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.
Results
Showing 1 to 20 of 216 for “"Recalcitrant"”.
-
Recalcitrant arguments
1 PDF file (viii, 123 pages)
-
An investigation of recalcitrant organic compounds in leachates
Recalcitrant organic compounds remain a key challenge in landfill leachate management as they are resistant to microbial degradation and have potential to damage the water environment. Conventional leachate characterisation methods are time consuming and limited by their inability to provide …
-
On the Recalcitrant Nature of Sphagnum's Cell Wall
Although occupying just 3 % of Earth’s land surface, peatlands hold roughly a quarter of the planet’s soil organic carbon stock. More than half of this peat consists of undecomposed Sphagnum moss cell wall materials, prompting the proposal that this genus sequesters more carbon than any other …
-
Topical Therapies for the Management of Recalcitrant Chronic Rhinosinusitis
… topical therapies to improve the management of recalcitrant chronic rhinosinusitis (CRS). Chapter one of this thesis reviews the current literature pertaining to CRS including its aetiopathogenesis and the role of the sinonasal microbiome. It also outlines current management and factors leading …
-
A retrospective review of risk factors for recalcitrant peptic structures
… 53.4%) with PS, 27 (39.1%) were diagnosed with recalcitrant strictures. Most strictures were positioned distally (53; 76.8%) with an associated hiatus hernia in 52 (75.4%). While comorbidities were not associated with recalcitrancy, younger age was a risk factor (recalcitrant stricture group …
-
Biodegradation and Chemical Oxidation of Recalcitrant Organic Contaminants during Water Reuse
Water reuse of municipal wastewater effluent has become a potential solution for water shortages in arid regions that stem from the growth of human populations and effects of global climate change. However, municipal wastewater effluent contains many organic contaminants in trace quantities, which …
-
Advancing plant transformation and CRISPR/Cas editing: Strategies for recalcitrant maize
… transformation, particularly when dealing with recalcitrant plant species. Comprehending the factors that impact genetic transformation and subsequently optimizing these factors are crucial steps in enhancing the overall success rate and precision of attaining desired traits. To improve the …
-
Laccase-based Biocatalytic Systems for Recalcitrant Micro-Pollutants Degradation and Energy Generation
… production from unconventional fuels including recalcitrant pollutants and/or toxic organic was obtained in a sole-laccase based enzymatic fuel cell. The intramolecular electron-harnessing concept was also demonstrated with other enzymes, including the power generation during CO2 bioconversion …
-
Preliminary Experiments on Photo-Electro Catalytic Oxidation of Recalcitrant Organic Compounds Dissolved in Water
<p>This thesis presents the design and analysis of photo-electro catalytic oxidation technology for its potential use in water treatment applications. Doping titanium dioxide can effectively improve oxidative reactions. Using minute reactor design adjustments, such as electrolysis, the bases of …
-
Investigation of a Spinning Disc as a Thin Film Photocatalytic Reactor for the Degradation of Recalcitrant Wastewaters
Wastewater treatment is becoming increasingly important with the increase of pollution from municipal and industrial sources, driving the development of new processes for the treatment of the wide array of pollutants found in the environment. One such process is photocatalysis, an advanced …
-
Efficacy of Catalytic Ozonation Advanced Oxidation Processes Compared to Traditional Ozone-Based Advanced Oxidation Processes for Degradation of Recalcitrant Compounds
… their efficiency for degradation of ozone-recalcitrant compounds. With the world’s population increasing and water becoming a scarce resource, it is important to improve current water recycling methods. Recycling water will play a large role in accommodating the increasing demand, but it …
-
Effect of desiccation and storage on the seeds of two related species in the Amaryllidaceae from the western Cape Province
… physiological study undertaken on potentially recalcitrant seeds from the western Cape. Germination and dehydration behaviour of two related monocots Boophane flava Barker ex Snijman and Amaryllis belladonna L. (Amaryllidaceae) were studied to determine whether these seeds are indeed …
-
Oxidative stress and seed survival
… seeds of <i>Carica papaya</i> L. (Papaya) and recalcitrant (desiccation intolerant) seeds of <i>Aesculus hippocastanum</i> L. (Horse chestnut), but also in other species covering a range of desiccation tolerances, with a view to determining the role of oxidative stress as a diagnostic marker …
-
SYNTHESIS, CHARACTERIZATION OF 3D GRAPHENE-BASED MACROASSEMBLIES AND THEIR ENVIRONMENTAL REMEDIATION APPLICATIONS
… of as-synthesized photocatalysts using a model recalcitrant organic contaminant under visible light irradiation. Additionally, insights into the underlying mechanism behind the photocatalytic degradation of recalcitrant organic pollutants by 3D GMAs are provided.
-
Evaluation of the degradation of per- and polyfluoroalkyl substances (PFAS) using UV-activated silica-based granular media (UV/SGM)
… industrial use, and consumer use. PFAS are recalcitrant, persistent, and bioaccumulative contaminants of concern which are present in many solid and liquid sources. PFAS have been detected in surface water, groundwater, drinking water, wastewaster, landfill leachate, soils, sediments, and …
-
The relationship between S. aureus biofilm properties, inflammation, and disease severity in chronic rhinosinusitis
… mucosal biofilms are associated with severe recalcitrant CRS. However, S. aureus colonisation of the nose and paranasal sinus mucosa is also frequent in the absence of mucosal inflammation. This questions the relevance of S. aureus biofilms in CRS etiopathogenesis. This research aimed to …
-
Ecological restoration of lead/zinc/copper mine tailings: Phytomanagement and amendment strategies to enhance substrate functionality and biomass production
… crops growth only with biosolids treatments. Recalcitrant carbon amendments (biochar and humus) showed notable impact only on tailings physichochemical and hydraulic properties. Nevertheless, biosolids may not support sustained vegetation due to their nutrient lability and rapid decomposition. …
-
Pengaruh konsentrasi dan lama perendaman ekstrak bawang merah (Allium cepa L.) terhadap viabilitas benih kakao (Theobroma cacao L.)
… (Theobroma cacao L.). ENGLISH: Cocoa seed is recalcitrant seed,it is seed that is not resistant with high temperature or drained, sensitive to temperature and low humidity. Difficulty and problem are to handle recalcitrant seed itself in the cultivation it. There have been many attempts were …
-
Comparison of Two Advanced Oxidation Processes for Their Production of Hydroxyl Radicals and Evaluation of a UV/Ozone AOP at Varying UV Fluence for Treating Diclofenac
… Water reuse runs the risk of reintroducing recalcitrant compounds that can accumulate in our bodies and environment. Advanced treatment methods that degrade these compounds are vital to protect our health and the health of the environment while providing necessary water resources. Advanced …
-
Mechanistic understanding of microbial desulfurization
… biocatalysts to desulfurize compounds that are recalcitrant to the currently employed hydrodesulfurization (HDS) technology. Two of the major obstacles to commercialization of BDS are mass transport limitations and the inability to maintain biocatalyst activity for long periods of time. In this …
Page 1 of 11