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 3321 for “"Mechanical Properties"”.
-
Mechanical properties of arterial wall
… which factors trigger restenosis. However, few mechanical data are available on human arteries because of the difficulty of testing artery samples often obtained from autopsy while arteries are still considered "fresh". Various solutions mimicking the physiological environment have been used to …
-
Complex Mechanical Properties of Steel
… impossible to calculate all but the simplest of mechanical properties given a comprehensive description of the structure at all conceivable scales. Properties which are important but fall into this category are impact toughness, fatigue, creep and combinations of these phenomena. The work …
-
Mechanical properties of energetic composites
This thesis presents research into the mechanical response of particulate polymer composites, both energetic and inert, that contributes towards the wider understanding of deformation and damage mechanisms in Polymer Bonded Explosive (PBXs). Specifically, high and low strain-rate compression …
-
Dynamic Mechanical Properties of Resilin
… relaxation. While much is known about the static mechanical properties of resilin, it is most often used dynamically by insects. Unfortunately, the dynamic mechanical properties of resilin over the biologically relevant frequency range are unknown. Here, nearly pure samples of resilin were …
-
Mechanical Properties of Elastomeric Proteins
… this information to design materials for precise mechanical tasks? It is the aim of this dissertation to illuminate key aspects of the answer to these questions, while detailing the work that remains to be done. In this dissertation, particular emphasis is placed on the nanoscale properties of …
-
Unexpected mechanical properties of nucleic acids
Mechanical deformations of nucleic acids (NA) play a very important role in many biological life processes. The bending persistence length of DNA is of specific interest, because so much eukaryotic DNA that stores genetic information is tightly packed inside cell nuclei, even though DNA is …
-
Mechanical Properties of Polymer Modified Mortar
The mechanical properties of the polymer-modified mortar are markedly improved over conventional cement mortar. We utilized recycled ABS in powder form and a polymer latex emulsion, polymer percentage ranges from 0 to 25 percent by polymer/cement ratio were investigated. The mechanical properties …
-
Mechanical properties of boride based ceramics
<p>“This research focuses on the elevated mechanical properties of diboride based materials at room and elevated temperatures. These materials include a ZrB<sub>2</sub> ceramic, a ZrB<sub>2</sub>-WC-SiC ceramic, and a (Hf,Mo,Nb,Ta,W,Zr)B<sub>2</sub> high entropy boride (HEB). The room temperature …
-
Mechanical properties of F-actin network
… Although extensive measurements to estimate the mechanical properties of ABP/F-actin networks showed that they are nonlinear and viscoelastic, a full understanding of the origin of such fascinating behaviors is lacking. This thesis presents a multi-scale approach to identify the factors that …
-
Mechanical properties of bio-absorbable materials
… compliant polymers (1%, 50% and 100% of matrix properties) and with hydroxyapatite (HA). Unidirectional, continuous fiber plies, and multi-directional, random and quasi-random short-fiber composites were considered in our study. NDSANDS a concentric cylinder model computer software, was used to …
-
Mechanical Properties of Cellular Core Structures
… This reveals the necessity of understanding the mechanical behavior of the cellular core and the impact of that behavior on the overall structural behavior of the sandwich panel, and hence the final aerospace product. As the final aerospace product must go through multiple qualification tests to …
-
Single Fibrin Fiber Mechanical Properties and Lysis
… of a blood clot. Over the last few years the mechanical properties of fibrin fibers, such as their modulus, elasticity and extensibility, have been determined using samples formed from purified fibrinogen. In my work, presented in this dissertation, I initiated study on the more complex and …
-
Novel Rubber Nanocomposites with Adaptable Mechanical Properties
… this specific interaction further enhances the mechanical properties of these nanocomposites. In order to attach hydrogen bonding interacting moieties, the rubbers used in this study were chemically modified via several pathways. Instead of carbon black and conventional silica particles, the …
-
Low Stress Mechanical Properties of Hydroentangled Fabrics
… g. shirtings) are still limited. The low stress mechanical properties of fabrics (e. g. bending, extension, shear and recovery from extension) can be used as a measure of the suitability of fabrics to be used in clothing. In respect of the low stress mechanical properties of nonwoven fabrics, …
-
Investigation of mechanical properties of recycled polypropylene
… study included an rnvest~gatront o optirnlse the mechanical properties using this approach. The moulding process was used to produce products whose mechanical properties could be measured to provide an indication of the quality of the material at that stage. The relationship between the mouldlng …
-
Investigating the mechanical properties of yeast cells
… to have an understanding of the cell wall mechanical properties. This project involved a study of the wall mechanical properties of individual Baker’s yeast cells (Saccharomyces cerevisiae) using compression testing by micromanipulation. An analytical model has been developed to describe …
Page 1 of 167