速度的分解 的英文怎麼說
中文拼音 [sùdùdefēnjiě]
速度的分解
英文
resolution of velocity- 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
- 的 : 4次方是 The fourth power of 2 is direction
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 解 : 解動詞(解送) send under guard
- 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
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And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media
以土力學模型為基礎,利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播,採用了顯式差分方法(中心差分法和newmark常平均加速度法結合)和透射邊界,通過比較利用幾種差分格式求解的加速度結果,發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用,分別編制了體波( p波或sv波) 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。Analysing the reasons of floating for objects in the reference system of non - inertia, the paper discusses the relationship between the depth and time, as well as the floating object and its acceleration, these relationships will provide convinient to explain some questions of the hydrostatics
摘要通過分析浮體在非慣性參考系中浮沉的原因,探討浮沉的深度與時間的關系、浮沉體積與加速度的關系,這些關系將給解釋一些流體靜力學問題帶來方便。The inverse kinematics of a space - based manipulator composed of three rigid bodies with prismatic joint are studied in the second chapter, and the jacobean matrix for space manipulator is derived by fully cartesian coordinates. a control method for space manipulator based on the resolved motion rate control concept is proposed
為此結合系統動量及動量矩守恆關系導出了以完全笛卡爾坐標表示的系統運動jacobi矩陣,並在此基礎上研究了帶滑移鉸空間機械臂的分解運動速度控制方法,給出了計算機數值模擬算例,以此證明了該方法的有效性。It is demonstrated by simulations that the control method is efficient and the fully cartesian coordinates is practically efficient. then the inverse kinematics of dual free flying space manipulator are mainly discussed in the third chapter, and the jacobean matrix for dual manipulator space robot is derived by fully cartesian coordinates, a control method for space manipulator based on the resolved motion rate control concept is proposed. then, the computer simulation verifies the effectiveness of the algorithm
首先,分析了閉環雙臂空間機器人捕捉目標物體時的運動學關系,給出了以完全笛卡爾坐標表示的系統運動jacobi關系;然後,以此為基礎研究了空間機器人雙臂協調操作的分解運動速度控制方法和協調操作問題;最後應用matlab語言對平面雙臂空間機器人系統進行了計算機模擬、模擬,模擬運算證實了上述方法的有效性。In this dissertation, we firstly prove that any dirichlet problem is indeed equal to a voltages problem of networks. we give five solutions to dirichlet problem in two dimensions ; among these five solutions, we prove that the iteration solution and the solution of relaxations are exponential convergence, then we estimate their respective convergence rates ; secondly, we discuss random walks on general networks, prove that there is an one to one correspondence between networks and reversible ergodic markov chains ; thirdly, we give probabilistic interpretation of voltages for general networks : when a unit voltage is applied between a and b, making va = 1 and vb = 0, the voltage vx at any point x represents the probability that a walker starting from x will return to a before reaching b ; furthermore, we study the relationship between effective resistance and escape probability : starting at a, the probability that the walk reaches b before returning to a is the ratio of the effective conductance and the total conductance
本文證明了任何邊值的dirichlet問題都可轉化為求解電路電壓的問題:給出了計算平面格點上dirichlet問題的5種方法:證明了迭代法和松馳法都是指數收斂的,並分別給出收斂速度的估計;討論了一般電路上的隨機徘徊,驗證了電路與可逆的遍歷markov鏈是一一對應的;給出了電路電壓的概率解釋:當把1伏電壓加於a , b兩端,使得v _ a = 1 , v _ b = 0時,則x點的電壓v _ x表示對應的markov鏈中,從x出發,到達b之前到達a的概率;進一步地,給出了逃離概率與有效電阻之間的關系:從a出發,在到達b之前到達a的概率為有效傳導率與通過a的總傳導率之比。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。In the fourth part, the writer analyses the factors which contribute to the slow - down of circulation speed of currency by establishing money circulation speed function in chinese transitional period and testing it empirically. the result of regression analysis indicates that income, monetization, resident saving ratio can explain the long decline of circulation speed of currency in chinese transitional period
在第四部分通過建立中國轉型期的貨幣流通速度函數並實證檢驗這些因素的影響效果來解釋貨幣流速的變化原因,結果表明模型的擬合效果較理想,收入、貨幣化程度、居民儲蓄率等因素能夠較好的解釋中國轉型期貨幣流通速度的長期下降。According to the observed experiments that the na2feo4 solution with the same concentration and volume were decomposed by the same area of different membrane, we learned the order of the decomposing rate of na2feo4 caused by different membranes : soapnated cellulose acetate > vinylon > polypropylene polyvinyl chloride = polyethylene microfiber glass mat
從觀察等面積的隔膜引起同濃度同體積的na _ 2feo _ 4溶液的分解實驗可知,不同隔膜材料引起na _ 2feo _ 4溶液分解速率從大到小的順序是,皂化再生纖維素膜維尼綸無紡布改性聚丙烯膜聚氯乙烯膜輻射接枝聚乙烯膜復合玻璃纖維氈。Secondly, i applied the method of matrix analysis to build up mathematic model of swaying platform, and solved the question of motion anti - solution, velocity and acceleration. then i analyzed the dynamics problems of the swaying platform. based on the calculation of the swaying platform ’ s force and moment, built up the dynamics equations of swaying platform by using virtual work principle
其次,應用矩陣分析和齊次坐標變換建立了搖擺臺的運動學數學模型,從反運動學的角度分析了搖擺臺的位置、速度和加速度的反解方程;分析了搖擺臺的動力學問題,通過對搖擺臺的驅動桿進行附加力和附加力矩計算,並利用達朗貝爾原理和虛功原理,建立了搖擺臺的動力學方程。4. achieved the high - speed colliding experiment of landslide for the first time, the paper studies the volume distributing ruler of different velocity segment after collide, fits the experiment data via extreme function, obtains the value range of the shape parameter, thereby gets the distributing function of all part of landslide after collide. on the base of above, the paper studies the accelerating effect of partial rock - mass because of colliding, and acquires the relation between accelerating volume and overall volume, and colliding velocity
( 4 )首次進行了滑坡巖體的高速碰撞模型實驗,研究了碰撞解體后不同速度段巖體體積的分佈規律,並應用峰值extreme函數對實驗結果進行了數據擬合,確定出了各形狀參數的取值范圍,從而得到了滑坡巖體高速碰撞后不同塊體的分佈函數,並在此基礎上研究了滑坡巖體碰撞後部分巖體的加速運西南交通大學博士研究生學位論文第2頁動效應,得出了獲得加速的巖體比例與滑坡總體積及碰撞速度的關系。And then, the influencing rule between the key factors to plug queue speed and working reliability of this set is ascertained, and the variety range of these factors is made, and the theoretic analysis correctness is validated by a great deal of experiments, and the key problem of improving the transplanting speed is solved
進一步通過對其關鍵部件的運動和受力情況分析,掌握了各主要工作參數對缽苗排隊速度和工作可靠性的影響規律,確定了各工作參數的工作范圍,並通過大量試驗驗證了理論分析的正確性,解決了提高栽植速度的關鍵問題,為其實用化打下了基礎。The flow equations are solved using finite difference technique. using body - fitted curvilinear coordinate system treated the boundary conditions. by iteratively solving the flow governing equation and the blade equation, the design of axial flow pump impeller in the quasi - three - dimensional rotational flow can be performed according to the angular momentum distribution, the blade which was designed in the lifting method, flow channel and the blade thickness given
其次在流動無粘性、不可壓及考慮葉片厚度的條件下,依據葉輪內的流動特性,推導了葉輪內三維流動周向平均流動控制方程以及葉片方程;在貼體坐標系中,採用有限差分法求解流動方程和葉片方程;在採用升力法設計出的葉片作為初始葉片、給定葉片速度矩分佈、葉片厚度分佈和葉輪軸面流道幾何形狀條件下,迭代求解流動控制方程及葉片方程,實現了軸流泵葉輪的準三維方法設計。The system can generate three - phase spwm pulses and has following characters : the range of modulation frequency is from 0 khz to 4 khz. and can be divided to 7 classes to control. the carrier frequency may be selected up to 24 khz, and can be divided to 8 classes to control ; rotational frequency is defined to 16 bits
該系統能產生三相六路正弦脈寬調制( spwm )波形;調制頻率范圍為0 4khz ,分7級控制; 16位的速度控制解析度;載波頻率分8級控制,最高可達24khz ;系統介面兼容intel系列和motorola系列單片機;該系統控制簡單、精確,易修改,可現場編程;同時具有脈沖延時小、最小脈沖刪除、過壓和過流保護功能等特點,可應用於pwm變頻調速系統的全數字化控制。An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process
飛行器軌道機動過程中,為跟蹤、定位機動目標和干預機動控制過程,需要統計處理離散的雷達觀測量實時估計推進發動機的推力,進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型,推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量,應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力To the problem that finding rules in enormous data is very time - consumable and the expansibility of existed algorithms is not very good, the thesis proposes a new method to discompose large data table based on the concepts of positive region and the importance of attribute in rough set theory. existed algorithms of rule deduction can be applied directly on the tree structure obtained by partition and the times for computation will be reduced observably. validation of information entropy on the partition structure shows that the partition of data table will not lead to the loss of information, while the computing speed increases at the same time, which reflects the practicability and rationality about the partition of large data table
針對海量數據處理起來極為耗時,現有演算法拓展性較差的問題,基於rough集理論中的集合正域概念以及由此定義的屬性重要性概念,提出一種大型數據表分解演算法,現有的規則歸納演算法可直接在分解得到的樹型結構上應用,將大大降低知識發現的時間,並從信息理論的角度利用信息熵概念對該分解結構進行了驗證,分析了這種分解的實用性及合理性,揭示了這種分解結構在提高計算速度的同時不會損失信息量。Then the steady and unsteady subsonic, transonic and supersonic viscous flows around airfoil and some aircraft are numerically simulated. the 3 - dimensional unsteady navier - stokes equations are solved using the implicit lu - nnd algorithm, with baldwin - lomax turbulent model. on the basis of simulating unsteady viscous flow, coupling the structure dynamics equations, the problems of static aeroelasticity and flutter are investigated for wings and elevator
在模擬非定常粘性繞流的基礎上,與顫振運動方程相耦合,分別對機翼和全機流固耦合現象中顫振問題進行了研究,準確求解跨音速顫振臨界速度,分析機翼和全機的從亞音速到超音速范圍的顫振規律,並研究分析了機翼飛行迎角變化對顫振速度的影響。In this article, analysis is made on some problems which must be faced when plasma ignition technology is applied in 600mw unit boiler to achieve a power plant without oil, such as plasma burner disposal, the number of plasma burner, the boiler ignition coursing satisfy the temperature needs, pulverized coal origin, hot air origin, and reconstruction solutions are proposed
本文詳細分析了某廠2 600mw機組鍋爐採用等離子點火技術實現無燃油電廠所面臨的等離子燃燒器的布置、等離子燃燒器層數的選擇、鍋爐點火啟動滿足升溫速度的要求、煤粉的來源、熱風的來源等問題,並提出了相應的解決方案。The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data
採用面元法預報大側斜螺旋槳水動力性能,螺旋槳表面及尾渦面離散為四邊形雙曲面元,每個面元上布置等強度源匯和偶極子分佈.對于大側斜螺旋槳而言,槳葉表面採用常規的等半徑網格劃分方法在近葉梢處將導致大展弦比、大側斜和扭曲面元,這容易使槳葉表面速度的計算結果不正確,甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃分方法,能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非線性等壓庫塔條件Local wars involving high - technology reflect the fundamental characteristics of the information era. electro - optic technology plays an important role in high - tech local wars, high - resolution information acquisition, huge - volume information transmission, super - high - density information storing, very fast information processing and lightweight flat panel displays not only be - nefit command and control, shorten the action period, but may also be applied to control weapon, improve target accutracy and promote intelligent weapons. with the wide use of electro - optic techno - logy in the battlefield, the role of electro - optic countermeasure has become more and more important
高技術條件下的局部戰爭反映了信息化時代的基本特點.光電子技術在高技術局部戰爭中扮演著十分重要的角色,包括高解析度的信息獲取、特大容量的信息傳輸、超高密度的信息存儲、特快速度的信息處理、輕小省電的平板顯示,不僅使指揮控制更加靈活準確,作戰周期大大縮短,而且也直接用於武器控制,提高武器的打擊精度和促進武器的智能化、無人化.由於光電子技術在戰場的廣泛使用,光電對抗在戰爭中的作用日益增強Knowing when the two split has implication both for understanding how quickly evolution works and for imagining the likelihood of intelligent beings elsewhere in the universe, researchers said today
研究人員於今日宣布,了解兩者間何時分化既會增加我們對生物進化速度的了解,同時對宇宙中其他地方存在智慧生物的設想也有重要意義。分享友人