首页
登录
职称英语
The wearable antennas may have potential application in many areas. According to
The wearable antennas may have potential application in many areas. According to
游客
2023-12-29
74
管理
问题
The wearable antennas may have potential application in many areas. According to the speaker, which of the following is NOT one of them? [br]
Humans may become walking antennas for remote monitoring and mobile communications — with the help of a recent research to produce antennas integrated into clothing.
Still under development, the wearable antennas have potential application in biomedical monitoring, sports analysis, military and emergency communications.
The antennas can be incorporated into clothing using computerized embroidery into conductive fabric. A range of different shaped and sized antennas can be produced using altered patterns in the embroidery.
Wearable electronic systems for a range of communications applications have grown exponentially over the last few years. But the problem is these devices need very efficient antennas to communicate with the data receiver and to power the sensors being used — especially with radio frequency identification (RFTD)systems where the radiowave has to power the whole system.
Another issue is that the human body does not make a good environment for our antenna. We are a container of saltwater from an electromagnetic point of view; we absorb and change the characteristic of the signal, rather than transmitting it efficiently.
The solution being developed is a T-shirt made of conductive metallised fabric which is low-cost, flexible and lightweight. It doesn’t deteriorate easily and is washable, with the antenna embroidered onto the textile.
The difficulty of incorporating the electronics has been overcome with using snap-on buttons which form a connection between the textile antenna and the sensor device. These can easily be removed for washing.
The electronics can’t be directly integrated into the T-shirt because they would be uncomfortable to wear and aren’t water-proof. A recent research finding has shown that these readily available snap-on buttons used commonly on clothing make very reliable connections between the antenna and the electronics.
选项
A、Because the human body is not efficient enough to power the whole electronic system.
B、Because the human body is a container of saltwater, which can not transmit the signal efficiently.
C、Because the human body can not absorb and change the characteristic of the signal efficiently.
D、Because the human body feels uncomfortable to wear antennas.
答案
B
解析
根据原文“We are a container of saltwater from an electromagnetic point of view:we absorb and change the characteristic of the signal,rather than transmitting it efficiently.”,比较选项,可以确定答案是B。
转载请注明原文地址:https://tihaiku.com/zcyy/3314368.html
相关试题推荐
Whichofthefollowingstatementsistrueaccordingtowhatyouhaveheard?[br]
Whichofthefollowingstatementsistrueaccordingtowhatyouhaveheard?[br]
Whichofthefollowingstatementsistrueaccordingtowhatyouhaveheard?[br]
Whichofthefollowingstatementsistrueaccordingtowhatyouhaveheard?[br]
Whichofthefollowingstatementsistrueaccordingtowhatyouhaveheard?[br]
Whichofthefollowingstatementsistrueaccordingtowhatyouhaveheard?[ori
Whichofthefollowingistrueaccordingtothespeaker?[br][originaltext]Joe
Whichofthefollowingistrueaccordingtothespeaker?[br][originaltext]Joe
Accordingtothespeaker,whatchangeswilltakeplaceaboutpersonalcomputers?
Accordingtothespeaker,whatchangeswilltakeplaceaboutpersonalcomputers?
随机试题
A、TheysymbolizedarelianceonironythatwastypicalnotonlyofPre-Raphaelit
"ResourcesandIndustrialisminCanada"→Whilethemuch-antici
常用的虚拟存储器由()两级存储器组成,其中辅存是大容量的磁表面存储器。A.主存-
研究者通过搜集和分析研究对象的日常教育经历和体验,在解构并重构个体教有故事的过程
关于UCITS基金的申购与赎回价格,规定应至少( )公布两次。A.一周 B.
按照《证券公司私募投资基金子公司管理规范》的规定,证券公司设立私募基金子公司,应
沙保弱培养基常用于哪种微生物的培养A.病毒 B.细菌 C.真菌 D.螺旋体
下列有关人民法院审理行政案件的说法正确的有:()A.人民法院审理国际贸易行
人们运用语言交流思想,进行交际的过程叫()。(2008-11)A:言语 B:内
水压高、水量大并具有冷却、窒熄、乳化、稀释作用,不仅用于灭火还可控制火势,主要用
最新回复
(
0
)