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- TIMS uranium series method for coral dating and paleoenvironment research 热电离质谱铀系法测定珊瑚及对古环境研究
- Factors Considered in Mass Spectrometric Determination in Dating Using the Thermal Ionization Mass Spectrometry Uranium Series Method 热电离质谱铀系定年测定过程中需考虑的因素
- uranium series method 铀系法
- It proved that the airproof ability of standard sources prepared is fine for measuring the radioactivity of uranium series nuclide fully. 证明制备的镭标准源密封性也非常好，完全能满足测量铀系核素的要求。
- Radon and its daughters not only are the decay product of natural radioactive uranium series and thorium series, but also are one of natural radiation source. 氡及其子体是天然放射性系列中的铀系、钍系衰变产生的,是人类受天然辐射主要的来源之一。
- The nonlinear behavior of the power system can be analyzed using modal series method. 模态级数法是一种新的用于反映非线性系统动态特性的方法。
- By using differentiator series method,the formula of partial integration is obtained. 用微分算子级数法得到分部积分公式，使一类积分计算变得十分简单。
- Using time series method to establish ARIMA (11,1,0) model for some wind speed directly measured from wind farms’ certain station in China. 文章运用时间序列法对我国某风电场测风站实测风速建立时序ARIMA(11,1,0)模型，并进行风速预测。
- This dissertation obtains some satisfying results by making use oftime series method to predict sales volume of short silk and long silkabout Dacron in the Polyester Complex. 对聚脂厂涤纶短丝和涤纶长丝的销售量，用时间序列方法进 行了预测，得到了比较满意的结果。
- The first one is chosen using time series method, and the second is obtained from measurements using the autocovariance function of the stationary stochastic process. 二是应用平稳随机过程的自协方差函数从双差观测值中提取的正则化矩阵。
- General formulas of the amplitude of intermodulation products as a function of intermodulation orders in two-carrier case are derived by applying Fourier series method. 在已知传递函数的情况下,采用傅立叶级数法,推导了二载波情况下互调产物的幅度及其随阶数变化的一般表达式。
- thermal ionization mass spectrometry uranium series 热电离质谱铀系
- The next in order, it is well known that the formula of Taylor series method is simple and its stability is good, but its high level derivative is not easy to be gotten and so it is difficult in practice. 其次，众所周知Taylor级数法虽然公式简单且数值稳定性好，但是高阶导数的计算非常麻烦，难以实用。
- The extraction and backextraction optimum conditions on Te with N1923 were studied, and the composition of extractive was determined by saturated capacity method and equimolar series method. 研究了N1923萃碲及反萃碲的最佳条件,并运用饱和容量法及等摩尔系列法测定了萃合物的组成。
- The common multiple pole expanding method for retarded potential of electromagnetic field is corrected and replenished. Employing Taylor series method the exact result of the first three terms in multiple pole expansion is achieved. 对电磁场推迟势的常见多极展开方法进行了修正和补充，用泰勒级数法求出了多极展开前三项的精确结果
- URANIUM SERIES DATING OF "ORDOS MAN" AND "SJARA-OSSO-GOL CULTURE 用铀子系法测定河套人和萨拉乌苏文化的年代
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- By simulating the track irregularities with trigonometric series method,the train-bridge coupling vibration equations are established based on the combined modal of train formation and the bridge. 利用三角级数法模拟了轨道的不平顺,采用列车编组和桥梁组合的模型,建立了车桥耦合振动方程。
- In this paper, the nonlinear transverse deflection or buckling is analyzed for unsymmetrical composite laminates under loads in plane by means of the generalized Fourier series method. 本文利用广义富里叶级数法对非对称复合材料层板在面内载荷作用下的非线性横向变形或屈曲问题进行了分析。
- Hegger R, Kantz H, Schreiber T, et al. Practical implementation of nonlinear time series methods: The TISEAN package. 温权，张勇传，程时杰.;混沌时间序列预测技术
