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——中国科学院办院方针

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時間:2022-08-15 來源:本站 點擊:258次
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陕西这些景区有优惠!医护人员免费游、穿汉服免费游******

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  华清宫:医护人员免费游园

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  秦岭洞天福地:商洛人10元游景区

  秦岭洞天福地景区位于商洛市柞水县,是以喀斯特地质科考、溶洞群地质景观、天然山岳河流等自然奇观、地方民俗风情体验为特色,集旅游观光与乡村休闲度假于一体的综合性景区。这里分布大小溶洞118个,是为“洞天”,小镇名为“石瓮”,为聚气纳福之地,是为“福地”,故此称为“洞天福地”。

  优惠政策:即日起至4月2日,商洛籍居民凭本人身份证即可享受秦岭洞天福地景区首道大门票10元特价。

  韩城古城状元府博物馆:穿汉服免费游

  在韩城古城明清一条街的正中心,通往“状元府”的巷道里,一幅幅生动活泼、趣味盎然的墙绘作品成为古城一道独特的风景线。

  在文化艺术街区深处,私藏有一处大的宅院。里面旧时的主人就是街区这里所说的“状元”王杰,“状元府”是王杰在韩城的宅院。韩城古城状元府博物馆清雅宁静,古色古香,布局为一楼高瞻,两廊回环,三厅一殿,八院相连。馆藏名人字画三百余幅,石雕、木刻千余件。

  整个博物馆山石草本布置巧妙,一院一景各具特色,是一座“园林式”博物馆。来这里,可以领略到韩城传统明清民居建筑艺术,身临其境的聆听清代状元王杰的故事。

  优惠政策:即日起,凡穿汉服畅游状元府博物馆的游客,可享受门票免费政策。 华商报记者 李怡


来源:华商网-华商报

编辑:王蜀周秦

供暖多日还需要开空调 西安汉城壹号小区业主喊“冷”******

  宣布供暖早已一周了,可还有一些群众体现家中很冷,只能依靠中央空调供暖,期待热力公司可以尽早采取一定的有效措施,目的性地解决困难人,让大伙儿暖起來。

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  孙先生住在德森南街海纳观景园小区4号楼14楼,他说道小区是西联热力公司接管客户,到现在家中没来暖气片,管路里就沒有流水,摸楼底下的管井很热,但就沒有传入楼顶来,问热力公司的设备维修工,说成工作压力不足,开水就上不到,热力公司的电話也打堵塞。“供暖十年了,之前都还能够,有22、23度。”孙先生说,自身家是高层,也是南房型,太阳光比较好,因此太阳光好的日子很有可能室温也是有18度,但这也是太阳光的供暖溫度,并不是靠家中的供暖管道。

  昆明市路昆明市花苑小区的师老先生体现说,小区是太阳热力公司供暖,家中仅有16度,夜里需盖两张床褥子。西稍门开元商住楼小区居民体现说,太阳热力供暖,如今暖气片依然是凉的,闸阀或是关的,电話也打堵塞。也有人体现大庆路863号甲楼宅院小区一直沒有供暖,小区是太阳热力供暖。

  西安市热力集团公司、西联热力公司和太阳热力公司均归属于西安市城投集团集团旗下,11月15日,城投集团举办气路供热紧急稳价总指挥部举行第二次大会,会议要求,热力公司要敢于承担责任,不讲客观因素,想方设法让群众家中尽早热起來。对供热不符合标准的小区,供热公司主要领导要亲自去当场,保证对状况了然于胸,并每日向总指挥部汇报。有关领导干部规定,气路供热关乎老百姓冷热,要按上级领导“让大伙儿房间热、内心暖”、“在人民群众溫暖越冬难题上不摆艰难、不讲条件”的重要批示,将工作中狠抓搞好,将人民群众满不满意做为工作中干得怎么样的尺标,精心组织、科学研究生产调度。气路供热是一项工程项目,尤其是2021年遭遇着气动阀门焦虑不安、暴雪天气的挑戰,要综合性分析研判,统筹兼顾贯彻落实,保证政令畅通。尤其是对于管道网尾端供暖实际效果不符合标准的小区,热力集团公司、热电公司领导班子要担起义务,每日督查、当场贯彻落实,逐一消号,尽早处理。

  华商报新闻记者 李琳。



来源于:华商网-华商报。

编写:报刊社方方正正。

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双语热点:詹姆斯·韦伯太空望远镜已到达最终观测位置******

在发射升空三十天后,詹姆斯·韦伯望远镜(James Webb Telescope)于北美时间1月24日抵达距离地球150万公里的目的地——第二拉格朗日点。该点始终与地球和太阳保持在几乎同一直线上,使得仪器运转保持相对稳定。现在,地球上的控制人员将会在接下来的几个月对望远镜进行调节,为科学研究做准备。

James Webb telescope parked in observing position

Thirty days after it was launched, the James Webb telescope has arrived at the position in space where it will observe the Universe.

在发射升空三十天后,詹姆斯·韦伯望远镜(James Webb Telescope)已经在太空中抵达其将要观测宇宙的位置。

The Lagrange Point 2, as it's known, is a million miles (1.5 million km) from Earth on its nightside.

这个被称为拉格朗日L2点(Lagrange Point 2)的位置,在地球阴面之外100万英里(150万公里)处。

Webb was finally nudged into an orbit around this location thanks to a short, five-minute thruster burn.

韦伯望远镜是依赖一段5分钟的短时间推进器燃烧,最终被推进这一轨道。

Controllers back on Earth will now spend the coming months tuning the telescope to get it ready for science.

现在,地球上的控制人员将会在接下来的几个月对望远镜进行调节,为科学研究做准备。

Key tasks include switching on the observatory's four instruments, and also focusing its mirrors - in particular, its 6.5m-wide segmented primary reflector.

核心的任务包括打开这台观测望远镜的四个设备,以及调节各面镜的焦点——特别是由多个部分组成的6.5米宽主镜。

"There's a pretty intensive effort to take all of those 18 segments from their current state and get them to act as one big mirror, and also to get the secondary mirror into its optimised condition," explained Charlie Atkinson, the chief engineer on Webb at Northrop Grumman, the American aerospace company that co-led the telescope's development with the US space agency (Nasa).

“将全部18个部分从现在的状态调节成一面大主镜,还要将副镜调到最佳状态,当中有颇为繁重的工作要做,”诺斯洛普·格鲁曼公司(Northrop Grumman)的韦伯望远镜首席工程师查理·阿特金森(Charlie Atkinson)解释说。这家美国航天企业与美国太空总署(NASA)联合主导这个望远镜的研发。

Webb, billed as the successor to the famous Hubble Space Telescope, was launched on 25 December by an Ariane-5 rocket from French Guiana.

韦伯被标榜为著名的哈勃太空望远镜(Hubble Space Telescope)继任者。它在12月25日在法属圭亚那用一枚亚利安5号运载火箭发射升空。

Its overarching goals are to take pictures of the very first stars to shine in the Universe and to probe far-off planets to see if they might be habitable.

它的总体目标是要拍摄宇宙中第一批发光星体的照片,并观测远方星球,看它们是否适合居住。

Europe's Ariane-5 gave the new observatory a near-perfect trajectory and velocity to get it out to L2. Even so, two course correction burns were necessary, with the third on Monday tipping Webb into its planned parking position.

欧洲的亚利安5号火箭以近乎完美的轨迹和速度将这个新的观测望远镜送入L2。即使如此,还是必须进行两个阶段的修正,周一(1月24日)的第三阶段将韦伯推进了计划中的停泊位置。

The Lagrange Point 2 is one of five gravitational "sweet-spots" around the Sun and Earth where satellites can hold their position with few orbital adjustments, thus conserving fuel.

拉格朗日L2点是太阳和地球附近引力场中的五个“理想位置”之一。在这些位置上,卫星能够用很少的轨道调节来保持位置,从而节省燃料。

The other advantage is that Webb will not experience at L2 the big swings in temperature and light endured by space telescopes positioned much closer to Earth.

另一个好处是,韦伯望远镜在L2点上不会像靠近地球位置的太空望远镜那样,经历温度和光线的大幅摇摆。

This is vital for the mission. It's designed to view the cosmos in infrared light and must maintain therefore constant super-cold conditions for its hardware.

这对于这项任务来说至关重要。它的设计是旨在红外光中观察宇宙体系,所以硬件必须保持一贯的超低温状态。

Infrared light has waves that are just longer than those of visible light. "Seeing" in the infrared will allow the telescope to, for example, look through dust to image stars that would otherwise be obscured.

红外光当中有一些波长仅比可视光长一点的光波。举个例子,在红外线中“看得见”,就能让望远镜穿过尘埃,看到一些在一般情况下成像模糊的星体。

Webb will now circle L2, keeping the Earth and the Sun in a near-straight line.

韦伯现在将围绕L2点转动,与地球和太阳保持着几乎成一直线的方位。

"L2 is pseudo-stable," said Jean-Paul Pinaud, who leads the Northrop engineers that keep Webb on track.

“L2点是假稳定状态,”负责领导诺斯洛普·格鲁曼公司的工程师确保韦伯保持轨道的让-保罗·皮诺(Jean-Paul Pinaud)说。

"The flight operations team is preparing routine station-keeping burns. They'll be doing those every 20 days or so with the trajectory calculations provided by our flight dynamics team. We'll set them up in a similar way, and then fire the thruster. But the burns will be quite small."

“飞行操作团队正在准备用常规的燃烧动力保持位置。他们会因应我们的飞行动力学团队所提供的轨道计算资料,每隔20天左右做一次。我们会以相似的方式设置,然后点燃推进器。不过燃烧的强度会比较小。”

Hidden behind a big sunshield, Webb's optics and instruments will soon cool to about -230C (some sections of the telescope are already there). When that happens, controllers will switch on Webb's Near Infrared Camera (NIRCam) to take a picture of a test star to begin the process of aligning the big mirror.

在一块巨大防光罩后面的韦伯望远镜光学仪器和设备,不久就会冷却到大约-230摄氏度(望远镜的其中一些部分已经到达这个温度)。到那个时候,控制人员就会打开韦伯望远镜的近红外摄像机(NIRCam),拍摄一张测试性的星体图片,这是调节主镜程序的开端。

"We know when we first focus on a star in space, we'll actually see 18 different spots of light because the 18 individual mirror segments won't be aligned," said Nasa instrument systems engineer Begoña Vila.

“在我们第一次聚焦于太空中的一颗星的时候,我们会看到18个不同的光点,因为18块单独的镜元件并没有在同一个平面上,”太空总署的设备系统工程师贝戈尼娅·维拉(Begoña Vila)说。

"But we'll adjust the mirrors to bring all the spots together to make a single star that's not aberrated and good for normal operations. It's a long process. It can take up to three months during commissioning, and we are ready to do that.”

“但我们会调节镜元件,将所有的点聚拢到一起,形成一个单独星体的无异常影像,令正常任务得以进行。这是一个较长的过程。它可能会用上三个月来调试,我们已经做好了这样的准备。”

Focusing involves driving small actuators, or motors, on the back of the 18 segments of the primary mirror to harmonise their curvature. The current misalignment, which is measured in millimetres, will be brought down to one measured in nanometres - a factor of a million improvement.

对焦过程涉及控制主镜18块元件背后的小型促动器或者发动机,来调和它们的曲率。当前的错位是以毫米计算,届时将会降低到以纳米计算——这是百万分之一级别的提升。

Similar adjustments will be applied to the 74cm-diameter secondary reflector which sits out in front of the primary mirror and is used to bounce light back towards the instruments.

位于主镜前方、直径74厘米的副镜也会作相似的调节,它的作用是将光反射回设备上。

So far, the Webb mission has not put a step wrong. The launch and journey out to L2 passed off without incident.

目前,韦伯望远镜任务尚未在任何一步出过错。从发射到抵达L2点的旅程,均平安无事。

And even the complex business of unfolding the telescope after it came off the top of the Ariane rocket was made to look like the easiest of rehearsals.

而且,在离开亚利安火箭前端之后,望远镜打开的复杂过程,也被处理得仿佛是最轻松的排演。

"We were thrilled with the precision and success of all those deployments," said Kyle Hott, the mission systems engineering lead at Northrop.

“我们对所有这些程序的精确和成功感到激动,”此次任务的诺斯洛普·格鲁曼公司系统工程师主管凯尔·霍特(Kyle Hott)说。

"It's pretty incredible to think that it was all just a concept on paper decades ago, and now it's actually here, arriving at L2. Morale is high and we're so very excited."

“想想都觉得不可思议的是,几十年前,这一切还只是纸上谈兵的概念,现在它真的实现了,到达了L2点。我们士气高昂,非常兴奋。”

China coach Li urges team to "fight for every ball" in WC qualifier******

SHARJAH, UAE, Nov. 15 (Xinhua) -- China's national team head coach Li Tie has urged his players to "fight for every ball" in their upcoming World Cup qualifier against Australia.。

"We have overcome many obstacles to reach the final round of the qualifying tournament, therefore we cherish every game," Li told the pre-match press conference on Monday.。

"After five games, the team is getting better and better, while all the players are concentrated. I hope the players can do their best to play tomorrow's game well," he added.。

Australia beat China 3-0 in style when they met in Doha for the first time in the final round of the Asian World Cup qualifiers in September.。

"It was a high-tempo game that my players barely experienced before. Now they are getting used to the tempo. I told my players they must play better than the first leg and fight for every ball to create more difficulties for the opponents," Li said.。

China now ranks fifth in the six-team group with four points from five games, while Australia sits second with ten points. Li's team has to beat the Australians to keep their World Cup dream alive.。

"There is no doubt that the Australian team is better than us, as many of their players are based in European leagues. But nothing is impossible on the pitch, it's important that we have confidence in ourselves and never give up," Li added.。

Australian defender Harry Souttar will miss Tuesday's match due to injury, but the Socceroos head coach Graham Arnold said he doesn't worry about the team's defense.。

"It's a loss for our team because Souttar is a big central defender, but we still have some quality players. Millos Degenek is very experienced player, he played many European Champions League football, we expect he will have good performance," said Arnold.。

"We want to have good performance and look forward to winning the match," he added. Enditem。

全国最憋屈的省会,省内也没存在感

1.台退役少将称能让解放军无人机变瞎 台军连忙否认

2.北京市银行停业一周?五大行辟谣:仅个别风险区网点暂停

3.北京4例本土感染者涉及3区 社会面筛查1例在昌平区

4.朝阳一诊所因擅自接诊发热患者被停业整顿 当事人被行拘

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