• Moreover, the profit of contrarian strategies is significantly improved when the mean-standard deviation ratio optimization allocation is used.

    均值-标准差比率优化配置可以显著地提高反向策略赢利

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  • Comparing the ratio of standard deviation to the average for these two distributions shows that they are similar.

    标准差两次平均值比较,我们就能发现他们相像,(因为我们知道重力加速度是个常数)。

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  • According as compare of voltage deviation and its variable ratio, optimal control of voltage and current is realized with querying fuzzy control sheet and adjusting adverse variable pulse width.

    比较电压偏差及其变化率查询模糊控制调节逆变宽,实现电压电流理想控制。

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  • The comparison result of computation value and measure value shows that their deviation is within 3% for low load ratio, and has increasing tendency for high load ratio, but it is within 5%.

    对于较小负荷变化率压力计算测量偏差小于3%,而较大的负荷变化率时,偏差增大趋势误差小于5%。

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  • One method was getting the maximum and the minimum of the structural performance function by optimization, and then calculating the ratio of mean-value to deviation of the performance function.

    一种方法优化得到结构功能函数最大最小值,计算功能函数均值和离差比值

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  • Sludge settlement ratio is one of the main analysis items. The traditional detection of sludge settlement ratio is operated manually, which may make too much deviation.

    污泥沉降污水处理过程中的主要分析项目之一传统污泥沉降比的测量是人工操作,误差较大。

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  • Cpm is an overall capability index defined as the ratio of the specification spread (USL - LSL) to the square root of the mean squared deviation from the target.

    Cpm一个总体能力指数定义了均值偏离目标值均方差的平方根规范宽度之间的比值

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  • For plastic deformation theory, it is assumed that the plastic strain tensor is proportional to the total strain deviation tensor and the ratio is a sealer 'function of the effective total strain.

    对于形变理论假定塑性应变量与应变量张量成比例比例因子有效应变标量函数

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  • The compression work or the total pressure ratio of a compressor is determined through the use of cascade element performance data concerning deviation Angle.

    压气机的增压其基落后确定。

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  • The quality model whose hit ratio of 5% deviation reach 0.508 is established by applying the technology of basic artificial neural network.

    普通神经网络建立起工艺参数预测力学性能质量模型,模型预测结果5%命中率0.508。

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  • The standard deviation and concentration ratio of local evaluation was used to identify and control collusion attack.

    采用基于局部评价标准差、局部评价集中度方法识别抑制共谋攻击;

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  • The standard deviation and concentration ratio of local evaluation was used to identify and control collusion attack.

    采用基于局部评价标准差、局部评价集中度方法识别抑制共谋攻击;

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