Peking University’s School of Integrated Circuits and the Shanghai Institute of Microsystem and Information Technology (Chinese Academy of Sciences) have developed the world’s first neurodynamics system chip using phase‑change memristors. The chip reduces single‑step latency to 2.12 ms and delivers 50–478x speedups versus advanced GPUs on cortical reconstruction tasks, addressing a decades‑long real‑time computing bottleneck; results were published in Science in the early hours of the 3rd.

2026-07-04

Peking University’s School of Integrated Circuits and the Shanghai Institute of Microsystem and Information Technology (Chinese Academy of Sciences) have developed the world’s first neurodynamics system chip using phase‑change memristors. The chip reduces single‑step latency to 2.12 ms and delivers 50–478x speedups versus advanced GPUs on cortical reconstruction tasks, addressing a decades‑long real‑time computing bottleneck; results were published in Science in the early hours of the 3rd.

其他消息
2026-07-04

German Chancellor Merz held a phone call with Ukrainian President Zelenskiy to discuss Russian airstrikes on Kyiv and other parts of Ukraine.

2026-07-04

据纽约时报,伊朗历来存在激烈的政治竞争,有时会爆发到公众视野中。但传统上,这些分歧存在于保守派与改革派之间,前者坚持伊斯兰革命的宗教和反西方意识形态,后者寻求变革却屡屡受挫。而如今,在拥有所有重大决策绝对权力的前最高领袖哈梅内伊遇刺后留下的真空中,保守派已经分裂。 一方自称务实派,认为国家的生存需要结束与美国的敌对状态并开放经济。另一方是少数强硬派,拒绝向美国做出任何让步(包括在核计划问题上)并认为伊朗可以通过延长战争来取胜。 据四名伊朗高级官员和两名革命卫队成员透露,公开的分歧只是冰山一角,更深的裂痕正在幕后形成。他们描述了一场激烈的争夺战:每一方都试图争取新最高领袖穆杰塔巴拉作为盟友,主导伊朗的政治未来。据他们称, 目前务实派(包括革命卫队高级将领、议会议长卡利巴夫、总统佩泽希齐扬和最高国家安全委员会秘书佐尔加德尔将军)已占据上风。 他们无视外界噪音,推进了关于接受停火、与美国副总统万斯直接谈判以及与特朗普签署协议的关键决策。 而且最高领袖似乎不再拥有“绝对权力”。自战争爆发以来的几个月里,革命卫队将领们巩固了权力,实际上在治理国家。 一个表明决策已从前最高领袖的绝对权力转向现任最