面向世界科技前沿,面向国家重大需求,面向国民经济主战场,率先实现科学技术跨越发展,率先建成国家创新人才高地,率先建成国家高水平科技智库,率先建设国际一流科研机构。

——中国科学院办院方针

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西安加油!渭南当晚组织45万箱蔬菜相继送往西安******

  12月29日,为适用西安销售市场蔬菜水果合理供货,助推疫情防控,渭南市当晚机构配制、分装45万箱新鲜蔬菜相继送到西安,助推西安群众吃上安心菜、新鲜菜。

  据了解,在充足掌握西安市疫防规定和紧需蔬菜的种类等状况后,渭南市好几个有关部门和好几家新型农业经营主体,融合渭南市本身供应工作能力和产品品种,融洽很多高品质、新鲜蔬菜,优先选择为西安销售市场给予。与此同时,渭南市奋力融洽多方資源,快速机构一手货源,通畅运送方式,从陕南、陕北高原,及其陕西、河南省、甘肃省等地融洽很多新鲜蔬菜。每件15斤、10种蔬菜,总共45万箱,由渭南经开区当晚机构工作人员开展分装,以更快速率送到西安。

  据了解,在充足掌握西安市疫防规定和紧需蔬菜的种类等状况后,渭南市好几个有关部门和好几家新型农业经营主体,融合渭南市本身供应工作能力和产品品种,融洽很多高品质、新鲜蔬菜,优先选择为西安销售市场给予。

  与此同时,渭南市奋力融洽多方資源,快速机构一手货源,通畅运送方式,从陕南、陕北高原,及其陕西、河南省、甘肃省等地融洽很多新鲜蔬菜。每件15斤、10种蔬菜,总共45万箱,由渭南经开区当晚机构工作人员开展分装,以更快速率送到西安。

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  医护人员对施工现场工作员开展Dna取样,保证员工身心健康,蔬菜水果安全性。

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  特警队在现场开展确保。

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  工作员正将调运来的各种蔬菜水果开展卸货分装。

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  工作员正将调运来的各种蔬菜水果开展卸货分装。

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  工作员正将调运来的各种蔬菜水果开展卸货分装。

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  工作员正将调运来的各种蔬菜水果开展卸货分装。

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  工作员正将调运来的各种蔬菜水果开展卸货分装。

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  工作员正将调运来的各种蔬菜水果开展卸货分装。

  同心协力,共抗肺炎疫情!。



来源于:二三里资讯。

编写:二三里。

高科技洗澡:“战斗民族”俄罗斯在尝试利用核能来“烧洗澡水”******

核能可以用于民用吗?没错,核能可以用来“烧洗澡水”。俄罗斯正在试验使用“核温水”,这些水从漂浮的反应堆中泵入西伯利亚偏远城镇人们的家中。

A nuclear-powered shower? Russia tests a climate innovation

The water was hot, steamy and plentiful, and Pavel Rozhkov let it flow over his body, enjoying a shower that is not for the squeamish: On his bare skin, he was feeling the heat produced by an atomic reaction, pumped directly from a nuclear reactor into his home.

水很热,水蒸气弥漫,而且水量很大——帕维尔·罗日科夫(Pavel Rozhkov)让水流过自己的身体,享受着一场“硬核”淋浴。在他裸露的皮肤上,他感觉到了原子反应产生的热量,这些热水是直接从核反应堆抽出,泵入他家里的。

“Personally, I’m not worried,” Rozhkov said.

“我个人并不担心,”罗日科夫说

His shower came courtesy of nuclear residential heating, which remains exceedingly rare and was introduced in the remote Siberian town of Pevek only a year ago. The source is not a typical reactor with huge cooling towers but is the first of a new generation of smaller and potentially more versatile nuclear plants — in this case aboard a barge floating nearby in the Arctic Ocean.

他的淋浴是由住宅用的核供暖系统提供的,这种供暖系统非常罕见,一年前才在偏远的西伯利亚小镇佩维克(Pevek)引入。这不是一个典型的拥有巨大冷却塔的反应堆,而是新一代更小、可能有更多功能的核电站——这次是在附近北冰洋的一艘驳船上。

As countries from across the globe meet in Scotland this week to try to find new ways to mitigate climate change, Russia has embraced nuclear residential heating as one potential solution, while also hoping it can bring a competitive advantage. Companies in the United States, China and France are considering building the type of small reactors connected now to Pevek’s waterworks.

本周,全球各国齐聚苏格兰,试图找到缓解气候变化的新方法。俄罗斯已将核住宅供暖作为一种潜在的解决方案,同时也希望它能带来竞争优势。美国、中国和法国的公司也正在考虑建造与佩维克自来水厂相连的小型反应堆。

“It’s very exciting,” Jacopo Buongiorno, a professor of nuclear science and engineering at Massachusetts Institute of Technology, said in a telephone interview. These small reactors, he said, could also warm greenhouses or provide heat for industrial purposes. In bringing to life the new approach, he said, “the Russians are ahead.”

“这非常令人兴奋,”麻省理工学院(Massachusetts Institute of Technology)核科学与工程教授雅格布·布昂乔诺(Jacopo Buongiorno)在接受电话采访时说。他说,这些小型反应堆还可以为温室供暖或为工业目的提供热量。他说,在实施新策略方面,“俄罗斯人走在了前面。”

Nuclear-powered residential heating is distinct from running space or water heaters with electricity generated from nuclear sources. Direct nuclear heating, tried in small pockets of Russia and Sweden, circulates water between a power plant and homes, transferring heat directly from fissioning uranium atoms to residences.

核动力住宅供暖不同于使用核能发电的空间或热水器。在俄罗斯和瑞典的小范围地区尝试的直接核加热,是在发电厂和家庭之间建立循环水系统,将裂变的铀原子的热量直接传送到家庭中去。

Warming homes with nuclear power also has environmental benefits, advocates of the idea say. Primarily, it avoids wasting the heat that is typically vented as steam through the conical cooling towers of nuclear plants, and instead captures it for use in residential heating, if customers are fine with it.

核能的倡导者说,用核能给家庭供暖也对环境有好处。首先,它避免了热能的浪费,这些热能通常以蒸汽的形式通过核电站的锥形冷却塔排出,如果客户不介意的话,可以收集这些热能用于住宅供暖。

Still, some experts are concerned about the potential risks, pointing to the many spills and accidents on Soviet and Russian submarines and icebreakers that used similar small reactors.

尽管如此,一些专家还是对潜在的风险感到担忧。他们指出,使用类似小型反应堆的苏联和俄罗斯潜艇和破冰船上发生了许多核泄漏和事故。

“It is nuclear technology, and the starting point needs to be that it is dangerous,” said Andrei Zolotkov, a researcher with Bellona, a Norwegian environmental group. “That is the only way to think about it.”

“这是核技术,前提条件就是它是危险的,”挪威环保组织Bellona的研究员安德烈·佐洛特科夫(Andrei Zolotkov)说,“我们只能这么想。”

Rozhkov’s wife, Natalia Rozhkova, was initially skeptical. They can see the new nuclear facility, which is about a mile away, from their kitchen window. She said she “worried for the first two days” after their apartment was connected to one of the cooling loops of the reactors. But the feeling passed.

罗日科夫的妻子娜塔莉亚·罗日科娃(Natalia Rozhkova)起初持怀疑态度。他们可以从厨房的窗户看到大约一英里外的新核设施。她说,在他们的公寓连接到反应堆的一个冷却回路后,她“头两天都很担心”。但这种感觉已经过去了。

“Whatever is new is scary,” Rozhkova said. Still, somebody has to be first, she suggested, adding, “We were the closest, so they hooked us up first.”

“任何新的东西都是可怕的,”罗日科娃说。不过,总得有人先来,她建议道,并补充说,“我们是离得最近的,所以就先试用了。”

The experiment in Siberia, Buongiorno said, could play a vital role in convincing countries that using nuclear power to limit climate change will require using it for more than just generating electricity.

布昂乔诺说,在西伯利亚进行的实验,可能有助于说服各国使用核能来应对气候变化,让他们相信,使用核能不仅仅是为了发电。

“Decarbonizing the electrical grid will only get you one-quarter of the way,” he said. “The rest comes from all these other things.”

他说:“电网脱碳只能实现四分之一的目标。其余的则来自所有这些其他的东西。“

Yes, but a nuclear shower? Buongiorno said he would take one — but conceded that “obviously this is not going to work if people don’t feel comfortable with the technology.”

那核热淋浴系统呢?布昂乔诺(Buongiorno)说他会装上一个,但他也承认“如果人们对这项技术感到不舒服,这显然是行不通的。”

Now, two other sites in Russia besides Pevek use nuclear residential heating; however, in those cases, it is a byproduct of large electrical plants.

现在,除了佩维克,俄罗斯还有两个地方使用核住宅供暖。然而,在这些情况下,它都是大型发电厂的副产品。

Soon, in Pevek, the town’s community steam bath, or banya, will also be nuclear-powered. The Russian state nuclear company, Rosatom, connected the reactors to the heating pipes in one neighborhood in June 2020. It is now expanding the hot water service to the whole town, which has a population of about 4,500.

很快,在佩维克,小镇社区的蒸汽浴室也将使用核能。2020年6月,俄罗斯国家核能公司(Rosatom)将一个社区的反应堆与供暖管道连接起来。目前,该公司正在将热水服务扩展到人口约4500人的整个城镇。

The plant’s two cores are cooled by a series of water loops. In each reactor, the first loop is contaminated with radioactive particles. But this water never leaves the plant. Through heat exchangers, it transfers heat — but not contaminated water — to other loops.

核电站的两个核心由一系列的水循环来冷却。在每个反应堆中,第一个回路都受到了放射性粒子的污染。但这些水从未离开过工厂。通过热交换器,它将热量(而不是被污染的水)转移到其他回路。

In Pevek, one of these loops is the system of pipes that leave the plant, branch out and supply hot water to homes.

在佩维克,其中一个循环是管道系统,它离开工厂,分支并向家庭供应热水。

The company promotes a number of safety features. The plant can withstand a crash by a small airplane. The vessel that holds it doubles as a containment structure. And the water circulating through buildings is at a higher pressure than the cooling loop from which it derives heat within the plant, in theory preventing a radiation leak from spreading into town.

该公司推出了一些安全功能,比如这家工厂能承受小飞机的撞击。而且,在建筑物中循环的水柱所处的压力要高于冷却回路的压力,而冷却回路是从核电站中获得热量的,这在理论上可以防止辐射泄漏扩散到城镇。

Irina K. Buriyeva, a librarian, said she appreciated the plentiful heat and electricity. Of the risks of a radiation leak or explosion, she said, “We try not to think about it, honestly.”

图书管理员伊琳娜·布里耶娃(Irina K. Buriyeva)说,她很喜欢这里充足的暖气和电力。对于辐射泄漏或爆炸的风险,她说,“老实说,我们只能尽量不去想它。”

Kirill Toropov, deputy director of the floating nuclear plant in Pevek, said its benefits were already visible locally, citing snow that is less sullied with coal soot. “We need to note this positive ecological moment,” he said.

佩维克漂浮核电站的副主任基里尔·托罗波夫(Kirill Toropov)说,它的好处在当地已经显而易见,他举例说,积雪受到煤烟污染的程度降低了。“我们需要注意这个积极的生态变化,”他说。

Rozhkov, 41, an accountant, who has been showering and bathing three children in nuclear-warmed water for a year now, said Russia’s use of small reactors in icebreakers gave him confidence in the technology.

现年41岁的会计师罗日科夫(Rozhkov)已经用核温水给三个孩子洗澡一年了。他说,俄罗斯在破冰船上使用小型反应堆,让他对这项技术有了信心。

“We aren’t worried,” he said, “that the details are still being worked out.”

“我们并不担心,”他说,“细节仍在优化中。”

His wife said they were “believers,” and added, “There are things we cannot control. I can only pray for our safety, for the safety of our town.”

罗日科夫的妻子说,他们是“拥护者”,并补充说,“有些事情我们无法控制。我只能为我们的安全祈祷,为我们小镇的安全祈祷。”

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Facebook的「多事之秋」和有用的「国产星座」|极客一周******摘要

Facebook 遭遇「世纪宕机」,前产品经理爆料公司「四宗罪」;美团因「二选一」收到 34.42 亿元反垄断处罚;「吉林一号」成为我国规模最大的商用遥感卫星星座。

Facebook 的多事之秋

这个秋天,对 Facebook 非常不友好了。

本周,曾经任职 Facebook 的产品经理 Frances Haugen 继向华尔街日报曝光大量内部资料后,在接受 CBS 采访节目中,再次将脸书对于公共安全、青少年心理影响等相关敏感问题进行了「补刀」。

在采访中,Haugen 认为 Facebook 比其他社交网络更差劲,「Facebook 一次又一次地表明,他们会选择置利益于安全之上。」

而根据 Haugen 的爆料,Facebook 暴露的最严重的问题如下:

1 差别待遇,对名人/特殊人物发布的内容特殊管理,免于审核;

2 因为剑桥分析丑闻,Facebook 向 FTC 支付 50 亿美元和解金额过高,被 Facebook 自己投资人起诉;

3 Facebook 内部研究显示平台对青少年心理健康有害,但结果并未向外界公开;

4 利益高于公众安全,年初国会山骚乱开启「假消息」过滤系统,选举结束后就关闭了;

Haugen 在其后参议院商务委员会听证会上表示,除非外部监管机构介入,Facebook 不可能从内部发生改变。

         网友制作模仿《鱿鱼游戏》的梗图|Twitter

屋漏偏逢连夜雨,就在 Haugen 通过传统媒体大抖 Facebook 黑料的时候,Facebook 自己以及旗下的 whatsApp、Instgram、VR 平台 Oculus 等应用发生了长达 7 小时的宕机。不少欧美网友打开手机发现不能刷 Facebook,不能用 whatsApp 还以为是互联网彻底瘫痪了。

如何估计这次「世纪宕机」带来的影响,一个有效的方式大概是看 Facebook 的友商们获得了多大好处:

1 Twitter 流量增加了 72%;

2 加密通信应用 Telegram 一天增加 7000 万用户;

3 新闻网站页面访问量相比前一周增加了 38%;

同时比较尴尬的是,几周前 Facebook 刚刚公布了 CTO 更换计划,将 VR/AR 主管 Andrew Bosworth 推上高位,换下老成持重的 Mike Schroepfer。没成想还没到实际交接,就发生了这么个事儿。

马克·扎克伯格随后发布内部信,信中他认为报道和证词「无法反映出自己了解的 Facebook 这家公司」,而看到这样的误解,他「很难过」。对于推送惹人愤怒内容来提高流量,扎克伯格反问,作为一家靠广告赚钱的公司,怎么会有广告商希望自己的广告出现在愤怒内容旁边。

对于影响美国「两极化」的指控,扎克伯格表示,其他国家的人也大量使用社交媒体,为什么只有美国的两极化加剧了?

最后,小扎把锅一把推到了监管头上:青少年使用网络服务年龄、隐私保护等问题,不是一家私人公司能决定的,应该是监管来制定法规。

虽然扎克伯格的反驳逻辑严谨,但是不妨碍现在美国政界两党一致将矛头指向互联网巨头,尤其在打击 Facebook 上的问题上达成了一致。虽然 Facebook 的反垄断案一审被驳回,但公司接下来要面对的监管压力,只大不小。

在转型成元宇宙公司之前,Facebook 可能要先过反垄断这个「巨坎」。

美团「反垄断」结果出炉

经过半年调查,反垄断的处罚,落在了美团头上。

10 月 8 日,市场监管总局发布《行政处罚决定书》(下称决定书)根据《反垄断法》第四十七条、第四十九条规定,综合考虑违法行为的性质、程度和持续时间等因素,市场监管总局依法对美团作出行政处罚决定,责令美团停止违法行为,全额退还独家合作保证金 12.89 亿元,并处以其 2020 年中国境内销售额 1147.48 亿元 3% 的罚款,计 34.42 亿元。

美团对此回应,「我们诚恳接受,坚决落实,按照《行政处罚决定书》和《行政指导书》全面深入自查整改,杜绝『二选一』。美团将以此为戒,依法合规经营,自觉维护公平竞争秩序,切实履行社会责任,更好地服从和服务于经济社会发展大局,努力为国家经济高质量发展多做贡献。」

同样是反垄断,对比美团和此前阿里的「处罚决定」,很直观的感到监管更加细致了。例如,《决定书》花费不少篇幅来解释,为什么要将美团的反垄断市场定义为网络餐饮外卖平台

市场。

其中,监管认为从消费者需求、餐饮业者角度分析,美团代表的网络餐饮外卖平台和线下餐饮不属于同一相关商品市场,没有严格的替代关系。

这个定性的作用是将外卖平台和线下餐饮分割开来,不然以美团的体量和线下餐饮市场相比,实在是九牛一毛,说不上垄断。另一个隐含的含义则是,外卖平台和线下餐饮没有竞争关系,不是后者的「掘墓人」,相反,外卖平台还能为线下餐饮提供更多潜在客户和生意。

定性很重要。

另外,对于美团的「二选一」行为披露十分详细,几乎是平台垄断的教科书了,有志做平台的创业者甚至能直接借鉴。

例如,平台如何灵活使用流量加权、平台补贴、优先配送、扩大配送范围、降低起送价格来扶持「独家商家」,打压非独家商家;对内,如何从组织层面将「二选一」纳入一线员工考核,以及如何培训员工话术,扩大独家商家签约率等。

从这点来看,美团的《决定书》暴露出的内容要比当时阿里被罚时候多得多。当然,这可能也和美团主动提供很多材料有关。

从年营业额的 3% 罚款力度来看,其实是要小于此前阿里的 4% 的力度的,相比于之前传说的 10 亿美元也有「折扣」,对于美团造成的影响其实有限。

不过,此次反垄断「落槌」可能还算不上美团利空出尽,因为几百万外卖员「困在系统中」的问题其实还没有完全解决,依然美团要面对的另一个巨大挑战。

同样是本周,有网友发现作为王兴「后花园」的饭否上,王兴删除了自己过去十几年的推文。

臻驱科技获 3 亿元融资,加码研发碳化硅电驱方案

国产功率半导体模块及电驱动系统解决方案公司臻驱科技完成 3 亿元的 B2 轮融资。

臻驱科技董事长兼 CEO 沈捷博士介绍,本轮融资将主要用于多个量产项目的运营资金保障、产线扩容,以及下一代碳化硅电驱动方案和功率半导体模块的研发和市场推广。

臻驱科技成立于 2017 年,主要研发、生产和销售新能源汽车动力总成和高性能国产功率半导体模块。据官方介绍,目前,臻驱科技产品线覆盖从功率半导体模块、电机控制器到动力总成的新能源汽车全产业链产品,并稳定出货德国和中国。

新能源汽车市场正快速增长,作为新能源车的核心零部件,电驱动系统也看到可观的创新和增长机会。纯电动汽车普遍面临补能效率压力,业界普遍认为解决方案之一是高压快充路线,但需要新一代功率器件的配套支持,这就对碳化硅半导体模块也提出了明确需求。

臻驱科技方面表示,凭借着正向设计、测试和供应链整合能力,公司产品性能可以对标国际一线品牌,多款新能源汽车高性能电机控制器及自研功率模块,已打入海内外多家一线主机厂商及零部件供应商。(来源:36Kr)

「吉林一号」成为我国规模最大的商用遥感卫星星座

日前,「吉林一号」高分 02D 卫星成功发射。至此,「吉林一号」卫星星座在太空上共有 30 颗卫星在轨运行,组成了我国规模最大的商用遥感卫星「天团」。

「吉林一号」卫星星座覆盖面积累计达 1.33 亿平方公里,具备全球一张图一年更新 1 次、全国一张图一年更新 3 次的能力。

依托「吉林一号」遥感数据,长光卫星利用人工智能算法,实现了全国地表分类的精准化、自动化更新,可以在线完成建筑、道路、水体、林木以及不同类型农作物的自动识别,识别精度超过 95%。(来源:新华社)

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EU agrees Russia sanctions package, warns of further action******

AFP

European Commission President Ursula von der Leyen delivers a statement following the conclusion of an EU Foreign Ministers' meeting on the crisis in Ukraine, in Brussels, on February 22, 2022.

The European Union is ready to take further action against Russia if it continues to escalate the crisis, European Commission President Ursula von der Leyen warned on Tuesday.

In a statement, von der Leyen said EU member states had given their political consent to a new package of sanctions against Russia following its recognition of the independence of the Ukrainian regions of Donetsk and Luhansk.

The package contains a number of "calibrated measures" targeting banks that finance the Russian military apparatus and contribute to the destabilization of Ukraine.

It also bans trade between the two breakaway regions and the EU, as it did with Crimea in 2014, and limits the Russian government's ability to raise capital on the EU's financial markets.

Russian President Vladimir Putin on Monday evening signed decrees recognizing the independence of two self-proclaimed regions in eastern Ukraine's Donbass as "the Lugansk People's Republic" and "the Donetsk People's Republic."

Russia has done everything to preserve the territorial integrity of Ukraine by fighting for the implementation of 2015 Minsk agreement, but all the efforts ended up in vain, Putin said on Monday.

The security crisis occurred due to NATO's eastward expansion, which has led to the loss of mutual trust with Russia, he noted.

According to Josep Borrell, EU's High Representative for Foreign Affairs and Security Policy, the package comprises sanctions against 351 members of the Russian State Duma (lower house of the country's Federal Assembly) who voted to recognize the two regions.

The EU will also "target 27 individuals and entities who are playing a role in undermining or threatening Ukraine's territorial integrity, sovereignty and independence," he said.

Furthermore, the sanctions aim to target the Russian state's ability to access the EU's capital and financial markets and services.

"If Russia continues to escalate this crisis that it has created, we are ready to take further action in response," von der Leyen said.

On the controversial Russia-Germany Nord Stream 2 gas pipeline, von der Leyen said she believed that the German government was "absolutely right" to stop the project, which must be assessed in light of the security of energy supply for all of Europe.

"This crisis shows that Europe is still too dependent on Russian gas. We have to diversify our suppliers and massively invest in renewables. This is a strategic investment in our energy independence," she said.

The conflict in eastern Ukraine began in April 2014 with fightings between the Ukrainian government troops and local armed groups who seized several towns.

With the mediation of the global community, the two sides in Belarus' capital of Minsk reached ceasefire agreements in September 2014 and February 2015 respectively.

Russia has been seeking NATO's guarantee to halt eastward expansion. However, US President Joe Biden's administration took a hard line against Russia, supporting Ukraine's efforts to join the US-led military alliance and increasing its military assistance to Ukraine, which has re-escalated tensions in the region.

The situation in eastern Ukraine has been getting worse since February 17, as the Ukrainian government and local armed groups blamed each other for launching aggressive bombards.

这才是适合普通人的气质穿搭 简单又好看

1.93年北京一少妇勒死情夫被判死刑, 临刑前大呼冤枉

2.我国国防法修订 明年1月1日起施行

3.政府工作报告中,这些内容与国防和军队建设息息相关

4.综合消息:亚欧多国疫情严峻 俄外长强调公平分配疫苗

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