Abstract: Disclosed is a compound method of shear-wave elastography (SWE) and quasi-static elastography (QSE). The method includes: firstly, pre-scanning is carried out on a target region to obtain a rough comparison relation curve, then real-time scanning is carried out. The rough comparison relation curve is optimized and corrected to obtain an accurate comparison relation curve. Finally, the real-time shear modulus of a large area is calculated according to the real-time elastic relative value of the large area, so that accurate real-time elastography is realized.

Abstract: The present invention provides a method for determining a failure cause of a salt chlorinator for a swimming pool, includes: determining whether a water quality test report of swimming pool water can be provided; and if not, proceeding: determining whether there is a problem with the salt chlorinator, where the determining whether there is a problem with the salt chlorinator includes determining whether there is a posed problem and/or determining electrode life, includes: determining whether there is the posed problem; performing calculation based on a posed problem determining formula and determining whether a value thereof is greater than 0; and if not, outputting a first alarm signal; and determining electrode life; performing calculation based on an electrode life determining formula, and determining whether a value is less than a threshold A; and if not, determining that the electrode life is to be exhausted, and outputting a second alarm signal.

Abstract: Disclosed are a convex-linear bi-plane probe and its application method in prostate volume calculation. The present invention adopts the following technical solution: comprising a probe housing and a probe assembly contained in the probe housing, the probe assembly comprising a linear probe and a convex probe contained at the end of the linear probe, with the linear element inside the linear probe and the convex element inside the convex probe connected as one piece. The benefits of the present invention are that: by setting a convex probe at the end of the linear probe, and by connecting the linear element and the convex element as one, the volume of the probe can be significantly reduced. Furthermore, the use of convex-linear biplane probe and its integrated design collect two orthogonal ultrasound images of the prostate, which improves the accuracy of prostate volume calculation.

Abstract: A polarity reversal method for an electrode device based on an unstable power supply is provided. The electrode device includes electrodes, an unstable power supply, a polarity reversal module, and a control module, the unstable power supply supplies power to the electrode through the polarity reversal module, and the control module controls the polarity reversal module to implement polarity reversal on the electrodes. The polarity reversal method includes: at least in a stage in which a reverse voltage is eliminated for the electrodes when polarity reversal is performed on the electrode device based on the unstable power supply, limiting the amount of electric energy transmitted by the unstable power supply to the electrodes, or controlling a stable power supply to be connected to supply power to the electrodes, to ensure electric energy required for operation of the control module in the electrode device based on the unstable power supply.

Abstract: Disclosed are an extended U-Net for multi-information extraction and an application method thereof in low-dose X-ray imaging. The follow technical solution is adopted: expanding the number of output channels in upsampling of a U-Net model, adding a fully connected layer at the end to realize extraction and superposition calculation of multiple information, processing low-dose X-ray images by using the extended U-Net, and taking normalized images, noise and image salient features as outputs for learning and training.

Abstract: Disclosed is an ultrasonic Doppler flow imaging method. The method includes: using eigen decomposition on an ultrasonic image to obtain eigenvectors matrices with different power values, so that the SNR and power distribution of each point of the ultrasonic image are calculated, thereby accurately extracting flow data with high reliability and obtaining accurate and stable flow images. The method has the beneficial effects of filtering out tissue signals and noise signals on the characteristic dimension, so as to better extract flow data by using eigen decomposition on ultrasonic images, retaining complete flow data and providing stable and clear imaging of fine flow without the need of contrast agent injection that may cause injuries to human bodies.

Abstract: Disclosed is a compound method of shear-wave elastography (SWE) and quasi-static elastography (QSE). The method includes: firstly, pre-scanning is carried out on a target region to obtain a rough comparison relation curve, then real-time scanning is carried out. The rough comparison relation curve is optimized and corrected to obtain an accurate comparison relation curve. Finally, the real-time shear modulus of a large area is calculated according to the real-time elastic relative value of the large area, so that accurate real-time elastography is realized.

Abstract: Disclosed are a convex-linear bi-plane probe and its application method in prostate volume calculation. The present invention adopts the following technical solution: comprising a probe housing and a probe assembly contained in the probe housing, the probe assembly comprising a linear probe and a convex probe contained at the end of the linear probe, with the linear element inside the linear probe and the convex element inside the convex probe connected as one piece. The benefits of the present invention are that: by setting a convex probe at the end of the linear probe, and by connecting the linear element and the convex element as one, the volume of the probe can be significantly reduced. Furthermore, the use of convex-linear biplane probe and its integrated design collect two orthogonal ultrasound images of the prostate, which improves the accuracy of prostate volume calculation.

Abstract: The technology relates in part to production (i.e., expression) of recombinant viral fusion glycoproteins and nucleic acids that encode such viral fusion glycoproteins. In some embodiments, human respiratory syncytial virus fusion protein (RSV-F) and human parainfluenza virus 3 fusion protein (hPIV3-F) are expressed.

Abstract: A method of forming printed circuit boards and packaging substrates. After blind vias are created in a dielectric layer, a first seed layer is provided in the vias and on the dielectric layer. Copper is applied to fill the vias and to form a copper layer over the vias and over the first seed layer. The first seed layer and the copper layer are removed and a second seed layer is formed on the dielectric layer and the exposed surfaces of the vias. A wire pattern is then formed using a photo-sensitive thin film applied to the second seed layer, and the wires in the wire pattern are thickened. The photo-sensitive thin film and the exposed portions of the second seed layer are removed to form a first conductive pattern of wires. The process may be repeated to form a second conductive pattern of wires on the first pattern.

Abstract: A method of forming printed circuit boards and packaging substrates for integrated circuits based on filling-vias plating and a semi-additive process, comprising the following steps: (1) providing a dielectric layer on a substrate; (2) providing blind vias on said dielectric layer; (3) providing a first seed layer after providing blind vias; (4) providing solid conductive vias by a filling-vias plating process after providing a first seed layer, and also providing a copper layer covering the first seed layer during the filling-vias plating process; (5) removing said first seed layer as well as the copper layer formed thereon, and retaining solid copper pillars in the conductive vias; (6) providing a second seed layer which is used to form wires by a semi-additive process; (7) providing a photo-sensitive thin film, and providing a plating resistant layer by image-transfer to expose a wire pattern; (8) thickening wires; (9) removing the photo-sensitive thin film; (10) removing the exposed second seed layer and