Abstract: Disclosed are an integrated mining method and an integrated mining system of coal breaking, coal extraction and water circulation in a U-well. The integrated mining system includes a first ground facility unit, a second ground facility unit, a jet unit and an extraction unit. The first ground facility unit is configured to transport jet fluid to the jet unit. The jet unit is configured to break a coal seam in a sub-segment to obtain broken cinders. The extraction unit is configured to extract a coal-water mixture. The second ground facility unit is configured to receive the coal-water mixture. In response to determining that an extraction of the sub-segment is complete, the jet unit and the extraction unit is configured to move to a next sub-segment using powers provided by the first ground facility unit and the second ground facility unit.

Abstract: A coal and coalbed methane mining system based on ground drilling includes: a drilling component, a coal mining drill bit and a ground facility group. The coal mining drill bit is set at a predetermined end of a directional borehole in a coal seam, connected to the drilling component through a connecting pipeline. The ground facility group is connected to the drilling component, to provide coal cutting slurry for the coal mining drill bit, receive reflux slurry carrying coal and coalbed methane, and precipitate and separate the reflux slurry carrying the coal and the coalbed methane. A coal and coalbed methane mining method based on ground drilling and related devices are also disclosed.

Abstract: The present invention generally relates to electrolytes for use in various electrochemical devices. In some cases, the electrolytes are relatively safe to use; for example, the electrolytes may be resistant to overheating, catching on fire, burning, exploding, etc. In some embodiments, such electrolytes may be useful for certain types of high-voltage cathode materials. In some cases, the electrolytes may include ion dissociation compounds that can dissociate tight ion pairs. Non-limiting examples of ion dissociation compounds include trialkyl phosphates, sulfones, or the like. Other aspects of the invention are generally directed to devices including such electrolytes, methods of making or using such electrolytes, kits including such electrolytes, or the like.

Abstract: A speaker module includes a casing, a speaker unit and a vibration absorber. The speaker unit has a sound cavity. The speaker unit is disposed on the casing, and the speaker unit includes a first diaphragm. The vibration absorber is disposed in the casing, and the vibration absorber has a second diaphragm. When the first diaphragm vibrates, the airflow generated by the first diaphragm drives the second diaphragm to vibrate, and the vibration direction of the second diaphragm is opposite to the vibration direction of the first diaphragm, so as to absorb the vibration generated by the first diaphragm to the casing.

Abstract: A control method of microphone and an electronic apparatus are provided. In the control method, a switching operation is received. In response to receiving the switching operation, a sound-receiving state of a target program is detected. The sound-receiving state of the microphone is switched through an audio effect processing corresponding to the target program according to the detection result of the sound-receiving state, to switch the sound-receiving state of the target program from one of an activated state and a disabled state to the other. The switching operation is used for switching the sound-receiving state of the microphone. The sound-receiving state represents whether to receive sound through the microphone. The sound-receiving state includes the activated state and the disabled state. The target program is a currently running application. The audio effect processing is implemented by an audio engine between an application layer and a driver layer.

Abstract: An electrical connector includes an insulating body having accommodating slots and terminals accommodated in the accommodated slots. Each terminal has a body portion, a first elastic arm, a separation provided on the first elastic arm and the body portion, and a second elastic arm having at least one end integrally connected to a corresponding end of the separation. A left side edge or a right side edge of the body portion has a strip connecting edge to be connected to a strip. Each of left and right side edges of the separation has a first edge and a second edge located below the first edge. The second edge protrudes inward toward the separation relative to the first edge, such that the upper end of the body portion forms an abutting region for a jig to abut against each terminal to be assembled downward in a corresponding accommodating slot.

Abstract: A method for forming a semiconductor device. The method includes performing a first etching process to define one or more fins and corresponding device isolation structures on a substrate. The method further includes forming an enhancement layer on each of the fins, such that the enhancement layer encapsulates each fin. The method further performs a second etching process to remove one or more of the fins, and performs a third etching process to remove a portion of the enhancement layer. The method also includes depositing an STI material on the fins and the device isolation structures, followed by recessing the fins relative to the STI material.

Abstract: An audio parameter setting method and an electronic device are provided. In the method, a sound signal played by the speaker device is obtained. A frequency response curve of the sound signal is generated. The frequency response curve of the sound signal is smoothed to obtain a smoothed response curve of the sound signal. A target frequency response curve is determined according to the sound signal. Multiple turning points of the smoothed response curve of the sound signal are detected by using a neural network model. Equalizer parameters are determined according to the multiple turning points of the smoothed response curve and the target frequency response curve.

Abstract: An audio parameter optimizing method and a computing apparatus related to audio parameters are disclosed. In the method, a sound signal is divided into multiple sound frames in a time domain, and a wide dynamic range compression (WDRC) parameter corresponding to the sound signal is determined according to a maximum root mean square (RMS) and an average RMS. Output powers corresponding to input powers between the maximum RMS and the average RMS in the WDRC parameter are increased. Accordingly, a proper parameter could be provided.

Abstract: An audio parameter optimizing method and a computing apparatus related to audio parameters. In the method, sound features of multiple sound signals are obtained. A wide dynamic range compression (WDRC) parameter corresponding to each of the sound signals is determined. Multiple data sets including the sound features and the corresponding WDRC parameters of the sound signals are created. The data sets are used to train a neural network, so as to generate a parameter inference model. The parameter inference model is configured to determine the WDRC parameter of a to-be-evaluated signal. Accordingly, a proper parameter could be provided.

Abstract: An electronic system includes an air vent, a heat sink, a fan, and an acoustic filter. The acoustic filter is disposed between the air vent and the heat sink and includes a sound-receiving opening, a sound-emitting opening, an expansion chamber, a neck channel, and a resonant chamber. The neck channel includes a first opening and a second opening whose surface is perpendicular to the surface of the sound-receiving opening. The first opening is in communication with the expansion chamber. The resonant chamber is connected to the second opening. Fan noise that enters the resonant chamber via the neck tube is dampened by reflective acoustic waves generated by the resonant chamber.

Abstract: A pairing method of dual channel and a mobile device are provided. In the method, an available area is defined according to a first position relation between two audio playback devices and a reference target. A second position relation between the mobile device and the available area is determined. A first corresponding relation between the two audio playback devices and audio signals of the left channel and the right channel is determined according to the second position relation. The audio signals of the left channel and the right channel are played by the two audio playback devices respectively according to the first corresponding relation. Accordingly, the existing problem that the dual channel could not be distinguished may be solved.

Abstract: A processing method of a sound watermark and a sound watermark processing apparatus are provided. In the method, an inserted position of a reference code in an initial watermark sequence is determined according to signal power of a main sound signal to generate an extended watermark sequence. The main sound signal and the extended watermark sequence are synthesized to generate a watermark-embedded sound signal. In this way, noise interference may be overcome.

Abstract: A sound-receiving system is provided, including: a sound-guiding tube, a microphone, and an acoustic perforated sheet. The sound-guiding tube has a winding path, including a first end, a second end, and a sound-receiving hole. The second end is opposite the first end. The sound-receiving hole is disposed at the first end. The microphone is abutted against the second end. The acoustic perforated sheet is disposed adjacent to the sound-receiving hole and is a distance away from the sound-receiving hole. The sound-receiving hole is offset from the microphone. The acoustic perforated sheet reduces and filters the frequency response of a specific frequency range of the microphone.

Abstract: A speaker module includes a casing and a speaker unit. The casing has a sound outlet. The speaker unit is arranged in the casing, the speaker unit and the sound outlet are arranged along a transverse axis, and the speaker unit includes a bearing base, a first speaker assembly, and a second speaker assembly. The first and second speaker assemblies are disposed on the bearing base. The first speaker assembly and the second speaker assembly are symmetrical relative to the bearing base. A first sound cavity is formed between the casing and the first speaker assembly, a second sound cavity is formed between the casing and the second speaker assembly, the first sound cavity and the second sound cavity are communicated with the sound outlet, and the first sound cavity and the second sound cavity have the same size and are symmetrical relative to the bearing base.

Abstract: A method for performing camera modality adaptation in a simultaneous localization and mapping (SLAM) device is provided. The SLAM device includes a camera sensor and a SLAM processor. The method includes acquiring data from the SLAM device, and determining, based on the acquired data, an operational condition of the SLAM device. The method also includes deciding, based on the determined operational condition, a camera modality for the SLAM device. The method further includes controlling, based on the decided camera modality, a camera modality of an image sequence inputted into the SLAM processor.

Abstract: A method for performing frame rate adaptation in a simultaneous localization and mapping (SLAM) device is provided. The SLAM device includes a SLAM processor. The method includes: acquiring data from the SLAM device; determining, based on the acquired data, an operative condition of the SLAM device; deciding, based on the determined operative condition, a target frame rate for the SLAM device; and controlling, based on the decided target frame rate, a frame rate of an image sequence inputted into the SLAM processor.

Abstract: A speaker module includes a casing and a speaker unit. The casing has a sound outlet. The speaker unit is arranged in the casing, the speaker unit and the sound outlet are arranged along a transverse axis, and the speaker unit includes a bearing base, a first speaker assembly, and a second speaker assembly. The first and second speaker assemblies are disposed on the bearing base. The first speaker assembly and the second speaker assembly are symmetrical relative to the bearing base. A first sound cavity is formed between the casing and the first speaker assembly, a second sound cavity is formed between the casing and the second speaker assembly, the first sound cavity and the second sound cavity are communicated with the sound outlet, and the first sound cavity and the second sound cavity have the same size and are symmetrical relative to the bearing base.

Abstract: A speaker module includes a casing, a speaker unit and a first vibration absorber. The speaker unit has a sound cavity. The speaker unit is disposed on a first wall of the casing. The speaker unit includes a diaphragm, a coil and a magnet, and the coil is configured to drive the diaphragm to vibrate relative to the magnet. The first vibration absorber is disposed in the sound cavity, and the first vibration absorber has a first natural frequency. When the ratio of the frequency of the diaphragm to the first natural frequency is greater than 0.781 and less than 1.28, the first vibration absorber is configured to absorb the vibration generated by the diaphragm to the casing.

Abstract: A processing method of a sound watermark and a sound watermark generating apparatus are provided. The method includes the following. A conversation-received sound signal sound signal is obtained by a sound receiver. A reflected sound signal is generated according to a virtual reflection condition and the conversation-received sound signal. A first watermark sound signal is generated according to a watermark identification code and the reflected sound signal. A second watermark sound signal is generated according to a sound signal distance value and the first watermark sound signal. An output watermark sound signal is generated by synthesizing the first watermark sound signal and the second watermark sound signal.