速度測量學 的英文怎麼說

中文拼音 [sùdùcèliángxué]
速度測量學 英文
velocimetry
  • 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
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. （快慢的程度） speed; rate; pace; tempo
  • 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. In the system, the collimation semiconductor laser - scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. the beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high - speed photoelectric transition and electronic data process. two measured results of the diametric directs and ellipse tolerance, etc, parameter, of the turning workpiece on the same plane are obtained by non - contact automatic measurement

    在單向激光掃描檢測技術的基礎之上，提出了一種雙向激光掃描檢測系統，其採用激光掃描檢測技術與特殊光學系統相結合，用準直半導體激光掃描光束對被測工件徑向某一截面的兩個相互垂直方向同時掃描，經掃描接收光學系統、高速光電變換、電子學系統和微機數據處理系統，對將攜帶有垂直方向被測量信息的光束進行處理，實現了回轉體工件同一截面兩個垂直方向的徑向尺寸和橢圓度等參數的非接觸自動測量，解決了同時非接觸測量回轉體零件同一截面兩個徑向尺寸的難題，它具有高速，高精度和非接觸自動測量等特點。
  3. Given the initial conditions including ( 1 ) number density distribution in space which has the similar form to the present day ones, ( 2 ) both the power law and gaussian mass functions for clusters, and ( 3 ) two different velocity distributions which one has a constant dispersion and the other is described by the eddington formula, the dynamical evolution of globular clusters in our milky way galaxy is investigated in detail by means of monte carlo simulations

    本文採用與觀測結果具有相同形式的球狀星團空間密度分佈函數，在給定兩種球狀星團系統的初始質量譜（冪律的和對數高斯的）和兩種球狀星團系統的初始速度分佈函數（愛丁頓速度分佈函數和常數的速度彌散度）條件下，我們採用montecarlo的方法對球狀星團系統的動力學演化進行討論。
  4. The measured tangential force, tangential inertial force and normal vibration acceleration are decomposed using a discrete wavelet transform. the relation among these three dynamics state variables is investigated

    利用小波變換技術對測量的切向力、切向慣性力和法向振動加速度進行分解，對這些動力學變量之間的相互關系進行了深層次的研究。
  5. To investigate the the body shape strength and kinematics that effects sprint expert performance 17 healthy male sprinters were measured using songxiam9000 high speed vidicon in the field ; body shape of sprint athlete were tested by steel rule ; meanwhile shoulder were tested at 60, 240and360 deg / sec velocities ; lower limb were tested at 60, 240 deg / sec velocitues using biodex - ii tesing and rehabilitation system in the laboratory this research provide theoretical basement to scientifically make reasonable exercise prescription and perfect sprint theory the result show that ( 1 ) the results of correlation indicate that 100m performance related to the shoulder fast flexion torque and hip flexion / extension torque ^ ankle fast dorsiflexion torque ; ( 2 ) the upper arm relaxing enclose and lower limbs length effect 100m performance ; ( 3 ) the biggest shoulder extension joint, swing rage of shoulder and the biggest elbow joint extension effect 100m performance

    受試者為17名男子一、二級短跑運動員。使用松下m9000高速攝像機對100米跑動過程中的運動員進行錄像，同時測試短跑運動員100米成績，利用愛捷錄像分析系統獲取運動學參數；用人體測量尺測試短跑運動員的肢體圍度；同時採用biodex -型等動測力及康復統，測試運動員上肢肩關節及下肢髖、膝、踝3個關節的等速屈伸肌力。在角速度60 s （慢速） 、 240 s （中速）和360 s （快速）下測試肩關節等動向心收縮肌力；在角速度60 s9慢速）和240 s （快速）及120 s下測試下肢3關節等速向心及離心肌收縮肌力。
  6. Air is entrained as water jetting into water cushion pool, the gas - liquid two phase flows field are formed. the every phase velocity field are measured by using piv and ptv ( particle tracking velocimetry ) method in the course of jet angle 75and60 in gas - liquid flows of water cushion pool. image house of two phase flows are set up

    西安理工大學碩士學位論文使用數字圖像處理技術中的piv和ptv測速技術就射流入水角75度和60度兩種情況分別測量了水墊塘模型水氣兩相流流場的各相速度場，建立了相應的兩相流流態圖像庫。
  7. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  8. When high - bandwidth star sensor measurements are available, according to the singer tracking model, the full angular acceleration is modeled as a first order markov process while the use of the attitude dynamics is totally avoided

    在能夠獲得高頻星敏感器測量的情況下，針對模型不確定問題，提出了一種基於singer模型的新的濾波演算法，把角加速度建模為一階馬爾科夫過程，從而避免了使用姿態動力學模型。
  9. In the base of rigid body kinematics, the equations of attitude computation was developed via the imu sensor ’ s output, and a new method of the integrated attitude determination using gyroscope ’ s dynamic output and accelerometer ’ s static output was presented

    基於剛體運動學，本文給出了由慣性測量單元的輸出所確定的氣浮臺姿態解算方程，並提出了利用陀螺儀的動態輸出與加速度計的靜態輸出進行組合的姿態確定方法。
  10. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
  11. The figure of the part ' s original shape depend on digital equinpent mostly. digital equiment is divided into two big types, contac ttype and uncontact tyope. the contact type decelop with the optical and electonic element applied widely. uncontact measurement is rapid. the measured part is not scared, but it requirethat the measured part ' s surface can glisten. cmm is typical delegate of contact measurementcomparing to uncontact measurement, cmm is slow, but it has upper measurement precision. in range of required figure precision, it will affact the selective way of moddfile cuver

    由於其測量過程是利用光學方法進行的，從而對被測物體的表面提出了一定的要求，表面反光或全黑的物體都不適合於光學方法進行測量，或者說當遇到這樣的被測物體時需要更復雜的光學技術來保證測量的順利進行。坐標測量機（ coordinatemeasuringmachine ， cmm ）是接觸式數字化設備的典型代表。和非接觸測量方法相比， cmm雖然在數字化速度上比較低，但是它具有較高的測量精度。
  12. Nowadays, at home and abroad, one of the most widely used methods is judging fish freshness by detecting the compound of decomposed product caused by adenosine triphophate in the fish ’ s tissue in a chemical way. but this method has much shortcoming like manipulating complicatedly, costing highly, consuming much effort and time. and it needs to damage fish sample, so it is difficult to generalize the method in fact

    最常用的魚鮮度檢測方法是通過化學手段測量魚體內三磷酸腺苷分解產物的成分來判斷鮮度，其操作復雜、成本高、費時費力，且需要破壞魚體樣本，難以推廣使用，因此迫切需要利用氣敏傳感器開發一種無損、快速、方便的魚鮮度檢測方法。
  13. After computerizing the technical contribution to the growth of foreign hi - tech industry with the aid of econometrical model, it is concluded that the speed of hi - tech industry growth is high but the quality is comparably low

    藉助計量經濟學模型對外資高新技術產業的技術進步貢獻率作了測算，得出了現階段高新技術產業增長速度很快，但是增長質量不高的結論。
  14. On the basis of current investigation of both the domestic and foreign and current level of development, and contraposing difficulties and keys of autofocusing and measurement, this paper brings forward system of autofocus and measurement based on techniques of image processing of ccd. this system possesses merits of fast speed, high precision, small bulk and large dynamic range. it is able to carry out needs of fast, accurate, large range autofocusing and requests of noncontact and online measurement of workpiece face runout

    本論文根據目前國內外現狀和發展水平，針對自動聚焦和端面跳動測量的關鍵點和難點，在普通光學儀器的基礎上提出了一種基於ccd圖像處理技術的圖像式自動聚焦及其測量系統，該系統具有速度快、精度高、動態范圍大、體積小等優點，實現了快速、精確、大范圍的自動聚焦和對工件端面跳動進行非接觸、在線測量的要求。
  15. Geoid is the reference datum of spatial data collection, so how to ascertain the geoid, that of all over the world, that of one nation, or that of one zone, is always an nuclear task of surveying science but there is not the quick and automatic solution. the density of the required data of astronomical measurement, gravimeter survey and geodesic survey is not satisfied

    大地水準面是空間測量數據外業採集所依據的參考基準面。確定全球、一個國家、一個地區的大地水準面的形狀始終是測繪科學的一項核心內容，一直未能有快速、簡潔、自動的解決方法。需要的天文測量、重力測量、大地測量等數據的密度無法滿足其需要。
  16. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  17. Airborne gravimetry is applied to rapidly get extensively and precisely well - distributed information of the earth gravity field in order to meet the needs of geodesy, geophysics, oceanography, exploration, space - science and the other fields. airborne gravimetry includes scalar airborne gravimetry and vector airborne gravimetry. scalar airborne gravimetry is used to get the value of the gravity acceleration, and vector airborne gravimetry can get not only the value but also the direction of the gravity acceleration

    它可以快速獲取精度良好、分佈均勻、大面積的地球重力場信息，而且能夠在一些難以實施地面重力測量的特殊地區如沙漠、冰川、沼澤、原始森林等進行作業，從而能夠滿足大地測量學、地球物理學、海洋學及資源勘探等學科和領域對地球重力場信息的需求，並能為空間科學提供強有力的地球重力場保障。
  18. This paper makes a attempt that the measurement systems of the velocity parameter is to adapt the development of the new science and technology and people ' s increasing demand

    本文是對車輛速度測量系統在適應新科學、新技術的發展和人們日益增長的需要而做的探討。
  19. How to measure rapidly and accurately the thickness of nanometer is one of important methods of research and product nanometer film

    介紹了如何根據波動光學原理，使用普通物理實驗室中的邁克爾遜干涉儀和計算機技術，以及數碼攝像技術，比較準確、快速地測量納米膜的厚度。
  20. The sub - optimal filter, which uses a 6 1 vector ( 3 position components and 3 velocity components ) as well as the corresponding covariance matrix to evaluate the performance of the filter, linearizes the original nonlinear system model and nonlinear observation model at their respective reference sample points

    這一濾波方法對高度非線性的動力學系統模型與觀測模型做了線性化近似處理，並選擇由彈道位置與速度分量組成的6維狀態矢量及其相應的協方差陣來評估系統濾波的效果。
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