Abstract: A Surface Acoustic Wave (SAW) Impedance Element Filter (IEF) comprises a cascade of Gamma sections. Each of the Gamma sections comprises a series SAW resonator and a shunt SAW resonator deposited in a surface of a piezoelectric substrate with an additional capacity connected in parallel to the shunt SAW resonator. All the series and shunt SAW resonators have pitches (P) which are substantially equivalent. The SAW IEF has smaller bandwidth to satisfy some specific applications.

Abstract: A coal uncovering construction method for blasting large cross-section gas tunnels includes: analyzing stress distribution characteristics in front of a tunnel boring working face, and then determining a thickness calculation model of a reserved rock wall based on a limit equilibrium theory; establishing a tunnel model, simulating a construction condition and analyzing a construction result, and determining a thickness of the reserved rock wall; and fixing a detonator through a fixed sand ring, fitting the detonator with a construction hole by adjusting an adjustable protective plate, then embedding the detonator into a blast hole, and blasting the detonator for tunnel construction. Furthermore, an extension ring is fixed between the fixed sand ring and the adjustable protective plate.

Abstract: An interferometric microphone calibrator for comparison calibrating a microphone, the interferometric microphone calibrator comprising: an interferometer in optical communication with a microphone and that produces an interferometer measurement light, communicates the interferometer measurement light to the microphone, and receives an interferometer backscattered light from the microphone, such that a sensitivity of a test microphone is interferometrically calibrated to a reference microphone from the interferometer backscattered light; a preamplifier-controller in electrical communication with the microphone, and that receives a driver signal from a microphone driver and drives the microphone driver; the microphone driver in electrical communication with the preamplifier-controller and that receives a driver control signal from a calibration controller and produces the driver signal based on the driver control signal; and a calibration controller in electrical communication with the microphone driver and tha

Abstract: A stroke erasing method, a terminal device, and a computer-readable storage medium are disclosed. The method may include: determining an intersecting stroke on an electronic whiteboard that intersects with an erasing region; traversing each of collection points of the intersecting stroke to determine whether a line of connection between each two adjacent ones of the collection points intersects with the erasing region; determining, in response to the line of connection intersecting with the erasing region, an approximate intersection point between the line of connection and the erasing region by means of midpoint recursion; and splitting the intersecting stroke into segments according to the approximate intersection point, and drawing the segments not erased by the erasing region.

Abstract: A coal uncovering construction method for blasting large cross-section gas tunnels includes: analyzing stress distribution characteristics in front of a tunnel boring working face, and then determining a thickness calculation model of a reserved rock wall based on a limit equilibrium theory; establishing a tunnel model, simulating a construction condition and analyzing a construction result, and determining a thickness of the reserved rock wall; and fixing a detonator through a fixed sand ring, fitting the detonator with a construction hole by adjusting an adjustable protective plate, then embedding the detonator into a blast hole, and blasting the detonator for tunnel construction. Furthermore, an extension ring is fixed between the fixed sand ring and the adjustable protective plate.

Abstract: An interferometric microphone calibrator for comparison calibrating a microphone, the interferometric microphone calibrator comprising: an interferometer in optical communication with a microphone and that produces an interferometer measurement light, communicates the interferometer measurement light to the microphone, and receives an interferometer backscattered light from the microphone, such that a sensitivity of a test microphone is interferometrically calibrated to a reference microphone from the interferometer backscattered light; a preamplifier-controller in electrical communication with the microphone, and that receives a driver signal from a microphone driver and drives the microphone driver; the microphone driver in electrical communication with the preamplifier-controller and that receives a driver control signal from a calibration controller and produces the driver signal based on the driver control signal; and a calibration controller in electrical communication with the microphone driver and tha

Abstract: A stroke erasing method, a terminal device, and a computer-readable storage medium are disclosed. The method may include: determining an intersecting stroke on an electronic whiteboard that intersects with an erasing region; traversing each of collection points of the intersecting stroke to determine whether a line of connection between each two adjacent ones of the collection points intersects with the erasing region; determining, in response to the line of connection intersecting with the erasing region, an approximate intersection point between the line of connection and the erasing region by means of midpoint recursion; and splitting the intersecting stroke into segments according to the approximate intersection point, and drawing the segments not erased by the erasing region.

Abstract: The present application relates to a method for cleaning, detoxifying and cells and tissues preservation of a fresh animal liver, comprising the following steps: taking out a whole fresh liver from an animal body quickly and removing the gallbladder, with blood vessels in first porta hepatis of the liver being retained; dissecting quickly and determining portal vein, biliary tract, hepatic artery and upper and lower ends of the inferior vena cava, and then inserting disinfected medical catheters into blood vessels of the portal vein, the biliary tract and blood vessels of the hepatic artery; perfusing a perfusate into the catheters, eliminating macrophages and other immune cells containing a large number of toxins, blood and harmful substances in the liver continuously and flushing bitter bile out from the biliary tract meantime; and completing processing of the liver when the fresh liver becomes white from blood red.

Abstract: An improved cruise control system is configured to be retrofit with an electrical mobility scooter. The cruise control system has module that is a self-contained unit, comprising an assembly of electronic components and associated wiring, including a processor and memory with software for processing by the processor, which performs defined tasks, and which is linked with the scooter controller, power supply and scooter throttle control.

Abstract: The present application relates to a detoxified animal liver food product suitable for infants, the detoxified animal liver is obtained by the method as below: taking out a whole fresh liver from an animal body quickly and removing the gallbladder, dissecting the first porta hepatis of the liver quickly, and inserting disinfected medical catheters into blood vessels of the portal vein, the biliary tract and blood vessels of the hepatic artery; perfusing a perfusate into the catheters, eliminating macrophages and other immune cells containing a large number of toxins, blood and harmful substances in the liver continuously and flushing bitter bile out from the biliary tract; and completing processing of the liver when the fresh liver becomes white from blood red.

Abstract: The invention generally relates to articles and methods of making thereof. More specifically, articles comprising a substrate and a film deposited on the substrate, wherein the article is bendable to a bending diameter of about 3.8 mm or less without substantial structural failure of the film. Further, methods of making these articles are further disclosed. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: An improved cruise control system is configured to be retrofit with an electrical mobility scooter. The cruise control system has module that is a self-contained unit, comprising an assembly of electronic components and associated wiring, including a processor and memory with software for processing by the processor, which performs defined tasks, and which is linked with the scooter controller, power supply and scooter throttle control.

Abstract: A riser assembly and method of producing a riser assembly are disclosed. The riser assembly includes a riser having a plurality of buoyancy elements provided at predetermined intervals along the length of the riser for supporting the riser, and at least one further buoyancy element arranged to support the riser in a configuration for accommodating tension changes in the riser due to vessel movement.