Abstract: An optical film has a major surface including a plurality of microstructures. Each microstructure includes an optical facet and a sidewall meeting the optical facet at a ridge of the microstructure. The optical facet and the sidewall define an oblique angle therebetween. For each microstructure in at least a majority of the microstructures, an optically absorptive layer is disposed on the sidewall. The optical film can include a polymeric layer having a microstructured surface at least partially coated with an inorganic optically transparent layer. The optically absorptive layer can an average thickness t where 100 nm<t<1 micrometer. A first layer can be disposed between the sidewall and the optically absorptive layer where the first layer has a lower extinction coefficient than the optically absorptive layer.

Abstract: Provided are a vibration object monitoring method and apparatus, a computer device, and a storage medium. The method includes: in response to detecting that a vibration object exists in a monitoring video picture for a target monitoring region, a vibration object region in the monitoring video picture is determined, where the vibration object region is a region where the vibration object is located in the monitoring video picture; displacement information of a key point of the vibration object in the vibration object region is recorded; vibration information of the vibration object in the monitoring video picture is determined based on the displacement information; and a vibration object monitoring result for the target monitoring region is generated according to the vibration information. The abnormal vibration monitoring can be performed on the vibration object in the target monitoring region in time according to this method.

Abstract: Disclosed are a catalyst component and a catalyst for olefin polymerization, and an olefin polymerization method. The catalyst component comprises magnesium, titanium, a halogen and an internal electron donor, wherein the internal electron donor comprises a monocarboxylic acid ester compound and a diether compound, and the molar ratio of the monocarboxylic acid ester compound to the diether compound is (0.0035-0.7):1. By using the catalyst, a polymer having both a high isotactic index and a high melt flow index can be prepared.

Abstract: A photovoltaic building material, which can safely generate electric power with solar power energy is disclosed. The photovoltaic building material can be used as building material, and can be directly installed on the fixed part of the building, such as roof, wall or decoration materials on the surface of building. The photovoltaic building material is accord with the architectural requirements of waterproof, fireproof, load-carrying ability, durability and heat-insulation. When this invention is installed on the roof, the automatic spraying device can be set up on the height of ridge, which realizes the functions of roof cleaning and cooling down by the automatic water spraying. Also, with the auxiliary device, this invention can intensify the ability to withstand strong winds for roof, and can ensure safety in the typhoon/hurricane area.

Abstract: Described herein are compounds that activate pyruvate kinase R, pharmaceutical compositions and methods of use thereof. These compounds are represented by Formula (I): wherein R1, R2, L1, and L2 are as defined herein.

Abstract: A transmission line phase shifter, a system, a chip, and a radar sensor are provided. The transmission line phase shifter includes at least one transmission line phase-shifting unit. A respective transmission line phase-shifting unit includes a first pair of differential transmission lines, a second pair of differential transmission lines, and a phase adjusting circuit. The phase adjusting circuit is configured to adjust electrical parameters of a transmission path where at least one pair of transmission lines of the first pair of differential transmission lines and the second pair of differential transmission lines is located according to at least one phase shifting control signal received, so as to enable that a RF signal output from the respective transmission line phase-shifting unit has a phase shift of a first phase or a second phase relative to an input RF signal of the respective transmission line phase-shifting unit.

Abstract: A device including a housing that is substantially impermeable to ultraviolet radiation having a wavelength of from 280 nm to 400 nm, and at least one window defined in the housing, the window including a UV-C radiation band-pass mirror film having a multiplicity of alternating first and second optical layers collectively transmitting UV-C radiation at a wavelength from at least 100 nm to less than 280 nm and not transmitting UV-A and UV-B radiation at a wavelength of from 280 nm to 400 nm, and an ultraviolet radiation source positioned within the housing, the ultraviolet radiation source being capable of emitting ultraviolet radiation at one or more wavelength from 100 nm to 400 nm. The device optionally further includes an ultraviolet mirror film positioned within the housing so as to reflect ultraviolet radiation emitted by the ultraviolet radiation source. A method of disinfecting a material is also disclosed.

Abstract: A phase shifting system, a chip, and a radar sensor are provided. A respective transmission line phase-shifting unit is configured to receive at least one phase shifting control signal and to shift a phase of a RF signal by a first phase or a second phase. Each transmission line phase-shifting unit includes a first group of transmission lines and a second group of transmission lines. At least some transmission lines in the first group of transmission lines of each transmission line phase-shifting unit are physically isolated from at least some transmission lines in the first group of transmission lines of an adjacent transmission line phase-shifting unit and transmission lines of the second group of transmission lines of each transmission line phase-shifting unit are coupled to respective transmission lines of the second group of transmission lines of an adjacent transmission line phase-shifting unit.

Abstract: Disclosed are a method and a device of dynamic PET scanning, and a computer apparatus. The method includes: performing a PET scan on a target region of a scanned object, and acquiring first PET-scan data including a single-event count received by a PET detector (S101); determining a single-event count distribution in the target region according to the first PET-scan data (S102); adjusting a position of a scanning table according to the single-event count distribution (S103); and performing a PET scan on the scanned object according to the adjusted position of the scanning table (S104). The method achieves a dynamic correlation between the position of the scanning table and changes of a tracer within the scanned object, so that more accurate scanned data can be obtained.

Abstract: An optical system includes a light source, an optical film curved about a first axis, and a light control film curved about the first axis and disposed between the light source and the optical film. The optical film includes a microstructured first major surface and an opposing second major surface. The microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending longitudinally along the first axis. The first major surface of the optical film faces of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.

Abstract: A transmission line phase shifter, a chip, and a radar sensor are provided. The transmission line phase shifter includes at least one transmission line phase-shifting unit. At a calibration stage, a preset number of transmission line phase-shifting units are configured to be in a state of a first phase or in a state of a second phase and configured to output an output RF signal, such that phase calibration information of each transmission line phase-shifting unit is determinable. At an operation stage, the phase adjusting circuit of the respective transmission line phase-shifting unit is configured to receive a corresponding phase shifting control signal and to adjust the respective transmission line phase-shifting unit, to enable the respective transmission line phase-shifting unit to shift a phase of an input RF signal by a calibrated first phase or a calibrated second phase.

Abstract: The present invention relates to a method for preparing high-purity vanadium pentoxide from vanadium-bearing shale by all-wet process. The technical solution is: the “Gradient continuous leaching system of vanadium-bearing shale” is used to wet activate and compound leach vanadium-bearing shale to obtain vanadium-containing acid leachate. The “pH adjusting device of the vanadium-containing acid leachate” is used to adjust the pH of vanadium-containing acid leaching leachate. The post-treatment solution is subjected to hydroxime countercurrent extraction after oxidation, and the raffinate returns to the water using in the wet activation and electrodialysis after neutralization, and the loaded organic phase is regenerated by countercurrent reduction stripping. The regenerated organic phase directly returns to hydroxime countercurrent extraction.

Abstract: The present application discloses a low voltage triggering silicon controlled rectifier which includes: an N well and a P well forming a PN junction, a first P+ region formed in the N well and connected to an anode, and a first N+ region formed in the P well and connected to a cathode. A second P+ region is formed in the N well at the PN junction and diffuses into the P well. A second N+ region is formed in the P well at the PN junction and diffuses into the N well. A first gate structure connected to the anode is formed at the surface of the N well between the first and second P+ regions; and a second gate structure connected to the cathode is formed at the surface of the P well between the first and second N+ regions.

Abstract: A radio frequency (RF) inverter, a transmission line phase shifter, a system, a chip, and a radar sensor are provided. The RF inverter includes an inductance circuit and a first phase adjusting circuit that both are arranged symmetrically along a same symmetry axis. The inductance circuit includes a single-ended signal interface and a differential signal interface. The first phase adjusting circuit includes two controlled switches, and each controlled switch is connected between the ground wire and a corresponding ground terminal of a pair of ground terminals in the single-ended signal interface, to enable the inductance circuit to perform in-phase or inverting phase shifting on a received RF signal.

Abstract: A warning device (100, 212, 301, 302, 510) for use in a luminaire (201, 410, 501), comprising a housing (110, 210, 310) accommodating a drive module (115, 215, 401, 402, 520) arranged to be coupled to a luminaire and to a mains voltage (260, 560). The drive module comprises a light source (120, 420) coupled to a switch (180, 380, 491, 492) and an electrical interface (140, 240) configured to electrically connect the drive module and the mains voltage to a light element (530) of the luminaire. The housing comprises a lid (130, 230, 330) operably coupled to the switch of the drive module and configured to activate the switch upon an opening of the lid for switching on the light source upon a current of the mains voltage passing in the electrical interface and deactivate the switch module upon a closing of the lid for switching off the light source.

Abstract: A method for screening pesticide residues in medicine food homology (MFH) characteristic agricultural products includes step 1, a liquid chromatography-mass spectrometry database of pesticides is constructed, standard solution are prepared for the pesticides and liquid chromatography and mass spectrometry are used to detect the standard solutions; step 2, a sample is processed and then is detected to obtain a liquid chromatography-mass spectrogram; step 3, the liquid chromatography-mass spectrogram obtained from step 2 and liquid chromatography-mass spectrograms in the liquid chromatography-mass spectrometry database obtained from step 1 are compared and analyzed individually.

Abstract: The present application discloses an MV device, wherein a first gate structure of the MV device is formed by stacking a first gate dielectric layer and a first gate conductive material layer. The first gate dielectric layer is divided into a body gate dielectric layer and an edge gate dielectric layer. The body gate dielectric layer is located in a middle region, and the edge gate dielectric layer surrounds the periphery of the body gate dielectric layer. A channel region is located in a surface of the semiconductor substrate between the lightly doped drain regions on the two sides of the first gate structure. In a channel length direction, the top of the channel region is covered by the body gate dielectric layer. The present application also discloses a method for manufacturing the MV device.

Abstract: In some examples, an electronic device includes a light guide. In some examples, the light guide includes a facial side and a rear side. In some examples, the facial side includes a lens to focus incoming light. In some examples, the rear side includes exit features to guide outgoing light. In some examples, the electronic device includes an image sensor disposed behind the lens to capture the incoming light.