Full
Outline
Uncertainty of particle velocity (u) was systemically analyzed in terms of the general guide to uncertainty evaluation, focusing on two principal types of Hugoniot measurements—flyerplate-impact experiment and relative measurement. The uncertainties of the shock velocity (D), shock pressure (p), compressional density (ρ) and compressional specific volume (v) were also formulated in detail based on the law of propagation of uncertainty. For both asymmetric impact (different kinds of sample and driver) and relative measurement, the uncertainty resulted from the approximation of double-shock Hugoniot or release to the mirror reflection of the principal Hugoniot should be taken into account as Type B evaluation of uncertainty. The situations, such as the obvious difference of the same kind of materials, the temperature rise of the flyer prior to impact and so on, should be avoided in Hugoniot experiments.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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