Index Catalog // ScholarsArchive@OSU

Applying Multi-Objective Evaluation to Automated Assembly Planning in Early CAD Design Stage

Creator:: Huang, Weifeng
Abstract:: Successfully predicting an accurate estimated cost is important in the assembly planning process. When designing an assembly plan, an accurate estimation ensures that the proposed plan can be achieved within the predetermined budget. However, achieving an accurate prediction is a challenge since it requires professional judgment, which is dependent upon...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Weifeng Huang for

Heat transport at interface in the metal-organic-frameworks MOF-5

Creator:: Huang, Wenxi
Abstract:: The metal-organic–framework MOF-5 is used as an adsorbent in advanced systems for vehicular hydrogen storage that are currently under development. Presently, these systems are limited by poor thermal conductivity of the adsorption bed, and thus our research addresses how the interfaces between grains of MOF-5 can be engineered to improve...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Wenxi Huang for the degree of Master

Automated Synthesis of Planar Mechanisms with Revolute, Prismatic and Pin-In-Slot Joints

Creator:: Huang, Weifeng
Abstract:: The intent of this research is to explore the entire design space of mechanism topologies by using a graph grammar synthesis approach. A new graph representation of planer mechanism has been developed to represent the planar mechanism with revolute (R), prismatic (P), and pin-in-slot (RP) joints. Following Gruebler's equation, the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Weifeng Huang for the degree of Master of Science in Mechanical

Experimental Investigations of the Unsteady Aerodynamics of Oscillating Airfoils Operating in the Energy Harvesting Regime

Creator:: Siala, Firas F.
Abstract:: The rising global trend to reduce dependence on fossil fuels has provided significant motivation toward the development of alternative energy conversion methods and new technologies to improve their efficiency. Recently, oscillating energy harvesters have shown promise as highly efficient and scalable turbines, which can be implemented in areas where traditional...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Firas F. Siala for the

Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

Creator:: Mansergh, Ryan H.
Abstract:: Oxo-hydroxo Group 5 metal clusters are an untapped resource to study and advance aqueous solution processing of metal oxide thin films. The tetramethylammonium (TMA) hexatantalate salt (TMA6[H2Ta6O19]) yields dense Ta2O5 films (~95% of the bulk ß-Ta2O5 density) with atomically smooth surfaces (<4 Å root mean square surface roughness). This same...
Resource Type:: Dissertation
Full Text:: Ha-Yeon Cheong, David Xiulei Ji, May Nyman, Prasad Tadepalli, and John F. Wager, whose diverse

Co-doped Barium Titanate Materials with High Dielectric Constants for Next Generation MLCC Dielectrics

Creator:: Grove, Kyle M.
Abstract:: New high-K dielectric materials are critically needed as chip real-estate becomes more and more of a premium in modern electronics designs. One of the most common devices used in electronics are multilayer ceramic capacitors (MLCCs) which are subject to severe volumetric constraints. One effective means to decrease the size of...
Resource Type:: Dissertation
Full Text:: field to point F. Finally, as the electric field is again reduced towards zero the material undergoes

The effect of feedstock composition on defect evolution in powder injection molded ceramic microarrays using simulations and experiments

Creator:: Laddha, Sachin
Abstract:: Micro Powder injection molding (μPIM) is a cost-effective technique for producing small, complex, precision parts in high volumes from ceramic and metal nanoparticles. This study focuses on research conducted on fabrication of Micro Ceramic Arrays (MCAs) parts using μPIM. MCAs are widely used as the major components and design features...
Resource Type:: Masters Thesis
Full Text:: systems (Catamold AO-F, BASF) for µPIM is reported. It is found that the Standard Mix system has

Thin Films via Chemical Solution Deposition Synthesis from the (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ Ternary System

Creator:: Mendez, Jose Eduardo
Abstract:: The ternary system (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ (BNT-BKT-BMgT) was explored along the [75-(x 2) ]Bi₀.₅Na₀.₅TiO₃ - [25-(x 2)]Bi₀.₅K₀.₅TiO₃ - [x]Bi(Mg₀.₅Ti₀.₅)O₃ composition line. Thin films were fabricated using chelated mixing route solutions spin cast onto platinized silicon substrates. Processing parameters such as: excess cation molar%, solution molality, and crystallization temperatures, for composition where x=0,...
Resource Type:: Masters Thesis
Full Text:: properties over the composition range for d33,f ∗ and Smax, respectively. The ferroelectric properties

Heat Treatment Effects on the Mechanical Properties and Microstructure of CPM-M4 Tool Steel

Creator:: Fast, Cody P.
Abstract:: Variations in heat treatments have significant effects on the microstructure of tool steels. For CPM-M4 tool steel, the changes in microstructure and mechanical properties were observed based off of variations in temperature. Five heat treatments with constant exposure time and variable austenitizing and tempering temperatures were performed on samples of...
Resource Type:: Masters Thesis
Full Text:: the data, a maximum hardness was achieved for samples with an austenization temperature of 2200°F

Graphene Biotransistors, an Exploration of Neurosensing and Biofilm-sensing Applications

Creator:: Brown, Morgan A.
Abstract:: Atomically-thin graphene sheets have unprecedented characteristics for biosensing applications. These characteristics include mechanical flexibility and strength, optical transparency, electrical sensitivity and biocompatibility. The primary theme of this dissertation is the characterization and application of graphene field-effect transistors (FETs) in biologically-relevant physiological environments.Understanding the interface that forms between an electrolyte and...
Resource Type:: Dissertation
Full Text:: , CQ, and CEDL. Based on this investigation, we find a CEDL of ~ 0.04 F/m2 for biologically relevant

ScholarsArchive@OSU

Applying Multi-Objective Evaluation to Automated Assembly Planning in Early CAD Design Stage

Heat transport at interface in the metal-organic-frameworks MOF-5

Automated Synthesis of Planar Mechanisms with Revolute, Prismatic and Pin-In-Slot Joints

Experimental Investigations of the Unsteady Aerodynamics of Oscillating Airfoils Operating in the Energy Harvesting Regime

Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

Co-doped Barium Titanate Materials with High Dielectric Constants for Next Generation MLCC Dielectrics

The effect of feedstock composition on defect evolution in powder injection molded ceramic microarrays using simulations and experiments

Thin Films via Chemical Solution Deposition Synthesis from the (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ Ternary System

Heat Treatment Effects on the Mechanical Properties and Microstructure of CPM-M4 Tool Steel

Graphene Biotransistors, an Exploration of Neurosensing and Biofilm-sensing Applications

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