the American White Pelican grows a flat horn-like structure that appears on the top of the bright orange beak during the breeding season.This is called a “nuptial tubercle.” This temporary ...

[导读]Zigbee是智能家居生态系统中最流行的无线通信协议之一，以其可靠性、低功耗和强大的网状网络功能而闻名。在本教程 ...

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China Institute for the Environment and Health, Nanjing University Suzhou ...