Abstract For parts with large deep-diameter ratio shaped hole features, the complex structure of profile and led to poor machining accuracy. The processing requires high efficiency, precision low cost. Therefore, it is difficult use traditional method, electrolysis method based on anodic dissolution mechanism adopted, which has no shear stress accurate forming. 3D model established part, cathod...

Supercapacitors have been one of the highest potential candidates for energy storage because of their significant advantages beyond rechargeable batteries in terms of large power density, short recharging time, and long cycle lifespan. In this work, Cu-Co sulfides with uniform flower-like structure have been successfully obtained via a traditional two-step hydrothermal method. The as-fabricated...

A magnetohydrodynamic (MHD) stirrer that exhibits chaotic advection is investigated experimentally and theoretically. The stirrer consists of a circular cavity with an electrode (C) deposited around its periphery. Two additional electrodes (A) and (B) are deposited eccentrically inside the cavity on the bottom. The cavity is positioned in a uniform magnetic field that is parallel to the cylinde...