流形理論 的英文怎麼說
中文拼音 [liúxínglǐlún]
流形理論
英文
theory of manifolds-
The best optimum mathematical model is constituted. scalar factor of structural parameter on loop rectangular negative pressure and adsorption slide is calculated. structural parameter, air gas source pressure carrying capacity and thickness of air cell are made sure by hydrodynamics and the theory of gas lubrication
詳細論述了導軌副的設計過程，運用數學上的拉格朗日條件極值求解法，建立最優化數學模型，求出環矩形負壓吸附導軌的結構參數的比例情況，並運用流體力學和氣體潤滑理論確定了環矩形負壓吸附導軌的結構參數、氣源氣壓、承載能力和氣膜厚度的確定性結論。Vsp is both a pivotal tache in logistic distribution optimization and indispensable in electronic commerce. it can increase logistic economic benefit and realize logistic rationalization. the systemic study on the theory and method of vsp is the base on the growth of logistic intensivism, the establishment of modem chain of command, the development of its and ec. now, the problem is not only applied to the field of auto transportation, but also to ship avigation communication electricity industry management computer application etc. the algorithm has been applied into many combinatorial optimization problems such as the trainman ' s shift arrangement in avigation the optimization design of cargo arrangement in ship company
對貨運車輛進行調度優化，可以提高物流經濟效益、實現物流科學化。對貨運車輛調度優化理論與方法進行系統研究是物流集約化發展、建立現代調度指揮系統、發展智能交通運輸系統和開展電子商務的基礎。目前，問題的形式已有很大發展，該問題以不僅僅局限於汽車運輸領域，在水運、航空、通訊、電力、工業管理、計算機應用等領域也有一定的應用，其演算法已用於航空乘務員輪班安排、輪船公司運送貨物經過港口與貨物安排的優化設計、交通車線路安排、生產系統中的計劃與控制等多種組合優化問題。In the first part, it was discussed that the effect of different distribution of shale in shaly sandstones on their permeability based on capillary buddle model
第一部分，在毛細管束模型基礎上，從流體力學理論出發，探討了泥質的不同分佈形式對滲透率的影響。According to the system technology require, adopting singlechip realize open loop digital control of hdclsm ; using v / f conversion and complex key - control method realize digital setting of system parameter, such as velocity ; using micro - stepping control insure the motor running more smoothly ; adopting debasing speed control method to eliminate the mechanical impact of distance termination effectively ; at the same time, analyzing main power circuits drive circuit and protect circuit of system, completing hardware design and facture and software programming and debugging ; at last, making a whole test in hybrid rotary step motor. the experiment result indicates that this control system reaches the qualities required and run smoothly also
根據系統技術要求，採用單片機實現了混合式直流直線步進電動機的開環數字控制；利用v f變換和復合鍵控方法實現了系統轉速等參數的數字設定；利用細分控制技術保證了電機運行的平穩性，並進行了波形分析和理論研究；採用單片機軟體降速控制策略解決直線步進電機行程末端的機械沖擊問題；同時對主功率電路、驅動電路和系統保護電路進行了分析，完成了硬體設計、製作和軟體編程、調試，最後在混合式旋轉步進電動機上進行了全面測試。Applying the results to optimal controller to realize the minimizer of the cost function of mkdv - burgers equation under neumann and dirichlet boundary control. secondly, using inertial manifold and approximate inertial manifold theory, the approximate inertial manifold under fourier bases is given and we construct a set of odes of three modes to obtain the long - time dynamic behavior
其次，利用慣性流形和近似慣性流形理論，給出mkdv - burgers方程在fourier基下的近似慣性流形，並且把這一方程所確定的無窮維動力系統約化為一組三模態下的常微分方程組，從而研究這一方程所確定的動力系統的長期動力學行為。In this paper we study the single - species chemostat model with time dilay. based on [ 8 ], we analyze the hopf bifurcation of the system which take the diluton as a parameter, and we obtain that under the conditon of the existence of positive equilibrium and if the dilution is too big or too small, the system will appear hopf bifurcation
在文[ 8 ]的基礎上，以模型中的流量為參數進行了hopf分支分析。得出了在正平衡點存在的條件下，當流量較大或較小時，系統的正平衡點附近會產生hopf分支，並應用中心流形和規范形理論給出了分支方向及分支周期解穩定性的計算公式。But it is thought that the mature pump inner flow numeric computation was started and then developed rapidly after the " two relative flow surface " ( the s1 and s2 ) theory presented by professor wuzhonghua
但具有完備形態的內流數值模擬，一般認為始於吳仲華教授的s1 、 s2兩類相對流面理論后，葉輪機械內流數值模擬才得到了迅速發展。The fluctuation characteristics of liquid slug length in the downward inclined pipe with a large range of gas and liquid velocities were investigated on the basis of fractional theory of air / water slug flow
摘要利用非線性分析技術中的分形理論在較寬的流速范圍內對下傾管中空氣水段塞流的液塞長度波動特性進行了研究。Based on the fractal character of the small watershed topographic feature, the spatial and temporal variation character of sediment yield of the watershed model, the dynamic developing process and fractal character of the topog raphic feature of the watershed model, and the coupling relationship between the sediment yield and the topographic feature of the watershed model are " studied by simulate experiment, fractal theory, high precise photogrammetry and gis technology. the validation research is conducted in chabagou watershed where the observation data of rainfall, sediment and runoff for 11 years is collected. the study provides new theory and method for the topographic feature quantitative research in the prediction model of small watershed sediment yield
本文依據流域地貌形態所具有的顯著分形特徵，從模擬實驗出發，利用分形理論和方法，結合高精度攝影測量和gis技術，對流域模型侵蝕產沙時空變異特徵、地貌形態發育過程及其相應的分形特徵、流域模型侵蝕產沙與地貌形態耦合關系進行了深入研究，並以具有11年降雨泥沙徑流觀測資料的岔巴溝流域為例進行了驗證研究，為實現從單坡面侵蝕產沙模擬、預報向流域侵蝕產沙模擬、預報轉化過程中地貌形態參數的提取提供了理論和方法，為黃土高原小流域水土流失綜合治理提供了科學實踐依據。In this paper, the two - phase flow behaviors of gas - solid circulating fluidized bed have been first studied by analysing experimental data. then, based on fractal theory wavelet package analysis ( wpa ) de - noising method was used to denoise solids concentration and pressure fluctuation signals. the solids concentration signals have also been investigated by wavelet multi - resolution analysis and wavelet package decompose, contributed to disclose the non - uniform flow structures of gas - solids phase
然後將基於分形理論的小波包消噪方法用於顆粒濃度和壓力波動去噪，並對氣固流化床中的顆粒濃度信號進行了小波多分辨分析和小波包多尺度分解，從新角度揭示了氣固流態化系統的非均勻氣固兩相流動結構。In recent years, the seepage flow mathematical models in fractal reservoir have been extensively developed and applied and have become important methods to research nonlinear seepage flow regularity in complex reservoir
以分形理論為基礎建立的分形油藏模型已經得到了廣泛的研究和應用，成為目前研究復雜油氣藏非線性滲流規律的一個重要工具。In the end, the theory of fractal geometry is applied to the waves propagation and scattering in atmospheric turbulence, and the first and second order moments of the scattering fields are derived by considering the effects of the fractal atmospheric turbulence. the normalized back - scattering radar cross section of a perfectly conducting disk is calculated. the influence of fractal dimension of atmospheric turbulence on the radar cross section is analyzed
本文最後將分形理論引入到湍流大氣中的波傳播和散射領域，導出了分形大氣湍流中光滑導體目標散射場的一階矩和二階矩，以光滑導體圓盤為例研究了湍流大氣的分維對導體目標後向散射截面的影響。With the theory of the diffusion - limited colloidal aggregation model ( dlca ), the processes of particles aggregation and breaking of the clusters are simulated. the fractal theory is applied to analysis of the aggregation structure of nanoparticles
在dcla生長模型的基礎上，模擬了納米粒子的聚集過程和大粒子團的分裂，並用分形理論對納米流體的聚集結構進行了描述。Considering the demand of the development in the rural areas, as a elementary theoretic system, the rural logistics theory is established on the basis of marxism circulation theory, western economic theories, the marketing and logistics management theory, enterprise ' s theory and rural social service system theory
農村物流的理論是依據馬克思主義的流通理論、西方經濟學相關理論、市場營銷理論、物流管理、企業理論和農業社會化服務體系理論，同時結合農村實際發展的需要而形成的一套基礎性理論體系。We exhibit calculating formula about direction of hopf bifurcation and the bifurcation periodic solutions in the first bifurcated to and so on with norm form theory and center mainfold theorem, furthermore, we carry out numerical simulated compution with mathematica. finally, the charting are performed with mat - lab
我們還用中心流形和規范形理論，給出了在第一個分支點_ 0處的hopf分支方向，分支周期解的穩定性的計算公式。Based on this study, the writer put forward the chain operation of its agricultural means of production, then discuss the feasibility and the main line of thoughts of chain management in farming material by drawing on the successful experiences of foreign countries in chain commerce, and finally the writer proposes the form and the tactics of chain management and discuss in details in three parts : joining enterprises - management system, rebuilding information procedure and agricultural service system
在此基礎上，提出農資公司應該走農資連鎖經營之路，繼而借鑒國內外商業連鎖經營成功經驗和運用商品流通理論，探討農資公司實施農資連鎖經營的可行性和方案設計的主要思路，確定連鎖經營的形式和總體策略，並在加盟商管理體系、信息流程再造和農化服務體系三個部分中詳細闡述。The denoising results about solids holdup and pressure fluctuation signals of gas - solids cfb riser indicate that wpa denoising method based on fractal theory can efficiently differentiate the noises from the solids holdup signals, and the denoised effect is much better than that by filter method based on the fourier transform
氣固循環流化床提升管的顆粒濃度和壓力波動信號的去噪結果表明，基於分形理論的小波包去噪方法能有效地區分真實信號和噪聲信號，去噪效果優于傳統的傅立葉變換的濾波方法。A preliminary study was carried out on the method of acquiring parameters for soil dual - porosity model and the analysis for the simulation of soil nitrate leaching by dual - porosity model. the feasibility and experimental conditions of soil particle size analyzing by the laser particle - size analysis was discussed, based on the comparison results of nine soil samples by the laser particle - size analysis and traditional pipette and sieve analysis
本文初步探討了土壤兩域模型的參數獲取方法及兩域模型應用於土壤硝酸鹽淋洗的模擬分析，為進一步研究優先流以及分形理論在土壤溶質（包括養分）運移研究中的應用打下基礎，以更準確地模擬和預測農田土壤硝酸鹽的淋洗，為農田水肥優化措施提供依據。The turbulent flow in a circular pipe is one of the most primary flow in the theoretical research and application
流經等截面直圓管的湍流是理論研究和工程應用中最主要的流動形式之一，對它的研究是湍流研究中一個古老而常新的課題。According to the soil particle distribution theory and the fractal theory, this paper studied soil structural property of seven different forest types and grassland
摘要運用土壤粒徑質量分佈原理與分形理論，對淄川峨莊流域內7種林分和對照荒草地的土壤結構特徵進行研究。分享友人