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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
All agrochemical effects were substantial, but transient.
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Transient solution for queue-length distribution of Geometry/G/1 queueing model
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By a simple method (techniques of probability decomposition, renewal process theory) that is different from the techniques used by Hunter (1983), the transient property of the queue with initial state i(i ≥ 0) is discussed.
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The recursion expression for u-transform of transient queue-length distribution at any time point n+ is obtained, and the recursion expression of the limiting queue length distribution is also obtained.
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The main characteristic peaks in these transient absorption spectra were attributed and the growth-decay trends of several transient species were investigated.
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The control constraints influence strongly the transients of the robot entering the desired trajectory.
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Additionally, the nature of the transients depends on the initial conditions.
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The aim of the paper was to construct the attraction domain guaranteeing the given rate of the transients.
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The adaptations are considered as transients to a new homeostatic condition induced by an environmental change.
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Effects of oxygen and photosynthesis carbon cycle reactions on kinetics of P700 redox transients in cyanobacterium Arthrospira p
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| | Three kinds of spectrum analysis method are performed in order to study the regularities of distribution of solar wind. The first one is the general log power spectrum from which it can be seen that there is a overweighted 13-day period during the descending and minimum phases of the sunspot cycle, but in the ascending and maximum phases of the sunspot cycle, the spectrum is random. It seems that solar wind is in disorder during these periods. The second kind of spectrum analysis used is the maximum entropy... | | 本文应用功率谱估计中的加窗法和最大熵法对第20太阳活动周太阳风速度的周期结构进行了频谱分析;为了克服太阳活动高年瞬变扰动的干扰,本文还用互相关滤波方法与谱分析进行了比较。得到如下结果:除了个别年代外,在太阳活动周的所有相位里,太阳风速度几乎都存在13天和27天两种主要周期变化成份。在一些年里,还有9天的周期成份存在。 | | 文摘来源 | | Under a bipolar background magnetic field, a neutral current sheet is liable to form in between the new emerging magnetic field and the background owing to an eruption of opposite magnetic flux. Based on the ideal magnetohydrodynamic equations, this paper has made a numerical study of the above Formation of current sheets, considering the interaction between the magnetic field and the coronal plasma. The result shows that a subsonic eruption gives rise to a four-region structure from inside to outside: (1) ... | | 在双极背景场下,光球层反向磁通量的喷发将会在新老磁场之间形成中性电流片.本文从理想磁流体方程组出发,考虑磁场和日冕等离子体的相互作用,对上述电流片的形成过程进行了数值研究.结果表明,对亚音速喷发,将由里向外形成四个区域:(1)由喷发物质直接形成的低温,高密度日珥,位于最里层;(2)紧挨抛射日珥的低温稀疏区;(3)喷发物质和日冕物质向中性电流片集中形成的高温.高密度物质环;(4)在环的周围,由快磁声波形成的,密度略比日冕背景为高的前鞘区.上述结构与典型的环形日冕瞬变的观测特征相符.由此表明双极背景场下反向磁通量的喷发可能是触发这类瞬变的重要机制. | | 文摘来源 | | Hydraulic transients in piping systems are usually calculated by one-dimensional theory, in which real 3-D piping is replaced, by an equivalent straight conduit with the same cross section. In the present paper, hydraulic transients in a bend, typical 3-D element, is calculated under the assumption of 2-D inviscid flow. Results are shown for the cases, in which a plane pressure wave propagates through a bend and a bend starts moving impulsively. Transients pressure fields and resulting hydraulic forces acti... | | 管道系统的水力过渡过程通常是采用一维理论进行计算的,因此实际的三维管道通常采用沿中心线延伸变成具有相同过流断面的等效直管来代替。本文取肘形弯管作为典型的三维单元,假设其中的流体为二维非粘性流体计算确定其水力过渡过程的特性,对于平面压力波在固定的弯管中传播以及弯管作阶跃性的瞬态振动等情况进行了计算分析,绘制了弯管中流场的瞬变等压线,并研究分析了水对弯管的瞬态作用力。 | | 文摘来源 | |   | | << 更多相关文摘 |
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