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江西赣州市医院院长是谁百姓报

2019年11月14日 07:43:34 | 作者:百度报 | 来源:新华社
The millions of New Yorkers who pour out of crowded subway cars and into high-tech jobs in Manhattan every day would be taken aback to see inside the 4th Street signal tower. The tower — a subterranean room in Greenwich Village — is a veritable museum of ancient, electromechanical technology, some of it dating back to the 1930s and 1940s. 纽约每天有数百万人从拥挤的地铁车厢蜂拥而出、然后奔向曼哈顿的各个高科技岗位。如果他们看到第四街(4th Street)信号室内部的样子,可能会大吃一惊。位于格林威治村(Greenwich Village)地下的这间信号室是一个名副其实的物馆,展示着古旧的电机技术,其中某些部分可追溯至上世纪三四十年代。 The technology still controls trains safely but it is growing harder to maintain. The system’s limitations also restrict the number of trains the Metropolitan Transportation Authority (MTA), the subway system’s operator, can operate at the busiest times. 这种技术仍安全地调控着地铁,但越来越难以维护。该系统的局限性也限制了地铁系统运营方纽约大都会交通署(Metropolitan Transportation Authority)在高峰期能够运营的最大列车数量。 Two companies, Germany’s Siemens and France’s Thales, face the formidable challenge of replacing outmoded technology on key parts of the system with modern electronic systems that will cost less to maintain and increase capacity. 德国西门子(Siemens)和法国泰雷兹(Thales)这两家公司面临这项艰巨的挑战:用维护成本较低、能够增加运力的现代电子系统,去替换地铁原有信号系统关键部位的过时技术。 Yet they face the task not only of making the new communications-based train control (CBTC) system work with older technology but also of installing it on a network that operates round the clock. This all-day, all-night operation sets New York apart from other old metro systems such as London and Paris, which have made far more rapid progress in installing CBTC signalling. 然而,它们不仅面临让新的基于通信的列车控制(CBTC)系统与老技术兼容的任务,而且还得把它安装在一个全天候运营的网络中。这种24小时不间断运营让纽约的地铁系统不同于伦敦和巴黎等其他较旧的地铁系统,后者在安装CBTC信号系统方面取得了更为迅速的进展。 “The railroad doesn’t stop,” Kevin Riddett, head of Siemens Mobility business in the US, says. “You get very limited access.” 西门子交通(Siemens Mobility)业务美国负责人凯文#8226;里德特(Kevin Riddett)表示:“地铁系统不会停下来,我们的安装操作非常受局限。” One problem is the lack of clear records about what was installed in the first place. The work is also going to move quickly beyond the two discrete lines where installation has been tried first — the Canarsie line, which carries the L train from Manhattan to outer Brooklyn, and the Flushing line that carries the 7 train through Queens. The system started operating on the Canarsie line in 2007 and is due to go into operation on the 7 train next year. 一个问题在于缺乏原本安装了什么的清晰记录。工程还将迅速扩展至首次试安装CBTC系统的两条互不相连的线路以外。这两条线路一条是从曼哈顿至远郊布鲁克林的运营L号线的卡纳西线(Canarsie line),另一条是从曼哈顿到皇后区运营7号线的法拉盛线(Flushing line)。该系统从2007年开始在卡纳西线运营,并计划从明年起在7号线上运营。 Siemens and Thales were last year both awarded contracts to start installing CBTC on the Queens Boulevard Line. Like much of the New York subway, the four-track line is used by multiple different services. All the trains operating on the route will need technology to communicate with the new signals. 西门子和泰雷兹(Thales)去年全都获得了在IND皇后大道线(Queens Boulevard Line)开始安装CBTC系统的合同。与纽约地铁许多线路一样,这条四轨线路供多个不同的务使用。所有在该线上运营的列车都将需要技术装备来与新的信号系统通讯。 The award of the contracts for work on Queens Boulevard was a sign of the MTA’s determination to make improvements across the network, Thomas Prendergast, the MTA’s chairman, said in July when awarding the work. MTA主席托马斯#8226;普伦德加斯特(Thomas Prendergast)在去年7月授予这些合同时表示,授予这些在IND皇后大道线上作业的合同,表明MTA决心升级改造整个网络。 Installation of CBTC has allowed a substantial increase in L train services. CBTC系统的安装使得L线列车出勤大幅增加。 “CBTC represents the MTA’s efforts to bring advanced technology to a century-old subway system that, in some parts, has not been updated in decades,” Mr Prendergast said. 普伦德加斯特表示:“CBTC代表着MTA向一个拥有百年历史的地铁系统引入先进技术的努力,这个地铁系统的某些部分已有几十年没有升级改造过。” However, Mr Riddett also points out that CBTC installation on the Canarsie line took a painful seven years as the company struggled to adapt microprocessor-based technology for the first time to the subway. He is hopeful the Queens Boulevard work will be far faster and that the MTA should start working faster on installation elsewhere. 然而,里德特也指出,在卡纳西线上安装CBTC系统耗费了7年时间、过程艰辛,因为该公司很难将基于微处理器的技术首次运用于地铁上。他预计IND皇后大道线的工程进展将会快得多,而且MTA应该会更快开始在其他线路上安装这一系统。 “All of the technology is proven out for Queens Boulevard,” he says. 他说:“在IND皇后大道线上安装的时候,这项技术已全部经过了检验。” /201603/431863A Chinese Startup Made The Thinnest Smartphone In The World — Here#39;s What It Looks Like一家中国新公司制造了世界上最薄的手机——它就长这个样子The Oppo R5 is the thinnest smartphone in the world.Oppo R5是世界上最薄的智能手机。It#39;s more than two millimeters slimmer than the iPhone 6, and it#39;s so skinny it can#39;t even fit a standard headphone jack.它比iPhone 6还要薄两毫米,如此之薄,以至于机身上都无法容纳一个标准的耳机插孔。The phone, which was unveiled at the end of October, is only available in a few select countries at the moment. It will eventually roll out to various markets around the world, including the ed States, but China-based Oppo hasn#39;t made any announcements about that yet. It costs 0 unlocked, which is a bit cheaper than the iPhone 6 which starts at 0 without a carrier contract.这款手机于10月底发布,目前只有几个国家能购买到。最终将在全球不同市场有售,包括美国,但是这家叫做OPPO的公司还没有就此发表任何声明。售价450美元,比iPhone 6要便宜,iPhone 6的非合约机500起售。We#39;ve only been playing with the phone for a couple of days, but we wanted to give you a look at how slim it is before wedive into the full review.这款手机我们才刚买了几天,但是我们想向你们展现一下它有多薄。Here#39;s how it looks from the side. It#39;s incredibly thin, except for the camera which slightly just out.非常的薄,除了摄像头有点突出外。 /201412/347821

The Use of Negative Numbers负数的使用The introduction of negative numbers is a great contribution to mathe-matics by ancient Chinese mathematicians.In Nine Chapters on the Mathematical Art(Jiuzhang Suanshu),negative numbers were used in the eighth chapter on solving systems of simultaneous equations. For instance, revenue num-bers are considered positive,while expense numbers are deemed negative;or sur-plus amounts are viewed as positive,while deficit amounts are seen as negative.In a problem calculating grains,the increased grains are considered positive,and the lost grains,negative. At the time,calculation was done by the method of Suan Chou(counting rods)Red rods were used to denote positive coefficients,and black ones to denote negative ones. Or in another case,the normal position of Su-an Chou denoted positive,while an inclined position denoted negative.负数的引进,是中国古代数学家对数学的一个巨大贡献。在《九章算术》的第八章“方程”中,就引人了负数解联立方程组。如负数出现在方程的系数和常数项中,把“卖(收人钱)”作为正,则“买(付出钱)”作为负,把“余钱”作为正,则“不足钱”作为负。在关于粮谷计算的问题中,是以益实(增加粮谷)为正,损失(减少粮谷)为负等。当时是用算筹来进行计算的,以红筹为正,黑筹为负;或将算筹首列作正、斜置作角。Rules for the calculation of signed numbers were also given in Jiuzhang Suanshu.According to the book, the deduction(or subtraction)of two numbers with the same sign(from another number) equals the deduction of the absolute values of the two numbers,while the deduction of two numbers with different signs equals the addition of the absolute values of the iwo numbers. Also一a positive number subtracted from zero gives a negative number,whereas a negative num-ber subtracted from zero gives a positive number. The addition of two numbers with different signs equals the deduction of their absolute values,while the addition of iwo numbers with the same sign equals the addition of their absolute values.Zero plus a positive number is still a positive number,and zero plus a negative number is still a negative number. Until the 17th century,it was the most complete depiction on the rules for adding and subtracting positive and negative一 numbers in the world.在《九章算术》中,除了引进正负数的概念外,还完整地记载了正负数的运算法则:同号两数相减,等于其绝对值相减;异号两数相减,等于其绝对值相加;零减正数得负数,零减负数得正数。异号两数相加,等于其绝对值相减;同号两数相加,等于其绝对值相加;零加正数得正数,零加负数得负数。直到公元17世纪以前,这还是正负数加减运算最完整的叙述。Negative numbers appeared very late in the West.Many noted mathemati-clans did not admit negative numbers,because they consider zero as“nothing”and could not understand that something could be even less than“nothing,”and so considered negative numbers“absurd.”It was only in the 17th century when Descartes invented the coordinate system,which gave a geometrical explanation and an actual meaning for negative numbers,that negative numbers began to be accepted gradually.在西方,负数出现得很晚。许多著名数学家一直不承认负数。他们把零看作“没有”,他们不能理解比“没有”还要“少”的现象,因而认为负数是“荒谬的”。直到17世纪,笛卡儿创立了坐标系,负数获得了几何解释和实际意义,才逐渐得到了公认。The introduction of negative numbers is an important contribution of Chinese mathematicians to world mathematics. With the introduction of negative numbers,the whole numbers and rational numbers became complete.负数的引进,是中国古代数学家贡献给世界数学的一份宝贵财富。负数概念引进后,整数集和有理数集就完整地形成了。 /201512/410705

With this mechanical friend, you#39;ll never have to drink alone!有了这个陪酒机器人,妈妈再也不担心我一个人喝闷酒了!Some creative visionaries harness the power of technology to help people work more efficiently or to stay connected with friends and family in different parts of the world. Eunchan Park, however, had a different goal in mind. The South Korean inventor wanted to put his robotics knowhow to use in making alcoholic beverages taste better.有些发明家利用技术帮助人们高效工作或与世界各地的亲朋好友保持联系。但是,韩国发明家朴恩惠却不这样想,他想利用自己掌握的机器人技术让一个人饮酒变得更有趣。And thus was born Park#39;s robotic drinking buddy, who#39;s appropriately named Drinky.因此朴恩惠的陪酒机器人就诞生了,他称其为Drinky。The inspiration for Drinky came during a dateless Christmas which Park spent with a bottle of soju (the traditional Korean alcohol called shochu in Japan). During his solo drinking session, Park decided, on a whim, to pour a second glass and place it in front of himself, as though he were drinking with a friend. He found that doing so improved not only the atmosphere in the room, but also how he perceived the soju#39;s flavor, and figured that even more benefits could be reaped with a robotic companion.Drinky的灵感来自于很久之前朴恩惠独饮烧酒(日本称这种韩式烧酒为Shochu)度过的一个圣诞节。独饮期间,朴恩惠心血来潮,决定再倒一杯酒放在他对面,如同在与一位朋友共饮一般。他发现这样做不仅让房间更有氛围,还有助于他更好地品酒。那时他就意识到陪酒机器人会是个很不错的点子。Drinky#39;s operation is as straightforward as his name. Simply pour him a drink and he#39;ll jovially clink glasses with you, before downing the liquid in a single manly gulp.Drinky的功用恰如其名。只要给他倒一杯酒,他就会高兴地与你碰杯,然后大口喝下去。Since no one likes drinking with someone who#39;s reactionless or otherwise morose, Drinky finishes off each shot by flashing a thumbs up as his cheeks flush with color.没有人会喜欢跟没有反应或闷闷不乐的人一起喝酒,所以Drinky每喝完一杯酒就会立起大拇指,双颊也会变红。Best of all, Drinky can hold his liquor, both figuratively and literally. Not only will he never become weepy or belligerent, every drink he takes is stored in the glass jar that makes up his body. The container is removable, giving you the option to drink that alcohol yourself later or pour it back into Drinky#39;s cup.最重要的是,Drinky有肚量能“容”酒。他不仅从不会哭哭啼啼或发酒疯,而且能把喝下去的酒都存在身体的玻璃罐里。这个玻璃罐是可拆卸的,你可以选择稍后自己喝掉或重新倒回Drinky的酒杯。Just be sure to keep an eye on the jar#39;s level as the night goes on. Its capacity isn#39;t limitless, and if you don#39;t empty it the booze will start dribbling down Drinky#39;s chin just like any human booze hound who#39;s had one too many.晚上喝酒时一定要留意Drinky的玻璃罐。它的容量有限,如果你不清空的话,酒将会顺着Drinky的下巴往下滴,就像人喝多了一样。 /201601/422609

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