Abstract: The present invention discloses a disaster prevention, early warning and production decision support method and system for a power distribution network, and relates to the technical field of the power distribution network. Various data is fused, a maximum wind load, a lightning trip-out rate, a maximum carrying capacity at a highest operation temperature and an average failure frequency and time under an environmental factor are calculated, and a power outage risk is evaluated and classified; and after an emergency, a power grid topology is analyzed, and a device outage probability is calculated to obtain a load power outage probability and risk and provide disaster early warning, monitoring and rush repair decision support.

Abstract: A non-pneumatic vacuum tire includes a tread layer, a carcass ply layer and a puncture-resistant airtight layer. The tread layer is provided on the carcass ply layer and located at a crown; a pattern groove is formed in a surface of the tread layer; the puncture-resistant airtight layer is fixedly provided between the tread layer and the carcass ply layer or fixedly provided under the carcass ply layer; the puncture-resistant airtight layer includes one or more layers of canvas; a warp and a weft of the canvas each are formed by a plurality of filaments; and the canvas forms the puncture-resistant airtight layer by rubber impregnation and rubber coating; the puncture-resistant airtight layer at least covers a clinch to a shoulder; and a lower end of the puncture-resistant airtight layer extends to the clinch and forms a turn-up structure.

Abstract: Embodiments provide an ear pad having an annular structure. The ear pad includes an inner layer and an outer layer covering the inner layer. The inner layer and the outer layer are separate of annular structures and are separated by a first medium layer. The inner layer coats a second medium layer. Acoustic impedance of the first medium layer is different from acoustic impedance of the inner layer and the outer layer. The ear pad is configured to close a front cavity space between a housing and an ear of a user, thereby preventing sound leakage and reducing external noise entering the ear of the user. Various ear pad embodiments provide a double-layer structure including the inner layer and the outer layer separated by the first medium layer.

Abstract: Embodiments of this application disclose a noise reduction headset. A branch pipe is disposed in the headset to connect a sound cavity inside the headset and an external environment. The branch pipe has a low-pass filter function to filter out high-band noise entering the sound cavity from the external environment, so that impact on sound quality inside the sound cavity that is caused by noise in the external environment is reduced, thereby implementing passive noise reduction.

Abstract: A wearing detection method, a wearable device, and a storage medium are provided. When the wearable device does not play audio and obtains a first audio signal captured by the microphone, the wearable device outputs a second audio signal by using the speaker, obtains a third audio signal captured by the microphone, obtains a signal feature of the third audio signal, and determines a wearing status of the wearable device based on the signal feature of the third audio signal. In this way, the wearing status of the wearable device can be determined by outputting the second audio signal and performing feature analysis on the corresponding input third audio signal, without a need of an additional sensor, thereby reducing sensor stacking.

Abstract: The present disclosure provides an assembly for incubating and washing a protein blotting membrane. The assembly comprises an incubation cover and an incubation tank, wherein a cavity for accommodating the protein blotting membrane and the solution is formed between the incubation cover and the incubation tank. The solution moves over the surface of the protein blotting membrane when there is a relative motion between the incubation cover and the incubation tank.

Abstract: An implementation method of an intelligent question-answering system for prostate cancer includes: acquiring lifestyle data for prostate cancer based on a preset first data source; using the lifestyle data for prostate cancer as metadata to construct a lifestyle knowledge base; constructing a lifestyle knowledge graph based on a preset second data source and the lifestyle knowledge base; and fusing the lifestyle knowledge base and the lifestyle knowledge graph to obtain the intelligent question-answering system for prostate cancer. The intelligent question-answering system for prostate cancer can help clinicians, medical staff, scientific researchers, and patients, as well as the general public, to acquire objective lifestyle data conveniently and efficiently, and accurately assess the impact on prostate cancer.

Abstract: Embodiments of this application disclose a method and a system for switching a sound channel of a headset, and a headset terminal, to accurately identify and determine a left-ear wearing status and a right-ear wearing status of a headset terminal, and accurately send a left-channel input audio signal and a right-channel input audio signal. A user does not need to manually switch a left channel and a right channel of the headset terminal. This greatly improves convenience of using the headset terminal.

Abstract: An earphone and a mobile terminal is provided, in which the earphone includes a housing and a speaker assembly. The housing internally includes a front cavity and a rear cavity that are separated by the speaker assembly. The front cavity is located on a side that is of the speaker assembly and that is a sound output direction, and the rear cavity is located on an opposite side of the sound output direction of the speaker assembly. One or more sound guide channels are disposed in the housing, each sound guide channel is disposed in a sidewall of the housing, and each sound guide channel is configured to: when the earphone is normally worn, connect air inside an ear canal of a user to air outside the ear canal without connecting air in the front cavity to air in the rear cavity.

Abstract: This application discloses a sound masking method and apparatus, and a terminal device. When the terminal device uses a receiver as an output end of an audio signal, the terminal device determines, based on the audio signal, a masking sound signal, and then transmits the masking sound signal by using a speaker. The masking sound signal is determined based on the audio signal, and a difference between a distance from the speaker to a far field and a distance from the receiver to the far field is small. Therefore, the masking sound signal can better mask a leaked sound of the receiver and prevent information leakage in a call sound.

Abstract: The present disclosure provides devices, machines and methods for incubating or washing a biological sample membrane or gel automated processing of biological samples. This disclosure provides a device comprising a washing cassette, a sample holder, a poking gear and a washing basin assembly. The disclosure also provides machines comprising the device and methods using the device.

Abstract: Embodiments provide an ear pad having an annular structure. The ear pad includes an inner layer and an outer layer covering the inner layer. The inner layer and the outer layer are separate of annular structures and are separated by a first medium layer. The inner layer coats a second medium layer. Acoustic impedance of the first medium layer is different from acoustic impedance of the inner layer and the outer layer. The ear pad is configured to close a front cavity space between a housing and an ear of a user, thereby preventing sound leakage and reducing external noise entering the ear of the user. Various ear pad embodiments provide a double-layer structure including the inner layer and the outer layer separated by the first medium layer.

Abstract: The present disclosure provides a needleless injection device and methods to use the same. The needleless injection device comprises a first slider, a second slider, a driving unit to move the first and second sliders, and an ampoule injection tube. The driving unit controls the movement of the first and second sliders such that the value of the combined momentum of the first and second sliders is substantially zero, and the movement of the first and second slider injects the liquid from the ampoule injection tube into a subject.

Abstract: Embodiments of this application disclose a noise reduction headset. A branch pipe is disposed in the headset to connect a sound cavity inside the headset and an external environment. The branch pipe has a low-pass filter function to filter out high-band noise entering the sound cavity from the external environment, so that impact on sound quality inside the sound cavity that is caused by noise in the external environment is reduced, thereby implementing passive noise reduction.

Abstract: The present disclosure provides devices, machines and methods for incubating or washing a biological sample. This disclosure provides a device comprising a motor and a control for the motor, a supporting frame comprising a receptacle, an assembly comprising a rotatable liquid storage container, a washing cassette, and a liquid collection and recovery tank. The disclosure also provides methods using the device.

Abstract: The present disclosure provides devices, machines and methods for incubating or washing a biological sample membrane or gel automated processing of biological samples. This disclosure provides a device comprising a washing cassette, a sample holder, a poking gear and a washing basin assembly.

Abstract: The present disclosure provides devices, systems and methods for automated processing of biological samples. This disclosure provides a gel-frame cassette for an automated bioprocessing device, comprising: a gel-frame comprising: a front face, a back face, a frame comprising: two vertical side bars, each comprising a gel-frame holding hole, a top bar connecting the two vertical side bars, a bottom bar connecting the two vertical side bars and a hollow chamber enclosed by the two vertical side bars, the top bar, and the bottom bar; a front panel in contact with the front face of the gel-frame, the front panel comprising an expanded upper portion, and a back panel in contact with the back face of the gel-frame, the back panel comprising a horizontal opening at the bottom of the back panel. This disclosure also provides an automated bioprocessing machine that processes the gel-frame cassette or the gel-frame.

Abstract: A vibration motor includes: a shell having an inner cavity; a vibrator; a magnetic component configured to drive the vibrator to vibrate; a first coil fixed to the shell; and a second coil fixed to the magnetic component. An alternating current applied to the first coil makes the vibrator to vibrate along the inner cavity. An adjustable current applied to the second coil makes a magnetic field of the magnetic component repel a magnetic field of the vibrator and provide a restoring force for the vibrator to reciprocate. A magnitude of the restoring force generated by the magnetic component is changed by adjusting a magnitude of the magnetic field of the magnetic component, to adjust a resonance frequency of the vibrator when the vibrator is vibrating. The resonance frequency of the vibration motor can be adjusted so that the vibration motor can have sufficiently high response in a wide frequency band.

Abstract: The present disclosure provides a speaker. The speaker includes a basket having an accommodating space, a vibration system and a magnetic circuit system which are accommodated in the accommodating space. The magnetic circuit system includes a yoke fixedly connected to the basket, a main magnetic steel assembled to the middle of the yoke, and a main pole core attached to a surface of the magnet away from the yoke. The main magnetic steel has a first leakage hole formed in a vibration direction of the vibration system, and the main pole core has a second leakage hole formed at a position corresponding to the first leakage hole. The first leakage hole and the second leakage hole are in communication with each other.