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| 1 | Oligomerization of 1-Decene: Catalyzation by Immobilized AlCl_3/γ-Al_2O_3 Catalyst in Fixed-bed Reactor显示文摘1-Decene was oligomerized over the supported AlCl3/γ-Al2O3 catalyst in a fixed-bed reactor. The effects of temperature and LHSV on oligomerization of 1-decene were investigated and the synthetic PAO was characterized with GC technique. Furthermore, the life of immobilized catalyst was tested and the mechanism of catalyst deactivation was discussed. The results showed that with an increasing temperature, the PAO yield increased and the kinematic viscosity of oil decreased. The GC results indicated that the synthesized PAO was a mixture consisting of dimers, trimers, tetramers and pentamers. The results of chloride content measurements and BET tests showed that catalyst deactivation could be mainly attributed to the loss of active components. | Li Deng Shen Benxian Sun Hui | 2014 | China Petroleum Processing & Petrochemical Technology2014，16，3： | 7 |
| 2 | Rheological properties and viscosity reduction of South China Sea crude oil显示文摘The rheological properties of South China Sea(SCS) crude oil were studied. A group of synthetic long-chain polymers, including octadecyl acrylate-maleic anhydride bidodecyl amide copolymer(VR-D),octadecyl acrylate-maleic anhydride bioctadecyl amide copolymer(VR-O) and octadecyl acrylate-maleic anhydride phenly amide copolymer(VR-A), were employed to serve as viscosity reducers(VRs). Their performance was evaluated by both experimental and computational methodologies. The results suggest that the SCS crude oil has low wax content yet high resin and asphaltene contents, which lead to high viscosity through formation of association structures. Additionally, the SCS crude oil appears to be a pseudoplastic fluid showing linear shear stress-shear rate dependence at low temperature. Interestingly, it gradually evolves into a Newtonian fluid with exponential relationship between shear stress and shear rate at higher temperature. Synthetic VRs demonstrate desirable and effective performance on improvement of the rheological properties of SCS crude oil. Upon the introduction of 1000 ppm VR-O,which is synthesized by using octadecylamine in the aminolysis reaction, the viscosity of SCS crude oil is decreased by 44.2% at 15 °C and 40.2% at 40 °C. The computational study suggests significant energy level increase and shear stress decrease for VR-containing crude oil systems. | Hui Sun Xingxing Lei Benxian Shen Huiran Zhang Jichang Liu Gengnan Li Di Wu | 2018 | Journal of Energy Chemistry2018，27，4： | 5 |
| 3 | Patterns of Clay Minerals Transformation in Clay Gouge, with Examples from Revers Fault Rocks in Devonina Niqiuhe Formation in The Dayangshu Basin显示文摘The role of authigenic clay growth in clay gouge is increasingly recognized as a key to understanding the mechanics of berittle faulting and fault zone processes,including creep and seismogenesis,and providing new insights into the ongoing debate about the frictional strength of brittle fault(Haines and van der Pluijm,2012).However,neither the conditions nor the processes | MENG Jie LI Benxian ZHANG Juncheng LIU Xiaoyang | 2017 | Acta Geologica Sinica(English Edition)2017，91，S1： | 2 |
| 4 | Synthesis of LiMn2O4 Nano-wires via Flux Method and Their Usage as Cathode Material for Lithium Ion Batteries显示文摘 | MENG Yujia LIU Xiaoyang LIU Li LI Benxian ZHAO Xudong FENG Likun WANG Yanxiang WANG Xiaofeng | 2015 | Chemical Research in Chinese Universities2015，31，5： | 1 |
| 5 | Acetic Acid Assistant Hydrogenation of Graphene Sheets with Ferromagnetism显示文摘 | SUN Qiushi WANG Xiaofeng LI Benxian WU Yunpeng ZHANG Ziqing ZHANG Xinyang ZHAO Xudong LIU Xiaoyang | 2018 | Chemical Research in Chinese Universities2018，34，3： | 0 |
| 6 | Ultrasound image fusion based on the ratio between local fundamental and harmonic spectral peaks显示文摘An ultrasound image fusion method based on the local fundamental and harmonic spectral peak ratio(LFHR)is proposed.First,the fundamental and harmonic components of the ultrasonic radio frequency(RF)signals are separated.The weights of both components are determined according to their spectral peak ratio.Then,the fused RF signals are produced by weighted averaging the fundamental and harmonic components.Finally,the ultrasound fusion images are generated using the framework of demodulation,logarithmic compression and interpolation/down-sampling.Experimental results based on simulations of inhomogeneous cysts have shown that the contrast,contrast-to-noise ratio,and tissue-to-clutter ratio of the fusion images obtained from the proposed method are 2.44,2.80,and 3.22 times higher than the original images,respectively.The harmonic energy is increased by 83%.The clinical experiments with the human carotid artery have also validated the effectiveness of the proposed method.In summary,the fused B-mode images produced by the LFHR method possess rich details,clear tissue contour,and improved quality. | HE Bingbing NIU Dehao ZHANG Yufeng YANG Benxian LIANG Hong LI Zliiyao ZHANG Junhua | 2021 | Chinese Journal of Acoustics2021，40，4： | 0 |
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