查询词典 quadratic

In this paper, we define quadratic spline as wavelet, do the two dimentional dyadic wavelet transform on near-infrared galactophore image, and get local modulus maxima from wavelet transforms results----rnodulus and angles, so we can find the blood vessel edge image in each scales, at last, we compute a good edge image which synthesize the characters in each scale.

本文中用二次样条小波作为小波基函数，对乳腺近红外图像进行二维二进小波变换，计算小波变换结果的局部模极大值点，得到各个尺度下的乳腺近红外图像血管的边缘，最后得到综合了各个尺度特征的较好的血管图像的边缘。

The joint inversion of some geodynamical parameters and numerical simulating the crustal stress field is presented in this paper. The four nodes quadratic finite element in Chinese area is constructed and the "split node" technique is employed for introducing the fault parameters into the finite element computation.

讨论了利用地应力主方向和GPS资料联合反演与之相关的地球动力学参数及数值模拟地壳应力场的方法，建立了中国及其邻区的四节点有限元模型，解决了有限元数值解算中节点位移不连续的问题。

Firstly, three popular ionosphere models (Klobuchar model, IRI and JPL GIM) were compared with grid TEC. Then CNC TEC Map using Kriging method with constant drift, linear drift and quadratic drift were compared with each other. Then TEC map derived from nearest neighbor method, polynomial regression method (order=5) and Kriging method with different temporal resolution of 5 minutes, 30 minutes and 120 minutes were compared.

比较了目前被广泛使用的电离层模型（Klobuchar， IRI和JPL GIM）与真实的TEC分布的符合情况；比较了常数漂移（普通Kriging方法）、线性漂移和二次漂移的Kriging方法；在三种不同的时间分辨率（5min， 30min和120min）下，比较了Kriging算法、就近插值算法和多项式回归算法（5阶）绘制CNC TEC Map的效果。

The cementitious grouts mainly applies to anchor bolt、equipment foundation and quadratic grouting of steel structure soleplate, reconstruct and consolidate of concrete structures and aperture grouting of prestressed concrete and concrete structure.

水泥基灌浆材料主要应用于地脚螺栓锚固、设备基础及钢结构柱脚底板的二次灌浆、混凝土结构改造、加固及后张预应力混凝土结构孔道灌浆。

It constructs the necessary and sufficient condition between the positive definiteness of homological quadratic and finite representation type.

最后构造遗传artin余代数上的同调二次型正定性与有限表示型之间的充分必要关系。

The basic characteristics of the Stark map of Ba atom are as follows: in weak-electric field, the Rydberg states with small angular momentum numbers show a quadratic Stark effect, and those with large angular momentum numbers no longer degenerate and show a linear Stark effect, which is hydrogenic.

研究结果表明：在弱电场下，低角动量态由于具有较大的量子亏损而随着电场强度显示出二次Stark效应；而高角动量态由于量子亏损为零，并在电场下解除简并，随着电场强度的增加而呈现线性Stark分裂，具有显著的类氢性质。

Osmic Habits As Probability Waves by Ken Wilber - This quadratic formulation gives us purchase on the nature of the relationships between the subjective, objective, intersubjective, and interobjective dimensions of existence.

en Wilber著-这个二次方成给我们能力以找出存在的主观，客观，交互主观，交互客观的自然关系。

With the guide of non-linear program theory, by using interpolative steps and inexact line search, an improved conjugate gradient method was found, by which the training rate of BP networks increases by tens or hundreds of times. Moreover, the improved method is effective to solve non-linear equations for which Newton's method does not converge owing to the problems of the quadratic derivative and inverse matrix.

通过大量的数值模拟试验发现，在非线性规划理论的指导下采用间插步骤和不精确的一维搜索技术改进的共轭梯度法，是基于梯度和共轭方向的连续搜索算法中最有效的算法，这种算法使BP网络的训练速度提高几十到几百倍，使BP网络的实际应用效果大为改善；而且这种算法对于用牛顿法由于求二阶导数和求逆矩阵等问题难于收敛的非线性方程组的求解也是很有效的。

With quadratic regression general rotation design,effects of CaCl2,SA,Hydrogel on drought resistance of Davidia involucrate was studied by pot culture experiment.

采用二次通用旋转组合设计，对珙桐幼苗进行盆栽控水试验，研究了水分胁迫下CaCl2、SA和保水剂对珙桐幼苗抗旱性的影响。

Davidia involucrate, a relic species of paleotropical kingdom in Tertiary period and belonging to Davidiaceae with a single genus, is one of the first-class protective plants in China. In this paper, a pot culture experiment with quadratic general rotation design was conducted to study the effects of CaCl2, salicylic acid, and a water-retention agent on the drought resistance of D.

采用二次回归通用旋转组合设计，对国家一级保护珍惜植物珙桐幼苗进行盆栽控水试验，研究了水分胁迫下氯化钙(CaCl2)、水杨酸和保水剂对珙桐幼苗抗旱性的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。