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wave base 波底〔指波浪作用的限界深度〕。

wave cloud

Fault location techniques are used to pinpoint location of the fault on a tra - nsmission line . transmission line faults must be located accurately to allow maintena - nce crew to arrive at the scene and repair the faulted section as soon as possible , which can relief the burdens of patrol personnel and reduce the revenue losses due to power outage . the accurate fault location alogrithms play an important role in power system safety , economy and reliability . in this paper , diversified fault location algorithms are summarized . according to the principles of algorithms , they can be classified into two categories : impedence based algorithm and traveling wave based algorithm . based on the analysis and comparission of each algorithm , the corresponding merits and app - lication limitations are presented 精確的故障定位為現場巡線工作人員及時提供準確、可靠的信息,減輕人工巡線的負擔,同時加快線路的恢復供電,減少因停電造成的綜合經濟損失,為提高電力系統運行的安全性、經濟性和可靠性發揮重要的作用。本文總結了現有的各種測距方法,根據測距的原理將其分為阻抗法和行波法兩大類,對各種算法的優缺點及適用范圍進行了分析,在此基礎上提出了一種組合的測距方案,并對算法進行了仿真分析。

In order to obtain the complex rcs of the target quickly in high frequency band , the graphical electromagnetic computing software , greco , is used . the modification of the computing kernel code is presented . the judgement of edges of complex targets is more sufficient and the computation of edge wave based on physical theory of diffraction ( ptd ) is more exact after the modification 為了可以準確地預估雷達目標的rcs ,我們對于航天部207所的圖形電磁計算軟件( greco )進行了進一步的開發與包裝,用borland公司的c + + builder開發了更加易于使用的基于windows操作系統的新版greco ,并且在考察了原有的greco計算內核之后,結合計算機圖形學方面的理論,對greco的內核代碼進行了改進,整體上使得邊緣繞射場的計算結果更加準確。

This paper done deepgoing theoretical studies on the nonlinear dynamical analysis of tension leg platform ( tlp ) in waves based on reasonable mathematical model , revealed some important phenomenon , and gave out integral analysis theories and computational method . the main parts of the paper are as follows : 1 本文針對深海張力腿平臺本體在波浪作用下的非線性動力分析問題進行了深入的理論研究,建立了合理的數學模型描述了相關的問題,揭示了一些重要現象,提出了完整的張力腿平臺本體非線性動力分析理論和計算方法。

At first , double random phase encoding techniques are looked back and its improved methods are introduced in detail . in connection with characteristics of spherical wave gene and function of phase mask , one random phase encoding techniques are proposed with spherical wave based on 4f system 本文首先對雙隨機相位加密技術進行了回顧,并對它的一些改進方案的特點作了詳細介紹,并在此基礎上,根據球面波相位因子的特點和相位掩模在加解密中作用,提出了一種利用球面波照射4f系統的單隨機相位編碼加密的新方法。

In chapter four , using the quantum statistics method we study the cohesion of a metallic nanowire irradiated under electromagnetic wave based on the results in chapter three . we obtain that the cohesion force is effected notably only when the frequency of electromagnetic field is at the vicinity of the energy span of the lateral levels of the nanowire 第四章以第三章的工作為基礎,用量子統計的方法,分析了太赫茲電磁波部分輻照對金屬納米線內聚力的影響,得到了只有當外場頻率與橫向模式共振時內聚力才有顯著變化的結論。

The travel time of lcr wave and applied stress showed well linear relationship in the qualitative and quantitative experiments , experimental result matched with the theory , achieved the anticipative requirements . these experiments validated the feasibility of evaluating the stress with lcr wave based on tdc travel time measurement preliminarily 定性實驗與定量實驗顯示, lcr波傳播聲時與加載應力具有良好的線性關系,實驗結果與理論基本相符,達到了預定要求,也初步驗證了基于tdc聲時測量的lcr波應力檢測方法的可行性。

Any city could only stand tall in the modern globalization wave based on the construction of its local cultural characteristics 任何一座城市也只有建立在地方文化特色的基礎之上,才能屹立于現代化與全球化的浪潮中。

This dissertation depicts how to design an instrument to measure wave height of ocean wave based on the principle of ultrasonic detection 本文敘述的是如何根據超聲測距原理來設計測量海浪波高儀器。

The energy - momentum pseudo - tensor of the cylindrical gravitational waves based on hu ning ' s expressions 基于胡寧表述的柱面引力波能量動量贗張量

Wave based method for multi - domain acoustic analysis 法在多域聲學分析中的應用