Abstract: The present invention discloses a LiDAR multifaceted rotating prism comprising an inner core (1); a cladding layer (2) connected to the outer surface of the inner core, wherein the cladding layer is a polygonal prism rotationally symmetric about the central axis of the inner core; and an optical film (3) coated on the outer surface of the cladding layer.

Abstract: A steerable drilling device has an outer tube extending along a longitudinal axis; a drill bit joint inserted into said outer tube, a lower end of said drill bit joint extending out of a lower end of said outer tube for connection to a drill bit; a joint drive mechanism, provided in said outer tube and configured to drive said drill bit joint to swing relative to the longitudinal axis; and a lower connection mechanism. The lower connection mechanism has a connection body connected to said joint drive mechanism in such a manner that said joint drive mechanism is non-rotatable with respect to said connection body, a first centralizer arranged between said connection body and said outer tube, a circuit system arranged in said connection body and configured to provide an electrical signal to said joint driving mechanism, and an attitude sensor arranged in said connection body.

Abstract: The present disclosure discloses a coupling device for photoelectric conversion and a laser radar. The device comprise a light receiving lens, a detector, and a coupling device provided between the light receiving lens and the detector, wherein the coupling device comprises an optical fiber and a lens group arranged coaxially with each other, the optical fiber is arranged near an end with the receiving lens, and the lens group is arranged near the other end with the detector; and the light receiving lens is configured to converge the signal light reflected by a target reflector and couple the converged signal light into an optical fiber, the lens group is configured to receive the signal light output from the optical fiber, and the detector is configured to receive the signal light that passes through the lens group and perform photoelectric conversion on the received signal light.

Abstract: A service transmission method and apparatus, a sender and a storage medium are disclosed. The service transmission method, applied to at a sender, may include: preempting, by one transmission entity, a transmission opportunity of another transmission entity to perform service transmission.

Abstract: An industrial system includes a plurality of machines that define respective hardware and automation functions associated with the hardware. The industrial system further includes an engineering module hosted within the industrial system, and an application programming interface (API) communicatively coupled to the engineering module. The industrial system can further include a web application communicatively coupled to the engineering module via the API. A computing device can be configured to access the engineering module via the web application and the API, and the engineering module can be configured to configure the plurality of machines based on instructions received by the web application.

Abstract: A compact LiDAR device is provided. The compact LiDAR device includes a first mirror disposed to receive one or more light beams and a polygon mirror optically coupled to the first mirror. The polygon mirror comprises a plurality of reflective facets. For at least two of the plurality of reflective facets, each reflective facet is arranged such that: a first edge, a second edge, and a third edge of the reflective facet correspond to a first line, a second line, and a third line; the first line and the second line intersect to form a first internal angle of a plane comprising the reflective facet; and the first line and the third line intersect to form a second internal angle of the plane comprising the reflective facet. The first internal angle is an acute angle; and the second internal angle is an obtuse angle.

Abstract: The present disclosure provides the use of BAZ1B_K426hy in the preparation of a product for tumor detection and belongs to the field of biotechnology. The present disclosure further provides a group of immunogenic polypeptides, including polypeptide A and polypeptide B. An anti-BAZ1B_K426hy polyclonal antibody is prepared by conducting mixed immunization on an animal with the immunogenic polypeptide. The polyclonal antibody can specifically recognize an endogenous protein BAZ1B_K426hy by enzyme-linked immunosorbent assay (ELISA)/Dot blot/Western blot, which is used for preparation of detection products for tumors and Williams syndrome.

Abstract: A mechanical ventilator closed loop control system, methods, and apparatus are disclosed. In an example, a mechanical ventilator performs a respiratory treatment for a patient according to respiratory treatment settings, which include at least one ventilation mode. During the treatment, the mechanical ventilator receives and/or determines physiological parameter values from one or more physiological sensors. The physiological parameters may be patient neurological parameters, metabolic parameters, circulatory parameters, and/or respiratory parameters. The mechanical ventilator uses one or more closed loop control algorithms and the physiological parameter values to determine at least some of the respiratory treatment settings and/or the ventilation mode is to be adjusted. After making the determination, the mechanical ventilator adjusts the respiratory treatment so that the treatment reflects a current health status of the patient.

Abstract: The present disclosure provides a construction method of a risk prediction model for a prognosis of gastric cancer, and belongs to the technical field of biomedicine. In the present disclosure, from the perspective of bioinformatics analysis, it is predicted that gastric cancer exosomes carry circRNAs. Markers regulating the occurrence and development of gastric cancer are selected by combining the circRNAs with an RNA binding protein (RBP). A predictive marker for the prognosis of gastric cancer is an RPB gene, including one or more of AUH, HNRNPC, HNRNPD, U2AF2, and FXR1. The risk prediction model constructed based on the predictive marker can quickly and accurately predict the prognosis of patients with gastric cancer.

Abstract: In accordance with some embodiments, a light detection and ranging (LiDAR) system comprises: a control system housing; a first LiDAR head housing separate and distinct from the control system housing; a light source within the control system housing, the light source configured to produce a first pulse signal; a light detector within the control system housing configured to detect a first return pulse signal associated with the pulse signal; a first pulse steering system within the first LiDAR head housing, the first pulse steering system configured to direct the first pulse signal in a first direction; a first fiber configured to carry the first pulse signal from the light source to the first pulse steering system; and a second fiber configured to carry a first returned pulse signal from the first LiDAR head housing to the light detector.

Abstract: A system for light ranging and detection (LiDAR) is disclosed herein. The system comprises a laser transmitter transmitting one or more channels of light pulses. A rotating polygon mirror having a plurality of reflective facets directs the one or more channels of light pulses from the laser transmitter through a transmission region at a top surface of the system toward an external field of view and receives reflected light from the external field of view illuminated by the one or more channels of light pulses. A receiver detects the reflected light from channels corresponding to the one or more channels of light pulses. The laser transmitter, the rotating polygon mirror, and the receiver are substantially coplanar on a plane parallel to the top surface.

Abstract: A compact LiDAR device is provided. The compact LiDAR device includes a first mirror disposed to receive one or more light beams and a polygon mirror optically coupled to the first mirror. The polygon mirror comprises a plurality of reflective facets. For at least two of the plurality of reflective facets, each reflective facet is arranged such that: a first edge, a second edge, and a third edge of the reflective facet correspond to a first line, a second line, and a third line; the first line and the second line intersect to form a first internal angle of a plane comprising the reflective facet; and the first line and the third line intersect to form a second internal angle of the plane comprising the reflective facet. The first internal angle is an acute angle; and the second internal angle is an obtuse angle.

Abstract: Provided are a link establishment method and apparatus and a computer-readable storage medium. The link establishment method includes: exchanging optical link auto-negotiation information with a terminal device through an optical link auto-negotiation channel; and in a case where exchanging the optical link auto-negotiation information is finished, establishing at least one of a traffic data channel or an optical link auto-negotiation channel; where the optical link auto-negotiation channel is independent of the traffic data channel or the optical link auto-negotiation channel; and the optical link auto-negotiation information includes at least one of information about an operating wavelength channel of the terminal device, an enabled or disabled state of forward error correction with the terminal device, a forward error correction type with the terminal device, or an operating mode of the auxiliary management channel.

Abstract: A LiDAR system having two-dimensional transmitter array is provided. The LiDAR system comprises a light scanner, and a plurality of transmitter groups optically couplable to the light scanner. Each transmitter group of the plurality of transmitter groups comprises a plurality of transmitters. At least two transmitter groups of the plurality of transmitter groups are disposed at different positions with respect to the light scanner, such that scanning areas corresponding to the at least two transmitter groups are different. The LiDAR further comprises a control device configured to selectively control one or more of the plurality of transmitter groups to emit transmission beams toward the light scanner. The light scanner is configured to steer the transmission beams both vertically and horizontally to a field-of-view (FOV), and receive return light formed based on the steered transmission beams.

Abstract: The present disclosure provides the use of BAZ1B_K426hy in the preparation of a product for tumor detection and belongs to the field of biotechnology. The present disclosure further provides a group of immunogenic polypeptides, including polypeptide A and polypeptide B. An anti-BAZ1B_K426hy polyclonal antibody is prepared by conducting mixed immunization on an animal with the immunogenic polypeptide. The polyclonal antibody can specifically recognize an endogenous protein BAZ1B_K426hy by enzyme-linked immunosorbent assay (ELISA)/Dot blot/Western blot, which is used for preparation of detection products for tumors and Williams syndrome.

Abstract: A laser device for providing light to a LiDAR system comprises a plurality of seed lasers configured to provide multiple seed light beams, at least two of the seed light beams having different wavelengths. An amplifier is optically coupled to the plurality of seed lasers to receive the multiple seed light beams. A power pump is configured to provide pump power to the amplifier, where the amplifier amplifies the multiple seed light beams using the pump power to obtain amplified light beams. A second light coupling unit is configured to demultiplex the amplified light beams to obtain a plurality of output light beams, at least two of the output light beams having wavelengths corresponding to the wavelengths of the at least two seed light beams.

Abstract: Embodiments discussed herein refer to LiDAR systems and methods that monitor for fault conditions that could potentially result in unsafe operation of a laser. The systems and methods can monitor for faulty conditions involving a transmitter system and movement of mirrors in a scanning system. When a fault condition is monitored, a shutdown command is sent to the transmitter system to cease laser transmission. The timing by which the laser should cease transmission is critical in preventing unsafe laser exposure, and embodiments discussed herein enable fault detection and laser shutoff to comply with laser safety standards.

Abstract: A LiDAR system having two-dimensional transmitter array is provided. The LiDAR system comprises a light scanner, and a plurality of transmitter groups optically couplable to the light scanner. Each transmitter group of the plurality of transmitter groups comprises a plurality of transmitters. At least two transmitter groups of the plurality of transmitter groups are disposed at different positions with respect to the light scanner, such that scanning areas corresponding to the at least two transmitter groups are different. The LiDAR further comprises a control device configured to selectively control one or more of the plurality of transmitter groups to emit transmission beams toward the light scanner. The light scanner is configured to steer the transmission beams both vertically and horizontally to a field-of-view (FOV), and receive return light formed based on the steered transmission beams.

Abstract: A laser device for providing light to a LiDAR system comprises a plurality of seed lasers configured to provide multiple seed light beams, at least two of the seed light beams having different wavelengths. An amplifier is optically coupled to the plurality of seed lasers to receive the multiple seed light beams. A power pump is configured to provide pump power to the amplifier, where the amplifier amplifies the multiple seed light beams using the pump power to obtain amplified light beams. A second light coupling unit is configured to demultiplex the amplified light beams to obtain a plurality of output light beams, at least two of the output light beams having wavelengths corresponding to the wavelengths of the at least two seed light beams.

Abstract: The present disclosure provides the use of BAZ1B_K426hy in the preparation of a product for tumor detection and belongs to the field of biotechnology. The present disclosure further provides a group of immunogenic polypeptides, including polypeptide A and polypeptide B. An anti-BAZ1B_K426hy polyclonal antibody is prepared by conducting mixed immunization on an animal with the immunogenic polypeptide. The polyclonal antibody can specifically recognize an endogenous protein BAZ1B_K426hy by enzyme-linked immunosorbent assay (ELISA)/Dot blot/Western blot, which is used for preparation of detection products for tumors and Williams syndrome.