搜索结果: 1-15 共查到“工学 CARS”相关记录29条 . 查询时间(0.062 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...
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...
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...
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...
可溶性固形物（ＳＳＣ）是脐橙重要内部品质之一。采用ＱｕａｌｉｔｙＳｐｅｃ型光谱仪在３５０～１０００ｎｍ波段范围采集脐橙的可见／近红外漫透射光谱，采用ＣＡＲＳ（ｃｏｍｐｅｔｉｔｉｖｅａｄａｐｔｉｖｅｒｅｗｅｉｇｈｔｅｄｓａｍｐｌｉｎｇ）变量选择方法筛选出与脐橙ＳＳＣ相关的重要变量，并与无信息变量消除（ＵＶＥ）及连续投影算法（ＳＰＡ）比较。最后，对选择的３８个重要波长变量应用偏最小二乘（ＰＬＳ）回归建...
利用CARS技术研究激发态Rb2和H2的碰撞转移
激光光谱 能量转移 CARS谱 能量配置
2011/5/16
利用相干反斯托克斯拉曼光谱(coherent anti-stokes Raman spectroscopy，CARS)探测技术，研究了激发态Rb2与H2间的电子-振转能级的碰撞转移。扫描CARS谱确认了H2分子仅在ν=1, J=1,2及ν=2, J=0,1,2能级上有布居，用n1，n2，n3，n4，n5分别表示(2,0)，(2,1)，(2,2)，(1,1)及(1,2)上的粒子数密度。从CARS线的...