斜激波系 的英文怎麼說
中文拼音 [xiéjībōxì]
斜激波系
英文
oblique shock-wave system-
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
如果通過激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激光駐波場的節點和反節點處,其穩定程度取決于該處光壓力曲線負斜率的大小、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激光強度、失諧量等顯得尤為關鍵。The second one : we studied the effect of temperature on performance of lds. it was found that threshold current increase exponentially outpower and slope efficiency decrease parabola and exponentially respectively. coefficient of temperature shift is 0. 24 / k, wheras characteristic temperature also decrease with rise of temperature
研究了溫度對激光器各參數的影響,隨著溫度的增加,閾值電流呈指數增加,輸出功率和斜率效率分別呈拋物線和指數關系遞減,同時特徵溫度也減少,波長隨溫度的漂移系數為0 . 24nm ,並且總結了一些溫度和結構設計方面的關系。Internal waves are a kind of bridge relating the diapycnal mechanical mixing to external sources of mechanical energy : first, internal waves are driven by wind stress and barotropic tide so that large amount of mechanical energy are transported to abyssal ocean with propagation of internal waves ; second, the mechanical energy can directly be cascaded to mixing through instability and breaking of internal waves
內波是外界提供的機械能與混合之間聯系的橋梁之一,一方面風和潮汐通過激發內波,將能量向深海和大洋內區傳遞,另一方面,內波的不穩定和破碎直接將機械能串級到小尺度湍流混合中去。開展傾斜地形上內波的傳播以及內潮的產生等方面的研究對海洋混合過程的參數化以及混合對大洋環流的影響等方面的研究具有重要的科學意義。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;非線性波;擴散過程;穩定性;特徵值及特徵曲線;非線性陡斜,阻斷和激波的形成;守恆定律;一階偏微分方程;有限差分;數值穩定性等等。It is revealed that the control commands from the filter are composed of a sequence of ramp signals, whose time - ratio of variation never exceeds the permissible value to restrain the excitation to un - modeled harmonic modes
研究結果表明,該濾波器形成的控制信號是一系列的斜坡信號,對時間的變化率不超過允許的最大沖擊值,從而降低了未建模動態激勵。The configuration of the diffuser should be designed as a channel to allow the main flow pass through a shock train
擴壓段的形狀應設計成能使主氣流通過系列斜激波串減速的通道。A laser diode with 976nm center wavelength and 2. 03w maximum cw output power is pumping unidirectionally through the couple - imaging system on a double - clad yb - doped silica fiber with a yb - concentration 0. 65 mol % circular inner core, a d - shaped inner clad, and 15m length by f - b cavity. the center wavelength of the fiber laser is 1130nm, and the maximum cw output power is 130. 7mw. an optical - to - optical conversion efficiency of 42 % and a slope efficiency of 63. 4 % are obtained
用中心波長976nm 、最大連續輸出功率為2 . 03w的ld泵浦源,通過成像耦合系統,單端直腔式泵浦纖芯摻雜濃度為0 . 65mol % 、內包層截面形狀為d形、長度為15米的雙包層摻鐿石英光纖,實現了中心波長1130nm 、最大功率為130 . 7mw的連續激光輸出,光纖激光器的光光效率為42 . 0 % ,斜效率達到63 . 4 % 。分享友人