Abstract: Disclosed are an optical fiber scanner and a projection apparatus. The optical fiber scanner comprises a housing, an optical fiber enclosed in the housing, an actuator, and projection objective lenses, wherein the optical fiber comprises a fiber core and an inner cladding; the optical fiber is fixed on the actuator, one end of the optical fiber extends beyond the actuator to form an optical fiber cantilever, and a fiber core end face of the optical fiber cantilever is recessed inwards to form a negative focal power, such that an equivalent light-emitting surface of the fiber core end face is reversely focused in the fiber core; and the projection objective lenses are arranged on a light-emitting path of the optical fiber cantilever and are used for focusing and imaging the equivalent light-emitting surface (6).

Abstract: Methods, devices, electronic devices, apparatus, and systems for image reconstruction are provided. In one aspect, a method includes: obtaining first Computed Tomography (CT) data collected by a CT device performing a first contrast medium tracking scan on a target object based on a first reciprocating scanning sequence, obtaining second CT data by the CT device performing a second contrast medium tracking scan on the target object based on a second reciprocating scanning sequence in response to determining that a CT value in the first CT data exceeds a CT value threshold, and reconstructing CT images of the target object by using the first CT data and the second CT data respectively.

Abstract: Disclosed are an optical fiber scanner and a projection apparatus. The optical fiber scanner comprises a housing, an optical fiber enclosed in the housing, an actuator, and projection objective lenses, wherein the optical fiber comprises a fiber core and an inner cladding; the optical fiber is fixed on the actuator, one end of the optical fiber extends beyond the actuator to form an optical fiber cantilever, and a fiber core end face of the optical fiber cantilever is recessed inwards to form a negative focal power, such that an equivalent light-emitting surface of the fiber core end face is reversely focused in the fiber core; and the projection objective lenses are arranged on a light-emitting path of the optical fiber cantilever and are used for focusing and imaging the equivalent light-emitting surface (6).

Abstract: The present invention provides a method for preparing an aromatic polyamide porous membrane and an aromatic polyamide porous membrane prepared by the above method. The method for preparing an aromatic polyamide porous membrane includes the following steps: mixing an ionic liquid with an aromatic polyamide into a solvent to form a mixed solution; the mixed solution forming a membrane in a coagulation bath; and extracting with an extractant to remove the solvent and the ionic liquid from the membrane to yield a porous membrane. In the method of the present invention, the application of the ionic liquid would greatly reduce the application of additives; further, the ionic liquid has a high stability and is easy to be separated from other solvents and be recycled, which assures the safety during the usage and recycle thereof.

Abstract: Methods, devices, electronic devices, apparatus, and systems for image reconstruction are provided. In one aspect, a method includes: obtaining first Computed Tomography (CT) data collected by a CT device performing a first contrast medium tracking scan on a target object based on a first reciprocating scanning sequence, obtaining second CT data by the CT device performing a second contrast medium tracking scan on the target object based on a second reciprocating scanning sequence in response to determining that a CT value in the first CT data exceeds a CT value threshold, and reconstructing CT images of the target object by using the first CT data and the second CT data respectively.

Abstract: Computer systems and methods for training and/or testing a self-driving vehicle. The systems and methods, via in-car cameras and sensors, capture video of conditions surrounding the vehicle, driving data related to control of the vehicle, and driver behavior data representing actions by a human controlling the vehicle. The systems and methods analyze the captured video data and driving data to derive decisions a computer would make to control the vehicle. The systems and methods analyze the captured driver behavior data to determine decisions made by the human to control the vehicle. The systems and methods evaluate the derived computer decisions in comparison to the determined human decisions to detect data indicating discrepancies between the derived computer decisions and the determined human decisions for controlling the vehicle. The systems and methods provide the detected data as input to a model for training and/or testing a self-driving vehicle.

Abstract: Embodiments of the present invention provide a method, system and computer program product for constraining individual meeting times of a task to a specified total duration of aggregated meeting times. In an embodiment of the invention, a method of constraining individual meeting times of a task to a specified total duration of aggregated meeting times is provided. The method includes selecting an event amongst a plurality of events associated with a single task in a C&S system executing in memory of a host server. The method further includes adjusting a duration of time for the selected event. The method yet further includes determining whether or not a sum total of all durations of time for the events associated with the single task exceeds a time constraint for the single task.

Abstract: A connected camera system and computer-implemented method for processing visual data. The camera system and method provides control data to a mobile application of a mobile device. The camera system and method transmits the control data from the mobile device (via a cloud service) to a camera device. The camera device configured with a camera housing comprising a camera sensor that captures visual data (e.g., image or video data) in view of a lens. The camera device further configured with a processor coupled to a motor for rotating a shaft. The camera system and method receive the control data, and based on the control data, the processor controls the motor to rotate the shaft. The rotating of the shaft, in turn, rotates the camera housing, such that the camera sensor captures the visual data in view of the lens through a 360-degree plane of rotation.

Abstract: The present disclosure provides an ionic liquid and a preparation method thereof, in particular, the present disclosure provides an ionic liquid whose halogen anions content and moisture content are low, and a method for preparing the same. The total content of halogen anions in the ionic liquid is less than 10 ppm, and moisture content in the ionic liquid is less than 50 ppm. The ionic liquid prepared by the method of the present disclosure is suitable for electrochemical systems which have high requirements for moisture content, such as lithium ion secondary batteries and electrochemical supercapacitors.

Abstract: The present invention relates to a preparation method of ionic liquids, particularly to a one-step reaction method used for synthesizing quaternary ammonium compounds or quaternary phosphonium compounds. In the method, a nitrogenous or phosphorous compound, a proton compound, and a carbonate ester are added into a reactor simultaneously to synthesize corresponding the quaternary ammonium ionic liquid or the quaternary phosphonium ionic liquid through said one-step reaction, i.e., ‘one-pot method’ reaction, during which three reactants are involved. The present invention also provides a lithium ion secondary battery comprising the ionic liquid prepared by above-mentioned preparation method. The ionic liquid preparation method of the present invention can widen the choice range of raw materials needed when preparing ionic liquids, and further widen the synthesized ionic liquid species.

Abstract: The present invention provides a method for preparing an aromatic polyamide porous membrane and an aromatic polyamide porous membrane prepared by the above method. The method for preparing an aromatic polyamide porous membrane includes the following steps: mixing an ionic liquid with an aromatic polyamide into a solvent to form a mixed solution; the mixed solution forming a membrane in a coagulation bath; and extracting with an extractant to remove the solvent and the ionic liquid from the membrane to yield a porous membrane. In the method of the present invention, the application of the ionic liquid would greatly reduce the application of additives; further, the ionic liquid has a high stability and is easy to be separated from other solvents and be recycled, which assures the safety during the usage and recycle thereof.

Abstract: The present disclosure relates to a method and device for augmented reality display of real physical model. By adopting the method and/or device of the present disclosure, the real physical model may be combined with its virtual physical model, and the display of the physical model may become more vivid with the help of AR technology.

Abstract: A portable video capture device, including a data storage device, an image sensor, and a processor, is disclosed. The image sensor captures video data and the processor encodes the video data to generate first, second, and third compressed video data sets, respectively having low, medium, and high resolution, which are then stored on the storage device. The processor receives position data from various sensors and on-board diagnostic (OBD) data from an operating automobile and encodes the received data as a visual display superimposed on video data. The capture device transmits streaming video data to a remote device and performs video editing and indexing functions on the video data, automatically according to predetermined criteria, and/or based on based on instructions received from the remote device. The remote device receives video editing instructions from a graphical user interface based on received video data and transmits the instructions to the video device.

Abstract: The present disclosure relates to a method and device for augmented reality display of real physical model. By adopting the method and/or device of the present disclosure, the real physical model may be combined with its virtual physical model, and the display of the physical model may become more vivid with the help of AR technology.

Abstract: A disclosed mounting device for a portable video capture device includes a main body, a first coupling device, and a second coupling device. The main body includes a Global Positioning System (GPS) receiver. The first coupling device provides a mechanical coupling between the main body and a mounting surface, and the second coupling device provides an electrical and mechanical coupling between the main body and the portable video capture device. The GPS receiver includes a GPS antenna and a GPS module. The GPS module includes circuitry that receives GPS signals from the GPS antenna and provides the received GPS signals to the portable video capture device through the electrical coupling provided by the second coupling device. A disclosed method includes generating, from the GPS signals, position information that is updated at a rate of no less than 6 Hz, and transmitting the position information to the portable video capture device.

Abstract: The present disclosure provides an ionic liquid and a preparation method thereof, in particular, the present disclosure provides an ionic liquid whose halogen anions content and moisture content are low, and a method for preparing the same. The total content of halogen anions in the ionic liquid is less than 10 ppm, and moisture content in the ionic liquid is less than 50 ppm. The ionic liquid prepared by the method of the present disclosure is suitable for electrochemical systems which have high requirements for moisture content, such as lithium ion secondary batteries and electrochemical supercapacitors.

Abstract: Embodiments of the present invention provide a method, system and computer program product for shape based scheduling of events for a task in a calendaring and scheduling (C&S) system. In an embodiment of the invention, a method for shape based scheduling of events for a task in a C&S system is provided. The method includes defining a shape for a range of days in a calendar view of a C&S system executing in memory of a host computer. The method further includes superimposing the shape over the range of days in the calendar view. The method yet further includes determining a block of time for each of the days in the range upon which a portion of the shape has been superimposed. Finally, the method includes scheduling at least one event for each block of time determined for each of the days in the range upon which a portion of the shape has been superimposed.