查询词典 gradient

Keywords Closed convex cone;gradient projection method;Least-squares solution;Inverse matrix problem;Inverse eigenvalue problem;Matrix completion problem;Optimal approximation

Article From 湖南大学；应用数学博士论文 2005年度闭凸锥；投影梯度法；最小二乘解；矩阵反问题；矩阵逆特征值问题；矩阵完全化；最佳逼近

In this paper, we give a new class of adaptive nonmonotone spectral projected gradient technique for convex constrained optimization.

该文给出了求解凸约束优化的一类新的自适应非单调谱投影梯度法，主要思想是通过引入具有自适应性的权重参数，使算法在迭代过程中能自动调节非单调策略。

In contrast to max-T norm FAM bad to eliminate random noise, a convexly combined FAM by max-Yager product and min-Yager sum is more generalization. A gradient descent learning algorithm incorporating analytical solutions and numerical solutions is presented.

针对二层的FAM抗随机噪声的性能差的问题，提出一种更通用的FAM网络结构—最大-Yager积与最小-Yager和的凸组合模糊联想记忆网络，并给出其结合数值解和解析解的梯度下降学习算法。

BGHS;Base of Gas Hydrate Stability, we attached 5 miniature temperature probes to the outside walls of a sediment corer to measure the temperature and thermal gradient of sub-seafloor when taking a core sample.

为了能更准确的求得天然气水合物稳定生成的底部，即海床的地温梯度与天然气水合物稳定曲线的交点。我们将5根小型温度探针系绑於岩心采样器之外管壁上，在岩心采样时同时量取海床底下之温度。

It is a slow evolvement under quasi-balance of inertial force, Coriolis force and pressure gradient force.

显然，这种准平衡态是惯性力、柯氏力和气压梯度力三者之间的平衡。

Then the thermodynamic and the dynamic characteristics are further discussed, which are the inversion layer depth of the water temperature, the locations of the minima of the vertical temperature distribution and the temperature vertical gradient in the water column, as well as the baroclinity and the effect of Coriolis deflection force.

讨论了其北向扩展的热力学和动力学特征。这些特征涉及到逆温层的厚度、垂向温度和温度梯度最小值的存在，以及陆架水北向运动的斜压性和科氏力的作用

Near the center, the pressure gradient force (from the pressure in the center of the cyclone compared to the pressure outside the cyclone) and the Coriolis force must be in an approximate balance, or the cyclone would collapse on itself as a result of the difference in pressure.

中心附近的气压梯度力（从压力中的中心气旋的压力相比，外气旋）和科氏力，必须在一个大致平衡，或气旋将会崩溃对本身所造成的差异在压力。

Using the Gradient tool with the "floor_shadow" layer selected, click at the bottom of the layout and Shift-drag to about three-quarters of the way up to the bottom of the corkboard.

使用带有"floor_shadow"层选择，在布局和转移底部单击渐变工具的拖拽约四分之三的一路到 corkboard 底部宿舍。

We mainly investigate cyclic correlator and conjugate gradient algorithm are investigated mainly and applied in joint detection.

主要研究了圆周相关器法和共轭梯度算法，并将它们用于联合检测。

He proved that the left ward turning of Yangtze river diluted water is mainly resulted from the interaction between the bottom declining and the lag of the transversal pressure gradient, made the numerical simulation and preliminary study on the thermohaline staircase structure formation mechanism, improved American Academician Wunsch's inverse method of ocean circulation, jointed the discover of " Mindanao Under Current", which is the first ocean current found and named by Chinese scientists and widely accepted over the world, simulated the horizontal and vertical carbon fluxes in East China Sea by a simple ecosystem model, estimated the photosynthesis efficiency less than 8% in Jiaozhou Bay, applied statistical downscaling technology to Chinese coast and Japanese islands realizing the simulation and forecast of sea level low frequency variations, pointed out that the quasi-periodicity of El Nino events should be resulted from the interaction between the 3~4 year oscillation in tropical Pacific and decadal oscillation in the northern Pacific of middle latitudes of the air-sea coupled climate system and at decadal time scale the precipitation influence on sea level variation along Chinese coast and Japanese islands becomes more important, which is closely related to the decadal oscillation of air-sea coupled climate system, therefore precipitation most likely play a major role for the decadal oscillation formation;; proposed Extended Associate Pattern Analysis to analyse combined observed datasets of sea surface temperature and sea level pressure or geopotential hight at 1000 hPa (GH1000) over the Pacific and related seas.

论证了长江冲淡水向左转向主要由于底形下倾与横向压力梯度滞后相互作用的结果。对温盐阶梯结构的形成过程及物理机制进行了数值模拟与初步探讨。改进了美国科学院院士Wunsch的大洋环流反演法。与胡敦欣院士共同发现了"棉兰老潜流"，这是第一支由中国科学家发现、命名并得到普遍承认的洋流。借助较为简单的生态模式数值模拟了东海的水平与垂直碳通量；胶州湾浮游植物的屏蔽效应可以使底层海水温度在升温季节降低2度，由此推算出其光合作用的效率应小于8%；浮游植物春季水华的生物过程实际上强化了海水层化的物理过程。将统计学降尺度技术应用于日本列岛和我国沿海，实现了海平面长周期变化的模拟与预报。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。