time step 中文意思是什麼
time step
解釋
節奏步-
The angle of your movement relative to the ball ' s flight line helps you reach the ball on time, step 2, structure the body for a strong hit, step 3, and helps you develop power in a simple manner and not in one you ' re used to that is counterproductive to success, step 4
你相對球的飛行路線的移動角度可以幫助你及時碰到球，第2步，使身體形成更強力的擊球，第3步，幫助你以簡單的方式獲得力量，而不是你習慣的低效的方式，第4步 -
Following this algorithm, the base flow can be calcu - lated from the observed discharge as follows : 1, 22bbqiqiqi where i is the time step in the discharge records, qb is the base flow, q is the total runoff, and is the re - cession constant during periods with no surface runoff. the parameter can be determined through a dis - charge recession analysis
地下徑流的推算公式如下1 1 . 22bbqiqiqi ? ? ? ? 26其中i表示推算的時間步數， qb是地下徑流， q是總的徑流.表示沒有降水時候流量消退系數，可以通過沒有降水時候的流量消退資料推算出出來 -
Once a stable time step is found, further reduction will not appreciably increase solution accuracy.
一旦找到一個穩定的時間步長，進一步減少它不會顯著增加解的精度。 -
Comparing numerical character of above two models, it shows that the variance of atmosphere motion must be modified so the time step used in numeric simulation has no effect on numerical character of chaff clouds
對數值模擬模型的分析表明必須對大氣的運動方差進行時間離散化補償，進行離散化補償后箔條雲團的數字特徵不受模擬時時間步長的影響。 -
The explicit finite element method ( fem ) based on the varying time - step was selected to analyse the dynamic roll - pass process ; the nodes on the leading face of the steady - state elements set was extracted and projected onto a plane to give the required mesh, also called the origin mesh ; the implicit fem was selected to analyses the inter - pass transient thermal process ; a geometric part from the mesh was generated and meshed by using the quadrilateral elements, a heat transfer analysis was selected to transfer the node temperature data ; a new model was created by using hexahedral elements, mapping the node temperature and the equivalent plastic strain on the integration points
利用基於變步長中心差分格式的顯式積分方法分析瞬態軋制過程；提取穩態單元集節點形成截面網格；利用隱式積分方法分析軋制道次間隙瞬態溫度場；對型鋼斷面進行平面四邊形網格劃分並映射節點溫度數據；利用六面體單元構建有限元分析模型，映射單元節點的溫度、積分點的等效塑性應變，進行數值分析。 -
Abstract : thermally induced stress and the relevant warpage cause by inappropriate mold design and processing conditions are problems that confounded the overall success of injection molding. a thermorheologically simple thermoviscoelastic two - dimension material model is used to simulate the residual stress and warpage within injection molded parts generated during the cooling stage of the injection molding cycle. the initial temperature field corresponds to the end of the filling stage. the fully time - dependent algorithm is based on the calculation of the elastic response at every time step. numerical results are discussed with respect to temperature and pressure
文摘:不均勻的熱殘余應力及其變形是注塑成型加工中常見的工程問題之一.應用熱流變簡單材料的二維熱粘彈本構方程得到的遞推公式，數值模擬了成型中的熱殘余應力及其翹曲變形，並用數值實驗討論了溫度、壓力對注塑件殘余應力及變形的影響，發現溫度變化不均勻是注塑件翹曲變形的最主要原因，其影響遠大於壓力的作用，與工程實驗的結論一致 -
No. 2, a fast simulation technique is proposed to approximate the filtering effects of the implicit method in order to alleviate the heavy computation brought by the implicit integration method. no. 3, an algorithm to dynamically regulate the time step is detailed
柔體模擬過程中一直存在的瓶頸問題首先是為保證模擬過程的穩定性而不得不採用較小的時間步長，其次是求解微分方程時耗費的計算量過大。 -
Secondly, basic model of one - stage investment decision is provided and the effects of the parameters, including the capacity step, time step etc on the simulation are understood at the same time, the algorithm ( monte carlo method ) of basic model is given and the basic model is studied in order to find how the three parameters of demand affect the investment decisions
其次，在一系列假設的基礎上，提出了單階段投資決策的基本模型，分析了規模步長、時間步長、樣本數量等參數對模擬結果的影響，給出了該模型的蒙特卡洛模擬演算法，並對該模型進行了系統研究，明確了需求的3個參數（需求漂移率、需求的波動率和初始需求）如何對投資決策結果產生影響。 -
The controlling strategy with the separation of the interpolation process and real time step are proposed
給出了插補過程與實時步進相分離的控制策略思想。 -
To generate a forecast, a numerical weather prediction model repeatedly advances the model state from one instant through a small time step ( a few seconds to a few minutes depending on the scales of motion resolved by the model )
在執行預報時，數值天氣預報模式會從某一瞬間時刻以微小的時步，重復向前計算模式的狀態（時步可由幾秒到幾分，視模式所解析的運動尺度而定） 。 -
It calculates the effects during each time step of winds carrying along the various atmospheric properties and of the processes of evaporation, rainfall, surface friction, infrared cooling and solar heating that occur in the area of interest
在每個時步里，模式計算的作用包括：各種隨著風改變的大氣性質、蒸發過程、降水、表面摩擦以及在重要地區的長波輻射冷卻與日照加熱。 -
The rule about water flow in the unsaturated soil and the soil - water characteristic curve are described in this thesis in the first time step during the numerical simulation, the permeability coefficient is calculated according to the initial water content of the unsaturated soil, because of as shown in the soil - water characteristic curve has the hysteresis phenomenon
闡述了非飽和土中水流動的基本規律和土水特徵曲線。由於土水特徵曲線具有滯后的特點，提出了根據初始含水量來確定數值模擬初始時步非飽和土的滲透系數。 -
This dissertation proposes the data pre - storage method which makes the time step selection much more flexible
提出數據緩存方法，擴展了實時數字試驗的步長選擇范圍。 -
The proposed method combines the detection probability and temporal tracking information at each time step, therefore outperforms current frame based detection and traditional tracking methods
通過在每一時刻將人臉檢測信息融入粒子濾波器的時序信息積累和傳播機制中，演算法取得了優于逐幀檢測和傳統跟蹤演算法的性能。 -
Simulation results show that the method is very simple to application and has also a good precision. non - parameter neural network model of the cable - damper system is formatted. based on the damping force and responses for past time steps, responses at the next time step can be predicted accurately with the non - parameter model
3 、應用神經網路技術對參數識別和非參數化建模問題進行了研究，提出一種直接識別結構物理參數的神經網路識別方法，該方法演算法簡單，識別精度高；建立了拉索-阻尼器系統的非參數神經網路模型，該模型根據過去幾個時間步的阻尼力及結構響應能精確預測下一時間步的響應。 -
A pulse hard source has been adjusted to allow the reflection wave pass by the source without retroreflection. and the calculation area is changeable at the different time step, so only those area with wave propagation have been calculated. as the results, the total calculation time can be reduced
還有計算區域隨時間改變的方法，利用fdtd計算空間點的鄰近性，在不同的時間步上計算不同大小的區域，使得只有波傳播到的區域被計算，這樣可以縮短計算時間。 -
The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model
非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。 -
Some basic concepts, failure criterion, formula and determination of analytical parameters such as spring modulus, coefficient of damping and time step of the extended model are presented
文中詳細介紹了離散單元法的基本原理、破壞準則、基本方程以及彈簧剛度系數、阻尼系數、時間步等計算參數的確定方法。 -
The boundaries had sufficient capacity to offer and hold the vehicles that moved in or out. the density of vehicles would tend to a certain stable value with the acceleration of time step, which could reflect that the urban traffic had appropriate capacity
周邊有充分能力提供和接納出、入車輛，車輛密度將會隨著時間步的增多趨向某穩定值，以反映城市的交通存在某適宜的容量。 -
A new fluid - structure coupling numerical method is developed in the present dissertation. 2d / 3d navier - stokes equations and low renolds number turbulence model are solved in the fluid zone, while the structure models are solved in the solid zone. the boundary conditions are transferred between the two zones after each time step
該方法採用了準確的數學物理模型，在流體區域求解二維、三維favre平均的非定常navier - stokes方程，在固體區域對于不同的問題求解體振動模型，每一個計算時間步完成後，流體和固體之間傳遞一次邊界條件。
分享友人