Abstract: The present disclosure provides a conversion method and apparatus for a multimedia editing file, a device, and a storage medium, in the method, the multimedia material and the editing operation of the multimedia editing file are indicated by different indication information, and the indication information is encapsulated into a data format that can be supported by respective applications themselves, without the need to convert the multimedia material and the editing operation with a large amount of data, and the file format conversion is implemented, through a method of converting the indication information, in different applications, the conversion method is easy to implement and has high conversion efficiency, and also supports the conversion of the multimedia editing file that occupies large memory in different applications, which improves the reliability and universality of multimedia file conversion.

Abstract: A concrete structure effective prestress estimation and evaluation characteristic value calculation method which includes calculating effective prestress probability distribution of a concrete structure prestress rebar, establishing a Gaussian mixture model of effective prestress of the concrete structure, carrying out normalization processing and normal significance judgment on the Gaussian mixture model, sampling and estimating the effective prestress probability distribution of the structure with normal distribution in theoretical distribution, calculating effective prestress evaluation characteristic values of the components under the normal distribution condition, grouping processing and normal significance judging of the Gaussian mixture model, sampling and estimating the structural effective prestress probability distribution of the N-sub-distribution Gaussian mixture model by theoretical distribution, calculating effective prestress evaluation characteristic values of the components under the conditio

Abstract: A ribosome extraction method is provided. In the ribosome extraction method, cucumber cubes and a phosphate buffer saline (PBS) solution are mixed and slurried, and an 80S cucumber ribosome is prepared by first centrifugation, second centrifugation, third centrifugation, ultracentrifugation, and fourth centrifugation. The extracted 80S cucumber ribosome is relatively complete and high in yield, and about 2400 OD260 of 80S ribosome can be extracted from 500 g of cucumbers, so that the problems of difficult extraction and low yield of the ribosome are solved, and a foundation is laid for protein structure determination and function analysis.

Abstract: A concrete structure effective prestress estimation and evaluation characteristic value calculation method which includes calculating effective prestress probability distribution of a concrete structure prestress rebar, establishing a Gaussian mixture model of effective prestress of the concrete structure, carrying out normalization processing and normal significance judgment on the Gaussian mixture model, sampling and estimating the effective prestress probability distribution of the structure with normal distribution in theoretical distribution, calculating effective prestress evaluation characteristic values of the components under the normal distribution condition, grouping processing and normal significance judging of the Gaussian mixture model, sampling and estimating the structural effective prestress probability distribution of the N-sub-distribution Gaussian mixture model by theoretical distribution, calculating effective prestress evaluation characteristic values of the components under the conditio

Abstract: The present invention discloses a method, equipment, and readable storage medium for tracking and evaluating the life cycle EUR of horizontal wells, and relates to the field of oil and gas development technology. The present invention divides the life cycle stages of fractured horizontal wells in unconventional oil and gas reservoirs, provides corresponding EUR evaluation steps for different life cycle stages based on the production performance characteristics of fractured horizontal wells in unconventional oil and gas reservoirs in the drilling and fracturing stage, extraction and testing stage, rapid production decline stage, and low pressure and small volume production stage, and establishes the EUR tracking and evaluation process of fractured horizontal wells in unconventional oil and gas reservoirs throughout their life cycle from drilling to abandonment.

Abstract: A tool includes a housing, a drive assembly including an output shaft extending from the housing such that a tool element for performing work on a workpiece is attachable to the output shaft, and a bushing disposed within the housing. The bushing rotatably supports the output shaft. The bushing is impregnated with lubricant such that the bushing is self-lubricating, and the bushing has an impregnation ratio between about 5% and about 25%.

Abstract: A full-automatic preparation method of a cast-off cell smear includes the following steps: S1: pretreatment of a cast-off cell: automatically pretreating the cast-off cell to be prepared to remove interfering substances; S2: automatically transferring a pretreated cast-off cell to a cyclic settling module to allow constant-temperature settling, and staining and moisturizing the pretreated cast-off cell; and S3: subjecting a moisturized cast-off cell to automatic liquid sealing. The full-automatic preparation method of the cast-off cell smear realizes the automation of smear preparation, staining, and sealing, and also realizes the unattended high-throughput output and the high-quality smear preparation and sealing.

Abstract: An integrated constant-temperature fully-automatic cell smear preparation device includes a rotary settling disc, where the rotary settling disc includes a settling disc base and a turntable body connected to a settling disc body through a fixed shaft; a glass slide addition mechanism arranged adjacent to a glass slide inlet position of the rotary settling disc; a cleaning and sample addition integrated device, where the cleaning and sample addition integrated device is arranged on a side of the rotary settling disc, the cleaning and sample addition integrated device includes a cleaning assembly and a sample addition assembly, and the cleaning assembly and the sample addition assembly add fluid to one or more different settling cups simultaneously as the turntable body rotates intermittently; and a glass slide discharging mechanism arranged adjacent to a glass slide outlet position of the rotary settling disc.

Abstract: A method for coupling hydraulic fracture network extension and production performance of a horizontal well in an unconventional oil and gas reservoir includes: establishing a complex hydraulic fracture network model of a fractured horizontal well in an unconventional oil and gas reservoir based on a fracture extension theory; constructing three-dimensional three-phase mathematical models of seepage for the fractured horizontal well based on an embedded discrete fracture model; and constructing a fully implicit numerical calculation model by a finite difference method through three-dimensional orthogonal grids, and solving iteratively, thereby accurately predicting a production performance characteristic of the fractured horizontal well in the unconventional oil and gas reservoir.

Abstract: A damage identification method based on cable force tests of a cable system and test error self-adaptive analysis is proposed to measure cable forces in prestressed steel structures and find out possible damage positions of the cable system. The method includes placing a laser velocimeter; measuring the vibration speed history data of the measuring point P on the cable by the laser velocimeter; calculating the cable force; calculating all the cable forces of the cable system through the same procedure; analyzing error between cables and finding out the possible damage of the cable or of the tie rod connected to the cable. The dynamic response characteristics of both in-plane and out-of-plane of a cable can be obtained through the method of the present invention. The self-verified more accurate results can be obtained, and the damage in a cable system can be determined according to error self-adaptive analysis.

Abstract: A damage identification method based on cable force tests of a cable system and test error self-adaptive analysis is proposed to measure cable forces in prestressed steel structures and find out possible damage positions of the cable system. The method includes placing a laser velocimeter; measuring the vibration speed history data of the measuring point P on the cable by the laser velocimeter; calculating the cable force; calculating all the cable forces of the cable system through the same procedure; analyzing error between cables and finding out the possible damage of the cable or of the tie rod connected to the cable. The dynamic response characteristics of both in-plane and out-of-plane of a cable can be obtained through the method of the present invention. The self-verified more accurate results can be obtained, and the damage in a cable system can be determined according to error self-adaptive analysis.

Abstract: Methods, systems, apparatuses, and computer-readable storage media for interactions based on in-vehicle digital persons are provided. In one aspect, a method includes: acquiring a video stream of a person in a vehicle captured by a vehicle-mounted camera, processing at least one frame of image included in the video stream to obtain one or more task processing results based on at least one predetermined task, and performing, according to the one or more task processing results, at least one of displaying a digital person on a vehicle-mounted display device or controlling a digital person displayed on a vehicle-mounted display device to output interaction feedback information.

Abstract: A leaf bruising machine and method for tea inluding frame, bruising basket, rotating door, locking assembly, and drive control mechanism. Bruising basket is rotatably disposed on frame, and has feed, discharge opening, and accommodating cavity. Rotating door is arranged at bruising basket outer side. Position limiting hole is provided on rotating door. Bruising basket rotates relative to rotating door. Rotating door blocks or opens feed and discharge opening. Locking assembly having spring-loaded ball latch and electromagnetic switch. Drive control mechanism comprises rotation drive device and controller. Rotation drive device is connected to bruising basket to drive bruising basket rotation. Leaf bruising machine bruises tea leaves. When feed and discharge opening is opened or sealed, bruising basket and rotating door is locked by electromagnetic switch and spring-loaded ball latch cooperation.

Abstract: A tool includes a housing, a drive assembly including an output shaft extending from the housing such that a tool element for performing work on a workpiece is attachable to the output shaft, and a bushing disposed within the housing. The bushing rotatably supports the output shaft. The bushing is impregnated with lubricant such that the bushing is self-lubricating, and the bushing has an impregnation ratio between about 5% and about 25%.

Abstract: A power tool includes a housing having a motor housing portion and a front casing coupled to the motor housing portion. The power tool also includes an electric motor positioned within the motor housing portion, a drive assembly having an output shaft to which a tool element for performing work on a workpiece is attachable, and a powdered metal bushing disposed within the front casing that rotatably supports the output shaft.

Abstract: There is provided a method of performing load balancing in a communications network comprising a plurality of traffic servers. The method comprises: in a load balancer, receiving a connection request in a communications protocol from a client device and in the load balancer, selecting a traffic server for the requested connection. An identity of the selected traffic server is encoded into a protocol message header. The protocol message header is returned containing the encoded identity of the selected traffic server to the client device. The protocol message header containing the encoded identity of the selected traffic server is included in communications protocol packets sent from the client device to the load balancer. The load balancer, forwards communications protocol packets sent from the client device to the selected traffic server.

Abstract: A power tool includes a housing having a motor housing portion and a front casing coupled to the motor housing portion. The power tool also includes an electric motor positioned within the motor housing portion, a drive assembly having an output shaft to which a tool element for performing work on a workpiece is attachable, and a powdered metal bushing disposed within the front casing that rotatably supports the output shaft.

Abstract: A filter connector includes an insulative housing including a docking head and a base member, and an electrical module including a circuit board defining a first lateral side and a second lateral side, a plurality of input terminals mounted in the docking head and bonded to the first lateral side of the circuit board and a plurality of output terminals mounted in the base member and bonded to the second lateral side of the circuit board. Thus, the circuit board is vertically secured between the input terminals, ensuring that the filter connector is small in size, simple in structure, and easy to manufacture, and has a filtering function, thereby greatly improving the electric perform.