87results about How to "Responsive" patented technology

This invention relates to a top thread control device and sewing control method for optimizing corner sewing on a double-needle sewing machine. It includes a center thread hook, a take-up lever, two top thread clamps, and a take-up spring mechanism. The center thread hook has two center holes, and the take-up lever has two take-up holes. The take-up spring mechanism includes two guide components and two take-up springs. The guide components include guide grooves and guide hooks, and the take-up springs include hook rods that can rotate up and down around a rotation axis. One guide component, take-up spring, top thread clamp, center hole of the thread hook, and take-up hole constitute one top thread control unit, while the other constitutes another top thread control unit. Each top thread control unit controls the top thread of one needle. The top thread passes sequentially through the top thread clamp, guide groove, guide hook, bottom side of the hook rod, take-up hole, and center hole of the thread clamp before passing through the needle. When the take-up lever moves upward, the top thread causes the hook rod to rotate upward.

This invention belongs to the field of carbon nanomaterials technology, specifically disclosing a method for preparing and applying carbon dots from *Pu Di Lan* (a type of medicinal herb) residue. The specific steps are as follows: dried *Pu Di Lan* residue is pulverized using a cell wall breaker to obtain *Pu Di Lan* residue powder; the powder is then reacted using a hydrothermal method; the reaction solution is collected; the reaction solution is centrifuged, and the supernatant is collected; the supernatant is filtered, and the filtrate is collected; the filtrate is dialyzed, and the retaining liquid is collected; the retaining liquid is freeze-dried to obtain the *Pu Di Lan* residue carbon dots. The obtained *Pu Di Lan* residue carbon dots exhibit blue fluorescence under a 365 nm ultraviolet lamp, and their surface is rich in functional groups such as hydroxyl and carboxyl groups, showing good hydrophilicity. The *Pu Di Lan* residue carbon dots promote β-D-glucosidase activity and can be used in food processing; simultaneously, the fluorescence of the *Pu Di Lan* residue carbon dots is highly sensitive to β-D-glucosidase, and β-D-glucosidase activity can be detected by fitting a linear regression equation with a standard solution.

The application belongs to the technical field of detection and analysis, and discloses a normal phase detection method for imine reaction control. The method is detected by normal phase liquid chromatography, and the detection conditions include: a polysaccharide derivative normal phase coated type chiral chromatographic column is used, and a mixed solution of n-hexane, ethanol, ethylenediamine and trifluoroacetic acid is used as the mobile phase, wherein the volume ratio of n-hexane, ethanol, ethylenediamine and trifluoroacetic acid is (75-85):(15-25):(0.05-0.15):(0.05-0.15). The method can realize effective separation, detect the content of 1,2,3,4,10,14B-hexahydrodibenzo[C,F]pyrazino[1,2-A]azepine in the reaction solution, and has the advantages of simplicity, accuracy, rapidness and reliability.

The invention discloses an anti-rollover emergency braking device for a motorcycle and a control method of the anti-rollover emergency braking device. The anti-rollover emergency braking device comprises a gyroscope module, a vehicle speed obtaining module, a controller, a gear motor, an electromagnetic band-type brake device, a motor driving module and an air bag module. The gyroscope module provides three-axis acceleration and angular velocity data; the controller obtains the real-time inclination angle of the motorcycle through attitude calculation according to the three-axis acceleration and rotation angular velocity data, the real-time inclination angle is compared with a preset threshold value in real time, when the inclination angle reaches or exceeds the preset threshold value, braking is triggered, and the controller generates control signals and outputs the control signals to the motor driving module, the electromagnetic band-type brake device and the air bag module; the motor driving module drives the gear motor to operate according to the control signal and cooperates with the electromagnetic band-type brake device to realize emergency braking; and the airbag modules are synchronously started and unfolded. The tilting state of the motorcycle can be detected in real time, when the rollover risk is recognized, the motorcycle is quickly stopped, a safety protection mechanism is released, and therefore impact damage to the human body is reduced.

The invention discloses a high-speed communication method based on an embedded instrument. The high-speed communication method comprises the following steps that S1, the instrument receives protocol data; s2, analyzing the protocol data, and extracting effective instructions in the protocol data; s3, setting an instruction buffer pool, and storing the effective instruction into the instruction buffer pool; s4, sending a protocol data receiving response to the test system; and S5, the instrument analyzes and responds to the effective instruction in the instruction buffer pool when the resource is idle, and then waits for receiving the instruction next time. According to the method, the cache thread is additionally arranged, so that temporary storage of the ASCII instruction after the instrument equipment completes VXI-11 unpacking is realized, and resource scheduling is facilitated to complete analysis and response of the ASCII instruction when the instrument is idle. Through the method, the instrument responds to the message when the resource is idle, and message blocking or instruction response failure caused by a high-priority task is avoided. The problems of instruction failure and error response during rapid receiving of instrument equipment during high-speed VXI-11 communication are effectively solved.

The invention discloses a plant polyphenol extraction detection method based on synchronization of liquid chromatography and tandem mass spectrometry, and relates to the technical field of analytical chemistry detection, and the method comprises the following steps: predicting a chromatographic elution window through an ultraviolet spectrum, calculating a dynamic synchronization index by fusing mass spectrum background noise data, and starting a synchronous extraction detection program according to the dynamic synchronization index. In the extraction process, the mass spectrum scanning frequency and the ion trap filling time are fed back and adjusted according to pressure and temperature data monitored in real time; and when a target chromatographic peak appears, triggering mass spectrum monitoring channel switching and recording fragment ion information. And finally, integrating the fragment ion abundance ratio and a chromatographic peak shape parameter to carry out result verification. According to the method, dynamic coordination of extraction, separation and detection links is realized, and the signal-to-noise ratio, the sensitivity and the method adaptability of polyphenol compound detection in a complex sample are improved.

The application discloses a mower, and belongs to the technical field of agricultural machinery, garden machinery or engineering machinery, which comprises a deflection base frame, a connecting rod mechanism and a spring; a first hinging point is arranged on a main support; a second hinging point is arranged on one side of the deflection base frame; a third hinging point is arranged on the other side of the deflection base frame; the deflection base frame is rotationally connected to the main support through the third hinging point; the spring is installed on the connecting rod mechanism and is used for driving the connecting rod mechanism to reset after the connecting rod mechanism is compressed due to external force acting on the mower head; the passive avoidance and automatic reset of the mower head are realized through cooperation of the deflection base frame, the connecting rod mechanism and the spring, and the structure is compact and responds rapidly. The pure mechanical structure does not need sensors and active control, has low cost, high reliability, and an avoidance stroke is not limited, so that the mower head and the driving mechanism can be effectively protected.

The present disclosure obtains an optical semiconductor device capable of preventing a decrease in a frequency band. A first pad (8) connected to a first electrode (6) of an optical modulator (2) and a second pad (9) connected to a second electrode (7) of the optical modulator (2) are disposed on a first terrace (11) via an insulating film (22). In the first terrace (11), a first conductive type layer (13, 14) is removed between the first pad (8) and the second pad (9).

The application provides a microseismic energy uncertainty analysis method and device coupled with deep-buried tunnel TBM parameters, which is used for realizing modeling of a nonlinear relationship between tunnel boring machine operation parameters and microseismic energy, identification of key parameters, and uncertainty quantification of energy prediction, and also has better applicability, so that reliable basis of high quality can be provided for tunnel boring risk monitoring and decision-making work, and deep-buried tunnel engineering can better respond to microseismic events, and the engineering can be safely and reliably carried out, and has good application prospect.

This utility model provides a hydraulic-pneumatic combined front fork, relating to the field of motorcycle front fork technology. It includes an external connector, and the damper comprises a piston cylinder and a piston rod. The piston cylinder is fixedly installed inside the front fork cylinder, which is movably inserted into a guide cylinder. One end of the piston rod is fixedly connected to a liner tube. The piston cylinder has a through hole, and the piston head is movably disposed inside the piston cylinder. A shock-absorbing spring is sleeved on the piston cylinder, and one end of the shock-absorbing spring is fixedly connected to an internal connector. The internal connector abuts against one end of the liner tube. The shock-absorbing stroke is achieved through relative sliding between the front fork cylinder and the guide cylinder. The through hole on the piston cylinder connects the interior of the piston cylinder with the interior of the liner tube, forming a dual-cylinder interconnected oil passage. This dual-cylinder interconnected design significantly optimizes the oil flow path, reduces internal hydraulic resistance, and makes the damping force more linear and the response more sensitive, achieving high-precision control.

This utility model provides an acceleration sensor device for monitoring temporary construction access roads, belonging to the technical field of monitoring temporary construction access roads. The acceleration sensor device includes: a monitoring base, a vibration sensing component, a signal transmission component, a protective shell, and a fixed support frame. The monitoring base is a cuboid structure with a mounting groove on its top, in which the vibration sensing component is installed. The vibration sensing component includes a sensor body, an elastic reset plate, and a counterweight. The sensor body is cylindrical and fixedly positioned at the center of the mounting groove. The counterweight is rotatably connected to the inside of the sensor body via bearings. The counterweight has an eccentrically distributed fan-shaped structure. This invention solves the technical problems of existing vibration monitoring devices for temporary construction access roads, such as complex structure, difficult installation, poor environmental adaptability, and low monitoring accuracy.

The application discloses a beamforming method of a holographic MIMO antenna array based on a steering vector, and under the condition that a user end position is unknown, multiple code words are constructed based on the steering vector through the combination of the pitch angle and the azimuth angle of the user end relative to the antenna array, a code word with the maximum gain of a receiving end is selected from the code words according to the feedback of the user end, and the code word is used as the optimal transmitting or receiving coefficient of the antenna array. The user end only needs to feed back the corresponding information in sequence, the requirement for the feedback time delay is slightly low, the error code of the feedback information has a certain fault tolerance, the time complexity is relatively low compared with the exhaustive search method, the performance is good, the outdoor channel changing rapidly can be well responded, the robustness to the channel fluctuation is higher, and the overall power gain is improved. Moreover, under the condition that the user end position is known, the transmitting or receiving coefficient of the antenna array can be directly determined.

The utility model relates to electrical equipment technical field, concretely is a kind of pop -out structure of hidden wall socket, including prefabricated frame and socket panel body, the inside of prefabricated frame is equipped with the telescopic frame for connecting installation socket panel body, the both sides of telescopic frame back are connected with the bottom inner wall of prefabricated frame by push rod type rebound mechanism, the both sides in the inside of prefabricated frame are equipped with the auxiliary rebound mechanism connected with telescopic frame end part, the auxiliary rebound mechanism is composed of directional column, support, auxiliary spring, the middle of telescopic frame is equipped with the angle position of cooperation socket panel body rotation angle position's angle adjustment linkage assembly. The pop -out structure of the hidden wall socket improves the stability and operation convenience of pop -out process, effectively avoids the deviation or jam when pressing, and realizes the angle fine adjustment after socket panel pops out, enhances the flexibility of use.

This invention discloses a rapid detection device for the planar runout of the end face of medium and large bearings, comprising a base and a turntable. The top wall of the turntable serves as a placement surface, and several slots are evenly distributed along the circumference of the turntable on the placement surface. Each slot is formed from the edge of the turntable towards its center. A clamp is movably mounted in any three slots, arranged in a triangular pattern. Each clamp has an arc-shaped contact surface at its starting end for contacting the outer peripheral wall of the bearing race under test. Each clamp is equipped with a fastening structure for securely connecting the clamp to the corresponding slot and an adjustment structure for adjusting the relative height between the clamp and the turntable to accommodate bearing races of different thicknesses. The base is equipped with a detection element for detecting the planar runout of the bearing race end face. This invention solves the problems of existing bearing planar runout detection equipment, such as complex structure, poor adaptability, easy damage to the bearing surface, inconvenient disassembly and assembly, and low detection efficiency.

The invention relates to the technical field of disease risk intelligent prediction, in particular to a chronic kidney disease progress risk prediction system based on machine learning, which comprises an accumulated impact acquisition module used for inputting disease information and physiological index data of a current patient into a disease risk transmission network to acquire an accumulated impact condition; the predicted eGFR calculation module is used for inputting the accumulated impact condition into an eGFR prediction regression network to obtain a predicted eGFR curve; the similarity analysis module is used for calculating a similarity measurement value between the eGFR curves of the current patient and each target historical patient; the risk value calculation module is used for obtaining a renal function attenuation risk value based on the predicted eGFR curve, the similarity measurement value and the eGFR difference value between the current patient and each target historical patient; and the risk judgment module is used for judging whether the current patient has a renal function collapse risk based on the renal function attenuation risk value. According to the invention, early and accurate prediction can be carried out on the CKD progress risk.

The application discloses a method for applying photo-thermal orthogonal regulation color-changing fluorescent polymer hydrogel to temperature monitoring and anti-counterfeiting, using phase change materials, thermochromic molecules and photochromic molecules as raw materials, a series of photo-thermal orthogonal regulation color-changing fluorescent polymer capsules are prepared by adopting an emulsion-solvent evaporation method, then the prepared capsules are dispersed in hydrogel to prepare photo-thermal orthogonal regulation color-changing fluorescent polymer hydrogel, and the prepared hydrogel is used for temperature monitoring and anti-counterfeiting under photo-thermal orthogonal regulation after arrangement and combination. The prepared color-changing fluorescent polymer hydrogel has fast photoresponsivity and thermal responsivity, excellent light switching performance and high fluorescent contrast, a relatively narrow temperature response interval, temperature response sensitivity, and a simple preparation process, and has great application potential in the fields of data encryption, anti-counterfeiting and temperature monitoring.

The application discloses a method for detecting polyether defoaming agent in water-soluble medicine, which comprises the following steps: heating a mixture of water-soluble medicine and water, wherein the heating temperature is 90-100 DEG C, to obtain a water-soluble medicine solution; extracting the water-soluble medicine solution with an extractant to obtain a solution rich in polyether defoaming agent as a test solution; and determining the residual amount of the polyether defoaming agent in the test solution by using a combination of molecular exclusion chromatography and an evaporative light scattering detector or a combination of molecular exclusion chromatography and an electric mist detector. The method has good sensitivity, accuracy and repeatability by using a special pretreatment method combined with the detection method of SEC chromatography-ELSD.

The application discloses a kind of on-chip living matter programmable arbitrary control device based on liquid crystal vector hologram and its control method, storage medium, the method is by the polarization response characteristic of calibration target living matter, according to the desired motion trajectory or distribution pattern, reverse design required light field parameter, and accordingly calculate and prepare corresponding liquid crystal vector holographic phase plate.The application realizes the high-precision, non-contact, programmable on-chip control of a variety of living matter sensitive to linear polarization, circular polarization and the like, has the advantages of highly integrated system, arbitrary flexible control path, wide application object, and solves the defects of large volume and limited control mode of traditional spatial light modulator scheme.

The application relates to a three-dimensional force sensor and belongs to the technical field of sensors. The three-dimensional force sensor comprises, in sequence, an electrode layer, a pressure-sensitive layer and a mechanical transmission layer. The mechanical transmission layer comprises mechanically-transmitting structures which are arranged at intervals. The mechanically-transmitting structures comprise integrally-formed lower parts and upper parts. The lower parts are curved bases, and the upper parts are flagelliform protrusions. The electrode layer is provided with a collecting unit corresponding to the mechanically-transmitting structures. The three-dimensional force sensor can increase the top contact sensitivity, realize high-precision three-dimensional force detection of shear forces such as torsion, and is easy to manufacture and low in cost.

The invention provides a light-heat dual response intelligent long afterglow coating which is prepared from the following components in parts by mass: 15 to 25 parts of coated strontium europium dysprosium aluminate, 10 to 20 parts of thermochromic microcapsules, 5 to 15 parts of tungsten-copper heterojunction filler, 30 to 40 parts of organic silicon modified acrylic resin, 3 to 8 parts of interface bridging agent and 2 to 5 parts of modified boron nitride. According to the invention, stable long afterglow performance is ensured, organic unification of photo-thermal response and long-acting luminescence is successfully realized, and the technical problems of mutual interference of components and poor environmental stability in a traditional multifunctional coating are effectively solved.

The novel multifunctional air compressor comprises a motor shell, a piston driving mechanism shell and an air cavity supporting shell which are fixedly connected, an air cavity shell and an air cavity bottom plate are arranged above the air cavity supporting shell, a cylinder body is vertically installed, and a piston plate is arranged in the cylinder body. A motor output shaft in the motor shell extends into the piston driving mechanism shell and is in linkage with the piston plate through the piston driving mechanism. The air cavity bottom plate is provided with a one-way valve clack on the upper side of the air inlet to prevent air in the air cavity from flowing back; a vent hole and a one-way valve device are arranged on the piston plate in a penetrating mode, and one-way flow of air on the upper side and the lower side of the piston plate is achieved. By arranging a dual one-way airflow control structure, compressed air is effectively prevented from flowing back, the compression efficiency and the airtight reliability are improved, meanwhile, the heat dissipation performance and the intelligent control function are good, the structure is compact, and operation is stable.

The utility model discloses a sensing module and Coriolis flowmeter wherein the sensing module comprises a support, a sensor and an installation assembly, the support is fixedly installed on a straight pipe section, and the sensor is installed on the support through the installation assembly in a sliding mode. According to the sensing module and the Coriolis flowmeter, the support fixedly installed on the straight pipe section is arranged, and the sensor is installed on the support in the sliding mode, so that the position of the sensor can be conveniently adjusted, the optimal measuring position can be conveniently found, and the measuring precision is remarkably improved. Particularly, during small flow measurement, the response of the sensor can be optimized through the slidable design, so that the accuracy is improved, errors are reduced, and the overall performance and reliability of a product are further improved. According to the design, higher flexibility and accuracy are provided for flow measurement, and wider application requirements are met.

The invention provides a pH response type flow pattern regulator suitable for CO2 polluted drilling fluid as well as a preparation method and application of the pH response type flow pattern regulator. The pH response type flow pattern regulator is prepared from the following raw materials in parts by mass: 5 to 10 parts of acrylic acid, 10 to 20 parts of a pH response monomer, 10 to 30 parts of 2-acrylamide-2-methylpropanesulfonic acid, 5 to 20 parts of N-vinyl pyrrolidone, 0.1 to 1 part of an initiator and 100 to 200 parts of water. The flow pattern regulator disclosed by the invention can sense the pH value change of a drilling fluid system caused by CO2 pollution through a pH sensitive group in a molecular structure, and adaptively adjust the interaction strength with clay particles, that is, when the acidity is enhanced, the adsorption capacity is enhanced through group protonation, the aggregated clay particles are effectively dispersed, and the viscosity and shear force of the drilling fluid are reduced; in the pH value rising stage, the stability of the system is maintained through charge density regulation and control, and meanwhile, the filter loss is reduced by improving the mud cake structure.

An atomization device relates to the technical field of atomization equipment. The atomization equipment comprises a shell, a gas sensing module, an atomization assembly, a power supply and a control module. The shell comprises a partial metal area; the gas sensing module outputs a first driving signal from an output end of the gas sensing module when detecting that the atomization device has a suction action; the atomization assembly heats an aerosol substrate after being powered on to generate an aerosol; the power supply is used for providing electric energy; the control module comprises a touch detection circuit and a logic circuit; the touch detection circuit generates a second driving signal when a user touches the metal area, and outputs the second driving signal from an output end; a first input end of the logic circuit is connected to the output end of the gas sensing module to obtain the first driving signal, a second input end is connected to the output end of the touch detection circuit to obtain the second driving signal, and an output end is connected to the atomization assembly; when the first input end and the second input end of the logic circuit both receive corresponding driving signals, the power supply is turned on with the atomization assembly.

The invention provides a low-pressure vertical diffusion furnace and a working method thereof, relates to the field of low-pressure vertical diffusion furnaces, and adopts the scheme that the low-pressure vertical diffusion furnace comprises a wafer boat and a stand column, and further comprises a lifting seat, the lifting seat is arranged on the stand column in a lifting manner, a lifting driving assembly is arranged on the stand column, and the lifting driving assembly is connected with the lifting seat; the rotating seat is rotationally arranged on the lifting seat, the lifting seat is connected with a rotating driving assembly, and the wafer boat is arranged on the rotating seat; and the furnace door is arranged on the lifting seat, and the furnace door is arranged at the upper part of the rotating seat. The wafer heating device can rotate during heating, it is guaranteed that wafers are evenly heated, and the quality is improved.

The present application relates to the technical field of lithium metal battery, and especially relates to a negative electrode interface protection layer and a preparation method, a lithium metal negative electrode and a lithium metal battery. The preparation method comprises the following steps: under stirring, adding bismuth ferrite into a PVDF-HFP solution in batches, ultrasonic dispersion and mixing, obtaining a precursor solution, dropping the precursor solution on a copper foil, adopting a two-stage spin coating process to form a wet film, drying, obtaining a copper foil loaded with a composite protection layer BFO / PVDF-HFP, and carrying out high-voltage corona polarization treatment on the copper foil loaded with the composite protection layer BFO / PVDF-HFP, thereby obtaining the negative electrode interface protection layer. The negative electrode interface protection layer is more sensitive to the stress response of the lithium metal negative electrode volume strain and lithium dendrite, and generates a stronger piezoelectric field more quickly. Under the action of the electric field, the lithium ion flux is larger and more uniform, the lithium deposition is more uniform and dense, the growth of lithium dendrites is effectively inhibited, and the lithium metal is protected while the lithium deposition / peeling behavior is more effectively regulated.

The application discloses a kind of multi-unmanned aerial vehicle navigation method, system, equipment and medium based on distributed model predictive control and virtual pipeline, and the method comprises the following steps: constructing virtual pipeline, forming the flyable area of unmanned aerial vehicle group;In each sampling period, each unmanned aerial vehicle generates the assumed trajectory in prediction time domain based on its current state using its dynamic model, and broadcasts to neighbor unmanned aerial vehicle;Obstacle intrusion judgment and virtual pipeline dynamic processing, construct linear separation hyperplane, generate local convex safety sub-pipeline constraint;Inter-machine collision risk judgment is carried out and inter-machine collision avoidance constraint is dynamically activated;Set target cost function, and construct optimization problem in combination with the above constraint;The optimal prediction control input sequence of current time is obtained by solving, and its first control instruction is executed;The above process is repeatedly executed until all unmanned aerial vehicles pass through virtual pipeline.The application can simultaneously solve multiple challenges such as dynamic environment adaptability, calculation real-time and trajectory smoothness.

This invention discloses a dual-piezoelectric tube driven inertial motor and its control method, along with a scanning probe microscope, relating to the field of piezoelectric tube technology. The invention includes a base, a first piezoelectric tube, a second piezoelectric tube, and a U-shaped sliding body. The first and second piezoelectric tubes are parallel to each other along their axes, with one end fixed to the base and the other end free. The two parallel arms of the U-shaped sliding body, referred to as the left and right sliding rods, are elastically connected via a junction at the bottom of the U-shaped sliding body. The left and right sliding rods are coaxially inserted into the inner walls of the first and second piezoelectric tubes, respectively. This invention not only ensures that the two sliding rods consistently and stably abut against the inner cavities of their respective piezoelectric tubes, guaranteeing effective transmission of driving force, but also improves the overall mechanism's motion accuracy, load-bearing capacity, and anti-interference capability through the coordinated and alternating operation of the dual-drive piezoelectric tubes, laying a structural foundation for achieving high-precision and high-stability stepping motion.

The application discloses a corn nitrogen reduction and biochar effect time sequence dynamic characteristic evaluation method, first, different combinations are set, chlorophyll fluorescence parameters, crown layer spectral reflectance and yield data of corn at key growth stages such as jointing stage and big bell mouth stage are collected; second, the spectral data is preprocessed, single time phase red edge characteristics are calculated, and time sequence dynamic characteristics are constructed, biochar sensitive wave bands are screened through reflectance difference percentage during growth, red edge index is designed, and fluorescence weight spectral index is constructed in combination with wide band vegetation index; then, the data is integrated to construct a multi-time phase spectral characteristic data set, a time sequence dynamic chlorophyll inversion model containing dynamic inversion, yield prediction and attribution branches is built, the former outputs chlorophyll and photosynthetic code vector at the grain filling stage, and the latter predicts yield and related parameter contribution; finally, the model is trained, the optimal matching is obtained based on the trained model, and support is provided for corn planting and fertilization decision-making.