Abstract: An access control method and apparatus for a Linux file system are provided. The method includes: registering a Linux security module in a procedure of starting a Linux operating system. The Linux security module is configured to perform the following operations: calling a signature verification module to obtain configuration information from a signature verification server, where the configuration information is used to record a protected file in the Linux file system and a protection policy for the protected file; and performing file protection on the protected file based on the protection policy. The signature verification module is configured to perform the following operations: verifying a signature of a first user in response to receiving a modification request of the first user for the configuration information; and modifying the configuration information if the verification on the signature of the first user succeeds.

Abstract: A backflow gas heating and throttling device, and a surface throttling system, where the surface throttling system includes a Christmas tree, a backflow gas heating and throttling device, and a gas collection pipeline connected in sequence. A pipeline between the Christmas tree and the backflow gas heating and throttling device and the gas collection pipeline are both provided with a valve, a thermometer, and a pressure gauge, and the gas collection pipeline is further provided with a flow meter. The backflow gas heating and throttling device includes a gas inlet pipe, a heat pipe, a guide cone, an outer throttle pipe, an annular cover, a tapered pipe, a gas outlet pipe, a throttle plate I, a throttle plate II, and a heating rib, thereby increasing the natural gas temperature before throttling and further heating the natural gas during throttling to prevent hydrate generation from causing blockage.

Abstract: A display panel compensation method includes: obtaining an initial data voltage value of each pixel in a display panel according to a to-be-displayed image; determining a to-be-compensated region of the display panel according to the initial data voltage value of each pixel in the display panel, where the to-be-compensated region includes a first to-be-compensated region and a second to-be-compensated region that are adjacent to each other in a first direction; and determining a first compensation voltage value of a first pixel in the first to-be-compensated region according to the difference between an initial data voltage value of the first pixel in the first to-be-compensated region and a first target voltage value, and determining a second compensation voltage value of a second pixel in the second to-be-compensated region according to the difference between an initial data voltage value of the second pixel in the second to-be-compensated region and a second target voltage value.

Abstract: Provided are a drive compensation method and system of a display panel and a display device. The drive compensation method includes: determining at least one of the impedance and capacitive reactance variation curve of a first signal line in a column direction and determining the charge rate variation curve of first pixel units in a row direction; determining the compensation coefficients for a respective pixel unit in the column direction and/or the row direction according to the impedance and capacitive reactance variation curve of the first signal line in the column direction and/or the charge rate variation curve of first pixel units in the row direction; and compensating the compensation coefficients for the respective pixel unit in the column direction and/or the row direction to the drive signal of the respective pixel unit to drive the respective pixel unit.

Abstract: The present application discloses a display panel, a display driving method for display panel, and a display apparatus. The display panel includes a plurality of rows of pixel circuits; a gate drive circuit configured to be switched between a first drive mode and a second drive mode, wherein the first drive mode comprises that the gate drive circuit provides gate signals to n rows of the pixel circuits simultaneously, and the second drive mode comprises that the gate drive circuit provides gate signals to m*n rows of the pixel circuits simultaneously, wherein n is a positive integer, and m is an integer greater than or equal to 2.

Abstract: The present application discloses a display panel, a display driving method for display panel, and a display apparatus. The display panel includes a plurality of rows of pixel circuits; a gate drive circuit configured to be switched between a first drive mode and a second drive mode, wherein the first drive mode comprises that the gate drive circuit provides gate signals to n rows of the pixel circuits simultaneously, and the second drive mode comprises that the gate drive circuit provides gate signals to m*n rows of the pixel circuits simultaneously, wherein n is a positive integer, and m is an integer greater than or equal to 2.

Abstract: Provided are a drive compensation method and system of a display panel and a display device. The drive compensation method includes: determining at least one of the impedance and capacitive reactance variation curve of a first signal line in a column direction and determining the charge rate variation curve of first pixel units in a row direction; determining the compensation coefficients for a respective pixel unit in the column direction and/or the row direction according to the impedance and capacitive reactance variation curve of the first signal line in the column direction and/or the charge rate variation curve of first pixel units in the row direction; and compensating the compensation coefficients for the respective pixel unit in the column direction and/or the row direction to the drive signal of the respective pixel unit to drive the respective pixel unit.

Abstract: A semiconductor IC including a supply voltage generator, one or more first circuit blocks, and one or more second circuit blocks. The supply voltage generator is configured to generate a first supply voltage and a second supply voltage based on an external supply voltage, and to provide the first supply voltage to a first power bus and the second supply voltage to a second power bus. The first circuit blocks are connected between the first power bus and the second power bus, and the second circuit blocks are connected between the second power bus and ground.

Abstract: A semiconductor IC including a supply voltage generator, one or more first circuit blocks, and one or more second circuit blocks. The supply voltage generator is configured to generate a first supply voltage and a second supply voltage based on an external supply voltage, and to provide the first supply voltage to a first power bus and the second supply voltage to a second power bus. The first circuit blocks are connected between the first power bus and the second power bus, and the second circuit blocks are connected between the second power bus and ground.

Abstract: A PV module frame, includes a module recess, a sidewall vertical to the module recess and a bottom portion vertical to the sidewall. The bottom portion extends from the bottom of the sidewall along the opposite direction of the recess of the module recess. A PV module having the PV module frame and a PV module installation system for installing the PV module onto a support, wherein the bottom portions of the adjacent solar cell assemblies are socket jointed and fixed to at least one installation beam which is fixed to the support. The beneficial effect of the present invention is that: fast installation of a PV module could be realized only by using the improved frame and one installation beam, Which reduces the quantity of the members in an installation system module and makes the installation more efficient, easier and more economical.

Abstract: The present invention discloses a PV module frame, comprising: an module recess, a sidewall vertical to the module recess and a bottom portion vertical to the sidewall. Said bottom portion extends from the bottom of said sidewall along the opposite direction of the recess of said module recess. The present invention also discloses a PV module having said PV module frame and further discloses a PV module installation system for installing said PV module onto a support, wherein the bottom portions of the adjacent solar cell assemblies are socket jointed and fixed to at least one installation beam which is fixed to said support. The beneficial effect of the present invention is that: fast installation of a PV module could be realized only by using the improved frame and one installation beam, which reduces the quantity of the members in an installation system module and makes the installation more efficient, easier and more economical.