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 25 for “"Tensile force"”.
-
Comparison of conjunctival pedicle flap to corneal adhesion achieved by Tisseel® fibrin glue, ethyl cyanoacrylate adhesive, ReSure® hydrogel sealant, and conventional suturing with 8-0 VICRYL® suture
… restoration. Objective. To evaluate the maximum tensile force a conjunctival pedicle flap is able to withstand with respect to different fixation methods, i.e., Tisseel® fibrin glue, ethyl cyanoacrylate adhesive, ReSure® hydrogel sealant, or 8-0 VICRYL suture. Animals Studied. Ex-vivo porcine …
-
Evaluation of implant restoration retention on various custom abutment materials and surfaces
… The purpose of this study was to evaluate the forces needed to vertically displace a cement-retained implant crown, using a provisional cement and five different combinations of abutment materials and surface characteristics. Material & Methods: A clinical master cast with an implant analog in …
-
Bond of glass fibre reinforced polymer bars in high strength concrete
… conducted to examine bond of glass fibre reinforced polymer (GFRP) bars with high concrete strength. The current research project aims to compare between bond measured from a pull-out test and a hinged beam test for GFRP bars embedded in high strength concrete. Different parameters influencing …
-
Analysis and Modeling of Snap Loads on Synthetic Fiber Ropes
… a snapping action occurs and produces a large tensile force which is known as a snap load. Energy is dissipated during this snap load, and it is proposed to use synthetic fiber ropes as a type of passive earthquake damper in order to take advantage of this phenomenon. This thesis is the second …
-
A quantitative and predictive model for mechanochemical kinetics and its experimental validation
The fact that the application of mechanical force to materials can change the reactivity of their constituent molecules (or ions) has been known for millennia, but the complexity of these multi-scale phenomena limited their partial explanation to the theoretical until the advances in …
-
FEM simulation of ultrasonic wave propagation in solid rods
… specimen and all the specimens are under zero tensile force. There are 3 rods (center wire) of different lengths used in this study. The DS345 arbitrary function generator, PICO sensors, and S9208 displacement transducer is used for measuring the results of the ultrasonic wave propagations. In …
-
Molecular analysis of kinetochore-microtubule attachment in budding yeast
… kinetochores act to couple microtubule force generation to chromosome movements. Microtubule associated proteins are also thought to play a key role in this process by regulating plus-end microtubule dynamics and tensile force generation. However, the actual molecular mechanism of force …
-
Exploring the cause of injury or death in grain entrapment, engulfment and extrication
… Field, Maier, & Stroshine, 2015) by testing forceful extrication attempts under a wider set of variables, including different types of grains (corn, popcorn, wheat, oats, soybeans, canola seeds and sunflower seeds), depths of entrapment, pull angles (15°, 30°, 45°, 60°, and 75°), limb …
-
Comparative Tensile Strengths of Preceramic and Postceramic Solder Connectors Using High-Palladium Alloy
Purpose: To evaluate the tensile strength properties of Rx Naturelle Plus and Option (high-palladium) alloys on soldered connectors under simulated preceramic and postceramic soldering conditions. Materials and methods: Eighty cylindrical castings were fabricated (40 using Rx Naturelle Plus alloy …
-
Collaborative system and multi robots based on pneumatic muscle actuator
… between the human and robot is suggested or the force shutdown to robot system is applied. These solutions might be useful for industrial applications, nonetheless it is not for medical and the application require the direct interaction between the human and machine. To overcome the rigidity …
-
Mechanotransduction by talin : a molecular dynamics study of force-induced recruitment of vinculin to a focal adhesion complex
… well established that cells can sense mechanical force, but the mechanisms by which force is transduced into a biochemical signal remain poorly understood. One example is the recruitment of vinculin to reinforce initial contacts between a cell and the extracellular matrix due to tensile force. …
-
Evaluation of the Tensile Bond Strength of Orthodontic Bracket Bases Using Glass Ionomer Cement as an Adhesive
… glass ionomer cements. This study compared the tensile bond strength of eight different orthodontic bracket base designs in vitro and assessed the amount of adhesive remaining on the bracket pad after debonding. Each bracket base design included in this study had unique characteristics …
-
Performance of Fouled Railroad Superstructure Subjected to Traversing Heavy Haul Trains
… program. The normalized maximum rail-tie tensile force was employed to analyze the uplift resistance of a CWR section at the cross-tie. Results indicate that the tie-load ratio may misrepresent the superstructure efficiency in fouled ballast beds. Alternatively, the range of influence of …
-
Methods of frequency tuning vibration based micro-generator
… tuning is realized by applying an axial tensile force to strain the cantilever structure of the generator. A tunable micro-generator with a tuning range from 67.6 Hz to 98Hz and a maximum output power of 156.6µW at a constant low vibration acceleration level of 0.59m·s<sup>-2</sup> was …
-
Effect of Compressive Force on Aeroelastic Stability of a Strut-Braced Wing
… that, at high positive load factors, a large tensile force in the strut leads to a considerable compressive axial force in the inner wing, resulting in a reduced bending stiffness and even buckling of the wing. Studying the influence of this compressive force on the structural response of SBW …
-
Blood Pressure Elevation - Impact on Cardiovascular Structure and Endogenous Fibrinolysis
… protein. Further, we explored the impact of the tensile force component of blood pressure on the regulation of fibrinolytic proteins by studying cultured endothelial cells in an in vitro biomechanical experimental model. Prolonged cyclic strain, mimicking the hypertensive state, was found to …
-
Seismic Performance of Bridge Column-Pile-Shaft Pin Connections for Application in Accelerated Bridge Construction
… columns to pile-shafts to reduce the overall force demand in the integral bridges, leading to smaller and more economical foundations. Additionally, prefabrication of structural elements facilitates accelerated bridge construction (ABC), which could improve the quality and economy of project …
-
Design and analysis of non-threaded drill pipe connector.
… Ring design needs to be able to withstand high tensile loads from operational use as well as possessing magnetic properties to enable actuation of the rings. Finite Element Analysis (FEA) was conducted using the ANSYS Workbench software package to identify the maximum stress and deformation …
-
Combined microwave - convection drying and textural characteristics of beef jerky
… of relative humidity and airflow rates in forced air thin layer drying on jerky processing were studied. Samples of beef jerky dried using a combined microwave-convection drier and thin layer drying unit were compared with samples dried in a smoke house. The results obtained showed that pH …
-
Mechanical and optical characterization of force induced chemical reactions in solid state linear polymers
… chemical, or electrical potential. By linking force-sensitive chemical species (mechanophores) into polymer backbones, mechanical force can drive chemical reactions. Mechanophores have been developed with potential as damage sensing, self-healing, and self-reinforcing materials. This research …
Page 1 of 2