Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (3)
- Biochemistry, Biophysics, and Structural Biology (2)
- Biomedical Engineering and Bioengineering (2)
- Biophysics (2)
- Chemical Engineering (2)
-
- Engineering (2)
- Fluid Dynamics (2)
- Optics (2)
- Biochemistry (1)
- Bioimaging and Biomedical Optics (1)
- Biology and Biomimetic Materials (1)
- Biomaterials (1)
- Biotechnology (1)
- Chemistry (1)
- Complex Fluids (1)
- Computer Sciences (1)
- Condensed Matter Physics (1)
- Geometry and Topology (1)
- Materials Chemistry (1)
- Materials Science and Engineering (1)
- Mathematics (1)
- Microbiology (1)
- Numerical Analysis and Scientific Computing (1)
- Other Biomedical Engineering and Bioengineering (1)
- Other Physics (1)
- Polymer Chemistry (1)
- Polymer Science (1)
- Polymer and Organic Materials (1)
- Keyword
-
- AAV (1)
- Biosensors (1)
- CFD (1)
- Characterizing (1)
- Chlamydomonas reinhardtii (1)
-
- Ciliary flow (1)
- Computational Modeling (1)
- DPM (1)
- Discrete Dipole Approximation (1)
- Electro-Optics (1)
- Folding (1)
- Fortran (1)
- GPVDM Software (1)
- Lattice (1)
- Materials Science (1)
- Optical fibers (1)
- Organic Photovoltaics (1)
- Organics (1)
- PDMS (1)
- Perfusion chromatography (1)
- Perovskite Solar Cells (1)
- Photonics (1)
- Plasmonics (1)
- Quantum Harmonic Oscillator (1)
- Self-assembly (1)
- Shear (1)
- Solar Cells (1)
- Stentor (1)
- Stentor polymorphus (1)
- Thermoreflectance Imaging (1)
Articles 1 - 6 of 6
Full-Text Articles in Physics
Modeling Residence Time Distribution Of Chromatographic Perfusion Resin For Large Biopharmaceutical Molecules: A Computational Fluid Dynamic Study, Kevin Vehar
KGI Theses and Dissertations
The need for production processes of large biotherapeutic particles, such as virus-based particles and extracellular vesicles, has risen due to increased demand in the development of vaccinations, gene therapies, and cancer treatments. Liquid chromatography plays a significant role in the purification process and is routinely used with therapeutic protein production. However, performance with larger macromolecules is often inconsistent, and parameter estimation for process development can be extremely time- and resource-intensive. This thesis aimed to utilize advances in computational fluid dynamic (CFD) modeling to generate a first-principle model of the chromatographic process while minimizing model parameter estimation's physical resource demand. Specifically, …
Decay And Dissipation: Finding Energy Level Jumps In A Harmonic Oscillator System Using Fortran And Fourier Analysis, Clara Chilton
Decay And Dissipation: Finding Energy Level Jumps In A Harmonic Oscillator System Using Fortran And Fourier Analysis, Clara Chilton
Scripps Senior Theses
In this paper, I will look at a mass-spring system that can be described by a Hamiltonian. In most systems described by a Hamiltonian, the energy levels will be quantized, and the system will be able to jump between them. However, many methods of finding these jumps aren’t well-suited to numerical analysis. I’ll use a Markovian approximation (The Liouville von Neuman Equation), which allows me to use only the last time step to find the current one. Using this, I will analyze the system to find the time evolution of the probability density matrix – whose diagonal shows the probability …
Complex Ciliary Flows Around Stentor Polymorphus In Solutions Of 2% Buttermilk And Chlamydomonas Reinhardtii, Eliana B. Smithstein
Complex Ciliary Flows Around Stentor Polymorphus In Solutions Of 2% Buttermilk And Chlamydomonas Reinhardtii, Eliana B. Smithstein
Scripps Senior Theses
Stentor are large, unicellular ciliates of the Heterotricha order. They live in both freshwater and marine habitats and are mostly found in ponds. I studied Stentor polymorphus, which is a species of Stentor only recently discovered to be lab culturable. They range from 0.5-1.5mm in length and are unusual because they live with endosymbiotic algae and are much more likely than other, more widely studied, species of Stentor to form aggregates while they are eating. There are three main components to this thesis: First, I established protocols for keeping a viable S. polymorphus culture, since no protocols had been …
Gravity-Drawing Flexible Silicone Filaments As Fiber Optics And Model Foldamers, Katherine Snell
Gravity-Drawing Flexible Silicone Filaments As Fiber Optics And Model Foldamers, Katherine Snell
CMC Senior Theses
Here, we present a method of gravity-drawing polydimethylsiloxane (PDMS) silicone fibers with application as fiber optics and as model foldamers. Beginning as a viscous liquid, PDMS is cured using heat until its measured viscosity reaches 4000 mPa•s. The semi-cured elastomer is then extruded through a tube furnace to produce thin (diameters on the order of hundred micrometers) filaments with scalable lengths. PDMS is biocompatible, gas-permeable, flexible, and hydrophobic. Additionally, the PDMS surface hydrophobicity can be modified via UV exposure, O2 plasma, and corona discharge. We demonstrate the patternibility (i.e patterns of hydrophobicity) of PDMS fibers, adding complexity to potential foldamer …
Electrodynamics Modeling Of Plasmonic-Organic Hybrid Waveguides, Marcus Michel
Electrodynamics Modeling Of Plasmonic-Organic Hybrid Waveguides, Marcus Michel
Pomona Senior Theses
Optical fibers have multiple advantages over conventional electrical connections, such as lower energy losses and higher bandwidth. To use optics for chip-to-chip communication, electro-optic (EO) modulators need to be scaled down to be incorporated on integrated circuits. This size reduction has been accomplished using plasmonic-organic hybrid (POH) waveguides, which make use of nonlinear organic EO materials and surface plasmon polaritons to achieve light modulation in devices with lengths on the micron scale. As these devices are just starting to be developed, there are many avenues for their potential optimization. In order to streamline and reduce the cost of the optimization …
Characterizing Solar Cells, Katheryn R. Kornegay
Characterizing Solar Cells, Katheryn R. Kornegay
Pomona Senior Theses
Perovskite solar cells and organic photovoltaics are both attractive because of their potential flexibility, tunable material properties, and low cost. Though perovskite solar cells have reached efficiencies comparable to conventional silicon solar cells, these have only occurred with lab-scale devices. Organic photovoltaics have much lower operating efficiencies than both perovskite and silicon solar cells, often due to non-uniformities and defects. In this thesis, we use two different techniques to better characterize these two types of solar cells. For perovskite solar cells, we use a drift-diffusion model, to characterize the transition between different doped states in its hole-transport layer, Spiro-OMeTAD, and …