中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
遥感与数字地球研究所 [2]
烟台海岸带研究所 [2]
计算技术研究所 [1]
合肥物质科学研究院 [1]
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OAI收割 [6]
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期刊论文 [4]
会议论文 [2]
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2024 [1]
2022 [1]
2019 [1]
2016 [1]
2012 [1]
2006 [1]
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An effective trajectory planning heuristics for UAV-assisted vessel monitoring system
期刊论文
OAI收割
PEER-TO-PEER NETWORKING AND APPLICATIONS, 2024, 页码: 16
作者:
Zhu, Jie
;
Guo, Kaiyu
;
He, Pengfei
;
Huang, Haiping
;
Malekian, Reza
  |  
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2024/12/06
UAV
Heuristic algorithm
Lin-Kernighan-Helsgaun
Pollution detection
Trajectory planning
A Real-Time Water Quality Measurement Instrument for Simultaneously Detecting Turbidity and Particle Size by Using Single-Photon Counting Technique
期刊论文
OAI收割
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2022, 卷号: 71
作者:
Wang, Peng
;
Wang, Xiujuan
;
Yu, Fajun
;
Gui, Huaqiao
;
Kong, Deyi
  |  
收藏
  |  
浏览/下载:40/0
  |  
提交时间:2022/12/23
Particle measurements
Atmospheric measurements
Size measurement
Standards
Pollution measurement
Light scattering
Photonics
Dynamic light scattering
particle size
simultaneous measurement
single-photon detection
turbidity
食用蔬菜能吸收和积累微塑料
期刊论文
OAI收割
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者:
李连祯
;
周倩
;
尹娜
;
涂晨
;
骆永明
  |  
收藏
  |  
浏览/下载:143/0
  |  
提交时间:2020/06/17
微塑料
生菜
聚苯乙烯微球
吸收
积累
健康风险
microplastics
lettuce
polystyrene microbeads
uptake
accumulation
human health risk
Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.
The Dynamic Processes of Sea Ice on the East Coast of Antarctica-A Case Study Based on Spaceborne Synthetic Aperture Radar Data from TerraSAR-X
期刊论文
OAI收割
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016, 卷号: 9, 期号: 3, 页码: 1187-1198
作者:
Liu, Huiying
;
Li, Xiao-Ming
;
Guo, Huadong
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2017/04/24
ERS SAR IMAGES
AUTOMATIC DETECTION
NEURAL-NETWORKS
TRAJECTORIES
SURFACE
BACKSCATTER
SIMULATION
POLLUTION
FILMS
All-solid-state Zn
2+
-selective electrodes for wastewater measurements
会议论文
OAI收割
Hangzhou, China, June 8, 2011 - June 12, 2011
Ju, Lan
;
Yu, Shunyang
;
Zhang, Xiaoyan
;
Yuan, Jin
  |  
收藏
  |  
浏览/下载:79/0
  |  
提交时间:2013/03/11
Dyeing
Electrodes
Heavy Metals
Ions
Pollution Detection
Sewage
Textile Finishing
Textile Processing
Wastewater
Zinc
Spatial analysis and hazard assessment on soil total nitrogen in the middle subtropical zone of China
会议论文
OAI收割
Geoinformatics 2006: Geospatial Information Technology, Wuhan, China, October 28, 2006 - October 29,2006
Lu, Peng
;
Lin, Wenpeng
;
Niu, Zheng
;
Su, Yirong
;
Wu, Jinshui
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2014/12/07
Soil surveys
Data structures
Design
Environmental impact
Nitrogen
Nutrition
Pollution detection
Risk assessment