A5043244241- Ultrasound and Hyperthermia Applications
- Ultrasound Imaging and Elastography
- Photoacoustic and Ultrasonic Imaging
- Magnesium Alloys: Properties and Applications
- Optical Imaging and Spectroscopy Techniques
- Corrosion Behavior and Inhibition
- Titanium Alloys Microstructure and Properties
- Caching and Content Delivery
- Advanced Control Systems Design
- Opportunistic and Delay-Tolerant Networks
- Bone fractures and treatments
- Pesticide and Herbicide Environmental Studies
- Mobile Ad Hoc Networks
- Adaptive Control of Nonlinear Systems
- Magnetic Bearings and Levitation Dynamics
- Toxic Organic Pollutants Impact
- Hydrogen Storage and Materials
- Ultrasound and Cavitation Phenomena
- Medical Education and Admissions
- Orthopaedic implants and arthroplasty
- Microbial bioremediation and biosurfactants
- Angiogenesis and VEGF in Cancer
- Speech and Audio Processing
University of Canterbury
2021-2024
North Carolina State University
2016-2024
National Institute of Technology Delhi
2021
North Central State College
2017
This research paper introduces a novel mathematical model that integrates fractional calculus with topological data analysis (TDA) for image segmentation. Fractional calculus, which extends the concept of derivatives and integrals to arbitrary orders, effectively addresses non-local hereditary properties images, capturing textures patterns across various scales complexities. TDA, utilizing robust tools identifying shape connectivity features, complements this by intricate characteristics...
Poly(N-isopropylacrylamide) (pNIPAm) microgels (microgels) are colloidal particles that have been used extensively for biomedical applications. Typically, these synthesized in the presence of an exogenous cross-linker, such as N,N′-methylenebis(acrylamide) (BIS); however, recent studies demonstrated pNIPAm can be absence resulting formation ultralow cross-linked (ULC) particles, which highly deformable. Microgel deformability has linked certain cases to enhanced bioactivity when ULC creation...
Ultrasound contrast agents (UCA), such as microbubbles, enhance the scattering properties of blood, which is otherwise hypoechoic. The multiple interactions acoustic field with UCA are poorly understood due to complexity theories and nonlinear microbubble response. majority bubble models describe behavior single, isolated microbubbles suspended in infinite medium. Multiple independent approximation can approximate phase velocity attenuation for low scatterer volume fractions. However, all...
Metallic bioresorbable orthopaedic implants based on magnesium, iron and zinc-based alloys that provide rigid internal fixation without foreign-body complications associated with permanent have great potential as next-generation devices. Magnesium (Mg) exhibit excellent biocompatibility. However, the mechanical performance of such for applications is contingent limiting rate corrosion in vivo throughout bone healing process. Additionally, surgical procedure implantation devices may impart...
Abstract Correctly torquing bone screws is important to achieve good patient outcomes. An automated system has been previously proposed that may allow more objective of screws. Here the tested vs. a static torque limit in pig bone. 5 were first inserted until stripping calibrate dynamic and limits. Then 6 limited 80% mean torque. 7 using model-predicted The pull-out strength insertions compared no statistically significant difference was found. Future work should consider at larger different...
We propose a method to quantify the vascular density in networks using contrast-enhanced multiple scattering. measured diffusion constant D and transport mean free path L* from time evolution of incoherent intensity rat model cancer. An 8 MHz linear transducer array was used record backscattered signals subcutaneous fibrosarcoma tumors control tissue. The coherent contributions were separated, growth rate contribution measured, giving L*, knowing effective speed sound. By translating along...
Angiogenesis is the process of growth capillary blood vessels from existing vessels. It dysregulated in many diseases, including cancer. Characterization microvasculature vivo terms micro-architectural features such as density, anisotropy and tortuosity could enhance specificity ultrasound cancer diagnosis. A method based on random matrix theory to distinguish between angiogenic a tumor healthy tissue using multiple scattering microbubbles injected into vasculature has been proposed....
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The objective is to characterize angiogenic networks using contrast-enhanced multiple scattering. methods relies on the measurement of diffusion constant from time evolution incoherent backscattered intensity. Dual-frequency arrays allow emit a pulse at frequency close resonance microbubbles, and receive echoes higher harmonics, resulting in better contrast-to-tissue ratio compared single transducers. At 8 MHz, we demonstrated that enables quantification vascular density anisotropy...