过程
- 与 过程 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This project also obtained several limit theorems for some important dependent random variables and stochastic processes, such as the Strassen law of the iterated logarithm for negatively dependent random variables, strong limit theorems for mixing random vectors in Banach spaces, sample path properties for two-parameter fractional Wiener processes, and so on.
随机环境中的随机变量与随机过程的研究在国内外相当活跃,本项目主要研究它们的极限性质,着重研究了随机风景中随机变量与随机过程的极限性质,主要取得了以下几个结果:首先对简单对称的Kesten-Spitzer随机游动在低阶矩的条件下给出了强逼近,大大减弱了前人要求任意阶矩的条件,然后对独立风景中的一般随机变量给出了强逼近的一般性结果,由此导出在风景和随机变量都只具有低阶矩的条件下的独立但不同分布、混合相依变量的强逼近,在只有弱高于二阶矩的条件下得到了重相对数律和弱收敛;给出了连续时间参数的Brown风景中Brown运动和稳定风景中稳定过程的滞后增量和连续模等精确样本轨道性质;同时给出了一些重要的相依随机变量和过程的若干极限定理,如负相关随机变量的Strassen重对数律、抽象空间上混合相依变量的一些强极限定理成立的充分必要条件、两参数分数Wiener过程的样本轨道性质等。
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The Hausdorff measure for the level sets of multi-parameter symmetric stable processes has been obtained and the inner connection of the measures and local times for it has been demonstrated, which describes the fractal nature for the level sets of this kind of processes. As we know, it is always one of the focuses in the field of random fractal. The reasult of the existence and continuity of the local time for multi-parameter stochastic processes with stable components has been got in the project. Then we gained the measure for the random fractal sets such as the range and graph of this kind of processes. Furthermore, a progress besides the mentioned above in the project is that we have resolved the multifractal analysis of the sample paths for Brownian sheet, that is the multifractal decomposition of white noise in high dimension.
解决了多指标对称稳定过程水平集的Hausdorff测度问题,同时给出N指标d维稳定过程水平集的Hausdorff测度下界的最佳估计,它们揭示了其水平集的测度与局部时之间的内在关系,刻划了多指标对称稳定过程水平集的分形特征,表明了研究此类问题的积极意义,该问题是随机分形研究领域的国内外学者所关注的热点问题之一;解决了多指标稳定分量过程的局部时存在性与连续性问题,进而解决了由多指标稳定分量过程产生的随机分形集--象集、图集的测度问题;此外,本研究项目还解决了布朗单样本轨道的重分形分析,即高维白噪音的重分形分析问题。
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Wind action should be primarily influenced on the open shore segment and aerial-marine shore segment, and it's sensitive for the response of the processes of the shadow shore segment to the tide action.
弧形海岸过程的动力机理通过对南湾海滩近岸的动力作用分析表明:1)波浪动力是影响华南弧形海岸过程的决定性因子,近岸海区的波浪场与海滩场具有明显的相关区,关键区主要位于海滩的中间岸段及其海区的近岸带和海湾上、下岬角连线的邻近区域。2)风应力及其潮汐是影响整个华南弧形海岸时空变化过程的重要动力因子,其中,风应力主要偏重于对海滩开敞岸段及其水上岸段的影响,遮蔽岸段的海滩过程对潮汐动力作用的响应较为敏感。3)台风大浪及其冬季冷空气南下导致的动力作用加强是海滩过程急遽变化的重要因子。
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Firstly, milling mechanism of planetary ball mill and process of flaking microsphere aluminum powder were introduced simply in milling process,and several main factors were also discussed in course of milling aluminum powder by planetary ball mill.
首先,简单介绍了球磨工艺过程中行星式球磨机的球磨机理及微球铝粉片状化过程,并讨论了用球磨机在球磨铝粉过程中的几个影响因素;其次,是分离工艺过程中筛分和过滤待改进的工艺条件;第三,探讨了捏合过程对整个产品体系稳定性的影响;最后,简易配制涂料,采用相关仪器对产品质量进行评价,并提出三方面的改进要求。
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This modeling method is discussed from three aspects as follows. Firstly, on enterprise model framework, enterprise model expressed by this modeling method is more particular than other, since there are the views of product process and relation in it. Secondly, in this modeling method, the modeling process that the process model of products is created first of all and other models are created according as it is presented. Using this method, enterprise model is clear and consistent. Thirdly, on the representation of views, the traditional method of IDEF is appreciably improved.
论文从三个方面对此建模方法进行了阐述:1,企业模型框架方面,基于产品过程模型的集成化企业建模方法中的模型框架包含了产品过程视图和联系视图,因而它表达的企业模型更为丰富、详细;2,企业建模过程方面,提出了首先建立企业产品过程模型、再以此为核心建立其它模型的建模过程,这样建立的企业模型主次分明,各视图之间有机统一、协调一致:3,模型视图的描述方法方面,对传统的IDEFIntegrated Computer—Aided Manufacturing(ICAM DEFinition模型表达方法提出了一些改进建议。
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The paper is based on the theory of inter-function between water and rock, and losing energy in rock mass, brought forward that the water flow has head loss during water flow intruding through the coal seam effective water-resisting layer and energy waste concept for splitting rock mass, and analyzed the form of the remaining water pressure. Through the simulation experiment in the preventing water capability of water-resisting rocks in the coal seam scaleboard, studied the law, character of the losing in water head waste and the relation to pressure, water-resisting of hydrogeology and engineering geology character. Brought forward the new method of calculating the water inrush coefficient.
通过理论分析和实验研究,本文得出以下结论:高承压水在沿煤层底板隔水层导升过程中存在着明显的压力水头损失;同一地层条件下,煤层底板承压水水头压力越大其导升过程中的水头压力损耗就越大;同一水头压力条件下,地层的渗透性越差其阻水能力越强,水流导升过程中的水头压力损耗也越大;在同一介质中,当初始水头压力不同时,水流在导升过程中水头压力的衰减不同,在同一隔水介质中底板含水层水头压力越大其沿隔水层导升过程中的水头损耗也就越大,水头损耗随底板隔水层水头压力增加而呈递增趋势,另外它们相应的水头衰减速率也呈递增趋势,煤层底板隔
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By the help of numerical analysis and graphic recognition, Duffing-van der Pol non-linear vibration system with 9 parameters has been researched, the Graphic User Interface contains initial conditions, 9 parameters, power spectrums, trochoid chart of phase portraits, Poincaré mapping, analogous dynamic graph of displacements and the analogous vibration graph of mass blocks, the various dynamic characteristics of the non-linear vibration can be attained, which makes it possible to fully implement the visualized computer experiments and study of Duffing-van der Pol non-linear vibration system.
因为混沌运动十分复杂,在研究和模拟混沌运动的过程中,不但要进行大量的数值计算,而且要将计算结果直观地展示出来以便观察混沌现象,完成这一任务非计算机不可。自从洛伦茨利用计算机发现了第一个混沌吸引子以后,30多年来正是有赖于计算机技术的发展,促使混沌的研究取得迅速的发展。另一方面,混沌运动是确定性系统中出现的一种貌似随机的现象,走向混沌有其独特的过程,只有展示出它的演化过程,才能很好地了解混沌运动。也就是说,混沌是一门关于过程、演化的科学而不是一门关于状态、存在的科学。因此,只有利用计算机才能将混沌的动态过程和演化的方式真正地体现出来。
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From the "" to wet-membrane "" viscostty dry film evolves, you can see any of the oils or gloss drying or curing process must go through the process of viscosimetry products, that is solid oils or varnish, mostly due to its own power, but was decoratine adhensive in coated packaging business card printing and membership card making products surface, it is not possible to immediately contiguous becomes solid continuous gloss films, only up to a certain conditions in order to complete all of the varnish coating to the drying process of prefilming.
从"湿膜"到"干膜"的粘度变化过程中,可以看到:任何一种的底油或光油的干燥或固化过程必然都要经历该产品粘度的变化过程,即是固体的底油或光油,由于其本身多为粉末状,但在装饰粘附在被涂布的包装制卡和会员卡制作制品表面后,还不可能立即就形成连续进行变成为固体连续光油薄膜的过程,只有达到一定条件才能完成全部的由光油涂布到干燥成膜的过程。
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To in boat letter this kinds of situation, not divide stage course project and for setting up on the each period of stage there aren't thought , stage of control goal, this text has proposed the control goal model of the quality of stage of course of development based on milestone innovativly, model this divide course that information system develop into feasibility analyse , encode , integrate , is it wait for 9 stages to test, and has confirmed the control goal of quality for each stage , has set up two milestones of quality control , navigate letter course stage that information system develop row , is it have achievement may be examined each period of stage to make, a quality goal is controlled , avoid developing the transparency of course and quality control defect not high of visuality like this.
针对中航信的这种情况,受工程项目对过程进行阶段划分并为每个阶段设立阶段控制目标的思想启发,本文创新性地提出了基于里程碑的开发过程阶段质量控制目标模型,该模型将信息系统开发的过程划分为可行性分析、编码、集成、测试等9个阶段,并为每个阶段确定了质量控制目标,设立了两个质量管理的里程碑,将中航信信息系统开发的过程阶段划,使每个阶段都有成果可以检验,都有质量目标进行控制,这样就避免了开发过程透明度和可视性不高的质量管理缺陷。
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Utilized the correlative knowledge of mathematics and theoretical mechanics, the movement measure of the rolling forming of rectangle ring have been studied that based on the ring rolling theory. And the corresponding geometrical models and mathematical models have been established. It was revealed the variation law of ring in the cold rolling process.With the rolling processing, the inside and outside diameters of ring gradually increased with the cures similarly hyperbolic and the augment speed of the inside diameter was obviously larger than the augment speed of the outside diameter. With the rolling processing, the displacement, speed and acceleration of the ring centre gradually increased in the feeding direction in the horizontal and vertical ring rolling mill. With the rolling processing, the moment of inertia which ring reeled its centre and the whirligig of ring gradually increased. It caused the rotary speed gradually decreased. And it was benefit to decrease the circle tolerance and improve the precision of final molding.
本文基于环件轧制理论,运用相关的数学知识和理论力学知识,研究了冷轧过程中矩形截面环件轧制成形的运动测量,并建立相关的几何模型和数学模型,揭示了冷轧过程中环件的变化规律:随着轧制过程的进行,环件的内外径随类似于双曲线的曲线逐渐增大,且环件内径增大速度大于外径增大速度;在卧式轧环机和立式轧环机下,随着轧制过程的进行,环件中心的位移、速度及加速度不断增大;随着轧制过程的进行,环件绕其中心的转动惯量不断增大,导致环件的转速不断减小,这样有利于环件的整圆和最终成形环件的精度。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。