舌尖上的鸡蛋

鸡蛋以其多样的烹调方式受到世人的喜爱。它不仅可以煎、煮、炒、烧、蒸、打汤,还可以做蛋糕或蛋饼。对于我来说,最简单的莫过于甜酒冲蛋。每逢假期,父母不在家的时候,我便会自己做甜酒冲蛋。取两三个鸡蛋,小心地在碗沿敲出细缝,再用手指沿细缝将蛋壳分开,把蛋清和蛋黄倒入碗中仔细搅匀,以有气泡者为佳。将冷水放入锅中煮沸,水不用太多,烧开后将甜酒倒入。再开时倒入鸡蛋,这时你会发现,鸡蛋变为一缕缕淡黄色的絮状     

我们之间——赠这辈子最好的朋友,小易

阻隔你我的是无法捕捉的回忆昨日的歌声只能托付给从前我们之间的誓言未曾说出口就已输给了时间我们之间的承诺还未整装出发就注定彼此失约指导老师:李忠民     

Spectrum allocation and protocol based on cognitive acoustic technique in underwater networks

In this paper, a strategy is developed for spectrum sharing among multiple cognitive users in underwater environment. This strategy requires all nodes to negotiate and reallocate the channels before sending data, and Hungarian method is used to maximize the sharing rewards. Simulation results show that the proposed strategy can avoid collisions between source-destination node pairs, and guarantee that the communication system gets maximum sharing rewards. Both the parameters of POMDP model and the number of available channels have influence on the system sharing rewards, and the rewards will increase when the channels have larger transition probabilities or more channels are available for communication. However, the channels with larger bandwidths can attract more nodes to access, and thus will lead to more collisions.     

仙人掌

你们了解仙人掌吗?不了解的话,就让我讲讲仙人掌吧! 仙人掌浑身多刺,好像边疆的卫士神圣不可侵犯。它的茎呈扁平状,是绿色的。仙人掌有2000多种,有仙人柱、仙人山、仙人球、仙人拳……仙人掌的故乡在墨西哥,那里有世界上最大的仙人掌,可称仙人掌世界的王中之王。