精確線性關系 的英文怎麼說

中文拼音 [jīngquèxiànxìngguān]
精確線性關系 英文
exact linear relation
  • : Ⅰ形容詞1 (經過提煉或挑選的) refined; picked; choice 2 (完美;最好) perfect; excellent 3 (細)...
  • : 形容詞1. (符合事實; 真實) true; reliable; authentic 2. (堅固; 堅定) firm
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • : Ⅰ動詞1 (使開著的物體合攏) close; shut 2 (圈起來) shut in; lock up 3 (倒閉; 歇業) close down...
  • : 系動詞(打結; 扣) tie; fasten; do up; button up
  • 精確 : accurate; exact; precise
  • 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下:首先針對荒漠化地區的地物特徵,對高光譜數據不同波段的數據質量、波段組合進行了評價,提出了適用於荒漠化監測的基本波段選擇集;初步了解和掌握了研究地區的地物光譜特及變異規律,進一步明了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎;發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲整體平移的「同物異譜」現象,對于譜形相似而整體反射率的值相差較大的兩類地物,通過引入均值和方差圖像參與分類得到解決;研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段,這些波段與植被生物量和蓋度都有密切的,是開展細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進行植被生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用
  2. This paper deriving the theory work inflection point in the static stage characteristics curve of small measurement range linear dimension measurement. by the way of high pressure and back pressure pneumatic measure and designed the parameter of the mainly and measure spray head, which are the key component in the spray head - baffle pneumatic sensor. the different groups for the main - spray head and the measure spray head, will effect the dynamic and static stage characteristic parameter. the author have done contrast experiment and optimization design to test and verify the theory derivation whereby made the rang of show valve of pneumatic measure system measure range up to 40 u m, the sensitivity up to 100mv / u m, resolution up to 0. 05 p m, the uncertainly of measure is less than 0. o2 u m, satisfaction of requirement of groups the carboy hatch thickness size precise measure of soft shims

    對高壓背壓式氣動測量用於小量程尺寸測量的靜態特的理論工作拐點進行了推導,對氣動測量統中的噴嘴-擋板型氣動傳感器中的鍵部件? ?主噴嘴和測量噴嘴的參數進行了理論設計,對主噴嘴和測量噴嘴的不同組合,將影響測量統靜、動態特指標的噴嘴參數進行了對比實驗和優化設計,並通過實驗驗證了理論推導,從而使氣動測量統量程的示值范圍達到40 m ,靈敏度達到100mv m ,解析度達到0 . 05 m ,測量不定度小於0 . 2 m ,滿足了壓縮機缸蓋軟體墊片厚度尺寸密測量分組的要求。
  3. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先,統分析了影響黃河水位的水沙因素,及僅用水沙因素有效研究水位的可行,並按變量對應思想採集它們的相應數據;其次,由於相應水位過程數據中含極強的非,本論文經細致的理論分析,將基本的非分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合,提出了能有效實現這類數據高度擬合的分層篩選法,並改進了統計學中多因子(三個以上)方差分析法;再次,將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合,實現了這一典型非的高度擬合,各年汛期上下游相應洪水位過程的擬合誤差都較小;最後,明黃河下游含沙量對水位的主要影響方式,即含沙量主要是與其它因素聯合對水位作用;另外分析了要實現變動河床洪水位過程準預報的困難所在及改進方向。
  4. On the basis of the comparison of successful experiences of running agricultural education in developed counties, such as usa, japan and france, this paper put forward following viewpoints : in order to visualize the strategic status of hae, necessary protectionism must be offered through lawmaking and hortative policies, peasantry - undergraduates facing agricultural production must be cultured in the process of expanding and developing hae. the opportunities of developing higher agricultural vocational and technical education must be grasped in the process of realizing the transit from elite - education to popularization - education. existent and developmental room of hae must be unceasingly widened basing upon the road of distinctiveness, integration and internationalization

    文章在比較美國、日本、法國等國家發展高等農業教育的成功做法和經驗的基礎上,提出了要通過立法或制定鼓勵政策來彰顯高等農業教育的戰略地位,為高等農業教育的發展提供必要的政策保護;要在大力擴張高等農業教育的過程中培養面向農業生產一的農民身份的大學生;要在實現農科英教育向大眾化教育轉軌的過程中抓住發展高等農業職業技術教育的機遇;要通過立足走特色化、綜合化和國際化的道路來不斷拓展高等農業教育的生存和發展空間;要正處理英教育與大眾化教育的,明各類農業高校的生態位等發展高等農業教育的觀點和思路。
  5. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相技術,主要研究成果包括以下幾方面:首先,建立了利用兩顆地球靜止軌道衛星進行短基定向的數學模型,分析了載波相位干涉測量的適用條件;採用傳統的化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的度進行了詳細分析,數學模擬結果表明在高緯度地區化解析法由於俯仰角誤差分析度略有下降而不太適合;在分析定向影響因素的基礎上,提出了雙星定向度衰減因子odop的概念,揭示了雙星定向誤差特殊表現的內部機理,對實際工程應用具有重要的指導意義。
  6. The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering

    本文從星載雷達的星地幾何入手,舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型,研究了在地球橢球模型和橢圓軌道模型下由雷達天定目標坐標的方法,並在此基礎上研製了星載合成孔徑雷達統設計與模擬軟體,完成雷達統天尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的統參數設計以及雷達多普勒特、雷達統模糊、雷達定位及度的分析,最後完成雷達回波信號的模擬。
  7. Calibration graph obtained by the modified procedure for ddmbac showed good linearity and its correlation coefficient was above 0. 999. the coefficients of variation and average recovery of added ddmbac were up to the mustard. the linear concentration ranges for batch determination of ddmbac were 0. 06 ~ 3. 33mg / l

    利用改進后的方法對ddmbac的測定建立了質量控制體,其標準曲的相數大於0 . 999 ,良好,密度和準度均符合檢測要求,范圍為0 . 06 ~ 3 . 33mg / l 。
  8. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲坐標下的拋物化穩定方程,文中發展了求解的高效數值方法:引進法向變換,使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階度的法向有限差分格式,這對方程離散至重要;採用全局法和局部法相結合的方法及其新的迭代公式,大大加速收斂並得到更的特徵值。
  9. By taking advantages of epipolar line features and depth discontinuities in reference 中國科學院 軟件 研究所 博士 學位 論文 基于 圖 象 的 快速 繪制 技術 的 研究 images , an efficient inverse wmping algorithm is pfoposed in chapter 3 for gcnerating nagcs of novel views by combining multiple eference images 帆 enhm different vie 呷 oints because continuous segnents determi 。 d by pairs ofedge pixels at co 。 spending epipolar lines are order kept , only pairs of edge pixels in the reference 渝 明 e e necess 叨 口 cowute to obtain generalized disparity of all points in the desired image as a result , sighficant acceleraion could be made in the endering pfo 比 鴕 two accelerating techiq 此 s e presented in this algori 山 mb accelerate the hole illing process his algorithm extends the reference images rom projection of single col : ii ’ ected surface in previously developed nvnverse w 出 下 er to ima 驢 s captured rom complex scene in chapter 4 , an 《 dent ibr method is prese 庇 仙 y takn ull 訕 antage of 呷 bies c 咖 the method can simulate the 3d details on sllri : ace of object successfully he 。 叩 proach , called rered ature mopmp consists of two pans at fst , an origi 。 ltexture with orthogonal displacements per pixel is deco 啊 osed into a series of new t6 刀 mfcs with each 他 lug a given displacement per pixel , called ae , ea atures , or lt hen hese lt e used to render the novel view by conventional texture mapping d avoid gaps n the endered hlla 驢 , some phels are to be interpolated nd extended in the 廠 kaccoding to the depth differe eee between two neighbor pixels in the original texture as these ltlt fc … e much storage nd therefore much time is equired to install ltlt into the text ’ ufc buffec an 舊 thod is pfoposed to co 呷 fcss the ltlt , nd the cottcspondingfclldering method is given experimental esults show that the new method is efficient , especially n rendering those objects with a smaller depth rnge compared withtheir size , such as relief surfaces of building

    與己有的三維變換方法相比較,該方法不但成功地填補了由於投影區域擴張而產生的第一類空洞,而且成功地填補了由於空間深度非連續物體相互遮擋而產生的第二類空洞,從而方便地實現了虛擬環境中的漫遊;基於物體表面深度的連續,本文提出了一個位移預測方法? ?此方法可以從單幅參考圖象獲得逆映射過程中所需要的目標圖象的位移信息,從而大大提高了演算法的效率:與通常的正向映射演算法相比,此演算法克服了多幅參考圖象所帶來的計算量成倍增長等問題,而且誤差較小。 2 )基於極幾何的快速逆映射演算法。利用參考圖象的邊界信息與隱含的遮擋,以及極幾何的質,本文第三章提出了一個基於極幾何的快速3 『一中國科學院軟體研究所博士學位論文基於圖象的快速繪制技術的研究逆映射演算法,從多幅參考圖象合成當前視點目標圖象。
  10. In chapter 2, author points out firstly that the elastic deformation of elastic units of a robot ' s wrist force sensor will be enlarged by the end - effector, the instruments and the work pieces, so the elastic deformation of the sensor will influence the location accuracy or kinetic accuracy of end point of a robot, under the condition of that the robot technology facing the developing of heavy load, light mass and high accuracy. it is discussed respectively that the relationship between the differential kinemics in the sensor ' s coordinate and the location accuracy or kinetic accuracy of the end point. error matrixes of location and kinemics of the end point are presented respectively based on the differential kinemics in the sensor ' s coordinate, and the on - line error compensation methods are introduced subsequently

    第二章首先指出機器人腕力傳感器彈體的彈變形經過機器人末端連桿、工具、工件等的放大后,會對機器人末端定位和運動產生的影響;然後分別研究了傳感器坐標內的微分運動與機器人末端工件定位、運動的;在此基礎上,研究了基於腕力傳感器彈體微分運動的機器人末端定位、運動誤差的誤差矩陣及其在誤差補償方法;基於機器人動力學的機器人末端定位、運動誤差的誤差矩陣及其在誤差補償方法;最後,以puma型機器人為對象,給出了基於腕力傳感器內微分運動的機器人末端定位、運動誤差及其在補償方法的模擬實例:給出了基於機器人動力學的機器人末端定位、運動誤差及其在補償方法的模擬實例;模擬結果表明, 1 )基於腕力傳感器的機器人末端定位誤差在腕力傳感器允許的載荷下可達十分之幾毫米級。
  11. The paper analyzes the non - lineal relations of the quantity of heat exchange and water flux of coil exchanger in part - load operating condition, the shortage of deciding the water flux in bypass pipe, the disadvantage that the operating condition of pumps and chiller ca n ' t be met with the load change of the air conditioning system in different operating condition of using pressure - difference bypassing control in primary water pump system. using load control method in the change of the operating condition of primary water pump system can realize that the load change is small and reasonable in the on / off condition of pumps and m m chiller by comparing load control method in primary variable - flow water pump system with pressure - difference bypassing control method, back water temperature control method

    本論文從目前空調工程中使用的變流量水統入手,研究了盤管換熱器在部分負荷下水流量與換熱量的非,分析了文獻中介紹的旁通管通流能力選擇的不足之處和一次泵水統採用壓差旁通控制時,工況轉換不能滿足統控制要求的缺陷;比較了一次泵變流量水統中壓差旁通控製法、回水溫度控製法、負荷控製法的,並得出了在一次泵水統的工況轉換時,採用負荷控製法能使冷水機組及其相應水泵在啟停時的負荷變化范圍較小,更符合建築物的冷量需求,節能效果較好的結論。
  12. The tensile and compression experiment on bulk nanocrystalline ag prepared by igc method was carried on mt810 with different grain sizes and zwick 10tn2s machine at different strain rates under normal temperature respectively. the stain rate sensitivity m was found to be 0. 025, which was extremely lower than the ordinary values. also the work hardening exponent is very low

    本文從用惰氣體蒸發冷凝和真空原位壓結法( igc )制備得到的直徑80mm ,厚度7 . 6mm的大尺寸納米晶金屬ag樣品上切割得到符合力學實驗要求的拉伸和壓縮試樣,在mts810和zwick密力學測試機上分別測定了拉伸和壓縮應力?應變曲與晶粒尺寸和應變速率的
  13. In this paper, the fundamentals of cable forces by frequency method are introduced. the curve fitting method is utilized to get the correcting formula of cable forces and frequency through the experiment. on the other hand, a kind of catenary line cable element is introduced in this paper, owing to the inaccuracy caused by correcting struss element in fem

    本文還介紹了頻率法測索力的基本原理,並通過試驗,利用曲擬合法得出索力頻率之間的修正式;其次,由於有限元計算中,索元所採用的修正桿元所帶來的不,對于長索其度更難保證,因此,本文介紹了一種計算度高、工作量小的懸鏈索元。
  14. It analyses the causes to bright image movement, studies principle to compensate image movement, conforms project to compensate image movement, and designs framework to compensate image movement in the article ; to analyze and design configuration of the scanning mirror, to select matters of mirror and its support structures on the principle of consistent line expansion coefficient ; to ascertain type of moment electromotor by most rotating angle speed and most rotating moment which are required by loads in the period to take pictures, as well as by figuration size of electromotor ; to design retarder according as the electromotor parameters ; to design and optimize lightweighted mirror shapes, because the mirror is key part ; to design flexure support structure, to analyze static and dynamic characteristics of the support structure by name of patran program for validating desig n rationality ; to study function of the scanning mirror electric control system ; to test precision of the system, the results indicate the rationality of design of the scanning mirror system

    本文通過分析像移產生原因、研究像移補償原理,定像移補償方案,並根據像移補償原理設計補償機構;分析與設計掃描反射鏡統結構,根據材料膨脹數一致原則,選擇反射鏡及其背部支撐的材料;由掃描反射鏡在擺掃周期內的最大擺掃角速度定力矩電機的額定轉速,根據負載力矩定電機的額定轉距,綜合電機外型尺寸等因素,定執行元件? ?電機的型號;根據所選電機的參數指標,設計1 : 6速比的減速器;利用patran軟體對掃描反射鏡統中的鍵件? ?反射鏡進行輕量化設計與優化;設計反射鏡柔支撐結構,並通過軟體分析支撐結構的力學特,驗證反射鏡柔支撐結構設計的合理;從原理上研究掃描反射鏡控制統功能;進行度測試,測試結果表明掃描反射鏡統設計的合理
  15. This dissertation also presents the equivalent stiffness and damping models and the nonlinear hysteresis and saturation model of a kind of the mr damper developed by the experimental testing and modeling in order to describe accurately characteristics of the mr damper

    建立了磁流變阻尼器的等效剛度和等效粘阻尼數與施加電壓、激振頻率和振幅的以及能表示磁流變阻尼器的力學特的非滯回模型。
  16. Engineering drawing has always been labeled as a practical subject. a combination of geometrical, building. mechanical and electrical drawing, it relates between theory and the picture of reality. engineering drawing will provide an accurate and complete ptcture for every object tn terms of shapes and sizes. usually, it is taught using the face - to - face teaching mode even in an odl environment. due to its nature, some students may find difficulty in imagining and interpreting the drawings. however, the availability of sophisticated technology provides the opportunity for the learning of engineering drawing to be enhanced via online. a web - based system for teaching and learning engineering drawing was developed based on a constructivism model. the web - based system is tailored for several topics of engineering drawing such as orthographic projection, sectional view, isometric and oblique drawing at the secondary level. the learning strategy consists of multiple phases beginning with introduction, concept learning, engineering drawing method, application and exercises. during introduction, students will be exposed to an overview of the topic followed by learning of specific concepts. the system provides a learning environment that allows engineering students to view objects from different angles, such as third angle projection and first angle projection as well as views of plans, side and front elevations. after learning about the concepts, students wilt be guided through the various steps in drawing methods for each topic via animations and simulations. learners are able to view any section repeatedly. examples of real application of engineering drawings were also given using graphic, animations and video. to evaluate students understanding, exercises were given at the end of each session

    工程制圖一直被認為是一門實踐學科,其整合了幾何學、建築、力學、電子制圖等,從而將理論與現實圖像聯起來,工程制圖能為每個不同形狀、尺寸的物體提供的、完整的圖像.通常,即使在開放與遠程教育環境中,工程制圖的教學也是通過面對面的教學模式來進行的.由於其特殊,一些學習者可能難以想象並解釋這些圖像.然而,尖端的技術使得可以通過在的方式加強工程制圖的學習.研究者基於建構主義模式開發了一個面向工程制圖教學和學習的網路統.該統適用於幾種工程制圖,例如展開圖、刻面圖、等角圖和斜角圖.學習過程包括導論、概念學習、工程制圖方法,以及應用與練習等階段.在導論階段,統為學習者提供了專題簡介,然後是概念學習階段.統所提供的學習環境允許工程專業的學生從三維透視、一維透視、平面圖、側立面、正立面等不同角度來觀察物體.經過概念學習階段后,統將引導學生通過動畫和模擬學習每個專題中制圖方法的不同步驟,學習者也能重復觀察任何剖面.另外,還通過圖像、動畫和視頻等方式展示真實的工程制圖應用案例.最後,為了評價學生的理解能力,在每部分內容後面都附有相的練習
  17. In brushless excitation system, rotating rectifier is likely to occur several faults. but there is not clear linearity relation between the cause of fault and corresponding symptom. and it is difficult to describe their relation with mathematics model

    在無刷勵磁統中旋轉整流器可能出現各種故障,但故障原因和相應的癥狀之間往往沒有明,也就很難距歷g洲的數學模型來描述。
  18. There were troubles in the continuity of the function and of its - derivative divided by band - mass on the boundary. in the theoretical calculation, the wave function is relative to the physical properties of the impurity greatly, the envelop function f ( x, y ) is expanded in terms of the one - dimensional linear harmonic oscillator function in this paper. it satisfies the continuity of the function and of its - derivative divided by the band - mass, so it improves the precision of the function and binding energy

    與以往工作不同的是,以前選用的x , y方向電子的包絡函數f ( x , y )是一維有限深量子阱中波函數的乘積,在邊界上波函數的連續和粒子流的守恆條件存在問題;而在理論計算中,波函數的選取與雜質的物理質有密切,本文選取的電子的包絡函數是用一維諧振子的波函數展開而成的,在邊界上能夠同時滿足波函數的連續及粒子流( 1 / m ~ * ) f ' ( x , y )的守恆條件,從而使得波函數和束縛能的度得到了改進。
  19. In the latter, the non - linear dynamic stabilities of the single rotor system with a crack are researched. the non - linear differential equ ations have periodic coefficients. and using the stability theory of the periodic motion, it is discussed that the thickness of the disk, the position of the disk and the position of the crack have effects on the dynamic stabilities

    首先簡單討論了含裂紋的單盤轉子統的動力穩定,並與相的文獻作出比較,驗證了等效彈簧模型的正;然後,討論了含裂紋的單盤轉子統的非動力穩定,得到了一組具有周期數的非微分方程組,且利用周期運動的穩定理論進行了求解,深入討論了盤的厚度,盤所處的位置和裂紋所處的位置對轉子統動力穩定的影響。
  20. In section 2. 1, we introduce some of the recent research results about the relationship between the internal stability and external stability. in section 2. 2, we state some necessary background, definitions and basic facts about infinite - dimensional linear systems. in section 2. 3, we are concerned with the admissibility of the control operator and the observation operator of system ( 1. 1 ) - ( 1. 4 )

    第一節我們介紹有無窮維統內部穩定與外部穩定的最新成果;第二節我們介紹無窮維統的相背景、概念,以及其他一些主要成果;在第三節,我們討論統( 1 . 1 ) - ( 1 . 4 )的控制運算元與觀測運算元的相容;在第四節和第五節我們分別討論統( 1 . 1 ) - ( 1 . 4 )的外部穩定與內部穩定;第六節我們將證明開環統( 1 . 1 ) - ( 1 . 3 )的可觀測
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