脈動應力 的英文怎麼說

中文拼音 [màidòngyīnglì]
脈動應力 英文
fluctuating stresses
  • 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
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 脈動 : [物理學] [天文學] pulsation; pulsing; pulse; ripple; impulsive motion; pulsating; panting; loping...
  1. Based on the analysis of thermal contact metamorphic aureoles, granitoid interior structure, quartz axis fabric and strain characters in the different rock unites of yuanshishan granitoid and its wall rocks, the emplacement mechanism of yanshishan granitoid was studied. the magmatic explictite dynamic was advanced in light of regional stress and magma dynamic research. those conclusion was synthesized to ascertain the emplacement mechanism - granitic magma ascended in dikes with the minimum critical width of the magma ascending channels about 2. 213. 88m and located in the core of yindianshan dome with the passive style of dyke explictite ; the later unite is a kind of multiple emplacement mechanism with the character of active emplacement of ballooning

    同時運用巖漿動力學原理從另一個角度探討其侵位驅動力。綜上指出：經分凝后的活動性巖漿在深部側向擠壓和浮力的聯合驅動下，沿深大斷裂以最小臨界寬度為2 . 213 . 88m的裂隙脈動上侵，整體以巖墻擴展的方式被動定位於銀殿山穹窿的核部，但後期屋面前單元具有主動侵位的特點應為一種復合定位機制。
  2. The numerical results show that the time domain response of the laminated plates induced by the in - line force of non - steady component oscillating flow is similar to harmonic motion with certain ribbon which is formed by period motion

    計算結果表明，零均值流量脈動流順流向作用力誘發反對稱角鋪設層合板的時域響應近似於具有一定帶寬的諧波運動，而這一帶寬又是由一定周期運動形成的。
  3. 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。
  4. The characteristics of high pressure gyratory sprayed pumping discusses is presented, which is applicable in wide range of scope and ground layers, convenient for construction, long durability, wide source of materials. mechanism for subgrade strengthening : complex foundation of cement solid and earth between piles was formed by pulsant load of flowing pressure and spraying flow, water wallop, cavitation phenomenon, water wedge effect, extrusion force and air flow agitation etc so as to enhance foundation bearing force and reduce settlement and deformation

    高壓旋噴注漿技術具有適用范圍、適用地層較廣，施工方便，耐久性好，材料廣闊等特點；其加固地基機理主要是通過流動壓、噴射流的脈動負荷、水塊的沖擊力、空穴現象、水楔效應、擠壓力、氣流攪動等效應形成水泥固結體與樁間土的復合地基，從而提高地基承載力，減少沉降變形。
  5. Renin secretion is controlled by at least four mechanisms that are not mutually exclusive : a renal vascular receptor responds to changes in tension in the afferent arteriolar wall ; a macula densa receptor detects changes in the delivery rate or concentration of nacl in the distal tubule ; circulating angiotensin has a negative feedback effect on renin secretion ; and the sympathetic nervous system stimulates renin secretion via the renal nerve mediated by receptors

    腎素的分泌至少受四種互不排斥的機制控制：腎血管受體對向心小動脈壁張力變化的反應；緻密斑受體發現遠端腎小管內氯化鈉傳遞速率或濃度的變化；循環的血管緊張素對腎素的分泌的負反饋效應；和交感神經系統經由受體介導的腎神經刺激分泌腎素。
  6. 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測。分析了灘槽交界區域的垂線流速、紊動強度和雷諾應力的變化。將灘槽交界的動量傳遞描述為一表觀應力，這個表觀應力可以看作是交界面處的脈動函數並將其定量化。
  7. Motion - induced electromagnetic noise of antenna under random and fluctuant pressure

    天線在隨機脈動壓力作用下的運動感應電磁噪聲
  8. What is mainly discussed in this dissertation is as follows : the fault mechanism and vibration frequency feature of hydroelectric vibration are analyzed, induced and reorganized. the select and placement of detecting positions of parameters such as vibration, swing and pressure pulsation are researched, and the corresponding sensors are selected to monitor

    本文主要進行了以下工作：分析、歸納和整理了水電機組振動的故障機理和振動頻率特徵，對機組的振動、擺度和壓力脈動測點進行了選擇和布置，並選用相應傳感器進行監測。
  9. Abstract : as the heart of twt ， the structure stability of grided electron gun directly affect pulse output performance of twt ， and the structural reliability under vibration stress are especial - ly important for today ' s manufacturers

    摘要：柵控電子槍作為行波管的「心臟」 ，其結構的穩定性直接影響著管的脈沖輸出性能，特別是在振動應力下的結構可靠性更是當今生產單位關注的重點。
  10. An upper arm artery ' s ability to relax and expand to accommodate increased blood flow - - known as flow mediated dilation （ fmd ） - - was measured using high - frequency ultrasound before and after daily cocoa or placebo consumption

    在每日攝食可可或安慰劑前後， （研究人員）利用高頻超音波，對肱動脈因應增加之血流的舒張能力；亦即流量介導擴張（ fmd ）進行測量。
  11. Main content in simulation is the spatio - temporal evolution of the set of descriptive variables characterizing tectonic mineralization state under coupling of various processes as following : ( 1 ) variables related to forming and property of ore - forming fluid, such as dissolution rate of minerals ( include metal minerals ) in rock, concentration and saturation of aqueous species in fluid, temperature, pressure, and ionic strength etc. ; ( 2 ) variables related to structural deformation and fluid flow, such as stress, deformation rate, fracture network, porosity, fracture permeability ; ( 3 ) variables related to precipitation and mineralization, such as nucleation rate of gangue and metal minerals, accumulation precipitation of various minerals, etc. ; ( 4 ) spatio - temporal coupling relation of various variables above, such as the coupling relationship between spatio - temporal evolution of fracture permeability and flow and focus of fluid and ore - forming

    模擬的主要內容是在各種過程耦合作用下，以下描述構造成礦體系的主要變量的時空演化：與成礦流體的形成和性質有關的變量，如地層中礦物（包括成礦物質）的溶解速率、流體中各組分的濃度與飽和度、流體溫度、壓力、離子強度等；與構造變形和流體運移有關的各變量，如應力與變形速率、巖石孔隙度、構造（斷裂）滲透率等；與沉澱成礦有關的變量，如礦物（金屬礦物和脈石礦物）的成核速率、各礦物的沉澱量等；上述各有關變量間的時空耦合關系，如斷裂滲透率時空演化與流體流動、匯聚和成礦的耦合關系等。
  12. The hemodynamic change induced by embolization of the cerebral arteriovenous malformation was analyzed using the water hammer principle. the highest pressure that can be reached when the water hammer phenomenon occurs was calculated. the acute instantaneous pressure rising may be an important factor leading to intracranial hemorrhage or swelling when the avm is embolized. it is shown that long feeding artery of avm will increase the possibility of direct water hammer, and high wall shear stress of feeding artery will increase the water hammer pressure. this suggests that such kind of avms should be embolized stepwise and the systemic pressure should be rationally reduced before embolization

    以水擊原理分析了腦avm栓塞治療時血液動力學變化過程，計算了瞬時水擊壓力可能達到的最高值。瞬時增高的水擊壓力可能是avm栓塞時發生急性腦出血或腦腫脹的重要血液動力學因素。而avm供血動脈血管壁面切應力偏高和供血動脈過長可增加水擊的危險程度，提示對這類結構avm栓塞治療時應採取合理的降壓措施並盡可能分多次栓塞。
  13. The result indicates that the dynamic stress caused by hydraulic pulse at partial load is one of the important reason of the fatigue and cracks of the runner

    結果表明由於水壓力脈動引起的轉輪葉片上的振動交變動應力是混流式水輪機疲勞破壞的主要原因之一。
  14. The goal of this paper is, by serial / parallel combination technique of two - transistos forward converters ( ttfcs ), to keep the merits of the ttfc, and to overcome the shortages of it. the interleaving technique is adopted, while in combining ttfcs. the interleaving technique lowers the net ripple amplitude and raises the effective ripple frequency of the overall converter without increasing switching losses or device stresses

    組合式雙管正激變換器由雙管正激變換器串並聯構成，應用交錯控制策略，在保留雙管正激變換器功率開關管電壓應力低和可靠性高的優點同時，克服了等效占空比小、副邊二極體電壓應力高、輸出電流脈動大等缺點。
  15. The analysis of dynamic response of ship hull subjected to gas bubble impulsive pressure of underwater explosions

    水下爆炸氣泡脈動壓力下艦船動態響應分析
  16. By employing cole ' s classical theory of bubble dynamics, the motion of bubble produced by the underwater explosion and the corresponding bubble pulsating pressure are calculated. a profile function of the shock wave and its parameters are determined according to the principle of wave profile similitude and the equality of impulses. finally an analytic formula is derived to simulate the whole time history of the pressure from the front shock wave to the bubble pulsation, representing the fluid loadings of the underwater explosion

    木文首先應用庫爾的經典水下爆炸氣泡運動理論計算出氣泡的運動和脈動的壓力波形，再依據波形相似的原則尋找波形模擬函數，用沖量相等的原則確定波形參數，得出了從沖擊波到氣泡脈動壓力整個過程對水下爆炸載荷進行模擬的解析公式。
  17. The measurement system is based on pci bus and designed to integral measure the engine ’ s parameters such as pressure, engine rotate speed, air flux, etc. the system is very important in evaluatiang 、 ameliorating and repairing airplane engine because it provides relevant exam data for the airplane engine design

    該測試系統基於pci總線，對發動機的脈動壓力、轉速擺動、燃油流量等參數進行綜合測試，為航空發動機的研製提供相應的試驗依據，對發動機的性能評估、技術改造、故障維修等具有十分重要的意義。
  18. Numerical simulation of reynolds stresses influence on mean and fluctuation pressure

    雷諾應力對平均和脈動壓力影響的數值模擬
  19. The undesired effects of pulsating pressures or mechanical vibrations are counteracted by effective damping in the glycerine - filled version of the product ; stability and display quality are improved as a result

    在甘油填充型產品中，由於阻尼的作用，使得多餘的脈動壓力效應或機械振動得以消除，從而改善了產品的穩定性和顯示質量。
  20. Generally, under the situation of steady tested pressure, the maximum working pressure shall not exceed 2 / 3 of the upper limit value of the instrument ; while in measuring pulse pressures, the maximum working pressure shall not exceed 1 / 2 of the upper limit value of the instrument ; and while in measuring high pressures, the maximum working pressure shall not exceed 1 / 3 of the upper limit value of the instrument

    一般在被測壓力穩定的情況下，最大工作壓力不應超過儀表上限值的2 / 3 ；測量脈動壓力時，最大工作壓力不應超過儀表上限的1 / 2 ；測量高壓時，最大工作壓力不應超過儀表上限的1 / 3 。
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