查询词典 vector decomposition

During the first stage of the thermodegradation in nitrogen, the thermal stability of EVA /clay nanocomposites decreases din to the decomposition of octadecyl ammonium and a catalytic effect of acidic sits on the clay lavers deriving from the decomposition.

实验结果表明，通过离子交换反应，可使长链十八胺阳离子嵌入粘土片层间，增大了粘土的片层间距；对于EVA/有机化粘土体系，通过熔体插层可使EVA分子链插层于粘土片层中，使粘土片层被进一步撑开；EVA/粘土纳米复合材料具有较好的力学性能。

Decomposition rates determined by the latter approach solved the problem of underpredicting litter decomposition rates by mesh bag technique.

采用后一种方法测定的凋落物分解率可以解决尼龙网袋法测定分解速率结果偏低的问题。

This paper studies the thermal decomposition of a number of dithioesters,trithiocarbonates and xanthates and gives their decomposition rates at various temperature and Arrhenius plots for K_d values.

分析了链转移剂结构对热稳定性的影响，并给出了它们热分解的活化能和指前因子。

The article introduces the thermal decomposition kinetics of potassium oxalate-hydrogen peroxide in nitrogen, using the programmed temperature method and NETZSCH STA409 PC/PG Comprehensive Thermal Analyzer, measures the sample's TG and DSC curves in the condition of different heating rates in nitrogen, and analyses the kinetics model of thermal decomposition by the multiple nonlinear regression.

利用程序升温法在NETZSCH STA409 PC/PG综合热分析仪上研究了草酸钾－过氧化氢在氮气氛围中的热分解动力学，测定了样品在氮气中不同升温速率下的TG和DSC曲线，采用多元非线性回归对其热分解动力学模型进行了筛选研究。

Based on the above-mentioned parameter, according to the relationship between robust estimation and nonlinear diffusion, the Turkey loss function is introduced as the diffusion function in SAR image decomposition because of its better performance, and the contour of an image is extracted by the Turkey diffusion function with the proposed diffusion parameter mentioned above. The experiment results indicate that the Turkey loss function based diffusion process can strengthen the conspicuous contour. Additionally, a Raita\'s criterion-based method, solving the automatic diffusion threshold, is proposed to automatically set the threshold in diffusion decomposition.

针对基于梯度参数和局域方差系数的扩散在对SAR图像进行分解时存在的缺陷，提出了一种局域方差系数与窗口幅度均值积的扩散系数，该系数能够更有效地实现潜在目标区域和背景区域的区分；在此基础上，根据鲁棒估计与非线性扩散的联系，引入扩散效果更好的Turkey损失函数作为图像分解中的扩散函数，并结合局域方差系数与窗口幅度均值积的扩散参数来提取图像的轮廓，结果表明：基于Turkey损失函数的扩散过程对特征突出的边缘所起的&强化作用&更加明显；此外，针对扩散分解中的阈值确定问题，提出了一种基于拉依达准则的扩散阈值自动求解方法，实现了扩散阈值的自动求解。

At different heating rates, thermal decomposition process and thermal decomposition kinetics of basic zinc carbonate are researched by thermal analysis method in nitrogen atmosphere.

在不同升温速率条件下，用热分析法研究了碱式碳酸锌[2ZnCO33Zn2]在氮气氛中的热分解过程与热分解动力学。

To estimate the activation energy of the decomposition, the Friedman isoconversional method was applied. The activation energy was calculated as a function of conversion. The results confirm that more than one reaction occurs in the decomposition of basic zinc carbonate.

采用Friedman法对实验数据进行分析，结果表明，反应的活化能数值随着分解率的不同而变化，由此推断该反应是由多步反应组合而成的，其平均表观活化能E。

Dynamic kinetic analyses were performed for the thermal decomposition of basic zinc carbonate by means of TG and SDTA measurements in CO2. The thermal behavior and the kinetics of the decomposition were studied.

运用TG／SDTA同步分析仪，研究了碱式碳酸锌在流动二氧化碳气氛中的热分解过程及热分解动力学。

First, through comparing the decomposition technology of Sodium Aluminate Solution, it is produced by using the technology of Seed-crystal Decomposition of Sodium Aluminate Solution.

首先通过铝酸钠分解工艺的比较，确定应用铝酸钠溶液晶种分解工艺进行高白氢氧化铝的生产。

Based on the proposed idea, the author presents three linear algorithms:"Orientation Invariance of Rotational Axis ","Skew-Symmetric Matrix Decomposition ", and"Quaternion Orthogonal Decomposition ".

并在上述思想指导下，提出了旋转轴法向不变、反对称阵分解和四元素正交分解三个精简变量的线性算法，其中QOD算法最具有一般性。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。