当前位置:黑龙江地方站首页 > 龙江新闻 > 正文

上海市去咖啡斑多少钱百科指南上海第九医院做双眼皮开眼角多少钱

2019年10月24日 11:31:48    日报  参与评论()人

宝山注射丰唇一针的费用黄浦治疗蒙古斑价格Researchers have developed electronic ‘paper’ that is less than a micrometre thin and works like a Kindle tablet – but requires far less energy.研发人员已研制出电子“纸片”,厚度不足一微米,功能可与Kindle平板相当,不过其能耗更低。The bendable display reflects light to produce as many colours as an LED screen, and unlike the latter, it thrives in brightly lit areas.可弯曲的显示屏在光的反射下产生如同LED显示屏一样五斑斓的颜色,但与后者不同,这种显示屏只有在光线明亮的区域才会产生色。The team has so far built and tested a few pixels of the material, and while it’s not yet y for application, they say manufacturing a product with the display is likely soon to come.迄今为止,研发团队已经制作并测试了材料的多种像素,虽然目前还不适合应用,但他们表示其产品的大规模生产将很快成为现实。Researchers at Chalmers University of Technology stumbled upon the combination to create the electronic display while working on placing conductive polymers on nanostructures.查尔姆斯理工大学研究人员在将导电聚合物放置在纳米结构上时,偶然发现二者结合可制造出电子显示屏。The thin, flexible material relies on the polymers’ ability to control how light is absorbed and reflected.这种轻薄、灵活可弯曲的“显示屏”主要取决于该聚合物控制光线吸收和反射的能力。These polymers cover the surface of the material, and guide electric signals throughout the full display to create high resolution images.这些聚合物覆盖在材料表面,引导电信号在整个显示屏进行传输,从而产生高分辨率图像。The results are described in a paper published to the journal Advanced Materials.该研究成果的论文刊登在《新材料》杂志上。‘The “paper” is similar to the Kindle tablet,’ says Andreas Dahlin.安德里亚斯.达林说,“这张电子‘纸片’和Kindle平板差不多。”‘It isn’t lit up like a standard display, but rather reflects the external light which illuminates it. Therefore it works very well where there is bright light, such as out in the sun, in contrast to standard LED displays that work best in darkness.“它并不像标准显示屏一样被点亮,只能通过外部光线反射才能发光。因此,它在光线明亮时工作很好,比如太阳光下,而标准LED显示屏则在黑暗中工作最佳。”‘At the same time it needs only a tenth of the energy that a Kindle tablet uses, which itself uses much less energy than a tablet LED display.’“同时,它所需能量仅为Kindle平板电脑的十分之一,其本身能耗也比平板LED显示屏要少得多。”According to the researchers, the samples they#39;ve so far built and tested use the same red, green, and blue colours which combine to give LEDs their vibrant displays.研发人员表示,他们目前研制并测试的样本使用红色、绿色和蓝色,这也是组合出LED能显示的所有鲜艳色的三种颜色。Moving forward, they will build pixels to cover much larger areas.接下来,他们将构建更多的像素来覆盖更大的区域。‘We are working at a fundamental level but even so, the step to manufacturing a product out of it shouldn’t be too far away,’ Dahlin says.达林说:“我们的研究还处于基础层面,但即使这样,距离生产该类产品也不远了。”‘What we need now are engineers.’“我们目前需要的是工程师。”This type of material could be used outside for public displays, the researcher says, helping to reduce energy consumption and upgrade signs and information screens to be both electric and flexible.研发人员说,这种类型的材料可以应用在室外的公共显示屏上,既能减少能耗,又能将指示屏和信息屏升级成电子化且可弯曲的显示屏。The researchers are working to improve their design, which currently uses gold and silver, and would thus be expensive to manufacture.研发人员还在优化设计,因为目前显示器使用的是金和银,生产成本太高。‘The gold surface is 20 nanometres thick so there is not that much gold in it,’ says Dahlin.达林说:“金制表面的厚度为20毫微米,因此制造这样一个产品并不需要特别多的黄金。”‘But at present there is a lot of gold wasted in manufacturing it. Either we reduce the waste or we find another way to decrease the manufacturing cost.’“但在目前的制造过程中,很多黄金被浪费。所以我们要么减少浪费,要么寻找另外一种方式来降低生产成本。” /201610/473752上海鼻基底手术费用 玫瑰李鸿君院长擅长做那种鼻子

上海自体脂肪丰唇上海去痤疮多少钱 黄浦区人民医院激光除皱多少钱

上海市华山医院割双眼皮多少钱 Red means ;stop,; green means;go,; and yellow means ;hurry up and make that damn light.;Why those colors, though? Why not blue, purple, and brown? I have to admit thataside from a hunch that it had to do with wavelengths, I had no idea myself, soI decided to look into it.红灯停,绿灯行,黄灯亮了快点走,但为什么交通信号灯要用这三个颜色,而不用蓝色、紫色或者褐色呢?必须承认除了直觉认为这与波长有关外,我完全不知道原因,所以我决定一探究竟。The answer, as it turns out, is a littleconvoluted, but makes sense. 事实明,确实有点复杂,不过倒也还讲得通。The earliest traffic signals were designedfor trains, not cars. 最早的交通信号灯是为火车而不是汽车通行设计。They were red and green, gas-powered, andmore than a little dangerous in the event of a leak.信号灯为红色和绿色,使用煤气,在漏油时会非常危险。#8226;Red is an inherited symbol from railroads红色源于铁路信号灯Red symbolizes danger in many cultures,which makes sense, considering it has the longest wavelength of any color onthe visible spectrum, meaning you can see it from a greater distance than othercolors. 由于红色在可见光谱中波长最长,因此可视距离要比其它颜色更远,这就可以理解为什么很多文化中将红色视为危险信号。Red has meant stop since long before carsexisted, with train signals#39; use of red dating back to the days when mechanicalarms lifted and lowered to indicate whether the rail ahead was clear. 红色很早以前就被用作火车信号,那时汽车还没出现,而铁路用机械臂板上升下降来代表前方是否有火车驶来。So that one#39;s simple.这比较容易理解。#8226;Green meant ;caution; at first绿色最早用于警示Green#39;s role in lights has actually changeddramatically over time. 长期以来绿色在交通信号灯中的角色发生了巨大变化。Its wavelength is next to (and shorterthan) yellow#39;s on the visible spectrum, meaning it#39;s still easier to see thanany color other than red and yellow. 可见光谱中,绿色波长因仅次于黄色,因此是除了红色和黄色外最容易看见的颜色。Back in the early days of railway lights,green originally meant ;caution,; while the ;all-clear;light was, well, clear or white. 在早期的铁路信号灯中,绿色最初代表警示,而无色或白色代表全线通行。Trains, of course, take an interminablylong time to stop, and legend has it that several disastrous collisionshappened after an engineer mistook stars in the night horizon for an all-clear.当然,火车停下来需要非常长的时间,据说由于一名工程师将夜晚天空中的星星误认为全线通行的信号灯,导致了若干起灾难性事故的发生。Thus, green became ;go,; and fora long time, railways used only green and red to signal trains.因此,绿灯成为了通行的标志,长期以来铁路也只将红色和绿色作为信号灯。#8226;Yellow means ;caution; because it#39;s almost as easy to seeas red黄色代表注意,因为它几乎和红色一样显眼。From the earliest days of motoring up untilthe mid-1900s, not all stop signs were red --many were yellow, along with yieldsigns, because at night it was all but impossible to see a red stop sign in apoorly lit area. 从最早开始出现汽车到20世纪中期,并不是所有的停车信号都用红色——很多使用黄色,让路标志也是,因为夜晚在光线极暗的地方根本看不见红色的停车信号。The yellow stop-sign craze began in Detroitin 1915, a city that five years later installed its first electric trafficsignal, which happened to include the very first amber traffic light, at thecorner of Michigan and Woodward Aves.黄色停车信号潮始于1915年的底特律,五年后,这座城市在密歇根和伍德沃德大街安装了第一个首次包括黄色灯的电子交通信号灯。But what of those weird yellow stop signs,you ask? As materials and technologies evolved, the ability to produce highlyreflective signs meant that red could resume its natural spot in the signhierarchy, leaving the still-highly-visible yellow (it#39;s second only to red interms of visible wavelength) to the domain of ;caution.; That#39;s whyschool zones and buses, crosswalks, and other important warnings are yellowtoday.你是不是想问,那些奇怪的黄色停止标志又是干什么的呢?材料学和高技术的发展使得人们研发出高度反光指示灯,因此红色才能在信号灯中重拾停车霸权,将可视度较高的黄色(可视波长仅次于红色)留在了警告的位置。这也是为什么学校区、公交站、人行横道和其它重要位置使用黄色警告信号灯的原因。 /201610/470243嘉定区人民医院激光除皱多少钱交通大学医学院附属仁济医院隆胸价格费用

上海五官科医院激光祛斑多少钱
奉贤区人民医院激光除皱手术价格
上海市第一人民医院祛痘多少钱服务问答
上海玫瑰做双眼皮开眼角多少钱
百度分享浦东新区哪家美容医院比较好
上海市中西医结合医院做祛眼袋手术价格
上海玫瑰医院整形去疤多少钱
上海市奉贤区奉城医院激光脱毛多少钱爱社区第六人民医院金山分院口腔科
国际指南上海复旦大学附属华山医院祛痘多少钱平安分享
(责任编辑:图王)
 
五大发展理念

龙江会客厅

上海九院做去疤手术价格
第六人民医院金山分院做抽脂手术价格费用 九院激光祛太田痣多少钱乐视活动 [详细]
上海交通大学医学院附属上海儿童医学中心治疗腋臭多少钱
上海市第一人民医院激光除皱手术价格 青浦区激光祛痘印多少钱 [详细]
上海玫瑰医院去痣多少钱
上海市妇幼保健医院打瘦腿针的费用 挂号口碑上海市第九医院光子脱毛多少钱时空养生 [详细]
上海市瑞金医院去痘印多少钱
搜医问答上海瑞金医院做祛眼袋手术价格 上海隆鼻医院哪家好普及口碑上海市第一人民医院韩式三点双眼皮多少钱 [详细]