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Adobe Flash Player推送Windows 10更新：未修复安全漏洞_我的网站

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    Different types of consumer lithium primary batteries on display Photo: VCGChinese researchers have developed a new high-energy lithium primary battery that can deliver both long-lasting energy and strong bursts of power while maintaining stable performance at temperatures as low as -40 C, Science and Technology Daily reported on Monday.
A research team led by Chen Zhongwei at the Dalian Institute of Chemical Physics under the Chinese Academy of Sciences developed a 25-ampere-hour pouch-type lithium-metal primary battery. Tests conducted by the safety laboratory of the China Electronics Standardization Institute showed that the battery achieved an energy density of more than 750 Watt-hour per kilogram at a low discharge rate, according to the report.
Meanwhile its discharge rate can be increased by up to 100 times, enabling short bursts of high-current discharge at 10C. The "C" stands for C-rate, which is the charge and discharge rates of a battery. According to sector website Battery University, the capacity of a battery is commonly rated at 1C, meaning that a fully charged battery rated at 1Ah should provide 1A for one hour. The same battery discharging at 0.5C should provide 500mA for two hours, and at 2C it delivers 2A for 30 minutes. 
The new battery puts China among the world's leading players in high-power primary battery technology.
Primary batteries offer high specific energy, long storage times and instant readiness, allowing them to be used immediately even after long storage. 
Primaries play an important role, especially when charging is impractical or impossible, such as in military combat, rescue missions and forest-fire services, the article said. 
Traditional lithium primary batteries can store large amounts of energy for long periods, but their ability to rapidly release that energy can be limited. The new battery is designed to combine high energy density with high power output, allowing it to both operate for extended periods and provide large amounts of power when needed.
The battery can deliver short bursts of high-current discharge at up to 10C and sustain discharge at 4C. At room temperature, its specific power reaches 4,487 Watts per kilogram, according to Science and Technology Daily.
The battery also maintains strong performance under extremely cold conditions. At -40 C, the battery retains an energy density of 447 Watt-hour per kilogram at a 1C discharge rate. Its annual self-discharge rate is below 1 percent, meaning that it loses relatively little stored energy during long periods of standby.
Such characteristics could make the battery suitable for equipment that needs both long-term energy storage and sudden high-power output, including drones, robots, spacecraft and sensors deployed in remote areas.
Chen said the team achieved a breakthrough in cathode materials by developing a high-entropy oxide material and has established a pilot production line with an annual capacity of 10 tons, linking material development with battery-cell production.
The battery has passed third-party testing and is now undergoing further validation for applications including drones, robots, spaceflight simulators and field sensor nodes, according to Chen.
Global Times 
。1月12日，Adobe最近发布了Windows10和其他平台的FlashPlayer更新。令人惊讶的是，这个更新并没有修复AdobeFlashPlayerforWindows10中的任何安全漏洞。Windows 10 KB4480979（Adobe Flash Player）更新引入了一般性的修复和改进。

二 | 在一份文档中，Adobe解释说，此更新的目的是提高性能并消除Flash播放器中的错误。”Adobe发布了适用于Windows、MacOS、Linux和Chrome操作系统的Adobe Flash Player更新。这些更新解决了功能和性能缺陷，但不包括安全修复，”Adobe解释说。根据Microsoft支持文档，所有支持的Windows10版本都有资格获得最新的AdobeFlashPlayer更新。如果您的设备运行在任何受支持的Windows版本上，此更新将通过Windows Update自动安装。要下载和安装Windows 10 KB4480979，可以转到“设置>更新和安全性>Windows更新”，然后单击“检查更新”按钮。如果更新是自动完成的，您可以转到设置>系统>更新和安全，然后打开更新历史记录页面进行验证。Adobe Flash Player即将退役。

三 | Adobe计划在2020年底停止支持Flash播放器，并停止发布该软件。虽然Flash可以继续使用，但它仍然是计算机面临的最大安全风险之一。Adobe解释说，HTML5、WebGL和Web组装等开放标准在过去几年已经成熟。这些技术具有闪存的大部分功能。由于网络不再具有格式影响，Flash播放器可以减少。

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Published on:02:53:45