查询词典 coefficients

Total 26 features about the textures and the geometry of the tumor images, including the autocorrelation coefficients, the mean square deviation coefficients, and the compact ratios, were extracted.

该系统提取了乳腺肿瘤图像归一化自相关系数、均方差系数、紧凑度等共26个纹理和几何特征。

When compared with conventional resistors, carbon-film high megohm resistors are noisy, unstable, have high temperature coefficients, display high voltage coefficients, and are very fragile.

与普通电阻器相比，碳膜高兆欧电阻器噪声大、不稳定、温度系数高、电压系数大、并且非常脆。

Diffusion coefficients for metol and p-benzenediol were 2.1×10 cm^2/s and 2.7×10^6 cm^2/s, respectively. The electrocatalysis mechanism has been studied. ATR-FTIR was used for the characterization of the ME/Au SAMs. The oxidation currents were linear in the range of 1.0×10^(-7)~1.0×10^(-4)mol/L for metol and 6.0×10^(-6)~6.0×10^(-4)mol/L for p-benzenediol, with the correlation coefficients of 0. 9992 and 0.9996 by differential pulse voltammetry, and detection limit 2.0×10^(-8)mol/L and 1.2×10^(-6) mol/L for metol and p-benzenediol, respectively.

采用水平衰减全反射－傅立叶变换红外光谱技术对ME/Au SAMs进行了表征，示差脉冲伏安法同时测定米吐尔和对苯二酚，不产生干扰，其氧化峰电流与相应物质的浓度分别在1.0×10^(-7)~1.0×10^(-4)mol/L和6.0×10^(-6)~6.0×10^(-4)mol/L范围内呈良好的线性关系，相关系数分别为0.9992和0.9996，检测限分别为2.0×10^(-8)和1.2×10^(-6)mol/L。

The coefficients between the sizeclasses and other quantification methods are found to vary with the particle size of the microfossil charcoal. The 202 touch pointcounts method is considered to be a better method for quantifying microfossil charcoal as it has high coefficients with other methods,smaller error and costs less counting time.

两种点接触法的微炭屑统计结果的相关系数高达0.93，反映了这两种方法所得微炭屑统计结果具有几乎相同的变化趋势。202刻点接触法由于与其他统计法的相关性都比较高，统计视域多且鉴定统计速度快，是进行微炭屑统计的最佳方法。

At each fixed solvent composition,the mean activity coefficients of KI decrease at first and then increase with KI molality increases.At each fixed KI molality,the activity coefficients decrease with an increase of methanol in solvent mixtures.

目前文献报道较多的是单一电解质在混合溶剂中活度系数的测定[2-5]以及混合电解质体系活度系数的测定[6-9]，但KI在甲醇-水混合溶剂中的活度系数测定尚未见报道。

The mean activity coefficients of Li_2SO_4 and Li_2B_4O_7 for Li_2SO_4- Li_2B_4O_7-H_2O system at 298.15K and for Li2SO4-H2O and U2B4O7-H2O at 273.15K respectively were calculated using Pitzer model and the results reveal the rules of the mean activity coefficients of U2SO4 and U2B4O7 in the mixing solutions changing with the ion strengths and the molality fractions.

本文以化学计量形式计算获得的Pitzer离子相互作用参数，计算了273.15K下Li_2SO_4、Li_2B_4O_7在纯盐体系和298.15K下Li_2SO_4、Li_2B_4O_7在Li_2SO_4-Li_2B_4O_7-H_2O体系中的平均活度系数，揭示了Li_2SO_4、Li_2B_4O_7的平均活度系数随离子强度及不同yb值的变化规律。

Are also given by constructing Lyapunov function. Finally, by applying the energy methods, Sobolev embedding theorems and bootstrap arguments, the global existence of nonnegative classical solutions to equations with homogeneous Neumann boundary value condition is proved when the space dimension is at most 5. Under certain conditions for the coefficients of the reaction functions, the convergence of the solutions is established for the system with large diffusion coefficients by constructing Lyapunov function.

的正平衡点全局渐近稳定的充分条件；最后，当空间维数不超过5时，应用能量估计、Sobolev嵌入定理和bootstrap技巧证明在齐次Neumann边值条件下非负古典解的整体存在性，并通过构造Lyapunov函数给出当反应函数的系数满足一定条件、扩散系数较大时该模型解的收敛性。

Based on the traits of dyadic wavelet decomposition of signal and that of the distribution of wavelet image coefficients, PLVQ and ZR are conjoined by making use of D\-4 lattice. Firstly, Pyramidal lattice vector quantization is adopted to quantize wavelet image coefficients. Nonzero lattice vectors and zero lattice vectors are formed. Secondly, nonzero lattice vectors are dealt with by adopting complex entropy coding. Finally, in order to fix on the position of nonzero lattice vector effectively, that is, to deal with zero lattice vectors effectively, the concept of significant map is introduced into. The significant map is scanned two times from down to up and from up to down.

根据信号的二进小波分解特点和小波图象系数的分布特点，利用D\-4格将PLVQ和零树结合起来，提出了一种基于零树和金字塔格型矢量量化的小波图象编码方法，该方法首先采用金字塔格型矢量方法来量化小波图象系数，以得到非零格点和零格点；然后采用复合熵编码来处理非零格点；最后为了有效确定非零格点的位置，也就是为了有效地处理零格点，又引进了重要图的概念。

Tansformed the real part and imaginary part of interferogram to stationary wavelet domain, analyzed the PDF of signal and noise wavelet coefficients using Pearson distribution system, then evaluated the wavelet coefficients of signal in stationary wavelet domain by Maximum A Posterior criteria to reconstruct the interferogram.

2将干涉图的实部和虚部分解到静态小波域，用Pearson分布系作近似，分析了信号和噪声小波系数的概率密度函数，在静态小波域用MAP准则估计信号的小波系数用于干涉图的重建。

For the analysis of both static and dynamic characteristics, the additional moments, axial/radial coupled stiffness coefficients and the radial/radial coupled stiffness coefficients are taken into account Based on it, the influences of the bearing angle, the ratio of width to diameter, and the ration of magnetic polar angle on the static and dynamic characteristics conical magnetic bearing are analyzed, and the corresponding numerical results are presented.

在圆锥电磁轴承基础解的计算模型中，增加了轴承附加力矩、力矩刚度系数以及轴向/径向、径向/径向耦合刚度系数的计算。在此基础上，本文详细讨论了圆锥电磁轴承锥角、宽径比以及磁极角比对轴承静、动特性的影响，并给出了数值结果。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。