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In the present paper, current research results on the crystallization behavior of cristobalite in silica with different morphologies and different silica matrix composites and different opinions on the mechanism of the crystallization behavior were reviewed. The mechanism of the crystallization behavior was recognized by the surface crystallization in the paper.
本文综述了不同研究人员对不同形态石英与石英基复合材料析晶行为及其差异的研究成果和所持的不同观点,再从"表面析晶"的角度分别对不同形态石英析晶行为的差异性与不同工艺因素对石英基复合材料的影响机制进行了系统阐述。
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At the beginning of this paper, we briefly introduced the fundamental knowledge of the Newton iterative methods , and the local convergence theorem which extended the classical Newton method, because of the local convergence, the theorem had its certain restrict. Large-scale convergence theorem was proved under the condition that matrix M is irreducible diagonally dominant by Newton's method with line search.At the last part of this paper, we present the method for solving linear complementarity problems arising from journal bearings.
本文首先介绍了Newton型迭代法的基础知识,然后着重介绍了B-可微方程的Newton法,给出B-可微法的局部收敛结论,推广了古典的Newton法,但由于收敛的局部性,该算法仍有一定的不足之处;文章在证明大范围收敛定理时,假设M是不可约对角优势矩阵,采用一维Newton寻查的方法,保证算法的收敛性。
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Therefore, stick to the point, this paper carries through a useful explore and research, the two main points of the research as follows: 1. In order to better apply concept lattice to recommendation system, this paper proposes a lower time complexity and simple method for constructing formal concept lattice, which based on matrix operation.
针对这一问题,本文进行了有益的探索和研究,研究的主要内容为如下两方面: 1为了概念格能在协同推荐系统中得到更好的应用,本文提出了一种时间复杂度低、实现简单的建格方法——基于矩阵运算的建格方法。
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According to the characteristics of green product life cycle, this paper proposes a three-dimensional matrix structure for green product assessment. Based on this structure, this paper also analyzes the objectives and contents of the assessment, and establishes a system model for green product assessment.
根据产品的绿色性能表现在生命周期全过程的特性,提出了绿色产品评价的三维矩阵结构;以此矩阵结构为基础,根据产品的构成特点,建立了集微观评价和宏观评价为一体的绿色产品综合评价系统框架;并建立了绿色产品评价模型。
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By the definition of Green-relation and the analogue of generalized Greens lemma, this paper first studied some properties of H-class、 D--class of rpp semigroups, then by left S-system 、-bisystem and tensor product, we described a blocked Rees matrix semigroup. Especially, the paper studied primitive rpp semigroups .
本文利用在rpp半群上定义的广义Green~(l-关系及相应的广义Green定理,首先研究了rpp半群H~(l-类、D~(l-类的若干基本性质,然后以左S-系、-双系和张量积作为工具,刻画了块Rees矩阵半群结构,最后从带零的本原rpp半群出发,构造出A型块Rees矩阵半群,并证明了一个半群S为本原rpp半群,当且仅当S同构于一个A型块Rees矩阵半群。
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The effect of the elastic-plastic matrix of friction soil with nonrelevant flow rule on the numerical convergence of finite element method is analyzed in this paper; and the effect of elastic modular, poisson ratio and earth pressure coefficient on numerical results are studied in this paper. At the same time, the hybrid element with a mixture of displacement and stress variables and the conventional element with solely displacement variable are compared when used in geomaterials.
在ABAQUS有限元分析软件的基础上,本文研究了服从非关联流动法则摩擦性土体的弹塑性矩阵对有限元数值算法的影响,并研究了弹性模量、泊松比以及地基土压、力系数对数值计算结果的影响,同时探讨了数值分析过程中常规位移元与杂交元在岩土工程中的应用。
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In this paper, a Markovian model for dry-battery market forecast is developed as an application of the Markov chain theory, includiing initial probability vector, transition matrix, proportion of market sharing, market stability, etc, In order to illustrate this model, the paper cites as an example the dry-battery market forecast and stability in a certain district.
干电池市场预测的马尔柯夫模型是马尔柯夫链理论的进一步应用。比如:初始概率向量、转移概率矩阵、市场占有率和稳定性等。为了介绍这种方法,我们以一个现实生活中的例子——某地区干电池市场预测及长期稳定状态来说明。
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Beginning with wave equation, the paper has deduced the propagation of gauss pulses in single mode fiber and fiber grating transmission compensation. The characteristics of cascaded phase-shift gratings are discussed by numerical simulations of coupled-mode theory and T-matrix method. The experimental works and measurement results are shown in this paper. On the other hand, we have introduced the basic theory of EDFA and figured out the characteristics for EDFA at different conditions by numerical simulation. Some experimental results for EDFA are also presented here. In this article, you can find the influence on Optical Fiber Amplifier by Gain Tilt, especially, the negative effect on CSO in CATV transmission system.
论文首先从波动方程入手,对高斯脉冲在单模光纤中的传播演化及光纤光栅透射补偿进行了详细的研究;较系统地介绍了光纤光栅的耦合模理论,并将传输矩阵计算法用于计算级连相移光纤光栅的光学特性;重点介绍了作者在光纤光栅刻制及特性测量方面所做的一些实验研究工作;较系统介绍了EDFA的基本理论,计算出各种条件下EDFA的光学特性,并进行了一些实验研究;综合分析光纤放大器对光纤传输系统的影响,特别分析了光纤放大器增益不平坦对光纤CATV系统中CSO恶化的原因及其解决方法,并研究了光纤布拉格光栅在稳定980nm泵浦源输出功率和输出波长方面的应用;结合一个基于光纤光栅和光纤放大器的光纤用户接入网方案,对光纤用户接入网的若干问题进行了理论与初步的实验研究。
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This paper presents basic theory of Sparse Matrix Converter, controlling method and zero current commutation; Lastly, this paper provide the simulink waveforms based on SIMULINK.
本文介绍了稀疏矩阵变换器的基本原理、控制策略、零电流变换方法,同时给出了基于SIMULINK 的仿真波形。
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The paper analyses optimal switching devices in the distribution networks, sets up a model to decide to judge types and numbers of switchs in proper location of distribution networks and applies to partical swarm optimization to compute. The simulation system is constituted with matlab. The paper discusses and analyses theory of fault location ,excogitates a synthesis matrix algorithm and an algorithm based on GPRS for fault location and isolation.
本文对配电网开关优化配置进行了分析并建立了数学模型,应用粒子群优化算法来确定配电网馈线相应位置的开关种类和数量并进行了matlab仿真;对故障定位的原理进行了详细的讨论和分析,研究出了故障定位的综合矩阵法和一种基于通用分组无线业务的配电网故障定位与隔离的方法。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?