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 175 for “"Renewable resources"”.
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Resource adequacy in grids with integrated renewable resources
… itself in the growth of grid-integrated renewable resources (RRs) to cost-effectively reduce greenhouse gas emissions and alleviate each nation’s dependence on fuel imports. However, as the penetrations of RRs deepen into the electric power grids around the world, their impacts on the …
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SUSTAINABLE PRODUCTION AND PHYSICO-CHEMICAL CHARACTERIZATION OF BIOSURFACTANTS FROM RENEWABLE RESOURCES
… the components of SFAEs can derive from natural resources, thus allowing the final product to be labeled as natural and bio-based as well. These features make them extremely promising for industrial applications as emulsifiers in the cosmetic and food sectors. Some SFAEs are currently produced at …
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Electricity market integration of stochastic renewable resources : efficiency and risk tradeoffs
Electricity generation from renewable sources is growing rapidly, but the variability and uncertainty of renewable resources like wind and solar energy can increase the costs of supplying reliable electricity. Competitive markets for wholesale electricity are widely used in the United States, but …
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Fundamental properties and potential applications of two surfactant groups produced from renewable resources
… surfactants today places emphasis on the use of renewable raw materials and alternatives to fossil synthetic building blocks. Two novel product classes were available to us for physicochemical investigation; the first one was synthesized by Covestro by catalytic copolymerization of ethylene oxide …
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Spatial structure and informational asymmetry in the economics of multiple stock renewable resources
The open-access inefficiencies of renewable resources are heightened, and their regulation complicated, by heterogeneous stock composition, non-uniform spatial distribution, and informational asymmetries between regulators and those involved in resource extraction. These issues continue to provide …
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Incremental Quantities Based Permissive Overreaching Transfer Trip Scheme for Protecting Inverter-Based Renewable Resources
… evolves, with the increase of inverter-based resources (IBRs) such as solar photovoltaics and wind turbines, providing sustainable and clean energy sources. The shift towards IBRs mitigates climate change, creating considerable challenges to traditional power system protection due to their low …
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On Sustainable Use of Renewable Resources in Protected Areas as an Instrument of Biodiversity Conservation : A Bioeconomic Analysis
The objective of this dissertation is to provide a theoretical framework for answering the question, whether and under which biological and socio-economic conditions the sustainable use of wild species in or around protected areas is an adequate strategy for biodiversity conservation. To do this, …
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Relationship of moulding pressure and weigh of granulate in improving the mechanical and characteristics of biopolymer from renewable resources
Waste cooking oils are problematic disposal especially in the developed countries. Options for disposing of waste cooking oil are limited. Pouring waste cooking oil down to the drain or sewers leads to clog and odour as well as damage wastewater leading to problems for humanlife. Thus, in this …
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Investigation of interfacial bonding in banana fiber-reinforced composites : ascribing global economic value to unique renewable resources in developing countries.
Natural fibers have increased in popularity in the polymer composite industry, due to the steady rise of consumer pressure for biodegradable and environmentally-friendly products. However, the organic nature of these natural fibers causes poor interfacial bonding with the majority of thermoplastic …
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Power system balancing with high renewable penetration : the potential of demand response
… stabilize the electrical grid when intermittent renewable resources are present. The WILMAR stochastic unit commitment model was used to represent a version of the Danish electricity and heat system with an enhanced level of wind generation. The study found that demand response reduced the …
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Design and development of a communication-assisted microgrid protection system
… a fast pace of technological advances in the renewable energy industry. Such developments in technology and the move towards cleaner sources of energy have made renewable resources based Distributed Generators (DGs) more desirable.
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Connecting the City: A Vertical Farm for Baltimore's Food Desert
… for several factors: site accessibility, renewable resources, solar exposure, and connecting the community. These factors serve as the basis in which to build a hybrid prototype that is able to expose people to the process of food production through a combination of traditional outdoor …
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Decentralized frequency control of power systems with deep penetration of wind-based generation
… of the highly variable and uncertain renewable resources into the power grid is calling for more control and regulation of the power system dynamics. In particular, the automatic generation control, which is responsible for maintaining the nominal system frequency and the scheduled …
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The role of hydroelectric generation in electric power systems with large scale wind generation
… generation of electricity from policy-mandated renewable resources, such as wind and solar, has led to increased scrutiny of the public policies that promote their growth and the regulatory system that maintains operation of a reliable and economically efficient power system. Anecdotal evidence …
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State ownership, petroleum revenue, and the enduring legacy of authoritarianism in Angola
… refers to the adverse effects of abundant non-renewable resources on a country's socio-economic and political outcomes. In addition to these findings of an adverse impact of non-renewable resources, this study argues that the type of resource ownership matters. Specifically, state ownership …
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Type III Polyketide Synthases: Discovery, Characterization, and Engineering
… less environmentally damaging and incorporate renewable resources. There exists potential to replace current chemical syntheses of natural product or natural product-inspired pharmaceuticals with biological syntheses using enzymes. Polyketide biosynthesis is a particularly attractive target, as …
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Predicting the renewable energy portfolio for the southern half of the United States through 2050 by matching energy sources to regional needs
… are in need of transformation due to limited resources and carbon dioxide emissions. Energy efficiency improvements and renewable energy should play a leading role in the America's energy future. Energy and environmental organizations believe that renewable energy and energy efficiency can …
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