top-down method 中文意思是什麼

top-down method 解釋
自頂向下的方法
  • top : n (opp bottom foot)1 頂,頂部,頂端。2 頭,頭頂;尖端;樹梢,樹頂;(事物的)上層部分。3 最高位...
  • down : adv (downmost)1 向下(面);下,降;在下(面)。 come down 下來;下(樓)來;(雨等)落下。 The...
  • method : n 1 方法,方式;順序。2 (思想、言談上的)條理,規律,秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. Adopting the method of top - down, the virtual memory is divided into memory mange related unit ( segment unit and page unit ) and protection mode related unit ( protection test unit, debug test unit and exception detect unit ). data buses and control bused are designed separately for all of the units. vhdl codes are written and simulated

    Amex86的虛擬存儲器採用自頂向下的設計方法,把虛擬存儲器劃分為地址管理相關單元(又包括分段單元和分頁單元) 、保護模式相關單元(又包括保護測試單元、調試異常單元利異常檢測單元等) ,分別確立其數據通路和控制通路,完成了vhdl的編碼和模擬工作,通過測試程序模擬驗證了其功能的正確性並測定了基本性能。
  2. The aggregation method reduces the dimension and the complexity of the micro - system, but the aggregation model is not the copy of the micro - system, so it makes new global properties emerge at the macro - level which is called emergence. in this paper, the concept of the functional emergence and the dynamical emergence are defined. the direction of emergence effect is bottom - up, and there also exists top - down effect which is called immergence

    北京工業大學工學碩士論文通過模型的聚合縮減了模型的規模,給系統的分析和研究帶來了方便,但聚合模型畢竟不是原模型的拷貝,所以在聚合模型中會表現出同原模型不同的行為特性,微觀系統中微變量的變化會導致聚合模型不同的行為特性;即低層對高層的影響,這種影響稱為行為突現( eme , gence ) 。
  3. Base on the practices, it was concluded that the " time - space effects " excavation method combining with the ground reinforcement could be employed to control the deflection in deep foundation pits under the top - down construction condition, and consequently to protect the neighboring facilities

    在工程實踐的基礎上提出結合坑內土體加固採用時空效應法的開挖技術是逆作開挖條件下控制深基坑卸載變形,保護周邊環境和設施的有效方法。
  4. Excavation method for deep foundation pit and top - down construction technique of ribbed plate anchored retaining wall

    深基坑開挖與板肋式錨桿擋墻逆作法施工技術
  5. The algorithm generates three - dimensional terrain model and displays in real time. it uses an efficient and simple method to attain the dependency between sampling points on terrain, and refines the center points in top - down way. it incorporates the dependency of points into their errors so that the cracks inside the terrain block are avoided, at the same time eliminates the cracks at the edges of blocks through adjusting the elevations of those points that cause the cracks

    該演算法基於規則格網數據實時生成三維地形模型,並實時顯示;採用了一種簡單而高效的方法來求解采樣點之間的依賴關系;以「從頂向下」方式細分中心頂點;並把頂點依賴關系融合進頂點誤差中,避免了地形塊內部的裂縫,同時通過調整塊邊界點的高程消除了塊邊界處的裂縫;演算法還具有利用幀間相關性,視相關等方面特點。
  6. Based on top - down design method, the thesis discusses ip ' s soc design and integration technique

    本文採用自上而下的設計方法,討論了基於ip核的soc設計與集成技術。
  7. So the equipment is schemed out to simulate the work - state of aepds, according to the in - out signals of every solid - state power controller ( sspc ) and the stochastic voltage and current of buses. the top - down design method is adopted in the design

    所以作者根據固態功率控制器輸入、輸出信號模擬多路負載,以及匯流條的電壓、電流等在飛機配電系統中的各種工作狀況,研製了「先進飛機配電終端自動測試裝置」 。
  8. Based on the engineering practice of the waihuan station in shanghai urban mass transit line 9, this paper analyses the structure form of the deep foundation pit and the key - nodes design by using the top - down invert method, so as to optimize the engineering

    摘要以上海軌道交通9號線外環路站為實例,介紹了部分逆築法施工的地鐵車站深墓坑圍護結構形式,及其結構設計;著重介紹了基坑圍護結構的計算模型設定、基坑穩定性計算,及圍護結構的基礎施工步驟。
  9. This paper presents the time - dependent performance of an well - instrumented excavation case using the top - down construction method

    摘要本文以一個有完整監測資料之深開挖案例來探討其依時變形行為。
  10. The paper begins with the research of the organization ' s current state and available resource, then demonstrates the necessity and feasibility of system development, puts forward the objective and task of the system by the analysis of whole system, fixs on this system ' s main function and structure by the structured method of top - down and delicatilization step by step, and finally uses the object oriented programming to make the concrete design

    本文從系統的現行狀態和可用資源的調查入手,論證了系統開發的必要性和可行性,通過對整個系統的分析,提出了系統的目標和任務,運用自頂向下、逐步細化的結構化方法確定了系統的主體功能和結構,最後運用面向對象的程序設計方法( oop )進行了具體的設計。
  11. The basic idea for hierarchy - based method is that creating and maintaining a tree of clusters and sub - clusters according to some kind of criterion to measure the distance of clusters, the procedure will be sloped until some terminal conditions are satisfied. hierarchical clustering method can be further classified into agglomerative and divisive hierarchical clustering, depending on whether the hierarchical decomposition is formed in a bottom - up or top - down fashion. most hierarchical clustering methods can produce the better results when the clusters are compact or spherical in shape. but they do not perform well if the clusters are any shape or there are outliers. a main reason is that the most hierarchical clustering methods employ medoid - based measurement as distance between clusters

    基於層次方法的聚類的基本思想足:根據給定的簇間距離度量準則,構造利維護一棵由簇利子簇形成的聚類樹,直至滿足某個終結條件為止。根據層次分解是自底向上還是自頂向下形成,層次聚類方法可以分為凝聚的( agglomerative )和分裂的( divisive ) 。人多數層次聚類演算法在緊密簇或球形簇結構下能夠產生較好的聚類效果。
  12. Object - oriented finite element analysis in construction by the top - down method

    逆作法施工的面向對象有限元數值模擬分析
  13. Based on the hardware architecture of ivtds, are discussed in detail the component units of the system which are image data acquisition unit, data pre - processing unit and logical control etc. the design of the fpga function and its implementation are carried on vhdl language and top - down method

    還在介紹紅外運動目標檢測與跟蹤系統組成的基礎上,詳細討論了圖像數據採集部分的結構,圖像數據的預處理, dsp與fpga之間的通訊和fpga對其他器件的控制邏輯等。
  14. First, steps 1 - 3a of the top - down method are used, primarily to produce the so - called dtos possibly based on standards - based xsds

    首先,請遵循自頂向下方法中的步驟1 - 3a ,這主要是為了生成所謂的dto (可能根據基於標準的xsd ) 。
  15. This paper adopts the top - down method to divide the dma controller 8237 into 4 function modules according to the requirement of the system and the function and behaviors of 8237

    本文從dicta控制器8237的功能出發,採用自上而下的設計方法,按照系統的要求和8237的行為和功能,將8237劃分為四大功能模塊。
  16. A 10bits, 200mhz segmented current - steering dac is designed with the top - down method, which can be applied to the video conversion system. high speed and low dissipation are reached. the traditional dac is classified into three sorts by scaling mode

    本文研究了dac的設計原理和常用結構,並以實際應用為導向,按top - down的方法獨立完成了10bit , 200mhz分段電流舵dac的設計。
  17. While designing the system, we spent a lot of time on considering how to divide and define each module and how to coordinate and interconnect these modules. we followed the top - down method to design. as for the interconnection of each module, we defined the interface signal to communicate between them, and the internal timing of the module was control1ed by states machine

    在系統方案設計過程中,對模塊如何合理劃分及各個模塊之間如何協同工作做了仔細的推敲,按照自上而下的設計方法將各個模塊逐一細化,各模塊之間通過埠信號進行連接,模塊內部則由狀態機控制時序。
  18. When you design your dimensions and cubes by using the top - down method in business intelligence development studio, you create dimension and cube definitions in a microsoft sql server 2005 analysis services ssas project and then use the schema generation wizard to generate a data source view, a data source, and the underlying relational database schema that supports these olap objects

    Microsoft sql server 2005 analysis services ( ssas )提供兩種方法來設計和生成analysis services數據庫:由下至上方法-從現有的關系數據庫開始,創建一個基於關系數據庫架構的數據源視圖,然後使用sql server設計工具和向導創建基於該數據源視圖的analysis services維度和多維數據集。
  19. After listening to the report, lu ming talked about this trip to pengzhou and spoke highly of the achievements made in the reform of the agricultural technology extension system, thinking that such a bottom - up and top - down method would be able to effectively promote the extension of agricultural technology and provide technical service for farmers in a better way, and that the methods of technical extension now should be changed such that they are based on farmers needs

    匯報完畢后,路主任談到了此次彭州之行的感受,對彭州在農技推廣體系改革所取得成果給予了高度評價,認為這種自下而上和自上而下相結合的推廣方法能夠有效促進農技推廣工作,為農民更好提供技術服務,現在推廣工作的方法應該轉變為以農民需求為主的方法。
  20. In the fec part, rs ( reed - solomon ) code and interleave are chosen as the basic elements of the error correction system at first ; then the coding parameter and data structure are determined based on the results of matlab simulation ; at last, hdl modules are implemented in fpga using verilog hdl, test results and simulation diagrams are presented as well. in the designing process, the proper division of the modules and the cooperation between modules need a lot of consideration, and the top - down method is adopted to solve these questions

    在前向糾錯的設計部分,文章首先根據系統的誤比特率要求選擇了rs ( reed - solomon )碼和交織器作為前向糾錯部分的基本構架,再根據matlab的模擬結果得到了具體的編解碼參數和碼字結構,最後在fpga中用硬體描述語言veriloghdl實現了各個編解碼模塊,並給出了測試數據、實現結果及時序模擬波形圖。
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