時間演變 的英文怎麼說

中文拼音 [shíjiānyǎnbiàn]
時間演變 英文
time-evolution
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 演 : 動詞1 （演變; 演化） develop; evolve 2 （發揮） deduce; elaborate 3 （依照程式練習或計算） drill;...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 演變 : develop; evolve; evolution
  1. The variations of sea ice in the arctic ocean are simulated by using a improved high resolution hibler dynamic - thermodynamic sea ice model during 1979 - 1998. the model is driven by surface atmospheric and oceanic forcing consists of geostrophic winds, surface air temperature, specific humidity, and longwave and shortwave radiative fluxes provided by international arctic buoy program ( iabp ). the simulated results show that arctic sea ice have noticeable seasonal and annual variability

    利用一個hibler海冰熱動力模式，在改進了其熱力部分和改變模擬范圍以及提高解析度的基礎上，以北極國際浮標計劃（ iabp ）提供的1979 - 1998年間逐日變化的日平均海平面氣溫場，濕度場，長短波輻射場，風場，洋流場，海洋熱流量場為強迫場，模擬了上述20年間北極海冰的時空演變。
  2. During the 1960s, scientists began to examine how natural systems, such as the weather, change with time

    1960年代，科學家開始研究自然系統（譬如天氣）如何隨著時間演變。
  3. It also particularizes spatial econometrics and spatial regression model. chapter three first studies the temporal evolvement characteristics of club convergence in the development of chinese regional economy

    第三章，首先研究了中國區域經濟增長俱樂部趨同的時間演變特徵，並把這種趨同的空間分佈格局加以可視化，探討其空間特徵。
  4. The exercise, codenamed " spellbinder ", was aimed at raising the awareness and improving the readiness of all frontline officers through enhanced participation and extended exercise duration. its second objective was to promote greater awareness and inter - agency coordination of other government departments and the private sector

    該項代號為雷霆的反恐演習，主要目的是透過廣泛參與、長時間演習及不斷演變的形勢，提高前線警務人員的警覺性和對有關程序的認知。
  5. We examin e the generation of bell state in bose - einstein condensates of two interacting species trapped in a double - well configuration analytically and the density of probability for finding the entangled bell state is given. we find that the oscillation amplitude of the probability of density for finding the entangled bell state becomes greater as the ratio of the interspecies interaction strength and the tunneling rate increases, moreover the self - interaction strength of the component a ( b ) has no effect on it. also we use the time - dependent su ( 2 ) gauge transformation to diagonalize the hamilton operator, obtain the berry phase and analytically the time - evolution operator

    此外我們還研究了在雙阱玻色-愛因斯坦凝聚中糾纏態的演化，研究發現隨著組分間相互作用和隨穿率的比值的增加系統演化到bell態的概率變大，而且組分自身內在的相互作用對形成bell態的幾率沒有影響；並且用含時su （ 2 ）規范變換對角化哈密頓量得到了系統的berry位相和時間演化算符，並研究了量子隨穿過程。
  6. We study the time evolution law of the atomic response in an open - type inversionless lasing system when the probe or driving field is off - resonance, and compare the law with that obtained when the probe and driving fields are resonant. we find that the detuning has considerable effects on the time evolution law : when the probe or driving fields is off - resonance, the dispersive responses for the probe and driving fields are no longer 0 and the two - photon coherence is no longer a pure real ; the variation of the probe detuning can make the time evolution law of the population distributions and the gain ( absorbtion ) of the driving field changing obviously ; with detuning increasing, the time evolution behavior of the gain ( absorbtion ), dispersion of the probe field and the two - photon coherence will gradually diviate from the evolution law of the standard damped oscillator ; with the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase

    研究了探測場或驅動場失諧情況下開放的型無粒子數反轉激光系統中原子響應的時間演化規律，並與探測場和驅動場都共振時的演化規律進行了比較.我們發現失諧對時間演化規律有顯著的影響;當驅動場或探測場失諧時，原子對探測場和驅動場色散的響應不再為零，雙光子相干不再是純實量;探測場失諧的變化將使粒子布居和驅動場增益（吸收）的時間演化規律明顯改變;隨著失諧的增大，探測場增益（吸收） 、色散和雙光子相干隨時間的演化行為逐漸偏離標準阻尼振子的演化規律;驅動場色散驅動場失諧量的增加而振蕩時間變長，振幅和穩定值變大
  7. This paper studies the status of this region by theories of regional sustainable development, mathematic models and gis methods in 10 years. this article analyzes general development level, harmony status and special changes of harmony status about every period of time, discusses the influence of each sustainable development subsystem to regional sustainable development, and brings foreword development stratagems to realize sustainable development of the studied region

    本文利用區域可持續發展理論，應用數學模型以及gis方法對該區域的可持續發展狀況進行了研究，分析了該區域10年來的綜合發展水平、協調性狀況以及分時段的協調狀況的空間演變，探討了該區域內各可持續發展子系統對區域可持續發展的影響，並在此基礎上提出了中原城市群經濟隆起帶實現可持續發展的發展戰略。
  8. Characteristic timescales and temporal - spatial changes of the subtropical high over the northern pacific in summer

    夏季北太平洋副熱帶高壓年際變化的特徵時間尺度及其時空演變
  9. The 1st time coefficient shows the staged feature of the progression of the moisture transport over asian - australian monsoon region, which relates with the large - scale important weather incidents in asian - australian monsoon region. iv

    第一特徵向量對應的時間系數圖表現了亞澳季風區4 - 9月份的水汽輸送階段性的時間演變特徵，可反映夏季亞澳季風區的大型天氣事件的發生變化過程。
  10. In order to study the variation characteristics of heat flux at nansha and xisha islands in the south china sea, the observational data from the ocean stations are calculated to obtain air - sea heat exchanges and the annual circulation of heat budget around the summer monsoon onset in 1998

    摘要為探索西沙和南沙海氣熱通量時間演變特徵，用海洋站觀測資料計算了1998年南海夏季風爆發前後，海氣界面熱量交換值及海面熱收支年循環。
  11. The image cube provides not only a clear range *. doppler image with superior resolution at each time instant but also the time *. varying history of the images, hence we obtain a good solution to the problem of range spread and image blurring

    該方法不僅能給出清晰的瞬時距離-多普勒像，而且能反映目標距離-多普勒像的時間演變特性，較好地解決了目標在距離上的分佈和多普勒像的模糊。
  12. The subvolcanic hydrothermal processes show a series responses of alteration rocks with some regularity of space and time evolutions, the main metallogensis was between the silicate alterations ( high - middle temperature and prssure ) and sulfide alterations ( low temperature and pressure )

    次火山水熱活動有一系列不同類型，並具一定空間分佈和時間演化規律的蝕變巖響應，主期成礦作用發生在中高溫壓硅酸鹽蝕變與中低溫壓硫化物蝕變之過渡階段。
  13. The landscape pattern is in the constant development and change, and today ' s pattern took shape based on the past landscape flows, including natural, social, economic and various kinds of ecological processes, therefore through analyzing the landscape pattern change at different time, we can reflect the landscape ecological processes, expound succession mechanism and rules in landscape, predict the variation tendency in the future of the landscape, and realize the sustainable utilizing of landscape resource finally

    景觀格局不僅體現著自然的、生物的和社會的各種生態過程在不同空間尺度上相互作用的結果，同時又決定著各種自然環境因子在景觀空間上的分佈和組合，從而制約著各種生態過程，影響著景觀內能量流、物質流和物種流的變化。因此，通過研究景觀格局可以更好地理解生態學過程，通過分析景觀格局隨時間的變化可以反映景觀生態過程，揭示景觀演替的機制和規律，進而預測景觀的未來變化趨勢，最終實現資源的可持續利用。
  14. The followings are studied. 1. studies on evolution of pred system in jixi county

    進行了如下內容的研究： 1 、績溪縣pred系統時間演變研究。
  15. Based on geographic information system and quantitative analysis, the evolution and spacial difference are studied in this thesis. complicated pred system is oversimplified to investigate its dynamic evolution law and interaction mechanism

    本文嘗試通過gis技術與定量化分析方法相結合，對績溪縣pred系統時間演變及空間分異進行了研究，將復雜的系統簡單化處理，從中探求其動態演變規律及互動機制。
  16. Refactor. as applications evolve over time, they often become less space - efficient. sometimes the best way to save space is to refactor the application, with space - efficiency as a high - level design goal

    重構。應用程序隨著時間演化，它們常常變得不夠緊湊。有時要節省空間的最好辦法就是重構整個應用程序，把空間緊湊作為一個高級的設計目標。
  17. It can been predicted by morlet wavelet transform that the 10 years after 2000 would appear an increasing rainfall trend in summer in northwest china. ( 5 ) the drought and flood have obviously interannual oscillatory variabilities. the climate is moist from 1980 ' s to early 1990 ' s. it ' s the extremely dry period in the 40 years when the rainfall is plentiful while drought happened now and then after 1995

    （ 5 ）西北地區夏季旱澇異常區區域旱澇指數的時間演變特徵表明：青藏高原東北側和渭水流域的夏季旱澇以20a與8a的年代際變化為主，北疆主要存在8 9a的周期振蕩，河西走廊即有15a周期振蕩，又有8 10a的周期振蕩。
  18. What the practical problems is often gotten is a single variable time series which has a time interval of t, reflect by a lot of interactive physics factor, containing the mark of all variates participating in movement, traditional time series analysis is to analyse going from this array to the form directly it ' s time develops, one dimension analysis loses useful information, the characteristics of phase space reconstruction method is to construct one dimension scalar quantity to high dimension vector, prop the geometry space of the state, show all dynamical information of system in phase space. the characteristic that just constructs again according to the phase space in this text, analyse the time series of responding, use the relevant knowledge of symbol dynamics and reconstruct phase space, put forward a kind of relation degree analysis method of the systematic mathematics model which has theory basis, so reach the correction of calculation mathematics model, make it accord with the actual systematic state

    實際問題中常常得到的是一個時間間隔為t的單變量的時間序列，它是許多物理因子相互作用的綜合反映，蘊藏著參與運動的全部變量的痕跡，傳統的時序分析是直接從這個序列去形式地分析它的時間演變，一維分析必然喪失許多有用信息，相空間重構方法的特點是把一維標量數據構造成高維矢量，支起狀態的幾何空間，在相空間中展示系統全部動力信息。本文正是根據相空間重構的特點，對響應時間序列進行分析，利用符號動力學、重構相空間等方法，提出一種有理論依據的系統數學模型關聯度分析方法，從而達到修正計算數學模型，使其更符合實際系統狀態的目的。
  19. The computation should be as below : firs t to process and analyze the data with software - sas, spss and so on ; then to set up linear production function, cobb - douglass production function and quadratic production function ; and to calculate total returns, marginal returns and average returns ; and finally to carry out comparative analysis about all the computation results of different methods

    除此以外，還建立了線性生產函數、二次生產函數等不同類型的數學模型，並對不同方法的計算結果進行對比分析，以尋找最切合實際而行之有效的經濟學方法。分析表明:在時間演變上，張掖綠洲農業水資源總效益是遞增的，而且具有加速度，反映了農業技術進步對生產發展的促進。
  20. The approach adopted in the thesis was proven to be successful, and can be generally applied to study the mixing and stratification process in other shallow seas and shelf oceans

    且完整、全面地反映了整個渤海溫躍層空間分佈特徵，及其隨時間演變的細致過程。這種方法具有適普性，可用於其它陸架海域混合和層化的研究。
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