同时估计

The proposed method applies the ellipsoid invariant set to the estimated state and state estimation error. The conditions of invariance and feasibility of estimated state, as well as the stability of the closedloop system are given.

该方法采用双模控制策略，将不变椭圆集概念同时应用于观测器的状态方程和误差方程，给出估计状态不变性和控制输入可行性条件并给出了闭环系统的稳定性定理。

So this paper shows an effective method based on an idea that uses motion compensation, general second-step keystone transform twice and at the same time, finds an isolated point and adopts WVD transform to estimate Doppler parameters for removing range walk and curvature. And what is more, the detailed deductions are given in this paper.

该文提出了一种基于利用运动补偿并两次利用广义二阶keystone变换同时结合利用孤立的散射点进行WVD变换估计多普勒参数的方法来分别消除距离弯曲和距离走动并最终对舰船成像。

The group's members, estimated in the thousands, are largely drawn from poor, young, men from the Kikuyu ethnic group, Kenya's largest and most powerful.

这个团伙的成员估计有数千人，主要从肯尼亚人数最多、同时也是最强大的族裔吉库尤族中吸收贫穷的年轻男子。

Meanwhile, the estimated parameters with equation constrains are derived by using Lagrange multiplier law.

同时利用Lagrange乘数法导出了带有等式约束的最小方差投资组合的参数估计。

The geological explanation of different fractal dimensions was presented via mathematical analyses.Two methods of estimation for fractal dimension,linear and n...

同时，通过模型及其分维值的数理分析，得出不同分维值的地学解释，讨论了分维的线性与非线性最小二乘回归估计法。

The Hausdorff measure for the level sets of multi-parameter symmetric stable processes has been obtained and the inner connection of the measures and local times for it has been demonstrated, which describes the fractal nature for the level sets of this kind of processes. As we know, it is always one of the focuses in the field of random fractal. The reasult of the existence and continuity of the local time for multi-parameter stochastic processes with stable components has been got in the project. Then we gained the measure for the random fractal sets such as the range and graph of this kind of processes. Furthermore, a progress besides the mentioned above in the project is that we have resolved the multifractal analysis of the sample paths for Brownian sheet, that is the multifractal decomposition of white noise in high dimension.

解决了多指标对称稳定过程水平集的Hausdorff测度问题，同时给出N指标d维稳定过程水平集的Hausdorff测度下界的最佳估计，它们揭示了其水平集的测度与局部时之间的内在关系，刻划了多指标对称稳定过程水平集的分形特征，表明了研究此类问题的积极意义，该问题是随机分形研究领域的国内外学者所关注的热点问题之一；解决了多指标稳定分量过程的局部时存在性与连续性问题，进而解决了由多指标稳定分量过程产生的随机分形集--象集、图集的测度问题；此外，本研究项目还解决了布朗单样本轨道的重分形分析，即高维白噪音的重分形分析问题。

The radar installed on the J-11B is believed to be more powerful than the Type 1473 installed on the J-10; it is estimated to be able to track 20 targets and simultaneously lock onto six.

机载雷达方面，歼-11B上所使用的雷达系统，相信要比歼-10上的1473型雷达系统功能更为强大。据估计，这将使得歼-11B能够追踪20个目标，并且同时锁定其中的6个。

But our patron, warned by this disaster, resolved to take more careof himself for the future; and having lying by him the longboat ofour English ship that he had taken, he resolved he would not go a-fishing any more without a compass and some provision; so heordered the carpenter of his ship, who also was an English slave,to build a little state-room, or cabin, in the middle of the long-boat, like that of a barge, with a place to stand behind it tosteer, and haul home the main-sheet; the room before for a hand ortwo to stand and work the sails.

但是，我已被摩尔人吓破了胆，生怕再落到他们的手里；同时风势又顺，于是也不靠岸，也不下锚，一口气竟走了五天。这时风势渐渐转为南风，我估计即使他们派船来追我。这时也该罢休了。于是我就大胆驶向海岸，在一条小河的河口下了锚。我不知道这儿是什么地方，在什么纬度，什么国家，什么民族，什么河流。四周看不到一个人，我也不希望看到任何人。我现在所需要的只是淡水。我们在傍晚驶进了小河口，决定一等天黑就游到岸上去，摸一下岸上的情况。但一到天黑，我们就听到各种野兽狂吠咆哮，怒吼呼啸，不知道那是些什么野兽，真是可怕极了！这可把那可怜的孩子吓得魂飞魄散，哀求我等天亮后再上岸。我说，"好吧，佐立，我不去就是了。不过，说不定白天会碰见人。他们对我们也许像狮子一样凶呢！"佐立笑着说，"那我们就开枪把他们打跑！"佐立在我们奴隶中能用英语交谈，虽然发音不太地道。

For the interpolation problems in which the nodes are on one or more algebraic manifolds, we pointed out the interpolation bases of the lowest degree w.r.t.a graded term order and gave a new algorithm. We also gave a estimation for the degree of the interpolation polynomial.

我们针对插值节点位于一个或几个代数流形上的插值问题，从理论上指出了插值问题在某一分次序下最低次的插值基并给出了新的算法，同时也对插值多项式的次数作了估计。

Based on investigating the short and intermittent structural plane, surrounding rockmass of the huge underground powerhouse in Three Gorge has been divided into five statistical similar areas according to its characteristic of rockmass structure by applying structure plane network simulation. Distributed characteristic of structural plane has been studied and based on it mechanics macrocharacteristic has been studied:(1) It is the first time that based on the result of structural plane network simulation rockmass quality of every structure area has been studied with applying blurred information optimum seeking technique and be compared with and RQD method. The result indicated that it has better effect to evaluate rock quality with blurred information optimum seeking technique.(2) It is the first time that the interrelated relationship of the result of in-suit rockmass deformation test and fractal characteristic of structure on test point has been applied to determine rockmass deformation parameter. The question of evaluating deformation parameters of engineering rockmass has been solved.(3) Anisotropy strength parameters have been determined by applying shear zones simulating method. The result indicated that there are different strength parameters in every structural area, after comparing the result of Fast Lagranian Analysis in continua number simulation method with that of method of weighted mean according to continuity. The result indicated that when a suitable reduction coefficient is been considered rockmass strength parameters can be simply and fast determined with method of weighted mean according to continuity where there is not enough test result.(4) Damage characteristic has been studied based on analysis fractal characteristic of structural plane network by applying fractal-damage coupling method. It is the first time that the concept of damage degree has been set up to evaluate rockmass quality according to the biggest principal damage.

通过对短小、断续性结构面统计特征的研究，将地下厂房区划分为五个岩体结构统计均质区，应用结构面网络模拟技术研究了各个岩体结构均质区结构面的发育分布特征，并以此为基础对岩体宏观力学特性进行了深入研究：(1)首次通过在结构面网络模拟计算结果的基础上，应用模糊信息优化技术研究了厂房区各个岩体结构分区的岩体质量并与岩体基本质量指标研究法、岩体质量指标RQD值研究法作了对比，结果表明以结构面网络模拟结果为基础，应用模糊信息优化技术进行岩体质量评价能够取得很好的效果，解决了工程岩体质量的定量评价问题；(2)首次通过对已有的现场大型岩体变形试验结果的分析及相应试验点岩体结构分形特征的研究，建立了结构面分布的分形维数和岩体变形指标间的相关关系，并首次应用这种相关关系根据结构面网络模拟及分形维数计算结果确定了缺少试验结果的地下厂房各工程部位的岩体变形指标而且应用于围岩稳定性计算，解决了工程岩体宏观变形参数的评价问题；(3)应用在结构面模拟网络图上模拟岩体剪切破坏带的方法，得出了岩体在不同方向上的强度参数，结果表明岩体的强度特性与结构面的发育方向和程度有着明显的关系，各个岩体结构均质区具有不同的强度参数；同时还通过应用拉格朗日差分法对岩体强度指标的数值分析并与按连通率加权平均计算法对比表明，按连通率加权平均计算法在考虑合理的折减系数情况下，可以简单快速地对缺少现场大型试验结果的具体工程部位实现岩体强度指标的估计，通过以上研究解决了工程岩体抗剪强度参数的评价问题；(4)通过结构面网络分形维数的研究，应用分形损伤耦合分析方法，研究了厂房区岩体的损伤特征，并首次引入"损伤度"的概念，建立了应用最大主损伤评价岩体质量的指标体系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失