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| 1 | Air quality monitoring using mobile microscopy and machine learning显示文摘Rapid,accurate and high-throughput sizing and quantification of particulate matter(PM)in air is crucial for monitoring and improving air quality.In fact,particles in air with a diameter of≤2.5μm have been classified as carcinogenic by the World Health Organization.Here we present a field-portable cost-effective platform for high-throughput quantification of particulate matter using computational lens-free microscopy and machine-learning.This platform,termed c-Air,is also integrated with a smartphone application for device control and display of results.This mobile device rapidly screens 6.5 L of air in 30 s and generates microscopic images of the aerosols in air.It provides statistics of the particle size and density distribution with a sizing accuracy of~93%.We tested this mobile platform by measuring the air quality at different indoor and outdoor environments and measurement times,and compared our results to those of an Environmental Protection Agency–approved device based on beta-attenuation monitoring,which showed strong correlation to c-Air measurements.Furthermore,we used c-Air to map the air quality around Los Angeles International Airport(LAX)over 24 h to confirm that the impact of LAX on increased PM concentration was present even at 47 km away from the airport,especially along the direction of landing flights.With its machinelearning-based computational microscopy interface,c-Air can be adaptively tailored to detect specific particles in air,for example,various types of pollen and mold and provide a cost-effective mobile solution for highly accurate and distributed sensing of air quality. | Yi-Chen Wu Ashutosh Shiledar Yi-Cheng Li Jeffrey Wong Steve Feng Xuan Chen Christine Chen Kevin Jin Saba Janamian Zhe Yang Zachary Scott Ballard Zoltán Göröcs Alborz Feizi Aydogan Ozcan | 2017 | Light(Science & Applications)2017，6，1： | 5 |
| 2 | Nontargeted identification of peptides and disinfection byproducts in water显示文摘A broad range of organic compounds are known to exist in drinking water sources and serve as precursors of disinfection byproducts(DBPs).Epidemiological findings of an association of increased risk of bladder cancer with the consumption of chlorinated water has resulted in health concerns about DBPs.Peptides are thought to be an important category of DBP precursors in water.However,little is known about the actual presence of peptides and their DBPs in drinking water because of their high sample complexity and low concentrations.To address this challenge and identify peptides and non-chlorinated/chlorinated peptide DBPs from large sets of organic compounds in water,we developed a novel high throughput analysis strategy,which integrated multiple solid phase extraction(SPE),high performance liquid chromatography(HPLC)separation,and non-target identification using precursor ion exclusion(PIE)high resolution mass spectrometry(MS).After MS analysis,structures of candidate compounds,particularly peptides,were obtained by searching against the Human Metabolome Database(HMDB).Using this strategy,we successfully detected 625 peptides(out of 17,205 putative compounds)and 617 peptides(out of 13,297)respectively in source and finished water samples.The source and finished water samples had 501 peptides and amino acids in common.The remaining 116 peptides and amino acids were unique to the finished water.From a subset of 30 putative compounds for which standards were available,25 were confirmed using HPLC-MS analysis.By analyzing the peptides identified in source and finished water,we successfully confirmed three disinfection reaction pathways that convert peptides into toxic DBPs. | Yanan Tang Ying Xu Feng Li Lindsay Jmaiff Steve E.Hrudey Xing-Fang Li | 2016 | Journal of Environmental Sciences2016，28，4： | 3 |
| 3 | Effects of blast induced vi- brations on the fresh concrete lining of a shaft 显示文摘 | Changsuo Zhang Feng Hu Steve Zou | 2005 | Tunnelling andUnderground Space Technology2005，，20： | 1 |
| 4 | Electrochemical incineration of 4-chlorophenol and the identification of products and intermediates mass spectrometry显示文摘 | Steve K Johnson Linda L Houk Jianren Feng | 1999 | Environ Sci & Technol1999，，33： | 1 |
| 5 | Effects of blast in- duced vibrations on the fresh concrete lining of a shaft显示文摘 | HANG Changsuo HU Feng ZOU Steve | 2005 | Tunneling and Underground Space Technology2005，20，4： | 1 |
| 6 | Earliest Triassic microbialites in the South China block and other areas: controls on their growth and distribution显示文摘 | Steve Kershaw Yue Li Sylvie Crasquin-Soleau Qinglai Feng Xinan Mu Pierre-Yves Collin Alan Reynolds Li Guo | 2007 | Facies2007，，3： | 1 |
| 7 | Effects of blast induced vibrations on the fresh concrete lining of a shaft显示文摘 | Zhang Changsuo Hu Feng Zou Steve | 2005 | Tunnelling and Underground Space Technology2005，20，4： | 1 |
| 8 | NATIONAL MOSAIC AND MULTI-SENSOR QPE (NMQ) SYSTEM: Description, Results, and Future Plans显示文摘 | Zhang Jian Howard Kenneth Langston Carrie Vasiloff Steve Kaney Brian Arthur Ami Van Cooten Suzanne Kelleher Kevin Kitzmiller David Ding Feng Seo Dong-Jun Wells Ernie Dempsey Chuck | 2011 | Bulletin of the American Meteorological Society2011，，10： | 1 |
| 9 | Earliest Triassic microbialites in the South China block and other areas: controls on their growth and distribution显示文摘 | Steve Kershaw Yue Li Sylvie Crasquin-Soleau Qinglai Feng Xinan Mu Pierre-Yves Collin Alan Reynolds Li Guo | 2007 | Facies2007，，3： | 1 |
| 10 | Electrochemical incineration of 4-chlorophenol and the identification of products and intermediates mass spectrometry显示文摘 | Steve K J Linda L H Feng Jianren | 1999 | Environ Sci & Technol1999，，33： | 1 |
| 11 | Subcellular localisation of Cd and Zn in the leaves of a Cd-hyperaccumulating ecotype of Thlaspi caerulescens显示文摘 | Jian Feng Ma Daisei Ueno Fang-Jie Zhao Steve P. McGrath | 2005 | Planta2005，，5： | 1 |
| 12 | Utility of Nongated Multidetector Computed Tomography for Detection of Left Atrial Thrombus in Patients Undergoing Catheter Ablation of Atrial Fibrillation显示文摘 | Matthew W. Martinez Jacobo Kirsch Eric E. Williamson Imran S. Syed DaLi Feng Steve Ommen Douglas L. Packer Peter A. Brady | 2009 | JACC: Cardiovascular Imaging2009，，1： | 1 |
| 13 | MORC Family ATPases Required for Heterochromatin Condensation and Gene Silencing显示文摘 | Guillaume Moissiard Shawn J. Cokus Joshua Cary Suhua Feng Allison C. Billi Hume Stroud Dylan Husmann Ye Zhan Bryan R. Lajoie Rachel Patton McCord Christopher J. Hale Wei Feng Scott D. Michaels Alison R. Frand Matteo Pellegrini Job Dekker John K. Kim Steve | 2012 | Science . 2012 (6087)2012，，6087： | 1 |
| 14 | Earliest Triassic microbialites in the South China block and other areas: controls on their growth and distribution显示文摘 | Steve Kershaw Yue Li Sylvie Crasquin-Soleau Qinglai Feng Xinan Mu Pierre-Yves Collin Alan Reynolds Li Guo | 2007 | Facies2007，，3： | 1 |
| 15 | Effects of blast induced vibrations on the fresh concrete lining of a shaft显示文摘 | Zhang Chang-suo Hu Feng Zou Steve | 2005 | Tunnelling and Underground Space Technology2005，20，2： | 1 |
| 16 | NATIONAL MOSAIC AND MULTI-SENSOR QPE (NMQ) SYSTEM: Description, Results, and Future Plans显示文摘 | Zhang Jian Howard Kenneth Langston Carrie Vasiloff Steve Kaney Brian Arthur Ami Van Cooten Suzanne Kelleher Kevin Kitzmiller David Ding Feng Seo Dong-Jun Wells Ernie Dempsey Chuck | 2011 | Bulletin of the American Meteorological Society2011，，10： | 1 |
| 17 | Subcellular localisation of Cd and Zn in the leaves of a Cd-hyperaccumulating ecotype of Thlaspi caerulescens显示文摘 | Jian Feng Ma Daisei Ueno Fang-Jie Zhao Steve P. McGrath | 2005 | Planta2005，，5： | 1 |
| 18 | Hand, Foot, and Mouth Disease in China: Patterns of Spread and Transmissibility显示文摘 | Yu Wang Zijian Feng Yang Yang Steve Self Yongjun Gao Ira M. Longini Jon Wakefield Jing Zhang Liping Wang Xi Chen Lena Yao Jeffrey D. Stanaway Zijun Wang Weizhong Yang | 2011 | Epidemiology2011，，6： | 1 |
| 19 | Liquid pressure sensing system based on distributed polarization crosstalk analysis in polarization maintaining fiber显示文摘A novel quasi-distributed liquid pressure sensing system based on distributed polarization crosstalk analysis(DPXA) in polarization maintaining fiber(PMF) is proposed and demonstrated. We design a special structure of liquid pressure sensing units and invent a corresponding nonlinear calibration method. Five sensing units deployed on a sensing tape can effectively transform the liquid pressure into the transverse-force applied on the sensing PMF, and the induced polarization crosstalk can be measured and located by the DPXA system, so as to further establish the relationship between liquid pressure and crosstalk through the nonlinear calibration method. The liquid pressure sensing system has good sensitivity and high repeatability, and a maximal measurement relative error of 8.96% is measured for the five sensing units, which can be much improved by optimizing the packaging of sensing units. We believe our sensing system will find great applications in the field of engineering liquid pressure sensing. | HE Zongjiang ZHANG Zeheng FENG Ting LI Qing YAO X Steve | 2022 | Optoelectronics Letters2022，18，11： | 0 |
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