Abstract: The present disclosure relates to a speaker device. The speaker device may include a speaker assembly and a supporting connector. The speaker assembly may include a speaker module and a button module. The supporting connector may be configured to contact with the human head and provide a vibration fulcrum for a vibration of the speaker assembly. A distance between a center of the button module and the vibration fulcrum may be not greater than a distance between a center of the speaker module and the vibration fulcrum.

Abstract: A data access method in a file system comprises receiving a data access request including an identifier of a to-be-accessed node, obtaining access permission for the to-be-accessed node based on the identifier of the to-be-accessed node, wherein when a permission version number of the to-be-accessed node is not the latest in permission version numbers of all nodes indicated by path information of the to-be-accessed node in a file system, the access permission for the to-be-accessed node inherits a permission record corresponding to a parent node that is of the to-be-accessed node and that has a latest permission version number, and performing authentication based on the access permission for the to-be-accessed node, and accessing data of the to-be-accessed node after the authentication succeeds.

Abstract: The present disclosure relates to a speaker device. The speaker device may include a core housing, a circuit housing, an ear hook, and a housing sheath. The core housing may be configured to accommodate an earphone core. The circuit housing may be configured to accommodate a control circuit or a battery. The control circuit or the battery may be configured to drive the earphone core to vibrate to produce sound. The ear hook may be configured to connect the core housing with the circuit housing. The housing sheath may at least partially cover the circuit housing and the ear hook. The housing sheath may include waterproof material. The waterproof effect of a speaker device may be improved through sealed connections between various components of the speaker device in this the present disclosure.

Abstract: Computer implemented methods and systems are provided that comprise, under control of one or more processors of a medical device, where the one or more processors are configured with specific executable instructions. The methods and systems include sensing circuitry configured to define a sensing channel to collect biological signals, memory configured to store program instructions, a processor configured to implement the program instructions to at least one of analyze the biological signals, manage storage of the biological signals or deliver a therapy, and communication circuitry configured to wirelessly communicate with at least one other implantable or external device, the communication circuitry configured to transition between a sleep state, a partial awake state and a fully awake state.

Abstract: A terminal frame of a stator frame comprises a body adapted to receive a terminal. The body of the terminal frame is also adapted to be mounted to a coil frame of the stator frame in a detachable manner.

Abstract: The embodiments of present disclosure disclose a loudspeaker. The loudspeaker may include an ear hook including a first plug end and a second plug end. The ear hook may be surrounded by a protection sleeve, and the protection sleeve may be made of an elastic waterproof material. The loudspeaker may include an earphone core housing configured to accommodate the earphone core, and the earphone core housing may be fixed to the first plug end through plugging, and may be elastically abutted against the protection sleeve elastically. The loudspeaker may include a circuit housing configured to accommodate a control circuit or a battery. The circuit housing may be fixed to the second plug end through plugging.

Abstract: A compilation method includes obtaining a source program code. The source program code includes a first function in a first language code and a second function in a second language code. The first language code is a native language. The second language code is a non-native language. The method also includes generating a third language code based on the source program code. The third language code includes a third function, a fourth function and a fifth function. The third function is generated based on the first function. The fourth function is generated based on the second function. The fifth function is generated based on the first function and the second function. Executing the third function invokes the fourth function via the fifth function.

Abstract: Disclosed is a space partitioning method for a database table, including: determining a first data amount within a first time period and a second data amount within a second time period of the database table; calling a target network model, inputting the first data amount and the second data amount into the target network model, and outputting a third data amount within the target time period, wherein the target network model is configured to predict a data amount of a next time period based on data amounts of a previous time period and a current time period; and determining a number of target regions based on the third data amount within the target time period, and partitioning, based on the number of target regions, a space in the database table configured to store the data to be stored.

Abstract: A packet processing method includes: obtaining, at a Medium Access Control (MAC) layer, a first fragmented data frame included in a first data frame; buffering the first fragmented data frame into a first queue; obtaining, at the MAC layer, a second fragmented data frame included in a second data frame; buffering the second fragmented data frame into a second queue; sending the first fragmented data frame to a forwarding processing module; obtaining first forwarding information using the forwarding processing module; sending the second fragmented data frame to the forwarding processing module after sending the first fragmented data frame to the forwarding processing module; and obtaining second forwarding information.

Abstract: A port mode adaptation method includes a network device determining a status of a port on the network device. The method includes the network device setting a mode of the port to an Ethernet interface mode if the status of the port satisfies a first condition. In this way, when the network device identifies the mode of the port on the network device as the FlexE interface mode, and there is no link at the FlexE shim of the port, the network device may determine that a mode used by a port interconnected with the port is not a FlexE interface mode. In this case, the network device may adaptively set the mode of the port to the Ethernet interface mode, to ensure that the port on the network device can use a same mode as another port interconnected with the port.

Abstract: The present invention relates to various compositions and methods of using these compositions for imaging natriuretic peptide receptors using, for example, positron emission tomography.

Abstract: A method, system and external instrument are provided. The method initiates a communication link between an external instrument (EI) and an implantable medical device (IMD), established a first connection interval for conveying data packets between the EI and IMD and monitors a connection criteria that includes at least one of a data throughput requirement. A battery indicator or link condition of the communications link is between the IMD and EI. The method further changes from the first connection interval to a second connection interval based on the connection criteria.

Abstract: An intelligent regulation system for a mechanical seal, the system comprising: a monitoring device for measuring a signal correlated with a seal in real time; a control device, comprising a state determination module, a feasible region analysis module, an evaluation module and an optimizing module, wherein the state determination module unscrambles the signal obtained by the monitoring device to estimate the state of the seal; the feasible region analysis module determines, according to a current state, a state that the seal can reach by means of the regulating effect of a regulating device; the evaluation module evaluates a value for the state of the seal; and the optimizing module searches a feasible region, where the seal is regulated, for a regulating method with a relatively high value to the greatest extent, and accordingly sends an instruction to the regulating device; and the regulating device for actively applying an action to the seal according to the instruction given by the control device.

Abstract: The present disclosure provides a loudspeaker device. The loudspeaker device includes a support connector configured to be in contact with a head and at least one speaker component. The at least one speaker component may include an earphone core and a core housing for accommodating the earphone core. The core housing may be fixedly connected to the support connector. The core housing may be provided with at least one key module. The support connector may accommodate a control circuit or a battery. The control circuit or the battery may drive the earphone core to vibrate to produce sound. The loudspeaker device of the present disclosure may optimize sound transmission efficiency and increase volume, th ereby improving the user experience.

Abstract: The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus may include an ear hook, a core housing, and a circuit housing. The ear hook may include a first plug end and a second plug end. The ear hook may be surrounded by a protective sleeve. The protective sleeve may be made of an elastic waterproof material. The core housing may be used for accommodating an earphone core. The core housing may be fixed to the first plug end and elastically abutted against the protective sleeve. The circuit housing may be used for accommodating a control circuit or a battery. The circuit housing may be fixed to the second plug end. The control circuit or the battery may drive the earphone core to vibrate. The vibration of the earphone core may generate a driving force to drive a housing panel of the core housing to vibrate. The driving force may be not parallel to a normal line of the housing panel.

Abstract: The present disclosure relates to a speaker device. The speaker device may include a speaker assembly and a supporting connector. The speaker assembly may include a speaker module and a button module. The supporting connector may be configured to contact with the human head and provide a vibration fulcrum for a vibration of the speaker assembly. A distance between a center of the button module and the vibration fulcrum may be not greater than a distance between a center of the speaker module and the vibration fulcrum.

Abstract: The present invention discloses a method for recycling urea in the process of separating and purifying unsaturated substances through a urea adduction method. The method comprises the following steps: liposoluble substances containing target unsaturated components are used as raw materials, and subjected to urea adduction, crystallization and filtration to produce a filtrate, from which the specific unsaturated components are obtained; the urea adduct is dissolved in a polar solvent, and after the adducted adducts are layered and released, adding a certain solvent to the urea solution to adjust the polarity, then cooling for crystallization, and recycling the urea.

Abstract: An image acquisition system is disclosed. The image acquisition system includes: an object area configured to form an image on an image side; a condenser lens configured to converge light from the object area, the condenser lens being located on a light path of the object area; a color filter configured to filter the light collected by the condenser lens to obtain single wavelength of light, according to a forward direction of the light, the color filter being placed in front of the condenser lens; and an image sensor configured to receive the image on an imaging plane position of an image space, the image sensor being placed in front of the imaging plane position according to the forward direction of the light. The matrix image acquisition system and the matrix image projection system including the image acquisition system are also disclosed.

Abstract: Rock reservoir structure characterization method comprises: acquiring a three-dimensional seismic data volume of a rock reservoir to be characterized; performing a transformation on all the intrinsic mode function components obtained through decomposition to obtain time-frequency spectrum of each intrinsic mode function component, and adding the time-frequency spectrums of all the components to obtain the time-frequency spectrums of the seismic data; performing cross-correlation between each of the time-frequency components of the near-well seismic traces and the synthetic seismic trace obtained by logging data of the same well, and screening out a sensitive component with the highest correlation degree as an input feature, and performing fuzzy C-means clustering and spatial smoothing on the sensitive component with the highest correlation degree to obtain a seismic facies with set standard division; and depicting the rock reservoir according to the seismic facies divided by the set standard.

Abstract: Provided are polymers, which may be crosslinked to form a main-chain liquid crystalline (LC) hydrogel with a three-dimensional network. Also provided are methods of using the hydrogel as a substrate for tissue culture. For example, the hydrogel may organize into LC phases and encapsulate a plurality of cells within its polymeric network. In some embodiments, human stem cells are cultured using the present method with good viability and demonstrate faster proliferation in the present LC hydrogel compared to a non-LC gel.