查询词典 calculus of finite differences

This study found:a indications of differences in the number of personal rebuttals posted in reply to direct challenges between more versus less open students(ES=+0.33);b significant differences in the number of rebuttals posted between males and females(ES=+0.66);c significant differences in number of personal rebuttals posted between the less versus more open students among the males(ES=+1.32),but not among the females(ES=-0.19);and dno difference in the types of responses posted in reply to challenges between more versus less open students.

研究发现：1思想开放的学生在讨论问题时在提出的反驳次数上会有明显差异；2性别不同的学生在提出反驳的次数上有显著差异；3思想开放程度不同的男生之间，提出反驳的次数有显著差异；而在女生中则没有这种差异。4思想开放程度不同的学生在面对挑战时作出的反应是一样的。

However, there is no such restriction on the transformational forms, such as the Dative Construction in English and the sentence marked by "ba" in Chinese. The differences are: Chinese DOC has a more wide-ranging scope; Some verbs used in the Chinese DOC sentences are inherently one or two-place, but verbs used in the English DOC is at least inherently two-place, can't be one-place; some verbs bearing the same meaning can construct a DOC sentence in Chinese but not in English, and vice versa; there are differences on the form, the position and the ellipsis of the double objects; there are differences on the passive form of the DOC in both languages.

其不同点有：汉语的双宾结构范围更广；汉语中有的动词可能是一价或二价，但英语中的动词起码是二价，不可能是一价；有些具有相同意思的动词在汉语中可以构成双宾结构，在英语中则不能；反之亦然；在英汉语中，间接宾语和直接宾语的构成、省略及位置上都存在差异；英汉语的双宾结构的被动式形式存在差异。

The major findings were as follows:(1) There were significant interactions between Feedback and Goal-setting in both students' mathematical performance and test anxiety;(2) No significant differences were found in mathematical performance and test anxiety between the student self-set goal condition and the teacher-assigned goal condition when feedback was presented;(3) There were significant differences in students' mathematical performace between correct-predicting students' and incorrect-predicting students, but no difference was found in students' test anxiety between the two groups of students;(4) High-estimating students and low estimating students showed significant differences in mathematical performance, but no difference in test anxiety.

在有回馈的情形下，学生自订目标与敎师指定目标间，其学生在数学作业表现或是在数学测试焦虑分数上均无显著差异存在。3。学生自订目标中，预测正确组与预测不正确组学生在数学作业表现上有差异存在，在数学测试焦虑分数上无差异存在。4。学生自订目标中，高估组与低估组学生在数学作业表现上有差异存在，在数学测试焦虑分数上无差异存在。

On the bases of investigating and grasping the materials about the AHPPEs, AHPPEs' developing situation is analyzed completely in this article on vertical direction of time order and horizontal direction of department, in the meantime, material buying process, capital's using rate, and product selling process are also analyzed completely. Pointing out because the differences of owning right among State-Operated Enterprises, Collectively Operated Enterprises and Privately Operated Enterprises, there are differences in the producing behavior and trade development.A. According to the theory of producer behavior, POEs is on the way from stageⅠto stage Ⅱ,economic interests increasing;COEs is on the end of stageⅡ,economic interests decreasing;SOEs on stage Ⅲ,economic interests is negatively increasing.Model analyzing method shows that scale economic doesn't exist in SOEs and COEs, but POEs is the reverse.B. Different owning right enterprises have great differences in the respect of capital scale,product making and selling processes, at last SOEs and COEs' economic interests is much less than that of POEs. Scale economic doesn't exist in SOEs and COEs, POEs have the potential of developing scale economic, furthermore, the new-coming horizontal in the horizontal structure have the good situation.

在跟踪调查掌握资料的基础上，文章对该区农畜产品加工企业的发展状况从时间序列的纵向和行业结构的横向进行了比较分析，同时又从原材料购买过程、资金的利用效率以及产品的销售过程等各个方面进行了全方位地剖析，指出由于企业存在着国有、集体和民营产权类型的不同，导致生产行为和行业发展存在着差异：A、生产者行为理论分析总结出，民营企业正在处于第Ⅰ阶段向第Ⅱ阶段的过度区，经济效益上升；集体企业处于第Ⅱ阶段的末端，经济效益下降；国有企业处于第Ⅲ阶段，经济效益负增长。B、不同产权企业在资金规模，产品的生产和售卖过程上存在着很大不同，最终导致国有和集体企业经济效益比民营企业要差得多，用模型方法分析得出结论：国有企业和集体企业都不存在规模经济，而民营企业存在规模经济的发展潜力，并且在行业结构中属于民营产权的新兴行业发展状况良好。C、行业间也存在着很大的不同：集体企业的优势行业是制酒、粮食加工和肉食品加工等行业；民营企业的优势在皮件类、服装、粮食加工和制酒等行业；国有企业当中食品加工、肉食品加工和食品冷库类是优势行业。

It is provedby using the compactness for Borel partitions,the properties of the SBD functions andsets with finite perimeter, and the direct method in the Calculus of Variations.

主要利用Borel分解的紧性、SBD函数和有限周长集的性质，通过变分的直接方法给出证明。

Employing the finite difference calculus, the cavitation bubble pulsating performance with the change of liquid viscosity, gas content, surface tension and condensability is obtained.

在系统地研究固壁面附近空泡溃灭过程的基础上，提出并研究了射流阈值、空泡在第一次和第二次脉动过程衰减蚀除机理以及空泡溃灭周期延长因子等问题。

Employing the finite difference calculus, the cavitation bubble pulsating performance with the change of liquid viscosity, gas content, surface tension and condensability is obtained. In the experiment research, the detailed processes of capitation bubble oscillation property and bubble collapse are gained by the fiber-optical detection sensor. Furthermore, th...

本文研究结果既可避免激光等离子体冲击波和空化带来的危害，也为合理利用激光等离子体冲击波和空化现象提供理论和实验依据，可供激光加工、激光医疗、水下激光加工和相关流体力学的研究参考。

Firstly, the approach formulates a cost functional to turn the inverse problem into a constrained minimization problem according to least squares criterion, then the resulting constrained minimization problem is transformed into an unconstrained minimization problem by using a penalty function technique, and then the closed Fr chet derivatives of the Lagrange function with respect to the properties are derived based on the calculus of variations, finally, one can solve the resulting problem by using any gradient-based algorithm and the finite-difference time-domain method.

该方法首先以最小二乘准则构造目标函数，将逆问题表示为约束最小化问题；接着应用罚函数法转化为无约束最小化问题；然后基于变分计算导出闭式的拉格朗日函数关于特征参数的Fr chet导数；最后借助梯度算法和时域有限差分法迭代反演德拜模型参数。

By the end of college, we had courses on analytical mechanics, strength of materials, mechanics of structures, theory of elasticity, theory of plasticity, theory of vibration, fracture mechanics, fluid dynamics, finite elements, plates and shells, tensor calculus.

年底的学院，我们的课程分析力学，材料力学，结构力学，弹性力学，塑性理论，振动理论，断裂力学，流体动力学，有限元，板壳，张演算。

By means of the decidable theory of boolean expressions, we present a new approach to check bisimulations of the finite-control π-calculus.

利用关于其布尔表达式的可判定理论，本文对有穷控制π-演算的互模拟验证问题给出了一种新的解决方法。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。