变量

A theoretical test method which can be used to evaluate whether a pseudorandom number sequence satisfies requested randomness is suggested.

譬如：原随机变量是U（0，1）的，则变换后的随机变量也是U（0，1）的，但是用一个非整数去乘却没有这样的统计性质。

In the view point of psychophysics ,color structure was set up based on psychophysical corresponding relation among color characteristic variables, and the interaction of color characteristic variables was also analyzed according to color structure.

从心理物理学角度出发，结合颜色特性变量的心理物理对应关系，建构了颜色的三维立体结构，并在此基础上对诸特性变量之间的交互作用进行了分

The control problem is transformed to constrained optimization problem and is solved using sequential quadratic programming algorithm.

考虑了调节变量和被控变量的约束情况，推导了采用序贯二次规划算法的滚动优化方法。

The isothermal solubility diagram of the quinary system NaVO_3 + KVO_3 + NaH_2PO_4 + KH_2PO_4 +(NH_2)_2CO + H_2O consists of four invariant points, six univariant cuives, and five regions of crystallization corresponding to NaVO_3, KVO_3, KH_2PO_4, NaH_2PO_4 and (NH_2)_2CO.

五元体系NaVO_3+KVO_3+NaH_2PO_4+KH_2PO_4+(NH_2)_2CO+H_2O298K下的等温相图由五个相区、六条单变量线和四个零变量点组成。

The questionnaire method and the interview menthod were used to gain the tourist data, the quota sampling method was used in sampling survey, the principal component analysis method was used to measure the various variables, the statistical methods such as linear regression analysis, multivariate linear regression analysis, single factor variance analysis and logistic regression analysis were used to analyzes the relationship between various variables.

具体来说，在获取游客数据时采用了问卷调查法和访谈法，在抽样调查时采用了配额抽样方法；对各变量进行测度时使用了主成分分析法；在分析各变量之间相互关系时采用一元线性回归分析、多元线性回归分析、单因素方差分析及Logistic回归分析等统计方法。

Meanwhile, the index futures hedge theory has also get a further development, which evolves from traditional hedge theory, the selectivity hedge theory and modern hedge theories. After analyzing the merits and shortcomings of the three theories, the paper mainly studies four minimum square hedge theory models, which are The traditional static OLS model, VECM model, one variable GARCH(1, 1) model and one variable GJR-GARCH(1, 1, 1) model. Established on September 8th in 2006, China Financial Futures Exchange initiated a new era of our country finance ramification-- index futures, opening a door for the China futures industry.

而股指期货的套期保值理论也随之得到长足发展，历经传统套期保值理论、选择性套期保值理论和现代套期保值理论，本文在分析三大理论优缺点的同时，着重研究现代套期保值理论即最小方差避险理论的四种模型：传统静态OLS模型、VECM模型、单变量GARCH(1，1)模型、单变量GJR—GARCH(1，1，1)模型。2006年9月8日，中国金融期货交易所的成立，掀开了我国金融衍生品种股指期货的新纪元，迎来了中国期货行业发展的机遇期。

A standard expected value model for multi-objective multi-stage transmission planning is presented to realize the transmission optimal planning with the control of line overloading risks. In this model, a constraint of overloading risks is built with expected value and standard deviation of random line active power and two objectives are given as expected value of the average power loss and discount value of the investment cost. By modeling uncertain informations with probability theory, the probabilistic DC power flow is adopted for the correlated calculations among random variables in the planning model.4 A novel multi-objective transmission planning approach that considers transmission investment profit is proposed. Requests for transmission investment profit and social welfare are involved in the proposed planning approach.

以方案总投资费用贴现值和平均网损期望值为目标函数，建立多目标多阶段输电网规划的期望值模型，以线路有功潮流过负荷随机变量的期望值和标准差构建过负荷风险约束，考虑了风险发生概率和严重程度两方面的特征，通过对不确定性信息的概率建模，利用概率直流潮流进行各随机变量的相关计算，实现了控制过负荷风险条件下的输电网优化规划。4提出考虑输电投资收益的多目标输电网规划方法，综合考虑市场参与者对输电投资收益和社会总福利的要求加热管及其对输电网规划的影响。

Fuzzy variable ; Random variable ; Fuzzy safety event ; Membership function ; Fuzzy reliability

模糊变量；随机变量；模糊安全事件；隶属函数；模糊可靠度

That is why recall that and are random variables that depend on the sequence of independent random variables with equal distributions.

这就是为什么记得，和是随机变量，取决于平等分布的独立随机变量序列。

Thus is the range of random variable X and is the range of random variable Y and so forth.

因而， 是随机变量X的范围和是随机变量Y的范围等等。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。