查询词典 absolute class field

Many properties of medium, such as the dispersion relation and non- linear Landau damping, are closely related with this characteristic quantity. Taking into account the contribution of color field self-interaction, by decomposing the quan- tities in the equations into regular and fluctuation parts, then iterating the fluctuation parts according to the weak field, the color permittivity including the color field self- interaction is obtained.

本文计及非阿贝尔自作用项的贡献，利用把方程中的相关量分成正规项和涨落项的方法，按弱场迭代求解色动力学方程，得到了包含自作用贡献的非线性介电容率。

The speed-sensorless vector control and the identification of motor parameters in this paper are the two novel research of vector control.Using asynchronous machine's mathematic model in three-phase static reference frame, this paper has derived it's mathematic model in two-phase static reference frameand in two-phase rotating reference frame, and got the coordinate transformance formulus based on the constant magnetic force and power force, by compared different field orientation methods, we can find that field orientation at rotor field can realize the decoupling of the stator current flux component

无速度传感器矢量控制和电机参数辨识是矢量控制的两个新的研究方向，本文利用异步电机在三相静止坐标系下的数学模型推导出两相静止坐标系、两相同步旋转坐标系下的数学模型，根据磁动势守恒和功率守恒的原则，得出各坐标变换公式；通过不同磁场定向方式的比较发现，异步电机按转子磁场定向时定子电流励磁分量和转矩分量可以比较方便地实现解耦。

At last, the goal is that devices between the field level and the baylevel is easy to interlink,in spite of voltage being l0KV or 500KV insPitC of GlS or trolly wire being used, in spite of oPtical voltage/currenttransducer or combined voltage/current sensors being used in the field level, in spite of devices produced by ABB or GEC being used, in case that the interface scheme (including adopting which kind of network and standard) between the field level and the bay level is confirmed.

最终要达到这样一个目的，一旦过程层与间隔层的接口方案确定（包括确定使用何种网络、依据哪一个标准），那么不管系统电压是10KV还是500KV，不管是GIS还是架空线，不管过程层使用的是组合式电压/电流传感器还是光纤电压/电流互感器，不管过程层使用的是ABB的设备还是GEC的设备，过程层的设备就可以同间隔层的设备很容易地实现互连。

Here, education is not an abstract conception and theory, but a rich, developing and meaningful field of dialogue. The teachers bear the essential meaning and value of education as a direct participator, experiencer and possessor of more cultural capitals. Undoubtedly, teachers'position is highlighted unarguably in this field. So the article describs the relationship between teachers as"I"and"others"in educational field discreetly.

这里，教育不再是一个抽象的概念或理论，而是一个展开的、丰富的意义实现的&对话场&，在这一场域中，教师作为直接的参与者、体验者、更多文化资本的占有者，承载着教育根本的意义和价值，其在&场&中的地位无可争辩地凸显出来。

Uncooled focal plane array thermal imaging system is used widely in both military field and civilian field for its many merits, and it is one of the focuses of current development in the field of thermal imaging system.

非制冷型焦平面阵列热像仪是美国20世纪90年代开发出来的高科技产品，它具有许多优点，在军事，民用等诸多领域都有广泛的应用，是当前热像仪领域的研究热点之一。

Inversion holes caused by the vertical electric field EV/ are located in the spacing of two neighboring nC-regions on the interface by the force from lateral electric field (EL/ and the compositive operation of Coulomb's forces with the ionized donors in the undepleted nC-regions. This effectively enhances the electric field of dielectric buried layer EI/ and increases breakdown voltage

纵向电场所形成的反型电荷将被来自横向电场的电场力和未耗尽n+区内高浓度电离施主杂质的库仑力综合作用下固定于界面两个n+之间，从而能有效的提高介质场，增强器件的击穿电压。

Shim current calculation When shim coils are excited by appropriate current, they can generate correcting magnetic field to compensate the imaging magnetic field unhomogeneity. Based on the indirect calculation method, we proposed a novel iterative optimization algorithm to calculate shim current. Because there is a direct proportion relationship between FID signal and magnetic field homogeneity, we use the intensity of FID signal as feedback information to the calculation. Shim current can be worked out in less than 3 minutes. This satisfied the requirement that active shimming should be performed in real time.

5匀场电流计算对匀场线圈施加适当的电流后才能产生校正磁场消除成像磁场的非均匀分量，本文在匀场电流间接计算方法的基础上，利用磁共振成像原理中磁场均匀性与系统FID信号强度成正比的关系提出了一种电流迭代优化算法，将系统FID信号强度的变化作为反馈信息，能够快速计算出匀场电流对成像磁场进行补偿校正，平均耗时不到三分钟，满足磁共振成像系统对有源匀场的实时性要求。

Shim current calculationWhen shim coils are excited by appropriate current, they can generate correcting magnetic field to compensate the imaging magnetic field unhomogeneity. Based on the indirect calculation method, we proposed a novel iterative optimization algorithm to calculate shim current. Because there is a direct proportion relationship between FID signal and magnetic field homogeneity, we use the intensity of FID signal as feedback information to the calculation. Shim current can be worked out in less than 3 minutes. This satisfied the requirement that active shimming should be performed in real time.

5匀场电流计算对匀场线圈施加适当的电流后才能产生校正磁场消除成像磁场的非均匀分量，本文在匀场电流间接计算方法的基础上，利用磁共振成像原理中磁场均匀性与系统FID信号强度成正比的关系提出了一种电流迭代优化算法，将系统FID信号强度的变化作为反馈信息，能够快速计算出匀场电流对成像磁场进行补偿校正，平均耗时不到三分钟，满足磁共振成像系统对有源匀场的实时性要求。

Unoriented ZnO nanowires are fabricated either on the surface of silicon wafer or at the tip of needle-like tungsten by vapor-phase deposition. Both the plane field emission and tip field emission of ZnO nanowires are studied using a field emission microscope.

运用气相沉积方法分别在硅片表面和钨针尖上制备了非取向生长的ZnO纳米线，并通过场发射显微镜研究了纳米线样品的平面场发射特性和针尖场发射特性。

The road to the house was untarred, red mountain soil, but there was plenty of rich black soil in the field in front of the pig pens. The farmer chased the pigs out of the house onto the field."It was just a mountain area full of trees and grass here," he said."We set up electric fences around the field, but you only need to turn it on a couple of times. Pigs are smart and learn quickly, they won't try to escape after that."

通向房子的路是红色的土路，但牧场里是肥沃的黑土，这位年轻人把猪从猪舍里赶到这片土地上，这里以前是山区到处都是树和草，他说道：&我们在周围设立了电网，但只需通电一两次就可以了，因为猪很聪明，一两次触电之后，它们就不会试图逃脱了。&

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。