what is a second order wave?

Question

what is meant by second order? references please....

Answer 1

Most of the references I found refer to predicting water wave loads on structures. The first-order or linearized formulas don't account for some load contributions. From the ref,
"The second-order phenomena in monochromatic waves are the steady mean drift forces and the oscillating forces with a frequency twice the first order frequency.
The force oscillating with the difference of frequencies that cause slow-drift motion of moored structures and the loads with sum frequencies that cause springing on TLPs are the second-order phenomena in multi-chromatic waves."
(Mono- and multi-chromatic refer to single- and multiple-frequency; a TLP is a tension-leg oil platform.)

Answer 2

As good because the aspects made beforehand, an predominant target is difficult the ideological feminist speculation that guy are not as good as females. These strategies have polluted the minds of guys and females for many years through the media and feature been extensively unchallenged in academia. As I have highlighted in a few prior questions and solutions, feminist proof is both wholly missing (e.g. Super Bowl Sunday & home violence) inaccurate (e.g. guys are so much wealthier than females after divorce) or biased (e.g. females don't interact in home violence). In my enjoy on G&WS many females don't seem to be all set to have the historic feminist perspectives puzzled allow on my own debunked. (Some probably are, however don't seem to be precisely vocal approximately it). Because persons mostly recognize what is right I feel its predominant to maintain highlighting the reality, regardless of how adversarial or it appears deaf the reception. A factor of order: Second wave? Seriously, has there been a primary wave?