Risheng Li

ORCID: 0000-0002-8291-197X
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Research Areas
  • Ion-surface interactions and analysis
  • Electron and X-Ray Spectroscopy Techniques
  • Advanced Materials Characterization Techniques
  • Heavy metals in environment
  • Metal and Thin Film Mechanics
  • Analytical chemistry methods development
  • Wind Turbine Control Systems
  • Supercapacitor Materials and Fabrication
  • HVDC Systems and Fault Protection
  • X-ray Spectroscopy and Fluorescence Analysis
  • Adsorption and biosorption for pollutant removal
  • Layered Double Hydroxides Synthesis and Applications
  • Arsenic contamination and mitigation
  • Integrated Circuits and Semiconductor Failure Analysis
  • Fusion materials and technologies
  • Nuclear Physics and Applications
  • Advanced Photocatalysis Techniques
  • Coal and Its By-products
  • Nanomaterials for catalytic reactions
  • Geophysical Methods and Applications
  • Mercury impact and mitigation studies
  • Advanced Chemical Physics Studies
  • Surface and Thin Film Phenomena
  • Soil Moisture and Remote Sensing
  • Semiconductor materials and devices

Shaanxi Provincial Land Engineering Construction Group
2020-2024

Shanghai Institute of Technology
2024

National Institute of Advanced Industrial Science and Technology
2022-2024

University of Tsukuba
2020-2024

China Land Surveying and Planning Institute
2020-2023

Ministry of Natural Resources
2020-2022

Qingdao Agricultural University
2021-2022

Land Consolidation and Rehabilitation Center
2020-2022

Xi'an Jiaotong University
2022

Yangtze University
2022

The paper considers a control solution for integration of large offshore doubly fed induction generator based wind farms with common collection bus, controlled by static compensator, into the main onshore grid, using line-commutated high-voltage direct current connection. paper's focus is mathematically grounded study power system interactions. That produced an appropriate plant model formal design. A design procedure described and validated systems computer-aided design/electromagnetic...

10.1109/tec.2006.889544 article EN IEEE Transactions on Energy Conversion 2007-03-01

The paper considers a solution for integration of large offshore doubly fed induction generator-based wind farms with common collection bus controlled by STATCOM into the main onshore grid using line-commutated high-voltage dc connection. A design procedure is described and system validated PSCAD/EMTDC simulations confirming high performance proposed control strategy in both normal operation conditions faults. Engineering issues related to capacitor sizing reduction rating are considered...

10.1109/tec.2007.914155 article EN IEEE Transactions on Energy Conversion 2008-02-21

Soil-heavy metal pollution in mining areas is one of the problems comprehensive treatment soil environmental pollution. To explore degree soil-heavy and human health risk areas, contents As, Cd, Cu, Cr, Hg, Ni, Pb, Cr(VI) an abandoned gold area were determined. The geoaccumulation index (Igeo), single-factor (SPI), Nemerow (NCPI), potential ecological (PERI), assessment model used to assess Finally, results provide remediation guidance. showed that (1) average Ni exceeded background values...

10.3390/toxics10070385 article EN cc-by Toxics 2022-07-11

This paper considers the formal design for grid frequency control in an offshore wind farm connected with line-commutated converter high voltage dc (HVDC) link. The paradigm is based on using to regulate HVDC rectifier firing angle or dc-link current and hence power flow system. dynamic behaviors of system are verified by comparing response from derived transfer functions PSCAD simulations; controllers designed. performance has been validated simulations normal operation fault regimes. work...

10.1109/tpel.2008.921193 article EN IEEE Transactions on Power Electronics 2008-05-01

The ecological environment in mining area is fragile, and the carbon (C), nitrogen (N), phosphorus (P) content of dominant plants closely related to plant nutrient limitation, community composition ecosystem function. Clarifying response soil properties corresponding trade-off mechanism are essential for rebuilding resilience self-sustaining ability areas. In order explore element traits physico-chemical under stress arsenic (As) pollution, an abandoned metal threatened by heavy As pollution...

10.1016/j.ecolind.2023.109931 article EN cc-by-nc-nd Ecological Indicators 2023-01-22

Diabetes has become a universal epidemic in recent years. Herein, the monitoring of glucose blood is importance clinical applications. In this work, PtNi alloy nanoparticles homogeneously dispersed on graphene (PtNi alloy-graphene) was synthesized as highly effective electrode material for detection. Based modified alloy-graphene/glass carbon alloy-graphene/GC) electrode, it found that alloy-graphene/GC exhibited excellent electrocatalytic performance oxidation. Furthermore, results from...

10.1038/s41598-020-73567-2 article EN cc-by Scientific Reports 2020-10-08

To realize the co-encapsulation of multiple nutraceuticals with different solubilities, Pickering emulsions stabilized by freshly-prepared liposome suspension emulsion (Fre-Lip-Sus-E) and hydrated lyophilized (Hyd-Lyo-Lip-E) were prepared, in comparison phospholipid (Pho-E). The particle size, zeta-potential, emulsification activity (EAI), stability (ESI), morphology, environmental rheological properties three compared. In addition, vitro digestive bioaccessibility loaded vitamin B2, E...

10.1039/d1fo03617c article EN Food & Function 2022-01-01

Ultra-high performance liquid chromatography-quadrupole-time of flight tandem mass spectrometry (UHPLC-Q-TOF-MS/MS) was used to study the diversity tea polysaccharides and dynamic changes in physicochemical indexes samples. FT-IR spectra free radical scavenging ability polysaccharides, during pile-fermentation post-fermented tea, were analyzed. The results showed that 23 saccharide co mponents identified: these belonged 11 monosaccharides, 5 oligosaccharides, 6 derivatives monosaccharides...

10.3390/foods11213376 article EN cc-by Foods 2022-10-26

Ground-penetrating radar (GPR) is an efficient and nondestructive geophysical method with great potential for detecting soil water content at the farmland scale. However, a key challenge in detection obtaining rapidly real-time. In recent years, deep learning methods have become more widespread earth sciences, making it possible to use them inversion from GPR data. this paper, we propose neural network framework GPRSW based on of end-to-end that directly inverts volumetric (VSWC) through...

10.3390/rs15071906 article EN cc-by Remote Sensing 2023-04-02

Ground-penetrating radar (GPR) is an important tool for measuring soil water content (SWC) at the field scale. The amplitude analysis of early time signal (ETS) GPR may provide a rapid way to estimate SWC. By assuming homogeneous medium, various studies have been conducted on relationship between ETS and topsoil layer’s electromagnetic parameters (dielectric permittivity conductivity) through numerical simulations, laboratory experiments, experiments. Soil typical inhomogeneous cultivation...

10.3390/rs15123026 article EN cc-by Remote Sensing 2023-06-09

10.1016/j.colsurfa.2024.134913 article EN Colloids and Surfaces A Physicochemical and Engineering Aspects 2024-07-24

The manipulation of oxygen vacancies is regarded as a viable approach to enhance the electrochemical properties electrode materials.

10.1039/d4dt02351j article EN Dalton Transactions 2024-01-01

A novel, accurate, and precise method is described for simultaneous determination of trace lead (Pb), tin (Sn) cadmium (Cd) in biological samples by chemical vapor generation (CVG) coupled with non-dispersive atomic fluorescence spectrometry. dual gas–liquid separator system Pb, Sn Cd assembled spectrometry was proposed. The consists two peristaltic pumps as the liquid driver, separators an detector. In first system, main some SnH4 were carried out reductant solution I, second PbH4 II....

10.1039/c0ja00222d article EN Journal of Analytical Atomic Spectrometry 2011-01-01

Activated carbon can be applied to the treatment of wastewater loading with different types pollutants. In this paper, a kind activated in granular form (GAC) was utilized eliminate antibiotics from an aqueous solution, which Tetracycline (TC), Thiamphenicol (THI), and Sulfamethoxazole (SMZ) were selected as testing The specific surface area, total pore volume, micropore volume GAC 1059.011 m2/g, 0.625 cm3/g, 0.488 respectively. sorption capacity towards TC, THI, SMZ evaluated based on...

10.3390/molecules27227980 article EN cc-by Molecules 2022-11-17

Shahe Reservoir of Northern Canal Basin was selected as the study area. Nineteen surface (0~20 cm) sediment samples and three core were collected to analyze spatial distribution characteristics As, Cd, Cu, Mn, Pb Zn in sediments. The geo-accumulation index, potential ecological risk index assessment code used evaluate heavy metal pollution, well its analyzed according speciation metals. Results showed that average enrichment factors metals compared background value soil Beijing ranked at...

10.1038/s41598-022-20540-w article EN cc-by Scientific Reports 2022-09-28
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