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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 86 for “"Fluid pressure"”.
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The effects of fluid pressure changes on fractured rock elastic moduli and surface deformation
… deformation. These moduli may change with pressure and fracture density, but this effect is usually left out of models. This work shows effective elastic moduli of fluid-filled fractured rock through a self consistent method. The calculated effective elastic moduli for a penny-shaped crack …
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Advanced design and experimental validation of MRI contrast agents for fluid pressure mapping using microbubbles
This work is related to monitoring fluid pressure using Magnetic Resonance Imaging or MRI and includes numerical simulations and experimental MRI. The nature of this study is such that techniques other than MRI have been extensively used to assess the contrast agent for its physical behaviour. …
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Effects of Combined Bevacizumab and Paclitaxel On Tumor Interstitial Fluid Pressure In A Preclinical Breast Cancer Model
… Bevacizumab and Paclitaxel on Tumor Interstitial Fluid Pressure in a Preclinical Breast Cancer Model by Ricardo H. Alvarez Several mechanisms of cell resistance are often accountable for unsuccessful chemotherapy against cancer. Another reason, which has received increased attention, is the …
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Pore fluid pressure detection within the plate boundary fault interface of the Costa Rica convergent margin using AVO attributes
… seismic reflection data to detect elevated pore fluid content and pore fluid pressure along the Costa Rica convergent margin to address dewatering processes of subduction zone sediments. These data provide the highest quality 3D seismic data acquired to date along a convergent margin for detailed …
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The Roles of the Normal Mechanical Properties of Articular Cartilage in the Contact Mechanics of the Human Knee Joint: a Finite Element Approach
… behaviour of cartilage, few of them considered fluid pressure in an anatomically accurate knee joint model. Including the fluid phase as a cartilage constituent, this thesis investigated the mechanics of human knee joint. The main hypothesis of this thesis was that the depth-wise integrity of …
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Monitoring induced seismicity near the Wellington oil field, South-Central Kansas
… have suggested that injection-related pore fluid pressure increases are inducing the earthquakes. In this investigation, I examine earthquake occurrence in southern Kansas and northern Oklahoma and its relation to the change in pore pressure. The main source of data comes from the Wellington …
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Finite element analysis of cell subjected to compressive loading
… cell membrane and the presence of internal fluid pressure. The cell was considered as a pressurized, fluid filled bag where inflation of the cell membrane is resisted by the cytoskeletal elements. The behavior of the cell model with microtubules prone to buckling and stabilized by actin …
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Implications of Permeability Uncertainty During Three-phase CO2 Flow in a Basalt Fracture Network
… for geologic carbon sequestration due to fluid-rock reactions that mineralize injected CO₂ on relatively short time-scales. Flood basalts also possess a permeability structure favorable for injection, with alternating high-permeability (flow margin) and low-permeability (flow interior) …
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Poroviscoelastic Modeling of the Mechanical and Fluid Response of Liver Tissue in Unconfined Compression
… is burst injury, caused by rapidly increasing fluid pressure within this highly vascular organ. Exploration of this type of injury has shown fluid pressure to correlate well to liver injury severity in perfused whole-organ rapid compression testing. This study aimed to address one level of …
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Dynamics of vascular normalization during anti-angiogenic therapy : implications for combination therapy
… permeability to macromolecules and interstitial fluid pressure are reduced. By lowering interstitial fluid pressure while maintaining microvascular pressure, DC101 induces a hydrostatic pressure gradient across the vascular wall, which leads to enhanced penetration of macromolecules in tumors. …
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Effects of earthquakes on partially-filled water tanks
… the tank, a stochastic characterization of the fluid pressure and computation of the probability of failure of the tank.
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Brittle-viscous deformation cycles at the base of the seismogenic zone in the continental crust
… deformation and to characterise the fluid pathways at different scales of a brittle-viscous fault zone active at the base of the seismogenic crust. Object of analysis are samples from the sinistral strike-slip fault zone BFZ045 from Olkiluoto (SW Finland), located at the site of a …
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Physiological Parameters During Perfusion Fixation of the Rat Central Nervous System for Electron Microscopy
… electrocardiography, cerebrospinal fluid pressure, impedance of cerebral cortex, perfusion pressure, and flow rate of the perfusate.</p> <p>The first portion of this investigation dealt with the problem of asphyxiation of tissues during fixation. A substituted blood containing …
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A Clearer Picture of Musculoskeletal Disorders of the Knee and Thumb Through the Lens of Image-Based Finite Element Analysis
… to understand the contributions of intra-cyst fluid pressure to the growth of subchondral bone cysts (SBCs). The equine stifle joint provides a natural animal model for studying SBCs. Finite element models were used to examine three cyst sizes of approximately 0.03 cm3 (C1), 0.5 cm3 (C2), and 1 …
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The design of an apparatus to determine the film coefficient of water at high heat fluxes
… temperature, flow rate, heat input rate, and fluid pressure may be investigated with this apparatus. The range of variables is Heat flux: 2.5 x 10⁵ to 5 x 10⁵ B/hr ft² Inlet temperature: 100 to 300°F Mass velocity: 0.52 x 10⁶ to 1.7 x 10⁶ 1b/hr ft² Pressure: Up to 200 psia The basic scheme of …
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The Effect of Smectite Layer Thickness and Fabric Upon Salt Filtration at Room Temperature
… ranged from 0.5 to 2 centimeters, confining pressure was 5000 pounds per square inch, mean brine pressure was 2300 pounds per square inch, and the differential fluid pressure across the clay cake was 1000 pounds per square inch for random fabrics, 2000 pounds per square inch for …
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Compression behavior of smectitic vs. illitic mudrocks
Overpressure or fluid pressure in excess of hydrostatic pressure has been observed globally in many deep water sedimentary basins. One of the possible mechanisms for overpressure is the smectite-to-illite (S-I) transformation. During the transformation, the basal spacing of the smectite layer …
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Emergence of Delamination Fractures around Casing and Its Stability
… failures may lead to upward flow of drilling fluid or formation fluid, which may have significantly adverse consequences like loss of reserve and environmental hazards. In order to maintain wellbore integrity in the long term, it is expedient to examine the causes of failures around the …
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Geometry Reconstruction and Finite Element Modelling of Porcine Knee Joint
… was simulated with ABAQUS, which considered fluid pressure and flow in articular cartilages and menisci. The reaction predicted by the model generally agrees with the measurements from laboratory tests, which partially validates the modelling methodology.
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