Abstract: A bending-resistant low-crosstalk photonic orbital angular momentum (OAM) optical fiber waveguide. An optical fiber sequentially comprises, from the center to the outside, a first core layer (1), a second core layer (2), a first cladding layer (3), a second cladding layer (4), and a third cladding layer (5), wherein the third cladding layer (5) is the thickest, the first core layer (1) is the second thickest, and the first cladding layer (3) is the thinnest; the refractive index of the first cladding layer (3) is the lowest, the refractive index of the second cladding layer (4) is the second lowest, and the refractive index of the second core layer (2) is the highest. The waveguide structure can effectively regulate the output of different OAM modes, and an effective refractive index difference between modes is greater than 2×10?4, the modes are easy to separate, and multiplexing and demultiplexing are facilitated.

Abstract: A bending-resistant low-crosstalk photonic orbital angular momentum (OAM) optical fiber waveguide. An optical fiber sequentially comprises, from the center to the outside, a first core layer (1), a second core layer (2), a first cladding layer (3), a second cladding layer (4), and a third cladding layer (5), wherein the third cladding layer (5) is the thickest, the first core layer (1) is the second thickest, and the first cladding layer (3) is the thinnest; the refractive index of the first cladding layer (3) is the lowest, the refractive index of the second cladding layer (4) is the second lowest, and the refractive index of the second core layer (2) is the highest. The waveguide structure can effectively regulate the output of different OAM modes, and an effective refractive index difference between modes is greater than 2×10?4, the modes are easy to separate, and multiplexing and demultiplexing are facilitated.

Abstract: A docking method for docking a cleaning robot between a plurality of solar panels includes a docking area setting step, an approaching cleaning area step, a docking platform adjustment step, a cleaning robot first control step, and a leaving cleaning area step. The present invention uses a cleaning robot to complete cleaning on the solar panels or a solar panel array, a docking robot to transfer the cleaning robot between the solar panels or multiple solar panel arrays, and a data processing system to realize dispatching and controlling of the cleaning robot and the docking robot, so that a number of cleaning robots and docking robots can be dispatched properly according to a number of the solar panels needing to be cleaned, and a cleaning operation on all solar panels and panel arrays can be completed in a photovoltaic power station in a shortest time.

Abstract: Disclosed are a transfer robot (300) and a cleaning system. The transfer robot (300) comprises a vehicle body (310), a transfer device (320), and an angle adjusting device (330). The cleaning system comprises a cleaning area (500), a cleaning robot (200) and the transfer robot (300). The transfer robot (300) serves as a carrying tool for the cleaning robot (200), and transfers the cleaning robot (200) to a channel area (103) among a plurality of solar panel arrays (101), such that the cleaning robot (200) can complete cleaning work on the different solar panel arrays (101).

Abstract: Provided are an experimental apparatus and method for regulating and controlling the Zeeman transition of magnetic resonance. The method includes: generating a constant background magnetic field by using a magnetic shielding cylinder, a background magnetic field coil, and a constant current source, and controlling a Larmor precession frequency corresponding to the background magnetic field to be equal to a frequency of a sinusoidal signal output by a radio frequency signal source; adjusting the amplitude of a signal output by a radio frequency signal source of a pump-probe atomic magnetometer to set a radio frequency signal to be a ?/2 pulse or a ? pulse; and then controlling the radio frequency signal source to output a series of sinusoidal radio frequency pulse strings having the same initial phase. The Zeeman transition of magnetic resonance is regulated and controlled by adjusting the time interval between the radio frequency pulse signals.

Abstract: An optical fiber with wide bandwidth and high gain in an O+E band and a regulation method thereof are disclosed. The optical fiber includes a core and a cladding (0). The core includes a first loose layer (1), a first core layer (2), a second loose layer (3), a second core layer (4) and an inner core (5) from outside to inside. The first loose layer (1) and the second loose layer (3) are made of a silica material doped with high-refractive-index GeO2 and P2O5. In the first core layer (2) and the second core layer (4), Al2O3, bismuth oxide and PbO are sequentially doped. The gain performance of the optical fiber is controlled by adjusting doping molar ratios of Al2O3, bismuth oxide and PbO. The co-doped silica optical fiber maintains fiber gains exceeding 15 dB in a wavelength range of 1260 to 1460 nm.

Abstract: Embodiments of the present disclosure provide a positioning method and device. The positioning method applied to the first terminal includes: obtaining terminal information of a second terminal with a location service function; and interacting with the second terminal through a direct communication link to obtain location information of the first terminal. In this way, in the embodiments of the present disclosure, even if the first terminal is not in a network coverage area, the second terminal with the location service function may assist the first terminal in positioning.

Abstract: Embodiments of the present disclosure provide a positioning method, an equipment, and a computer-readable storage medium, and related to the technical field of communication. The method includes: receiving a first request, wherein the first request is configured to request position information of a positioned terminal; and simultaneously sending configuration information to the positioned terminal and a target terminal according to the first request, wherein the configuration information is configured to indicate the target terminal to send a positioning reference signal according to the configuration information, and to indicate the positioned terminal to receive the positioning reference signal according to the configuration information, the positioning reference signal is used to locate the positioned terminal.

Abstract: A robot scheduling method. Robots include a cleaning robot for performing cleaning operations in a cleaning region and a conveying robot for transporting the cleaning robot in an aisle region. The robot scheduling method includes a task generating step, a task issuing step, a route planning step, a travel controlling step, and a docking controlling step.

Abstract: The present invention discloses a nucleic acid molecule for encoding a chimeric antigen receptor targeting CD22 and CD19. The chimeric antigen receptor of the present invention can be used for treatment of CD19+ and CD22+ B-cell hematological tumors, as well as combined treatment with CD19 CAR-T cells or CD22 CAR-T cells.

Abstract: A chimeric antigen receptor, comprising an amino acid sequence shown in SEQ ID NO. 1. A nucleic acid encoding the chimeric antigen receptor, a vector comprising the nucleic acid, an immune effector cell comprising the chimeric antigen receptor, the nucleic acid molecule and/or the vector, a method for preparing the immune effector cell, a composition comprising the immune effector cell, and use of the chimeric antigen receptor.

Abstract: A chimeric antigen receptor, comprising an amino acid sequence shown in SEQ ID NO. 1. A nucleic acid encoding the chimeric antigen receptor, a vector comprising the nucleic acid, an immune effector cell comprising the chimeric antigen receptor, the nucleic acid molecule and/or the vector, a method for preparing the immune effector cell, a composition comprising the immune effector cell, and use of the chimeric antigen receptor.

Abstract: A method for arterial endothelial-enhanced functional T cell generation is provided. In the method, arterial endothelial cells enhance functional T cell generation by promoting the generation of hematopoietic progenitor cells with T-lineage bias. The first stage of T cell differentiation from human pluripotent stem cells (hPSCs) is optimized, and it is found that hPSC-derived autologous arterial endothelial cells increase the T cell potential of hematopoietic progenitor cells. Moreover, the T cells generated by arterial endothelial cell priming share similar function to that of human peripheral blood T cells. hPSC-derived CD19-CAR-T cells have been verified to have tumor-killing effects both in vivo and in vitro. The established hPSC-T differentiation system would provide a valuable resource for chimeric antigen receptor T cell (CAR-T) therapy.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for controlling mouth shape changes of a three-dimensional virtual portrait, relating to the field of cloud computing. The method may include: acquiring a to-be-played speech; sliding a preset time window at a preset step length in the to-be-played speech to obtain at least one speech segment; generating, based on the at least one speech segment, a mouth shape control parameter sequence for the to-be-played speech; and controlling, in response to playing the to-be-played speech, a preset mouth shape of the three-dimensional virtual portrait to change based on the mouth shape control parameter sequence.

Abstract: A chimeric antigen receptor, comprising an amino acid sequence shown in SEQ ID NO. 1. A nucleic acid encoding the chimeric antigen receptor, a vector comprising the nucleic acid, an immune effector cell comprising the chimeric antigen receptor, the nucleic acid molecule and/or the vector, a method for preparing the immune effector cell, a composition comprising the immune effector cell, and use of the chimeric antigen receptor.

Abstract: Embodiments of the present disclosure provide a method and apparatus for processing information. A method may include: generating voice response information based on voice information sent by a user; generating a phoneme sequence based on the voice response information; generating mouth movement information based on the phoneme sequence, the mouth movement information being used for controlling a mouth movement of a displayed three-dimensional human image when playing the voice response information; and playing the voice response information, and controlling the mouth movement of the three-dimensional human image based on the mouth movement information.

Abstract: Embodiments of the present disclosure provide a method and apparatus for generating information, and relate to the field of cloud computation. The method may include: receiving a video and an audio of a user from a client; analyzing the video and the audio to determine an intention category of the user; generating feedback information according to the intention category of the user and a preset service information set; generating a video of a pre-established three-dimensional virtual portrait by means of an animation engine based on the feedback information; and transmitting the video of the three-dimensional virtual portrait to the client, for the client to present to the user.

Abstract: Embodiments of the present disclosure provide a method and apparatus for generating an animation. A method may include: extracting an audio feature from target speech segment by segment, to aggregate the audio feature into an audio feature sequence composed of an audio feature of each speech segment; inputting the audio feature sequence into a pre-trained mouth-shape information prediction model, to obtain a mouth-shape information sequence corresponding to the audio feature sequence; generating, for mouth-shape information in the mouth-shape information sequence, a face image including a mouth-shape object indicated by the mouth-shape information; and using the generated face image as a key frame of a facial animation, to generate the facial animation.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for controlling mouth shape changes of a three-dimensional virtual portrait, relating to the field of cloud computing. The method may include: acquiring a to-be-played speech; sliding a preset time window at a preset step length in the to-be-played speech to obtain at least one speech segment; generating, based on the at least one speech segment, a mouth shape control parameter sequence for the to-be-played speech; and controlling, in response to playing the to-be-played speech, a preset mouth shape of the three-dimensional virtual portrait to change based on the mouth shape control parameter sequence.

Abstract: Embodiments of the present disclosure provide a method and apparatus for generating information, and relate to the field of cloud computation. The method may include: receiving a video and an audio of a user from a client; analyzing the video and the audio to determine an intention category of the user; generating feedback information according to the intention category of the user and a preset service information set; generating a video of a pre-established three-dimensional virtual portrait by means of an animation engine based on the feedback information; and transmitting the video of the three-dimensional virtual portrait to the client, for the client to present to the user.