水能動力學 的英文怎麼說
中文拼音 [shuǐnéngdònglìxué]
水能動力學
英文
hydrodynamics-
For example, it can enter human body to inspect inner organ, deliver drug to assigned spot and operate local body surgery. supported by the nation nature science foundation of mechanism, structure and control study on swimming micro robot in liquid ( item no. 69885002 ) and guangdong province science foundation of research on swimming micro robot in liquid ( item no. 980402 ) and guangdong province education department foundation of research on micro pipe robot driven by liquid self energy ( item no. 010043 ), this dissertation mainly study on the designing and manufacturing of swimming micro robot and its swimming performance, building up and analysing the dynamic model, natant problem of swimming micro robot and controlling the swimming velo city
本論文得到國家自然科學基金項目「泳動微機器人的機理、機構和控制」 (項目資助號: 69885002 ) 、廣東省自然科學基金項目「液體中泳動微機器人的研究」 (項目資助號: 980402 )和廣東省教育廳基金項目「基於流體自身能量的微管道機器人研究」 (項目資助號: 010043 )等的資助,主要對在液體中運動微機器人的國內外研究現狀、水生生物推進機理及其對泳動微機器人研究的借鑒和啟發作用、泳動微機器人的設計與製作、微機器人動力學模型的建立與分析、微機器人的自主浮遊與泳動速度控制等方面進行了大量的理論與實驗研究。The sampling test and aeromechanics experiment provers that the new formula is able to exactly draw the suitable angle for every shot - putter
抽樣檢驗和空氣動力學實驗指出,新公式能夠準確地描述出高、中、低各種水平鉛球運動員的適宜出手角度。The hydrodynamic parameters and mass transfer coefficient are studied in the internal loop airlift bioreactor used in treating wastewater. the hydrodynamic parameters consist of gas holdup, liquid velocity and axial dispersion coefficient
本文從流體動力學和傳質動力學兩個方面考察了用氣升式內環流生物反應器應用於廢水處理的性能。The results showed that the combination of both capillary absorption and moisture diffusion fitted the experimental data very well, pore structures of cement - based materials had great effect on the kinetics of water transport in the materials
結果表明:只有結合毛細吸收和擴散2種傳輸過程才能很好地表徵水泥基材料內部的水分傳輸過程,材料內部孔隙結構時水分傳輸的動力學過程有很大的影響。The basic mechanics knowledge in bridge construction is involved to the basic knowledge in many branches such as theoretical mechanics, structural mechanics, material mechanics, flexible mechanics, structural dynamics, earth mechanics and hydraulics mechanics etc. to show the reason of research thinking of this paper, the intersectional theory among engineering mechanics, engineering construction and engineering supervision is studied, it mainly include following content 1 ) framework and structure the framework is the system or structural frame that can produce action
2 、橋梁建設中的力學基礎知識涉及力學中的理論力學、結構力學、材料力學、彈性力學、結構動力學、土力學和水力學等諸多分支中的基礎知識。論文中對橋梁力學中的幾個概念進行了詳細的闡述,主要包括以下內容: 1 )機構與結構機構是指能夠產生運動的構架或體系。A mathematical model for the anode of a direct methanol fuel cell ( dmfc ) considering the mass transport in the whole anode compartment and the proton exchange membrane ( pem ), together with the kinetic and ohmic resistance effects through the catalyst layer is developed. the influences of key parameters on methanol crossover and anode performance are investigated
對于dmfc的陽極,本文描述了甲醇和水在陽極及質子交換膜( pem )中的傳遞過程、反應動力學和歐姆阻抗效應,建立陽極和pem的數學模型,並探討對甲醇擴散和陽極性能影響的主要因素。This approach has shown particular promise with the cobalt ( iii ) - salen - catalyzed hydrolytic kinetic resolution of chiral epoxides, a highly selective reaction of interest because of the versatility of epoxides as precursors to pharmaceutically important targets
因為多功能性的環氧化合物在醫藥上是重要目標分子的前體,這個方法在高選擇性反應- -鈷( iii ) -沙林試劑催化的手性環氧化合物的水解動力學拆分上特別引人注目。It can be materialized through two basic aspects, that is, learning motivation and learning behavior
這一能力水平主要通過學生的學習動力、學習行為兩個基本方面來體現。For understanding the dynamic processes of the all scales cloud systems of mei yu, and the relationship between mei yu system and the summer monsoon of eastern asia, the hubex has been carried on by the cooperation of china and japan in summer since 1998. the data observed by hubex, the data observed by other monsoon experiments and the general data ( gts data ) were merged into the assimilation system of game and made into the game reanalysis data, so how the game reanalysis data
為了更好地理解梅雨鋒區多尺度雲系的能量與水分循環過程以及他們與地面水文過程的相互作用,從而搞清梅雨區雲系的多尺度動力學及其與東亞季風的關系, 1998年夏季中日合作開展了淮河流域能量與水分循環試驗( hubex ) ,該試驗和game其他試驗的探空加密觀測資料作為原始資料的一部分經過同化分析,得到了game再分析資料。1 ) the principles of various rotary - type transplanting mechanisms of high - speed rice transplanter had been studied, and the subjects for further research - - studying their dynamics characteristics to improve their dynamics performance and further to enhance the efficiency were put forward. an innovative idea of two - stage - optimization for dynamics analysis was presented in the paper. the creativity of the idea was that the kinematics optimization ( first stage optimization ) results were the constraint for dynamics optimization ( the second stage optimization )
本文主要的研究內容和結果如下: 1 )研究國內外各種類型的旋轉式高速水稻插秧機分插機構的工作原理,指出尚待研究的問題? ?研究其動力學特性,以改善動力學特性,進一步提高插次;為此提出了動力學兩級優化的創新性思路? ?以運動學優化( 1級優化)得到的機構參數范圍作為動力學優化( 2級優化)的約束條件,最終得到的最佳參數不僅能滿足運動學的要求,又具有最佳的動力學特性。Funded by the national natural sciences foundation of china, prof. zhao yun of zhejiang university had invented 5 rotary - type transplanting mechanisms. all of them could meet the demands of locus and pose ( angle of seedling - separating and angle of seedling - pushing ) of rice - transplanting. but the dynamics characteristics of these mechanisms had not been further studied yet
浙江大學趙勻教授先後研究並發明了5種水稻插秧機的分插機構,它們都能滿足各種水稻栽插的軌跡和姿態(取秧角和插秧角)的要求,但對這些機構的動力學特性未做進一步深入基礎研究。The main point can be summarized as follows : a low - temperature elemental - direct - reaction route to nanocrystalline cdse and znse, and further more, by using the newly produced se with high reactivity as reactant, a controllable synthetic route named " selenite reduction hydrothermal method " have been developed
在合成新途徑的探索方面,從發現了水熱元素直接反應法,發展到亞硒酸鹽水熱還原法,提出了化學調控合成的新概念,為液相中金屬硒碲化合物的合成提供了可能的動力學調控手段和方法。Zirconium alloys are employed extensively in light water cooled reactors ( lwr ) as the cladding materials of fuel elements and other structural materials because of the low capture cross - section for thermal neutrons, good resistance to water - side corrosion at elevated temperature, adequate mechanical properties and high thermal conductivity
由於鋯的熱中子吸收截面小,並具有優異的耐高溫水腐蝕性能、良好的綜合力學性能和理想的熱導率,因此,鋯合金被用作核電站水冷動力堆核燃料元件的包殼材料和堆芯的其它結構材料。The hemodynamic change induced by embolization of the cerebral arteriovenous malformation was analyzed using the water hammer principle. the highest pressure that can be reached when the water hammer phenomenon occurs was calculated. the acute instantaneous pressure rising may be an important factor leading to intracranial hemorrhage or swelling when the avm is embolized. it is shown that long feeding artery of avm will increase the possibility of direct water hammer, and high wall shear stress of feeding artery will increase the water hammer pressure. this suggests that such kind of avms should be embolized stepwise and the systemic pressure should be rationally reduced before embolization
以水擊原理分析了腦avm栓塞治療時血液動力學變化過程,計算了瞬時水擊壓力可能達到的最高值。瞬時增高的水擊壓力可能是avm栓塞時發生急性腦出血或腦腫脹的重要血液動力學因素。而avm供血動脈血管壁面切應力偏高和供血動脈過長可增加水擊的危險程度,提示對這類結構avm栓塞治療時應採取合理的降壓措施並盡可能分多次栓塞。The results should be improved by reconsidering the boundary conditions. the research is useful for hydrodynamic calculation of the submerged body by using cfd technique
本論文的研究為用計算流體動力學( cfd )方法預報潛體的水動力性能打下了一定的基礎。It is a reliable instrument for the measurement of the coherent structure in turbulence. an improved 2 - d ptv was developed based on previous research experiences, which can be used to measure the trajectories of particles motion. for the experimental study on the particle motion in the dilute solid - liquid two - phase flow, especially for the motion characteristics and dynamic characteristics of coarse particles in water, this kind of system was proved to have great advantages
利用該系統可獲取大量的統計樣本並進行計算機快速分析,為明槽紊流相干結構的試驗研究提供了一種嶄新的測量手段;在前人工作的基礎上,開發了一種能夠測量水流中顆粒運動軌跡的ptv系統,該系統具有可靠的精度,能同步測量全剖面的顆粒瞬時運動信息,為顆粒運動特性及動力學特性的試驗研究提供了強有力的手段。The main features in the study of flood forecasting and control system are as follows : ( 1 ) runoff generating and confluence theory and hydro - dynamic method are adopted to predict the water level of taihu lake and key nodes, the basin wide forecasting and control system with the function of real time correction has been first established in plain river network to meet the complicated flow conditions of taihu lake basin and to enhance the reliability of forecasting results ; ( 2 ) according to the rainfall in foreseen period multiple schemes can be made in the forecasting model and adjusted with time, which overcomes the errors caused by the uncertain rainfall in the foreseen period so as to make the forecasting results approach reality
本文所研究的預報調度系統有如下特點: ( 1 )本系統採用產匯流理論和水動力學方法預報太湖及重要節點水位,首次在平原河網地區建立了具有實時校正功能的全流域預報調度系統。以適合太湖流域復雜的水力條件,增強預報的可靠性; ( 2 )預報模型可以根據預見期降雨量進行多方案預報,並隨時間推移,可以實時進行調整,克服由於預見期降雨不確定引起的誤差,使預報結果更接近實際。The cell is used to investigate the immobilization kinetics and the water retention of paper coatings
該元件用於研究紙張塗料的固定動力學和保水能力。In practical projects, the boundary shape irregularity of the lake, reservoir, river and estuary area and the non - linear character of hydrodynamic equation make it difficult to get the theoretical solution of the equation, so the numerical solution has to be the only a choice
由於實際工程中湖泊、水庫、河流、河口區域邊界幾何形狀的不規則,以及水動力學方程的非線性性質,使得理論分析解難以作出,只能求助於數值解。Numerical prediction of ship hydrodynamic performance at design stage using computational fluid dynamics ( cfd ) technique is a most important and challenging subject in the field of ship hydrodynamics. with the rapid development of computational methods and computer technology, cfd is becoming a practical tool in ship design
採用計算流體動力學( cfd )技術實現在船舶設計階段對船舶水動力性能的精確預報,是船舶水動力學學科中一個具有重大理論和實用意義的、富有挑戰性的課題。分享友人