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明起，杭州降雨又要升级！台风过后请注意这件事_我的网站

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    Photo: VCG
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.
。    今天，杭州出现了久违的阳光明媚，但这不意味着雨水下线。市气象局最新消息：预计13日—14日杭州的降雨量将会明显增大，局地可能出现短时强降水、雷雨大风等强对流天气。

B | 在台风“白海豚”影响下，杭州气温降低，持续降雨又导致湿度显著升高，因此近期请大家注意做好除湿工作。今天上午，杭州出现了久违的大太阳，有人惊喜，“终于见到太阳了”。也有人惊讶，“是不是高温又要回来了？”小布想告诉大家，接下来的两天，杭州的雨又要升级了！明起，杭州降雨升级！局地可能出现强对流天气台风“白海豚”昨天在湖北省境内减弱为热带低压，中央气象台已于昨天17时对其停止编号。台风虽然减弱停编，然而造雨能力不减。昨天白天到夜间，湖北、河南、安徽、浙江等地部分地区出现暴雨到大暴雨、局地特大暴雨。从今天的卫星云图上可以看到，“白海豚”的残余环流结合了西风槽以及台风的尾流，共同组合成为范围广阔的降水系统。中央气象台今天早晨继续发布暴雨橙色预警和强对流天气蓝色预警，其中特别指出，河南作为强降雨中心，昨日已出现大暴雨或特大暴雨，今天强降雨还将持续，局地两日累计雨量或超过500毫米。这样的降雨强度，甚至已经超出了很多“白海豚”移动经过的区域。而在天气形势图上可见，这片降水系统的东边和西边都是高压系统，导致降水系统相对较为稳定。受其影响，杭州在短期之内多雨的天气格局不会改变。更加值得关注的是，“白海豚”的尾流里，由于西南季风和高压底部的东南气流交汇，还将催生出新的低压系统。未来，“白海豚”的残余低压缓慢东移，与东边新生低压逐渐靠近，进一步增强了杭州上空的辐合上升运动，加上季风源源不断输送水汽，预计13日—14日杭州的降雨量将会明显增大，局地可能出现短时强降水、雷雨大风等强对流天气。

C | 台风“白海豚”过后请大家做好日常除湿工作自从台风“白海豚”开始影响以来，杭州气温已经比前期明显回落，10日—11日主城区最高气温都不足30℃，今天起小幅回升到30℃出头。

D | 虽然达不到高温线，但前期持续降雨导致湿度显著升高，加上低压环流影响造成气压降低，整体感觉闷热潮湿，体感如梅雨季一般。大家可参照梅雨期的生活方式，做好日常应对，注意除湿降温，规避潮湿闷热天气引发的体感不适、衣物发霉等问题。此外，特别提醒大家，暑期也是旅游出行的高峰期，请大家务必密切关注沿途和目的地的天气预报及气象灾害预警信息，提前规划行程。如遇暴雨、强对流等灾害性天气，需主动规避各类风险，远离河道、山体、低洼积水、地质灾害易发区等危险区域。同时，全程严格遵守各景区安全管理规定，遵从景区工作人员指引，不擅自进入未开发、未开放的野外区域和危险点位，全力保障自身出行安全。

E | 温馨提示前期累计雨量大，请注意防范地质灾害滞后性可能导致的山体滑坡、泥石流、小流域山洪等次生灾害。

F | 天气趋势预报杭州市气象台8月12日10时发布13日（周四）：多云到阴，部分阴有阵雨或雷雨，有雷雨时短时风雨较大，26~31℃，偏东风4~5级阵风6级；14日（周五）：阴有阵雨或雷雨，有雷雨时短时风雨较大，25~30℃，偏东风3~4级；15日（周六）：多云到阴部分有阵雨或雷雨，25~31℃，偏东风3~4级阵风5级；16日（周日）：多云到阴部分有阵雨或雷雨，25~32℃，偏东风3~4级阵风5级；17日（周一）：多云到阴部分有阵雨或雷雨，25~32℃，偏东风3~4级阵风5级；18日（周二）：多云到阴部分有阵雨或雷雨，26~31℃，偏东风3~4级阵风5级。资料/市气象局。

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Published on:20:57:45