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Results for "supervisors_tesim:"Tang, Tian (Mechanical Engineering)""
Shape memory polymers (SMPs) can be used in many critical applications, including biomedical and aerospace fields, due to their ability to recover their original/permanent shape from a deformed/temporary shape upon application of a stimulus. SMPs are subjected to bending in a large number of...
High aspect ratio microelectromechanical structures have been found, in the literature, to collapse due to capillary forces of liquids. In this dissertation, mathematical models are developed to study (i) the collapse of a microstructure represented by a double cantilevered beam (DCB) with a free...
Characterizing the Performance of a Single-layer Fabric System through a Heat and Mass Transfer ModelDownload
A mathematical model is developed to study the coupled heat and moisture transfer through a fabric system that consists of a single layer of fabric and an air gap. Properties of air and moisture are sensitive to temperature and hence are assumed to be functions of local temperature. Therefore the...
Charged Entities Interacting with Electronically Responsive Structures with Implications for the Modeling of Interactions between Carbon Nanotubes and DNADownload
Understanding interactions between charged entities with electronically responsive structures embedded in an electrolytic environment is important because of the diverse range of practical applications. This study was motivated by the technique where single stranded DNA was used to separate...
Constructing Continuous Strain and Stress Fields from Spatially Discrete Displacement Measurements in Soft MaterialsDownload
Recent studies show that particle tracking together with moving least-square (MLS) method is capable to interpolate displacement field and to determine strain and stress fields from discrete displacement measurements in soft materials. The goal of this study is to evaluate of the numerical...
Fracture Modeling in Elastomeric Materials: Relating the Macroscopic Response to Microscopic ProcessesDownload
Inelastic material behavior is known to be able to enhance the fracture toughness of elastomers. However, how to optimally exploit this toughening mechanism is still being investigated. In this thesis a series of continuum models are developed to describe such inelastic behaviors, with the...
Drop transfer from one solid surface to another through stretching liquid bridges between them is important for many industrial applications. Due to the different dominate forces, three possible regimes exist: Quasi-static Regime, where the transfer process is only dominated by surface forces;...
Recently there has been great research interest in small soft particles because of their significance in both biology and industry. The term ‘particle’ here is defined as a deformable object with size in the range of nano- to micrometers. Many experimental efforts have been spent on investigating...
Molecular Dynamics Simulations of Polyethylenimine Mediated Nucleic Acid Complexation with Implications for Non-viral Gene DeliveryDownload
Gene therapy is a promising therapeutic technique that involves delivering nucleic acids into cells. Polycations have evolved into a major category of gene carriers. Polyethylenimine (PEI) is one of the most effective polycationic carriers. Furthermore, modifying PEI with certain lipophilic...
Hybrids formed by biological entities and human-made nano-structures have been intensively studied in recent years due to their very interesting properties and applications. DNA-carbon nanotube (CNT) hybrid is one such material and the motivation of this PhD study. The interaction of DNA building...