39results about How to "No distraction" patented technology

The invention discloses a method for identifying Xinhui pericarpium citri reticulatae and pericarpium citri reticulatae, which is characterized in that four active ingredients including hesperidin, nobiletin, tangeretin and 2-methylamino methyl benzoate are simultaneously detected through high performance liquid chromatography, and distinguishing is realized according to detection data. The method comprises the following specific steps: preparing a mixed reference solution and a test solution, extracting a test with methanol, performing ultrasonic treatment, and filtering, specific chromatographic conditions are adopted for detection, the detection wavelength of the hesperidin is 283nm, and the detection wavelengths of the other three components are 330nm. Test results show that the contents of the four active ingredients in the Xinhui pericarpium citri reticulatae are high, the content of methyl 2-methylaminobenzoate is not lower than 0.020%, the ratio of the total amount of nobiletin and tangeretin to hesperidin is not lower than 0.17, and related indexes of the pericarpium citri reticulatae are remarkably low. The method is efficient, accurate, stable and reliable, and provides technical support for standardizing market circulation, guaranteeing product quality and promoting standardized development of the Xinhui pericarpium citri reticulatae industry.

The application belongs to the technical field of microfluidics, and particularly relates to a detection substrate and a preparation method thereof and a microfluidic chip. The detection substrate is used for a microfluidic chip. The microfluidic chip comprises a driving substrate arranged opposite to the detection substrate. The detection substrate is located below the driving substrate. The detection substrate comprises a substrate, a pressure transmission structure and a detection unit. The pressure transmission structure is arranged on the substrate. The detection unit is arranged between the substrate and the pressure transmission structure and is used for generating an electrical parameter change in response to external pressure. When a liquid drop is located between the driving substrate and the detection substrate, the gravity of the liquid drop is transmitted to the detection unit through the pressure transmission structure, so that the electrical parameter change of the detection unit is caused to determine the position of the liquid drop. The application can realize accurate detection of the position of the liquid drop by causing the electrical parameter change through the gravity of the liquid drop.

The invention relates to a rapid detection method for cadmium residual quantity in aquatic products based on magnetic qualitative separation and polarized light distinguishing and quantifying. The method comprises the following steps: coupling a biotinylated cadmium monoclonal antibody through streptavidin magnetic microspheres, and specifically enriching trace cadmium in the aquatic product digestive juice to form a magnetic compound; a muller matrix microscope is used for collecting a polarization microscopic image of a compound, and a deep learning model (such as RESNET34) is combined to carry out binary classification and particle counting on the image, so that rapid and high-sensitivity quantitative detection of cadmium can be realized. The method is easy and convenient to operate, the target object magnetic separation time is within 2 min, the particle distinguishing accuracy rate is higher than 84%, the quantitative correlation Rreaches 0.9 or above, and the method is suitable for rapid monitoring of trace cadmium (several micrograms / L) in aquatic products.

This invention discloses a method and system for embryo quality detection, relating to the field of embryo detection technology, including the following steps: S1: fertilized embryos are continuously cultured in an in vitro culture system containing specific metabolic marker detection components, and continuous dynamic imaging of the embryos is performed to obtain a complete dynamic developmental image sequence; S2: the dynamic developmental image sequence is segmented, and temporal developmental features are captured, identifying key time points such as pronucleus appearance and disappearance, cleavage, and blastocyst formation, and generating a segmentation mask corresponding to each frame of the dynamic developmental image sequence; this invention achieves full-process time-difference imaging to capture the temporal features of embryonic development, without trauma or interference, avoiding subjective bias in static observation; by segmenting the dynamic developmental image sequence and capturing temporal developmental features, the segmentation accuracy is high and the anti-interference ability is strong.

This invention discloses a continuous-pulse column vector fiber laser cleaning system, comprising a laser generation module, a beam transmission and scanning module, and a motion control module. The laser generation module employs a continuous-pulse column vector laser, which integrates a control module capable of switching between continuous and pulsed output modes. It also integrates a polarization control system capable of freely switching between radial and angular polarization modes according to cleaning process requirements, and selecting to emit either a radially or angularly polarized beam. Within the reliable architecture of a time-sharing hybrid cleaning system, this laser cleaning system utilizes the unique spatial polarization and energy distribution characteristics of a column vector beam to replace the traditional fundamental mode Gaussian beam, achieving a significantly improved advanced laser cleaning system in terms of cleaning quality, process versatility, and overall efficiency.

This invention discloses a macroscopic negative-energy vacuum space manufacturing device and method, belonging to the field of vacuum and physics experimental equipment. The invention employs a double-layered, high-strength cavity that is initially completely fitted together to squeeze out all gas molecules. This is then simultaneously stretched and expanded by external, uniformly force-bearing claws, forming a negative-energy vacuum environment with spatial tension and no gas residue. The device includes an inner fitted cavity, force-bearing claws, a support frame, and a synchronous stretching mechanism. This invention can realize large-scale, ultra-high-purity vacuum spaces without the need for evacuation, exhibiting high stability. It can provide an ideal experimental environment for cutting-edge fundamental physics research, with a simple structure, strong scalability, and significant scientific and social value.

The utility model discloses a slender vehicle-mounted bass sound box. The sound box comprises a box body, a bass sounding unit and an echo tube, the box body comprises a top plate, side plates and a bottom plate, and a sound cavity enclosed by the top plate, the side plates and the bottom plate is formed in the box body; the top plate is provided with a first mounting hole communicated with the sound cavity, and the top plate or the side plate is provided with a second mounting hole communicated with the sound cavity; the bass sounding unit is mounted in the first mounting hole, the bass sounding unit is provided with a vibrating diaphragm, and the vibrating diaphragm limits a part of the boundary of the sound cavity; the echo tube extends into the sound cavity from the second mounting hole; the minimum distance E between the second mounting hole and the center of the diaphragm satisfies the following formula: Rd < = E < = 3.5 Rd, wherein Rd represents the radius of the diaphragm. According to the slender vehicle-mounted bass sound box, the bass strength, the diving depth and the bass purity and texture of the vehicle-mounted bass sound box are effectively improved on the premise that the volume of the sound box is kept moderate and the cost is controllable.

The application relates to a wireless control low-power power supply starting circuit, which comprises a signal receiving module, a voltage generating module, a decoding module and a load driving module, the signal receiving module is responsible for outputting low levels with different time lengths according to the length of received network information; the voltage generating module is connected with the signal receiving module and outputs corresponding voltages according to the time length of the low level output by the signal receiving module; the decoding module is responsible for generating signals to start the power supply to supply power to the load according to the voltage of the voltage generating module; and the load driving module is responsible for receiving the signals of the decoding module to start or disconnect the load power supply. Since different output pins of the decoder are adopted to control the starting and shutdown of different load power supplies, the starting of each load power supply does not interfere with the power supply to the load. In addition, since the MCU which needs to be programmed with a large program is not involved, the energy loss caused by the MCU running the program can be reduced, and the system power consumption is further reduced.

This invention relates to the fields of QR code anti-counterfeiting, invisible ink printing, and anti-counterfeiting technology for commodity packaging. Specifically, it relates to a dual-layer photosensitive ink QR code anti-counterfeiting structure and anti-counterfeiting verification method. The anti-counterfeiting structure consists of three layers stacked from top to bottom: a top anti-counterfeiting QR code layer, a middle photosensitive shielding layer, and a bottom basic QR code layer. The bottom layer is directly printed on the surface of the commodity packaging substrate. The middle layer is printed with a first photosensitive ink, and the top layer is printed with a second photosensitive ink. The first and second photosensitive inks are ultraviolet photosensitive invisible inks that respond to the same specific frequency. After color development, they form a high contrast and appear transparent and invisible under natural light or ordinary visible light. The bottom layer is completely exposed for identification. Under ultraviolet light of a specific frequency, the middle layer completely shields the bottom layer, and only the top layer is fully exposed. A unique association and binding relationship is pre-established between the bottom and top layers for cross-verification using dual codes. This achieves the dual effects of convenient basic verification and high-level anti-counterfeiting verification, eliminating the vulnerabilities of traditional anti-counterfeiting methods.

The utility model discloses a multifunctional food processor, and belongs to the field of household shredder. The multifunctional food material arranging device comprises a container body, a cover body, a planing assembly and a pressing and cutting assembly, the cover body is arranged on the container body, a function replacing opening is formed in the cover body, the planing assembly comprises a planing cutter set, the pressing and cutting assembly comprises a pressing and cutting cutter set and a pressing piece, and one of the planing cutter set and the pressing and cutting cutter set can be selectively installed in the function replacing opening; the cover body is further provided with a multi-purpose side hole, the planing cutter set is provided with a spring bolt capable of being connected with the multi-purpose side hole in a buckled mode, and the pressing piece is provided with a guide plate capable of being matched with an inserting piece of the multi-purpose side hole in a guiding mode. The planing assembly and the pressing and cutting assembly can be perfectly matched through the same cover body, the planing assembly and the pressing and cutting assembly are easy and convenient to disassemble, assemble and replace, different cutting modes are not interfered, and pressing and cutting operation is easy and labor-saving; in addition, the number of needed accessories is small, and manufacturing cost is low.

The utility model provides a bubble eliminating device in an electrolytic copper electrolysis process, belongs to the technical field of electrolytic copper, and aims to solve the problem that in an existing electrolytic bath, although bubbles can be brought to a liquid level by mechanical stirring and electrolyte circulation, the surface quality of cathode copper is still possibly influenced due to the fact that an electrode top area is close to a bubble layer. Comprising an electrolytic bath, a front water blocking tank, a driving cylinder, a defoaming assembly and a filtering and separating assembly, the front water retaining tank is fixedly connected to the front of the electrolytic cell; the bottoms of the two driving cylinders are fixedly connected to the left side and the right side of the electrolytic cell correspondingly. The defoaming assembly is arranged inside and in front of the electrolytic bath; and the filtering and separating assembly is arranged in front of the electrolytic bath. The flow direction of the electrolyte is controlled through the water retaining block, the electrolyte containing bubbles is introduced into the water storage tank, the bubbles are broken through the defoaming pump and circularly reinjected into the electrolytic bath, meanwhile, copper slag is intercepted by the filter plate, and the quality of the electrode is guaranteed.

This invention relates to the field of material fatigue testing technology, and more particularly to a high-temperature rotary bending fatigue testing device capable of simulating different salt spray environments. Addressing the problem of existing equipment providing only a single environmental simulation, the high-temperature rotary bending fatigue testing device proposed in this invention includes an environmental cabinet with a shock-absorbing wooden block at the top; it also includes an environmental simulation mechanism, a salt spray supply and control mechanism, and a rotary bending loading mechanism. The environmental simulation mechanism is located on top of the shock-absorbing wooden block; the salt spray supply and control mechanism is located inside the environmental cabinet and communicates with the interior of the environmental simulation mechanism, used to control the concentration and flow rate of the salt spray supplied to the environmental simulation mechanism; the rotary bending loading mechanism is located on top of the shock-absorbing wooden block and coaxially connected to the environmental simulation mechanism, used for rotary bending of the test specimen. The high-temperature rotary bending fatigue testing device of this invention can closely simulate real service environments.

This invention provides a ball mill coarse grinding system and method for circulating coarse particles in slurry. The system includes a single continuous ball mill, a primary screening mechanism, a secondary screening mechanism, a spiral separator, and a residual ball mill. The single continuous ball mill is used to coarsely grind the fed premixed mud and sand. The primary screening mechanism is used to separate large-diameter impurities from the coarsely ground slurry to obtain coarsely ground slurry containing medium-diameter impurities. The secondary screening mechanism is used to separate medium-diameter impurities from the coarsely ground slurry to obtain qualified slurry, which is then fed into an intermittent ball mill for fine grinding. The spiral separator is used to perform gravity separation of medium-diameter impurities to obtain a heavy product of medium-diameter stone particles and a light product wastewater containing light impurities. The residual ball mill is used to independently grind the heavy product of medium-diameter stone particles into slurry, and then return the ground slurry to the single continuous ball mill for further grinding, thereby improving grinding efficiency and reducing power consumption.

This invention discloses an antibiotic patch and its application. The antibiotic patch includes a transdermal microneedle module, an antibiotic reservoir layer, and an osmotic pressure driving module, with the reservoir layer and the driving module separated by an elastic membrane. The osmotic pressure driving module includes a water chamber, a propulsion layer, and an osmotic pressure active sheet. It generates a constant thrust through unidirectional permeation of the semi-permeable membrane, propelling the antibiotic through the hollow microneedles for transdermal infusion and achieving zero-level release. The independent antibiotic reservoir layer can hold large doses of antibiotics, and it is also equipped with a filling port and a venting port to ensure flexible and stable medication administration. The antibiotic patch is suitable for various scenarios, including home and outdoor use, and can reduce the risk of antibiotic resistance and side effects, providing a convenient and efficient new solution for the treatment of bacterial infections.

This invention discloses an indoor target localization and trajectory tracking method and system based on millimeter-wave radar. The method includes: acquiring the frequency-modulated continuous wave emitted by the millimeter-wave radar towards the target area and receiving the echo signal; demodulating and transcoding the echo signal; performing preliminary noise reduction on the demodulated and transcoded data; segmenting and extracting the data after preliminary noise reduction to obtain a dataset; filtering environmental noise from the dataset to obtain a first-optimized dataset; clustering the first-optimized dataset to filter out noise generated by the target during movement, obtaining a second-optimized dataset; and using a constant false alarm rate (CFAR) detection algorithm on the second-optimized dataset, using peak points in the clustering results to replace the entire clustering interval to complete target localization.

The application provides a fluorescent probe compound for simultaneously detecting HClO and SO2 at double sites and synthesis and application thereof. The probe compound takes phenothiazine as a response group of HClO, expands the conjugated structure of phenothiazine, and introduces a response group of SO2 and an organelle positioning group on the near-infrared fluorescent skeleton, thereby constructing an endoplasmic reticulum-targeted fluorescent probe BQTPA for simultaneously detecting HClO and SO2. The probe can realize dual-channel simultaneous detection of HClO and SO2 through two completely separated emission channels (λem=598 nm and 448 nm), and exhibits excellent selectivity, high sensitivity (detection limits are 7.9 nM and 33.8 nM, respectively) and good light stability to the response of HClO and SO2. The probe is successfully used for monitoring the changes of exogenous and endogenous HClO and SO2 levels in cells, further reveals the dynamic changes of the two in the process of drug-induced liver injury and ferroptosis, and clarifies the role of ferroptosis in liver injury.

The utility model relates to a novel card Hong drum, the box body is composed of panel, backboard and board body, is equipped with control device and response string module in the inside, is equipped with inductive element on the panel, is equipped with audio output device at the bottom of box body, inductive element and audio output device are connected with control device electricity respectively, be equipped with a plurality of plug connector interfaces on control device for with external equipment electricity connects, control device includes signal conversion module and signal processing module. Backboard is equipped with sound hole and first mounting hole, and control device is located in first mounting hole. Have following beneficial effect: inductive element is used for detecting the position and strength information of the beat point, and the information is converted into electric signal transmission to signal processing module, and then is outputted to the outside through audio output device, avoid the traditional wooden box body because of the vibration and appear the phenomenon of resonance reverberation, realize signal stable output and no interference. A plurality of plug connector interfaces on the control panel, further improve the functionality of card Hong drum.

The application discloses a jet far-field noise control method and device and a computer readable storage medium. The control method comprises the following steps: obtaining all sample points covering the whole design space by using a test design method; performing far-field sound pressure level calculation according to a physical simplified companion Green function to obtain jet far-field noise target functions of all sample points; establishing a correlation model of the jet far-field noise and the inner and outer curve wall surface shape according to the jet far-field noise target functions of all sample points; and searching for an optimal value of the jet far-field noise on the established correlation model with the jet pipe aerodynamic performance as a constraint to control the jet far-field noise. The application can control the jet far-field noise size by modifying the inner and outer curve wall surface without affecting the jet pipe aerodynamic performance, and automatically designs an optimal inner and outer curve configuration without interference, so that the jet far-field noise is minimized, thereby significantly reducing the jet far-field noise evaluation and noise reduction measure design time.

The utility model discloses an electric water heater, including heating rod and gall bladder, gall bladder includes phase change gall bladder and water gall bladder, and heating rod sets up in water gall bladder, and phase change gall bladder has phase change material, and phase change gall bladder still includes the first heat exchanger who communicates with water gall bladder, and the electric water heater still includes the circulation pipeline who communicates water gall bladder and the first heat exchanger, and the circulation pipeline includes first circulation pipeline and second circulation pipeline, and first circulation pipeline has first water inlet and first water outlet, and first water inlet is located in water gall bladder, and first water outlet is located in phase change gall bladder, and second circulation pipeline has second water inlet and second water outlet, and second water inlet is located in phase change gall bladder, and second water outlet is located in water gall bladder, and the water in water gall bladder can circulate and flow between phase change gall bladder and water gall bladder through first circulation pipeline and second circulation pipeline. The electric water heater provided in the application embodiment can effectively improve the heat exchange efficiency of the heat storage stage, shorten the heat storage duration while simplifying the system, effectively reducing the overall cost and reducing the energy consumption.

This application discloses a control method, apparatus, and self-moving device for a mobile device. The control method includes: during the process of the mobile device carrying an object, if a placement command for the object is received, acquiring spatial information and map information surrounding the mobile device; if, based on the spatial information and map information, a candidate area is determined to exist that meets the object placement conditions, then controlling a robotic arm to place the object in the object placement area. The candidate area is the area corresponding to the object's placement range when the mobile device is in its current position. This method can accurately and safely locate the object in advance, avoiding damage or collisions to the robotic arm or affecting subsequent operations when placing the object.

This utility model discloses a vibration-resistant electronic component fastening structure, including a base and an electronic component mounting structure. A vertical lifting rod is provided on each of the two sides of the base, and the electronic component mounting structure is installed between the two lifting rods. Two shock absorbers are vertically fixed in the middle of the base, and the tops of the shock absorbers are fixedly connected to the electronic component mounting structure. The shock absorbers and lifting rods between the base and the electronic component mounting structure reduce the adverse effects of vibration on the electronic component mounting structure. Multiple heat dissipation fins are evenly spaced on the top of the mounting box, which cool the electronic component. Multiple heat dissipation vents are opened at the bottom of the mounting box, which also cool the electronic component. The heat dissipation vents are located in the gaps between adjacent heat dissipation fins, thus preventing interference between the vents and the fins.

The invention discloses a cartilage graft and a construction method thereof. The cartilage graft is a cartilage membrane or an injectable cartilage graft; the cartilage graft contains cartilage membranes or cartilage micro-tissues formed by in-vitro culture of cartilage cells.

This application discloses a method for detecting related substances in rivaroxaban tablets and its application, belonging to the field of pharmaceutical analysis technology. The method employs high-performance liquid chromatography (HPLC) with a column packed with octadecylsilane-bonded silica gel. The column is 150 mm long, 34.0 mm in inner diameter, and has a particle size of 23 μm. Mobile phase A is a 0.095%-0.105% phosphoric acid aqueous solution, and mobile phase B is acetonitrile. Gradient elution is used. The flow rate is 0.95-1.05 ml / min. The column temperature is 3337℃. The detection wavelength is 230-250 nm. The injection volume is 1020 μl. This method is highly specific, sensitive, and accurate, and can simultaneously detect known and unknown impurities, including LFSB1 to LFSB13, in rivaroxaban tablets, making it suitable for the quality control of this formulation.

The present application relates to a kind of ground net system multipoint grounding detection device and method.Ground net system multipoint grounding detection device includes variable frequency power supply, multiple current transformers connected with variable frequency power supply on input side, multiple current sensors respectively arranged on each ground wire and direct grounding end, multiple channel data acquisition card connected with each current sensor, and host computer connected with multiple channel data acquisition card and carrying out data analysis.Ground net system multipoint grounding detection method is: by current transformer, frequency a current signal is applied to corresponding ground wire;Current signal is detected, and preliminary data analysis is carried out;By current transformer, frequency b current signal is applied;Current signal is detected, and secondary data analysis is carried out to obtain secondary analysis result, confirm whether there is grounding between two ground wires.The present application has the advantages of strong anti-interference ability, high timeliness, no interference and damage to other equipment.

This invention discloses a fully automated tin plating equipment for automotive components, belonging to the field of tin plating processing technology. It solves the problem of low coordination efficiency between the processing mechanisms in existing fully automated tin plating equipment for automotive components. The invention includes a frame, on which a material tray loading assembly is mounted. Next to the material tray loading assembly are a material suction and conveying assembly and a product positioning mechanism. Next to the product positioning mechanism is a tin plating assembly. A tin furnace module is mounted on the frame below the tin plating assembly. An unloading assembly is mounted between the tin plating assemblies next to the tin furnace module. A fixture tray positioning mechanism is mounted on the frame below the unloading assembly, and a material tray conveying mechanism is mounted on the unloading assembly. This invention is used for fully automated tin plating processing of automotive components, featuring a high degree of automation, smooth process, no interference or obstruction between mechanisms, and high production efficiency.

The application discloses a fluorescent probe for trace chloride ion detection and a preparation method and application thereof, and belongs to the field of semiconductor material analysis and detection. + The fluorescent probe is B2 fluorescent probe (thiophene bridged double benzimidazole structure), which can form a 1:1 complex with Ag + The B2-Ag ‑ Complex further exhibits a fluorescence recovery response to Cl ‑ The concentration of Cl is in a good linear relationship within the range of 0-80 muM, and the detection limit is 0.0411 ppm. The B2 probe is applied to photoresist, and matrix interference can be effectively reduced through 20 times dilution, so that rapid and direct quantitative detection of chloride ions in original liquid photoresist samples before spin coating is successfully realized. Without complex pretreatment such as extraction, burning and column passing, the B2 probe has high sensitivity, strong selectivity and simple operation, and is suitable for online quality control of trace chloride ions in photoresist, electronic chemicals and high-purity solvents.

The invention discloses a ginsenoside-containing flash release agent as well as a preparation method and application thereof. The flash release agent is prepared from red ginseng, dwarf lilyturf tuber, Chinese magnoliavine fruit and specific auxiliary materials, and does not contain any sweetening agent or flavoring agent. The preparation method comprises the steps of superfine grinding, clathration and taste masking and direct tabletting. According to the invention, by optimizing the ratio of auxiliary materials and a tabletting process, the preparation is rapidly disintegrated within 3 seconds under the tongue, active ingredients are directly absorbed by sublingual mucous membrane, the first-pass effect is effectively avoided, and the preparation rapidly takes effect within 3 minutes; meanwhile, a sugar-free formula and a cyclodextrin inclusion technology are adopted, so that the beverage tastes good and is suitable for diabetics. The preparation method is simple and convenient in process and excellent in stability, and can be used for preparing medicines or health-care products for improving learning and memory, relieving fatigue or assisting sedation.

The utility model discloses a flexible wall washing lamp, which comprises a plurality of PCB (printed circuit board) lamp panels connected through metal leads, and each PCB lamp panel is provided with an LED (light-emitting diode) luminous source; each optical lens is arranged above each LED light emitting source and is fixed with the corresponding PCB lamp panel; the shading insulating coating layer wraps the plurality of PCB lamp panels and the plurality of optical lenses, and a waterproof perspective window is arranged at the position right opposite to each optical lens; and a plurality of light-transmitting anti-dazzle grid sheets, wherein each light-transmitting anti-dazzle grid sheet is embedded and fixed in one perspective window. The anti-dazzle LED lamp is simple in structure, easy to install, capable of being bent in multiple directions and capable of achieving the anti-dazzle effect.

The present application belongs to the technical field of traditional Chinese medicine detection, and particularly relates to a thin-layer identification method of Xuanyu Tongjing pharmaceutical preparation. The present application provides a thin-layer identification method of Xuanyu Tongjing pharmaceutical preparation, comprising the following steps: preparing a test sample solution A, and based on the test sample solution A, using thin-layer chromatography to simultaneously identify gardenia, licorice, white peony root and cortex moutan in the Xuanyu Tongjing pharmaceutical preparation; according to the thin-layer chromatography: taking the test sample solution A, a control medicinal solution and a control sample solution, respectively spotting on the same silica gel thin-layer plate, and using a volume ratio of ethyl acetate, formic acid, glacial acetic acid and water as 15:(1-3):(1-3):2 as a developing agent for development. The thin-layer identification method can simultaneously detect the licorice, gardenia, white peony root and cortex moutan components in the Xuanyu Tongjing pharmaceutical preparation, and has short detection time and high efficiency.