脈動流化床 的英文怎麼說

中文拼音 [màidòngliúhuàchuáng]
脈動流化床 英文
pulsating fluidized bed
  • 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
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 床 : i 名1 （供人睡覺的傢具） bed; couch 2 （像床的器具、地面） something shaped like a bed Ⅱ量詞（用...
  • 脈動 : [物理學] [天文學] pulsation; pulsing; pulse; ripple; impulsive motion; pulsating; panting; loping...
  1. 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
  2. Aim to evaluate the feasibility of one simple method to establish model of venous thrombosis for studying the therapeutic effect of intracavitary ultrasonic therapy on venous thrombus of animal models. methods the lower limbs of 20 dogs were divided randomly into the experimental group and the control group. the femoral veins of the experimental group were ligated at the close and distant end respectively to slower the flow of blood. the veins in control group were operated but not ligated. then, the changes of the dogs ' lower limbs were observed and the femoral veins were excised for pathological examinations and examined to investigate the condition of thrombis in the veins at the 1st, 4th and 7th day respectively after operation. results all the dog ' s lower limbs in the experimental group swelled and were lame slightly, the thrombus came forth in all the 6 veins by pathologic study at the 1st day after operation. and it was opposite in the control group. in addition, the swelling of all the dogs ' lower limbs was aggravated and all the 14 femoral veins were filled with compact mixed thrombus at the 4th and 7th day after operation. and it was also opposite in the control group. conclusion the method to establish models of venous thrombosis by the simple ligation of close and distant end of the femoral veins can make thrombosis more approaching clinical course of thrombosis and is satisfying

    目的為研究腔內超聲溶栓對動物模型靜脈血栓的療效而評價一種制備靜脈血栓模型方法的可行性.方法犬20隻採用自身對照研究，犬一側後肢股靜脈為實驗側，另一側為對照側.實驗側行股靜脈近、遠端分別結扎，人為造成犬後肢股靜脈血流緩慢;對照側行手術，但不結扎血管.然後于術后第1 ， 4 ， 7天分別觀察犬後肢變化，切取血管標本做病理觀察，了解血栓形成情況.結果術后第1天實驗側全部出現後肢腫脹，輕微跛行，病理切片顯示: 6條靜脈全部都形成血栓;對照側沒有出現後肢腫脹及跛行， 6條靜脈都無血栓形成.第4 ， 7天實驗側後肢腫脹加重，跛行，病理切片顯示:實驗側14條靜脈血栓充滿管腔，為混和血栓;對照側沒有出現後肢腫脹及跛行， 14條靜脈無血栓形成.結論採用靜脈單純結扎法制備犬靜脈血栓模型，血栓形成更接近臨床血栓形成過程
  3. In this paper. flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is studied. according to characteristic analysis, the model of completely mixing reactor in series is introduced to characterize real reactor as a theoretical model. on the basis of analog computing analysis and discussion of theoretical model. by means of pulse tracer method, experiments on residence time distribution ( rtd ) have been done in different conditions including the change of tracer level, feeding flow rate and circulation flow rate. the result shows when the ratio of circulation flow rate and feeding flow rate amounts to at least 4, the flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is very close to the model of completely mixing reactor in series. an amendatory model has been established by the regression method

    作者首先在對反應器進行特徵分析的基礎上，建立了描述中試規模多級外循環流化床生物反應器流動特性的串級全混流模型，並對理論模型進行了模擬計算分析和討論，在此基礎上，作者分別在無循環和有循環（改變示蹤劑用量、流加流量和循環流量）的條件下，利用脈沖示蹤法對一到五級串聯外循環流化床反應器進行了停留時間分佈實驗，結果表明，在循環流量與流加流量的比值達到大於等於4時，中試規模多級外循環流化床反應器的流動特性接近串級全混流模型，通過數據回歸擬合的方法，建立了中試規模一到五級串聯外循環流化床反應器的流動模型。
  4. After the discussion of the algorithm of complexity parameters, lyapunov exponent and apen, the pressure fluctuation in fluidized beds is analyzed quantitatively. the effect of different operating conditions, such as variant gas superficial velocities, axial positions and static bed heights, is discussed

    在討論復雜性參數、 lyapunov指數、近似熵的演算法基礎上，對流化床壓力脈動進行定量分析，討論了表觀氣速、軸向位置、靜床高等不同操作條件對混沌特徵參數的影響及其對應的動力學規律。
  5. Based on a large amount of experimental data, nonlinear analysis, such as complexity theory, and approximate entropy ( apen ) which is adopted systematically in the fluidization research the first time, are implemented in the time series analysis of pressure fluctuation and particle concentration in gas - solid fluidized beds, and the nonlinear characteristics of fluidized beds are discussed comprehensively

    本文在大量實驗數據基礎上，將非線性方法，包括復雜性理論，以及首次被系統引入流態化研究的近似熵，應用到氣固流化床壓力及顆粒濃度脈動時間序列分析中，較為系統地探討了流化床的非線性特徵。
  6. Clinical significance of portal vein hemodynamics measuremens in patients with cirrhosis and esophageal variceal bleeding

    肝硬化食管靜脈曲張大出血患者門脈血流動力學檢測及其臨床意義
  7. In this thesis, the fields of velocity in the area near the wall and the core area are discussed in stress. thinking about the fluctuate characters of flow in cfb boiler, the rules of particles flow is summarize according to macro analysis

    文中著重對近壁區和中心區的速度場進行了討論，分析了不同的工況條件下，顆粒的速度變化趨勢，結合循環流化床流動的脈動特點，從宏觀上總結出顆粒流動特性。
  8. Atherosclerotic lesions long have been known to occur near vascular branching points. study have identified in these predisposed areas, hemodynamic shear stress, the frictional force acting on the endothulial cell surface as a result of blood flow, is weaker than in protected regions

    從對動脈粥樣硬化的臨床及病理研究中，我們已確定動脈粥樣硬化好發于血管的分支及彎曲處，該處血流方式不同於血管的其他部位。
  9. The existing results about scour hole was summarized. experiments was made about the influence of aeration on scour, the dynamic pressure on the original riverbed and the scouring hole bottom, and the influence of aeration on the dynamic pressure and the velocity of submerged jet. scour was simulated by numerical model

    在總結前人研究成果的基礎上，試驗研究了摻氣對基巖沖刷破壞的影響；基巖沖刷過程中沖坑底部脈動壓強隨沖坑深度的增加而變化的特性；摻氣對沖坑未形成前河床底部及基巖沖刷坑底部脈動壓強的影響；摻氣對射流軸線流速變化的影響等。
  10. Pressure fluctuation time series in gas - solid fluidized beds contain many dynamic information, such as particle characteristics, operating conditions, bubble behavior. in the paper, nonlinear analysis is adopted and implemented so as to understand the fluidization from a new viewpoint in depth

    氣固流化床壓力脈動時間序列包含了床層運動的許多動態行為信息，包括顆粒特性、操作條件，氣泡行為等，文中應用多種非線性方法來對其進行研究，以期能從新的角度來更深入地認識流態化規律。
  11. The stenosis degree and the bifurcation angel can vary at will according to any requirements specified, the universal program was set up, which can be developed into an individual oriented, real - time and clinically practical program to provide more valuable reference for the surgeon in the clinical diagnosis and disease prediction

    因此，本項目有著良好的應用前景，它不僅可以提供動脈粥樣硬化形成和發展的血流動力學機理，而且可以形成動脈粥樣硬化血流動力學參數的檢測和分析方法，可進一步應用於動脈粥樣硬化的臨床診斷。
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