經向梯度 的英文怎麼說
中文拼音 [jīngxiàngtīdù]
經向梯度
英文
longitudinal gradient-
Secondly, the new generalized gradient is introduced to take advantage of the given directional derivative
其次討論了一類新的廣義梯度，這樣的廣義梯度能夠充分利用已經有的方向導數的信息。In general, there are tow nns in the system of nns - imc. one is neuro - controller, and another is neuro - emulator. the neuro - emulator emulates the model of the plant online, and gives the jacobin of the plant to neuro - controller
它一般包括神經網路控制器和神經網路觀測器，神經網路觀測器在線辨識被控對象的模型，以此作為系統的內部模型，並且向神經網路控制器提供被控對象的梯度信息。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。Here we report that growth cones of rat cerebellar axons in culture turned away from a gradient of sdf - 1, a chemokine that attracts migrating leukocytes and cerebellar granule cells via a g protein - coupled receptor ( gpcr )
以前的證據表明， sdf - 1 ，一種經典的chemokine ，能夠吸引白細胞和遷移中的神經元，這種作用是通過g蛋白耦聯受體介導的。利用生長錐轉向分析，我們發現sdf - 1的濃度梯度能夠吸引或排斥培養的小腦顆粒細胞的生長錐。Based on the classical nonlinear plate theory, axisymmetric post - buckling behavior of a functionally graded circular plate under radial compression was investigated
摘要基於經典非線性板理論，研究了功能梯度圓板在均勻的徑向壓力作用下的軸對稱過屈曲問題。Based on this, the upper controlling index of soil water content is 80. 4 % and the days of waterlogged and salinization tolerance is 3. 2 days. the moisture and salinization movement mathematical model in the field under subdrainage condition is based on the assumption of neglecting the effects of horizontal hydraulic gradient, it can analogy the changes of soil water content and salinization which are changed with times and depth
論文在忽略水平方向水力梯度影響的假定下建立了排水條件下麥田水鹽運移模型，模擬土壤水鹽含量隨時間、空間的變化情況。經與實測資料對比發現，計算值與實測值較為接近，故該模型及參數的確定是合理的，可用於預測麥田水鹽的動態變化。The function of stone artistic splice complete through to established basic design or source material warehouse with the help of others graph process software. besides author come up with a new program or machine method in accordance with stagger in the thicknes and vertical length at the stone sticking execution, i. e ensure the accuracy in measurement to approach subsection by space spiral line, the data used directly by numerical control machine. finally machined the stone become a spiral line columned surface arc slab
此外，針對旋轉樓梯扶手石材貼片施工時所出現的厚度和垂直方向易產生較大錯邊的問題，提出了一種新的建模方案和加工措施，即在保證測量精度的基礎上，分段以空間螺旋線逼近，經過計算機處理后的參數直接可供數控加工使用，最後把石材貼片加工成螺旋線型的柱面弧形扳。The latitudinal gradient of coriolis parameter is also an important factor that affects the strength of baroclinic stability, the larger its value is, the smaller strength of the baroclinic stability is. i. e., the higher the latitude is, the more strength of the baroclinic stability is
科氏參數經向梯度的大小又是影響斜壓穩定性強度的一個重要因子，其值越大，斜壓穩定性強度越小，即較高緯度的斜壓穩定性要強于低緯度。There are two methods to optimize the parameters and structures of neuro - fuzzy networks : one is the differential coefficient optimization method based on gradient vector ; the other is based on modern optimization methods, such as genetic methods, simulated annealing etc, in which, the researches on genetic methods are most prominent
目前，對模糊神經網路的權值或結構進行優化的方法有兩類：一類是基於梯度向量的導數優化方法；第二類方法是基於現代最優化技術的非導數優化方法，如遺傳演算法、模擬退火演算法等，其中以遺傳演算法的研究最為突出。In order to realize the optimum arrangement of elevators, the evaluation function and ambiguity function for dispatching elevators are established, and the optimum weight coefficients of the different factors in the estimating function are obtained with the aid of the bp neural networks self - learning function
摘要通過構造用於派梯選擇的評價函數，在建立隸屬度函數的基礎上，利用前向神經網路自學習功能獲得評價函數中各個因素的最佳加權系數，實現最佳派梯。While increasing the role of economic and radiation center of prd, hunan province as a second gradient should get close center actively by advantages of resources, talents and stock assets rather than accept gradient transfer passively. in its economic
在不斷加大珠三角經濟中心的焦點輻射作用的同時，作為第二梯度的湖南省應以自己的資源、人才和存量資產優勢積極主動地向中心靠攏，而不是被動地接受梯度轉移。Using the indices of trajectory follow error and steering busyness in evaluation of the steering stability, a quadratic form performance index function for the neuron learning was established and the tuning of the connection weight values of the single neuron controller was realized using the algorithm of gradient descent
利用操縱穩定性評價中的軌跡跟隨誤差和方向盤忙碌程度的評價指標，建立了神經元學習的二次型性能指標函數，並採用梯度下降演算法實現了單神經元控制器的滾接權值的調整。A lot of classical lpfs are designed for the filtering of acceleration signal, then the direction of filters " optimization is put forward in terms of the performance analysis of the filters and the filtering results. two adaptive filtering algorithms based on gratitude search are also discussed
設計了多種對加速度信號進行濾波的經典數字低通濾波器，通過對濾波器的性能分析和濾波結果比較，總結了濾波器的優化方向；討論了基於梯度搜索的兩種自適應濾波演算法。The method has special obvious advantages to diagnosis the faults when several faults exist simultaneously. the paper constructs a three - layer forward neural network to diagnosis the fault and trains the network with characteristic eigenvectors extracted through the wavelet packet analysis, when training the net using the method of adding inertia item and the bp algorithm of conjugate gradient method, at the same time adapt the initial data of the network through the test
同時，文中還構造了三層的前向神經網路，以小波包分析提取的故障特徵向量作為網路的訓練樣本數據，採用加慣性因子、共軛梯度法和迭代過程中改變學習率的反向傳播演算法來對神經網路進行訓練，並採用試驗的方法調整神經網路的初始值。分享友人