Qiuji Chen

ORCID: 0000-0003-1156-3506
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About
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Research Areas
  • Environmental Quality and Pollution
  • Remote Sensing and Land Use
  • Land Use and Ecosystem Services
  • Advanced Computational Techniques and Applications
  • Environmental Changes in China
  • Remote Sensing and LiDAR Applications
  • Environmental and Agricultural Sciences
  • Geomechanics and Mining Engineering
  • Advanced biosensing and bioanalysis techniques
  • Forest Ecology and Biodiversity Studies
  • Advanced Decision-Making Techniques
  • Geoscience and Mining Technology
  • Impact of Light on Environment and Health
  • Remote-Sensing Image Classification
  • Advanced Biosensing Techniques and Applications
  • Remote Sensing in Agriculture
  • Advanced Sensor and Energy Harvesting Materials
  • Sustainable Agricultural Systems Analysis
  • Sustainability and Ecological Systems Analysis
  • Web Applications and Data Management
  • Climate change impacts on agriculture
  • Grey System Theory Applications
  • Extenics and Innovation Methods
  • Advanced Image Fusion Techniques
  • Soil and Land Suitability Analysis

Xi'an University of Science and Technology
2009-2024

University of Science and Technology Beijing
2023-2024

Qingdao University of Science and Technology
2022

China University of Geosciences (Beijing)
2008

Henan Polytechnic University
2006-2008

China University of Mining and Technology
2007

Henan University
2006

Hebei University of Technology
2003

Abstract Hydrogels are currently in the limelight for applications soft electronics but they suffer from tendency to lose water or freeze when exposed dry environments low temperatures. Molecular crowding is a prevalent occurrence living cells, which molecular agents modify hydrogen bonding structure, causing significant reduction activity. Here, wide‐humidity range applicable, anti‐freezing, and robust hydrogel developed through incorporation of natural amino acid proline (Pro) conductive...

10.1002/smll.202400161 article EN Small 2024-03-03

Individual Tree Detection and Segmentation (ITDS) is a key step in accurately extracting forest structural parameters from LiDAR (Light Ranging) data. However, most ITDS algorithms face challenges with over-segmentation, under-segmentation, the omission of small trees high-density forests. In this study, we developed bottom–up framework for based on seed points. The proposed method density-based spatial clustering applications noise (DBSCAN) to initially detect trunks filter clusters by set...

10.3390/f15071083 article EN Forests 2024-06-22

Mapping socio-economic indicators with a raster format is still great challenge. The nighttime light (NTL) datasets have been widely utilized to estimate the parameters. However, precision of published was too coarse meet related issues such as flood losses assessment, urban planning, and epidemiological studies. present study calibrated gross domestic product (GDP), population (POP), electric consumption (EC), build-up area (B-A) at 100 m resolution for 45 cities China in 2018 using...

10.1109/access.2021.3059865 article EN cc-by IEEE Access 2021-01-01

Wearable devices made of degradable fibers are rising stars in smart healthcare by virtue their light weight, flexibility, and weavability. Silk protein is one promising platform for ideal fiber-type electronic due to its inherent biocompatibility biodegradability. However, it remains a challenge conductive silk-based fiber electronics achieve high stretchability skin-like softness. Here, hygroscopic calcium-modified MXene/silk nanocomposite (Ca@MSNFs) fabricated decorating the wet-spun with...

10.1021/acsmaterialslett.3c00397 article EN ACS Materials Letters 2023-07-07

The Wei River Basin (WRB) is the main winter wheat-producing area in Northwest China and plays a pivotal role national food security economic development. Drought agro-meteorological disaster affecting wheat yield this region, accurate assessment of drought impacts on crop growth an important part maintaining security. However, commonly used methods, such as correlation analysis model simulation, have some limitations. In study, based standardized precipitation evapotranspiration index...

10.1016/j.agwat.2022.108019 article EN cc-by-nc-nd Agricultural Water Management 2022-11-08

Abstract Urbanization causes the expansion of urban land and changes to environments, both which have significant impacts on carbon uptake vegetation. Although previous studies proposed that impact in environmental conditions vegetation by are generally indirect, processes this still unclear. In study, we quantified indirect effects urbanization for unchanged areas. We extracted areas based multisource remote sensing data from Google Earth Engine cloud computing platform. The influence...

10.1088/1748-9326/ac06fd article EN cc-by Environmental Research Letters 2021-06-01

Abstract The correct individual tree segmentation of the forest is necessary for extracting additional information trees, such as height, crown width, and other parameters. With development LiDAR technology, research method based on point cloud data has become a focus community. In this work, area located in an underground coal mine Shenmu City, Shaanxi Province, China. Vegetation with without leaves mining are obtained airborne to conduct research. study, we propose hybrid clustering...

10.1515/geo-2020-0266 article EN cc-by-nc-nd Open Geosciences 2021-01-01

Continuous urbanization and industrialization lead to plenty of rural residents migrating cities for a living, which seriously accelerated the population hollowing issues. This generated series social issues, including residential estate idle numerous vigorous laborers from undeveloped areas wealthy towns. Quantitatively determining characteristic is priority task realizing revitalization. However, traditional field investigation methods have obvious deficiencies in describing socio-economic...

10.3390/su14169815 article EN Sustainability 2022-08-09

The mixed grasslands of North America are ecosystems with a high volume dead biomass. This characteristic underlies key ecosystem features such as the rate carbon and nutrient uptake, heat flux exchange between surface atmosphere, wildlife habitat. Senescent vegetation is an important forage resource for grazing animals related to natural fire frequency intensity. Therefore, quantitative estimation photosynthetic (PV), senescent (NPV), bare soil (BS) fraction management. authors propose...

10.1080/07038992.2019.1605586 article EN Canadian Journal of Remote Sensing 2019-03-04

The use of light detection and ranging (LiDAR) for investigating forest parameters has gained attention in recent years. However, the occlusion trees natural forests makes it difficult LiDAR on a single platform to capture complete point clouds trees. In order solve this problem, is crucial combine multi-platform data. Because complexity small difference between geometric characteristics trees, current data fusion remains an ongoing challenge forests. paper, automatic registration framework...

10.1080/01431161.2023.2235636 article EN International Journal of Remote Sensing 2023-07-19

Abstract Dynamic reclamation for subsidence land is a development trend of ecological restoration in the mining area. It emphasizes that treatments should be taken during or before damage to control degradation. Because dynamic complex problem, there still exist many challenges have studied practical application. In this paper, taking area with high underground water level as an example, according requirements use and economic development, key techniques are analyzed based on mine theories....

10.1515/geo-2018-0051 article EN cc-by-nc-nd Open Geosciences 2018-11-10

Abstract Under the background of ecological civilization era, rapidly obtaining coal mining information, timely assessing environmental impacts, and drafting different management protection measures in advance to enhance capacity green mine construction have become urgent technical problems be solved at present. Simulating analyzing subsidence is foundation for a land reclamation plan. The Cellular Automata (CA) model provides new tool simulating evolution subsidence. This paper takes East...

10.1515/geo-2020-0172 article EN cc-by-nc-nd Open Geosciences 2020-01-01

The development of remote sensing technology and geographic information systems provides a new research tool for people to quickly access urban heat environmental analysis the evolution space.Combined with planning data related Xi'an, then LST Xi'an area was successfully retrieved by mono-window algorithm based on 2002 ETM + 2010 TM images.The results indicated that there weak island effect in most districts only small portion region where strong effect.In 2002, temperature between suburbs...

10.2174/1874110x01509010228 article EN The Open Cybernetics & Systemics Journal 2015-04-17

Abstract Desert lakes are important wetland resources in the blown-sand area of western China and play a significant role maintaining regional ecological environment. However, large-scale coal mining recent years has considerably impacted deposition condition several lakes. Rapid accurate extraction lake information based on satellite images is crucial for developing protective measures against desertification. spatial resolution these often leads to mixed pixels near water boundaries,...

10.1007/s40789-023-00597-2 article EN cc-by International Journal of Coal Science & Technology 2023-07-18

Coal mining has brought a plenty of benefit and matter for human kind, greatly improved the development economy society. At same time, however, it also lead to environment damage, which affected regional sustainable development. In this paper, we take Luxi Mine, Shandong Province as an example, based on GIS, study effect due coal with theory ecological footprint. The research result show that inevitably affects footprint area. order minimize deficit, measures shall be taken during period...

10.1117/12.712960 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2006-10-28

Resource mining has lead to a lot of land lacking productivity and regional ecological environment deteriorating. Land reclamation is one type path restore the condition keep sustainable development. The suitability evaluation for can provide base determining reasonable use mode. traditional method cannot meet demand reclamation, so variable weight fuzzy comprehensive adopted in this paper study based on GIS. research showed that studied result classification degree level consistent with...

10.1109/iita.2009.226 article EN 2009-01-01

Resource mining has lead to a lot of land lacking productivity and regional ecological environment deteriorating. In order make scientific rational program the restoration, environmental conditions area shall be evaluate firstly. this study, in research were done with methods fuzzy-OWA (Ordered Weighted Averaging) based on GIS. The showed that there nearly half was serious damaged, 36 percent light only 14 keeping health. studied result reasonable classification degree for condition is...

10.1109/esiat.2009.149 article EN 2009-07-01

10.1007/s12404-008-0065-6 article EN Journal of Coal Science and Engineering (China) 2008-06-01
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