查询词典 gradient of scalar field

Fig. 7 Axial magnetic field contact arc

图7 纵向磁场触头电弧

According to the results of the outer driving and inner driving cases as well as of the axial electric field case, it is found that the electrical conductivity and permittivity of the liquids have a complicated and profound effect on the behavior of the coaxial jet.

通过比较外驱动和内驱动情况下的计算结果以及轴向电场作用下的稳定性分析结果，发现流体的电导率和介电常数对不稳定模的增长率有着复杂而显著的影响。

The fist gets the manufacturing license of axial fans in this field.

本公司在同行业中首家荣获轴流风机生产许可证（许可证号：XK06-135-00060）。

In the very near field, the axial irradiance distribution has a variety of subtle effects as changing its aperture parameters.

在很近场区，二元环形孔径的在轴光强分布对孔径结构比较敏感，这些特性使这种孔径在光子学和光纤光学的应用方面具有潜在的价值。

In the second part, the yan jingxiang shuangtongliang model for radiation and the linear time perturbation theory are used in this paper, and the helical magnetic instability is analysed in an axial magnetic field.

第二部分：采用沿径向双通量辐射模型和与时间有关的线性微扰理论，讨论了在轴向磁场中影响电弧螺旋不稳定性的一些因素。

Moreover the effects of the modulation coefficient and axial magnetic field on the electronic conductance are researched by PIC simulation.

最后使用粒子模拟研究了电压调制系数和聚焦磁场对电子电导的影响。

Based on the radial and axial solenoid formula, the axial and external magnetic field homogeneities of the detecting coils are analyzed in detail.

通过分析不同几何尺寸的线圈中轴线上磁场的变化情况，并借助直螺线管的径向和轴向公式，对轴外磁场均匀性进行了探讨。

Based on the requirements, axial symmetry air-cored coil is selected as the generator of magnetic field.

本论文根据材料测试要求，选择轴对称空心线圈作为磁场线圈。

The improved electrode can produce stronger axil magnetic field and the axial magnetic flux density at contact edge was similar to maximum value.

对铁芯式两极纵磁真空灭弧室触头间隙的纵向磁场和铁芯中涡流进行了数值分析，根据分析结果，对触头结构进行了改进。

Axiomatic thought applied in theory construction is introduced into the field of evaluation in this paper.

将用于理论构建的公理化思想引入评价领域，从基础理论层面为评价的发展作支撑。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。