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時間:2022-08-15 來源:本站 點擊:258次
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未来三天陕西部分地方多雨雪******

  19日陕西以阴天为主,全省最低气温出现在府谷站(-3.4℃),西安最低气温8.8℃,最高气温14.5℃。

  受短波槽东移影响,未来三天我省部分地方多雨雪天气。预计20日:陕北多云间阴天,关中、陕南阴天有小雨,陕南东部部分地方有中到大雨。21日:陕北多云间阴天,关中、陕南阴天,关中有小雨,南部部分地方有中雨;陕南小到中雨,南部部分地方有大雨。秦岭山区有中到大雪,巴山东段有小到中雪。22日:全省阴天大部有小雨,秦岭山区有小到中雪,巴山东段有小雪。

  提醒:注意防范低温雨雪天气对疫情防控、公众健康、交通出行的不利影响。公众注意出行安全适时增添衣物,谨防流感、呼吸道及心脑血管等疾病发生风险。华商报记者 毛蜜娜 通讯员 何柯俊

  西安三日天气

  今天 阵雨 8~14℃

  明天 阴有小到中雨 5~9℃

  后天 小雨转多云 5~13℃



来源:华商网

编辑:王蜀周秦

西安市2地调整为低风险地区 目前共有2个中风险地区******

截至2022年3月23日,新城区中山门街道东新社区金色时代公寓、碑林区长安路街道朱北社区大学东路二道巷近14天内无新增本地病例和聚集性疫情。根据国务院联防联控机制关于分区分级防控工作要求和专家综合评估,经西安市新冠肺炎疫情防控指挥部同意,自2022年3月23日24时起,将新城区中山门街道东新社区金色时代公寓、碑林区长安路街道朱北社区大学东路二道巷由中风险地区调整为低风险地区,其他地区风险等级不变。

调整后,西安市共有中风险地区2个。全市其他地区均为低风险地区。

现有的中风险地区2个为:

1.未央区未央宫街道宏途星城小区

2.经开区凤城一路利君V时代小区A、B座



来源:西安发布

编辑:田媛

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First known US Omicron case found in fully vaccinated overseas traveler******

The United States on Wednesdayidentified its first known COVID case caused by the Omicronvariant, discovered in a fully vaccinated patient who traveledto South Africa, as scientists continue to study the risks thenew version could pose.。

Public health officials said the infected person, who hadmild and improving symptoms, returned to the United States fromSouth Africa on November 22 and tested positive seven days later.。

That patient was fully vaccinated but did not have a boostershot, according to Dr. Anthony Fauci, the top US infectiousdisease official, who briefed reporters at the White House.。

Reuters。

Dr. Anthony Fauci speaks about the Omicron coronavirus variant case, which was detected in California, during a press briefing at the White House in Washington, US, on December 1, 2021.。

The person is in self-quarantine and all of the patient'sclose contacts have tested negative, he said.。

Key questions remain about the new variant, which mutated inways that health experts think could improve its ability to bothspread and evade some of the defenses provided by vaccines. Workis underway to update those vaccines, if necessary.。

Omicron has been found in two dozen countries and territories, includingseveral in Europe plus Canada, Australia, Japan, China's Hong Kong andIsrael.。

The United States has not yet detected communitytransmission of Omicron. Across much of the country, COVIDtransmission remains high but new cases have held fairly steadyover the last two weeks, according to a Reuters tally.Three-quarters of all COVID samples in South Africa are now Omicron.。

"The critical thing is, over the next week or so, will wesee any community transmission from that case," said AndyPekosz, virologist at the Johns Hopkins Bloomberg School ofPublic Health. "That's a critical thing that we want to keep aneye on."

Pekosz said the variant could make the relatively new set ofantiviral pills from Merck and Pfizer moreimportant by helping to reduce the severity of infections.。

Fauci said it could take two weeks or more to gain insightinto how easily the variant spreads from person to person, howsevere is the disease it causes and whether it can bypass theprotections provided by vaccines currently available.。

The Biden administration has asked fully vaccinated peopleto seek booster shots after their initial doses. Sixty percentof Americans are fully vaccinated andabout a fifth of those people took boosters, according to theUS Centers for Disease Control and Prevention.。

For days, US health officials have said the new variant– first detected in southern Africa and announced on November 25 – was likely already in the United States as dozens of othercountries also detected its presence.。

AFP。

Travelers wear protective face masks at Denver International Airport on November 30, 2021 in Denver, Colorado as concern grows worldwide over the Omicron coronavirus variant.。

"This new variant is a cause for concern but not a cause forpanic," Biden said on Wednesday before the Omicron case wasannounced. A spokesperson, Jen Psaki, said he the president hadbeen briefed by his team on the first known US case.。

Benchmark US stock indexes turned negative on the news.The S&P 500 fell by more than 1 percent, extending to nearly 4 percentits loss in price terms over the past week. The World HealthOrganization named the variant as one of concern on Friday.。

The United States has barred nearly all foreigners who havebeen in one of eight southern African countries. On Tuesday, theCDC directed airlines to disclose names and other information of passengers who have been to thosecountries.。

支持4K 120p?索尼将发布新M4/3感光元件******

    不少朋友都认为M4/3系统的相机其实还不错,但主要是一直受制于感光元件没有太多的更新,总难让用户提起兴趣更新。不过似乎很快M4/3相机就会有更强的机型推出,一直提供M4/3尺寸感光元件的索尼近期就更新了旗下的产品,最高可支持4K 120p的视频。 

    据索尼的说明书中陈述,这颗型号为IMX472-AAJK的感光元件为2146万像素,内置12bit A/D转换器。即使以2089万像素,也可以以120fps的速度输出,这主要是加入了堆栈式设计,以提升读出的速度。换句话说此感光元件即使以5.7K解像度输出也可以拍摄最高120p的视频。 

    上半年松下已经公布本年年尾将会推出全新的M4/3旗舰视频微单,并己表明可以拍摄4K 120p申沛,这似乎跟这个新感光元件吻合,但大家也需留意有关GH6的另一点就是可以拍摄5.7K 60p规格的视频,那么就肯定不会采用只有约2000万像素老感光元件了。不过有传奥林巴斯方面也很快会有新机公布,只是不知道是否也将会采用这颗感光元件了,相信不少喜欢M4/3系统相机的朋友也会十分期待。 


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