Abstract: A system and a method for generating an arbitrary waveform of a microwave photon based on optical frequency tuning are provided. The system includes an optical frequency comb, a first optical distribution unit, a first photoelectric conversion unit, a frequency-shift drive circuit, and an optical frequency doubling/dividing unit, an optical frequency-shift combining optical circuit, a second photoelectric conversion unit, and a second electrical processing circuit. The optical frequency comb is used as the frequency source, with the features of high stability and low phase noise of the optical frequency comb, the arbitrary waveforms of microwave photons can be generated through optical frequency tuning control; the performance of the optical frequency comb is three orders of magnitude or more higher than that of the common microwave frequency sources, therefore, the waveforms with high-frequency, ultra-wideband, low phase noise, and high stability can be generated.

Abstract: The present disclosure provides a method and device for intelligent control of heating furnace combustion based on a big data cloud platform, which relates to the technical field of artificial intelligence control. The method includes: construction of big data cloud platform based on production and operation parameters of the heating furnace; identification of key factors in the production process of the heating furnace by using big data mining technology; independent deployment of traditional heating furnace combustion control systems based on the mechanism model; and integration of cloud platform big data expert knowledge base and the heating furnace combustion intelligent control system.

Abstract: A photographing method and an electronic device are provided. The method includes: receiving a first input; starting first photographing in response to the first input; receiving a second input; and in response to the second input, starting second photographing in a case that it is determined that a photographing application obtains target image data of the first photographing from an operating system, and processing the target image data by using a first preset algorithm, to obtain a first processing result. The target image data is initial image data outputted through a sensor of a camera, or target image data is image data outputted after format conversion is performed on the initial image data. The first preset algorithm is an algorithm corresponding to the target image data. The method further includes performing encoding based on the first processing result to obtain a first photographic image.

Abstract: A photographing method and apparatus and an electronic device, and relates to the technical field of electronic devices are provided. The method includes: receiving a first photographing request instruction input by a user; performing image processing on at least one captured first original image in response to the first photographing request instruction; receiving, within a target duration, a second photographing request instruction input by the user, where the target duration is a duration for performing image processing on the at least one first original image; and performing image processing on at least one captured second original image in response to the second photographing request instruction.

Abstract: The present disclosure discloses an MXene-based terahertz wave broadband super-strong absorbing foam, and belongs to the technical field of electromagnetic functional materials. The MXene-based terahertz wave broadband super-strong absorbing foam includes a porous polymer foam and a MXene nanosheet attached onto the porous polymer foam, wherein the MXene nanosheet is attached onto the porous polymer foam in a coating form, a film forming form and a suspension form; the average pore diameter of the porous polymer foam ?500 ?m, the thickness of the porous polymer foam ?10 mm, and the filling mass of the MXene nanosheet is less than 50% of the mass of the absorbing foam.

Abstract: The present disclosure is directed to freestanding films for a lithium-metal-anode comprising a 2D arrays of nanocrystals of a transition metal nitride, carbide, or mixture and optionally a MXene as a conductive binder, and methods of making and using the same.

Abstract: This disclosure is directed to composites comprising a polymeric film coated on one or both sides with a MXene material, as well as lithium metal electrodes and components thereof, including MXene-polymer composite separators.

Abstract: The present disclosure relates to the methods of preparing two-dimensional arrays of nanocrystalline metal carbide and metal nitride compositions and the compositions and devices derived from these methods and compositions.

Abstract: The present disclosure discloses an MXene-based terahertz wave broadband super-strong absorbing foam, and belongs to the technical field of electromagnetic functional materials. The MXene-based terahertz wave broadband super-strong absorbing foam includes a porous polymer foam and a MXene nanosheet attached onto the porous polymer foam, wherein the MXene nanosheet is attached onto the porous polymer foam in a coating form, a film forming form and a suspension form; the average pore diameter of the porous polymer foam ?500 ?m, the thickness of the porous polymer foam ?10 mm, and the filling mass of the MXene nanosheet is less than 50% of the mass of the absorbing foam.

Abstract: Techniques for modifying the Josephson potential of a transmon qubit by shunting the transmon with an inductance are described. The inclusion of this inductance may increase the confined potential of the qubit system compared with the conventional transmon, which may lead to a transmon qubit that is stable at much higher drive energies. The inductive shunt may serve the purpose of blocking some or all phase-slips between the electrodes of the qubit. As a result, the inductively shunted transmon may offer an advantage over conventional devices when used for applications involving high energy drives, whilst offering few to no drawbacks in comparison to conventional devices when used at lower drive energies.

Abstract: A method, a device, and a system for parking a truck accurately in a shore crane area are provided. A vehicle controller transmits a parking request for a truck to be parked. A main controller receives the parking request and acquires real-time point cloud data by scanning one or more lanes crossed by a shore crane using one or more LiDARs. The main controller clusters the real-time point cloud data to obtain a set of point clouds for the truck and applies an Iterative Closest Point algorithm to the set of point clouds and a vehicle point cloud model to obtain a real-time distance from the truck to a target parking space. The vehicle controller controls the truck to stop at the target parking space based on the real-time distance.

Abstract: Techniques for modifying the Josephson potential of a transmon qubit by shunting the transmon with an inductance are described. The inclusion of this inductance may increase the confined potential of the qubit system compared with the conventional transmon, which may lead to a transmon qubit that is stable at much higher drive energies. The inductive shunt may serve the purpose of blocking some or all phase-slips between the electrodes of the qubit. As a result, the inductively shunted transmon may offer an advantage over conventional devices when used for applications involving high energy drives, whilst offering few to no drawbacks in comparison to conventional devices when used at lower drive energies.

Abstract: Techniques for modifying the Josephson potential of a transmon qubit by shunting the transmon with an inductance are described. The inclusion of this inductance may increase the confined potential of the qubit system compared with the conventional transmon, which may lead to a transmon qubit that is stable at much higher drive energies. The inductive shunt may serve the purpose of blocking some or all phase-slips between the electrodes of the qubit. As a result, the inductively shunted transmon may offer an advantage over conventional devices when used for applications involving high energy drives, whilst offering few to no drawbacks in comparison to conventional devices when used at lower drive energies.

Abstract: A method of producing polyester filaments by heat drawing with hot tubes comprising shaping by lateral blowing of air the polyester melt extruded through the spinneret; passing the cooled as-spun fibers into hot tubes and heat drawing them; obtaining polyester filaments after the procedures of bundling, oiling, entangling, winding and the like, wherein the hot tube temperature is 80-200° C. and the winding speed is 2500-5300 m/min. The heated hot tube for drawing consists of an internal tube assembly and an electromagnetic induction heating element. The latter is a coil of high temperature resistant metal wire wound on the external wall of the internal tube. In the coil a current is passed, which is controlled by a temperature control circuit of a single return circuit.