脈動觀測 的英文怎麼說

中文拼音 [màidòngguān]
脈動觀測 英文
microseismic observation
  • : 脈名詞1. (動脈和靜脈的統稱) arteries and veins2. (脈搏的簡稱) pulse 3. (像血管的組織; 連貫成系統的東西) vein
  • : 觀名詞1. (道教的廟宇) taoist temple2. (姓氏) a surname
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • 脈動 : [物理學] [天文學] pulsation; pulsing; pulse; ripple; impulsive motion; pulsating; panting; loping...
  • 觀測 : observe; observation; viewing
  1. Methods the arteries of the heads of pancreas of 15 adult corpses were perfused with tincture and fixed with formaldehyde for the investigation into the direction and the distribution of the vessels in the 15 cases ' pancreas - duodenal molten specimen

    方法對15例染色劑灌注甲醛固定的成人屍體胰頭區的血管進行解剖研究,15例胰十二指腸鑄型標本的血管走行、分佈。
  2. 3. passive and active time - domain demodulation schemes were demonstrated based on a fiber bragg grating used as a tunable filter controlled by a piezoelectric stack, which was driven by an electrical sine wave signal. the measured strain applied on the sensor axially could be judged by observing the interval of the output between notches within a driving period in time - domain

    利用匹配濾波技術,分別採用無源和有源方式,藉助受pzt驅的解調光柵,將待應變信息變為時序負沖間隔的變化,利用常規的示波器同一掃描周期中兩負沖在時域中間隔的變化來確定待應變的變化。
  3. 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量的基礎上增加角度變化率及相對運的離心加速度等運學參數的單站無源量模型,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性進行分析並得到了相應的可條件;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目標跟蹤方法和模型,提出了利用角度及其變化率對機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,提出了幾種高精度沖序列多普勒頻率變化率的方法。
  4. Simulated experiments effects of intrathoracic pressure change on hemodynamics three models that simulated the anatomic arrangement of the venous return systems and chest cavity were established to investigate the hydromechanic principle of the different influence of the itpc on the ventricular fillings. effects of intrathoracic pressure change on the motion of interventricular septum ( ivs ) acuson ' s sequoia 512 ultrasonographic system was used in this study to record the m - mode and two - dimensional cineloop images of the simulated interventricular septum movement with different intrathoracic pressure changes

    指標察並記錄外周靜壓和模擬胸腔壓力分別變化及同時變化時,模擬右心室的容積變化;察並記錄模擬胸腔壓力變化時,模擬肺血管床和左心室內壓力的變化;用sequoia512超聲心圖儀察胸腔壓力變化對模擬心臟室間隔運的影響。
  5. 3. a three - dimensional - acoustic doppler velocimeter has been used to measure the velocity and turbulence in a compound channel with vegetated and unvegetated flood - plains. particulary in the interface region between main channel and floodplain. the distribution in three coordinate directions of velocity and turbulence intensities and the renolds stresses are presented. the momentum transfer at the main channel flood - plain interface can be described as an apparent shear stress which can be quantified as a function of the local turbulence at the interface

    採用adv對灘地種樹前後灘槽交界區域的流速場進行了量。分析了灘槽交界區域的垂線流速、紊強度和雷諾應力的變化。將灘槽交界的量傳遞描述為一表應力,這個表應力可以看作是交界面處的函數並將其定量化。
  6. Observation and analysis on shock wave and multiple pulsating caused by underwater blasting

    水中爆炸水擊波及其多次與分析
  7. From some characteristics observed, such as the short lift time, narrow frequency band, fast frequency drift, quasi - periodic pulsation, spike event and complex magnetic structure, it is considered that the radiation mechanism of these events may be principally due to the electromagnetic waves magnified directly by the instable electronic cyclotron

    從它們的特徵:短壽命,窄頻帶,頻率快速漂移,及尖峰事件與磁結構復雜的大黑子活區密切相關等,認為這些事件的輻射機制可能是電子迴旋澤不穩定直接放大電磁波所致。
  8. 3 ) open - water and self - propulsion tests for the hd propeller and mau propeller. 4 ) cavitation observation and pulsing pressure measurement

    3 )滬東型( hd ) mau圖譜槳的敞水試驗和自航試驗4 )滬東型( hd )螺旋槳的空泡察與壓力量。
  9. In order to decrease the cost, simplify the structure of the pmsm servo system and at the same has no effect on the system performance, this paper uses hall element as the position sensor, which has very low solution but very low cost, and in order to realize sinusoidal current drive of pmsm, this paper presents a new rotor position estimator based on flux estimation

    為了降低成本,簡化系統,本文採用低解析度的霍爾元件作為pmsm伺服系統的位置傳感器,採用基於磁鏈法的低解析度位置傳感器控制技術,來估計電機轉子的實時位置和轉速,實現電流的正弦換向,減小轉矩
  10. In chapter 3 the torque ripple minimization algorithm based on torque observation and instant torque control is studied as well as the fuzzy pid controller does

    在分析兩種轉矩抑制方法局限性基礎上,研究了基於轉矩的瞬時轉矩抑制演算法以及轉速環的模糊pid控制器設計。
  11. Unsteady separated flow, produced during the gate - opening period in the reverse radial gate tunnel of a high - lift shiplock, is characterized by negative pressure and high velocity as well as their intense fluctuations in space and time and could easily result in various harmful phenomena such as cavitation, gate vibration and sonic boom, which have been observed and confirmed by prototype and physical model tests

    高水頭船閘輸水反弧閥門開啟過程中,后廊道內發生急變分離流,負壓、高速水流以及壓力與流速的劇烈時空變化容易誘發空化空蝕、門振和聲震等有害現象已被原型和物理模型試驗研究證實。
  12. 8. a pulsating torque minimization approach based on disturbance observer is proposed. the new disturbance observer is designed to observe the unknown torque disturbance caused by the torque ripple, the varying of the motor parameters, the changing of load torque and the not ideal performance of the inverter

    該系統將負載轉矩、轉矩紋波以及由電機參數的變化引起的轉矩干擾作為系統干擾,用干擾器進行,以此為基礎對轉矩進行補償,實現對轉矩的抑制。
  13. Pulsation observation for architectural structure with earthquake - resisting rubber supports and performance analysis of mitigation earthquake for the rubber supports

    橡膠隔震支座建築結構脈動觀測與減震性能分析
  14. According to the selected project, a stability test with scale of 1 : 35 of cushion bottom had been done. with the research results of the experiments and the flow shape of xiao wan hydraulic power station were thought about, on the other hand, the ternary complex jet shape of baishan water cushion was analyzed, all this gave a base for the analysis of the force of the cushion bottom. through observation, the dynamic water pressure, the fluctuation pressure, the time - homogeneous pressure on the surface of the bottom and the characteristics of the fluctuation pressure could be got, also the calculation method and the test results were compared to get the argument

    針對選定的方案,進一步做了1 : 35比尺的水墊塘底板穩定性試驗;通過試驗及借鑒小灣水墊塘內水流流態的研究成果,分析白山水墊塘內三元復雜淹沒射流流態,為水墊塘內底板受力分析打下基礎;通過得到水墊塘底板水沖擊壓力、壓力、底板上下表面的時均壓力及壓力特性,並通過計算方法與試驗成果進行相互比較論證。
  15. Through the field observation and comparative seism - geologic studies, many seism - genesis soil - layer structures such as vibration - liquefied sand vein, vibration - liquefied sand dyke, sandy cobble dyke by fissure filling, seismic fall mass, seismic intra - layer fault and seism - settlement structures etc. were recognized

    通過野外和比較地震地質學研究,識別出了振液化砂、液化砂墻、裂隙充填砂質卵石墻、震塌落體、地震層內斷裂及地震沉陷構造等地震成因土層構造。
  16. Objectives : the purposes of the present study are as follows : ( 1 ) anatomical study inclulding observation and measurement on arterial, especially venous system of flap was performed to attempt to illuminate the regular patterns of the distribution of the arteries, veins and their branches in the axial vascular skin flap. ( 2 ) fathoming the origination, distribution, drainage scope and communicating path of deep and superficial veins or accompanied and unaccompanied veins. ( 3 ) elucidating the positions, shape and functions of venous valves in deep and superficial venous stem and its communicating branches, observing their affects on the venous blood circulation

    目的本課題的研究目的包括以下6項內容: ( 1 )對皮瓣的、靜系統,特別是靜系統進行解剖學研究,探索皮瓣內軸心、靜走行及分支分佈規律; ( 2 )闡明皮瓣內深、淺靜系或伴行靜與非伴行靜的起始、走行、引流范圍及交通途徑; ( 3 )皮瓣深、淺靜干及其交通支內靜瓣部位、形態、功能及對靜間血液流通的影響; ( 4 )明確皮瓣的、靜伴行特點與靜迴流規律; ( 5 )確定皮瓣靜迴流的主渠道; ( 6 )為皮瓣游離移植吻合靜的選擇,提供解剖學依據,並對跨區供血皮瓣靜迴流與交通、非生理性皮瓣的血液循環進行探索。
  17. 9. a fuzzy reasoning controller is designed to improve the performance of the mentioned disturbance observer. as the motor speed and load torque varying, the parameter of the disturbance observer can be changed by the fuzzy controller based on experiences. the pulsating torque can be compensated more strictly in a extended range

    9 、對基於干擾器的轉矩控制系統進行了改進,設計了一種模糊推理控制器,根據電機速度和負載轉矩的變化調整干擾器的增益,保證了轉矩控制系統的控制精度,並擴大了其運行范圍。
  18. This technique does not need the pro - knowledge of the motor flux. parameter deviations do not affect system performance substantially

    以此為基礎,設計了一種基於干擾器的轉矩控制系統。
  19. The dynamical characteristics of ground soil and structure of frequency spectrum of ground micro - tremor in fuzhou and quanzhou of fujian province are studied in this thesis. the ground microtremor signals were observed, and the signals were analyzed by fast fourier transform method ( fft ). the characteristics of structure of frequency - spectrum and response of ground soil to frequency of ground micro - tremor are revealed, and the function with frequency - dependence and frequency - selection of micro - tremor for different foundation soil strata is also researched

    本文以福建省福州市區和泉州市區場地土的力特性和地頻譜結構為研究對象,對福州市區和泉州市區等地進行了場地地試,利用快速傅立葉變換( fft )方法對到的地信號進行頻譜分析,研究了地頻譜結構特徵及場地土對地的頻率響應的特性。
  20. Objecties. to determine the mobility of the aorta relatie to the spine with the patient in prone and supine position

    目的:相對脊柱的位置在俯臥和仰臥位時的可移性。
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