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
Surgeons will soon be able to enter the eye to carry out operations—at least in a virtual sense. Techniques derived from virtual
Surgeons will soon be able to enter the eye to carry out operations—at least in a virtual sense. Techniques derived from virtual
admin
2010-06-30
90
问题
Surgeons will soon be able to enter the eye to carry out operations—at least in a virtual sense. Techniques derived from virtual reality the computer system that immerses operations in an artificial computer-generated world—will allow surgeons to feel as if he could see the in side of the eye during an operation, creating the illusion that they are actually there.
Researchers at the Biorobotics (生物机械技术)Laboratory of McGill University in Montreal are building a robot , known as Micro Surgery robot-1(MSR- I for short), that will perform delicate operations under the control of a human surgeon. The robot is specifically designed for performing eye surgery but could have other applications, such as the removal of brain tumors. The system could also be used to allow surgeons and their students to practise simulated surgery that feel like the real thing- without the real consequences for the patients.
During the operations, the surgeon manipulates a set of control known as the master. These are connected through a high- performance computer to the robot. Both the master and the robot have two limbs, When the surgeon moves the masters’ limbs, the robots limbs move in exactly the same way, except that the movements can be scaled down as much as a thousand times. This will eliminate hand tremor and poor accuracy and thus reduce the damage to the eye that can occur with present microsurgery techniques. Each of the robots limbs has a minimum movement of one micrometer---more than one hundred times the precision of the human hand.
The computer also creates a three - dimensional robot’ s eye view of the inside of the eye that the surgeon can see by wearing a virtual reality helmet (虚拟现实头盔) that has a small lens in front of each eye.
To provide the surgeon with such a realistic experience, MSR-I must be able to move rapidly, but this requires extremely fast computing. To handle the computational demands of instant interaction, the McGill team is constructing its own parallel-processing computer., It is al so studying areas such as muscle mechanism, artificial intelligence and optics, and has a already built another micro robot MR- I, capable of manipulating a single living cell.
Although commercial applications of the new system are not expected for several years, its basic mechanical components will be ready for testing in a few months, "The day when micro robots will be able to perform surgery without human intervention is many years away," says Hunter, "in the meantime , a system such as MRS-I is a necessary precursor."
The so-called "virtual reality "mentioned in this passage is actually.
选项
A、a surgical tool used for operations
B、a computer system used to produce life- like illusions
C、a new kind of applications in a visual technology.D a way to carry out operations in a visual sense
答案
解析
转载请注明原文地址:https://kaotiyun.com/show/dQJd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Onedayagroupofpeoplewalkedintoacaveandpaintedhandprintsalloverthewalls.Tenthousandyearslater,archaeologists
Onedayagroupofpeoplewalkedintoacaveandpaintedhandprintsalloverthewalls.Tenthousandyearslater,archaeologists
YouwillhearaninterviewwithStevenCasey,onhumanfactorsindesign.Asyoulisten,answerthequestionsorcompletetheno
Youhavereadanarticleinamagazinewhichstates,"TheInternethasnowbecomeanimportantlearningtoolforchildren,expo
In1935,MaryKaygotmarriedforthefirsttime.MaryKaystoppedrunninghercompanyin2000.
Wehaveescapedthebattlefieldandnowcan,withmodemguidancesystemonmissies,touchvirtuallyeverysquareyardoftheea
Ramoswasbrilliant,handsome,wealthy,andoneofRiodeJaneiro’s(里约热内卢的)beautifulpeople.Atagethirty-six,hewasaprom
WhenhediesinAprilof1983,Dr.JoelHildebrandwas101yearsold,whohadbeenmarriedforseventy-fiveyears,andhadtaugh
Amultinationalcorporationisacorporateenterprise,whichthoughheadquarteredinonecountry,conductsitsoperationsthroug
AmericaTheBeautiful,isasongalmosteveryAmericancansing.Andwhileit’struethatTheStarSpangledBannerhasbeenAmeri
随机试题
以下不属于计算机网络的功能的是()
老年人上腹痛伴呕血,厌食及消瘦最应警惕
下列食品中维生素B2含量最少的是
据报载,某省的人大常委会对司法机关提出明确要求,不要把领导批示作为办案依据。你认为下列有关这一报道的议论,哪一选项是错误的?()
金融市场可以按()的期限分类。
(2018年)语文课上小希总是喜欢和周围的同学交头接耳,不断地做小动作,李老师多次提醒,制止他,但无济于事。时间长了,李老师开始责骂、讥讽、奚落他,有时也罚他站着听课。以至于小希越来越不喜欢上语文课,并产生厌学情绪,小希的家长找李老师询问原因,李老师说“我
在数据结构中,从逻辑上可以把数据结构分成
使用索引的主要目的是( )。
Aspecial______.
Secondhandsmokeisaccountablefor42,000deathsannuallytononsmokersintheUnitedStates,includingnearly900infants,acc
最新回复
(
0
)