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您的检索式：作者名="Ballard CS"
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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 | Effect of feeding methionine supplements with different rumen escape values on performance of high producing dairy cows in early lactation显示文摘 | Uchida K Mandebvu P Ballard CS | 2003 | Animal Feed Science and Technology2003，107，： | 1 |
| 3 | Can symptomatology help in the diagnosis of endometriosis? Findings from a national case- control study-Part 1 显示文摘 | Ballard KD Seaman HE de Vries CS | 2008 | BJOG2008，115，11： | 1 |
| 4 | Can symptoma- tology help in the diagnosis of endometriosis? Findings from a national case-control study-part 1 显示文摘 | Ballard KD Seaman HE de Vries CS | 2008 | BJOG2008，115，11： | 1 |
| 5 | Alzheimer's dlsease显示文摘 | BALLARD C GAUTHIER CS CORBETT A | 2011 | Lancet2011，377，9770： | 1 |
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