亚马逊(AMZN.O)推出了具备对话能力和任务管理功能的下一代人工智能助手Alexa+。

Verizon (VZ.N) shares rallied in pre-market trading, up 3.7%.

Soochow University researchers led by Professors Yang Xinbo and Zhang Xiaohong, with Hong Kong Polytechnic University and several photovoltaic firms, developed an indium-free composite interlayer that forms a molecular bridge between perovskite and crystalline silicon. The layer improved power conversion efficiency and long-term stability in tandem photovoltaic cells in a next-generation industrialization project; results were published online in Nature Energy on July 24.