径向的
- 与 径向的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
And the energy balance equation is applied to describe the temperature field axial orientated.
对流道的径向瞬态温度场分布进行差分求解,对流道轴向的温度分布运用能量平衡方程建立数学模型,并采用松弛迭代求解;最后,考虑流动和冷却过程的温度场分布,对流道径向和轴向温度场的计算结果进行了耦合分析,解决了长期以来只能依靠经验计算热流道温度场的局限。
-
In this paper we study the method of interpolation by radial basis functions in H~k(k ≥ 1) and give some error estimates. By means of such interpolation with a special kind of radial basis function, we construct a basis in H~k(k ≥ 1). Combined with the Galerkin method, this theory can be applied to solve boundary value problems for elliptic partial differential equations (such as the third boundary value problem for Poisson equation and the corresponding problem for the biharmonic equation), and some numerical experiments are also given.
本文从求解偏微分方程的角度出发,在被逼近函数u属于一般的Sobolev空间H~k(k≥1)的情形,引入了一种径向基函数插值方法,并建立了相应的误差估计;再利用这种插值性质,从一类特殊径向基函数出发构造Sobolev空间的一组基,针对Poisson方程第三类边值问题和重调和方程类似边值问题,为用无网格算法求解偏微分方程边值问题建立了相应的理论,并通过算例来验证了这一算法。
-
Boundary polynomial point interpolation mesh-free method and boundary radial point interpolation mesh-free method were presented, based on polynomial basis and radial basis respectively for transient eddy current analysis, and their interpolation shape functions satisfy the Kronecker delta function and the essential boundary conditions can be directly imposed on the boundary nodes. An example on analyzing transient eddy current of a square metal column was set to prove the validity of the proposed methods, and a comparison on accuracy between BPPIM and BRPIM was analyzed as well.
运用多项式点插值法和径向基点插值法构造形函数,推导了适合于工程电磁场瞬态涡流问题的多项式基点插值边界无单元方法和径向基点播值边界无单元方法,这两种方法的空间插值形函数满足Kronecker delta条件,从而强加边界条件可以直接施加在边界点上,以金属长方柱的瞬态涡流分析作为数值算例,证实了两种方法的正确性和有效性,并对两种基类的点插值法进行了精度分析和比较。
-
In order to enhance wear-resisting performance of the internal combustion engine piston ring,matrix microstructure and radial elastic force of the piston ring,the matching between piston ring and cylinder were analyzed.
为提高内燃机活塞环的耐磨性能,分析了活塞环的基体组织、径向弹力及活塞环与气缸套的匹配状况对其耐磨性的影响。试验表明活塞环的基体组织以细粒状珠光体或回火索氏体、石墨呈细小均匀分布为佳;活塞环的径向弹力大小应适宜,一般为
-
Secondly, contraposes the limitation of the traditional harmonic current detecting method based on neural network, presents the method that combines the neural network and auto adaptive harmonic current detecting method based on the principle of noise each other eliminating.As the characteristics that are small calculative quantity, fast converge, without local minimal point of Redial Basis Function, this dissertation forms a new harmonic current detecting method based on RBF.
其次,针对传统的谐波电流检测方法的缺陷,提出将神经网络与基于噪声抵消原理的自适应谐波检测相结合,利用径向基函数运算量小、收敛快、无局部极小值等优点,构造了一种基于径向基函数神经网络的谐波电流检测方法,仿真结果表明该检测方法具有很好的动态响应及畸变电流检测精度。
-
By range analysis of the orthogonal designing scheme, the sequence affecting pump head and efficiency of the four main factors were obtained, the number of short-blade, the deflection angle, the bias angle in peripheral direction, the radial inlet position and the number of short-blade, the radial inlet position, the bias angle in peripheral direction, and the deflection angle, meanwhile the best design scheme of short-blade was given.
通过对正交设计方案结果的极差分析,得出各因素水平对扬程和效率影响的主次顺序分别为短叶片数、偏转角、周向偏置度、径向进口的相对位置和短叶片数、径向进口的相对位置、周向偏置度、偏转角,从而得到超低比转速高速离心泵复合式叶轮短叶片的最佳设计方案。
-
First, in order to verify the correct of this retrieval month, by using the data of three-dimensional wind field, raininess field and temperature field that are output by MM5 numerical simulation, we climate the radial velocity field and echo intention field in the in-phase observation area of Dual-Doppler radar, then, on the base of the upwards retrieval theory and using the radial velocity field and echo intention field in the in-phase observation area of Dual-Doppler radar, we retrieve the atmospheric three-dimensional wind field.
首先,为检验此种反演方法的可靠性,我们使用MM5数值模式输出的三维风场、雨强场、温度场等数据,分别模拟生成两部雷达同步观测区的径向速度场和回波强度场,然后根据以上的反演理论利用模拟的双多普勒天气雷达观测到的径向速度场和回波强度场反演出大气三维风场。
-
A Multi-Species Cooperative PSO algorithm is developed using the ideas of species dividing in the bionomical world. The algorithm is shown to have guaranteed convergence to the global optimum. Furthermore, the training strategies of RBF network structures and weights based on the MCPSO aigorithm is proposed. Simulation results show that the algorithm is effective in such fields as chaotic time-sequence forecasting, system identification, speech signal processing and etc.
在分析基本微粒群算法和协同微粒群算法特点的基础上,借鉴生态学中的种群划分思想,设计出一种多种群协同进化微粒群算法,并分析了该算法的收敛性能;在分析径向基函数神经网络结构的基础上,提出了基于多种群协同进化微粒群算法的径向基函数神经网络结构和权值优化设计策略,并在混沌序列预测、系统辨识、语音信号处理等应用仿真实验中验证了算法的有效性。
-
Through the principal components analysis of 27softwoods,we found that the directionality of cell arrangements was accordant with theevolution order of Ginkgoaceae,Pinaceae,Taxodiaceae,Cupressaceae,the more evolutivewood species,the stronger directionality of cell arrangements along radial,but thedirectionality of cell arrangement along the radial of Larix spp.which was abrupt changedspecies was comparatively weak.
通过对27种针叶材的主成分分析,发现木材细胞排列方向性强弱基本符合银杏、松科、杉科、柏科的进化顺序,越是进化的树种木材径向排列的方向性就越强。另外,落叶松属等早晚材急变的木材径向排列比较弱。
-
By means of the novelly decoded manner and the well constructed fitting function, the global searching performance for the GA is developed so that optimized RBPNN approaches to the parsimonious structure;(4) A ROLS micro-genetic algorithm was built by integrating the micro-genetic algorithm with good convergence performance based on tiny class of group with the ROLS-SOA.
提出一种新的基于径向基概率神经网络的模式识别融合系统,即多分类器系统,避免了单一径向基概率神经网络分类器的分类局限性,减少了寻求单一分类单元结构最优化时的计算复杂度,通过使用D-S融合算法,大大提高了对复杂模式识别问题的分类精度。
- 推荐网络例句
-
On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
-
Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
-
You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?