脈動變化 的英文怎麼說

中文拼音 [màidòngbiànhuà]
脈動變化 英文
impulsive variation
  • 脈 : 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
  • 脈動 : [物理學] [天文學] pulsation; pulsing; pulse; ripple; impulsive motion; pulsating; panting; loping...
  1. Hemodynamic changes in combined operation of portal azygous devascularization with mesocaval shunt for portal hypertension

    斷流加分流聯合手術治療門靜脈高壓癥的血流動力學變化
  2. One cardiac cycle is divided into 50 parts in the transient analysis to accurately simulate the continuous pulsatile blood flow in the coronary artery, the hemodynamic parameters of the atherosclerotic and the controlled models at each of the 50 moments were computed in accordance with the physiological condition

    這些計算包括：脈動流情況下的非狹窄和狹窄不對稱性對狹窄流場的影響，分岔角度變化時動脈狹窄和非狹窄的各種血流動力學參數的計算模擬。
  3. For example, if there is a planet orbiting around the neutron star, it will wobble a little and the pulses will come a little early or late. we can then deduce the mass and the radius of the orbit of the planet from the arrival time of the pulses. this is how the first extrasolar planet is discovered

    例如假若有一顆行星圍繞一顆中子星運行，它會令中子星出現搖動，引致脈沖的間隔變長或短，由此我們根據脈沖周期的變化，可推斷出行星的質量和軌道半徑，這亦是天文學家找出第一顆地外行星時所用的方法。
  4. Study of plasma fibrinogen and serum troponin in acute coronary syndrome and stable angina

    在急性冠狀動脈綜合征和穩定型心絞痛中的變化研究
  5. The substantial alteration by 160 % in the range of the blood flow pulsation can negatively affect the function and plasticity of the blood circulatory system and may potentially lead to the development of hypertonic or hypotonic symptoms in the human body

    在血流脈動范圍內，透過160 %相當可觀的變化，可能對血循環系統的功能及塑性具負作用影響，並且可能潛藏在人類身體導致張力亢進或低壓癥狀的發展。
  6. Simulated experiments effects of intrathoracic pressure change on hemodynamics model i and ii tests demonstrated that the same itpc had different actions on the simulated ventricular fillings. the itpc would not change the pressure in the simulated right heart but its volume while it changed the pressure in the simulated left heart without direct influencing on its volume

    模擬實驗胸壓變化對血流動力學的影響3第四軍醫大學博士學位答辯論文外周靜脈壓和模擬胸腔壓力變化相同時所引起的右心室容積的變化是相同的；當兩者同時同步變化時，右心室容積無變化。
  7. The dynamic sif variation was found to lag behind the stress-pulse impingement by several microseconds.

    人們發現，動態應力強度因子的變化滯後於應力脈沖沖擊幾微秒。
  8. Water feeding framework takes electromagnetism water valve as administration component and is added relief valve for stabilizing hydraulic pressure ; the system has large, middle and small water valve that changes unlock combination of electromagnetically operated valve, which can get seven different water flux ; if it is necessary, it should adopt microseism water feeding that can make water feeding get stepless timing

    3加水機構加水機構採用電磁水閥作為執行元件，加入調壓閥穩定水壓，系統共設大中小三路加水閥，變化電磁閥的開啟組合，可以得出7種不同的加水流量，必要時採用脈動加水法，可使加水達到無級調速。
  9. Recent observations during spaceflight or by ground simulations have both suggested that adaptive alterations in the arterial vasculatures may play a pivotal role in the occurrence of postflight orthostatic intolerance

    近年地面模擬研究及航天觀察均表明，動脈血管的適應性變化在飛行后立位耐力不良發生中可能起重要作用。
  10. As the vectors go around, the amplitude of the sum vector gets bigger, and smaller, and the intensity pulsates.

    在矢量旋轉時，合矢量的振幅時而變大，時而變小，因而強度作脈動變化。
  11. Objective : to investigate the effect of pumpless portosystemic bypass in clinical piggyback liver transplantation. methods : after catheterized inferior mesenteric vein, the silastic catheter ( filled with heparin saline ) was connected with the catheterized tube of internal jugular vein or subclavian vein in four piggyback liver transplantation patients. the channel was opened after the portal vein was occluded. the portal vein blood poured into the superior vena cava through the pumpless channel. the changes of mesenteric congestion, portal vein pressure, blood pressure and pulse were observed. results : during the occlusion of portal vein, the portal vein pressure was increased greatly, the intestine was congested and swelled obviously and the blood pressure and pulse fluctuated gently. after the pumpless bypass opened, intestinal congestion and swell were abated markedly, the portal pressure, blood pressure and pulse gradually returned to normal range. conclusions : pumpless portosystemic bypass shows a great effect on clinical piggyback liver transplantation. it is a feasible and economical method

    目的探討背駝式原位肝移植術中採用體外門-體靜脈無泵轉流的臨床效果.方法4例行背駝式原位肝移植患者，腸系膜下靜脈屬支插管經體外硅膠管（充滿肝素鹽水）與頸內靜脈或鎖骨下靜脈插管相接，在阻斷門靜脈后開通腸系膜下靜脈插管，門靜脈血從體外無泵轉流管流入上腔靜脈，觀察轉流前後腸道瘀血、門靜脈壓、血壓、脈搏等變化情況.結果門靜脈阻斷后腸道明顯瘀血、腫脹，門靜脈壓力明顯升高，血壓、脈搏有不同程度的波動，無泵門靜脈轉流開放后，腸道瘀血、腫脹明顯好轉，門靜脈壓力逐漸恢復正常水平，血壓、脈搏恢復正常.結論背駝式原位肝移植術中體外門-體靜脈無泵流具有方便、經濟、實用等優點，具有良好的臨床效果
  12. Venation wave spectrum analysis finds out shape - structure change of mid - frequency signal fluctuation

    脈絡波譜圖分析查明了中范圍（頻率）信號波動的形態結構變化。
  13. Then the arterile eminted intertubular capillaries and peritubular capillaries forming rope - ladder - like pattems. then the venule were collected and became testis veins, then mass into rete venosum, finally some venule formed pampiniform plexus and others entered into varicosity. 3. changes or testicular microvascular architecture : testicular capillary vessel formed intertubular capillaries and peritubular capillaries. but donot formed rope - ladder - like patterns capillary net in postnatal 3 weeks. there were rope - ladder - like patterns capillary nets around seminiferous tubules in postnatal 3 and 12 months

    微血管構築的增齡變化： 3周齡組睪丸動脈在實質內已形成了管周微動脈和管間微靜脈，但繩梯狀的毛細血管網尚未形成； 3月齡組與12月齡組微血管構築呈中文摘要現定的構烈特點，在生精小管周圍形成繩梯狀的毛細血管網: 18月與24月齡組蘋丸萎縮，微而管構築變得不很規則。
  14. 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驅動的解調光柵，將待測應變信息變為時序負脈沖間隔的變化，利用常規的示波器觀測同一掃描周期中兩負脈沖在時域中間隔的變化來確定待測應變的變化。
  15. 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。
  16. 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脈動變化容易誘發空化空蝕、門振和聲震等有害現象已被原型觀測和物理模型試驗研究證實。
  17. 4. the uncertainty of quasi - dynamic pressure corresponding tables is analyzed systemically. according to the data obtained from the calibration process by varying the pulse width, the regulation of error on consulting the quasi - dynamic pressure corresponding tables caused by the variation of the pressure pulse width is explained. and the applicable scope of the 6ms quasi - dynamic pressure corresponding tables is discussed

    4對準動態校準之動態壓力對照表進行了系統的不確定度分析，利用變脈寬校準數據，闡明了由於被測壓力脈寬變化引起的查表誤差的規律，根據該不確定度計算方法，探討了測壓銅柱、測壓銅球用6 . 0 0 . 6ms準動態校準壓力對照表的適用范圍。
  18. Pulsating variables are stars that are continuously expanding and contracting and therefore show variations in brightness

    例如脈動變星就是恆星本身不斷膨脹收縮，造成光度亦出現相應的變化。
  19. This paper revealed an optimized strategy to search for systolic array transformations for nested loops, when the upper and lower bound of inner index was affine functions of there outer loop indexes

    對于多重循環中，當內層迭代的上下界為外層迭代的仿射函數時，介紹了搜索脈動變換的一個優化策略和相應的自動化演算法。
  20. The variation regulation of error by consulting the dynamic pressure corresponding table is got theoretically. it has been testified that the regulation is right

    從理論上得到了被測壓力信號脈寬變化時，查準動態壓力對照表的誤差變化規律，經實驗證明該規律是正確的。
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