Abstract: The disclosure discloses a polycrystalline diamond composite sheet having a continuous gradient transition layer and a 3D printing preparation method thereof. The polycrystalline diamond composite sheet consists of a polycrystalline diamond layer, a continuous gradient transition layer, and a cemented carbide substrate from top to bottom, in which the continuous gradient transition layer consists of diamond and cemented carbide. Along a direction from the cemented carbide substrate to the polycrystalline diamond layer, a content of the cemented carbide in the continuous gradient transition layer decreases from 100% to 0, and a content of the diamond increases from 0 to 100%. By designing and combining the continuous gradient transition layer with 3D printing technology, the disclosure realizes a continuous change in the two materials of diamond and cemented carbide, thereby eliminating the sudden change interface of the materials inside the diamond composite sheet.

Abstract: The present application discloses a large-area dual-frequency heterojunction solar cell thin film deposition method and apparatus, where the large-area dual-frequency heterojunction solar cell thin film deposition method at least includes: placing a silicon wafer to be deposited in a process chamber of a flat-plate coupled chemical vapor deposition; introducing a process gas into the process chamber, the process gas including at least one of SiH4, H2, CO2, NO2, N2, O2, O3, Ar, and NH3; generating a plasma by exciting and dissociating of the process gas through a radio frequency power supply system fed into the process chamber; and transferring the plasma to the surface of the silicon wafer to be deposited under the electric field to form a silicon-based thin film or perform plasma interface treatment on the deposited silicon-based thin film.

Abstract: Disclosed in the embodiments of the present disclosure are a video generation method, an apparatus, an electronic device and a storage medium. The method comprises: during an image editing process of subjecting an initial image to a series of image editing operations to obtain a target image, acquiring initial key frames, the initial key frames being intermediate images between the initial image and the target image during the image editing process, the different initial key frames being intermediate images generated when different image editing operations of the series of image editing operations are triggered during the image editing process, and the intermediate images showing editing effects corresponding to the image editing operations; and generating a target video according to the initial key frames so as to record the image editing process of the target image. The present disclosure can be used for recording an image editing process.

Abstract: Provided is a method including determining a combined plurality of accounts, determining, for each account of the combined plurality of accounts, aggregate transaction data associated with a plurality of transactions involving the account; determining a first cohort level group including a group of exposed accounts and controls accounts; determining a first segment level group of accounts from the first cohort level group of accounts; generating a prediction model based on a plurality of control accounts that are included in the first segment level group of accounts; identifying a first exposed account of a plurality of exposed accounts; determining a first control account of the plurality of control accounts that corresponds to a first exposed account using the prediction model; and outputting a report comprising data associated with the first control account that corresponds to the first exposed account. Systems and computer program products are also provided.

Abstract: Provided is a method including determining a combined plurality of accounts, determining, for each account of the combined plurality of accounts, aggregate transaction data associated with a plurality of transactions involving the account; determining a first cohort level group including a group of exposed accounts and controls accounts; determining a first segment level group of accounts from the first cohort level group of accounts; generating a prediction model based on a plurality of control accounts that are included in the first segment level group of accounts; identifying a first exposed account of a plurality of exposed accounts; determining a first control account of the plurality of control accounts that corresponds to a first exposed account using the prediction model; and outputting a report comprising data associated with the first control account that corresponds to the first exposed account. Systems and computer program products are also provided.

Abstract: Provided is a method including determining a combined plurality of accounts, determining, for each account of the combined plurality of accounts, aggregate transaction data associated with a plurality of transactions involving the account; determining a first cohort level group including a group of exposed accounts and controls accounts; determining a first segment level group of accounts from the first cohort level group of accounts; generating a prediction model based on a plurality of control accounts that are included in the first segment level group of accounts; identifying a first exposed account of a plurality of exposed accounts; determining a first control account of the plurality of control accounts that corresponds to a first exposed account using the prediction model; and outputting a report comprising data associated with the first control account that corresponds to the first exposed account. Systems and computer program products are also provided.

Abstract: Embodiments of a method and an apparatus for providing a prompt of a function parameter in a spreadsheet and of an electronic device are provided. The method includes: obtaining a first function parameter of a function in the spreadsheet; determining whether the first function parameter is associated with a dynamic constraint rule, wherein the dynamic constraint rule is that there is a dynamic constraint that associates the first function parameter with another function parameters in a function to which the first function parameter belongs; if the first function parameter is associated with a dynamic constraint rule, calculating a value range of the first function parameter based on the dynamic constraint rule; and presenting a prompt for the first function parameter based on the value range. By applying the embodiments provided in the present application, a user can input correct content for a parameter quickly and accurately.

Abstract: Provided is a method including determining a combined plurality of accounts, determining, for each account of the combined plurality of accounts, aggregate transaction data associated with a plurality of transactions involving the account; determining a first cohort level group including a group of exposed accounts and controls accounts; determining a first segment level group of accounts from the first cohort level group of accounts; generating a prediction model based on a plurality of control accounts that are included in the first segment level group of accounts; identifying a first exposed account of a plurality of exposed accounts; determining a first control account of the plurality of control accounts that corresponds to a first exposed account using the prediction model; and outputting a report comprising data associated with the first control account that corresponds to the first exposed account. Systems and computer program products are also provided.

Abstract: Embodiments of a method and an apparatus for providing a prompt of a function parameter in a spreadsheet and of an electronic device are provided. The method includes: obtaining a first function parameter of a function in the spreadsheet; determining whether the first function parameter is associated with a dynamic constraint rule, wherein the dynamic constraint rule is that there is a dynamic constraint that associates the first function parameter with another function parameters in a function to which the first function parameter belongs; if the first function parameter is associated with a dynamic constraint rule, calculating a value range of the first function parameter based on the dynamic constraint rule; and presenting a prompt for the first function parameter based on the value range. By applying the embodiments provided in the present application, a user can input correct content for a parameter quickly and accurately.

Abstract: Techniques related to compositing video content are discussed. Such techniques may include generating transparency data for a surface of first video content and storing it in a stream out buffer, accessing the transparency data via the stream out buffer when there is no change to the surface of the first video content, and compositing the first video content with second video content based on the accessed transparency data.

Abstract: Techniques related to compositing video content are discussed. Such techniques may include generating transparency data for a surface of first video content and storing it in a stream out buffer, accessing the transparency data via the stream out buffer when there is no change to the surface of the first video content, and compositing the first video content with second video content based on the accessed transparency data.

Abstract: The present invention provides a shared presenting method and system, in said shared presenting method: an initiator sets up a shared presentation room and sends invitation information of said shared presentation room via a network; a receiver that receives said invitation information joins in said shared presentation room through establishing a network connection; said initiator sends a presenting file and a playing control instruction for said presenting file to said receiver that has joined in said shared presentation room; said receiver receives said presenting file and said playing control instruction, and locally executes a playing control operation to said presenting file in accordance with said playing control instruction. Said mobile device comprises said shared presenting system. The shared presenting method and system provided by the present invention can present a presentation file among a plurality of mobile devices simultaneously.

Abstract: The present invention provides a shared presenting method and system, in said shared presenting method: an initiator sets up a shared presentation room and sends invitation information of said shared presentation room via a network; a receiver that receives said invitation information joins in said shared presentation room through establishing a network connection; said initiator sends a presenting file and a playing control instruction for said presenting file to said receiver that has joined in said shared presentation room; said receiver receives said presenting file and said playing control instruction, and locally executes a playing control operation to said presenting file in accordance with said playing control instruction. Said mobile device comprises said shared presenting system. The shared presenting method and system provided by the present invention can present a presentation file among a plurality of mobile devices simultaneously.

Abstract: A method for manufacturing piston with enclosed inner oil cooling chamber including 1) forging a blank of a piston body member and a blank of a piston ring member separately; 2) thermally treating the blank of the piston body member and the blank of the piston ring member separately; 3) sand blasting the blank of the piston body member and the blank of the piston ring member to form the inner cavity, the inner oil cooling chamber, and the laser welding surface; 4) welding the piston body member and the piston ring member together through laser welding procedure; 5) manufacturing the piston ring shaped groove, combustion chamber, ring groove, pinhole, outer circle, and the oil inlet/outlet holes, separately; and 6) phosphating or graphitizing the piston surface.

Abstract: The present invention discloses a system for controlling the display size of a formula bar in a spreadsheet. The system for controlling the display size of the formula bar and a formula bar module are parallel in a main window module of a spreadsheet application, and the system includes a sub-system I which controls the display state of the formula bar and a sub-system II which controls the display range of the specific content in the formula bar. The system continuously executes real-time detecting and measuring of the aforementioned formula bar module while the application is running, and acquires data on the size of the formula bar from the aforementioned formula bar module. If the acquired data exceed the prescribed range, then it issues a command to the aforementioned formula bar module requesting a change in the size of the formula bar. In the mean time, it issues a command to the aforementioned sub-system I and the aforementioned sub-system II.

Abstract: A laser-welded single-piece forged-steel piston with an enclosed inner oil cooling chamber having the advantages of simple structure and easy manufacturing process, and capable of satisfying the requirement of engines for high power, high rigidity, and low discharge development, and its manufacturing process. The laser-welded single-piece forged-steel piston of the invention comprises a piston body member and a piston ring member, wherein the piston body member is welded together with the piston ring member through laser welding procedure, an enclosed inner oil cooling chamber is formed between the piston body member and the piston ring member, and is connected with the piston inner cavity by means of at least two oil inlet/outlet holes, and a pin hole is opened at the lower portion of the piston body member.

Abstract: The present invention discloses a system for controlling the display size of a formula bar in a spreadsheet. Application of this system will make operation of the spreadsheet more convenient. The system for controlling the display size of the formula bar and a formula bar module are parallel in a main window module of a spreadsheet application, and the system includes a sub-system I which controls the display state of the formula bar and a sub-system II which controls the display range of the specific content in the formula bar. The system continuously executes real-time detecting and measuring of the aforementioned formula bar module while the application is running, and acquires data on the size of the formula bar from the aforementioned formula bar module. If the acquired data exceed the prescribed range, then it issues a command to the aforementioned formula bar module requesting a change in the size of the formula bar.

Abstract: The present invention relates to decoking of a residual oil delayed coke reactor. When decoking, the roller of the flexible pipe winch is rotated to cause the flexible pipe to vertically ascend or descend in the coker wherein the high pressure water rotates the turbine blades of the turbine-reductor which brings the drilling and cutting combination unit into rotation so as to drill a through hole in the coke accumulation and then conduct the decoking operation. The drilling and cutting combination unit is equipped with a pressure control unit so that switchover of the drilling and cutting operations can be automatically performed. The present invention eliminates the use of a derrick, resulting in significant savings in time, quantity of steel, capital investment, and equipment required to facilitate the decoking process and enhance decoking efficiency.

Abstract: The present invention relates to decoking of a residual oil delayed coke reactor. When decoking, the roller of the flexible pipe winch is rotated to cause the flexible pipe to vertically ascend or descend in the coker wherein the high pressure water rotates the turbine blades of the turbine-reductor which brings the drilling and cutting combination unit into rotation so as to drill a through hole in the coke accumulation and then conduct the decoking operation. The drilling and cutting combination unit is equipped with a pressure control unit so that switchover of the drilling and cutting operations can be automatically performed. The present invention eliminates the use of a derrick, resulting in significant savings in time, quantity of steel, capital investment, and equipment required to facilitate the decoking process and enhance decoking efficiency.