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| 1 | Reagent types and action mechanisms in ilmenite flotation:A review显示文摘Ilmenite is an essential mineral for the extraction of titanium.Conventional physical separation methods have difficulty recovering fine ilmenite,and dressing plants have begun applying flotation to recover ilmenite.The interaction of reagent groups with Ti and Fe sites on the ilmenite surface dramatically influences the ilmenite flotation.However,the investigation on Fe sites has received more attention because the activity of Ti is lower than that of Fe.For the activators on ilmenite flotation,most are metal ions but typically lead ions.The metal ions of activators promote ilmenite flotation by increasing the active sites on the ilmenite surface.Combined reagents have a better selective separation of ilmenite than single reagents due to their synergistic effect.Combining the lead ion(Pb^(2+))and the benzyl hydroxamic acid(BHA)into a Pb-BHA complex has a marked effect on ilmenite flotation,which puts forward a new idea of developing combined reagents for ilmenite flotation.This review considers reagent types and action mechanisms in ilmenite flotation.On the basis of the analysis of previous research,a brief future outlook of reagent types and action mechanisms in ilmenite flotation is also proposed in this study. | Jiaozhong Cai Jiushuai Deng Liang Wang Mingzhen Hu Hongxiang Xu Xiaoan Hou Bozeng Wu Shimei Li | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，9： | 2 |
| 2 | Image complexity and feature extraction for steganalysis of LSB matching steganography显示文摘 | LIU Qingzhong SUNG A H RIBEIRO B WEI Mingzhen CHEN Zhongxue XU Jiangyun | 2008 | International Journal of Information Sciences2008，，178： | 1 |
| 3 | General drain model for double-gate SOI MOSFETs 显示文摘 | Chen Zhanping Wei Liqiong Xu Mingzhen | 1996 | Chinese Journal of Semiconductors1996，17，10： | 1 |
| 4 | Thickness measurement for ultra thin-film insulator metal -oxide -semiconductor structure using Fowler - Nordheim tunneling current oscillations 显示文摘 | MAO Lingfeng TAN Changhua XU Mingzhen | 2000 | J Appl Phys2000，88，11： | 1 |
| 5 | Production perfor-mance analysis for composite shale gas reservoir considering multi-ple transport mechanisms显示文摘 | XU Jiancun GUO Chaohua WEI Mingzhen | 2015 | Journal of Natural Gas Science andEngineering2015，26，3： | 1 |
| 6 | Production performance analysis for composite shale gas reservoir considering multiple transport mechanisms显示文摘 | Xu Jianchun Guo Chaohua Wei Mingzhen Jiang Ruizhong | 2015 | Journal of Natural Gas Science and Engineering2015，26，： | 1 |
| 7 | Productionperformance analysis for composite shale gas reservoir consid-ering multiple transport mechanisms显示文摘 | Xu Jiancun Guo Chaohua Wei Mingzhen | 2015 | Journal of NaturalGas Science and Engineering2015，26，3： | 1 |
| 8 | Discordant expression of Ii and HLA-DR in thyrocytes: A possible pathogenetic factor in Hashimoto’s thyroiditis显示文摘 | Mujun Yu MD PhD Mingzhen Xu MD PhD Lou Savas MS Ashraf Khan MD MRCPath | 1998 | Endocrine Pathology1998，，3： | 1 |
| 9 | Production Performance Analysis for Composite ShaleGas Reservoir Considering Multiple Transport Mechanisms显示文摘 | XU JIANCHUN’GUO CHAOHUA WEI MINGZHEN etal | 2015 | Journal of Natural Gas Science and Engineering2015，26，： | 1 |
| 10 | Extraordinary Compatibility to Mass Loading and Rate Capability of Hierarchically Porous Carbon Nanorods Electrode Derived from the Waste Tire Pyrolysis Oil显示文摘The conversion of waste tire pyrolysis oil(WTPO)into S-doped porous carbon nanorods(labeled as WPCNs)with hierarchical pore structure is realized by a simple template-directed approach.The specific surface area of as-obtained porous carbon nanorods can reach up to 1448 m^(2) g^(−1) without the addition of any activating agent.As the capacitive electrode,WPCNs possess the extraordinary compatibility to capacitance,different electrolyte systems as well as long-term cycle life even at a commercial-level areal mass loading(10 mg cm^(−2)).Besides,only an extremely small capacitance fluctuation is observed under the extreme circumstance(−40 to 80℃),reflecting the excellent high-and low-temperature performance.The relationship between the pore structure and capacitive behavior is analyzed by comparing WPCNs with mesopores-dominated asphalt-derived porous carbon nanorods(APCNs)and micropores-dominated activated carbon.The molecular dynamics simulation further reveals the ion diffusion and transfer ability of the as-prepared carbon materials under different pore size distribution.The total ion flow(NT)of WPCNs calculated by the simulation is obviously larger than APCNs and the N_(T) ratio between them is similar with the experimental average capacitance ratio.Furthermore,this work also provides a valuable strategy to prepare the electrode material with high capacitive energy storage ability through the high value-added utilization of WTPO. | Shengping Li Zipan Yang Mingzhen Wu Chenggen Xu Xilu Zhang Rundan Lin Xuejie Wang Lu Zhao Dong Sun Xinlong Ma Jinsen Gao | 2022 | Energy & Environmental Materials2022，5，4： | 0 |
| 11 | A depressant for marmatite flotation:Synthesis,characterisation and floatation performance显示文摘This study synthesised a zincic salt(ZS)as a depressant for marmatite-galena separation.The effect of ZS on the flotation of marmatite and galena was investigated through micro-flotation tests.88.89%of the galena was recovered and 83.39%of the marmatite was depressed with ZS dosage of 750 mg·L^(−1)at pH=4.The depression mechanism of ZS on marmatite was investigated by a variety of techniques,including adsorption measurements,Fourier transform infrared(FTIR),X-ray photoelectron spectroscopic(XPS)analysis,and time of flight secondary ion mass spectrometry(ToF-SIMS).Results of adsorption tests and FTIR reveal that ZS adsorbed on marmatite surface and impeded the subsequent adsorption of butyl xanthate(BX).The results of XPS and ToF-SIMS indicate that the ZnO_(2)^(3-)released by ZS could be chemisorbed on the marmatite surface and depress marmatite flotation. | Tichen Wang Guiju Sun Jiushuai Deng Hongxiang Xu Guoyong Wang Mingzhen Hu Qizheng Qin Xiaohao Sun | 2023 | International Journal of Minerals,Metallurgy and Materials2023，30，6： | 0 |
| 12 | Application of Thin Layer Chromatography in Preparation of Drug Containing Serum of Eucalyptus Oil显示文摘[Objectives] To explore whether the thin layer chromatography( TLC) can be used to guide the preparation of drug containing serum of eucalyptus oil. [Methods]Eucalyptus oil samples with different dilution ratio were detected by TLC. Eucalyptus oil was intragastrically administered to mice,serum samples of different eucalyptus oil doses,different intragastric administration methods and different blood sampling times were collected. The above samples were detected by TLC,and the above results were verified by gas chromatography. [Results] TLC can detect concentration difference of eucalyptus oil samples with different dilution ratio. TLC can provide qualitative and semi-quantitative detection of eucalyptus oil in serum. High,medium and low dose of eucalyptus oil in serum had different effects on the growth of MCF-7 cells in the SD rats( P < 0. 05). [Conclusions] TLC can be used to guide the preparation of drug containing serum of eucalyptus oil. | Bingyang GUO Yongli YU Shijuan LUO Xiaoqing YIN Mingzhen XU | 2018 | Medicinal Plant2018，9，1： | 0 |
| 13 | Potential risk of colonization of Bulinus globosus in the mainland of China under climate change显示文摘Background: Bulinus globosus,the main intermediate snail host of Schistosoma haematobium.The increased contacts between Africa and China could even lead to large-scale dissemination of B.globosus in China.Temperature is the key factor affecting fresh-water snail transmission.This study predicted potential risk of colonization of B.globosus in the mainland of China under climate change.Methods: We investigated minimum and maximum temperatures for B.globosus eggs,juveniles and adult snails kept under laboratory conditions to find the most suitable range by pinpointing the median effective temperatures(ET50).We also assessed the influence of temperature on spawning and estimated the accumulated temperature(AT).The average air temperatures between 1955 and 2019 in January and July,the coldest and hottest months in China,respectively,were collected from national meteorological monitoring stations and investigated in a geographic information system(GIS)using empirical Bayesian Kriging to evaluate the theoretical possibility for distribution of B.globosus in southern China based on temperature.Results: The effective minimum temperature(ET50min)for eggs,juveniles,adult snails and spawning were 8.5,7.0,7.0,14.9℃,respectively,with the corresponding maximum values(ET50max)of 36.6,40.5,40.2 and 38.1℃.The AT was calculated at 712.1±64.9℃·d.In 1955,the potential B.globosus distribution would have had a northern boundary stretching from the coastal areas of Guangdong Province and Guangxi Autonomous Region to southern Yunnan Province.Since then,this line has gradually moved northward.Conclusions: Annual regeneration of B.globosus can be supported by the current climate conditions in the mainland of China,and a gradual expansion trend from south to north is shown in the study from 2015 to 2019.Thus,there is a potential risk of colonization of B.globosus in the mainland of China under climate change. | Xinyao Wang Saleh Juma Wei Li Mchanga Suleman Mtumweni Ali Muhsin Jian He Mingzhen He Dacheng Xu Jianfeng Zhang Robert Bergquist Kun Yang | 2022 | Infectious Diseases of Poverty2022，11，3： | 0 |
| 14 | Recent Advances of Cu-Based Materials for Electrochemical Nitrate Reduction to Ammonia显示文摘The pollution of nitrate in groundwater has become an environmental problem of general concern due to adverse human and ecological impacts. Treatment of nitrate-rich wastewater is of significance yet challenging for the conventional biological denitrification processes. Electrocatalytic nitrate-to-ammonia conversion emerges as one of the most promising avenues to remove environmentally harmful nitrate from various types of wastewaters while simultaneously producing value-added ammonia. Cu-based materials show great advantages in promoting selective electroreduction of nitrate to ammonia in terms of high nitrate conversion efficiency, ammonia selectivity and ammonia faradaic efficiency thanks to the 3d transition metal structure, low cost, high reserves, and excellent catalytic performance of Cu. In this review, we comprehensively overview the most recent advances in selective electrocatalytic nitrate-to-ammonia conversion using Cu-based materials. Various kinds of Cu-based materials including monometallic Cu catalysts, bimetallic Cu-based catalysts, Cu-based compounds, and Cu-based inorganicorganic hybrid materials and their derivatives are discussed in detail with emphasis on their structural and compositional features and functional mechanisms in promoting nitrate-to-ammonia conversion. Finally, a brief discussion on future directions, challenges and opportunities in this field is also provided. | Tianlun Ren Youwei Sheng Mingzhen Wang Kaili Ren Lianlian Wang You Xu | 2022 | Chinese Journal of Structural Chemistry2022，41，12： | 0 |
| 15 | Porous carbon spheres anode with the stable output of low delithiation plateau and constant delithiation ratio for lithium ion hybrid capacitor显示文摘Porous carbon spheres derived from the facile hydrothermal treatment associated with the calcination process exhibit the good spherical morphology and unique porous structure.For the Li-based half-cell test,porous carbon spheres electrode not only exhibits larger reversible capacities and better compatibility as compared to the widely-used graphite,but also provides stable delithiation plateaus under different current density.Additionally,the delithiation ratio below 1 V almost accounts for a constant value(around 70%)with the increase of current density,evidencing that Li intercalation storage is the dominant model and Li insertion/extraction processes are propitious.The lithium ion hybrid capacitor configured with S-doped mesoporous graphene and porous carbon spheres as cathode and anode,delivers satisfied energy and power densities(up to 177 Wh kg^(−1) and 12,303 W kg^(−1),respectively)as well as long-term cyclability,which is superior to the corresponding S-doped mesoporous graphene//graphite and activated carbon//porous carbon spheres.In addition,the developed synthesis strategy is in favor of the realization of the scalable production of porous carbon spheres. | Mingzhen Wu Zipan Yang Shengping Li Xuejie Wang Chenggen Xu Rundan Lin Xilu Zhang Xinlong Ma Guoyong Huang Jinsen Gao | 2021 | Particuology2021，19，5： | 0 |
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