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Research Output 1997 2019

1997

Aerodynamic properties of individual fertilizer particles

Grift, T. E., Walker, J. T. & Hofstee, J. W., Apr 24 1997, In : Transactions of the American Society of Agricultural Engineers. 40, 1, p. 13-20 8 p.

Research output: Contribution to journalArticle

aerodynamics
Fertilizers
Aerodynamics
Spreaders
fertilizer

Determining effects of fertilizer particle shape on aerodynamic properties

Walker, J. T., Grift, T. E. & Hofstee, J. W., Apr 24 1997, In : Transactions of the American Society of Agricultural Engineers. 40, 1, p. 21-27 7 p.

Research output: Contribution to journalArticle

aerodynamics
Fertilizers
Aerodynamics
fertilizer
fertilizers

Development of a fertilizer particle accelerator

Grift, T. E. & Hofstee, J. W., Jan 1 1997, In : Journal of Agricultural and Engineering Research. 66, 3, p. 229-233 5 p.

Research output: Contribution to journalArticle

Particle Accelerators
Fertilizers
Particle accelerators
fertilizer
fertilizers

Measurement of velocity and diameter of individual fertilizer particles by an optical method

Grift, T. E. & Hofstee, J. W., Jan 1 1997, In : Journal of Agricultural and Engineering Research. 66, 3, p. 235-238 4 p.

Research output: Contribution to journalArticle

optical method
Fertilizers
Spreaders
fertilizer
fertilizers
1998

Validating FLUENT for the flow of granular materials in aerial spreaders

Bansal, R. K., Walker, J. T., Gardisser, D. R. & Grift, T. E., Jan 1998, In : Transactions of the American Society of Agricultural Engineers. 41, 1, p. 29-35 7 p.

Research output: Contribution to journalArticle

spreaders
Spreaders
Granular materials
Fertilizers
Particle Size
2000
Crowns
skewness
Antennas
Applicators
Antenna grounds

Spread Pattern Analysis Tool (SPAT): II. Examples of aircraft pattern analysis

Grift, T. E., Walker, J. T. & Gardisser, D. R., 2000, In : Transactions of the American Society of Agricultural Engineers. 43, 6, p. 1351-1363 13 p.

Research output: Contribution to journalArticle

aircraft
Aircraft
Calibration
spreaders
Spreaders
2001
aerial application
mass flow
Granular materials
flow measurement
Fertilizers

Mass flow measurement of granular materials in aerial application - Part 2: Experimental model validation

Grift, T. E., Walker, J. T. & Hofstee, J. W., Jan 1 2001, In : Transactions of the American Society of Agricultural Engineers. 44, 1, p. 27-34 8 p.

Research output: Contribution to journalArticle

aerial application
mass flow
Granular materials
flow measurement
model validation

Simulation of low temperature anaerobic digestion of dairy and swine manure

Hill, D. T., Taylor, S. E. & Grift, T. E., Jun 2001, In : Bioresource Technology. 78, 2, p. 127-131 5 p.

Research output: Contribution to journalArticle

Anaerobic digestion
Dairies
Manures
manure
simulation
2002

Testing an online spread pattern determination sensor on a broadcast fertilizer spreader

Grift, T. E. & Hofstee, J. W., May 1 2002, In : Transactions of the American Society of Agricultural Engineers. 45, 3, p. 561-567 7 p.

Research output: Contribution to journalArticle

fertilizer spreaders
Spreaders
Fertilizers
sensors (equipment)
fertilizer
2003

Fundamental mass flow measurement of solid particles

Grift, T. E., Apr 1 2003, In : Particulate Science and Technology. 21, 2, p. 177-193 17 p.

Research output: Contribution to journalArticle

Flow measurement
Sensors
Flow simulation
Optoelectronic devices
Contamination
2004

An autonomous field watching-dog robot for information collection in agricultural fields

Nagasaka, Y., Zhang, Q., Grift, T. E., Kanetani, Y., Umeda, N. & Kokuryu, T., Dec 1 2004, p. 4215-4222. 8 p.

Research output: Contribution to conferencePaper

Robots
Crops
Wheels
Controllers
Sensors

A portable tillage profiler for measuring subsoiling disruption

Raper, R. L., Grift, T. E. & Tekeste, M. Z., Jan 1 2004, In : Transactions of the American Society of Agricultural Engineers. 47, 1, p. 23-27 5 p.

Research output: Contribution to journalArticle

subsoiling
profiler
tillage
Soil
Soils

Control system design for an autonomous field watching-dog robot

Nagasaka, Y., Zhang, Q., Grift, T. E., Knetani, Y., Umeda, N. & Kokuryu, T., Dec 1 2004, Automation Technology for Off-road Equipment - Proceedings of the International Conference, ATOE 2004. Zhang, Q., Iida, M. & Mizushima, A. (eds.). p. 298-304 7 p. 08D. (Proceedings of the International Conference on Automation Technology for Off-road Equipment, ATOE 2004).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Systems analysis
Robots
Control systems
Crops
Wheels
2005

Acoustic compaction layer detection

Grift, T. E., Tekeste, M. Z. & Raper, R. L., Sep 1 2005, In : Transactions of the American Society of Agricultural Engineers. 48, 5, p. 1723-1730 8 p.

Research output: Contribution to journalArticle

Acoustics
acoustics
compaction
Compaction
Soil

Automation for bioprocessing and bioproduction

Ting, K. C. & Grift, T., Oct 1 2005, In : Resource: Engineering and Technology for Sustainable World. 12, 8, 1 p.

Research output: Contribution to journalShort survey

bioprocessing
Automation
automation
planning
Communication

Development of an individual weed treatment system using a robotic arm

Jeon, H. Y., Tian, L. F. & Grift, T. E., Dec 1 2005.

Research output: Contribution to conferencePaper

Robotic arms
personal development
Weed control
Weed Control
Robotics

Robot synergy: A marriage of engineering and biology

Grift, T., Sep 1 2005, In : Resource: Engineering and Technology for Sustainable World. 12, 7, 1 p.

Research output: Contribution to journalShort survey

marriage
robots
Marriage
Agriculture
engineering
2006

Development of low-cost, root collar diameter measurement devices for pine seedlings

Grift, T. E. & Oberti, R., Jun 1 2006, In : Computers and Electronics in Agriculture. 52, 1-2, p. 60-70 11 p.

Research output: Contribution to journalArticle

root crown
Systematic errors
Pinus
seedling
seedlings

Dynamic Friction Coefficient Measurement of Granular Fertiliser Particles

Grift, T. E., Kweon, G., Hofstee, J. W., Piron, E. & Villette, S., Dec 1 2006, In : Biosystems Engineering. 95, 4, p. 507-515 9 p.

Research output: Contribution to journalArticle

Friction
Fertilizers
friction
vanes
fertilizer

Feed Gate Adaptation of a Spinner Spreader for Uniformity Control

Kweon, G. & Grift, T. E., Sep 1 2006, In : Biosystems Engineering. 95, 1, p. 19-34 16 p.

Research output: Contribution to journalArticle

spreaders
Spreaders
Fertilizers
application rate
simulation

Genetic evaluation of root complexity in maize

Bohn, M., Novais, J., Fonseca, R., Tuberosa, R. & Grift, T. E., Dec 1 2006, In : Acta Agronomica Hungarica. 54, 3, p. 291-303 13 p.

Research output: Contribution to journalArticle

fractal dimensions
quantitative trait loci
root systems
corn
digital images
2007

A spinning-tube device for dynamic friction coefficient measurement of granular fertiliser particles

Kweon, G., Grift, T. E. & Miclet, D., Jun 1 2007, In : Biosystems Engineering. 97, 2, p. 145-152 8 p.

Research output: Contribution to journalArticle

Friction
Fertilizers
spinning
friction
fertilizer
2008

Estimating mean particle diameter in free-fall granular particle flow using a Poisson model in space

Grift, T. E. & Crespi, C. M., Sep 1 2008, In : Biosystems Engineering. 101, 1, p. 28-35 8 p.

Research output: Contribution to journalArticle

Space Simulation
Sensors
density current
Measurement errors
spacing

Estimation of the flow rate of free falling granular particles using a Poisson model in time

Grift, T. E. & Crespi, C. M., Sep 1 2008, In : Biosystems Engineering. 101, 1, p. 36-41 6 p.

Research output: Contribution to journalArticle

Flow rate
Sensors
sensors (equipment)
Systems Theory
sensor
2009

A laser based tabletop localization system for educational robots

Bac, C. W., Grift, T. E., Bhalerao, K. & Menezes, G., Dec 1 2009, American Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009. p. 180-192 13 p. (American Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

robots
lasers
Lasers
sensors (equipment)
Robotics

Engineering solutions for biomass feedstock production - pre-harvest crop monitoring system

Ahamed, T., Tian, L., Zhang, Y., Zhang, Q., Grift, T. E. & Ting, K. C., 2009, American Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009. Vol. 3. p. 1618-1631 14 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

energy crops
feedstocks
cameras
Biomass
remote sensing

Maize root complexity analysis using a Support Vector Machine method

Zhong, D., Novais, J., Grift, T. E., Bohn, M. & Han, J., Nov 1 2009, In : Computers and Electronics in Agriculture. 69, 1, p. 46-50 5 p.

Research output: Contribution to journalArticle

Curve fitting
Fractal dimension
Support vector machines
maize
corn

M-estimation of Boolean models for particle flow experiments

Osborne, J. A. & Grift, T. E., May 1 2009, In : Journal of the Royal Statistical Society. Series C: Applied Statistics. 58, 2, p. 197-210 14 p.

Research output: Contribution to journalArticle

M-estimation
Passage Time
Boolean Model
Experiment
Probability Model

Plant specific direct chemical application field robot

Jeon, H. Y., Tian, L., Bode, L., Grift, T. E. & Hager, A. G., Dec 1 2009, American Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009. p. 692-711 20 p. (American Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

robots
Robotics
weeds
Lighting
computer vision

Stereovision system and image processing algorithms for plant specific application

Jeon, H. Y., Tian, L., Grift, T., Bode, L. & Hager, A., Dec 1 2009, American Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009. p. 147-170 24 p. (American Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

image analysis
neural networks
Soil
Lighting
lighting

Two fruit counting techniques for citrus mechanical harvesting machinery

Ehsani, M. R., Grift, T. E., Maja, J. M. & Zhong, D., Mar 1 2009, In : Computers and Electronics in Agriculture. 65, 2, p. 186-191 6 p.

Research output: Contribution to journalArticle

mechanical harvesting
Fruits
machinery
Machinery
Citrus
2010

A new approach to crop-row detection in corn

Zhang, L. & Grift, T., Jan 1 2010, American Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010. American Society of Agricultural and Biological Engineers, p. 3950-3964 15 p. (American Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010; vol. 5).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zea mays
corn
crops
filters
weeds

Specific energy consumption of biomass particle production and particle physical property

Miao, Z., Grift, T. E., Hansen, A. C. & Ting, K. C., Jan 1 2010, American Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010. American Society of Agricultural and Biological Engineers, p. 584-604 21 p. (American Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

specific energy
energy use and consumption
Salix babylonica
Particle Size
Biomass
2011

Agricultural robot turning in the headland of corn fields

Xue, J. & Grift, T. E., Jul 4 2011, Advanced Research on Mechanical Engineering, Industry and Manufacturing Engineering. p. 780-784 5 p. (Applied Mechanics and Materials; vol. 63-64).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robots
Cameras
DC motors
Fuzzy logic
Crops

Design and testing of an intra-row mechanical weeding machine for corn

Cordill, C. & Grift, T. E., Nov 1 2011, In : Biosystems Engineering. 110, 3, p. 247-252 6 p.

Research output: Contribution to journalArticle

Weed control
mechanical weed control
Zea mays
maize
corn

Development of a tabletop guidance system for educational robots

Bac, C. W., Grift, T. E. & Menezes, G., Oct 17 2011, In : Applied Engineering in Agriculture. 27, 5, p. 829-838 10 p.

Research output: Contribution to journalArticle

Educational robots
Robots
Sensor arrays
Laser beams
Global positioning system

Effect of biodiesel on engine performances and emissions

Xue, J., Grift, T. E. & Hansen, A. C., Feb 2011, In : Renewable and Sustainable Energy Reviews. 15, 2, p. 1098-1116 19 p.

Research output: Contribution to journalReview article

Biodiesel
Engines
Crude oil
Alternative fuels
Air pollution

Energy requirement for comminution of biomass in relation to particle physical properties

Miao, Z., Grift, T. E., Hansen, A. C. & Ting, K. C., Mar 1 2011, In : Industrial Crops and Products. 33, 2, p. 504-513 10 p.

Research output: Contribution to journalArticle

energy requirements
particle size
physical properties
Panicum virgatum
biomass

High-throughput phenotyping technology for maize roots

Grift, T. E., Novais, J. & Bohn, M., Sep 1 2011, In : Biosystems Engineering. 110, 1, p. 40-48 9 p.

Research output: Contribution to journalArticle

Fractals
Zea mays
fractal dimensions
Fractal dimension
maize

Lignocellulosic biomass feedstock supply logistic analysis

Miao, Z., Shastri, Y., Grift, T. E., Hansen, A. C. & Ting, K. C., Jan 1 2011, American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011. American Society of Agricultural and Biological Engineers, p. 5440-5460 21 p. (American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011; vol. 7).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

logit analysis
feedstocks
biomass
biorefining
supply balance

The farm of the future

Grift, T. E., Jan 2011, In : Resource: Engineering and Technology for Sustainable World. 18, 1, p. 4 1 p.

Research output: Contribution to journalComment/debate

Farms
farms
2012

A LIDAR-based crop height measurement system for Miscanthus giganteus

Zhang, L. & Grift, T. E., Jul 1 2012, In : Computers and Electronics in Agriculture. 85, p. 70-76 7 p.

Research output: Contribution to journalArticle

Miscanthus giganteus
lidar
Crops
crop
crops

A monocular vision-based diameter sensor for Miscanthus giganteus

Zhang, L. & Grift, T. E., Mar 1 2012, In : Biosystems Engineering. 111, 3, p. 298-304 7 p.

Research output: Contribution to journalArticle

Monocular Vision
Miscanthus giganteus
sensors (equipment)
Lasers
Cameras

Cutting energy characteristics of Miscanthus x giganteus stems with varying oblique angle and cutting speed

Johnson, P. C., Clementson, C. L., Mathanker, S. K., Grift, T. E. & Hansen, A. C., May 1 2012, In : Biosystems Engineering. 112, 1, p. 42-48 7 p.

Research output: Contribution to journalArticle

Miscanthus giganteus
Equipment and Supplies
stems
energy
Miscanthus

Determination of energy requirements for densifying miscanthus and switchgrass feedstock with a medium-scaled compressor

Miao, Z., Phillips, J. W., Grift, T. E. & Mathanker, S. K., Jan 1 2012, American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012. American Society of Agricultural and Biological Engineers, p. 3844-3854 11 p. (American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012; vol. 5).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

compressors
Miscanthus
Panicum virgatum
feedstocks
energy requirements

Impact of cutting speed, blade type, and blade angle on miscanthus harvesting energy requirement

Maughan, J. D., Mathanker, S. K., Fehrenbacher, B. M., Grift, T. E. & Hansen, A. C., Jan 1 2012, American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012. American Society of Agricultural and Biological Engineers, p. 3245-3253 9 p. (American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012; vol. 4).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Miscanthus
Energy harvesting
energy requirements
power requirement
cutters

Lignocellulosic biomass feedstock transportation alternatives, logistics, equipment configurations, and modeling

Miao, Z., Shastri, Y., Grift, T. E., Hansen, A. C. & Ting, K. C., May 1 2012, In : Biofuels, Bioproducts and Biorefining. 6, 3, p. 351-362 12 p.

Research output: Contribution to journalReview article

Feedstocks
Logistics
Biomass
Costs
Agricultural wastes

Variable field-of-view machine vision based row guidance of an agricultural robot

Xue, J., Zhang, L. & Grift, T. E., Jun 1 2012, In : Computers and Electronics in Agriculture. 84, p. 85-91 7 p.

Research output: Contribution to journalArticle

robots
computer vision
field of view
Computer vision
Robots