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| 1 | Spatial Heterogeneity of Soil Mineral Oxide Components in Depression Between Karst Hills,Southwest China显示文摘In karst regions,the spatial heterogeneity of soil mineral oxides and environmental variables is still not clear.We investigated the spatial heterogeneity of SiO2,Al2O3,Fe2O3,CaO,MgO,P2O5,K2O,and MnO contents in the soils of slope land,plantation forest,secondary forest,and primary forest,as well as their relationships with environmental variables in a karst region of Southwest China.Geostatistics,principal component analysis(PCA),and canonical correlation analysis(CCA)were applied to analyze the field data.The results show that SiO2was the predominant mineral in the soils(45.02%–67.33%),followed by Al2O3and Fe2O3.Most soil mineral oxide components had a strong spatial dependence,except for CaO,MgO,and P2O5in the plantation forest,MgO and P2O5in the secondary forest,and CaO in the slope land.Dimensionality reduction in PCA was not appropriate due to the strong spatial heterogeneity in the ecosystems.Soil mineral oxide components,the main factors in all ecosystems,had greater influences on vegetation than those of conventional soil properties.There were close relationships between soil mineral oxide components and vegetation,topography,and conventional soil properties.Mineral oxide components affected species diversity,organic matter and nitrogen levels. | DU Hu WANG Kelin PENG Wanxia ZENG Fuping SONG Tongqing ZHANG Hao LU Shiyang | 2014 | Chinese Geographical Science2014，24，2： | 9 |
| 2 | Effect of interaction between different CeO_(2)plane and platinum nanoparticles on catalytic activity of Pt/CeO_(2)in toluene oxidation显示文摘The plane exposure of support vitally affects the catalytic performance of the catalyst.In this work,CeO_(2)nanorods((110)plane exposure),nano-octahedrons((111)plane exposure)and nano-cubes((100)plane exposure)were prepared as the supports of Pt/CeO_(2)samples to investigate the effect of CeO_(2)plane exposure on total toluene oxidation.Characterizations reveal that the(110)plane of CeO_(2)is more helpful to the dispersion of Pt species,followed by(111)face.The improved dispersion of Pt species can enhance the metal-supports interaction,which promotes the electron transfer of CeO_(2)carrier to Pt nanoparticles and the adsorption-activation of O_(2),thereby facilitating the total oxidation of toluene via the Langmuir-Hinshelwood(L-H)mechanism.Therefore,Pt/CeO_(2)-r(nanorods)sample expresses excellent catalytic performance of toluene oxidation.Finally,the procedure of toluene total oxidation was studied by in-situ diffuse reflectance infrared Fourier transform(DRIFT)spectroscopy.We expect that this work can contribute to the development of an effective sample for the decomposition of volatile organic compounds(VOCs). | Shengsheng Chang Yong jia Yiqing Zeng Fuping Qian Lina Guo Shenghua Wu Jinli Lu Yunlong Han | 2022 | Journal of Rare Earths2022，40，11： | 6 |
| 3 | SF_(6)decomposition and insulation condition monitoring of GIE:A review显示文摘The statistics of the Conference International des Grands Reseaux Electriques(CIGRE)indicate that the operational reliability of SF6 gas‐insulated equipment(GIE)is very high;however,the failure rate of the GIE in operation is much higher than that of the IEC standard,and the fault occurs frequently in the GIE at a high voltage level.The reason is due to the complex and strong on‐site electromagnetic interference environment and fully enclosed structure of GIE.The key method and technology for effective on‐line monitoring and fault diagnosis of GIE are still lacking.Given the partial strong electromagnetic energy and high temperature induced by early latent insulation faults in the equipment,SF6 gas insulation presents different degrees of decomposition.The decomposition products mainly include SO_(2)F_(2),SOF_(2),SO_(2),HF,and H2S.The decomposition characteristics of SF6 are closely related to the property of insulation faults.At present,this area is attracting attention from the power industry and research institutes.This study summarises the current research on SF_(6)decomposition component analysis(DCA).The content mainly includes the latest progress of SF_(6)decomposition characteristics and mechanism under fault conditions,and fault diagnosis methods based on decomposition components. | Fuping Zeng Haotian Li Hongtu Cheng Ju Tang Yilu Liu | 2021 | High Voltage2021，6，6： | 3 |
| 4 | Decomposition characteristics of SF6 under thermal fault for temperatures below 400 degrees显示文摘 | Zeng Fuping Tang Ju Fan Qingtao | 2014 | IEEE Transactions on Electrical Insulation2014，21，3： | 1 |
| 5 | Correlation analysis between formation process of SF6 decomposed components and partial discharge qualities显示文摘 | Tang Ju Zeng Fuping Pan Jianyu | 2013 | IEEE Transactions on Dielectrics and Electrical Insulation2013，20，3： | 1 |
| 6 | Using d-s evidencetheory to evaluation of confidence in safety case显示文摘 | Fuping Zeng Manyan Lu Deming Zhong | 2013 | Journal ofTheoretical and Applied Information Technology2013，47，1： | 1 |
| 7 | Correlation analysis between formation process of SF6 decomposed components and partial discharge qualities显示文摘 | Tang Ju Zeng Fuping | 2013 | IEEE Transactions on Dielectrics and Electrical Insulation2013，20，3： | 1 |
| 8 | Natural resources utilization and intercorp patterns of the newly built orchard in the uncultivated sloping field-taking the experiment zone in Huang Jisng County,Guang Xi as an Example显示文摘 | Zeng Fuping Wang Kelin Li Lin | | Journal of mountain scienc0，，： | 1 |
| 9 | Field Identification and Prevention and Control Techniques of Citrus Huanglongbing of Orah Mandarin显示文摘In order to promote the development of Orah mandarin industry in Guangxi and reduce the harm of citrus huanglongbing to Orah mandarin,the pathogen,characteristics,occurrence regularity and field symptoms of citrus huanglongbing were summarized,and scientific prevention and control measures were put forward,such as strict implementation of quarantine system,cultivation and use of disease-free seedlings,strengthening field management,timely control of psyllid,timely removal of diseased trees,etc. | Qichun HUANG Nina WANG Huihong LIAO Wenshen LIANG Jimin LIU Hongming HUANG Fuping LIU Zelin QIN Zhikang ZENG 无 | 2022 | Plant Diseases and Pests2022，13，3： | 0 |
| 10 | Intelligent perception of power grid condition显示文摘In face of increasingly severe challenges in energy develop-ment,a secure,stable,green,and sustainable Energy Internet has become a development tendency,as a major technological innovation that promotes the transformation of the world's power and energy systems.The essence of Energy Internet is the deep integration of energy flow and information flow,which is the in‐depth perception and control of the energy network situation using advanced information technology.Electric energy equipment and its grid structure are the core of Energy Internet.Energy Internet needs to integrate all the information that can be collected to perceive the situation of power equipment and the entire grid deeply and accurately,so as to prevent sudden power outages caused by equipment failure or system instability,and to improve the reliability and economy of the entire Energy Internet. | Ju Tang Fuping Zeng | 2021 | High Voltage2021，6，6： | 0 |
| 11 | Soil properties and not plant factors affect both abundant and rare microbial taxa after thinning in a mixed stand of Cunninghamia lanceolata and Sassafras tzumu显示文摘Thinning is an effective management step for sustainable forest development,yet less attention is paid to the restoration of soil microbiota after thinning.In this study,both abundant and rare soil microbial communities(i.e.,bacterial,fungal),were evaluated under various thinning treatments in a mixed stand of Cunninghamia lanceolata and Sassafras tzumu using Mi Seq sequencing.Thinning did not significantly change either abundant or rare bacterial and fungal community composition,but affected their alpha diversity.The Shannon–Wiener indexes of rare fungal taxa under medium thinning were significantly lower than in the light thinning(P<0.05 level).Xanthobacteraceae dominated the abundant bacterial taxa,and Saitozyma and Mortierlla the abundant fungal taxa.The most common rare bacterial taxa varied;there was no prevalent rare fungal taxa under different thinnings.In addition,soil available nitrogen,total phosphorus,and p H had significant effects on rare bacterial taxa.Nutrients,especially available phosphorus,but not nitrogen,affected abundant and rare soil fungi.The results indicate that soil properties rather than plant factors affect abundant and rare microbial communities in soils of mixed stands.Thinning,through mediating soil properties,influences both abundant and rare bacterial and fungal communities in the mixed C.lanceolata and S.tzumu stand. | Wanxia Peng Tongqing Song Hu Du Feng Wang Fuping Zeng Yang Wang Shulin Chen Yinzhu Chen | 2024 | Journal of Forestry Research2024，35，2： | 0 |
| 12 | Environmental and spatial contributions to tree community assembly across life stages and scales in evergreen-deciduous broadleaf karst forests,southwest China显示文摘Spatial and environmental processes are two ecological processes that have attracted considerable attention in plant community assembly,depending on sampling scale and life history.However,the processes that determine community assembly have not been studied in the karst region of southwest China.In this study,a 25-ha(500 m×500 m)monitoring plot within the subtropical climax forest in the karst region was established and canonical correspondence analysis was used to reveal the effects of topography and soil on the spatial patterns of tree community assembly.Our study suggests that spatial processes dominate species composition and the combined effects of spatial and environmental processes play an important role.Overall interpretation rate increases with enlarging the sampling scale.However,the pattern of variation partitioning was similar in different life stages.Environmental variables significantly affected species composition at different sampling sizes and life histories and had a higher interpretation rate of species composition on larger s ampling sizes.Topographic wetness index was the most important variable to explain species composition of the environmental variables.These results suggest that it is necessary to consider the relative importance of environmental and spatial factors on community assembly to better understand,conserve,and manage subtropical karst forests. | Liang Su Hu Du Fuping Zeng Wanxia Peng Hua Wang Kelin Wang Menzhen Lu Tongqing Song | 2023 | Journal of Forestry Research2023，34，5： | 0 |
| 13 | A low-cost and high-performance self-trigger method for high-voltage transient measurement显示文摘Stable triggering of acquisition devices is critical to accurately measure electromagnetic transients,especially for very fast transient overvoltages(VFTOs).A highly stable and lowcos t self-trigger method for transient measurement is proposed.An integrated low-voltage arm module was developed to synchronously realise the triggering and VFTO measurement.The trigger branch was developed using a high-pass filter.This component obtained the high-frequency component of the VFTO to trigger the oscilloscope.The trigger branch was integrated with the measurement branch through an impedance converter.An attenuator was implemented before the impedance converter to avoid overvoltage damage to the chip.The circuit parameters of the attenuator were optimised to alleviate the disturbance of the measurement branch.The calibration results demonstrated that the±1 dB bandwidth of the measurement branch in this system ranged from 11.8 Hz to 105 MHz.The low cutoff frequency of the trigger branch was 710 Hz.The VFTO waveforms generated by the operation of a disconnector in a real 252 kV gas insulated switchgear were measured using the proposed system.The test results verified that the self-trigger measurement system can provide stable trigger signals and accurately measure the VFTO waveforms. | Hao Liu Guoming Ma Weiqi Qin Wei Wang Houxian Du Lei Wang Shicong Zhai Fuping Zeng Weixing Han | 2023 | High Voltage2023，8，2： | 0 |
| 14 | SF_(6) decomposition behaviour under partial discharge of typical insulation defects in gas-solid insulated valve-side bushing of converter transformer显示文摘In this paper we investigated SF_(6) decomposition behaviour of typical insulation defects in gas-solid insulated converter transformer valve-side bushing under partial discharge(PD).Additionally,we compared the results with that of gas insulated switchgear(GIS).The results indicated that SF_(6) decomposition behaviour varies with the insulation defects type.For metal protrusion defects,the proportion ranking of CO_(2) and SO_(2) can be related to whether the needle tip is wrapped with epoxy resin-impregnated paper(ERIP).The proportion of carbon-containing products is much higher under contamination defect than under other defects.Moreover,the proportion of carbon-containing components is higher under flashover condition than under PD condition and is accompanied by the appearance of H2S and CS_(2).However,the yield of SO_(2)F_(2) is always low.Compared to negative DC voltages,positive DC voltages have a higher proportion of carboncontaining components,mainly in the form of more CO_(2) and less SOF_(2).Compared to the PD decomposition behaviour of typical insulation defects in GIS,when PD involves ERIP,the proportion of carbon-containing products,especially CO_(2),is significant higher,while the proportion of sulphur containing products,especially SO_(2)F_(2),is lower. | Hongtu Cheng Fuping Zeng Bowen Tang Haotian Li Ju Tang Zujian Huang Xianzong Chao | 2023 | High Voltage2023，8，4： | 0 |
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