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Firstly, we research the Vlasov antenna with reflector mainly. A new method to calculate the radiation of the antenna is founded with Vectorial Theory of Diffraction, and the corresponding program is made. The reflective characters of Vlasov antenna are studied with Moment Methods, and the results show that the total reflected energy is less than 0.25%. The radiation patterns of the antenna are analyzed, and the formulas to estimate the wave beam parameters and to design the antenna are provided. The feasibility of radiating high-order modes by Vlasov antenna is also discussed and verified. The hermetization of the Vlasov antenna is researched and the results show that with such kinds of hermetization the antenna can work under gigawatt level. The design of the mode converter from TEM to TMoi is studied, which is useful when the TEM coaxial mode is radiated by Vlasov antenna. At last, the flared-end Vlasov antenna is also discussed.

在Vlasov天线方面：用矢量绕射理论建立了天线辐射场的计算模型并编写了计算程序，该程序计算结果在主瓣上与实验测量吻合良好，近旁瓣也基本一致；利用矩量法计算了天线的反射系数，表明该天线有较小的反射，总的能量反射小于0.25％；详细分析了天线的辐射特性，给出了天线辐射波束相关参数的估算公式和天线设计公式；进一步研究和论证了Vlasov天线辐射高阶轴对称模的可行性；对天线的密封方式和功率容量进行了讨论，结果表明在不需很大密封罩的情况下可以获得GW级的功率容量；为了用Vlasov天线辐射同轴TEM模，研究了TEM-TM_(01)模式转换器的设计，得到了一些基本规律；最后，介绍和分析了带有锥形喇叭的Vlasov天线。

Now that was interesting because 3700 tonnes was a substantially larger figure than the consensus estimate of all those lendings, which at the time was about 2200 tonnes.

但是当时公认的数据只有2200吨左右。

At last, making use of load stress chart of old steel bridge, and looking facture criterion as ultimate state equation to carry through reliability analysis. Adopting Probabilistic fracture mechanics to estimate remaining fatigue life of old steel bridge under given reliability.

最后结合我国老钢桥的载荷应力谱，以断裂判据为极限状态方程进行可靠性分析，并利用概率断裂力学方法对给定可靠度下老钢桥的剩余疲劳寿命进行预测。

At that time, the doc tors gave me an estimate of having 3-6 months of healthy living left.

那时， 医生估计我有 3-6个月的健康生存期。

Estimate the slope of the graph at the point x,y

估计图像在点处的斜率

Aiming at automatic registration of multisensor images and multispectral images, we present an Fourier-based registration algorithm to estimate translations, rotations, and scalings in these images.

针对存在平移、旋转和尺度关系的多传感器、多谱段遥感图像配准问题，提出了一种基于边缘特征提取和伪对数极坐标傅里叶变换的频域配准技术。

The results show that a the variation of annual mean runoff of Huayuankou section exist an intrinsic dynamic mechanism, which is the results of joint action of affecting factor of periodicity and non-periodicity, having obvious chaos characteristic; b the correlation dimension of attractor of phase space is 5.09 and saturation inserted dimension is 14. It shows that to establish a mathematical model of the annual mean runoff system of Huayuankou at least requires 6 independent variables and the required saturation inserted dimension for rebuilding phase space is 14; c the steady estimate of Kolmogorov entropy is 0.14, showing the average predictable time of the annual mean runoff variation of Huayuankou is about 7 years and; d using nonlinear deterministic chaos model is more suitable to describe the variation of annual mean runoff of Huayuankou.

结果表明：①花园口年平均径流量变化存在着内在动力学机制，是由周期性和非周期性影响因子共同作用的结果，具有明显的混沌特性；②相空间吸引子的关联维为5.09，饱和嵌入维数为14，这说明要建立花园口年平均径流系统的数学模型，至少需要6个独立变量，重构相空间所需要的饱和嵌入维数为14；③Kolmogorov熵的稳定估计为0.14，说明花园口年平均径流量变化的平均可预报时间大约为7年；④用非线性确定性的混沌模型比完全的随机模型更适于描述黄河花园口年平均径流量的变化。

But Piper Jaffray analyst Gene Munster -- based on longer-than-expected lines at stores and high expectations for online preorders -- more than doubled his initial first-day sales estimate to between 600,000 and 700,000 units, including preorders.

但券商Piper Jaffray的分析师芒斯特将他估计的iPad上市首日销售量提高了一倍，增至60万至70万部，其依据是苹果专卖店外长于预期的购买者队伍以及预计会有很多人从网上订购iPad，他的预期数字中包括预定的部分。

Besides, the data of n observed at perigees are used to roughly estimate the altitudes of the turbopause Zt and their variations according the two distinct vertical distributions of atmospheric composition in low and upper atmospheres: the homogeneous mixing and the diffusive separation.

采用近地点上的n观测资料，根据大气数密度在低层内均匀混合和高层内扩散分离的不同垂直分布特征，粗略地估算出湍流层顶的高度Zt及其变化。

The conception of intellectual capital reflects the change of the resource of enterprises" value. How to increase value by intellectual capital management is the problem in front of all of the enterprises. However, intellectual capital evaluation, which is the first stage of intellectual capital management, has to be connected with enterprise value. Intellectual capital evaluation isn"t ought to only tell the contribution the intellectual capital creates on enterprise value at some moment, but also help high managers know the relationship between intellectual capital and enterprise value. Enterprises should know which intellectual capital is more related with enterprise value, which is the most worthy to investing and paying attention to. Enterprises should pre-estimate the dynamic change which intellectual capital contributes to enterprises value.

智力资本概念的提出实质反映的正是知识经济时代企业价值来源的变化，如何通过有效管理智力资本增加自身价值是摆在所有企业面前的紧迫问题，而作为智力资本管理首要环节的智力资本评估自然也不能脱离企业价值，有效的智力资本评估不仅应能识别出特定时点上企业拥有的智力资本对企业价值做出的贡献，更重要的是帮助企业高层管理人员更好地理解智力资本和企业总体价值之间的关系，弄清楚哪些智力资本与企业价值联系最紧密，哪些智力资本最值得重点投资和关注，预先判断智力资本对企业价值贡献的动态变化。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。