Full
Outline
The designing principles are discussed based on the analyses of discharging circuit of electric gun. According to those, an electric gun with the energy of 14.4 kJ is designed and established. The measuring results show that the parameters of the electric gun, for example, the inductance is less than 40 nH, the discharging period is 7 μs, the flatness of the flyer is less than 40 ns, and the rising ratio of the initial current is to 750 GA/s. Compared with the same type of devices at home and abroad, the electric gun is high level and with good performances. Based on the above discussions and analyses, the common requirements are presented for electric gun in order to attain the one dimensionally planar strain.
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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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