逆推力 的英文怎麼說

中文拼音 [nìtuīlì]
逆推力 英文
backward thrust
  • 逆 : Ⅰ形容詞1 （方向相反） contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 （抵觸; 不順從） go aga...
  • 推 : 動詞1 （向外用力使物體移動） push; shove 2 （磨或碾） turn a mill or grindstone; grind 3 （剪或削...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 推力 : visatergo; soot; propulsive force; thrust; momentum thrust
  1. The concept called parallel macro - micro robot is presented. two kinds of optimal disposing methods of the cables ? tensions are used to build the inverse kinematics model of cable and cabin system. the error compensation model of the fine tuning stewart platform is deduced

    本章提出了並聯宏-微機器人的概念及基於懸索張力均勻原則和懸索系統勢能最小原則的兩種索張力優化配置方案，並在此基礎上建立了並聯懸索系統的逆運動學模型，推導了動基座stewart平臺的誤差補償模型。
  2. Focused on " understanding media ", the article analyses in chapter i the key media theory of employing what could be of mcluhan in a thoughtful angle ， and advances the viewpoint of " human being - the extending of media ? ". in chapter ii 、 in the following third part ， the idea of " media ' s endding " is expounded and demonstrated ， which is composed of three parts ： extreme of speed ， content of the content ， and human being ' s last extending - the extending of central nerves 。 in the final part ， the general conclusion ? ? electronic media ' s influence on human behavior is given ， that is human are under universal narcissism and pacing to the bottom of it impelled by electronic speed. the article has five original points in it ： first of all, in virtue of " content theory " ， it analyzes the theory of " meida equals to information " by mcluhan from a scale theory stand. secondly, the tremendous power of electronic media is emphasized from an implosion view. in the third point, the article advanced originally that, after extension of central nerve system, human themsevels reverse to an extension of media and turns into a node of it ; at the same time, the article proposes that, all extensions before that of central nerve are " controllable extension ", however, it reverses to " uncontrollable extension " while extending ; then the authur put forward for the first time that, the concernful reason obsessing human is the failure of their in - body central nerve system " s jointing and controlling on out - body central nerve system naturally. 。 the fourth point is, the article demonstrates systematically the idea of " media ' s endding " from three levels solely by thoughtful means, and this is the most revolutionary point of it all

    論文的創新之處有五點：一是從「尺度論」的角度，藉助「內容論」來解讀麥克盧漢的「媒介即訊息」的思想；二是從「內爆」的角度突出電子媒介的巨大力量；三是獨創提出在電子媒介時代，人類延伸了自己的中樞神經系統之後，人類本身被逆轉為媒介的延伸，成為電子媒介的一個節點；同時在本章節中提出中樞神經延伸之前的所有延伸為「可控延伸」 ，而中樞神經被延伸時「可控延伸」逆轉為「不可控延伸」 ，並首次提出，困擾人類種種問題的重要原因是體內的中樞神經系統無法無縫地對接和控制被延伸出去的體外中樞神經系統；四是獨自運用思辯的力量從三個層面綜合論證了「媒介的終結」的觀點，此處論證為本文最大創新之處，而此結論也將具有重大的理論與現實意義；五是根據以上幾個部分的論述，對人類目前的總體狀態作了一個定性的判斷，即：我們這個時代的迷惘在於我們深陷於自戀的漩渦里難以自拔，在電子媒介以其固有的電力速度的推動下，我們走向自戀的盡頭。
  3. We sixth, namely last the responsibility, is responsible for the shareholder, the company certainly must make a profit the growth, must breed the reserve fund, must conduct the research, the development has the risk spirit the plan, pays the wrong price, must prepare in advance for the adverse circumstance, pays the suitable tax money, purchases the new machine, the building new workshop, promotes the new product development new sale plan, we must test the new conception, we after this all responsibilities, the shareholder should obtain the fair return rate, we were determined under the mercy god assistance, we biggest strength completes these duties

    我們的第六個即最後一個責任，是對股東負責，公司一定要獲利成長必須孳生準備金必須進行研究，開發有冒險精神的方案，支付錯的代價，必須為逆境預作準備，支付適當的稅款，購買新機器，建築新廠房，推出新產品開發新的銷售計劃，我們必須實驗新的構想，我們盡到這一切責任后，股東應該得到公平的報酬率，我們決心在慈悲的上帝協助下，盡我們最大的力量完成這些義務。
  4. Based on the equilibrium equation, the states of self - stress and the modes of inextensional mechanisms are solved by the singular value decomposition method. and the equilibrium equation can be solved by the generalized inverse method. the force density method is proposed

    在建立空間桿件體系平衡方程的基礎上，採用廣義逆方法求解各種情況下的平衡方程，採用奇異值分解方法求解索桿的機構位移模態和自應力模態，並推導了力密度方法的基本公式。
  5. And then, the error matrixes of location and kinemics of the end point, and the on - line error compensation method are given based on robot ' s dynamics. finally based on puma robot, three simulation examples are given respectively ; the first is about the location error and on - line location error compensation, the second is about the kinetic error and on - line kinetic error compensation, the third is about location and kinetic errors causing by robot ' s dynamics and the on - line error compensations. the simulation results show that : a ) location error of the end point based on elastic deformation of the sensor will be about millimeter ' s degree under the permitting load, b ) the on - line error compensation methods given are available

    第三章首先概括了目前機器人連桿慣性參數識別的四種方法，總結這些方法的優、缺點；指出這些方法存在的問題是：或者需將機器人解體，不能在線進行參數識別，或者不能給出機器人連桿獨立的慣性參數值，只能獲得慣性參數的組合值，而這些方法的共同問題是：不能考慮機器人連桿的關節特性；本章提出了一種基於腕力傳感器的機器人末端連桿慣性參數在線識別方法，給出了該方法的理論計算和推導；研究提出了以腕力傳感器輸出為前提的、基於newton - euler動力學的機器人動力學正向、逆向遞推公式；針對機器人負載參數辨識必須在線、實時的特點提出了基於腕力傳感器的負載參數在線識別方法，給出了負載參數識別的步驟。
  6. Experiment result proved, relative to complicated structure and hig h request for laying wiring of zvs series resonant full - bridges, push - pull class - e amplifier is expected more suited for high frequency high - power output ability relatively, which is suitable for popularizing

    實驗證明，相對于結構復雜，布線要求較高的全橋串聯諧振逆變器，推挽式雙e類放大器具有更高頻率和較大功率的輸出能力，適于推廣一。
  7. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  8. A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path

    本文對兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討，在對平面運動物體運動分析的基礎上結合四種常用車輪的數學模型，推導出了一個通用的移動機器人堆積方程，在此基礎上分析了移動機器人的移動能力、並針對兩輪差速構型推導了速度正解與逆解；使用muir和newman的運動學建模方法，推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法；在移動機器人位姿識別方法中結合差速驅動構型對航位推演算法進行了分析：推導了一種理論精度較高的航位推算演算法，並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬；最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路，較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題；本論文研究成果已在本實驗室所開發的樣機上得到實現，經過應用與考核證明其中的分析與設計是切實可行的。
  9. But as development at full speed in car industry, every large car manufacturing company set up the enterprise group, and has set up corresponding or wholly - owned or controlling or participating shares company around the single car brand, because of scattering of the property right, make every large car manufacturing enterprise group company present the question of centralization or fraction of state power too in marketing function. therefore derive it to the problem of how to make a positioning of marketing function on two aspects of enterprise group companies and brand companies

    營銷管理從本質上說應該是基於顧客價值的「拉」式過程，而不完全是基於企業自身能力和資源的「推」式過程，本文則是基於顧客價值理論，試圖用一種全新的視角從顧客價值分析入手，逆向推導營銷職能在汽車製造企業集團公司和品牌公司兩個層面的定位，並以第一汽車企業集團公司作為實證應用的藍本，根據理論探討總結出的營銷職能定位內容，為企業兩個層面的營銷職能定位做出了基本設想。
  10. The forces behind this “ are irresistible ”, he says. “ the genie ' s out of the bottle and there ' s no stopping it

    這一模式背後的推動力是「不可阻擋」的，他說， 「箭已離弦，時勢不可逆。 」
  11. This paper deals with the following three topics with regard to the control of multiple manipulators : 1. deprive the kinematics and dynamical equations of two manipulators with identical structure on the basis of geometry theory, one of which has two links, giving the inverse solution to the kinematics of the system which consists of the manipulators and the grasped object ; 2. by use of load - distributing, design a controller coordinating multiple redundant manipulators whose parameters are known

    基於微分幾何理論推導出兩個具有相同結構的二連桿機器人的運動學逆解及與物體所成系統的動力學方程； 2在假設由多個冗餘機器人與物體組成系統的動力學模型確知的前提下，利用負荷分配法，設計了一種不僅能使關節力矩優化且能按照一定比例分配負荷的控制器，解決了以往控制器的一些缺陷，即忽視各個機器人的實際承載力，導致一些負荷力小的機器人卻必須承擔較大的負載，最終損壞機器人； 3
  12. The consistent mass matrix for the assembled element was derived to transform the dynamic equation to the generalized eigenvalues problem that can be solved using the inverse iterative method. moving frequency technique was also adopted in the calculation

    本文還推導了組合單元的一致質量陣，將動力學方程轉化為廣義特徵值問題，用逆迭代法求解，並在計算中採用「移頻」技術，對潤揚懸索橋和青馬大橋進行了振動計算。
  13. For researching the flight test techniques of thrust vector controlled aircraft, dynamic models of thrust vector controlled aircraft were established, four post stall maneuver control laws were designed with the dynamic inverse method, tested and investigated according to a standard evaluation maneuver set ( stems )

    摘要為研究推力矢量飛機的試飛技術，建立了推力矢量飛機的動力學模型，用動態逆方法設計了4種過失速機動控制律，並在地面飛行模擬器上參考標準評估機動動作集（ stems ）進行了飛行模擬試驗研究。
  14. Some stiffness matrices of special elements such as rubber bearings and components with field are derived from primary - secondary and inverse transform in structural matrix analysis. then, seismic response analytical models and non - isolated continuous rigid frame bridges are set up, while considering the interaction of soil - pile - structure and traveling wave effect simultaneously. finally, the seismic time history response of the two models is calculated by means of the finite element method, and the results show that the isolated bridge posses powerful earthquake resistance

    首先論述了公路大跨徑橋梁的地震反應分析方法，其中包括樁-土-結構相互作用、行波效應等因素對結構物的影響；其次，利用結構矩陣分析中的主從變換和逆步變換，推演了幾個特殊單元的剛度矩陣，包括橡膠隔震層單元和帶剛域構件單元；最後，考慮樁-土-結構相互作用和行波效應的結合，分別建立隔震與非隔震連續剛構橋地震反應分析模型，通過有限元法對兩種結構進行時程分析，結果表明：隔震層上部結構的地震加速度反應、位移反應均明顯減小，這說明隔震的連續剛構橋具有很好的抗震能力。
  15. Owing to the reasonable arrangement of resources economic resources advantages " mutual supplement of individual country as well as other outstanding merits, world economy unifying has become an unchangeable tendency. and being the result of internationalizing of producing and capital, multinational company is no doubt its main improving factor

    鑒于資源的合理配置、各國經濟優勢互補等突出的優點，世界經濟一體化已成為不可逆轉的趨勢，而作為生產與資本國際化產物的跨國公司是其發展的主要推動力之一。
  16. In chapter two, the direct and inverse piezoelectric effect of piezoelectric ceramic are studied, and the piezoelectric equation of piezoelectric ceramic is deduced

    分析了壓電陶瓷的力學和電學性能，闡述了它的正、逆壓電效應，推導了壓電陶瓷的壓電方程。
  17. The risk of structural fiscal imbalance must not be casually overlooked. if we are to escape the fate of having sustained deficits year after year, we must depend on the ability of the people of hong kong to rebound from economic adversity with just a little help from the government. if not, hong kong will have to face great reductions in expenditure and or significant tax increases in the next two years

    現時本港經濟處于低潮，財政長期不平衡的風險，不容忽視，若要逃過長期開支不平衡的赤字宿命，實有賴港人本身的逆境反彈能力，政府投資所帶來的信心推動，才能在未來2年逃過必須大幅緊縮支出或加稅的命運。
  18. In july 2 01, he visited the chinese university as wei lun visiting professor and delivered a public lecture on the recent developments of chinese hybrid rice. during his visit, he expedited and further materialized the research collaboration with professor samuel sun and professor lam hon - ming of the department of biology at the chinese university, and professor maurice ku of the school of biological sciences at washington state university on an genetic enhancement programme of chinese hybrid rice to further improve the grain yield, quality and stress resistance of the super hybrid rice for the 21st century

    袁教授於今年七月訪問香港中文大學，擔任偉倫訪問教授，主持公開講座介紹中國雜交水稻的最新發展；期間，袁教授與香港中文大學生物系辛世文教授、林漢明教授及美國華盛頓州立大學生命科學學院古森本教授落實共同進行一項大型合作研究計劃，通過引入先進生物科技和破解水稻的遺傳基因密碼，結合傳統育種技術，進一步提升中國雜交水稻的產量、質量及抗逆的能力，推動二十一世紀中國雜交水稻的改良工程。
  19. In order to further increase the yield of hybrid rice as well as enhancing its quality and stress tolerance, professor yuan is conducting a research collaboration with professor samuel sun and professor hon - ming lam of the department of biology at the chinese university of hong kong, and professor maurice ku of the school of biological sciences at washington state university. with the help of advanced biotechnology and recent progress in the decoding of rice genome, together with traditional breeding techniques, the collaborating team aims to develop enhanced chinese hybrid rice for the 21st century

    為進一步提升中國雜交水稻的產量、質量及抗逆的能力，袁隆平教授與香港中文大學生物系辛世文教授、林漢明教授及美國華盛頓州立大學生命科學學院古森本教授正進行一項大型合作研究計劃，通過引入先進生物科技和破解水稻的遺傳基因密碼，結合傳統育種技術，推動二十一世紀中國雜交水稻改良工程。
  20. It is concluded that non - structural reservoirs will be major types of prospecting ; the slope belts with high swells are of conditions for forming large - scale stratigraphic reservoirs ; in complex piedmont thrust nappe there are many targets and high potentials for exploration ; jundong ( eastern junggar ) area and around wulungu depression are not " dead areas of hydrocarbon generation ", they should be regarded as favorable backup positions of prospecting

    非構造油氣藏將是下步主要的油藏勘探類型，高凸起的斜坡帶具備形成大型地層油氣藏的有利條件，復雜山前逆沖推覆構造帶勘探目標多、潛力大，環烏倫古坳陷及?東地區並非「生烴死亡區」 ，也是有利的后備勘探陣地。
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