風向頻率 的英文怎麼說

中文拼音 [fēngxiàngbīn]
風向頻率 英文
frequency of wind direction
  • : Ⅰ名詞1 (空氣流動) wind 2 (風氣; 風俗) practice; atmosphere; custom 3 (景象) scene; view 4 ...
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 率名詞(比值) rate; ratio; proportion
  • 風向 : wind direction
  • 頻率 : frequency; rate
  1. ( 2 ) gene flow frequency was reduced as distance from pollen donor increased and a dramatic reduction occurred at about 2 meters. the maximum distance where gene flow was not detected was 50 m for hybrid rice while it was 70 m for ms lines, with an exception that in one of the four ms lines it was detected a frequency of gene flow 2. 8 + 10 - 6 at 150 m for zhong 9a

    在開花期主流ne的速為0 . 2 ? 2 . 2m / sec的條件下, 2個雜交稻品種的最大漂流距離為40m ; 4個不育系的基因漂流基本上到60m為止, 70m處基因漂流均降為0 ,僅中9a在150m處發現了1株basta抗性苗,經pcr檢測驗證為陽性。
  2. Choose two nodes on the edge of the structural to compare the results calculating by the finite element program midas, then we can draw a conclusion that these kinds of space truss systems is sensitive to the libration of the dynamic wind loads. to consider this factor is very necessary in the process of design, we will use the pulsant augmentation coefficient to realize it

    比較靜力荷載和動力荷載作用下的有限元軟體的計算結果,選取結構邊緣部分的兩個節點,對比它們在兩種方法計算下的最大位移的計算結果。經過比較可以看出重量輕、低、阻尼小的柔性建築物對荷載的橫振動是很敏感的,在進行工程設計時應該考慮這種因素,並可採用乘以振系數等相應方法來加以體現。
  3. Based on the analysis of commercial banks " current concept about fund management, this paper brings forward that fund management is the main - string in its operation, and that the concept of fund management, including security and profitability, is extended from current " forrying fund " to the management of the fund cost and fund risk the paper comprehensively discusses the principle of fund management, the management of fund costs, the tactics of management about fund liquidity, the measures of management about fund risks and how to solve the problems on interest risk in the period of frequent interest fluctuation. the paper puts forward ideas on how to improve the fund management. the security, liquidity and profitability of the fund, which are both contradictory and integrated with one another, are internal factors of fund management. fund liquidity is traditional core question. commercial banks face with a number of risks of witch credit risk is the greatest one because our country has adjusted interest rates 8 times since 1996, which covered a period of frequent interest fluctuation

    商業銀行面對許多險,但最大險是信用險。由於我國自1996年以來已連續調整了8次利,近幾年是利波動繁時期,研究利的敏感性問題顯得特別重要。要改善資金管理,提高商業銀行的經營水平,就要建立資金管理是商業銀行經營主線的理念,對資金要統一規劃和管理;要改革銀行的體制,建立現代企業制度和法人治理結構,在體制上為資金管理提供有利的運行平臺;增加改善資金流動性管理所需的貨幣政策工具,擴大資金調控手段;打破貨幣市場的僵化局面,為資金管理創造有利的宏觀環境;續續優化負債結構和負債載體設計;增強資金信用險規避和化解的措施;通過銀行資源整合,努力尋找資金的安全投放渠道,最終完成經營模式由傳統型現代型的轉變。
  4. It is showed in buffeting analysis that the analysis results in time domain agree well with those in frequency domain. effect of pylon wind field can increase the lateral buffeting response of pylon. nonlinear factor can decrease the nature frequency of cable - stayed bridge, and can increase the vertical and torsional buffeting response

    時域抖振分析結果表明:大跨度斜拉橋抖振的時域和域分析方法具有較好的一致性;考慮橋塔效應會顯著增大橋塔的橫橋抖振響應;非線性因素會降低斜拉橋的自振,會增大斜拉橋的豎及扭轉抖振響應。
  5. Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed

    論文首先分析了機運行特性及其最佳能利用原理,通過模擬及實驗驗證了採用直流電機的輸出特性模擬力機的最大輸出功曲線的可行性,並給出了模擬系統的硬體結構;然後為了實現交流勵磁發電機有功、無功功獨立調節機理,分析了交流勵磁雙饋發電機的數學模型和在追蹤最大能捕獲變速恆力發電時必需的定子磁鏈定矢量控制策略;針對雙饋發電機轉子能量雙流動的要求,提出並設計了具有能量雙流動能力的雙pwm交流勵磁用變器;最後為實現從理論到實踐的全面研究,研製出了一套小功完整的雙pwm變器交流勵磁的雙饋力發電機實驗系統,進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗;所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。
  6. The shift in frequency from transmitted waves gives the velocity of the eddies, which move along with the wind

    電波經反射后的偏移,可測定小渦旋的移動,亦即是速。
  7. Based on data generated, we classify 8 recipients into three categories in terms of possible environmental impact : ( 1 ) low risk of gene flow to common cultivars ; ( 2 ) intermediate risk to common wild rice with same aa genome ; ( 3 ) high risk to ms lines. 2. development of a specific database for toxin and anti - nutrient proteins bioinformatics is a very useful tool for risk assessment of gm foods

    從轉基因水稻的環境險考慮,轉基因常規稻的基因漂流及最大距離都較小,相應地其險也較低;不育系的基因漂流較高,最大漂流距離也較大,相應地其險也較高,應重點考慮轉基因漂流對雜交稻制種純度的影響及其可能引起的環境險後果;轉基因普通野生稻的基因漂流中等。
  8. In the simulation experiment, the whole system model is founded by the software matlab / simulink. using the stator active power computed from the maximal output power of the wind turbine as the reference value of vector control system, the result of experiment approves that the control strategy is true. not only the frequency of stator current is constant, but the control of stator active and reactive are decoupled, and the output power tracks the maximal power of wind turbine

    在最後的模擬實驗中,本文利用matlab軟體建立了系統各部分的模擬模型,選用與力機最大輸出功對應的定子有功功作為矢量控制的參考值做了模擬實驗,並給出了模擬結果,驗證了定子磁鏈定矢量控制策略的正確性:既保證了定子輸出的恆定,又達到了有功功無功功獨立解耦控制的目的,同時還較好地跟蹤了力機的最大功輸出。
  9. In this paper, a simplified method of calculating wind - induced response and design loads of super - high - rise buildings was proposed. coherence properties of wind load on typical tall building were analyzed and the results show that cross - wind loads at different height have strong coherence at vertex shedding frequency, and the coherence function ' s value here is near to 1

    首先分析了各測點層合力的相干特性,結果顯示各測點層所受順荷載之間的相干函數基本成單調衰減規律,而橫脈動荷載在漩渦脫落處存在和順不同的顯著相關性。
  10. At the meanwhile, since monsoon and tropical cyclone have close connections of navigation, here the paper emphasizes on the influence of el - nino & la - nina on their coming time, frequency and intension. finally, the paper brings in the problems in present academic field and the prospects of the future

    同時,由於季和熱帶氣旋與航海活動關系密切,在此著重分析了厄爾尼諾和拉尼娜事件對季和熱帶氣旋的發生時間、及強度的影響,文章最後還提出了當前學術界存在的問題和努力方
  11. The author firstly analyzed the mathematic model of the cascaded brushless doubly - fed machine ( cbdfm ) on the dq and mt coordinate rotating at rotor speed and synchronous speed seperatly, and the equivalent circuit of steady state. the author also analyzed the stator power winding flux oriented vector control strategy of the cbdfm as vscf wind power generator and validated the validity of the model and strategy by the simulation analysis

    此外,本文還首次詳盡地分析了級聯式無刷雙饋電機在轉子機械速dq坐標系、定子同步速mt坐標系下的數學模型,穩態等效電路及作變速恆力發電機運行時的定子功繞組磁鏈定矢量控制策略,通過模擬分析驗證了模型和策略的正確性。
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