Abstract: Disclosed herein are lipid nanoparticles comprising 1,2-dioleoyl-3-trimethylammonium propane (DOTAP), 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC), cholesterol, and 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[amino(polyethylene glycol)-2000](DSPE-PEG2000), compositions including such lipid nanoparticles, and methods of treatment using such lipid nanoparticles and compositions.

Abstract: Provided in the present disclosure are a communication method and device. The method comprises: sending discontinuous reception (DRX)-related information of a second network device to a first network device; receiving a time interval configured by the first network device, wherein the time interval is obtained by the first network device according to the DRX-related information of the second network device; and carrying out an operation for the second network device according to the time interval, wherein the first network device serves a first type network of a first operator, and the second network device serves a first type network of a second operator.

Abstract: A vehicle includes a traction battery having a plurality of battery cells and a balance circuit configured to selectively discharge one or more of the battery cells. A controller is programmed to estimate charge capacities of the battery cells and determine a standard deviation of the estimated capacities. The controller is further programmed to determine a skewness of the estimated capacities. The controller is also programmed to, in response to the skewness exceeding a first threshold, command the balance circuit to discharge one or more of the battery cells when a state of charge (SOC) of the traction battery is less than a second threshold, and, in response to the skewness being less than the first threshold, command the balance circuit to discharge one or more of the battery cells when the SOC of the traction battery is greater than the second threshold.

Abstract: A vehicle includes a contactor electrically between a charge port and a traction battery, and a controller configured to maintain the contactor in a closed position until a charge current estimate, derived from vehicle load data without sensing current through the contactor or receiving data from a charge station regarding the current, is less than a predetermined threshold. The maintenance of the contactor position is responsive to a charge disconnect request.

Abstract: A computer-implemented method for performing authentication includes: determining, by a database server storing data in a blockchain ledger, a target ledger segment on which time service authentication is to be performed; generating a Merkle tree corresponding to the target ledger segment; determining a root hash of the Merkle tree, the root hash of the Merkle tree being based on a block hash of each data block in a set of one or more data blocks; executing a predetermined time capture process in a trusted execution environment to obtain a trusted time from an interface provided by a trusted time service organization; generating a digital signature for the trusted time and the root hash in the trusted execution environment; and generating a time service certificate including the trusted time, the root hash, and the digital signature.

Abstract: This disclosure relates to blockchain-type storage of receipt data. In one aspect, a method includes obtaining a to-be-stored data record including a first service attribute. Execution information of the to-be-stored data record is determined. A previous data record is obtained from a blockchain-type ledger. The previous data record includes a second service attribute that is the same as the first service attribute. Each data block in the blockchain-type ledger includes a block header and a block body. A hash value of the previous data record is determined. A receipt record is generated. The receipt record includes the hash value of the previous data record and the execution information of the to-be-stored data record. The to-be-stored data record and the receipt record are written into a same block body in the blockchain-type ledger.

Abstract: Embodiments of the present disclosure relate to generation of natural language expression variants. In an embodiment, a computer-implemented method is disclosed. According to the method, a structured expression is determined for a source expression in a natural language by replacing a source key entity in the source expression with a predetermined symbol. At least one template structured expression is selected from a set of template structured expressions based on respective similarities between the structured expression and respective template structured expressions in the set. Each of the set of template structured expressions comprises the predetermined symbol to represent a key entity. At least one variant expression is generated for the source expression by replacing the predetermined symbol in the at least one selected template structured expression with the source key entity. In other embodiments, a system and a computer program product are disclosed.

Abstract: Systems and methods for detecting a gas kick within a wellbore are provided. The system includes a rotatable tool including one or more acceleration sensors and/or oscillators. The method includes rotating the rotatable tool in contact with fluid inside the wellbore and detecting changes in rotational velocity of the rotatable tool to detect the gas kick. In other aspects, the method includes detecting a change in density of the fluid within the wellbore by at least one or more pressure waves to determine the gas kick within the wellbore.

Abstract: This disclosure relates to blockchain-type storage of receipt data. In one aspect, a method includes obtaining a to-be-stored data record including a first service attribute. Execution information of the to-be-stored data record is determined. A previous data record is obtained from a blockchain-type ledger. The previous data record includes a second service attribute that is the same as the first service attribute. Each data block in the blockchain-type ledger includes a block header and a block body. A hash value of the previous data record is determined. A receipt record is generated. The receipt record includes the hash value of the previous data record and the execution information of the to-be-stored data record. The to-be-stored data record and the receipt record are written into a same block body in the blockchain-type ledger.

Abstract: A method comprising determining a property of a first section of drill pipe that is to connect a first agitator to a second agitator in a bottom hole assembly of a drill string, determining a distance between the first agitator and the second agitator based, at least in part, on the property of the lirst section of drill pipe, positioning the first agitator in the bottom hole assembly of the drill string, and positioning the second agitator in the bottom hole assembly of the drill string relative to the lirst agitator based, at least in part, on the distance.

Abstract: A method, computer system, and computer program product for selecting a next-hop component for a packet from a group in a service function chain (SFC) enabled domain. The method may include receiving a request for selecting a next-hop component for a packet from a group in an SFC-enabled domain. The method may include collecting a delay measurement for packets of each of the plurality of components from a measurement agent in the SFC-enabled domain. The method may include selecting at least one component from the plurality of components based on the delay measurement for packets of each of the plurality of components. The method may include returning an indicator indicating at least one component.

Abstract: A collision avoidance system may validate, reject, or replace a trajectory generated to control a vehicle. The collision avoidance system may comprise a secondary perception component that may receive sensor data, receive and/or determine a corridor associated with operation of a vehicle, classify a portion of the sensor data associated with the corridor as either ground or an object, determine a position and/or velocity of at least the nearest object, determine a threshold distance associated with the vehicle, and control the vehicle based at least in part on the position and/or velocity of the nearest object and the threshold distance.

Abstract: A method for blockchain-based time stamping for digital signature is disclosed. The method includes two participants: a signer who signs a message, a verifier who verifies the message. In the method, the signer obtains hash values of a certain number of latest confirmed blocks in blockchain, binds these hash values and the message together to be a new message. The signer then generates a signature of the new message and inserts identification data of this signature and the new message into a transaction of blockchain. This method ensures that the generation time of the signature is prior to the generation time of the block which contains the signature and, at the same time, is after the generation time of the blocks whose hash values are included in the signature, which produces an accurate time interval for the digital signature.

Abstract: A power distribution system includes a contactor between a traction battery and a high-voltage bus. The system includes a controller configured to generate a contactor status to determine if the contactor is operating as commanded. The controller identifies a contactor as closed responsive to a rate of change of a voltage difference between a traction battery voltage and a high-voltage bus voltage over each of a predetermined number of time intervals being within a predetermined range.

Abstract: A vehicle includes an electric machine, a battery, and a controller. The electric machine is configured to deliver power to wheels to drive the vehicle. The battery has an array of cells that are configured to deliver electrical power to the electric machine. The controller is programmed to, in response to a charge imbalance within the array of cells, simultaneously discharge a number of cells within the array based on a temperature of the controller.

Abstract: Methods and apparatuses for managing resume information and recruitment information are provided. A method for managing resume information may include playing multimedia introduction information included in an resume of an applicant; and displaying a detailed content of the resume in response to a confirmation trigger implemented by the applicant on the multimedia introduction information.

Abstract: Implementations of this specification provide service identifier-based data indexing. An example method performed by a data indexing apparatus of a centralized database service provider that stores data by using a blockchain-type ledger includes obtaining a service identifier and a service label of a data record, the service identifier uniquely identifying a service attribute of the data record, and the service label representing a type of the data record; determining location information of the data record in the blockchain-type ledger, the location information including a block height of a data block that includes the data record, and a positional offset of the data record in the data block that includes the data record; establishing a mapping relationship among the service identifier, the service label, and the location information; and writing the mapping relationship into an index for which a primary key is the service identifier.

Abstract: Described herein are compounds of Formula I, wherein R1, R2, and R3 are defined herein, their use as branched-chain alpha keto acid dehydrogenase kinase inhibitors, pharmaceutical compositions containing such inhibitors and the use of such inhibitors to treat, for example, diabetes, NASH and heart failure.

Abstract: Implementations of this specification provide signature verification methods and apparatuses for a blockchain ledger. An example method includes receiving by a server, a signature verification instruction that comprises a verification object parameter and a hash value. The verification object parameter includes a third-party parameter, a platform parameter, or a time service certificate parameter, the verification object parameter indicates a type of a to-be-verified object, and the server is configured to store data by using the blockchain ledger. The server obtains the to-be-verified object based on the verification object parameter and the hash value. The type of the to-be-verified object includes a third-party digital signature, a server digital signature, or a time service certificate. The server sends the to-be-verified object to a client for verification by the client.

Abstract: An electrified vehicle includes a global positioning system (GPS) module. The vehicle further includes a controller programmed to learn a source identification for a charging error during charge events. The controller receives location data corresponding to each charging error and utilizes the location data to determine the source identification. The source identification may be indicative of the vehicle, an offboard charger, and the operator. Errors that occur consistently at multiple locations may be assigned a higher probability of being identified as vehicle-related errors.