Abstract: This application provides a multiplexer, a radio frequency module, and an electronic device, which are used in the field of communication. The multiplexer includes: a first link, a second link, a third link, and a fourth link. The first link includes a first filter. The second link includes a second filter. Both the first link and the second link work on a first antenna through a first port. In a transmission slot of the first signal, the third link is connected to the first port, and the third link does not work. The fourth link sends the first signal through a second port, and the second port is different from the first port. In a receiving slot of the first signal, the third link works on the first antenna through the first port. The fourth link performs primary receiving of the first signal through the second port.

Abstract: Described is an approach for tracking 3D organ motion in real-time using magnetic resonance imaging (MRI). The approach may include offline learning, which may acquire signature and 3D imaging data over multiple respiratory cycles to create a database of high-resolution 3D motion states. The approach may further include online matching, which may acquire signature data only in real-time (latency less than 0.2 seconds). From a motion state and motion signature database, the 3D motion state whose signature best (or sufficiently) matches the newly-acquired signature data may be selected. Real-time 3D motion tracking may be accomplished by performing time-consuming acquisition and reconstruction work in an offline learning phase, leaving just signature acquisition and correlation analysis in an online matching step, minimizing or otherwise reducing latency. The approach may be used to adapt radiotherapy procedures based on tumor motion using a magnetic resonance linear accelerator (MR-Linac) system.

Abstract: Surface acoustic wave (SAW) weighing apparatus and related methods are provided for measuring weight of a load employing a displaceable elastic member that is displaced by the load. A piezoelectric SAW transducer is coupled to the elastic member. The piezoelectric transducer along with an amplifier electrically coupled thereto form a delay line oscillator circuit that is configured to generate an oscillating signal in response to displacement of the elastic member by the weight of the load. A magnet is spaced from a Hall effect sensor. The magnet produces a magnetic field, and the Hall effect sensor is configured to measure strength of the magnetic field which is related to displacement of the elastic member and the weight of the load. Circuitry generates frequency data that characterizes frequency of the oscillating signal. The frequency data is related to displacement of the elastic member and the weight of the load.

Abstract: A stenosis assessment method and device based on the intracranial digital subtraction angiographic (DSA) imaging, including acquiring the intracranial DSA imaging and extracting two planar images containing the target blood vessel from the DSA imaging, wherein the two planar images have different shooting angles. According to the two planar images, a 3D model of the target vessel is established. Based on the established 3D model of the target vessel and the DSA imaging, the hemodynamic simulation of the target vessel is performed. The disclosure realizes the functional assessment of intracranial vascular stenosis, improves the diagnostic accuracy, and provides certain assistance for neurologists to determine intervention means. The disclosure of noninvasive FFR technology in the assessment of intracranial vascular stenosis can only rely on angiography for functional assessment, saving the medical examination cost of patients. It has more convenient operation and higher repeatability.

Abstract: The provided is a remote sensing observation equipment, including a base and a remote sensing observation instrument, the remote sensing observation instrument is located above the base, a lifting mechanism is arranged between the remote sensing observation instrument and the base, a sliding groove is arranged on both sides of the middle part of the base, both of the sliding grooves are slidingly assembled with sliding seats, both of the sliding seats are fixed with a first protective shell, the ends of the two first protective shells are abut against each other and located outside the remote sensing observation instrument, a fixed mechanism is arranged between the sliding seat and the sliding groove; protecting the remote sensing observation instrument through the first protective shell and the second protective shell being closed to each other, avoids the instrument being damaged by collision, and prolongs the service life of the instrument.

Abstract: Provided is a three-phase system V2O3/VN/Mo2C nanoelectrode material, and a preparation method and application thereof. The nanoelectrode material comprises V2O3 particles, VN particles, and Mo2C particles. The V2O3 particles, VN particles, and Mo2C particles are interlaced in lattice stripes and are uniformly distributed. The mass ratio of the V2O3, VN and Mo2C is (1 to 4):(10 to 40):(4 to 16). The above-mentioned three kinds of nanoparticles are intertwined to form more incoherent interface area. The increase in the area of the incoherent interface area will cause more defects, so that more active sites are provided, and the hydrogen production performance is improved.

Abstract: Described is an approach for tracking 3D organ motion in real-time using magnetic resonance imaging (MRI). The approach may include offline learning, which may acquire signature and 3D imaging data over multiple respiratory cycles to create a database of high-resolution 3D motion states. The approach may further include online matching, which may acquire signature data only in real-time (latency less than 0.2 seconds). From a motion state and motion signature database, the 3D motion state whose signature best (or sufficiently) matches the newly-acquired signature data may be selected. Real-time 3D motion tracking may be accomplished by performing time-consuming acquisition and reconstruction work in an offline learning phase, leaving just signature acquisition and correlation analysis in an online matching step, minimizing or otherwise reducing latency. The approach may be used to adapt radiotherapy procedures based on tumor motion using a magnetic resonance linear accelerator (MR-Linac) system.

Abstract: A water treatment device based on micro-nano bubble technology includes the micro-nano bubble generation device and the sewage tank, the sewage tank is also installed with water surface sewage collection mechanism and water surface sewage cleaning mechanism, the water surface sewage collection mechanism includes the pushing plate and the first transmission component, the pushing plate and the sewage tank are slidingly connected, and the pushing plate is also fixedly connected to the limit connecting rod, the water surface sewage cleaning mechanism includes the cleaning sieve plate and the sewage collecting box, and the cleaning sieve plate is vertically arranged inside the sewage tank, and the sewage tank is fixedly connected with the hinged table, the hinged table is connected with the first rotating shaft and the rear wall of the sewage tank is also equipped with the second transmission component.

Abstract: The present application relates to the technical field of electromagnetic-isolation shielding materials, and in particular to a heat-resistant nanocrystalline magnetic-isolation shielding material and a preparation method and application thereof. The preparation method includes the following steps: S1, applying a double-sided adhesive tape onto a nanocrystalline soft-magnetic alloy ribbon to prepare a adhesive-coated nanocrystalline ribbon; S2, performing primary magnet cracking treatment on the adhesive-coated nanocrystalline ribbon to obtain a single-layered nanocrystalline magnetic layer; S3, performing multi-layer combination on the single-layered nanocrystalline magnetic layer to obtain a composite, and performing stress relief treatment on the composite to obtain a multi-layered nanocrystalline magnetic layer; and S4: performing secondary magnet cracking treatment on the multi-layered nanocrystalline magnetic layer to obtain a heat-resistant nanocrystalline magnetic-isolation shielding material.

Abstract: A linear movement bistable electromagnetic switch, comprising a coil (1), a magnetic rotor (2) movably disposed in an inner hole of the coil (1), a shell (3) which wraps an outer side surface of the coil (1), and an insulating layer (4) disposed between the coil (1) and the shell (3). The magnetic rotor (2) is able to move under the effect of a magnetic field generated after the coil is energized; one end of the magnetic rotor (2) extends out of the coil (1) and is connected to a blocking piece (211) for opening/closing a loudspeaker leakage hole. The magnetic rotor is able to be extended or retracted by changing the direction of current in the coil so as to drive the blocking piece to block or open the leakage hole, such that the call distortion condition can be improved and the high-frequency sound effect will not be reduced.

Abstract: Described is an approach for tracking 3D organ motion in real-time using magnetic resonance imaging (MRI). The approach may include offline learning, which may acquire signature and 3D imaging data over multiple respiratory cycles to create a database of high-resolution 3D motion states. The approach may further include online matching, which may acquire signature data only in real-time (latency less than 0.2 seconds). From a motion state and motion signature database, the 3D motion state whose signature best (or sufficiently) matches the newly-acquired signature data may be selected. Real-time 3D motion tracking may be accomplished by performing time-consuming acquisition and reconstruction work in an offline learning phase, leaving just signature acquisition and correlation analysis in an online matching step, minimizing or otherwise reducing latency. The approach may be used to adapt radiotherapy procedures based on tumor motion using a magnetic resonance linear accelerator (MR-Linac) system.

Abstract: A device for simultaneously measuring mercury, cadmium, zinc, and lead is provided, including: a gas generating device; a quartz analysis tube connected to the gas generating device, and the quartz analysis tube includes a sample heating zone, a high-temperature packing zone and a quartz collimating tube; an atomic absorption detection device AA1 arranged behind the quartz analysis tube, where the atomic absorption detection device includes an atomic absorption detector, a flame, and a light source; a quartz catalytic tube arranged behind the atomic absorption detection device, where the quartz catalytic tube includes a flame buffer zone and an adsorption packing zone; and an atomic absorption mercury measuring device arranged behind the quartz catalytic tube, where the atomic absorption mercury measuring device includes a mercury enrichment tube, an atomic absorption detector AA2 and an air pump.

Abstract: The invention discloses a fluorescent quantitative PCR technology-based method for distinguishing human DNA, and a fluorescent quantitative PCR technology-based composition or kit for distinguishing human DNA, comprising primers and/or probes of nucleotide sequences.

Abstract: A device for simultaneously measuring mercury, cadmium, zinc, and lead is provided, including: a gas generating device; a quartz analysis tube connected to the gas generating device, and the quartz analysis tube includes a sample heating zone, a high-temperature packing zone and a quartz collimating tube; an atomic absorption detection device AA1 arranged behind the quartz analysis tube, where the atomic absorption detection device includes an atomic absorption detector, a flame, and a light source; a quartz catalytic tube arranged behind the atomic absorption detection device, where the quartz catalytic tube includes a flame buffer zone and an adsorption packing zone; and an atomic absorption mercury measuring device arranged behind the quartz catalytic tube, where the atomic absorption mercury measuring device includes a mercury enrichment tube, an atomic absorption detector AA2 and an air pump.

Abstract: A stenosis assessment method and device based on the intracranial digital subtraction angiographic (DSA) imaging, including acquiring the intracranial DSA imaging and extracting two planar images containing the target blood vessel from the DSA imaging, wherein the two planar images have different shooting angles. According to the two planar images, a 3D model of the target vessel is established. Based on the established 3D model of the target vessel and the DSA imaging, the hemodynamic simulation of the target vessel is performed. The disclosure realizes the functional assessment of intracranial vascular stenosis, improves the diagnostic accuracy, and provides certain assistance for neurologists to determine intervention means. The disclosure of noninvasive FFR technology in the assessment of intracranial vascular stenosis can only rely on angiography for functional assessment, saving the medical examination cost of patients. It has more convenient operation and higher repeatability.

Abstract: A visible-light-photocatalyzed composite light-transmitting concrete contains several bundles of optical fibers, the optical fibers are coated with a protective layer on their outer surface, the protective layer contains a visible light photocatalyst, and the concrete has several gas-permeable pores. Such concrete is prepared by mixing a visible light photocatalyst and a light-transmitting glue, applying the mixture to the surface of optical fibers to form a protective layer, and using optical fibers in the concrete. The resulting concrete has dual properties of light transmittance and photocatalytic oxidation of gas-phase pollutants under visible light irradiation. The visible-light-photocatalyzed composite light-transmitting concrete significantly breaks through the limitation of photocatalytic concrete to light sources, so that gas-phase pollutants can be removed under visible light irradiation through photocatalysis of light-transmitting concrete.

Abstract: A visible-light-photocatalyzed composite light-transmitting concrete contains several bundles of optical fibers, the optical fibers are coated with a protective layer on their outer surface, the protective layer contains a visible light photocatalyst, and the concrete has several gas-permeable pores. Such concrete is prepared by mixing a visible light photocatalyst and a light-transmitting glue, applying the mixture to the surface of optical fibers to form a protective layer, and using optical fibers in the concrete. The resulting concrete has dual properties of light transmittance and photocatalytic oxidation of gas-phase pollutants under visible light irradiation. The visible-light-photocatalyzed composite light-transmitting concrete significantly breaks through the limitation of photocatalytic concrete to light sources, so that gas-phase pollutants can be removed under visible light irradiation through photocatalysis of light-transmitting concrete.

Abstract: Described is an approach for tracking 3D organ motion in real-time using magnetic resonance imaging (MRI). The approach may include offline learning, which may acquire signature and 3D imaging data over multiple respiratory cycles to create a database of high-resolution 3D motion states. The approach may further include online matching, which may acquire signature data only in real-time (latency less than 0.2 seconds). From a motion state and motion signature database, the 3D motion state whose signature best (or sufficiently) matches the newly-acquired signature data may be selected. Real-time 3D motion tracking may be accomplished by performing time-consuming acquisition and reconstruction work in an offline learning phase, leaving just signature acquisition and correlation analysis in an online matching step, minimizing or otherwise reducing latency. The approach may be used to adapt radiotherapy procedures based on tumor motion using a magnetic resonance linear accelerator (MR-Linac) system.

Abstract: Provided is a high-efficiency vanadium nitride/molybdenum carbide heterojunction hydrogen production electrocatalyst, and a preparation method and application thereof. The electrocatalyst has a heterojunction structure formed by coupling VN and Mo2C, wherein the mass ratio of VN and Mo2C is 20:1 to 50:1. The electrocatalyst couples nano-VN and Mo2C to form a VN/Mo2C heterojunction, so that the active center is increased, and the balance of the reaction kinetics of H+ adsorption and H2 desorption is facilitated, thereby greatly improving the activity of the electrocatalyst.