查询词典 directional

Using a purely feed forward neural network model, we show that following repeated directional activation, NMDA-dependent long-term potentiation/long-term depotentiation could result in an experience-dependent asymmetrization of receptive fields.

我们用纯粹的前馈神经网络模型研究表明在重复定向激活后，NMDA依赖的长期增益作用/长期减弱作用导致依赖经验的接收区不对称。

The results indicate that as the ERT has a advantage of being able to multi-directional imaging and monitor, on the basis of a analysis of resistivity images obtained at different directions, it is possible to characterize the spatial distribution patterns of the rock structure, and illustrate the anisotropic properties of the spatial distribution patterns in the rock resistivity changes during water saturation and desaturation processes.

结果表明，电阻率成像法在分析岩石裂隙介质的各向异性方面具有多方向成像和动态监测的优点，可以通过对不同方向上获得的电阻率图像的分析，提取出岩石沉积结构的空间分布模式，清晰地反映出岩石在饱水和排水过程中电阻率变化空间分布模式的各向异性特征。

In modern specification of handset, there is one about SAR. However, current mobile phone antenna is dipole antenna with omni-directional radiation pattern in azimuth plane. So much better performance of antenna means higher SAR value. Therefore, in order to improve SAR performance, designer may be forced to detune antenna or use resistor. The two methods will reduce efficiency of antenna.

在移动电话的技术规范中往往有SAR值的要求，这给手机天线的设计带来了严峻的挑战，因为现代的手机天线基本上是在水平面具有全向辐射特点的偶极子天线，因此天线的性能越好往往SAR值越高，所以有时为了降低SAR值甚至故意劣化天线的性能。

Directional dipolar interactions in the clusters lead to magnetic anisotropy, which makes it possible to align the clusters in a magnetic field (900 Oe).

纳米簇中的定向双极作用将导致磁各向异性的形成，因此有可能实现纳米簇在磁场中的直线排列。

Then, depending on straits of the laneway timbering" s domanial knowledge, the author adopts the intellective structure of "database" plus "repository and positive and negative bi-directional reasoning mode. Moreover, running advanced Visual Basic 6. 0 high-class programme language, he develops and finishes the consultative expert system of laneway timbering design which has UI friendly and structure height blocking .

然后，根据巷道支护领域知识的特点，采用&数据库&+&知识库&知识结构和正、逆双向向推理方式，并运用先进的Visual Basic 6.0高级编程语言，研制完成了用户界面友好、结构高度模块化的煤矿巷道支护设计咨询专家系统。

With the centrifugal force feeding the moten metal through ingates into casting, the directional solidification is obtained from the outside of the casting toward the downgate at the centre of rotation.

金属液在离心力作用下通过内浇口对铸件进行补缩，形成了从铸件外缘到旋转中心直浇口处的顺序凝固。

By describing Pythagorean theorem, the first time-space view explain the plane-line thought which impacts human's thinking manner; the second time-space view is absolute time-space theory of Newton and three-dimensions space-time view intersected by space-time; the third space-time view is curve space-time view which is generated from Einsteinian relative theory. The fourth space-time view is the directional, irreversible entropy time-space thought; the fifth time-space view is dense time-space view of cracked fractal generated from chaos-fractal theory.

第一时空观是通过对勾股定理的描述来说明影响人们思维方式的平直时空观；第二时空观是牛顿的绝对时空理论，是时空分割的立体三维时空观；第三时空观是爱因斯坦的相对论理论所带来的弯曲时空观；第四时空观是具有方向不可逆的熵时空观；第五时空观是混沌与分形理论所带来的破碎分形的稠时空观。

The improvement of the electroosmotic pump properties and the effects of the bi directional electrostacking system on the pre concentration factor were investigated.

研究了电渗泵性能的改进以及双向电堆积系统各种参数对富集倍数的影响。

And for the stress in the directional direction, which is imposed on the lathe-bed, the bending plane is an epiplastron, therefore, the batten wall pore should be designed in the epiplastron.

而当孔的位置是位于弯曲中性轴附近的时候，其对弯曲刚度的影响比较小，而当其远离中性轴即靠近边缘的时候，对弯曲刚度的影响就越大，所以应该将板壁孔布置在弯曲中性轴附近，这样可以减少孔对床身刚度的影响。

And for the stress in the directional direction, which is imposed on the lathe-bed, the bending plane is an epiplastron, therefore, the batten wall pore should be designed in the epiplastron.

而当孔的位置是位於弯曲中性轴附近的时候，其对弯曲刚度的影响比较小，而当其远离中性轴即靠近边缘的时候，对弯曲刚度的影响就越大，所以应该将板壁孔布置在弯曲中性轴附近，这样可以减少孔对床身刚度的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。