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The hardness and wear resistance increase with increasing TiB2 content. Adding about 1.5%Mg in melt restrains the conglobation of the TiB2 particles, which makes the size of TiB2 particle decrease and the distribution of TiB2 particle is more homogeneous. The strengthening effect of TiB2 particles is enhanced and the hardness and wear resistance of composites are obviously improved. The excess Mg decreases the refinement effect of TiB2 particles, but the hardness and wear resistance are improved continuously.

结果表明：反应生成的TiB2颗粒平均尺寸约为0.5 μm，材料的硬度和耐磨性随着TiB2含量的增加而提高；添加1.5%Mg元素可明显细化TiB2颗粒，且使其分布更加均匀，增强TiB2颗粒的弥散强化和细晶强化效果，复合材料的硬度和耐磨性显著改善；过量的Mg元素(3%)会造成TiB2颗粒细化效果的下降，但其硬度和耐磨性能继续得到改善。

Many technical measures have been taken as follows to ensure the safety management: a. operation steps of installing the cross joints are improved to guard against damage on metal sealing and the hanger; b. well logging is applied to gas testing so as to achieve early warning in a scientific way; c. the burning processing unit of QTI3000 is widely used to reduce the bad impact on the environment; d. the articulation of perforating gun is improved to alleviate labor intensity and shorten the perforating time so as to shut down the well promptly in case of any accidents.

在安全技术措施上，改进了坐完井悬挂器操作步骤，避免损坏金属密封，造成悬挂器损坏；将录井技术应用于试气作业，实现了科学预警；推广应用了QTI3000型焚烧处理装置，降低了对环境的不良影响；改进了射孔枪的连接方法，减轻了工人的劳动强度，缩短了起射孔枪时间，能在起钻发生井喷失控前及时控制关井。

Based on the results the structure use is improved and the deadweight is reduced by 18.23% for the improved structure parameters.

在此基础上进行梁的结构设计尺寸改进，获得了改进后的结构参数，梁的重量减轻了18.23%。

The different molecular structure of PPV-like derivatives are proposed to be responsible for the improved deliquescence, the enhanced electron injection and improved performance in PPV-like light emitting diodes.

本文主要介绍了通过对PPV类衍生物的分子结构修饰可以大大提高材料的溶解性、可加工性、发光特性等，同时较详细地综述了近年来国内外PPV聚合物的研究进展、前景和存在问题。

Result: The results showed that the serum lipids,superoxide dismutase and maleic dialdehyde of treated groups were obviously improved as compared with those of the controlgroup.The tissue pathologicaldamage was improved in different degree,and ICAM-1 and its expression of mRNA was decreased obviously.

结果：两治疗组血脂、血清MDA含量均明显降低，SOD活性显著升高，不同程度的改善了主动脉组织病理损伤，ICAM-1及其mRNA的表达水平显著下降。

The weight values in NLSM were adjusted automatically according to target data, which allowed the measured data with different dimensions or ranges to be treated at the same level, and thus the accuracy and stability of algorithm were improved accordingly. Derivative was replaced by the difference quotient in NLSM which further improved the algorithm speed.

非线性最小二乘法的权值根据目标数据自动调整，使得不同量纲和不同数值范围的观测数据可以在同一水平上进行，提高了计算的精度和稳定性；另一方面用差商近似代替导数加快了算法的收敛速度。

It was suggest that the yield of tobacco in unit area was significant increasing and the quality was improved along with the altitude increase in Liuyang tobacco area. The tobacco leaves production at the place where the altitude from 400 meter and 900 meter was propitious to postpone the bearing period and growth and development of tobacco plants. It was the base of maturation endurance and could advance the tobacco leave maturation degree of all parts of tobacco plant. And it could hasten the orange tobacco leave ratio of the whole tobacco plant. It was boosted leaves unwrapping of top tobacco plant and the statuses of tobacco leaves, especially the top leaves, were significantly improved. The tissue structure of all parts leaves on tobacco plant were more loosen and the colour and luster of tobacco leaves was more vivid. The nicotinamide content in top leaves were digressive at a certain extent, on the contrary, the contents of the reductive sugar and kalium were increased at different extent. At the same time, it was benefit to play down the pesticide rudimentai of tobacco leaves and increased security of tobacco leaves.

结果表明：在浏阳烟区随着海拔高度的增加，单位面积烟叶的产量有着明显的增加，烟叶质量也有一定程度的改善；在海拔400—900m的地方进行烟叶生产，有利于延长烟株大田生育期，有效缓解浏阳烟区7、8月份的高温逼熟现象，有利于烟株的生长发育，为养好烟株的耐熟性打下良好的基础、促进各部位烟叶成熟度的提高；同时可以有效的促进烟株各部位橘黄烟叶比例的上升，对上部烟叶的开片也有着明显的促进作用，烟叶身份特别是上部烟叶的身份得到明显的改善，各部位烟叶组织结构更加疏松，烟叶色泽更加鲜亮；上部烟叶烟碱含量在一定程度上有所降低，各部位烟叶还原糖、钾含量有着不同程度的增加烟叶香气特征更加明显；香气量有一定程度的增加，吸位更加醇和、余味舒适；同时也有利于减少烟叶的农药残留量，提高烟叶的安全性。

The validities of amplitude features and their extraction method suitable in high-frequency SAR image are analyzed when they are used in UWB SAR image. An extraction approach of amplitude feature based on target contour is presented, and the corresponding effective amplitude features are proposed. The old dihedral angle model is analyzed and improved. The approach of azimuthal feature extraction is proposed based on the conclusion of the improved dihedral angle model. The problems, which appear when the common change detection methods are used to extract the change feature based on ROI, are analyzed. And a robust and feasible extraction approach is presented.

分析了适于高频SAR图像的幅度特征及其提取方法用于UWB SAR图像时的有效性，提出了基于目标轮廓的幅度特征提取方法及相应的适用幅度特征；分析了已有二面角模型在建模过程中存在的问题并进行了改进建模，基于改进二面角模型结论提出了方位向特征提取方法；分析了常用变化检测方法用于提取ROI变化特征时存在的问题，提出了一种稳健可行的变化特征提取方法。

A fuzzy predictive control method based on improved T-S fuzzy modeling method thus is acquired. A series of predictive model is obtained by improved T-S fuzzy modeling method. The model includes input and output data before current time and future input value. This method does not need to solve Diophantine equation and nonlinear programming.

并在此基础上给出了一种基于改进递阶聚类模糊T-S模型建模方法的模糊预测控制算法，根据预测控制中的预测步长，建立多个包括当前时刻以前的输入输出数据、未来时刻的输入量的模糊预测模型，可以在不求解Diophantine方程的情况下通过最优化性能指标得到预测控制律。

During the calculation the results got by quintic spline kernel was the best so it was chosen as the proper kernel for the SPH simulation. By comparison of the simulation results got by SPH and finite volume method, it was proved that the buffer cells method proposed in the SPH simulation to implement the Dirichlet boundary conditions was accurate, and this is of great importance for the simulation of flows pass a pipe. At last, the SPH method was improved to simulate the liquid-solid two phase flows and the results show that this method was appropriate for the simulation of flows containing viscous fluid and macroscopic solid components. Now the two methods are both able to predict the continuum flows and rarefied flows severally, but the hybrid program still has some aspects to be improved.

首先用标准算例验证了SPH方法的理论模型和计算程序的准确性；通过比较确定选用五次样条核作为计算低雷诺数下的粘性连续流动时的核函数；采用SPH方法和有限体积法分别对同一管道流动进行了对比计算，证明了本文提出的边界缓冲区方法在实现SPH方法中的流体边界条件时的有效性，解决了SPH方法模拟管道流动时的一个关键问题；巧妙地使用SPH方法对化工分离流动中常见的固液两相流及固液耦合作用进行了模拟尝试，获得了较好的结果；在跨尺度计算方面，目前两个子程序已经能够分别模拟连续的和稀薄的二维管流问题，二者的耦合计算程序还处于调试和优化阶段，各个参数对于计算精度和计算速度的影响规律仍在探索中。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！