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| 1 | The effect of forest harvesting and climatic variability on runoff in a large watershed: The case study in the Upper Minjiang River of Yangtze River basin显示文摘 | Mingfang Zhang Xiaohua Wei Pengsen Sun Shirong Liu | 2012 | Journal of Hydrology2012，，： | 4 |
| 2 | Mechanical properties,thermophysical properties and electronic structure of Yb^(3+)or Ce^(4+)-doped La_(2)Zr_(2)O_(7)-based TBCs显示文摘First-principles calculations based on density functional theory were perfo rmed to investigate the cohesive energies,elastic modulus,Debye temperatures,thermal conductivities and density of states of La_(2-x)Yb_(x)Zr_(2)O_(7),La_(2)Zr_(2-x)Ce_(x)O_(7)and La_(2-x)Yb_(x)Zr_(2-x)Ce_(x)O_(7)(x=0.00,0.25,0.50,0.75,1.00)ceramics.The results show that doping Yb~(3+)or Ce~(4+)into La_(2)Zr_(2)O_(7)reduces its elastic modulus,thermal conductivity and Debye temperature.Compared with La_(2-x)Yb_(x)Zr_(2)O_(7)(x≠0.00),La_(2)Zr_(2-x)Ce_(x)O_(7)compounds have better ductility and lower Debye te mperature.The Debye temperature values of La_(2)Zr_(2-x)Ce_(x)O_(7)(x≠0.00)co mpounds are in the range of 485.0-511.5 K.Among all components,the fluorite-type La_(2-x)Yb_(x)Zr_(2-x)Ce_(x)O_(7)(x=0.75,1.00)compounds exhibit better mechanical and thermophysical properties,and their thermal conductivity values are only 1.213-1.246 W/(m·K)(1073 K),which are 14.5%-16.7%lower than that of the pure La_(2)Zr_(2)O_(7).Thus,our findings open an entirely new avenue for TBCs. | Pengsen Zhao Haizhong Zheng Guifa Li Yongxiang Geng Yixin Xiao Hongbo Guo Ping Peng | 2023 | Journal of Rare Earths2023，41，4： | 2 |
| 3 | The State of the art surveys for application of metal magnetic memory testing in remanufacturing显示文摘 | Zhang Yuanliang Zhou Di Jiang Pengsen | 2011 | Advanced Materials Research2011，，： | 1 |
| 4 | The Key as Dictionary Compression Method of Inverted Index Table under the Hbase Database显示文摘 | Pengsen Cheng Junxiu An | 2013 | Journal of Software2013，，5： | 1 |
| 5 | The Key as Dictionary Compression Method of Inverted Index Table under the Hbase Database显示文摘 | Pengsen Cheng Junxiu An | 2013 | Journal of Software2013，，5： | 1 |
| 6 | The Key as Dictionary Compression Method of Inverted Index Table under the Hbase Database显示文摘 | Pengsen Cheng Junxiu An | 2013 | Journal of Software2013，，5： | 1 |
| 7 | Characteristics of Soil Seed Banks of Typical Plant Communities in Hilly Area of Funiu Mountain显示文摘[Objectives]The purpose was to investigate the characteristics of soil seed bank of typical plant communities in hilly area of Funiu Mountain.[Methods]The seed density,number of species and species composition of the soil seed bank of typical plant communities such as Themeda japonica,Imperata cylindrica,Vitex negundo,Quercus acutissima,Robinia pseudoacacia,Platycladus orientalis and Populus canadensis in the surface,top 0-5 and top 5-10 cm soil were studied.[Results]The seed reserves of plant communities at different succession stages were(220.00±95.39)–(2650.00±1064.52)seeds/m2.A total of 48 species were counted in the seed bank,belonging to 45 genera in 22 families.Total 27 species were identified in the above-ground vegetation,belonging to 25 genera in 14 families.In the shallow soil where the seeds gathered,the seed densities of Imperata cylindrica and Themeda japonica were relatively low.The reserves of plant communities with different naturalness degrees were(403.33±64.29)-(2110.00±356.79)seeds/m2.A total of 67 species were counted in the seed bank,belonging to 64 genera in 37 families.A total of 45 species were identified in the above-ground vegetation,belonging to 43 genera in 28 families.In the soil layers of 0-5 and 5-10 cm,the seed density of natural secondary Q.acutissima was higher than those of planted P.canadensis,P.orientalis and R.pseudoacacia.In each soil layer,the species number of natural secondary Q.acutissima forest was slightly smaller than those of planted P.canadensis,P.orientalis and R.pseudoacacia forests.[Conclusions]The seeds in the soil seed bank may not completely come from existing above-ground vegetation.Manual assistance is required for vegetation restoration or reconstruction relying on soil seed bank,to ensure the direction of community succession. | Yanjiao LI Pengsen CAI Weishuang TONG Huashan GAO Yan ZHAO Limin WANG | 2020 | Asian Agricultural Research2020，12，11： | 0 |
| 8 | Landscape pattern and eco-hydrological characteristics at the upstream of Minjiang River,China显示文摘Based on three scenes of Landsat 5 Thematic Mapper(TM)satellite images acquired on June 26,1994,12 land cover types were identified by the supervised classification techniques.The precipitation,runoff,and normalized difference vegetation index(NDVI)data of six catchments were accumulated from April to September in 1992,1993,and 1995.A new eco-hydrological index,expressed by the difference between precipitation and runoff divided by the product of precipitation and NDVI,was used in this study to represent the eco-hydrological functions of different catchments.The results were:(1)The selected six catchments at the upstream of Minjiang River,China were different in landscape patterns in terms of landscape type and cover.There were higher contagion,lower edge density and diversity index in the Shouxi catchments and lower contagion,higher edge density and diversity index in the Zagunao catchments.(2)Eco-hydrological indexes had remarkable differences among different catchments.The highest eco-hydrological index was found in the Shouxi catchments,which indicated higher precipitation holding capacity of vegetation therein.While the lower eco-hydrological index was found in the Zagunao catchments,which indicated its lower precipitation holding capacity of vegetation.(3)High correlation was detected between the landscape indexes and eco-hydrological indexes.Eco-hydrological index was positively correlated with landscape contagion in contrast with the negative correlation with landscape diversity and edge density. | LI Chongwei GE Jianping LIU Shirong SUN Pengsen | 2006 | Frontiers in Biology2006，1，4： | 0 |
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