查询词典 falling gradient

Under anaerobic condition, bacteria could respire with diverse noxious substances as terminal electronic acceptor. Electrons were transferred in the electron transport chain from electron donor to electron acceptor and formed trans-member proton concentration gradient, and were furthermore conserved into energy for metabolism.

在厌氧条件下，细菌利用环境中多种有毒物质作为呼吸链末端电子受体进行厌氧呼吸，在有毒物质被还原甚至降解的同时实现电子在呼吸链上的传递，形成跨膜的质子浓度电势梯度，进而转化为其生长代谢所需的能量。

First, based on the analysis of the grid Reynold number, the necessity for adopting high order scheme is emphasized when there is the complex flows with strong separation and high parameters gradient regions. Then, according to the entropy increased condition, the third order ENN scheme is constructed. Meanwhile, a fast, effective, and simple implicit numerical method called hybrid flux splitting method is developed. After that, the one dimensional model problem with many extrema and Burgers equation are simulated. Through the comparisons with exact solutions, the accuracy and effectiveness of the ENN scheme are confirmed.

首先通过对网格雷诺数的分析，论证了在求解含分离及较大参数梯度的流动时，采用高阶格式的必要性，然后从熵增原理出发，提出了建立三阶ENN格式的准则，同时发展并建立了一种快速、有效的简单隐式算法"混合通量分裂法"，通过对一维模型问题及Burgers方程的数值试验，检验了三阶格式的计算精度。

The nonlinear term of hydraulic gradient is 40% and 50%, and the critical Reynolds number is 22~27 and 52~104 for two kinds of media respectively.

两种石英砂出现非达西流时，其非线性项占水力梯度的40%~50%，相应的临界雷诺数分别为22~27和52~104。

In general cases, the demixing matrix in ICA is not in the standard Euclideanspace but in the Riemannian space. Thus the tradition gradient direction is not the speedest direction.

一般情况下， ICA中的解混合矩阵所在的参数空间并非欧式空间，而是黎曼空间，因此，传统梯度所得到的方向并非最速方向。

The results of these experiments indicate the increasing trend of rill erosion quantity with slope gradient and flow discharge.

试验结果反映细沟侵蚀量基本随坡度和流量的增加而增加的趋势。

So it can be avoided that the computation accuracy is lowered and the calculation result is hard to be convergent for the odd state of transformation matrix.The computation accuracy of wavelet Ritz method and wavelet Galerkin method has been improved so the special'microscopic'property could be fully expressed. An effective method is offered also to solve the problem of high stress gradient and some other odd state problems in engineering.

从而避免了由于转换矩阵奇异而造成精度下降且计算结果不易收敛的问题，提升了小波Ritz法和小波Galerkin法的求解精度，使小波分析的"显微"特性得以充分发挥，并为应力大梯度问题和工程奇异问题的有效求解提供了强有力的计算手段。

The whole multi-Agent system runs based on the continuous communication among agents. The architecture of the cloverleaf is variable, the beeline, the round curve and the convolute curve is the basic elements for the plane curves,the longitudinal gradient reflects the change of the vertical section. We consider sufficiently these specific factors in building road Agent. The different parameters are set to describe the geometrical characteristic and traffic characteristic.

立交枢纽的线形多变，直线、圆曲线与缓和曲线为平面线形组成的三个基本要素，坡度反应纵断面的路线起伏，本文在建立路段智能体中充分考虑了这些立交枢纽的特有要素，为每个智能体设置了不同的几何特性及交通特性，并在决策单元中加入对车辆驶入、换道、超车、限速等的智能控制模型，使得车辆智能体能够在由路段智能体相互连接组成的立交枢纽上正常行驶。

In this paper,two nonlinear anisotropic diffusion filtering methods are presented and they are based on the multispectral anisotropic diffusion models proposed by Pope and Acton.We build a couple of new diffusion coefficients in partial derivative equation based on Tukey's biweight estimator error norm by recurring to the relationship between robust statistics and anisotropic diffusion incorporated with the nonlinear time-dependent cooling technique for gradient threshold.

在Pope和Acton提出的两个多光谱图像各向异性扩散滤波模型的基础上，通过各向异性扩散和稳健统计学的联系，建立了基于B iwe ight Estim ator误差模型的扩散系数，同时利用非线性退化技术对梯度阈值的改进，提出了两个基于各向异性扩散方程的非线性滤波方法。

In this article, the effect on the surface topography of the same material was analyzed by different processing methods, the value of surface parameter arithmetic mean R, root-mean-square roughness R and gradient root-mean-square value Z were used to appreciate the surface topography, and the data were processed with the software Matlab.

分析不同加工方法对同一种材料表面形貌的影响，采用表面形貌统计参数中的轮廓高度算术平均值R、轮廓高度均方根值R、坡度均方根值Z，对表面形貌进行评价，结果表明，准分子激光加工表面的R、R，和Z，值均比研磨加工表面小。

In this article, the effect on the surface topography of the same material was analyzed by different processing methods, the value of surface parameter arithmetic mean Ra, rootmean-square roughness Rq and gradient root-mean-square value Zq were used to appreciate the surface topography, and the data were processed with the software Matlab.

分析不同加工方法对同一种材料表面形貌的影响，采用表面形貌统计参数中的轮廓高度算术平均值Ra轮廓高度均方根值Rq、坡度均方根值乙对表面形貌进行评价。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼