Abstract: The present invention discloses a micro speaker, including a frame with a containment space, a magnetic circuit system and a vibration system accommodated in the containment space. The vibration system includes a first diaphragm, a dome skeleton fixed to the first diaphragm, and a voice coil fixed on the dome skeleton. A welding plate structure is fixed on the dome skeleton, and a first circuit board and a second circuit board fixed to the frame respectively. The first diaphragm includes a first diaphragm area and a second diaphragm area. The thickness of the first diaphragm area is greater than the thickness of the second diaphragm area. The local thickening material is adopted to avoid the problem of speaker rigidity asymmetry caused by unbalanced heat distribution, so as to realize the stable operation of the speaker, and the manufacturing process is simple.

Abstract: A method of leak detection for oil and gas pipeline based on excitation response and system thereof includes: applying an active excitation signal (a pressure pulse directly input by human) or a passive excitation signal (a pressure fluctuation caused by opening and closing valves, etc.) to an oil and gas pipeline with existing leakage points, the excitation signal is reflected at the pipeline boundary and the leakage, and the reflected pressure wave continues to propagate to upstream and downstream, and finally is collected by the dynamic pressure transducer, then the existing leakage of the pipeline is detected and positioned by analyzing the transient response signal and the reflected pressure wave of leakage signal.

Abstract: The present disclosure provides a method for fine-grained detection of driver distraction based on unsupervised learning, belonging to the field of driving behavior analysis. The method includes: acquiring distracted driving image data; and inputting the acquired distracted driving image data into an unsupervised learning detection model, analyzing the distracted driving image data by using the unsupervised learning detection model, and determining a driver distraction state according to an analysis result. The unsupervised learning detection model includes a backbone network, projection heads, and a loss function; the backbone network is a RepMLP network structure incorporating a multilayer perceptron (MLP); the projection heads are each an MLP incorporating a residual structure; and the loss function is a loss function based on contrastive learning and a stop-gradient strategy.

Abstract: A word mining method and apparatus, an electronic device and a readable storage medium are disclosed. The method includes: acquiring search data; taking first identification information, a search sentence and second identification information in the search data as nodes, and taking a relationship between the first identification information and the search sentence, a relationship between the first identification information and the second identification information and a relationship between the search sentence and the second identification information as sides to construct a behavior graph; obtaining a label vector of each search sentence in the behavior graph according to a search sentence with a preset label in the behavior graph; determining a target search sentence in the behavior graph according to the label vector; and extracting a target word from the target search sentence, and taking the target word as a word mining result of the search data.

Abstract: An antimicrobial peptide, the peptide comprising 2 to 20 variable domains, each variable domain is a sequence of 2 to 20 consecutive basic amino acids, wherein (a) the variable domains are separated from each other by a variable linker, (b) the variable linker can have 1 to 20 any amino acids other than two or more consecutive basic amino acids, and (c) the peptide has no more than 100 amino acids.

Abstract: A charging device for a physiological signal transmitter used to receive a physiological signal from the subcutaneous tissue of a living body and having a first electrical connecting port is disclosed. The charging device includes a transmitter placing seat and a charging module. The transmitter placing seat includes a bearing surface for placing the physiological signal transmitter and an opening configured to align with the first electrical connection port of the physiological signal transmitter. The charging module includes a second electrical connecting port, a third electrical connecting port, a circuit assembly and a control module. The second electrical connecting port is disposed in the opening, and driven to move between a first position and a second position. The third electrical connecting port connects to a power source.

Abstract: A method includes receiving an input text sequence to be synthesized into speech in a first language and obtaining a speaker embedding, the speaker embedding specifying specific voice characteristics of a target speaker for synthesizing the input text sequence into speech that clones a voice of the target speaker. The target speaker includes a native speaker of a second language different than the first language. The method also includes generating, using a text-to-speech (TTS) model, an output audio feature representation of the input text by processing the input text sequence and the speaker embedding. The output audio feature representation includes the voice characteristics of the target speaker specified by the speaker embedding.

Abstract: This relates to systems and methods for measuring a concentration and type of substance in a sample at a sampling interface. The systems can include a light source, optics, one or more modulators, a reference, a detector, and a controller. The systems and methods disclosed can be capable of accounting for drift originating from the light source, one or more optics, and the detector by sharing one or more components between different measurement light paths. Additionally, the systems can be capable of differentiating between different types of drift and eliminating erroneous measurements due to stray light with the placement of one or more modulators between the light source and the sample or reference. Furthermore, the systems can be capable of detecting the substance along various locations and depths within the sample by mapping a detector pixel and a microoptics to the location and depth in the sample.

Abstract: The present disclosure describes a semiconductor structure and a method for forming the same. The semiconductor structure can include a substrate, a first fin structure with a first height and a first width formed over the substrate, a second fin structure with a second height and a second width formed over the substrate, and an insulating stack formed over lower portions of the first and second fin structures. The second height can be substantially equal to the first height and the second width can be greater than the first width. A top surface of the insulating stack can be below top surfaces of the first and second fin structures.

Abstract: The present application discloses a vertical UMOSFET device with a high channel mobility and a preparation method thereof. The vertical UMOSFET device with a high channel mobility includes an epitaxial structure, and a source, a drain and a gate which match the epitaxial structure, where the epitaxial structure includes a first semiconductor, and a second semiconductor and a third semiconductor which are sequentially disposed on the first semiconductor, a groove structure matching the gate is also disposed in the epitaxial structure, and the groove structure continuously extends into the first semiconductor from a first surface of the epitaxial structure; a fourth semiconductor is also disposed at least between an inner wall of the groove structure and the second semiconductor, and the fourth semiconductor is a high resistivity semiconductor.

Abstract: Embodiments of the present disclosure provide a method, a device, and a storage medium for hybrid automatic gain control in a communication system. The method includes amplifying an input signal to generate an amplified signal which is converted into a plurality of output signals; obtaining a moving average amplitude of a plurality of output signals of a current input signal; and calculating a signal amplitude difference according to the moving average amplitude and a desired output signal amplitude level; calculating a signal amplitude ratio according to a plurality of output signals of two previous output signal blocks and AGC gains corresponding to the plurality of output signals of the two previous output signal blocks; obtaining a step size according to the signal amplitude difference and the signal amplitude ratio; and calculating an AGC gain of the current input signal according to the step size and a corresponding previous AGC gain.

Abstract: A stand including a frame including a first and second side walls and a base having a top surface, a bottom surface, and at least one slot. The at least one slot may be perpendicular to the first and second side walls and may extend through the base of the frame. The stand may include at least one adjustment component disposed below the base of the frame and extending through the at least one slot in the base of the frame. The stand may have at least one divider having a base and a wall. The base of the divider may have a bottom surface with at least one hole configured to receive the at least one adjustment component. The at least one divider may be configured to be disposed between the first side wall and the second side wall.

Abstract: A display method applied to an electronic device having a foldable screen includes: in response to the foldable screen being in a folded state, the electronic device controls the foldable screen to display a first interface of a first application, where the first interface is a cloud desktop interface of a first operating system; and in response to the foldable screen changing from the folded state to an unfolded state, the electronic device controls the foldable screen to simultaneously display the first interface and a second interface of a second operating system loaded by the electronic device.

Abstract: A memory device includes first transistor over a semiconductor substrate, wherein the first transistor includes a first word line extending over the semiconductor substrate; a second transistor over the semiconductor substrate, wherein the second transistor includes a second word line extending over the first word line; a first air gap extending between the first word line and the second word line; a memory film extending along and contacting the first word line and the second word line; a channel layer extending along the memory film; a source line extending along the channel layer, wherein the memory film is between the source line and the word line; a bit line extending along the channel layer, wherein the memory film is between the bit line and the word line; and an isolation region between the source line and the bit line.

Abstract: An electronic device includes a camera module comprising a circuit board, a lens, a first IC chip, and at least one metal column. The lens is mounted on the circuit board. The first IC chip and the metal column are arranged on a surface of the circuit board away from the lens. An attachment includes a body and a second IC chip. The first IC chip and the second IC chip can communicate with each other. The circuit board includes a first surface closed to the attachment. The metal column is arranged on the first surface, and the body includes a second surface close to the camera module. The body further includes at least a connecting channel. The metal column is located in the connecting channel to realize the electrical connection between the camera module and the attachment.

Abstract: Techniques for capacity management in computing systems are disclosed herein. In one embodiment, a method includes analyzing data representing a number of enabled users or a number of provisioned users to determine whether the analyzed data represents an anomaly based on historical data. The method can also include upon determining that the data represents an anomaly, determining a conversion rate between a change in the number of enabled users or the number of provisioned users and a change in a number of active users of the computing service and deriving a future value of the number of active users of the computing service based on both the detected anomaly and the determined conversion rate. The method can further include allocating and provisioning an amount of the computing resource in the distributed computing system in accordance with the determined future value of the active users of the computing resource.

Abstract: Provided herein is a method for preparing an Escitalopram bis-hydroxynaphtoate ((S)-(+)-1-(3-(-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydro-5-cyanisob enzofuranone) crystal form A. Said method is ecofriendly and non pollutive, and the obtained Escitalopram bis-hydroxynaphtoate crystal form A is highly pure and easy to reproduce.

Abstract: An electrical male terminal of this invention includes a clamp or crimp area, a main body, and a blade. Protruding members and support members of the main body act as overstress protection. A panel shield member protects a protruding guide member. In another embodiment of this invention, a protruding member extends from a first support member of the main body, and a cut-out portion at the lower portion of the main body accommodates therein the protruding member. Furthermore, in this another embodiment of the electrical male terminal of this invention, a protrusion extends from the unattached end portion of the lever member to protect the electrical male terminal from inadvertently falling out during use. The configuration or shape of the cross-section across the upper portion at the front portion of the main body and the support member at the front portion of the main body of the electrical male terminal is substantially U-shaped.

Abstract: A controller is arranged to: receive a first decoded beacon frame which includes a first indication of a first data transmission; receive a second decoded beacon frame which includes a second indication of a second data transmission; compare the first and second decoded beacon frames to determine common bytes in the first and second decoded beacon frames; determine an expected time of receiving the common bytes in a third beacon frame; control a device to enter into a low power mode; and control the device to wake up from the low power mode at a time to receive and decode at least a portion of the third beacon frame, in which the time to wake up is based on the expected time to receive the common bytes instead of based on an expected time to receive a preamble at a start of the third beacon frame.