Revisiting the Power Law Characteristics of the Plastic Shock Front under Shock Loading.

Under uniaxial shock compression, the steepness of the plastic shock front usually exhibits power law characteristics with the Hugoniot pressure, also known as the "Swegle-Grady law." In this Letter, we show that the Swegle-Grady law can be described better by a third power law rather than the classical fourth power law at the strain rate between 10^{5}-10^{7}  s^{-1}. A simple dislocation-based continuum model is developed, which reproduced the third power law and revealed very good agreement with recent experiments of multiple types of metals quantitatively.

Effect of storage time on biochemical characteristics and antioxidant activity of hawk tea () processed by boiling water fixation.

This study investigated the effect of storage time on biochemical characteristics of hawk tea () and explored the correlation between the content of flavonoids and polyphenols and antioxidant activity. The antioxidant activity and the content of inclusions, amino acid, and mineral elements in hawk tea processed by boiling water fixation and packed in airtight polypropylene bags and stored in 0°C refrigerator under different storage time (one year, three years, and six years) were analyzed. Results indicated that the biochemical characteristics of hawk tea changed less within 12 months.

[Predation of Axinoscymnus cardilobus to Bemisia tabaci].

The laboratory study on the predation of Axinoscymnus cardilobus to Bemisia tabaci showed that the functional response of A. cardilobus to B. tabaci was of Holling' s type II.

[Feeding behavior of Serangium japonicum (Coleoptera: Coccinellidae), a predator of Bemisia tabaci (Homoptera: Aleyrodidae)].

Serangiurm japonicum is an important predator of whiteflies in China. In this study, the Bemisia tabaci-attacking behavior of S. japonicum adults and larvae was observed by a videocassette recorder.