勢速度場 的英文怎麼說

中文拼音 [shìsùdùchǎng]
勢速度場 英文
potential velocity field
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 場 : 場Ⅰ名詞1 （平坦的空地 多用來翻曬糧食 碾軋穀物） a level open space; threshing ground 2 [方言] （...
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. （快慢的程度） speed; rate; pace; tempo
  1. In this paper a kind of cardio - cerebral arterial bifurcation vessel hemodynamic characteristics are studied with the boundary element method, and the blood flowing velocity vector distributions have been calculated. in addition, the flow field distribution and the pressure on the particle surface are also calculated, when there is flow - round particle at the place of bifurcation, the move tendency of the particle is judged, the possible reasons of causing the atherosclerosis, thrombus, angioma are analysed

    本文用邊界元方法研究了一類典型心腦動脈分支血管中血液流動的流體動力特性，計算了分支血管血液流動的速度矢量分佈，同時計算了分支附近有多個顆粒狀繞流物時血液的流場分佈，及顆粒物所受壓力狀況，給出了顆粒物的運動趨勢，分析了引起粥樣斑塊病變、血瘤、血栓的可能原因
  2. 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。
  3. The major work is as follows : solution of two dimensional radiation or diffraction fluid field. this thesis extends multipole expansion method to adapt to disturbed fluid fields of 2d floating bodies with asymmetric forms, which is applied with symmetric forms originally. and given the solution of potential velocity and hydrodynamic pressure of radiation and diffraction fluid fields, which is incited by a 2d arbitrary form, actual application field of the multipole expansion method has been enlarged

    關於二維擾動流場的求解：將通常僅適宜求解具有對稱形狀二維物體擾動流場的多極展開法（保角變換方法）擴展至非對稱形狀二維物體，給出了任意形狀二維物體的輻射和繞射流場的速度勢及水動壓力的頻域解，進一步擴大了多極展開法的實際應用范圍。
  4. Our study shows that the optical potential of the diffracted light of the semi - gaussian beam is far higher than that of the evanescent - light wave, and its maximum normal velocity of the incident atoms can be far grater than that of the evanescent - light wave under the same parameters, so the blue - detuned semi - gaussian beam, as a novel atomic mirror, can be used to efficiently reflect atoms with a normal velocity of greater than 1 m / s

    研究表明，半束蘭失諧高斯光束衍射光場的光學勢遠大於消逝波光場的光學勢，在同樣的參數條件下，入射原子的最大速度也比消逝波光場的大，所以作為一種新穎的原子反射鏡，半束蘭失諧高斯光束可以被用來有效的法向速度大於1m s的入射原子。
  5. Because of the slower speed of economic increasing in the world, the usa securities market has enron case too. so how to percept and standardize securities market is an arduous task

    隨著世界經濟增長速度的放緩，諸如美國這種成熟證券市場也出現了「安然黑幕」 ，並大有燎原之勢。
  6. However, some markets of the automobile will come into comparative satiation before long according to this increasing currentness coupled with the limitations of the city facilities and the cost. the volume of consumerism will decline, the higher and higher quality demand of the consumers will become more important

    但是，照現在的增長勢頭，加上客觀上受到城市基礎設施和使用成本的局限，也許並不需要太長的時間，局部汽車消費市場就會率先進入相對成熟期，汽車消費增長的速度就會放緩，消費者意識將更趨理性化，客戶對于全方位服務的要求也會越來越高。
  7. Both stalled in 2005, yet both have clocked up [ 2 ] house - price inflation of around 10 % in the past year

    2005年兩個市場均漲勢受阻，但過去一年房價增長速度均達到10 %左右。
  8. Then a new attractive force function and a new repulsive force function are deduced, which the robot can adjust its velocity to escape from obstacles, and move to target quickly, or track target synchronously

    在新的勢場函數作用下機器人能夠快速調整自身的速度大小和方向，使其快速脫離障礙物的威脅並能快速地到達目標或追蹤目標。
  9. The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade

    葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。
  10. Hong kong and its investors are well - positioned to seize the opportunity afforded by our unique geographical situation, our distinct economic system as separate from the mainland, our highly - developed communication system and access to energy resources and raw materials by tapping the vast market in the mainland, co - ordinating mainland ' s expertise and resources in science and technology, and making use of mainland ' s solid industrial foundation, hong kong can effectively develop its capital - intensive investment, highly technological and high value - added industries, as well as speeding up technical renovation and transformation and improving international relations

    香港以及投資者大可藉此機會，運用香港獨特的地理、有別于內地的經濟制度、信息系統高度發展、進口能源和基礎原材料方便快捷等優勢，結合內地的市場、內地的龐大的科技人員隊伍和力量，以及內地的工業基礎，在高科技投入、高技術含量、高附加值、高速度更新換代和高國際聯系等方面大做文章。
  11. In the case of tight financial situation, key investment ca n ' t be used in key positions. luzhong mining company adopts traditional stock management as " coping with things ", with " three grades " management, handwork operation, careless management, a very lengthy process and massive structure, so it is impossible to react efficiently to manufacturing needs and outside information changes. therefore makes it hard to control stock and capture profit

    魯中礦業集團公司採取傳統的「應付情況」的庫存管理方式， 「三級」管理，手工操作，管理粗放，機構龐大，業務流程冗長，在日益加劇的市場競爭中，不能對生產需求和外界信息及時有效地做出反應，速度慢，效率低，難以進行有效的庫存控制和捕捉獲利的機會，資金大量積壓，經濟效益差，在市場競爭中不佔優勢。
  12. Besides, improving the social environment of honesty and trust, clearing the property rights will help reduce credit rationing. on the macro - level, the following conclusions are drawn. the speed of economic growth will slow down owing to credit rationing ; over - borrowing, which is the other side of the coin, will bring a lot of negative effects to enterprises ; the flowing of credit capital from vulnerable market to advantageous market will reduce the welfare of the whole society, and enlarge the gap between these two kinds of markets, which will make the financial system much more fragile

    論文分析了信貸配給在宏觀層面的影響，指出：信貸配給延緩了經濟增長的速度；過多借款與信貸配給現象是一個硬幣的兩面，過多的借款會撐死企業；遭受信貸配給的市場和未受信貸配給的市場並存會造成貧富不均的社會問題；信貸資金從弱勢市場向強勢市場的流動將使整個社會的福利受損，使兩個市場間的投資邊際回報差距更加擴大，從而使整個金融體系更加不穩定。
  13. The model includes three aspects ( 1 ) objective : aspect. regional leading industry choice ( 2 ) criterion aspect : comparative advantage criterion, industrial relationship criterion, technology advancement criterion, market potential criterion ( 3 ) norm aspect : location quotient, comparative labor productivity, comparative fund profit and tax rate, area ’ s added value proportion, industrial influence coefficient, industrial sensitivity coefficient, technology advancement speed, technology progresses contribution rate, growth rate, demand income elasticity

    模型共分三層:目標層? ?區域主導產業選擇;準則層? ?比較優勢基準、產業關聯基準、技術進步基準、市場潛力基準;指標層? ?區位商、比較勞動生產率、比較資金利稅率、區內增加值比重、產業影響力系數、產業感應度系數、技術進步速度、技術進步貢獻率、增長率、需求收入彈性。
  14. In this thesis, the steady performance of ducted propeller in uniform flow is predicted by surface panel method

    本文應用基於擾動速度勢的低階面元法，擬計算導管螺旋槳在均勻流場中的定常水動力性能。
  15. In this paper, first, the study of the distribution of electromagnetic field, energy, power, reflection coefficient and transmission coefficient in waveguide with piecewise different dielectric constants are studied. then, the behavior of propagation of am signal and gauss pulse signal through the waveguide are simulated by magic code ， and the plots of electromagnetic field, energy, ponyting vector and their spectrums at different time and different position are obtained. and, the group velocity and energy velocity of wave packet through barrier are calculated

    從90年代開始， emig和martin 、 landauer等人研究了分段填充不同介質的波導中的電磁脈沖的傳播。在本論文中，作者首先推導出分段填充不同介質的波導中的電磁場分佈、能量、傳輸功率以及反射系數和傳輸系數的表達式，然後，採用magic程序模擬了這種波導結構中電磁波的傳播情況，得到了在不同時刻和不同位置處的電磁場分布圖、能量圖、坡印廷矢量圖以及它們的頻譜圖，並由模擬結果計算了波包穿越勢壘的群速和能量速度。
  16. The cosmetic trade in china has come through a very fast development period since 1980s, and now the increase speed rate keep in 12. 9 % a year. with the opening market and china entering into world trade organization ( wto ), the global cosmetic companies, chinese cosmetic companies are all want win in china which is one of the most largest consumer market. therefore, it is most important for cosmetic brand that to keep the competition advantage in the market in china

    化妝品行業在中國的發展經歷了一個快速增長的過程，並且這個增長還保持了每年12 . 9的增長速度，在中國進入wto以後，國際、國內的化妝品公司或是行業的新進入者都看好中國這一化妝品的最大消費者市場，因此，怎樣保持品牌的競爭優勢就成為迫在眉睫的問題。
  17. Chapter 2 discusses the characteristics of ethernet, then introduces a kind of priority control method into ethernet that makes its feasibility in industrial automation network. at last we conclude that issues that prevent ethernet from being used hi real time control environments have now been resolved. its presence at the control level will facilitate the information integration from sensor level to management level

    第二章論述以太網的特點，將一種優先級控制引入以太網，討論它在工業控制網路中的可行性，指出隨著以太網在確定性、速度和優先法則等方面性能的進一步提高，阻礙以太網應用於實時控制環境的難點即將被解決，它應用於現場設備控制層是控制網路發展的趨勢，將會極大地促進信息從傳感器到管理層的集成。
  18. With its smaller volume, lower price and better anti - jamming, singlechip have been widely applied in modern control system operating scene which have been put in collecting data in order to achieve shop floor control. the pic singlechip which is made by microchip co. in the u. s. a, with its risc architecture, high price verse performance ration, high speed, has been working in low voltage, lower power depletion, higer driving power, lower price otp technology and smaller volume, has been represents a new trend in the microprocessors ; as a transmission media, sms ( short message service ) which is a basic service in the gsm network, with its lower price and high reliability, has become important media in people ’ s daily life and trade communication ; led ’ s panel which has been applied in publishing the news and advertising in the enterprise is a control technic, a photoelectricity technic, communications technic, digital - image processing technic all rolled into one

    單片機以其體積小、價格低、抗干擾性好等特點，在現代控制系統中常用在操作現場進行數據採集，以及實現現場控制。 pic單片機系列是美國microchip公司推出的，採用risc結構的高性價比嵌入式控制器，其高速度、低電壓工作，低功耗，強大驅動能力，低價otp技術，體積小巧等都體現了單片微控制器工業的新趨勢;作為信息的傳輸媒體， sms短消息服務是gsm網路的一種基本業務，以其低成本、高可靠性的方便快捷通信方式成為人們日常生活和商業交流的重要載體;集控制技術、光電技術、通信技術、數字圖像處理技術於一體的led電子顯示屏為企事業的信息發布和廣告宣傳提供了廣闊的便利。
  19. In this thesis, the fields of velocity in the area near the wall and the core area are discussed in stress. thinking about the fluctuate characters of flow in cfb boiler, the rules of particles flow is summarize according to macro analysis

    文中著重對近壁區和中心區的速度場進行了討論，分析了不同的工況條件下，顆粒的速度變化趨勢，結合循環流化床流動的脈動特點，從宏觀上總結出顆粒流動特性。
  20. Then a laplace equation can be deduced and through computation, the blade profile coordinates and geometry of the cascade result from an analytical solution. next, an optimization method, taking the geometry parameters of the unclosed profile as its objective functions, is used to obtain an optimized blade profile. and last, the optimized profile is refined with round arcs added in the leading and trailing edges

    本文採用的勢、流函數解析法法中，將無旋方程用新的類無旋方程替代，這樣在計算域上得出速度場的解析關系式，計算得出初始葉型；然後以此初始葉型的幾何參數，例如前尾緣的封閉程度和葉型彎角等為目標函數，通過優化程序對初始速度進行自動調節直到目標函數值最小為止。
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