59results about How to "Guaranteed sensitivity" patented technology

This invention discloses a hydraulic piston for an air booster pump, relating to the technical field of hydraulic pistons for air booster pumps. It includes a push rod, one end of which has a positioning insert that can pass through a brake piston, and the other end is a connecting end that connects to an air chamber piston. A sealing gasket is provided between the brake piston and the push rod for sealing connection. The diameter of the free end of the sealing gasket is smaller than the diameter of the contact surface of the push rod. This application eliminates the push rod seat connecting the brake piston and the push rod in conventional air booster pumps, ensuring braking sensitivity and thus increasing safety. This application achieves rapid and sensitive response by directly connecting the brake piston and the push rod, improving braking safety and saving braking reaction time.

The application belongs to the technical field of drying processing, in particular to a drying device for an ice crystal production line, which comprises a butt joint component, left and right sides of the butt joint component are symmetrically provided with traction components, a drying component is arranged on one side of the top of the traction component close to the butt joint component, and a pressurizing component is arranged on the other side of the top of the traction component away from the butt joint component; the pressurizing component comprises an outer rotating cylinder shell, and an oil tank is fixedly connected to the shaft center of the inner cavity of the outer rotating cylinder shell. The device can simultaneously spray fire from the inside and outside of the mesh baffle through the inner flame spray head and the ignition lance, uniformly heat the ice crystal inside and outside of the mesh baffle, and avoid the problems of uneven heating of the ice crystal and over-drying of the ice crystal, thereby avoiding the problem of burning of the ice crystal.

The invention discloses a quantum classical mixed image classification method based on group isovariant and delayed aggregation. The method comprises the following steps: lifting a convolution module, inputting a target image, initializing a convolution kernel and rotating the convolution kernel, and carrying out convolution and stacking on the target image to obtain an output image; the group convolution module is used for converting the output image of the convolution module into an image sample and carrying out convolution and reverse remodeling operation to obtain an output image; the group pooling and flattening module is used for carrying out adaptive average pooling on an output image of the group convolution module, compressing the output image into a feature vector and obtaining an output feature vector; the group equivariant quantum feature processing module encodes the feature vectors to quantum bits according to the feature vectors output by the group pooling and flattening module; and the delay aggregation and output module measures the quantum bits, aggregates and classifies measurement results, and completes classification of target images. The method provided by the invention has strong nonlinear feature fusion capability, and can realize more accurate image classification.

The invention relates to the technical field of heat management, provides a self-adaptive enhanced heat exchange method based on a high-temperature shape memory alloy, and further provides a self-adaptive enhanced heat exchange channel which is composed of a heat exchange channel pipe wall and a plurality of self-adaptive fins arranged on the outer side or the inner side of the pipe wall. The self-adaptive fin is of an integrated three-section structure and comprises a base connecting section, a functional gradient transition section and a self-adaptive functional section. Shape memory training is conducted on the self-adaptive fins or the self-adaptive functional sections, so that the self-adaptive functional sections have the temperature-induced deformation capacity; according to the thermal environment, the self-adaptive fins are automatically switched between the low-temperature / low-thermal-load state and the high-temperature / high-thermal-load state, and intelligent regulation and control over the heat exchange process are achieved. According to the self-adaptive heat transfer material, on-demand intelligent regulation and control of the heat exchange performance are achieved, the fixed tradeoff relation between the performance and the resistance is broken, and the technical problem that an existing self-adaptive heat transfer material cannot meet the high-temperature environment application requirement is effectively solved.

This utility model discloses a root-sensing drip irrigation tape, belonging to the field of irrigation equipment. It includes a water guide pipe, with a drip irrigation plate fixedly connected to its lower end. Multiple fixed cylinders and multiple sprinkler heads are fixedly connected to the lower end of the drip irrigation plate, arranged in a staggered pattern. Multiple micro-holes are opened at the outer end of the fixed cylinders, and multiple water passage holes corresponding to the sprinkler heads are opened in the middle of the drip irrigation plate. Liquid-guiding cotton is placed inside the fixed cylinders and embedded in the lower end of the drip irrigation plate. Perforations are opened in the inner wall of the water passage holes, and a sealing gasket is slidably connected within the perforations. Sensing cotton is fixedly connected between the sealing gasket and the liquid-guiding cotton. This allows the sensing cotton to absorb water, causing it to expand and push the sealing gasket to block the water passage holes, preventing over-irrigation. When water is scarce, the sensing cotton contracts, causing the sealing gasket to retract and opening the water passage holes to replenish water. This allows for precise matching of the real-time water demand of the plant roots, reducing ineffective water consumption and significantly saving water resources.

The application relates to an emission type computer tomography detector. The detector comprises a plurality of semiconductor wafers, a crystal array and a circuit board. Each semiconductor wafer is a silicon photomultiplier chip body, the crystal array comprises a plurality of regularly arranged crystals, one or more semiconductor wafers are arranged on each crystal, and the semiconductor wafer and the corresponding crystal are integrally packaged; the circuit board is arranged on one side of the crystal array, and each semiconductor wafer is electrically connected with the circuit board. The semiconductor wafer is integrally packaged with the crystal, i.e. the glass cover plate and the substrate can be cancelled, when the crystal receives gamma photons, the fluorescence emitted by the crystal can directly enter the semiconductor wafer without passing through the glass cover plate, thereby avoiding the loss of the fluorescence when the fluorescence passes through the glass cover plate and the silicon oil, so that the performance of the detector is improved.

The invention discloses a polyimide-based piezoelectric damping heat generation material and a preparation method thereof. The piezoelectric damping heat generation material comprises the following components in parts by weight: 85-95 parts of a modified polyimide matrix, 3-8 parts of hydroxylated carbon nanotubes and 2-5 parts of a metal organic framework, and the piezoresistive sensitivity of the piezoelectric damping heat generation material is 1.8-3.2 kPa <-1 >; through the design of the modified polyimide matrix and the hydroxylated CNT-MOF composite filler, a uniform conductive network and a porous heat dissipation adjusting structure are constructed, the heating efficiency is improved to 65% or above, meanwhile, the piezoresistive sensitivity and the damping coefficient are guaranteed, and the technical problems that an existing material is low in heating efficiency, poor in uniformity and difficult to cooperate in performance are solved.

This application provides a water purifier, including a water circuit board, a faucet, an indicator light, and a detection element disposed within a water flow channel. The detection element includes a movable component; when the movable component is in a first state, it is stationary within the water flow channel, or it is in a first position; when the movable component is in a second state, it rotates within the water flow channel, or it is in a second position; and a sensing element disposed on the board. When water flows within the water flow channel, the movable component switches from the first state to the second state, and the sensing element transmits a sensing signal to activate the indicator light; when water stops flowing within the water flow channel, the movable component switches from the second state to the first state, and the indicator light turns off. This application detects the water flow within the water circuit board through the movement state and position of the movable component, and the indicator light on the faucet displays the water purifier's usage status to the user.

The invention provides a Pt / PEDOT composite modified carbon-based material needle-shaped electrode in-vivo dissolved oxygen electrochemical sensor as well as a construction method and application thereof, and belongs to the technical field of medical biology. According to the in-vivo dissolved oxygen electrochemical sensor, a carbon-based material microneedle type electrode is modified by electrochemical deposition of platinum nanoparticles by using a chloroplatinic acid hexahydrate solution and depending on a time current method, and poly (3, 4-ethylenedioxythiophene) is generated by direct electro-polymerization on the surface of the Pt-modified microneedle electrode through an electrochemical constant current method. And forming uniform PEDOT (poly (3, 4-ethylenedioxythiophene)) film coated and modified platinum nanoparticles on the microneedle electrode. The composite modified carbon-based material is used for replacing precious metal to reduce cost and improve biocompatibility, low-oxygen sensitivity is optimized by means of composite modification, in-vivo protein adsorption and biological membrane coverage are resisted through anti-pollution surface modification, and therefore the defects are overcome, and monitoring of in-vivo tissue oxygen partial pressure is achieved.

The present application belongs to the technical field of inspection robots, and particularly relates to a track traffic intelligent inspection robot navigation system with self-adaptive environment perception, which comprises a joint state acquisition module, a contact feature extraction module, a navigation factor calculation module, an impedance adjustment and chassis deviation correction module, an acquisition of joint state vectors and electromagnetic driving torque vectors, a calculation of external contact torque according to the joint state vectors and the electromagnetic driving torque vectors, an acquisition of contact force feature indexes of the mechanical arm end, an acquisition of lateral deviation navigation factors of the chassis pose according to the difference between the contact force feature indexes and the reference force indexes, an acquisition of adaptive correction angular velocities of the mobile chassis according to the lateral deviation navigation factors, and a navigation according to adaptive target stiffness values obtained according to the time domain fluctuation characteristics of the contact force feature indexes. The present application improves the navigation accuracy and environmental robustness of the inspection robot.

The utility model relates to the field of shock absorbers, in particular to a double-adjusting shock absorber with a sliding barrel with high sealing performance, which has the characteristics of high sealing performance, stable structure and flexible damping adjustment. Comprising a mounting base, a hydraulic cylinder, a sliding cylinder, a piston rod, a piston, a first spring, a sealing cover, a first supporting base, a second supporting base, a first damping adjusting assembly, a second damping adjusting assembly and an air bag assembly, and the mounting base is provided with a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove; the bottom of the first installation groove is concavely provided with a groove which is coaxially distributed, a first flow channel is arranged between the first installation groove and the second installation groove, a second flow channel is arranged between the groove and the third installation groove, and a third flow channel is arranged among the second installation groove, the third installation groove and the fourth installation groove. The sealing cover is arranged at the lower end of the hydraulic cylinder and the lower end of the sliding cylinder and comprises an outer cover, a sealing piece, a sealing ring, an ejection piece and a lining.

This invention discloses a bivalent anti-Vibrio parahaemolyticus nanobody, its preparation method, a self-sandwich ELISA kit, and a detection method. The aim is to provide a bivalent anti-Vibrio parahaemolyticus nanobody, kit, and detection method with high accuracy, specificity, and sensitivity for detecting Vibrio parahaemolyticus. The amino acid sequence of the bivalent anti-Vibrio parahaemolyticus nanobody is shown in SEQ ID NO.7. This invention belongs to the field of biodetection technology.

The present application relates to the technical field of medical detection, and particularly relates to a high-hook-capability and anti-interference HBP detection kit, which comprises R1 reagent and R2 reagent; 3-[3-(cholylamido propyl) dimethylamino] propanesulfonic acid inner salt and sodium dodecyl sulfate are used to prepare the reagent R1, and by adjusting the use ratio of the two, the mutual cooperation of the two can ensure the reaction sensitivity of the reagent and improve the anti-interference performance of the reagent; two kinds of latex microspheres with different particle sizes are used to coat two kinds of HBP antibodies with different antigen recognition epitopes in the reagent R2, which can not only ensure that the reagent has a wider detection range in the high value area and improve the hook capability, but also ensure the sensitivity of the kit; the activation system adopts the method of combining two activators of NHS and EDC, which can effectively improve the coupling efficiency. Meanwhile, the present application also provides a preparation method of the high-hook-capability and anti-interference HBP detection kit, which does not need centrifugation and resuspension operation steps, and the method operation is simpler and the production cost is lower.

The application provides a building fire-fighting early warning system and method, and belongs to the technical field of building fire-fighting safety. The application synchronously collects temperature, smoke concentration and carbon monoxide concentration data in each monitoring area of a building, calculates the deviation degree of sensor sliding window variance and baseline variance, evaluates the reliability index of each sensor in real time and generates adaptive fusion weight, simultaneously detects and isolates the fault sensor through time sequence deviation residual analysis, evaluates the consistency between sensors and generates a correction weight, relies on the dynamic update of the environment baseline based on the exponential weighted moving average, generates a graded early warning threshold for each area and triggers the corresponding response measures. The application effectively improves the robustness of the system under the condition of sensor failure, enhances the fusion accuracy in the multi-sensor conflict scene, realizes the early prediction of the fire spread situation, reduces the false alarm rate while maintaining a high fire detection sensitivity and a short detection response time.

An optical path device, an optical detection method and a detection device, the optical path device comprising a side incidence optical path assembly and a lens assembly, the side incidence optical path assembly comprising a detection light source and an expander mirror set, the detection light source providing an incident light beam, the expander mirror set being configured to spread and shape the incident light beam in a first direction to form parallel first direction detection light beams and to spread and shape the incident light beam in a second direction to form non-parallel second direction detection light beams; the first direction detection light beams exiting the lens assembly to form a light spot on a surface to be detected of an object to be detected; the second direction detection light beams non-parallelly entering a surface of the lens assembly and having a beam size, the second direction detection light beams exiting the lens assembly to the surface to be detected and forming the light spot. The present application provides a detection optical path avoiding a central aperture of the lens assembly, which can effectively reduce the risk of lens damage and achieve more reliable and efficient wafer defect detection.

The application provides a microorganism automatic detection turntable and device, which comprises a top plate, a middle layer plate, a one-way conduction structure and a bottom plate which are fixed and connected in sequence from top to bottom, and the top plate is slidably connected with the middle layer plate; a sample chamber is arranged on the top plate, and a plurality of detection structures are arranged on the top plate in a circumferential distribution; the detection structure comprises a nucleic acid extraction chamber, a washing liquid chamber and a nucleic acid detection chamber, and the sample chamber is communicated with the nucleic acid extraction chamber; a plurality of bacterial interception structures are arranged on the middle layer plate in a circumferential distribution, the bacterial interception structure is used for intercepting bacteria in a to-be-detected solution, and waste liquid is discharged to the bottom plate through the one-way conduction structure; the one-way conduction structure is used for preventing the waste liquid discharged to the bottom plate from flowing back to the bacterial interception structure; and a plurality of waste liquid storage structures are arranged on the bottom plate in a circumferential distribution. The application realizes rapid and simple detection of foodborne pathogenic bacteria and reduces the dependence on large instruments and technical personnel.

The invention discloses a solution concentration detection device and a method thereof. The solution concentration detection device comprises a light source for generating initial light; the optical splitter is used for splitting the initial light into detection light and reference light; the two-way accommodating cavity comprises a to-be-detected solution accommodating cavity for accommodating a to-be-detected solution and a reference solution accommodating cavity for accommodating a reference solution; the detection light is transmitted through the to-be-detected solution to form to-be-detected signal light; the reference light is transmitted through the reference solution to form reference signal light; the detection processing module is configured to obtain a phase difference between the signal light to be detected and the reference signal light; the detection processing module is further configured to obtain the concentration of the solution to be detected according to the phase difference and the concentration of the reference solution. The reference solution with the known concentration is introduced as a contrast path to be compared with the to-be-detected solution, and the concentration of the to-be-detected solution is inverted through the phase difference between the to-be-detected signal light and the reference signal light, so that the precision of a solution concentration detection result can be effectively improved.

An APTT detection reagent, a preparation method and application thereof. The APTT detection reagent comprises an R1 reagent and an R2 reagent, the R1 reagent comprises a phospholipid mixture selected from any two of phosphatidylserine, phosphatidylethanolamine and phosphatidylcholine; and the concentration of the phospholipid mixture ranges from 0.1 g / L to 1 g / L. The APTT detection reagent improves the sensitivity of the APTT reagent to LA patients and the APTT detection has improved thermal stability.

The utility model discloses a sealed big stroke with wire formula micro switch, belongs to micro switch technical field, including the press handle of axially mobile setting in the shell, and the press handle one end is located the outside of shell as operating end, and the other end is located the inside of shell and is equipped with the first step surface of radial protruding, the press handle inside axially is provided with small spring and lower end and is equipped with the push rod of second step surface, the push rod lower end sets up in the base and passes through the inside step limit hole of base and is contacted with micro switch unit, the press handle outside is equipped with big spring and is pre -compression between the first step surface of press handle and the inner wall step surface of base, small spring is contained in the inner chamber of press handle, and is pre -compression in the upper end surface of push rod. This switch has solved the problem that the existing micro switch is damaged internal structural member because of small stroke and is easy to cause overpressure when installing and using, and has reduced the installation precision of switch to driving mechanism.

This application relates to the technical field of bioassay, specifically disclosing a combined detection kit for pepsinogen I and pepsinogen II and its application. The disclosed combined detection kit for pepsinogen I and pepsinogen II includes: a sample pad, a conjugate pad, a coating membrane, and an absorbent pad; the coating membrane is an NC membrane coated with antibody; the conjugate pad is prepared by pretreating and drying a fiber membrane, followed by spraying time-resolved fluorescent microspheres labeled with antibody; the pretreating solution is a solution of pH 8.0-8.4 + 8-12mM BS + 0.8-1.2% BSA + 0.8-1.2% PEG4000 + 0.02-0.03% surfactant + 4-6% sucrose. Using the detection kit and method provided in this application for the combined detection of pepsinogen I / pepsinogen II exhibits high sensitivity, accuracy, and repeatability.

The invention provides a preparation method of an SERS (Surface Enhanced Raman Scattering) substrate based on a gold-silver polyhedron alloy nano frame. The preparation method comprises the following steps: preparing gold polyhedrons with different sizes through a'three-step 'seed growth method; sequentially adding chloroplatinic acid and chloroauric acid to react to form a hollow platinum framework; further adding chloroplatinic acid, silver nitrate and ascorbic acid to prepare a hollow gold-platinum polyhedral nano material; treating by sodium iodide and chloroplatinic acid to obtain a platinum-gold-platinum alloyed nano material, and removing internal gold by using chloroauric acid to form a new platinum framework; selectively depositing gold or silver on the surface to obtain a platinum-gold or platinum-silver alloyed nano material; the gold and silver alloyed nano-frame material is prepared by mixing the gold and silver alloyed nano-frame material and is applied to detection of nitrophenol. The alloy nano-frame can significantly improve the sensitivity and stability of p-nitrophenol detection, and has a good application prospect.

This utility model discloses a portable rapid eutrophication detector, including a detection box. A detection port is opened on the top surface of the detection box, and a movable platform is fitted into the detection port. A detection probe is installed on the bottom surface of the movable platform. Movable discs are installed inside the detection box, and a base plate is fixed between two movable discs. A sample container and a calibration container are respectively fixed on the top surface of the base plate. A cleaning hole penetrates through the center of the base plate, and the detection probe is movably connected to the cleaning hole. A storage cavity is opened at the bottom of the base plate. A cleaning box is fixed to the bottom surface inside the detection box, and a spray head is arrayed on the top surface of the cleaning box. A display panel is installed on the front of the movable platform. The automatic detection method achieves efficient and accurate detection, greatly improving the efficiency and reliability of eutrophication monitoring. After detection, the container is automatically rotated 180 degrees to automatically discharge waste liquid, while the high-pressure spray head rinses the inner wall of the container to prevent cross-contamination.

The present application relates to the technical field of power system distribution network operation monitoring and line loss analysis, and discloses a transformer area line loss anomaly analysis method, system, equipment and medium based on source-network-load-storage cooperation, which comprises the following steps: fusing multi-source heterogeneous data through time synchronization and nonlinear interpolation to construct a unified feature vector; adopting a line loss calculation model fused with a storage energy dynamic correction term to accurately calculate the actual loss of the transformer area; identifying line loss anomalies through a dynamic self-adaptive algorithm based on historical statistics and instantaneous change trend; and positioning anomalies to specific sides of source, network, load and storage through multi-source residual contribution degree analysis. The present application effectively improves the accuracy of complex distribution transformer area line loss calculation, the sensitivity and robustness of anomaly detection, and realizes the explainable and accurate positioning of anomaly sources.

The utility model discloses a secret chamber alarm device, include: installation frame, installation frame is fixed on the wall, install the block, alarm main body is fixed on the install block, and the recess is established to the one side of installation frame of install block, fixed mechanism, and the fixed mechanism is fixed between install block and installation frame, dismantle alarm mechanism, dismantle alarm mechanism includes parallelly -arranged first backing pad, second backing pad, third backing pad, fourth backing pad, and a plurality of first connecting rods are fixed between third backing pad and first backing pad, and second connecting rod is fixed between second backing pad and fourth backing pad, and first spring is fixed between third backing pad and second backing pad, fourth backing pad and first backing pad respectively, and the opposite side of third backing pad and fourth backing pad is fixed with touch head and touch switch respectively, and the alarm main body is installed with audible -visual alarm. The utility model discloses the setting of dismantle alarm mechanism, can timely trigger audible -visual alarm, prevents the information or article in the secret chamber and is stolen.

The application discloses a current probe for non-contact cable fault detection, two flange connectors are arranged on a ring-shaped shielding shell, a first flange connector is used as a current injection probe, and a second flange connector is used as a current detection probe, a core wire of the first flange connector is connected with one end of a copper band, the other end of the copper band is fixed in the first half-circular ring-shaped shielding shell after being wound around a first half-circular magnetic ring and a second half-circular magnetic ring once, one end of a wrapped wire of the second flange connector is connected with a core wire, and the other end of the wrapped wire is fixed in the second half-circular ring-shaped shielding shell after being wound around a third half-circular magnetic ring and a fourth half-circular magnetic ring eight times. The original connection of the contact type cable fault detection needs to be disconnected, and the technical problem that the cable is damaged twice.

This application relates to the technical field of clinical therapeutic drug monitoring, specifically disclosing a detection kit and method for triazole antifungal drugs. The triazole antifungal drug detection kit disclosed in this application includes an in-situ ionization kit and an isotope internal standard working solution; the isotope internal standard working solution is diluted with acetonitrile, isopropanol, and ammonium acetate in a volume ratio of 20:(5-10):(1-5). This application also discloses a method for detecting triazole antifungal drugs using the above detection kit. The detection kit and method provided in this application for quantitative detection of triazole antifungal drugs have the advantages of simple operation, on-demand testing, and speed, and the detection accuracy is high. It can provide immediate feedback on the blood drug concentration in the patient, thereby adjusting the dosage and maximizing patient benefit.

The application provides a lens module and a laser cutting head, and relates to the field of laser cutting. The lens module comprises a working lens module, a fixed support seat and a temperature field detection module; a temperature sensing surface of the temperature field detection module is arranged towards the working lens module, and the temperature field detection module is configured to monitor the temperature of the working lens. Based on the lens module provided by the application, the application further provides a laser cutting head, wherein the first protective lens module, the collimating lens module, the focusing lens module and the second protective lens module are sequentially arranged in the axial direction of the laser cutting head; and the second protective lens module is close to the nozzle of the laser cutting head. The lens module and the laser cutting head provided by the application can realize the monitoring and feedback of the lens temperature based on the reasonable arrangement of the temperature field detection module, thereby enhancing the safety and reliability of the product, improving the user experience, and assisting data analysis and optimization.

The invention discloses a method for quantitatively detecting cucumber green mottle mosaic virus (CGMMV) infectious viruses in watermelon seeds based on propionium bromide azide (PMA) pretreatment and reverse transcription quantitative polymerase chain reaction (RT-qPCR). The method comprises the following steps: S1, preparing a seed suspension containing virus particles; s2, grouping the suspensions, adding PMA with the final concentration of 150-170 [mu] M into a PMA treatment group, incubating for 20-40 min in a dark place, then carrying out blue light (460-490 nm) irradiation to enable PMA to selectively inhibit non-infectious virus nucleic acid amplification, and not adding PMA into a control group or carrying out inactivation treatment on the control group; s3, extracting nucleic acid, and carrying out RT-qPCR (real-time quantitative polymerase chain reaction) on the nucleic acid by adopting a specific primer pair CG-2439F / CG-2625R to obtain a Cq value or a nucleic acid amount; and S4, comparing the results of the PMA treatment group and the control group to determine the infectious CGMMV content or the live virus proportion. The method can reduce inactive virus interference, is suitable for seed quarantine, virus risk assessment and disinfection effect evaluation, and can provide a matched detection kit.

This utility model provides a protective structure for a thermistor fuse, relating to the field of fuse technology. It includes a protective box with connecting pieces installed at both ends. A fixing and protective assembly is provided inside the protective box. A placement rack is installed at the bottom inner end of the protective box. Connecting rings are installed at the left and right ends of the inner side of the protective box. A thermistor fuse wire is placed at the top of the placement rack. A protective top cover is installed at the top of the protective box. By setting the protective top cover, locking bolts, and sealing washers, the protective top cover is fixed using the locking bolts. The sealing washers improve the sealing performance of the protective box, further preventing dust or moisture from entering and ensuring the service life of the thermistor fuse. Furthermore, the use of inner and outer heat-conducting fins improves heat exchange between the inside and outside of the protective box, ensuring both the response speed and normal operation of the thermistor fuse.