individual publications

• academic article

  • Quality evaluation of apples based on surface defects:development of an automated inspection system.  Postharvest Biology and Technology.  36:281-290. 2005
  • Reply to Comments on Pore-scale visualization of colloid transport and retention in partly saturated porous media.  Vadose Zone Journal.  4:957-958. 2005
  • Transport and retention mechanisms of colloids in partially saturated porous media.  Vadose Zone Journal.  4:184-195. 2005
  • Pore-scale visualization of colloid transport and retention in partly saturated porous media.  Vandose Zone Journal.  3:444-450. 2004
  • Apple Orientation on Two Conveyors: Performance and Predictability based on Shape Characteristics of Apples.  Transactions of the ASAE.  44:99-109. 2001
  • Measurement of Fluid Contents by Light Transmission in Transient Three-Phase Oil-Water-Air Systems in Sand.  Water Resources Research.  37:1859-1868. 2001
  • Visualization by Light Transmission of Oil and Water Contents in Transient Two-Phase Flow Fields.  Journal of Contaminant Hydrology.  31:337-348. 1998
  • Detecting internal breakdown in apples using interactance measurements.  Postharvest Biology and Technology.  10:15-19. 1997
  • An Image Processing Algorithm to Find New and Old Bruises.  ASAE Trans..  11:751-757. 1995
  • Camera system effects on detecting watercore in ' Red Delicious' apples.  Trans. of ASAE.  37:873-877. 1994
  • Effects of camera systems on detecting watercore in Red Delicious apples.  Trans. ASAE.  37:873-877. 1994
  • Influence of time, bruise-type, and severity on near-infrared reflectance from apple surfaces for automatic bruise detection.  Trans. of ASAE.  37:1571-1575. 1994
  • Mechanical harvestability of Y-shaped and pyramid-shaped 'Empire' and 'Delicious' apple trees.  Journal of American Society of Horticultural Science.  115:368-374. 1990
  • The flow of pesticides through preferential paths in soils.  New York Food & Life Sciences Quarterly.  18:20-23. 1988
  • Apple harvesting with a double impact shaker.  Transactions of the American Society of Agricultural and Biological Engineers (ASABE).  25:1567-1574. 1982
  • Apple harvesting with an inertial vs. impulse trunk shaker on open-center and central leader trees - Part II.  Transactions of the American Society of Agricultural and Biological Engineers (ASABE).  22:983-988. 1979
  • Apple harvesting with inertial vs. impulse trunk shaker on open-center and central-leader trees.  Transactions of the American Society of Agricultural and Biological Engineers (ASABE).  21:407-413. 1978

• booksection

  • Visualization of unstable fingered flow and measurement of fluid contents by light transmission in transient-three-phase oil-water-air systems in sand 2001

• chapter

  • Apple Orientation on Automatic Sorting Equipment.  Sensors for Nondestructive Testing: Measuring the Quality of Fresh Fruits and Vegetables, Publication No. 97. 1997
  • Reflectance Spectra of Surface Defects on Apples.  Sensors for Nondestructive Testing: Measuring the Quality of Fresh Fruits and Vegetables, Publication No. 97. 1997
  • Detecting Surface Defects (Wounds, Bruises and Decay).  Non-Destructive Technologies for Quality Evaluation of Fruits and Vegetables. 72-79. 1994
  • Detection of Internal Disorders.  Non-Destructive Technologies for Quality Evaluation of Fruits and Vegetables. 80-85. 1994

• conference paper

  • A multi-spectral inspection station detects defects on apples.  Proceedings of SPIE: Biological Quality and Precision Agriculture II. 37-46. 2000
  • Device to Orient Apples for Automatic Inspection.  Proc. of FPAC IV Food Processing Automation Conference, Nov. 4-5, Chicago, IL. 1995
  • Cooccurrence Texture Feature Variation for a Moving Window Over Apple Images.  SPIE Proceedings. 366-376. 1994
  • Detection of internal browning in apples by light transmission.  Proc. SPIE: Optics in Agriculture, Forestry, and Biological Processing. 377-384. 1994
  • Near-IR and Color Imaging for Bruise Detection on Golden Delicious Apples.  SPIE (Internat. Soc. of Optical Engineering) Proceedings. 33-44. 1992
  • Ultrasonic Images Allow Automated Grading and Inspection of Beef and Swine.  Proc. Food Processing Automation Conference. 1990
  • Beef, Apples and Grapevines: Machine Vision Developments in Agricultural Engineering.  Robots 12 and Vision '88: Conference Proceedings. 15-26. 1988
  • The role of impact shaking in the harvest of apples.  International Symposium on Fruit, Nut and Vegetable Harvesting Mechanization. 89-96. 1984

• document part

  • Assessment of Surface Quality for Apples 1998
  • Mechanical harvest studies with apples grown on a Y-trellis.  1123. 1987

• report

  • Apple Damage Segmentation Utilizing Reflectance Spectra of the Defects.  17. 1997
  • Apple Orientation on Automatic Sorting Equipment 1997
  • Apple Stem and Calyx Identification for Automatic Sorting.  12. 1997
  • Inspection of Processed Fruit Before and After Peeling.  19. 1997
  • Reflectance Spectra of Surface Defects on Apples 1997
  • Apple Orientation on Automatic Sorting Equipment 1995
  • Dynamic Response of Ground Isolation Devices used on Livestock Facilities.  16. 1995
  • Holstein Cow Impedance from Muzzle to Front, Rear, and all Hooves.  18. 1995
  • Neighborhood, Window, and Bruise Size for Determining Coocurrence Matrix Values for Apple Bruise Detection.  18. 1994
  • Improvements in an Image Processing Algorithm to Find New and Stored Apple Bruises.  15. 1993
  • Influence of time and bruise-type on near-infrared reflectance for automatic bruise detection.  13. 1993
  • Investigation of Texture Analysis Features to Detect Apple Bruises.  14. 1993
  • Optimizing Lighting and Lens Aperture for Maximum contrast Between Bruised and Unbruised Apple Tissue.  14. 1993
  • Detecting Watercore in Apples with Machine Vision.  19. 1991