基本曲线
- 与 基本曲线 相关的网络例句 [注:此内容来源于网络,仅供参考]
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With the same idea for thin film test, a method was proposed to determine the yield strength and hardening index of small volume of material by indentation loading curve using spherical indenter.
通过对小体积材料球压入过程的数值研究,获得了小体积材料基本力学性能与球压入响应间的函数关系,并据此提出用球形压头的纳米压入加载曲线确定小体积材料屈服强度与硬化指数的新方法。
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Four main types of spatial binary links are investigated in details for kinematic synthesis both in precision-position synthesis and multi-position synthesis. In terms of the invariants of spherical curve and cylindrical curve, the mathematical models of adaptive fitting sphere and cylinder are constructed by means of the saddle-point programming.
再次,根据常见空间机构运动副组合的约束曲线与约束曲面的曲率理论,阐述了空间机构运动综合的基本要素及其不变量拟合理论与方法,研究了有限位置和多位置情况下,自适应综合方法在空间S-S、C-S、C-C和S-C四类二副杆组运动综合中的应用,实现了自适应综合方法从平面到空间的扩展。
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The mechanism of the reaction was studiedin detail,in which excited state avaliable to carryout the excited state intramolecular proton transferreaction was recognized.The INDO/S-CI semiempiricalMO method was used to calculate transition energiesand oscillator strength,and assign spectra theore-tically,the calculated spectra values were basicallyconsistent with the experimental values.Themolecular orbital properties for the adjacent HOMO-LUMO of various kinds of conformersand anion species,thetransition properties and symmetry for thetransition from ground state to lower excited stateswere analysed,especially,no much study on theanion species all of the world.
位能曲线的求法满足反应坐标是反应过程中能量最小途径的定义,较详细地研究了各类反应的质子转移历程,认定在哪个激发态有利于发生激发态分子内质子转移反应,用INDO/S-CI半经验MO方法进行跃迁能和振子强度计算及光谱的理论指认,计算的光谱值和实验值基本吻合,并分析了各种异构体和阴离子的HOMO-LUMO附近的轨道性质,各跃迁态的跃迁性质和对称性,尤其是对阴离子的研究国内外尚不多见。
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In this paper,according to optical basic theory, an analytical solution for nonlinearity of the scanning with tetrahedral column rotation mirror is obtained, and a numerical calculation is made to gain a analysis.
从光学基本原理出发,得到了四面柱体转镜扫描的非线性解析解,并进行了数值计算,从而给出了四面柱体转镜扫描的非线性曲线。
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Introduced the basic principles, implementation, and the theoretical curve fitting method, and gives the implementation process and the preparation of some of the software interface.
介绍了基本原理,执行办法,以及曲线拟合的理论方法,并给出了实现的程序和编制软件的部分界面。
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The software of Mathematica is applied to numerically calculate the force and draw the υ-h curve, and the theoretical curve in accordance with that obtained in the experiment.
并应用Mathematics软件对受力表达式求数值解,画出υ-h图,与实测的υ-h曲线对比基本吻合。
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The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.
研究结果如下:首先针对荒漠化地区的地物特征,对高光谱数据不同波段的数据质量、波段组合进行了评价,提出了适用于荒漠化监测的基本波段选择集;初步了解和掌握了研究地区的地物光谱特性及变异规律,进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础;发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的"同物异谱"现象,对于谱形相似而整体反射率的值相差较大的两类地物,通过引入均值和方差图像参与分类得到解决;研究还表明在植被"红边"范围内的波段是进行荒漠化监测的主要特征波段,这些波段与植被生物量和盖度都有密切的关系,是开展精细植被分类研究和植被定量反演的重要基础;像元的导数光谱分析可以消除土壤背景的影响,是进行植被生物量和盖度定量反演的有力工具;建立了荒漠化监测主要评价因子的定量反演模型,并分析了模型的适用性。
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There is acidification on the rhizosphere of Triploid populus tomentosa in certain degree.
两模式根际pH值的月动态变化曲线基本一致,都呈双峰型变化,峰值都出现在2月,低谷均出现在6月和9月。
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Taking Changling County, Zhenlai County and Da'an City of Jilin Province as researchareas, based on remote sensing data, graphics operation and spatial analysis are carried out indifferent points of views, including temporal, spatial, scale and landscapeetc; all aspects analysis of this dissertation are abstractively expressed by digital graphics andseries of curves which are not stick to one pattern to discussing multi-dimension andcomplicated attributes of the salinized process. Linking up temporal-spatial characteristicswith landscape indices while combining mathematics model and Geo-informatic TUPUmodel, this dissertation puts forward the fundamental frame: temporal-spatial evolvementpattern, spatial extension process analysis and landscape characteristics analysis of salinizedland. Temporal-spatial evolvement pattern analysis extracts the essential quantity features andtransformation modes of salinized land, and also analyzes patches spatial geometricalparameters scale feature; spatial extending process analysis discusses the change rate andecological modes; landscape feature analysis utilizes landscape graphics indices to describesalinized land microcosmic graphics features and changes.
信息图谱模型为土地盐碱化研究提供了一种谱系化、定量化与定位化相结合的研究方法,本文选取吉林省西部盐碱化典型区域长岭县、镇赉县、大安市作为研究区,以遥感影像为基础数据,在GIS技术支持下,从时空变化、尺度效应、景观特征等多个角度对盐碱化土地进行图形运算、空间分析,通过不拘一格的数字化图形、曲线系列抽象表达出不同维度上的特征与规律,探讨土地盐碱化过程的多维性与复杂性,将盐碱化土地时空特征与景观特征衔接、数学模型与图谱模型结合,以盐碱化土地时空演变基本模式、空间扩展过程和景观特征分析为框架构建盐碱化土地信息图谱模型研究体系,发挥图谱模型数据挖掘、知识发现的特长,将宏观动态变化与微观特征相联系,进一步挖掘土地盐碱化过程与人类活动影响的关系,为探索研究区盐碱化土地成因、过程,预测其未来发展变化趋势及其对环境影响提供相关科学依据。
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Of discharge capacity at the first cycle after 20 cycles. At the same condition, the uncoated MCMBs just keep 74. 6% of the first discharge capacity. Cu coating have the same effect as the Ag coating about sensitive to humidity, but the coated Cu is easily oxided on air. Cu-Ag alloy is provided with normal temperature antioxygenic property in air.
从动力学角度出发,提出电极放电行为的理论模型,根据材料的基本性能来计算锂嵌入和脱出的反应过程,根据该模型对材料的放电曲线、锂在材料中的扩散系数和交换电流密度进行模拟和计算,并且得到了和实验结果的一致性。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。