Abstract: A digital control laser automatic tooth preparation method and device and a tooth positioner are provided. The device includes an intra-oral three-dimensional scanner, a dental laser, an oral working end, an oral and maxillofacial cone beam CT scanner, a computer, a tooth positioner, a negative-pressure suction device and a real-time monitoring device. The computer is connected respectively with the intra-oral three-dimensional scanner, the dental laser, the oral working end, the oral and maxillofacial cone beam CT scanner, the negative-pressure suction device, and the real-time monitoring device. The dental laser is connected with the oral working end of the digital control laser tooth preparation control system through a light guiding arm (1). The oral working end of the digital control laser tooth preparation control system is connected with the tooth positioner and the real-time monitoring device. The negative-pressure suction device is connected with the tooth positioner.

Abstract: A control system for limiting power turbine torque (QPT) of a gas turbine engine includes a controller including a processor and memory configured to control the gas turbine engine, the controller including an engine control module that provides an effector command signal to a gas generator of the gas turbine engine; a power turbine governor module that outputs a preliminary torque request (QPT_req_pre); and a power turbine torque (QPT) optimal limiter module that outputs a maximum torque topper (QPT_max) to limit a power turbine speed overshoot of the gas turbine engine; wherein the controller outputs a minimum value between the preliminary torque request (QPT_req_pre) and the maximum torque topper (QPT_max) to the engine control module.

Abstract: A method performed by an electronic device is described. The method includes receiving a set of images. The method also includes determining a motion region and a static region based on the set of images. The method further includes extracting, at a first rate, first features from the motion region. The method additionally includes extracting, at a second rate that is different from the first rate, second features from the static region. The method also includes caching the second features. The method further includes detecting at least one object based on at least a portion of the first features.

Abstract: Techniques and systems are provided for generating a background picture. The background picture can be used for coding one or more pictures. For example, a method of generating a background picture includes generating a long-term background model for one or more pixels of a background picture. The long-term background model includes a statistical model for detecting long-term motion of the one or more pixels in a sequence of pictures. The method further includes generating a short-term background model for the one or more pixels of the background picture. The short-term background model detects short-term motion of the one or more pixels between two or more pictures. The method further includes determining a value for the one or more pixels of the background picture using the long-term background model and the short-term background model.

Abstract: To determine real-world information about objects moving in a scene, the camera capturing the scene is typically calibrated to the scene. Automatic scene calibration can be accomplished using people that are found moving about in the scene. During a calibration period, a video content analysis system processing video frames from a camera can identify blobs that are associated with people. Using an estimated height of a typical person, the video content analysis system can use the location of the person's head and feet to determine a mapping between the person's location in the 2-D video frame and the person's location in the 3-D real world. This mapping can be used to determine a cost for estimated extrinsic parameters for the camera. Using a hierarchical global estimation mechanism, the video content analysis system can determine the estimated extrinsic parameters with the lowest cost.

Abstract: According to one embodiment, a first keyword-to-image (keyword/image) mapping table is provided. The first keyword mapping table includes a number of entries, each entry mapping a keyword to one or more image identifiers (IDs) identifying one or more images. For each of the keywords of the first keyword/image mapping table, an analysis is performed on the keyword to determine one or more related keywords that are related to the keyword. One or more additional entries corresponding to the one or more related keywords are generated to be incorporated into the first keyword/image mapping table to generate a second keyword/image mapping table. The second keyword/image mapping table is utilized to associated a particular image to a particular content item related to a particular keyword.

Abstract: A wind turbine and an operational control method therefor are disclosed. The method comprises: obtaining current directional data from the nacelle of the wind turbine; and, according to the directional data, positional data of each wind turbine of a wind farm, as well as wind condition data as measured by each wind turbine, and controlling operational equipment of the wind turbine, so as to increase power generated by the wind turbine. According to the current direction of the nacelle of the wind turbine, positional data of each wind turbine of a wind farm, and wind condition data as measured by each wind turbine, accurate control policy adjustment is performed in advance on operational equipment of a wind turbine, thereby increasing the power generated by the wind turbine. A device for implementing the control method is also disclosed.

Abstract: Provided is a nerve growth factor mutant, wherein same is an amino acid sequence as shown by any one of SEQ ID No: 3 to SEQ ID No: 21 in the sequence listing. The advantage of the nerve growth factor mutant lies in that the mutation of a nerve growth factor can alleviate side effects such as pain, falling within the field of biological pharmacy.

Abstract: Disclosed are a conductive ring assembly, a conductive device and a wind turbine. The conductive ring assembly includes a sun gear, a ring gear and one or more planet gear. The sun gear is located in the ring gear, and the sun gear and the ring gear are coaxially arranged. The one or more planet gear is engaged between the sun gear and the ring gear. The planet gear is conducted with the sun gear and the ring gear at the same time, so that an electrical signal is transmitted between the sun gear and the ring gear by means of the one or more planet gear. The conductive ring assembly uses a planet gear structure for communication data transmission to improve the interference resistance of the conductive ring assembly.

Abstract: A flexible device is provided according to the present application, which includes a first sliding shaft, a second sliding shaft, a middle sliding shaft group and a connecting member group. The middle sliding shaft group includes multiple middle sliding shafts arranged in rows. The middle sliding shaft group is movably connected to the first sliding shaft and the second sliding shaft by the connecting member group. The flexible device can be bent along an extending direction of the middle sliding shaft group, and a bent portion of the flexible device is always of an arc-shaped structure. The flexible device according to the present application adopts a mechanical structure to realize a bending deformation thus can avoid problems of a degraded bending performance and breakage generated after the flexible device is frequently used in the conventional technology. An electronic device employing the flexible device is further provided.

Abstract: Embodiments of the present disclosure provide an array substrate and a manufacturing method thereof, and a display device. The array substrate includes a plurality of pixel structures. The pixel structure includes a gate electrode, a gate electrode insulating layer, an active layer, source and drain electrodes, and a passivation layer which are sequentially stacked. The pixel structure further includes a first electrode and a second electrode. The first electrode is located between the gate electrode insulating layer and the passivation layer, and electrically connected to one of the source electrode and the drain electrode. The second electrode is located above the passivation layer. A first via passing through the passivation layer is provided, and the second electrode is electrically connected to one of the source electrode and the drain electrode through the first via.

Abstract: The disclosure provides a shift register unit, a shift register, a driving method and an array substrate. The shift register unit may comprise a touch-controlled circuit comprising a touch-controlled turning-on module and a touch-controlled turning-off module, wherein a control of the touch-controlled turning-on module is connected to a touch-controlled turning-on signal, an input is connected to a negative power supply signal, and an output is connected to an output terminal, and the touch-controlled turning-on signal is a pulse signal at a start of a touch controlling period; and a control of the touch-controlled turning-off module is connected to a touch-controlled turning-off signal, an input of the touch-controlled turning-off module is connected to a positive power supply signal, and an output of the touch-controlled turning-off module is connected to the output terminal, wherein the touch-controlled turning-off signal is a pulse signal at an end of the touch controlling period.

Abstract: A touch display panel and a display device are disclosed which achieve touch function and narrow bezel function while the required number of the vertical wiring is reduced and the aperture ratio of the touch display panel is increased.

Abstract: The present disclosure provides an array substrate, a display panel and a display apparatus. The array substrate includes gate lines and data lines defining a sub-pixel array, which contains sub-pixels of three different colors and includes repeating units, each of which includes twelve sub-pixels arranged in a matrix of four rows and three columns; in each repeating unit, three sub-pixels in a same row or column, among nine sub-pixels in three consecutive rows, have colors different from each other, three sub-pixels in the other row than the three consecutive rows of the repeating unit are arranged in the same order as three sub-pixels in a middle row among the three consecutive rows; each gate line is connected to a corresponding row of sub-pixels in the sub-pixel array; and each data line is connected to sub-pixels of a same color in corresponding three consecutive columns of sub-pixels in the sub-pixel array.

Abstract: A start control method for wind turbines (102), comprising: a master control determines whether its real-time wind speed reaches a preset start wind speed when a wind speed of at least one wind turbine (102) or anemometer tower in a wind farm reaches or exceeds the preset start wind speed; the master controller updates a corresponding number simulative start times when determining that its real-time wind speed reaches or exceeds the preset start wind speed, and starts the wind turbine (102) when the number of simulative start times reaches a preset count value. The present invention also relates to a master controller, a system, and a central controller for wind turbines (102).

Abstract: One embodiment provides a deformable housing, including a recess for holding a deformable device; a deformable portion comprising at least two surfaces having a plurality of concave/convex structures; and at least two support parts embedded in the deformable portion. Other aspects are described and claimed.

Abstract: A wind turbine and an operational control method therefor are disclosed. The method comprises: obtaining current directional data from the nacelle of the wind turbine; and, according to the directional data, positional data of each wind turbine of a wind farm, as well as wind condition data as measured by each wind turbine, and controlling operational equipment of the wind turbine, so as to increase power generated by the wind turbine. According to the current direction of the nacelle of the wind turbine, positional data of each wind turbine of a wind farm, and wind condition data as measured by each wind turbine, accurate control policy adjustment is performed in advance on operational equipment of a wind turbine, thereby increasing the power generated by the wind turbine. A device for implementing the control method is also disclosed.

Abstract: According to one embodiment, a first phrase having one or more keywords is received to be added to a phrase blacklist, where the first phrase has been determined to be related to unwanted content. An analysis is performed on the keywords of the first phrase to identifying a set of one or more related phrases that are related to the first phrase. The first phrase and the set of related phrases are added in the phrase blacklist. The phrase blacklist contains a plurality of phrases that have been determined to be related to unwanted content. The phrase blacklist is utilized to prevent a content item from appearing in a search result, in response to a search query having a phrase matching at least one of the phrases in the phrase backlist.

Abstract: Systems, devices, and methods of displaying and/or recording multiple pictures in a picture (PIP) on the same display of a digital display device are disclosed. The PIPs can show objects from the main field view of the display device, such as a front camera lens, as well as objects from a different field of view, such as a back camera lens. The PIPs can further track the objects that are being displayed.

Abstract: Embodiments of the present invention provide a gate driver circuit, a touch display device and a touch display driving method. The gate driver circuit includes a plurality of GOA unit groups arranged successively and control units arranged between every two adjacent GOA unit groups, each of the GOA unit groups comprising a plurality of shift registers which are cascaded. The control unit is configured to output a start control signal at a high level to a signal input end of a first stage shift register of a next GOA unit group corresponding thereto, after a last stage shift register of a previous GOA unit group corresponding thereto completes driving for a corresponding gate line and a predetermined time elapses, so as to pre-charge the first stage shift register of the next GOA unit group.