种特征
- 与 种特征 相关的网络例句 [注:此内容来源于网络,仅供参考]
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According to the difference of the genetic mechanism, it is further divided into the slump turbidite fan and the deep-water turbidite fan for they have some differentces in seismic profile, depositional character and space distribution.
根据其成因机制上的差异,又可进一步分为滑塌浊积扇和深水浊积扇等两种沉积类型,二者在地震反射特征、沉积特征及空间展布上均有一定的差别。
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The chief obstacles to feature selection are noise and sparseness.
本文介绍了一种基于类别特征域的特征选择方法。
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50Cm×50cm quadrats and 30 repeats were located in the middle ten days of July, 2006. The population character and community character were investigated about the two Potentilla.
于2006年7月中旬在样地内随机设置50cm×50cm样方,30个重复,调查两种委陵菜种群特征及其所分布的群落的特征。
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In the meanwhile, the TS characteristics of a scattering particle and their relationship are studied when it is passing through the scattering area, In addition to this, the distribution function of particles' shape is defenited in terms of math's method and a new method is putout of which the distribution of particles' shape is captured in according to the power spectrum and spectral distribution characterist of light scattering and finally, the utility of the perturbation ameliorating method and the effect of the particles' shape is modified, so far, the accuracy of measurement of the particles' size is improved effectively.
对此,本文在以Mie散射理论为原理,依据前向接收器接收的前向散射光信息以获取微粒大小信息的测量基础上,对微粒穿越光敏区时的时域与空域的特征以及相关性开展了研究,从数学上定义了微粒的形体分布函数,提出了一种依据光散射功率潜和频谱分布特征来获取微粒形体分布信息的方法,完善了微扰修正理论的应用性,有效地改善了形体的影响问题,从而可提高微粒粒度分布测量结果的准确性。
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We research MBTI and motivation as leaders\' personality, relationship- oriented and task- oriented behavior as leaders\' behavior character, which are the cause of teams effect. After referring to most scholars\' theories, we sort team by the depending on each other and the complexity of teams\' task: eopard team, oryx team, zebra team, and wolf team, which are the situational variables.
经过对比分析不同的人格和行为因素,本文特别选取了荣格心理类型、麦克利兰动机、关系导向与任务导向作为领导者特征对团队有效性影响的因变量;在综合国内外学者对团队类型划分方式的基础上,我们根据团队成员依存性、任务结构化两个核心维度,对团队进行了新的分类,分为猎豹型、羚羊型、斑马型和狼群型四种团队,并将其作为领导者特征对团队有效性影响的中介变量。
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In the space, along with increased distance from the main ore-controlling structures, the frequency of P type of pyrite and their thermoelectricity also decreased gradually. Within one lode, from the upper to the lower parts of an ore body, the vertical change of pyrite in thermoelectricity as the follows:① when the ore body is stable, that is when the ore body is uniformly and continuously mineralized, the Dp andαvalues keep increased from shallow to deeper parts;② when an ore body is discontinuously mineralized, the Dp andαvalues have a wavy increasing tendency from the shallow to the deeper;③ when the deeper part of an ore body contains abundant, Co and Ni high mafic dykes, the Dp andαvalues of pyrite decreased from the shallow to the deeper parts of an ore body, that is, an reversed zoning of pyrite thermoelectricity occurs for pyrite in this situation contain more Ni and Co and belongs to N type.④ For the deposits hosted in the Archean metamorphic rocks, because all of the pyrite in this case is N-type, the vertical change of pyrite is not featured by the transition of pyrite type, but by the increased values of Vnp and α from the shallow to deeper parts of an ore body.
在空间域上,水平分带规律为:随远离主干断裂,矿脉中P型的出现频率逐渐降低或热电系数值逐渐变小;在同一条矿脉中,这是由于矿化不均匀性及脉岩的影响,由矿体的上部到下部,它的垂向变化特征可以有如下几种变化形式:①由矿体的浅部到深部,黄铁矿的Dp值、或α值呈稳定升高的趋势时,矿体往往表现为矿化均匀,连续性好、延伸稳定;②由浅部到深部,黄铁矿的Dp值、α值呈波状变化,但总体又具有增大的趋势时,所在的矿体连续性差;③当矿脉的下部发育有大量的基性脉岩时,由于基性脉岩中常含有较高的Co、Ni,使其中黄铁矿的Co、Ni含量较高而呈N型导电,由矿体的上部到下部,黄铁矿的Dp值、α值呈减少的趋势,而造成黄铁矿热电性特征的逆向分带,④产于太古代变质岩中的中深脉状金矿,由于其中的黄铁矿均为N型导电,所以垂向变化规律并不表现为导型的改变,只是Vnp值或α值从矿体的上部到下部由小变大。
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Too much emphasis has been laid on thephase coherence detection using the arithmetics of auto-correlation in time domain,spectrum analysis in frequency domain and feature extraction of intra-pulse modulatedsignals employing the methods of quadrature in time domain、Short Time FourierTransform、Wigner-Ville Distribution and Radon-Wigner Transform.
本文详细介绍了脉冲多普勒雷达的原理及其信号特征、相参性原理、脉内调制信号、时频分析理论和模式识别理论等,重点讨论了利用时域自相关法和频域谱线分析法进行相位相参性的检测;详细分析了脉内调制特征提取的几种方法,主要包括时域正交、短时傅立叶变换、维格纳分布和 Radon-Wigner 变换。
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Compatible with the "three-high" character of high-tech industry, a kind of new financing mechanism, venture capital, arisen.
由于高科技产业具有高投入、高风险、高收益的特征,促成了满足其特征需要的一种新的投融资机制——风险投资的应运而生。
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In studies of interaction among pile, platform that above it and surrounding soil, this paper employ the concept of plate element to simulate the loading character of platform, and employ the concept of solid element to simulate the character of pile and soil, using the finite element method after understanding the geometry properties of pile, soil and the platform. Analyzing the loading properties of the three entities above and their deformation, this paper also employ a special element, Penalty Element. The introduction of penalty element of this kind has served to guarantee the join harmony of displacement between solid element and plate element, thereby effectively resolving the join problem between platforms, pile that support it and surrounding soil.Considering significant property difference between pile material and its surrounding soil, there may be much shear stress on their contact interface produced under vertical load, thus causing displacement or fission. Therefore it is necessary to adopt one special constitutive law of this kind of contact interface, which can reflect its feature of loading and deformation thoroughly. On the basis of the deformation feature and constitutive laws of some contact interface obtained by Zhang Dongji and people concerned through some single-shear experiments on contact interface between structure and soil, this paper employ one pile-soil three-dimensional constant thickness contact interface model to simulate the " slide" taken place on the interface between pile and its surrounding soil. With this kind model, this paper has also created one finite element model, which can be applied to perform finite element calculation and analyze the pile-loading feature, and deduced its element stiffness matrix.
在承台-桩-土共同作用中,考虑桩与承台的几何特性,采用有限元方法,用实体单元模拟桩土,用板单元模拟承台,更具体地分析桩和承台的受力特性和变形,而且还采用罚单元—既实体单元与板单元之间连接必须满足变形协调条件,来有效地解决了承台与桩土的连接问题,且在桩土共同作用中,由于桩体结构的材料性能与周围土层性质相差较大,在竖向荷载下有可能在其接触面上产生较大的剪应力从而导致错动或开裂,因此,为了充分反映桩土接触面上的受力及变形特征,应采用一种桩土接触面特有的本构关系,即利用张冬霁等人关于结构与土体接触面单剪试验所得到的接触面变形特征及其本构关系,引入桩-土三维等厚度接触单元来模拟桩与桩侧土之间的&滑移&,在此基础上建立可用于桩基承载性状分析的有限元计算单元模型,并推导出了各单元的刚度矩阵。
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On this condition, some useful features have been found in the space domain. Wavelet spectrum estimation method has been used to extract the features in the space domain because the wire rope signal is a kind of none-stable signal. In order to discuss the physical meaning of this method, this dissertation proposes the relationship between Fourier spectrum and wavelet spectrum.
为进一步进行特征提取的需要,根据钢丝信号属于非平稳信号的事实,对信号给出了小波谱估计,以及Fourier谱和小波谱之间的关系和有效的小波谱计算方法,并在对实际钢丝信号小波尺度谱分析的基础上,给出一种信号的小波谱量化的方法,提取了信号的小波谱特征。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。