Abstract: A miniature wide-angle imaging lens has a miniaturization ratio, of a total track length from the center of a first surface to a focal plane by an image circle diameter, with a value less than 3.0. The imaging lens includes, starting from an object side of the lens, a first group of at least three optical elements, a second group including an aperture stop and an optical element immediately in front of or behind the aperture stop, and a third group of at least two optical elements.

Abstract: Disclosed is a label printer and a control method thereof. The label printer includes a paper cartridge configured to hold a label roll paper unit including a tube core and a continuous paper, wherein the tube core is provided with an RFID tag; an RFID reader configured to read information stored on the RFID tag; and a controller configured to detect whether the RFID reader reads the stored information of the RFID tag when the label roll paper unit is in an initial position, and if the RFID reader is unable to read the stored information of the RFID tag, the controller controls the label roll paper unit to rotate and drive the RFID tag to rotate, and controls the RFID reader to continuously read the RFID tag during rotating until the RFID reader is able to read the stored information.

Abstract: A semiconductor device includes a substrate; a gate structure, located over the substrate, the gate structure including a first gate oxide layer, a second gate oxide layer, and a silicon layer. The first gate oxide layer is over the substrate, and the first gate oxide layer has a sloped sidewall on one side and a vertical sidewall on another side. The second gate oxide layer is over the substrate and on the sloped sidewall of the first gate oxide layer, and a thickness of the second gate oxide layer is less than a thickness of the first gate oxide layer. The silicon layer is formed over the first gate oxide layer and the second gate oxide layer.

Abstract: A flyback converter and an output voltage acquisition method therefor and apparatus thereof, wherein the output voltage acquisition method comprises the following steps: acquiring the reference output voltage of a flyback converter; sampling the current output voltage of the flyback converter within a reset time of each switching period among M continuous switching periods of the flyback converter, wherein M is a positive integer; and according to the reference output voltage and the current output voltage, sampling a dichotomy to successively approximate the current output voltage until the M switching periods are finished, and acquiring the output voltage of the flyback converter.

Abstract: A miniature wide-angle imaging lens has a miniaturization ratio, of a total track length from the center of a first surface to a focal plane by an image circle diameter, with a value less than 3.0. The imaging lens includes, starting from an object side of the lens, a first group of at least three optical elements, a second group including an aperture stop and an optical element immediately in front of or behind the aperture stop, and a third group of at least two optical elements.

Abstract: Provided are a composite material and a preparation method therefor. The composite material comprises: a base layer; a first plant fibre fabric located on the upper surface of the base layer; optionally, a second plant fibre fabric located on the lower surface of the base layer; and resins present in each layer. The composite material has a decorative performance and an improved mechanical performance.

Abstract: 1H-pyrazolo[4,3-g]isoquinoline and 1H-pyrazolo[4,3-g]quinoline derivatives as alpha-1-antitrypsin modulators for treating alpha-1-antitrypsin deficiency (AATD).

Abstract: Indole derivatives as alpha-1-antitrypsin modulators for treating alpha-1-antitrypsin deficiency (AATD).

Abstract: The present disclosure discloses a lighting device, including a base, a cover and a lighting module, the cover is disposed on the base, and a receiving chamber is formed between the cover and the base; the lighting module includes a light source module and a driving power source, the light source module is rotatably disposed on a side wall of the base, the driving power source is disposed in the receiving chamber, and the light source module is connected with the driving power source.

Abstract: This invention provides improved methods for generation of hematopoietic precursor cells from a pluripotent stem cell and hematopoietic precursor cells generated thereof. The hematopoietic precursor cells express CXCR4 or runx1c and are capable of homing and/or engraftment in bone marrow.

Abstract: A mounting base of a lamp, a lighting assembly, and a lamp are provided. The mounting base is configured to be in detachable connection with a plurality of lighting assemblies, the mounting base includes at least one mounting portion and a plurality of first electrical terminals fixed on the mounting portion, and the plurality of first electrical terminals on each mounting portion are configured to be in plug-in fit with a plurality of second electrical terminals of the lighting assemblies in one-to-one correspondence. The plurality of first electrical terminals are configured to supply power to the plurality of lighting assemblies when plugged in with the plurality of second electrical terminals.