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基于无线传感网络的花生温室系统实验与数值模拟研究
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作者 王强 刘志刚 《中国农机化学报》 北大核心 2014年第5期87-89,111,共4页
利用广义回归神经网络原理建立了GRNN数值模型,并对无线传感器进行网络布控,利用PC单片机设计了声控自动化测量电路,实现了花生大棚温度测量的自动化控制。本文采用GAMBIT数值建模软件建立了花生大棚的仿真实验模型,并利用FLUENT软件对... 利用广义回归神经网络原理建立了GRNN数值模型,并对无线传感器进行网络布控,利用PC单片机设计了声控自动化测量电路,实现了花生大棚温度测量的自动化控制。本文采用GAMBIT数值建模软件建立了花生大棚的仿真实验模型,并利用FLUENT软件对花生温室大棚的温度调节过程进行数值仿真模拟,得到了花生大棚温室内的温度分布云图和温度变化曲线,将数值仿真模拟结果和无线传感器测量结果进行对比发现,数值仿真和实验结果基本吻合,从而保证了无线传感器测量的准确性,为花生农业生产现代化研究提供了技术支持。 展开更多
关键词 广义回归 神经网络 GRNN模型 PC单片机 花生温室 GAMBIT FLUENT软件
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Nymphaeaceae Salisb. and Trapaceae Dumort. Families in the Collection of O.V. Fomina Botanical Garden
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作者 Tatyana Mazur Nikolai Didukh Anna Didukh 《Journal of Life Sciences》 2012年第1期114-118,共5页
On basis of aquatic and riverside-aquatic plants collection of O.V. fomina botanical garden is conducted research of ontogenesis, ecology, phenology, carpogenesis, biomorphology, life forms, adaptatations, of this gr... On basis of aquatic and riverside-aquatic plants collection of O.V. fomina botanical garden is conducted research of ontogenesis, ecology, phenology, carpogenesis, biomorphology, life forms, adaptatations, of this group's plants, peculiarities of their cultivation and application in conditions of temperate zone of Ukraine. Special values in research have ancient genera and species, which include representatives ofNymphaeaceae salisb, and trapaceae Dumort. families, 22 species, 6 varieties, 1 hybrid, 30 cultivars of which are presented in collection of garden in open and covered soil. For the first time in covered soil of two conservatories ecological modeling was conducted. Placement of plants is done in form of 5 models of artificial ecotopes, in 155 abatises. Four ecobiomorphological groups based on rhizome system were determined for Nymphaeaceae, among which conditionally-rhizome and conditionally-stolone are provided for the first time. 展开更多
关键词 Aquatic and riverside-aquatic plants ancient genera NYMPHAEACEAE trapaceae models of artificial ecotopes ecobiomorphological groups ontogenesis.
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