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 29 for “"decay kinetics"”.
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Shedding Light on Decay Kinetics of Critical Wastewater Bacteria with Molecular Tools
Decay kinetics of bacteria in biological wastewater treatment systems are vital to efficient design and operation of treatment plants. Of special concern are decay characteristics of fecal indicator organisms, which can aid design of wastewater treatment processes to eliminate fecal pathogens. This …
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Microenvironments, Binding Interactions, and Photophysics of Polyelectrolyte-Bound Tris-(2,2'-Bipyridine)ruthenium(ii)
… photophysical behavior and nonexponential decay kinetics of tris-(2,2$\sp\prime$-bipyridine)ruthenium(II) (Ru(bpy)$\sb3\sp{2+}$) upon immobilization in "organized" or inhomogeneous media. To gain a fundamental understanding of these factors and mechanisms it was necessary to characterize …
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In Situ High-Temperature Scanning Tunneling Microscopy Studies of Early Stage Growth Kinetics During Titanium Nitride Epitaxy
… and temperature-dependent 2D island coarsening/decay kinetics, obtain 2D equilibrium island shapes, and follow temporal fluctuations of island shapes on both TiN(001) and (111) surfaces. I have developed a combination of experimental and theoretical techniques to analyze the surface dynamics …
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Studies of Radiation Effects in Three High Polymers
… made at later times to determine the radical decay rates. The radical decay rates were highly varied and did not conform to first-order or second-order decay kinetics, due to the simultaneous presence of several different radical species. due to irradiation were observed. The radical decay …
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Excitation evolution and self-regulation ability of photosynthetic light-harvesting systems /
… that the multi-exponential fluorescence decay kinetics, observed in various photosynthetic systems is just a manifestation of the fluctuating properties of the light-harvesting antenna and its proteins. Analysis of the time-resolved temperature-dependent fluorescence spectra of LHCII …
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Sužadinimo evoliucija ir savireguliacijos geba fotosintetinėse šviesą surenkančiose sistemose /
… that the multi-exponential fluorescence decay kinetics, observed in various photosynthetic systems is just a manifestation of the fluctuating properties of the light-harvesting antenna and its proteins. Analysis of the time-resolved temperature-dependent fluorescence spectra of LHCII …
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Kinetics of electron transfer and binding of inhibitors in the two-electron gate of chloroplasts
… There are three studies involved: (1) kinetics of an electron transfer reaction between the primary plastoquinone acceptor, Q$\sb{\rm A}$, and Q$\sb{\rm B}$, associated with binding and release of a plastoquinone in the dark as well as following an actinic flash measured from the …
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Izovalentiškai legiruotų cinko selenido scintiliacinių kristalų priemaišinės liuminescencijos tyrimai /
… is evaluated. A numerical simulation of the PL decay kinetics for donor-acceptor pair recombination model is performed. The influence of co-doping of the ZnSe scintillation crystals by rare earth elements on their afterglow and other luminescence characteristics was also under study. The key …
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Izovalentiškai legiruotų cinko selenido scintiliacinių kristalų priemaišinės liuminescencijos tyrimai /
… is evaluated. A numerical simulation of the PL decay kinetics for donor-acceptor pair recombination model is performed. The influence of co-doping of the ZnSe scintillation crystals by rare earth elements on their afterglow and other luminescence characteristics was also under study. The key …
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Heterogeneity of photosystem II as it occurs in domain specific regions of the thylakoid membrane of spinach (spinacia oleracia L.)
… PSII antenna and the fluorescence induction kinetics were measured and used to determine the relative contributions of PSlla and PSII~ to each fraction. Picosecond chlorophyll fluorescence decay kinetics were collected for each fraction to characterize and gain insight into excitation energy …
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Modeling and Ion Mapping of Intracellular Calcium Distribution in Molluscan Neural Somata
… calcium current I(,Ca) in molluscan neurons: (i) Decay kinetics of I(,Ca) during a voltage clamp depolarization period; (ii) I(,Ca)-Voltage relation; (iii) I(,Ca) as a function of intracellular calcium ion concentration; (iv) I(,Ca) as a function of extracellular calcium ion concentration. To …
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On The Nature Of Excited States In Ruthenium Complexes: Towards Renewable Energy
… increases while the value of the non-radiative decay (kNRD) should decrease. Given this relationship in the decay kinetics, the radiative rate constant can be an important factor in determining the lifetimes of high energy photosensitizers. Additionally, the formalisms used in discussions are …
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Studies on Cellular Nutrient Responses and Protein Degradation
… as it does not follow simple exponential decay kinetics. Pharmacological inhibition of different protein degradation pathways showed that autophagy and the calpain system of non-lysosomal cysteine proteases, but not the proteasome, can promote WNK1 degradation. Inhibition of the protein …
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Functional studies on the extrinsic proteins of Photosystem II
… PsbO-1 protein. Photosystem II closure kinetics demonstrated that the defective double reduction of QB and the delayed exchange of QBH2 with the plastoquinone pool in the psbo1 mutant were effectively restored to the wild type levels by the His6-tagged PsbO-1 protein. Flash fluorescence …
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Solution photochemistry of derivatives of Michler's Ketone
… with quantum yields of the order of 0.001 and decay times shorter than 100 psec. At 77 K both fluorescence and phosphorescence are observed. The phosphorescence spectra usually exhibited a shoulder to the red of the emission maximum, although a second peak is occasionally observed. In …
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Endogenous neurosteroid actions at GABAA receptors during neuronal development
… by relatively large amplitude and fast decaying mIPSCs. A large tonic conductance in WT VB neurones was inhibited following application of the competitive GABAAR antagonist bicuculline (30 µM). Deletion of the a4 subunit (a40/0) revealed alteration to both synaptic and tonic inhibition. …
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Insights into the radiation Chemistry of FLASH Radiation Therapy
… s post-irradiation. Analytical correction for decay kinetics was applied to estimate initial •OH and •H yields.</p> <p><strong>Results:</strong> The BC showed excellent linearity and stable performance across beam parameters, supporting its use as a time-resolved UHDR monitor. Alanine dosimetry …
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Solute effects on the production and decay of primary species in the flash photolysis of indole
Maximum production rates ofs and decay kinetics for the hydrated electron, the indolyl neutral radical and the indole triplet state have been obtained in the microsecond, broadband (X > 260 nm) flash photolysis of helium-saturated, neutral aqueous solutions of indole, in the absence and in the …
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Investigation of Copper Pitting Propensity Using Bench and Field Scale Testing
… approaches including ECorr rise, chlorine decay kinetics, and surface analyses, a novel method was attempted to develop "pitting currents" between copper samples exposed to differential flow. This method allowed pitting current, potential, and resistance between "pits" and sections of …
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ACQUIRED ALTERATIONS IN THALAMIC T-TYPE CALCIUM CHANNELS IN MODELS OF NEURONAL HYPEREXCITABILITY
… overall T-type Ca2+ current, including longer decay kinetics and depolarizing shifts in the voltage-dependent properties, thus leading to a greater tendency for RE neurons to participate in burst activity. These results suggest that changes in RE burst activity are due to alterations in T-type …
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