. Considering the optical imaging characteristics of satellite sensor load, a hybrid stochastic desampling model is used to generate low-resolution image of optical sensor, which enhances the scene adaptability of super-resolution reconstruction model, processing accuracy and reliability of the results.

The invention provides an ultrasonic detection method for bonding quality. The ultrasonic detection method comprises: 1, before the front edge of a composite material blade is not bonded to a metal overlap, detecting the front edge position by using an ultrasonic water spraying penetration C scanning method, and eliminating the composite material blade with the defect at the front edge position; 2, after the composite material blade with the defect-free front edge is bonded to a metal overlap, detecting the blade overlapping position by using the ultrasonic water spraying penetration C scanning method, determining the horizontal position of the debonding defect, and marking; and 3, respectively detecting the front surface and the back surface of the marking position by using a high-resolution retarding block probe, and through the height of the reflected ultrasonic wave pulse formed by the composite material/metal/air interface wave of the surface, determining the surface at which thedebonding defect is generated. With the method of the present invention, the debonding defect with the diameter of not more than 5 mm can be rapidly and accurately detected, the surface at which the debonding is generated can be accurately determined, and the design and rework requirements of the product can be met.

The invention relates to petrology and mineralogy, in particular to a method for measuring organic matter content of coal gangue. The method comprises: grinding air-dried coal gangue, screening, taking a sample, measuring mass loss with a thermogravimetric analyzer, and calculating the organic matter content of the coal gangue. The calculation of organic matters in coal gangue innovatively through mass loss replaces the complex organics-measuring steps of the traditional titration; a temperature rise range of 35-800 DEG C is determined, the temperature of 800 DEG C is held for 10 min, the temperature rise rate is 15 DEG C per min, atmospheric simulation air is N2:O2=79:21, and atmospheric total mass is 100 ml/min; compared with the results of organic matter measurement by the existing common titration method, the method has a standard deviation and a deviation ratio of 0.30 and <4%; correlation of organic matter contents from measurements by the two methods is up to 0.9991. The method for measuring organic matters in coal gangue according to the invention has the advantages of good simplicity, good convenience, and high test result precision.

A tailpiece for a dental valve device is disclosed which has a body having a valve receiving end, a hose receiving end, and a hose retaining section having a hose insertion section, an inclined section, a first flat section, a first tapered ring section having a central section, a second flat section, a second tapered ring section having a central section, and a third flat section.

The invention relates to a methanol concentration sensing probe. The probe which comprises an insulation substrate, a cathode layer and an anode layer is characterized in that the cathode layer and the anode layer are respectively combined with the surface of the insulation substrate; the cathode layer has a plurality of cathode contacts which are alternately assigned on the surface of the insulation substrate, wherein one ends of the cathode contacts are connected together; the anode layer has a plurality of anode contacts which are alternately assigned on the surface of the insulation substrate, wherein the anode contacts are connected together; and the cathode contacts and the anode contacts are alternately assigned. The invention also relates to a methanol concentration sensor with the methanol concentration sensing probe and a methanol concentration sensing method. The methanol concentration sensing probe has the advantages of simple and compact structure, small occupation space, and accurate and rapidly obtained measure result. There is an obvious potential difference between the cathode layer and the anode layer in a methanol solution during measuring, and the methanol concentration can be obtained by measuring the potential difference between the cathode and the anode, so the measure result is accurate through above potential difference measure mode, and the methanol concentration measure is convenient and rapid.

The invention discloses a laser interference image quality evaluation method. The method comprises the steps of acquiring a laser interference image and a corresponding reference image; using the sameconvolution network to respectively carry out convolution pooling operation of multiple times of different level feature extraction on the laser interference image and the reference image in sequence; and calculating the similarity between the feature vectors obtained when the laser interference image and the reference image are subjected to the same convolution pooling, and carrying out weightedcalculation on all the similarities to obtain an image quality score. According to the method, the convolutional network is introduced into laser interference image quality evaluation, the distortiondegree of the interference image is measured by utilizing the similarity of the output features of the reference image and the interference image in each convolutional layer of the convolutional network, and the hierarchy of the features extracted by the convolutional network and the sensitivity to occlusion are fully utilized. Besides, the similarity values corresponding to all convolution pooling are subjected to weighted calculation, the final evaluation score conforms to the actual subjective perception of human eyes, the reliability is high, the positions of a target and a light spot donot need to be detected, and the application scene is wide.

The invention discloses a torque manager detection method and system. The method comprises the steps that a gearbox gear control signal and an accelerator pedal control signal are controlled and maintained to be constant; oil pump pressure is controlled through a torque manager according to the preset rules so that a four-wheel-drive drum is enabled to output target torque; whether the target torque is in the preset range is judged, wherein the preset range is the range of theoretical torque outputted by the four-wheel-drive drum when the gearbox gear control signal and the accelerator pedal control signal are maintained to be constant and the torque manager controls the oil pump pressure according to the preset rules; and the torque manager is qualified if the judgment result is yes. According to the method and the system, offline detection work of the torque manager can be performed on the complete vehicle after completion of production in the main engine plant with no requirement for the rack so that operation is easy and can cover all the torque output range.

The invention discloses a sensing type fixed pulley testing system for monitoring a dynamic compaction operation process and a method of the sensing type fixed pulley testing system. The system comprises a ring code fixed pulley and a logic controller, wherein a ring of annular bar codes is arranged on the inner wall of the ring code fixed pulley, a code scanner scans the bar codes to read the number of turns of the ring code fixed pulley and an angle between any two bar code locations, wherein the angle is accurate to 0.5 degree; the shaft of the ring code fixed pulley is a matched shaft pin type force measuring sensor which is fixed on a support arm through a bolt to measure the pressure born by a wheel axle of the ring code fixed pulley in real time; the logic controller receives and processes real-time data from the shaft pin type force measuring sensor and the code scanner to be calculated and output to a display, so that the display can display the drop distance, the hammer weight and the tamping energy, and when requirements are not met, an alarm gives an alarm to monitor the dynamic compaction construction quality in real time.

The invention discloses a device for automatically detecting flexibility of a chain link of a chain, which comprises a movement mechanism and two sets of detection mechanisms. The movement mechanism comprises two opposite transmissions, a chain straight passage, an assembly for forwards folding the chain link of the chain and an assembly for reversely folding the chain link of the chain; each detection mechanism comprises a detection tongue, a sensor, a delayer, a clamping device and a painting device; and when the chain link of the chain cannot be recovered to a linear state to be in contact with the detection tongues after being folded forwards or reversely, abnormal signals are transmitted to the delayers by the sensors, the clamping devices are controlled to fix the chain by the delayers and simultaneously, the painting devices are controlled to paint identification color at the problem positions. According to the scheme adopted by the invention, the movement mechanism and the two sets of detection mechanisms are matched to be combined into one complete automatic detection device; the device has a simple structure and is convenient to manufacture; and detection efficiency is greatly improved; and result reliability is improved.

An object to be solved by the present invention is to determine the dissociation constant of an analyte molecule immobilized on a metal surface and a molecule that interacts therewith in surface plasmon resonance (SPR) analysis via an analytical method that produces a low noise level (i.e., a noise width of a reference chip), small baseline fluctuations (i.e., signal changes of a reference chip), and highly reliable results of measurement. The present invention provides a method for determining a dissociation constant of an analyte molecule immobilized on a metal surface and a molecule that interacts therewith, wherein changes in surface plasmon resonance signals are measured by using a surface plasmon resonance measurement device comprising a flow channel system having a cell formed on a metal film and a light-detecting means for detecting the state of surface plasmon resonance by measuring the intensity of a light beam totally reflected on the metal film; wherein a change in surface plasmon resonance signals is measured in a state where the flow of the liquid has been stopped, after the liquid contained in the above flow channel system has been exchanged; and wherein the dissociation constant is determined based on the results of measurement of signal changes.

A 2D (two-dimensional) laser positioning method of a door and a window on a train body of a train includes a process of performing calibration measurement on the train body of the train, wherein the process includes the steps of: first, manually moving an AGV (automatic guided vehicle) to a working station, positioning the AGV through visual observation, and setting the center position of a door and window frame as the manipulator base coordinate origin; indicating a manipulator to operate, and saving a trajectory of the manipulator as a work trajectory; indicating the manipulator to perform the calibration measurement; performing the calibration measurement on trisection positions of each edge of the frame, indicating the manipulator to carry a 2D sensor for scanning the 2D outline of theframe and record data, then calculating out six freedom degree coordinate value of the frame, and using the coordinate value as calibration position value; keeping a calibration measurement path of the manipulator as a path of following measurement work; and then moving the AGV to all stations to perform operation, calculating coordinate deviation between the current frame coordinate and the calibration position value, invoking the work trajectory of the manipulator, compensating the coordinate deviation, and obtaining a new work trajectory. The 2D laser positioning method of the door and thewindow on the train body of the train improves robustness and usability of a system, and is easy in calibration.

The invention provides a method for determining formation time of corn pollen tube pathways. The method comprises steps as follows: bagging, pollination, cutting up of bracteal leaves, removal of filaments and recovery of the bracteal leaves to original state, specifically, the filaments are removed every 1-3 h, temperature and humidity are recorded in real time, female spikes are taken back during harvesting, the number of mature grains is counted, and the formation time of the corn pollen tube pathways is determined according to the time of filament removal and the average number of mature grains. The method is implemented in the fields and is closest to the actual planting condition, and a result is high in reliability; steps of the method are simple and are easily mastered and operated by technical personnel in the field; the method is high in feasibility and good in repeatability and can be used for different materials; besides, the method has lower requirements for operation conditions and is low in cost.

The invention provides a cluster wind power field fluctuation modeling method. The method comprises the following steps: S1, defining a relative first-order center distance mathematic model, a relative third-order center distance mathematic model and a relative fourth-order center distance mathematic model of area wind power field cluster fluctuations; S2, establishing a standard deviation, a bias and a kurtosis classic indicator of a cluster wind power field; S3, establishing a inter-wind-power-field correlation coefficient and field interval index relation model and a standard deviation and wind power field average utilization hour polynomial relation model; S4, according to the output historical data and geographical information of a typical area wind power field cluster, obtaining modeling correlation parameters by use of a least square method; S5, by use of a target wind power field cluster field interval, by means of a specifically established filed interval and correlation coefficient index relation model, solving a center distance factor; S6, by use of a target wind power field average utilization hour quantity, by means of the specifically established standard deviation and average utilization hour quantity polynomial relation model, solving the standard deviation; and S7, calculating the standard deviation, the bias and the kurtosis of an area wind power field cluster fluctuation indicator, and analyzing a cluster wind power field fluctuation characteristic.

The invention discloses a method for preparing a novel genome simplified methylation sequencing library. The method comprises the following steps: respectively performing enzyme digestion on genome DNA by using two dual enzyme digestion combinations of EcoRI/MspI and EcoRI/HapII, and purifying fragments after enzyme digestion; designing a specific connection primer for connecting the purified DNA fragments; dividing the connected products into two groups, and mixing into two tanks; purifying mixing tank samples and recycling fragments of 300-400bp through agarose gel electrophoresis; and performing PCR enrichment and agarose gel electrophoresis recycling on the recycled fragments, thereby obtaining the sequencing library. The method has the advantages of high cover rate, low redundancy, high sensitivity, large-scale sample, high cost performance ratio, high result reliability, good experiment repeatability, and the like, and is generally applicable to various genome methylation difference studies in ordinary molecular biological laboratories.

The invention discloses a method, a system, a device and a medium for analyzing a mass spectrum ion peak of an organic matter, and relates to mass spectrometry detection. The method comprises: acquiring a mass-to-charge ratio m/z of the organic matter ion peak to be analyzed, and determining the mass m of an ion to be analyzed and corresponding to the ion peak; rounding the mass m of the ion to beanalyzed to obtain an ion mass integer m1; determining chemical formulas of all candidate ions corresponding to the ion peak according to a preset condition; acquiring the theoretical mass m2 of allthe corresponding candidate ions, and calculating absolute values | m- m2 | of differences between the theoretical mass m2 and the mass m of the ion to be analyzed; acquiring an error threshold e of the ion mass according to a resolution ratio of a mass spectrometer; and selecting the chemical formulas with the absolute values | m-m2 | smaller than the error threshold e. The method, the system, the device and the medium have the beneficial effect that by being used for analyzing the mass spectrum ion peak of the organic matter only containing three elements of carbon, hydrogen and oxygen, being helpful for accurately selecting out possible ion chemical formulas, and thereby greatly improving the structural analysis efficiency and result reliability of an unknown chemical.

The invention relates to a testing device for a telescopic shock absorber. The device comprises an upper fixture and a lower fixture, wherein the upper fixture comprises an adjustable upper fixture seat, a force application claw and an adjustment lever; the adjustable upper fixture seat is capable of realizing fixed installation of the upper fixture on a test bed; the adjustment lever and the force application claw are capable of realizing equivalent force application of a superposition valve; the lower fixture comprises a lower fixture seat, a positioning rod, an adjustable supporting seat, the superposition valve, a gasket, a pressure pad, a nut and an adjustment lever; the lower fixture seat is a mounting base of the superposition valve; the positioning rod is a cylindrical guide mechanism and is capable of realizing positioned installation of the adjustable supporting seat, the superposition valve, the gasket, the pressure pad and the nut; and the adjustable supporting seat realizes support of the superposition valve, the superposition valve is constrained by utilizing the upper-end gasket and the lower-end gasket, and radial displacement adjustment of the supporting claw is realized by the adjustment lever. The device is capable of characterizing stiffness of the valve by virtue of a relation between the force and displacement. The device has the advantages of being simplein structure, convenient to use and excellent in universality.

The invention belongs to the technical field of biomedicine, and particularly discloses a micro RNA marker combination related to gestational diabetes and application thereof. The micro RNA marker combination comprises miR-132 and miR-375. The invention further discloses a preparation method of the micro RNA marker combination. The miR-132 and the miR-375 are located in peripheral blood serum or blood plasma. The miR-132 and the miR-375 can be used as diagnostic markers for the gestational diabetes, and a basis is provided for early diagnosis of the gestational diabetes mellitus.

A bowl is disclosed having a basin portion having a slanted back wall portion, a bottom portion, a front straight wall portion, a pair of side wall portions, and a top portion, and a handle extending from the top portion.