numerical selection 中文意思是什麼
numerical selection
解釋
號控選擇-
Selection and systematic integration of numerical models for water quality forecast in three gorges reservoir
三峽水庫水質模型的選取和系統集成 -
The result of numerical simulation indicated the tradeoff of breakdown voltage and on - resistance. the selection of structure prefer the thicker buried oxide layer and the thicker soi layer and the shorter drift length when the breakdown was happened at the interface of soi and buried oxide layer
模擬結果表明，擊穿電壓與導通電阻存在明顯折衷關系，因此在選擇器件結構時要選擇埋氧層厚度大，漂移區濃度高，在保證擊穿發生在縱向的情況下，漂移區長度越小越好。 -
According to the analyses of the research results about the feasibility of 4 - d seismic and the successful 4 - d seismic cases of foreign companies, the author put forward the suggestions for 4 - d seismic pilot area selection ; briefly analyzed the influential function of producing way on the seismic response ; utilized theory calculation, coring data analyses, and reservoir numerical simulation to define the fluid substitution effects on the p - wave velocity. through long time water driven to the reservoir, some of the properties and the log curves have changed, the author tried to find the variation rule of the reservoir and its effects on seismic velocity. the " blind point " in 4 - d seismic feasibility study both in china and overseas was found, that is the lack of consideration of the influence of physical property variation by long time water driven on the seismic response
在深入分析國外四維地震可行性研究成果和成功實例的基礎上，提出了有利於水驅四維地震成功的工區優選條件；簡要剖析了各種開采方式及其對地震特性的影響；利用理論計算、巖心分析、油藏數值模擬三種方法確定了流體替代對縱波速度的影響；通過對長期水驅造成的物性參數、測井曲線以及油藏溫度和壓力變化規律的總結，分析了這些變化對地震速度的影響，指出了目前國內外水驅四維地震可行性研究中存在的盲區?沒有充分考慮長期注水造成的物性、溫度和壓力變化對地震響應的影響，完善了水驅四維地震可行性研究的內容；在考慮了這些變化因素后，高29斷塊水驅四維地震可行性研究結果表明：四維地震監測注水前沿可能要比監測油藏變化容易的多；以四維地震巖石物理可行性研究結果為基礎，提出了五個有助於突出四維地震造成的微小差異的途徑，為今後水驅四維地震研究指明了方向。 -
First of all, the hexahedral meshes are chosen as the cover system of nmm. the cover system of three - dimensional nmm, displacement functions in the all cover systems, the selection of weight functions, diversified unit matrix and numerical integral method of manifold element ( hammer integral method ) are discussed in detail
文中首先選取標準的三維六面體網格作為流形方法的基本覆蓋，研究了三維數值流形方法的有限覆蓋系統、各階覆蓋位移函數、單元權函數的選取、三維數值流形方法中的各種單元矩陣、以及流形單元的數值積分方法（ hammer積分方法） 。 -
It is well known that for an optical pulse, its distribution in time domain is infinite. but only a limited time window width t _ ( w ) may be selected in numerical calculations because of the limitation of the microcomputer. therefore, the selection of t _ ( w ) is also a key aspect that should be considered carefully in numerical simulations
基於此，本文提出了利用分步傅里葉方法計算光脈沖在光纖中傳輸時間窗口的選取方法，給出了正確模擬光脈沖通過不同長度的光纖后光脈沖的變化所要選取的時間窗口（即計算過程中所取的積分上下限之差） 。 -
By means of the numerical subarea regulation of the change of displacement of xietan landslide, the general rules of the selection of deformation monitoring profiles are put forward
藉助水庫型滑坡位移場變化敏感程度數值分區規律，提出三峽庫區水庫型滑坡變形監測剖面選取的一般原則。 -
For the first problem, the successive best selection method is presented based the idea of the greedy method. it is the synthesis of fission and assemble methods. some numerical comparison about them is also given
在分組的尋優上，我們借鑒了貪婪演算法的思想，提出了逐次最優選擇演算法，它是分裂與合併演算法的綜合，大量的數值計算表明該演算法與現有的幾種方法相比更有效。 -
With the fdtd method to solve the maxwell equations, with the finite - volume method to solve the n - s equations and with the single temperature local thermal equilibrium to solve plasma, first time to adopt the method of all numerical simulation, the coupling flow field of microwave plasma within resonant cavity of mpt was analyzed. for tm011 model and tem model, the matching relation between various parameters and its influence on the coupling flow field of microwave plasma within resonant cavity of mpt was studied separately. the reasonable selection of miniaturization design parameters was pointed out in the numerical simulation to be used in mpt miniaturization, i. e. throat, gas flux and microwave power should be smaller suitable after miniaturization
採用fdtd法求解maxwell方程、有限體積法求解n - s方程、單溫度局域熱平衡模型求解等離子體參數，首次用全數值方法對mpt諧振腔進行了微波等離子體耦合流場的數值模擬，分別分析了tm _ （ 011 ）和tem兩種模式各自的參數匹配關系及其對微波等離子體流場的影響；應用於小型化mpt時，指出了小型化設計參數的合理選取，即：小型化后的mpt ，喉徑小、工質流量小，消耗的微波功率也小。 -
Based on the characters of structure of the project, the structural style selection is given and analysis program of the latticed shell of double - layer hyperbolic pyramid cooling tower is programmed by the finite element theory and vb 6. 0 advanced programming language, which includes of 15 programs and directly aims at cooler tower and gives the forcing property by the computing program of the latticed shell of double - layer hyperbolic developed. analysis of static stress and temperature stress is given out by means of three dimens ions members finite element and numerical analysis, optimum design of member sections is given out by full stress, analysis of geometric nonlinear is given out by nonlinear finite element, analysis of earthquake stress is given out by the mode decomposition response - spectrum method, the latticed shell cooling tower compared with the reinforced concrete structure finally
該軟體包括15個程序，其針對性強，直接針對冷卻塔，對該結構進行了受力分析，具體分析包括：採用空間桿件有限元和數值分析方法對結構進行了靜力分析與溫度應力分析；採用滿應力法對應用於冷卻塔的桿件截面進行了優化設計；採用非線性有限元分析方法，並利用荷載增量法對該結構進行幾何非線性分析；採用振型分解反應譜法對網殼的自震特性及地震反應作了一定的研究；並且將具體工程的研究結果與鋼筋混凝土結構冷卻塔進行對比。 -
We mainly investigate the second kind. linear stability analysis and numerical simulations will be used, and the evolution equation of a nonlinear resonator filled with kerr medium, the mean - field model for a nonlinear resonator filled with two - level atomic medium, second - harmonic generation system ( shg ) with quadratically nonlinear material, complex ginzburg - landau equation ( cgle ), and coupled map lattice model ( cml ) will be considered in this dissertation. the paper can be divided into three parts : pattern formation, pattern selection and control of stc, the synchronization and applications of stc
以含有kerr介質非線性光學諧振腔發展方程、含有二能級原子介質的非線性光學諧振腔平均場方程、含有x ~ 2介質的光學二次諧波產生系統模型、及復金茲伯格?朗道方程和耦合映射模型等動力學系統為例，採用線性穩定性分析及數值實驗方法，研究了斑圖形成、斑圖的選擇和時空混沌的控制、時空混沌的同步及其在保密通信方面的應用等三大部分內容。 -
The portable, extensible toolkit for scientific computation, petsc, has become a model of the high performance numerical software which gains huge attention and wide use in commuting community throughout the world. our selection of petsc as the target model of studying is based on following reasons : petsc uses mpi for all parallel communication, which is most fittable for general scalable computing, especially on our pc - cluster platform. petsc is a general purpose suite : of tools for the scalable solution of partial differential equations and related problems, which is much in accord with our research focus
可移植、可擴展科學計算軟體包petsc是近來在國際上很受關注、應用廣泛的高性能并行數值軟體開發典範之一，我們對它的重點學習與研究主要出於以下考慮： petsc基於mpi并行程序設計平臺，適合於我們常用的并行計算機尤其是機群系統；它以偏微分方程、代數方程求解功能為實現重點，非常切合於我們的主要研究方向和應用需求；尤為重要的是，在其良好的軟體使用模式和執行性能下隱含的先進軟體設計思想和程序實現方案，對我們今後的數值軟體開發很有借鑒意義。 -
To accelerate the iterative solution and reduce the iterations, a physically based near - field preconditioner is employed and parallelized. the numerical results show a good preconditioning performance. notifying that the selection standard of the near field preconditioner is physically based, we make some modifications and design a novel data - based preconditioner,
為了加速迭代求解，減少迭代次數，這里採用了一種基於物理概念的近場預條件，並將之并行化，結果表明，該方法實現了較好的預條件效果。 -
Based on paris law, the effects of different parameters of fatigue model and pavement structure on the fatigue propagation rules and fatigue lives of top - down cracks are analyzed using appropriate numerical method, and some recommendations about pavement material selection and structure design are presented
基於paris公式，本文採用合適的數值方法分析了疲勞模型參數和路面結構參數對自上而下裂縫的疲勞擴展規律與疲勞壽命的影響，給出了路面材料選取與路面結構設計等方面的有關建議。 -
A decision - making model and a numerical approach of partner selection were proposed based on multiple classifier fusion rules
應用多分類器融合規則，建立了供應鏈夥伴選擇的決策模型和方法。 -
Based on discussing the study theories of perception doctrine and constructing theoretical foundation in detail, this text is closely connected to teaching practices, from the teaching targets and content of course, course characteristics, teaching objects, the teaching software, the selection of medium information, the teaching of structural design and the system of teaching software the design thoughts of numerical controls technique about the teaching software, introducing the development of teaching software in numerical controls technique and make use of the accurate charts to display some cases about the teaching software in numerical controls technique
本文在詳細論述認知主義學習理論與建構主義學習理論的基礎上，緊密結合教學實踐，從教學目標與教學內容、課程特點、教學對象、教學軟體、媒體信息的選擇、教學軟體知識結構的設計，教學軟體的系統構成等方面闡述了《數控技術》教學軟體的設計思路，介紹了《數控技術》教學軟體的開發技術並運用精確的圖表方式列舉了《數控技術》教學軟體的設計案例，在理論與實踐相結合論述的基礎上，又探討了《數控技術》教學軟體設計的發展方向。 -
Furthermore, selection of parameters in the new algorithm is analyzed, a selection method of parameters which possesses a generality is proposed based on many numerical simulations, and finally the best numerical range of each parameter is determined
對改進演算法的參數選取進行了分析，在大量數值模擬的基礎上提出了具有普遍意義的參數選取方法，並基本確定了各參數的最佳取值范圍。 -
Based on this reality, this thesis makes an effort to search for the most suitable marketing theories and approaches. especially in market segmentation target market selection and market positioning, the author attempts to divide the construction pump market into nine segments according to his interest - oriented role division method and the numerical method of the evaluation of differentiated market. in accordance with its value and the degree of competition, the author picks out five differentiated markets and makes appropriate market positioning strategy in product, brand and corporation by taking into consideration the features of the selected differentiated market
正是基於以上現象，本文在尋找適合中國建築用泵行業的市場營銷的理論與方法上做了些努力，特別在市場細分、目標市場選擇和市場定位方面，嘗試了自創的利益導向型的角色劃分法和細分市場的評價數值法，把中國建築用泵市場細分為九個細分片，並根據價值的高低和競爭程度的強弱選擇了五個細分市場，再針對所選擇細分市場的特點分別在產品、品牌和公司層次上制訂了相應的定位策略。
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