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| 1 | Enhanced leaching process of a low-grade weathered crust elution-deposited rare earth ore with carboxymethyl sesbania gum显示文摘 | Jun Tian Jingqun Yin Xuekun Tang Ji Chen Xianping Luo Guohua Rao | 2013 | Hydrometallurgy2013，，： | 1 |
| 2 | Enhanced leachability of a lean weathered crust elution-deposited rare-earth ore:effects of sesbania gum filter-aid reagent 显示文摘 | Tian Jun Tang Xuekun Yin Jingqun | 2013 | Metallurgical and Materials2013，44，5： | 1 |
| 3 | Process optimization on leaching of a lean weathered crust elution-deposited rare earth ores显示文摘 | Jun Tian Xuekun Tang Jingqun Yin Xianping Luo Guohua Rao Mintao Jiang | 2013 | International Journal of Mineral Processing2013，，： | 1 |
| 4 | Effect of Andalusite Aggregate Pre-fired at Different Temperatures on Properties of Al2O3-SiC-C Castables显示文摘This work investigates the effect of the pre-firing temperature of andalusite aggregate(5-3 mm)on the conversion of andalusite,the volume stability,the thermal shock resistance and the slag resistance of Al2O3-SiC-C castables.The results show that the volume stability and the thermal shock resistance of the castables could be adjusted at different pre-firing temperatures of andalusite aggregates.There was no noticeable difference in the slag resistance between the specimens without andalusite and those with andalusite aggregate pre-fired at different temperatures. | TIAN Xuekun CHEN Anbang LI Na LIAO Guihua DING Dafei YE Guotian | 2019 | China's Refractories2019，28，2： | 1 |
| 5 | Preparation of ZrB_(2)-ZrO_(2)-SiC Composite Powder by Carbothermal Reduction from Zircon显示文摘Using zircon,boric acid and carbon black as starting materials,ZrB_(2)-ZrO_(2)-SiC composite powder was synthesized by calcining at 1500℃in flowing argon atmosphere.The effects of the soaking time(3,6 and 9 h)and the addition of additive AlF_(3)(0,0.5%,1.0%,1.5%,2.0%and 2.5%,by mass)on the phase composition and the microstructure of the synthesized products were investigated.The results show that:(1)ZrB_(2)-ZrO_(2)-SiC composite powder can be synthesized by carbothermal reduction at 1500℃in flowing argon atmosphere;ZrB_(2) and ZrO_(2) are granular-like,and SiC crystals are fiberous;(2)with the soaking time increasing,the amount of ZrB_(2) increases,the amounts of m-ZrO_(2) and SiC decrease,and the total amount of non-oxides ZrB_(2),SiC and ZrC gradually increases;the optimal soaking time is 3 h;(3)compared with the sample without AlF_(3),the sample with 0.5% AlF_(3) has decreased m-ZrO_(2)amount,noticeably increased ZrB_(2) amount but decreased SiC amount;however,when the addition of AlF_(3) increases from 0.5%to 2.5%,the m-ZrO_(2) amount increases,the ZrB_(2)amount decreases,and the SiC amount changes slightly;the optimum AlF_(3)addition is 0.5%. | TIAN Xuekun ZHOU Chaojie ZHANG Lei ZHAO Fei JIA Quanli LIU Xinhong ZHONG Xiangchong | 2023 | China's Refractories2023，32，1： | 0 |
| 6 | Theoretical Calculations of the pKa Values of 1-Aryl-4-prooylpiperazine Drugs in Aqueous Solution显示文摘 | FAN Linlin YANG Xin TIAN Zhiyue ZHAO Xuekun LI Ruixiang XUE Ying | 2014 | Chemical Research in Chinese Universities2014，30，3： | 0 |
| 7 | Effect of CaO Impurity on Mullite Formation from SiO_(2) Gel and Al_(2)O_(3) Powders显示文摘To broaden the application of SiO_(2) sol-bonded castables,using micro-or nano-Al_(2)O_(3) powder and SiO_(2) gel powder as the main raw materials,the effects of CaO impurity on the formation of mullite by the reaction of Al_(2)O_(3) and SiO_(2) at different temperatures(1350,1400,1500,and 1600℃)in different atmospheres(oxidation atmosphere and reduction atmosphere)were studied.The results show that in the oxidizing atmosphere,the introduction of CaO can promote the formation of mullite.When the temperature increases from 1350℃to 1600℃,the amount of mullite formed gradually increases.In the reducing atmosphere,the introduction of CaO is not conducive to the formation of mullite,and the amount of mullite decreases with the increasing temperature.The smaller the particle size of Al_(2)O_(3),the more easily it reacts with SiO_(2) gel powder to form mullite. | GENG Qiankun TIAN Xuekun WANG Hongsen SHEN Jiaxin OUYANG Deze ZHAO Fei LIU Xinhong | 2024 | China's Refractories2024，33，1： | 0 |
| 8 | Influence of Virtual Synchronous Generators on Low Frequency Oscillations显示文摘By simulating the operating dynamics of synchronous generators(SGs),the use of virtual synchronous gen-rators(VSGs)can help overcome inverter-based generators'shortcomings of low inertia and minimal damping for gridforming applications.VSGs'stability are very important for their solar and wind electricity applications.Currently,the related research primarily focuses on VSGs and their applications for microgrids.There has been little research to explore how VSGs effect low frequency oscillations in power transmission systems.This paper describes a small-signal model of a VSGSG interconnected system,which is suitable for studying low frequency oscillation damping in a power transmission grid.Based on this model,the effects of VSGs on low frequency oscillations are compared with the effects of SGs to reveal the mechanism of how VSGs infuence damping characteristics.The influence of each VSG control loop on oscillations is also analyzed in this paper.Then,the low frequency oscillation risks with different types of VSGs are described.Finally,experiments on a real-time laboratory(RT-LAB)platform are conducted to verify the small-signal analysis results. | Hui Liu Dawei Sun Feng Zhao Yunfeng Tian Peng Song Xuekun Cheng | 2022 | CSEE Journal of Power and Energy Systems2022，8，4： | 0 |
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