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'Super fog' causes deadly multi-car pileup on Louisiana highway: Police_我的网站

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一 | 8月25日消息，据报道，三星电子与SK海力士正同步加速在华NAND闪存生产布局，计划在明年前陆续完成新一轮设备投资。

二 | 两家韩国存储巨头同时将中国产线定位为高端NAND量产的重要支柱。值得注意的是，三星电子今年5月刚刚宣布退出中国电视和家电业务，但明确表态半导体业务将继续运营，位于西安和苏州的工厂不会中断。SK海力士停工约四年的大连NAND工厂也已正式重启建设。 A "super fog" in Louisiana has caused a multi-car pileup on Interstate 55 near New Orleans, Louisiana, after severely lowering visibility, according to police.The crash, involving dozens of cars, occurred on Monday morning due to heavy fog conditions, according to Louisiana State Police. A long stretch of Interstate 55, a 24-mile-long highway over Lake Pontchartrain near New Orleans, is expected to be closed "for the foreseeable future," police said.Interstate 10 and Interstate 310 were also closed as a result of the crash, police said. Louisiana Gov. John Bel Edwards confirmed the accident in a statement Monday that there were fatalities in the crash, but did not say how many people were killed or injured.For hours after the crash, emergency crews worked to clear debris from both northbound and southbound lanes, according to state police.The super fog was caused by smoke from marsh fires burning in the region combined with dense fog developing in the area early Monday morning bringing extremely low visibility. In some spots, visibility was near zero, creating dangerous driving conditions.Super fogs typically form when condensed water vapor mixes with the smoke and moisture released from damp organic material smoldering from a nearby fire, such as brush, leaves and trees, according to the National Weather Service. Visibility can be lowered to less than 10 feet as a result, according to the NWS.This has been occurring in the region over the past several mornings, with the location of the densest fog and most dangerous conditions varying day to day, forecasts show.Super fogs can be especially dangerous when they develop near and over highways. The localized nature of the weather phenomenon means that visibility conditions can worsen rapidly within a very short distance, which can lead to a hazardous combination of sudden low to near-zero visibility and vehicles traveling at a high speed on a highway.The very limited visibility then hinders a driver's ability to react to changing conditions on a roadway.The National Weather Service issued a dense fog advisory for much of southeastern Louisiana on Monday morning, including from Baton Rouge to New Orleans.Over the past several days, the National Weather Service has been warning of the threat of dense fog during the early mornings in the region that would be worsened in some areas by nearby marsh fires. State police advised drivers to use their low-beam headlights if they can't see at least 500 feet in front of them.The fog dissipated by mid Monday morning, and all fog alerts have since been canceled.While areas of smoke will continue to be possible in the area as various marsh fires continue to burn, fog is not forecast to be a major issue Monday night, as weather conditions will be less favorable for fog development.Morning fog is not uncommon this time of the year for the region, but more than 86% of the state is currently battling extreme drought conditions, which is elevating fire danger. This could mean more instances of super fog in the coming days and weeks as cooler temperatures settle in, but the drought and wildfire risk persist.In addition, devastating drought and wildfire conditions continue to impact Louisiana. More than 60% of the state is now categorized at exceptional drought, the highest category of concern, according to the U.S. Drought Monitor. Just three months ago, 0% of the state was listed under exceptional drought."The combination of wildfire smoke and dense fog is dangerous, and I want to encourage all Louisianans in affected areas to take extreme caution when traveling," Edwards said in a statement.State troopers are working to notify families and investigate the exact cause of the crash, according to state police.It is unclear how many fatalities and injuries occurred as a result of the crash. The St. John the Baptist Parish Sheriff's Office directed media requests to Louisiana State Police.Additional information was not immediately available. Louisiana State Police did not immediately reply to ABC News' request for comment.。三星电子已将西安工厂的第九代NAND（V9）转换投资计划具体化，并确定追加补充投资方案。

三 | V9 NAND采用280层堆叠架构，是目前最先进的NAND产品之一，预计该产线月产能将达4万至5万片晶圆。 为进一步巩固稳定量产能力，三星确定追加引入刻蚀工艺设备。相关设备采购订单预计于今年年底前落实，补充投资将于明年下半年启动。 SK海力士已于今年第三季度起在大连第二工厂推进NAND产品升级所需的设备投资。目标产能规模约为月产3万片晶圆，相关投资将持续推进至明年。大连工厂此轮投资标志着SK海力士在华NAND产能建设进入实质性加速阶段，此次重启扩产整体产能预计将扩大约50%。两家韩国存储巨头接连扩大中国产线投资，显示中国工厂在其高阶NAND产品布局中的重要性持续提升，此轮扩产有望进一步提升其高端产品供应能力。