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| 1 | Synthesis, structure and luminescent properties of yellow phosphor La3Si6N11 :Ce^3+ for high power white-LEDs显示文摘A series of high phase purity blue light excitable yellow-emitting La_(3-x)Si_6 N_(11):xCe^(3+) phosphors were synthesized by the high temperature solid state reactions method. The structure and luminescent properties were investigated. The phase structure was studied by means of X-ray diffraction, structures refinements and energy dispersive X-ray spectroscopy. The phosphors effectively excited by the light of450 nm and show intense yellow emission at 535 nm with FWHM of 115 nm corresponding to the5 d →~2 F_(5/2) and 5 d →~2 F_(7/2) transitions of Ce^(3+). In addition,the optimized La_(2.86)Si_6 N_(11):0.14 Ce^(3+) exhibits a weak thermal quenching, which remains 98.2% of the initial emission intensity when heated to 200 ℃,the thermal quenching properties exhibit a modest decline when the temperature returned to room temperature. The above results indicate that La_3 Si_6 N_(11):Ce^(3+) can be regarded as a high promising phosphor for applications in high power white-light LED. | Fu Du Weidong Zhuang Ronghui Liu Yuanhong Liu Wei Gao Xia Zhang Yuan Xue Hongrui Hao | 2017 | Journal of Rare Earths2017，35，11： | 8 |
| 2 | Research progress on train operation safety in Xinjiang railway under wind environment显示文摘Railway lines in the Xinjiang wind area face severe wind disasters year-round,which seriously affects the safety and economy of the railway in China.Therefore,the wind characteristics and statistics of wind-induced accidents along the Xinjiang railway lines are presented and the basic research route for evaluating the train running safety under crosswinds and effective measures to improve the windproof performances of trains are proposed,which are meaningful to deal with wind-induced train accidents.Based on this research route,a series of numerical simulations are conducted to evaluate train safety and the corresponding measures are provided.The results show the following.The running safety of the train under crosswinds mainly depends on the aerodynamic loads acting on the train.The relationships between the safe speed limit and train type,the load weight,the embankment height,the road cutting depth,the railway line curve parameters,the yaw angle and other factors are obtained.The critical wind-vehicle speed relationship,as well as the engineering speed limit value under different running conditions,are determined.Large values of the aerodynamic and dynamic indices mainly appear in special locations,such as near earth-embankment-type windbreak walls,shallow cuttings and the transition sections between various types of windbreak walls.Measures such as increasing the height of the earth-embankment-type windbreak walls,adding wind barriers with reasonable heights in shallow cuttings and optimizing the design of different types of transition sections are proposed to significantly improve the safe speed limits of trains under crosswinds. | Tanghong Liu Lei Wang Hongrui Gao Yutao Xia Zijian Guo Wenhui Li Hongkang Liu | 2022 | Transportation Safety and Environment2022，4，2： | 2 |
| 3 | Journal of China University of Mining & Technology显示文摘 | Ao Hongrui Jiang Hongyuan Xia Yuhong | 2004 | 33(4): 4532004，33，4： | 1 |
| 4 | Assessment of cadmium contamination in the sediments of Changjiang (Yangtze) River by reflectance spectroscopy显示文摘 | Xueqi XIA Jun CHEN Hongrui MA Junfeng JI | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 0 |
| 5 | Anti-inflammatory Activity of Phenolic Acids on HAECs Induced by TNF-α显示文摘[Objectives] To study the anti-inflammatory activity and mechanism of salvianolic acid A(Sal A), salvianolic acid C(Sal C), and rosmarinic acid(RA) on HAECs induced by TNF-α. [Methods] VE was used as a positive control and TNF-α induced human aortic endothelial cells(HAECs) were selected as the inflammation model cells. The levels of IL-6, MCP-1 were determined using ELISA. The mRNA levels of IL-6, MCP-1, ICAM-1, P-selectin and NF-κB were analyzed by quantitative RT-PCR. The protein expression of NF-κB was determined by western blot. The adhesion of U937 to HAECs was assessed by BCECF/AM labeling assay. Immunohistochemistry detection was used for ICAM-1 and P-selectin expression levels in TNF-induced HAECs, and DHE detection for the ROS production in HAECs induced by TNF-α. [Results] TNF-α-induced over-expressions of IL-6, MCP-1, NF-κB, ICAM-1 and P-selectin in HAECs were down-regulated by Sal A, Sal C and RA both in mRNA or protein levels, respectively. Meanwhile Sal A, Sal C and RA could significantly inhibit the production of ROS and U937 cells adhesion to HAECs. [Conclusions] Phenolic acids could inhibit TNF-α-induced inflammatory responses on HAECs and the mechanism might be related to inhibition of the production of ROS and blocking NF-κB signaling pathway. | Xiaoyu ZHANG Xianjing ZHENG Hongrui XIA Longru SUN | 2019 | Medicinal Plant2019，10，2： | 0 |
| 6 | Homojunction and ohmic contact coexisting carbon nitride for efficient photocatalytic hydrogen evolution显示文摘Carbon nitride(CN)has attracted intensive attention as a visible light photocatalyst,but the rapid recombination of photogenerated charge carriers limits its photocatalytic activity.Herein,we develop a new strategy to construct both homojunction and ohmic junction into CN via selectively introducing metallized CN(MCN),which leads to rapid separation and transfer of photogenerated charge carriers.The polymerization of urea in the presence of KOH creates CN homojunction with amino and cyano groups.The subsequent molten salt treatment induces a new type of cyano-terminated CN that can be converted to MCN through photodoping,forming homojunction and ohmic contact coexisting CN(HOCN).The formed HOCN photocatalyst exhibits a high photocatalytic H_(2)evolution rate of 18.5 mmol·g^(-1)·h^(-1)under visible light irradiation,45-fold higher than that of bulk CN.This strategy provides a new idea for designing ohmic contact between semiconductor and metal,and realizing efficient photocatalysis by improving charge separation and transfer. | Xiao Fang Lu Chen Hongrui Cheng Xiaoqiong Bian Wenhao Sun Kaining Ding Xinghe Xia Xin Chen Jiefang Zhu Yuanhui Zheng | 2023 | Nano Research2023，16，7： | 0 |
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