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| 1 | Phosphogypsum stabilization of bauxite residue:Conversion of its alkaline characteristics显示文摘Reduction of the high alkalinity of bauxite residue is a key problem to solve to make it suitable for plant growth and comprehensive utilization. In this study, phosphogypsum, a waste product from the phosphate fertilizer industry, was used to drive the alkaline transformation of the bauxite residue. Under optimal water washing conditions(liquid/solid ratio of 2 mL/g, 30°C, 24 hr), the impact of quantity added, reaction time and reaction mechanism during phosphogypsum application were investigated. Phosphogypsum addition effectively lowered p H levels and reduced the soluble alkalinity by 92.2%. It was found that the concentration of soluble Na and Ca ions in the supernatant increased gradually, whilst the exchangeable Na+and Ca^(2+)in solid phase changed 112 mg/kg and 259 mg/kg, respectively. Ca^(2+)became the dominant element in the solid phase(phosphogypsum addition of 2%, liquid/solid ratio of 2 mL/g, 30°C, 12 hr). X-ray diffraction data indicated that cancrinite and hydrogarnet were the primary alkaline minerals. SEM images suggested that phosphogypsum could promote the formation of stable macroaggregates, whilst the content of Ca^(2+)increased from 5.6% to 18.2% and Na reduced from 6.8% to 2.4%. Treatment with phosphogypsum could significantly promote the transformation of alkalinity cations by neutralization, precipitation and replacement reactions.This research provided a feasible method to promote soil formation of bauxite residue by phosphogypsum amendment. | Shengguo Xue Meng Li Jun Jiang Graeme J.Millar Chuxuan Li Xiangfeng Kong | 2019 | Journal of Environmental Sciences2019，31，3： | 35 |
| 2 | Effect of copper loading on texture,structure and catalytic performance of Cu/SiO_2 catalyst for hydrogenation of dimethyl oxalate to ethylene glycol显示文摘Cu/SiO2 catalysts prepared by a convenient and efficient method using the urea hydrolysis deposition-precipitation (UHDP) technique have been proposed focusing on the effect of copper loading.The texture,structure and composition are systematically characterized by ICP,FTIR,N 2-physisorption,N2O chemisorption,TPR,XRD and XPS.The formation of copper phyllosilicate is observed in Cu/SiO2 catalyst by adopting UHDP method,and the amount of copper phyllosilicate is related to copper loading.It is found the structure properties and catalytic performance is profoundly affected by the amount of copper phyllosilicate.The excellent catalytic activity is attributed to the synergetic effect between Cu0 and Cu +.DMO conversion and EG selectivity are determined by the amount of Cu0 and Cu+,respectively.The proper copper loading (30 wt%) provides with the highest ratio of Cu + /Cu0,giving rise to the highest EG yield of 95% under the reaction conditions of p=2.0 MPa,T=473 K,H2/DMO=80 and LHSV=1.0h-1. | Bo Zhang Shengguo Hui Suhua Zhang Yang Ji Wei Li Dingye Fang | 2012 | Journal of Natural Gas Chemistry2012，21，5： | 13 |
| 3 | Study on growth of coarse grains of diamond with high quality under HPHT显示文摘The growth of coarse grains of diamond was observed with graphite as carbon source and Fe80Ni20 alloy powder as catalyst at HPHT in a China-type SPD 6×1670T cubic high-pressure apparatus with highly exact control system. To synthesize coarse grains of diamond crystal with high quality,ad-vanced indirect heat assembly,powder catalyst technology and catalyst with optimal granularity were used. Especially the nucleation of diamond and the growth rate were strictly controlled by the opti-mized synthesis craft. At last,diamond crystals (about 0.85 mm) in the perfect hex-octahedron shape were successfully synthesized at ~5.4 GPa and ~1360℃ in 60 min. The characteristic of crystal growth with powder catalyst technology under HPHT was discussed. The results and techniques might be useful for production of coarse grains of diamond. | ZHOU ShengGuo ZANG ChuanYi MA HongAn LI XiaoLei ZHANG HeMin JIA XiaoPeng | 2009 | Chinese Science Bulletin2009，54，1： | 6 |
| 4 | Design and Analysis of Gecko-like Robot显示文摘Gecko-like robot(Geckobot),an important branch of bionic robotics,is a robot that simulates gecko's capacity to climb walls and ceilings.The work environment of the traditional wall-climbing robot is greatly limited as the moving structure and adsorption principle of the robot have nothing to do with the real gecko.However,the adsorption principle and moving mode of the real gecko can provide a new way to break through the restrictions of the traditional wall-climbing robot.Inspired by the moving mechanism of geckos, this paper develops the Geckobot with motile body.Two types of Geckobots are addressed:one with compliant flat bar as the body,and the other with prismatic joint as the body.The compliant body not only resembles the moving mode of the real gecko body,but also simplifies the Geckobot's structure.The prismatic joint body is used to adapt the change of body length in ground-to-wall transition. The gait planning on the plane and the transition between perpendicular intersectional planes is discussed,with an emphasis on the analysis of the kinematics degree of freedom(DOF) and body posture.Central pattern generator(CPG) neural network is realized in LabVIEW and utilized to control Geckobot's movement.The CPG scheme in Lab VIEW is given,and how CPG is used to control Geckobot to turn or move forward is explored.Simulations are conducted in ADAMS to verify the feasibility of the structure design and gait planning and to acquire some parameters for practical Geckobot development.The experiment with Geckobot-Ⅰand Geckobot-Ⅱon their crawling capacity on the plane and the ground-to-wall transition finds that the robot can complete the crawling movement and ground-to-wall transition,verifying the feasibility of the structure design,gait planning and the CPG motion control.The Geckobot structure design approach,gait planning and the CPG motion control presented would be useful for the research on wall-climbing robots. | MENG Cai WANG Tianmiao GUAN Shengguo ZHANG Long WANG Jing LI Xiaohu | 2011 | Chinese Journal of Mechanical Engineering2011，24，2： | 6 |
| 5 | Brief Introduction of TianHe Exascale Prototype System显示文摘Facing the challenges of the next generation exascale computing,National University of Defense Technology has developed a prototype system to explore opportunities,solutions,and limits toward the next generation Tianhe system.This paper briefly introduces the prototype system,which is deployed at the National Supercomputer Center in Tianjin and has a theoretical peak performance of 3.15 Pflops.A total of 512 compute nodes are found where each node has three proprietary CPUs called Matrix-2000+.The system memory is 98.3 TB,and the storage is 1.4 PB in total. | Ruibo Wang Kai Lu Juan Chen Wenzhe Zhang Jinwen Li Yuan Yuan Pingjing Lu Libo Huang Shengguo Li Xiaokang Fan | 2021 | Tsinghua Science and Technology2021，26，3： | 5 |
| 6 | Soil heavy metal pollution from Pb/Zn smelting regions in China and the remediation potential of biomineralization显示文摘Smelting activities pose serious environmental problems due to the local and regional heavy metal pollution in soils they cause. It is therefore important to understand the pollution situation and its source in the contaminated soils. In this paper, data on heavy metal pollution in soils resulting from Pb/Zn smelting(published in the last 10 years) in China was summarized. The heavy metal pollution was analyzed from a macroscopic point of view. The results indicated that Pb, Zn, As and Cd were common contaminants that were present in soils with extremely high concentrations. Because of the extreme carcinogenicity, genotoxicity and neurotoxicity that heavy metals pose, remediation of the soils contaminated by smelting is urgently required. The primary anthropogenic activities contributing to soil pollution in smelting areas and the progressive development of accurate source identification were performed. Due to the advantages of biominerals, the potential of biomineralization for heavy metal contaminated soils was introduced. Furthermore, the prospects of geochemical fraction analysis, combined source identification methods as well as several optimization methods for biomineralization are presented, to provide a reference for pollution investigation and remediation in smelting contaminated soils in the future. | Xinghua Luo Chuan Wu Yongcheng Lin Waichin Li Min Deng Jingqiang Tan Shengguo Xue | 2023 | Journal of Environmental Sciences2023，，3： | 5 |
| 7 | A practical method for identifying key factors in the distribution and formation of heavy metal pollution at a smelting site显示文摘Smelting activities are the main pathway for the anthropogenic release of heavy metals(HMs)into the soil-groundwater environment.It is vital to identify the factors affecting HMs pollution to better prevent and manage soil pollution.The present study conducted a comprehensive investigation of HMs in soil from a large abandoned Zn smelting site.An integrated approach was proposed to classify and quantify the factors affecting HMs pollution in the site.Besides,the quantitative relationship between hydrogeological characteristics,pollution transmission pathways,smelting activities and HMs pollutionwas established.Results showed that the soils were highly contaminated by HMs with a pollution index trend of As>Zn>Cd>Pb>Hg.In identifying the pollution hotspots,we conclude that the pollution hotspots of Pb,As,Cd,and Hg present a concentrated distribution pattern.Geo-detector method results showed that the dominant driving factors for HMs distribution and accumulation were the potential pollution source and soil permeability.Additionally,the main drivers are variable for different HMs,and the interaction among factors also enhanced soil HMs contamination.Our analysis illustrates how the confounding influences from complex environmental factors can be distilled to identify key factors in pollution formation to guide future remediation strategies. | Jiaqing Zeng Wenshun Ke Min Deng Jingqiang Tan Chuxuan Li Yizhi Cheng Shengguo Xue | 2023 | Journal of Environmental Sciences2023，，5： | 3 |
| 8 | A family net of giant pandas in the Tangjiahe Natural Reserve:Assessment of current individual migration显示文摘In the present study, formalin-fixed feces, oli-gonucleotide fingerprinting and SRY-gene based sexing were used to construct a family net for giant pandas in the Tang-jiahe Natural Reserve and to assess contemporary gene flow (migration) in this population. A total of 124 fecal samples were attributed to 37 individuals (22 females and 15 males) that were then analyzed for family relationships. Based on DNA fingerprints, the deduced family net revealed the fol-lowing facts: (i) First-order relatives possessed similarities from 50% to 90%, and similarities between unrelated indi-viduals or distant relatives were as high as 77%, indicating that the Tangjiahe pandas are characterized by high genetic similarity; (ii) 15 matings were identified and 5 ones oc-curred between close relatives, implying that there is poten-tial for inbreeding to impact the pandas; (iii) four mating pairs and 5 offspring presented long distance migrations, demonstrating the intra-reserve habitat is continuous; (iv) four pairs of full sibs (also female-male dyads) dispersed short distance and all of them gave birth to highly inbred offspring, reflecting long distance migration is vital for in-breeding avoidance; (v) 17 adult individuals dispersed short or moderate distance and formed three clusters on the land-scape, indicating that it is necessary to find out whether there is a negative factor impacting the pandas. | WAN Qiuhong FANG Shengguo LI Jianguo ZHANG Liming OU Weifu XIAN Fanghai CHEN Wanli | 2005 | Chinese Science Bulletin2005，50，17： | 3 |
| 9 | In situ IR study of dimethyl oxalate hydrogenation to ethylene glycol over Cu/SiO_2 catalyst显示文摘The mechanism of dimethyl oxalate hydrogenation to ethylene glycol over Cu/SiO2 catalyst was investigated by in situ Fourier transform infrared(FTIR)spectroscopy.It was found that dimethyl oxalate and methyl glycolate proceeded via dissociative adsorption on Cu/SiO2 catalyst,and four main intermediates,CH3OC(O)(O)C-M(1655 cm-1),M-C(O)(O)C-M(1618 cm-1),HOCH2(O)C-M(1682 cm-1)and CH3O-M(2924-2926 cm-1),were identified during the reaction.It was concluded that dimethyl oxalate hydrogenation to ethylene glycol mainly proceeded along the route:dimethyl oxalate →CH3OC(O)(O)C-M→ methyl glycolate →HOCH2(O)C-M→ ethylene glycol.Finally a schematic reaction network was proposed. | Shengguo Hui Bo Zhang Suhua Zhang Wei Li | 2012 | Journal of Natural Gas Chemistry2012，21，6： | 2 |
| 10 | Variation on leaching behavior of caustic compounds in bauxite residue during dealkalization process显示文摘Bauxite residue,a byproduct of alumina manufacture,is a serious environmental pollutant due to its high leaching contents of metals and caustic compounds.Four typical anions of CO3^2-,HCO3^-,Al(OH)4^- and OH-(represented caustic compounds) and metal ions(As,B,Mo and V) were selected to assess their leaching behavior under dealkalization process with different conditions including liquid/solid ratio(L/S ratio),temperature and leaching time.The results revealed that washing process could remove the soluble composition in bauxite residue effectively.The leaching concentrations of typical anions in bauxite residue decreased as follows:c(CO3^2-)> c(HCO3^-)> c[Al(OH)4-]> c(OH-).L/S ratio had a more significant effect on leaching behavior of OH-,whilst the leaching concentration of Al(OH)4-varied larger underleaching temperature and time treatment.Under the optimal leaching,the total alkaline,soluble Na concentrations,exchangeable Ca concentrations were 79.52,68.93,and 136.0 mmol/L,respectively,whilst the soluble and exchangeable content of As,B,Mo and V in bauxite residue changed slightly.However,it should be noted that water leaching has released metal ions such as As,B,Mo and V in bauxite residue to the surrounding environment.The semiquantitative analysis of XRD revealed that water leaching increased the content of gismondine from 2.4% to 6.4%.The SEM images demonstrated the dissolution of caustic compounds on bauxite residue surface.The correlation analysis indicated that CO3^2- and HCO3^- could effectively reflect the alkalinity of bauxite residue,and may be regarded as critical de alkalization indicators to evaluate alkalinity removal in bauxite residue. | Yujun Wu Meng Li Feng Zhu William Hartley Jiaxin Liao Wenhui An Shengguo Xue Jun Jiang | 2020 | Journal of Environmental Sciences2020，32，6： | 2 |
| 11 | Sustainahility of the south China tiger: Implications of inbreeding depression and introgression显示文摘 | Xu Yanchun Fang Shengguo Li Zhongkui | 2007 | Conservation Genetics2007，8，5： | 1 |
| 12 | Application of high-speed counter-current chromatography coupled with high performance liquid chromatography for the separation and purification of Quercetin-3-O-sambubioside from the leaves of Nelumbo nucifera显示文摘Quercetin-3-O-sambubioside[Quercetin-3-O-β-D-xylopyranosyl(1→2)-β-D-glucopyranoside]was separated and purified by semi-preparative high-speed counter-current chromatography(HSCCC)with a twophase-solvent system composed of ethyl acetate-nbutanol-water(4∶1∶5,v/v)from the leaves of Nelumbo nucifera(Lotus).A total of 5.0 mg of the targeted compound with a purity of 98.6%as determined by high performance liquid chromatography(HPLC)was obtained from 100 mg of the crude extract cleaned up by AB-8 macroporous resin in a one-step separation.Quercetin-3-O-sambubioside was a novel flavonoid glycoside from the leaves of Nelumbo nucifera,and its chemical structure was identified by means of ESI-MS,1D NMR and 2D NMR. | Shengguo DENG Zeyuan DENG Yawei FAN Jing LI Rong LIU Dongmei XIONG | 2009 | Frontiers of Chemical Science and Engineering2009，3，4： | 1 |
| 13 | Rhodium(Ⅱ)-Catalyzed [4+3] Cyclization of Triazoles with Indole Derivatives and Its Application in the Total Synthesis of (±)-Aurantioclavine显示文摘An efficient rhodium(Ⅱ)-catalyzed[4+3]cyclization reaction of 1-sulfonyl-1,2-3-triazoles and indoles was developed.Azepino[5,4,3-ccflindoles,which are widely distributed in ergot alkaloids with various biological activities,could be obtained in good to excellent yields.In addition,the total synthesis of(±)-aurantioclavine was completed in four steps from the known compound 1a adopting this[4+3]cyclization as a key step. | Shengguo Duan Bing Xue Hui Meng Zihang Ye Ze-Feng Xu Chuan-Ying Li | 2021 | Chinese Journal of Chemistry2021，39，5： | 1 |
| 14 | First Isolation and Characterization of Ochrobactrum anthropi from Pig显示文摘One Gram-negative Bacillus was isolated from a brain sample of a pig with neurological symptoms.Pathological examination showed meningitis at necropsy. Ochrobactrum anthropi (O. anthropi) was successfully isolated from the brain sample and was confirmed by biochemical reaction results (API 20 NE) and gene sequencing. The strain was highly resistant to b-lactam antibiotics. Mice were experimentally infected with O. anthropi and showed typical meningitis. This is the first report on O. anthropi isolated from a pig, and indicates that O. anthropi may have a broader host spectrum of infection. | Shijiang Gu Ruiqing Hou Shengguo Gao Zhe Sun Xiangdong Li Lufeng Zhai Yunyun Jin Qiaoyan Zhu Yonghong Liao Kegong Tian | 2020 | Engineering2020，6，1： | 1 |
| 15 | The dynamic development of bacterial community following long-term weathering of bauxite residue显示文摘Bauxite residue is the industrial waste generated from alumina production and commonly deposited in impoundments.These sites are bare of vegetation due to the extreme high salinity and alkalinity,as well as lack of nutrients.However,long term weathering processes could improve residue properties to support the plant establishment.Here we investigate the development of bacterial communities and the geochemical drivers in bauxite residue,using Illumina high-throughput sequencing technology.Long term weathering reduced the pH in bauxite residue and increased its nutrients content.The bacterial community also significantly developed during long term weathering processes.Taxonomic analysis revealed that natural weathering processes encouraged the populations of Proteobacteria,Chloroflexi,Acidobacteria and Planctomycetes,whereas reducing the populations of Firmicutes and Actinobacteria.Redundancy analysis(RDA)indicated that total organic carbon(TOC)was the dominant factors affecting microbial structure.The results have demonstrated that natural weathering processes improved the soil development on the abandoned bauxite residue disposal areas,which also increased our understanding of the correlation between microbial variation and residue properties during natural weathering processes in Bauxite residue disposal areas. | Hao Wu Li Chen Feng Zhu William Hartley Yifan Zhang Shengguo Xue | 2020 | Journal of Environmental Sciences2020，32，4： | 1 |
| 16 | Novel silica tube/polyimide composite films with variable low dielectric constant 显示文摘 | Zhang Yihe Lu Shengguo Li Yuanqing etal | 2005 | Advanced Materials2005，17，8： | 1 |
| 17 | Allogeneic bone marrow–derived flk-1 + Sca-1 ? mesenchymal stem cells leads to stable mixed chimerism and donor-specific tolerance显示文摘 | Weimin Deng Qin Han Lianming Liao Changhong Li Wei Ge Zhigang Zhao Shengguo You Hongye Deng Robert C.H. Zhao | 2004 | Experimental Hematology2004，，9： | 1 |
| 18 | Remediation of arsenic-contaminated paddy field by a new iron oxidizing strain(Ochrobactrum sp.)and iron-modified biochar显示文摘Iron-oxidizing strain(FeOB)and iron modified biochars have been shown arsenic(As)reme-diation ability in the environment.However,due to the complicated soil environment,few field experiment has been conducted.The study was conducted to investigate the potential of iron modified biochar(BC-FeOS)and biomineralization by a new found FeOB to remediate As-contaminated paddy field.Compared with the control,the As contents of G_(B)(BC-FeOS),G_(F)(FeOB),G_(FN)(FeOB and nitrogen fertilizer),G_(BF)(BC-FeOS and FeOB)and G_(BFN)(BC-FeOS,FeOB and nitrogen fertilizer)treatments in pore water decreased by 36.53%-80.03%and the microbial richness of iron-oxidizing bacteria in these treatments increased in soils at the rice maturation stage.The concentrations of available As of G_(B),G_(F),G_(FN),G_(BF) and G_(BFN) at the tillering stage were significantly decreased by 10.78%-55.48%.The concentrations of non-specifically absorbed and specifically absorbed As fractions of G_(B),G_(F),G_(FN),G_(BF) and G_(BFN) in soils were decreased and the amorphous and poorly crystalline hydrated Fe and Al oxidebound fraction was increased.Moreover,the As contents of G_(B),G_(F),G_(FN),G_(BF) and G_(BFN) in rice grains were significantly decreased(*P<0.05)and the total As contents of G_(FN),G_(BF) and G_(BFN) were lower than the standard limit of the National Standard for Food Safety(GB 2762-2017).Compared with the other treatments,G_(BFN) showed the greatest potential for the effective remediation of As-contaminated paddy fields. | Kaikai Wu Chuan Wu Xingxing Jiang Rui Xue Weisong Pan Wai-Chin Li Xinghua Luo Shengguo Xue | 2022 | Journal of Environmental Sciences2022，34，5： | 1 |
| 19 | Alkalinity neutralization and structure upgrade of bauxite residue waste via synergistic pyrolysis with biomass显示文摘Bauxite residues,a large volume solid waste,are in urgent need of effective disposal and management.Especially,strategies to alleviate the high alkalinity of bauxite residue remain a big challenge.Here,we developed a synergistic pyrolysis to neutralize the alkalinity of bauxite residue and upgrade the structure of biomass simultaneously.By cooperating the catalytic feature from bauxite residue,rice straw,a cellulose-enriched biomass,could prefer to produce acidic components under a hypothermal pyrolysis temperature(below 250℃)and partial oxygen-contained atmosphere as evidenced by the synchronous TGA-FTIR analysis.In return,these in-situ produced acidic components neutralized the bauxite residue profoundly(pH decreased from 11.5 to 7.2)to obtain a neutral product with long-term water leaching stability.Also,a higher pyrolysis temperature led to neutral biochar-based products with well-defined carbonization characteristics.Thus,the biomass-driven pyrolysis strategy provides a potential to dispose the alkalinity issue of bauxite residue and further opportunities for the sustainable reuse and continuing management of bauxite residue. | Chuxuan Li Lu Tang Jun Jiang Feng Zhu Jingju Zhou Shengguo Xue | 2020 | Journal of Environmental Sciences2020，32，7： | 1 |
| 20 | SVM based real-time fault diagnosis model for aero engine显示文摘 | Wang Xuhui Huang Shengguo Cao Li | 2009 | Journal of Southwest Jiaotong University2009，126，1： | 1 |
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