梯度管 的英文怎麼說
中文拼音 [tīdùguǎn]
梯度管
英文
gradient tube-
Increscent weight of oxidation, graphic and micrographic were explored, meanwhile, the mechanism of anti - erosion and wear - resistant of new coating material are also studied. at last, a program applied to calculate the temperature distribution and heat transmission between water wall tubes with sprayed coatings and metal anti - erosion tile was developed by use of visual basic
文中最後採用vb6語言計算機編程，計算了不同材料塗層對鍋爐水冷壁管的傳熱效果及徑向溫度梯度的影響，同時與加裝了防護瓦和未加任何防護的水冷壁管進行了比較。Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last
在基於專家系統的故障診斷方法中，採用了產生式知識表達和正向推理機制；在基於神經網路的故障診斷方法中，則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷，並對由模擬得到的不同診斷結果進行比較。It includes two aspects in content : one is the best choice for plane disposal of pipeline, and its methods follows as decision - making plot, simple trapeziform and optimizing trunkform etc ; the other one is optimizing pipe parameter when the plane disposal of pipeline has been fixed, and the methods of which are linear programming, unlinear programming, dynamic optimizing, direct optimizing, hereditary arithmetic and so on
污水管網優化設計包括兩個方面的內容：一是管線平面布置的優化選擇；其方法有：決策圖法，簡約梯度法，優化樹法等。二是在管線平面布置已定情況下進行管道參數的優化；其方法有：線性規劃法，非線性規劃法，動態優化法，遺傳演算法，直接優化法等。The segmentation method of retinal blood vessels based on gray level - gradient co - occurrence matrix
梯度共生矩陣的視網膜血管分割方法The verification of the algorithm is performed using a gauss - distributed concentration ball and a stock wave at steady flow in an open channel. the comparison with an analytical problem solution shows that the precision and the stability of quasi - consistence hexahedral element method is as good as that of consistence hexahedral element method, better than that of the linear interpolating function method
6 、比較分析了網格布置形式對圓管流動和臺階突擴流動計算結果的影響后表明，應在物理量梯度變化較大的區域適當加密網格，才能較好地模擬這些區域的流動特性以及壁面對整個流動的影響。Compared with the reality, it shows that this model and its parameters are defined reasonablly. to analyse the arrangement of drainage system with different spacings and depths, with unsteady flow formula and benefit index, this paper gives a two - dimensional non - linear programing model for arrangement of drainage system in the barley field, which can be solved by the method of projected gradient. by this model, we make out the optimum solution of spacings and depth of pvc pipe in littoral area of changjiang river that is s = 21. 5 8m, h = l. lm
論文通過對不同埋深、間距的塑料暗管排水布局的分析，結合非穩定流公式和效益指標，提出了麥田排水暗管布局的二維非線性規劃模型，並利用梯度投影法求解，得出長江下游濱海地區塑料排水暗管埋設的最優方案為埋深h = 1 . 1m ，間距s = 21 . 58m 。It have been proved that the tip [ ca2 + ] i and the amount of tip f - actin oscillates periodically accompany the oscillatory growth of pollen tubes
伴隨花粉管的振蕩生長，花粉管頂端的ca ~ （ 2 + ）濃度梯度和微絲的聚合?解聚狀態會發生周期性變化。The boundary layer can indicate the comprehensive influences of oil reservoirs, the physical properties ( reservoir porosity, permeability, fluid viscosity and its composition ) of inside fluids and development conditions such as pressure gradient : the layer thickness reduces with the rise of capillary radius ; when capillary radius is fixed, the thickness increases with viscosity rise ; the more polarity composition content is, the more obvious the absorption, the thicker the boundary layer, more and more obvious the characteristics of non - darcy filtration
邊界層反映了儲層、流體物性條件（儲層孔隙度、滲透率、流體粘度、組分）和開發條件（壓力梯度）的綜合影響，認為邊界層厚度隨著毛管半徑的增大而減小；在毛管半徑相同的情況下，邊界層厚度隨壓力梯度的增大而減小，最後達到一個臨界值；毛管半徑一定時，邊界層厚度隨粘度增加而增大；極性組分含量越大，吸附越明顯，邊界層厚度越大；邊界層厚度越大，非達西滲流特徵越明顯。Using the literature materials and experience before, this paper makes a thorough study on optimal design of water supply networks. an algorithm of decomposing and coordination of system engineering which divides the optimization of the whole networks into three parts, i. e. optimization of water resource flow, and pipe - diameter and standardization of pipe - diameter is proposed. the three parts can be resolved by generalized contracted grads method, hybrid genetic algorithm which is the combination of genetic algorithm and grg method separately
本文根據以往的文獻資料及相關工程經驗，針對給水管網優化設計這一課題做了深入的研究，提出利用分層分解協調演算法將管網優化設計問題分解成流量優化、管徑優化及管徑取整三個子課題的思想，並分別採用廣義簡約梯度法、遺傳演算法與廣義簡約梯度法相結合的混合遺傳演算法及簡單遺傳演算法來求解三個課題。The improvement on conditioning and aeration of double fluids system by atomizing and controlling the air humidity was fully introduced in this paper, as well as solved the shortcomings of high moisture grades between the mirage soaked wind - pipeline and the surface of the grain, and between the superstratum and substrate after conditioning by a serios of managing measures, such as changing the way of ventilation, adjusting the aeration time by controlling the air - humidity of ventilation
摘要詳細論述了雙流體調質通風系統在水汽霧化、空氣濕度控制方面的改進，包括改變送風方式、調整干濕空氣通風時間等管理措施，較好地解決了調質過程中的水霧浸濕風道與糧面、糧堆上下層水分梯度大等的儲糧問題。At some situation, some nodes pressure and supply of all water - supply sources are measured in xi ' ning ( resistance parameter of all pipes are known ). by using the pressure of the experiment and optimal measure points, the state simulation is done respectively to get all nodes " pressure. the comparison of the estimation results express that the optimal measure points is more representative than experiment one
利用簡約梯度優化法求解給水管網狀態估計的最小二乘數學模型，實測某一工況下西寧市配水管網部分節點水壓h _ 0 、各水源供水量（管段摩阻已知）分別用優化選擇的測壓點水壓和按經驗選擇的測壓點水壓估計所有節點的水壓，對西寧市配水管網進行了狀態估計。In this paper the no. 50, 100, 150, 200 and 480 minute ' s pipes " temperature field and stress have been calculated with this method. compared with the experimental result the temperature result is very accurate
同時解釋了溫度、熱流、熱梯度及應力存在差異的具體原因，為計算出再熱器鋼管材料12crlmov的熱疲勞壽命提供了有價值的數據。The relative theory of capillary electrophoresis has been studied. the low voltage separation models with moving grade electrical field and high voltage separation model have been discussed
研究了毛細管電泳的相關基礎理論，從理論上較深入地研究分析了傳統的毛細管高電壓分離模式與本文所採用的低電壓運動梯度場分離模式。Based on the knowledge of capillary electrophoresis technology, the separation and control models of low voltage electrophoresis system using moving grade electrical field have been presented. at the same time, the developments of electrophoresis chip and control circuit have been studied, which will lay theory and technique foundation for the further study on the low voltage electrophoresis chip
以期在了解毛細管電泳的相關理論的基礎上，建立電泳晶元的低電壓運動梯度場的分離和控制模型，對電泳晶元的製作和低電壓控制電路的研發進行前期探索，為研製一種微型化、集成化的低電壓電泳晶元奠定一定的理論和技術基礎。Through large amount of lab experiments, the relation of oil boundary layer thickness with capillary radius, pressure gradient, fluid viscosity and its composition has been discussed
摘要通過大量的室內實驗，探討了原油邊界層厚度與毛管半徑、壓力梯度、流體粘度和組分的關系。Study on the rapid purification of rat islet cells with push - type tube by modified mono - density gradient method
推進式離心管結合單密度梯度法快速純化大鼠胰島Based on this observation, we develop a newton - filter method in such a way that at each step, the method generates a point such that either the objective function value or its gradient descreases sufficiently
此時，常用的線性搜索（如armijo搜索和wolfe搜索等）可能失敗。另一方面，不管目標函數的hessian陣是否正定， newton方向一定是目標函數的梯度的模函數的下降方向。In crystal growth experiment, aggas2 crystal was growen in special quartz ampoule by crucible descending method ( b - s method ). the equipments were used, which consist of a two - zone vertical growth furnace whose temperature gradient is tunable, a descending device with decelerating rate of 1 : 2000, a controlling system of electy and a temperature testing system using thermal couples
晶體生長實驗中，我們利用上下溫度梯度可調的二溫區管式生長爐， 1 2000減速比的旋轉下降系統，電氣控制系統和密集適時測溫系統等，在特殊形狀的石英生長安瓿中，採用坩堝下降法（ b - s法） ，以合成的aggas _ 2多晶原料進行晶體生長。Plastics - methods for determining the density of non - cellular plastics - density gradient column method
塑料.非泡沫塑料的密度測定方法.密度梯度管法Plastics - methods for determining the density of non - cellular plastics - part 2 : density gradient column method
塑料.非泡沫塑料的密度測定方法.第2部分:密度梯度管法分享友人