An integrated analysis for spatio-temporal evolution of food water-carbon-energy footprint and its sustainable production in northwest China.

The increasing demand for food production has led to significant resource consumption and environmental stress in ecologically fragile areas. A comprehensive quantification of the environmental impact of crop production can provide essential support for the sustainable development of agriculture in these regions. In this study, we utilized water, carbon, and energy footprint of food production to analyze its water consumption, greenhouse gas emissions and energy use.

Transparent and ultra-wideband metamaterial absorber using coupled hexagonal combined elements.

Optically transparent microwave absorbers have been widely reported for electromagnetic stealth applications over the past few years, but developing ultra-wideband absorbers with high angular stability remains challenging. In this work, an absorber comprising a double-layer polymethylpentene (TPX) block and indium tin oxide (ITO) films has been designed, fabricated, and measured, respectively. Firstly, an impedance layer with novel coupled hexagonal combined elements is exploited to achieve ultra-wideband absorption.