預剪法 的英文怎麼說
中文拼音 [yùjiǎnfǎ]
預剪法
英文
pre-cutting method-
Shear abilities and calculative methods of precasted concrete joints with steel flber high performance concrete
預制結構鋼纖維高強混凝土節點抗剪能力及其計算方法The techniques related terrain lod is systematically studied based on the quadtree data structure. combining the data block attemperation idea, we solved the data integrating and preculling problem, presented the boundary constraining solution, and calculated the collision detection for rambling
本文在四叉樹結構的基礎上較為系統的研究了地形相關lod技術，結合數據分塊調度思想，解決了數據連接和預裁剪問題，給出了邊界約束問題的解法，並針對漫遊計算了特定的碰撞檢測。Methods of test for ancillary components for masonry - determination of shear load capacity of welds in prefabricated bed joint reinforcement
圬工輔助砌塊的試驗方法.預制基地加固處接頭的剪切負載容量的測定Methods of test for ancillary components for masonry - part 3 : determination of shear load capacity of welds in prefabricated bed joint reinforcement
圬工輔助成份試驗方法.第3部分:預制床連接處增強的焊接剪切負載能力測定A method of face detection based on support vector machine ( svm ) is put forward. the features are extracted by applying the discrete cosine transform ( dct ) to the preprocessing image. the dct coefficients are inputted to the svm and the svm are trained using the cropped face samples and the " bootstrapping non - face " samples
對預處理后的圖像進行離散餘弦變換提取特徵，取dct系數作為支持向量機的輸入，將經過裁剪的「人臉」樣本與「自舉」方法得到的「非人臉」樣本一起用來訓練支持向量機。Pre - impregnated glass fabrics based on epoxy resins :. determination of adhesion on copper by a method involving shearing under traction
環氧樹脂基預浸玻璃織物.用牽引下剪切方法測定對銅的附著力By using a cell equivalent method, the present model can deal with the face - center square structure of erf. combining the scheme of the classical conductivity model for the single - chain structure, a new formula for the prediction of the shear yield stress of erf is set up. the influences of the separation distance of the particles, the volume fraction of the particles and the applied electric field on the shear yield stress are investigated
在電導模型的基礎上，建立在電流變液體在外加電場的作用下，粒子之間會形成某種特定的微觀結構，利用等效胞元的方法，將這微觀結構等效成一個平板，建立了等效的微觀結構平板模型，通過計算電流變液體內部的局部電場，對電流變液體的工作機理和剪切屈服應力進行了預測，並且分別考慮了在不同的粒子間距、不同的粒子濃度、不同的外加電場的情況下，對剪切屈服應力的影響。The content mainly involved in the image pre - processing, which includes de - noise and registration on the live image sequence and the mask image, the digital subtraction arithmetic and the image post - processing, which includes the image quantization and enhancement
內容主要涉及數字剪影中造影片序列和蒙片的預處理，包括降噪和配準，數字剪影演算法研究以及數字剪影圖象序列的后處理，包括量化和增強共五個部分。Standard test method for determining the tensile shear strength of pre - fabricated bituminous geomembrane seams
預制瀝青土工薄膜接縫的拉伸剪切強度測定的標準試驗方法By computing the cost of the cheapest subtree with size constraints of the partial tree ( this is an upper bound on the cost of the final optimal tree ) and lower bounds on the cost of subtrees of varying sizes that are rooted at nodes of the partial tree, the algorithms can identify and prune nodes that cannot possibly belong to the optimal constrainted subtree
建樹階段設置大小限制的修剪演算法是通過計算出不完整樹的最小代價得到優化樹的代價上限，根據此上限以及計算出的節點的實際代價來修剪節點的。在預測模型中應用了在建樹階段加入大小限制條件的修剪演算法。In order to accelerate the development of preflex composite beam in railway bridges and to design and construct preflex composite beam bridges of railway in our country reasonably, this thesis is from the scientific project of railway department " experiment and application research of railway preflex composite beam " and summarizes the design information and practical projects on preflex composite beam. on the basis of above works, this thesis improves computation method in analysis of railway preflex composite beam on sectional stress, deflection of mid - span, crack width and shearing resistance and programs a software " preflex composite beam bridge structure analysis system - pfsas ", which is adapt to railway bridges in our country. moreover it makes a primary research in construction techniques and structure measures
為了迅速促進預彎組合梁在我國鐵路橋梁中的發展，合理地進行我國鐵路預彎組合梁橋的設計和施工，本文結合鐵道部科技研究開發項目「鐵路預彎組合梁的實驗與應用研究」 ，在總結以往對預彎組合梁力學性能研究成果及實際工程的基礎上，完善了鐵路預彎組合梁的截面應力、跨中撓度、裂縫寬度和抗剪分析的計算方法；編制了適用於我國鐵路橋梁的「預彎組合梁橋結構分析系統? ? pfsas 」軟體；並對預彎組合梁的施工工藝及構造措施進行了初步探索。Neural networks technology is applied to build the complex non - linear relationship between the anti - shear capacities of the reinforced concrete abnormal joints under low reversed cyclic loading and the main factors. back propagation neural networks model are build to predict the anti - crack capacity and bearing capacity. 3
利用神經網路方法研究了低周反復荷載作用下的鋼筋混凝土框架異型節點抗剪承載力與各主要影響因素之間復雜的非線性關系，並利用bp神經網路分別建立了該節點的抗裂承載力預測模型以及抗剪極限承載力預測模型； 3Firstly, some basic algorithms for inducing decision tree are discussed, including id3, which uses information gain to select a splitting attribute when partitioning a training set ; c4. 5, which can deal with numeric attributes ; cart, which uses gini rule in attribute selection and induces a binary tree ; public, which puts tree pruning in the tree building phase ; interactive method, which puts artificial intelligence and human - computer interaction into the procedure of decision tree induction ; as well as sliq and sprint which are scalable and can be easily parallelized. advantages and disadvantages of these algorithms are also presented
文中詳細闡述了幾種極具代表性的決策樹演算法：包括使用信息熵原理分割樣本集的id3演算法；可以處理連續屬性和屬性值空缺樣本的c4 . 5演算法；依據gini系數尋找最佳分割並生成二叉決策樹的cart演算法；將樹剪枝融入到建樹過程中的public演算法；在決策樹生成過程中加入人工智慧和人為干預的基於人機交互的決策樹生成方法；以及突破主存容量限制，具有良好的伸縮性和并行性的sliq和sprint演算法。Aiming at main project of the xiaoxihu bridge, a low pylon cable - stayed bridge, based on the existing theory and method of the bridge construction controlling theory, using the basic function of " ansys ", farther exploitation was done on concrete elasticity and creep calculating distinguishingly, nonlinearity analysis theory was used to construct the space model, the main beam, string pylon and abutment were simulated by the beam elements which was considered the shearing effect. which is worthy of considering that using the geometric non - linear truss elements to simulate the stayed - cable, form traveler is modeled as structure elements and participate in stress analysis. four stages are used to model the construction stage, which are : ( 1 ) the erection of form traveler ; ( 2 ) placing the segmental concrete ; ( 3 ) jacking the tendons ; ( 4 ) tensioning the stay cables
針對建設中的小西湖矮塔斜拉橋的主體工程，結合已有的橋梁施工控制的理論和方法，利用大型通用計算軟體ansys的基本功能，並著重在混凝土彈性計算及徐變計算方面做了相應的二次開發，採用非線性分析理論並建立了空間結構模型、用考慮剪切作用的梁單元模擬主梁、索塔和橋墩；用可考慮幾何非線性的桁元模擬斜拉索、施工掛藍作為結構單元進行拆裝，參與受力計算，整個施工過程按施工循環周期分為若干階段，每個階段又分為四個工況，即：空掛藍就位、澆築完畢階段混凝土、張拉預應力鋼筋和張拉斜拉索。Firstly, the paper sums up program foundation of the auto design system for the structure of prestressed composite slab, in which object - oriented programming and multi - language programming are discussed emphatically. secondly, the paper illustrates program design of the auto design system in preprocess section, analyses calculation section and postprocess section respectively, in which the function design of the intellectualized collocation, the continuous beam model, the check of the precast slab, auto generation of the calculations and shop drawings is described weightily. finally, the practical design methods and process of the structure system of prestressed composite slab are expatiated by representative example
在綜述了預應力樓蓋體系以及計算機輔助設計的相關內容，分析了國內外研究現狀，研究了疊合樓蓋的受力機理、抗彎抗剪性能以及經濟指標后，文中首先概括了預應力疊合樓蓋體系自動設計系統的編程基礎，其中重點討論了面向對象程序設計和混合語言編程技術；然後分前期處理、分析計算、後期處理三部分，詳細說明了預應力疊合樓蓋體系自動設計系統的程序設計，其中突出描述了程序所特有的智能布置、連續梁模型、預制板校核、生成計算書及施工圖等功能的設計；最後用實例講述了預應力疊合樓蓋體系的實際設計方法及步驟。Abstract : a previously proposed approximate quasi - static theoretical method is employed herein to examine the deformation and perforation of a simply - supported circular plate struck by a flat - faced projectile at normal incidence. based on the principle of virtual work, static load - displacement relationships are first obtained and then used to predict the energy - absorbing capacity of the plate subjected to relatively low speed impact. it is shown that good agreement is obtained between the theoretical predictions and the available experimental data, provided that adiabatic shear plugging failure does not occur, but the influence of strain rate sensitivity is taken into account
文摘:採用準靜態近似理論方法分析簡支圓板在平頭彈丸正撞下的變形和穿透.首先基於虛功原理得到了靜態荷載位移關系，並將其用於預測低速沖擊下圓板的能量吸收能力.當考慮了材料的應變率敏感性，並且不發生絕熱剪切沖塞破壞的前提下，理論預測和實驗結果吻合良好According to analyze and study to logistic requirement characters, the dissertation proposes the forecast method that is classifying, pruning, forecasting and deciding. finally, the dissertation discusses design of distribution system. distribution business can be classified as foreground process and background process according to their characters
通過對多品種小批量產品物流需求特徵的研究，提出了一套系統的預測方案：首先確定各類產品的預測方法；然後對需要進行定量預測的產品進行剪枝以去掉需求不規律的產品；接著對各個產品採用指數平滑法進行預測計算；最後根據預測的結果進行決策。For any laminate which exists an obvious deviation between the estimation and experiment of static strength, maximum loads used in fatigue life predictions were obtained by multiplying the maximum loads used in tests with the ratios of analytical strength to test strength, so as to make the calculation feasible
（ 3 ）將iosipescu剪切強度試驗方法推廣到剪切疲勞，對4準各向同性層壓板試件進行了剪切疲勞試驗。用本文開發的疲勞分析程序預測了被試多向層壓板的剪切強度和疲勞壽命，模擬了局部疲勞失效演變的過程。We also place emphasis on research of apriori and fp - growth algorithm and compare the performance of two algorithms. secondly, we do research on concepts of structured and nonstructured data, actual state and problems of tree structure mining, and freetreeminer algorithm theory. we also study canonical form and pre - processing technologies of free - tree, concepts and properties of closed and maximal tree, and pruning, growing and mining of tree structure
其次，研究了結構化與非結構化數據的基本概念、樹結構挖掘的研究現狀、現有樹結構挖掘技術存在的問題、 freetreeminer演算法及其基本思想，重點研究了free樹的規范化和預處理技術、封閉頻繁子樹和最大頻繁子樹的概念和性質、樹結構的剪枝和生長技術、樹結構的挖掘技術。分享友人