time diffusion technique 中文意思是什麼

time diffusion technique 解釋
定時擴散術
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • diffusion : n. 1. 散布，發散。2. 傳播，普及。3. 冗長。4. 【化學】滲濾。5. 【物理學】擴散，漫射。
  • technique : n. 1. （專門）技術；（藝術上的）技巧，技能。2. 手法〈如畫法，演奏法等〉。3. 方法。
  1. 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。
  2. By using diffusion welding method ( under certain welding parameters such as temperature, pressure, time and atmosphere, etc ) and employing rational structural control technique, a kind of 93w - ofc - tc4 - a1 - mb2 system flier - plate with good parallelism, planeness and high densification was prepared, which met the needs of initial design and the basic requirement of flier - plates

    利用平面擴散焊接法（控制一定的溫度、壓力、時間、氣氛等條件） ，同時採取合理的結構控制方法，成功實現了93w - ofc - tc _ 4 - al - mb _ 2的整體連接，得到了平面性好、平行精度高、整體緻密的波阻抗梯度飛片，滿足了設計結果和梯度飛片的基本結構要求。
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