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浅谈闽东地区生物防火林带建设
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作者 张建平 姚剑民 兰大和 《森林防火》 2000年第3期35-36,
闽东位于福建省东部,辖区内9个县市120个乡镇2146个行政村,在1995年全面完成“三五七”工程造林,荒山基本绿化,全区有林地面积从原来512 022.9万hm2增加到848 194.8万hm2;森林覆盖率65.2%... 闽东位于福建省东部,辖区内9个县市120个乡镇2146个行政村,在1995年全面完成“三五七”工程造林,荒山基本绿化,全区有林地面积从原来512 022.9万hm2增加到848 194.8万hm2;森林覆盖率65.2%,绿化率 86.7%;森林火险Ⅱ级县(市)6个,Ⅲ级县(市)3个。 纵观闽东森林防火局势,在各级党政领导的高度重视下,始终坚持“预防为主,积极消灭”的森林防火方针,通过有关部门密切配合和全体护林人员的艰苦工作,“九五”期间每年发生的森林火灾与“八五”期间相比,平均下降了17%,受害面积下降了20%,但年发生率、受害率仍居全省较高位。综合诸多森林火灾因素。 展开更多
关键词 生物防火林带 闽东地区 森林防火 森林火灾损失 林火阻隔网络 福建省 生物工程控制系统 林业主管部门 建设资金 阻隔系统
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A Miniaturized System for Neural Signal Acquiring and Processing 被引量:1
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作者 WANG Min GAO Guang-hong +4 位作者 XIANG Dong-sheng CAO Mao-yong JIA Ai-bin DING Lei KONG Hui-min 《Chinese Journal of Biomedical Engineering(English Edition)》 2008年第3期114-119,共6页
To collect neural activity data from awake, behaving freely animals, we develop miniaturized implantable recording system by the modem chip:Programmable System on Chip (PSoC) and through chronic electrodes in the c... To collect neural activity data from awake, behaving freely animals, we develop miniaturized implantable recording system by the modem chip:Programmable System on Chip (PSoC) and through chronic electrodes in the cortex. With PSoC family member CY8C29466,the system completed operational and instrument amplifiers, filters, timers, AD convertors, and serial communication, etc. The signal processing was dealt with virtual instrument technology. All of these factors can significantly affect the price and development cycle of the project. The result showed that the system was able to record and analyze neural extrocellular discharge generated by neurons continuously for a week or more. This is very useful for the interdisciplinary research of neuroscience and information engineering technique. The circuits and architecture of the devices can be adapted for neurobiology and research with other small animals. 展开更多
关键词 Programmable System on Chip implanting electrodes neural signal virtual instrument wavelet transform
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