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| 1 | Sampling error and intraobserver variation in liver biopsy in patients with chronic HCV infection显示文摘 | Arie Regev Mariana Berho Lennox J Jeffers Clara Milikowski Enrique G Molina Nikolaos T Pyrsopoulos Zheng-Zhou Feng K.Rajender Reddy Eugene R Schiff | 2002 | The American Journal of Gastroenterology2002，，10： | 7 |
| 2 | 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 |
| 3 | Terahertz Semiconductor Quantum Well Devices显示文摘For eventually providing terahertz science with compact and convenient devices,terahertz (1~10THz) quantum-well photodetectors and quantum-cascade lasers are investigated.The design and projected detector performance are presented together with experimental results for several test devices,all working at photon energies below and around optical phonons.Background limited infrared performance (BLIP) operations are observed for all samples (three in total),designed for different wavelengths.BLIP temperatures of 17,13,and 12K are achieved for peak detection frequencies of 9.7THz(31μm),5.4THz(56μm),and 3.2THz(93μm),respectively.A set of THz quantum-cascade lasers with identical device parameters except for doping concentration is studied.The δ-doping density for each period varies from 3.2×1010 to 4.8×1010cm-2.We observe that the lasing threshold current density increases monotonically with doping concentration.Moreover,the measurements for devices with different cavity lengths provide evidence that the free carrier absorption causes the waveguide loss also to increase monotonically.Interestingly the observed maximum lasing temperature is best at a doping density of 3.6×1010cm-2. | Liu H C Luo H Ban D Waichter M Song C Y Wasilewski Z R Buchanan M Aers G C SpringThorpe A J Cao J C Feng S L Williams B S Hu Q | 2006 | Journal of Semiconductors2006，27，4： | 2 |
| 4 | Diminished expression of S100A2,a putative tumor suppressor,at early stage of human lung carcinogenesis显示文摘 | Feng G Xu X Youssef EM Lotan R | | 0，，： | 1 |
| 5 | The Design of LDF Data Acquisition System Based on LabVIEW显示文摘 | Liao H Q Qiu Z R Feng G H | 2011 | Procedia Environmental Sciences2011，10，： | 1 |
| 6 | Spatiotemporal evolution of focused single-cycle electromagnetic pulses显示文摘 | Feng S Winful H G Hellwarth R W | 1999 | Phys Rev E1999，59，： | 1 |
| 7 | A robust image hash- ing method based on Zernike moments显示文摘 | Zhao Y Wang S Z Feng G R | 2010 | Journal of Computational Information Systems2010，6，3： | 1 |
| 8 | An efficient ant colony optimization approach to attribute reduction in rough set theory显示文摘 | Ke LJ Feng Z R Ren Z G | 2008 | Pattern Recognition Letters2008，29，9： | 1 |
| 9 | Toxicological approach for assessing the heavy metal binding capacity of soils 显示文摘 | Feng N Dagan R Bitton G | 2007 | Soil&sediment contamination2007，16，5： | 1 |
| 10 | 查看详情显示文摘 | Yan L W Duan X R Ding X T Dong J Q Yang Q W Liu Y Zou X L Liu D Q Xuan W M Chen L Y Rao J Song X M Huang Y Mao W C Wang Q M Li Q Cao Z Li B Cao J Y Lei G J Zhang J H Li X D Chen W Cheng J Cui C H Cui Z Y Deng Z C Dong Y B Feng B B Gao Q D Han X Y Hong W Y | | 0，，： | 1 |
| 11 | Decoding algebraic-geometric codes up to the designed minimum distance 显示文摘 | FENG G L RAO T R N | 1993 | IEEE Transactions on Information Theory1993，39，1： | 1 |
| 12 | Dealloyed Carbon-supported PtAg Nanostructures:Enhanced Electrocatalytic Activity for Oxygen Reduction Reaction 显示文摘 | Feng Y Y Ma J H Zhang G R | 2010 | Electrochem Commun2010，12，9： | 1 |
| 13 | Berberine amelio- rates COX--2 expression in rat small intestinal mucosa partially through PPARgamma pathway during acute endotoxemia显示文摘 | feng A W Gao W Zhou G R | 2012 | Int Immunopharmacol2012，12，1： | 1 |
| 14 | Genome and proteome of long-chain alkane degrading Geobacillus thermodenitrificans NG80-2 isolated from a deep-subsurface oil reservoir 显示文摘 | Feng L Wang W Cheng J Ren Y Zhao G Gao C Tang Y Liu X Han W Peng X Liu R Wang L | 2007 | PNAS2007，104，13： | 1 |
| 15 | Adaptive control of discrete-time chaotic systems: a fuzzy control approach 显示文摘 | FENG G CHEN G R | 2005 | Chaos Solitons and Fractals2005，23，2： | 1 |
| 16 | GoMiner: a resource for biological interpretation of genomic and proteomic data 显示文摘 | Zeeberg B R Feng W Wang G | 2003 | Genome Biol2003，4，4： | 1 |
| 17 | U-Pb zircon,geochemical and Sr-Nd-Hf isotopic constraints on the age and origin of Early Palaeozoic Ⅰ-type granite from the Tengchong-Baoshan Block,western Yunnan province,SW China显示文摘 | Liu S Hu R Z Gao S Feng C X Huang Z L Lai S C Yuan H L Liu X M Coulson I M Feng G Y Wang T and Qi Y Q | | 0，，： | 1 |
| 18 | Reversible visible watermarking with lossless data embedding based on difference value shift显示文摘 | ZHANG X P Wang S Z FENG G R | | 0，，02： | 1 |
| 19 | 查看详情显示文摘 | Gong Z Q Zhi R Hou W Wang X J Feng G L | | 0，，： | 1 |
| 20 | Higher abundance of ammonia oxidizing archaea than ammonia oxidizing bacteria and their communities in Tibetan alpine meadow soils under long-term nitrogen fertilization 显示文摘 | Xiao R Chen B Liu Y Wang C Gu J Feng H Du G Ma X | 2014 | Geomicrobiol J2014，31，： | 1 |
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