Abstract: A plasma reactor, configured to process low temperature plasma, includes: a rotating reactor, a fixed reactor, and a master tube. An end of the master tube is connected to two branched tubes, one of the two branched tubes is connected to the rotating reactor, and the other one of the two branched tubes is connected to the fixed reactor. When a flow rate of inlet gas is less than a threshold defined by a flow detector, all the gas enters the rotating reactor from one of the two branched tubes. When the flow rate of the inlet gas is greater than the threshold of the flow detector, a valve is configured to operate to allow a part of the inlet gas that exceeds the threshold to enter the fixed reactor from the other one of the two branched tubes.

Abstract: A method, an apparatus of providing a service for a large model scenario, an electronic device, and a medium are provided in the present disclosure, which relate to the field of computer technology, in particular to the field of artificial intelligence technology such as deep learning, natural language processing, and large model, and the specific implementation is as follows: in response to receiving service request information from a first interface of the intelligent agent platform, invoking a key information extraction service in the intelligent agent platform, and performing key information extraction on the service request information to obtain first key information; in a case where a number of first key information is greater than a preset number, invoking an information merging service in the intelligent agent platform, and determining second key information from a plurality of first key information; and invoking a service content determination service in the intelligent agent platform, and determinin

Abstract: An intention recognition method includes: obtaining an input sentence; obtaining at least one first sentence-intention pair based on the input sentence, in which the first sentence-intention pair includes a candidate sentence similar to the input sentence and a candidate intention to which the candidate sentence belongs; generating first prompt information based on the at least one first sentence-intention pair; and obtaining a target intention to which the input sentence belongs by performing an intention recognition on the input sentence based on the first prompt information.

Abstract: A blackboard eraser cleaning device is provided and includes an outer shell (1). A cover (2) is arranged at the upper part of the outer shell (1), an inner shell (3) is arranged inside the outer shell (1). A clamping mechanism (19) is arranged at the upper end of the inner shell (3). A leaning station (8) is defined inside the clamping mechanism (19). A cylinder (9) is arranged around the clamping mechanism (19). A height adjustment mechanism (10) is arranged inside the outer shell (1). The height adjustment mechanism (10) includes a servo (101) arranged inside the outer shell (1) and located on a side of the inner shell (3). According to the present application, a variety of cleaning modes may be achieved to meet the actual usage of the blackboard eraser.

Abstract: A dielectric barrier discharging tube, which has a synergistic column of needle electrodes to utilize a plurality of channels to adsorb catalysts, is provided. The dielectric barrier discharging tube includes: a quartz tube, a high-voltage pole, an inner electrode, and a plurality discharging needle sets. Two catalytic blocks are arranged respectively on two sides of each set discharging needles. Each catalytic block defines at least one inclined inner channel and at least one inclined outer channel. A higher end of each channel faces towards the discharging needle, and a lower end of each channel faces towards the discharging needle.

Abstract: A blackboard eraser cleaning device is provided and includes an outer shell (1). A cover (2) is arranged at the upper part of the outer shell (1), an inner shell (3) is arranged inside the outer shell (1). A clamping mechanism (19) is arranged at the upper end of the inner shell (3). A leaning station (8) is defined inside the clamping mechanism (19). A cylinder (9) is arranged around the clamping mechanism (19). A height adjustment mechanism (10) is arranged inside the outer shell (1). The height adjustment mechanism (10) includes a servo (101) arranged inside the outer shell (1) and located on a side of the inner shell (3). According to the present application, a variety of cleaning modes may be achieved to meet the actual usage of the blackboard eraser.

Abstract: The present disclosure provides a soft ground cleaning vehicle, including a main body frame; wherein each of both sides of the main body frame is arranged with a screw propulsion mechanism, and a lower portion of each of the both sides of the main body frame is arranged with a bottom frame; a power assembly is arranged on the bottom frame, and an extension frame is arranged on a lower portion of the bottom frame; the extension frame is arranged with a rotation assembly; a plastic track is arranged on the power assembly and the rotation assembly; a plurality of stand plates are arranged on an outer strip surface of the plastic track.

Abstract: A dielectric barrier discharge tube includes a quartz tube, the middle of the quartz tube is sleeved with a high-voltage electrode, an inner electrode is arranged in the quartz tube, a drive fan is arranged at the end of the inner electrode, a discharging needle set is arranged on the surface of the inner electrode, and a spiral discharging wire is suspended and arranged at the tip of the discharging needle set. After a high voltage electric field is applied to the high voltage electrode, the discharging needle set and the spiral discharging wire discharge, the discharging needle set and the spiral discharging wire discharge at different time points. When the gas passes through the driving fan, the flow direction of the gas is changed. A cyclone can be generated to drive the gas to flow towards the discharging area.

Abstract: A plasma reactor, configured to process low temperature plasma, includes: a rotating reactor, a fixed reactor, and a master tube. An end of the master tube is connected to two branched tubes, one of the two branched tubes is connected to the rotating reactor, and the other one of the two branched tubes is connected to the fixed reactor. When a flow rate of inlet gas is less than a threshold defined by a flow detector, all the gas enters the rotating reactor from one of the two branched tubes. When the flow rate of the inlet gas is greater than the threshold of the flow detector, a valve is configured to operate to allow a part of the inlet gas that exceeds the threshold to enter the fixed reactor from the other one of the two branched tubes.

Abstract: A low-temperature plasma reactor having an adaptive rotating electrode includes a frame. A reaction tube is arranged inside the frame. A fixing cover is arranged on each of two sides of the frame. The fixing cover defines a through hole communicating with an inside of the reaction tube. The through hole in one of the two sides serves as an air inlet hole, and the through hole in the other one of the two sides serves as an air outlet hole. A rotatable inner electrode is arranged inside the reaction tube, a plurality of groups of discharging needles are arranged on a surface of the inner electrode. A rotating fan is arranged on the inner electrode and is disposed on a side of the air inlet hole. The gas flow drives the inner electrode and the discharging needles to rotate, and a motor drive is not required.

Abstract: A robot having four screw propeller barrels and able to walk on all types of terrains is provided and includes: a housing, wherein each of four corners of the housing is arranged with a driving shaft, four driving shafts are arranged for the four corners and form a rectangle and are connected to a motor, a rotation surface of the driving shaft is parallel to a same vertical surface. An end of the driving shaft is arranged with a connection base, the connection base is arranged with a shaftless motor, an output end of the shaftless motor has a rotation surface perpendicular to the rotation surface of the driving shaft. The output end of the shaftless motor is arranged with a connection bracket, a bottom surface of the connection bracket is arranged with a plurality of connection rings arranged successively along a straight line.

Abstract: A method for predicting impedance of a voltage source converter under variable operating points is disclosed, pertaining to the field of analysis of small signal stability in an electrical power system. When the parameters and topology of the control system are fully unknown, the theoretical expression of impedance cannot be applied to a voltage source converter, and impedance is highly dependent on operating points. A fully decoupled impedance model disclosed is constructed in this disclosure.

Abstract: A method for predicting impedance of a voltage source converter under variable operating points is disclosed, pertaining to the field of analysis of small signal stability in an electrical power system. When the parameters and topology of the control system are fully unknown, the theoretical expression of impedance cannot be applied to a voltage source converter, and impedance is highly dependent on operating points. A fully decoupled impedance model disclosed is constructed in this disclosure.

Abstract: An electron source includes a plurality of electron emission cathodes and at least one control electrode. A gate current regulator is provided for regulation of current flowing through the at least one control electrode.

Abstract: A device for measuring refractive index of medium based on optical delay technology comprises: a signal processing and controlling module, an optical transmitter module, and an optical receiver module, wherein the signal processing and controlling module controls the optical transmitter module to transmit an optical signal having a certain wavelength; the optical signal is injected into a medium to be measured; the optical signal is transmitted and delayed by the medium; the optical receiver module receives the optical signal delayed, and transforms the optical signal delayed into a electrical signal; the electrical signal is amplified and transmitted to the signal processing and controlling module; the signal processing and controlling module measures a delay time between transmitting and receiving the optical signal; and the refractive index of the medium at the certain wavelength is calculated based on the delay time and a known length of the medium.

Abstract: The present invention discloses distributed optical fiber temperature sensor based on optical fiber delay technology, including a tunable optical transmitter module, an optical receiver module, a signal processing and controlling module and multiple distributed sensing modules connected in series via transmission fibers. The multiple wavelengths optical signals transmitted from the tunable optical transmitter module respectively are transmitted into the first sensing module, and then transmitted out from the last sensing module. The output multiple wavelengths optical signals arrive at the optical receiver module. The optical receiver module converts optical signals of all wavelengths into electrical signals and transmits them into the signal processing and controlling module.

Abstract: A device for measuring refractive index of medium based on optical delay technology comprises: a signal processing and controlling module, an optical transmitter module, and an optical receiver module, wherein the signal processing and controlling module controls the optical transmitter module to transmit an optical signal having a certain wavelength; the optical signal is injected into a medium to be measured; the optical signal is transmitted and delayed by the medium; the optical receiver module receives the optical signal delayed, and transforms the optical signal delayed into a electrical signal; the electrical signal is amplified and transmitted to the signal processing and controlling module; the signal processing and controlling module measures a delay time between transmitting and receiving the optical signal; and the refractive index of the medium at the certain wavelength is calculated based on the delay time and a known length of the medium.

Abstract: The present invention discloses distributed optical fiber temperature sensor based on optical fiber delay technology, including a tunable optical transmitter module, an optical receiver module, a signal processing and controlling module and multiple distributed sensing modules connected in series via transmission fibers. The multiple wavelengths optical signals transmitted from the tunable optical transmitter module respectively are transmitted into the first sensing module, and then transmitted out from the last sensing module. The output multiple wavelengths optical signals arrive at the optical receiver module. The optical receiver module converts optical signals of all wavelengths into electrical signals and transmits them into the signal processing and controlling module.

Abstract: An electron source includes a plurality of electron emission cathodes and at least one control electrode. A gate current regulator is provided for regulation of current flowing through the at least one control electrode.

Abstract: Methods, systems, and computer program products for multiplexing computed tomography are disclosed. According to one aspect, the subject matter described herein can include illuminating an object with a plurality of x-ray beams from a plurality of viewing angles, wherein each x-ray beam has a distinct waveform; detecting the x-ray intensities of the plurality of pulsed x-ray beams as a function of time, and extracting individual projection image data from the detected x-ray intensities based on the distinct waveforms of the x-ray beams for combining the projection image data to generate three-dimensional tomographic image data of the object.