fluctuation pressure 中文意思是什麼

fluctuation pressure 解釋
脈動壓力
  • 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。
  • pressure : n 1 壓；按；擠；榨。2 【物理學】壓力，壓強；大氣壓力；電壓。3 精神壓力，政治[經濟、輿論等]壓力。4...
  1. Study on the method of detecting pressure fluctuation in draft tube

    尾水管壓力脈動檢測方法研究
  2. In this thesis, flow regime identification and malfunction diagnosis of fluidization were studied with fractal technology, the presented methods for both flow regime identification and malfunction diagnosis were proved of effectivity. main achievements are as following : 1. fractal brownian motion ( fbm ) was made from gauss noise and compared with pressure fluctuation signal of gas - solid fluidization, which demonstrated the similarity between the fbm and the signal

    在通過fbm （分數布朗運動）數據模擬證明了氣固流化床壓力波動信號與分數布朗運動是相似的基礎上，提出了用分數布朗運動來模擬氣固流化床壓力波動信號，並採用r s分析法從信號時間序列中提取出hurst指數，通過分析信號hurst指數值對流化床流型和結塊故障進行了研究。
  3. Thirdly, the correlative coefficient is computed between the pressure fluctuation signal of draft tube and the displacement signal of upper guide bearing, the thrust bearing and the head cover, with this the conclusions on the shafts response due to pressure surge in

    並與模型尾水管壓力脈動試驗結果進行對比?結合流動模擬試驗以及動力特性計算結果，全面分析?評定機組的實際運行狀況，劃定運行區域，為電站合理調度
  4. Intermittence analysis of pressure fluctuation signal in scisr

    撞擊流反應器內壓力波動信號的間歇性分析
  5. The rule of fluctuation of energy and pressure about canonical assemblages relativity quantum perfect gas under high temperature is given through strict theoretical inference and comparison with the theory on non - relativity

    通過嚴格的理論推導，給出了正則系綜高溫條件下相對論量子理想氣體的能量和壓強的漲落規律，並與非相對論漲落進行了比較
  6. When the moisture content is below fibre saturation point, the movement of absorbed water is subdivided into two parts : one is diffusion transfer due to the vapor pressure gradient, the other is moisture movement caused by the pressure fluctuation due to the variation of medium

    在纖維飽和點以下時，木材內部吸著水的遷移可分為：水蒸汽壓力梯度下的擴散遷移和由於乾燥介質壓力的波動而引起的浮動壓力下的遷移兩個部分。
  7. Speical attention should be paid to prevention of inspiratory regurgitation, supine hopotension syndrome, and cyclic fluctuation caused by sudden reduced abdomenal pressure

    結論麻醉方法以全麻為宜，術中應預防誤吸，仰臥位低血壓綜合征等，加強呼吸和循環管理，重點防止因腹壓驟降所引起的循環波動。
  8. When a series 994 backflow preventer is installed for dead - end service applications, discharge from the relief vent may occur due to water supply pressure fluctuation during static no - flow conditions

    當系列994防迴流閥安裝在終端應用場合時，由於在靜止無流動情況下水供應壓力波動可能會從安全閥排放口產生排放。
  9. He said that the most commonly found dangerous goods inside baggage at hkia were lighters, perfume or toiletry items, aerosols or gas cylinders for medical or sporting uses, signal flares, gas torches, and household items such as adhesives, polishes, bleach and drain cleaner. these items could be a danger when transported by air due to sudden temperature and pressure fluctuation and vibration

    他表示，在香港國際機場處理的行李內，經常發現的危險品包括打火機、香水或梳妝物品、醫療或運動用的噴霧罐或氣罐、訊號彈、以氣體燃點的點火器和接合劑、擦亮劑、漂白劑和溝渠去污劑等家居用品。
  10. The system has following functions : showing indicator diagram, the mean value of maximum pressure, maximum pressure raise rate and rotating speed, the distribution of maximum pressure, maximum pressure raise rate and ignition advance angles, the speed fluctuation in cycle, speed fluctuation between cycle and ignition advance angles

    本系統可以完成如下的工作：測量摩托車發動機的平均示功圖；平均最大壓力上升率；平均最高壓力；平均轉速；點火提前角；最大壓力分佈；最大壓力上升率分佈；點火提前角分佈；循環內轉速波動；循環間轉速波動等。
  11. Although the flux per revolution of the optimized pumps is a little smaller than that of tatsuno combined pumps, other characteristics, such as fluctuation rate, maximum pressure angle and velocity fluctuation rate etc, are much better. the methods to cut gears are proposed in the theory for the practical produce in the future

    雖然，在體積相等的條件下，優化出來的外圓弧包絡線內嚙合齒輪泵的排量略小於tatsuno組合泵的排量，但其它性能（如：流量脈動率、最大壓力角、速度波動量）都更優。
  12. The effect of variation in surge shaft section size upon the reflection of water hammer pressure and the speed of quality fluctuation attenuation

    調壓井斷面尺寸變化對水錘壓力反射及質量波動衰減速度的影響
  13. The possible factors including the deviation of temperature in length and breadth of rod, the changes of transfiguration resisting force under the changes of temperature, the adjustment of roll gap, the variation of rolling pressure, the changes of roller speed during dynamic adjusting press, the unmatched of seconds - flux under the dimension fluctuation of the coming sample and so on. the whole system was a closed loop which factors in it interacts each other

    可能的影響因素有:沿軋件縱橫向溫度變化、由溫度引起的軋件變形抗力變化、軋機輥縫值變化、負載變化、電機調節系統由不穩定向穩定過渡過程中軋輥轉速的變化（如咬鋼過程中的動態速降后的回復階段） 、來料尺寸波動造成秒流量不匹配等，整個模擬系統是各個因素相互影響關聯的一個閉環系統。
  14. Numerical prediction of pressure fluctuation within francis turbine for large - eddy simulation

    基於大渦模型水輪機壓力脈動的數值預測
  15. This paper gives a review on the five analysis approaches of fluctuation pressure on the hydraulic structures and hydromachines : the method of probability and random process, the method of time - space correlation, the method of fitting data, the method of distribution hypotheses on the data of test survey stations, and the hydromechanics method

    摘要綜述了水工建築物及水利機械上脈動壓力的五種分析方法：概率和隨機過程法；時空相關法；數據擬合法；根據實驗測點數據分佈假設法；流體力學方法。
  16. Presently most of the theoretical method to predict the propeller - induced hull pressure fluctuation is based on the calculation method in which the pressure is induced by pulsating source in infinite flow. the calculation method is adopted and the corresponded computer program is complied. the propeller - induced hull pressure fluctuation due to blade thickness, blade load, cavity thickness and the change of the cavity volume can be analyzed respectively in the computer program

    目前，螺旋槳誘導的船體表面脈動壓力的理論預報方法，大多是以無限流場中點脈動源誘導的周圍流場的脈動壓力的計算方法為基礎的，本文採用該方法編制了計算程序，可以分別考慮槳葉厚度、槳葉負荷、槳葉上空泡厚度及其體積變化在船體表面指定位置上產生的脈動壓力。
  17. The measurement was made on a gas - solid fluidized bed in our laboratory. the pressure fluctuation signals were obtained and analyzed through power spectrum density. the relation of the particle size to pressure fluctuation and other parameters was studied by using fuzzy set theory

    在實驗室條件下對氣-固流化床的顆粒進行了測量，通過功率譜密度對所獲得的壓力波動進行了分析，並應用模糊集理論對顆粒尺寸與壓力波動及其它影響參數的關系進行了研究。
  18. According to the selected project, a stability test with scale of 1 : 35 of cushion bottom had been done. with the research results of the experiments and the flow shape of xiao wan hydraulic power station were thought about, on the other hand, the ternary complex jet shape of baishan water cushion was analyzed, all this gave a base for the analysis of the force of the cushion bottom. through observation, the dynamic water pressure, the fluctuation pressure, the time - homogeneous pressure on the surface of the bottom and the characteristics of the fluctuation pressure could be got, also the calculation method and the test results were compared to get the argument

    針對選定的方案，進一步做了1 ： 35比尺的水墊塘底板穩定性試驗；通過試驗及借鑒小灣水墊塘內水流流態的研究成果，分析白山水墊塘內三元復雜淹沒射流流態，為水墊塘內底板受力分析打下基礎；通過觀測得到水墊塘底板動水沖擊壓力、脈動壓力、底板上下表面的時均壓力及脈動壓力特性，並通過計算方法與試驗成果進行相互比較論證。
  19. Using optic fiber sensor and pressure sensor to detect pressure fluctuation, pressure difference and particle concentration signals in order to study the characters of the bed under low velocity. attractor and fluctuation complexity theory are used in this paper. attractor analysis testifies phase space theory of takens : measurement and analysis one state variable can reflect the qualitative character of the whole system

    在本文的最後，通過光纖、壓力傳感器同時獲取同一操作條件下不同位置顆浙江人學碩士學位論文粒濃度、壓差、壓力信號時間序列進行了吸引子和漲落復雜性研究，證實了takens的相空間嵌入原理：即一個狀態變量進行測量就可以反映整個系統的定性性質。
  20. Numerical simulation of reynolds stresses influence on mean and fluctuation pressure

    雷諾應力對平均和脈動壓力影響的數值模擬
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