wind fluctuation 中文意思是什麼

wind fluctuation 解釋
風波動
  • wind : n 1 風；大風，暴風；氣流；【機械工程】壓縮空氣。2 【航海】上風；風向；〈古語〉〈pl 〉方向。3 氣息...
  • fluctuation : n. 1. 波動，起伏，漲落；【物理學】脈動。2. 動搖不定，躊躇。3. 【生物學】彷徨變異。
  1. The main purpose of this study is to simulation a random fluctuation of wind velocity fitted to specified power spectrum in low frequency range in our wind tunnel

    本文研究的目的是在風洞中模擬風速隨機波動的陣風，這個基礎性工作對于開展風洞中的其它研究有著重要意義。
  2. Results show that there exist obvious differences and interesting connections between the fluctuation characteristics of natural and mechanical wind in built environment, which may be main reason why people have different thermal sensations to them

    研究結果表明，建築環境中的自然風和機械風的氣流動態特徵尤其在風譜特徵上有著明顯的區別和有趣的聯系，這很可能是導致人們對自然風和機械風有不同感受的主要原因。
  3. Experimental measurement of air flow velocity fluctuation of wind - sand flux

    風沙流中風速脈動的實驗測量
  4. When the rules for fluctuating wind pressure distribution and wind direction affection on it are summarized, the relationship of the fluctuation wind pressures and the mean wind pressures are analyzed

    分析了脈動風壓分佈情況和脈動風壓隨風向角的變化規律，總結了脈動風壓和平均風壓相互關系。
  5. Solar wind flows out from the corona the sun s outer atmosphere into interplanetary space at speed of between 300 and 900 km per second. it causes fluctuation to the earth s magnetic field, which we call magnetic storm. such event will cause deflection of compass needles

    而太陽風則以每秒300至900千米的速度由日冕太陽外大氣層向外拋射，進入行星際空間，對地球磁場造成擾動而產生磁暴，導致指南針指針偏移，嚴重的話更會導致電力受阻和電話線路中斷。
  6. As the strong normal share of the wind, turbulent fluctuation is strengthened and the sands are raised up from the surface ground the wind speed in the atmosphere of the low level has a horizontal share and this pushes the sands in the atmosphere aggregate, so the visibility descend

    近地面風速的垂直切變和地面熱通量的加大，都可使使邊界層湍流加強揚起地面沙塵。地面鋒區附近風場的強水平切變，鋒面垂直環流及鋒后斜壓轉換的作用，將地面捲起的沙塵帶到高空，爆發強沙塵暴。
  7. Some comparison analysis for wind pressure fluctuation load acting on high rise building

    有關高層建築結構風振荷載的比較分析
  8. In this way the tdwr can accurately measure the radial wind speed and its fluctuation from which low level windshear can be computed

    機場多普勒天氣雷達設有一套精密的電腦程式，讓它能自動探測由雷暴引發的風切變。
  9. In the first part, the research progress of cloud motion wind was introduced and the significance of the 1 - d fourier analysis technique was given. in the second part, based on fluctuation theory and fourier analysis, the one dimension fourier analysis technique on cloud motion winds is deduced and demonstrated theoretically. by simulating mathematically on frequency and on space, we not only uncovered two questions in practice, first is phrase folding, second is frequency spectrum overlapping, but also gave methods and suggestions to solve them or avoid them

    本文由六章組成，第一章介紹雲導風技術的研究進展和傅立葉導風技術的研究意義；第二章以波動理論和傅立葉變換為基礎，對傅立葉相位導風技術進行理論推證和誤差分析，通過模擬分析了空間域和頻率域的導風特點，揭示了在導風過程中出現的相位重疊和頻譜混疊兩種現象；第三章通過計算在空間域速度線性變化情況下頻率域振幅權重平均速度（
  10. In the first part, the research progress of cloud motion wind is introduced and the significance of the fourier phrase analysis technique was given. in the second part, based on fluctuation theory and fourier phrase analysis, the one - dim fourier analysis technique on cloud motion winds is deduced, and the error of the technique is analyzed. in the third part, basing on the one - dim fourier phrase analysis technique, the two - dim fourier phrase analysis technique is given, and improved the arithmetic of fast fourier transform ( fft )

    本文由六章組成，第一章介紹雲導風技術的研究進展和傅立葉導風技術的研究意義；第二章以波動理論和傅立葉變換為基礎，對一維傅立葉相位導風技術進行理論推導和誤差分析；第三章基於一維傅立葉相位法導風，給出二維傅立葉相位法導風的理論分析，並對該演算法進行了改進，加入了快速傅立葉演算法。
分享友人
分享到 Line

分享到臉書