首页
登录
职称英语
Low speed bicycle crashes can badly injure—or even kill—children if they fal
Low speed bicycle crashes can badly injure—or even kill—children if they fal
游客
2024-02-23
1
管理
问题
Low speed bicycle crashes can badly injure—or even kill—children if they fall onto the ends of the handlebars. So a team of engineers is redesigning the humble handlebar in a bid to make it safer.
Kristy Arbogast, a bioengineer at the Children’s Hospital of Philadelphia in Pennsylvania, began the project with her colleagues after a study of serious abdominal injuries in children in the past 30 years showed that more than a third were caused by bicycle a accidents. "The task was to identify how the in juries occurred and come up with some countermeasures," she says.
By interviewing the children and their parents, Arbogast and her team were able to reconstruct many of the accidents and identified a common mechanism responsible for serious injuries. They discovered that most occur when children hit an obstacle at slow speed, causing them to topple over. To maintain their balance they turn the handlebars through 90 degrees—but their momentum forces them into the end of the handlebars. The bike then falls over and the other end of the handlebars hits the ground, ramming it into their abdomen.
The solution the group came up with is a handgrip fitted with a spring and damping system. The spring absorbs up to 50 per cent of the forces transmitted through the handlebars in an impact. The group hopes to commercialize the device, which should add only a few dollars to the cost of a bike. "But our task has been one of education because up until now, bicycle manufacturers were unaware of the problem, says Arbogast.
The team has also approached the US Consumer Product Safety Commission to try to persuade manufacturers to adopt the new design. A decision is expected later this year. [br] 0. What is the main idea of Paragraph 3?
选项
答案
How serious injuries occur.
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3476100.html
相关试题推荐
AsIseeit,pre-schoolchildrenwhoaretaughtathomebytheirparentsdoatl
CaliforniaStateLawrequiresthatallbicycleridersunderage18wearprot
CaliforniaStateLawrequiresthatallbicycleridersunderage18wearprot
CaliforniaStateLawrequiresthatallbicycleridersunderage18wearprot
CaliforniaStateLawrequiresthatallbicycleridersunderage18wearprot
CaliforniaStateLawrequiresthatallbicycleridersunderage18wearprot
CaliforniaStateLawrequiresthatallbicycleridersunderage18wearprot
CaliforniaStateLawrequiresthatallbicycleridersunderage18wearprot
ItisnotunusualforChinesechildrentogetmoneyfromtheirparents,gran
ItisnotunusualforChinesechildrentogetmoneyfromtheirparents,gran
随机试题
Labelplanbelow.Chooseyouranswersfromtheboxbelowandwritethel
______thehelpoftheirgroup,wewouldnothavesucceededintheinvestigation
Imaginingbeingaskedtospendtwelveorsoyearsofyourlifeinasocietyw
Thetypicalpre-industrialfamilynotonlyhadagoodmanychildren,butnum
下列可作为固体分散体载体的有A:CC-Na B:HPLC C:酒石酸 D:
59、接地线是防止在未停电的设备或线路上意外地出现电压而保护工作人员安全的重要工
国际开发机构在中国境内公开发行人民币债券应组成承销团,承销商限于在中国境内设立的
个人住房贷款的签约流程不包括()。A.填写合同 B.审核合同 C.签订
临床上,把患者对自己的精神疾病认识和判断能力称为A:观察力 B:理解力 C:
A.λ=1 B. C. D.
最新回复
(
0
)