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United States Department of Agriculture

Agricultural Research Service

ISL Publications - Alan Lefcourt
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1999 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007

For selected publications, click on the PDF icon icon to view the full article in PDF format. The free Adobe Acrobat Reader® is needed to view the PDF files on this page.

A publications list drawn from the ARS database for Alan Lefcourt is also available, with access to an abstract/summary for each publication.


1999

  1. Lefcourt, A.M., G.B. Huntington, R.M. Akers, D.L. Wood, and J. Bitman. 1999. Circadian and ultradian rhythms of body temperature and peripheral concentrations of insulin and nitrogen in lactating dairy cows. Dom. Anim. Endocrin. 16(1):41-55.
  2. Lefcourt, A.M. 1999. Method to monitor the precision of milk yields recorded at individual milking stalls on a daily basis. J. Dairy Sci. 82:953-956.
  3. Lefcourt, A.M., R. Barfield, B. Erez, M.A. Varner, and U. Tasch. 1999. A noninvasive radiotelemetry system to monitor heart rate for assessing stress responses of bovines. J. Dairy Sci. 82:1179-1187.

2001

  1. Capuco, A.V., D.L. Wood, T.H. Elsasser, S. Kahl, A.M. Lefcourt, and L.S. Piperova. 2001. Effect of somatotrophin on thyroid hormones and cytokines in lactating dairy cows during al libitum and restricted intake. J. Dairy Sci. 84: 2430-2439.
  2. click here to view the PDF of this article Lefcourt, A.M. 2001. Large environmental chamber: Ammonia recovery calibration. Applied Engineering in Agriculture. 17(5): 683-689.
  3. click here to view the PDF of this article Lefcourt, A.M., B. Buell, and U. Tasch. 2001. Large environmental chamber: Design and operating characteristics. Applied Engineering in Agriculture. 17(5): 691-701.
  4. Lefcourt, A.M., and J.J. Meisinger. 2001. Effect of adding alum or zeolite to dairy slurry on ammonia volatilization and chemical composition. J. Dairy Sci. 84: 1814-1821.
  5. click here to view the PDF of this article Meisinger, J.J., A.M. Lefcourt, and R.B. Thompson. 2001. Design and validation of a mobile windtunnel used for measurement of ammonia emissions. Applied Engineering in Agriculture. 17(3): 375-381.
  6. Meisinger, J.J., A.M. Lefcourt, J. Van Kessel, and V. Wilkerson. 2001. Managing ammonia emissions from dairy cows by amending slurry with alum or zeolite or by diet modification. The Scientific World.

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2002

  1. click here to view the PDF of this article Kim, M.S., A.M. Lefcourt, K. Chao, Y.R. Chen, I. Kim, and D.E. Chan. 2002. Multispectral detection of fecal contamination on apples based on hyperspectral imagery: Part I. Application of visible and near-infrared reflectance imaging. Transactions of the ASAE. 45(6): 2027-2037.
  2. click here to view the PDF of this article Kim, M.S., A.M. Lefcourt, Y.R. Chen, I. Kim, D.E. Chan, K. Chao. 2002. Multispectral detection of fecal contamination on apples based on hyperspectral imagery: Part II. Application of hyperspectral fluorescence imaging. Transactions of the ASAE. 45(6): 2039-2047.
  3. click here to view the PDF of this article Lefcourt, A.M. 2002. Some potential problems for measuring ammonia emissions from farm structures. Transactions of the ASAE. 45(5): 1585-1591.

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2003

  1. Kim, M.S., A.M. Lefcourt and Y.R. Chen. 2003. Multispectral laser-induced fluorescence imaging system for large biological samples. Applied Optics. 42(19): 3927-3934.
  2. Kim, M.S., A.M. Lefcourt, and Y.R. Chen. 2003. Optimal fluorescence excitation and emission bands for detection of fecal contamination. Journal of Food Protection. 66(7): 1198-1207.
  3. click here to view the PDF of this article Lefcourt, A.M., M.S. Kim, and Y.R. Chen. 2003. Automated detection of fecal contamination of apples by multispectral laser-induced fluorescence imaging. Applied Optics. 42(19): 3935-3943.

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2004

  1. click here to view the PDF of this article Cheng, X., Y.R. Chen, Y. Tao, C.Y. Wang, M.S. Kim, and A.M. Lefcourt. 2004. A novel integrated PCA and FLD method on hyperspectral image feature extraction for cucumber chilling damage inspection. Transactions of ASAE. 47(4): 1333-1320.
  2. click here to view the PDF of this article Kim, M.S., A.M. Lefcourt, Y.R. Chen, and S. Kang. 2004. Uses of hyperspectral and multispectral laser induced fluorescence imaging techniques for food safety inspection. Key Engineering Materials 270-273:1055-1063.

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2005

  1. click here to view the PDF of this article Kim, M.S., A.M. Lefcourt, and Y.R. Chen. 2005. Multispectral laser induced fluorescence imaging techniques for nondestructive assessment of postharvest food quality and safety. Proc. 5th International Postharvest Symposium, eds. F. Mencarelli and P. Tonutti. Acta Hort. 682: 1379-1385.
  2. click here to view the PDF of this article Kim, M.S., A.M. Lefcourt, Y.R. Chen, and Y. Tao. 2005. Automated detection of fecal contamination of apples based on multispectral fluorescence image fusion. Journal of Food Engineering. 71(1):85-91.
  3. click here to view the PDF of this article Lefcourt, A.M., M.S. Kim, and Y.R. Chen. 2005. A transportable fluorescence imaging system for detecting fecal contaminants. Computers and Electronics in Agriculture. 48(1):63-74.
  4. click here to view the PDF of this article Lefcourt, A.M., M.S. Kim, and Y.R. Chen. 2005. Detection of fecal contamination on apples with nanosecond-scaled time-resolved imaging of laser-induced fluorescence. Applied Optics. 44(7):1160-1170.
  5. click here to view the PDF of this article Lefcourt, A.M., M.S. Kim, and Y.R. Chen. 2005. Detection of fecal contamination in apple calyx by multispectral laser-induced fluorescence. Transactions of ASAE 48(4):1587-1593.
  6. click here to view the PDF of this article Vargas, A.M., M.S. Kim, Y. Tao, A.M. Lefcourt, Y.R. Chen, Y. Luo, Y. Song, and R. Buchanan. 2005. Detection of fecal contamination on cantaloupes using hyperspectral fluorescence imagery. Journal of Food Science. 70(8):E471-E476.

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2006

  1. click here to view the PDF of this article Kim, M.S., Y.R. Chen, S. Kang, I. Kim, A.M. Lefcourt, and M. Kim. 2006. Fluorescence characteristics of wholesome and unwholesome chicken carcasses. Applied Spectroscopy. 60(10): 1210-1216.
  2. Kim, M.S., B.K. Cho, C.C. Yang, K. Chao, A.M. Lefcourt, Y.R. Chen. 2006. Hyperspectral reflectance and fluorescence line-scan imaging system for online detection of fecal contamination on apples. SPIE Proceedings, Volume 6381 – Optics for Natural Resources, Agriculture, and Foods (Y.R. Chen, G.E. Meyer, and S.I. Tu, eds.) (in press)
  3. Lefcourt, A.M., P. Narayanan, Y. Tasch, R. Rostamian, M.S. Kim, Y.R. Chen. 2006. Development of video technology to analyze dynamics of inertia-based apple orientation. SPIE Proceedings, Volume 6381, Optics for Natural Resources, Agriculture, and Foods (Y.R. Chen, G.E. Meyer, and S.I. Tu, eds), 63810Q.

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2007

  1. click here to view the PDF of this article Liu, Y., Y.R. Chen, M.S. Kim, D.E. Chan, and A.M. Lefcourt. 2007. Development of simple algorithms for the detection of fecal contaminants on apples from visible/near infrared hyperspectral reflectance imaging. Journal of Food Engineering. 81(2007): 412-418.
  2. Kim, M.S., Y.R. Chen, B. Cho, K. Chao, C. Yang, A.M. Lefcourt, and D.E. Chan. Hyperspectral reflectance and fluorescence line-scan imaging for online quality and safety inspection of apples. Sensing and Instrumentation for Food Quality and Safety. (manuscript accepted, June 2007)

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Website: http://www.ars.usda.gov/ba/anri/isl



Last Modified: 6/15/2007
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