Search Results - LI Ping

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Soil water is strongly affected by land use/cover in the Loess Plateau in China. Water stored in thick loessal soils is one of the most important resources regulating vegetation growth. However, soil water in the deep loess profile, which is critical for maintaining the function of the “soil water p...

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Climate change will place agro-ecological systems and food security at serious risk. At the 21st Conference of the Parties (COP21) in Paris in December of 2015, parties to the United Nations Framework Convention on Climate Change (UNFCCC) reached a historic agreement (Paris Agreement) to combat clim...

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Fresh fruit juice has become more and more popular, since it has high nutritional value, thus, more attention is paid to its quality. However, traditional test methods are often time-consuming and cumbersome, can not realize real-time detection and obtain accurate and overall information only with s...

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In order to understand the effect of heavy metal pollution on mineralization of soil organic matter and added plant materials, incubation experiments were conducted to study dynamics of mineralization and accumulation of particulate organic matter (POM) and microbial biomass C in three soils amended...

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In order to understand the enrichment mechanism of heavy metals in soil particulate organic matter (POM), four chemical species of Cu and Pb in the POM, including exchangeable, complex, organic tightly bound and mineral bound, were characterized by chemical selective extraction. As compared with &am...

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The physical and chemical heterogeneities of soils make the soil spectral different and complicated, and it is valuable to increase the accuracy of prediction models for soil organic matter (SOM) based on pre-classification. This experiment was conducted under a controllable environment, and differe...

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The effect of long-term straw return on crop yield, soil potassium (K) content, soil organic matter, and crop response to K from both straw and chemical K fertilizer (K2SO4) were investigated in a fixed site field experiment for winter wheat-summer maize rotation in 6 years for 12 seasons. The field...

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BackgroundDisruption of blood–brain barrier and neuroinflammation are critical pathological features in the acute phase of ischemic stroke. This study investigates whether oligodendrocyte precursor cell transplantation can downregulate inflammation to attenuate blood–brain barrier disruption followi...

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The kinetics of NH₄⁺ adsorption and desorption by a natural zeolite clinoptilotite were investigated. Kinetic models evaluated at different equilibrium NH4⁺ concentrations included the first-order kinetics, modified Freundlich, par...

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The attractants to Drosophila fly damaging Myrica rubra were screened in wind tunnel, by using Drosophila melanogaster as test fly with orthogonal experimental design. The results show that both different banana-attractants and sugar-vinegar-attractants had obvious attractive effect to the pest. Amo...

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In the suburb of Jinhua City, Zhejiang Province, China, 73 sites were sampled in the different habitats, the ecological importance values of the weeds in these sites were surveyed, and 34 morphological and ecological characters of exotic weeds, 12 environmental factors in these sites were also recor...

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The classification of Cartan type modular Lie superalgebras is the key of the classification of Lie superalgebras over a fields of prime characteristic. The Recognition Theorem established foundation for the classification of Lie algebras over a fields of prime characteristic. According to the theor...

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Erigeron philadelphicus is a new plant invader in the suburb of Shanghai. In order to understand better its physiological adaptability to different stresses, the relative membrane permeability, the concentrations of malonaldehyde (MDA), free proline, soluble sugar, and chlorophyll, as well as the ac...

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Radial basis function neural networks (RBF NNs) are one of the most useful tools in the classification of the sonar targets. Despite many abilities of RBF NNs, low accuracy in classification, entrapment in local minima, and slow convergence rate are disadvantages of these networks. In order to overc...

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In order to protect and restore wetland ecosystem, and improve the amount of production of the wetland, the caloric, existent energy value, annual net primary productivity and efficiency for solar energy utilization were measured in a dominant plant community at Binjiang wetland, Zhenjiang in the ye...

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The super-hydrophobic modification of metal materials surface can significantly improve their corrosion resistance.The super-hydrophobic aluminum surface was fabricated with chemical etching and electrochemical anodization.Super-hydrophobic structure was constructed on aluminum surface by one-step m...

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Steady outputs, high system efficiency and power density are significant for wireless charging systems.To meet the demand, this article introduces the two-cell interleaved Buck converter (IBC) to the wireless charging system (WCS). Combined with the closed-loop control, the constant current/const...

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