The great majority of analyses of advertisements concentrated on their contents, and very few on their signalfunction.
大量对广告的分析，集中在广告传播的内容层面，而较少注意到广告的信号作用。
2
In the last chapter we study the asymptotic behavior of solutions to the model when the signalfunction is a nonlinear constant function.
第三章研究信号函数为分段常数非线性函数时模型解的渐近行为。
3
In summary, this study proved signalfunction and transmission pathway in inter-jujube in field conditions, explored defense response mechanism in neighbouring jujube exposed by HIPVs.