Abstract: Aspects of the disclosure are directed to a method for use on a blockchain network that includes an accounting node subnetwork having accounting nodes configured to record a data block onto a blockchain and a service node having service nodes configured to verify data blocks recorded by the accounting nodes onto the blockchain. The method can include generating a signature based on transaction information to be included in a data block to be added onto the blockchain by using a key specific to the accounting node. The method can further include adding the transaction information and the generated signature to the data block and adding the data block onto the blockchain, and transmitting the signature to the service nodes in the service node subnetwork, so that the service nodes perform signature verification on the signature based on the key specific to the accounting node.

Abstract: A method for evaluating degree of an interstitial point of point cloud includes: building a tester, including a base, a first object, and a second object; mounting a LiDAR on the base, to cause that light emitted by the LiDAR can be incident to the first object and the second object; emitting detection pulses to the first object and the second object by the LiDAR; receiving echo pulses reflected by the first object and the second object, and generating point cloud based on the echo pulses; determining whether an interstitial point exists in the point cloud; increasing the distance between the first object and the second object when an interstitial point exists in the point cloud; repeating until no interstitial point exists in the point cloud, and recording the distance between the first object and the second object at this moment, to characterize the degree of the interstitial point.

Abstract: Disclosed are a metal-organic framework composite and a preparation method and use thereof. The metal-organic framework composite includes a cyclodextrin metal-organic framework (CD-MOF) material, and nano-silver and caffeic acid that are loaded in the CD-MOF material; wherein the nano-silver is loaded at 4% to 5% of a total mass of the composite; and caffeic acid is loaded at 11% to 12% of the total mass of the composite. The method for preparing the metal-organic framework composite includes: placing a CD-MOF material in an ethanol solution containing silver nitrate to obtain a first mixture, and subjecting the first mixture to a dynamic contact reaction in the dark to obtain a CD-MOF loaded with nano-silver; and placing the CD-MOF loaded with nano-silver in an ethanol solution containing caffeic acid to obtain a second mixture, and subjecting the second mixture to an incubation in the dark to obtain the composite.

Abstract: The present disclosure is directed to perovskite-based solar cell device structures and compositions comprising one or more near infrared sensitive semiconducting materials. The near infrared sensitive semiconducting materials can extend the photoresponse spectra of the devices to the near infrared region, thereby improving the power conversion efficiency of the solar cell.

Abstract: An inspiratory trigger atomizer for a patient with an airway disease, including: a main body including an atomization module and a nozzle connected thereto; an atomization driver; an air pressure sensor electrically connected to the driver, and a gas guide channel arranged in the main body, with a first end located in the nozzle and a second at a monitoring end of the sensor. The sensor acquires the air pressure in the nozzle that changes with the patient's breathing, identifies the inhalation state of the patient and generates a corresponding signal to trigger a main unit module to start the atomization driver. The atomizer has an extremely short inspiratory trigger response time, such that atomization can be quickly triggered after the patient inhales, and with atomization duration being 1.5 s, the patient can fully inhale a drug, so the atomizer can be applied to a wide range of people.

Abstract: A detection method and system for a LiDAR and a LiDAR are provided. The detection method includes: performing a reflection receiving operation to enable a detector of a channel to be detected to receive multiple echo signals reflected by a target plate, to receive multiple reflectivity measurement values of the channel to be detected for the target plate determined by the LiDAR; and determining a reflectivity parameter of the channel to be detected based on a result of the reflection receiving operation, where the reflectivity parameter of the channel to be detected includes: at least one of reflectivity accuracy of the channel to be detected or reflectivity precision of the channel to be detected. The detection method can determine the consistency of the reflectivity measurement of respective channels of the LiDAR and the reflectivity measurement accuracy of an entire LiDAR system.

Abstract: This application provides a picture processing method. The method includes: The encoder side obtains a to-be-processed picture, obtains a plurality of groups of visual sensory experience parameters, and encodes the to-be-processed picture and the plurality of groups of visual sensory experience parameters. At a decoder side, the method includes: The decoder side obtains a to-be-processed picture, obtains a zoom-in operation instruction, obtains one or more groups of visual sensory experience parameters corresponding to one or more local pictures, and separately processes the corresponding local picture based on the one or more groups of visual sensory experience parameters to obtain a processed local picture.

Abstract: A ventricular assist device includes a cannula including a lumen. An inlet valve on the cannula is in communication with the lumen. An outlet valve on the cannula is in communication with the lumen. A pump is connected to the lumen and adapted to draw blood through the inlet valve from the ventricle into the lumen and deliver blood from the lumen through the outlet valve into an aorta or pulmonary artery of the a patient into which the device is implanted. The ventricular assist device also includes an anchor including (a) a graft adapted to receive and hold the cannula and (b) an anchor retainer carried on a first end of the graft and adapted to secure the anchor to the ventricle wall.

Abstract: The disclosure relates to a staggered electrode bio-electro-Fenton groundwater circulation well system, including a groundwater circulation well, a water pumping and injecting assembly and an in-well bio-electro-Fenton assembly. The water pumping and injecting assembly is configured to realize water pumping and injection between different screening sections of the groundwater circulation well. The bio-electro-Fenton assembly arranged in a first screening section of the groundwater circulation well includes at least one electrode device. A cathode and an anode of the electrode device form a spatially staggered arrangement according to different distribution areas.

Abstract: The disclosure relates to a staggered electrode bio-electro-Fenton groundwater circulation well system, including a groundwater circulation well, a water pumping and injecting assembly and an in-well bio-electro-Fenton assembly. The water pumping and injecting assembly is configured to realize water pumping and injection between different screening sections of the groundwater circulation well. The bio-electro-Fenton assembly arranged in a first screening section of the groundwater circulation well includes at least one electrode device. A cathode and an anode of the electrode device form a spatially staggered arrangement according to different distribution areas.

Abstract: A method is described for seismic inversion with uncertainty quantification including performing low frequency Markov Chain Monte Carlo (MCMC) processes on rock physics models to generate low frequency models (LFMs) of rock properties and training a deep neural network using the low frequency models and synthetic seismograms to generate a trained neural network. Given a seismic dataset, the trained neural network can generate a high frequency rock property model and then broad-band MCMC processes can be performed on the high frequency rock property model for uncertainty quantification. The method is executed by a computer system.

Abstract: A film winding assembly for use in FRP tank production includes a pedestal, two supporting bases are slidingly provided on the pedestal, translation assemblies engaging with the two supporting bases are provided on the pedestal, the two support bases are configured to be hollow, sliding plates are slidably connected in the two supporting bases, a plurality of cushioning springs are connected in between the sliding plates and the two supporting bases, fixing seats are connected on the sliding plates. With the winding assembly according to the present invention, vibration generated during winding can be efficiently cushioned, users can lock the tank body quickly, tediousness and manpower consumption due to manual locking can be avoided, furthermore, with the present assembly, during winding of the tank body, particles stained on the plastic film can be cleanly timely.

Abstract: A method is described for seismic depth uncertainty analysis including receiving wavelet basis functions and cutoff thresholds and randomly perturbing wavelet coefficients in reduced wavelet space based on the wavelet basis functions and the cutoff thresholds to generate a plurality of random wavelet fields; receiving a reference model in a depth domain; transforming the plurality of random wavelet fields to the depth domain and combining them with the reference model to form candidate models; performing a hierarchical Bayesian modeling with Markov Chain Monte Carlo (MCMC) sampling methods using the candidate models as input to generate a plurality of realizations; and computing statistics of the plurality of realizations to estimate depth uncertainty. The method may be executed by a computer system.

Abstract: A method is described for stochastic modeling of seismic velocity and anisotropic parameters, including receiving 3D bounds of normal moveout velocity (Vnmo) and anisotropic parameter ?; modeling 3D bounds for vertical velocity V and anisotropic parameter ? based on the 3D bounds of Vnmo and ?; generating 3D model realizations of V, ?, and ? within the 3D bounds; and testing detectability of each of the 3D model realizations to create a detectable subset of model realizations wherein the detectability identifies which 3D model realizations will produce images with flat migrated gathers. The method may be executed by a computer system.

Abstract: A method is described for seismic depth uncertainty analysis including receiving wavelet basis functions and cutoff thresholds and randomly perturbing wavelet coefficients in reduced wavelet space based on the wavelet basis functions and the cutoff thresholds to generate a plurality of random wavelet fields; receiving a reference model in a depth domain; transforming the plurality of random wavelet fields to the depth domain and combining them with the reference model to form candidate models; performing a hierarchical Bayesian modeling with Markov Chain Monte Carlo (MCMC) sampling methods using the candidate models as input to generate a plurality of realizations; and computing statistics of the plurality of realizations to estimate depth uncertainty. The method may be executed by a computer system.

Abstract: A method is described for estimating depth uncertainty including receiving seismic data, a reference model, and trial model realizations; generating realization gathers from the trial model realizations; generating reference gathers from the reference model; determining a reference data fit based on the reference gathers and a data fit for trial models based on the realization gathers; selecting refined models from the trial model realizations based on the reference data fit, the data fit for trial models, and a data fit tolerance criterion; and calculating depth uncertainty based on statistics of the refined models. The method may be executed by a computer system.

Abstract: A method is described for generating a subsurface model using stochastic full waveform inversion by receiving a seismic dataset representative of a subsurface volume of interest; performing stochastic full waveform inversion of the seismic dataset to generate a long wavelength subsurface model; and performing full waveform inversion of the seismic dataset using the long wavelength subsurface model as a starting model to generate an improved subsurface model. The method may further include performing seismic imaging of the seismic dataset using the improved subsurface model to generate a seismic image and identifying geologic features based on the seismic image. The method may be executed by a computer system.

Abstract: A sunken FPC (Flexible Printed Circuit) connector includes an FPC connector and a circuit board, which are fixedly connected to each other, wherein the FPC connector comprises an insulating plastic base, an outer shell, wiring terminals and an FFC; the outer shell comprises a top plate, a bottom plate, and a connecting plate; an installation notch adapted to the shape of the FPC connector is provided on the circuit board; and a left bending fixed arm and a right bending fixed arm respectively extend upward from the left and right ends of the bottom plate. When being put in place relative to the installation notch, the FPC connector is welded and fixed with the circuit board by means of the left bending fixed arm and the right bending fixed arm, respectively.

Abstract: Disclosed is a floating female socket with a self-return function, which includes a female socket insulator, a female socket cover, a female socket terminal, a shielding housing, and an elastic guide plate. Two elastic guide plates are disposed, which are formed by upwardly extending left and right side walls of the shielding housing. The elastic guide plates each include an elastic side top and an arc-shaped guide part, where the elastic side top is configured to jack up against the female socket cover and is formed by inwardly extending an inner wall of the elastic guide plate. The arc-shaped guide part is formed by externally bending and extending a free end of the elastic guide plate.