Abstract: Copper-tin-nickel brazing material prepared by alloys recycled from E-waste, preparation method therefor, and system thereof are provided. A preparation method for the copper-tin-nickel brazing material includes the following steps: (a) spreading nano-SiO2 on the bottom of crucible and then adding a crude copper-tin-iron-nickel alloy recycled from E-waste; (b) heating the crucible to melt the crude alloy into a metal liquid so that Zn and Pb in the metal liquid react with the SiO2 to form a slag that floats out; (c) introducing a refining gas to the bottom of metal liquid in step (b), thereby removing the scums or gases formed by Pb, Fe, S, and O in the metal liquid; (d) performing heat-preserving directional solidification on the metal liquid, to bias-aggregate the Fe and Sb at one end and remove the same to obtain a copper-based intermediate alloy; and smelting and powdering the copper-based intermediate alloy.

Abstract: The present disclosure relates to the field of brazing material technologies, and particularly to a copper-phosphorus brazing wire for brazing a copper alloy spectacle frame as well as a preparing method and system thereof. The copper-phosphorus brazing wire for brazing a copper alloy spectacle frame includes components with following mass percentage, 87.1%˜91.4% of Cu, 1.5%˜2.6% of Ag, 5.9%˜8.4% of P, 0.2%˜0.42% of Al and 0.8%˜1.68% of Si. For the copper-phosphorus brazing wire according to the present disclosure, through coordination and cooperation of the components, impurity content is low and joint strength is high in a welding process; a mass ratio of the Si to the Al is a constant value, and a dense oxide film may be formed on a surface of a molten pool to hinder volatilization of Zn in a base material.

Abstract: The present invention relates to nanoparticles complexed with therapeutic agents configured for treating cardiovascular related disorders, and methods of synthesizing the same. In particular, the present invention is directed to compositions comprising synthetic HDL (sHDL) nanoparticles carrying therapeutic agents configured for treating cardiovascular related disorders, methods for synthesizing such sHDL nanoparticles, as well as systems and methods utilizing such sHDL nanoparticles (e.g., in diagnostic and/or therapeutic settings (e.g., for the delivery of therapeutic agents, imaging agents, and/or targeting agents (e.g., in cardiovascular disease diagnosis and/or therapy, etc.))).

Abstract: An acoustic field diffusion type electromagnetic acoustic transducer with improved periodic permanent magnets is provided, which includes periodic permanent magnets, a transducer framework, improved racetrack shaped coils and a transducer connector.

Abstract: The present invention relates to nanoparticles complexed with therapeutic agents configured for treating cardiovascular related disorders, and methods of synthesizing the same. In particular, the present invention is directed to compositions comprising synthetic HDL (sHDL) nanoparticles carrying therapeutic agents configured for treating cardiovascular related disorders, methods for synthesizing such sHDL nanoparticles, as well as systems and methods utilizing such sHDL nanoparticles (e.g., in diagnostic and/or therapeutic settings (e.g., for the delivery of therapeutic agents, imaging agents, and/or targeting agents (e.g., in cardiovascular disease diagnosis and/or therapy, etc.))).

Abstract: The present invention relates to nanoparticles complexed with therapeutic agents configured for treating cardiovascular related disorders, and methods of synthesizing the same. In particular, the present invention is directed to compositions comprising synthetic HDL (sHDL) nanoparticles carrying therapeutic agents configured for treating cardiovascular related disorders, methods for synthesizing such sHDL nanoparticles, as well as systems and methods utilizing such sHDL nanoparticles (e.g., in diagnostic and/or therapeutic settings (e.g., for the delivery of therapeutic agents, imaging agents, and/or targeting agents (e.g., in cardiovascular disease diagnosis and/or therapy, etc.))).