Abstract: A photovoltaic grid-connected system and a control method therefor. The photovoltaic inverter is connected to the grid through a synchronous motor back-to-back drive system including two synchronous motors. The photovoltaic inverter is controlled to operate in the current source mode after the photovoltaic grid-connected system is started, the synchronous motor back-to-back drive system is controlled to operate in the generator mode, and the excitation current of the first synchronous motor is controlled to maintain the voltage stability of the AC side of the photovoltaic inverter. Therefore, the stability and safety of the power grid is significantly improved and the impact of intermittent new energy on the power grid is reduced by virtue of the characteristics of the synchronous motor, and the maximum power point of the photovoltaic array can be tracked to avoid loss of power generation, and traditional photovoltaic inverters can be used without any modification.

Abstract: A wireless communication method is disclosed. The method comprises monitoring, by a wireless communication terminal, a physical downlink control channel, PDCCH, during an active time based on at least a low power wake up signal, LP-WUS.

Abstract: Video coding systems or apparatus utilizing context-based adaptive binary arithmetic coding (CABAC) during encoding and/or decoding, are configured according to the invention with an enhanced binarization of non-zero Delta-QP (dQP). During binarization the value of dQP and the sign are separately encoded using unary coding and then combined into a binary string which also contains the dQP non-zero flag. This invention capitalizes on the statistical symmetry of positive and negative values of dQP and results in saving bits and thus a higher coding efficiency.

Abstract: A mutated Csf1r gene is disclosed. The mutated Csf1r gene is obtained by changing the 2557th nucleotide of a Csf1r gene from C to A, leading to obtain a mutated protein encoded by the mutated Csf1r gene substitute the 853rd amino acid from proline to threonine. The mutated protein, expression vectors, recombinant viruses, recombinant cells, recombinant bacteria, or recombinant vectors are also disclosed. A method for constructing a murine model with mutations in Csf1r gene. This method includes introducing the targeted vector containing the mutated Csf1r gene into mouse embryonic stem cells, followed by injection into blastocysts to generate F0 generation mice. The F0 generation mice are then bred with mice that specifically express Cre enzyme in tissues, followed by screening. The constructed murine model has significant applications in studying the pathogenic mechanisms of brain diseases caused by microglial cell dysfunction and screening valuable medicine for treating brain diseases.

Abstract: Methods, systems and apparatus for wireless communication are described. One example method of wireless communication includes selecting, by a wireless device, a monitoring behavior for monitoring a control channel. The method further includes, monitoring, by the wireless device, the control channel according to the monitoring behavior. The monitoring behavior may include a skipping operation during which monitoring is disabled.

Abstract: Methods, systems, and devices for data management are described. A method may include obtaining a new snapshot of a relational database of a source computing environment, comparing the new snapshot of the relational database to a prior snapshot of the relational database, updating, in response to the comparison indicating that data of a row of a relational database table changed between the prior snapshot and the new snapshot, a field of a second versioning control column of a corresponding row of a backup database table of the set of backup database tables to indicate a version of the new snapshot, and adding, in response to the comparison indicating that the data of the row of the relational database table changed, an additional row to the backup database table, where a field of a first versioning control column of the additional row includes an indication of the version of the new snapshot.

Abstract: A wireless device includes: a first circuit configured to perform normal operation of the wireless device in a normal operation mode and configured to be powered down in a power-down standby (PDS) mode; a second circuit at least including a low-power processor, a built-in battery, and an event detector, and configured to perform a power management function; a power source; and a switch configured between the first circuit and the power source and controlled by the second circuit to connect the first circuit to the power source or disconnect the first circuit from the power source. The power management function includes: in response to detecting a wake-up event by the event detector, changing the first circuit from the PDS mode to the normal operation mode; and in response to detecting a PDS event by the event detector, changing the first circuit from the normal operation mode to the PDS mode.

Abstract: In-field advanced interconnect verify schemes are disclosed herein. In some embodiments, a system includes first dummy pads, second dummy pads, a current source, a comparator, current source access (CSA) transistors, and comparator access (CA) transistors. The first dummy pads can be electrically connected in series to form a first chain. The second dummy pads can be electrically connected in series to form a second chain. The CSA transistors can selectively couple the current source to a first end of the first chain, a first end of the second chain, a second end of the first chain, and a second end of the second chain. The CA transistors can selectively couple an input of the comparator to the first end of the first chain, the first end of the second chain, the second end of the first chain, and the second end of the second chain.

Abstract: This disclosure relates generally to transmission resource or transmission parameters update of various types in wireless communications. Performed by a wireless terminal in a wireless network, the method including receiving a message from a wireless communication node of the wireless network, the message indicating an update to a wireless resource or a transmission parameter associated with the wireless resource, the wireless resource being previously allocated to the wireless terminal for data reception or data transmission; parsing the message based on a type of the update to the wireless resource or the transmission parameter associated with the wireless resource to obtain the update; and transmitting or receiving data, or skipping transmitting or receiving data using the wireless resource based on the update.

Abstract: In wireless communication, a configuration of uplink (“UL”) signaling transmissions can be through a specific window or pattern. The UL transmission can be concentrated in a time period to save power. Specifically, an active time is determined as a time period for UL signals. Non-active time may include different types of UL signals. The active time may be configured and enabled under different conditions.

Abstract: A wireless communication method for use in a wireless terminal is disclosed.

Abstract: The present disclosure relates to crystalline polymorph forms of 6-[(3S,4S)-4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl]-3-tetrahydropyran-4-yl-7H-imidazo[1,5-a]pyrazin-8-one.

Abstract: The present invention provides a salt of a dioxane quinoline compound, a crystal form thereof, preparation methods therefor and uses thereof. Specifically, the present invention relates to N-(3-fluoro-4-((5-(3-morpholinopropoxy)-2,3-dihydro-[1,4]dioxano[2,3-f]quinolin-10-yl)oxy)phenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide, a crystal form thereof and preparation methods therefor, and uses in the preparation of a drug as an inhibitor of tyrosine kinases (e.g. VEGFR-2 and c-MET, etc.).

Abstract: A seat turntable mechanism and a vehicle are provided. The seat turntable mechanism includes a movable disc (1) and a fixed disc (2), which are limitedly connected in an axial direction and are rotatable relative to each other in a circumferential direction. The seat turntable mechanism further includes a core member (3), a limiting member, and a drive component (4). In the core member (3), an inner toothed plate (31) is provided with an inner gear ring (a), an outer toothed plate (32) is provided with an outer gear ring (b), an eccentric component, the inner gear ring (a), and the outer gear ring (b) forms a small teeth difference planetary gear transmission mechanism, and a gap elimination component is configured to eliminate gaps between each component. The drive component (4) is in transmission connection with the eccentric component. The limiting member is configured to limit self-rotation of the outer toothed plate (32), so as to allow the outer toothed plate (32) to perform circular motion.

Abstract: This application provides an uplink precoding indication method and a communication apparatus. The method includes: A terminal device receives first information from a network device, where the first information indicates M predefined codewords, transmit antenna ports corresponding to any one of the M predefined codewords are fully coherent, and M is a positive integer. In addition, the terminal device determines, based on the first information, a first uplink precoding matrix used by the terminal device to send uplink data, where a quantity of transmit antenna ports corresponding to the first uplink precoding matrix is greater than a quantity of transmit antenna ports corresponding to any one of the M predefined codewords. According to the method, an uplink precoding matrix applicable to more transmit antenna ports can be flexibly indicated, thereby effectively improving uplink transmission performance.

Abstract: A wireless communication method for use in a wireless terminal and the purpose of wireless terminal and wireless node power saving is disclosed. The method comprises receiving, from a wireless network node, configuration information of a low-power signal and/or cell discontinuous transmission/reception, and monitoring the low-power signal and/or physical control channel, PDCCH, based on the configuration information, wherein the low-power signal comprises a first low-power signal and a second low-power signal, and wherein the low-power signal is associated with triggering the wireless terminal to leave a low-power state.

Abstract: Techniques are described to perform paging related operation or power saving related operation. An example wireless communication method includes receiving, by a communication device in a low power radio resource control (RRC) state, a first signal that includes a first set of parameters, and performing, by the communication device, a paging related operation based at least on the first set of parameters or a power saving related operation based at least on the first set of parameters.

Abstract: A snap-fit plasma display module includes a first substrate and a second substrate. A plasma display cavity is formed between the first substrate and the second substrate, and the plasma display cavity is filled with plasma particles. A surface of the first substrate is provided with a filter layer, and a surface of the second substrate facing the first substrate is provided with a pixel electrode layer. A plasma isolation structure extending toward the first substrate is arranged on the pixel electrode layer, a surface of the filter layer facing the second substrate is provided with a snap-fit structure, the snap-fit structure is adapted to the plasma isolation structure to fix the first substrate and the second substrate, and each of the surface of the filter layer facing the second substrate and a surface of the snap-fit structure facing the second substrate is provided with a conductive dielectric layer.