Abstract: Provided are a synchronous fluorescence detector for observing the interface concentration of fluorescent pollutants and application method. The detector comprises a first electric displacement platform, a quartz cuvette, an excitation light path, a collection light path and a second electric displacement platform. The application method comprises the following steps: first exciting fluorescent pollutants by utilizing UV light with specific wavelengths to emit fluorescent light; then collecting fluorescence signals emitted by the excited fluorescent pollutants to the greatest extent by utilizing an UV anti-reflection convex lens combination; and finally, processing the fluorescent signals acquired by a photomultiplier by utilizing a difference method to determine a precise light intensity of a thin layer which is moved at a specific spacing by utilizing the electric displacement platforms so as to determine fugacity distribution of the fluorescent pollutants in the microlayer near an interface.

Abstract: Provided are a synchronous fluorescence detector for observing the interface concentration of fluorescent pollutants and application method. The detector comprises a first electric displacement platform, a quartz cuvette, an excitation light path, a collection light path and a second electric displacement platform. The application method comprises the following steps: first exciting fluorescent pollutants by utilizing UV light with specific wavelengths to emit fluorescent light; then collecting fluorescence signals emitted by the excited fluorescent pollutants to the greatest extent by utilizing an UV anti-reflection convex lens combination; and finally, processing the fluorescent signals acquired by a photomultiplier by utilizing a difference method to determine a precise light intensity of a thin layer which is moved at a specific spacing by utilizing the electric displacement platforms so as to determine fugacity distribution of the fluorescent pollutants in the microlayer near an interface.

Abstract: The present disclosure provides a servo output shaft angle calibration method and a robot using the same. In the method, when a servo output shaft rotational angle calibration instruction is obtained, an output shaft of a servo is controlled to move in a preset rotational direction, a current angle of the output shaft of the servo is obtained when it detects that the output shaft of the servo has rotated to an end point and has a stalling, and then a preset end point angle is updated as the current angle of the output shaft of the servo, so as to take the current angle of the output shaft of the servo as the new end point angle, thereby realizing the calibration of the end point angle of the output shaft of the servo. In this manner, the entire calibration process requires no manual intervention.

Abstract: A building element for a modular device includes a male connector comprising M first magnets, a first ground terminal, a first detection terminal, a first power terminal, and a first signal terminal; and a female connector comprising M second magnets that are magnetically attractable to the first magnets, N second ground terminals, O second detection terminals, P second power terminals, and a second signal terminal. When the male connector of one building element is mechanically connected to the female connector of another building element, the first ground terminal, the first detection terminal, the first power terminal and the first signal terminal of the male connector of the one of two building elements respectively come into contact with one of the second ground terminals, one of the second detection terminals, one of the second power terminals, and the second signal terminal of the other one of the two building elements.

Abstract: An irregular display panel and a display device are provided. A display region has an irregular boundary. The display panel includes low-luminance pixels, and normal pixels arranged away from the irregular boundary. The pixel rows and/or the pixel columns include pixel groups each including a first pixel group and a second pixel group. The number of pixels adjacent to the irregular boundary in the first pixel group is greater than that in the second pixel group, and the number of low-luminance pixels of the first pixel group is greater than or equal to that of the second pixel group. The pixel includes at least three sub pixels each including an electrode having at least one slit. The total slit lengths of the low-luminance pixels in a same pixel group increase gradually in a direction from the irregular boundary to the display region.

Abstract: The present disclosure is provides a servo control method as well as an apparatus and a robot using the same. The method includes: obtaining a teeth force reduction multiple of a gear of a servo; creating a voltage queue based on the teeth force reduction multiple; calculating a target loading voltage corresponding to a current moment based on a voltage queue; and applying the target loading voltage on a motor of the servo, wherein the target loading voltage is for driving the motor of the servo to rotate. Through the above-mentioned method, the loading voltage can be effectively reduced when the servo is started, thereby protecting teeth of the gear of the servo and increasing the service life of the servo.

Abstract: The present disclosure relates to servo technology, and particularly to a method and a device for detecting rotation angle of a multi-turn servo, and a multi-turn servo. The method includes: driving a multi-turn servo to be at a zero-point position; obtaining an accurate angle and a number of rotation when the multi-turn servo is at the zero-point position; detecting a current angle of the multi-turn servo in a real-time manner; incrementing the number of rotation by one in response to a zero-point forward jump between a current angle and a previous angle; decrementing the number of rotation by one in response to a zero-point backward jump between the current angle and the previous angle; and determining a current rotation angle of the multi-turn servo in accordance with an accurate angle, a current angle, and the number of rotation stored on the storage.

Abstract: A method for improving the seismic performance of bridges by utilizing the beam body and an energy dissipation and seismic mitigation bridge bearing, which can effectively eliminate the harmful vibration of the bridge pier in the inherent frequency band, thus reducing the stress of the pier body and improving the seismic performance of the bridge pier without introducing external additional mass and looking for an installation space on the pier. The method includes the following steps: obtain the natural frequency fi, the equivalent modal mass Mi and the modal stiffness Ki of the pier in the longitudinal or transverse direction by numerical modal analysis or experimental modal test; determine the mass mi of the beam body; calculate the connection stiffness ki and the connection damping ci between the beam body and the pier; select the bearing system with above connection stiffness ki and the connection damping ci.

Abstract: The present disclosure is provides a servo control method as well as an apparatus and a robot using the same. The method includes: obtaining a teeth force reduction multiple of a gear of a servo; creating a voltage queue based on the teeth force reduction multiple; calculating a target loading voltage corresponding to a current moment based on a voltage queue; and applying the target loading voltage on a motor of the servo, wherein the target loading voltage is for driving the motor of the servo to rotate. Through the above-mentioned method, the loading voltage can be effectively reduced when the servo is started, thereby protecting teeth of the gear of the servo and increasing the service life of the servo.

Abstract: A building element for a modular device includes a male connector comprising M first magnets, a first ground terminal, a first detection terminal, a first power terminal, and a first signal terminal; and a female connector comprising M second magnets that are magnetically attractable to the first magnets, N second ground terminals, O second detection terminals, P second power terminals, and a second signal terminal. When the male connector of one building element is mechanically connected to the female connector of another building element, the first ground terminal, the first detection terminal, the first power terminal and the first signal terminal of the male connector of the one of two building elements respectively come into contact with one of the second ground terminals, one of the second detection terminals, one of the second power terminals, and the second signal terminal of the other one of the two building elements.

Abstract: The present disclosure provides a servo output shaft angle calibration method and a robot using the same. In the method, when a servo output shaft rotational angle calibration instruction is obtained, an output shaft of a servo is controlled to move in a preset rotational direction, a current angle of the output shaft of the servo is obtained when it detects that the output shaft of the servo has rotated to an end point and has a stalling, and then a preset end point angle is updated as the current angle of the output shaft of the servo, so as to take the current angle of the output shaft of the servo as the new end point angle, thereby realizing the calibration of the end point angle of the output shaft of the servo. In this manner, the entire calibration process requires no manual intervention.

Abstract: A display panel comprises a display region, a non-display region, and a black matrix. The display region includes a plurality of pixels arranged in both a first direction and a second direction, where the plurality of pixels are arranged in the first direction to form a plurality of pixel rows and, meanwhile, arranged in the second direction to form a plurality of pixel columns, and a pixel includes a light-transmitting area. The black matrix does not overlap with the light-transmitting area. The display region includes at least one irregular edge intersecting both the first direction and the second direction. The plurality of pixels include a plurality of first pixels intersecting the at least one irregular edge and a plurality of second pixels without intersecting the at least one irregular edge, and the light-transmitting area of the first pixel is smaller than the light-transmitting area of the second pixel.

Abstract: A profiled display panel and a display device are provided. A display region of the profiled display panel has a profiled border. The profiled display panel includes a plurality of pixels including low-brightness pixels and regular pixels. Brightness of the low-brightness pixels is lower than brightness of the regular pixels under same driving voltage. The plurality of pixels forms a plurality of pixel rows extending in first direction and a plurality of pixel columns extending in second direction. Each of the pixel rows or the pixel columns includes at least one pixel group including the low-brightness pixels at one end of the pixel group and the regular pixels at the other end, and the regular pixels are arranged away from the profiled border. An aperture area of the respective low-brightness pixels in same pixel group is gradually increased in direction from the profiled border to the display region.

Abstract: A profiled display panel is provided, the display region thereof has profiled border. The profiled display panel comprises low-brightness pixels and regular pixels. The pixels form pixel rows and pixel columns. The pixel row or column comprises pixel group comprising first and second pixel group. The number of pixels adjacent to the profiled border in first pixel group is greater than that of in second pixel group. The number of the low-brightness pixels in first pixel group is greater than or equal to that of in second pixel group. The wiring direction of the data line is second direction. The pixel comprises at least three sub-pixels. An aperture height of the sub-pixels in the low-brightness pixel is smaller than that of in the regular pixel along second direction. An aperture area of the low-brightness pixel is gradually increased in a direction from the profiled border to the display region.

Abstract: A method for improving the seismic performance of bridges by utilizing the beam body and an energy dissipation and seismic mitigation bridge bearing, which can effectively eliminate the harmful vibration of the bridge pier in the inherent frequency band, thus reducing the stress of the pier body and improving the seismic performance of the bridge pier without introducing external additional mass and looking for an installation space on the pier. The method includes the following steps: obtain the natural frequency fi, the equivalent modal mass Mi and the modal stiffness Ki of the pier in the longitudinal or transverse direction by numerical modal analysis or experimental modal test; determine the mass mi of the beam body; calculate the connection stiffness ki and the connection damping ci between the beam body and the pier; select the bearing system with above connection stiffness ki and the connection damping ci.

Abstract: The present disclosure relates to servo technology, and particularly to a method and a device for detecting rotation angle of a multi-turn servo, and a multi-turn servo. The method includes: driving a multi-turn servo to be at a zero-point position; obtaining an accurate angle and a number of rotation when the multi-turn servo is at the zero-point position; detecting a current angle of the multi-turn servo in a real-time manner; incrementing the number of rotation by one in response to a zero-point forward jump between a current angle and a previous angle; decrementing the number of rotation by one in response to a zero-point backward jump between the current angle and the previous angle; and determining a current rotation angle of the multi-turn servo in accordance with an accurate angle, a current angle, and the number of rotation stored on the storage.

Abstract: A display panel, a display apparatus, and a display panel driving method are provided. The display panel comprises a display region including a plurality of pixels arranged in both a first direction and a second direction. The first direction intersects the second direction, and a non-display region surrounding the display region. The display region includes at least one irregular edge intersecting both the first direction and the second direction. The plurality of pixels include a plurality of first pixels intersecting the at least one irregular edge and a plurality of second pixels without intersecting the at least one irregular edge. A first pixel has an initial grayscale g. In a display phase of the display panel, the initial grayscale g of the first pixel is adjusted to a display grayscale G, where G<g.

Abstract: An irregular display panel and a display device are provided. A display region has an irregular boundary. The display panel includes low-luminance pixels, and normal pixels arranged away from the irregular boundary. The pixel rows and/or the pixel columns include pixel groups each including a first pixel group and a second pixel group. The number of pixels adjacent to the irregular boundary in the first pixel group is greater than that in the second pixel group, and the number of low-luminance pixels of the first pixel group is greater than or equal to that of the second pixel group. The pixel includes at least three sub pixels each including an electrode having at least one slit. The total slit lengths of the low-luminance pixels in a same pixel group increase gradually in a direction from the irregular boundary to the display region.

Abstract: A display panel comprises a display region, a non-display region, and a black matrix. The display region includes a plurality of pixels arranged in both a first direction and a second direction, where the plurality of pixels are arranged in the first direction to form a plurality of pixel rows and, meanwhile, arranged in the second direction to form a plurality of pixel columns, and a pixel includes a light-transmitting area. The black matrix does not overlap with the light-transmitting area. The display region includes at least one irregular edge intersecting both the first direction and the second direction. The plurality of pixels include a plurality of first pixels intersecting the at least one irregular edge and a plurality of second pixels without intersecting the at least one irregular edge, and the light-transmitting area of the first pixel is smaller than the light-transmitting area of the second pixel.

Abstract: A profiled display panel and a display device are provided. A display region of the profiled display panel has a profiled border. The profiled display panel includes a plurality of pixels including low-brightness pixels and regular pixels. Brightness of the low-brightness pixels is lower than brightness of the regular pixels under same driving voltage. The plurality of pixels forms a plurality of pixel rows extending in first direction and a plurality of pixel columns extending in second direction. Each of the pixel rows or the pixel columns includes at least one pixel group including the low-brightness pixels at one end of the pixel group and the regular pixels at the other end, and the regular pixels are arranged away from the profiled border. An aperture area of the respective low-brightness pixels in same pixel group is gradually increased in direction from the profiled border to the display region.