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Now showing items 21-30 of 111
Production of Cellulose Nanofibers using Midwest Biomass and their High-Performance Rubber Nanocomposites
(North Dakota State University, 2018)
Cellulose nanofibers (CNFs) are a sustainable and environmentally friendly material which can be used as a highly versatile reinforcing agent in polymer nanocomposites. This thesis presents a novel method to produce CNFs ...
An Experimental Study on a Density Driven Solar Water Heating System Using Supercritical CO2 as Working Fluid
(North Dakota State University, 2013)
For supercritical carbon dioxide, a small change in temperature or pressure can result in large change in density, especially close to its critical point. At this pseudocritical region, density decreases rapidly with ...
Influence of the Biaxiality Ratio on Multiaxial Fatigue of Metallic Materials
(North Dakota State University, 2014)
The ability to model and predict multiaxial fatigue life without being too aggressive or conservative is of great interest to engineers. The purpose of this study was to examine the influence of the biaxiality ratio (σ2/σ1) ...
Theoretical and Computational Studies of the Mechanical Strength and Fracture Toughness of Adhesively Bonded Joints and Polymer Nanoclay Composites
(North Dakota State University, 2019)
Increasing use of adhesively bonded joints (ABJs) and polymer nanoclay composites (PNCs) in modern vehicles and other industrial sectors has deeply shaped the design and manufacturing of advanced materials and structures ...
Experimental Investigation of Molten Salt Torrefaction and the Development of a Lab-Scale Torrefaction Methodology
(North Dakota State University, 2019)
A novel torrefaction methodology using molten salts as a means to reduce torrefaction temperatures was investigated. A lab-scale molten salt torrefaction methodology was developed to consistently torrify biomass; involving ...
Literature Review of the Aerodynamics of Flapping Flight in Micro Air Vehicle Applications
(North Dakota State University, 2014)
Biological flapping wing flyers achieve flight maneuverability and efficiency in low speed flight environments that has not been replicated by man-made flyers. Micro Air Vehicle (MAV) design goals are to develop flyers ...
Numerical Studies of Droplet Behavior in a Steady Non-Uniform Electric Field
(North Dakota State University, 2013)
An initially uncharged droplet suspended in another immiscible fluid under the influence
of a steady non-uniform electric field may experience deformation, migration and bursting.
This work numerically investigated the ...
Experimental and Theoretical Studies of Nanostructured Electrodes for Use in Dye-Sensitized Solar Cells
(North Dakota State University, 2017)
Among various photovoltaic technologies available in the emerging market, dye-sensitized solar cells (DSSCs) are deemed as an effective, competitive solution to the increasing demand for high-efficiency PV devices. To ...
Mechanical and Surface Properties of Technical and Single Flax Fiber in Micro and Nano Scale
(North Dakota State University, 2017)
The continued search for sustainable and eco-friendly materials led to the integration of bio-fibers as the reinforcement in composite materials. However, a wide variation in their mechanical properties poses a considerable ...
Aerosol-Based Ultrafine Material Deposition for Microelectronics
(North Dakota State University, 2012)
Aerosol-based direct-write refers to the additive process of printing CAD/CAM features from an apparatus which creates a liquid or solid aerosol beam. Direct-write technologies are poised to become useful tools in the ...