与青春有关的日子
宝马董事长称不应设定汽油车淘汰日期_我的网站
A | 他说道：“我们不希望低收入人群无力购买汽车。
B | 如果突然之间，只有富人才能买得起汽车，这将会是一件危险的事情。
Chinese researchers have developed a multifunctional electrode coating that addresses key challenges in long-term brain-computer interface (BCI) implantation, including signal loss and tissue adhesion, bringing BCI one step closer to clinical application, the Global Times learned from the research team behind the findings on Sunday.
As an emerging field combining neuroscience and artificial intelligence (AI), BCI faces a major challenge of ensuring long-term compatibility between electrodes and brain tissue. Previous clinical trials showed that immune responses could cause implanted electrodes to retract after just three months, severely reducing signal quality and the number of available channels.
This problem stems from chronic inflammation triggered by implants, which creates insulating scar tissue around electrodes and separates them from neurons. Irreversible adhesion between electrodes and brain tissue after long-term implantation also makes device removal risky, potentially causing brain injury during follow-up surgeries.
Experiments showed that flexible neural electrodes coated with this material could operate stably in the brain for more than 300 days and could be safely removed without causing damage. This means the universal coating technology can make electrodes not only operate stably over the long term but can also be safely removed and replaced after aging, paving the way for long-term BCI applications.
Developed by the research team led by Zhang Wei at the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, associated with Beijing Tiantan Hospital, Shanghai Institute of Microsystem and Information Technology and NeuroXess, a high-tech life science company specializing in BCI technologies, the cationic alternating peptide electrode coating preserves electrode flexibility and conductivity, while offering antibacterial, anti-protein adsorption and immune-rejection-inhibiting functions.
A 300-day animal study showed the coating's effectiveness. Bare electrodes experienced a sharp loss of recording capability after 90 days of implantation and could barely detect neuronal signals after 300 days. In contrast, coated electrodes maintained stable recording channels and consistently captured neural signals above 155 microvolts.
In terms of neural modulation, after 300 days of implantation, conventional electrodes required a current of 100 microamps to induce weak limb responses, while coated electrodes triggered clear movements with only 2 microamps, improving modulation efficiency by 50 times.
Notably, the removal tests highlighted a key advantage of the coating that electrodes no longer form irreversible bonds with brain tissue. In the experiments, the coated electrodes were removed intact, with minimal damage to the surrounding brain tissue, Zhang told the Global Times on Sunday.
。”Zipse表示，宝马支持美国的车辆监管政策，但是设定内燃机汽车禁售日期，会让人们一直驾驶老旧车辆，“而这并不是我们想要的”。图片来源：宝马
宝马的竞争对手通用此前表示，该公司计划在2035年之前停止销售汽油动力乘用车。美国加利福尼亚州在今年8月通过新规定，2035年时，所有在该州销售的新车都必须是纯电动或插电式混合动力车型。Zipse表示，目前在全球范围内，“没有迹象”表明内燃机将在未来15年内被淘汰。在被问到宝马会在何时停产内燃机汽车时，Zipse仅表示该公司目前没有这方面的计划。
C | 美国总统乔·拜登（Joe Biden）呼吁，2030年时美国新车总销量中应有50%来自纯电动或插电式混合动力车型，但是他并未认可设定汽油车淘汰日期的做法。宝马预计，到2030年时，其销量中将至少有50%来自零排放汽车，并称其今年的电动汽车销量将增加一倍以上。Zipse说道：“这是法规、客户情绪和产品的共同产物。市场就在那里，它正在增长。
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