Abstract: A method for full-field measurement using Doppler imaging, comprising the following steps: turning on a laser and adjusting the laser; adjusting a spatial filter to obtain circular laser spots having uniform intensity distribution; adjusting a quarter-wave plate and a whole polarizer in a system, and requiring two beams in a reference object and a measured object having different frequencies and perpendicular polarization directions; applying slight pressure to the measured object, setting a charge coupled device (CCD) camera into a continuous acquisition mode, observing interference fringes, and adjusting a light path so that the fringes are clear and visible; setting the sampling frequency, sampling time, captured image format and resolution size of the CCD camera; turning on a lithium niobate crystal drive power switch to produce a heterodyne carrier frequency; applying continuous equal pushing force to the measured object by means of piezoelectric ceramics (PZT) so as to make the measured object produce c

Abstract: The hybrid battery system includes a primary battery pack, a secondary battery pack, a battery control unit, a battery pack positive terminal, and a battery pack negative terminal. The battery control unit includes a management module and a variable resistor. The primary battery pack supplies power at lower temperatures, while the secondary battery pack supplies power at higher temperatures. The primary battery pack is unsafe at higher temperatures, and the primary cells within the primary battery pack are modified to mitigate the dangers that previously rendered the primary battery pack unusable in a hybrid battery pack at higher temperatures. The invention includes the method of safely operating the hybrid battery system with the modified primary battery cells of the primary battery pack.

Abstract: Provided is a phase self-correction circuit, including a trigger signal operation module and a signal phase correction module. The trigger signal operation module and the signal phase correction module are both composed of a plurality of discrete components. The trigger signal operation module is configured to perform a logical operation on an input phase standard reference signal and actual transmission signal, to obtain a target trigger signal for triggering the signal phase correction module; and the signal phase correction module is configured to output, based on trigger modes of the target trigger signal and the actual transmission signal, a self-correction transmission signal with the same waveform as that of the phase standard reference signal, to realize phase self-correction on the actual transmission signal.

Abstract: Computer-implemented methods, non-transitory, computer-readable media, and computer-implemented systems for blockchain-based payment withholding and agreement signing are described. In one computer-implemented method, an agreement signing transaction submitted by a user is received and used to authorize a payment system to provide a payment withholding service for a payment order of the user in a third-party service system. The agreement signing transaction includes agreement signing information of a tripartite agreement submitted by the user. Withholding verification logic declared in a first smart contract published on the blockchain is invoked to check whether there is a withholding agreement signed between the payment system and the third-party service system on the blockchain. If yes, the tripartite agreement is created that authorizes the payment system to provide the payment withholding service for the payment order for the user and published to the blockchain for certificate storage.

Abstract: Provided is a method for controlling an anti-yaw damper, including: obtaining lateral acceleration signals of a frame and performing a first preprocessing on the lateral acceleration signals; obtaining a pressure difference between two chambers of an anti-yaw damper piston and performing a second preprocessing of the pressure difference; obtaining an MPPT algorithm objective function value at the current moment and an MPPT algorithm objective function value at the previous moment according to first preprocessing results and second preprocessing results, and comparing the MPPT algorithm objective function value at the current moment with the MPPT algorithm objective function value at the previous moment; and controlling the adjustment direction of an electromagnetic proportional valve of the anti-yaw damper according to the comparison result.

Abstract: A method is disclosed herein. The method includes dicing a wafer and applying a mask. The method includes spraying die bond material, at a first temperature, to a surface of the wafer and cooling the die bond material at a second temperature to at least partially solidify the die bond material. The method also includes removing the mask from the wafer through the die bond material. After the removing of the mask, the method includes curing the die bond material to form a die attach film layer on the wafer.

Abstract: A data processing method and a device, the method including determining, by an optical network unit, in a received data stream, after the optical network unit enters a pre-synchronization state, a position of a forward error correction (FEC) codeword boundary in the data stream based on a position of a physical synchronization sequence (Psync) field, performing an FEC codeword decoding check, where the Psync field is a field that matches a preset Psync, in the data stream, and entering, by the optical network unit, a synchronization state in response to an FEC codeword among N consecutive FEC codewords in the data stream passing the decoding check, where N is an integer greater than or equal to 1.

Abstract: A vehicle includes an electric machine, a battery, an electrical circuit, an overcharge limit device, and a controller. The electric machine is configured to propel the vehicle. The battery has a plurality of cells and is configured to provide electrical power to the electric machine. The electrical circuit is configured to deliver the electrical power from the battery to the electric machine. The overcharge limit device is configured to individually disconnect each of the plurality cells from the circuit in response to an internal pressure of a respective cell exceeding a pressure threshold. The controller is programmed to, in response to detecting a first set of parameters that are indicative of a first of the cells being disconnected from the electrical circuit via the overcharge limit device, discontinue control the first of the cells.

Abstract: A rail vehicle tilting system, comprising a controller (101), a high-pressure air cylinder (102), a left side air spring (105), a right side air spring (107), a left side additional air chamber (106), a right side additional air chamber (108), a first three-position electromagnetic proportional flow valve (109), a second three-position electromagnetic proportional flow valve (110), a sensor, a differential pressure valve (104) and a two-position switch valve (111).

Abstract: A semiconductor device package includes a semiconductor device with a ball grid array having a first subset of solder balls composed of metallic solder, and a second subset of solder balls composed of a composite material that includes a polymer core surrounded by a solder layer. The solder balls of the second subset can have a lower elastic modulus than the solder balls of the first subset and resist cracking due to thermal stresses on the semiconductor device package. In one embodiment, at least a portion of the second subset of solder balls is located on the periphery of the ball grid array such that the first subset of solder balls may be surrounded, at least partially, by the second subset of solder balls.

Abstract: A covert channel construction method in a blockchain network includes: sharing, by a first terminal and a second terminal, a secret key and transaction information, and generating a blockchain network address by using the secret key and a standard public key address generation algorithm, wherein the transaction information comprises a permutation mapping table and an information capacity of a single transaction; sending, by the first terminal, information by using an information hiding method, and performing simultaneously, by the first terminal and the second terminal, transaction recording; and monitoring, by the first terminal and the second terminal, whether an account transaction of the blockchain network address exists in a blockchain, if yes, extracting, by the second terminal, the information by using an information extraction method, and after extracting the information, replying to the information by using the information hiding method, thereby enabling communication parties to safely transmit infor

Abstract: The present disclosure provides devices, systems, and methods related to sequencing a biopolymer. In particular, the present disclosure relates to methods for sequencing a polynucleotide using a bioelectronic device that includes protein assemblies used as coupling molecules in bioelectronic circuits. The present disclosure also provides multimeric protein assemblies with various combinations of live and dead subunits arranged to maximize conduction.

Abstract: A method and device for performing electrocardiography (ECG) analysis, the method including receiving ECG data that is from one or more leads, generating an image based on the ECG data, obtaining a feature map based on the image, inputting the feature map to a first neural network, the first neural network configured to generate an output based on the feature map inputted, inputting the output of the first neural network to a second neural network, the second neural network configured to obtain at least one temporal feature of the image based on the output of the first neural network and a previous state of the second neural network, and classifying a signal included in the ECG data based on the at least one temporal feature obtained by the second neural network.

Abstract: The present disclosure relates to compositions comprising at least one carbonaceous particulate material comprised of synthetic graphite particles having a BET specific surface area (SSA) of equal to or less than 4 m2/g, and further comprising between about 5 and about 75% (w/w) of at least one carbonaceous particulate material comprised of natural graphite particles coated with non-graphitic carbon and having a BET SSA of equal to or less than 8 m2/g. Such compositions are particularly useful as active material for negative electrodes in, e.g., lithium-ion batteries and the like in view of their overall favorable electrochemical properties, particularly for automotive and energy storage applications. The present disclosure also relates to the use of said non-graphitic carbon-coated natural graphite particles for preparing compositions that are suitable for being used as an active material in a negative electrode of, e.g., a lithium ion battery.

Abstract: The present disclosure relates to degradable polymers which contain a hydrophobic and hydrophilic segment which is sensitive to pH. In some aspects, the polymers form a micelle which is sensitive to pH and have backbones which are capable of undergoing degradation in vivo. In some aspects, the disclosure also provides methods of using these degradable polymers for the delivery of a drug.

Abstract: A quick-locking piston-type floating power supply connector includes a housing assembly, a contact assembly, and a base assembly, wherein the housing assembly is sleeved on an outer wall of one end of the base assembly, one end of the contact assembly is fixed in the base assembly, the other end of the contact assembly extends from the base assembly, the other end of the contact assembly extends outwards to be partially embedded into a cover plate assembly, a floating contact member of a piston-type structure is vertically arranged at the terminal of the other end of the contact assembly, the floating contact member is mounted in the cover plate assembly, a mounting opening of the floating contact member extends outwards to the cover plate assembly, and the floating contact member is used for meeting the electrical assembly requirements of PCBs with different heights.

Abstract: A covert channel construction method in a blockchain network includes: sharing, by a first terminal and a second terminal, a secret key and transaction information, and generating a blockchain network address by using the secret key and a standard public key address generation algorithm, wherein the transaction information comprises a permutation mapping table and an information capacity of a single transaction; sending, by the first terminal, information by using an information hiding method, and performing simultaneously, by the first terminal and the second terminal, transaction recording; and monitoring, by the first terminal and the second terminal, whether an account transaction of the blockchain network address exists in a blockchain, if yes, extracting, by the second terminal, the information by using an information extraction method, and after extracting the information, replying to the information by using the information hiding method, thereby enabling communication parties to safely transmit infor

Abstract: This application provides a transmission method, a terminal device, and a network device. The transmission method includes: sending, by a terminal device, a second message to a network device after receiving a first message that is sent by the network device and that is used to instruct to activate a secondary carrier cell, where the second message is used to indicate a preset time; and receiving, by the terminal device, a third message that is sent by the network device based on the preset time, where the third message is used to instruct to trigger resynchronization of the secondary carrier cell. The transmission method in this application helps quickly reduce a time for triggering resynchronization of an uplink secondary carrier cell, and improve an uplink throughput.

Abstract: A vehicle includes a battery that is rechargeable using an external power source coupled to the vehicle. The vehicle includes a controller that is programmed to estimate parameters of the battery using a parameter estimation algorithm. The controller is programmed to change a charging current when connected to the external power source to provide an input to the parameter estimation algorithm that is sufficiently dynamic such that the parameter estimation algorithm converges to an accurate solution.

Abstract: A device and a method for detecting cigarette fly ash by a gray-scale difference based on machine vision (MV) are provided. A manipulator holds a cigarette as a detection sample to simulate a human smoking action, and multiple groups of cameras track a simulated smoking process of the detection sample synchronously in real time. It is determined whether fly ash appears based on a gray-scale difference of burning ash columns, produced without being subjected to flicking, in acquired images. A fly ash area of the burning ash columns of the cigarette is calculated by an area with the gray-scale difference of the burning ash columns of the cigarette in two sequential images of the burning ash columns of the cigarette, and a fly ash amount is further determined. The detection of the amount of fine fly ash is converted into the detection of the gray-scale difference.