This thesis focuses on diffusion channel design for broccoli storage, an important cash crop and consumer commodity in Canada. Experiments were first conducted to determine the respiration rate of broccoli in modified atmosphere conditions created by the produce metabolic activity inside closed chambers, at four different temperatures in the cold room of 3, 7, 13, and 24$ sp circ$C. The respiration rate decreased with a reduction of O$ sb2$ concentration inside the chamber. A model to predict the respiration rate of broccoli as a function of O$ sb2$ concentration at different temperatures was developed. Experiments were then carried out to determine the cross sectional area and length of diffusion channel leading to various final O$ sb2$ (steady-state) concentrations during the storage of broccoli. Combinations of cross sectional area of 0.04, 0.18, and 1.15 cm$ sp2$ and length of 0.6, 3, 7, 12, 18, and 25 cm were tested. The carbon dioxide produced through respiratory process was absorbed by placing hydrated lime inside the chambers such that the two-component molecular diffusion model by Ratti et al. (1993) could be evaluated. The length and cross sectional area of diffusion channel have a significant effect on the final level of O$ sb2$ (steady-state) concentration. The Ratti model then served as a basis for a modified model for predicting the length of diffusion channel required to obtain a given O$ sb2$ concentration as a function of the mass of stored broccoli and the cross sectional area of the diffusion channel. (Abstract shortened by UMI.)

No description available.

Graduation date: 1989

Thesis (Ph. D.)--Ohio University, November, 1992. / Title from PDF t.p.

Thesis (Ph. D.)--Ohio University, August, 1981. / Title from PDF t.p.

Thesis (DR. P.H.)--University of Michigan.

Thesis (DR. P.H.)--University of Michigan.

Mode of access: Internet via World Wide Web. Available at http://hdl.handle.net/1947/9668. / "October 2008" Title from PDF cover (viewed on 25 September, 2009) Includes bibliographical references.

Thesis (M.S.) University of Missouri-Columbia, 2004. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (June 30, 2006). Vita. Includes bibliographical references.

Thesis (BTech (Fashion Design))--Cape Peninsula University of Technology, 2010 / This dissertation will focus on a security focused range of ladies clubbing apparel, adapted for the urban lifestyle. The dissertation is based on the theory of the Supermodern Condition and the Supermodern Design Aesthetic, by Marc Auge. I will investigate the topics of street and contact crime and also means of design that incorporate safety measures into contemporary fashion apparel. The aim of this dissertation was to create a range that would allow for the integration of storage for young ladies personal items into their clothing. This range would allow the wearer enhanced mobility and liberate them from cumbersome bags and purses, in an urban clubbing setting. The design inspiration is based on contemporary fashion styling and trends in order to have commercial appeal to the target group.