Abstract: There is disclosed a circuit breaker arrangement for interrupting a current flowing through a direct current (DC) transmission line including a semiconductor switching device and a pulse injection circuit configured to inductively inject into the transmission line a pulse current that opposes the current flowing through the transmission line to thereby reduce the current in the transmission line to cause the semiconductor switching device to turn-off to interrupt the path for the current flow through the transmission line.

Abstract: A method includes: configuring, by a network device, M BPs for at least one terminal device, where the M BPs are located on one frequency domain resource; determining, by the network device, first indication information related to X BPs in the M BPs, where the first indication information includes at least one field, each field is used to indicate transmission types in at least one time unit on the X BPs; sending, by the network device, the first indication information to the at least one terminal device, where the at least one terminal device includes a first terminal device; and sending, by the network device, second indication information to the first terminal device, where the second indication information is used to indicate an index relationship between that at least one of N BPs configured for the first terminal device and the at least one field in the first indication information.

Abstract: Provided herein are nucleic acid molecules and vectors comprising variant copper transporting ATPase 2 (ATP7B) nucleic acid sequences. Such sequences have been optimized for expression in mammalian cells, liver cells, and/or from an adeno associated viral vector (AAV), including truncated and/or codon optimized variants. Also provided are viral vectors comprising such ATP7B variant nucleic acid sequences, and methods of use thereof for treating disorders associated with an ATP7B deficiency, such as Wilsons disease.

Abstract: A communication method and a communication device based on a parallel system, a terminal and a computer readable storage medium are provided. The parallel system includes a fieldbus and two or more communication nodes connected to the fieldbus in parallel. The communication method includes: acquiring a status parameter of a target communication node; converting the status parameter into a logic level signal; generating an input differential signal based on the logic level signal; sending the input differential signal to the fieldbus and synchronously receiving an output differential signal from the fieldbus, where the output differential signal is generated by the fieldbus by performing a wired-AND operation on input differential signals received from the two or more communication nodes; and acquiring information of the communication nodes connected to the fieldbus based on the output differential signal.

Abstract: The present disclosure provides a three-phase AC/DC converter aiming for low input current harmonic. The converter includes an input stage for receiving a three-phase AC input voltage, an output stage for at least one load, and one or more switching conversion stages, each stage including a plurality of half bridge modules. The switches in each module operate with a substantially fixed 50% duty cycle and are connected in a specific pattern to couple a DC-link and a neutral node of the input voltage. The AC/DC converter further includes one or more controllers adapted to vary the switching frequency of the switches in the switching conversion stages based on at least one of load voltage, load current, input voltage, and DC-link voltage. The converter can also include one or more decoupling stages, such as, inductive components adapted to decouple the output stage from the switching conversion stages.

Abstract: A method for generating simulated point cloud data, a device, and a storage medium includes: acquiring at least one frame of point cloud data collected by a road collecting device in an actual environment without a dynamic obstacle as static scene point cloud data; setting, least one dynamic obstacle in a coordinate system matching the static scene point cloud data; simulating in the coordinate system, a plurality of simulated scanning lights emitted by a virtual scanner located at an origin of the coordinate system; updating the static scene point cloud data according to intersections of the plurality of simulated scanning lights and the at least one dynamic obstacle to obtain the simulated point cloud data comprising point cloud data of the dynamic obstacle; and at least one of adding a set noise to the simulated point cloud data, and, deleting point cloud data corresponding to the dynamic obstacle according to a set ratio.

Abstract: Techniques are disclosed for determining a target language for a communication session and configuring a language mode of an input method editor (IME) to the target language. An example methodology implementing the techniques includes, by a computing device, detecting a communication to a recipient via a software application running on the computing device, determining a target language for the communication, and configuring a language mode of an input method editor to the target language. The target language may be determined based on an attribute or attributes of the recipient of the communication. In some cases, the target language may be determined based on an attribute or attributes of a contents of a prior communication.

Abstract: Provided is a determination method of differential protection suitable for an electricity transmission line with multi-terminal T-connection.

Abstract: In some example embodiments, there may be provided an apparatus. The apparatus may include a surface including at least one electro-magnetic reflective element programmed to provide a plurality of reflected signals, such that the plurality of reflected signals constructively adds at a location of a receiver of the plurality of reflected signals. Related systems, methods, and articles of manufacture are also described.

Abstract: A method and an electronic device for detecting pedestrian stride length and walking path. A peak value of longitudinal acceleration data is detected. The longitudinal acceleration data between two adjacent peaks are integrated twice. A longitudinal displacement amplitude value is obtained based on the integration result. The stride length data is obtained based on the longitudinal displacement amplitude value, user's foot length and user's leg length. The method and the electronic device for detecting pedestrian stride length and walking path provided improves the positioning accuracy of the pedestrian and reduce the implementation cost.

Abstract: A system and a method for recommending a set of fashion items. The method includes: providing fashion categories, fashion graphs each corresponding to one fashion category, and fitting formulas for each fashion graph; receiving a query fashion item having a query fashion attribute; selecting a fashion category, where the query fashion attribute in the selected fashion category has a highest number of fashion items; performing a similarity search between image of the query fashion item and images of fashion items in the fitting formulas; mapping the searched fitting formula to the fashion graph of the selected fashion category to obtain nodes matching the fashion items in the searched fitting formula; and recommending the set of fashion items respectively selected from fashion items in the matched nodes. The fitting formulas are generated based on co-appearance of fashion items from any two nodes of the corresponding fashion graph.

Abstract: The invention provides a graphene channel silicon carbide power semiconductor transistor, and its cellular structure thereof. Characterized in that, a graphene strip serving as a channel is embedded in a surface of the P-type body region and two ends of the graphene strip are respectively contacted with a boundary between the N+-type source region and the P-type body region and a boundary between the P-type body region and the N-type drift region, and the graphene strip is distributed in a cellular manner in a gate width direction, a conducting channel of a device is still made of graphene; in the case of maintaining basically invariable on-resistance and current transmission capacity, the P-type body regions are separated by the graphene strip, thus enhancing a function of assisting depletion, which further reduces an overall off-state leakage current of the device, and improves a breakdown voltage.

Abstract: The invention provides a graphene channel silicon carbide power semiconductor transistor, and its cellular structure thereof. Characterized in that, a graphene strip serving as a channel is embedded in a surface of the P-type body region and two ends of the graphene strip are respectively contacted with a boundary between the N+-type source region and the P-type body region and a boundary between the P-type body region and the N-type drift region, and the graphene strip is distributed in a cellular manner in a gate width direction, a conducting channel of a device is still made of graphene; in the case of maintaining basically invariable on-resistance and current transmission capacity, the P-type body regions are separated by the graphene strip, thus enhancing a function of assisting depletion, which further reduces an overall off-state leakage current of the device, and improves a breakdown voltage.

Abstract: The present invention relates to a tri-axial mechanical test apparatus and method for simulating the process of freezing the high-pressure water into ice. The tri-axial mechanical test apparatus comprises a main body loading system, a freezing system, and a sample test system; in the main body loading system, a flange, an axial pressure piston and a pressure-bearing shell are constituted to a loading main body, and the axial pressure and confining pressure are controlled directly by a tri-axial servo tester and indirectly by an oil-water separator respectively; in the freezing system, a circumferential freezing liquid circulation channel and a base freezing liquid circulation channel are connected to an external cold source for cooling and freezing, and a dissoluble shell is provided on the periphery of the sample to ensure the shape of ice; in the sample test system, a serial of optical fiber sensors in the sample is connected to an optical fiber data collector, to measure temperature and strain.

Abstract: This application relates to the field of communications technologies and discloses a signal transmission method and device, and a system. The method includes: determining, by a first device after receiving first information transmitted by a second device, to perform at least one of interference measurement and channel measurement on a resource, or to transmit a reference signal on a resource. The second device can configure the resource of the reference signal for the first device by transmitting the first information to the first device that is in a transmitting state or a receiving state, thereby improving flexibility of resource configuration of the reference signal. When this technical solution is applied to cross interference measurement, accuracy of inter-UE interference measurement is improved.

Abstract: Systems and methods for focusing a light pulse within a focus area using nonlinear photoacoustic wavefront shaping (PAWS) are disclosed herein. The method includes modulating a spatial phase pattern of a light pulse's waveform based on a Grueneisen-relaxation photoacoustic (GR-PA) feedback signal. In addition, systems and methods for performing Grueneisen-relaxation photoacoustic microscopy (GR-PAM) are disclosed herein that include analyzing photoacoustic signals resulting from illumination of a focus region by two closely spaced light pulses. A method of obtaining an absorption coefficient of a sample using Grueneisen-relaxation photoacoustic microscopy (GR-PAM) is also disclosed.

Abstract: Embodiments provide a method for transmitting a reference signal between a base station and a terminal. In this method, a parameter is determined by a terminal based on frequency domain location information of a frequency domain resource unit. The parameter is used to determine a sequence of the reference signal, and the reference signal is carried on the frequency domain resource unit. The reference signal can be sent to the base station by the terminal. In some embodiments, the reference signal sent by the base station can be received by the terminal. According to this method, a peak-to-average power ratio when a single terminal sends data to a base station can be reduced, and communication interference between different cells can be canceled or reduced as much as possible.

Abstract: Embodiments of the present application provide a reference signal transmission method, a device, and a system. The method includes: determining, by a first device, at least one reference signal generation sequence corresponding to at least one frequency-domain resource group that is on a symbol carrying a reference signal and that is used to send the reference signal, where one frequency-domain resource group is corresponding to one reference signal generation sequence; and generating, by the first device, the reference signal based on the at least one reference signal generation sequence, and mapping the reference signal to a time-frequency resource whose time domain is the symbol and whose frequency domain is the at least one frequency-domain resource group.

Abstract: Embodiments of the present invention provide a data transmission method, a network device, and user equipment, including: sending, by the network device, first indication information and second indication information to the user equipment, where the first indication information is used to indicate a frequency domain resource of a physical random access channel of the user equipment, the second indication information is physical layer control signaling, the second indication information is used to indicate a time domain resource of the physical random access channel, and a random access resource corresponding to the frequency domain resource and the time domain resource is used to carry random access information of the user equipment. In the embodiments of the present invention, a resource of a random access channel is dynamically indicated by using the physical layer control signaling, to improve random access resource allocation flexibility.

Abstract: An optical signal analyzing apparatus enables real-time and single-shot analysis simultaneously in both time and frequency domains with spectro-temporal analysis. The apparatus includes a fiber tap coupler for receiving an input optical signal from continuous wave (CW) to ultra-short pulses (femtosecond-picosecond). An optical splitter directs part of the signal to a frequency channel and part to a time channel A photodiode in the time channel directly monitors the intensity evolution and converts it to an electrical signal. In the frequency channel, two sub-channels are provided: one for CW/quasi-CW and one for short-pulse components. A signal processor analyses the time- and frequency-domain data from the time channel and frequency channel and displays the temporal and spectral evolutions simultaneously, so that the two different pieces of information of a non-repeated dynamic event can be correlated in different domains.