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小时间尺度
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  small time scales
     Through the analyzing characteristics of backbone network traffic at flow level, it shows that the self-similarity of the time series of flow intervals at small time scales is weaker whereas it is stronger at large time scales.
     通过对主干链路上的流量进行基于流的流量特征的分析,结果表明流间隔时间序列在小时间尺度上的自相似程度较弱,而大时间尺度上的自相似程度较强.
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     The multifractal analysis based on the wavelet transform modulus maxima(WTMM) technique is presented,and the characteristics of structure function and multifractal spectrum under large and small time scales are discussed.
     采用基于小波变换模极大值的多重分形分析方法,讨论了大、小时间尺度下的结构函数和多重分形谱的特点。
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     A mixed analytical/numerical method is proposed for flow problems described by equations with source terms of small time scales.
     针对带小时间尺度的源项的方程描述的流动问题,我们提出了混合解析/数值方法。
  “小时间尺度”译为未确定词的双语例句
     The major contributions of this dissertation are summarized as follows:(1) The dissertation studies the Internet packet round-trip time dynamics in small time scale, based on high density network measurements with interval of 10ms.
     1.论文在高密度测量(测量间隔为10毫秒)的基础上发现小时间尺度下Internet往返延迟表现出规律的锯齿状突发态和平稳态两种截然不同的特性。
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     TStudies on impacts of climate changes should be attachedimportance notonly to seasonal and monthly average changes but also to extremeschangesbecause hydrologic extremes changes have more impacts on nationaleconomydevelopment and contingent calamity.
     气候变化影响研究不仅要注意年、季和月平均状况,更应重视小时间尺度的极端事件的变化,因为极端事件与国民经济发展及可能发生的灾害密切相关。
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     This paper integrates the historical estuarine process with the modern estuarine process, associates the river dynamic method and the geomor-phological method.
     本文用现代过程和历史过程、河流动力学和地理学相结合的方法,从不同时间尺度论述预测河口演变的途径,其中小时间尺度的河口演变与预测,可用定量方式来表示.
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     Results show that there are periodic variations of 6~9 months,quasi biennial,4~8 years and 20 years or so for Henan drought and waterlogging changes. The distribution of small time scale period variations has been disordered in the discussed time region.
     结果表明 ,河南降水除了具有 6~ 9个月的自然周期变化外 ,还存在准 2 a、4~ 8a的中小时间尺度和 2 0 a左右的大时间尺度周期变化 ,且小时间尺度周期变化在所讨论的时间域中呈不均匀分布。
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     After comparision of the chaotic characteristics of decomposition coefficient of annual runoff with large scale with decomposed monthly runoff with small scale,it concludes that decomposition coefficient series belongs to chaotic series.
     通过分析大时间尺度的年径流量分解到小时间尺度的月径流量的分解系数的混沌特征量,论证了分解系数具有混沌特性。
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     On the Time Scales
     关于时间尺度
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     Discrete Generating Algorithm of Wavelet Functionunder Various Time Scales
     不同时间尺度波函数的离散化生成算法
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     MultiResolution Synthesis of Time Scale
     时间尺度的多分辨率综合
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     Time is...
     时间
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     Time
     时间
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  small time scales
An experimental technique for measuring the feeding behavior of copepods on small time scales is important because grazer/micro-patch interactions in the ocean are probably short (minutes to hours).
      
At small time scales, near the singularity, the commutation relations among the space coordinates diverge.
      
This problem is particularly apparent in the dynamically active and spatially varied coastal zone where rapid changes in particulate and dissolved matter can occur within small time scales.
      
In order to do this, the article develops a concept of how narrative monitoring can be said to control actions that are performed on very small time scales.
      
Nonlinear dynamics in the solar wind and cometary plasma over small time scales are identified using sensitive entropy measures of the weak wave organization in the magnetic field polarized components.
      
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This paper integrates the historical estuarine process with the modern estuarine process, associates the river dynamic method and the geomor-phological method. The content of this paper may be summarized as follows:l)Long-time scale:The estuarine processes in the geological history period could be used to forecast the estuarine processes qualitatively and to describe the tendency in the macroscopic sense. Although it stresses the effects of the silt in the sea-water transgression during the Holocen Epoch Changes,...

This paper integrates the historical estuarine process with the modern estuarine process, associates the river dynamic method and the geomor-phological method. The content of this paper may be summarized as follows:l)Long-time scale:The estuarine processes in the geological history period could be used to forecast the estuarine processes qualitatively and to describe the tendency in the macroscopic sense. Although it stresses the effects of the silt in the sea-water transgression during the Holocen Epoch Changes, yet it describes the various degress from geological background and original sediments of the boundary layer forming the river bed.2)Medium-time scale:The estuarine processes in the historical period also could be used to forecast the estuarine processes qualitatively and to describe the tendency in the macroscopic sense. In addition, it might carry out the rational and semi-rational estimation for reappearing characteristics and human activities.3)Small-time scale:The modern esturine processes describes the estuarine processes since last 100 years.The results of the study indicte that estuarine process estimation by the hydraulic geometric caculation of the stream channel and quantitative estimation of the fluvial processes is feasible.

本文用现代过程和历史过程、河流动力学和地理学相结合的方法,从不同时间尺度论述预测河口演变的途径,其中小时间尺度的河口演变与预测,可用定量方式来表示.至于中、长时间尺度的河口演变与预测,目前尚难用定量方式表示,它们只能从宏观上定性地阐明河床发展的趋势. 河口演变预测是指预测河口未来的变化规律.它是人们认识自然进而改造自然的重要依据.鉴于学科的发展水平,本学科目前尚停留在半定量阶段.本文根据预测成功的几个实例,结合用河流动力学分析方法和地理学宏观分析方法,探讨河口演变的预测途径,为了便于阐明问题,将时间尺度分成小尺度、中尺度和大尺度三类. 小时间尺度指短时间系列.较短时间内的河口演变规律,往往是工程建设中所必须掌握的重要内容,所以,亦是工程界最关心的问题之一. 水利工作者为了获得近期河床演变规律,进而预测河床未来的变化,往往利用近代量测技术和力学原理找出河床形态与各水力要素间的定量关系.目前所以预测精度较低,除了理论上尚未完善外,主要是获得资料和累积资料的时间系列较短.我国由于起步较晚,累积到的资料更不完整. 因生产建设的需要,当前多数停留在特征水文年、特征水文条件诸要求下进行的预测,常常...

本文用现代过程和历史过程、河流动力学和地理学相结合的方法,从不同时间尺度论述预测河口演变的途径,其中小时间尺度的河口演变与预测,可用定量方式来表示.至于中、长时间尺度的河口演变与预测,目前尚难用定量方式表示,它们只能从宏观上定性地阐明河床发展的趋势. 河口演变预测是指预测河口未来的变化规律.它是人们认识自然进而改造自然的重要依据.鉴于学科的发展水平,本学科目前尚停留在半定量阶段.本文根据预测成功的几个实例,结合用河流动力学分析方法和地理学宏观分析方法,探讨河口演变的预测途径,为了便于阐明问题,将时间尺度分成小尺度、中尺度和大尺度三类. 小时间尺度指短时间系列.较短时间内的河口演变规律,往往是工程建设中所必须掌握的重要内容,所以,亦是工程界最关心的问题之一. 水利工作者为了获得近期河床演变规律,进而预测河床未来的变化,往往利用近代量测技术和力学原理找出河床形态与各水力要素间的定量关系.目前所以预测精度较低,除了理论上尚未完善外,主要是获得资料和累积资料的时间系列较短.我国由于起步较晚,累积到的资料更不完整. 因生产建设的需要,当前多数停留在特征水文年、特征水文条件诸要求下进行的预测,常常缺少系统的理论研究. 大、中时间尺度指更长的或较长的时间系列

Carbon,oxygen isotopic records show that at least 8 big climatic changes have takenplace in the central Loess Plateau since 130 ka B. K. During 130 75 ka B. P. environ-ment of the last interglacial period was prevalent in this region,under which climate waswarm and humid,and the first layer of paleosol(S_1)widely developed with two clear pe-dogeneses indicating two much warm and humid time stages.In about 75ka B. P. ,theplateau entered into the last glacial age,in which the first layer of loess(L_1)was deposit-ed....

Carbon,oxygen isotopic records show that at least 8 big climatic changes have takenplace in the central Loess Plateau since 130 ka B. K. During 130 75 ka B. P. environ-ment of the last interglacial period was prevalent in this region,under which climate waswarm and humid,and the first layer of paleosol(S_1)widely developed with two clear pe-dogeneses indicating two much warm and humid time stages.In about 75ka B. P. ,theplateau entered into the last glacial age,in which the first layer of loess(L_1)was deposit-ed. But around 60ka B. P. and 30ka B. P. ,each saw a relatively warm and humid climaticenvironment in the general background of dryness and coldness,each having one weakpedogenesis formed. Since about 10ka B. P. ,the region has been in the post-glacial e-poch.9-6ka B. P. was the climatic optimum of Holocene with the highest air tempera- ture;subsequently,air temperature began to drop and frequently fluctuated until now. On the whole,in the central Loess Plateau,paleoclimatic change since 130ka B. P. hasbeen with the concurrence of the global trend on the scale of ten-thousand year;on thesmaller time scale,however,it has its own obvious regional features.

本文根据歧山剖面的碳、氧同位素记录分析表明,距今130ka来,黄土高原中部地区的气候至少经历了8次较大的波动。在万年尺度上,这些波动与全球的趋势基本一致,但在较小的时间尺度上,在大趋势相似的背景下,又有明显差别,反映了气候变化的区域特点。

In this paper, an adaptive multiresolution data filter has been established by using multiresolute theory of wavelet analysis. This filter not only has advantages such as locality, multiscale, multiresolution, which the traditional methods lack, but also is as accurate to determining catastrophe points as the M K method. In addition, this filter can determine the several catastrophe points at the same time without smoothing the large scale structure. The applications results show that the air temperature variations...

In this paper, an adaptive multiresolution data filter has been established by using multiresolute theory of wavelet analysis. This filter not only has advantages such as locality, multiscale, multiresolution, which the traditional methods lack, but also is as accurate to determining catastrophe points as the M K method. In addition, this filter can determine the several catastrophe points at the same time without smoothing the large scale structure. The applications results show that the air temperature variations during the last 100 years in China have passed three main cold and warm vicissitudes of lasting 30 years, which include the cold period before the 1919, the warm period from 1920 to 1954 and the cold period from 1955 to 1986. Corresponding to the larger scale climatic changes, the air temperature variations in China obviously show the catastrophe features whose jumping points occured in 1920, in 1955 and in 1987. Corresponding to the smaller scale climatic changes, the air temperature variations in China increase more the hierarchies and jumping points with the cold and warm vicissitudes. Though the temperature variations of Yunnan Province are similar to those of China, they are different from those of the Northern Hemisphere and Globe. Their main differences are that there is a weaker cold period in temperature variations from 1955 to 1978 and a jumping point of warming in 1979 in the Northern Hemisphere and Globe, but there is a stronger cold period from 1955 to 1986 and a jumping point of warming in 1987 in China.

本文以小波分析的多分辨分析理论为基础,建立了一个自适应的多分辨数据滤波器。该滤波器不仅具有传统方法所不具有的局部化、多层次、多分辨的优点,而且对于突变点的判断也象M-K方法一样的精确。此外,该滤波器还具有可以同时判别多个突变点而不改变原时间序列的大尺度结构的优点。本文的应用表明:中国近百年来的气温变化主要经历了三个持续近30年的冷暖交替,它们分别是1919年以前的偏冷期;1920年至1954年的偏暖期和1955年至1986年的偏冷期。对应于这种较大时间尺度的气候演变,中国的气温变化表现出了十分明显的突变特性,其冷暖交替的突变点分别发生在1920年、1955年和1987年。对应于较小时间尺度的气候演变来说,中国近百年来的气温变化则增加了更多冷暖交替的层次结构和突变点。云南近百年来的气温变化与中国的气温变化是基本一致的,但与北半球和全球的气温变化并不完全一致,其中最主要的差异是北半球和全球的气温变化在1955年至1978年是一个极弱的偏冷期,1979年发生明显增暖的突变,而云南和中国的气温变化在1955年至1986年则是一个极强的偏冷期,从1987年开始才出现明显增暖的突变

 
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