Abstract: A fluorescence detection system, including apparatus and methods, suitable for qPCR and other fluorescence-based analyses. The system may comprise various components, including a stage, an illumination module, a detection module, and an optical relay structure. The stage may be configured to support a sample holder. The illumination module may include one or more discrete light sources configured to produce excitation light. The detection module may be configured to detect fluorescence emission light produced, in response to the excitation light, by a fluorescent sample positioned in the sample holder. The optical relay structure may include a beamsplitter assembly configured to direct the excitation light from the illumination module along an illumination path to the sample holder and to direct the fluorescence emission light from the sample holder along a response path to the imaging module. The system may enhance the quality of excitation light hitting samples in the sample holder.

Abstract: The present disclosure provides a DMOS device with a junction field plate and its manufacturing method. A drain region is located on a surface of a semiconductor substrate. A source region is located in the semiconductor substrate at a bottom of a first trench. A gate electrode is located at the bottom of the first trench. The junction field plate improves an effect on reducing surface resistance. At the same time, a depth of trenches in the DMOS device may be reduced, and thereby a depth-to-width ratio of the device is reduced, improving the feasibility of increasing a voltage resistance level. Both the source region and the drain region in the DMOS device are led out on a same surface. A second doped polycrystalline silicon layer includes a first doped sublayer and a second doped sublayer with different conduction types.

Abstract: A method of setting a data path mode and dataflow priority for a terminal device is to be implemented by a network system. The network system supports a plurality of data path modes and stores a set of mode matching rules. The method includes: receiving identification data from the terminal device; selecting a target data path mode from among the data path modes according to the set of mode matching rules and the identification data thus received; operating in the target data path mode for processing a dataflow of the terminal device; and in response to receipt of a data packet from the terminal device, obtaining a priority level for the dataflow of the terminal device based on a set of dataflow priority rules and the data packet thus received.

Abstract: A photovoltaic system, a relay detection method, and a power supply system. When a fault, for example, sticking of the relay is detected, the controller stops sending a PWM driver gating signal to the inverter, and stops driving of a switch transistor in the inverter, and the inverter stops outputting power, and then determines whether a voltage difference between two ends of the relay is greater than a preset value, to determine whether the relay is faulty. The controller stops sending the PWM driver gating signal to the inverter only within a preset phase range of a voltage of the filter capacitor, to ensure that the voltage of the filter capacitor has a large value. Because the voltage of the filter capacitor is large, an alternating current grid-to-ground voltage is pulled up, to avoid detecting the fault as an alternating current grid-to-ground short circuit.

Abstract: Embodiments of this application provide an audio processing method and apparatus, a vocoder, an electronic device, and a computer-readable storage medium. The audio processing method includes performing speech feature conversion on a text to obtain at least one acoustic feature frame; extracting a conditional feature corresponding to each acoustic feature frame from each acoustic feature frame of the at least one acoustic feature frame by a frame rate network; performing frequency division and time-domain down-sampling on the current frame of each acoustic feature frame to obtain n subframes corresponding to the current frame; synchronously predicting sample values corresponding to the current m adjacent sampling points on the n subframes to obtain m×n sub-prediction values; obtaining an audio prediction signal corresponding to the current frame; and performing audio synthesis on the audio prediction signal corresponding to each acoustic feature frame to obtain a target audio corresponding to the text.

Abstract: An obtaining method of the tempering temperature range includes following operations: determining a determination criterion of a tempering weld bead effect of a steel obtained after a welding of; determining an Ac1 temperature at which the steel begins to form or transform into austenite during a welding heating process; obtaining a temperature field distribution during a welding process, and determining a thermal cycle curve and a size distribution of the temperature field in different temperature ranges; using different peak tempering temperatures to simulate the thermal cycle curve and test performances on a microstructure of a weld coarse grained region, and determining a lowest peak temperature Tw and a highest peak temperature Tp meeting the determination criterion; and obtaining the tempering temperature range ?Tw according to the highest peak temperature Tp and the lowest peak temperature Tw of the steel, wherein Tp=Ac1 for some steel.

Abstract: An apparatus includes a first sampling switch coupled between a first voltage bus and a sampling capacitor, a first clock generator configured to produce a first gate drive signal fed into a gate of the first sampling switch, the first clock generator comprising a first capacitive coupled clock shifter, a first reset circuit and a second reset circuit, a second sampling switch coupled between a second voltage bus and the sampling capacitor, and a second clock generator configured to produce a second gate drive signal fed into a gate of the second sampling switch, the second clock generator comprising a second capacitive coupled clock shifter, a third reset circuit and a fourth reset circuit.

Abstract: Embodiments of this application provide an audio processing method and apparatus, a vocoder, an electronic device, and a computer-readable storage medium. The audio processing method includes performing speech feature conversion on a text to obtain at least one acoustic feature frame; extracting a conditional feature corresponding to each acoustic feature frame from each acoustic feature frame of the at least one acoustic feature frame by a frame rate network; performing frequency division and time-domain down-sampling on the current frame of each acoustic feature frame to obtain n subframes corresponding to the current frame; synchronously predicting sample values corresponding to the current m adjacent sampling points on the n subframes to obtain m×n sub-prediction values; obtaining an audio prediction signal corresponding to the current frame; and performing audio synthesis on the audio prediction signal corresponding to each acoustic feature frame to obtain a target audio corresponding to the text.

Abstract: Disclosed are an audio processing method performed by an electronic device, a non-transitory computer-readable storage medium, and a computer program product. The method includes: sampling multiple fragments of audio data of a target object to obtain reference audio data of the target object; performing audio encoding on the reference audio data of the target object to obtain a reference embedding vector of the reference audio data; performing tone-based attention processing on the reference embedding vector of the reference audio data to obtain a tone embedding vector of the target object, wherein the tone embedding vector is independent from content of the audio data; and generating audio data of a target text that conforms to a tone of the target object according to the tone embedding vector of the target object.

Abstract: An electronic component assembly having thermal pads with thermal vias coupling an image sensor and a camera board fab is provided for heat dissipation. The electronic component assembly can include: a circuit board having at least one thermal pad disposed on a top surface of the circuit board; and an image sensor disposed on the top surface of the circuit board, having at least one conductive pad disposed at at least one corner of the image sensor. The at least one thermal pad is coupled to the at least one conductive pad of the image sensor and the at least one thermal pad is formed with a plurality of first thermal vias penetrating the thermal pad and the circuit board for transfer of heat of the image sensor.

Abstract: The present invention discloses a method for designing an interference noise of speech based on the human speech structure, including the following steps: (1): obtaining a large amount of speech data containing different speakers and different speech contents, extracting voiceprint information, and then building an initial speech data set; (2): for each user, obtaining a small amount of speech data of the user, extracting voiceprint information, and then matching the most similar speech data in the initial speech data set; (3): performing data augmentation on the matched speech data; (4): segmenting the augmented speech data with a phoneme segmentation algorithm to form a vowel data set and a consonant data set; (5): constructing three noise sequences based on the vowel data set and the consonant data set, and performing superimposition to obtain an interference noise; and (6): continuously generating and playing randomly generated interference noise, and continuously injecting the interference noise into rec

Abstract: A heterojunction semiconductor device with a low on-resistance includes a metal drain electrode, a substrate, and a buffer layer. A current blocking layer is arranged in the buffer layer, a gate structure is arranged on the buffer layer, and the gate structure comprises a metal gate electrode, GaN pillars and AlGaN layers, wherein a metal source electrode is arranged above the metal gate electrode; and the current blocking layer comprises multiple levels of current blocking layers, the centers of symmetry of the layers are collinear, and annular inner openings of the current blocking layers at all levels gradually become smaller from top to bottom. The AlGaN layers and the GaN pillars are distributed in a honeycomb above the buffer layer.

Abstract: A method for printing a Zigbee install code includes reading the Zigbee install code from a Zigbee device via a radio interface and printing the Zigbee install code. The Zigbee install code can be read from the Zigbee device before or after assembly of the Zigbee device has been completed.

Abstract: The present invention relates to the technical field of geomagnetic activities, and in particular to an auroral substorm simulation method and macroscopic model based on neutral atom imaging measurement. The method includes the following steps: establishing a neutral atom imaging simulation equation for dynamic evolution of ion flux distribution of a ring current guided by ion pitch angle diffusion; and using the neutral atom imaging simulation equation, forward modeling neutral atom simulation images in an ecliptic plane corresponding to different ion pitch angle distribution functions during a geomagnetically quiet period and during an auroral substorm period to reproduce ring current ion flux distribution patterns in a growth phase stage and a recovery phase stage of an auroral substorm process.

Abstract: A non-destructive measurement method and apparatus for the turn-to-turn resistivity distribution (TTRD) in non-insulation (NI) superconducting coils. The method includes: during the discharging or charging process, obtaining experimental values of voltage varying over preset time at different positions of the test coil; dividing the test coil into a plurality of measurement units and obtaining basic circuit elements; then constructing a preset equivalent circuit model including the basic circuit elements; based on the constructed equivalent circuit model, obtaining the first simulated values of voltage varying over preset time at different positions of the test coil; finally, determining the TTRD of the test coil based on the fitness value between experimental values and the first simulated values. When there is high fitness value between the first simulated values and experimental values, the TTRD corresponding to the first simulated values is considered as the TTRD within the test coil.

Abstract: An electronic component assembly having thermal pads with thermal vias coupling an image sensor and a camera board fab is provided for heat dissipation. The electronic component assembly can include: a circuit board having at least one thermal pad disposed on a top surface of the circuit board; and an image sensor disposed on the top surface of the circuit board, having at least one conductive pad disposed at at least one corner of the image sensor. The at least one thermal pad is coupled to the at least one conductive pad of the image sensor and the at least one thermal pad is formed with a plurality of first thermal vias penetrating the thermal pad and the circuit board for transfer of heat of the image sensor.

Abstract: A non-destructive measurement method and apparatus for the turn-to-turn resistivity distribution (TTRD) in non-insulation (NI) superconducting coils. The method includes: during the discharging or charging process, obtaining experimental values of voltage varying over preset time at different positions of the test coil; dividing the test coil into a plurality of measurement units and obtaining basic circuit elements; then constructing a preset equivalent circuit model including the basic circuit elements; based on the constructed equivalent circuit model, obtaining the first simulated values of voltage varying over preset time at different positions of the test coil; finally, determining the TTRD of the test coil based on the fitness value between experimental values and the first simulated values. When there is high fitness value between the first simulated values and experimental values, the TTRD corresponding to the first simulated values is considered as the TTRD within the test coil.

Abstract: A battery cell may comprise a housing, an electrode assembly, an end cover and an isolator. The housing may be provided with an opening at an end along a first direction. The housing may comprise a first side plate with a first plate body and a second plate body arranged along a second direction, the first plate body and the second plate body may be welded to form a welding part extending to the opening, and the second direction is perpendicular to the first direction. The electrode assembly may be accommodated in the housing. The end cover may be used for covering the opening. The isolator may be arranged between the first side plate and the electrode assembly, and attached to the first side plate and cover at least part of the welding part to isolate the electrode assembly from the welding part.

Abstract: A speech synthesis method includes: converting a text input sequence into a text feature representation sequence; inputting the text feature representation sequence into an encoder including N encoding layers; the N encoding layers including an encoding layer Ei and an encoding layer Ei+1; the encoding layer Ei+1 including a first multi-head self-attention network; acquiring a first attention matrix and a historical text encoded sequence outputted by the encoding layer Ei, and generating a second attention matrix of the encoding layer Ei+1 according to residual connection between the first attention matrix and the first multi-head self-attention network and the historical text encoded sequence; and generating a target text encoded sequence of the encoding layer Ei+1 according to the second attention matrix and the historical text encoded sequence, and generating synthesized speech data matched with the text input sequence based on the target text encoded sequence.

Abstract: The present disclosure provides a DMOS device with a junction field plate and its manufacturing method. A drain region is located on a surface of a semiconductor substrate. A source region is located in the semiconductor substrate at a bottom of a first trench. A gate electrode is located at the bottom of the first trench. The junction field plate improves an effect on reducing surface resistance. At the same time, a depth of trenches in the DMOS device may be reduced, and thereby a depth-to-width ratio of the device is reduced, improving the feasibility of increasing a voltage resistance level. Both the source region and the drain region in the DMOS device are led out on a same surface. A second doped polycrystalline silicon layer includes a first doped sublayer and a second doped sublayer with different conduction types.