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2017年10月19日 04:21:43|来源:国际在线|编辑:央广微博
It took three days — three long, often confusing and frustrating days — for me to fall for the Apple Watch. But once I fell, I fell hard.我用了三天,漫长的、时常感到困惑和沮丧的三天,才爱上Apple Watch。但一旦爱上了,就爱得颇为深沉。First there was a day to learn the device’s initially complex user interface. Then another to determine how it could best fit it into my life. And still one more to figure out exactly what Apple’s first major new product in five years is trying to do — and, crucially, what it isn’t.首先,用了一天时间来学习这款设备的用户界面,它一开始有些复杂。然后又用了一天确定如何对它进行最佳设置,以适合我的生活。还要用一天来弄明白,作为苹果(Apple)五年来推出的首款重要的新产品,它试图实现什么,以及更为关键的——它不打算实现什么。It was only on Day 4 that I began appreciating the ways in which the elegant 0 computer on my wrist was more than just another screen. By notifying me of digital events as soon as they happened, and letting me act on them instantly, without having to fumble for my phone, the Watch became something like a natural extension of my body — a direct link, in a way that I’ve never felt before, from the digital world to my brain. The effect was so powerful that people who’ve previously commented on my addiction to my smartphone started noticing a change in my behavior; my wife told me that I seemed to be getting lost in my phone less than in the past. She found that a blessing.到第四天时,我才开始体会它的好处,我手腕上这款650美元(约合4000元人民币)、外形典雅的电脑并非只是又一块显示屏那么简单。它能把刚刚发生的数码事件第一时间通知给我,让我做出及时的应对,但又不用去摸手机,这样一来,它就成了我身体的自然延伸,以一种我以前从未感觉到的方式,将数码世界和我的大脑直接连接在了一起。这种影响如此之大,以致于之前曾说我痴迷于智能手机的人,都开始注意到了我的行为变化;我妻子对我说,我似乎不像过去那么沉迷于手机了。她认为这是上天的恩赐。The Apple Watch is far from perfect, and, starting at 0 and going all the way up to ,000, it isn’t cheap. Though it looks quite smart, with a selection of stylish leather and metallic bands that make for a sharp departure from most wearable devices, the Apple Watch works like a first-generation device, with all the limitations and flaws you’d expect of brand-new technology.Apple Watch远非完美,并且不便宜,从350美元起,扶摇直上可以到1.7万美元。尽管看起上去相当漂亮,选用了时尚的皮革和金属腕带,并由此显得与大部分可穿戴设备截然不同,但Apple Watch的表现还是像个第一代设备,有着人们对一项全新的技术所能猜到的一切制约和缺陷。What’s more, unlike previous breakthrough Apple products, the Watch’s software requires a learning curve that may deter some people. There’s a good chance it will not work perfectly for most consumers right out of the box, because it is best after you fiddle with various software settings to personalize use. Indeed, to a degree unusual for a new Apple device, the Watch is not suited for tech novices. It is designed for people who are inundated with notifications coming in through their phones, and for those who care to think about, and want to try to manage, the way the digital world intrudes on their lives.此外,不同于之前具有突破意义的苹果产品,Watch的软件要求用户经历一个学习过程,这一点可能会阻碍一些人。对大部分消费者来说,Watch不是那种买来就能完美使用的东西,因为只有在用户通过拨弄各种软件设置,进行完个性化定制后,它才会处于最佳状态。实际上Watch不太适合科技新手,这一点的严重程度,是在以往的苹果新产品中不多见的。它的设计,面向的是被手机通知淹没的人,或是愿意去思考数码世界对生活的打扰,并试图去管理它的人。Still, even if it’s not yet for everyone, Apple is on to something with the device. The Watch is just useful enough to prove that the tech industry’s fixation on computers that people can wear may soon bear fruit. In that way, using the Apple Watch over the last week reminded me of using the first iPhone. Apple’s first smartphone was revolutionary not just because it did what few other phones could do, but also because it showed off the possibilities of a connected mobile computer. As the iPhone and its copycats became more powerful and ubiquitous, the mobile computer became the basis of a wide range of powerful new tech applications, from messaging to ride-sharing to payments.然而,即便并非为所有人准备,苹果在这款设备上还是摸索到了一些东西。Watch的实用性已经足以明,科技业对可穿戴电脑的迷恋,可能很快就会结出果实了。在这一点上,过去一周使用Apple Watch的经历,让我想起了用第一款iPhone时的情景。苹果的第一款智能手机具有革命性的意义,不仅是因为它做到了鲜有其他手机能做到的事情,还因为它显示出了联网的移动电脑的可能性。随着iPhone及其追随者变得越来越强大和普及,这种移动电脑成了强大新技术的广泛应用的基础,无论是即时通讯,拼车务,还是付应用。Similarly, the most exciting thing about the Apple Watch isn’t the device itself, but the new tech vistas that may be opened by the first mainstream wearable computer. On-body devices have obvious uses in health care and payments. As the tech analyst Tim Bajarin has written, Apple also seems to be pushing a vision of the Watch as a general-purpose remote control for the real world, a nearly bionic way to open your hotel room, board a plane, call up an Uber or otherwise have the physical world respond to your desires nearly automatically.同理,Apple Watch最令人兴奋之处不在于设备本身,而是在于它作为第一款主流可穿戴电脑可能开辟的科技新天地。穿戴在身体上的设备显然可以在医疗和付领域大有作为。正如科技分析师蒂姆·巴加林(Tim Bajarin)在文章中所写的那样,苹果似乎还在推动这样一种设想的实现:把手表作为真实世界里的一款多功能遥控器,一种几近用意念一般打开酒店房门、登机、叫车的方式,让物理世界能接近自动地回应自己的愿望。These situations suggest that the Watch may push us to new heights of collective narcissism. Yet in my week with the device, I became intrigued by the opposite possibility — that it could address some of the social angst wrought by smartphones. The Apple Watch’s most ingenious feature is its “taptic engine,” which alerts you to different digital notifications by silently tapping out one of several distinct patterns on your wrist. As you learn the taps over time, you will begin to register some of them almost subconsciously: incoming phone calls and alarms feel throbbing and insistent, a text feels like a gentle massage from a friendly bumblebee, and a coming calendar appointment is like the persistent pluck of a harp. After a few days, I began to get snippets of information from the digital world without having to look at the screen — or, if I had to look, I glanced for a few seconds rather than minutes.这些情景表明,这款手表可能会把我们带向集体自恋的新高度。然而,在我使用这款设备的一个星期里,我开始思考相反的可能性——它也可能会解决智能手机带来的社交忧虑。Apple Watch的最巧妙的功能是“轻拍引擎”——通过用不同的模式轻拍你的手腕,提醒你关注不同的数字化通知。当你逐渐熟悉了这些提醒的区别后,它们会在你的潜意识里留下深刻印象:来电和提醒是急促连续的跳动,短信提醒像是一个友好的大黄蜂的温柔,行事历安排像是不断地拨弄一把竖琴。几天之后,我不需要看屏幕就可以获得来自数码世界的信息提醒了——或者,如果我需要看的话,也只需花上几秒钟扫一眼,而不是好几分钟。If such on-body messaging systems become more pervasive, wearable devices can become more than a mere flashy accessory to the phone. The Apple Watch could usher in a transformation of social norms just as profound as those we saw with its brother, the smartphone — except, amazingly, in reverse.如果这种穿戴在身体上的消息系统更加普遍,可穿戴设备就不光是手机的一种酷炫的配件。Apple Watch可以引入一场智能手机曾经引发的那种深刻的社会规范变革,只不过是向相反的方向,这让人喜出望外。For now, the dreams are hampered by the harsh realities of a new device. The Watch is not an iPhone on your wrist. It has a different set of input mechanisms — there’s the digital crown, a knob used for scrolling and zooming, and a touch screen that can be pressed down harder for extra options. There is no full on-screen keyboard, so outbound messages are confined to a set of default responses, emoji and, when you’re talking to other Watch users, messages that you can draw or tap.目前,这些梦想在一款新设备的严峻现实前被压抑了。这款手表并不是手腕上的iPhone。它的输入机制不同——它有一个数字表冠,即用来滑动和放大屏幕的旋钮,还有一个可以通过增大按压力度调出其他选项的触屏。Apple Watch没有可以显示在屏幕上的全键盘,因此它发出的信息仅限于一系列默认回复和表情符号。当你与其他Apple Watch用户沟通时,还可以画图或轻拍。The Watch also relies heavily on voice dictation and the voice assistant Siri, which is more useful on your wrist than on your phone, but still just as hit-or-miss. I grew used to calling on Siri to set kitchen timers or reminders while I was cooking, or to look up the weather while I was driving. And I also grew used to her getting these requests wrong almost as often as she got them right.这款手表还严重依赖语音指令和语音助手Siri,后者在手表上比在手机上用处更大 ,但也很不稳定。我越来越习惯于在烹饪的时候用苹果语音助手Siri来设置厨房的定时器或提醒设备,或是在开车时用它来查看天气。而且我也越来越习惯她犯错的频率几乎与做对的频率一样高。The Watch also has a completely different software design from a smartphone. Though it has a set of apps, interactions are driven more by incoming notifications as well as a summary view of some apps, known as glances. But because there isn’t much room on the watch’s screen for visual cues indicating where you are — in an app, a notification or a glance — in the early days, you’ll often find yourself lost, and something that works in one place won’t work in another.它也拥有与智能手机完全不同的软件设计。尽管它有一系列应用程序,但互动主要来自收到的通知和一些应用程序的摘要视图——这种功能被称作“glance”(瞥一眼)。但是,由于目前手表屏幕上没有太多空间用来放置能说明你所处位置——在应用程序、通知还是“瞥一眼”中——的视觉线索,你经常会发现自己迷了路,而且有些东西在一个地方起作用,但在另一个地方就会失效。Finding nirvana with the watch involves adjusting your notification settings on your phone so that your wrist does not constantly buzz with information that doesn’t make sense on the Watch — like Facebook status updates, messages from Snapchat, or every single email about brownies in the office kitchen. Apple’s notification settings have long been unduly laborious; battling them while your hand is buzzing off the hook is an extra level of discomfort.要想对这只手表驾轻就熟,还需要调整你手机上的通知设置,这样你的手腕才不会因为手表上毫无意义的信息而不停震动——比如Facebook状态更新、来自Snapchat的信息,以及每一封电子邮件——包括那些关于办公室厨房里的布朗尼蛋糕的。苹果的通知设置一直过于繁复;在与它们对抗的同时,你的手还在不停地震动,更是令人不适。Other problems: Third-party apps are mostly useless right now. The Uber app didn’t load for me, the Twitter app is confusing and the app for Starwood hotels mysteriously deleted itself and then hung up on loading when I reinstalled it. In the end, though, it did let me open a room at the W Hotel in Manhattan just by touching the watch face to the door.其他问题:目前第三方应用程序基本没用。Uber的应用程序无法载入,Twitter令人疑惑,喜达屋(Starwood)酒店的应用程序曾莫名其妙地自行删除,当我重新安装时,它又一直停留在加载状态。不过最后,它还是让我在曼哈顿的W酒店打开了房间,方法就是用表面触碰房门。I also used the Watch to pay for New York cabs and groceries at Whole Foods, and to present my boarding pass to security agents at the airport. When these encounters worked, they were magical, like having a secret key to unlock the world right on my arm. What’s most thrilling about the Apple Watch, unlike other smartwatches I’ve tried, is the way it invests a user with a general sense of empowerment. If Google brought all of the world’s digital information to our computers, and the iPhone brought it to us everywhere, the Watch builds the digital world directly into your skin. It takes some time getting used to, but once it clicks, this is a power you can’t live without.我还用它在纽约付了打车费,在全食超市(Whole Foods)结账,并向机场安检人员展示了我的登机牌。当它在这些事情中起作用时,就有种神奇的感觉,好像我的胳膊上就有一把能开启这个世界的密钥一样。关于Apple Watch,最令人兴奋的一点就是,与我尝试过的其他智能手表不同,它能使用户获得一种被赋予能力的感觉。如果说谷歌(Google)把世界上所有的数字信息放到了电脑上,iPhone又使我们能随处查看这些信息,Apple Watch则直接把这个数码世界嵌入到你的皮肤里。要适应这一切还需要一些时间,但是一旦适应,你就会获得一种不可或缺的力量。The New York Times announced last week that it had created “one-sentence stories” for the Apple Watch, so let me end this review with a note that could fit on the watch’s screen: The first Apple Watch may not be for you — but someday soon, it will change your world.《纽约时报》上周宣布,它为Apple Watch创造了“一句话报道”,所以让我用一句可以放在手表屏幕上的话来结束这篇:Apple Watch刚开始可能不适合你——但是在不久的未来,它将改变你的世界。 /201504/369420Alibaba and Suning are planning a shopping spree - of each other#39;s shares.阿里巴巴(Alibaba)和苏宁(Suning)计划上演一场购物狂欢,它们收购的对象是对方的股票。Alibaba is splashing out RMB 28.3bn (.63bn) to buy a 19.99 per cent stake in Suning, which bills itself as China#39;s largest consumer electronics retailer , a deal that will make the Chinese electronics giant the second biggest shareholder in Suning.阿里巴巴将斥资283亿元人民币(合46.3亿美元)买入苏宁19.99%的股份,这家中国电商巨头将因此成为苏宁的第二大股东。苏宁自称是中国最大的消费电子产品零售商。At the same time, Suning will spend up to RMB14bn (.28bn) to buy up to 27.8m newly issued ordinary shares in Alibaba.而苏宁将斥资140亿元人民币(合22.8亿美元)买入阿里巴巴至多2780万股新发普通股。After the investment, Suning will hold a stake of approximately 1.1 per cent in Alibaba.做出这笔投资后,苏宁将持有阿里巴巴近1.1%的股份。The companies said:“The strategic collaboration between Alibaba and Suning marks a milestone that signals the further integration of digital and offline retail. This strategic collaboration will bring benefits to hundreds of millions of Chinese consumers who use Alibaba#39;s online platforms and Suning#39;s offline channels. By cooperating, Alibaba and Suning will be able to provide holistic and more convenient shopping experiences, as well as superior customer service to users looking to purchase online and through mobile devices.”两家公司表示:阿里巴巴和苏宁的战略合作,具有里程碑式的意义,标志着数字化零售和线下零售的进一步整合。对于使用阿里巴巴线上平台和苏宁线下渠道购物的中国数亿消费者来说,这一战略合作将给他们带来好处。通过相互间的合作,阿里巴巴和苏宁将能够提供线上线下融合的便捷购物体验,还能为那些追求线上购物和移动购物方式的用户提供超值的客户务。 /201508/392135

China#39;s Early Development of Laser Technology我国早期激光技术的发展In 1957, Wang Daheng and other saentists set up China#39;s first professional optical lnstitute-the Chinese Academy of Sciences ( Changchun) Optical Precision Instruments Machinery Research Institute ( ;MRI; ) in Changchun. Under the leadership of the older generation of experts, o number of young science and technology workers grew rapidly, Deng Ximing is one of the outstanding representatives. As early as in 1958, not long after the ed SR:rtes physicists Xiaoluo, Townes published their famous laser papers, he actively promoted this new technology research , then with the combination of the innovative spirit of the young and middle-aged research team proposed substantial increase brightness light source, color units, coherence of ideas and experimental programs in a short time. In 1960 the world#39;s firs laser come out. In the summer of 1961, under the auspices of Wang Zhijiang, China#39;s first ruby laser developed. Within a short space of a few years, laser technology developed rapidly, and a number of advanced achievements were produced. Various types of solids, gases, chemicals and semiconductor lasers hcrve been successfully developed. In the basic research and key technologies, a series of new concepts, new methods and new technologies ( such as mutation and cavity Q-to-Gt, traveling wave amplification, Re-use system, free electron oscillations radiation, etc. ) have been put forward and implemented, many of which are unique.1957年,王大珩等在长春建立了我国第一所光学专业研究所——中国科学院(长春)光学精密仪器机械研究所(简称“光机所”)。在老一辈专家带领下,一批青年科技工作者迅速成长,邓锡铭是其中的突出代表。早在1958年美国物理学家肖洛、汤斯关于激光原理的著名论文发表不久,他便积极倡导开展这项新技术研究,在短时间内凝聚了富有创新精神的中青年研究队伍,提出了大量提高光源亮度、单位色性、相干性的设想和实验方案。1960年世界第一台激光器问世。1961年夏,在王之江主持下,我国第一台红宝石激光器研制成功。此后短短几年内,激光技术迅速发展,产生了一批先进成果。各种类型的固体、气体、半导体和化学激光器相继研制成功。在基础研究和关键技术方面、一系列新概念、新方法和新技术(如腔的Q突变及转镜调Q、行波放大、铼系离子的利用、自由电子振荡辐射等)纷纷提出并获得实施,其中不少具有独创性。At the same time, as a high-brightness, high-directional, high-quaIity, and other advanced features of the new light source, laser was used in various technical fields quickly, demonstrating a strong vitality and competitiveness. On communication, in September 1964, television pictures were transmitted by laser demon- stration, and in November 1964, calls were achieved in 3 km t0 30 km. On industry, in May 1965, with laser drilling machine successfully used in Drawing Die Blanking production, significant economic benefits were acquired. On Medicine, in June 1965, retinal laser welding for the animals and clinical trials were conducted. On national defense, in December 1965 , laser rangefinder Diffuse Reflectance ( accuracy of 10m/10km) successfully developed, and in April 1966, remote control pulse laser Doppler velocimeter successfully developed.同时,作为具有高亮度、高方向性、高质量等优异特性的新光源,激光很快应用于各技术领域,显示出强大的生命力和竞争力。通信方面,1964年9月用激光演示传送电视图像,1964年11月实现3—30千米的通话。工业方面,1965年5月激光打孔机成劝地用于拉丝模打孔生产,获得显著经济效益。医学方面,1965年6月激光视网膜焊接器进行了动物和临床实验。国防方面,1965年12月研制成功激光漫反射测距机(精度为10米/10千米),1966年4月研制出遥控脉冲激光多普勒测速仪。 /201602/419386

As NASA prepares for the debut test flight of the first spaceship in more than 40 years to carry astronauts beyond Earth, a fleet of privately owned vehicles is in development to take over transportation services to and from orbits closer to home.40多年来美国宇航局准备首次试飞第一艘宇宙飞船将携带宇航员到地球之外,一家私人公司正在开发接管从地球到轨道的运输务。Whether heading to the International Space Station, which flies about 260 miles above the planet, or other destinations, the journeys begin with rocket rides that have enough muscle to counteract Earth#39;s gravity and get their cargo traveling at speeds of at least 17,500 mph to achieve orbit.不管前往国际空间站然后在距地球大约260英里处旋转,或是转到他目的地,旅行从火箭发射起,必须有足够的力量来抵消地球引力发送他们的货物以至少17500英里每小时的速度进入轨道。NASA, for example, is using the biggest booster in the U.S. fleet, a Delta 4 Heavy, to shoot its Orion deep-space capsule as far as 3,600 miles from Earth during a test flight scheduled for Thursday. The key point of the test is to get Orion moving at about 20,000 mph before it slams into Earth#39;s atmosphere to test its heat shield.美国国家航空航天局(NASA),在周四即将使用美国私营公司最大的助推器(德而它斯重型火箭发动机),将把“猎户号深空探测器”太空舱发送距离地球3600英里处。测试的重点是测试它的隔热板,就是让猎户座以20000英里每小时的速度猛烈撞击地球大气层。Even suborbital spaceships, such as Virgin Galactic#39;s SpaceShipTwo and XCOR Aerospace#39;s Lynx space place, rely on rocket power to leave the atmosphere, though gravity quickly pulls them back to Earth. They don#39;t necessarily have to launch from land, however.甚至亚轨道太空飞船,如维珍二号宇宙飞船和XCOR公司航空航天的山猫亚轨道飞船,仍然依靠火箭离开大气层,不过重力很快把他们拉回地球。他们不一定要从地面发射。SpaceShipTwo, for example, is carried by airplane and released mid-air to fire its rocket, a design also used by the experimental X-15 space plane in the 1960s. Air-launching uses smaller rockets than those needed for similar ground-based flights, eliminates the need for expensive launch pads and opens options for launch sites, since the planes can take off from commercial runways.例如,太空飞船二号是由飞机携载和火箭空中发射,使用的设计也在1960年代发布的一个实验性的前身航天飞机原形。空中发射火箭使用小型火箭而不用类似有地面发射台的,不需要启动昂贵的发射台发射站点,因为飞机可以从商业跑道起飞。More diverse are the spacecraft designs the companies have chosen, reflecting not only different technical solutions to the challenges of flying people beyond Earth, but also their alternative visions of the future.更加多样化航天器设计公司精心选择结果,这反映了不同的技术解决方案来面对地球之外的挑战,而且这也改变着未来。FORM DICTATES FUNCTION结构影响功能NASA preceded its so-called Commercial Crew development effort with a program to buy flights for space station cargo. Two U.S. supply lines are now running, though one operator, Orbital Sciences Corp, is regrouping after a launch accident last month. The other company flying cargo for NASA is California-based Space Exploration Technologies, owned and run by technology entrepreneur Elon Musk.NASA为空间站货物购买航班的商业模式,是由两个美国供应链运行,不过一个运营商因为上个月发射事故而重组。另一家是加州太空探索技术基地,拥有和经营的这家科技企业的是伊隆马斯克(Tesla的创始人)。From the start, SpaceX designed its Dragon capsule to not only fly cargo, but also crew. ;Cargo doesn#39;t need windows,; Musk quipped before the capsule#39;s first flight to the space station in 2012. Upgrades are underway to add life support equipment, seating and an escape system for crew, but SpaceX has even grander ambitions for its gumdrop-shaped Dragon. It isdesigned to fly people to Mars.从一开始,SpaceX公司设计了“龙”太空舱不仅飞货物,而且能飞船员。马斯克在太空舱2012年第一次飞往国际空间站时打趣道:“货物不需要windows。升级正在进行中,以添加生命持设备、座椅和一个宇航员逃生系统,但SpaceX 对于具有三层保护装置的太空舱有更大的保护。它的目的是带人们飞往火星。;The long-term ambition of SpaceX is to develop the technologies to establish a self-sustaining civilization on Mars … Wings and runways don#39;t really work if you#39;re going somewhere other than Earth,; Musk said at a Massachusetts Institute of Technology symposium in September.“从的长期来看SpaceX是要利用技术在火星上建立自己的文明…没有了地球你可以在其他地方生活,”马斯克9月在麻省理工学院的研讨会上说。Boeing, too, chose a capsule design for its planned space taxi, known as the Crew Space Transportation (CST)-100. ;The conical shape is inherently stable as we re-enter the atmosphere,; Chris Ferguson, Boeing director of Crew and Mission Systems, said in an interview with Reuters.波音公司也为自己的太空出租车计划选择了一个太空舱设计,称为船员舱运输(CST)-100。“圆锥形状利于我们进入大气层,”克里斯-弗格森,波音公司主管人员在接受路透采访时表示。The capsule, which parachutes to a splashdown in the ocean or a touchdown on land, is intended to improve astronaut safety, added Ferguson, a former NASA space shuttle pilot and commander.带着降落伞的太空舱没入大海之中或降落在陆地上,旨在改善宇航员安全,弗格森补充道,前美国国家航空航天局航天飞机飞行员兼指挥官。Boeing plans to modify the CST-100 if it wins a second NASA solicitation, currently underway, to fly cargo to the station. Cargo and crew would fly separately.如果赢得下一个NASA订单波音公司不得不暂停cst - 100计划,因为货物和船员分别要开飞。;I lived through the (space shuttle) Columbia accident in 2003 and one of the conclusions … was that that including the payload with the people was not the wisest choice. We carried 50,000 pounds of payload (on the shuttle), which was incredible, and up to seven people. But to make the systems safe to carry passengers, you have to make a fairly large vehicle. We think it is a much better approach to have the people and the cargo travel in different vehicles,; he said.“我经历过2003年哥伦比亚号(航天飞机)事故…,负荷太多不是最明智的选择。我们放置50000磅重量在航天飞机上,这是难以置信的一共个7人。所以要使系统安全运送乘客,你必须做出相当大的火箭。我们认为这是一个更好的方法,人们在客船火箭中旅行而不是货船,”他说。THINGS WITH WINGS展翅飞翔Capsules may be simpler to fly and cheaper to build, but they do have limitations. Sierra Nevada#39;s winged Dream Chaser, for example, resembles a miniature space shuttle, with an aerodynamically shaped body and wings so it can fly back from space, rather than make a ballistic plunge through the atmosphere like capsules.太空舱可能是简单和便宜的飞行器,但它们确实有局限性。例如内华达山脉股份公司Sierra Nevada Corporation,简称SNC的有翼的追梦者号,就像一个拥有翅膀和无阻力设计主体的迷你航天飞机,这样就可以从太空飞回来而不是靠穿越大气层的火箭。;We come back with a significantly lower g-force during re-entry,; said Sierra Nevada Vice President Mark Sirangelo, referring to ;gravity force; or a measure of acceleration.;We#39;re about 2 gs and most capsules are 4- to 6. That protects returning experiments and crew,; Sirangelo said in an interview.“返回过程是一个显著下降的低重力过程,“内华达副总裁Mark Sirangelo说,他指的是“地心引力”或加速度的测量。“我们的约是2 gs但是大多数太空舱是4 - 6(这是加速度单位,1Gs就是一倍的地球表面重力加速度)。它更有效保护船员“Sirangelo在接受采访时表示。Like the space shuttle, Dream Chaser is designed for runway, not water, landings, though its small size means it can touch down on most commercial runways anywhere in the world.“The idea of being able to come home to Ellington Field in Houston with an experiment from the space station for Texas Medical Center and have them take if off the vehicle and get it in their labs in a half-hour is very useful,” Sirangelo said.像这种航天飞机,追梦者号是专用跑道,不需要水和降落伞,它的小尺寸意味着它可以在大多数商业跑道降落在世界任何地方。“这样的话得克萨斯州医学中心的空间站能够回到休斯顿的爱玲董菲儿的机场或者用半小时时间就把他们送到实验室是非常有用的,”Sirangelo说。Sierra Nevada currently is protesting NASA#39;s decision to proceed with a final round of development funds and flight services contracts to SpaceX and Boeing. A decision by the U.S. Government Accountability Office is due by Jan. 5. NASA also has an unfunded agreement to work with Jeff Bezos#39; rocket company, Blue Origin.内华达目前抗议美国宇航局决定进行最后一轮发展基金并且与飞行器SpaceX公司和波音公司签订的务合同。由联邦政府会计总署决定(Government Accountability Office)截止日期是1月5日。NASA也有短期协议与杰夫·贝佐斯的火箭公司(蓝源公司(BlueOrigin)是由亚马逊创始人杰夫·贝索斯(JeffBezos)创建的私人太空飞行初创公司,已经在2018无人任务开始前,成功地测试了现有的氢燃料火箭)。In the meantime, Sierra Nevada is pursuing other contracts, including additional station resupply work for NASA that also is drawing bids from SpaceX, Orbital Sciences, Boeing and possibly other contenders.同时,内华达公司正在寻求其他的合同,包括为美国国家航空航天局额外的空间站补给工作,包括为SpaceX公司波音及其轨道科学公司画画图纸,当然可能有其他的竞争者。;We call Dream Chaser a #39;space utility vehicle#39; for a reason. It can accomplish multiple purposes from the same core design, like an AC-130 aircraft. We can do repair missions, change altitudes. Capsules can#39;t do that very easily. We can do construction, like the space shuttle did to build the space station. We can be an independent or co-dependent lab and stay in orbit for one year or longer conducting experiments. From the same basic design, we can contemplate all these missions,; Sirangelo said.“我们叫追梦者“空间多功能飞行器”是有原因的。它可以同时完成多个工作,像ac - 130飞机。我们可以自动完成修复任务甚至改变高度。太空舱就不能那么做。我们可以做建筑,像航天飞机一样建造空间站。我们可以成为一个独立或相互依赖的实验室并且在轨道上停留一年或更长时间进行实验。从设计上看,我们可以完成所有这些任务,”Sirangelo说。Sierra Nevada aly may have landed one customer. Paul Allen#39;s Strato launch Systems, which is building a massive airplane to serve as an airborne rocket-launching platform, announced last month it is considering buying a smaller version of Dream Chaser for commercial passenger spaceflights. The space plane would be attached to the Strato launch mothership for a ride into the atmosphere and then released to fire its own rocket engines and catapult it into space. The system could be used to fly people to and from orbit, as well as for sub-orbital hops, including taking off and landing in different locations, so called ;point-to-point; travel. That#39;s a service that Virgin Galactic, another space tourism startup owned by Richard Branson#39;s Virgin Group, would like to offer as well.内华达公司可能已经有一个客户了。保罗·艾伦的平流层发射系统公司,构建一个庞大的飞机作为机载火箭发射平台,上月宣布它正在考虑购买一个追梦者号较小的版本。航天飞机将附加到平流层发射系统母舰上然后点燃火箭引擎进入太空。系统可以用来发射和接受,以及亚轨道飞行,包括起飞和降落在不同的位置,就是所谓的“点对点”旅行。理查德·布兰森表示维珍集团愿意提供务持。For now, Virgin Galactic#39;s six-passenger, two-pilot space plane, called SpaceShipTwo, will be limited to sub-orbital flights that originate from and return to the same location. The company#39;s first vehicle was destroyed during a fatal test flight inMojave, Calif., on Oct. 31. The second vehicle is under construction. Point-to-point suborbital travel would require a different design, such as a blunter shape to better handle the higher speeds and heat of atmospheric re-entry, and a more powerful rocket engine.目前,维珍的客载六人的双驾驶航天飞机,被称为“宇宙飞船二号”将是有限次轨道飞行。公司的第一架被毁在莫哈韦试飞期间,加州10月31日。第二个正在建设中。点对点的亚轨道旅游需要一个不同的设计,如顿的形状更好的掌握速度但是进入大气温度却很高需要一个更强大的火箭发动机。RISK AND REWARD风险和回报Until the accident, SpaceShipTwo was on track to begin the world#39;s first commercial passenger spaceflight service in 2015 – 11 years after the prototype SpaceShipOne won the million Ansari X Prize for demonstrating private manned spaceflight.Coincidentally, it was 11 years after Wilbur and Orville Wright flew the world#39;s first powered airplane in 1903 that a paying passenger sat in the open cockpit of a boat-shaped Benoist XIV biplane for a ride across Florida#39;s Tampa Bay, the debut flight of the country#39;s first commercial airliner.发生事故到现在,太空飞船二号有望成为世界上第一个商业客运航天役(原型“2015 - 11年后赢得了1000万美元的安萨里X奖(2004年10月4日,由鲁坦(Burt Rutan)设计制造,微软合伙人保罗·艾伦(Paul Allen)投资的价值2500万美元的私人飞船“太空船一号”(SpaceShipOne),赢得了这项奖额1000万美元的安萨里X大奖))。巧合的是,在威尔伯和奥维尔·赖特在1903年发明世界上第一个动力飞机11年以后,敞开式座舱双翼飞机搭载着乘客穿越佛罗里达的坦帕湾实现商业首飞。;If you could have had a conversation with that person who bought the first ride and said, #39;In your lifetime, you#39;re going to be riding in air-conditioned comfort at 35,000 feet, traveling .8 Mach, watching a movie and talking to friends on the ground,#39; that guy would have said, #39;What#39;s a movie?#39; The telephone, the jet … none of that had been invented, but all ofit came into being very, very quickly after the airplane,; said Stu Witt, the chief executive and general manager of the Mojave Air and Space Port.“如果给你一个和第一个坐飞机乘客交谈机会,你会说“在你的一生中,可以在35000英尺高度享受电影空调视频聊天吗,“那个家伙会说,什么是电影?什么是电话,什么是飞机…因为那时这些没有被发明,但是自从有了飞机之后一切都发展的好快“莫哈维太空站负责人斯图威特说So is commercial spaceflight similarly primed?那么,商业航天时刻会来吗?;You put enough humans with brains and eyes and ears and senses in new environments and somebody is going to think of something we haven#39;t thought of. The fashion industry will change. The entertainment industry will change. Something will come out of it that you and I shouldn#39;t even be silly enough to try and forecast,” he said.“新环境之中,时尚界将会改变。界将会改变。世界的发展毋庸置疑,一切东西就会发明出来。”他说。 /201412/348144

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