Publications (Clicking on the reprint icon will take you to the publication reprint.)

Characterization of hydraulic nozzles for droplet size and spray coverage - (Peer Reviewed Journal)

Guler, H., Zhu, H., Ozkan, H.E., Ling, P. 2013. Characterization of hydraulic nozzles for droplet size and spray coverage. Atomization and Sprays. 22(8):627-645.

Tree growth with various fertilizer application methods in container production - (Peer Reviewed Journal)

(25-Nov-12)

Dispersion and evaporation of droplets amended with adjuvants on soybeans - (Peer Reviewed Journal)

Gimenes, M., Zhu, H., Raetano, C., Oliveira, R. 2013. Dispersion and evaporation of droplets amended with adjuvants on soybeans. Crop Protection Journal. 44:84-90.

Unimpeded air velocity profiles of air-assisted five-port sprayer - (Peer Reviewed Journal)

Gu, J., Zhu, H., Ding, W. 2012. Unimpeded air velocity profiles of air-assisted five-port sprayer. Transactions of the ASABE. 55(5):1659-1666.

Computational fluid dynamics applications to improve crop production systems - (Peer Reviewed Journal)

Bartzanas, T., Kacira, M., Zhu, H., Karmaker, S., Tamimi, E., Katsoulas, N., Lee, I.B., Kittas, C. 2013. Computational fluid dynamics applications to improve crop production systems. Computers and Electronics in Agriculture. 93:151-167.

Development of variable-rate sprayer with laser scanning sensor to synchronize spray outputs to tree structures - (Peer Reviewed Journal)

Chen, Y., Zhu, H., Ozkan, E. 2012. Development of variable-rate sprayer with laser scanning sensor to synchronize spray outputs to tree structures. Transactions of the ASABE. 55(3):773-781.

Two intelligent spraying systems developed for tree crop production - (Abstract Only)

Zhu, H., Ozkan, E., Derksen, R.C., Reding, M.E., Ranger, C.M., Canas, L., Krause, C.R., Locke, J.C., Ernst, S.C., Zondag, R.H., Fulcher, A., Rosetta, R., Jeon, H.Y., Chen, Y., Gu, J., Liu, H., Shen, Y., Rios, A.A. 2012. Two intelligent spraying systems developed for tree crop production. Meeting Abstract. 6th National Small Farm Conference,Memphis TN, September 18-20, 2012. p. 69-70.

Air velocity distributions from a variable-rate air-assisted sprayer for tree applications - (Proceedings)

Zhu, H., Gu, J., Chen, Y., Liu, H., Dong, X., Ding, W., Ozkan, E., Krause, C.R. 2012. Air velocity distributions from a variable-rate air-assisted sprayer for tree applications. CIGR-AgEng 2012: International Conference of Agricultural Engineering, July 8-12, 2012, Valencia, Spain. Paper No. C1547.

Development of Intelligent Spray Systems for Nursery Crop Production - (Abstract Only)

Zhu, H., Ozkan, E., Derksen, R.C., Ranger, C.M., Reding, M.E., Canas, L., Krause, C.R., Locke, J.C., Ernst, S.C., Zondag, R.H., Fulcher, A., Rosetta, R., Jeon, H.Y., Chen, Y., Gu, J., Hui, L., Shen, Y., Rios, A.A. 2012. Development of Intelligent Spray Systems for Nursery Crop Production. Meeting Abstract. 2012 ASHS Annual Conference, Miami Florida, July 31-August 3, 2012, Paper #8392.

A System to investigate 3-D droplet impact on leaf surfaces - (Proceedings)

Dong, X., Zhu, H., Yang, X., Jia, W. 2012. A System to investigate 3-D droplet impact on leaf surfaces. ASABE Annual International Meeting. Paper No. 121337317.

Air velocity distributions from air-assisted five-port sprayer - (Proceedings)

Gu, J., Zhu, H., Ding, W. 2012. Air velocity distributions from air-assisted five-port sprayer. ASABE Annual International Meeting. Paper No. 121337320.

An electronic flow control system for a variable-rate tree sprayer - (Proceedings)

Liu, H., Zhu, H., Chen, Y., Shen, Y., Ozkan, H.E. 2012. An electronic flow control system for a variable-rate tree sprayer. ASABE Annual International Meeting. Paper No. 121337321.

Evaporation rate of emulsion and oil-base emulsion pheromones - (Proceedings)

Xu, L., Ji, Y., Zhou, H., Zhu, H., Thistle, H.W., Krause, C.R. 2012. Evaporation rate of emulsion and oil-base emulsion pheromones. ASABE Annual International Meeting. Paper no. 121340956.

Half the Price for Insect and Disease Control, Is It Possible? - (Popular Publication)

Zhu, H., Zondag, R., Krause, C.R., Daley, J., Lyons, B., Merrick, J., Hammersmith, D., Lee, J., Holahan, M., Shelton, M., Geary, D., Demaline, T., Harding, A., Champion, B., Losely, K., Gilson, B., Hendricks, W. 2012. Half the Price for Insect and Disease Control, Is It Possible?. The Buckeye. 23(3):15-21.

Droplet size distributions of adjuvant-amended sprays from an air-assisted five-port PWM nozzle     - (Peer Reviewed Journal)

Gu, J., Zhu, H., Ding, W., Jeon, H. 2011. Droplet size distributions of adjuvant-amended sprays from an air-assisted five-port PWM nozzle. Atomization and Sprays. 21(3):263-274.

Development of variable-rate sprayer for nursery liner applications     - (Peer Reviewed Journal)

Jeon, H., Zhu, H. 2012. Development of variable-rate sprayer for nursery liner applications. Transactions of the ASABE. 55(1):303-312.

Performance evaluation of a newly developed variable rate sprayer for nursery liner applications - (Peer Reviewed Journal)

Jeon, H., Zhu, H., Derksen, R.C., Ozkan, E., Krause, C.R. 2012. Performance evaluation of a newly developed variable rate sprayer for nursery liner applications. Transactions of the ASABE. 54(6):1997-2007.

Reduced use of pesticides for effective controls of arthropod pests and plant diseases - (Peer Reviewed Journal)

Zhu, H., Zondag, R.H., Krause, C.R., Merrick, J., Daley, J. 2011. Reduced use of pesticides for effective controls of arthropod pests and plant diseases. Journal of Environmental Horticulture. 29(3):143-151.

An experimental variable-rate sprayer for nursery and orchard applications - (Proceedings)

Chen, Y., Zhu, H., Ozkan, E., Derksen, R.C., Krause, C.R. 2011. An experimental variable-rate sprayer for nursery and orchard applications. ASABE Annual International Meeting. Paper No. 1110497. http://asae.frymulti.com/azdez.asp?search=1&JID=5&AID=37207&CID=LOI2011&T=1.

Development of LIDAR-guided sprayer to synchronize spray outputs with canopy structures - (Proceedings)

Chen, Y., Zhu, H., Ozkan, E. 2011. Development of LIDAR-guided sprayer to synchronize spray outputs with canopy structures. ASABE Annual International Meeting. Paper No. http://asae.frymulti.com/azdez.asp?search=1&JID=5&AID=37206&CID=loui2011&T=1.

Spray droplet sizes with additives discharged from an air-assisted variable-rate nozzle - (Proceedings)

Gu, J., Zhu, H., Ding, W., Jeon, H. 2011. Spray droplet sizes with additives discharged from an air-assisted variable-rate nozzle. ASABE Annual International Meeting. Paper No. 1110542. http://asae.frymulti.com/azdez.asp?search=1&JID=5&AID=37221&CID=loui2011&T=1.

A miniature ultrasonic actuator-control system for plant stem diameter micro-variation measurements - (Proceedings)

Gao, G., Zhu, H. 2011. A miniature ultrasonic actuator-control system for plant stem diameter micro-variation measurements. ASABE Annual International Meeting. Paper No. 1110592. http://asae.frymulti.com/azdez.asp?search=1&JID=5&AID=39065&CID=loui2011&T=2.

Verification of a variable rate sprayer for nursery liner applications - (Proceedings)

Jeon, H., Zhu, H., Derksen, R.C., Ozkan, E., Krause, C.R. 2011. Verification of a variable rate sprayer for nursery liner applications. ASABE Annual International Meeting, 8/7-10/11, Louisville, Kentucky. Paper No. 1110497.

Robust crop and weed segmentation under uncontrolled outdoor illumination     - (Peer Reviewed Journal)

Jeon, H., Tian, L.F., Zhu, H. 2011. Robust crop and weed segmentation under uncontrolled outdoor illumination. Sensors. 11(6)6270-6283.

Optimal Spray Application Rates for Ornamental Nursery Liner Production     - (Peer Reviewed Journal)

Zhu, H., Altland, J.E., Derksen, R.C., Krause, C.R. 2011. Optimal spray application rates for ornamental nursery liner production. HortTechnology. 21(3):367-375.

Distribution of Chemical and Microbial Pesticides Delivered Through Drip Irrigation Systems - (Book / Chapter)

Zhu, H., Wang, X., Reding, M.E., Locke, J.C. 2011. Distribution of Chemical and Microbial Pesticides Delivered Through Drip Irrigation Systems. In: Stoytcheva, M. editor. Pesticides - Formulations, Effects, Fate. Rijeka, Croatia: InTech. p 155-180.

Spray technologies for insect and disease control in ornamental nurseries - (Trade Journal)

Zhu, H., Zondag, R. 2011. Spray technologies for insect and disease control in ornamental nurseries. Nursery Management and Production. 58-61.

Capability of patch antennas in a portable harmonic radar system to track insects     - (Peer Reviewed Journal)

Zhu, H., Psychoudakis, D., Brazee, R.D., Thistle, H.W., Volakis, J.L. 2011. Capability of patch antennas in a portable harmonic radar system to track insects. Transactions of the ASABE. 54(1):355-362.

A portable scanning system for evaluation of spray deposit distribution     - (Peer Reviewed Journal)

Zhu, H., Salyani, M., Fox, R.D. 2011. A portable scanning system for evaluation of spray deposit distribution. Computers and Electronics in Agriculture. 76(1):38-43.

Droplet evaporation and spread on waxy and hairy leaves associated with type and concentration of adjuvants     - (Peer Reviewed Journal)

Xu, L., Zhu, H., Ozkan, E., Bagley, B., Krause, C.R. 2011. Droplet evaporation and spread on waxy and hairy leaves associated with type and concentration of adjuvants. Pest Management Science. 67:842-851. DOI: 10.1002/ps.2122.

Development of a desiccated cadaver delivery system to apply entomopathogenic nematodes for control of soil pests - (Peer Reviewed Journal)

Zhu, H., Grewal, P.S., Reding, M.E. 2011. Development of a desiccated cadaver delivery system to apply entomopathogenic nematodes for control of soil pests. Applied Engineering in Agriculture. 27(3):317-324.

Development of Two Intelligent Spray Systems for Ornamental Nurseries - (Proceedings)

Zhu, H., Jeon, H., Chen, Y., Gu, J., Ozkan, H., Derksen, R.C., Reding, M.E., Ranger, C.M., Canas, L., Krause, C.R., Locke, J.C., Zondag, R.H., Ernst, S.C., Fulcher, A., Rosetta, R. 2012. Development of Two Intelligent Spray Systems for Ornamental Nurseries. International Plant Propagators Proceedings. 60:41-46.

Evaluation of Ultrasonic Sensors for the Variable Rate Tree Liner Sprayer Development     - (Peer Reviewed Journal)

Jeon, H., Zhu, H., Derksen, R.C., Ozkan, H., Krause, C.R. 2011. Evaluation of ultrasonic sensors for the variable rate tree liner sprayer development. Computers and Electronics in Agriculture. 75(1):213-221. DOI:10.10161j.compag.2010.11.007.

Efficacious Insect and Disease Control with Reduced Active Ingredient and Carrier Rate - (Abstract Only)

Zhu, H., Zondag, R.H., Krause, C.R. 2010. Efficacious insect and disease control with reduced active ingredient and carrier rate [abstract]. 12th International Congress of Pesticide Chemistry, July 4-8, 2010, Melbourne, Australia. p. 7.

Evaporation Time and Spread Area of Adjuvant-amended Droplets on Waxy and Hairy Leaves - (Proceedings)

Zhu, H., Yu, Y., Xu, L., Ozkan, H.E., Krause, C.R. 2010. Evaporation Time and Spread Area of Adjuvant-amended Droplets on Waxy and Hairy Leaves. Symposium Proceedings. www.ilass.org/recent/conferencepapers/ilass2010-140.pdf.

Evaporation Rate and Development of Wetted Area of Water Droplets with and without Surfactant at Different Locations on Waxy Leaf Surfaces     - (Peer Reviewed Journal)

Xu, L., Zhu, H., Ozkan, E., Thisle, H. 2010. Evaporation Rate and Development of Wetted Area of Water Droplets with and without Surfactant at Different Locations on Waxy Leaf Surfaces. Biosystems Engineering. 106: 58-67.

Adjuvant Effects on Evaporation Rates and Wetted Area of Droplets on Waxy Leaves     - (Peer Reviewed Journal)

Xu, L., Zhu, H., Ozkan, E., Bagley, B., Derksen, R.C., Krause, C.R. 2010. Adjuvant Effects on Evaporation Rates and Wetted Area of Droplets on Waxy Leaves. Transactions of the ASABE. 53(1): 13-20.

Laboratory and Field Tests of Ultrasonic Sensors for Precision Sprayers     - (Proceedings)

Jeon, H.Y., Zhu, H., Derksen, R.C., Ozkan, H.E., Krause, C.R. 2010. Laboratory and Field Tests of Ultrasonic Sensors for Precision Sprayers. American Society of Agricultural and Biological Engineers International Meeting, June 20-23, 2010, Pittsburgh, Pennsylvania. ASABE Paper # 1008804.

A Portable Pixel Recognition System for Evaluating the Distribution of Spray Deposits     - (Proceedings)

Zhu, H., Salyani, M., Fox, R.D. A Portable Pixel Recognition System for Evaluating the Distribution of Spray Deposits. American Society of Agricultural and Biological Engineers International Meeting, June 20-23, 2010, Pittsburgh, Pennsylvania. ASABE Paper # 1008502.

Evaporation and Spread of Droplets with Various Types and Concentrations of Adjuvants on Waxy and Hairy Leaves     - (Proceedings)

Xu, L., Zhu, H., Ozkan, H.E., Bagley, W.E. Evaporation and Spread of Droplets with Various Types and Concentrations of Adjuvants on Waxy and Hairy Leaves. American Society of Agricultural and Biological Engineers International Meeting, June 20-23, 2010, Pittsburgh, Pennsylvania. ASABE Paper # 1008586.

A Real-time Variable-Rate Sprayer for Nursery Liner Applications - (Proceedings)

Jeon, H.Y., Zhu, H., Derksen, R.C., Ozkan, H.E., Krause, C.R. 2010. A Real-time Variable-Rate Sprayer for Nursery Liner Applications. American Society of Agricultural and Biological Engineers International Meeting, June 20-23, 2010, Pittsburgh, Pennsylvania. ASABE Paper #1008801.

ARS Nursery and Floricultural Crop Research in Ohio - (Popular Publication)

Krause, C.R., Altland, J.E., Derksen, R.C., Frantz, J., Locke, J.C., Ranger, C.M., Reding, M.E., Zhu, H. 2009. ARS Nursery and Floricultural Crop Research in Ohio. The Buckeye. December 2009, pg 19-21.

Influence of Spray Formulation and Leaf Surface Structure on Droplet Evaporation and Wetted Area - (Peer Reviewed Journal)

Zhu, H., Yu, Y., Ozkan, H. 2010. Influence of Spray Formulation and Leaf Surface Structure on Droplet Evaporation and Wetted Area. Aspects of Applied Biology. 99:333-340.

Off-Target Loss in Ornamental Nurseries with Different Spray Techniques - (Proceedings)

Zhu, H., Derksen, R.C., Krause, C.R., Zondag, R.H. 2009. Off-Target Loss in Ornamental Nurseries with Different Spray Techniques. Communications in Agricultureand Biological Sciences, Ghent University, Ghent, Belgium. Vol 74(1): 25-36.

Evaporation and Coverage Area of Pesticide Droplets on Hairy and Waxy Leaves     - (Peer Reviewed Journal)

Yu, Y., Zhu, H., Frantz, J., Reding, M.E., Chan, K.C. 2009. Evaporation and Coverage Area of Pesticide Droplets on Hairy and Waxy Leaves. Biosystems Engineering. 104:324-334.

Delivery of Chemical and Microbial Pesticides from Drip Irrigation Emitters     - (Peer Reviewed Journal)

Wang, X., Zhu, H., Reding, M.E., Locke, J.C., Leland, J.E., Derksen, R.C., Spongberg, A.L., Krause, C.R. 2009. Delivery of Chemical and Microbial Pesticides from Drip Irrigation Emitters. Applied Engineering in Agriculture. 25(6):883-893.

Surfactant Droplet Evaporation and Deposition Patterns on Waxy Leaf Surface     - (Proceedings)

Xu, L., Zhu, H., Ozkan, E. 2009. Surfactant Droplet Evaporation and Deposition Patterns on Waxy Leaf Surface. ASABE Annual International Meeting. ASABE paper # 096671, pg 20.

Adjuvant Effects on Evaporation Time and Wetted Area of Droplets     - (Proceedings)

Xu, L., Zhu, H., Ozkan, E., Bagley, B. 2009. Adjuvant Effects on Evaporation Time and Wetted Area of Droplets. ASABE Annual International Meeting, June 21-24, 2009, Reno, NV. Paper #96675.