Index Catalog // ScholarsArchive@OSU

The effect of catalyst properties on the synthesis of carbon nanotubes by plasma enhanced chemical vapor deposition

Creator:: Cheemalapati, Surya Venkata Sekhar
Abstract:: A study of the effect of catalyst properties on the synthesis of carbon nanotubes (CNTs) is done in this thesis. Three different metal alloy catalysts, Fe/Ti, Ni/Ti, Co/Ti, have been studied. Various atomic concentrations and thicknesses were cosputter deposited on clean Si wafers using AJA Orion 4 RF Magnetron sputter...
Resource Type:: Masters Thesis
Full Text:: on the silicon oxide surface and the growth of CNTs from the particles formed; and (d) an enlarged

Biological insertion of nanostructured germanium and titanium oxides into diatom biosilica

Creator:: Jeffryes, Clayton S.
Abstract:: There is significant interest in titanium oxide and germanium-silicon oxide nanocomposites for optoelectronic, photocatalytic, and solar cell applications. The ability of the marine diatom Pinnularia sp. to uptake soluble metal oxides from cell culture medium, and incorporate them into the micro- and nano-structure of their amorphous silica cell walls, called...
Resource Type:: Dissertation
Full Text:: , (b) SEM image of single frustule, (c) TEM image of microstructure, (d) TEM image of the pore

Classifying the toxicity of pesticides to honey bees via support vector machines with random walk graph kernels

Creator:: Yang, Ping
Abstract:: Pesticides benefit agriculture by increasing crop yield, quality, and security. However, pesticides may inadvertently harm bees, which are valuable as pollinators. Thus, candidate pesticides in development pipelines must be assessed for toxicity to bees. Leveraging a data set of 382 molecules with toxicity labels from honey bee exposure experiments, we...
Resource Type:: Masters Thesis
Full Text:: 0.0001 1.0e-5 1.0e-6 L-RWGK MACCS FP ~d en sit y 0.0 0.5 1.0 hyperparam exploration via 3-folds

Life cycle assessment of algal biofuels

Creator:: Kirby, Bryan L.
Abstract:: This thesis consists of three studies to better understand the environmental sustainability potential for algal-based biofuels. Initially, a comparison of recent life cycle assessments (LCA) of theoretical full-scale algal biofuel facilities was developed. These studies include varying boundaries and scope, functional units, and technology maturity assumptions. The comparison converted results...
Resource Type:: Masters Thesis
Full Text:: . ABBREVIATIONS: * - WT. % LIPIDS, **W - WET LIPID EXTRACTION, ***D - DRY LIPID EXTRACTION AND N - NITROGEN

Natural Organic Matter Surface Coverage as a Predictor of Heteroaggregation between Nanoparticles and Colloids

Creator:: Oney, Dylan M.
Abstract:: Heteroaggregation of nanoparticles with naturally occurring colloids has been shown to be an important process in nanoparticle fate and transport in the aquatic environment. The advent of a functional assay to measure heteroaggregation attachment efficiencies has opened the door for further mechanistic studies. It is well known that natural organic...
Resource Type:: Masters Thesis
Full Text:: NaCl, 0.3 mg C/L SRNOM. 0 50 100 150 200 250 300 350 0 200 400 600 800 H y d ro d y n

Techno-economic analysis of algal lipid fuels

Creator:: Xiang, Xuwen
Abstract:: A techno-economic analysis (TEA) was performed to evaluate the technology, cost, and resource use for algal biofuel production based on today’s economics and technology. The basic goal of this study is to develop a model to calculate the mass and energy balances and costs to produce 10 million gal of...
Resource Type:: Masters Thesis
Full Text:: ). Microalgae Species Culture Systems Lipid Content (% dry weight) Biomass Productivity (g/m2/d

Problems of Shape and Information in Multiscale Modeling of Transport Phenomena

Creator:: Ostvar, Sassan
Abstract:: This work is a compilation of problems that deal with multiscale analysis of transport phenomena in environmental systems. A common feature among the problems studied here is the presence of non-negligible microscale structure in various forms. Each problem is approached from the perspective that a macroscopic observable encodes aspects of...
Resource Type:: Dissertation
Full Text:: D. Wood This work is a compilation of problems that deal with multiscale analysis of transport

Engineering an Ex-Vivo System to Study Transport Phenomena in the Human Intervertebral Disc

Creator:: Shalash, Ward
Abstract:: Back pain is the leading cause of disability worldwide, entailing a significant socioeconomic impact. A primary source of back pain can be attributed to intervertebral disc (IVD) degeneration allowing nerve ingrowth, facet joint arthritis, disc bulging, and osteophyte formations that press on nearby nerve roots or the spinal cord. While...
Resource Type:: Dissertation
Full Text:: glucose concentrations (mM) in AF (A-B) and NP (C-D) cell cultures.67 3.4 Cell senescence of AF and

Techno-economic and Life-cycle Analyses of Glucosamine and Lipid Production from Marine Diatom Cyclotella sp.

Creator:: Xiang, Xuwen
Abstract:: Currently the production of biofuel from algae is not economically competitive with petroleum fuel. However, co-production of high-value products may be able to justify the cost of large-scale algae cultivation. The basic goal of this study is to develop a techno-economic analysis (TEA) and Life-cycle assessment (LCA) for the production...
Resource Type:: Dissertation
Full Text:: ke t (t ho us an d m et ric to n) Year Growth rate: 8.0% 8 requires heavy

Nanotechnology for solar module applications : zinc oxide nanostructures and anti-reflective coating modeling, deposition, analysis, and model fitting

Creator:: Han, Katherine M.
Abstract:: To become a competitor for fossil fuels such as coal, solar installations will need to be produced and installed at a price equal to or below grid parity. This price can be approached by either reducing the overall system cost or increasing system efficiency. The focus of this paper is...
Resource Type:: Dissertation
Full Text:: SEM image indicated by dotted square in Figure 8B. (D-F) Cross-sectional STEM images of ZnO nano

ScholarsArchive@OSU

The effect of catalyst properties on the synthesis of carbon nanotubes by plasma enhanced chemical vapor deposition

Biological insertion of nanostructured germanium and titanium oxides into diatom biosilica

Classifying the toxicity of pesticides to honey bees via support vector machines with random walk graph kernels

Life cycle assessment of algal biofuels

Natural Organic Matter Surface Coverage as a Predictor of Heteroaggregation between Nanoparticles and Colloids

Techno-economic analysis of algal lipid fuels

Problems of Shape and Information in Multiscale Modeling of Transport Phenomena

Engineering an Ex-Vivo System to Study Transport Phenomena in the Human Intervertebral Disc

Techno-economic and Life-cycle Analyses of Glucosamine and Lipid Production from Marine Diatom Cyclotella sp.

Nanotechnology for solar module applications : zinc oxide nanostructures and anti-reflective coating modeling, deposition, analysis, and model fitting

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search