为有效识别光斑中心，针对无衍射激光斑光图像特点，提出了一种由亮度梯度确定图像中心的方法。
A method to center an image by brightness gradient is proposed based on the features of the non-diffracting laser circular image.
将研究结果应用于普通稠油油藏，给出了利用启动压力梯度确定极限泄油半径及合理井距的理论计算方法。
This method can be used for conventional heavy oil reservoir to calculate ultimate drainage radius and reasonable well spacing through starting pressure gradient.
确定每个高度的相关颜色梯度，提取每个像素的高度数据，然后将第二级图像分层以生成计算出的高度图像。
The associated color gradients are determined for each altitude, height data for each pixel is extracted, then the secondary image is sliced to produce the computed altitude images.
如果满足检验条件，但是不是处处都有定义,那就不确定了,你不能肯定，是不是梯度场。
If you satisfy the test but you are not defined everywhere then there is still a bit of ambiguity and you don't know for sure.
由上次的测试可知，如果一个东西是保守的，要确定是不是梯度，我们只需要计算旋度，查看它是否是。
The test that we saw last time saying, well, to check if something is a gradient field if it's conservative, 0 we just have to compute the curl and check whether it's zero.
确定一点，那么对我来说，这点的梯度向量就是确定的。
If I fix a point, then the gradient vector at that point is given to me.
怎样确定一个场是不是梯度？
Yes? How do you determine whether something is a gradient or not?
周二我们就知道，怎样确定一个场是不是梯度，如果确实是梯度的话，怎样算出势函数。
So, actually on Tuesday we'll see how to decide whether a vector field is a gradient or not, and if it is a gradient, how to find the potential function.
给出了考虑注采比和启动压力梯度的平均地层压力和边界压力的确定方法。
The method is presented to determine formation average pressure and boundary pressure with threshold pressure gradient and injection-production ratio.
针对不确定的线性系统，研究鲁棒梯度型迭代学习控制的设计问题。
Robust gradient-type iterative learning control (ILC) was studied for a class of uncertain linear systems.
通过确定尺度相乘后的梯度图像，采用非最大值抑制方法得到边缘图像。
Using the non-maximal suppression method, the edge map is obtained by confirming the gradient map of the scale multiplication.
等人提出的重力归一化总梯度法是一种利用重力数据来确定场源以及密度分界面的方法。
The normalized total gradient method of gravity presented by V. M. Berezkin et al is a method for determining field source and density interface by means of gravity data.
从而进一步确定我国某一地区的温度场梯度模式，以及这一温度模式对结构的应力和挠度的影响。
Then I can further make sure the temperature mode and its effect on the stress and line deformation in one region of our country.
地层破裂压力(梯度)是确定地层压力检测的一个重要组成部分，对钻井、完井和压裂等施工都相当重要。
One of the important parts of formation pressure detection is to determine formation fracture pressure, which is important for drilling, well completion and fracturing.
本文提出了一种利用梯度的方向信息，对微分图象进行细化，并确定一测量函数进行边缘点连接，以实现图象边缘检测的方法。
An edge detecting method for digital image is proposed using direction information of the gradient to thin off the differential image and defining a measuring function to link the edge points.
本文介绍一种用黏度图来确定任一速度梯度下黏度的方法，所定黏度更接近井眼实际情况；
The paper introduces a method that utilizes viscosity diagram to determine viscosity under any speed gradient. The viscosity defined is more close to the practical condition of well bore.
鉴于产品开发要求，试验研究确定选用蔗糖密度梯度离心方法作为流感疫苗的纯化手段。
As technological research findings will be industrialization, we choose the sucrose density gradient centrifugation as purified method and study the postorder work of purified virus-containing fluids.
对一幅给定的道路图像，首先计算其梯度图像，然后利用HOUGH变换确定粗略道路区。
Compute the gradient to a road image, and then make HOUGH transform on it.
宏观根系吸水模型的边界条件容易确定和控制，但该类模型忽略了根系微域的水势梯度和其他类似现象。
The boundary conditions were easily determined and controlled by the macroscopic models, while the gradient of water stress in the micro-zones of roots was ignored.
本文提出一种基于车牌图像梯度直方图和灰度直方图确定车牌类型的方法。
This paper presents a method of determining the type of vehicle-license-plate based on the gradient histogram and the gray histogram of the image of a vehicle-license-plate.
用归一化总梯度法确定油气上方场源位置；
Normalized total gradient method, which can be used to determine location of magnetic field source above hydrocarbon accumulations;
井下随钻流量监测技术具有很高的监测精度，能够对井眼压力进行更加精细的控制，还能够对压力梯度范围很好的确定。
The technology of monitoring well bottom while drilling has high precision, which can control borehole pressure more precise, but also the scope of the pressure gradient is well established.
并确定了产生非线性渗流的压力梯度区域。
Meantime, the pressure gradient region, which producing the non-linear seepage flow, was calculated.
本文从输入输出的角度研究带有动态反馈不确定性系统的类梯度性。
The paper studies the gradient-like property of the systems with feedback uncertainties from an input output point of view.
再用石油醚、乙酸乙酯进行梯度提取，确定乙酸乙酯提取物的活性更优，测得总黄酮含量为27.73%。
Then gradient extraction was carried out with petroleum ether and ethyl acetate, and the activity of extracted substance with ethyl acetate was better than others.
为确定多层人工神经网络的权值和阈值建立了混合求解方法，即迭代前期采用BP算法而迭代后期采用梯度优化法进行计算。
Mixed method is built to calculate the weights and thresholds of multi-layer neural network by utilize BP algorithm and terraced optimizations.
为确定多层人工神经网络的权值和阈值建立了混合求解方法，即迭代前期采用BP算法，而迭代后期采用梯度优化法进行计算。
Mixed method was built to calculate the weights and thresholds of multi-layer neural network by utilize BP algorithm and terraced optimizations.
本文介绍了一种用重力水平梯度相关函数异常确定断层位置和发现隐伏断层的计算方法，并配合归一化总梯度等方法计算断层的产出位置。
A calculation method of correlation function anomalies of gravity horizontal gradients for corroborating the locations of faults and discovering burried faults has been introduced in this paper.
利用优化函数的梯度阵和海森矩阵建立函数的二阶近似表达式在已确定的优化结果反向计算结构参数。
To reversely calculate structural parameters by using second-order approximate expression of the gradient matrix and Hessian matrix for optimization function in identified optimization results.
本文根据常微分方程参数反问题的数学理论，将正交化方法同有限差分法结合用于确定水质模型参数，并与正则化方法、最速下降法和共轭梯度法作了比较。
The comparison of the calculation results show that orthogonal rule method is fast, simple and reliable, and is applicable to the calculation of the water quality modeling parameters.
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