Xiangyang Zheng

ORCID: 0000-0003-0656-4029
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About
Contact & Profiles
Research Areas
  • Marine and coastal ecosystems
  • Oceanographic and Atmospheric Processes
  • Marine and coastal plant biology
  • Ocean Waves and Remote Sensing
  • Advanced Photocatalysis Techniques
  • Oil Spill Detection and Mitigation
  • Coastal and Marine Dynamics
  • Water Quality Monitoring and Analysis
  • Perovskite Materials and Applications
  • Coastal wetland ecosystem dynamics
  • Water Quality Monitoring Technologies
  • Environmental Changes in China
  • Nuclear Physics and Applications
  • Aluminum Alloys Composites Properties
  • Risk and Safety Analysis
  • Advanced Polymer Synthesis and Characterization
  • Copper-based nanomaterials and applications
  • Magnesium Alloys: Properties and Applications
  • Remote Sensing and Land Use
  • Maritime Navigation and Safety
  • Gas Sensing Nanomaterials and Sensors
  • Radiation Detection and Scintillator Technologies
  • Geology and Paleoclimatology Research
  • Hydrogen Storage and Materials
  • Military Defense Systems Analysis

Yantai Institute of Coastal Zone Research
2018-2024

Chinese Academy of Sciences
2018-2024

Jiangnan University
2017-2024

Henan University of Science and Technology
2023-2024

Liaoning University of Technology
2024

University of Chinese Academy of Sciences
2018-2023

Nuclear and Radiation Safety Center
2015-2022

Shandong Marine Resource and Environment Research Institute
2021

Institute of Oceanology
2019-2021

State Key Laboratory of Food Science and Technology
2017

Multi-sensor remote sensing is a critical part of the surveillance coastal ocean for hazard management. The world's largest green macroalgae blooms (green tide) in Yellow Sea since 2007 are caused by Ulva, which disposed as biofoulings into sea water when workers recycle seaweed (Porphyra) farming facilities. We traced development processes cultivation area 2000 and variation macroalgal through multi-sensors (satellite, Unmanned Aerial Vehicle, ground spectroradiometer) this study. found...

10.1016/j.rse.2019.111279 article EN cc-by-nc-nd Remote Sensing of Environment 2019-06-28

Optimized lightweight, compact and high temperature sustaining shielding materials for neutron gamma radiation were developed by genetic algorithms (GA) combined with the Monte Carlo N-Particle (MCNP) code. A series of samples designed according to method. Deep penetration tests MCNP code completed. The results show that have more advantages related effects in comparison PB202 KRAFTON-XP3, especially Cakes multi-layers structures Fe-interlayer-Pb excellent performance. Taking into account...

10.1109/tns.2008.2000800 article EN IEEE Transactions on Nuclear Science 2008-08-01

Abstract The rapid recombination of photogenerated electrons and holes was an enormous hindrance constraining the photocatalytic efficiency photocatalysis, which could be effectively solved by inducing electron spin-polarization. Herein, a series gradient ZnFe 2- x Co O 4 (ZFCO- ) magnetic compounds with spin-polarization properties were synthesized doping cation into 2 , as well diffraction x-rays characterization confirmed successful synthesis samples. In photodegradation experiments,...

10.1088/1361-6463/ad2094 article EN Journal of Physics D Applied Physics 2024-01-19

Monitoring shoreline movements is essential for understanding the impact of anthropogenic activities and climate change on coastal zone dynamics. The use remote sensing allows large-scale spatial temporal studies to better comprehend current trends. This study used Landsat 5 (TM), 8 (OLI), Sentinel-2 (MSI) images, together with Otsu algorithm, marching squares tidal correction extract correct coastline positions east coast Laizhou Bay in China from 1984 2022. results indicate that 89.63%...

10.3390/rs16010185 article EN cc-by Remote Sensing 2024-01-01

Microwave-assisted and ultrasound-assisted extraction assays were used to isolate total flavonoids (TF) from Osmanthus fragrans flowers. The effects of the solid-liquid ratio, ethanol concentration, microwave power, time, ultrasonic power time on yield TF studied. A sequential combination microwave- (SC-MUAE) methods was developed, which subsequently optimized by Box-Behnken design-response surface methodology (BBD-RSM). interaction concentration (40–60%), (5–7 min), (8–12 min) (210–430 W)...

10.3390/molecules22122216 article EN cc-by Molecules 2017-12-13

In order to use in situ sensed reflectance monitor the concentrations of chlorophyll-a (Chl-a) and total suspended particulate (TSP) waters Pearl River Delta, which is featured by highly developed network rivers, channels ponds, 135 sets simultaneously collected water samples were used test performance traditional empirical models (band ratio, three bands) machine learning a back-propagation neural (BPNN). The results laboratory analysis with show that Chl-a ranges from 3 256 µg·L−1 an...

10.3390/w13050650 article EN Water 2021-02-28

A 2D/0D Bi 12 O 17 Cl 2 /AgBr Z-scheme photocatalyst provides a jointed synchronous pathway for simultaneous Cr( vi ) and TC removal.

10.1039/d2en00028h article EN Environmental Science Nano 2022-01-01

Suspended sediments have profound impacts on marine primary productivity and the ecological environment. The Yellow River estuary its vicinity waters, with a high dynamic range of suspended sediment concentration (SSC), important eco-environmental functions for sustainable development in this region. multispectral imager (MI) board China’s first Sustainable Development Goals Science Satellite 1 (SDGSAT-1) features seven high-resolution bands (10 m). This study employs imagery obtained from...

10.3390/w15193522 article EN Water 2023-10-09

Satellite images with different spatial resolutions are widely used in the observations of floating macroalgae booms sea surface. In this study, semi-synchronous satellite (10 m, 16 30 50 100 250 m and 500 m) acquired over Yellow Sea, to quantitatively assess effects resolution on observation blooms Ulva prolifera. Results indicate that covering area macroalgae-mixing pixels (MM-CA) detected from high is smaller than low images; however, affected by (AA) larger ones. The omission rates MM-CA...

10.3390/w13131761 article EN Water 2021-06-25

In the past decade, floating macroalgae blooms have been increasing on a global scale. Sub-pixel coverage of in remote-sensing image is crucial parameter for estimation biomass. this study, situ spectra green (Ulva prolifera), brown (Sargassum horneri), and sea water were collected, they used to simulate macroalgae–seawater mixtures linear mixing way. Three algae indices, normalized difference vegetation index (NDVI), (DVI), virtual-baseline reflectance height (VB-FAH) derived from spectra,...

10.1080/07055900.2018.1509834 article EN ATMOSPHERE-OCEAN 2018-08-08

In this paper, two hydrodynamic models were developed using Delft3D and then applied to the 2011 Penglai 19-3 accident in Chinese Bohai Sea. One model includes constant temperature salinity, while other utilizes variable salinity. The both simulate currents fields Sea utilize wind data from National Meteorological Service of Germany (DWD) calculate drift spilled oil. simulation results are consistent with previous studies. We subsequently predict surface oil trajectories spill based on...

10.1080/1064119x.2016.1261971 article EN Marine Georesources and Geotechnology 2016-11-28

Large scale green macroalgae blooms (MABs) caused by Ulva prolifera have occurred regularly in the Yellow Sea since 2007. In MAB dissipation phase, landing or sinking and decomposition of U. would alter physical-chemical environment seawater cause ecological, environmental, economic problems. To understand features, we used multiple sensors to analyze spatiotemporal variation phase southern Sea. The results show daily rate (DR) was inconsistent from year year. Based on DR variation, a simple...

10.3390/rs13193811 article EN cc-by Remote Sensing 2021-09-23

Abstract Total suspended solids (TSS) can be a useful indicator of environmental change in nearshore coastal environments. Understanding the mechanisms TSS variations response to drivers is broad interest for ecology and geomorphology. The Yellow River Delta (YRD) China fragile region that has been affected by human activities climate change. Here, we investigated along YRD shoreline over two decades with time‐series satellite data (2002–2020). We observed concentration decreased...

10.1002/esp.5683 article EN Earth Surface Processes and Landforms 2023-08-14

Abstract In this study, a novel thermo‐sensitive poly( N ‐acryloylglycinates) was prepared in order to get potential drug release carrier. The corresponding monomers and the polymers were characterized with Fourier‐transform infrared (FTIR) 1 H NMR. thermo‐sensitivity of evaluated by measuring their lower critical solution temperatures (LCST) water, inorganic salt solution, different pH solutions. results indicated that ‐acryloylglycine methyl ester) (NAGME) ethyl (NAGEE) exhibit reversible...

10.1002/pat.1471 article EN Polymers for Advanced Technologies 2009-06-25

Abstract With the development of coastal suspended aquaculture industry, facilities have extended into open sea to depths up 30 m. This practice will likely affect natural ocean circulation in such areas. For a case study high-density region Yellow Sea, an aquaculture-induced boundary (ABC) is identified and its effects on background frontal cross-shore nutrient supply are examined. The ABC composed southward along-boundary current counterclockwise cross-boundary cell. (∼5 cm s −1 ) along...

10.1088/2515-7620/ab22cd article EN cc-by Environmental Research Communications 2019-05-20

Abstract Using potassium diperiodatonickelate (Ni (IV)) as an efficient initiator, the graft copolymerization of methyl acrylate (MA) onto organophilic montmorillonite (OMMT) was successfully performed in alkaline medium. Three grafting parameters were systematically evaluated functions temperature, initiator concentration, reaction time, pH value, and ratio MA to OMMT substrate. The structure titled copolymers (OMMT‐ g ‐PMA) confirmed by Fourier transform infrared spectroscopy (FTIR), X‐ray...

10.1002/pat.1076 article EN Polymers for Advanced Technologies 2008-04-02
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