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| 1 | Evaluating the fractionation of ion-adsorption rare earths for in-situ leaching and metallogenic mechanism显示文摘The fractionation of ion adsorption rare earths(IAREs) along the depth in a shaft of a deposit at Dajishan,Jiangxi, China was comparatively evaluated using the partition values(PVs) and relative fractionation values(RFVs) of the leached rare earths(REs). It is found that both PVs and RFVs can objectively reflect the migration and fractionation of REs, but RE content and abrasion pH could not. However, the RFVs can provide more information to quantitatively evaluating the migration and fractionation characteristics of REs along the selected direction and region than PVs could, which is of significance for designing the optimal procedures of in-situ leaching based on the determined flow direction of injecting solution. It is demonstrated that the migration of Ce, Pr, and Nd along the depth direction is inert, and that of REs post Sm and Y is active. Meanwhile, the migration of La shows region characteristics which is active in the upper and inert in lower region. More interesting, the dependence of RFVs on atomic number of REs displays a tetrad group variation trend. However, the fractionation of REs among clay minerals with different particle sizes is not evident, especially for the clay in the bottom region. These results indicate that the migration and fractionation of REs not only are dominated by the adsorption of their hydrated ions, but also rely on their hydrolysis tendency, which provide information for understanding the metallogenic mechanism of IAREs. | Qiuhua Xu Lifeng Yang Dashan Wang Xiao Hou Yuanyuan Sun Xuezhen Zhou Xinmu Zhou Yongxiu Li | 2018 | Journal of Rare Earths2018，36，12： | 4 |
| 2 | Modeling of Isobutane/Butene Alkylation Using Solid Acid Catalysts in a Fixed Bed Reactor显示文摘A dynamic mass transfer model of isobutane/butene alkylation over solid acid catalysts in a fixed bed reactor was established. In the model, a modified equation for the relationship between point activity and effective diffusion coefficient was proposed. It is found that the simulation results fit the experimental data well and the breakthrough time of the bed layer is predicted accurately. By modeling the alkylation process, the time-space distribution of butene and point activity profiles of catalysts can be obtained. Furthermore, the reasons for the deactivation of solid acid catalysts were investigated. It indicates that the main reason for the deactivation of catalysts is the site coverage near the inlet of the reactor, while it is ascribed to the steric effect in the region far away from the inlet. | Liu Zheng Tang Xiaojin Hu Lifeng Hou Shuandi | 2016 | China Petroleum Processing & Petrochemical Technology2016，18，2： | 3 |
| 3 | Effect of the Heat-treatment Temperature on the Mechanical Properties and Microstructural Evolution of Cold-rolled Twinning-induced Plasticity Steel显示文摘TWIP steels with 70% cold-rolled reduction were heated at 500, 600, 700, 800, 900, 1000, and 1100 ℃. Then, the properties before and after heating were examined through tensile and hardness experiments. The microstructures were also analyzed by optical microscopy and transmission electron microscopy. The relationship between the properties and microstructure was examined as well. Finally, the evolution process of cold-rolled microstructures during heating was discussed in detail. Moreover, some conclusions can be drawn, and the heating evolution characteristics are described. | 李大赵 WEI Yinghui SONG Jinlu HOU Lifeng | 2015 | Journal of Wuhan University of Technology(Materials Science)2015，30，2： | 3 |
| 4 | Compact and broadband multimode waveguide bend by shape-optimizing with transformation optics显示文摘Multimode waveguide bend is one of the key components for realizing high-density mode-division multiplexing systems on chip.However,the reported multimode waveguide bends are either large,bandwidth-limited or fabrication-complicated,which hinders their applications in future high-density multimode photonic circuits.Here we propose a compact multimode waveguide bend supporting four TE modes simply by shape-optimizing with transformation optics.The shape of the waveguide is optimized in the virtual space with gradient distribution of the refractive index,so that the scattering loss and intermode cross talk are well suppressed.After conformal mapping back into the physical space,a compact(effective radius of 17μm)multimode bending waveguide is obtained.Simulations show that the proposed multimode waveguide bend has little loss(<0.1 dB)and low cross talk(<−20 dB)throughout an ultrabroad wavelength range of 1.16–1.66μm.We also fabricated the shape-optimized multimode bending waveguide on a silicon-on-insulator wafer.At 1550 nm wavelength,the measured excess losses for the four lowest-order TE modes are less than 0.6 dB,and the intermode cross talks are all below−17 dB.Our study paves the way for realizing high-density and large-scale multimode integrated optical circuits for optical interconnect. | SHUYI LI LIFENG CAI DINGSHAN GAO JIANJI DONG JIN HOU CHUNYONG YANG SHAOPING CHEN XINLIANG ZHANG | 2020 | Photonics Research2020，8，12： | 3 |
| 5 | Development of carbon nanofibers from aligned electrospun polyacrylonitrile nanofiber bundles and characterization of their microstructural, electrical, and mechanical properties显示文摘 | Zhengping Zhou Chuilin Lai Lifeng Zhang Yong Qian Haoqing Hou Darrell H. Reneker Hao Fong | 2009 | Polymer2009，，13： | 2 |
| 6 | Pool Sizes and Turnover of Soil Organic Carbon of Farmland Soil in Karst Area of Guilin显示文摘The three-pool and first-order model separates the mineralizable organic carbon into active,slow,and passive carbon pools.This paper used the model and decomposition curves of the soil organic carbon to fit the active pool and its decomposition rate,slow pool and its decomposition rate.The results showed that the size of the active pool from different profiles accounted for 2.09%-3.08% of the total soil organic carbon and the mean residue time was 3.57-17.21 days.And the size of the slow pool accounted for 3.19%-43.55% and the mean residue time was 1.12-4.94 years.Acid hydrolysis(6M HCl) was used to fractionate the passive organic carbon,which accounted for 50.83%-94.44% of the total soil organic carbon. | YANG Hui CAO Jianhua ZHANG Liankai HOU Yanlin MAO Lifeng | 2011 | Journal of Northeast Agricultural University(English Edition)2011，18，1： | 2 |
| 7 | Acidity-triggered TAT-presenting nanocarriers augment tumor retention and nuclear translocation of drugs显示文摘 | Wei Jiang Jilong Wang Jinbin Yang Zhiwei He Zhenhui Hou Yingli Luo Li Wang Jing Liu Houbing Zhang Yangyang Zhao Guoqing Zhang Fang Huang Xuechang Zhou Lifeng Yan Xianzhu Yang Yucai Wang Jun Wang | 2018 | Nano Research2018，11，10： | 2 |
| 8 | Influence of Surface Nanocrystallization on Ti Ion Implantation of Pure Iron显示文摘In order to increase the depth or concentration of Ti ion implantation of pure iron, the surface mechanical attrition treatment(SMAT), which can fabricate a nanometer-grained surface layer without porosity and contamination in a pure iron plate, was used before ion implantation. Ti ion was implanted into the SMA treated sample and coarse-grained counterpart by using a metal vapor vacuum arc source implanter. The changing of depth and concentration of Ti was studied in a function of implantation time.By optical microscopy, transmission electron microscopy and X-ray diffraction, the grain size of the nano structured surface was studied. Micro-hardness, friction and wear behavior of nano surface layers were studied. By energy dispersive X-ray spectroscopy and Auger electron spectroscopy, the chemical composition and concentration of Ti ion in the surface implantation layer were studied. Experimental results showed that the concentration of Ti increased dramatically compared with untreated coarsegrained samples, which is attributed to the existence of higher density of defects(supersaturated vacancies, dislocations, non-equilibrium grain boundaries etc.) and compression stress field in the SMA treated nanocrystallined surface layer. The interaction between the defects and the implanted solute atoms leads to the increment of solid solubility. But the implantation depth showed inconspicuous change. It is shown that the ion range is just relevant to the energy and mass of the ion, dose of injection,the mass and density of target material. | Xu Li Yanli An Yinghui Wei Huayun Du Lifeng Hou Chunli Guo Hongbo Qu Yide Wang | 2015 | Journal of Materials Science & Technology2015，31，3： | 2 |
| 9 | The L(p; q)-labelling of planar graphs without 4-cycles显示文摘 | ZHU Haiyang HOU Lifeng CHEN Wei | 2014 | Discrete Ap- plied Mathematics2014，162，： | 1 |
| 10 | One way of surface alloying treatment on iron surface based on surface mechanical attrition treatment and heat treatment显示文摘 | Huayun Du Yinghui Wei Wanming Lin Lifeng Hou Zengqing Liu Yanli An Wenfu Yang | 2009 | Applied Surface Science2009，，20： | 1 |
| 11 | The L (p, q ) -labelling of planar graphs without 4 -cycles 显示文摘 | Zhu Haiyang Hou Lifeng Chert Wei | 2014 | Discrete Appl Math2014，162，1： | 1 |
| 12 | Characterization and properties of nanocrystalline surface layer in Mg alloy induced by surface mechanical attrition treatment显示文摘 | Yinghui Wei Baosheng Liu Lifeng Hou | 2008 | Journal of Alloys and Compounds2008，452，2： | 1 |
| 13 | Doping profile modification approach of the optimization of HfO_x based resistive switching device by inserting AlO_x layer显示文摘Hf Ox based resistive switching devices with thin Al Ox layer inserted between Hf Ox and Ti N top electrode(TE) and Pt bottom electrode(BE) were fabricated respectively. Both devices show robust bipolar resistive switching phenomenon. Experimental result reveals that Ti N/Al Ox/Hf Ox/Pt device with appropriately thick Hf Ox film shows significant enhancement in performance as compared with other samples, having lower voltage and excellent uniformity. The role of inserted Al Ox layer and thickness of Hf Ox film on resistive switching properties are discussed and clarified through comparative experiments, which is considered to be a doping effect. The experimental result is consistent with the model where resistive switching happens near Ti N top electrode(TE) due to partial rupture and reconstruction of conducting filaments(CFs) assisted by the doping. The different doping profiles near top electrode of the samples were confirmed by XPS depth analysis.This work provides detailed information about the optimization of Hf Ox based resistive switching device by a doping profile modification approach. | HOU Yi CHEN Bing CHEN Zhe ZHANG FeiFei LIU LiFeng KANG JinFeng CHENG YuHua | 2015 | Science China(Information Sciences)2015，58，6： | 1 |
| 14 | The L(p, q)-labelling of planar graphs without 4-cycles显示文摘 | ZHU Haiyang HOU Lifeng CHEN Wei Lii Xinzhong | 2014 | Discrete Applied Mathematics2014，162，： | 1 |
| 15 | Ambient Temperature and Years of Life Lost:A National Study in China显示文摘Although numerous studies have investigated premature deaths attributable to temperature,effects of temperature on years of life lost(YLL)remain unclear.We estimated the relationship between temperatures and YLL,and quantified the YLL per death caused by temperature in China.We collected daily meteorological and mortality data,and calculated the daily YLL values for 364 locations(2013–2017 in Yunnan,Guangdong,Hunan,Zhejiang,and Jilin provinces,and 2006–2011 in other locations)in China.A time-series design with a distributed lag nonlinear model was first employed to estimate the location-specific associations between temperature and YLL rates(YLL/100,000 population),and a multivariate meta-analysis model was used to pool location-specific associations.Then,YLL per death caused by temperatures was calculated.The temperature and YLL rates consistently showed U-shaped associations.A mean of 1.02(95%confidence interval:0.67,1.37)YLL per death was attributable to temperature.Cold temperature caused 0.98 YLL per death with most from moderate cold(0.84).The mean YLL per death was higher in those with cardiovascular diseases(1.14),males(1.15),younger age categories(1.31 in people aged 65–74 years),and in central China(1.34)than in those with respiratory diseases(0.47),females(0.87),older people(0.85 in people R75 years old),and northern China(0.64)or southern China(1.19).The mortality burden was modified by annual temperature and temperature variability,relative humidity,latitude,longitude,altitude,education attainment,and central heating use.Temperatures caused substantial YLL per death in China,which was modified by demographic and regional characteristics. | Tao Liu Chunliang Zhou Haoming Zhang Biao Huang Yanjun Xu Lifeng Lin Lijun Wang Ruying Hu Zhulin Hou Yize Xiao Junhua Li Xiaojun Xu Donghui Jin Mingfang Qin Qinglong Zhao Weiwei Gong Peng Yin Yiqing Xu Jianxiong Hu Jianpeng Xiao Weilin Zeng Xing Li Siqi Chen Lingchuan Guo Zuhua Rong Yonghui Zhang Cunrui Huang Yaodong Du Yuming Guo Shannon Rutherford Min Yu Maigeng Zhou Wenjun Ma | 2021 | The Innovation2021，2，1： | 1 |
| 16 | Human umbilical cord mesenchymal stem cell transfusion in immune non-responders with AIDS:a multicenter randomized controlled trial显示文摘We examined the safety and efficacy of human umbilical cord mesenchymal stem cell(hUC-MSC)infusion for immune nonresponder(INR)patients with chronic HIV-1 infection,who represent an unmet medical need even in the era of efficient antiretroviral therapy(ART).Seventy-two INR patients with HIV were enrolled in this phase II randomized,double-blinded,multicenter,placebo-controlled,dose-determination trial(NCT01213186)from May 2013 to March 2016.They were assigned to receive high-dose(1.5 x 106/kg body weight)or low-dose(0.5 x 106/kg body weight)hUC-MSC,or placebo.Their clinical and immunological parameters were monitored during the 96-week follow-up study.We found that hUC-MSC treatment was safe and well-tolerated.Compared with baseline,there was a statistical increase in CD4+T counts in the high-dose(P<0.001)and low-dose(P<0.001)groups after 48-week treatment,but no change was observed in the control group.Kaplan-Meier analysis revealed a higher cumulative probability of achieving an immunological response in the low-dose group compared with the control group(95.8%vs.70.8%,P=0.00A).However,no significant changes in CD4/CD84-T counts and CD4/CD8 ratios were observed among the three groups.In summary,hUC-MSC treatment is safe.However,the therapeutic efficacy of hUC-MSC treatment to improve the immune reconstitution in INR patients still needs to be further investigated in a large cohort study. | Lifeng Wang Zheng Zhang Ruonan Xu Xicheng Wang Zhanjun Shu Xiejie Chen Siyu Wang Jiaye Liu Yuanyuan Li Li Wang Mi Zhang Wei Yang Ying Wang Huihuang Huang Bo Tu Zhiwei Liang Linghua Li Jingxin Li Yuying Hou Ming Shi Fu-Sheng Wang | 2021 | Signal Transduction and Targeted Therapy2021，6，7： | 0 |
| 17 | Yes-associated protein contributes to magnesium alloy-derivedinflammation in endothelial cells显示文摘Magnesium alloy(Mg alloy)has attracted massive attention in the potential applications of cardiovascular stents because of its good biocompatibility and degradability.However,whether and how the Mg alloy induces inflammation in endothelial cells remains unclear.In the present work,we investigated the activation of Yes-associated protein(YAP)upon Mg alloy stimuli and unveiled the transcriptional function in Mg alloy-induced inflammation.Quantitative RT–PCR,western blotting and immunofluorescence staining showed that Mg alloy inhibited the Hippo pathway to facilitate nuclear shuttling and activation of YAP in human coronary artery endothelial cells(HCAECs).Chromatin immunoprecipitation followed sequencing was carried out to explore the transcriptional function of YAP in Mg alloy-derived inflammation.This led to the observation that nuclear YAP further bonded to the promoter region of inflammation transcription factors and co-transcription factors.This binding event activated their transcription and modified mRNA methylation of inflammation-related genes through regulating the expression of N6-methyladenosine modulators(METTL3,METTL14,FTO and WTAP).This then promoted inflammation-related gene expression and aggravated inflammation in HCAECs.In YAP deficiency cells,Mg alloy-induced inflammation was reduced.Collectively,our data suggest that YAP contributes to the Mg alloy-derived inflammation in HCAECs and may provide a potential therapeutic target that alleviates inflammation after Mg alloy stent implantation. | Hongchi Yu Zhe Hou Nuoya Chen Rifang Luo Li Yang Michael Miao Xiaoyi Ma Lifeng Zhou Fugui He Yang Shen Xiaoheng Liu Yunbing Wang | 2022 | Regenerative Biomaterials2022，9，1： | 0 |
| 18 | Selection of Greenhouse Zucchini Varieties and High-Quality,High-Yield and High-Efficiency Cultivation Techniques显示文摘[Objectives]To select zucchini varieties suitable for cultivation in Zibo City and test its high-yield cultivation techniques.[Methods]Six zucchini varieties were introduced,and their commercial quality and yield were determined.[Results]The yield of Shengfeier,Xiuyu 170 and Xihulu 309 increased by 11.4%,6.9%and 4.6%,respectively compared with S68(control),and zucchini was straight,looked pleasing to the eye,and had strong disease resistance.[Conclusions]The zucchini varieties were selected and the high-quality,high-yield and high-efficiency cultivation techniques were integrated. | Haijuan ZHANG Guanghui FENG Lifeng YANG Bo GENG Xiangying HOU Dongwen SUN | 2023 | Asian Agricultural Research2023，15，6： | 0 |
| 19 | Electrostatic beneficiation of fly ash in a free-falling system显示文摘A systematic study of fly ash electrostatic beneficiation in a free-falling separation system was carried out to provide fundamental understanding of the separation efficiency for the design of a suitable process for industrial applications. The parameters investigated included feeding position, electric field strength, particle size and moisture content. Particles larger than 105 m presented the best separation efficiency among four different size fractions, whereas particles smaller than 44 m showed minimal separation. However, sonication treatments helped separation by liberating more carbon from ash particles, although particle sizes were reduced as well. Experiments also showed that exposure to moisture significantly altered charging behavior of fly ash and its subsequent separation due to more free mobile ion-induced charge exchanges. The optimal feeding position was found to be slightly on the side of the negative electrode, leading to a 30% reduction in loss-on-ignition (LOI) and a 45% recovery in a single pass. A simplified mechanical model based on trajectory analysis for charged particles in an electrical field was in reasonable agreement with experimental results. | Lifeng Zhang Jiangtian Hou Xiaotao T.Bi John R.Grace Travis Janke Claudio Arato | 2012 | Particuology2012，10，2： | 0 |
| 20 | Leap of Li Metal Anodes from Coin Cells to Pouch Cells:Challenges and Progress显示文摘Li metal anodes have attracted tremendous attention in the last decade because of their high theoretical capacities and low electrochemical potentials.However,until now,there has only been limited success in improving the interfacial and structural stabilities and in realizing the highly controllable and large-scale fabrication of this emerging material;these limitations have posed great obstacles to further performing fundamental and applied studies in Li metal anodes.In this review,we focus on summarizing the existing challenges of Li metal anodes based on the leap from coin cells to pouch cells and on outlining typical methods for designing Li metal anodes on demand;we controllably engineer their surface protection layers and structure sizes by encapsulating structured Li metal inside a variety of synthetic protection layers.We aim to provide a comprehensive understanding and serve as a strategic guide for designing and fabricating practicable Li metal anodes for use in pouch batteries.Challenges and opportunities regarding this burgeoning field are critically evaluated at the end of this review. | Qian Wang Tiantian Lu Yuanbin Xiao Jianyang Wu Lixiang Guan Lifeng Hou Huayun Du Huan Wei Xiaoda Liu Chengkai Yang Yinghui Wei Henghui Zhou Yan Yu | 2023 | Electrochemical Energy Reviews2023，6，1： | 0 |
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