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| 1 | Application of nanoparticle tracking analysis for characterising the fate of engineered nanoparticles in sediment-water systems显示文摘Novel applications of nanotechnology may lead to the release of engineered nanoparticles(ENPs), which result in concerns over their potential environmental hazardous impact. It is essential for the research workers to be able to quantitatively characterise ENPs in the environment and subsequently to assist the risk assessment of the ENPs. This study hence explored the application of nanoparticle tracking system(NTA) to quantitatively describe the behaviour of the ENPs in natural sediment-water systems. The NTA allows the measurement of both particle number concentration(PNC) and particle size distribution(PSD) of the ENPs. The developed NTA method was applied to a range of gold and magnetite ENPs with a selection of surface properties. The results showed that the positively-charged ENPs interacted more strongly with the sediment than neutral and negatively-charged ENPs. It was also found that the citrate coated Au ENPs had a higher distribution percentage(53%) than 11-mercaptoundecanoic acid coated Au ENPs(20%) and citrate coated magnetite ENPs(21%). The principles of the electrostatic interactions between hard(and soft) acids and bases(HSAB) are used to explain such behaviours; the hard base coating(i.e. citrate ions) will interact more strongly with hard acid(i.e. magnetite) than soft acid(i.e. gold).The results indicate that NTA is a complementary method to existing approaches to characterise the fate and behaviour of ENPs in natural sediment. | Ping Luo Alejandro Roca Karen Tiede Katie Privett Jiachao Jiang John Pinkstone Guibin Ma Jonathan Veinot Alisatair Boxall | 2018 | Journal of Environmental Sciences2018，30，2： | 6 |
| 2 | Reverse-Time Migration from Rugged Topography to Image Ground-Penetrating Radar Data in Complex Environments显示文摘探地雷达偏移成像中,基于高程静校正的基准面偏移方法对起伏地表下的复杂地层成像效果较差。为了优化成像效果,本文提出了一种基于麦克斯韦方程组二阶解耦形式的逆时偏移成像(reversetime migration,RTM)算法,该算法特点在于只需计算电场,且可直接从采集面而非基准面进行波场延拓,进而实现地形逆时偏移。数值模拟比较了高程静校正偏移方法和RTM方法在地表起伏及速度横向变化情况下的成像效果,结果证明RTM方法成像效果更好。为了进一步验证算法效果,利用美国犹他州珊瑚粉沙丘崎岖地形下的实测数据对两种方法进行了对比分析。研究表明,逆时偏移成像方法能够极大地提高复杂环境下探地雷达深度成像精度。 | John H. Bradford Janna Privette David Wilkins Richard Ford | 2018 | Engineering2018，4，5： | 5 |
| 3 | ,Peak Experience,Peak Performance and Flow:A Comparative Analysis of Positive Human Experiences显示文摘 | Privette G | | Journal of Personality and Social Psychology 450，，： | 1 |
| 4 | Unmixing the directional reflectances of AVHRR sub-pixel landcovers 显示文摘 | Asner G P Wessman C A Privette J L | 1997 | IEEE Transactions on Geoscience and Remote Sensing1997，35，4： | 1 |
| 5 | ,1985,Experience as a Component of Personality Theory显示文摘 | Privette G | 1983 | Psychological Reports1983，56，： | 1 |
| 6 | Laparoscopic ap- proaches to resection of suspected gastric gastrointestinal stromal tumors based on tumor location 显示文摘 | PRIVETTE A McCAHILL L BORRAZZO E | 2008 | Surg Endosc2008，22，2： | 1 |
| 7 | Assessment of Biases in MO- DIS Surface Reflectance Due to Immbertian Approximation显示文摘 | Wang Y Lyapustin A Privette J L | 2010 | Remote Sensing of Environment2010，114，： | 1 |
| 8 | Electrochemical sensor- s显示文摘 | Privett B J Shin J H Schoenfisch M H | 2010 | Anal Chem2010，82，12： | 1 |
| 9 | Dynamic mechanical studies of nitrocellulose/nitroglycerine mixtures 显示文摘 | Baker F S Privett G J | 1987 | Polymer1987，28，： | 1 |
| 10 | Laparoscopic approaches to resection of suspected gastric gastrointestinal stromal tumors based on tumor location显示文摘 | Privette A MccahiU L Borrazzo E | 2008 | Surg Endosc2008，22，2： | 1 |
| 11 | Estimating Spectral AI- hedo and Nadir Reflectance through Inversion of Simple BRDF Models with AVHRR/MODIS-Like Data显示文摘 | Privette J L Eck T F Deering D W | 1997 | Journal of Geophysical Research1997，102，： | 1 |
| 12 | Estimating Spectral Al- hedo and Nadir Reflectance Through Inversion of Simple BRDF Models with AVHRR/MODIS-like Data显示文摘 | Privette J L Eck T F Deering D W | 1997 | Journal of Geophysical Research1997，102，29： | 1 |
| 13 | Early spatial and temporal validation of MODIS LAI product in the Southern Africa Kalahari显示文摘 | Privette J L Myneni R B Knyazikhin Y | 2002 | Remote Sensing of Environment2002，，83： | 1 |
| 14 | Experience as a Component of Personality Theory显示文摘 | Privette G | 1985 | Psychological Reports1985，56，： | 1 |
| 15 | Dynamic mechanical studies of nitrocellulose/nitroglycerine mixtures 显示文摘 | Baker F S Privett G J | 1987 | Polymer1987，28，7： | 1 |
| 16 | A framework for the validation of MODIS Land products显示文摘 | Morisette J T Privette J L Justice C O | 2002 | Remote Sensing of Environment2002，83，12： | 1 |
| 17 | Unmixing the directional reflectances of AVHRR sub-pixel landcovers显示文摘 | Asner G P Wessman C A Privette J L | 1997 | IEEE Transactions on Geoscience and Remote Sensing1997，35，4： | 1 |
| 18 | Laparoscopic approaches to resection of suspected gastric gastrointestinal stro- mal tumors based on tumor location 显示文摘 | Privette A McCahill L Borrazzo E | 2008 | Surg Endosc2008，22，2： | 1 |
| 19 | Validation of Global Moderate-resolution LAI Products:A Framework Proposed Within the CEOS Land Product Validation Subgroup显示文摘 | Morisette J T Baret F Privette J L etal | 2006 | IEEE Transactions on Geoscience and Remote Sensing2006，44，7： | 1 |
| 20 | Antibacterial fluorinated silica colloid superhydrophobic surfaces 显示文摘 | PRIVETT B J YOUN J HONG S A | 2011 | Langmuir2011，27，15： | 1 |
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