>>> 哲学 经济学 法学 教育学 文学 历史学 理学 工学 农学 医学 军事学 管理学 旅游学 文化学
搜索结果: 1-14 共查到IPM相关记录14条 . 查询时间(0.386 秒)
Side-channel analysis and fault injection attacks are two typical threats to cryptographic implementations, especially in modern embedded devices. Thus there is an insistent demand for dual side-chann...
FSEN is an international conference that aims to bring together researchers, engineers, developers, and practitioners from the academia and the industry to present and discuss their research work in t...
基于综合害虫管理策略(IPM),研究了一类具有阶段结构和脉冲效应的捕食者-食饵系统的动力学性质. 根据 Floquet乘子理论和小振幅扰动理论,证明了当脉冲周期小于某个临界值时,系统存在一个全局渐近稳定的害虫根除周期解;给出了系统持续生存的充分条件.
A model was developed to evaluate long-term temporal changes in disease severity (DS) of the clubroot disease of Chinese cabbage in the field with various management strategies. The model consists of ...
We propose a coded polarization-multiplexed iterative polar modulation (PM-IPM) as an enabling coded-modulation scheme for beyond 400Gb/s serial optical transmission. We demonstrate that the proposed ...
With funding from an USDA-ES Competitive Grant, an interactive computer training (ICT) program was developed for training and testing pesticide applicators. Questions are presented throughout the prog...
A western region workgroup was formed to conduct a needs assessment for IPM and pesticide safety education in Multi-Family/Community Dwellings; the focus was on nuisance, health and structural pests. ...
IPM作为开关器件不可避免地存在关断时间,对于电法勘探而言,感抗负载有时比较大,而感抗的大小往往会影响到逆变器的关断时间,倘若不考虑关断时间影响就会导致供电回路短路,严重时会烧毁器件.所以,某些变频领域下所提倡的采用高速光耦来达到较高开关频率的做法在物探领域并不恰当.本文在分析了几种常用的外围驱动电路基础上,结合电法勘探的特殊性,提出了一种IPM外围驱动电路设计的方法,并给出了相关参数的取值以及器...
This paper presents recent results regarding driving factors and extent of adoption of integrated pest management (IPM) techniques by wheat growers in Varamin county. By proportional random sampling, ...
The adoption of Integrated Pest Management (IPM) among farmers in Central Agro-ecological Zone of Delta State, Nigeria was assessed. Three hundred and twenty farmers were selected and interviewe...
麦蚜灾变预警及IPM技术研究与推广     麦蚜  小麦       2008/10/20
该项目澄清了黄淮麦区小麦蚜虫和天敌种类及其发生规律,尤其是蚜虫优势种群麦长管蚜、粟缢管蚜的越冬和迁飞规律;首创了小麦蚜虫黄板诱集预警方法,并建立了测报数学模型,大大减轻了预警工作量和难度,提高了测报准确率;建立了鲁南地区麦蚜及其天敌田间种群动态模型,提出了化防时天敌指标,为降低农药使用量提供了依据;筛选出了防治蚜虫的合理药剂,经过综合研究提出了以生态调控技术为核心的一套麦蚜综合治理(IPM)技术规...
间种牧草枣园害虫与天敌群落优势种的演替与IPM决策.
The Institute for Studies in Theoretical Physics and Mathematics (IPM) was founded in 1989 under the auspices of the Ministry of Science, Research and Technology (formerly the Ministry of Science and ...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...