搜索结果: 1-15 共查到“Cars”相关记录33条 . 查询时间(0.125 秒)
一种宽带CARS探测1Δ氧装置及其使用方法，包含一个脉冲激光器和宽带染料激光器，脉冲激光器输出的泵浦激光经分束镜后一部分入射到染料激光器产生宽带染料激光，另一部分泵浦激光经全反镜和二相色镜后与宽带染料激光合束，随后经光腔透光孔聚焦在光腔内部，在光腔内发生四波混频产生相干反斯托克斯（CARS）光，CARS光经低通滤波片后由波长分析仪接收采集。该装置采用宽带染料激光器，可同时得到基态氧和delta氧的...
As automobile electrification speeds up, the world faces an overwhelming need for critical metals and minerals to make atmosphere-saving electric vehicles possible.
An autonomous vehicle is able to?navigate city streets and other less-busy environments by recognizing pedestrians,?other vehicles and potential obstacles through?artificial intelligence. This is achi...
As the world struggles to improve the efficiency of cars and other vehicles in order to curb greenhouse gas emissions and improve the range of electric vehicles, the search is on for ever-lighter mate...
The climate impact of wild pigs greater than a million cars, study finds
climate pig carbon emission ecosystem
2021/8/3
By uprooting carbon trapped in soil, wild pigs are releasing around 4.9 million metric tonnes of carbon dioxide annually across the globe, the equivalent of 1.1 million cars, according to new research...
Researchers look under the road to aid self-driving cars（图）
Researchers road aid self-driving cars
2020/3/6
Car companies and researchers have been feverishly working to improve the technologies behind self-driving cars. But so far, even the most high-tech vehicles still fail when it comes to safely navigat...
2017 自驾车机器人和车辆技术研讨会（Workshop on Robotics and Vehicular Technologies for Self-driving cars）
2017 自驾车 机器人 车辆技术 研讨会
2017/5/22
The rising trend of self-driving cars has pushed the envelop for the state of the art vehicular technologies and has evolved several day to day applications. This evolution required better sensing har...
Researchers find vulnerabilities in cars connected to smartphones
Researchers vulnerabilities cars connected smartphones
2016/9/12
Many of today’s automobiles leave the factory with secret passengers: prototype software features that are disabled but that can be unlocked by clever drivers.
In what is believed to be the first com...
Infants constantly explore their environments, toddling and crawling around while at the same time laying the cognitive foundation that they'll use for learning later in life. But how can parents and ...
Making cars of the future stronger,using less energy
Making cars the future stronger less energy
2015/11/12
Engineers at The Ohio State University have developed a new welding technique that consumes 80 percent less energy than a common welding technique, yet creates bonds that are 50 percent stronger.The n...
Getting Cars Off the Road: The Cost-Effectivemess of an Episodic Pollution Control Program
Cost-Effectivemess pollution
2015/9/18
While such major air pollutants as sulfur dioxide and particulate matter are substantially under
control, many areas of the United States remain in non-attainment of the ground-level ozone
standard....
Getting Cars Off the Road: The Cost-Effectiveness of an Episodic Pollution Control Program
Ground-level ozone Episodic pollution control schemes
2015/9/18
Ground-level ozone remains a serious problem in the United States. Because ozone
non-attainment is a summer problem, episodic rather than continuous controls of ozone
precursors are possible. We eva...
For decades, researchers in artificial intelligence, or AI, worked on specialized problems, developing theoretical concepts and workable algorithms for various aspects of the field. Computer vision, p...
同步荧光光谱结合CARS变量优选预测猪肉中四环素残留含量
同步荧光光谱 CARS变量优选方法 支持向量回归 四环素 猪肉
2014/3/6
为实现快速检测猪肉中四环素残留含量，采用同步荧光法结合竞争适应重加权采样 (CARS)变量优选建立了猪肉中四环素残留含量的支持向量回归(SVR) 预测模型。从样本的三维同步荧光光谱中确定了最佳波长差为65nm，采用CARS方法从中挑选出与四环素相关的特征波长变量，并与连续投影算法(SPA)及遗传算法(GA)比较。最后，对优选出的16个波长变量应用SVR算法建立猪肉中四环素含量的预测模型。经过分析发...
Why people use their cars while the built environment imposes cycling
perceptions (mis)match built environment mode choice Belgium
2013/11/21
Residing in a high-density, diverse, and accessible neighborhood tends to be associated with less car use, more public transport, and more cycling and walking. However, this does not hold for all peop...