common axis 中文意思是什麼
common axis
解釋
公共軸線-
In the terms of interpolation, the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character. 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation, the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation, the more number of summation and the more order of interpolation polynomial, the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation, the more of reconstruction time simultaneously, aimed at eliminating the effects of noise contained in projection data, in this paper, author analysis cause and effects of common artifacts. importantly, discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector
在ct圖像重建時，選擇有限帶寬窗有較好的空間解析度，三角形窗有較好的密度解析度，選擇餘弦窗則使得空間解析度與密度解析度的折衷；從窗函數的頻譜角度來講，可以用於圖像重建的一個良好的卷積窗函數應該具備以下條件： （ ? ）小的3db帶寬b ，即最小的主瓣寬度； （ ? ）最小的旁瓣最大峰值a ； （ ? ）最大的旁瓣峰值衰減速度d ；就內插函數而言，臨近點內插與線性內插重建圖像噪聲大，但有較好的邊緣與細節； 4 4三次內插、三次b -樣條與四次拉格朗日多項式內插圖像平滑，局部特性較好。 -
The main products now include analytical and preparative hplc systems ( pumps and uv - vis detectors ), dynamic axis pressure columns, common preparative columns, column packing pump systems and all kinds of hplc fittings
公司的主導產品目前有分析高效液相系統、制備高效液相系統、動態軸向壓縮系統、常規、特型制備色譜柱、裝柱系統以及液相色譜儀的附件、備件等。 -
This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization
半整體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-土的共同作用；臺後土抗力升溫時採用靜止土壓力加彈性土抗力，降溫時採用主動土壓力；分析橋梁受力性能時考慮了結構自重、車輛荷載和季節性溫變荷載的作用。以一座橋長100mpc半整體式橋臺無縫橋梁為實例，採用大型通用軟體ansys建立平面框架模型，進行彈性、大變形分析，模擬全橋受力和變形特點；同時建立與此對應的有伸縮縫橋梁和整體式橋臺無縫橋梁有限元模型，通過三種橋型同步加載對比分析，研究半整體式橋臺無縫橋梁獨特的受力特點和結構性能，總結其設計控制因素和構造要求。通過本文研究知：半整體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近，結構整體剛度增大，併除去了伸縮縫病害；但主梁增加了軸力，下部結構剪力、彎矩較梁式橋大；綜合分析是一種受力合理有實踐和推廣價值的橋型。 -
Horizontal - axis turbines are the most common wind turbine design
水平軸渦輪機是最常用的風力渦輪發電機。 -
Finally, the schwarzschild objective of euvl is assembled and aligned on the common - axis illuminated structure with the wfe of 0. 0202x ( a, = 632. 8nm ) rms. using an off - axis circular subaperture of the full annular pupil, the wfe of the schwarzschild objective is 0. 0144a, ( x = 632. 8nm ) rms
最終對euvl系統中的schwarzschild微縮投影光學系統進行裝調，驗證了系統裝調的收斂性，裝調后系統的最終波像差為0 . 0144 rms （ = 632 . 8nm ） 。 -
The principle of realtime trajectory correcting single detector compound axis control in photoelectric tracking system was introduced through comparison between this method and common single detector compound axis control track method
本文在對比一般單檢測型復合軸控制方法的基礎上給出了實是軌跡修正單檢測型復合軸控制方法的原理，速度修正所使用的預測濾波方法，以及跟蹤實驗結果。 -
Here is the method of improving the mc nylon straight gear. it is common to apply a series of technology to assure the fixing between the gear and axis, including
這里提供改進mc尼直輪適用性的方法，通常採用一系列的技術來保證輪與軸之間的固定，包括： -
The most common being horizontal axis machines ( hawt ), fewer vertical axis machines are available commercially
最常用的是水平軸渦輪機（ hawt ） ，商用的垂直軸渦輪機很少用。 -
Although vertical axis wind turbines have existed for centuries, they are not as common as their horizontal counterparts
盡管垂直軸渦輪機已經存在幾個世紀，但是並不如水平軸渦輪那麼通用。 -
The mechanisms and conditions for the mechanisms to adjust itself were analyzed in detail. an accurate method of analyzing for the properties of the mechanisms without overconstraints was given for the first time, we obtained the equations of self - adjusting displacement in the cylindrical pair, the allowable kinematic - pair - axis errors which enable the mechanisms realize function of self - adjustment, and the most rational arrangements of kinematic pairs for the three common four - bar mechanisms. the results of analysis show that the influences of the errors of crank - pin on the self - adjusting properties of the mechanisms are bigger than that of the other pairs
（ 3 ）詳細分析了無過約束機構能夠實現自調的機理及機構能夠實現自調的條件，首次提出了無過約束機構自調性分析的一種精確方法，得到機構自調時圓柱副中的自調位移規律和機構能夠實現自調的運動副允許誤差角以及三種常用平面四桿機構的自調結構的最適宜的運動副配置方式。 -
Having or mounted on a common axis
同軸的有或裝上共同軸的 -
The schwarzschild objective with eccentric aperture and off - axis illumination is designed on the basic of common - axis illuminated structure. a detailed theoretical analysis of the alignment is taken. the mathematical model is established and the relation between aberration and construction is described
對計算機輔助計算的精密裝調技術進行了詳細的理論分析，建立了數學模型，闡明了像差與各個結構參數的相關性，分析影響各種像差的主要因素，制定了裝調方案。
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