The increase of transmission frequency reveals more merits than low- or medium-frequency
distribution among different kinds of power applications. High-frequency inverter serves as …

The development of inexpensive and highly efficient nonprecious metal catalysts to substitute
Pt in the alkaline oxygen reduction reaction is an appealing idea in the energy field. Herein…

A general method for the synthesis of metal oxide hollow spheres has been developed by
using carbonaceous polysaccharide microspheres prepared from saccharide solution as …

Nearly monodisperse single-crystalline Cu 2 O nanospheres were prepared by an effective
solution method with NaBH 4 as the reducing agent. Sensors based on them have good …

With over 2 million new cases annually, stroke is associated with the highest disability-adjusted
life-years lost of any disease in China. The burden is expected to increase further as a …

Global atmospheric emissions of 16 polycyclic aromatic hydrocarbons (PAHs) from 69
major sources were estimated for a period from 1960 to 2030. Regression models and a …

Fabricating active materials into specific macrostructures is critical in the pursuit of high
electro-catalytic activity. Herein we demonstrate that a three-dimensional (3D) architecture of …

Increasing demands for power supplies have contributed to the population of high-frequency
ac (HFAC) power distribution system (PDS), and in order to increase the power capacity, …

Exposure to elevated concentrations of surface ozone (O 3 ) causes substantial reductions
in the agricultural yields of many crops. As emissions of O 3 precursors rise in many parts of …

Developing active single-atom-catalyst (SAC) for alkaline hydrogen evolution reaction (HER)
is a promising solution to lower the green hydrogen cost. However, the correlations are not …