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CAS IR Grid
机构
长春光学精密机械与物... [2]
深海科学与工程研究所 [2]
西北高原生物研究所 [1]
烟台海岸带研究所 [1]
古脊椎动物与古人类研... [1]
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OAI收割 [7]
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期刊论文 [5]
会议论文 [2]
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2022 [2]
2019 [2]
2011 [1]
2009 [1]
2007 [1]
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In Situ Raman Spectroscopy and DFT Studies of the Phase Transition from Zircon to Reidite at High P-T Conditions
期刊论文
OAI收割
MINERALS, 2022, 卷号: 12, 期号: 12, 页码: 11
作者:
Gao, Yue
;
Zheng, Zhi
;
Zhao, Xia
;
Liu, Yuegao
;
Chen, Jiangzhi
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2023/01/30
zircon
reidite
phase transition
high P-T experiment
diamond anvil cell
in situ Raman spectroscopy
density functional theory
Experimental melt inclusion homogenization in a hydrothermal diamond-anvil cell: Comparison with homogenization at one atmosphere
期刊论文
OAI收割
AMERICAN MINERALOGIST, 2022, 卷号: 107, 期号: 1, 页码: 65-73
作者:
Li, Shenghu
;
Li, Jiankang
;
Chou, I-Ming
  |  
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2022/05/26
Melt inclusions
hydrothermal diamond-anvil cell
Linkam heating stage
homogenization experiment
H2O content
Applications of Fluid
Mineral
Melt Inclusions
Synthesis of novel nanosized fluorinated carbon fiber with high NIR absorption and its application in cancer chemo-photothermal therapy
期刊论文
OAI收割
MATERIALS LETTERS, 2019, 卷号: 244
作者:
Zhang, Lei
;
Wang, Mengzhen
;
Kong, Fei
;
Li, Shuohan
;
Dai, Gangyan
  |  
收藏
  |  
浏览/下载:61/0
  |  
提交时间:2019/11/26
Fluorinated carbon fiber
Photothermal performance
Carbon materials
Cell experiment
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:144/0
  |  
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.
Information extraction from laser speckle patterns using wavelet entropy techniques (EI CONFERENCE)
会议论文
OAI收割
MIPPR 2011: Multispectral Image Acquisition, Processing, and Analysis, November 4, 2011 - November 6, 2011, Guilin, China
作者:
Li X.-Z.
;
Wang X.-J.
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2013/03/25
A novel speckle patterns processing method is presented using multi-scale wavelet techniques. Laser speckle patterns generated from the sample contained abundant information. In this paper
we propose a method using wavelet entropy techniques to analyze the speckle patterns and exact the information on the sample surface. In our case
we used this approach to test the solar silicon cell surface profiles based on the sym8 orthogonal wavelet family. According different wavelet entropy values
the micro-structure of different solar silicon cell surfaces were comparative analyzed. Furthermore
we studied the AFM and reflective spectra of the wafer. Results show that the wavelet entropy speckle processing method is effective and accurate. And the experiment proved that this method is a useful tool to investigate the surface profile quality. 2011 SPIE.
Experimental evidence for eukaryotic fossil preservation: Onion skin cells in silica solution
期刊论文
OAI收割
PRECAMBRIAN RESEARCH, 2009, 卷号: 170, 期号: 3-4, 页码: 223-230
作者:
Chen, Xiaozheng
;
Wang, Wei
;
Shang, Qinghua
;
Lou, Yue
;
Liu, Xinchun
  |  
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2017/07/25
Eukaryotic Cell
Silicification
Simulated Experiment
Nuclei
Novel fast measurement method of twist angle and optical retardation of liquid crystal display (EI CONFERENCE)
会议论文
OAI收割
Asia Display 2007, AD'07, March 12, 2007 - March 16, 2007, Shanghai, China
Huang X.
;
Lu Y.-T.
;
Kong X.-J.
;
Jing H.
;
Fu G.-Z.
;
Jin H.
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2013/03/25
A novel method is proposed to measure twist angle and optical retardation of liquid crystal display in this paper. The new method which is one of single-wavelength methods has three characteristics
introducing a method of measuring the total intensity ratio of the transmitted light to eliminate the influence of absorption by the polarizer
using circularly and homogeneously aligned LC cell (CH-LC) as a unique polarization-converting device
analyzer
using variable sector diaphragm and photodetector to detect the total intensity of transmitted light whose original polarization direction is continuously changed from 0 to arbitrary angle
CH-LC
liquid crystal display and so on. The twist angle () and optical retardation (nd) can be derived by using Jones matrix analysis and a curve fitting where and nd are fitting parameters. Experiment proved the results are accurate
the process of operation is fast
the devices are economical.