Abstract: This application provides a channel state information (CSI) feedback method including: a communication apparatus receives first indication information, wherein the first indication information is determined based on a received precoded reference signal corresponds to P reference signal ports; the first indication information indicates B complex coefficients determined from K complex coefficients according to a preset priority value, the K complex coefficients are determined from a complex coefficient set comprising U complex coefficients that are determined for an sth reference signal port in S reference signal ports at each transport layer of Z transport layers, the S reference signal ports are a part or all of the P reference signal ports, the U complex coefficients are a part or all of Ts complex coefficients corresponding to the sth reference signal port; and determines a precoding matrix based on the first indication information.

Abstract: Apparatuses (e.g., devices, systems, etc.) and methods that may provide access to one or more tools to a remote site in the body including expandable and external working channels that may be part of a tube that is coupled to an outer surface of an elongate medical device, such as an endoscope.

Abstract: Embodiments of this application provide a channel state information (CSI) reporting method and a communications apparatus. In the method, a receiving device obtains first CSI and second CSI, and determines reference information based on the first CSI and the second CSI. The first CSI is correlated with the second CSI, the reference information includes first quantization information including projection quantization information of a common subspace and second quantization information including projection quantization information of a first non-common subspace, the common subspace includes an intersection of a first space used to quantize the first CSI and a second space used to quantize the second CSI, and the first non-common subspace includes a subspace other than the common subspace in the first space. The receiving device sends the reference information to a sending device, and the sending device determines the first CSI based on the reference information and the second CSI.

Abstract: An identifier can indicate whether local protection is allowed is added to a packet. In a process in which a packet that carries a protection flag is transmitted along a primary path, if a node along the path determines that the primary path is faulty, but the protection flag indicates that local switching to a protection path is not allowed, the node along the path does not perform local protection, so that the packet is not switched by the node along the path to the protection path. This prevents the packet from passing through a protection path with the node along the path as an ingress when the primary path is faulty, helps traffic on the primary path to be switched to an end-to-end protection path in time, and helps a packet sending side to switch the traffic on the primary path to the end-to-end protection path in time.

Abstract: Method, system, medium, and implementation for robot-guided instrument insertion. A preplanned path between a three-dimensional (3D) entry pose on skin of a patient to a 3D pose of a target is generated for a surgery with a target inside the patient. The preplanned path is used by a robot as guidance to insert a surgical instrument from the 3D entry pose to reach the 3D pose of the target. During the surgery, a next pose is determined based on a current pose of the surgical instrument and the preplanned path as well as spatial relationship to surrounding anatomical structures and is used to move the surgical instrument thereto. An updated current pose of the instrument is then obtained via tracking when the robot is advancing the surgical instrument to the next pose. The process repeats until the instrument reaches the target pose.

Abstract: The present teaching relates to automated trocar/robot base location determination. An input related to a surgical operation includes a three-dimensional (3D) model for an organ with cut points on the organ forming a surgical trajectory. A surgical instrument is controlled by a robot to reach the cut points to carry out the operation. An insertion location for inserting the surgical instrument is identified. Based on the identified insertion location, a robot base location is determined with respect to the identified insertion location to deploy the robot for controlling the surgical instrument to reach the cut points. Signals for configuring the surgical setting are then generated based on the insertion location for the surgical instrument and the base location for the robot.

Abstract: A restructurable hybrid-wing VTOL aircraft includes a fuselage, two wings, two canard wings and a cabin door. The two wings are provided to opposite sides of the fuselage. Each the wing is provided vertically and symmetrically by two rotary wing modules, and thus an H configuration to the fuselage can be formed. While the lower rotary wing module rotates to align the corresponding wing, a change of relative position with respect to the upper rotary wing module can be generated. Through the rotation of the lower rotary wing module, the vertical surface thereof would be transformed into a lift surface for enlarging the aspect ratio of the wing to improve the corresponding lift-drag ratio. Thereupon, a disadvantage of hyper flight-directional stability to the H-configured tail seat-type aircraft caused by the vertical area of the aircraft can be reduced, and so the tail-seat type aircraft can slide to emergency land.

Abstract: This application provides a stiffener ring and a surface packaging assembly. The stiffener ring is configured to correct warpage of a substrate of the surface packaging assembly. The stiffener ring includes an annular stiffener ring body and an adjustment block that is disposed at a same layer as the stiffener ring body and that is fastened to at least one corner of the stiffener ring body. A coefficient of thermal expansion of the adjustment block is less than a coefficient of thermal expansion of the stiffener ring body. Coordination between the adjustment block and the stiffener ring body alleviates an “M-shape” overpressure phenomenon of a warpage deformation caused by the stiffener ring to the substrate at a high temperature, reduces warpage of the substrate, and improves flatness of the surface packaging assembly.

Abstract: A mask instrument includes a flexible mask and a controller. The flexible mask includes a first flexible layer, a second flexible layer, a plurality of functional layers located between the first flexible layer and the second flexible layer, and a plurality of electrodes electrically connected with the plurality of functional layers. The flexible mask is electrically coupled with the controller via the plurality of electrodes. The second flexible layer comprises at least one hole at a position corresponding to the plurality functional layers, and at least one portion of the plurality of functional layer is exposed out of the second flexible layer from the at least one hole. A method for using the mask instrument is further provided.

Abstract: This application provides a channel state information (CSI) feedback method including: a terminal device selects B complex coefficients from K complex coefficients according to a preset priority rule, and provides feedback, where K is a quantity of complex coefficients that the terminal device is allowed to feed back, and the preset priority rule is related to at least one of the following: an index value of each complex coefficient in the K complex coefficients, an index value of a reference signal port corresponding to each complex coefficient in the K complex coefficients in S reference signal ports, or an index value of each complex coefficient in the K complex coefficients in a plurality of complex coefficients that are allowed to be selected for a corresponding reference signal port, where S is a quantity of reference signal ports that the terminal device is allowed to select.

Abstract: Method and system for estimating 3D camera pose based on 2D features. 3D virtual camera poses are generated, each of which is used to determine a perspective to project a 3D model of a target organ to create a 2D image of the target organ. 2D features are extracted from each 2D image and paired with the corresponding 3D virtual camera pose to represent a mapping. A 2D feature-camera pose mapping model is obtained based on the pairs. Input 2D features extracted from a real-time 2D image of the target organ are used to map, via the 2D feature-camera pose mapping model, to a 3D pose estimate of a laparoscopic camera, which is then refined to derive an estimated 3D camera pose of the laparoscopic camera via differential rendering of the 3D model with respect to the 3D pose estimate.

Abstract: In some implementations, an optical component includes a substrate component; and a plurality of mirrors disposed on a top surface of the substrate component in a single, horizontal plane, wherein each mirror, of the plurality of mirrors, is angled, non-orthogonally, with respect to the single, horizontal plane, such that each optical path associated with each mirror is disposed in a corresponding tilted plane that is non-parallel with the single, horizontal plane.

Abstract: A bispecific antibody targeting both CD40 and CLDN18.2, a pharmaceutical composition comprising same, an application thereof for treating related diseases, and a treatment method are provided. The bispecific antibody targeting both CD40 and CLDN18.2 comprises (i) an anti-CD40 antibody or a fragment thereof and (ii) an anti-CLDN18.2 antibody or a fragment thereof.

Abstract: Apparatuses (e.g., devices, systems, etc.) and methods that may provide access to one or more tools to a remote site in the body including expandable and external working channels that may be part of a tube that is coupled to an outer surface of an elongate medical device, such as an endoscope.

Abstract: A method and system for automated and semi-automated predictable, consistent, safe, effective, and lumen-specific and patient-specific cryospray treatment of airway tissue in which treatment duration is automatically set by the system following entry of patient information and treatment location information into the system by the user, and treatment spray is automatically stopped by the system when the automatically selected treatment duration has been achieved as determined by the system.

Abstract: A semiconductor laser may include an off-cut substrate having a cut angle of at least approximately 6 degrees (°). The semiconductor laser may include an epitaxial structure over the off-cut substrate. A first sidewall formed by the off-cut substrate and the epitaxial structure may be parallel to a second sidewall formed by the off-cut substrate and the epitaxial structure. A front facet formed by the off-cut substrate and the epitaxial structure may be parallel to a back facet formed by the off-cut substrate and the epitaxial structure. The cut angle of the off-cut substrate may cause the first sidewall to be non-perpendicular to epitaxial layers of the epitaxial structure. The cut angle of the off-cut substrate may cause the second sidewall to be non-perpendicular to the epitaxial layers of the epitaxial structure.

Abstract: This application discloses a route selection method and a related device. A control entity determines first metric information of a first segment routing (SR) path, generates a first border gateway protocol (BGP) update message including the first metric information, and sends the first BGP update message to an ingress node of the first SR path, where the first metric information represents quality of the first SR path, the first metric information is used for route selection on a plurality of paths, each of the plurality of paths has a same IP prefix of a destination node, and the plurality of paths include the first SR path. According to the method, the control entity can send, to the ingress node of the SR path by using the BGP update message, the metric information that represents the quality of the SR path.

Abstract: A mask with sterilization function is provided. The mask comprises two straps, a mask body, a functional layer, a first electrode, a second electrode, and a power inlet. The functional layer, the first electrode and the second electrode located in the mask body. The first electrode and the second electrode are located on a surface of the functional layer and are electrically connected to the power inlet. The first electrode and the second electrode are configured to input a current to the functional layer to heat the functional layer. The functional layer is a conductive layer and comprises a plurality of micropores.

Abstract: The present teaching relates to automated generation of a surgical tool-based visual guide. Two-dimensional (2D) images capturing anatomical structures and a surgical instrument therein are provided during a surgery. The type and pose of a tool attached to the surgical instrument are detected based on the 2D images. Focused information is determined based on the type and pose of the detected tool and is used to generate a visual guide to assist a user to perform a surgical task using the tool.

Abstract: The present teaching relates to automatic surgical tool based model fusion. Two-dimensional (2D) images are received, capturing a surgical instrument. A 2D location of a surgical tool attached to the instrument is detected. Specific type of focused information for is determined based on the surgical tool for assisting a surgical task using the surgical tool. 2D/3D corresponding focused regions are identified via model fusion. A visual guide is created based on the type of focused information from the 3D focused region of a 3D model for an organ and surrounding anatomical structures by projecting it onto the 2D focused region.