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 20 of 772 for “"DSC"”.
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The origin of multiple DSC melting peaks of Fischer-Tropsch hard waxes
The differential scanning calorimetry (DSC) analyses of the Fischer-Tropsch (FT) hard waxes display multiple melting peaks, the origin of which is unknown. The phenomenon is sometimes referred to in the literature, but no attempt has been made to explain its cause. There are a few known causes of …
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Mobility and Stability Characterization of Model Food Systems Using NMR, DSC, and Conidia Germination Techniques
… a 1:1 sucrose/starch mixture. A suite of NMR and DSC techniques were used to fully characterize water and solid mobility and Tg of the food systems, respectively. All experiments were done in duplicated at 20$\sp\circ$C. Water content and a$\rm\sb{w}$, were unable to predict mold germination time. …
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Characterizing the chemistry of yellow-poplar surfaces exposed to different surface energy environments using DCA, DSC, and XPS
Surface energy changes in extracted and unextracted yellow-poplar upon exposure to aluminum, teflon, and heat/air surface treatments have been described using dynamic contact angle (DCA) and X-ray photoelectron spectroscopy (XPS) analysis. Results show that the surface molecular orientation of …
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Investigating the glassy to rubbery transition of polydextrose and corn flakes using automatic water vapor sorption instruments, DSC, and texture analysis
… to the differential scanning calorimetry (DSC) glass transition temperature (Tg) values. As predicted from theory, RHc values decreased as temperature increased. As plotted on the state diagram, the RHc values were similar to the DSC Tg values. At the same temperature, the RHc order for the …
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Low-frequency activity in the primate superior colliculus activates a head turning synergy: evidence using neck EMG recordings
… layers of the primate superior colliculus (dSC) encode desired eye-head gaze shifts. In addition, many dSC neurons emit earlier low-frequency activity. We hypothesized that low-frequency activity in dSC neurons contributes to priming and orienting the head in advance of eye-head gaze shifts. …
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Understanding Consumers' Digital Data Disclosure Decision-Making: A Focus on Data Sharing Cooperations, Perceived Risks and Low-Cognitive-Effort Processing
… data to such a data sharing cooperation (DSC). Despite privacy research has become highly important, peculiarities of such disclosure settings with a DSC between firms have been neglected until now. To address this gap is the first research objective in this thesis. Another underexplored …
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The mechanics of strain-induced crystallization in poly(ethylene terephthalate)
… using Differential Scanning Calorimetry (DSC). The nature and evolution of the crystallographic texture was studied using Wide Angle X-ray Diffraction (WAXD) measurements. The results of the mechanical tests, DSC and WAXD measurements indicated that straininduced crystallization does not …
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It could not have been otherwise: an articulation and defense of divine source compatibilism
… this dissertation, Divine Source Compatibilism (DSC). In chapter 1 and 2 I introduce both this study and the view of divine freedom under consideration, namely, DSC. Chapter 3 explores whether or not DSC seriously deviates from the claims of the Christian tradition regarding divine freedom. …
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Adaptation in multisensory neurons
… integration is the deep superior colliculus (DSC). Neurophysiological experiments have revealed many response properties of DSC neurons, such as cross-modal enhancement (CME) and sub-additive/additive/super-additive operational modes. CME occurs when the response of a multisensory neuron to …
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Studies on monolithic tandem structure for low cost and high efficiency dye-sensitized solar cells
… Absorbers such as the dye-sensitized solar cell (DSC or DSSC) are relatively simple and cheap to produce but are not currently being mass produced. By comparison the thin lm technology, Cu(In,Ga)Se2 or CIGS, is currently being manufactured for use commercially at a competitive price and …
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Thermal analysis of biochemical systems
… drug. Differential scanning calorimetry (DSC) is a common technique used to perform these formulation studies. In a classic DSC experiment, a protein is heated from 20-80°C and the heat absorbed while the protein unfolds is measured. Many researchers prefer the use of a DSC instrument …
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Characterization of Cure Kinetics and Physical Properties of a High Performance, Glass Fiber-Reinforced Epoxy Prepreg and a Novel Fluorine-Modified, Amine-Cured Commercial Epoxy.
… determined by differential scanning calorimetry (DSC) and by high speed DSC when the reaction rate is high. The changes in physical properties indicating increasing conversion are followed by shifts in glass transition temperature determined by DSC, temperature-modulated DSC (TMDSC), step scan DSC …
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Regrowth of Festuca hallii (Vasey Piper) and Stipa curtiseta [(A.S. Hitch.) Barkworth] following defoliation on a hummocky landscape in Central Saskatchewan
… Green standing crop (GSC), dead standing crop (DSC) and above ground net primary production (ANPP) were compared to an unmowed control after a single mowing in April, May, June, July, August, September, October or November on 5 landforms including north aspect-concave-slope, north …
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Assessing differential scanning calorimetry as a retrospective dosimetry method for the verification of uranium enrichment activities
… techniques differential scanning calorimetry (DSC) and fast scanning calorimetry (FSC). The DSC-PTFE system shows statistically significant sensitivity in the dose ranges expected. The FSC-PTFE system demonstrates reduced precision compared to the DSC-PTFE system, but it also shows potential …
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An investigation of the effect of surfactants on transdermal permeation.
… propan-2-ol; differential scanning calorimetry (DSC); Fourier transform infrared spectroscopy (FTIR); and thin layer chromatography (TLC); with the physical methods being used to elucidate structural changes in the stratum corneum. All of the surfactants, except for the polysorbates, caused …
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Crystallization behavior of nylon 6/6 and its blends with poly(vinyl pyrrolidone)
… using a differential scanning calorimeter (DSC). Samples were isothermally crystallized at various temperatures from the melt. Subsequent DSC analysis showed the presence of three distinct melting endotherms. The behavior of these three endotherms was studied as a function of the …
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Investigation of flow-limited field-injection electrostatic spraying for nanofabrication and direct-write patterning: Application to dye-sensitized solar cells
… the performance of dye-sensitized solar cells (DSCs), due to their promising efficiencies relative to the low cost of materials and manufacturing. Achieving high efficiency DSCs involves optimization of the absorption of light and transport of carriers in the active layers, which requires a …
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Inclusion in Context: Teachers Perspectives in Head Start Program
This study found that DSC's attitudes and beliefs impact on the ways in which teachers have inservice trainings, and how the programs' policy, legal enforcement, and societal demands influence each DSC's attitudes and beliefs about inclusion, construct their own strategies to cope with difficult …
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Dielectric spin coating characterization, modeling, and planarization using fill patterns for advanced packaging technologies
… plating (ECP) and dielectric spin-coating (DSC) processes. The semi-additive techniques are typically avoided as, without CMP, they suffer from thickness variations following the fabrication of each layer. As multiple layers are fabricated, these variations compound, and can result in a …
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