iterative structure 中文意思是什麼
iterative structure
解釋
迭代結構-
It is determined that with accurate knowledge of the complete stress - strain curve of concrete in compression, steel in tension, and with an iterative computerized non ? linear method, it is possible to predict the entire moment - curvature, moment - flexural rigidity and axial rigidity relation ship of a cross - section of a structure member
可以確定，只要知道混凝土受壓和鋼筋受拉的完整的應力應變關系，採用選代的非線性計算方法，就有可能預測結構截面彎矩一曲率、彎矩一彎曲剛度和軸向剛度的關系。 -
Turbo codes represent the new code structures, which consist of pccc ( parallel serially convolutional code ) and sccc ( serially concatenated convolutional code ). in this paper, the background of turbo codes are firstly introduced, which includes the base principle of error correction code 、 block code and convolutional code ; the principle of turbo code and the iterative decoding is secondly expanded ; the key decoding algorithm : a revised map algorithm and iterative decoding theory are detailed ; then, a new turbo code structure : hccc ( hybrid concatenated convolutional code ) is presented, and the capacity of this code method is analyzed, the average capacity upper bound is derived ; at last, this code is simulated on awgn ( additive white gaussian noise ) channel and rayleigh fading channel
本文首先介紹了turbo碼的背景知識，包括差錯控制的基本原理、分組碼和卷積碼；然後闡述了turbo碼的基本原理，包括turbo編譯碼器結構及迭代譯碼原理；較為詳細地描述了關鍵的譯碼演算法： ?種改進的最大后驗概率（ map ）譯碼演算法及迭代譯碼演算法；提出了一種新的turbo碼結構：混合turbo碼（混合級聯卷積碼） ；並用編碼性能聯合界分析方法對混合turbo碼進行了性能分析，得出了其平均性能上界；並在高斯白噪聲通道和瑞利衰落通道上分別作了一些應用研究及計算機模擬實驗。 -
To obtain the parameters of measuring magnetic circuit structure, theory research is done. theory research based on overrelaxation : according to electromagnetic theory fundamental equation, boundary condition is analyzed, iterative formula is deduced, overrelaxation factor is selected and calculation program is composed
並根據麥克斯韋電磁場基本理論建立了磁路結構模型，使用超鬆弛迭代法對測量磁路結構的磁場進行了理論分析，得到了適于用在行程傳感液壓缸行程測量的磁路參數之間的關系。 -
A series of elastic spring were used to simulate the soil reaction to structure and a equivalent linear iterative approach was used for simulating the soil nonlinear behavior in the finite element analysis in this paper
在有限元分析中，本文採用一系列彈性彈簧單元模擬土作用，通過反復的等效線性迭代過程模擬土對結構的非線性。 2 、進行模態分析。 -
Thirdly, subspace iterative method is adopted in the paper, and natural periods and modes of preceding fifteen steps of zhongshan no. one bridge are solved, dynamic characteristics of this kind of structural system are obtained, inherent link between dynamic characteristics and structural rigidity is discussed deep, the viewpoint is provided that dynamic characteristics of a structure are considered as important basis whether structural scheme is rational ; in addition, the author brings out some own views and opinions about calculational methods of prestress value of different sorts of tie rods, simulation of local rigidity region, foundation of a local finite element model of a node
另外，提出在施工階段中某些構件的應力有可能比成橋狀態的應力還大，需防止在施工狀態中構件因強度不足而破壞；再次，採用于空間迭代法，求解了拱式組合體系橋梁的自振周期和振型，得出該種結構體系的動力特性，深入探討了動力特性和結構剛度之間的內在聯系，提出了把結構的動力特性作為判斷結構方案是否合理的重要依據。此外，本文還就系桿預應力值的確定方法、局部剛度區域的模擬、節點局部有限元分析提出了作者的見解和看法，對解決類似問題得出了一些有參考意義的結論。 -
A kind of whole - path iterative ray - tracing method in stratum structure media
一種層狀介質條件下射線的全路徑迭代追蹤法 -
In order to assure that the stress and strain state of structure is secure, the author analyses respectively the objective functions of the reasonable finished state and buckle - cable adjusted phase ; thus, the optimized model based on fga is framed. finally according to the example, the computation datum are compared with the iterative forward analysis method and the optimal control theory. the result shows that this method can be used conveniently and meet the construction and design precision
為了滿足大跨度鋼管混凝土拱橋施工的安全性與成橋預期的內力狀態和拱肋線形，本文結合工程實例，分別對合理成橋狀態和扣索索長調整的目標函數的確定進行了分析，將一組多變量、多約束的最小化問題無約束化，從而建立起適合於該問題的遺傳演算法優化模型，將其計算結果分別與迭代前進法和隨機最優控制理論進行了比較；結果表明，採用該方法編制的基於結構計算的遺傳優化程序操作靈活，能很好的滿足施工和設計要求。 -
To overcome the common problems, difficulty of determining the optimal structure and slow training process, present in bp neural network, a novel non - iterative training algorithm for multilayer feedforward neural network has been proposed
為彌補與克服推斷測量的常用技術之一的神經網路中存在的隱節點難以11摘要確定和訓練速度慢問題，提出了一種可用於多層前向神經網路模型的非迭代快速訓練演算法。 -
The mmse sic algorithm which based on the iterative structure has a tradeoff between performance and complexity, while the implementation is very difficult
基於循環結構的mmsesic檢測演算法是一種兩者兼顧的演算法，但實現起來還是存在諸多困難。 -
The iterative learning control, the variable structure sliding mode control and neural network control are combined in complementary manner. the asymptotic convergence of the tracking error to zero is established
將迭代學習控制，變結構滑模控制，神經網路自適應控制以互補的方式相結合，使得跟蹤誤差漸近收斂于零。 -
In the first analysis of structural stability, the work is to find how semi - rigid connections affect the buckling load of structure. while in the second analysis of structural stability, we will get the degree which semi - rigid connections affect the ultimate bearing capacity of structure. in the determination of rotational stiffness at the semi - rigid nodes, iterative technique is used
在考慮半剛性對第一類和第二類穩定的影響時，主要在第一類穩定分析中是求半剛性對結構整體失穩時屈曲荷載的影響，第二類穩定主要是求半剛性對結構極限荷載的影響 -
Based on analyzing the main characters and the limited aspects of many software testing management tools in existence, regarding the requirement of many domestic software companies, the author researched and developed a software testing management tool, which includes such characters as listing under : ( 1 ) testing running process management, separating the static information and dynamic information of the testing cases to manage the running process of the testing cases, supporting iterative testing and regressive testing ; ( 2 ) providing the individual setting of the classified properties of bug and testing case, which user can define in according to their requirements, and then providing corresponding querying and statistic functions ; ( 3 ) testing progress plan management, setting testing milestone and management check point to manage the testing progress plan ; ( 4 ) testing task management, using tier structure to express task ' s relationship, supporting task cooperative management based on work flow, monitoring the task ' s time, cost and performance during the whole process ; ( 5 ) testing evaluation, using testing cover rate and bug reports to evaluate a test
本文分析了現有的軟體測試管理工具的主要特點和局限性，結合國內從事軟體開發的組織的實際需求，提出了一個具有下列技術特色的軟體測試管理工具： （ 1 ）測試運行管理，通過將測試用例的靜態信息和動態信息分離來進行測試用例運行的管理，為重復測試、回歸測試管理提供支持； （ 2 ）軟體缺陷和測試用例的分類屬性值的定製功能，使用戶可以根據自身組織的管理要求進行自定義，根據定製提供相應的分類查詢、統計等處理功能； （ 3 ）測試進度計劃管理，通過設定測試里程碑和管理檢查點來對測試進度計劃進行管理； （ 4 ）測試任務管理，使用層次結構表達任務的結構關系，提供基於工作流的任務協同管理，全過程監測任務的時間、成本和績效； （ 5 ）測試評價，通過測試覆蓋和缺陷報告等方法來進行測試評價。 -
Based on the experimental data and analysis, temperature, temperature stress and temperature crack mechanism of the concrete sidewall of metro station with iterative structure are studied, and the crack control measures are put forward
摘要依據實驗研究教據和理論分析，對地鐵疊合結構車站側墻混凝土的溫度、溫度應力和溫度致裂機理進行研究，從溫度控制的角度提出裂縫控制措施。
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