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| 1 | A new procedure to estimate the rainfall erosivity factor based on Tropical Rainfall Measuring Mission(TRMM) data显示文摘Soil erosion by water is the most important land degradation problem worldwide.In this paper a new procedure was developed to estimate the rainfall-runoff erosivity factor(R)based on Tropical Rainfall Measuring Mission(TRMM)satellite-estimated precipitation data,which consists of 3-h rainfall intensity data.In this method,R was calculated as the product of the maximum 180-min rainfall intensity and the rainfall energy.This procedure was applied to the Daling River basin in Liaoning Province,China,R in terms of yearly,monthly and event-based rainfall in 2005 was computed separately using TRMM 3B42 data.The TRMM data showed a significant correlation with the interpolated rain-gauge data.Furthermore,because the TRMM data are based on rainfall intensity,they can represent the impact on erosion more accurately.It reflects both the spatial distribution and the intensity of rainfall.The procedure is a new approach to estimate the rainfall erosivity for soil water erosion modeling,especially in areas lacking rain-gauge stations. | ZHU Qiang CHEN XiuWan FAN QiXiang JIN HePing LI JiRen | 2011 | Science China(Technological Sciences)2011,54,9: | 15 |
| 2 | Preparation and electrochemical performance of MWCNTs@MnO_2 nanocomposite for lithium ion batteries显示文摘Tubular nanocomposite with interconnected MnO2 nanoflakes coated on MWCNTs(MWCNTs@MnO2)was fabricated by an aqueous solution method at 80°C.Scanning electron microscopy,X-ray diffraction and galvanostatic charge-discharge tests were used to characterize the structures and electrochemical performances of the as-prepared nanocomposite.The capacity reaches 1233.6 mA h g-1 at a current density of 100 mA g-1 for the first discharge,and it can still maintain a capacity of 633.1mA h g-1 after 100 charge-discharge cycles.The results show that MWCNTs with good electrical conductivity as anchors of MnO2 can provide fast electron transport channels for MnO2 in the electrochemical reactions,and the as-prepared MWCNTs@MnO2 nanocomposite is a potential anode material for lithium ion batteries. | LIU YingQi LI XiuWan WEI ZhiWei ZHANG LiPing WEI XiuCheng HE DeYan | 2014 | Science China(Technological Sciences)2014,57,6: | 2 |
| 3 | Simulation study of underwater passive navigation system based on gravity gradient显示文摘 | Feizhou Zhang Xiuwan Chen | 2004 | Geoscience and Remote Sensing Symposium2004,,: | 1 |
| 4 | Simulation study of un- derwater passive navigation system based on gravity gradient显示文摘 | Feizhou Zhang Xiuwan Chen | 2004 | IEEE2004,5,: | 1 |
| 5 | Boosting the Electrochemical Performance of Li-and Mn-Rich Cathodes by a Three-in-One Strategy显示文摘There are plenty of issues need to be solved before the practi-cal application of Li-and Mn-rich cathodes,including the detrimental voltage decay and mediocre rate capability,etc.Element doping can e ectively solve the above problems,but cause the loss of capacity.The introduction of appropriate defects can compensate the capacity loss;however,it will lead to structural mismatch and stress accumulation.Herein,a three-in-one method that combines cation–polyanion co-doping,defect construction,and stress engineering is pro-posed.The co-doped Na^(+)/SO_(4)^(2-)can stabilize the layer framework and enhance the capacity and voltage stability.The induced defects would activate more reac-tion sites and promote the electrochemical performance.Meanwhile,the unique alternately distributed defect bands and crystal bands structure can alleviate the stress accumulation caused by changes of cell parameters upon cycling.Consequently,the modified sample retains a capacity of 273 mAh g^(-1)with a high-capacity retention of 94.1%after 100 cycles at 0.2 C,and 152 mAh g^(-1)after 1000 cycles at 2 C,the corresponding voltage attenuation is less than 0.907 mV per cycle. | Wei He Fangjun Ye Jie Lin Qian Wang Qingshui Xie Fei Pei Chenying Zhang Pengfei Liu Xiuwan Li Laisen Wang Baihua Qu Dong-Liang Peng | 2021 | Nano-Micro Letters2021,13,12: | 1 |
| 6 | Object-oriented Information Extraction and Application in High-resolution Remote Sensing Image显示文摘 | Wenxia WEI Xiuwan Chen Ainai Ma | | 0,,11: | 1 |
| 7 | Genome sequence, full-length infectious cDNA clone, and mapping of viral double stranded RNA accumulation determinant of hypovirus CHV1- EP721显示文摘 | Lin Haiyan Iron Xiuwan Liao Hong | 2007 | J Virol2007,81,: | 1 |
| 8 | Intelligent scheduling of public traffic vehicles based on hybrid genetic algorithm显示文摘 | Zhang Feizhou Yang Dongkai Chen Xiuwan | 2003 | Intelligent Transportation Systems2003,2,1: | 1 |
| 9 | Study on performance of PVDF piezoelectric film for the separator in Li-ion rechargeable cell显示文摘The properties of piezoelectric PVDF films as separators are studied in NiO/Li electrodes Li-ion power cell.The results show that the PVDF piezoelectric film with excellent insulation is suitable for the environmental energy harvesting application.This is attributable to the compact structure of the piezoelectric PVDF film,and which make it has low leakage current and low charge-discharge current characteristics. | LIU YingQi LI XiuWan WEI XiuCheng HE DeYan | 2013 | Science China(Technological Sciences)2013,56,11: | 1 |
| 10 | Using remote sensing and GIS to analyse land cover change and its impacts on regional sustainable development显示文摘 | Chen Xiuwan | 2002 | Intemafional Journal of Remote Sensing2002,23,1: | 1 |
| 11 | THE APPLICATION OF SATELLITE POSITIONING TECHNOLOGY AND ITS INDUSTRIALIZATION IN CHINA显示文摘Satellite positioning technology has been widely used in all kinds of military and civil land, marine, space and aeronautical target positioning tasks, naviga tion activities and accurate surveying measurements since 90 s in the last cen tury due to its advantage in providing all-weather, real-time, three dimensional and high precision positioning information, as well as speed and accurate timing information. By now, it has already formed a new hi-tech industry basically.This paper briefly reviews the development of the global satellite positioning and navigation technologies including the basic information of China's 'Plough navigation system', introduces the history of satellite positioning technology and its major application fields as well as the status quo of this being industri alized trade in China, gives an account of the writers' vision for the application and prospect of the satellite positioning technologies in China, and approaches the tactics and stresses of the satellite positioning technology's application and its industrialization future in China. | ZHENG Lizhong CHEN Xiuwan | 2002 | 空间科学学报2002,22,z1: | 0 |
| 12 | Evaluation of nine machine learning methods for estimating daily land surface radiation budget from MODIS satellite data显示文摘The all-wave net radiation(Rn)at the land surface represents surface radiation budget and plays an important role in the Earth's energy and water cycles.Many studies have been conducted to estimate from satellite top-of-atmosphere(TOA)data using various methods,particularly the application of machine learning(ML)and deep learning(DL).However,few studies have been conducted to provide a comprehensive evaluation about various ML and DL methods in retrieving.Based on extensive in situ measurements distributed at mid-low latitudes,the corresponding Moderate Resolution Imaging Spectroradiometer(MODIS)TOA observations,and the daily from the fifth generation of European Centre for Medium-Range Weather Forecasts Reanalysis 5(ERA5)used as a priori knowledge,this study assessed nine models for daily estimation,including six classic ML methods(random forest-RF,adaptive boosting-Adaboost,extreme gradient boosting-XGBoost,multilayer perceptron-MLP,radial basis function neural network-RBF,and support vector machine-SVM)and three DL methods(multilayer perceptron neural network with stacked autoencoders-SAE,deep belief network-DBN and residual neural network-ResNet).The validation results showed that the three DL methods were generally better than the six ML methods except XGBoost,although they all performed poorly in certain conditions such as winter days,rugged terrain,and high elevation.ResNet had the most robust performance across different land cover types,elevations,seasons,and latitude zones,but it has disadvantages in practice because of its highly configurable implementation environment and low computational efficiency.The estimated daily values from all nine models were more accurate than the corresponding Global LAnd Surface Satellite(GLASS)product. | Shaopeng Li Bo Jiang Shunlin Liang Jianghai Peng Hui Liang Jiakun Han Xiuwan Yin Yunjun Yao Xiaotong Zhang Jie Cheng Xiang Zhao Qiang Liu Kun Jia | 2022 | International Journal of Digital Earth2022,15,1: | 0 |
| 13 | Bilayer carbon-based structure with the promotion of homogenous nucleation for lithium metal anodes显示文摘Lithium metal anodes (LMAs) are considered as the promising alternatives for next-generation high energy density batteries,but are still hampered by the severe growth of uncontrollable lithium dendrites.The growth of lithium dendrites induces poor cycling lifespan and serious safety concerns,dragging lithium metal batteries out of practical applications.We designed a bilayer carbonbased structure covered with Co/C nanosheets and vertical graphene sheets (VGS).The enormous specific surface area and uniformly distributed Co nanoparticles of the CC@Co/C-VGS host are derived from its unique design,which can reduce local current density and nucleation overpotential,resulting in a dendrite-free morphology and exceptional cycling stability.Symmetric cells exhibit over 400 cycles (800 h) at a high current density/capacity of 10 mA cm^(-2)/10 mA h cm^(-2).Full cells using LiFePO_(4)as the cathode have an enhanced rate capability and a prolonged lifespan,reaching 90 mA h g^(-1)after 1000 cycles at 2 C with 73.5% capacity retention.This unique design sheds light on developing high-performance LMAs. | SHAO YeQing XIE YongHui YANG Yang CAO JiaQi LI XiuWan LI WangYang ZHANG QiaoLi CHENG ShouLin CHENG ShuYing WANG XingHui | 2022 | Science China(Technological Sciences)2022,65,7: | 0 |
| 14 | Significant discrepancies of land surface daily net radiation among ten remotely sensed and reanalysis products显示文摘Land surface all-wave net radiation(R_(n))is crucial in determining Earth’s climate by contributing to the surface radiation budget.This study evaluated seven satellite and three reanalysis long-term land surface R_(n)products under different spatial scales,spatial and temporal variations,and different conditions.The results showed that during 2000-2018,Global Land Surface Satellite Product(GLASS)-Moderate Resolution Imaging Spectroradiometer(MODIS)performed the best(RMSE=25.54 Wm^(-2),bias=-1.26 Wm^(-2)),followed by ERA5(the fifth-generation of European Centre for Medium-Range Weather Forecast Reanalysis)(RMSE=32.17 Wm^(-2),bias=-4.88 Wm^(-2))and GLASS-AVHRR(Advanced Very-High-Resolution Radiometer)(RMSE=33.10 Wm^(-2),bias=4.03 Wm^(-2)).During 1983-2018,GLASS-AVHRR and ERA5 ranked top and performed similarly,with RMSE values of 31.70 and 33.08 Wm^(-2)and biases of-4.56 and 3.48 Wm^(-2),respectively.The averaged multi-annual mean R_(n)over the global land surface of satellite products was higher than that of reanalysis products by about 10~30 Wm^(-2).These products differed remarkably in long-term trends variations,particularly pre-2000,but no significant trends were observed.Discrepancies were more frequent in satellite data,while reanalysis products showed smoother variations.Large discrepancies were found in regions with high latitudes,reflectance,and elevation which could be attributed to input radiative components,meteorological variables(e.g.,cloud properties,aerosol optical thickness),and applicability of the algorithms used.While further research is needed for detailed insights. | Xiuwan Yin Bo Jiang Shunlin Liang Shaopeng Li Xiang Zhao Qian Wang Jianglei Xu Jiakun Han Hui Liang Xiaotong Zhang Qiang Liu Yunjun Yao Kun Jia Xianhong Xie | 2023 | International Journal of Digital Earth2023,16,1: | 0 |