Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"D-value"”.
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Fractal analysis of topography and reflectance surfaces
… comparing the calculated with the theoretical D values of the theoretical fractal models. The application of appropriate methods to self-similar or self-affine fractals is essential due to different theoretical assumptions of the methodologies. The ruler dimension is different from the spectral …
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Combinatorial effects of bovicin HC5 and epsilon-polylysine against Alicyclobacillus acidoterrestris in orange juice
… (pH 4). The results showed that the mean D-value without AMPs was 7.68 min at 95 oC. With the addition of ɛ-polylysine into the juice, no significant difference was observed (P > 0.05) while treatment with bovicin HC5 reduced the D-value (P < 0.05) compared to control. This effect was …
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The effect of heat shock, growth atmosphere, and recovery atmosphere on the survival of Escherichia coli 0157:H7 to heat
… cells resulted in an increase in the mean D value after a 55°C heat treatment by a factor of 2.1 over nonheat-shocked controls. Heat shock of anaerobically grown cells also resulted ina significant increase in mean D value over nonheat-shocked controls. Anaerobic growth itself resulted in an …
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Identification and characterization of a psychrotrophic Clostridium sp. isolated from spoiled pasteurized crabmeat
… to post processing contamination. Approximate D-values were determined for the heat tolerant organisms. A psychrotrophic Clostridium sp. was found in all cans tested from a Maryland processor, Processor B. This processor only had spoilage in machine picked meat pasteurized after hurricane Hugo. …
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The Shared Experiences Of Educators In Grades 7–12 Who Implement Lessons In Social–Emotional Learning Curriculum
… identify emotions, (c) safety and trust, and (d) value of relationships. Data collected also revealed subthemes: (a) the need for students to identify emotions through vocabulary, self-awareness, and coping skills; (b) build safety and trust in classrooms, and (c) the value of relationships in …
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Increase in heat resistance of <u>Listeria monocytogenes</u> Scott A by sublethal heat shock
… heat shock condition was 45°C for 20 min where D-values at 55°C increased 2.3 fold in non-selective agar and 1.6 fold in selective agar in comparison to non-heat shocked cells. However, cells heat shocked at 48°C for 10 min gave more consistent results; these cells were heated at 50, 55, 60, and …
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Use of Gamma Irradiation as an Intervention Treatment to Inactivate Escherichia coli O157:H7 in Freshly Extracted Apple Juice
… gamma irradiation at doses upto 1000 Gy. The D-value of the <em>E.coli </em>O157:H7 strain was 334 Gy indicating that irradiation at 1000 Gy would result in a 3-log reduction of this pathogen. Contaminated apples were also stored for 3 weeks at refrigerated temperature during which time …
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Attachment of Salmonella on cantaloupe and effect of electron beam irradiation on quality and safety of sliced cantaloupe
… at 0.7 kGy and 3.6 log cfu/g at 1.5 kGy. The D-value of S. Poona on irradiated sliced cantaloupe was found to be 0.211 kGy. Among the spoilage organisms, lactic acid bacteria and mold were reduced effectively by irradiation but there was no significant effect on reduction of yeasts. Our results …
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Linkage disequilibrium and haplotype block patterns in popcorn populations
… the biparental population. The lower average D' value in the breeding population reflects its recombination history. We observed low average r 2 values in the populations. There is an initially higher LD decrease for SNPs separated by 51- 100 kb (3 to 7% for D' and 28 to 66% for r 2 , on average) …
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An investigation of thin amorphous carbon-based sputtered coatings for MEMS and micro-engineering applications
… width analysis and correlation work with C KLL D value confirmed the errors. The use of XPS for Sp3/Sp2 was therefore limited to initial tentative estimations. Nanoindentation was shown to provide consistent hardness and reduced modulus results with depth (to < 7nm) when replicate data was …
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Characterization and encapsulation of probiotic bacteria using a Pea-protein Alginate matrix
… acidophilus was the most acid-tolerant strain (D-value 10.2 ± 0.8 min), and was able to survive for 30 min; whereas, the other tested probiotics underwent a rapid (within the first 5 min at pH 2.0) 4-5 log colony forming units (cfu)/mL loss in viability. All probiotics tested were able to survive …
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Modeling for thermal resistance of non-O157 shiga toxin producing Escherichia coli in ground beef
<p>Predictive models in microbiology are used for estimating the growth or survival of microorganism in a set of environmental conditions. A validated predictive model provides an alternative to extensive survival and shelf life studies. In this study, a predictive inactivation model for non-O157 …
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Development of amyloid beta binding bifunctional chelators for diagnosis of Alzheimer’s disease
… the octanol/PBS distribution coefficient (log D) values for prediction of blood-brain barrier (BBB) permeability. YW-13 shows the best amyloid staining but suffers from the low log D value of anionic 64Cu complex. Therefore, we adapted the compound design by replacing one carboxylate arm with a …
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Protein-Intercalated Bentonite for Bio-composites
… of composites and increased basal spacing (d-value) of bentonite. Transmission electron microscope (TEM) analysis confirmed the exfoliation of fillers for organically-modified bentonite. These observations, particularly at low filler dosage strongly suggest the formation of nanocomposites.
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Study mass transfer of Cd, Hg, As, DDT and chlordane through adsorption onto granular activated carbon
… taking 48 hours to be adsorbed. The [KLa]f value for the adsorption of Hg onto SIG was significant and the [KLa]d value for the adsorption of Hg onto SIG was higher onto SAG and BAG. The value of [KLa]f for SIG at 6% outflow was 0.6862 h-1, with values of [KLa]d at -0.4142 h-1 and [KLa]g at …
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Water use of mature pecan orchards under semi-arid conditions
… hypothesized that the method of adjusting Kc values for climate would not be transferable to hotter production areas where GDD exceeds 1500. Ibraimo (2018) [proposed that a better method could be to adjust Kc curve according to observed phenological stages and that the approach would work …