Abstract: A submicron-scale microfluidic experimental apparatus under high-temperature and high-pressure conditions and a method of using the apparatus are provided.

Abstract: Compositions and methods for treating a premature translation termination codon N1N2N3 (PTC)-related disease by nonsense suppression in a subject is disclosed. The method comprises the steps of: a) modifying a PTC in an mRNA in a cell of the subject by converting a uridine (U) residue in the PTC into a pseudouridine (?) to create a modified mRNA, wherein the PTC results in the PTC-related disease, wherein the uridine is at position 1 (N1) in the PTC; b) providing a modified tRNA in the cell, wherein the modified tRNA comprises a modified uridine at position N36 of an anticodon sequence (N34N35N36); wherein the modified uridine in the modified tRNA is capable of paring with the pseudouridine (?) in the modified mRNA to attach an amino acid to the translation of the modified mRNA and produce a full length translation product from the modified mRNA. Also disclosed is a method for changing coding specificity using ?-? pair between tRNA and mRNA.

Abstract: A positive electrode includes a positive electrode current collector. The positive electrode includes a lithium supplement layer and a positive electrode material layer that are stacked on at least one side of the positive electrode current collector. The lithium supplement layer includes a first positive electrode lithium supplement agent. The positive electrode material layer includes a positive electrode active material and a second positive electrode lithium supplement agent. An initial coulombic efficiency of the first positive electrode lithium supplement agent is less than 30%. The second positive electrode lithium supplement agent is configured to generate gas when the second positive electrode lithium supplement agent is decomposed.

Abstract: A positive electrode material includes a first lithium manganese iron phosphate material in an aggregate form, a second and third lithium manganese iron phosphate materials in an aggregate and/or single-crystal-like form, and a fourth and fifth lithium manganese iron phosphate materials in a single-crystal-like form. A particle quantity ratio of the first to fifth lithium manganese iron phosphate materials is (0.8 to 1.2):(0.8 to 1.2):(1.6 to 2.4):(6.4 to 9.6):(6.4 to 9.6), and particle size D50 relationships satisfy: D505<D504<D503<D502<D501, D502=aD501, D503=bD501, D504=cD501, D505=dD501, and 5 ?m?D501?15 ?m, where 0.35?a?0.5, 0.2?b?0.27, 0.17?c?0.18, and 0.15?d?0.16.

Abstract: This specification discloses database service execution methods and apparatuses. An object deletion request can be received, and a to-be-deleted object can be determined. However, the to-be-deleted object is not immediately deleted, but an operation permission for the to-be-deleted object is modified, and a user is prohibited from accessing the to-be-deleted object. When an object restoration request that carries an object identifier is received, a to-be-deleted object corresponding to the object identifier is determined from each to-be-deleted object whose operation permission has been modified; and an operation permission for the to-be-deleted object corresponding to the object identifier is modified, and the user is allowed to access the to-be-deleted object corresponding to the object identifier.

Abstract: The embodiments of the present disclosure provide an interface display method and apparatus, a media content posting method and apparatus, and a media content presentation method and apparatus. The interface display method includes: displaying an entry interface, the entry interface including a topic group interface trigger control; in response to a trigger operation for the topic group interface trigger control, displaying a topic presentation page of a topic group corresponding to the topic group interface trigger control; and presenting at least one piece of media content on the topic presentation page, the at least one piece of media content including media content posted by a group member joining in the topic group, and media content posted by an out-of-group member without joining in the topic group.

Abstract: Disclosed are a traction machine and a traction machine system applying the same. The traction machine comprises a permanent magnet synchronous motor, a brake, a reduction gearbox and a traction sheave, wherein a motor shaft of the motor is mechanically connected to an input shaft end of the reduction gearbox, the brake acts on the input shaft end of the reduction gearbox, and an output shaft end of the reduction gearbox is connected to the traction sheave, wherein the traction machine further comprises a motor controller, which is mounted at one end of the permanent magnet synchronous motor, a first water cooling channel is disposed in a housing of the motor controller, a second water cooling channel is disposed in a casing of the permanent magnet synchronous motor, and the first water cooling channel is in communication with the second water cooling channel.

Abstract: Optimal degree of parallelism (DOP) can improve query execution performance. An execution plan to execute the query may be generated, the execution plan comprising a plurality of operators and links. The execution plan may be decomposed into a plurality of sequences of connected operators of the plurality of operators. For each sequence, a set of input values may be determined, and a per-sequence optimal DOP value and a per-sequence minimum DOP value may be generated based on the set of input values for the respective sequence.

Abstract: Provided is a lithium-ion battery, including a positive electrode plate, a separator, and a negative electrode plate. The separator is arranged between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a positive electrode current collector and a positive electrode active layer laminated in sequence. A positive electrode active material in the positive electrode active layer includes lithium manganese iron phosphate and a ternary material. The negative electrode plate includes a negative electrode current collector and a negative electrode active layer laminated in sequence. The negative electrode active layer includes a composite layer and a lithium replenishing layer. A negative electrode active material in the composite layer includes a carbon material and SiOx. An areal density of lithium in the lithium replenishing layer is m2=a*M1*m1*?*(1??)/M2.

Abstract: Provided are an electrode plate and a lithium-ion battery, the electrode plate includes a current collector layer, a semiconductor layer and an alkali metal replenishing layer. The semiconductor layer is disposed on at least one surface of the current collector layer. The alkali metal replenishing layer is a lithium-replenishing agent layer or a sodium-replenishing agent layer. The alkali metal replenishing layer is arranged on a side of the semiconductor layer far away from the current collector layer.

Abstract: A shake correction control device includes a processor that selects mechanical correction of mechanically performing shake correction of a subject image or electronic correction of electronically performing the shake correction of the subject image. The processor performs a switching control from either of the mechanical correction or the electronic correction to the other of the mechanical correction or the electronic correction, and synchronizes shake correction operations of the mechanical correction and the electronic correction during the switching control, and changes an operation ratio of the mechanical correction and the electrical correction during the switching control.

Abstract: The invention relates to the technical field of electric vehicle charging guidance, in particular to a method and apparatus for guiding fast charging demands of electric vehicles, a device, and a medium. The method includes: establishing a dynamic traffic network with real-time updates; constructing a road traffic impedance model and an electric vehicle power consumption model; developing a private vehicle travel behavior model and a ride-hailing vehicle travel behavior model; creating quantitative indicators for user charging satisfaction; proposing charging choice models for different types of electric vehicles; and predicting charging loads at charging stations during various time periods and proposing a dynamic pricing strategy with the goal of minimizing load fluctuations at the charging stations. The distribution of fast charging loads in both time and space is optimized based on the travel patterns of different types of electric vehicles, including private vehicles and ride-hailing vehicles.

Abstract: An imaging apparatus includes a processor, in which the processor is configured to acquire displacement information including an orientation and a magnitude of displacement, and positional information of a target to be moved that is moved for shake correction, and in a case where the displacement information satisfies a predetermined condition, and a position of the target to be moved is not at a predetermined position, determine a correction amount of the target to be moved using a second correction function of which a restoration time of the target to be moved to the predetermined position is shorter than a restoration time of a first correction function, instead of the first correction function.

Abstract: The present disclosure relates to an electrolyte solution for a lithium-ion battery. The electrolyte solution includes an organic solvent, a lithium salt, and an additive. The electrolyte solution provided in the present disclosure includes a 6-membered heterocyclyl carboxylic anhydride additive, and can effectively inhibit gas production and the increase of interface impedance in the battery, improve the high-temperature stability of the battery, and prolong the service life of the battery.

Abstract: A method for synchronizing intelligent electronic units IEDs in a locally restricted network, which has at least two timing units. For a timing unit that has become functional again or has been reconnected to the network, checking whether the network contains a further timing unit in an active grandmaster role. Forcing the first timing unit into its slave state when another timing unit in the grandmaster role has been detected in the locally restricted network, wherein the first timing unit synchronizes with the timing unit in the grandmaster role. Once synchronization is complete, no longer forcing the first timing unit into the slave state. The first timing unit switches to the role of grandmaster timing unit when it is better suited to the grandmaster role, or it remains in its slave state when another timing unit in the network is better suited to the grandmaster role.

Abstract: A battery pack, a vehicle and an energy storage device. The battery pack includes at least one battery sequence. The battery sequence includes a plurality of batteries. At least one of the batteries includes a casing and a core packaged in the casing. A gap exists between two neighboring batteries. A ratio of the gap to the thickness of the battery is c, and c satisfies the following relational expression: (a?b)<c<(a×t), where a represents an expansion rate of the battery; b represents a compression rate of the core; and t represents a ratio in percentage of a thickness of the battery after effective compression to a thickness of the battery before compression.

Abstract: A positive electrode material includes a first lithium manganese iron phosphate material in an aggregate form, a second and third lithium manganese iron phosphate materials in an aggregate and/or single-crystal-like form, and a fourth and fifth lithium manganese iron phosphate materials in a single-crystal-like form. D505<D504<D503<D502<D501, D502=aD501, D503=bD501, D504=cD501, D505=dD501, and 5 ?m?D501?15 ?m. 0.35?a?0.5, 0.2?b?0.27, 0.17?c?0.18, and 0.15?d?0.16. Molar ratios of manganese to iron in the first, the second, the third and the fourth lithium manganese iron phosphate materials increase sequentially, and a molar ratio of manganese to iron in the fifth lithium manganese iron phosphate material is greater than that in the third lithium manganese iron phosphate material.

Abstract: A join decision manager (JDM) generates a data processing pipeline. The data processing pipeline includes at least one join operation associated with build-side row data and probe-side row data. The JDM determines the maximum cardinality associated with the probe-side row data. The JDM determines size of the build-side row data at a decision node of the at least one join operation. The JDM configures execution of the at least one join operation as one of a broadcast join or a hash-hash join based on the size of the build-side row data and the maximum cardinality.

Abstract: A plan execution method, apparatus, and system for a distributed database are provided. The plan execution method is performed by a first execution thread on a plan execution node. Feedback data returned by a child logical subplan of a current logical subplan is received in parallel with at least one second execution thread scheduled to execute the current logical subplan. Whether the current logical subplan includes an execution operator related to a row number generation operation is determined. In response to that the current logical subplan includes the execution operator related to a row number generation operation, the received data are cached, and a row number start value obtaining request is sent to the scheduling node. Data row numbers are generated for the cached data based on a received row number start value.

Abstract: A plan execution method, apparatus, and system for a distributed database are provided. The plan execution method is performed by a first execution thread on a plan execution node. Feedback data returned by a child logical subplan of a current logical subplan is received in parallel with at least one second execution thread scheduled to execute the current logical subplan. Whether the current logical subplan includes an execution operator related to a row number generation operation is determined. In response to that the current logical subplan includes the execution operator related to a row number generation operation, the received data are cached, and a row number start value obtaining request is sent to the scheduling node. Data row numbers are generated for the cached data based on a received row number start value.