zero norm 中文意思是什麼
zero norm
解釋
最低限額-
This dissertation investigates both existence of traveling wave solutions for delayed reaction diffusion systems and lattice differential equations, and global attractor of spatially discretized fitzhugh - nagumo equations with dirichlet or neumann boundary conditions. for delayed reaction diffusion systems, the existence of traveling wavefronts in diffusive and coorperative system with time delays is provided, firstly ; the monotone iteration scheme, together with upper - lower solution technique, is applied to establish the existence of traveling wavefronts of delayed reaction diffusion systems with some zero diffusive coefficients. secondly, schauder fixed point theorem is applied to some operators to prove the existence of traveling wave solutions in a properly subset equipped with exponential decay norm, which is obtained from a pair of upper and lower solutions for delayed reaction diffusion systems with non - quasimonotoiiicity
對于時滯反應擴散方程，我們先利用吳建宏和鄒幸福[ j . dynam . diff . eqns2001 （ 3 ） ]中的主要定理來研究時滯競爭擴散lotka - volterra系統波前解的存在性，給出了這個定理在非線性項滿足弱擬單調條件（ qm * ）時在系統情況中的應用；並利用單調迭代方法和上、下解技術，對于具有部分零擴散系數的時滯反應擴散方程建立波前解的存在性定理，對于具有部分零擴散系數的時滯反應擴散方程建立波前解的存在性定理。 -
Abstract : this paper developed time domain integral constraints on error response for siso feedback control systems caused by nominal plant ' s near cancellation of stable pole - zero near the j - axis. these integral constraints should be satisfied by any feedback control systems. these integral constraints give new insight into the inherent trade - offs. it will result in the settling time longer or the infinite norm of the error response larger when there are near cancellations of stable pole - zero near the j - axis. hence, when feedback control systems are designed, it is necessary to avoid the compensator ' s poles and zeros nearly cancelling the nominal ' s zeros and poles ( even if these poles and zeros are stable )
文摘:導出了單輸入單輸出反饋控制系統誤差響應基於名義系統穩定的零、極點近似相消的時間域積分約束，此積分約束是任何反饋控制系統均應滿足的.這一約束給出了單輸入單輸出反饋系統固有折中的新的觀點.名義系統穩定的零、極點近似相消的存在導致反饋控制系統的調節時間延長或者誤差響應的無窮范數變大.因此，在反饋控制系統設計中，盡量避免補償器的零、極點與名義系統的極、零點近似相消（即使這些零、極點是穩定的） -
The zero dynamics were divided into several types, and the relations between the zero dynamics of general nonlinear system and that of its adjoint system norm were discussed by using functional analysis
摘要將零動態分為幾種類型，運用泛函分析等工具，研究了一般非線性系統與其作為仿射非線性的系統的伴隨系統的零動態之間的關系。 -
The zero dynamics, norm form and local feedback asymptotic stabilization for general nonlinear control systems
正則標準形與局部反饋漸近鎮定 -
The two kinds of joint connection half - rigidity characteristic about gabled frames are discussed. the criterion among rigid connection, zero rigidity connection, half rigidity connection is determined ; the joint ' s moment and rotation angle curve is analyzed ; the calculation method about joint initial rigidity is brought forward ; the ultimate moment ' s calculation formula is deduced ; the result calculated by the formulas is compared to one calculated by the norm ' s formulas
探討了門式剛架兩種端板節點連接的半剛性特性，確定了節點剛接、鉸接和半剛接劃分的標準；分析了節點受力時的彎矩轉角曲線關系；提出了節點的初始剛度的計算方法；提出了節點極限彎矩的計算公式，並與規范關于節點抗彎承載力計算的結果進行了比較。
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