首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Many are aware of the tremendous waste of energy in our environment, but fail to take advantage of straightforward opportunities
Many are aware of the tremendous waste of energy in our environment, but fail to take advantage of straightforward opportunities
admin
2012-01-27
35
问题
Many are aware of the tremendous waste of energy in our environment, but fail to take advantage of straightforward opportunities to conserve that energy. For example, everyone knows that lights should be switched off when no one is in an office. Similarly, when employees are not using a meeting room, there is no need to regulate temperature.
Fortunately, one need not rely on human intervention to conserve energy. With the help of smart sensing and network technology, energy conservation processes such as turning off lights and adjusting temperature can be readily automated. Ultimately, this technology will enable consumers and plant managers to better identify wasteful energy use and institute procedures that lead to smarter and more efficient homes, buildings and industrial plants.
Until now, wires and cables for power and connectivity have limited the widespread adoption of sensor (传感器) networks by making them difficult and expensive to install and maintain. Battery-powered wireless networks can simplify installation and reduce cost. But their high power consumption and the corresponding need for regular battery replacement has made wireless networks difficult and costly to maintain. Nobody wants to replace hundreds or thousands of window sensor batteries in a large building on a regular basis.
The promise of wireless sensor networks can only be fully realized when the wiring for both the data communication and the power supply is eliminated. Doing so requires a true battery-free wireless solution, one that can utilize energy harvested directly from the environment.
To facilitate the widespread deployment of wireless sensor networks, GreenPeak has developed an ultra-low-power communication technology that can utilize environmental energy sources such as light, motion and vibration. This technology, employing on-board power management circuits and computer software to monitor energy harvesters and optimize (充分利用) the use of harvested energy, enables sensors to operate reliably in a battery-free environment.
Wireless sensor networks deployed in our offices and homes will have an enormous impact on our daily lives, helping to build a smarter world in which energy is recycled and fully utilized. These wireless platforms, equipped with advanced sensing capability, will enable us to better control our lives, homes and environment, creating a truly connected world that enables people worldwide to live in a more comfortable, safer, and cleaner environment.
Wireless sensor networks promise to______.
选项
A、further develop the sensing technology
B、turn motion into a major source of energy
C、improve the daily lives of people worldwide
D、bring businesses handsome profits in short time
答案
C
解析
末段首先提到无线传感器网络对我们的日常生活产生巨大的影响,帮助我们创建一个更智能的世界,随后进行了解释:这些无线平台能够让我们更好的控制我们的生活、家庭和环境,创建一个真正的互联世界,让全世界的人们能够生活在更舒适、更安全、更干净的环境中。由此可知,无线传感器网络能够提高全世界人们的日常生活质量,故答案为[C]。[A]和[D]在文中未提及,故排除。将motion转化为能源是GreenPeak研发的communication technology的作用,并不是无线传感器网络的目标,故排除[B]。
转载请注明原文地址:https://kaotiyun.com/show/eZy7777K
0
大学英语四级
相关试题推荐
Weakeyesightisatermthatisgenerallyusedtorefertonear-sightedeyes.Peoplewhoarenear-sightedcanseegoodat
Peopleappeartobeborntocompute.Thenumericalskillsofchildrendevelopsoearlythatitiseasytoimagineaninternalcl
A、Togoshopping.B、Todoresearchforherstory.C、Tomeetherprofessor.D、Totakeabreakfromherwork.B细节题。四个选项都是表示行为动作的不定
Abooklikethisisnevertheworkofasingleauthororevenasmallgroupofauthors;rathertherearemanypeopleandinstitu
Itseemsyoualwaysforget--yourreadingglasseswhenyouarerushingtowork,yourcoatwhenyouaregoingtothecleaners,you
Itseemsyoualwaysforget--yourreadingglasseswhenyouarerushingtowork,yourcoatwhenyouaregoingtothecleaners,you
ThoughtsofsuicidehauntedAnitaRutnamlongbeforeshearrivedatSyracuseUniversity.Shehadahistoryofmentalillnessand
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanyasin1960s.Duringthe1960seight【C1】______newoneswe
TherearemorethanfortyuniversitiesinBritain--nearlytwiceasmanyasin1960s.Duringthe1960seight【C1】______newoneswe
Dependingonwhatyouarelookingfor.youhavetojudgeforyourself____________(这些资料对你来说有多大的相关性).
随机试题
ReachingnewpeaksofpopularityinNorthAmericaisIcebergWaterwhichisharvestedfromicebergsoffthecoastofNewfoundlan
患者,男,56岁。确诊肝癌半年,近日胁肋疼痛加剧,胁下肿块巨大,拒按,入夜更甚,脘腹胀满,食欲缺乏,大便溏,倦怠乏力,舌质紫暗有瘀点,脉沉涩。问题1:本例最可能的病证是
A、IgGB、IgMC、IgDD、IgEE、IgA再次免疫应答产生的主要抗体是
某人工挖孔嵌岩灌注桩桩长为18m,其低应变反射波动力测试曲线如图17.1.1所示。试问:该桩的桩身波速值c(m/s)最接近下列()项。
根据行政复议法律制度的规定,下列关于行政复议的表述中,正确的有()。
甲公司(上市公司)是一家以家电生产为主业的大型国有企业,总资产100亿元,净资产36亿元。最近3年净资产收益率平均超过了10%,经营现金流入持续保持较高水平。甲公司董事会为开拓新的业务增长点,分散经营风险,获得更多收益,决定从留存收益中安排2亿元实施投资。
“弟子不必不如师,师不必贤于弟子,闻道有先后,术业有专攻,如是而已”,这种观点给当今教育的启示是()。
意大利地处欧亚大陆和非洲大陆板块的挤压带上,因此境内活火山较多。频繁爆发的火山给意大利人带来了丰厚的_________可作为优质胶凝材料的火山灰。这种_________的自然条件使古罗马人利用火山灰发明了自然混凝土。填入划横线部分最恰当的一项是:
力颖电脑软件有限责任公司由张某、李某等10人各投资20万元于2006年设立,公司章程对分红、增资等采用了公司法的基本规定,未作特别约定。李某实际只出资10万元,尚拖欠10万元出资未缴。其余股东均已按期足额缴纳出资。2008年底分红时,张某提出李某一直未按公
假设A公司当前的股票价格为每股350元,标的资产为该股票的一年到期且执行价格为150元的欧式看涨期权价格为280元,而有同样标的资产,到期时间和执行价格的欧式看跌期权价格为69.53元。请根据上述信息估计出一年无风险零息债券利率。
最新回复
(
0
)