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It is proved that these materials were the important factor in constitution of drought-resistance capa bility of seabuckthorn.

证明这些物质是构成沙棘抗旱性的重要基础。

We show that the joint total average cost curve is piece-wise convex.

其中我们证明得到联合总平均成本函数对时间T具有片段凸性的性质。

The author uses I-fuzzy quasi-coincident neighborhood system to introduce the concepts of I-fuzzy first countability and I-fuzzy second countability, and proves the degree to second countability in each of I-fuzzy topological space must be less than that to first countability, and gives the equivalent characterations about the continuity of function by convergence of sequences in first countable I-fuzzy topological spaces.

作者利用方进明在[4]中提出的I-fuzzy重域系引入了I-fuzzy拓扑空间的第一可数性和第二可数性的概念,证明了一个I-fuzzy拓扑空间空间是第二可数的I-fuzzy拓扑空间的程度一定小于它是第一可数的I-fuzzy拓扑空间的程度,并且在第一可数的I-fuzzy拓扑空间中对映射的连续性进行了等价刻画。

Not only can the experiment verify the soundness of the hypothesis, it can also improve or debunk it.

实验不仅能够证明假说的稳固性,而且也能够改进或者揭露它。

Based on modern optimization theory and optimal control theory, this dissertation studies some questions as follows:1. The optimization model of parameter identification of three-dimensional geologic history numerical simulation, algorithm and its applicationGeologic history numerical simulation is a basic content of basin numerical simulation, and the porosity is the major parameter in the evolution and development process of oil-bearing basin. According to the sedimentation and burial mechanism, the physical and chemical principles of oil geology, the mudstone porositys non-linear parabolic partial differential equation has been established.

本文应用现代最优化及最优控制理论,对如下一些问题进行了研究: 1、三维地史数值模拟的参数辨识优化模型、算法及应用地史模拟是盆地数值模拟的一个基础性的研究内容,地层孔隙度是含油气盆地地史演化发育过程中的重要参数,根据地层沉积埋藏机理和石油地质的物理化学原理,通过引入数学物理方程概念,建立了泥岩三维孔隙度场方程,根据问题的特点,给出了方程的定解条件,对方程的动边界也给出了处理方法,并且证明了解的存在性与惟一性,在此基础上建立了以当今实测数据为拟合准则的三维地史数值模拟的参数辨识优化模型,这是一个含有二阶偏微分方程约束的泛函极值问题。

An improved scheduling method based on exponential division of deadline is presented after study on the problem of prevenient average division of deadline method in this paper.The paper also proves when the relative deadline of each node is too large,the schedular performance of messages transmission task using average division of deadline will be decreased by introducing notion of quantization cost.The new method solves the problem well,and digital simulation validate the new method.

摘 要:针对平均分区的EDF算法在CAN总线中的应用出现的问题,本文提出了一种改进的基于指数分区的EDF算法,并通过引入量化误差的概念,推导证明当CAN网络中各节点相对截至期分布时间过大时,平均分区的EDF算法会导致CAN总线中信息传输任务可调度性的下降,而基于指数分区的EDF算法保证了信息传输任务的实时性,仿真试验验证了算法的有效性。

By combinatory counting process to enumerate data of work condition of each generators, thus makes sure the searching and solver in optimal condition.3. Set up the power equilibrium equation and flow equilibrium equation according to the slack variable. It is not necessary to adjust the optimization any more and guarantee the optimal precision of the solution.4. Digitalize the composite characteristic curve, such as the digital input and accurate extraction of data during the performing.The above mentioned is an expanding for optimal performing of hydropower station in theory. It has good engineering applicability.

在水轮机专业领域和水电站运行领域主要成果是:(1)用人工智能的方法解决了水电站机组间负荷动态最优调度问题,且用数学方法严格证明了解的最优性;(2)用组合计数对并联机组的每个组合工况进行无遗漏枚举,从而保证搜索策略的作用范围和解的最优性;(3)利用松弛变量建立了功率平衡方程和流量平衡方程,使优化结果不再需要二次调节,保证了解的优化精度;(4)综合特性曲线的数字化,包括曲线的数字化输入和在程序运行过程中对曲线信息的精确提取。

Probes into the strategies of integration teaching about DGS and geometry teaching Based on the practical analysis of integration teaching from the experiment, integration strategies on DGS and geometry teaching are advanced as follows: strategies of accuracy-based figure-to-data transformation; strategies of abundance-based generalization; strategies of dynamic-based test-driving; strategies of scene-based pre-generation; strategies of dynamic variability-based extending.

3DGS技术与初中几何教学整合的策略探究根据对微型整合教学实验的具体分析,本研究归纳和梳理了有关DGS技术与初中几何教学整合的主要策略:基于精确性的形数转化策略;基于丰富性的概括抽象策略;基于形象性的证明驱动策略;基于情景性的预设生成策略;基于动态性的拓展延伸策略。

Probes into the strategies of integration teaching about DGS and geometry teachingBased on the practical analysis of integration teaching from the experiment, integration strategies on DGS and geometry teaching are advanced as follows: strategies of accuracy-based figure-to-data transformation; strategies of abundance-based generalization; strategies of dynamic-based test-driving; strategies of scene-based pre-generation; strategies of dynamic variability-based extending.

3DGS技术与初中几何教学整合的策略探究根据对微型整合教学实验的具体分析,本研究归纳和梳理了有关DGS技术与初中几何教学整合的主要策略:基于精确性的形数转化策略;基于丰富性的概括抽象策略;基于形象性的证明驱动策略;基于情景性的预设生成策略;基于动态性的拓展延伸策略。

Indica variety ZYQ8 is an important genetic resource resistant to rice blast disease in rice breeding in North China.in this study,resistance identification of the populations of F1,F2,DH and B1F1of the crosses of ZYQ8×Jingxi17 (JX17) and ZYQ8×Lijiangxintuanheigu was carried out by using a Chinese differential strainZH10-8-14 from North China and a Japanese differential strain Ken54-04 from Japan and the results demonstrated that ZYQ8 had one dominant major gene Pi-zh which had been reported by Zhu L.H., et al., The results from experiments in which the F2 populations of ZYQ8×nine different varieties with known resistant genes were inoculated with strain Ken54-04 indicated that the gene Pi-zh was a new gene and non-allelic to nine known gene loci,namely Pi-i,Pi-km,Pi-z,Pi-ta,Pi-ta2,Pi-zt,Pi-kp,Pi-b and Pi-t.

籼稻品种窄叶青8号是我国北方稻区水稻育种上重要的稻瘟病抗源之一。本文利用我国北方稻区的代表菌系中10-8-14和日本的代表菌系研54-04,对窄叶青8号与感病品种京系17号和丽江新团黑谷的杂交F1、F2、DH和B1F1群体进行抗病性鉴定。根据抗病性的分离,确认窄叶青8号的抗性由1对显性主效基因,即朱立煌等报道的Pi-zh基因控制。利用菌系研54-04接种窄叶青8号与9个具有已知抗病基因的鉴别品种杂交的F2群体,各群体都表现二基因的独立遗传,证明Pi-zh基因与Pi-i、Pi-km|、Pi-z、Pi-ta、Pi-taz、Pi-zt、Pi-kp、Pi-b和Pi-t等9个已知抗病基因间存在非等位关系,是新的抗稻瘟病基因。

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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特,那个是爱朗。

Articulate the aims, objectives and key aspects of a strategic business plan.

明确的宗旨,目标和重点战略业务计划。