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
23
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
ThefounderoftheAmericandramais_____.A、ArthurMillerB、EugeneO’NeillC、T
[originaltext]M:Hey,Karen.Lookslikeyougotsomesunthisweekend.W:Yeah
施工场地平整时,为了满足排除地面水的要求,地表面应留设不小于()的坡度。A.
向不同的会计资料使用者提供的财务会计报告,其编制依据应一致。()
教师通过协调课堂内的各种人际关系而有效实现预定教学目标的过程为( )。
合同解释的原则中,()又称文义解释原则。A:目的解释原则B:客观解释原则C
马克思主义之所以具有与时俱进的品格是因为( ) A.它是一个开放的体系 B
抗疟药物宜于A.饭后服 B.饭前服 C.空腹服 D.睡前服 E.症状发作
发包方只给出发包工程的有关分部分项工程以及工程范围,承包方填报相应的价格,最后按
(2019年真题)安全生产行政法规一般专指国务院制定的有关安全生产规范性文件,下
最新回复
(
0
)