@article{abubakar_young_johnson_weeks_2003, title={Modeling moisture and chemical changes during bulk curing of flue-cured tobacco}, volume={46}, DOI={10.13031/2013.13935}, abstractNote={Mathematical models to predict moisture content, chlorophyll, starch, and reducing sugar concentrations were developed as a function of curing variables like temperature, initial moisture content, airflow rate, time, and initial chemical concentrations. The moisture removal model was based on a two–term (liquid and vapor) thin–layer drying equation, while chlorophyll, starch, and respiration models were based on first–order rate equations. Several product parameters required in secondary equations were determined through regression and comparison of root mean square errors. The models were fitted to the experimental data collected during the first year of the experiments (1997) to determine the product parameters by minimizing root mean square errors. The models were then verified using the experimental data obtained in the second year of the experiments. The models will help predict effects of curing variables on rate of moisture removal and chemical concentrations in the cured tobacco leaf. This information will contribute to the optimization of the curing process in terms of process efficiency and product quality.}, number={4}, journal={Transactions of the ASAE}, author={Abubakar, Y. and Young, J. H. and Johnson, W. H. and Weeks, W. W.}, year={2003}, pages={1123–1134} } @article{johansson_whitaker_hagler_giesbrecht_young_bowman_2000, title={Testing shelled corn for aflatoxin, Part I: Estimation of variance components}, volume={83}, number={5}, journal={Journal of AOAC International}, author={Johansson, A. S. and Whitaker, T. B. and Hagler, W. M. and Giesbrecht, F. G. and Young, J. H. and Bowman, D. T.}, year={2000}, pages={1264–1269} } @article{johansson_whitaker_giesbrecht_hagler_young_2000, title={Testing shelled corn for aflatoxin, Part II: Modeling the observed distribution of aflatoxin test results}, volume={83}, number={5}, journal={Journal of AOAC International}, author={Johansson, A. S. and Whitaker, T. B. and Giesbrecht, F. G. and Hagler, W. M. and Young, J. H.}, year={2000}, pages={1270–1278} } @article{johansson_whitaker_giesbrecht_hagler_young_2000, title={Testing shelled corn for aflatoxin, Part III: Evaluating the performance of aflatoxin sampling plans}, volume={83}, number={5}, journal={Journal of AOAC International}, author={Johansson, A. S. and Whitaker, T. B. and Giesbrecht, F. G. and Hagler, W. M. and Young, J. H.}, year={2000}, pages={1279–1284} } @article{anderson_abubakar_young_johnson_1998, title={Pressure vs airflow characteristics through fresh intact and cut-strip tobacco}, volume={41}, DOI={10.13031/2013.17318}, abstractNote={Pressure versus airflow characteristics were determined for various densities and cut sizes of green tobacco leaves with leaf surfaces oriented either parallel or perpendicular to the airflow. The flowrate measurement device consisted of a fan, PVC pipe, orifice plate, sealing apparatus, and a plenum. Graphs of pressure gradient versus superficial velocity showed a nearly linear log-log relationship. Three equations were used to fit the data: the power equation, ASAE standard equation, and Ergun equation. The Ergun equation provided the best fit in most cases. Analysis of variance of equation parameters with experiment variables showed that the pressure gradient was a function of the leaf density squared. The only other factor affecting the pressure gradient was the leaf orientation. For a given velocity, leaves oriented perpendicular to the airflow had a pressure gradient about 10 times greater than that of the leaves oriented parallel to the airflow.}, number={6}, journal={Transactions of the ASAE}, author={Anderson, D. S. and Abubakar, Y. and Young, J. H. and Johnson, W. H.}, year={1998}, pages={1747–1753} } @article{young_stikeleather_1991, title={Use of TK solver in agricultural engineering instruction}, volume={34}, DOI={10.13031/2013.31662}, abstractNote={ABSTRACT, TK Solver is an equation solving software package which has been successfully used in agricultural engineering instruction at North Carolina State University for several years. The greatest advantages of the software are in the solution of problems requiring iterative solutions, solving the same problem for many different values of the input variables, and solving problems where the equations remain unchanged but the dependent and independent variables are often switched. This manuscript describes two example problems which illustrate the use of the software package in engineering instruction.}, number={1}, journal={Transactions of the ASAE}, author={Young, J. H. and Stikeleather, L. F.}, year={1991}, pages={301} } @article{young_tutor_cain_1990, title={Recirculation and solar energy collection to assist peanut drying}, volume={6}, DOI={10.13031/2013.26391}, abstractNote={A four-wagon, peanut drying facility using partial air recirculation and a solar attic was designed, constructed, and tested. Energy consumption in the facility was approximately 40% less than in conventional peanut drying systems. It was estimated that 70% of the energy savings was due to recirculation and 30% due to solar energy collection.}, number={3}, journal={Applied Engineering in Agriculture}, author={Young, J. H. and Tutor, J. C. and Cain, G. L.}, year={1990}, pages={329} } @article{young_moore_1972, title={Factors affecting planting quality of seed peanuts. 2. Effect of harvest methods}, volume={27}, number={2}, journal={Oleagineux (Paris)}, author={Young, J. H. and Moore, R. P.}, year={1972}, pages={89} } @article{young_whitaker_1971, title={Evaluation of the diffusion equation for describing thin-layer drying of peanuts in the hull}, volume={14}, DOI={10.13031/2013.38282}, number={2}, journal={Transactions of the ASAE}, author={Young, J. H. and Whitaker, T. B.}, year={1971}, pages={309} } @article{young_moore_allen_1971, title={Factors affecting planting quality of seed peanuts. 1. Effect of date of digging}, volume={26}, number={8}, journal={Oleagineux (Paris)}, author={Young, J. H. and Moore, R. P. and Allen, W. J.}, year={1971}, pages={551} }