中项

Given a finite training sample set, according to the proposal of establishing a Local Most Entropy probability density function to estimate the number of cluster a method for estimating 〓 is proposed, where a complicated method based on Maximum Likelihood Cross-Validation is replaced by Chebyshev inequality.

为改善BP算法的收敛速度慢、易陷入局部最小的问题，提出了带一类非线性特性动量项的变步长BP算法，构造了一个能自适应升降温的动量项非线性强度函数，在编程中又采用了有条件引入非线性特性动量项的措施，大大提高了搜索过程跳出局部极小、快速稳定收敛的能力。

The purposes of this study were:(1) to explore the relationship among students' cognitive and conation variables,(2) to explore the effect of cognitive/conation variables on students' learning performance, and (3) to group observations into clusters by cognitive/conation components.

本研究的目的如下：(1)了解四个认知成份变项与四个意动成份变项之关系。(2)探讨八个认知╱意动成份变项对国中学习表现的预测力。(3)探讨认知╱意动成份是否能将受试者区分成明显的集群。

In the PFD, both the differentials and non-differential terms in the differential equation are discretized, and the coefficients of the power series are determined by means of eliminating the truncation error of the corresponding modified scheme, then the high accurate difference scheme is obtained.

摄动有限差分方法在微分方程的差分近似中，离散微商项的同时，也离散非微商项，把非微商项摄动展开成网格步长△x的幂级数，并通过提高差分格式相应修正微分方程误差阶的方法求出摄动幂级数系数，从而获得高精度差分格式。

This can be done adding a penalty term into target function used in the standard BP algorithm, and the penalty term is related to the first derivative of the target function.

具体的做法是在标准BP算法中的目标函数项内增加一惩罚项来完成的，而此惩罚项与目标函数的一阶导数相关。

The laminar flamelet model in combination with joint probability density function transport equation of mixture fraction and turbulence frequency is used to simulate fluctuating behavior of radiative source term in turbulent jet diffusion flames of hydrogen.

采用κ-ε湍流模型、标量联合的概率密度函数输运方程和层流火焰面模型相结合，模拟氢气自由扩散火焰中辐射源项湍流脉动特征。给出了主燃区内辐射源项湍流脉动的频率图。辐射源项的样本点分布集中，大约95%以上的样本落在其系综的±3倍方差以内，频谱图为单峰

The second and third condition in the three conditions have the character of hypothetis judgments of formal logic .

三项条件中的第二项和第三项条件具有形式逻辑的假言判断性质。

Several other poster presentations reinforced the message that once-weekly epoetin was effective, although none of these others had a comparator dose. Two posters presented results from meta-analyses of epoetin alfa clinical trials. One was carried out by Pere Gascon, MD, PhD, and colleagues, from the University of Barcelona, in Spain, and involved 4296 patients with mixed tumor types, while the other, reported by Mario Dicato, MD, from the Luxembourg Medical Center, involved 2019 patients with breast cancer. Both concluded that 40,000-IU epoetin alfa is effective and well tolerated; it ameliorates the impact of chemotherapy on hemoglobin and improves quality of life, thus representing "good anemia management," the researchers concluded.

许多其他的壁报研究同样证实每周投予一次红血球生成素是有效的，虽然其他研究中未使用比较组；另两项比较红血球生成素阿法临床试验结果的综合分析，一项是由Pere Gascon医师与其来自西班牙巴塞隆纳大学的同事，收纳了4，296位各种肿瘤种类病患的研究；另一篇是来自Luxembourg医学中心Mario Dicato医师，收纳2，019位乳癌病患的研究，这两项研究的结论都是40，000单位的红血球生成素阿法同样有效、且耐受性佳；该疗法降低化学疗法对血红素的不良影响，且改善了生活品质，因此可以说为是「良好贫血处理」的标竿。

The worldwide attention is especially attracted after new 5.8mm crew served gun family and 12.7mm heavy machine gun have been equipped in the army stationed in HongKong for the first time in 1997 and 92 type pistol has been equipped in the army stationed in Macao.

在已完成的600多项科研项目中，240项获科研成果奖，107项获国家、省部级奖。新5.8mm班用枪族和12.7mm机枪97年装备驻港部队，99年装备驻澳部队。

The float solution can be solved by the same method of GPS. Due to the influence of the second part, the integer property is damaged, and the two parts are indistinguishable. So the integer part can't be solved directly from the double difference equation.

可以采用与GPS完全相同的方法求得模糊度的浮点解，但受第二项的影响，破坏了其整数特性，并且不能从浮点解中把这两项区分开来，因而不能由双差方程直接求得整周项。

So, this paper, based on mathematical expectation, brought up the concept of the positively correlated frequent itemsets, and improved the algorithm of mining frequent itemsets directly in FP-tree to mine positively correlated frequent itemsets. In this way, a solution to the above mentioned problems was got.

针对以上问题，基于数学期望，提出了正相关的频繁项集的概念，并改进了一种直接在FP-树中挖掘频繁项集的算法，挖掘出正相关的频繁项集，从而有效地解决以上问题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。