Abstract: The present invention relates to a preparation method for and an application of a chiral spirocyclic phosphine-nitrogen-phosphine tridentate ligand SpiroPNP and an iridium catalyst Ir-SpiroPNP thereof. The chiral spirocyclic phosphine-nitrogen-phosphine tridentate ligand is a compound represented by formula I, or a racemate or optical isomer thereof or a catalytically acceptable salt thereof; and the main structural feature is a phosphine ligand having a chiral spiro indene skeleton and a large sterically hindered substituent. The chiral spirocyclic phosphine-nitrogen-phosphine tridentate ligand can be synthesized into a chiral starting material from a 7-diaryl/alkylphosphino-7?-amino-1,1?-spirodihydroindenyl compound having a spiro ring skeleton. The iridium catalyst of the chiral spirocyclic phosphino-7?-amino-1,1?-spirodihydroindenyl compound having a spiro ring skeleton.

Abstract: A cleaning system includes a cleaning device, a tray, a charging assembly, a body and a floor brush assembly. The floor brush assembly has rollers which rotate around an X-axis, and can rotate at least in the X-axis direction relative to the body. The charging assembly has a male charging end and a female charging end, wherein one of the male charging end and the female charging end is provided on the body, and the other is provided on the tray. Opposite sides of the male charging end have first electrode sheets and the female charging end has corresponding second electrode sheets. The body of the cleaning system, the body rotates such that the location of the first electrode sheets of the male charging end avoid a problem of poor contact with second electrode sheets of the female charging end.

Abstract: Provided are a fluorene-containing triarylamine compound and an organic electroluminescent device thereof, which relate to the technical field of organic electroluminescent materials. The fluorene-containing triarylamine compound has a good hole transporting ability, a proper HOMO energy level, and good film formability and stability. When used in the organic electroluminescent device as a hole transporting material, the fluorene-containing triarylamine compound can balance electrons and holes in the device, improve recombination efficiency of electrons and holes in a light-emitting layer, effectively reduce a drive voltage of the device, improve luminescence efficiency of the device, and prolong a service life of the device and can be applied to fields such as display, lighting, and organic solar cells.

Abstract: An electrode assembly, a battery cell, a battery, and an electrical device are provided. The electrode assembly includes a first electrode plate; the first electrode plate includes a first current collector, a first active material layer, and a second active material layer; the first active material layer and the second active material layer are disposed on two opposite surfaces of the first current collector respectively; and the first active material layer has a first tail end, the second active material layer has a second tail end, the first tail end and the second tail end are misaligned in a winding direction of the electrode assembly, such that a thin area is formed between the first tail end and the second tail end of the first electrode plate.

Abstract: The present disclosure relates to a fast mechanical switch and an operating method, wherein the fast mechanical switch comprises: a closed housing; a vacuum interrupter; an electromagnetic repulsion mechanism disposed below the vacuum interrupter, wherein the electromagnetic repulsion mechanism has: a first repulsion unit electrically connected to a first electrical terminal; a second repulsion unit electrically connected to a second electrical terminal independent of the first electrical terminal and comprising a third repulsion disk located below and spaced apart from the second repulsion disk, wherein the second electrical terminal is constructed to operatively control the third repulsion disk responsive to the first repulsion unit such that the third repulsion disk applies a resistance to the second repulsion disk when the second repulsion disk is moved downwardly for opening and applies an thrust to the second repulsion disk when it is moved upwardly for closing.

Abstract: A method for preparing and bonding a wafer-level chip used in micro light emitting diode (Micro-LED) includes: exposing pixel areas on a complementary metal oxide semiconductor (CMOS) driving substrate; patterning and growing metal electrodes; depositing a silicon dioxide (SiO2) insulation layer; bonding a Micro-LED chip; striping a substrate of the Micro-LED chip; preparing Micro-LED pixels; corroding splashed ITO and a metal on side walls of the Micro-LED pixels; preparing a co-negative electrode in the Micro-LED pixels. The method adopts a wafer bonding, which eliminates needs for alignment during bonding and compensates for the accuracy issue of die-to-die alignment. Before bonding, a metallization and passivation layer protection are applied to the CMOS surface to reduce chemical damage to the pixels and the CMOS. Compared to wafer-to-wafer, it reduces the bonding contact surface area, reduces stress during bonding, and improves bonding yield.

Abstract: A solid state drive management solution is provided, and includes: detecting that a usage status of a first storage space of an SSD meets a preset condition, where the first storage space works in a first mode; and enabling, based on the detection result, the first storage space to work in a second mode to obtain a second storage space, where a quantity of bits that can be stored in a cell in the first storage space is greater than a quantity of bits that can be stored in a cell in the second storage space.

Abstract: A linker, comprising an amino acid unit (RL). The RL comprises -Val-Ala-Q-Gly-Phe-Gly-, wherein Q is a bond, a single amino acid or a dipeptide. By optimizing a polypeptide sequence, the purpose of more effectively releasing small molecule drugs in tumor cells by ADC drugs is achieved. In addition, the present invention further relates to linker drug containing the above-mentioned linker, a conjugate, and the use of the linker drug and the conjugate.

Abstract: The present invention relates to an electronic cigarette set, in particular to an ultrasonic atomizer, comprising an e-liquid guide assembly. In an embodiment, the e-liquid guide assembly comprises an e-liquid guide ceramic, e-liquid guide cotton, and springs located between the e-liquid guide ceramic and the e-liquid guide cotton and abut the e-liquid guide cotton against an atomization piece. Embodiments of the present invention use a combination of an e-liquid guide ceramic and e-liquid guide cotton to guide an e-liquid. Further details are disclosed herein.

Abstract: A method for adjusting a specification parameter of a solid-state drive (SSD) includes that the SSD receives a configuration command through an internal configuration interface, where a current specification parameter of the SSD is a first specification parameter, and the configuration command includes representation information of a second specification parameter; and then the SSD adjusts the specification parameter of the SSD from the first specification parameter to the second specification parameter based on the configuration command.

Abstract: A mask frame support unit includes a case, a protruding body extending below the case, and a station having a flat head disposed above the case. The protruding body includes a tapered region and a cylindrical region. The tapered region includes a first end having a first diameter coupled to the case and comprising a second end having a second diameter opposite the first end. The second diameter is less than the first diameter, and the tapered region is coupled to the cylindrical region at the second end. The case houses a number of components including an upper receiving plate in contact with the station, a lower receiving plate disposed underneath the upper receiving plate, a flat head unit movement support mechanism disposed between the lower receiving plate and the body, and a centering component.

Abstract: A MINI LED driving power supply and a MINI LED television, the MINI LED driving power supply includes a power supply board connecting with a mainboard and a MINI LED screen, the power supply board includes a first conversion module and a second conversion module; the first conversion module outputs power supply voltage to power the mainboard after the first conversion module is turned on, outputs first voltage and second voltage to power the mainboard according to a power-on/off signal output by the mainboard, and outputs first power supply and high-voltage direct current to the second conversion module; the second conversion module converts high-voltage direct current into third voltage and outputs the third voltage to the MINI LED screen according to enable signal output by the mainboard and the first power supply, to light up MINI LED screen.

Abstract: A storage node configuration method includes obtaining service requirement information, where the service requirement information includes a burst access moment, a burst access bandwidth, or burst access duration of a computing node for a storage node; determining target configuration information based on the service requirement information, where the target configuration information is used to configure a peak bandwidth and peak bandwidth duration that are of the storage node; and sending the target configuration information to the storage node.

Abstract: The present disclosure is directed to a showerhead for distributing plasma. The showerhead includes a perforated tile coupled to a support structure. A dielectric window is disposed over the perforated tile. An electrode is coupled to the dielectric window. An inductive coupler is disposed over the dielectric window. At least a portion of the inductive coupler is angled relative to at least a portion of the electrode.

Abstract: Disclosed are a local dimming drive circuit, a local dimming drive method, a local dimming drive system and an electronic equipment. The local dimming drive circuit includes: a dimming control circuit and a constant current drive circuit; the input end of the dimming control circuit is connected to the mainboard, and the output end of the dimming control circuit is connected to the input end of the constant current drive circuit, and the output end of the constant current drive circuit is connected to the backlight panel; the mainboard is configured to provide the first backlight brightness data and the first vertical synchronization signal; the dimming control circuit is configured to obtain the second backlight brightness data according to the first backlight brightness data, and output the second backlight brightness data at the refresh rate of the first vertical synchronization signal.

Abstract: Embodiments of the present disclosure generally relate to methods and apparatus for measuring and controlling local impedances at a substrate support in a plasma processing chamber during processing of a substrate. A substrate support includes a plurality of substrate support pins wherein the radio frequency voltage, current and phase of each of the plurality of substrate support pins are measured and impedances of the support pins are adjusted in real time. Each of the substrate support pins is coupled to an associated adjustable impedance circuit that may be remotely controlled. In one embodiment a variable capacitor is used to adjust the impedance of the impedance circuit coupled to the associated substrate support pin and may be remotely adjusted with a stepper motor.

Abstract: A device for loop closing and breaking of a power distribution grid based on decoupled voltage regulation is provided. The device comprises a voltage-regulation phase shifter, a control system, a voltage acquisition device and a loop closing switch. The voltage acquisition device acquires voltage signals on two sides of the loop closing switch performing a loop closing or breaking operation and transmits the voltage signals to the control system. The control system calculates a compensating voltage amplitude and phase-angle according to the voltage signals, and sends an instruction to the voltage-regulation phase shifter according to the compensating voltage amplitude and phase-angle. The voltage-regulation phase shifter outputs the compensating voltage amplitude and phase-angle according to the instruction from the control system, to compensate for a voltage difference between the two sides of the loop closing switch.

Abstract: Embodiments of the present disclosure generally relate to methods and apparatus for measuring and controlling local impedances at a substrate support in a plasma processing chamber during processing of a substrate. A substrate support includes a plurality of substrate support pins wherein the radio frequency voltage, current and phase of each of the plurality of substrate support pins are measured and impedances of the support pins are adjusted in real time. Each of the substrate support pins is coupled to an associated adjustable impedance circuit that may be remotely controlled. In one embodiment a variable capacitor is used to adjust the impedance of the impedance circuit coupled to the associated substrate support pin and may be remotely adjusted with a stepper motor.

Abstract: A flash device includes user storage space for storing user data and over provisioning space for garbage collection within the flash device. The flash device receives an operation instruction, and then performs an operation on user data stored in the user storage space based on the operation instruction. Further, the flash device identifies a changed size of user data after performing the operation. Based on the changed size of data, a target adjustment parameter is identified. Further, the flash device adjusts the capacity of the over provisioning space according to the target adjustment parameter.

Abstract: A data writing method includes: receiving a write command, where the write command carries a type of to-be-written data; determining, based on the type of to-be-written data, a type of storage area that is in an SSD and into which the to-be-written data is written, where the SSD includes a plurality of types of storage areas; determining, based on the type of storage area, a target storage area into which the to-be-written data is written; and writing the to-be-written data into the target storage area. In embodiments of this application, data processing efficiency can be improved.