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 31 for “"polychromatic"”.
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Experimental evaluation of polychromatic neutron diffraction
… implements and analyzes a technique known as polychromatic neutron powder diffraction, which has the potential to be used by an instrument to make many simultaneous neutron diffraction measurements. In this experiment, powder diffraction patterns were measured with a diffractometer in …
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Inactivation mechanisms of adenovirus from exposure to polychromatic ultraviolet light irradiation
… used are monochromatic low-pressure (LP) and polychromatic medium-pressure (MP) UV lamps. MP UV light is found more effective at inactivating human adenovirus than LP UV light. While LP UV disinfection has been largely studied, MP UV inactivation has been less investigated and the mechanisms …
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An Effective Polychromatic X-ray Beam for Quantitative Analysis of Fossil Compositions
… In particular, a method for replacing a polychromatic X-ray spectrum with an effective set of monochromatic beams is explored. Using these methods, the depositional and diagenetic conditions are analyzed. A clear difference can be drawn between the sample locations, offering an …
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Development of a new actinometric method for polychromatic light irradiation. Application to photochromes, drugs and stilbenoids
… photochemical reactions under irradiation by polychromatic light for three chosen AB reaction systems. In the development of the above-mentioned methodologies, this research selects species based on their photochemical reaction mechanisms to study their photodegradation, starting from a simple …
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Development of a polychromatic flow cytometry panel for the evaluation of HIV-specific T cell responses
… the immune system are warranted. The advent of polychromatic flow cytometry has allowed for in depth analysis of T cell functions and phenotypes in HIV infection, including the measurement of T cells that can produce multiple immune molecules simultaneously. The aim of this study was to develop …
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Colour in Early Modern English Literature and Culture
… and a textual preoccupation. However, the polychromatic palette that surrounded English men and women, and the particoloured palette of early modern writers, has thus far received little scholarly attention. This thesis rethinks the culture of colour in England between c. 1580 and c. 1660 …
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Generation of sand bars under surface waves
… low and high beach reflection, monochromatic and polychromatic waves, and several sediment grain sizes. In particular, sediment sorting was demonstrated under standing waves when the seabed consisted of initially well mixed sand of two grain sizes.
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Generalizations of no k-equal spaces
… by a subset of $\N^m$. We call these spaces polychromatic configuration spaces. We find the homology groups and cohomology rings for two classes of polychromatic configuration spaces of $\R^d$. Next, we consider the relation between no $k$-equal spaces of $\R$ and $k$-trees of simplicial …
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The Multifaceted Implications of Light for Psychological Well-Being and Mood
… retinal ganglion cells (ipRGC) stimulation from polychromatic light in healthy individuals. The second and third studies focused on the indirect pathways, exploring predictors and underlying mechanisms of mood improvements by means of sleep and circadian re-alignment in the context of …
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Quantifying the stimuli of photorheological fluids
… photoresponsive fluids for monochromatic and polychromatic light sources. Derived from first principles, the model relates the irradiance of light source to the evolution of the concentration of a photoactive species within a sample. We show that the limiting time scale of the dynamics is the …
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The Influence of Environmental Conditions and Co-Occurring Parasites on Blood Physiology in Eastern Hellbenders (<i>Cryptobranchus alleganiensis</i>)
… hematocrit, hemoglobin, relative proportions of polychromatic red blood cells, and white blood cell differentials in a wild population of male Eastern Hellbender salamanders (<i>Cryptobranchus alleganiensis</i>) which remain with their nest for up to ~8 months and have frequent encounters with …
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Space-time imaging and interferometric microscopy
… I discuss applications of time-domain and polychromatic optical fields, which illustrate the benefits of the amalgamation of experimental optics and computational analysis.
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Analysis of multifrequency interferometry in a cylindrical plasma
… are found to play important roles and explain polychromatic differences in the electron densities and profiles. Calculations for the new model are compared to a thin beam model not accounting for refraction and experimental data from VASIMR.
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Reflections of Color and Light
… any moment the human eye is receiving a complex polychromatic reflection of its environment, and the human mind is perceiving many hundreds or thousands of colors. In architecture, light is often a primary consideration in a design, but color is rarely discussed. It makes its presence known, …
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Ebna1-Specific T Cell Responses During Persistent Rhesus Lcv infection and The Development of a Novel Therapeutic Prototype Vaccine for Ebv-Associated Diseases
… by intracellular cytokine staining (ICS) and polychromatic flow cytometry. We found that most naturally infected animals had CD4+ and/or CD8+ T cells against rhEBNA1 and rhBZLF1, an immediate-early lytic phase antigen of rhLCV. Peptide-specific CD8+ T cells showed a more activated effector …
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Residual restoration of DNA lesions in Deinococcus radiodurans mutants indicate presence of a bypass UV-repair process
… D. radiodurans' repair efficiency, especially polychromatic UV radiation enables the UV-sensitive class to repair the UV-induced lesions and retain their vitality. Hence, a further pathway must be present that can repair both photoproduct classes. The proposed core genes of the novel bypass …
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Extending The Lifetime of Optically Stimulated Dosimeters For Use In Output Checks At Iroc- Houston
… bleached. Four different monochromatic and one polychromatic light source was compared to the IROC light source to determine the impact that bleaching wavelength had on signal response. In addition, the OSLDs were evaluated for how the choice of bleaching light and accumulated dose affected …
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Functional Study of Hemogen Knockout Mouse Model
… Moreover, Hemgn was also found in basophilic, polychromatic and orthochromatic erythroblast cells and megakaryocytes, but absent in mature red blood cells and other differentiated blood cells. Hemgn knockout animals showed normal steady state and stress hematopoiesis and erythropoiesis. …
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The acute and phase-shifting effects of artificial bright light on human physiology, performance and symptoms of jet-lag
… Thereafter, participants were exposed to either polychromatic bright light with blue photons (2500 lux), blue photons removed (2,500 lux) or 0 lux for 30 min. Baseline data was altered for all variables in the two light conditions, suggesting an "expectancy effect" .. There was evidence that …
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Studies on neutron diffraction and X-ray radiography for material inspection
… in material science. Both monochromatic and polychromatic configurations are considered in order to maximize the net diffracted neutron flux at the detectors with reasonable resolution. On the other hand, considering X-ray radiography as a structure inspecting technique, analysis of dental …
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