Abstract: A galvanometer positioning tool and a laser printer. The galvanometer positioning tool includes: a base provided with a bearing surface and provided with a first concave spherical surface; a bracket placed on the bearing surface, a positioning assembly being provided on a side surface of the bracket facing the bearing surface, a galvanometer being mounted on the bracket; and a reflection center of the galvanometer located on the spherical center of the sphere where the first concave spherical surface is located. The rotation assembly includes a first rotation rod fixedly connected to the second rotation rod and rotatably connected to the base. The second rotation rod is slidably connected to the bracket, and when the first rotation rod rotates relative to the base, the first rotation rod is capable of driving the bracket to rotate with the y-axis of the galvanometer as a rotation axis.

Abstract: A fusion imaging system co-registers and fuses real time ultrasound images with reference images such as those produced by MRI or CT imaging. In an illustrated implementation, previously acquired CT or MRI or ultrasound images are loaded into the system. An ultrasound system is operated in conjunction with a tracking system so that the ultrasound probe and images can be spatially tracked. A computerized image processor registers the probe position with a reference image of the anatomy being scanned by the probe and determines whether the probe appears to be inside the skin line of the subject. If that is the case it is due to probe compression of the subject, and the reference image is modified to locate the skin line in the reference image in front of the ultrasound probe. The modified reference images can then be readily co-registered and fused with the ultrasound images produced by the probe.

Abstract: A method for simulating a particle transport may include recording transport paths of inputted particles and determining an uncertainty of each of lattice cells based on the transport paths of each batch of the inputted particles, a lattice cell being a qualified lattice cell if an uncertainty of the lattice cell does not exceed a first threshold; determining a standard-reaching rate of lattice cells in a region of interest (ROI), the ROI including at least one lattice cell, the standard-reaching rate of lattice cells in the ROI being equal to a ratio of the number of qualified lattice cells to a total number of lattice cells in the ROI; and if the standard-reaching rate of lattice cells in the ROI exceeds a second threshold, stopping inputting particles, and outputting the transport paths of the inputted particles.

Abstract: A sensor includes: a substrate, a chip, and a protective layer. The chip is arranged on a surface of the substrate, the protective layer includes a silica gel protective layer, a silica gel active layer, and a strength-increasing protective layer. the silica gel protective layer is coated on the chip and adheres to the substrate; the silica gel active layer is coated on an outer surface of the silica gel protective layer, and adhesion of the silica gel active layer is greater than adhesion of the silica gel protective layer; the strength-increasing protective layer is coated on and adheres to an outer surface of the silica gel active layer, and the strength-increasing protective layer adheres to the substrate; and a strength of the strength-increasing protective layer is greater than a strength of the silica gel protective layer.

Abstract: A gimbal photographing device includes a fuselage; a folding mechanism, connected to the fuselage; and a gimbal camera, connected to the folding mechanism. The gimbal camera is foldable and unfoldable relative to the fuselage via the folding mechanism. A power switch is disposed on the fuselage. The folding mechanism includes a base connected to the gimbal camera. When the gimbal camera is unfolded relative to the fuselage, the base is configured to abut against the power switch to turn on the gimbal photographing device.

Abstract: A fusion imaging system co-registers and fuses real time ultrasound images with reference images such as those produced by MRI or CT imaging. In an illustrated implementation, previously acquired CT or MRI or ultrasound images are loaded into the system. An ultrasound system is operated in conjunction with a tracking system so that the ultrasound probe and images can be spatially tracked. A computerized image processor registers the probe position with a reference image of the anatomy being scanned by the probe and determines whether the probe appears to be inside the skin line of the subject. If that is the case it is due to probe compression of the subject, and the reference image is modified to locate the skin line in the reference image in front of the ultrasound probe. The modified reference images can then be readily co-registered and fused with the ultrasound images produced by the probe.

Abstract: The present disclosure describes ultrasound imaging systems and methods, which may enable the automatic identification of an image plane in a pre-operative volume corresponding to a real-time image of a moving region of interest. An example method includes receiving real-time ultrasound image data from a probe associated with a position-tracking sensor, generating real-time images based on the real-time ultrasound data and deriving a motion model from the real-time ultrasound image data. The method may further include automatically identifying an image plane in a pre-operative data set to correspond to the real-time ultrasound image by correcting for motion-induced misalignment between the real-time data and the pre-operative data.

Abstract: A gimbal handle includes an enclosure including an accommodation space, a main control board accommodated in the accommodation space, and an electrical contact member provided at the main control board and electrically connected to the main control board. The electrical contact member penetrates the enclosure to expose to an outside of the enclosure. The electrical contact member is configured to be electrically connected to an adapter.

Abstract: An unmanned aerial vehicle includes a central body, a plurality of arms extendable from the central body, and one or more joints. Each of the plurality of arms is configured to support one or more propulsion units, and is configured to transform between (1) a flight configuration in which the arm is extending away from the central body and (2) a compact configuration in which the arm is folded against the central body. Each joint is configured to couple one arm to the central body. At least one of the one or more joints includes an elastic element configured to cause at least one of the plurality of arms to automatically retract when the at least one of the plurality of arms is reversibly folded to a first predetermined state, and automatically extend when the at least one of the plurality of arms is reversibly extended to a second predetermined state.

Abstract: The present disclosure describes ultrasound imaging systems and methods that may be used to image, for example, breast tissue. An ultrasound imaging system according to one embodiment may include a probe, a sensor attached to the probe and operatively associated with a position tracking system, a processor configured to receive probe position data from the position tracking system. The user interface may be configured to provide instructions for placement of the probe at a plurality of anatomical landmarks of a selected breast of the subject and receive user input to record the spatial location of the probe at each of the plurality of anatomical landmarks. The processor may be configured to determine a scan area based on the spatial location of the probe at each of the plurality of anatomical landmarks and generate a scan pattern for the selected breast. The processor may be further configured to monitor movement of the probe.

Abstract: Apparatuses and methods for drying objects are provided. The apparatus can comprise a housing configured to provide an airflow channel having an airflow inlet and an airflow outlet, an airflow generating element configured to effect an airflow through the airflow channel, and one or more radiation energy sources configured to generate infrared radiation and direct the infrared radiation toward an exterior of the housing. At least a portion of at least one of the one or more radiation energy sources does not contact the airflow channel or the airflow, thereby maintaining an operating temperature of the radiation energy source within a predetermined range.

Abstract: A hand-held gimbal includes a handle portion and a gimbal photographing device mounted on the handle portion. A display screen is disposed at the handle portion and configured to display at least one of content captured by the gimbal photographing device or a photographing parameter of the gimbal photographing device.

Abstract: Apparatuses and methods for drying objects are provided. The apparatus can comprise a housing configured to provide an airflow channel having an airflow inlet and an airflow outlet, an airflow generating element configured to effect an airflow through the airflow channel, and one or more radiation energy sources configured to generate infrared radiation and direct the infrared radiation toward an exterior of the housing. At least a portion of at least one of the one or more radiation energy sources does not contact the airflow channel or the airflow, thereby maintaining an operating temperature of the radiation energy source within a predetermined range.

Abstract: A fusion imaging system co-registers and fuses real time ultrasound images with reference images such as those produced by MRI or CT imaging. In an illustrated implementation, previously acquired CT or MRI or ultrasound images are loaded into the system. An ultrasound system is operated in conjunction with a tracking system so that the ultrasound probe and images can be spatially tracked. A computerized image processor registers the probe position with a reference image of the anatomy being scanned by the probe and determines whether the probe appears to be inside the skin line of the subject. If that is the case it is due to probe compression of the subject, and the reference image is modified to locate the skin line in the reference image in front of the ultrasound probe. The modified reference images can then be readily co-registered and fused with the ultrasound images produced by the probe.

Abstract: An unmanned aerial vehicle includes a central body and a plurality of arms extendable from the central body. Each of the plurality of arms is configured to support one or more propulsion units. Each of the plurality of arms is configured to transform between (1) a flight configuration in which the arm is extending away from the central body and (2) a compact configuration in which the arm is folded against the central body. At least one of the plurality of arms is configured to rotate about a first rotational axis and at least a portion of the at least one of the plurality of arms is configured to rotate about a second rotational axis not parallel to the first rotational axis.

Abstract: The present disclosure describes ultrasound imaging systems and methods that may be used to image, for example, breast tissue. An ultrasound imaging system according to one embodiment may include a probe, a sensor attached to the probe and operatively associated with a position tracking system, a processor configured to receive probe position data from the position tracking system. The user interface may be configured to provide instructions for placement of the probe at a plurality of anatomical landmarks of a selected breast of the subject and receive user input to record the spatial location of the probe at each of the plurality of anatomical landmarks. The processor may be configured to determine a scan area based on the spatial location of the probe at each of the plurality of anatomical landmarks and generate a scan pattern for the selected breast. The processor may be further configured to monitor movement of the probe.

Abstract: An unmanned aerial vehicle (UAV) includes a body and a gimbal camera. The body includes a housing including an inwardly recessed mounting groove with a notch on one side of the mounting groove, and a protective cover arranged at the housing and configured to open and cover the notch. The gimbal camera includes a mounting frame detachably connected to the housing via the mounting groove; a gimbal arranged at the mounting frame; and a camera arranged at the gimbal. In response to the gimbal camera and the housing being connected via the mounting frame, the gimbal camera is at least partially accommodated in the notch.

Abstract: Disclosed are a readout circuit, an offset voltage eliminating method and device, a computer device, and a non-transitory computer-readable storage medium. The readout circuit includes an object quantizer and an offset voltage elimination circuit. The offset voltage elimination circuit includes a correction circuit and a calibration circuit, an input of the correction circuit is connected to an output of the object quantizer, a compensation input of the calibration circuit is connected to an output of the current compensator, and a reference input of the calibration circuit is connected to the output of the object quantizer.

Abstract: An unmanned aerial vehicle (UAV) includes a vehicle body and a multi-ocular imaging assembly. The multi-ocular imaging assembly includes at least two imaging devices disposed in and fixed to the vehicle body.

Abstract: Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are characterized in being incompatible with polyol or polyol mixture used to make the foam, having a viscosity of at least 5,000 centipoise at 25 #C and having a glass transition temperature of at most 20 #C. The tackifier is pre-blended with certain monols to form a lower-viscosity blend that is combined with one or more other polyols and a polyisocyanate to form a reaction mixture for producing a polyurethane foam.