short-axis 中文意思是什麼
short-axis
解釋
短軸位-
Sonographic examinations of the pancreas were performed by sagittal scanning at the epigastrium ; the long axis and short axis of the oval cross - sections of both the pancreatic head and body were measured
檢查測量的方式是在上腹部作縱向掃描，可以分別得到胰臟頭部與體部之圓形縱切面造影，進而分別測量胰臟頭部與體的長軸與短軸，一共為4個胰臟因數。 -
The research on attenuation features of intensity in the yunnan region by using intensity isoseismals of 127 earthquakes, and the following three conclusions have been put forward : ( 1 ) average ratio values of long - axis to short - axis of innermost isoseismal in the yunnan region is larger than eastern china and smaller than western china
摘要本文利用127次地震等震線資料，對雲南地區地震烈度衰減特徵進行了研究，其結果表明： （ 1 ）雲南地區地震烈度極震區等震線的長軸、短軸之比的均值，高於我國東部地區而略低於西部地區的平均值，烈度衰減方向性強。 -
Since all the physical parameters had better correlations with the long, rather than the short, axis of the pancreas, this indicated that the growth of the pancreas in children is primarily in the craniocaudal direction rather than the anteroposterior direction
因為身高，體重，體表面種與年齡等4個因數與胰臟長軸的相關性都比短軸為佳，這可顯示出孩童胰臟之成長，主要是在頭尾徑，而非前後徑。 -
The results indicate any elliptically polarized light can be compensated to become lineally polarized light throught / 4 wave - plate as long as the fast - axis ( slow - axis ) of / 4 wave - plate and the long - axis ( short - axis ) of elliptically polarized light are in the same orientation, but partially polarized light cann ' t
結果表明，只要/ 4波片的快（慢）軸與橢圓偏振光的長（短）軸方位一致，則任何橢圓偏振光經過/ 4波片后均可以補償為線偏振光，而部分偏振光經過/ 4波片后仍為部分偏振光。 -
The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。 -
The finite element model and result are given. the influence on displacement of different finite element model ' s lateral boundary and the cavities " radius and the variety of dynamic stress concentration at different ratio of long - axis divided to short - axis and material are discussed
給出了有限元模型和計算結果，討論了有限元橫向邊界不同和孔徑大小不同的情況下對位移的影響，還討論了不同長短軸比和不同材料情況下動應力集中系數的變化。 -
Through the studies of the invariants of the single axis motions, computational theories have been developed in this thesis to provide practical solutions for the problem of structure and motion from fitting the corresponding points in the whole sequence to its conic locus or conies for short. it is then shown that all single axis geometry can be directly computed either from one conic and one fundamental matrix or from at least two conies. the rotation angles then can be calculated directly from using the laguerre formula
本文通過詳細分析單軸旋轉運動中的不變量，利用物體點在單軸旋轉運動中軌跡為圓，而在圖象平面的投影為二次曲線的這一特徵，以二次曲線為分析的基元，研究了求解單軸旋轉運動結構問題的新理論和一系列新演算法，並在此基礎上完成了物體的三維重建等工作。 -
According to video - recording in the field and computing by making programs, several gravel parameters, such as perimeter, area, long and short axis etc., were gained and the appearance coefficient and variety along the river were computed
通過野外采樣錄象，室內編程計算，初步得到卵石的周長、面積、長短軸等基本參數，計算了形狀系數及其沿程的變化規律。 -
Embryonic shield and its neighboring areas were especially highly stained and cortactin marked the cells undertaking active convergencing movement. the stained areas were belt - like along the anterior and posterior axis, firstly short and wide, with the progression of gastrulating, the stained belt was extending interiorly and narrowed, but the anterior and posterior terminals were sustainedly highly stained
在原腸中期后，染色區域沿胚胎前後軸呈帶狀分佈，最先出現的染色區域寬而短，隨著原腸化的進行，帶狀的染色區域延伸並逐漸變細，在遷移中，胚盾區域的染色始終很強。 -
New methods for noninvasively detecting pulmonary pressure and left ventricular end - diastolic pressure manometer that measures megative pressure in mmhg was connected with the examined subject through a mask. the manometer is a remodeled sphygmomanometer for routine peripheral arterial blood pressure measurement that is market - available. the examined subjects were asked to carry out muller maneuver slowly so that the intrathoracic pressure decreases gradually while the blood flow of the right ventricular outflow tract observed with pulsed doppler echocardiography at the parasternal short - axis view of the great vessels in the two - dimensional echocardiography
肺動脈壓和左室舒張末壓無創測定新方法隨機選取有肺動脈瓣返流受檢者，根據我們提出的假說，人為地降低胸內壓（附加胸腔負壓） ，當降到肺動脈內壓力等於或小於右室壓時，肺動脈瓣即可開放，用多普勒超聲心動圖法可以探查到肺動脈瓣上的前向血流，此時的肺動脈壓應該為附加胸腔負壓的絕對值加上右室壓。 -
Using the method of transforming the value of diameters to the value of coordinate, we can resolve the problem of measuring the long and short axis " positions and sizes
應用直徑值變換為坐標值的方法，解決了確定長短軸位置和大小的問題。 -
The table is a important device in the hardware - in - the - loop simulation system, and it simulates the flight of unmanned aerial vehicle so as to achieve flying parameters from those sensors. the signals of sensors in the table are transmitted by many cables previously, thus it confines the movement range of the three - axis frameworks. as the perfomance of uav become complicated, the signals cables are replaced by wire rings in some tables, but it brings many difficulties and unreliable factors for the simulation table ’ s design also. bluetooth, as a new short - range wireless communication technology, is a reasonable and feasible scheme in this condition
三軸模擬轉臺是無人機地面半實物模擬系統中的重要設備，用來模擬飛機在空中的姿態和角運動，以驅動傳感器產生飛行姿態、角速度及角加速度信號。早期轉臺上傳感器信號通過穿在框架中的電纜進行傳輸，這就限制了框架的運動范圍。隨著無人機任務的復雜程度不斷提高，出現了採用導電滑環傳遞信號的模擬轉臺，但這也給轉臺設計帶來了困難，且存在不可靠因素。 -
Each specimen is mounted with its long axis horizontal and its short axis at a 45 degree angle
每一試片以長軸呈水平、短軸呈45方式固定。 -
The key element of good breaststroke swimming is based on the principle of short axis rotation : pulsing motion with your chest, similar to what you see with butterfly swimming
游好蛙泳的關鍵在於圍繞短軸的轉動:即由胸部引發的脈動，類似於所見到的蝶泳 -
Yff cable series want a temperature between - 20 and 60 ; allowed long - period working temperature 70. bending radius of the cable on less than 10 times of short axis diameter
Yff電纜系列的使用環境溫度為- 20至60 ；允許長期工作溫度為70 ；電纜彎曲半徑不小於電纜短軸尺寸的10倍。 -
The paper analyzed the struture of the tri - eccentric butterfly vavle at length, defined the tri - eccentric butterfly valve, educed the geometry function and its characteristic about the section of the butterfly disc. the results indicate : the parallel contour line across butterfly disc thickness is normal ellipse, thereby eslablished function relations between its geometry parameters ( long axis and short axis ) of three primary sections of the butterfly disc and the tri - eccentricity ; in order to avoid interference between the butterfly disc and the valve seat as well as the valve body, combining the torque, we obtained the feasible range about the rotation center of the tri - eccentric butterfly vavle
本文主要分析了三偏心蝶閥的結構，給出了三偏心的定義，推導出了蝶板截面的幾何方程及其性質，結果表明，沿蝶板厚度的平行截面輪廓線為標準的橢圓形，進而推導出了蝶板幾個主要截面的幾何參數（長軸、短軸）與三個偏心之間的函數關系；考慮到蝶板啟閉過程中避免與閥體及閥座發生干涉，結合蝶板的啟閉扭矩，確立了三偏心蝶閥回轉中心的適宜區域。 -
The optimization design of the crank - connect rod mechanism was carried out. collocating the mass reasonably, adjusting the ratio ( ( 1 - f ) / f ) of the long axis to the short axis of the ellipse track, adjusting the direction of long axis to the direction where the internal - combustion engine was not sensitive to the stimulating force. all the above contribute to the max reduction of the vibration
對單缸內燃機的曲柄滑塊機構進行優化設計，合理的布置加配質量的大小和方向，對軌跡橢圓的長短軸比率（ 1 - f ） / f進行調整，將長軸方向調整到內燃機對激振力不敏感的方向，從而使不平衡力對內燃機所產生的振動最小，以某一具體的單缸內燃機為例進行了計算分析。 -
Medial axis transform, short for mat, which is one of the hot topics in digital image processing, is used in many areas
中軸變換具有廣泛的應用，是數字圖像處理研究的一大熱點。 -
There is short of specific and simple calculating method to obtain the cavity axis ' orientation, especially for the rocks with many fractures
然而如何設計洞室軸線走向與破裂面走向大角度相交，一直缺乏具體而簡易的計算方法，尤其在破裂面較多且產狀明顯不同時，這個問題更為突出。
分享友人