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After discussing the non-linear characteristic of the investment risk series, the thesis investigates several forecasting methods for non-linear risk series including AR model, ARCH model and neural network model.

本文在探讨了证券投资风险时间序列非线性特征的基础上，研究了包括AR模型，ARCH方差补偿型预测模型和神经网络预测模型在内的各种非线性风险预测方法以及组合预测方法。

The modern west non-rationalism attempts liberate the individual perceptual existence from the universal rational fetter, but they exaggerated the non- rational function, take the abstract speculation method just as rationalism, separated from person's social practice, finally pushed person's freedom to absolute individual free.

现代西方非理性主义者试图把个体感性存在从普遍理性束缚下解放出来，但他们夸大了非理性的作用，与理性主义者一样以抽象思辨为特点，脱离了人的社会实践，把自由推向了绝对的个体自由。

Furthermore, the natural resource and environment factors have more obvious characteristic of permanently cumulative non-linearity and non- reversibility.

总之，对于绿色国民经济账户的核算，尽管目前还没有一个统一的衡量标准，但是学术探讨的实践指向及其价值还是值得肯定的。

Means of non -singular determinant is not equal to 0, the matrix must be non - degenerate square matrix is full rank is, the matrix is not necessarily ...

非奇异的意思是行列式不等于0，矩阵一定是方阵非退化是矩阵是满秩的，矩阵不一定是。。。

Matrix and matrix non -singular non - degenerate mean?

矩阵非奇异和矩阵非退化是什么意思？

A semi－empirical tire model of non－steady state cornering characteristics is presented,based on a theoretical non steady state tire model.

在轮胎非稳态转向特性理论模型的基础上，本文提出了一种半经验模型。

Flat plate steady mathematical model and non steady symmetric model are presented, the analytical solution of temperature of powder is derived on the basis of non steady symmetric model in spheroidal coordinates with the methods of mathematical transformation and principle of superposition .

对点火问题进行研究，给出了两种点火的数学模型；平板定常模型和球对称非定常模型。从火药颗粒的球对称非定常模型出发，利用叠加原理和数学变换导出了火药颗粒表面温度的分析解。该研究对深入研究点火理论和起始弹道学有一定的作

Give out the trigonometric function solutions of fourth order equations, as a example with rectilinearly accelerating the Kerr black hole, the event horizon of non sphere symmetric and non stationary black hole are studied.

给出了具有实用价值的四次方程的三角解正根公式，并以匀加速直线运动的Kerr黑洞为例，成功的研究了非球对称动态黑洞的"类视界面"。

On the basis of economic retional person hypothesis, tradecast non - zero hypothesis and information non - symmetry hypothsis, the author obsrves the problems in aquatic products quality and the cause from the angle of economy and puts forword corresponding policy suggestion.

本文在经济理性人假设、交易成本非零假设和信息非对称性假设的基础之上，从经济学的角度，审视了水产品质量问题及其原因，并提出了相应的政策建议。

The C-band magnetically insulated transmission line oscillator has teen simulated by the three dimensional PIC code in order to study the influence of non symmetry excitation mechanisms on its output modes. It is found that the non symmetry excitation mechanisms, such as random emitting of cathode electron anti the long rise tunic and low magnitude of input voltage, could product higher order modes and reduce output power.

为理解磁绝缘线振荡器实验中频频出现的模式竞争问题，利用3维全电磁粒子模拟程序对C波段MILO的实验模型进行研究，探索各种非对称激励机制对产生微波模式的影响，结果显示：阴极电子随机发射、电压的慢上升前沿、较低的电压等因素都可导致非对称高阶模式的产生，并使输出微波功率大大降低。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。