A5106745461- Magnetic confinement fusion research
- Coastal and Marine Management
- Environmental Changes in China
- Land Use and Ecosystem Services
- Plasma Diagnostics and Applications
- Superconducting Materials and Applications
- Environmental Quality and Pollution
- Nuclear reactor physics and engineering
- Fusion materials and technologies
- Coastal wetland ecosystem dynamics
- Laser-induced spectroscopy and plasma
- Remote Sensing and Land Use
- Maritime Ports and Logistics
- Coral and Marine Ecosystems Studies
- Water Quality and Pollution Assessment
- Laser-Plasma Interactions and Diagnostics
- Water Quality Monitoring Technologies
- Water Resources and Sustainability
- Geochemistry and Geologic Mapping
- Remote Sensing in Agriculture
- Employee Welfare and Language Studies
- Security in Wireless Sensor Networks
- Recommender Systems and Techniques
- Atomic and Molecular Physics
- Diamond and Carbon-based Materials Research
China National Environmental Monitoring Center
2006-2025
National Marine Environmental Monitoring Center
2006-2025
Beijing University of Technology
2019
Shanghai Urban Construction Design and Research Institute (Group)
2015
Southwestern Institute of Physics
1990-2013
Ocean University of China
2013
Chinese Academy of Geological Sciences
2010
China Geological Survey
2008
The acceleration of urbanization and development marine resources has led to the imbalance land structure, which threatens sustainable human living environment. Exploring spatial distribution patterns land-sea its spatio-temporal evolution characteristics is an important initiative resolve conflicts optimise structure use. Taking Liaoning Coastal Economic Belt as example, this paper constructs a system measure value Production-Living-Ecological Functions (PLEF) coastal zone realizes...
The goal of “double carbon” puts forward higher requirements for the control transport carbon emissions, and exploration emission modelling driven by big data is an important attempt to reduce accurately. Based on land Vehicle Miles Traveled (VMT) sea Automatic Identification System (AIS) data, this study establishes a refined, high-resolution measurement model that incorporates use motor vehicles ships from bottom-up approach analyzes spatial distribution characteristics emissions in...
A 1 m normal incidence vacuum ultraviolet (VUV) spectrometer has been developed for spatial distribution measurement of edge impurity line emission in the wavelength range 300-3200 on HL-2A tokamak. vertical profile is measured with a space-resolved slit placed between an entrance and grating spectrometer. Two concave 1200 grooves/mm gratings blazed at 800 1500 are set rotatable holder spectrometer, which gives dispersion 0.12 mm/A. back-illuminated charge-coupled device used as detector...
The United Nations has proposed Sustainable Development Goal 15 (SDG15), which emphasizes the importance of sustainable land development. This study aims to use remote sensing data build spectral index feature dataset based on Google Earth Engine platform, dig deep features ground objects, and random forest algorithm extract type distribution in Bohai Rim region from 2000 2020. Meanwhile, combined with transfer map landscape pattern index, spatio-temporal was quantitatively analyzed....
Mapping coastal wetlands' spatial distribution and spatiotemporal dynamics is crucial for ecological conservation restoration efforts. However, the high hydrological steep environmental gradients pose challenges precise mapping. This study developed a new method mapping wetlands using time-series remote sensing images deep learning model. Precise change analysis were conducted in Liaohe Estuary Reserve 2017 2022. The results demonstrated superiority of Temporal Optimize Features (TOFs)...
Coastal wetlands are important areas with valuable natural resources and diverse biodiversity. Due to the influence of both factors human activities, landscape coastal undergoes significant changes. It is crucial systematically monitor analyze dynamic changes in wetland cover over a long-term time series. In this paper, series remote sensing classification process was proposed, which integrated feature selection sample migration. Utilizing Google Earth Engine (GEE) Landsat TM/ETM/OLI image...
Coastal wetlands are vital ecosystems at the land–sea interface. They intercept land-based pollutants, regulate microclimates, and mediate carbon cycles. play a significant role in enhancing sequestration capacity maintaining ecological structure functioning. This study proposes an improved method for estimating blue storage coastal salt marsh wetlands, considering soil thickness, by utilizing enhanced Soil Land Inference Model (SoLIM) to estimate thickness with restricted number of sample...
Through variance decomposition, we investigated the impact of rate development and utilization intensity coastal areas economic industrial structure spatial location on environmental quality seawater. The water Liaodong Bay waters was evaluated using comprehensive evaluation index, Nemerow principal component analysis. Dalian Huludao were found to have significantly better than Panjin, Yingkou, Jinzhou near Liaohe Estuary. Marine functional seawater index spatially correlated, sea area had a...
The contradiction between the development of marine resources and ecological protection in Zhejiang is prominent, which restricts high-quality continuous supply products. As a result, efficient maintenance security pattern inshore waters relies on scientific division function zones management zoning areas. This paper constructs technical framework for from aspects ecosystem health, diversity economic social balance using GIS-based overlay analysis three-dimensional matrix discriminant model...
The traditional collaborative filtering algorithm only uses the item-user scoring matrix, but does not consider semantics of item. recommendation effect is often ideal. connotation knowledge movie and interest preference user are added to graph, wherein represented by relationship between entity its characteristic entity, user's use like entity. Said. After adding intension preferences in complex diverse entities form a triple. graph used represent learning method, embedded low-dimensional...
Oceans and their resources are experiencing immense pressure because of human exploitation. The intensive use sea areas has become an important method in solving the contradiction between ocean supply demand, thereby ensuring sustainable marine economy development, tapping potential sea-area utilization, reasonably allocating utilization structures, increasing economic benefits. This paper explores definition connotation constructs evaluation index system based on input intensity, structure,...
A 1 m vacuum ultraviolet (VUV) spectrometer with temporal and spatial resolution was developed for impurity study of HL-2A tokamak. The instrument is equipped two concave gratings blazed at 80 nm 150 nm, respectively, a windowless back-illuminated charge coupled device (CCD) detector 256 × 1024 pixels. total wavelength coverage 30 ∼ 320 spectral 0.015 width entrance slit 10 μm. portion this range observed during plasma discharge 20 nm. minimum integration time the system about 6.7 ms each...
Impurity is one of the key issues on a great impact to quality tokamak plasma. HL-2A first divertor in China. In this paper experimental results are presented impurity through line emission measurement campaign 2003 under limiter and configurations. The low-Z impurities such as carbon oxygen most important components plasma, but their content not so high affect discharge quality. high-Z copper ferrum essential. intensity clearly decreased during configuration formed.
The divertor configuration was successfully formed and the siliconization as a wall conditioning first achieved on HL-2A tokamak experimentally in 2004. is reconstructed by use of CFC code. Impurity an important issue investigated experiments with conditioning. Impurities dramatically decrease after both silicon coated surface vacuum vessel.
Due to the complexity and diversity of issue sustainable island development, no widely accepted applicable evaluation system model regarding currently exists. In this paper, we discuss establish development indicator approach from perspective resources, environment, status, social intelligence development. We reference theory method concerning land region, combine character analyze evaluate extent orient identify key limited factors capability. This research adopts entropy nonstructural...