Abstract: Novel ionizable lipids, compositions, and methods of using the novel ionizable lipids and compositions are disclosed. Lipid nanoparticle compositions include a novel ionizable lipid as well as additional lipids such as phospholipids, structural lipids, and PEG lipids. Lipid nanoparticle compositions further including biologically active agents such as mRNA or DNA are useful in the delivery of biologically active agents to mammalian cells or organs.

Abstract: A music recommendation method and apparatus are provided, to determine an attention mode of a user in a complex environment by using viewpoint information of the user, thereby more precisely implementing music matching. According to a first aspect, a music recommendation method is provided. The method includes: receiving visual data of a user (S501); obtaining at least one attention unit and attention duration of the at least one attention unit based on the visual data (S502); determining an attention mode of the user based on the attention duration of the at least one attention unit (S503); and determining recommended music information based on the attention mode (S504).

Abstract: A speech signal processing method and a related device thereof are provided. The method may be applied to the audio field and includes: obtaining a user speech signal captured by a sensor; obtaining a corresponding vibration signal when a user generates a speech, where the vibration signal indicates a vibration feature of a body part of the user, and the body part is a part that vibrates correspondingly based on sound-making behavior when the user is making a sound; and obtaining target speech information based on the vibration signal and the user speech signal captured by the sensor. In this application, the vibration signal is used as a basis for speech recognition.

Abstract: A device enabling method and apparatus, and a storage medium relate to: collecting at least two types of biometric feature information of a user; performing identity authentication on the user based on the at least two types of biometric feature information; and if identity authentication succeeds, enabling at least one of a wearable device and a smart device, where the wearable device is communicatively connected to the smart device. This disclosure helps ensure information security of a device.

Abstract: A signal processing apparatus is configured to preprocess a sound wave signal and output a processed audio signal through an electromagnetic wave. The signal processing apparatus includes: a receiving unit, configured to receive at least one sound wave signal; a conversion unit, configured to convert the at least one sound wave signal to at least one audio signal; a positioning unit, configured to determine position information related to the at least one sound wave signal; a processing unit, configured to determine a sending time point of at least one audio signal based on the position information and a first time point, where the first time point is a time point at which the receiving unit receives the at least one sound wave signal; and a sending unit, configured to send the at least one audio signal through the electromagnetic wave.

Abstract: Example data generation methods and apparatuses are provided. One example method includes obtaining, by a data generation apparatus, spatial object information. The data generation apparatus can then generate content information for describing the spatial object. The data generation apparatus can then generate azimuth information based on the spatial object information, where the azimuth information indicates an azimuth of a spatial object relative to the data generation apparatus. The data generation apparatus can then generate, based on the azimuth information and the content information, spatial sound data for playing a spatial sound, where a position of a sound source of the spatial sound corresponds to the azimuth information.

Abstract: A coating slurry with high adhesion and high ionic conductivity, a preparation method thereof, and a lithium battery separator are provided. The coating slurry with the high adhesion and the high ionic conductivity includes: PEAE: 1 to 60 parts; a dispersing agent: 0.01 to 10 parts; a wetting agent: 0.01 to 15 parts; and a solvent: 100 parts. The PEAE can be evenly coated on a basal membrane to form a lithium battery separator, which solves the problem that pure PEAE cannot be directly and evenly coated on a separator. The PEAE is coated on the basal membrane for the first time to prepare the lithium battery separator, which ensures that the lithium battery separator has characteristics of the high adhesion and the high ionic conductivity.

Abstract: A coating slurry with high adhesion and high ionic conductivity, a preparation method thereof, and a lithium battery separator are provided. The coating slurry with the high adhesion and the high ionic conductivity includes: PEAE: 1 to 60 parts; a dispersing agent: 0.01 to 10 parts; a wetting agent: 0.01 to 15 parts; and a solvent: 100 parts. The PEAE can be evenly coated on a basal membrane to form a lithium battery separator, which solves the problem that pure PEAE cannot be directly and evenly coated on a separator. The PEAE is coated on the basal membrane for the first time to prepare the lithium battery separator, which ensures that the lithium battery separator has characteristics of the high adhesion and the high ionic conductivity.

Abstract: An air channel assembly (100) and a refrigerator (200) having the same are provided. The air channel assembly (100) includes: a casing (10) provided with an air supply channel (11) and a drainage port (14) therein. The air supply channel (11) has an air inlet (12) and a bottom air supply port (13). An air-supply guide portion (15) configured to lead air to the bottom air supply port (13) and a drainage guide portion (16) configured to lead water to the drainage port (14) are provided adjacent to the bottom air supply port (13). A guide direction of the air-supply guide portion (15) is opposite to a guide direction of the drainage guide portion (16).

Abstract: Embodiments of the present disclosure provide a service rate adjustment method and an apparatus. The service rate adjustment method in the present disclosure includes: receiving actual transmission capability information of a base station sent by the base station; and adjusting a service rate of a transmit end according to the actual transmission capability information and the service rate of the transmit end that sends service data to the base station. According to the embodiments of the present disclosure, rate adjustment for the transmit end that sends service data to the base station can be implemented, so that the service rate of the transmit end that sends the service data to the base station matches an actual transmission capability of the base station, thereby improving data transmission quality.

Abstract: Disclosed herein, are antibody-polymer-drug conjugates. The conjugate comprises a targeting moiety, one or more polymers, and one or more therapeutic agents. Also described herein, are compositions comprising the conjugates, methods of their preparation, and methods of treating various disorders with the conjugates or their compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: The present invention provides a method of searching for an oil-gas reservoir based on TRAP-3D software, including: establishing a three-dimensional lithology and fault data cube of an exploration working area according to three-dimensional seismic data and logging data; dividing the three-dimensional lithology and fault data cube into several depth slices of the same thickness, and performing an individual sand body unit division for each depth slice; sequentially inputting the depth slices of the three-dimensional lithology and fault data cube into the TRAP-3D software for oil-gas reservoir evaluation. The present invention improves the accuracy of three-dimensional trap evaluation, is conducive to precise searching of the oil-gas reservoir, can plot a Sweet-Spot diagram on a plane, and get exhibits oil-gas trap amounts of different depths in a longitudinal direction, and can obtain a total trap amount of the oil gas reservoir in the exploration working area.

Abstract: Embodiments of the present disclosure provide a service rate adjustment method and an apparatus. The service rate adjustment method in the present disclosure includes: receiving actual transmission capability information of a base station sent by the base station; and adjusting a service rate of a transmit end according to the actual transmission capability information and the service rate of the transmit end that sends service data to the base station. According to the embodiments of the present disclosure, rate adjustment for the transmit end that sends service data to the base station can be implemented, so that the service rate of the transmit end that sends the service data to the base station matches an actual transmission capability of the base station, thereby improving data transmission quality.

Abstract: An air channel assembly (100) and a refrigerator (200) having the same are provided. The air channel assembly (100) includes: a casing (10) provided with an air supply channel (11) and a drainage port (14) therein. The air supply channel (11) has an air inlet (12) and a bottom air supply port (13). An air-supply guide portion (15) configured to lead air to the bottom air supply port (13) and a drainage guide portion (16) configured to lead water to the drainage port (14) are provided adjacent to the bottom air supply port (13). A guide direction of the air-supply guide portion (15) is opposite to a guide direction of the drainage guide portion (16).

Abstract: The present invention provides a method of searching for oil-gas reservoir based on TRAP-3D software, including: establishing a three-dimensional lithology and fault data cube of an exploration working area according to three-dimensional seismic data and logging data; dividing the three-dimensional lithology and fault data cube into several depth slices of the same depth, and performing an individual sand body unit division for each depth slice; sequentially inputting the depth slices of the three-dimensional lithology and fault data cube into the TRAP-3D software for oil-gas reservoir evaluation. The present invention imporves the accuracy of three-dimensional trap evaluation, is conducive to precise searching of the oil-gas reservoir, can plot a Sweet-Spot diagram on a plane, and get exhibits oil-gas trap amounts of different depths in a longitudinal direction, and can obtain a total trap amount of the oil gas reservoir in the exploration working area.

Abstract: A method and an apparatus for adjusting a channel delay parameter of a multi-channel signal are provided in the embodiments of the present invention. The method includes: performing down-mixing processing on a multi-channel signal to obtain a processed signal (101); calculating energy distribution of the processed signal (102); and judging whether a comb filtering effect occurs in the processed signal according to the energy distribution of the processed signal, and adjusting a channel delay parameter of the multi-channel signal if the comb filtering effect occurs in the processed signal (103).

Abstract: The present invention provides a method and a device for identifying and obtaining AMBE encoding and decoding rate information in an SDP. The method for identifying the AMBE encoding and decoding rate information in the SDP includes: setting an SDP, which specifically includes: in an m attribute line of the SDP, using a payload type PT value to describe AMBE encoding and decoding, and in an fmtp attribute of an a attribute line of the SDP, identifying, in a format field, a PT value same as that of the m attribute line, and identifying AMBE encoding and decoding rate information in a format specific parameter field; and sending the set SDP to a peer end. The method and the device for identifying and obtaining the AMBE encoding and decoding rate information in the SDP provided by the present invention can implement automatic rate switching in a bearer plane.

Abstract: An encoding method includes: extracting core layer characteristic parameters and enhancement layer characteristic parameters of a background noise signal, encoding the core layer characteristic parameters and enhancement layer characteristic parameters to obtain a core layer codestream and an enhancement layer codestream. The disclosure also provides an encoding device, a decoding device and method, an encapsulating method, a reconstructing method, an encoding-decoding system and an encoding-decoding method. By describing the background noise signal with the enhancement layer characteristic parameters, the background noise signal can be processed by using more accurate encoding and decoding method, so as to improve the quality of encoding and decoding the background noise signal.

Abstract: Embodiments of the present invention disclose an audio decoding method, including: determining that bitstreams to be decoded are monophony coding layer and first stereo enhancement layer bitstreams; decoding the monophony coding layer to obtain a monophony decoded frequency-domain signal; reconstructing left and right channel frequency-domain signals in a first sub-band region by utilizing the monophony decoded frequency-domain signal after an energy adjustment; and reconstructing left and right channel frequency-domain signals in a second sub-band region by utilizing the monophony decoded frequency-domain signal without the energy adjustment.

Abstract: A method for generating background noise and a noise processing apparatus are provided in order to improve user experience. The method includes: if an obtained signal frame is a noise frame, a high band noise encoding parameter is obtained from the noise frame; weighting and/or smoothing is performed on the high band noise encoding parameter to obtain a second high band noise encoding parameter; and a high band background noise signal is generated according to the second high band noise encoding parameter. A noise processing apparatus is also provided.