曲激波 的英文怎麼說

中文拼音 []
曲激波 英文
curved shock
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : Ⅰ動詞1 (水因受到阻礙或震蕩而向上涌) swash; surge; dash 2 (冷水突然刺激身體使得病) fall ill fr...
  • : 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. If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g

    如果通過光冷卻能使原子速度降至很小甚至為零,光壓力的作用將使原子被較穩定地囚禁于光駐場的節點和反節點處,其穩定程度取決于該處光壓力線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小,因此,如何在實驗中合理選擇光強度、失諧量等顯得尤為關鍵。
  2. This paper analyses the coupling wastage in columniform wave guide gas laser, and gives the function between the coupling wastage of laser guide modulo eh11 and the position and radius of reflector

    摘要分析了圓柱形導氣體光器中的耦合損耗,給出了最低階導模eh11的耦合損耗與反射鏡位置、率半徑的函數關系。
  3. In the displacement measurement based on the principle of laser interference, the gaussian quadrics fitting algorithm is used to fix the central position of facula and raise the location accuracy

    在基於兩球面干涉的長度和距離測量實驗中,運用高斯二次面擬合演算法為光光斑的中心坐標定位,提高了光斑的定位精度。
  4. In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy

    本文研究了高階精度加權基本無振蕩( weno )格式及其在雙守恆律方程中的應用,在此基礎上作了兩個方面的工作:一是針對高頻聲問題構造出一種基於保色散關系( drp )的weno有限差分格式,並對計算氣動聲學( caa )問題的代表性算例進行了大量數值實驗,比較了該格式捕捉數的能力;另外,針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題,研究了利用界面追蹤技術levelset方法和高階捕捉weno格式相結合的一種守恆追蹤方法,並且給出有代表性的密度滑移面問題的算例,得到一致高階精度的數值模擬結果。
  5. The relation between area of ccd saturation and 0. 632 m 、 1. 06 m laser power / energy was measured. the ccd camera was disturbed by strong radiation from laser outside the field of view in experiment. the relation between the area of ccd saturation and off - axis angle was measured

    通過實驗,得到光干擾ka - 320型面陣ccd光電探測器的像元飽和閾值、探測器靶面飽和閾值、局域損傷閾值,並得到了0 . 632 m與1 . 06 m段入射光功率與ccd靶面飽和程度的對應關系線,了解了面陣ccd探測器受光干擾的各個階段。
  6. The results of the experiment are in good agreement with the data of theoretical calculation and the actual conditions of earthquake calamity. these data and information give a convenience for the following work. the finite element analysis ( fea ) has been completed within the environment of ansys

    有限元分析主要以ansys為工具對煙囪進行了動應力計算,得出了在不同地震水平和豎向勵下動應力隨高度分佈情況,並據此繪制了動應力隨高度變化線圖。
  7. The components of the tangential stretch mode of swtns are assigned, the variational curve of the value of ig / id changed with laser power is obtained at 632. 8nm excitation, the vibration of d mode is assigned renewedly

    對單壁碳納米管的正切拉伸模的成分進行了歸屬,在632 . 8nm長下得到了ig / io值的隨光功率變化線。重新對d模的振動進行了歸屬。
  8. Fluorescence power transfer function, three - dimensional point spread function ( 3d - psf ) and three - dimensional optical transfer function ( sd - otf ) for the various fluorescent wavelength of the two kinds of fluorescence confocal scanning microscopy are calculated in this paper by using fourier imaging theory. the results show that the fluorescent wavelength has influence on imaging property of confocal microscopy such as spatial cut - off frequency, resolution and 3d - otf. there is a different missing - cone in the 3 - d space of otf when the ratio of excitation wavelength to fluorescent wavelength decreases

    本文在sheppard和gumin等人的理論基礎上,利用fourier光學成像理論,討論了不同熒光長對單光子和雙光子共焦顯微鏡成像特性的影響,導出了單光子和雙光子共焦顯微鏡的熒光功率傳輸函數、三維脈沖響應函數和三維光學傳遞函數,得到了它們在不同長與熒光長比值時具體的表達式,並且通過數值計算,得到了它們的線圖,結果表明:隨著長與熒光長比值的增加,焦斑的橫向分佈和縱向分佈變窄,橫向解析度和縱向解析度提高,系統的成像效果變好,當長與熒光長的比值下降到一定程度時,可以看到不同程度的失錐現象。
  9. " if i just a traveler, that also please let me arise your the dust of this very thick the earthif i just a dace son, that also please let me bring about you this extensive ocean the waves in multiple layersif i just a drama son, that also please let me be in love with you in endless drama in this life to !

    「如果我只是一個過客,那也請讓我起你這厚厚的大地的塵土來;如果我只是一條魚兒,那也請讓我掀起你這浩瀚的大海的層層浪來;如果我只是一個戲子,那也請讓我在這人生無盡的戲里愛上你來! 」
  10. Secondly, the third order nonlinear optical properties of these compounds are studied under the excitation of ps pulsed laser with the wavelength of 1064nm using z - scan technique, nonlinear refractive indices and nonlinear absorption coefficients are calculated according to the z - scan experiment curves of the compounds. all the three compounds have self defocusing characters and two photon absorptions. lastly, nonlinear refraction and absorption properties of these compounds are studied by z - scan technique under the excitation of ps pulsed laser with the wavelength of 532nm the self defocusing and reverse saturation absorption are found in these compounds

    根據實驗線計算了它們在1064nm下的三階非線性折射率和非線性吸收系數,三種化合物都具有自聚焦特性,並且在該長下,三種化合物均具有雙光子吸收,最後,以皮秒脈沖的532nm為長,採用z掃描方法,研究了三種金屬有機化合物的非線性折射和非線性吸收性質,在該長下三種化合物仍然表現為自聚焦特性,且其吸收為反飽和吸收。
  11. Shock wave curvature

  12. On the design of the system, the thickness measure system of mems chip is built based on lbu and pump - probe technology. on the analysis of data, the reflectivity curve is analyzed using the law of reflectivity change induced by ultrasound, and the thickness is calculated using the system designed by the article, to aluminum film the size of about 20nm can be measured, when the film be measured is single layer, the relative error of the system is less than 2 %, when the film be measured is double layer, the relative error of the system is less than 10 %

    在基礎理論方面研究了光(特別是超短脈沖光)超聲的勵機理,探討了光調制技術以提高系統信噪比,闡述了泵束探針束技術及相關實驗設置;在系統設計上,以光超聲為基本原理,以泵束探針束技術為系統設計方案完成了mems基片厚度測量系統的設計;在數據分析方法上,利用聲致光反射率變化的一般規律對測得的光反射率線進行分析,確定超聲回在薄膜兩界面間來回傳播的時間,以計算薄膜的厚度。
  13. The cellular structures width of po in the shock tube in atmospheric pressure and negative pressure condition has been measured. due to different condition, the figurations of the cellular structure obtained are either regular or irregular respectively. the relation between the cellular width and equivalence ratio is " u " shape

    在常壓和負壓兩種條件下測試了環氧丙烷( po )在管中的胞格尺寸,分別測得了規則和不規則的胞格結構煙跡,得出了胞格寬度與當量比是「 u 」型線關系的結論;並分析了雲霧爆轟的反應機理。
  14. Nonlinear dynamical systems ; nonlinear waves ; diffusion ; stability ; characteristics ; nonlinear steepening, breaking and shock formation ; conservation laws ; first - order partial differential equations ; finite differences ; numerical stability ; etc

    非線性動力系統;非線性;擴散過程;穩定性;特徵值及特徵線;非線性陡斜,阻斷和的形成;守恆定律;一階偏微分方程;有限差分;數值穩定性等等。
  15. Shallow water waves. derivation of the equations. linearization and solution. radiation conditions. more on characteristics and shocks, now for all shallow water equations

    淺水。方程的導出。線性化及其解。輻射過程。所有淺水方程的特徵線和
  16. Most of partial differential equation arising from physical or engineering science can be formulated into conservation form : it directly reflects conservation laws in natural sciences. from viewpoints of fluid dynamics, it can be obtained from the mass, momentum, energy conservation laws. because the form ( 0. 2. 1 ) has no other terms such as dispersion, diffusion ( caused by nonuniformity of some physical states ), reaction, memory, damping and relaxation etc, smoothness of solution of ( 0. 2. 1 ) may be loss as times goes on. even for the smooth inital data, solutions of ( 0. 2. 1 ) become discontinuous in a finite time

    由於雙守恆律( 0 . 1 . 1 )沒有其它項,如色散( dispersion ) ,擴散( diffusion ) (某物理量分佈不均勻引起的輸運) ,反應( reaction ) ,記憶( memory ) ,阻尼( damping )及鬆弛( relaxation ) (描述非平衡態)等,而僅有輸運或對流項( convection ) (由於流體的流動引起的輸運)時,守恆律( 0 . 1 . 1 )的解失去光滑性(這里不特殊說明守恆律就指該意義下) ,甚至即使光滑的初始數據,解隨著時間的發展會變成不連續,這在物理上表現為的形成。
  17. From the experiments in hyperbolic conservation laws, we can see that if we only use high resolution shock capturing method in scalar equation, there would have a transition near the interface ; but when coupled with level set method, we can get a sharp interface, the interface is tracked exactly

    通過實驗可以看出,對標量雙守恆律方程應甩levelset方法后,我們得到了銳利的圖像,界面得到了準確追蹤,而不像高解析度捕捉方法,在界面附近有一個過渡區域。
  18. In this thesis, we couple high resolution shock capturing method and level set method to compute hyperbolic conservation laws

    本文將高解析度捕捉格式與levelset方法結合起來計算雙守恆律方程(組) 。
  19. The response of the vibration system is solved. the torsional and flexural vibrations of swing movable teeth transmission system is analyzed and the elasticity of driving shaft, the elasticity of output shaft bearings and the elasticity of movable teeth are taken into consideration. the dynamic analyzing model of swing movable teeth transmission system is established

    對擺動活齒傳動系統的彎振動、扭轉振動及其耦合效應進行了分析,並綜合考慮了系統的輸入軸的彈性、輸出軸軸承的彈性以及活齒與器、內齒圈的嚙合彈性等的影響,建立了擺動活齒傳動系統彎、扭耦合振動的動力學分析模型。
  20. Explosives for civil uses - detonators and relays - determination of the mechanical strength of leading wires, shock tubes, connections, crimps and closures

    民用爆炸物.雷管和傳爆管.引線管連接件捲物和閉塞物機械強度的測定
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