流動變量 的英文怎麼說
中文拼音 [liúdòngbiànliáng]
流動變量
英文
flow variable-
In this paper a kind of cardio - cerebral arterial bifurcation vessel hemodynamic characteristics are studied with the boundary element method, and the blood flowing velocity vector distributions have been calculated. in addition, the flow field distribution and the pressure on the particle surface are also calculated, when there is flow - round particle at the place of bifurcation, the move tendency of the particle is judged, the possible reasons of causing the atherosclerosis, thrombus, angioma are analysed
本文用邊界元方法研究了一類典型心腦動脈分支血管中血液流動的流體動力特性,計算了分支血管血液流動的速度矢量分佈,同時計算了分支附近有多個顆粒狀繞流物時血液的流場分佈,及顆粒物所受壓力狀況,給出了顆粒物的運動趨勢,分析了引起粥樣斑塊病變、血瘤、血栓的可能原因Bargainer quantity change of stock market and liquidity research
股票市場交易者數量變動及流動性Also a refined - pulp quality predictive model, with specific energy, specific load as the model inputs, and beating degree, wet weight as the model outputs, is presented. simulation results show that the models can be acted as theoretical bases for the automatic control of high - consistence pulp refining process
即,建立了以原漿流量、白水流量、盤磨機功率為輸入變量,比能量、比負荷、濃縮機漿位為輸出變量的動態模型,以及基於比能量、比負荷的成漿質量預報模型。Brings forward the basic network cell model of symmetrical blast vault and asymmetric blast vault. then studies and analyses airflow in vault of main voltage switchyard hall of xiluodu hydropower station which is far cry and large numbers of airflow conflux, brings forward concept of “ virtual embranchment ” and corresponding basic network cell model, regresses calculate expressions of flux uniformity coefficient and impedance of “ virtual embranchment ” of vault of main voltage switchyard hall of xiluodu hydropower station
而後又採用cfd數值模擬的方法對溪洛渡水電站主變洞排風拱頂這種多股氣流匯流的長距離通道內的氣流流動進行了分析,提出了「虛擬分支」的概念和相應的網路基元模型,並回歸得到了溪洛渡水電站主變洞排風拱頂各個排風「虛擬分支」風量均勻系數以及阻抗的計算公式。Firstly, second harmonic component ratio and dead angles of two phase inrush ' s dispersion in three - phase transformes are acted as input variable. secondly, the method applies improved algorithm based on the original algorithm of multi - layer forward back propagation network, that is to say, adding last variational effect of weight value and bias value to this time and making use of variable learning rate. at the same time, this method also adopts dynamic form in the number of hidden floor node
首先,文中將三相變壓器兩相涌流差流的二次諧波含量比和間斷角作為網路的輸入變量;其次,利用對原有bp網路訓練演算法基礎上的改進型演算法(即在計算本次權值和閾值的變化時增加上一次權值和閾值變化的影響以及採用變學習率,與此同時隱含層神經元個數採用動態形式) ,通過樣本訓練使網路結構模型達到最優。The result of this paper were : 1 ) the market mircrostructure of chinese stock is ' nt market maker, two - part stock can n ' t circulate and the scale of current stock is small, so, filling right effect make dividend event do n ' t diluate the price, the stock price could n ' t reach optimal price ; 2 ) the meanings of bid - ask speed in chinese has been changed, did n ' t reflect the real trade cost, only reflect the possible trade cost, contained desire of price popple, din n ' t belong absolute liquidity again ; 3 ) turnover rate is a liquidity ' s index, speculation ' s index too, which can explain one side of liquidity, but this index is defective in chinese stock market ; 4 ) martin index was decrescent when dividend event occurred, display the liquidity of stock was improved, so, the martin index is compatible index to measure chinese stock liquidity ; 5 ) stock dividend event affect the liquidity in the stock dividend day, stock dividend event can n ' t dividend event in the bulletin day ; 6 ) the quantity stock dividend and trend of stock market was significant factors that affect the liquidity
本研究的結論是: 1 )中國股票市場的微觀交易結構並不是採取做市商制度,且2 3的股票不能流通,流通股規模很小,存在著股票股利事件后的快速「填權」效應,使股票價格快速回升,股票股利發放事件的稀釋價格作用無法發揮,也就無法達到「最適價格」 ; 2 )中國股市的買賣價差的含義發生了變化,不再是實際交易成本的反映,只是可能交易成本的反映,因而很大程度上代表了股價的波動意願,並不具有完全意義上的流動性含義。 3 )就換手率而言,它既是流動性的衡量指標,也是最常用的衡量投機性的指標。換手率指標只能說明流動性的一個側面,在中國衡量流動性是有缺陷的。In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane
本論文系統研究了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題,具體成果和創新點如下1 、根據流體力學理論,建立了螺旋槳推進器的動態模型,它以螺旋槳來流速度v _ p和螺旋槳轉速n為狀態變量,以電機施加轉矩為輸入,螺旋槳推力t和轉矩q為輸出。In hydraulic systems, the flow rate of the fluid may be considered as a through variable, and the pressure causing the flow may be the across variable.
在水利學系統中,流體的流速可考慮作流通變量,而引起流動的壓力可考慮作跨接變量。In steady flow, mass flux is constant.
在穩定流動中,質量通量是恆定不變的。Several regression models, with an independent variable of sea surface geostrophic current, were set up to simulate the real trajectories of drifters
對南海中伴隨渦旋運動的2個浮標模擬試驗顯示,諸多模型中以海表地轉流、風海流及背景流為自變量的回歸模型模擬浮標漂流軌跡效果較好。Certain granular solids transform into highly mobile slurries.
一定數量的粒狀固體就可以變成非常易流動的泥漿。But it is very difficult to develop multiphase flowmeters due to the complexity of flow regimes and inconstancy of flow composition at flowing conditions, thus far there are few practicable multiphase flowmeters available
由於多相流在流動過程中流型復雜、成分多變等原因,使得多相流量計的開發極其困難,到目前為止很少有實用性好的多相流量計。The rheological experienments suggested that the viscosity of pcn was less than pp " s and decreased with increasing content of montmorillonite. the effects of silicate layer on rheological behaviors of pcn are important to process performance of pcn
材料的毛細管流變測試表明,復合材料加工流動性隨著蒙脫土含量的增加而得以改善,其粘度要低於純pp的粘度,這對加工成型極有指導意義。Then, the change of the pressure of the concrete in the pipage is studied. lastly, the pressure losing and the error of the routine measure are discussed. chapter three discusses the fussy self - study issues based on the concrete technology the first section expounds the basic fuzzy self - study theory
首先介紹泵送混凝土的流動特徵,接著研究泵送混凝土在輸送管中泵送壓力的變化,並分析影響泵送壓力損失的因素,從而討論常規計量方法的缺陷第三章主要是針對前章理論模型應用模糊自學習技術。The hydraulic gradients of settling slurry flow transported in three kinds of moving states, i. e. suspension, saltation, or partially suspension were investigated, based on analyzing the changes of solid particles and water in momentum, velocity and their mass related to momentum exchanging over the acceleration period of the solid particles
從固體顆粒加速期間清水與固體顆粒的速度變化、動量傳遞、相關質量等基本問題分析入手,研究了沉降性漿體在水平管道內流動時其固體顆粒在3種流動狀態下的水力坡度,提出了沉降性漿體在水平管道內流動的機理模型,進而用該模型對一些輸送條件下的沉降性漿體的水力坡度進行了計算。The direct result of the insurance securitization is that a great quantity of capital can be attracted to flow into the insurance market, which will offer the investors the new, risk - separate investing channel and play an enormous role in improving the capital constitution of the financial industry and promoting the effective flow of the capital combined with the new changes of the calamity risk in the insurance industry both catastrophe internal and international, it is more important to securitize the insurance of the catastrophe risk
保險證券化的一個直接結果是可以吸引大量資本流向保險市場,為投資者提供新的、風險獨立的投資渠道,對改善金融市場的資本構成,促進資本的有效流動將會發揮巨大的作用。結合國際國內保險業巨災風險的新變化,對巨災保險進行證券化尤為重要。In different in terne die travel, the metal flow characterize in warm extrusion forming processes and the affection for the flow of metal stage which made by the difference between the blank bottom altitude and the axial direction limiting size in warm extrusion forming technique have been analysed we have gotten the equivalent strain field and the velocity field and other field variable that the blank in different in terne die travel and the die travel - load curve. at the same time, we have analyzed the contributing factor for the oil pump stator forming process optimized and achieve thereasonable die parameter for the war m extrusion forming finally, the optimized technics parameters were used into pilot production, then the qualified oil pump stator forging were produced, the analog results were compared with those of pilot production
論文具體分析研究了不同成形工藝過程中金屬流動的特點,並對不同凸模行程下溫擠成形過程中的金屬流動特點、坯料連皮厚度(底部高度)與溫擠壓成形工藝中的軸向界限尺寸的差值對金屬變形階段的影響進行了分析,獲得了坯料在不同凸模行程下的等效應變場、速度場等場變量及凸模行程-載荷曲線,同時對油泵定子成形過程的影響因素等進行了分析,優化並獲得了合理的溫擠成形工藝及模具參數。最後,利用模擬優化獲得的各項工藝參數進行生產實驗,得到實際生產出的合格油泵定子件,並將模擬結果與生產實驗結果進行比較。Several semi - active control algorithms used in the semi - active suspension system with mr dampers are proposed and developed including the " on - off " voltage controller, the continuously linear variable voltage controller, the modulated continuously linear variable voltage controller based on " sky - hook " damping concept and the hybrid controller based on the combination of " sky - hook " damping concept and " ground - hook " damping concept and the fuzzy logic controllers using measurements of the relative displacement between the sprung and unsprung mass or the absolute acceleration of the sprung mass as the input variables of fuzzy logic controllers. the simulation models were prepared in matlab ? simulink ? fuzzy toolbox programs. the experiment setup of the semi - active suspension system with mr dampers in the lab has been designed and developed
根據磁流變阻尼器特性和對懸架系統動力學特性的規律性研究,為磁流變阻尼器設計了基於「天棚」阻尼控制概念的「 on - off 」 、線性連續和修正的線性連續控制策略,基於「地棚」阻尼控制概念的磁流變阻尼線性連續控制策略, 「天棚」阻尼和「地棚」阻尼控制概念線性組合起來的磁流變阻尼混合控制策略,根據模糊控制原理設計了以簧載質量和非簧載質量間相對位移或簧載質量加速度分別作為輸入變量的模糊邏輯控制器用於磁流變阻尼半主動懸架的智能控制。Event types : process instance, activity, variable and link
事件類型:流程實例,活動,變量和鏈接。Applying viscoelastoplastic theory, the modified nishihara model was extended into three dimension, the yield criterion and flow vectors fitting for computing were attained. according finite element theory, the computing method and step of nishihara rheological model was given, numerical simulating of three point bending creep test was performed and the results were coincided with that of test
運用粘彈塑性基本理論,對改進后的西原流變模型時空離散並拓展到三維空間,給出了適合數值計算的屈服準則和流動矢量求解方法;給出了西原流變模型數值計算基本方法和步驟。分享友人