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
Sonic Device The other day, Dr. Robert Smith, who is blind, took a remarkable stroll through the campus of the University of
Sonic Device The other day, Dr. Robert Smith, who is blind, took a remarkable stroll through the campus of the University of
admin
2012-09-10
77
问题
Sonic Device
The other day, Dr. Robert Smith, who is blind, took a remarkable stroll through the campus of the University of California at Santa Barbara. As Dr. Smith walked along the campus, places and impediments (障碍物) in his path seemed to call out their names to him, "library here, library here", "bench here, bench here".
Dr. Smith was testing a prototype(样机) navigation system for the blind that announced the surrounding objects through stereo headphones that were mounted to a computer in his back-pack (背包), creating virtual reality landscape(仿真景象). The information came not from some miniature radar but from the signals broadcast by the military’s network of global positioning satellites(全球定位卫星). One day, its developers hope, miniaturized (小型化)versions of this navigation device, which now weighs 28 pounds, will help the blind navigate unfamiliar neighborhoods.
"With this system you do not need to know a thing in advance about where you are going, " said Dr. Roberta Klatzky, a psychologist at Carnegie Mellon University who is working with Dr. Smith to develop the navigating device. Dr. Michael Oberdor of the National Eye Institute said, "A blind person could walk down the street and know not just that he was at 80th and Broadway, but what stores are around, and that Zabar’s delicatessen(熟食店) was up ahead. This navigation system tells you not just where there are obstacles, but your overall location geographically. " It lets blind users construct a mental map of new surroundings and learn their way around.
The navigation system uses signals from a computerized map to create a "virtual acoustic display(仿真声音显示)" This is a talking map in which large objects seem to announce themselves in the headphones with the precise timing and loudness that would be the case if the objects were actually making a sound. This allows the blind person to sense immediately his or her distance or direction, and use that information for guidance. While no one knows whether it is because blind people tend to develop a sharper sense of hearing. Those who have tried the system say that they quickly adapt to locating an object through the sounds. "One of the crucial features of this system is that it takes advantage of sensory psychophysics(感官心理物理学)-how the brain interprets signals from outside to make a map of your surroundings so you can navigate, " Dr. Oberdor said.
According to Dr. Oberdor, this device can only lead you to the Broadway and to buy food at Zabar’s shop.
选项
A、Right
B、Wrong
C、Not mentioned
答案
B
解析
本题给出的信息是错误的。第三段中虽然这两个地点都有提到,但是作者是想运用实际例子说明这个机器的精确度,这样用实际例子能达到生动的效果,并不是说这个机器只会将人们带到这两个地方。
转载请注明原文地址:https://kaotiyun.com/show/ehQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
BetterControlofTBSeenIfaFasterCureIsFoundTheWorldHealthOrganizationestimatesthataboutone-thirdofallpeop
IaskedLilywhethershewantedtogoswimmingwithmeandshenodded.
CoveringtheCostAllbyHimselfUniversitylifeisinnowaycheapinCanada.ItcostsPeterKemp,acomputersciencemajor
A.EffectsofastrokeB.AnnualcostofstrokeintheUSC.DefinitionanddescriptionofastrokeD.Breakthroughsintreat
Jackeventuallyovertookthelasttruck.
MedicalJournalsMedicaljournalsarepublicationsthatreportmedicalinformationtophysiciansandotherhealthprofessiona
TimothyStowofInverGroveHeights,Minn.workedhard,exercisedoftenandthoughthegotplentyofsleep.Yetheneverfeltre
A.havehealingeffectsB.beusedexternallyC.bepromotedD.helpthedisabledE.befurtherexploredF.suitdifferentpeopl
HewasobsessedwithAmericanhorrormovies.
Thechemicalisdeadlytoratsbutsafetocattle.
随机试题
甘肃是取甘州(今张掖)与肃州(今武威)二地的首字而成。()
革兰氏染色结果,菌体呈紫色的为革兰氏阴性菌(G-),红色者为革兰氏阳性菌(G+)。
老年性白内障的预防方法为
预防肺结核最关键、最有效的措施是
依据《中华人民共和国防沙治沙法》,在沙化土地范围内从事开发建设活动,必须依法提交环境影响报告;环境影响报告应当包括()。
某氯乙醇厂房专用的8KV配电站贴邻厂房设置,该厂房的下列防火防爆做法中,符合现行国家标准要求的是()。
导游员张某因私自转借导游证供他人使用被扣除6分,又因在导游中着装不整洁被扣除2分,年审时他将受到()。
请简述幼儿园艺术领域的教育目标。
由于常对象不能被更新,因此()。
Initially______expectation,Stellawasdismayedtolearnthathernewdutieswouldnotbeperformedinthegolden______ofa
最新回复
(
0
)