Abstract: A use of one or more lipid compounds in the delivery of nucleic acids, and a lipid nucleic acid mixture, pharmaceutical composition or kit comprising the lipid compounds and nucleic acids. The lipid compounds provided above can promote the absorption, particularly oral absorption, of nucleic acids, and promote the entry of nucleic acids into target sites in a subject in need thereof.

Abstract: A vehicular headlamp adjustment device is provided which comprises a housing, and a motor assembly, a dual gear, a gear disk and an inner sleeve tube; a ball head ejector rod is helically assembled in the inner sleeve tube, and the motor assembly runs through a dual gear to drive the gear disk to rotate; the housing further comprises an outer sleeve tube. One end of the outer sleeve tube is rotatably connected to the housing, and the other end clamped and matched with the ball head ejector rod. When manually rotating the outer sleeve tube, the ball head ejector rod rotates with it; due to spiral fit between the ball head ejector rod and the inner sleeve tube, and the relative sliding between the outer sleeve tube and the ball head ejector rod, the ball head ejector rod expands and contracts axially under the action of the spiral structure.

Abstract: The present disclosure discloses a method and system for recognizing human action in an apron based on thermal infrared vision, the method comprises: acquiring a plurality of video sequences from an infrared monitoring video; labeling a set target in each image frame in each video sequence with a target box to obtain a target tracking result; intercepting, for each image frame in the video sequence, a target-box enlarged area according to the labeled target box; adding, for each image frame in the video sequence, the position information of the image labeled with target box to the target-box enlarged area to obtain a three-channel sub-image; training an action recognition model by using three-channel sub-image sequences corresponding to a plurality of video sequences as a training set, to obtain a trained action recognition model; obtaining a to-be-recognized video sequence from another infrared monitoring video, and obtaining a three-channel sub-image sequence corresponding to the to-be-recognized video sequ

Abstract: A razor blade has a first and a second portion. The first portion has a cutting edge at an exterior end and is angled relative to the second portion by a bending process. A bent region that can be arcuate is intermediate the first and second portions. The razor blade is manufactured from martensitic stainless steel being mostly iron and having (by weight): 0.40 to 0.60% C; 0.30 to 0.55% Si; 0.70 to 0.90% Mn; 13.0 to 14.0% Cr; 0.50 to 1.0% Mo; and 0.03 to 0.2%, more preferably 0.03-0.1% N.

Abstract: A surgical exercise performed with a surgical robotic system is sensed by depth cameras, generating 3D point cloud data. Robot system data associated with the surgical robotic system is logged. Object recognition is performed on image data produced by the one or more depth cameras, to recognized objects, including surgical equipment and people, in the operating room (OR). The surgical exercise is digitized by storing the 3D point cloud data of unrecognized objects, a position and orientation associated with the recognized objects, and c) the robot system data.

Abstract: The present disclosure relates to the technical field of die casting machine devices, in particular to a digital die casting machine with mold temperature control, including: a die casting machine configured to die-cast a casting through a mold, a cooling flow control apparatus configured to control a mold temperature by controlling a cooling medium flow, a temperature collection apparatus configured to collect the mold temperature, a control cabinet configured to acquire and store data collected by the temperature collection apparatus and control operation of the die casting machine, the cooling flow control apparatus and an automatic control apparatus, an edge computer configured to execute a die casting temperature optimization strategy according to the collected data stored in the control cabinet, and the automatic control apparatus. The present disclosure improves the molding quality of castings by adjusting the mold temperature in a casting process.

Abstract: The present disclosure belongs to the field of computational hydraulics and aims at providing a construction method and system for a hydrodynamic joint computation model, a device, and a medium.

Abstract: A system for distributed phased array multiple input multiple output (DPA-MIMO) communications is disclosed. The system includes beamforming (BF) modules. Each BF module comprises a beamforming antenna, a downconverter that downconverts a beamformed antenna radio frequency signal to an intermediate frequency signal, and an upconverter that upconverts an intermediate frequency signal to a radio frequency signal and sends said radio frequency signal to said beamforming antenna for transmission. The system further includes intermediate frequency (IF) radios. Each IF radio comprises a downconverter that downconverts an intermediate frequency signal sent from a BF module to a baseband signal, and an upconverter that upconverts said baseband signal to an intermediate frequency signal that is transmitted to a beamforming module.

Abstract: The present invention relates to the technical field of processing of degradable materials, and in particular relates to a granulation processing method for a degradable material and a formed body prepared thereby. The method comprises: after a polyhydroxyalkanoate powder is melted, pre-crystallizing same at a temperature of 20-60° C. below the Tm of polyhydroxyalkanoate, and then extruding, crystallizing and granulating same. In the granulation processing method of the present invention, pre-crystallization is performed at a temperature of 20-60° C. below the Tm of polyhydroxyalkanoate, followed by extrusion, such that the crystallization speed can be accelerated online, non-sticky particles can be quickly obtained and the crystallization time is greatly shortened under the condition that no auxiliary agent is added, thereby facilitating transportation and subsequent processing.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a parameter associated with a secondary cell group. The UE may perform an optimization response action for a dual connectivity mode of a first frequency parameter or a second frequency parameter when the parameter satisfies a threshold, wherein the optimization response action is associated with whether the secondary cell group is operating with the first frequency parameter or the second frequency parameter. Numerous other aspects are described.

Abstract: Disclosed are various real-time robotic-assisted dimension measurement systems and techniques based on the collected kinematic data from one or more surgical tools within a robotic surgical system. In some embodiments, the collected kinematic data can include positions and orientations of each joint of the one or more surgical tools which are derived from positions and orientations of a set of arm joints of one or more robotic arms which the one or more surgical tools are attached to. The disclosed dimension measurement systems allow a surgeon to perform real-time length measurements of both straight-lines and curved-lines, as well as area and volume measurements on specified portions of tissues or organs by strategically placing the tips of the one or more surgical tools over the tissues or organs, while viewing the distal ends of the surgical tools in a user display.

Abstract: A series of images is obtained from an endoscope. Three-dimensional reconstruction is performed on the series of images to reconstruct anatomy shown in the series of images. A graphic, such as a grid, is rendered based on the three-dimensional reconstruction, over the series of images resulting in an enhanced endoscopic video feed to be shown on a display.

Abstract: For control about a remote center of motion (RCM) of a surgical robotic system, possible configurations of a robotic manipulator are searched to find the configuration providing a greatest overlap of the workspace of the surgical instrument with the target anatomy. The force at the RCM may be measured, such as with one or more sensors on the cannula or in an adaptor connecting the robotic manipulator to the cannula. The measured force is used to determine a change in the RCM to minimize the force exerted on the patient at the RCM. Given this change, the configuration of the robotic manipulator may be dynamically updated. Various aspects of this RCM control may be used alone or in combination, such as to optimize the alignment of workspace to the target anatomy, to minimize force at the RCM, and/or to dynamically control the robotic manipulator configuration based on workspace alignment and force measurement.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may disconnect from a first radio access technology (RAT) service, independent of signaling from the first RAT service, after sensing that the UE has entered a coverage hole. The UE may use a connection to a second RAT service while in the coverage hole in association with disconnecting from the first RAT service. The UE may disconnect from the second RAT service, independent of signaling from the second RAT service, after sensing that the UE has exited the coverage hole and before expiration of a radio link failure (RLF) timer for the second RAT service. The UE may reconnect to the first RAT service before expiration of an RLF timer for the first RAT service. Numerous other aspects are described.

Abstract: Embodiments described herein provide systems and techniques for detecting hospital bed occupancy based on three-dimensional (3D) point clouds of the hospital bed extracted from depth images. In one aspect, a process for determining if a bed inside an operating room (OR) is occupied by a patient is disclosed. This process begins by receiving a 3D point cloud of a bed object within a depth image captured inside the OR. The process then segments the 3D point cloud of the bed object into a plurality of segments in both a length direction and a width direction of the bed object. Next, the process extracts a set of geometric features from the plurality of segments. The process subsequently applies a binary classifier to the set of geometric features to classify the bed object as either being occupied by a patient or not being occupied by a patient.

Abstract: The present disclosure discloses a method and system for recognizing human action in an apron based on thermal infrared vision, the method comprises: acquiring a plurality of video sequences from an infrared monitoring video; labeling a set target in each image frame in each video sequence with a target box to obtain a target tracking result; intercepting, for each image frame in the video sequence, a target-box enlarged area according to the labeled target box; adding, for each image frame in the video sequence, the position information of the image labeled with target box to the target-box enlarged area to obtain a three-channel sub-image; training an action recognition model by using three-channel sub-image sequences corresponding to a plurality of video sequences as a training set, to obtain a trained action recognition model; obtaining a to-be-recognized video sequence from another infrared monitoring video, and obtaining a three-channel sub-image sequence corresponding to the to-be-recognized video sequ

Abstract: A method performed by a surgical system that includes cameras within an operating room. The system receives a first image from a first camera, representing a first FOV that has an object at a first location. The system receives a second image from a tracking camera having the object at the first location, and determines a first pose of the first camera based on the first and second images. The system receives a third image captured by a second camera, representing a second, different FOV, and having the object at a second location. The system receives a fourth image captured by the tracking camera having the object at the second location, and determines a second pose of the second camera based on the third and fourth images. The system determines a relative spatial transformation between the first and second cameras based on the first and second poses.

Abstract: For control about a remote center of motion (RCM) of a surgical robotic system, possible configurations of a robotic manipulator are searched to find the configuration providing a greatest overlap of the workspace of the surgical instrument with the target anatomy. The force at the RCM may be measured, such as with one or more sensors on the cannula or in an adaptor connecting the robotic manipulator to the cannula. The measured force is used to determine a change in the RCM to minimize the force exerted on the patient at the RCM. Given this change, the configuration of the robotic manipulator may be dynamically updated. Various aspects of this RCM control may be used alone or in combination, such as to optimize the alignment of workspace to the target anatomy, to minimize force at the RCM, and/or to dynamically control the robotic manipulator configuration based on workspace alignment and force measurement.

Abstract: A method performed by a surgical system. The method includes receiving a first image from an endoscope, the first image having a surgical instrument at a first location within a field of view of the endoscope. The method matches a three-dimensional (3D) model of the surgical instrument to the first image. The method receives a second image receives a second image from the endoscope, the second image having the surgical instrument at a second location within the field of view of the endoscope, and matches the 3D model of the surgical instrument to the second image. The method estimates a distance between the first and second locations based on both matchings and one or more parameters of the endoscope.

Abstract: A series of images is obtained from an endoscope. Three-dimensional reconstruction is performed on the series of images to reconstruct anatomy shown in the series of images. A graphic, such as a grid, is rendered based on the three-dimensional reconstruction, over the series of images resulting in an enhanced endoscopic video feed to be shown on a display.