The IMF reckons that Japan would need to tighten its structural deficit by 13.4% of GDP between now and 2020 in order to bring its debt-to-GDP ratio down to 80% by 2030.
The subsequent experiments on a piezoelectric beam show that the structural modal damping ratio can be promoted significantly.
压电悬臂梁的实验表明，它们能使结构模态阻尼比大幅提高。
3
The objective digital film image quality assessment based on peak signal to noise ratio, together with structural similarity and human vision system is proposed.