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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Optimization of water usage, wastewater management, and associated energy usage in a meat packing plant /

Hansen, C. L. January 1980 (has links)
Thesis (Ph. D.)--Ohio State University, 1980. / Includes bibliographical references (leaves 130-134). Available online via OhioLINK's ETD Center.

Effects of heat processing on product quality of sous-vide broccoli packs

Vlok, Nicolaas Hugo January 1998 (has links)
Thesis (MTech (Food technology))--Cape Technikon, Cape Town,1998 / To establish the optimum pasteurisation procedure, the effects of sous-vide heat processing on the pH, ascorbic acid and sensory aspects of broccoli (Brassica oleracea var. Italica) were studied. Broccoli florets were blanched using steam and ammonia(NH3)-steam, chilled to <2°C in ice water at O°C, and vacuum packaged. Sous-vide processing proceeded immediately at pasteurisation temperatures 73°, 76°, 79°, 82° and 85°C to a p~ = 100. Directly afterwards, the pH of the processed sous-vide broccoli was measured and percentage L-ascorbic acid loss calculated, by comparing sous-vide broccoli with unprocessed controls from the same broccoli head. Objective colour measurements were made using CIELAB L*, a* and b* co-ordinates. Consumer acceptance was tested using paired preference analysis. The same analyses were repeated after storage at 2° - 4°C for 21 days. Suitable statistical analyses showed significantly higher (P<0.05) pH-values in the case of NHrsteam-blanched broccoli, with the result that the ascorbic acid retention of NH3-steam broccoli was significantly lower (P<0.05) than that of steam blanched broccoli. Higher pasteurisation temperatures, and resulting shorter heat processing times, ii showed a significant reduction (P<O.05) in ascorbic acid losses. NHa-steam blanched broccoli was significantly (P<O.05) greener after pasteurisation than steam-blanched broccoli. Steam blanched broccoli deteriorated further significantly (P<O.05) towards a more yellow colour during a 21 day storage period at 2° - 4°C. Sensory analysis showed a significant consumer preference (P<O.05) for the greener NHa-steam- blanched broccoli but showed a significant preference (P<O.05) for the texture of steam blanched broccoli. No significant (P>O.05) taste preference was detected for broccoli from either blanching method.

The effectiveness of training and written sanitation standard operating procedures on overall sanitation in a meat processing plant

Grossbier, Stephany. January 1998 (has links) (PDF)
Thesis--PlanB (M.S.)--University of Wisconsin--Stout, 1998. / Includes bibliographical references.

Field packing forces on crisphead lettuce

Wolf, Lyle Clark, 1941- January 1966 (has links)
No description available.

Quality reduction of crisphead lettuce from simulated packing loads

Hughes, Harold A. January 1966 (has links)
No description available.

Optimization of water usage, wastewater management, and associated energy usage in a meat packing plant /

Hansen, C. L. January 1980 (has links)
No description available.

Structural Characteristics and Applications of Hard-particle Packings via Event-driven Molecular Dynamics Simulations

January 2014 (has links)
abstract: In this dissertation, the results of our comprehensive computational studies of disordered jammed (i.e., mechanically stable) packings of hard particles are presented, including the family of superdisks in 2D and ellipsoids in 3D Euclidean space. Following a very brief introduction to the hard-particle systems, the event driven molecular dynamics (EDMD) employed to generate the packing ensembles will be discussed. A large number of 2D packing configurations of superdisks are subsequently analyzed, through which a relatively accurate theoretical scheme for packing-fraction prediction based on local particle contact configurations is proposed and validated via additional numerical simulations. Moreover, the studies on binary ellipsoid packing in 3D are briefly discussed and the effects of different geometrical parameters on the final packing fraction are analyzed. / Dissertation/Thesis / Masters Thesis Materials Science and Engineering 2014

On Discrete Hyperbox Packing

Li, Xiafeng 14 January 2010 (has links)
Bin packing is a very important and popular research area in the computer science field. Past work showed many good and real-world packing algorithms. How- ever, due to the complexity of the problem in multiple-dimensional bin packing, also called hyperbox packing, we need more practical packing algorithms for its real-world applications. In this dissertation, we extend 1D packing algorithms to hyperbox packing prob- lems via a general framework that takes two inputs of a 1D packing algorithm and an instance of hyperbox packing problem and outputs a hyperbox packing algorithm. The extension framework significantly enriches the family of hyperbox-packing algorithms, generates many framework-based algorithms, and simultaneously calls for the analysis for those algorithms. We also analyze the performance of a couple of framework-based algorithms from two perspectives of worst-case performance and average-case performance. In worst- case analysis, we use the worst-case performance ratio as our metric and analyze the relationship of the ratio of framework-based algorithms and that of the corresponding 1D algorithms. We also compare their worst-case performance against two baselines: strip optimal algorithms and optimal algorithms. In average-case analysis, we use expected waste as a metric, analyze the waste of optimal hyperbox packing algorithms, and estimate the asymptotic forms of the waste for framework-based algorithms.

A computational approach to conceptual 3D spatial design

Kewin, James January 2001 (has links)
No description available.

Physically-constrained packing problems

Zhang, Jixian 08 1900 (has links)
No description available.

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