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生死过程在涡旋磁场分析中的应用
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作者 卢学源 《中国传媒大学学报(自然科学版)》 1996年第2期56-60,共5页
本文应用生死过程的理论,给出了随机变化的电场如何激发随机涡旋磁场的统计规律,为今后应用生死过程的理论去分析整个“随机电磁场”创造了前提。
关键词 转移概率 转移密度 生殖强度 死亡强度 随机涡旋磁场
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Occurrence of Bothriocephalus acheilognathi (Cestoda, Bothriocephallidea) in grass carp Ctenopharyngodon idella in the Changjiang River drainage 被引量:1
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作者 习丙文 王桂堂 谢骏 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2011年第3期564-567,共4页
Bothriocephalus acheilognathi is a potentially serious pathogen in wild or cultured fish in worldwide distribution. We examined 58-farmed grass carp from Nanchang in the Changjiang (Yangtze) River drainage, from which... Bothriocephalus acheilognathi is a potentially serious pathogen in wild or cultured fish in worldwide distribution. We examined 58-farmed grass carp from Nanchang in the Changjiang (Yangtze) River drainage, from which 20.7% were found to harbor the parasite with an infection intensity of 36.9 ± 54.7. The parasites were identified based on morphology and rDNA ITS sequence analysis. The present report represents the first record of the parasite in grass carp Ctenopharyngodon idella in the river drainage. 展开更多
关键词 Bothriocephalus acheilognathi grass carp Changjiang (Yangtze) River drainage
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