The study, published in Nature and featured on its cover, describes the supernova, SN2021yfj, as unusually rich in heavy elements such as silicon, sulfur and argon. Most supernovae typically reveal ...

印第安纳州FISHERS - American Resources Corporation (NASDAQ: AREC )的子公司ReElement Technologies Corporation周二宣布与美国磁铁制造商Vulcan Elements签订具有约束力的长期供应协议，为国内磁铁生产提供高纯度稀土氧化物。根据 InvestingPro ...

Vercel发布了AI Elements，这是一个基于shadcn/ui构建的开源React UI原语库，旨在与Vercel AI SDK集成。这些组件（如消息线程、输入框、推理面板和响应操作）可以通过npx ...

2025年08月15日 09:21中关村在线 ...