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| 1 | Nanocomposites of CsPbBr_(3) perovskite quantum dots embedded in Gd_(2)O_(3):Eu^(3+) hollow spheres for LEDs application显示文摘Gd_(2)O_(3):Eu^(3+)@CsPbBr_(3) quantum dots(QDs)mesoporous hollow nanocomposites with good luminescent properties and high stability were built.Among which,the hollow Gd_(2)O_(3):Eu^(3+)spheres and CsPbBr_(3) QDs were prepared by urea homogeneous precipitation and hot-injection method,respectively.Finally,the Gd_(2)O_(3):Eu^(3+)@CsPbBr_(3) QDs shell-core compounds were constructed through mechanical stirring.The structure,morphology,stability and luminescent properties were studied by Fourier transform infrared spectroscopy(FT-IR),differential scanning calorimetry/thermogravity(DSC/TG),X-ray diffraction(XRD),field-emission scanning electron microscopy(FE-SEM),transmission electron microscopy(TEM),photoluminescence excitation/photoluminescence(PLE/PL)and life decay tools.Compared to the original CsPbBr_(3) QDs,Gd_(2)O_(3):Eu^(3+)@CsPbBr_(3) QDs display better photostability,thermal stability and current stability.The resulting Gd_(2)O_(3):Eu^(3+)@CsPbBr_(3) QDs composite exhibits good yellow emission.The Gd_(2)O_(3):Eu^(3+)@CsPbBr_(3) QDs mixed silicone resin was directly coated on the blue LED chip,then the w-LED device with the color coordinate of(0.31,0.32)was successfully assembled.The Gd_(2) O_(3):Eu^(3+)@CsPbBr_(3) QDs compounds with excellent luminescent properties and stability are expected to be widely used in lighting and display areas. | Gang Wang Shangjun Yu Bin Liu Zongming Liu Jinkai Li | 2022 | Journal of Rare Earths2022，40，10： | 3 |
| 2 | Effects of super-absorbent polymer on dry matter accumulation and nutrient uptake of Pinus pinaster container seedlings显示文摘 | Liu Fangchun Ma Hailin Xing Shangjun | 2013 | Journal of Forest Research2013，18，： | 1 |
| 3 | Optimal Design and Con-tact Analysis for Planetary Roller Screw显示文摘 | Ma Shangjun Liu Geng Zhou Jianxing | 2011 | AppliedMechanics andMate-rials2011，86，： | 1 |
| 4 | Variation of coal permeability under dehydrating and heating:a case study of ulanqab lignite for underground coal ggasification显示文摘 | Liu Shuqin Zhang Shangjun Chen Feng | 2014 | Energy&Fuel2014，28，11： | 1 |
| 5 | Ultrasound-assisted co-precipitation synthesis of mesoporous Co_(3)O_(4)–CeO_(2)composite oxides for highly selective catalytic oxidation of cyclohexane显示文摘The one-step highly selective oxidation of cyclohexane into cyclohexanone and cyclohexanol as the essential intermediates of nylon-6 and nylon-66 is considerably challenging.Therefore,an efficient and low-cost catalyst must be urgently developed to improve the efficiency of this process.In this study,a Co_(3)O_(4)–CeO2 composite oxide catalyst was successfully prepared through ultrasound-assisted co-precipitation.This catalyst exhibited a higher selectivity to KA-oil,which was benefited from the synergistic effects between Co^(3+))/Co^(2+))and Ce^(4+)/Ce^(3+)redox pairs,than bulk CeO2 and/or Co_(3)O_(4).Under the optimum reaction conditions,89.6%selectivity to KA-oil with a cyclohexane conversion of 5.8%was achieved over Co_(3)O_(4)–CeO2.Its catalytic performance remained unchanged after five runs.Using the synergistic effects between the redox pairs of different transition metals,this study provides a feasible strategy to design high-performance catalysts for the selective oxidation of alkanes. | Shangjun Fu Kuiyi You Zhenpan Chen Taobo Liu Qiong Wang Fangfang Zhao Qiuhong Ai Pingle Liu He’an Luo | 2022 | Frontiers of Chemical Science and Engineering2022，16，8： | 1 |
| 6 | A Frictional Heat Model of Planetary Roller Screw Mechanism Considering Load Distribution显示文摘 | MA Shangjun LIU Geng TONG Ruiting | 2015 | Mechanics Based Design of Structures and Machines2015，43，： | 1 |
| 7 | Optimal Design and Contact Analysis for Planetary Roller Screw 显示文摘 | Ma Shangjun Liu Geng Zhou Jianxing | 2011 | Applied Mechanics and Materials2011，86，： | 1 |
| 8 | A Research on the Air Permeability of High Polymer Materials Used to Produce Sports Clothing Fabrics显示文摘Composite fabrics based on Polytetrafluoroethylene(PTFE)polymer displays several notable properties.They are waterproof,windproof,permeable to moisture and thermally insulating at the same time.In the present study,PTFE fibers are used as raw material to make fiber membranes.The film is formed by crisscrossing interconnected fiber filaments and the related air permeability:tensile creep characteristics and other properties are tested.The results show that the pore size,thickness,and porosity of the film itself can affect the moisture permeability of the film.The water pressure resistance of the selected fabric is 8.5 kPa,and the moisture permeability is 7038 g/(m^(2)·24 h). | Jike Gao Fawei Li Shangjun Liu | 2023 | Fluid Dynamics & Materials Processing2023，19，5： | 0 |
| 9 | 排球女神惠若琪:永不言弃显示文摘笑容迷人、球技精湛的排球运动员惠若琪虽然年仅25.却早已是一名优秀的全能型选手。惠若琪是中国女排的队长,她在社交媒体上写满了鼓舞队员的话,比如:“天将降大任于斯人也,必先苦其心志,劳其筋骨,饿其体肤,空乏其身,行拂乱其所为,所以动心忍性,曾益其所不能。”此话源出《孟子》。 | Liu Shangjun 阿熊 刘进 肖芬 | 2016 | 英语广场2016，0，12： | 0 |
| 10 | Changing Patterns of Mortality in Diabetes Mellitus Among Older Adults—China,1987-2021显示文摘What is already known about this topic?Diabetes mellitus poses a significant public health concern for older adults in China,resulting in increased mortality rates.What is added by this report?This study investigates the evolving pattern of mortality associated with diabetes mellitus and analyzes the contributions of age,period,and cohort effects from 1987 to 2021.The results demonstrate a consistent rise in diabetes mellitus mortality over the last 30 years,notably in rural regions.What are the implications for public health practice?This research offers valuable insights to aid policymakers in developing targeted intervention strategies that address the specific needs of higher-risk populations,such as women,older adults,and individuals in rural areas. | Chen Chen Yihao Zhao Shangjun Liu Yu Wu Shan Yang Binbin Su Xiaoying Zheng | 2023 | China CDC weekly2023，5，50： | 0 |
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