a wave that repeats , like the one above , is called a periodic wave. 波象上图所示是重复的,被称为周期波。 www.ichacha.net 2. No matter from the wave type structure, space, time, speed, all the signs are that, large periodic wave two adjustment will end. 无论从浪型结构、空间、时间...
This chapter discusses time periodic solutions of a semilinear wave equation. It discusses a result for the problem of finding time-periodic solutions of a specific semilinear wave equation. The chapter presents a theorem whose proof relies on the minimax existence techniques from the calculus of ...
The number of complete cycles of aperiodicprocess occurring per unit time. 生命周期是经济学中用的一个术语. 期刊摘选 Discretionary fixed costs arise fromperiodic( usually yearly ) budget decisions that reflect top management policies. 可自由处理固定成本产生于反映高层管理人员政策的定期 ( 通常是一年 )...
Time quasi-periodic gravity water waves in finite depth We prove the existence and the linear stability of Cantor families of small amplitude time quasi-periodic standing water wave solutions - namely periodic a... B Pietro,B Massimiliano,H Emanuele,... - 《Inventiones Mathematicae》 被引量: ...
The late-time macrodispersion coefficients are obtained for the case of flow in the presence of a small-scale deterministic transient in a three-dimensiona... Naff,R. L. - 《Water Resources Research》 被引量: 48发表: 1998年 Physics-Informed Neural Networks with Periodic Activation Functions fo...
it is shown that the empirical processes of the positions and the velocities respectively converge to solutions of the continuity equation and the Euler equation, in the limit as the particle number tends to infinity.关键词: IDENTIFICATION DISTRIBUTED PARAMETER SYSTEMS WAVE EQUATION BOUNDARY ELEMENT ...
Time-domain wave-oriented data processing of scattering by nonuniform truncated gratings B. Felsen, "Time-domain wave-oriented data processing of scattering by nonuniform truncated gratings", J. Opt. Soc. Amer. A , vol. 11,... D Kralj,M Mcclure,L Carin,... - 《Journal of the Optical ...
The function c satisfies c(-u)=c(u)≥c 0 >0, c ' (u)>0 for u>0, and c ' has a jump at zero. The solution they construct is shock- free with the only singularities being centered simple waves.关键词: WAVE-FORM RELAXATION METHOD VLSI CIRCUIT SIMULATION INTERCONNECT MODELS ...
A clear quasiperiodic (QP) time modulation of the wave intensity is present in more than 5% of events. We perform a systematic analysis of these EN events with QP modulation of the wave intensity. Such events occur usually in the noon‐to‐dawn magnetic local time sector. Their occurrence ...
We prove the existence of smooth positive potentials V(t, x), periodic in time and with compact support in x, for which the Cauchy problem for the wave equation u<sub>tt</sub> − Δ<sub>x</sub>u + V(t, x)u = 0 has solutions with exponentially growing global and local energy....