求積分器 的英文怎麼說

中文拼音 [qiúfēn]
求積分器 英文
integrator
  • : Ⅰ動詞1 (請求; 要求) ask; beg; request; entreat; beseech : 求人幫忙 ask sb a favour; ask a favou...
  • : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
  • : 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
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 積分 : 1. [數學] integral; integrate; integration 2. [體育] (積累的分數) accumulate points
  1. The complex nonlinear pursuit - evasion model of two spacecraft in near - earth coplanar orbit is simplified to linear model, the circular region the radius of which is equal to capture radius is defined as target set, capture is achieved when the evader come into the target set and the game is over ; the boundary of useable part ( bup ) is determined, and the analytical form solution of the linear equations is obtained by backward integration of the state variables from the bup, the linear barrier of the pursuit - evasion model and the optimum thrust of the both sides are thus obtained

    本文將近地共面軌道內運動的兩飛行非線性追逃模型簡化為線性模型,以捕獲半徑的圓域定為目標集,確定目標集邊界上的可用部,並以此為各狀態變量的起點,對時間進行倒向得線性方程組的解析解,從而確定了該追逃模型的線性界柵,以及界柵上對策雙方的最優推力,即得了滿足最優策略時相對運動的軌跡和推力。
  2. The ultrasonic dynamic contact of bolt - clamped transducer and rigid plane are modeled using hertzian contact theory, and the analyzing results reveal that the nodal plane of the bolt - clamped transducer is levitated in normal direction by the ultrasonic dynamic contact action, and the real area of contact of bolt - clamped transducer and rigid plane decreases in the same time

    首先利用赫茲接觸理論建立了夾心式換能和剛性平面的超聲動態接觸模型。通過對模型進行析、解表明,在縱向超聲頻率動態接觸作用下,換能節面位置產生了上浮,換能端面與剛性平面的動態真實接觸面比靜態時減少了。
  3. So, this paper researches the principle of measuring system of insulating oil dielectric loss and volume resistivity. during the measuring process, the insulating oil must be heated and kept at 90 in 15 minutes. medium - frequency induction heating method is presented to instead of the electrical resistance furnace heating method on chapter 2, and a kind of subdivision - controlled integral - separated digital pid algorithm is designed to control the medium - frequency induction heating apparatus

    本文對恆溫控制系統進行了研究,提出了以中頻感應加熱方式取代原有的電阻爐加熱方式,設計了一種段控制的離式數字pid控制來控制中頻感應加熱裝置,並通過通信設計將恆溫控制系統與介損及體電阻率測試系統有機結合為一體機,實驗結果表明該恆溫控制系統完全滿足介損及體電阻率測試中的控溫要
  4. In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )

    主要研究內容包括:一、總結析了當前水下導航的常用方法和不足之處,指出基於航位推算的導航方法,存在著最大的問題就是導航誤差的累問題,如果沒有修正系統,這種方法很難滿足使用要;其次指出基於聲學的導航方法,造價昂貴,導航范圍有限,難以滿足自主水下航行大范圍導航的需;二、總結了當前水下地形輔助導航的主要技術路線,一是基於地形高程的匹配方法,這是當前研究的重點;二是基於地形圖像的匹配方法,由於缺乏良好的圖像傳感,和可用的海底圖像地圖,目前這種方法還有待研究發展;三、將兩種地形高程匹配的常用方法應用到自主水下航行上:以相關演算法為前提的地形輪廓匹配( tercom )方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航( sitan )方法,前者演算法簡單可靠,但是導航精度不高,後者雖然精度比較高,但存在著演算法較為復雜、有可能發散和出現奇異值等問題。
  5. During the procedure of system design and implementation, the author has made some innovative efforts such as : ( d establishing the user interest orientated model, the model receiving user interests continuously and conjecturing user interests by interaction with the user, accumulating user preferences in information demand, thereby achieving self - adaptive retrieval, ? roviding a feedback method which is based on the human - machine interaction, summarizing the user operations on the interface of result presentation, and designing an algorithm for capturing user operation behaviors, by which the changes in user interests and preferences can be learned potentially, ? ffering a method for user interest mining which can extract subjects of information confirmed by user, thereby conjecturing or predicting different kinds of expressions of the same interest or extracting the new interests or unexpressed interests, ? roposing a solution of personalized internet information retrieval based on the user interests in accordance with the above - mentioned work, the solution having very strong feasibility and practicality with taking user interest model as center, employing machine learning ( active learning and passive learning ) and data mining as tools, and being assisted with network robot,

    Piirs系統析與設計過程中所做的創新性的嘗試主要有以下幾個方面:實現了基於用戶興趣的用戶模型,該模型通過與用戶的交互(主動交互和被動交互) ,不斷地接收用戶的興趣和推測用戶的興趣,累用戶信息需的偏好,實現自適應的檢索;提供了一種基於人機交互的反饋方法,對用戶在結果呈現界面上的操作進行了歸納總結,設計了用戶操作捕獲演算法, 「隱性地」學習用戶興趣和偏好的變化;提供了一種用戶需挖掘的方法,對用戶已確定的信息做進一步的主題挖掘,由此推測或預測用戶同一興趣的不同表述方式或者挖掘出用戶新的或未表達出來的興趣;在上述工作基礎上提出了一套完整的基於用戶興趣的個性化網路信息檢索的解決方案,該方案以用戶興趣模型為中心,以機學習(主動學習和被動學習)和數據挖掘為手段,輔以網路機人,具有很強的可行性和實用性。
  6. The best scheme was chosen after analysis and comparing and the structure was designed. at same time, the kinematics analysis was conducted, coordinate transformation matrix using d - h method was set up, and the kinematics equation direct solution and inverse solution was deduced, the velocity jacobian matrix was constructed using vector product method, and the values of displacement and velocity of some special point including the wrist point were calculated. secondly, the working space of the robot was analyzed and the axes section of practical working space was drawn

    首先,作者針對機人的設計要提出了多個方案,對其進行析比較,選擇其中最優的方案進行了結構設計;同時進行了運動學析,用d - h方法建立了坐標變換矩陣,推算了運動方程的正、逆解;用矢量法推導了速度雅可比矩陣,並計算了包括腕點在內的一些點的位移和速度;然後藉助坐標變換矩陣進行工作空間析,作出了實際工作空間的軸剖面。
  7. As an air breaker with the minimal size in the world, the masterpact mt n type of breaker can meet requirements of various operating condition. it produces no flashover. it is free of maintenance and is fully intelligent. the breaking capability of masterpact mt n breaker upgraded is increased from 42ka to 50ka

    作為世界上體最小的空氣斷路, masterpactmtn型斷路能滿足各種使用環境的要、具有零飛弧、免維修、完全智能化等特點,而升級之後的masterpactmtn斷路斷能力更是由42ka提升到50ka 。
  8. The terminal states of the vehicle at the taem ( terminal area energy management ) interface box were predicted through the integration of the equation of motion, and to correct the state errors which the angle of attack and the bank angle were corrected in real time

    通過對運動方程預測飛行在能量管理段界面處的終端狀態,實時調整迎角和傾側角方案,以使終端狀態誤差滿足要
  9. Adopted numerical value integral method into the explain of the basic heat - conduct differential equation based the stabilization flow. get temperature changes rule of the cold - blowing and hot - blowing period of the cold - cumulating and dry - able tin

    採用數值法對基於穩定流的基本傳熱微方程組進行解,進一步了解了影響蓄冷效率的主要因素。
  10. In the case of thin slot, taking the effect of wall thickness into account, the coupler is analyzed with the slots replaced by equivalence magnetic current using the equivalence principle. the integral equation system is fonned and calculated by the moment method

    對于細長縫隙的情況,考慮了波導壁厚,利用等效原理將縫隙等效為磁流源在主波導和耦合波導中的作用,根據電磁場連續性條件建立方程,並用矩量法解,進而出耦合的散射參數。
  11. This article according to the acquirement of the system parameters such as : temperature sensitivity 、 angle resolution 、 image forming time etc to design the type and diameter of the antenna ; the receiver type, integral time, rf gain, lpf gain ; the mode of calibration ; the sample frequency and program of the daq ; the scanning time, scan type, etc

    本文根據系統溫度靈敏度、角解析度、成像時間等參數要,對系統天線類型、直徑,接收機類型、時間、射頻增益、視頻放大增益,定標方式,數據採集卡的采樣頻率、編程及驅動裝置的掃描速度、掃描類型等進行了詳細的析設計。
  12. Abstract : the stability of the wall - climbing robot which climbs on are surface was analyzed in this paper by using theories about integral equation. a new kind of sealing structure was designed and its ability of solving the problem of gas leakage when robot climbs on are surface , was proved by our experiment

    文摘:本文利用方程的有關理論對爬壁機人在弧面上爬行時的穩定性進行了解.提出了一種新型的釷對弧面上爬行的爬壁機人的密封結構.經過實驗驗證了此結構能夠解決爬壁機人在弧面上爬行時氣體匯漏量大的問題
  13. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題,主要研究內容有: ( 1 )實驗、測定了20種常見生物質的能量(發熱量)和c 、 h 、 n元素含量,根據實驗結果別建立了以h和c為自變量的生物質能量預測經驗公式,並通過r _ ( 0 . 05 )檢驗;為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便; ( 2 )選擇了8種生物質試樣作了等加熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加熱的tg和dtg實驗,根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微方程,並採用goast - redfem法和p函數對其動力學參數進行了解,解析出各種生物質的頻率因子和活化能參數,進而建立了各種生物質的熱解動力學模型,為科學確定反應的閃速熱解工作溫度范圍及熱解反應動力學描述,提供了理論和依據; ( 3 )為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間,在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定,得出生物質的長徑比( l d )一般在5 . 0 6 . 0之間,平均為5 . 3的結果; ( 4 )採用復雜溫度場傳熱學理論對生物質傳熱過程及充熱解時間理論進行了研究,解析推導出了不同尺寸生物質顆粒中心溫度達到充熱解溫度的時間( t ) ,得出了理論推導的充熱解時間與最大產油率的熱解時間相一致的結果,為閃速熱解反應固相滯留時間設計和預測提供了理論依據; ( 5 )根據上述實驗結果,綜合運用工程力學、工程材料、機械設計學原理,推導、建立了轉錐式閃速熱解反應物料滯留時間( )與轉速(或頻率)合理匹配理論; ( 6 )提出了轉錐式閃速熱解反應的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。
  14. This paper first analyzes performance criteria of a control system, and proposes a controller design method that incorporates disturbance attenuation and robust performance. the robust pid controller design amounts to an optimization problem with a non - convex constraint. genetic algorithm is used to solve the problem due to its global search ability, simulation examples show that the method is effective and have general sense

    本文從析控制系統的性能指標入手,從抗干擾性能和魯棒性能兩方面綜合考慮控制的設計,得到一種魯棒pid控制的設計思路,把pid控制的設計問題轉化為解一個帶魯棒性能約束的絕對誤差指標( iae )優化問題。
  15. To accept the current signal from high negative voltage circuit, the analog ground is raised to a certain positive voltage, which makes it possible for the signal amplitude to be compressed at the same time of its polarity reversion. a pi control program special for laser gyro current control is brought forward according to the conventional pid control method, in which the control signal is figured out corresponding to the difference between the sample and the reference value by turn of proportion - short step integral - long step integral. and at the end of this paper, a comparison of system performance on different conditions is made and the key elements influencing system performance are educed

    利用集成a / d 、 d / a轉換的新型晶元aduc824 ,實現了電流(電壓)采樣?數據處理?電流控制的閉環控制結構;地電位的抬升解決了a / d轉換對負高壓迴路電流采樣時的輸入范圍匹配問題;控制信號反相的同時進行幅度壓縮,使得輸出調整電壓的解析度提高;根據常規的比例??微( pid )調節模型,針對陀螺系統的特性,給出了一種可以滿足系統要、據采樣值偏差大小進行的比例?大步長?小步長層次比例?演算法;不同條件下系統穩流性能的對比、析在論文最後給出,並據此找出了決定該系統穩流精度的關鍵因素,提出了系統的改進意見。
  16. In this paper, nonlinear static analysis methods, structural dynamic time history analyses based on structural state equation in hamilton system, multi - mode control theories of multiple tuned mass dampers, and semi active control laws of " on - off " are investigated

    本文析和研究了結構靜力彈塑性析方法、基於hamilton體系下結構狀態方程解結構動力學問題的數值逐步方法、多重調諧質量阻尼( mtmd )的多模態控制理論以及建築結構的半主動控制律。
  17. Ct method uses array linear detectors to perform high - resolution tomography and yield relative image of linear attenuation coefficient

    測出的線衰減系數是相對的,成像要辨。 tgs裝置用的是同軸大體hpge探測
  18. Circuit design is the basis of design of demultiplexer. speed, power and chip area are the main factors that should be considered in circuit design. every circuit structure has its merits and drawbacks, e. g. cmos logic family has a slower speed, but lower power, smaller area, scfl ( source couple fet logic ) family has a higher speed, but higher power, larger area. we should choose a proper circuit structure or their mixed structure for certain design to get a good tradeoff among the three factors. flip - flop is the fundamental element of demultiplexer, setup time and hold up time are key factors, which influence the speed of circuit, thus the design aim is how to reduce them. in this thesis we place emphasis on the design of scfl latches

    速度、功耗、面是電路設計要考慮的主要因素,不同的電路形式具有不同的優缺點,如cmos互補邏輯電路功耗低,面小,速度相對較慢; scfl (源極耦合fet邏輯)電路速度高,功耗和面較大。所以要針對具體設計需要選用適當的電路形式或其組合結構,以滿足設計要。觸發的基本組成單元,建立時間和保持時間是影響電路速度的關鍵,所以減小建立時間和保持時間是觸發設計的主要目標,本文著重介紹了scfl鎖存的設計和優化方法。
  19. In chapter 4, method of moment ( mom ) solution of transient electromagnetic scattering by perfect conducting surfaces is discussed by dealing with time - domain integral equations ( tdie ' s ). rectangular patches model and triangular patches model are compared and their applications are exploited. in the mean time reference [ 42 ] and [ 61 ] are recruited

    其中第四章通過解時域方程給出了良導體表面瞬態電磁散射的矩量法解,比較了矩形貼片模型和三角貼片模型並拓展了它們的應用,補充了文獻[ 42 ]和[ 61 ]的內容;第五章工作重心是計算機顯示屏蔽箱體的設計,對通風問題給予了充考慮。
  20. And the controlling method of pi makes the temperature control quick and stable. at the same time, the paper completes the mutual communication between temperature control equipment and computer by way of serial interface and usb interface, so as to realize the remote control of computer to the temperature control equipment. finally, the performance test of the semi - conductor temperature control equipment researched in this paper is carried out, and the results show that the precision of the temperature of the controller of semi - conductor can reach to 0. 2, and the degree of temperature stablization is less than 0. 05

    整個系統採用閉環控制結構,使系統的抗干擾能力大大增強;為半導體製冷量身定做的驅動電路,可以方便的調節通過tec電流的大小和方向,使tec加熱製冷靈活迅速的特點得到充發揮;使用比例( pi )的控制方法使得溫度控制快速穩定;同時,本文還實現了溫控儀與上位機通過串列口和usb口兩種方式的通訊,實現了上位機對溫控儀的遠程控制;最後,對所研製的半導體溫度控制儀進行了性能測試,測試結果表明,半導體溫度控制儀溫控精度達到0 . 2 ,溫度穩定度小於0 . 05 ,滿足了系統設計的要
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