采用不同极性溶剂环己烷、乙酸乙酯、正丁醇连续提取及XAD-4树脂提取大豆根茬木霉腐解产物,并对各提取组分进行了化感作用研究,对......

The two proposed filters described here satisfy the Federal Communications Commission Ultra-wideband (FCC-UWB) specifica......

In this paper, two ultra-wide band power dividers are introduced. Compact equal power divider is considered firstly wher......

This article presents a compact wideband microstrip-fed planar monopole antenna composed of a rectangular patch and slot......