和指数
- 与 和指数 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It was found that E and μm increased greatly but DI andor decreased when the dose of neuraminidase and the time of treatment were increased. There was a contrary correlation between them.
发现随着神经氨酸酶处理剂量的增加和处理时间的延长红细胞膜剪切弹性模量和表面粘度明显增大,而红细胞的变形指数DI和取向指数or却减小,呈现明显的反相关关系。
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A reasonable warmer winter indexin the framework of the three equiprobability categories(i.e.warmer,normal and colder categories)is proposed based on the winter temperature data observed at 565 stations in China during 1956-2005,where the IWWI is defined as the ratio of the station number of warmer category over the total number of stations.
利用全国565个台站1956-2005年冬季平均温度资料,将多年温度变化划分为偏暖、偏冷和正常三类等概率气候事件,由此给出了一个新的暖冬指数和暖冬的定义。结果表明:暖冬指数与中国冬季温度的变暖趋势相一致,并表现出显著的年代际变化特征,其变率分别为10%/10a和0.4℃/10a。近50a暖冬事件共计发生13次,其中近85%的暖冬发生在1986年以后。
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The existence and uniqueness of the solution with the help of the Banach fixed point theorem and the theory of operator semigroups are verified .The global exponential stability of KS equation and the global exponential stability and asymptotical stability of macro KS equation with the given boundary feedbacks are proved .
通过Banach不动点原理和算子半群理论证明了方程解的存在性和唯一性,并证明了KS方程在给定的边界反馈条件下是全局指数稳定的及广义的KS方程在给定的边界反馈条件下是全局指数稳定和渐近稳定的。
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The riv- er′s health status can be determined through a holistic appraisal of rivers and their surrounds.Five components of the rivers health include: water quality, aquatic life, physical form, hydrology and streamside zone.Many methods and criteria are available to assess the status of river ecosystem, and this review focuses on RIVPACS,AUSRIVAS,IBI,RCE,ISC,RHS and RHP, which are classified into the pred...
阐述了河流健康状况的内涵,尝试从理化参数、生物指标、形态结构、水文特征、河岸带状况5个方面表征河流的健康状况;并从预测模型法和多指标评价法角度对河流无脊椎动物预测和分类系统、澳大利亚河流评价计划、生物完整性指数、RCE清单、溪流状态指数、河流生态环境调查、河流健康计划等河流健康状况的评价方法进行评述;在探讨美国、英国、澳大利亚、南非等国家河流健康状况评价开展情况的基础上,指出我国迫切需要构建一套适合国情的河流健康状况评价体系,从河流健康角度评价国内主要河流的生态环境质量,并为广泛开展的河流恢复项目提供基础数据和决策依据。
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Firstly, by means of wavelet de-noising the pseudo data and noises in both load and meteorological data are eliminated; then by use of gray correlation theory the incidence relation among power load and meteorological indices is analyzed; and then the meteorological indices and load which possess best relevance one another are chosen to perform sensitivity analysis, and using support vector machine algorithm the daily peak load is forecasted.
首先通过小波去噪消除负荷和气象数据中的伪数据和噪声,然后采用灰色关联理论分析了负荷与各气象指数之间的关联关系,选择其中关联性最好的气象指数和负荷进行敏感度分析,并采用支持向量机算法对电力日峰荷进行预测。
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The aim of this study is to quantitatively investigate the effects of both temperature and photosynthetically active radiation on the leaf growth of greenhouse cucumber.
该模型对黄瓜叶面积指数的模拟结果与1∶1直线之间的决定系数R2和回归估计标准误差RMSE分别为0.8792和0.3980,比用积温法和比叶面积法模拟叶面积指数的精度分别提高了37%和74%。
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The study indicates that the content of soil carbon is on the low side because human behavior has a negative effect on sloping cropland. However, the content of every group soil carbon increased drastically by planting Robinia . With the increasing of the time of conservation, the relationship is very remarkable. After 50 years of restoration, the content of TOC, LOC, NLOC and AI in the study plot increased by 271%,174%, 467%, and 271%, respectively, compared with sloping cropland. The increasing speed of NLOC was faster than LOC. It is assumed that the increased carbon by restoration is stored in an inactive form to produce active matter which is necessary for biont. And the soil carbon must keep active to fulfill the balance of carbon dynamic transformation. At initial stages, soil carbon management index increased remarkably.
营造刺槐林可以显著增加土壤碳库各组分含量,并随恢复年限呈显著线性关系,50a时TOC、LOC、NLOC和碳库指数分别较坡耕地增加271%、174%、467%和271%,其中NLOC增加速率略高于LOC,表明植被恢复增加的土壤碳素绝大多数以非活性形态贮存起来,而为了满足生物生长所必须的活性物质来源,土壤碳库必须维持一定的活度状态来满足碳素的动态转化平衡,碳库管理指数在营造刺槐林初期显著降低,随后先增加后降低,与刺槐林生长特性密切相关;但与天然林相比差距仍然较大,恢复50a时TOC、LOC和NLOC仅为侧柏林的49%、34%和61%。
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Winter,because of cold and food resource was shortage,animal to get more nutrition material andenergy,to adopt the changes of environment condition,to prolong alimentary canal andincrease food in alimentary canal detention time,to be able to absorb the nutrition materialdigestion countermeasure in food fully.As availability and nutrition were rich such as insummer and fall,however,shortening the length of alimentary canal,make food inalimentary canal current velocity accelerate,since make animal absorb in the season withabundant food the more nutrition material energy that is plenty of with accumulation.9adopt relative fatness,body chemical composition,kidney fatty index and marrow fattyindex 4 kinds of population nutrition condition assessment technique appraise as squirrelnutrition condition of population.
冬季,由于寒冷和食物资源匮缺,动物为了获取更多的营养物质和能量,采用延长消化道、增加食物在消化道内滞留时间,从而能充分吸收食物中的营养物质的消化对策,来适应外境环境条件的变化;在食物可利用性大、食物中营养物质较丰富的季节,则缩短消化道长度,使食物在消化道内的流速加快,从使动物在食物充裕的季节能摄取更多的营养物质和积累大量的能量。9采用肥满度、身体组成成分分析、肾脂肪指数和骨髓脂肪指数四种种群营养状况评价方法对松鼠种群的营养状况进行了评价。
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After explaining correlation theory and its important features, the rescaled range analysis、modified rescaled range analysis and detrended fluctuation analysis are analysed. As for the drawbacks produced by the rescaled range analysis when faced with short term correlation, a modified rescaled range analysis based on short term correlation model is applied to Shanghai stock market and Shenzhen stock market. The result is explained and compared.
在阐述了分形时间序列的相关理论和重要特征后,对经典重标极差分析法、修正重标极差分析法和趋势消解波动分析法等一维分形分析方法进行了系统分析,针对重标极差分析法对短期相关会产生有偏结果的缺点,给出了一种基于短期相关的改进的重标极差分析法,把各种一维分形分析方法应用于上证综合指数和深圳成分指数序列进行实证分析,并对结果进行了比较和解释。
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Based on the return map and the principle of closed vectors, a new method is proposed to extract unstable periodic orbits embedded in chaotic attractors. As examples, the UPOs embedded in chaotic attractors of Logistic, Hénon and Lorenz are extracted respectively by this method. And our results of Skewed Hénon map also be compared with Nusse's. These results suggest that this method is valid for unstable periodic orbits from period one to period infinite of arbitrary dimension chaotic system. The dynamic considerations of spiking and UPO coding for individual neuron and neural system under external periodic and chaotic exciting stimulus also be studied in this dissertation. A lot of spiking phenomena, such as synchronization, period, and chaos appear alternatively with the changing of the stimulus frequency. For the small stimulus frequency the neuron could completely convey the periodic signal in synchronous anti-phase into interspike intervals sequences. For the slow time–scale chaotic input, the output two ISI sequences are reciprocally related to input signals, and their oscillation wave shape in time course can be derived from that of the input signals variation, furthermore, the similar input sequence and order of UPOs, distribution of LES and value of KYD remain in attractors reconstructed from ISI sequences.
发现周期信号在单个神经元传递过程中,随着激励频率的改变,神经元输出的峰峰间期interspike interval时间序列呈现出周期、混沌和准周期的交错变化,特别当外加激励信号频率较低时,周期信号可以通过神经元ISI序列以反相同步的周期运动形式传递下去;同时无论是周期还是混沌激励信号,在神经系统中的传递均与其自身强度和神经元之间的耦合强度的大小密切相关;快变时间尺度的混沌激励信号在耦合的神经系统传递过程中,会造成大量基本信息的丢失;而慢变时间尺度的混沌激励信号在神经系统传递中,它的非线性特征信息,如混沌吸引子、不稳定周期轨道、Lyapunov指数谱和分形维数,会通过系统输出的ISI序列部分地重现出来,如与输入慢变时间尺度的混沌激励信号相比,神经系统输出的ISI序列具有:相似几何形状的混沌吸引子、相近的Lyapunov指数谱和分形维数、局部结构相同的不稳定周期轨道的排列方式。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。