非定常波 的英文怎麼說

中文拼音 [fēidìngcháng]
非定常波 英文
transient wave
  • : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  1. The polyester fibre of resisting bacterium is one without which people can t live in modern times, but how to restrain the bacterium propagating excessively and keep people in health is a most important goal that fabrics and clothing industry are striving for. fibre of resisting bacterium can kill the bacterium effectively with the ratio of more than 99 % and it can restrain microbes. the polyester fibre of resisting ultraviolet radiation is also widely used. with the decreasing of ozonospheres in the atmosphere, there are more ultraviolet radiation in the sunlight which do harm to our skin, especially for those men working outdoors, it is more important to think about the way to lessen the harm. the polyester of burning - resisting has attracted more attention at home and abroad and burning - resisting textiles has been advanced definitely by law in many countries. our nation has also made strict claims in some special areas, such as fabrics in vehiciles and vessels, decorative fabrics in hotels. the everlasting burning - resisting fibres and textiles are badly needed. infrared ray fibre is also a new functional one that can absorb and reflect infrared ray after being processed physically. it s functions include physical therapy wet - ejecting and bacterium - restraining. this warm - preserving material can absorb the emitting heat from our bodies, at the same time it can also absorb and reflect the needed 4 - 14 urn wavelength ultraviolet radiation and accelerate netaboiism. fibre of resisting infrared ray is important in military areas

    抗菌纖維具有永久的抗菌性,對金黃色葡萄球菌、大腸桿菌殺菌率大於99 ,能有效抑制細菌繁殖,起到抗菌防臭作用;抗紫外線聚酯纖維的用途也是異廣泛的,隨著大氣層中臭氧層的日漸稀薄,日光中的紫外線日益增加,對人體皮膚形成極大危害,尤其對于長期從事野外工作的人,因此設法減少紫外線對人體的傷害顯得尤為重要;阻燃聚酯纖維則是一種倍受國內外人士密切關注的纖維,紡織品阻燃在許多國家已有明確法令規,我國也逐漸在某些特殊使用范圍做嚴格要求,如車船內用紡織品,高級賓館的內裝飾織物等,而且具持久性阻燃性的纖維和織物是現在更為需要的,真可謂用途廣泛;遠紅外纖維也是一種經過物理改性后具有吸收並反射遠紅外線的新型功能性纖維,是一種具有優良理療功能、熱效應功能和排濕透氣抑菌功能的新型紡織材料及保溫材料,能吸收人體自身向外散發的熱量,吸收並反射回人體最需要的4 14 m長的遠紅外線,促進人體的新陳代謝;抗紅外線纖維,則在軍事上有著重要的作用。
  2. It is necessary to control the mechanical stimuli precisely in the studies of cardiac mechano - electrical feedback ( mef ). in the present study a ventricular pressure - clamping system has been developed, which can be applied to isolated - perfused rabbit hearts. controlled by a computer, this system not only can make the left ventricle follow a command defining the same pressure wave as that during a beating cycle under physiological condition, but also deliver mechanical stimuli with a proper waveform to the ventricle at a particular time phase. this system integrates multiple functions, including perfusing, pacing, recording of electrocardiogram and monophasic action potentials, and clamping and measuring of ventricular pressures in isolated - perfused hearts. thus, it is a distinct system for investigating the phenomena and mechanisms of cardiac mef at organ level

    在心臟機械電反饋的研究中準確控制機械刺激是重要的.本研究室構建了一套適用於離體家兔心臟的心室壓力鉗系統.該系統通過計算機控制壓力鉗,不僅能模擬正生理條件下左心室的壓力形,還能在心室活動周期的特時相、以適當形對心室施加機械刺激.該系統集心臟灌流與起搏、表面心電圖記錄、單相動作電位記錄、心室壓力鉗制與測等多種功能於一體,特別適用於器官水平上觀察機械電反饋現象並探討其機制
  3. Abstract : it is necessary to control the mechanical stimuli precisely in the studies of cardiac mechano - electrical feedback ( mef ). in the present study a ventricular pressure - clamping system has been developed, which can be applied to isolated - perfused rabbit hearts. controlled by a computer, this system not only can make the left ventricle follow a command defining the same pressure wave as that during a beating cycle under physiological condition, but also deliver mechanical stimuli with a proper waveform to the ventricle at a particular time phase. this system integrates multiple functions, including perfusing, pacing, recording of electrocardiogram and monophasic action potentials, and clamping and measuring of ventricular pressures in isolated - perfused hearts. thus, it is a distinct system for investigating the phenomena and mechanisms of cardiac mef at organ level

    文摘:在心臟機械電反饋的研究中準確控制機械刺激是重要的.本研究室構建了一套適用於離體家兔心臟的心室壓力鉗系統.該系統通過計算機控制壓力鉗,不僅能模擬正生理條件下左心室的壓力形,還能在心室活動周期的特時相、以適當形對心室施加機械刺激.該系統集心臟灌流與起搏、表面心電圖記錄、單相動作電位記錄、心室壓力鉗制與測等多種功能於一體,特別適用於器官水平上觀察機械電反饋現象並探討其機制
  4. But when the markets went into a tailspin in august, volatility suddenly surged ; it became much more likely that those who had previously bought options would be able to exercise them ( particularly put options, which grant the right to sell at a given price )

    但當市場在8月捲入漩渦之中時,動性就突然暴增了;這樣,那些之前買入期權的人就有可能去執行它(特別是看跌期權,它有權以約價格出售資產) 。
  5. Firstly, a representative wind and wave model, which could both simulate the main characteristics of wig over sea waves and be suitable for numerical calculation, is presented. the model completely considers the fully nonlinear effect of wave surface on the wavy air flow, separates the disturbance of wave surface from the wing - air wave interaction flow, and overcomes the numerical calculation difficulties due to the large difference of dimensions between wing and water waves

    首先針對機翼在風浪中的線性氣動力問題,提出了一個既能夠反映風浪場主要特徵又適合於數值計算的風浪場模型,該模型完整地考慮了浪表面對氣流場的全線性影響,使面對流場的擾動分離出來,消除了機翼和浪幾何尺度上的巨大差異帶來的數值計算上的困難。
  6. Two nonlinear simulation methods are designed by curve fitting method and anfis which seem simply and right in the simulation experiment. based on the model different control strategies also were realized in detail such as chopped current control ( ccc ), angular position control ( apc ), amplitude - change ccc and pi control. a simple torque sharing function ( tsf ) method and a tsf controller were designed which decreases torque ripple effectively

    文章中還建立一種基於模糊神經網路的線性模型,並對比分析了三種方法,模擬中確了電機的最優開通關斷角,在此基礎上實現了電流斬控制、角度位置控制、變幅值電流斬控制以及分段雙閉環pi控制,模擬結果表明,它實現了電機的正運行,很好的抑止了電機轉矩脈動,同時有效地降低了噪聲。
  7. Based on an engineering background, through numerical simulation of the flow field in the hp turbine of the energy efficient engine ( e3 ), the article research the unsteady flow in a transonic turbine stage, the unsteady phenomena in the stage include the shockwave, wake, shedding vortex, endwall vortex, passage vortex and leakage vortex, etc. there are two shockwaves generated on the vane the tailing edge, one on suction side is named moving shockwave, and name another on pressure side steady shockwave

    本文首先對于研究的意義和國內外研究的現狀做了簡要的介紹,再從某工程背景出發,通過對e3發動機高壓渦輪內流場的數值模擬,研究了干涉的周期性的問題,以及渦輪級內見的現象:激、尾跡、脫落渦、根腳渦、通道渦、漏流渦。導向器尾緣會出現兩道激,在吸力面的激可稱為「運動」激,壓力面的激可稱為「」激
  8. The major job is manufactured a transmitter, which has three upmixer channels. its function is to up convert the signals from c - band to ka - band. the input local oscillator is provided by a low frequency crystal oscillator which has a good performance of phase noise, through 512 times multiply to ka band. this sysetem is used in the laboratory as transmitter source of the fuze, for the multidimensional objects in practise, which lead to the complexity of the reflect signal, so the amplitude, frequency and the phase of the transmit signals both have a key role in dealing with the reflection signals. therefore, this system requires for both the coherence of the single channel ’ s amplitude, phase and multi channels

    本文的主要工作是應用戶要求製作一具有三發射通道的上變頻系統,可以將c段的微信號上變頻到ka段的毫米信號。系統的本振輸入基頻由一相位噪聲好的低頻率晶振提供,經過512次的倍頻放大至ka段。本系統作為實驗室中引信的發射源,由於目標反射信號具有時變的多維性,反射信號變得極為復雜,在信號處理時,不僅信號幅值、頻率有決意義而且相位關系也很有決意義。
  9. Unsteady free - surface waves due to a submerged body in two - dimensional oseen flows

    流中潛體產生的表面
  10. Unsteady ship waves in shallow water of varying depth

    變深度淺水域中
  11. Wave - body interaction computation by a three - dimensional unsteady eulerian finite element method

    用三維歐拉有限元方法進行體干擾計算
  12. The three - dimensional ( 3d ) euler equations are applied to the study of numerical simulation of chemical non - equilibrium oblique detonation wave standing on an accelerating projectile with attack angle

    摘要採用三維化學反應控制方程組對駐在帶攻角高速飛行彈丸上的斜爆轟流場進行了數值模擬。
  13. Interaction of shallow water waves generated by two parallel ships moving in opposite directions

    淺水域中兩船交錯運行時的非定常波浪干涉
  14. The investigation in this dissertation shows the capabilities of ausm + scheme, such as the exact resolution of shock, low numerical dissipation, simple and requiring less computational effort. the successful applications on supercritical airfoils and wings show that the present flow solvers based on ausm + scheme are of valuable and promising in practical application

    通過本文的研究工作,展示了ausm +格式的激高解析度、數值耗散小、編程簡潔、計算量較小等特性,同時,將其成功地應用於跨音速超臨界翼型、機翼的氣動特性的數值模擬和顫振研究中,具有一的工程應用價值和良好的發展前景。
  15. A numerical investigation is carried out for the phase change in the unsteady expansion of humid gases

    摘要採用數值方法對激膨脹過程中,汽液相變與流場的相互作用進行了模擬。
  16. The security market is the most efficient and transparent asset pricing market, thereby it is likely to be affected by many risk factors, and thus fluctuates abnormally, which affects its functions

    證券市場作為以高效率、高流動性最透明解決資產價方式的市場,不僅受多種因素的影響,更容易受各類因素的異變影響導致證券市場的動從而產生風險,影響市場功能的正發揮。
  17. Nevertheless, we must bear in mind that revenue from non - recurrent items is a very unstable source of income that fluctuates with economic and market conditions

    不過,我們要注意的是收入極不穩,會隨著經濟及市場情況而動。
  18. The decision to complete the single market, with the signing of the single european act in 1986, lent new force to the belief, long held by many europeans, that a closely integrated group of economies would have much more to gain from lack of exchange rate fluctuations than from occasional exchange rate realignments

    隨著1986年簽署的歐洲單一文件,實現統一市場的決增強了長久以來多數歐洲人所持有的信念,即與匯率性的調整相比,緊密結合的歐洲經濟集團更能從匯率動的減少中獲得更多的利益。
  19. On the rotor blade pressure surface, the dominant frequencies of unsteady surface pressure are the up - stream blade wake passing frequency and its harmonics, and the amplitudes of pressure fluctuations decrease from leading edge to trailing edge

    轉子葉片吸力面壓力受葉片附面層和上游葉片尾跡共同影響,其主導頻率為上游葉片尾跡頻率及其倍頻,但是在吸力面前部氣流加速區壓力動幅度沿流向增大,而在吸力面後部氣流減速區壓力動幅度沿流向減小。
  20. Abstract : some typical results of computation on the shock ( blast ) wave interaction ( 2 - d and 3 - d ) with bodies and its experimental validation in shock tube are summarized, the suggestion for improving the numerical method ( difference scheme and grid systems ), developing 3 - d optical quantitative visualization technology and further studying the unsteady turbulent flow are put forward

    文摘:給出了在二維和三維條件下激(爆炸)與物體相互作用的一些典型計算結果,概括總結了激管中實驗的有效性,提出了改進數值方法(包括差分格式,網格系統) ,發展三維光學量可視化技術和進一步研究湍流的建議。
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