Focused on the issue that energy consumption is excessively high in the underwater wireless sensor cooperative communication networks, to balance the energy consumption between the nodes and increase the channel capacity of the system, a distributed power allocation game-theoretic algorithm based on the node residual energy was proposed. The trading model between the user node and the relay node was constructed as a two-tier Stackelberg game, so that the node with less residual energy could provide less power for forwarding service, otherwise the node with more residual energy could provide more power to service, so as to balance the energy consumption between nodes. Compared with the algorithm without considering the residual energy, the channel capacity increases by 9.4%, 23.1% and 16.7% when there are 2, 3, 4 relay nodes respectively. The simulation results show that the algorithm not only improves the total channel capacity of the system, but also prolongs the lifetime of the underwater sensor cooperative communication network.

With a controlled experiment, the co-encoding of interrogative meaning and focus on Uyghur intonation was systematically investigated. The results show that focus has effects on both pitch and duration of an interrogative sentence: 1) On-focus words exhibit F0 increase and pitch range expansion, post-focus words maintain high F0, while pre-focus words leave F0 largely intact. 2) An important feature of interrogative intonation is the significant F0 rising in sentence final syllable. Besides, the intonation after a focused word in question is distinctly higher than that in statement. 3) Duration of on-focus words is lengthened, while pre-focus and post-focus words do not show obvious duration variation. 4) Compared with statement, sentence duration of question is longer, which is mainly manifested as the lengthening of sentence final syllable. In summary, Uyghur, like Chinese and English, supports Parallel Encoding and Target Approximation (PENTA) intonation model. However, the three languages display different ways of post-focus intonation manipulation in questions.