负

According to the principle of profit maximization and based on a discrete demand function which can be represented as a negative binomial distribution,the optimal pricing model for the perishable products is established.

基于一种负二项分布的离散需求函数，并在利润最大化原则下，建立了时效商品最优定价模型。

In this paper, for the number of indemnity taking negative binomial distribution and Possion distribution, we discuss some probability problems in students' safety insurance by the normal distribution of probability theory.

本文主要对理赔人数服从负二项分布和泊松分布，运用概率论中的正态分布讨论学生平安保险业务中的概率问题，如保险公司的赔钱或亏本问题、赔钱的最小值问题、保险公司的获利率和赔偿率与投保人数的关系问题等。

Near these peaks,the strengths of bilinear and biquadratic couplings havenegative temperature coefficients.

ii在这些共振峰附近，层间耦合强度具有负温度系数，且四次项耦合的温度特性远大于双线性耦合。

Applyingthe sufficient and necessary condition of biquadratic Bézier patch being non-negative,a method is presented to see whether two points are the closest points between twobiquadratic NURBS surfaces when the two points are respectively on the two surfaces. Based on the method, the surface split algorithm is improved while the surfaces arebiquadratic NURBS surfaces.

本文利用双二次 Bézier 曲面为非负的充要条件，提出了分别位于两张双二次 NURBS 曲面上的点是否为这两张曲面间距离最近的点的判别方法，并由此在双二次 NURBS 曲面的场合对计算最短距离的曲面分割法作了改进。

I want a wife who assumes the complete responsibility for birth control, because I do not want more children.

我希望有一个能负起计划生育全部责任的妻子，因为我不想要更多的孩子了。

The results indicate that: the cavity radius becomes stable at approximately 6000μs;the blasting pressure waves mainly are transmitted horizontally;the peak pressure has a negative logarithm relationship with distance perpendicular to the charging bisector;and the valid influence area r.

应用ANSYS/LS-DYNA有限元程序对条形装药黄土地基中爆炸过程进行了三维数值模拟，发现在6000μs爆炸空腔已基本稳定，条形装药爆炸产生的压力波以水平方向传播为主，装药中垂线方向爆炸产生的峰值压力与离中垂线距离呈负对数关系，土的有效影响范围半径大约为爆炸后形成的空腔半径的4倍。

And when the numbers of rational and irrational investors are almost equal, the effect of volatility on expected returns is weak.4. having extended a Bivariate Mixture Distribution model.

研究结果显示，在中国股市中，1997年之前，相同强度的冲击，收益为正的冲击与交易量放量的冲击对波动的冲击分别大于收益为负的冲击和交易量缩量的冲击；而1997年后情况则相反。

Conventionally, a negative dependence structure is not allowed in bivariate poisson models, and it restricts the univariate marginal distributions has to be the same family as the bivariate joint distribution, On the contrary, copulas allow negative dependence structure and marginal distributions and bivariate distributions of different families .

相较之下Copula允许有负相关，且Copula是一个能将双变量的联合分配函数与各自的边际分配连接在一起的函数。

Our major finding is: enterprises" psychological health should bepaid attention, to. All dimensions of entrepreneurs" satisfaction are significantly andnegatively correlated with anxiety and blahs.

本文的主要发现是，企业家的心理健康问题不容忽视，企业家满意度各个维度与焦虑和抑郁因子均存在着极其显著的负相关。

Mr. Obama told CBS televition television he takes blam the blame for the bagou bungled Daschle nomination.

奥巴马先生告诉CBS电视台他对达舒尔的错误任命负全部责任。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。