Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Yanguang Qin"'
Publikováno v:
Advances in Mechanical Engineering, Vol 5 (2013)
Driver sleepiness is a hazard state, which can easily lead to traffic accidents. To detect driver sleepiness in real time, a novel driver sleepiness detection system using support vector machine (SVM) based on eye movements is proposed. Eye movements
Externí odkaz:
https://doaj.org/article/a17ab9b8f3d04df5b397dbab1a51f2c2
Autor:
Chang-Kui Duan, Hai Guo, Yanguang Qin, Siqi Lu, Min Yin, Yonghu Chen, Fangfang Hu, Xiantao Wei, Xinyue Li, Jiangkun Cao
Publikováno v:
Journal of Alloys and Compounds. 722:669-675
Novel self-crystallized transparent Na 5 Yb 9 F 32 : Er 3+ glass-ceramics (GCs) were successfully elaborated through high temperature melt-quenching route for the first time. X-ray diffraction (XRD), transmission electron microscopy (TEM), selected-a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1100b9922dcaf539d3809f8e07a47d59
https://doi.org/10.1016/j.jallcom.2017.06.171
https://doi.org/10.1016/j.jallcom.2017.06.171
Publikováno v:
Journal of Materials Science. 52:11592-11597
In this paper, Bi3+- and Eu3+-co-doped ScVO4 had been investigated as an alternative red-emitting phosphor under near-ultraviolet excitation. Structural and spectroscopic characterizations were carried out. The results show that the samples can effic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2442551a878a4d710b79293c63468a76
https://doi.org/10.1007/s10853-017-1329-6
https://doi.org/10.1007/s10853-017-1329-6
Publikováno v:
Physical Chemistry Chemical Physics. 19:12473-12479
Rare-earth doped CaIn2O4 phosphors have been widely investigated due to their excellent luminescent property, but the site occupation of rare-earth ions in CaIn2O4 is not very clear and needs to be clarified. Using Eu3+ as a fluorescence probe, such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d912ceace2215b1dd375728f2bbd857
https://doi.org/10.1039/c7cp01938f
https://doi.org/10.1039/c7cp01938f
Autor:
Xiantao Wei, Shaoshuai Zhou, Yonghu Chen, Fengfeng Chi, Chang-Kui Duan, Yanguang Qin, Min Yin
Publikováno v:
Current Applied Physics. 17:24-30
In order to clarify the site occupancy of rare-earth ions in rare-earth doped perovskite materials, the un-doped pure CaTiO3 and Eu3+-doped CaTiO3 samples with a series of Ca/Ti ratio were synthesized via high-temperature solid-state reaction method.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8eb5278bdb001f878c1ffbbe953932a
https://doi.org/10.1016/j.cap.2016.10.018
https://doi.org/10.1016/j.cap.2016.10.018
Autor:
Shaoshuai Zhou, Sha Jiang, Fangfang Hu, Chang-Kui Duan, Yonghu Chen, Yanguang Qin, Xinyue Li, Xiantao Wei, Min Yin
Publikováno v:
Journal of Alloys and Compounds. 674:162-167
Tb 3+ and Yb 3+ ions co-doped transparent phosphate glass-ceramics containing monoclinic GdPO 4 nanocrystals were successfully synthesized using a conventional high temperature melting quenching method in air atmosphere. The structure and morphology
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b104443e6de8b7725a9a8971ffba2f1e
https://doi.org/10.1016/j.jallcom.2016.03.040
https://doi.org/10.1016/j.jallcom.2016.03.040
Autor:
Xiaotao Wei, Yonghu Chen, Fangfang Hu, Yanguang Qin, Lu Zhao, Xinyue Li, Mingbin Dong, Chang-Kui Duan, Min Yin
Publikováno v:
Ceramics International. 42:6094-6099
Dy 3+ /Tb 3+ codoped CaMoO 4 phosphors were synthesized by a simple sol–gel method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence spectroscopy. The energy transfer process of Dy 3+ →Tb 3+ wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a8bdf9354b73ac02d090cf7bf96aad2
https://doi.org/10.1016/j.ceramint.2015.12.167
https://doi.org/10.1016/j.ceramint.2015.12.167
Publikováno v:
Journal of Nanoscience and Nanotechnology. 16:3873-3876
The site-selective spectra and decay curves at 20 K of Eu3+ ions doped KGd2F7 were measured to study the local environment of the Eu3+ sites. The experimental results show that Eu3+ ions occupy three types of sites in the KGd2F7 host. And Eu3+ ions i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3db4f0e8eea6418c139a9d5b49bb257
https://doi.org/10.1166/jnn.2016.11811
https://doi.org/10.1166/jnn.2016.11811
Autor:
Chang-Kui Duan, Yonghu Chen, Xinyue Li, Yanguang Qin, Shaoshuai Zhou, Min Yin, Xiantao Wei, Fangfang Hu
Publikováno v:
Journal of Alloys and Compounds. 660:226-230
The past decades has witnessed the blossom of upconversion, which is based on the ground state absorption (GSA) and excited state absorption (ESA) processes. Herein, we propose a brief strategy based on two-photon process with two simultaneous excita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3b2f19d36605fe06090ca64275fb963
https://doi.org/10.1016/j.jallcom.2015.11.135
https://doi.org/10.1016/j.jallcom.2015.11.135
Publikováno v:
Journal of Alloys and Compounds. 657:353-357
Lanthanide-based luminescence thermometry, superior to conventional invasive thermometers, has evoked considerable interest in the field of temperature evaluation for practical applications. Herein, the emission rise time of the 5D0 level in Eu3+ dop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab97b07d0961719182c840ab6001dca6
https://doi.org/10.1016/j.jallcom.2015.10.101
https://doi.org/10.1016/j.jallcom.2015.10.101