SSS 2011-08-30
时间：2018-12-24 作者：英语课 分类：Scientific American(八)月
英语课
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.
Smart phones can provide music, movie times, bus schedules. They can even make phone calls! And now, they might help cut down fuel use while driving. That is, if enough are used in a system called SignalGuru developed by researchers at MIT and Princeton.
A network of smartphones mounted on vehicle dashboards captures and transmits images of traffic signals. The SignalGuru software then analyzes 1 the data to predict traffic signal patterns. If the light ahead is red, the driver is told the optimal 2 speed to avoid stopping and idling. Or told to make a slight route change that avoids a stop. Because idling and accelerating significantly increase fuel consumption.
The system was tested in Cambridge, Massachusetts, where traffic lights are on a set pattern. And in Singapore, where signals respond to traffic flow. And drivers slashed 3 their fuel use by about 20 percent on average. The study won a best-paper award at the Association for Computing 4 Machinery's MobiSys Conference.
The researchers say the platform could work for a variety of driving tips—prices at gas stations, or parking availability. And a bonus: with the phone mounted on the dashboard, you can't text and drive.
Thanks for the minute. For Scientific American's 60-Second Science, I'm Cynthia Graber.
1 analyzes
v.分析( analyze的第三人称单数 )；分解；解释；对…进行心理分析
- This approach analyzes management by studying experience usually through cases. 这个学派通常从实例获得经验，用以分析管理。 来自辞典例句
- The econometrician analyzes statistical data. 经济计量学者要分析统计材料。 来自辞典例句
2 optimal
adj.最适宜的；最理想的；最令人满意的
- What is the optimal mix of private and public property rights in natural resources?私人和国家的自然资源产权的最适宜的组合是什么？
- Optimal path planning is a key link for the sailing contest.帆船最优行驶路径规划是帆船比赛取胜的关键环节。