查询词典 gradients

This method is based on the Snell law of acoustic propagation in water. Different velocity gradients among linear layers in water are utilized to draw the sound ray chart, and a mathematical model of the geometric operational range is built. Furthermore, the geometric homing range is predicted with sound ray density, a prediction system of geometric operational range for acoustic homing torpedo is designed and the function of the system is realized through a system software. The sea trial demonstrates the prediction validity of the system.

该方法基于声波在水中传播的Snell定律，利用水中各线性分层间不同的声速梯度，绘制声线图，建立了几何自导作用距离的数学模型，并通过声线密度对几何作用距离进行预报，设计了声自导鱼雷几何作用距离预报系统，并通过系统软件实现了其功能，经测试，该系统在海上试验中取得了良好效果。

A kind of on-line gradient learning algorithms based on signal flow graphs isproposed for neural networks on-line training. The signal flow graph and adjoint one of aneural network are used to compute the its gradients.

对于动态神经网络在线学习而言，该算法避免了传统梯度计算中复杂的链式求导过程，利用神经网络的信号流图及其线性的伴随流图，可以直接计算任何变量的梯度信息。

With the increment of the distances to field source plants, the individual ecological field gradients of Alsophila spinulosa increased gradually at first to the maximal values, then decreased gradually and converged at zero at last. The varying form fitted Rayleigh distribution.

随着与场源距离的增加，桫椤个体生态场梯度先逐渐升高，达到最大值后又逐渐降低并收敛于零，其变化形式符合Rayleigh分布。

Methods］The total proteins of untreated and ethambutol treated mc2155 cells were separated by ampholyte pH gradients based two-dimensional gel electrophoresis (2-DE). The differential expression proteins were analyzed by using image analysis software.

方法］采用载体两性电解质pH梯度双向凝胶电泳技术分离乙胺丁醇处理前后耻垢分枝杆菌mc2155细胞的总蛋白质，用PDQuest 7.3.1图像分析软件比较分析，以识别差异表达的蛋白质。

The computation formula of the rotation angle value is constructed by the gradients of fitness function.

基于适应度函数的梯度信息，构造了旋转角大小的计算公式。

So, the strain gradients and consequently the related gradients of mechanical properties are closely linked to hydric heterogeneities generated by non-uniform drying in the layer of material.

因此，应变梯度，因此有关梯度的力学性能有着密切的联系氢气所产生的非均质性非均匀干燥在一层的材料。

Hydric and hydration gradients are measured by using the ''slice test'' and strain gradients are measured at various positions in the material layer using embedded strain gauges.

氢气和水化梯度是衡量使用''''切片检验和应变梯度测量在不同的岗位材料层使用嵌入式应变计。

In order to make reasonable and effective use of slag in concrete, effects of slag admixing quantity on the slag utilization in the system, quantity and gradients of hydrated products are analyzed on the base of measuring the reaction extents of slag in slag-cement system with different admixing quantities and amounts of Ca2 and non-evaporable water. It is believed that there exists an appropriate admixture scope that enables the slag to be utilized efficiently in the system with reasonable amount and gradients of hydrated products and ensures the material has a good performance.

为使矿渣在混凝土中得到合理有效利用，在测定不同矿渣掺量的矿渣-水泥体系中矿渣反应程度、Ca2与非蒸发水数量的基础上，分析矿渣掺量对体系中矿渣的利用效率、水化产物的数量与构成的影响，认为存在一个合适的掺量范围，使体系中矿渣具有较高的利用效率而体系水化产物数量及构成合理，保证材料具有良好的性能。

Displacements, strains, the net stresses for the solid phase; pressures, pressure gradients, Darcy velocities for pore water and pore air phases; temperature, temperature gradients, the heat flux of the three phase mixture are interpolated as independent variables.

固相位移、应变和净应力；孔隙水和气的压力、压力空间梯度和Darcy速度；多相混合介质的温度、温度空间梯度和热流量在单元内均为独立变量分别插值。

The results showed that 9 natural vegetation types were distributed in 6 gradients. Except gradientⅠ, the dominant vegetation types along other gradients were all monsoon evergreen broadleaved forest. Gradient had greater effects on the distribution of seasonal rainforest and temperate coniferous forest, had some effects on the distribution of mountain rainforest, deciduous monsoon threat and river valley savanna forest, had smaller effects on monsoon evergreen broadleaved forest had no effect on warm-hot savanna forest and tropical bamboo forest.

结果表明：9个自然植被类型在6个坡度级均有分布；6个坡度级中除Ⅰ坡度级优势类型是水域外其他坡度级的优势植被类型均是季风常绿阔叶林；坡度对季节雨林和暖温性针叶林的分布影响较大，对山地雨林、落叶季雨林和河谷稀树灌木草丛的分布有一定影响，对季风常绿阔叶林和暖热性稀树灌木草丛的分布影响较小，对暖热性针叶林和热性竹林的分布无影响。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。