示蹤動力學 的英文怎麼說
中文拼音 [shìzōngdònglìxué]
示蹤動力學
英文
tracer kinetics-
Using trace kinetics to study the effect of heavy metal stress on the transportation and allocation of photosynthate in wheat
重金屬脅迫對小麥光合產物輸配影響的示蹤動力學研究Based on the last achievements in the field, a research on the dynamic mechanics properties of bha with bended screwdrill during rotary drilling was done. the research results reveal the dynamic mechanics properties of bha with bended screwdrill during rotary drilling
在國內外現有研究成果的墓礎上，對用螺桿鉆實施隱鉆跟蹤地質目標導向鉆並作業的特點及其鉆井時的滑動態、轉動態力學性能進行了分析和研究，揭示了導向鉆具在復合鉆進時的動力學特性。Based on chinese tracking and data relay satellite ( ctdrs ) in the future, the antenna pointing control and complex control theory of user satellite are studied deeply in this dissertation, which is funded by the improve item of dept. of astronautic engineering and mechanics ? “ the teaching demonstration of antenna pointing control system in tdrss ”. the main contents of this dissertation are consisted of the following parts : firstly, dynamics equation is derived using lagrange equation for user satellite, so as the kinetics equations of user satellite at the same time are expressed in the form with matrix differential equations that is suitable for attitude control system design and analysis
本學位論文結合航空宇航科學與技術學科研究生教學基地實驗室建設項目「中繼系統星間鏈路天線指向控制系統教學與演示實驗」 ，以我國跟蹤與數據中繼衛星系統為背景，對某型號用戶星星間鏈路天線指向跟蹤控制和復合控制理論進行深入的研究，研究內容主要包括以下幾個方面: 1 .利用lagrange方程建立了用戶星的動力學方程，同時推導了運動學方程，並將這組動力學方程以矩陣微分方程形式表示，使之適用於姿態控制系統的設計和分析。Abstract : two computational techniques for inverse fight dynamics, namely derivation - iteration and integration - iteration techniques, are investigated. the application of inverse dynamics to determine control power requirements for post - stall maneuvering is researched, and a maneuvering flight trajectory based algorithm is provided, which lays a numerical foundation for simplifying design criteria for post - stall aircraft. with the model of inverse dynamics employed, a flight control mode for the outermost loop of the control system, named maneuver generator, is designed to follow desired complicated maneuvering flight trajectories. an example of rapid heading - reversal maneuver and other numerical simulations show the feasibility of the algorithm and the design idea
文摘:考察了求解輸入類飛行逆動力學問題的微分-迭代與積分-迭代演算法;探討了利用逆動力學確定過失速機動操縱效能要求問題，這構成了進一步提出過失速機動飛機設計簡化判據的數值基礎;利用逆動力學設計機動發生模塊進行飛控系統的最外環控制，以便跟蹤期望的復雜機動軌跡.飛機最速反向示例及其它數值模擬結果表明設計思想與演算法是可行的The objectives of this study were : i ) to understand the mechanism of applying polyacrylamide ( pam ) to control crust formation, to increase infiltration and reduce soil erosion ; and ii ) to quantify the dynamics of soil erosion processes with rare earth elements ( ree ) tracers
本文的目的是研究利用聚丙烯酰胺（ pam ）作為土壤改良劑來抑制土壤表面結皮，增加降水入滲，減少土壤表面徑流，降低土壤侵蝕；同時採用稀土元素（ ree ）示蹤土壤侵蝕的動態過程，研究土壤侵蝕的動力學機理。分享友人