Abstract: A method for extracting and correcting a ringing component in a dynamic pressure measurement signal of a shock wave flow field includes: adaptively decomposing a dynamic pressure measurement signal of a shock wave flow field through an empirical mode decomposition (EMD) method, and extracting a ringing component in the dynamic pressure measurement signal of the shock wave flow field; constructing a ringing component distortion correction model through a convolutional neural network (CNN) and a dataset through a staggered spanning dataset construction method; and predicting a time series of a segment with mode mixing in the ringing component, to accurately extract a ringing component in a dynamic pressure response signal. The method combines advantages of an adaptive signal decomposition method and a CNN model identification method.

Abstract: A fast calibration test system and method for a phased-array antenna, which belongs to the technical field of antenna measurement, relates to a near-field test system, and relates in particular to the fast calibration and a directional diagram test on a phased-array antenna.

Abstract: A self-centering cable includes a restoring and energy-dissipation unit and a cable reinforcement connected to the restoring and energy-dissipation unit by a connecting unit. The restoring and energy-dissipation unit includes an outer trough, an axial tube provided in an opening at the upper end of the outer trough, two inverted U-shaped mild steel members provided side by side and fixedly mounted in the outer trough, an axial pallet sandwiched between and fixedly connected to the two inverted U-shaped mild steel members, and a disc spring set provided in the outer trough and sleeved onto the axial tube. The cable reinforcement includes a tensile reinforcement penetrating into a reinforcement bottom connector and a reinforcement top connector. The reinforcement bottom connector is connected to the axial tube, the top end connector, connected to the reinforcement top connector, and a bottom end connector are connected to a structure to be reinforced.

Abstract: A self-centering cable includes a restoring and energy-dissipation unit and a cable reinforcement connected to the restoring and energy-dissipation unit by a connecting unit. The restoring and energy-dissipation unit includes an outer trough, an axial tube provided in an opening at the upper end of the outer trough, two inverted U-shaped mild steel members provided side by side and fixedly mounted in the outer trough, an axial pallet sandwiched between and fixedly connected to the two inverted U-shaped mild steel members, and a disc spring set provided in the outer trough and sleeved onto the axial tube. The cable reinforcement includes a tensile reinforcement penetrating into a reinforcement bottom connector and a reinforcement top connector. The reinforcement bottom connector is connected to the axial tube, the top end connector, connected to the reinforcement top connector, and a bottom end connector are connected to a structure to be reinforced.

Abstract: Different components of natural oils are separated by forming solid complexes of components of the natural oil with a solvent, and then separating the solid complexes from the remaining liquids. The natural oil is cooled in the presence of a solvent, and at least one component of the oil forms the solid complex with the solvent. This solid complex is separated from the remaining liquid portion of the oil solution, which also contains the solvent. Additional options concentration steps can further concentrate the components left in the liquid phase.

Abstract: Different components of natural oils are separated by forming solid complexes of components of the natural oil with a solvent, and then separating the solid complexes from the remaining liquids. The natural oil is cooled in the presence of a solvent, and at least one component of the oil forms the solid complex with the solvent. This solid complex is separated from the remaining liquid portion of the oil solution, which also contains the solvent. Additional options concentration steps can further concentrate the components left in the liquid phase.

Abstract: A high-frequency and low-dielectric-constant ceramic dielectric material matched with nickel internal electrode and a method for producing capacitor using same. The ceramic dielectric material consists of main crystalline phase, modifying additive and sintering flux. The main crystalline phase is MgZrxSi(1?x)O3, wherein 0.05?x?0.15. The modifying additive is one or more of MnO2, Al2O3, CaO, Bi2O3 and TiO2, and the sintering flux is one or more of B2O3, SiO2, ZnO, Li2O, K2O and BaO. The ceramic dielectric material has good uniformity, and excellent dielectric properties, meets the requirements of COG characteristics in EIA standard, and meets the environmental requirements. The ceramic dielectric material can be sintered under the reducing atmosphere and can be matched with nickel electrodes. The chip multilayer ceramic capacitor made of the ceramic dielectric material and nickel internal electrodes has stable performance.

Abstract: Provided is an anti-reductive high-frequency ceramic dielectric material sintered at low temperature and matched with copper internal electrode, which can be used for producing multi-layer ceramic capacitor with a copper internal electrode. The ceramic dielectric material consists of main crystalline phase, modifying additive and sintering flux. The formula of the main crystalline phase is MgxBa(1-x)ZrySi(1-y)O3, wherein 0.8?x?0.95, 0.05?y?0.2. The modifying additive is one or more of MnO2, CaO, Li2O, Bi2O3 and TiO2, and the sintering flux is one or more of B2O3, SiO2, ZnO, CuO, K2O and BaO. The ceramic dielectric material meets the requirements of COG characteristics by EIA standard, has such characteristics as uniform particle size distribution, high dispersiveness, optimized molding process, eco-friendliness and excellent dielectric properties.

Abstract: There is a closure member for rotating or reciprocating movement between upstream and downstream passageways of a valve. A device, which consists of two or more elongated tubes whose cross sections form up into one or more files in moving direction of the closure member to divide the upstream passageway into many channels capable of leading the fluid to flow through, is disposed in the upstream passageway of the valve upstream of the closure member, consequently the upstream surface of the closure member can respectively open or close each channel in sequence while the closure member is rotating or reciprocating in the valve.

Abstract: Different components of natural oils are separated by forming solid complexes of components of the natural oil with a solvent, and then separating the solid complexes from the remaining liquids. The natural oil is cooled in the presence of a solvent, and at least one component of the oil forms the solid complex with the solvent. This solid complex is separated from the remaining liquid portion of the oil solution, which also contains the solvent. Additional options concentration steps can further concentrate the components left in the liquid phase.

Abstract: A high-frequency and low-dielectric-constant ceramic dielectric material matched with nicket internal electrode and a method for producing capacitor using same. The ceramic dielectric material consists of main crystalline phase, modifying additive and sintering flux. The main crystalline phase is MgZrxSi(1?x)O3, wherein 0.05?x?0.15. The modifying additive is one or more of MnO2, Al2O3, CaO, Bi2O3 and TiO2, and the sintering flux is one or more of B2O3, SiO2, ZnO, Li2O, K2O and BaO. The ceramic dielectric material has good uniformity, and excellent dielectric properties, meets the requirements of COG characteristics in EIA standard, and meets the environmental requirements. The ceramic dielectric material can be sintered under the reducing atmosphere and can be matched with nickel electrodes. The chip multilayer ceramic capacitor made of the ceramic dielectric material and nickel internal electrodes has stable performance.

Abstract: Provided is an anti-reductive high-frequency ceramic dielectric material sintered at low temperature and matched with copper internal electrode, which can be used for producing multi-layer ceramic capacitor with a copper internal electrode. The ceramic dielectric material consists of main crystalline phase, modifying additive and sintering flux. The formula of the main crystalline phase is MgxBa(1?x)ZrySi(1?y)O3, wherein 0.8?0.95, 0.05?y?0.2. The modifying additive is one or more of MnO2, CaO, Li2O, Bi2O3 and TiO2, and the sintering flux is one or more of B2O3, SiO2, ZnO, CuO, K2O and BaO. The ceramic dielectric material meets the requirements of COG characteristics by EIA standard, has such characteristics as uniform particle size distribution, high dispersiveness, optimized molding process, eco-friendliness and excellent dielectric properties.

Abstract: An upstream seat ring and an auxiliary seat ring, which improve valve's capability resistant to erosion by the fluid carrying solid particles or containing liquid drops. One end of the auxiliary seat ring passes through bore of the upstream seat ring and the other end is fixed in the pocket of the valve upstream passageway. There are many bar barriers or analogous mechanism with rectangular, tooth-like or any other geometrical shapes cross-section around the circumferential surface of their bores, which are radially concaved inward or projected outward from the circumferential surface, are longitudinally extended an overall distance from one radial end face of the seats to opposite radial end face or a distance from the radial end face next to the upstream surface of the valve closure member towards the opposite radial end face, and spaced each other radially.

Abstract: A ball valve or any other type of valve in which sealing surface of the seat ring and surface of closure member keep relative sliding contact during opening and closing movement of the valves. One or more annular grooves cut into sealing surface of the seat ring around it's bore are filled with lubricant or grease used for lubricating the surfaces so as to avoid or mitigate their abrasive wear or galling caused by frictional heat.

Abstract: The invention provides certain compounds and salts of Formula I and Formula II: which possess antimicrobial activity. The invention also provides novel synthetic intermediates useful in making compounds of Formula I and Formula II. The variables A1, R2, R3, R5, R6, R7, A8 and R9 are defined herein. Certain compounds of Formula I and Formula II disclosed herein are potent and selective inhibitors of bacterial DNA synthesis and bacterial replication. The invention also provides antimicrobial compositions, including pharmaceutical compositions, containing one or more compounds of Formula I or Formula II and one or more carriers, excipients, or diluents. Such compositions may contain a compound of Formula I or Formula II as the only active agent or may contain a combination of a compound of Formula I or Formula II and one or more other active agents. The invention also provides methods for treating microbial infections in animals.

Abstract: The invention provides certain compounds and salts of Formula I and Formula II: which possess antimicrobial activity. The invention also provides novel synthetic intermediates useful in making compounds of Formula I and Formula II. The variables A1, R2, R3, R5, R6, R7, A8 and R9 are defined herein.

Abstract: A ball valve or any other type of valve in which sealing surface of the seat ring and surface of closure member keep relative sliding contact during opening and closing movement of the valves. One or more annular grooves cut into sealing surface of the seat ring around it's bore are filled with lubricant or grease used for lubricating the surfaces so as to avoid or mitigate their abrasive wear or galling caused by frictional heat.

Abstract: This invention pertains to the discovery of a novel family of thiolesters and uses thereof. Also provided for are viricidal compounds and pharmaceutical formulations comprising these novel thiolesters. The invention also provides thiolester-inactivated viruses and thiolester-complexed viral proteins.

Abstract: There is a closure member for rotating or reciprocating movement between upstream and downstream passageways of a valve. A device, which consists of two or more elongated tubes whose cross sections form up into one or more files in moving direction of the closure member to divide the upstream passageway into many channels capable of leading the fluid to flow through, is disposed in the upstream passageway of the valve upstream of the closure member, consequently the upstream surface of the closure member can respectively open or close each channel in sequence while the closure member is rotating or reciprocating in the valve.

Abstract: An upstream seat ring and an auxiliary seat ring, which improve valve's capability resistant to erosion by the fluid carrying solid particles or containing liquid drops. One end of the auxiliary seat ring passes through bore of the upstream seat ring and the other end is fixed in the pocket of the valve upstream passageway. There are many bar barriers or analogous mechanism with rectangular, tooth-like or any other geometrical shapes cross-section around the circumferential surface of their bores, which are radially concaved inward or projected outward from the circumferential surface, are longitudinally extended an overall distance from one radial end face of the seats to opposite radial end face or a distance from the radial end face next to the upstream surface of the valve closure member towards the opposite radial end face, and spaced each other radially.