在此情况下
- 与 在此情况下 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
In this paper,four aspects of the above problems were studied:Firstly, the problem of solving continuous linear operator equation inseparable Hilbert space is studied .
通过把第一类连续不适定算子方程转换为等价的无穷维方程组,然后利用投影法,给出了解存在唯一的充要条件;给出了连续线性不适定算子方程解析解,解决了不适定情况下解的表示问题,由此给出了算子方程的数值求解公式;进一步证明了,在解不唯一情况下,此表达式给出的解为算子方程的最小范数解,同时表示出了连续线性不适定算子方程的解集。
-
What's more the relations between different asset are classified to three groups which are the fundamental-derivative relation、the cross sectional relation and the comprehensive relation, on basis of which the asset pricing anomalies are classified individually to different groups.(2)The price model of the capital asset is constructed trailing the path of the asset value's incrementing and transferring. And then a three–factor model is established which can be utilized by the empirical researches. Concretely, under the capital chain, we conclude the relation between the stocks and the corporate assets is a fundamental-derivative one and the research object is the capital asset under the capital chain.
具体而言,本文在资产链的角度下分析股票和公司资产之间的"基础—衍生"关系,明确了本文的研究对象为资产链下的资本资产;建立了公司资产的价值,将公司资产和其基础资产公司的财产联系了起来,构造了资产链上第一个节点——公司资产的价值;将公司资产和资本资产进行了关联,在考虑公司资产变为资本资产的流动性增值后,建立了资本资产的价格模型;在前文资本资产价格模型的基础上进行了收益分解,基于此引入了具有长中短不同决策周期的三类投资者,在存在无风险资产和不存在无风险资产两种情况下分别建立了可用于实证的三因素模型。
-
Main contents and conclusions are: 1 The ionization current was measured continuously by a charge-integration method with a computer after the introduction of radon into the chamber.
主要内容及结论:1充氡后利用计算机连续进行电离电流累积测量,得到了精细的电流随时间的变化曲线,可清楚看出氡及其子体的生成衰变造成的电离电流的生长—稳定—衰减过程,与理论计算值进行了比较,由电离电流衰减速度的变化得出氡吸附作用的影响,并测量到电离室冲洗后氡的反扩散现象;2由已知活度的标准源定出相对测量的刻度系数K值,K=24.62 Bq/pA,对同一个监测源以半年为周期进行多次测量后得出稳定性符合要求;3通过测量电离电流和气压的关系曲线以及不同气压下的饱和曲线,确定了常规的工作条件;4测量了盐酸清洗电离室内表面降低本底的效果;5不确定度分析表明相对测氡的扩展不确定度(k=2)小于5%,由本底涨落得出探测下限为0.5 Bq;6理论上对壁损失修正进行了计算,实验上保持电离室工作在饱和区的情况下,测量了不同气压下电离电流的变化,从中得出了壁损失随气压变化的规律,可以看出,电离电流的实测值和计算值随气压变化规律基本一致;当气压大于125 kPa时,端效应等其它因素造成的影响不大于2%,因而在此工作条件下,测量电离电流后通过计算修正壁损失可以实现近似的绝对测氡,提出了进一步提高绝对测量准确度的方法。
-
This paper introduces the game theory and sets up, based on it, the choice model for the public transportation priority by identifying the function of the payoff and the muster of attendee and stratagem. In addition, it analyses the existence of NASH equilibrium, and puts forward the arithmetic of Iterated Elimination of Strictly Dominated Strategies in the general condition, the Integrated Strategies in the special condition and the flow chart of the model. At last, it verifies the feasibility of the model with the given example.
本文采用了博弈论的理论,通过对公交优先系统中参与者集合N、战略集合S和收益函数u的确定,建立了一种基于博弈论的公交优先技术方案选择博弈模型来量化方案选择问题;在此基础上分析了NASH均衡的存在性,并且给出了一般情况下的重复剔除劣战略和特殊情况下的混合策略两种模型求解方法以及公交优先技术方案选择博弈模型的流程图;最后通过算例分析,验证了博弈模型应用于公交优先技术方案选择的可行性。
-
The traditional separation of variables method is used to get the solution of SEW electric-fields when the parameter of the media changes abruptly.On the basis of these,WKB method is used to get the solution of SEW electric-fields when the parameter of the media changes gradually.
运用传统的分离变量法得到了媒质参数突变情况下球面电磁波场强的分布,在此基础上,模仿WKB方法推导出了媒质参数渐变情况下球面电磁波的场强分布。
-
Thirdly, we discussed how to decide whether the process is in control and if not, what shall we do to remove the signals. In this part, there are two aspects: T~2 statistic with unknown parameters and T~2 statistic with known parameters.
在此基础上,对如何通过历史数据建立稳态进行研究,其中的主要内容分为已知参数的情况下的异常值判异,未知参数情况下的异常值判异。
-
the fast transposition algorithm to sparse matrix expressed by triple list is introduced.this algorithm needs to determine the position in the transposed matrix position of the first element which is not equal to zero in the original matrix each row,it uses two arrays as auxiliary space.in order to reduce the auxiliary space which the algorithm needed,an improvement is made through introducing two simple variables.the improved algorithm saves a half auxiliary space compared to the original algorithm at the same time complexity.
摘 要:介绍基于三元组表表示的稀疏矩阵的快速转置算法,此算法在转置前需要先确定原矩阵中各列第一个非零元在转置矩阵中的位置,在此使用2个数组作为辅助空间,为了减少算法所需的辅助空间,通过引入2个简单变量提出一种改进算法。该改进算法在时间复杂度保持不变的情况下,空间复杂度比原算法节省一半。
-
It constructs a tentative frame of theories and policies of industrial clusters. It analyzes industrial clusters mechanism and policies. The research outspreads nine parts. The first part states the background, thepurpose and the present situation of the industrial clusters and development zone.Chapter2 summarizes the theory of development zone, which includes itsconnotation, forms and the process of development zone, and then analyzes thetheory and practices of development zone abroad, finding the gap between Chinaand other developed countries and regions. In chapter 3, based on study of presentresearch, this paper discusses competitive advantages and inherent mechanism, putsforward to the necessity of research of industry cluster in hi-tech zones and pointsout that the industry cluster is the key that Hi-tech zones carry out the seconddevelopment In Chapter4, this paper discusses the possibility and their mutualmotivation between industry cluster and development zone from the view ofIndustrial Ecologization, game theory and industrial structure theory; based onanalysis of Chapter3 and Chapter4,the next two chapters underlines thedevelopment mood and mechanism of industrial cluster in developmentzone,besides,these chapters points out the role of government in this mood. InChapter7, this paper discusses the system of evaluation of the performance ofdevelopment zones. At last, based on the analysis above and the present situation ofOptical Valley in Wuhan, Hubei province, the author estimates the performance ofoptical industrial clusters in Optical Valley, and puts forward to the advices about thegovernment, the mood and the policies of optical industrial clusters in OpticalValley.
全文研究从以下八个部分展开:首先,在文章的第一部分,论述了关于本篇论文的研究背景、研究目的和国内外研究的理论与实践现状;第二部分主要阐述了关于开发区的理论,包括其内涵、表现形式和发展历程,并对国外开发区的理论和实践予以论述,由此对比出国内外开发区发展的差距,从中找出国内高新科技园区的不足和先进发展模式的经验——即发展产业集群;第三章产业集群的基本理论,在对现有理论成果作了梳理工作之后,着重分析其竞争优势和内在机理,为开发区发展模式中引入此概念的必要性埋下伏笔;在探讨了开发区内大力发展产业集群的必要性以后,第四部分着重研究其可行性及其互动机制,包括从产业生态学的角度、博弈论的角度、产业组织理论的角度等,为开发区内的产业集群发展的优势进一步展开;在完成了对其必要性和可行性探讨的基础上,在本文的第五和第六部分分别研究了我国开发区产业集群的发展模式和运行机制,以及政府在当中应当扮演的角色,并提出适当的制度建议;第七章给出了开发区产业集群的评价体系,并在此基础上,第八章结合武汉光谷高新技术开发区的现状作出实证分析,对区内产业集群发展情况作出评价,并对其具体发展模式、政府行为及政策建议作出建议。
-
Based on this, aim at the disadvantage on Wigner Distribution and Fractional Fourier Transform that can't restrain noise interference effectively when be used to detect Linear Frequency Modulated signals interfered by heavy noises, we proposed a improved WD. Simulation results show that this method can restrain noise interference effectively and improve the ability of LFM signals detection. On the other hand, in multi-component cases, WD suffers from the cross-terms, which may impair some of the auto-terms. In order to separate original multi-component signals into components and reconstruct them separately, we can use the method of optimal filtering in fractional Fourier domain. But this method also has a problem that if signals have aliasing in the fractional Fourier optimal domain as well, the reconstructed signals will be distorted. In this thesis, a novel method of quasi Fourier transform is proposed in order to solve the problem of multi-component signal reconstruction, and have good results.
在此基础上,针对Wigner分布和分数维傅里叶变换在处理高噪声背景下线性调频信号检测的问题时存在不能有效抑制噪声干扰的缺点,提出了改进Wigner分布的办法,该方法能够抑制噪声,提高信号的检测能力;针对Wigner分布在处理多分量非线性调频信号时存在干扰项的缺点,以及分数域最优滤波方法在处理多分量非线性调频信号分离重构问题时存在的局限性,该局限性表现为在对最优分数域上也有信号分量重叠的情况进行处理时重构信号发生畸变,提出了新颖的类傅里叶变换的方法,该方法对在最优分数域上也有信号分量重叠的情况也能处理,得到的重构信号失真很小。
-
According to the practical characteristics and parameters during hot finishing rolling process of aluminium alloy JP1235, a three-dimensional thermo-mechanical coupled elastic-plastic FEM model was established with the software Marc. And this model was used to simulate the rolling state of F1 stand without back tension. The lateral distribution of rolling force、contact friction force and other mechanic parameters were calculated. Meanwhile, simulated the rolling state considering the influence of mill tilt, and studied the distribution of the mechanics under this state, discussed the effect of mill tile on mechanic parameters and strip steering, which can provide some reference to steering control strategy.
根据JP1235铝合金板带热精轧过程的实际工艺特点和工艺参数,采用非线性有限元软件Marc,建立一个三维热力耦合弹塑性有限元模型,模拟了精轧机组第一机架(F1机架)失去后张力作用后的轧制状态,计算出轧制过程中轧制力、摩擦力等力能参数沿板宽方向上的分布情况,在此基础上,模拟初始轧辊倾斜影响下的轧制状态,并对该轧制状态下的力能参数分布情况进行研究,探讨轧辊倾斜对力能参数分布及跑偏规律的影响,为纠偏控制提供了一定的理论依据。
- 推荐网络例句
-
According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
-
The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
-
When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。