查询词典 extrapolation

The microstructures and phases of the alloys were analyzed by OM, SEM and XRD; the erosion resistance of the alloys prepared by different processing were measured under the conditions of simulated-brine and salt atmosphere, besides the various corrosive rates were calculated by the method of weight lost; the lows of corrosion were analyzed by the electrochemical polarization curve, and the corrosive current was measured through the method of Tafel linear extrapolation.

用光镜、扫描电镜、X射线衍射分析了合金的组织与相的组成，测试了模拟海水及盐雾条件下三种工艺制备的材料的耐腐蚀性能，并用失重法定量计算各自的腐蚀速率；利用电化学极化曲线法分析了三种工艺制备的材料腐蚀规律，用塔菲尔直线外推法测定腐蚀电流。

Corrosion action slope cable used in cable-stayed bridge in different corrosion medium such as synthesis sea water, solution NaCl and simulation acid rain are studied by electrochemical method, for example, linear polarization, Tafel extrapolation and AC impedance method.

对此，本论文以人造海水、NaCl溶液、模拟酸雨作为腐蚀介质，针对不同类型的钢绞线，采用线性极化法、Tafel外推法和交流阻抗法等电化学方法研究斜拉桥拉索结构中钢绞线在不同介质中的腐蚀行为。

We then follow the trend of farmland pattern evolution and take 2001 as the baseline year to forecast the farmland pattern in 2002 through 2010 using linear extrapolation. The result shows that the clustered rather than scattered farmhouse development type would create more integrated farmland pattern through patch integration and form more regular patch shapes that in turn have better effects on farmland utilization.

而在农地利用的变化趋势中，以民国九十年为基准年，采直线之比例关系，推估民国九十一年至民国九十九年建筑总面积，发现若将个别农舍开发改采集村农舍开发方式后，对於块区具有聚集与整合的效果，使农业用地完整性增加，形成较规则的块区形状，对於农业用地利用的确有较佳的影响。

And the reasonable proposal for the construction the region electrical power system was put forwardThe power load forecast is the basis of the power system planning.With the actual planning of regional development,uses a scientific and effective load forecasting methods forecast plans the local load electric quantity,is an important work to the regional power system planning.This dissertation uses the BP algorithm, proposed a double hidden layer structure artificial neural network to the forecast ultra-short-term power system load.After the simulation with the actual data,the method which this dissertation proposed compared to the traditional linear extrapolation Prediction method average absolute percent error of 2.5 percentage points,ten minute load forecasts achieve the average absolute percentage error are smaller than 2.5%accuracy.

本文利用人工神经网络BP算法，提出了一种双隐层结构的电力系统超短期负荷预测方法，经过对实际数据的仿真实验，本文提出的神经网络超短期负荷预测方法比传统的线性外推法预测平均绝对百分误差降低2.5个百分点，十分钟负荷预测达到平均绝对百分误差小于2.5%的精度。

The ballistic trajectory extrapolation of muzzle velocity measure of antiaircraft gun is discussed through simulation technology.

摘 要：根据毫米波雷达在高炮测速中的实际应用，通过仿真的方法对初速测定的弹道外推问题进行了研究。

In the numerical differentiation matlab, useful midpoint formula, adaptive method, Richardson extrapolation methods such as France seek the derivative of the function, the algorithm of the program implementation in the document have been given.

详细说明： matlab中的数值微分，有用中点公式，自适应法，理查森外推算法等方法求函数的导数，算法的程序实现在文件中都已经给出了。

To improve the order of convergence for the modified Douglas scheme,Richardson extrapolation is also presented.

另外每一章均给出数值例子显示所采用数值方法的可行性。

A method for improving the order of convergence by Richardson extrapolation for the Peaceman-Rachford scheme is also presented,which obtains the two order approximating accuracy.

提出一种修正的交替方向隐格式逼近均匀介质中的非连续渗流方程，以及修正Douglas格式逼近非均匀介质中的连续渗流方程。

Therefore in the historical data deficient situation, makes the reasonable extrapolation and the supposition to the situation of Korean Peninsula posthouse establishment is allowed.

由洛阳、太原分别到得幽州，从幽州北上营州路线的考证也取得了一定成果，这些毫无疑问都是唐代与朝鲜交通的重要方面，可资借鉴。

In this paper the extrapolation object is the shorten polynomial but not the original signal itself. This algorithm is much easier than prolate spherical wave function expansion method.

本文采用外推截断多项式的方法对HRV信号进行外推，避免了采用长球函数外推信号运算量大的缺点，可以提高运算速度。

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。。。。