查询词典 gradient post

Based on a Hopfield neural network mode for combinational circuit test generation, a test generation algorithm with global searching ability is proposed. This algorithm is the combination of chaotic searching with gradient algorithm. By means of the inherent stochastic and ergodic property of chaotic searching, the problem of being trapped in local minimum of gradient algorithm can be solved.

基于组合电路测试生成的离散Hopfield神经网络模型，将混沌搜索与Hopfield网络的梯度算法相结合，利用混沌搜索的内随机性及遍历性来克服梯度算法易于陷于局部极小的缺点，形成一种具有全局搜索能力的测试生成有效算法。

Relative positive temperature-gradient applicable for China is discussed, it proves that positive temperature-gradient can be expressed as exponential curve.

研究了我国公路桥梁混凝土箱梁的正温度梯度，证明其可以用指数函数来表达，并提出了本桥混凝土箱梁的正温度梯度指数函数表达式。

The expression of exponential curve is brought out to describe positive temperature-gradient of this bridge in this dissertation. Moreover, the relation of different factors to positive temperature-gradient is determined quantitatively.

根据计算研究结果，定量地确定了各影响因素与正温度梯度曲线的关系，证明了太阳辐射强度和日气温变化的幅值是影响混凝土箱梁正温度梯度的重要因素。

METHODS: HPMSCs were isolated from placenta of fetation human by density gradient centrifuge. Following bone marrow heparin anticoagulation, human BMSCs were isolated, purified and passaged by density gradient centrifuge.

采用密度梯度离心法从胎盘中分离、纯化和传代培养人胎盘源性间充质干细胞；骨髓肝素抗凝后，采用密度梯度离心法分离、纯化和传代培养人骨髓基质干细胞。

Bone marrow was obtained from healthy adult donors. METHODS: HPMSCs were isolated from placenta of fetation human by density gradient centrifuge. Following bone marrow heparin anticoagulation, human BMSCs were isolated, purified and passaged by density gradient centrifuge.

采用密度梯度离心法从胎盘中分离、纯化和传代培养人胎盘源性间充质干细胞；骨髓肝素抗凝后，采用密度梯度离心法分离、纯化和传代培养人骨髓基质干细胞。

The whole inverse problem may be viewed as a two-stage optimal procedure, and the optimal algorithm based on gradient, such as BFGS algorithm, is adopted as the gradient of the objective functions which may be derived by using Frechet differential.

由于两次优化的目标函数的导数都是可求得的，因此采用基于梯度的优化算法，如Broyden-Fletcher-Goldfard-Shanno变尺度算法。

Produced the gradient wind equation and showed examples of gradient wind (and its difference from the geostrophic wind) in 500mb height maps.

推导出梯度风方程并在500毫八高度地图中举出梯度风的例子（以及它与地转风的不同之处）。

Intensity of solar radiation and height of haunch were found to be the main factors influencing the temperature gradient in box girder during cantilever construction, and function expression of the main factors with temperature gradient was gained.

从而验证了影响施工期间箱梁温度梯度的主要因素是太阳辐射强度和箱梁梗腋高度，定量确定了其与温度梯度之间的关系。

First, in order to achieve a performance independent of lighting conditions, the image is transformed into a Gradient Map. And then, Hausdorff distance measure is introduced to calculate the dissimilarity between two Gradient Maps.

首先，为了克服光照变化的影响，人脸图像被转换为梯度图像，然后，引入 Hausdorff 距离度量用于计算梯度图像之间的距离。

The effect of reactive aggregate gradient distribution in cement-based functionally gradient materials on its mechanical property is compared with that of homogeneous distribution.

通过活性集料在混凝土中的梯度分布和均匀分布，研究对比了活性集料梯度分布对水泥基材料力学性能的影响。

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。