Comprehensive effects of different mulching materials on winter wheat productions in Weibei highland;
渭北旱塬不同覆盖对冬小麦生产综合效应研究
Con-sidering miss probability,collaborative coverage is presented using probabilistic sensing model.
在节点随机分布的无线传感器网络目标覆盖中,考虑到单个节点有时难以完成对目标的感知,利用节点的概率感知模型和漏检率的概念,提出了节点协同覆盖的思想,并建立了协同覆盖模型;详细分析并推导了协同覆盖感知概率、节点数目和节点参与协同覆盖的最低感知概率之间的关系;在协同覆盖模型的基础上,考虑节点能量消耗的因素,设计了优化网络使用寿命的协同覆盖算法ECTC;仿真结果表明,该算法在改善网络感知概率的同时,延长了网络的使用寿命。
This paper introduces the fractal-based model of the covering formation of transportation network, analyzes and calculates the indices of covering formation which are important criteria for evaluating transportation network, and then applies the model in the evaluation of the transportation network of Ningbo.
引入了基于分形理论的网络覆盖形态模型,分析、计算了交通运输网络规划评价中的网络覆盖形态指标,并将该模型应用于宁波市交通运输网络的评价。
A Bayes reliability estimation approach based on state coverage is put award.
提出一种基于系统状态验证覆盖的Bayes软件可靠性评估方法,该方法以Bayes可靠性模型为评估准则,通过状态覆盖率来保证充分性,通过状态测试验证来保证可靠性,提倡可信性与可靠性并行增长。
Nitrogen Mineralization Characteristics from the Soils under Different Mulching Methods on Dryland;
旱地不同覆盖方式下土壤氮素矿化特性研究
Study on Soil Ecological Effect with Different Mulching Measures in Tea Garden;
茶园不同覆盖措施的土壤生态效应研究
Studies on Saving Water Mechanism of Different Mulch and Plant Patterns of Winter Wheat;
冬小麦不同覆盖物与种植方式的节水效应研究
The Study on Effect of Saving-water Irrigation of Soil Coverage of Wine-making Grape;
酿酒葡萄(Vitis Vinifera L.)不同覆盖节水栽培研究
The Effects of Different Mulching on Physiological Ecology Effect of Winter Wheat and Maize;
不同覆盖处理对小麦、玉米生理生态效应的研究
The Effect of the Different Covering Methods on the Flue-cured Tobacco Quantity and Quality
不同覆盖方式对烤烟产量和质量的影响
Study on Water-saving and Efficient Irrigation Schedule for Summer Maize under Different Mulching Conditions
不同覆盖条件下夏玉米节水高效灌溉制度研究
Influence of Different Cover Materials on NH_3 Volatilization from Chicken Manure Composting
不同覆盖措施对鸡粪堆肥氨挥发的影响
Evapotranspiration and water use efficiency of potted pakchoi under different surface coverage degrees
不同覆盖度下盆栽小白菜蒸散与水分利用效率
Different Covering Materials on The Early Spring Wine Grape Root Temperature
早春不同覆盖材料对酿酒葡萄根系温度的影响
Effects of Coverage Methods on Germination in Pepper in Summer-autumn Season
不同覆盖方法对延秋辣椒育苗出苗影响试验
Analysis of Spectrum Features of Different Surface Cover in Tengchong County of Yunnan Province
云南省腾冲县不同覆盖物的光谱特征分析
The control plan shall cover three distinct phases as appropriate.
控制计划应适当覆盖三个不同的阶段.
ANALYSIS OF LUCC PATTERN ON PHYSICAL REGION IN NSTEC;
NSTEC不同自然带土地利用/覆盖格局分析
a group of journalists representing different publications who all cover the same topics.
代表覆盖同一主题的不同出版物的一群记者。
Accuracy Analysis of Land Use and Land Cover Classification Based on Different Classification Methods;
基于不同分类方法土地利用/覆盖分类精度分析
Effect of Soil Surface Mulching on Carbon Fractions on Dryland;
不同地表覆盖对旱地土壤碳组分的影响
Impact of different straw coverage on non-tillage cultivation of potato;
不同稻草覆盖量对稻田免耕栽培马铃薯的影响