276results about How to "Efficient method" patented technology

The invention discloses a semantic-guided extreme overexposure image restoration method. The method comprises the following steps: 1, obtaining a data set, and dividing the data set into a training set and a test set; 2, extracting brightness information of the overexposure image, and generating a brightness map; 3, constructing an overexposure image brightness correction network model; 4, training an overexposure image brightness correction network model; 5, correcting the overexposure image by using the trained model, and generating a corrected image and a mask of a brightness saturation region; 6, constructing a pre-trained brightness saturation completion network model, and performing information completion by using the corrected image, semantic graph and brightness cue word; and 7, fusing the complemented brightness saturation region with the unsaturated region to obtain a final output image. According to the method, semantic information is applied to an image restoration process, restoration is effectively guided and constrained, and a visual pleasure and semantic coherence result is generated.

The invention discloses a traction converter multi-fault intelligent diagnosis method based on edge AI, and the method comprises the following steps: building a permanent magnet motor mathematical model and a three-level active neutral point clamped converter mathematical model, and carrying out the simulation and experiment of a permanent magnet motor control system fed by a three-level ANPC converter, acquiring a three-phase current signal, a midpoint voltage signal and a rotating speed signal to form an original data set; performing multi-source and multi-dimensional information fusion and normalization on simulation and experimental data, and dividing a training set, a cross validation set and a test set; constructing a two-dimensional convolutional neural network model, and performing offline training; and carrying out lightweight design and edge deployment on the trained neural network model to realize real-time diagnosis of multiple fault modes of the converter under different working conditions. According to the method, the edge calculation efficiency is improved through the lightweight design of the network model, intelligent diagnosis of multiple faults can be realized, and the method has relatively high diagnosis precision and diagnosis speed.

The invention relates to the field of live-action three-dimensional modeling, in particular to a ground video stream and unmanned aerial vehicle multi-view image fusion modeling method, which comprises the following steps of: 1, acquiring an aerial image, arranging an image control point, and acquiring a spatial three-dimensional coordinate of the image control point; step 2, processing and modeling the aerial image; 3, extracting marked space points, and exporting space coordinate data; 4, acquiring video stream data, extracting a high-resolution image, and screening image data; 5, taking the spatial point coordinate information as a reference, carrying out aerial triangulation processing on the image model, and obtaining an aerial triangulation result under an absolute reference; step 6, according to the aerial triangulation result, combining the aerial triangulation result of the aerial image with the aerial triangulation result of the video streaming image; and 7, performing model reconstruction based on the combined aerial triangulation result, and mapping textures to obtain a final fused three-dimensional model result. The advantages of the aerial image of the unmanned aerial vehicle and the ground video stream are fused, and the multi-view image data of the target scene can be comprehensively acquired.

The invention discloses a power meter reading concentrator remote upgrading system and method based on a 4G communication module. The system comprises a power meter reading concentrator, a remote server, a management terminal and a security authentication module. The concentrator is internally provided with a 4G communication module and establishes secure communication with a remote server through a 4G network, so that remote upgrade of firmware or software is realized. The system adopts block transmission and breakpoint resume technologies, and it is ensured that the upgrade package can still be efficiently and completely transmitted under the condition that the network is unstable. In the upgrading process, SSL / TLS encryption is adopted for data transmission, and safety is guaranteed; meanwhile, the system has self-checking and rollback functions, and it is ensured that the system automatically recovers to a safe state when upgrading fails. According to the invention, the upgrading and maintenance efficiency of the electric power meter reading system is remarkably improved, the operation and maintenance cost is reduced, and the reliability and safety of the system are improved.

The invention provides a fucosyl transferase polypeptide, which can be applied to the synthesis of human milk oligosaccharides (HMOs), and belongs to the technical field of enzyme engineering. The fucosyltransferase polypeptide provided by the invention comprises polypeptides with at least 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 99% and 100% same amino acid sequences as polypeptides shown in amino acid sequences such as SEQ ID NO: 1-25. According to the transferase polypeptide disclosed by the invention, the specificity of a polypeptide catalytic substrate is also improved while the ability of the polypeptide as shown in SEQ ID NO: 1 to catalyze and synthesize 2 '-FL is improved.

The invention relates to the technical field of heat exchangers, in particular to a plate heat exchanger cleaning system, a plate heat exchanger and a cleaning method. The fluid monitoring devices are installed at an inlet and an outlet of the plate heat exchanger respectively, connected with the control device and used for monitoring fluid data of the inlet and the outlet of the plate heat exchanger and transmitting the data to the control device. The high-pressure cleaning device is arranged between plate channels of the plate heat exchanger, is connected with the control device and is used for acquiring an instruction of the control device and cleaning the plate channels of the plate heat exchanger; the control device is used for receiving the fluid data of the fluid monitoring device and generating a cleaning instruction to the high-pressure cleaning device. Real-time monitoring and a response mechanism are combined, the fluid monitoring device, the high-pressure cleaning device and the control device are combined for control, the self-cleaning function of the plate heat exchanger is achieved, and the problems that an existing plate heat exchanger is difficult to clean and low in efficiency are solved.

The invention provides fluorescent conversion type red fluorescent powder for display as well as a preparation method and application thereof, and belongs to the technical field of light-emitting display materials. Metal Sr, metal Al and metal Eu are mixed and smelted according to the stoichiometric ratio and then ground to prepare alloy powder, lithium aluminum hydride powder and the alloy powder are ground, mixed, calcined and ground again, and the red fluorescent powder for laser display with high brightness under blue light excitation is prepared. According to the invention, an alloying method is combined with a nitriding method, and the molar ratio (greater than 70%) of Eu < 2 + > (radiative transition) in all Eu elements in the prepared fluorescent powder product is greatly increased, so that the prepared red fluorescent powder has high color purity, high luminous efficiency and thermal stability, and meanwhile, a sample has an ultrahigh saturation threshold value under the excitation of blue laser; the material can be applied to a fluorescence conversion type laser display technology, and has huge potential for laser display devices.

The invention relates to a series of GDP-fucose synthase polypeptides which can be applied to synthesis of GDP-fucose which is a precursor of human milk oligosaccharides (HMOs), and belongs to the technical field of enzyme engineering. In certain embodiments, the polypeptide capable of catalyzing the conversion of GDP-4-keto-6-deoxymannose into GDP-fucose comprises a polypeptide of which the amino acid sequence is at least 65%, 70%, 75%, 80%, 85%, 90%, 95%, 99% and 100% identical to the amino acid sequence of SEQ ID NO: 1 and / or the amino acid sequence of the polypeptide M1-14. The invention provides a series of polypeptides for synthesizing GDP-fucose.

The invention discloses a p-type gallium oxide material and a preparation method and application thereof, and relates to the technical field of semiconductor materials. The method for preparing the p-type gallium oxide material comprises the following steps: placing a beta-Ga2O3 single crystal substrate in a cavity of a deposition system, introducing an organic gallium source and N2O, and carrying out homoepitaxial growth on the beta-Ga2O3 single crystal substrate through an organic metal chemical vapor deposition method to obtain the p-type nitrogen-doped beta-Ga2O3 material. In the process of homoepitaxial growth on a beta-Ga2O3 single crystal substrate, N atoms in N2O are doped into beta-Ga2O3 in a displacement doping form, so that the p-type nitrogen-doped beta-Ga2O3 material is formed. The preparation of the p-type beta-Ga2O3 material is realized in a homoepitaxy mode, and the p-type beta-Ga2O3 material can be used for preparing a transverse device and a longitudinal device, so that popularization and application of gallium oxide devices are facilitated.

The invention provides a direct current charging pile charging method, system and device based on face recognition and a medium, and belongs to the technical field of charging piles. According to the scheme, the camera module is installed in the charging pile, the face image is collected in real time, and the main control module carries out face recognition through the YOLOv4 model. In the charging starting stage, the recognized face features are recorded, the charging pile is locked, face information is continuously detected during charging, and unlocking is conducted if the face information is matched with the face information. After charging is finished, charging is stopped, and unlocking is conducted. In addition, a charging abnormity detection function is introduced in the scheme, and charging abnormity is monitored in real time and processing measures are taken by collecting BMS and CCS data of the electric vehicle. Meanwhile, a face detection algorithm is optimized, an improved CSPDarkNet-53 is adopted as a backbone network, features are extracted through a CSPLayer2Conv convolution block, a PANet is replaced with an MFPN, and CCAM is introduced to enhance feature attention, so that the accuracy and robustness of the algorithm are improved, and the safety and convenience of the charging process are improved.

The invention relates to the technical field of wireless communication, and particularly discloses a method and a system for testing wireless equipment performance by utilizing channel parameters generated by a 3D (three-dimensional) model, comprising the following steps: acquiring surveying and mapping data, and performing three-dimensional modeling based on the surveying and mapping data to obtain a three-dimensional model; mapping the actual wireless communication equipment and the interference equipment into virtual equipment; virtual equipment is arranged in the three-dimensional model; wireless channel parameters among the virtual wireless communication devices are calculated in the three-dimensional model, actual wireless communication devices and interference devices are connected to ports of a wireless channel simulation instrument, and links among the corresponding ports of the wireless channel simulation instrument are configured based on the wireless channel parameters; actual wireless communication equipment and interference equipment work, and communication performance related parameters in the working process of the actual wireless communication equipment are obtained; and evaluating the communication performance based on the communication performance related parameters to obtain an evaluation result. According to the method, the performance test of the wireless equipment under the conditions of complex buildings and terrains can be simply, conveniently and efficiently realized.

The invention belongs to the field of tobacco industry application, and particularly relates to an integrated response platform for cigarette essence blending and a cigarette essence blending method. According to the characteristics of different stages of perfume volatilization, three independent response medium layers are designed in a targeted manner, and according to different types of substances emitted by the perfume in each stage, the number of partitions of each response medium layer and the sensing material printed on the sensing interface base material of each area are designed in a targeted manner; the three independent response medium layers respond to three stages of perfume volatilization respectively, a multi-channel integrated response platform is constructed, perfume body composition is truly restored, manual work is simulated to complete staged perfume evaluation, and essence imitation is rapidly completed.

The invention provides a method for determining 91 pollutants in serum, and belongs to the technical field of analytical chemistry. According to the method, the serum sample is subjected to isotope labeling, standing for impurity removal, centrifugal constant volume and other treatments, and pollutants in the sample are efficiently extracted; then, the pollutants in the serum are detected by adopting an ultra-high performance liquid chromatography-mass spectrometry technology, so that rapid and accurate determination of 91 pollutants in the serum can be realized at the same time. The method disclosed by the invention is simple to operate and relatively good in separation effect, precision, accuracy and stability, and can be used for evaluating the exposure condition of pollutants in a large number of biological samples.

The invention discloses a social small group behavior motion simulation method based on an ORCA model, and the method comprises the steps: firstly constructing an intimacy function, and quantifying the intimacy among internal members through considering different social relationships and spatial distances thereof, thereby dynamically reflecting the intimacy change of the relationships among the members; meanwhile, the behavior of the group is restrained by combining an alignment and aggregation rule so as to simulate the aggregation behavior in the social small group. Secondly, the roles are modeled based on a five-personality model, and corresponding leader capabilities are divided for different individuals so as to simulate following behaviors in the group. And finally, integrating the small group internal gathering behavior and the leader following behavior into an ORCA algorithm to jointly drive the crowd to move. Based on the method, the Unity3D engine is adopted for simulation, and compared with an original model, the method can show the influence of mutual constraint and leader force in the group in the crowd motion simulation process.

The present invention provides a chemical synthesis method of EPS-G7, wherein β-cyclodextrin A is acetylated to obtain β-acetylcyclodextrin B, B is ring-opened in a mixed solution of acetic anhydride / concentrated sulfuric acid to obtain a chain acetylated heptose C, p-nitrophenol is condensed with intermediate C using boron trifluoride acetonitrile to obtain a key intermediate p-nitrophenyl (G1)-O-acetyl-D-maltoseptaglycoside D with α as the dominant configuration, D is removed from the acetyl group under the action of sodium methoxide to obtain pNP-G7 (p-nitrophenyl (G1)-D-maltoseptaglycoside), pNP-G7 is in the presence of p-toluenesulfonic acid and dimethoxyethane, and acetal protection is formed between the hydroxyl groups on C4 and C6 of the terminal monosaccharide to obtain EPS-G7. The reaction raw materials used in the method of the present invention are cheap and readily available, and the chemical synthesis of α-amylase detection reagent EPS-G7 is realized, which is a simple, economical and efficient synthesis method.

The embodiment of the present invention relates to the field of biometric identification technology, and discloses a method, cloud platform and system for rapid screening of drug addicts based on skin spectra. The method includes: using a skin spectrum information collector to collect spectrum sequence data of the non-dominant palm of the screened person; preprocessing the spectrum sequence data; based on the gender of the screened person, inputting the preprocessed spectrum sequence data into different drug abuse recognition models for identification to obtain drug abuse screening results; and feeding back the drug abuse screening results to a mobile terminal for display. The scheme for rapid screening of drug addicts based on skin spectra provided by the embodiment of the present invention has the characteristics of in-situ non-destructiveness compared to traditional sampling and detection methods (blood tests, urine tests, hair tests, etc.), and has the characteristics of rapidity and less restrictions compared to non-invasive screening methods (breath tests, iris / pupil tests). In terms of rapid on-site screening, the method of the present invention is more effective, simple, reliable, and has a higher accuracy rate.

The invention belongs to the technical field of medicine separation and preparation, and relates to a separation and preparation method and application of non-natural ginsenoside. The method comprises the following steps: extracting and concentrating a saccharomyces cerevisiae engineering bacterium fermentation product sample serving as a raw material to obtain a saponin crude extract I; enriching the saponin crude extract I by adopting macroporous adsorption resin to obtain a saponin crude extract II; and separating by adopting a high-speed counter-current chromatography to obtain a saponin extract III, namely the non-natural ginsenoside. The non-natural ginsenoside is a non-natural ginsenoside 3 [beta]-O-Glc-DM or a non-natural ginsenoside 20 [S]-O-Glc-DM, and the non-natural ginsenoside is a non-natural ginsenoside 3 [beta]-O- The method is simple, convenient and efficient, the prepared non-natural ginsenoside has the effects of reducing the activity of tyrosinase in cells and inhibiting melanogenesis, and a thought is provided for development and application of ginsenoside.

The present disclosure provides a user interface for managing media. The present disclosure as a whole relates to a user interface for managing exposure compensation when capturing media (e.g., images, videos), displaying representations of the media (images, videos), and displaying status indicators (e.g., indicating that media is being captured and / or has been captured).

The invention discloses a dynamic calibration method for the sensitivity of a linear angular vibration sensor based on multi-frequency sine excitation. The method comprises the following steps: constructing a line angle vibration sensor sensitivity dynamic calibration device based on multi-frequency sine excitation; providing multi-frequency sine line angle excitation; collecting a motion sequence image and an output signal; calculating the line angle excitation displacement of the calibrated line angle vibration sensor; and calculating to obtain the sensitivity of the calibrated line angle vibration sensor. The method is efficient and accurate, and the calibration process is simplified; the method based on monocular vision is used for measuring the vibration displacement of the linear angle vibration sensor at different frequencies, and only a simple monocular vision measuring system is needed; the multi-frequency sine line angle excitation output by the line and angle vibration generating device can be controlled, and the influence of other extra excitation on the sensor can be effectively avoided; the method is suitable for different types of sensors, and the multi-frequency sine excitation method has a wide application range and can be used for calibrating different types of linear angle vibration sensors, such as gyroscopes and accelerometers.

The invention discloses a large-scale forestry resource-oriented multi-modal expert collaborative fire risk monitoring method, which comprises the following steps of: constructing a multi-modal fire risk monitoring data set containing multi-modal samples; wherein each multi-modal sample comprises meteorological time sequence data, a vegetation image, human activity map data, a topographic image and a target label representing a fire risk category; constructing four expert models, including a meteorological expert model, a vegetation expert model, a human activity expert model and a terrain expert model; and constructing a multi-modal monitoring network for training to obtain a multi-modal monitoring model for predicting the fire risk category of the to-be-identified area. According to the method, more information can be extracted from multi-modal data, and the prediction capability of fire risks in a complex environment is improved; the weight of each expert model can be dynamically adjusted according to the characteristics of the input data, and the adaptive optimization of the model prediction effect is realized. The system is suitable for real-time monitoring and prediction of fire risks, and can improve the accuracy and timeliness of fire early warning.

The invention relates to the field of intelligent medical treatment, in particular to a method, system and equipment for diagnosing osimertinib drug-resistant lung cancer patients, predicting drug treatment effects and screening drugs based on UQCC2 computer assistance. According to the application, the remarkable high expression of UQCC2 in the osimertinib drug-resistant lung cancer is found for the first time, and the effect between UQCC2 and METTL3 is found, so that an efficient and rapid method is provided for diagnosis of osimertinib drug-resistant lung cancer patients, prediction of the drug treatment effect of the osimertinib drug-resistant lung cancer patients and screening of drugs based on targeting UQCC2 and METTL3; the method has important research significance on related disease prevention and treatment research.

Methods for sharing user-configurable graphics constructs, such as for use with portable multifunction devices, are disclosed. The methods described herein allow for sharing user-configurable graphics constructs that contain independently configurable graphic elements and graphic resources. Non-transitory computer-readable storage media, systems, and devices configured to perform the methods described herein are also disclosed.

The embodiment of the invention relates to the technical field of biological recognition, and discloses a method, a cloud platform and a system for rapidly screening drug addicts based on a skin spectrum. The method comprises the following steps: acquiring spectrum sequence data of a non-habitual palm of a screened person by adopting a skin spectrum information acquisition instrument; preprocessing the spectrum sequence data; based on the gender of the screened person, inputting the preprocessed spectrum sequence data into different drug taking identification models for identification, and obtaining a drug taking screening result; and feeding back a drug taking screening result to the mobile terminal for displaying. According to the scheme for rapidly screening the drug addicts based on the skin spectrum, compared with a traditional sampling detection method (blood detection, urinalysis, hair detection and the like), the scheme has the advantages of being free of damage in situ, and compared with a non-invasive screening method (expiration detection and iris / pupil detection), the scheme has the advantages of being rapid and few in limitation, and the scheme can be used for rapidly screening the drug addicts on site. The method is more effective, simpler, more reliable and higher in accuracy.

The invention relates to activity and fitness renewal. The present disclosure generally relates to navigating, viewing, and sharing campaign and fitness data, and interacting with fitness and / or campaign applications. In some examples, the scrolling activity data is based on content being displayed. In some examples, activity data for a friend may be viewed. In some examples, a notification and fitness data for a friend's completed fitness is received and displayed. In some examples, activity data received from friends is viewed and managed. In some examples, fitness data for multi-segment fitness is displayed in a three-dimensional stack on a map. In some examples, the fitness application operates in a restricted mode until a touch input having a characteristic intensity greater than a threshold intensity is received.

The invention relates to a derived hydrogen production method in a fused quartz femtosecond laser processing / welding process, which comprises the following step of: treating and washing coated fused quartz glass by femtosecond laser to prepare hydrogen. The invention provides a brand new hydrogen production thought, on one hand, a large number of atomic-scale defects are introduced in an ALD coating mode, and the source of Si-OH is increased; on the other hand, four hydrogen source paths are provided through the reaction process of SiOH, interstitial water molecules, Si-OH and atomic-scale defects under the action of femtosecond laser. The method is clean, simple and efficient, and does not need a catalyst; hydrogen is produced through renewable water energy and continuously and repeatedly utilized fused quartz glass, carbon dioxide emission is avoided in the reaction process, and the method has important guiding significance on development of a new laser hydrogen production technology.

The present disclosure generally relates to devices and methods for processing and disambiguating touch inputs. An electronic device detects a first intensity increase of an input on an input followed by a first intensity decrease of the input on the input and determines whether the first decrease satisfies a release click detection criterion. The release click detection criterion requires that the intensity of the input decrease to be below a first release click intensity threshold, which is selected based on the intensity of the input during the first intensity increase. Based on determining that the first intensity decrease of the input satisfies the release click detection criterion, the device provides first feedback, such as performing an operation to change a displayed user interface and / or providing a tactile output, indicating that the first intensity decrease of the input was recognized as a release click.

This invention discloses a method for preparing and applying a sodium borohydride-modified self-supporting anode for AEM water electrolyzers. Firstly, an amorphous ternary metal hydroxyl oxide precursor is grown in situ on a nickel substrate via room temperature liquid phase deposition. The process involves the presence of Co in solution. 2+ Fe 3+ Ni ions are introduced through slight corrosion of the nickel foam matrix. 2+ The ions, the three, and the OH- produced by hydrolysis ⁻ Co-deposition occurs under the influence of dissolved oxygen, leading to the self-assembly of amorphous nanosheet structures on the substrate surface. Subsequently, a mild chemical reduction treatment with sodium borohydride solution is used to obtain a structurally stable and high-performance self-supporting electrode. The method described in this embodiment is mild, simple, low-cost, and has good versatility.

The present invention provides a method for degerming or inactivating bacteria or viruses floating in the air, the method comprising the steps of: preparing a humidifier filled with an aqueous solution having hypochlorous acid as the main component; and operating the humidifier to spray an aqueous solution having hypochlorous acid as the main component to the space, the spraying being performed while humidifying the space, and the chlorine in the aqueous solution being chlorine of hypochlorous acid at least 40 mol%.

The present invention relates to the technical field of kitchen waste, and discloses an efficient kitchen waste treatment system and a treatment method thereof, comprising a treatment box, a functional structure fixedly installed on the outer surface of the treatment box, a transfer box fixedly installed on the outer surface of the treatment box, a feed box fixedly installed on the outer surface of a side of the transfer box away from the treatment box, a feed pipe fixedly installed on the top of the feed box, and a processing structure fixedly installed on the outer surface of the feed box. The efficient kitchen waste treatment system and the treatment method thereof are configured to pour the garbage to be treated into the interior of the feed box through the feed pipe, and then start a No. 1 servo motor and a No. 2 servo motor to drive a No. 1 threaded rod and a No. 2 threaded rod to rotate, and limit the two threaded turntables through a limit groove and a limit block, so that the No. 1 threaded rod and the No. 2 threaded rod drive the two threaded turntables to move relative to each other, thereby squeezing the garbage inside the filter barrel.

The invention belongs to the technical field of cell molecular biology, and particularly relates to a colorectal cancer molecular marker and a detection method and application thereof. The invention provides a colorectal cancer molecular marker circETFA (2, 3, 4), the nucleotide sequence of the colorectal cancer molecular marker circETFA (2, 3, 4) is as shown in SEQ ID NO: 1, the colorectal cancer molecular marker circETFA (2, 3, 4) can be used for detection and prognosis of colorectal cancer, primers for detecting the expression quantity of circETFA (2, 3, 4) are as shown in SEQ ID NO: 2 and 3, and the colorectal cancer molecular marker circETFA (2, 3, 4) is strong in specificity, high in sensitivity and stable in result. The invention further provides a shRNA sequence of circETFA (2, 3, 4), the positive and negative strand sequences of the shRNA sequence are shown as SEQ ID NO: 4 and 5, and the shRNA sequence can be used for knocking down expression of circETFA (2, 3, 4) in colorectal cancer cells, can inhibit malignant proliferation of the colorectal cancer cells and is used for preparing colorectal cancer drugs.