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| 1 | Transmission Dynamics of an Outbreak of the COVID-19 Delta Variant B.1.617.2——Guangdong Province,China,May-June 2021显示文摘On May 21,2021,a local case of coronavirus disease 2019(COVID-19)was confirmed in a 75-year-old woman(experienced onset of symptoms on May 18)in Liwan District,Guangzhou City,Guangdong Province,China.The number of infections has increased in the following 10 days and led to 5 generations of transmission. | Meng Zhang Jianpeng Xiao Aiping Deng Yingtao Zhang Yali Zhuang Ting Hu Jiansen Li Hongwei Tu Bosheng Li Yan Zhou Jun Yuan Lei Luo Zimian Liang Youzhi Huang Guoqiang Ye Mingwei Cai Gongli Li Bo Yang Bin Xu Ximing Huang Yazun Cui Dongsheng Ren Yanping Zhang Min Kang Yan Li | 2021 | China CDC weekly2021，3，27： | 51 |
| 2 | High precision slope deformation monitoring model based on the GPS/Pseudolites technology in open-pit mine显示文摘As the number and geometric intensity of visual satellites are susceptible to large slopes in open-pit mines, we propose integration of GPS/Pseudolites (PLs) positioning technology which can increase the number of visible satellites, strengthen the geometric intensity of satellites and provide a precision solution for slope deformation monitoring. However, the un-modeled systematic errors are still the main limiting factors for high precision baseline solution. In order to eliminate the un-modeled systematic error, the Empirical Mode Decomposition (EMD) theory is employed. The multi-scale decomposition and reconstruction architecture are defined here on the basis of the EMD theory and the systematic error mitigation model is demonstrated as well. A standard of the scale selection for the systematic error elimination is given in terms of the mean of the accumulated standardized modes. Thereafter, the scheme of the GPS/PLs baseline solution based on the EMD is suggested. The simulation and experiment results show that the precision factors (DOP) are reduced greatly when PLs is located suitably. The proposed scheme dramatically improves the reliability of ambiguity resolution and the precision of baseline vector after systematic error being eliminated, and provides an effective model for high precision slope deformation monitoring in open-pit mine. | WANG Jianpeng, GAO Jingxiang, LIU Chao, WANG Jian School of Environment and Spatial Informatics, China University of Mining & Technology, Xuzhou 221008, China | 2010 | Mining Science and Technology2010，20，1： | 25 |
| 3 | Study on the Control of Tobacco Black Shank by Using Dry Mycelium of Penicillium Chrysogenum显示文摘 | Changliang Xu Rong Zeng Chunsheng Ruan Xiaoxia Wang Kaibao Xia George McBride Jianpeng Luo Suiyun Chen | 2010 | Journal of Life Sciences2010，4，1： | 12 |
| 4 | CO2 Electroreduction in Ionic Liquids: A Review显示文摘 | Jianpeng Feng Shaojuan Zeng Jiaqi Feng Haifeng Dong Xiangping Zhang | 2018 | Chinese Journal of Chemistry2018，36，10： | 11 |
| 5 | Mechanism of intercalation and deintercalation of lithium ions in graphene nanosheets显示文摘Graphene nanosheets (GNSs) were synthesized by reducing exfoliated graphite oxides. Their structure, surface morphology and lithium storage mechanism were characterized and investigated systematically using X-ray diffraction, atomic force microscopy, scanning electron microscopy, charge-discharge tests, cyclic voltammetry and electrochemical impedance spectroscopy. It was found that the GNSs, which were obtained via chemical synthesis, were primarily less than 10 graphene layers. The GNS electrodes, which were fabricated from the reduced GNSs, exhibited an enhanced reversible lithium storage capacity and good cyclic stability when serving as anodes in lithium-ion batteries. Also, the first-cycle irreversible capacities of the system were relatively high, because of the formation of a solid electrolyte interphase film on the surface of the GNS electrode and the spontaneous stacking of GNSs during the first lithiation. The electrochemical impedance spectroscopy results suggest that the solid electrolyte interphase film on the GNS electrode during first lithiation were primarily formed at potentials between 0.95 and 0.7 V. Also, the symmetry factor of the charge transfer was measured to be 0.446. | TIAN LeiLei ZHUANG QuanChao LI Jia SHI YueLi CHEN JianPeng LU Feng SUN ShiGang | 2011 | Chinese Science Bulletin2011，56，30： | 11 |
| 6 | Effect of naringenin in Qianggu capsule on population pharmacokinetics in Chinese women with primary osteoporosis显示文摘OBJECTIVE:To characterize naringenin(NAR) population pharmacokinetics(PPK) in Chinese women with primary osteoporosis.METHODS:Ninety-eight female patients with primary osteoporosis from the Jingshan,Beixinqiao,Jiaodaokou,Chaoyangmen,and Donghuamen communities in Beijing,China,aged 40 to 80 years,received oral Qianggu capsules(250 mg).Blood samples were collected before and at 0.5,1,2,3,4,6,8,10,12,and 24 h after administration.The concentration of NAR in the blood samples was measured using high performance liquid chromatography-tandem mass spectrometry.PPK analyses were performed with nonlinear mixed-effect modeling software(version 7.1.2,PsN3.2.12).The clearance(C1),central distribution volume(V),absorption rate constant(Ka1),peripheral distribution volume(VII),and inter-compartmental clearance(CLII) were set as parameters and estimated by the base model,covariate model,and final model.Kidney-Yang deficiency[Shenyangxu(SYAX)]and liver-kidney-Yin deficiency(Ganshenyinxu) are patterns of symptoms in Traditional Chinese Medicine that were set as covariates,along with age,height,blood urea nitrogen,serum creatinine,alanine transaminase,aspartate transaminase,and hyperlipidemia.Both stepwise forward and backward procedures were accomplished to build models.The final model was evaluated by internal and external validation,visual predictive check,bootstrap,and leverage analysis.RESULTS:A one compartment open model with first order degradation was the best fitted to the concentration-time profiles following oral administration of NAR.The mean of population parameters of the final model,C1,SYAX on C1,V,Ka1,CLII,and VII,were measured to be 37.6 L/h,0.427 L,123 L/h,0.12/h,0.3056,and 1.446,respectively.Inter-individual variability was estimated and SYAX was identified as a significant covariate.CONCLUSION:The population pharmacokinetic model described in this study could effectively characterize the pharmacokinetic profile of NAR following administration of a single dose of oral Qianggu capsules in Chinese women with primary osteoporosis.Among the tested covariates,only SYAX was a significant factor. | Wang Jiannong Jiang Junjie Xie Yanming Wei Xu Li Jianpeng Duan Jingli Xiong Xin | 2015 | Journal of Traditional Chinese Medicine2015，35，2： | 9 |
| 7 | Vehicle Ride Comfort Based on Matching Suspension System显示文摘The existing investigations of vehicle ride comfort mainly include motion characteristics analysis based on creating a multi-body dynamic simulation model,and the parameters analysis to improve the suspension control for the target.In the study of creating multi-body dynamics simulation models,there is usually without considering calibration and test verification,which make it difficult to ensure the production of engineering.In the study of improving the suspension control parameters for the target,there is a lack of systematic match about comfortable and human characteristics,so it is difficult to implement in the field of driving and leading the vehicle design.In this paper,based on the different characteristic of suspension system that effects on the vehicle ride comfort, according to the suspension system dynamic mechanism,the research methods of vehicle road test,bench test and CAE simulation is used,at the same time,several sensitivity analysis of vehicle ride comfort related to suspension stiffness and damping and speed is made. As a result,the key suspension systematic parameters are given that have important impact on vehicle ride comfort.Through matching parameters,a calibration analysis of suspension system based on human comfort is obtained.The analysis results show that the analysis methods for the design target of making the vehicle with best comfort are effective.On the basis of the theory study,five suspension parameter matching principles are explored to promise the vehicle with perfect ride comfort,which also provide theoretical basis and design methods for the passenger car best match of suspension system stiffness and damping.The research results have the promotional value of practicability and a wide range of engineering application. | SHI Jianpeng | 2011 | Chinese Journal of Mechanical Engineering2011，24，2： | 8 |
| 8 | PIV measurements of turbulent jets issuing from triangular and circular orifice plates显示文摘The present study experimentally investigated the near-field flow mixing characteristics of two turbulent jets issuing from equilateral triangular and circular orifice plates into effectively unbounded surroundings,respectively.Planar particle image velocimetry(PIV) was applied to measure the velocity field at the same Reynolds number of Re=50,000,where Re = UeDe /with Ue being the exit bulk velocity and the kinematic viscosity of fluid,D e the equivalent diameters.The instantaneous velocity,mean velocity,Reynolds stresses were obtained.From the mean velocity field,the centreline velocity decay rate and half-velocity width were derived.Comparing the mixing characteristics of the two jets,it is found that the triangular jet has a faster mixing rate than the circular counterpart.The triangular jet entrainments with the ambient fluid at a higher rate in the near field.This is evidenced by a shorter unmixed core,faster Reynolds stress and centreline turbulence intensity growth.The primary coherent structures in the near field are found to break down more rapidly in the triangular jet as compared to the circular jet.Over the entire measurement region,the triangular jet maintained a higher rate of decay and spread.Moreover,all components of Reynolds stress of the triangular jet appear to reach their peaks earlier,and then decay more rapidly than those of the circular jet.In addition,the axis-switching phenomenon is observed in the triangular jet. | XU MinYi ZHANG JianPeng MI JianChun NATHAN G J KALT P A M | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，6： | 7 |
| 9 | Deformation failure mechanism and application of the backfill along the goaf-side retained roadway显示文摘In order to determine the rational width of backfill in the goaf-side retained roadway, the deformation failure mechanism of surrounding rock in retained roadway is studied in the use of theoretical analysis, numerical simulation, etc., when the width of backfill is different. The results show that: with the increase of backfill width, the roof deformation above the backfill decreases; the outside of backfill obviously suffers from greater stress compared to the inner side of backfill; the damage firstly appears in the intersection of top backfill and roof; the plastic failure area is mainly distributed in the roof and floor of inside the roadway; 2 m wide backfill in the goaf-side retained roadway can meet the requirements of roadway deformation. Based on the original combination support of 'anchor-mesh-belt-lock' in the haulage-track roadway, the study also considers the reinforced support of 'anchor-mesh-belt' above the backfill, and 50 m ahead of working face, and 200 m behind the working face. This kind of support achieves a good result. The roadway deformation of field measurement shows that it can satisfy the need of the next working face. | Xue Deping Wang Jianpeng Tu Hongsheng Wang Fangtian Zhao Jie | 2013 | International Journal of Mining Science and Technology2013，23，3： | 7 |
| 10 | Whole-genome sequencing to detect mutations associated with resistance to insecticides and Bt proteins in Spodoptera frugiperda显示文摘The fall armyworm(FAW),Spodoptera frugiperda,is a major pest native to the Americas that has recently invaded the Old World.Point mutations in the target-site proteins acetylcholinesterase-1(ace-1),voltage-gated sodium channel(VGSC)and ryanodine receptor(RyR)have been identified in S.frugiperda as major resistance mechanisms to organophosphate,pyrethroid and diamide insecticides respectively.Mutations in the adenosine triphosphate-binding cassette transporter C2 gene(ABCC2)have also been identified to confer resistance to Cry IF protein.In this study,we applied a whole-genome sequencing(WGS)approach to identify point mutations in the target-site genes in 150 FAW individuals collected from China,Malawi,Uganda and Brazil.This approach revealed three amino acid substitutions(A201S,G227A and F290V)of S.frugiperda ace-1,which are known to be associated with organophosphate resistance.The Brazilian population had all three ace-1 point mutations and the 227A allele(mean frequency=0.54)was the most common.Populations from China,Malawi and Uganda harbored two of the three ace-1 point mutations(A201S and F290V)with the 290V allele(0.47-0.58)as the dominant allele.Point mutations in VGSC(T929I,L932F and L1014F)and RyR(I4790M and G4946E)were not detected in any of the 150 individuals.A novel 12-bp insertion mutation in exon 15 of the ABCC2 gene was identified in some of the Brazilian individuals but absent in the invasive populations.Our results not only demonstrate robustness of the WGS-based genomic approach for detection of resistance mutations,but also provide insights for improvement of resistance management tactics in S.frugiperda. | Fang Guan Jianpeng Zhang Huiwen Shen Xingliang Wang Amanda Padovan Tom K.Walsh Wee Tek Tay Karl H.J.Gordon William James Cecilia Czepak Michael Hilary Otim Donald Kachigamba Yidong Wu | 2021 | Insect Science2021，28，3： | 6 |
| 11 | Why are oseltamivir and zanamivir effective against the newly emerged influenza A virus (A/HIN1)?显示文摘 | Kunqian Yu Cheng Luo Guangrong Qin Zhijian Xu Ning Li Hong Liu Xu Shen Jianpeng Ma Qinghua Wang Caiguang Yang Weiliang Zhu Hualiang Jiang | 2009 | Cell Research2009，19，10： | 6 |
| 12 | Atomically thin defect-rich Ni-Se-S hybrid nanosheets as hydrogen evolution reaction electrocatalysts显示文摘Facile design of economic-effective hydrogen evolution reaction(HER)catalysts with non-noble materials are promising for the production of renewable chemical fuels.Two-dimensional(2D)ultrathin transition metal dichalcogenides(TMDs)materials with large specific surface area and abundant catalytic active sites can significantly enhance their catalytic activities.Herein,we design and synthesize an atomically thin Ni-Se-S based hybrid nanosheet(NiSe1.2S0.8)via a simple solvothermal method,the thickness of NiSe1.2S0.8 nanosheets is only about 1.1 nm.Benefiting from the ultrathin nanostructure and rich defects,the optimal NiSe1.2S0.8 exhibits good electrocatalytic activity with the overpotential of 144 mV at−10 mA·cm−2,a small Tafel slope of 59 mV·dec−1,and outstanding catalytic stability in acid electrolyte for HER.The theoretical results show that hybrid electrocatalyst by S incorporation possesses the optimal adsorption free energy of hydrogen(ΔGH*).This study provides a simple method to synthesize a highperformance multicomponent electrocatalysts with the ultrathin nanostructures and abundant defects. | Jianpeng Sun Xiangting Hu Zhaodi Huang Tianxiang Huang Xiaokang Wang Hailing Guo Fangna Dai Daofeng Sun | 2020 | Nano Research2020，13，8： | 5 |
| 13 | In-situ optimizing the valence configuration of vanadium sites in NiV-LDH nanosheet arrays for enhanced hydrogen evolution reaction显示文摘Developing the highly active, cost-effective, environmental-friendly, and ultra-stable nonprecious electrocatalysts for hydrogen evolution reaction(HER) is distinctly indispensable for the large-scale practical applications of hydrolytic hydrogen production. Herein, we report the synthesis of well-integrated electrode, NiV layered double hydroxide nanosheet array grown in-situ on porous nickel foam(abbreviated as in-NiV-LDH/NF) via the facile one-step hydrothermal route. Interestingly, the valence configuration of vanadium(V) sites in such NiV-LDH are well dominated by the innovative use of NF as the reducing regulator, achieving the reassembled in-NiV-LDH/NF with a high proportion of trivalent V ions(V3+), and then an enhanced intrinsic electrocatalytic HER activity. The HER testing results show that the in-NiVLDH/NF drives the current densities of 10 and 100 mA cm-2 at extremely low overpotentials of 114 and 245 mV without iR-compensation respectively, even outperforms commercial 20 wt% Pt/C at the large current density of over 80 mA cm-2 in alkaline media, as well as gives robust catalytic durability of at least 100 h in both alkaline and neutral media. More importantly, this work provides a fresh perspective for designing bimetal(oxy) hydroxides electrocatalysts with efficient hydrogen generation. | Danyang He Liyun Cao Jianfeng Huang Koji Kajiyoshi Jianpeng Wu Changcong Wang Qianqian Liu Dan Yang Liangliang Feng | 2020 | Journal of Energy Chemistry2020，29，8： | 5 |
| 14 | Comparison of Pb(Ⅱ) and Cd(Ⅱ) micro-interfacial adsorption on fine sediment in the Pearl River Basin, China显示文摘The complex micro-interfacial interaction theories of heavy metal ions such as Pb(Ⅱ)and Cd(Ⅱ)adsorption on fine sediment in aqueous solution were not systematically investigated.The aim of this work was to reflect the micro-interfacial adsorption characteristics.Sediment samples were collected from an estuary.The Isothermal and kinetics adsorption experiment were done to acquire the data.Isothermal,kinetics,film diffusion and intraparticle diffusion models were adopted to fit the adsorption experimental data.The results indicated that the Langmuir,Freundlich and Temkin models were suitable for analyzing the isothermal experimental data.The maximum adsorption capacities of Pb(Ⅱ)and Cd(Ⅱ)on the sediment were 1.1377 and 0.9821 mg·g-1,respectively.The qm and KL of the Langmuir model,Kf and nF of the Freundlich model,and b and A of the Temkin model all exhibited a power function relationship with the initial adsorbate concentration.The pseudo-second-order model provided a better fit for the experimental kinetics data compared with the fit of the pseudo-first-order and Elovich models.The pseudo-second-order parameters k2 and qe of Pb(Ⅱ)and qe of Cd(Ⅱ)both had a power function relationship with adsorption time,additionally,the k2 of Cd(Ⅱ)had an exponential function relationship with adsorption time.The liquid-film diffusion parameters kfd of Pb(Ⅱ)and Cd(Ⅱ)were 0.0569 and 0.1806 min1,respectively.The intraparticle diffusion parameter kid values of Pb(Ⅱ)and Cd(Ⅱ)were 0.0055 mg$g1$min1/2 and 0.0049 mg$g1$min1/2,respectively.The physical significance of the model parameters showed that Pb(Ⅱ)adsorption on sediment was stronger than Cd(Ⅱ).The results of this study provided a theoretical reference for the micro-interfacial mechanism of heavy metal ion adsorption on sediment. | Qunsheng Fang Zhihe Chen Jianpeng Zheng Zhihua Zhu | 2021 | International Journal of Sediment Research2021，36，3： | 5 |
| 15 | Comparison of soil physico-chemical properties under different land-use and cover types in northeastern China's Horqin Sandy Land显示文摘The Horqin Sandy Land of northeastern China was originally a grassland with plenty of water and lush vegetation dominated by palatable grass species along with sparsely scattered woody species. However, it has experienced severe desertification in recent decades due to its fragile ecology together with inappropriate human activities. Currently, the landscape of the Horqin Sandy Land is dominated by irrigated croplands and sand dunes with different degrees of vegetation cover, as the region has become the most important part of the semiarid agro-pastoral ecotone of northern China. In this study, we compared soil physical and chemical properties under different land-use and cover types(irrigated cropland, rainfed cropland, sandy grassland, fixed dunes, and mobile dunes). We found that soil particle size distribution; organic C, total N, and total mineral element, microelement, and available microelement and nutrient contents; p H; CEC; and bulk density differed significantly among the land-use and cover types. In general, soil quality was highest in the cropland, intermediate in the sandy grassland, and lowest in the dunes. The most important soil quality attribute, soil organic carbon(SOC) storage, decreased in the following order: irrigated cropland(5,699 g/m^2) > sandy grassland(3,390 g/m^2) > rainfed cropland(2,411 g/m^2) > fixed dunes(821 g/m^2) > mobile dunes(463 g/m^2). SOC was significantly positively correlated with a large proportion of the other soil physico-chemical parameters. Our results suggest that the key issue in restoration of the degraded soils will be to increase SOC storage, which would also create a high potential for sequestering soil C in desertified areas of the Horqin Sandy Land. | YuQiang Li JianPeng Zhang XueYong Zhao TongHui Zhang YuLin Li XinPing Liu YinPing Chen | 2016 | Research in Cold and Arid Regions2016，8，6： | 4 |
| 16 | Transcriptome Analysis Reveals Clues into leaf-like flower mutant in Chinese orchid Cymbidium ensifolium显示文摘The floral morphology of Cymbidium ensifolium,a well-known orchid in China,has increasingly attracted horticultural and commercial attention.However,the molecular mechanisms that regulate flower development defects in C.ensifolium mutants are poorly understood.In this work,we examined a domesticated variety of C.ensifolium named‘CuiYuMuDan',or leaf-like flower mutant,which lacks typical characteristics of orchid floral organs but continues to produce sepal-to leaf-like structures along the inflorescence.We used comparative transcriptome analysis to identify 6234 genes that are differentially expressed between mutant and wild-type flowers.The majority of these differentially expre ssed genes are involved in membrane-building,anabolism regulation,and plant hormone signal transduction,implying that in the leaf-like mutant these processes play roles in the development of flower defects.In addition,we identified 152 differentially expre ssed transcription factors,including the bHLH,MYB,MIKC,and WRKY gene families.Moreover,we found 20 differentially expressed genes that are commonly involved in flower development,including MADS-box genes,CLAVATA3(CLV3),WUSCHEL(WUS),and PERIANTHIA(PAN).Among them,floral homeotic genes were further investigated by phylogenetic analysis and expression validation,which displayed distinctive spatial expression patterns and significant changes between the wild type and the mutant.This is the first report on the C.ensifolium leaf-like flower mutant transcriptome.Our results shed light on the molecular regulation of orchid flower development,and may improve our understanding of floral patterning regulation and advance molecular breeding of Chinese orchids. | Yonglu Wei Jianpeng Jin Xiani Yao Chuqiao Lu Genfa Zhu Fengxi Yang | 2020 | Plant Diversity2020，42，2： | 4 |
| 17 | First stirling-type cryocooler reaching lambda point of ~4He(2.17K) and its prospect in Chinese HUBS satellite project显示文摘The issue of 'missing baryons” is always an unsolved mystery in galaxy cosmology, and an important reason for the great uncertainty of the galaxies' formation and evolution. To find the 'missing' baryons, extra high-resolution spectral observation and imaging of the soft X-ray band (<1 kev) is required. However, the existing observation methods cannot meet this requirement. Therefore, Tsinghua University leads and proposes the Chinese 'Hot Universe Baryon Surveyor (HUBS)' satellite program. | Jue Wang Changzhao Pan Tong Zhang Kaiqi Luo Xiaotong Xi Xianlin Wu Jianpeng Zheng Liubiao Chen Junjie Wang Yuan Zhou Hai Jin Wei Cui | 2019 | Science Bulletin2019，64，4： | 3 |
| 18 | Development of metal-organic framework(MOF) decorated graphene oxide/Mg Al-layered double hydroxide coating via microstructural optimization for anti-corrosion micro-arc oxidation coatings of magnesium alloy显示文摘An efcient and simple in-situ growth strategy has been discovered for the preparation of highly reproducible and continuous symbiotic ZIF-8-based anticorrosion coating by using graphene oxide(GO)/Mg AlNO3layered double hydroxides(G/LDHs) buffer layer as a new type of connecting carrier based on micro-arc oxide(MAO) coating of AZ31 magnesium alloy. The components of ZIF-8 were adsorbed and bounded to the surface of the G/LDHs buffer layer-modified substrates to promote the nucleation of ZIF-8,thus growing a phase-pure, uniform, and good symbiosis ZIF-8 membrane. ZIF-8 particles with different growth times compensate for the grain boundary defects of the G/LDHs coating precursor buffer layer to different degrees. The prepared ZIF-8-based coating has excellent stability and corrosion resistance. The results demonstrate that the G/LDHs buffer layer provides a new channel for the MOF-modified MAO substrate of AZ31 magnesium alloy. It also proves that it is feasible to build high-performance anticorrosive coatings with MOF materials. | Yanning Chen Liang Wu Wenhui Yao Jiahao Wu Jianpeng Xiang Xiaowei Dai Tao Wu Yuan Yuan Jingfeng Wang Bin Jiang Fusheng Pan | 2022 | Journal of Materials Science & Technology2022，，35： | 3 |
| 19 | Fabrication and Growing Kinetics of Highly Dispersed Gadolinium Zirconate Nanoparticles显示文摘Highly dispersed gadolinium zirconate(GZ)nanoparticles with fluorite structure were successfully synthesized by co-precipitation method,and their phase composition and microstructure,formation mechanism,and grain growth kinetics were investigated.The results suggest that the nanoparticles were obtained through hydroxide dehydration and solid phase reaction.High dispersion was accomplished by ethanol solvent to reduce the hydrogen bond and sodium dodecyl benzene sulfonate(SDBS)surfactant to increase the electrostatic repulsion between the nanoparticles.The grain growth activation energy of GZ powders calcined at lower temperature(<1200°C)is 86.5 kJ/mol(Ql),and the grain growth activation energy of GZ powders calcined at higher temperature(>1200°C)is 148.4 kJ/mol(Qh).The current study shows that the optimal process to synthesize dispersed GZ nanoparticles includes ethanol solvent,3 wt.%SDBS surfactant,and 1100°C as calcining temperature. | Renbo Zhu Jianpeng Zou Jie Mao Xiaofeng Zhang Chunming Deng Min Liu Wenlong Chen | 2019 | Research and Application of Materials Science2019，1，1： | 3 |
| 20 | Geochemistry of arsenic and selenium in a Ge-poor coal from the Wulantuga coal-hosted Ge ore deposit,Inner Mongolia,North China显示文摘This paper reports new data for arsenic(As)and selenium(Se)in a total of twelve bench samples of Ge-rich and Ge-poor coals in the No.6 coal seam from the Wulantuga ore deposit,Inner Mongolia,Northeastern China.The Gepoor coals are characterized by low-ash(with a weighted average ash yield 10.59%).The coal samples were digested using an UltraClave microwave high pressure reactor(milestone)and trace elements were detected by inductively coupled plasma mass spectrometry—collision/reaction cell technology,a reliable method for As and Se determination in coal samples.The contents of As and Se in the Ge-poor(with a weighted average content of 9.14 and 0.30 lg/g,respectively)and Ge-rich coal samples in the present study(varies from 16.88 to 17,776 lg/g and from 0.26 to 14.39 lg/g,respectively)are in a sharp contrast.The As in the Ge-poor coals is of both organic-and pyrite-associations,and its enrichment is attributed to the sediment source,and to a lesser extent,to hydrothermal fluids.Se is predominantly connected with organic matter in the Wulantuga Ge-poor coals. | Panpan Xie Qingqian Li Jingjing Liu Hongjian Song Jianpeng Wei | 2014 | International Journal of Coal Science & Technology2014，1，4： | 3 |
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