The structural deformation induced by intense laser field of liquid nitrobenzene（NB） molecule,a typical molecule with restricting internal rotation,is tracked by time- and frequency-resolved coherent anti-Stokes.Ram...The structural deformation induced by intense laser field of liquid nitrobenzene（NB） molecule,a typical molecule with restricting internal rotation,is tracked by time- and frequency-resolved coherent anti-Stokes.Raman spectroscopy（CARS） technique with an intense pump laser.The CARS spectra of liquid NB show that the NO2 torsional mode couples with the NO2 symmetric stretching mode,and the NB molecule undergoes ultrafast structural deformation with a relaxation time of 265 fs.The frequency of NO2 torsional mode in liquid NB（42 cm-1） at room temperature is found from the sum and difference combination bands involving the NO2 symmetric stretching mode and torsional mode in time- and frequency-resolved CARS spectra.展开更多
With the rapid improvement of China’s economic level and the rapid development of e-commerce, the demand for logistics warehousing, which is one of the most important links in the logistics transportation system, has...With the rapid improvement of China’s economic level and the rapid development of e-commerce, the demand for logistics warehousing, which is one of the most important links in the logistics transportation system, has also greatly increased. The dispatching management system applied in the warehouse has a wide range of applications in the logistics storage system. Improving the operational efficiency of the dispatching management system can effectively improve the efficiency of the automated warehouse system and reduce the cost of logistics transportation. Therefore, this paper designs a set of dispatching systems with the tracking car as the control target and realizes the positioning and path planning functions of the tracking car in the system. At present, the tracking car can completely receive the commands sent by the system, accurately follow the established path. At the same time, the system software can also obtain the video images taken by the camera on the car and play them smoothly.展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.21173063 and 21203047)the Foundation of Heilongjiang Bayi Agricultural University,China(Grant No.XZR2014-16)+1 种基金NSAF(Grant No.U1330106)the Special Research Project of National Key Laboratory of Shock Wave and Detonation Physics,Institute of Fluid Physics,China Academy of Engineering Physics(Grant No.2012-S-07)
文摘The structural deformation induced by intense laser field of liquid nitrobenzene（NB） molecule,a typical molecule with restricting internal rotation,is tracked by time- and frequency-resolved coherent anti-Stokes.Raman spectroscopy（CARS） technique with an intense pump laser.The CARS spectra of liquid NB show that the NO2 torsional mode couples with the NO2 symmetric stretching mode,and the NB molecule undergoes ultrafast structural deformation with a relaxation time of 265 fs.The frequency of NO2 torsional mode in liquid NB（42 cm-1） at room temperature is found from the sum and difference combination bands involving the NO2 symmetric stretching mode and torsional mode in time- and frequency-resolved CARS spectra.
文摘With the rapid improvement of China’s economic level and the rapid development of e-commerce, the demand for logistics warehousing, which is one of the most important links in the logistics transportation system, has also greatly increased. The dispatching management system applied in the warehouse has a wide range of applications in the logistics storage system. Improving the operational efficiency of the dispatching management system can effectively improve the efficiency of the automated warehouse system and reduce the cost of logistics transportation. Therefore, this paper designs a set of dispatching systems with the tracking car as the control target and realizes the positioning and path planning functions of the tracking car in the system. At present, the tracking car can completely receive the commands sent by the system, accurately follow the established path. At the same time, the system software can also obtain the video images taken by the camera on the car and play them smoothly.
