第七届联合国环境大会 (UNEA-7) 将于2025年12月8-12日在肯尼亚内罗毕联合国环境规划署 (UNEP) 总部举行，主题为“推动构建韧性地球的可持续解决方案”。 大会前的2025年12月1-5日将举行第七次不限成员名额常驻代表委员会会议 (OECPR-7)。 轻触手机屏幕，即可获取会议 ...

Abstract: In traditional bolt assembly, manual efficiency is low, and existing automated assembly machines often damage bolts and nuts during high-speed assembly[1]. This study addresses the critical ...

‡ State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, 5625 Renmin Street, Changchun 130022, P. R. China *To whom correspondence should ...

The seventh session of the United Nations Environment Assembly (UNEA-7) will take place from 8 to 12 December 2025 at the United Nations Environment Programme (UNEP) headquarters in Nairobi, Kenya, on ...

Established in 1945 under the Charter of the United Nations, the General Assembly occupies a central position as the chief deliberative, policymaking and representative organ of the United Nations.

The American Heart Association’s 2025 Adult Basic Life Support Guidelines build upon prior versions with updated recommendations for assessment and management of persons with cardiac arrest, as well ...

The ruling All Progressives Congress (APC) has secured a two-thirds majority in the House of Representatives following the defection of six more lawmakers on Thursday, just weeks after attaining the ...