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Penn State University
1.
Chiang, Tso-yi.
Modeling Colloidal Motor Transport in Bounded Systems.
Degree: 2014, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/21774
► Colloidal motors move autonomously due to a self-generated electric field, and they have shown new possibilities for the development of micromachines in sensing, pumping, and…
(more)
▼ Colloidal motors move autonomously due to a self-generated electric field, and they have shown new possibilities for the development of micromachines in sensing, pumping, and cargo transport. Several models have been developed to describe the movement of the motors; however, one of the common assumptions has been that motors move in an unbounded solution. While results exist for colloidal particles undergoing applied-field electrokinetics near a wall, there are no calculated results for auto-electrokinetic motion near a wall. This led us to examine how a bounding wall affects the speed of colloidal motors.
With our modeling approach, localized electroosmotic (LEO) flows are shown to exist when motors approach the wall closely. Unlike a continuous flow caused by an applied electric field, the LEO flow induced by spherical colloidal motors exists primarily on the charged wall below the motor, ranging within one
particle diameter away from the motor. For motors moving near a wall with the same sign of zeta potential as the motor, LEO manifests itself by slowing down the
particle, which is consistent with experimental observations. In addition, we examine a different driving force for flows due to dissolving minerals, deriving a general expression for diffusioosmotic flows caused by a concentration gradient involving multiple ions of different valences.
With flows driven by self-generated fields, we apply them to geometries that would not allow flows by the conventional pressure-driven mechanism – a dead-end pore. We show that Transient Diffusioosmotic Flows (TDOFs) can be created in a dead-end capillary with a time-dependent and spatially-nonuniform salt gradient. TDOFs can drive transport through the dead-end capillary, and by manipulating the surface potentials, we can even cause exchange of materials. This provides a new path in driving flows in bounded geometries. Furthermore, while the small size of the tube makes it hard to create pressure-driven flows in a microchannel, flows driven by self-generated fields could be a more efficient way to create flows in narrow channels and tight pores.
This dissertation comprises many research fields including: electrokinetics (electrophoresis and diffusiophoresis), diffusion, electromigration, colloidal forces, and catalyst chemistry.
Advisors/Committee Members: Darrell Velegol, Dissertation Advisor/Co-Advisor, Ali Borhan, Committee Member, Themis Matsoukas, Committee Member, Ayusman Sen, Committee Member.
Subjects/Keywords: colloidal motor; electrophoresis; diffusiophoresis; particle-surface interactions
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APA (6th Edition):
Chiang, T. (2014). Modeling Colloidal Motor Transport in Bounded Systems. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/21774
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chiang, Tso-yi. “Modeling Colloidal Motor Transport in Bounded Systems.” 2014. Thesis, Penn State University. Accessed April 12, 2021.
https://submit-etda.libraries.psu.edu/catalog/21774.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chiang, Tso-yi. “Modeling Colloidal Motor Transport in Bounded Systems.” 2014. Web. 12 Apr 2021.
Vancouver:
Chiang T. Modeling Colloidal Motor Transport in Bounded Systems. [Internet] [Thesis]. Penn State University; 2014. [cited 2021 Apr 12].
Available from: https://submit-etda.libraries.psu.edu/catalog/21774.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chiang T. Modeling Colloidal Motor Transport in Bounded Systems. [Thesis]. Penn State University; 2014. Available from: https://submit-etda.libraries.psu.edu/catalog/21774
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Southern California
2.
Han, Daoru.
Particle‐in‐cell simulations of plasma interactions with
asteroidal and lunar surfaces.
Degree: PhD, Astronautical Engineering, 2015, University of Southern California
URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/639389/rec/4940
► Motivated by the lack of knowledge about plasma interactions with asteroidal and lunar surfaces, we extended a legacy immersed‐finite‐element particle‐in‐cell (IFE‐PIC) simulation package to perform…
(more)
▼ Motivated by the lack of knowledge about plasma
interactions with asteroidal and lunar surfaces, we extended a
legacy immersed‐finite‐element particle‐in‐cell (IFE‐PIC)
simulation package to perform first‐principle‐based kinetic
simulations of plasmas interacting with realistic‐shaped surfaces.
❧ A customized surface of arbitrary geometries described by an
algebraic equation z = z(x, y) was introduced to the library of the
IFE‐PIC package capable of modeling rugged and realistic surface
topographies. A series of test cases were selected to validate all
the key components of the IFE‐PIC package with the new‐added
geometry, for both homogeneous and non‐homogeneous solvers. Surface
charging was accurately resolved which is one of the key physical
phenomenon associated with plasma‐surface
interactions. ❧ The
validated IFE‐PIC package was employed to simulate plasma
interactions with both asteroidal and lunar surfaces, providing
numerical solutions of plasma environments, electrostatic fields,
and effects of the electric field on the levitation of charged dust
grains. ❧ For the simulations of plasma
interactions at asteroids,
different sizes and structures of asteroids under different plasma
environments are considered. The results imply that: • The presence
of the photoemissions significantly affects the surface charging in
the sunlit regions, which indicates that strong differential
charging may be developed near terminator regions; • A consolidated
core inside the asteroid does not significantly affect the plasma
environment or surface charging. ❧ For plasma
interactions with the
lunar surface, simulations were performed for a local rugged
surface topography in the terminator regions for a variety of
plasma environments. Three different plasma conditions (solar wind
average, solar wind low, and magnetosheath plasma) are considered
for two Sun elevation angles (0° and 5°). The plasma environments
and electrostatic fields near the surface are resolved and their
effects on the charged dust grains are discussed. The results
indicate that: • The plasma wake caused by the rugged local surface
will lead to differential charging of the lunar surface; • A higher
Sun elevation angle will make the surface potential less negative
as a result of combined effects of impacting ions and
photoemissions; • Different charging models for charged dust grains
lead to significantly different net accelerations of those grains.
The net accelerations from the layered‐dust charging model are
about two orders of magnitude smaller than those of the single‐dust
model. ❧ This study provides knowledge of the plasma environments
and electrostatic field information for future exploration missions
at asteroidal and lunar surfaces.
Advisors/Committee Members: Wang, Joseph (Committee Chair), Erwin, Daniel A. (Committee Member), Nakano, Aiichiro (Committee Member).
Subjects/Keywords: plasma interactions; asteroids; lunar; particle-in-cell
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
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Manager
APA (6th Edition):
Han, D. (2015). Particle‐in‐cell simulations of plasma interactions with
asteroidal and lunar surfaces. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/639389/rec/4940
Chicago Manual of Style (16th Edition):
Han, Daoru. “Particle‐in‐cell simulations of plasma interactions with
asteroidal and lunar surfaces.” 2015. Doctoral Dissertation, University of Southern California. Accessed April 12, 2021.
http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/639389/rec/4940.
MLA Handbook (7th Edition):
Han, Daoru. “Particle‐in‐cell simulations of plasma interactions with
asteroidal and lunar surfaces.” 2015. Web. 12 Apr 2021.
Vancouver:
Han D. Particle‐in‐cell simulations of plasma interactions with
asteroidal and lunar surfaces. [Internet] [Doctoral dissertation]. University of Southern California; 2015. [cited 2021 Apr 12].
Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/639389/rec/4940.
Council of Science Editors:
Han D. Particle‐in‐cell simulations of plasma interactions with
asteroidal and lunar surfaces. [Doctoral Dissertation]. University of Southern California; 2015. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/639389/rec/4940

University of Florida
3.
Akella, Ravi Bharadwaj.
Fluid Flow through Porous Media.
Degree: MS, Computer Engineering - Computer and Information Science and Engineering, 2015, University of Florida
URL: https://ufdc.ufl.edu/UFE0049690
► This thesis explains an implementation for simulating fluid flow through porous media. The algorithm represents the physical principles of porous flow governed by Darcy law…
(more)
▼ This thesis explains an implementation for simulating fluid flow through porous media. The algorithm represents the physical principles of porous flow governed by Darcy law using Smoothed
Particle Hydrodynamics (SPH). SPH has been a popular method for simulation of fluids in various interactive applications. SPH has also been used to simulate fluid flow through porous medium at both microscopic and macroscopic scales. We simulate porous flow at a macroscopic scale in order to minimize the number of simulation elements and to support faster simulation times. The framework is also capable of representing heterogeneous porous materials. ( en )
Advisors/Committee Members: PETERS,JORG (committee chair), JIANG,HUABEI (committee member).
Subjects/Keywords: Fluid flow; Fluid permeability; Fluids; Hydrodynamics; Particle acceleration; Particle density; Particle emission; Particle interactions; Particle mass; Simulations; porous – sph
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APA ·
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APA (6th Edition):
Akella, R. B. (2015). Fluid Flow through Porous Media. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0049690
Chicago Manual of Style (16th Edition):
Akella, Ravi Bharadwaj. “Fluid Flow through Porous Media.” 2015. Masters Thesis, University of Florida. Accessed April 12, 2021.
https://ufdc.ufl.edu/UFE0049690.
MLA Handbook (7th Edition):
Akella, Ravi Bharadwaj. “Fluid Flow through Porous Media.” 2015. Web. 12 Apr 2021.
Vancouver:
Akella RB. Fluid Flow through Porous Media. [Internet] [Masters thesis]. University of Florida; 2015. [cited 2021 Apr 12].
Available from: https://ufdc.ufl.edu/UFE0049690.
Council of Science Editors:
Akella RB. Fluid Flow through Porous Media. [Masters Thesis]. University of Florida; 2015. Available from: https://ufdc.ufl.edu/UFE0049690

Princeton University
4.
Yin, Shuhui.
Towards Multi-Resolution Imaging of Dynamic Processes in Biological Systems
.
Degree: PhD, 2021, Princeton University
URL: http://arks.princeton.edu/ark:/88435/dsp019p290d405
► Dynamic processes in complex systems, such as viral-cell interactions, cargo transport along the cytoskeleton and processive enzyme catalysis, span several orders of magnitude in space…
(more)
▼ Dynamic processes in complex systems, such as viral-cell
interactions, cargo transport along the cytoskeleton and processive enzyme catalysis, span several orders of magnitude in space and time. To study these events, one must visualize, in real time and three dimensions, both the fast and small target of interest – the virus, the cargo or the enzyme – as well as the larger-scale, nearly stationary counterpart – the cell, the cytoskeleton or the substrate. Designed for this purpose, the 3D multi-resolution microscope (3DMRM) can simultaneously track a nanoscale target and image its surrounding environment. Although this tool provided the possibility to conduct such studies in real biological systems, the actual experiments that start with sample preparation to result interpretation can be complicated. This contribution addresses challenges that arise during the application of 3DMRM on different types of biological systems, in aspects of labeling strategies, trajectory analysis and resolution matching. To probe viral-cell
interactions using more biologically-relevant virions instead of abiotic nanoparticles as in the proof-of-concept 3DMRM experiment, a labeling strategy that encapsulates nonblinking giant quantum dots inside pseudotyped HIV-1 virions was designed, which enabled the multi-resolution observation of more realistic viral-cell
interactions. When studying a nanoscale object moving next to a curvilinear structure, such as in the cases of cargo transport along microtubules or processive cellulase catalysis on cellulose fibers, challenges remain in the lack of rigorous tools to extract basic physical parameters and detect their changes, as well as in super localization of the curvilinear features in images to bridge up the resolution gap between the tracking and imaging modalities. For trajectory analysis, a two-variable change point method was developed to detect velocity and/or diffusivity changes in single-
particle trajectories. For resolution matching, an unsupervised learning framework was established to infer positions of line-shaped features in low signal-to-noise images, using only the descriptive prior information of the feature shape. These efforts help to resolve the uncertainty in detectability when moving from artificial nanomachinery to more biologically-relevant systems and allow for quantitative analysis of multi-scale datasets, thus facilitate the application of 3DMRM to direct observation and understanding of dynamics in complex biological systems.
Advisors/Committee Members: Yang, Haw (advisor).
Subjects/Keywords: multi-resolution imaging;
particle-cell interactions;
single-particle tracking;
statistical learning
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APA ·
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Export
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APA (6th Edition):
Yin, S. (2021). Towards Multi-Resolution Imaging of Dynamic Processes in Biological Systems
. (Doctoral Dissertation). Princeton University. Retrieved from http://arks.princeton.edu/ark:/88435/dsp019p290d405
Chicago Manual of Style (16th Edition):
Yin, Shuhui. “Towards Multi-Resolution Imaging of Dynamic Processes in Biological Systems
.” 2021. Doctoral Dissertation, Princeton University. Accessed April 12, 2021.
http://arks.princeton.edu/ark:/88435/dsp019p290d405.
MLA Handbook (7th Edition):
Yin, Shuhui. “Towards Multi-Resolution Imaging of Dynamic Processes in Biological Systems
.” 2021. Web. 12 Apr 2021.
Vancouver:
Yin S. Towards Multi-Resolution Imaging of Dynamic Processes in Biological Systems
. [Internet] [Doctoral dissertation]. Princeton University; 2021. [cited 2021 Apr 12].
Available from: http://arks.princeton.edu/ark:/88435/dsp019p290d405.
Council of Science Editors:
Yin S. Towards Multi-Resolution Imaging of Dynamic Processes in Biological Systems
. [Doctoral Dissertation]. Princeton University; 2021. Available from: http://arks.princeton.edu/ark:/88435/dsp019p290d405

Michigan State University
5.
Farzinnia, Arsham.
Above and beyond the standard model : on phenomenology of Lee-Wick theory and massive vector color-octet.
Degree: 2012, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:1092
► Thesis Ph. D. Michigan State University. Physics 2012.
The present Thesis is dedicated to a formal and phenomenological investigation of extensions to two separate sectors…
(more)
▼ Thesis Ph. D. Michigan State University. Physics 2012.
The present Thesis is dedicated to a formal and phenomenological investigation of extensions to two separate sectors of the Standard Model of particle physics (SM): the electroweak sector and the strong sector. The Thesis is divided into two main parts: Part I focuses on the Lee-Wick Standard Model (LW SM), which, by providing a solution to the Hierarchy problem, forms a natural extension of the electroweak sector, while Part II studies the coloron theory, arising from extending the strong sector gauge group.Providing a general introduction about the current state of the SM and the associated challenges in Chapter 1, we proceed in Chapter 2 to analyze the tension between naturalness and isospin violation in the LW SM. Chapter 3 discusses the global symmetries and the renormalizability of LW scalar QED. A first complete calculation of QCD corrections to the production of a massive color-octet vector boson (colorons) is reported in Chapter 4. Finally, we conclude the Thesis in Chapter 5 by summarizing the discussed results and presenting an outlook for future research in the surveyed areas.
Description based on online resource; title from PDF t.p. (ProQuest, viewed May 5, 2013)
Advisors/Committee Members: Chivukula, Sekhar, Simmons, Elizabeth, Repko, Wayne, Schwienhorst, Reinhard, Mahanti, Bhanu.
Subjects/Keywords: Electroweak interactions; Strong interactions (Nuclear physics); Particle physics; Theoretical physics
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Farzinnia, A. (2012). Above and beyond the standard model : on phenomenology of Lee-Wick theory and massive vector color-octet. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:1092
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Farzinnia, Arsham. “Above and beyond the standard model : on phenomenology of Lee-Wick theory and massive vector color-octet.” 2012. Thesis, Michigan State University. Accessed April 12, 2021.
http://etd.lib.msu.edu/islandora/object/etd:1092.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Farzinnia, Arsham. “Above and beyond the standard model : on phenomenology of Lee-Wick theory and massive vector color-octet.” 2012. Web. 12 Apr 2021.
Vancouver:
Farzinnia A. Above and beyond the standard model : on phenomenology of Lee-Wick theory and massive vector color-octet. [Internet] [Thesis]. Michigan State University; 2012. [cited 2021 Apr 12].
Available from: http://etd.lib.msu.edu/islandora/object/etd:1092.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Farzinnia A. Above and beyond the standard model : on phenomenology of Lee-Wick theory and massive vector color-octet. [Thesis]. Michigan State University; 2012. Available from: http://etd.lib.msu.edu/islandora/object/etd:1092
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Florida
6.
Pham, Phong N.
Origin of Shear-Induced Diffusion in Particulate Suspensions Crucial Role of Solid Contacts Between Particles.
Degree: PhD, Chemical Engineering, 2016, University of Florida
URL: https://ufdc.ufl.edu/UFE0049731
► The fluid mechanics of non-colloidal and neutrally buoyant particles suspended in Newtonian fluids are still an active area of research because accurate predictive capabilities for…
(more)
▼ The fluid mechanics of non-colloidal and neutrally buoyant particles suspended in Newtonian fluids are still an active area of research because accurate predictive capabilities for their dynamics and rheology remain elusive. Even at low Reynolds number, where inertial effects are negligible, particles within a shear flow exhibit irreversible dynamics. This is despite the fact that the fluid motion can be described by the Stokes equations, where reversing the direction of shear should result in a reversal of the velocities, and positions, of the particles. Many theories have been put forth to explain this phenomenon, including the assertion that the hydrodynamic fields created by the multi-body dynamics are chaotic. An alternative hypothesis attributes the irreversibility to contact collisions between particles, which requires a relaxation of the classical assumption that lubrication singularities prevent such
interactions. An integrated program of experimental and computational investigations has been performed to assess the origin of the irreversible behavior of particles within suspensions undergoing periodic shear. The results, described in this dissertation, provide evidence that
particle contacts are responsible for this phenomenon.
Advisors/Committee Members: BUTLER,JASON E (committee chair), NARAYANAN,RANGANATHA (committee member), MEI,RENWEI (committee member), METZGER,BLOEN (committee member), RAHLI,OUAMAR (committee member), CLIMENT,ERIC (committee member), GALLIER,STANY (committee member).
Subjects/Keywords: Chaos; Hydrodynamics; Lubrication; Particle collisions; Particle interactions; Particle motion; Particle trajectories; Shear flow; Simulations; Trajectories; contact – lubrication – rheology – suspensions
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APA ·
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MLA ·
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CSE |
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to Zotero / EndNote / Reference
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APA (6th Edition):
Pham, P. N. (2016). Origin of Shear-Induced Diffusion in Particulate Suspensions Crucial Role of Solid Contacts Between Particles. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0049731
Chicago Manual of Style (16th Edition):
Pham, Phong N. “Origin of Shear-Induced Diffusion in Particulate Suspensions Crucial Role of Solid Contacts Between Particles.” 2016. Doctoral Dissertation, University of Florida. Accessed April 12, 2021.
https://ufdc.ufl.edu/UFE0049731.
MLA Handbook (7th Edition):
Pham, Phong N. “Origin of Shear-Induced Diffusion in Particulate Suspensions Crucial Role of Solid Contacts Between Particles.” 2016. Web. 12 Apr 2021.
Vancouver:
Pham PN. Origin of Shear-Induced Diffusion in Particulate Suspensions Crucial Role of Solid Contacts Between Particles. [Internet] [Doctoral dissertation]. University of Florida; 2016. [cited 2021 Apr 12].
Available from: https://ufdc.ufl.edu/UFE0049731.
Council of Science Editors:
Pham PN. Origin of Shear-Induced Diffusion in Particulate Suspensions Crucial Role of Solid Contacts Between Particles. [Doctoral Dissertation]. University of Florida; 2016. Available from: https://ufdc.ufl.edu/UFE0049731

University of Florida
7.
Carpinone, Paul.
Chemistry and Stability of Thiol Based Polyethylene Glycol Surface Coatings on Colloidal Gold and Their Relationship to Protein Adsorption and Clearance in vivo.
Degree: PhD, Materials Science and Engineering, 2012, University of Florida
URL: https://ufdc.ufl.edu/UFE0044912
► Nanomaterials have presented a wide range of novel biomedical applications, with particular emphasis placed on advances in imaging and treatment delivery. Of the many materials…
(more)
▼ Nanomaterials have presented a wide range of novel biomedical applications, with particular emphasis placed on advances in imaging and treatment delivery. Of the many materials used for various biomedical applications, gold is one of the most widely used particulate nanomaterial.Colloidal gold has been of great interest due to its chemical inertness and its ability to perform multiple functions, such as drug delivery, localized heating of tissues (hyperthermia), and imaging (as a contrast medium). It is also readily functionalized through the use of thiols, which spontaneously form a sulfur to metal bond with the surface. Polyethylene glycol (PEG) is the most widely used coating material for these particles as it provides both steric stability and protein resistance. Though these materials are widely used, their coating chemistry and stability are largely unknown. The goal of this work was to identify the mechanisms of degradation and stability of thiol based polyethylene glycol coatings on gold particles and relate this behavior to protein adsorption and clearance in vivo. The results of this study indicated that the protective coating applied to the particles is highly susceptible to sources of oxidation (specifically dissolved oxygen) and competing adsorbates,among other factors. The quality and presence of impurities in the commercially available thiolated PEG were also found to play a key role in the quality and protein resistance of coatings. Analysis of the stability of these coatings indicated that the coatings rapidly degrade under physiological conditions,which lead to protein adsorption within the first few hours after exposure to plasma or blood. Paralleling the protein adsorption behavior in vitro, clearance of parenterally administered PEG coated particles in mice began to clear and accumulate in the liver and spleen after approximately 2h of circulation time. ( en )
Advisors/Committee Members: Powers, Kevin W (committee chair), Singh, Rajiv K (committee member), El-Shall, Hassan E (committee member), Moudgil, Brij M (committee member), Roberts, Stephen M (committee member), Svoronos, Spyros (committee member).
Subjects/Keywords: Adsorption; Density; Gold coatings; Oxygen; Particle density; Particle interactions; Particle size classes; Reagents; Thiols; Velocity; gold – peg
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Carpinone, P. (2012). Chemistry and Stability of Thiol Based Polyethylene Glycol Surface Coatings on Colloidal Gold and Their Relationship to Protein Adsorption and Clearance in vivo. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044912
Chicago Manual of Style (16th Edition):
Carpinone, Paul. “Chemistry and Stability of Thiol Based Polyethylene Glycol Surface Coatings on Colloidal Gold and Their Relationship to Protein Adsorption and Clearance in vivo.” 2012. Doctoral Dissertation, University of Florida. Accessed April 12, 2021.
https://ufdc.ufl.edu/UFE0044912.
MLA Handbook (7th Edition):
Carpinone, Paul. “Chemistry and Stability of Thiol Based Polyethylene Glycol Surface Coatings on Colloidal Gold and Their Relationship to Protein Adsorption and Clearance in vivo.” 2012. Web. 12 Apr 2021.
Vancouver:
Carpinone P. Chemistry and Stability of Thiol Based Polyethylene Glycol Surface Coatings on Colloidal Gold and Their Relationship to Protein Adsorption and Clearance in vivo. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Apr 12].
Available from: https://ufdc.ufl.edu/UFE0044912.
Council of Science Editors:
Carpinone P. Chemistry and Stability of Thiol Based Polyethylene Glycol Surface Coatings on Colloidal Gold and Their Relationship to Protein Adsorption and Clearance in vivo. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044912

University of Florida
8.
Muniz, Lana D.
Search for New Physics in Same-Sign Dilepton Events in the CMS Detector at the Large Hadron Collider.
Degree: PhD, Physics, 2014, University of Florida
URL: https://ufdc.ufl.edu/UFE0046283
► CMS results of a new physics search in same-sign dilepton events with b-tagged jets and missing transverse energy (MET) are being presented. These results cover…
(more)
▼ CMS results of a new physics search in same-sign dilepton events with b-tagged jets and missing transverse energy (MET) are being presented. These results cover the full 2012 dataset from the LHC at root(s)=8 TeV, corresponding to 19.5/fb. Isolated same-sign dilepton events are easily detected and rare in the Standard Model (SM), but they occur in abundance in some supersymmetry (SUSY) models. Hence, this channel provides a very clean, low background, search for new physics. Multiple search regions defined by the observables MET, hadronic energy (HT), and number of b-tagged jets are considered. The data agrees with the SM prediction, therefore exclusion limits at 95% C.L. are presented for various simplified SUSY models. ( en )
Advisors/Committee Members: YELTON,JOHN M (committee chair), KORYTOV,ANDREY (committee member), TANNER,DAVID B (committee member), MITSELMAKHER,GUENAKH (committee member), SARAJEDINI,VICKI LYNN (committee member).
Subjects/Keywords: Electrons; Hypertension; Leptons; Muons; Particle interactions; Particle mass; Physics; Signals; Supersymmetry; Vertices; cms – lhc – particle – physics – supersymmetry
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Muniz, L. D. (2014). Search for New Physics in Same-Sign Dilepton Events in the CMS Detector at the Large Hadron Collider. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0046283
Chicago Manual of Style (16th Edition):
Muniz, Lana D. “Search for New Physics in Same-Sign Dilepton Events in the CMS Detector at the Large Hadron Collider.” 2014. Doctoral Dissertation, University of Florida. Accessed April 12, 2021.
https://ufdc.ufl.edu/UFE0046283.
MLA Handbook (7th Edition):
Muniz, Lana D. “Search for New Physics in Same-Sign Dilepton Events in the CMS Detector at the Large Hadron Collider.” 2014. Web. 12 Apr 2021.
Vancouver:
Muniz LD. Search for New Physics in Same-Sign Dilepton Events in the CMS Detector at the Large Hadron Collider. [Internet] [Doctoral dissertation]. University of Florida; 2014. [cited 2021 Apr 12].
Available from: https://ufdc.ufl.edu/UFE0046283.
Council of Science Editors:
Muniz LD. Search for New Physics in Same-Sign Dilepton Events in the CMS Detector at the Large Hadron Collider. [Doctoral Dissertation]. University of Florida; 2014. Available from: https://ufdc.ufl.edu/UFE0046283

University of Florida
9.
Jenkins, Charles M.
Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards.
Degree: PhD, Environmental Engineering Sciences, 2012, University of Florida
URL: https://ufdc.ufl.edu/UFE0044343
► A high speed framing camera (HSFC) and a particle image velocimetry (PIV) instrument were used to determine the properties of explosively driven particle fields in…
(more)
▼ A high speed framing camera (HSFC) and a
particle image velocimetry (PIV) instrument were used to determine the properties of explosively driven
particle fields in microsecond and millisecond intervals. Two-inch long right circular cylindrical charges with half-inch diameter cores made of organic explosive were used as the driving explosive. The core was surrounded by a
particle bed of aluminum or tungsten powder of a specific
particle size distribution. Position data from the leading edge of the
particle fronts for each charge were recorded with the framing camera at early time, first 125 µs, and with a PIV instrument at later time (5.7 ms) to determine the mean
particle velocities. In addition, using a PIV image, a velocity gradient along the length of the
particle field was established by using the mean
particle velocity value determined from three separate horizontal bands that transverse the
particle field. The results showed lower velocity particles at the beginning of the
particle field closest to the source and higher velocity particles at the leading front portion of the field. Differences in
particle dispersal, luminescence, and agglomeration were seen when changes in the initial
particle size and material type were made. The aluminum powders showed extensive luminescence with agglomeration, forming large
particle structures while a tungsten powder showed little luminescence, agglomeration and no
particle structures. Combining velocity data from the HSFC and PIV, the average drag coefficient for each powder type was determined. The
particle field velocities and drag coefficients at one meter showed good agreement with the numerical data produced from a computational fluid dynamics code. The dissolution rate of aluminum powder in serum ultrafiltrate stimulant solution was conducted. A match to the International Commission on Radiological Protection, ICRP 66 lung model default value for the overall instantaneous clearance rate was determined. Using a ratio of volume moments derived from the sample powder system, a correction to the experimental dissolution rate constant was made to fit a mono distributed powder system that will allow the constant to be applied to other powder systems with different
particle size distributions. ( en )
Advisors/Committee Members: Wu, Chang-Yu (committee chair), Koopman, Ben L (committee member), Roberts, Stephen M (committee member), Bolch, Wesley E (committee member), Powers, Kevin W (committee member), Cheng, Meng-Dawn (committee member).
Subjects/Keywords: Aluminum; Detonation; Explosives; Metal particles; Particle density; Particle interactions; Particle mass; Shock waves; Simulations; Velocity; dissolution – flow – multiphase – piv
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Jenkins, C. M. (2012). Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044343
Chicago Manual of Style (16th Edition):
Jenkins, Charles M. “Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards.” 2012. Doctoral Dissertation, University of Florida. Accessed April 12, 2021.
https://ufdc.ufl.edu/UFE0044343.
MLA Handbook (7th Edition):
Jenkins, Charles M. “Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards.” 2012. Web. 12 Apr 2021.
Vancouver:
Jenkins CM. Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Apr 12].
Available from: https://ufdc.ufl.edu/UFE0044343.
Council of Science Editors:
Jenkins CM. Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044343

University of Alberta
10.
Kemps, Jeffrey A L.
The Effects of Substrate Heterogeneity on Colloid
Deposition.
Degree: PhD, Department of Mechanical Engineering, 2009, University of Alberta
URL: https://era.library.ualberta.ca/files/5x21tg89t
► Heterogeneity of surfaces is often included in mathematical treatments of colloid transport and deposition as an afterthought, if at all. Most previous models of colloid…
(more)
▼ Heterogeneity of surfaces is often included in
mathematical treatments of colloid transport and deposition as an
afterthought, if at all. Most previous models of colloid transport
and deposition have employed idealizations and simplifications such
as assuming smooth collector surfaces with uniform chemical
properties. This research proposes a new heterogeneous interaction
model (HIM) to account for colloidal forces between particles and
heterogeneous substrates. Extending the approach employed with the
HIM, the inclusion of convection and diffusion in the model leads
to a Lagrangian particle tracking model (PTM) for predicting
colloid transport and deposition on a planar substrate containing
one or more protruding asperities in the presence of shear flow. An
important part of the PTM is an accurate rendering of the fluid
flow field around the model substrate, which is obtained from a
numerical solution of the Stokes equations. A simple approximation
of the particle-substrate hydrodynamic interactions was developed
for the PTM based on the universal hydrodynamic correction
functions. This model was employed to quantitatively predict how
presence of asperities on a collector can influence the deposition
of particles on the substrate in shear flow. Flow field
modifications due to the substrate's physical heterogeneity –
coupled with hydrodynamic interactions – and the lateral migration
(colloidal) forces near chemically heterogeneous substrates yield
remarkably diverse deposition probabilities and deposit
morphologies. The general approach of this research, which involves
the use of the HIM in conjunction with the Brownian PTM, results in
the first simulation tool of its kind to attempt to quantify
deposition on heterogeneous substrates.
Subjects/Keywords: interactions; model; hydrodynamic; particle; heterogeneity; Brownian; DLVO; Lagrangian; deposition; simulations
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kemps, J. A. L. (2009). The Effects of Substrate Heterogeneity on Colloid
Deposition. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/5x21tg89t
Chicago Manual of Style (16th Edition):
Kemps, Jeffrey A L. “The Effects of Substrate Heterogeneity on Colloid
Deposition.” 2009. Doctoral Dissertation, University of Alberta. Accessed April 12, 2021.
https://era.library.ualberta.ca/files/5x21tg89t.
MLA Handbook (7th Edition):
Kemps, Jeffrey A L. “The Effects of Substrate Heterogeneity on Colloid
Deposition.” 2009. Web. 12 Apr 2021.
Vancouver:
Kemps JAL. The Effects of Substrate Heterogeneity on Colloid
Deposition. [Internet] [Doctoral dissertation]. University of Alberta; 2009. [cited 2021 Apr 12].
Available from: https://era.library.ualberta.ca/files/5x21tg89t.
Council of Science Editors:
Kemps JAL. The Effects of Substrate Heterogeneity on Colloid
Deposition. [Doctoral Dissertation]. University of Alberta; 2009. Available from: https://era.library.ualberta.ca/files/5x21tg89t

Penn State University
11.
Wang, Wei.
Understanding the propulsion and assembly of autonomous nano- and micromotors powered by chemical gradients and ultrasound.
Degree: 2013, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/18789
► Nano- and micromotors are a type of machines that turn energy into mechanical motion at the corresponding scales. Autonomous nano- and micromotors have attracted the…
(more)
▼ Nano- and micromotors are a type of machines that turn energy into mechanical motion at the corresponding scales. Autonomous nano- and micromotors have attracted the attention of the scientific community since the initial discovery of the catalytically powered motion of Au-Pt bimetallic nanowires in hydrogen peroxide (H2O2) solution. This particular nanomotor system operates by a self-generated electric field (self-electrophoresis) through asymmetric surface catalytic reactions. However there are two challenges that greatly limit the use of such nanomotors in biological systems: low energy conversion efficiency and poor bio-compatibility of the fuel and the propulsion mechanism. The goal of my research projects is to address these challenges by modifying existing and discovering new nano- and micromotor systems.
Chapter 1 provides a general overview of the research field of nano- and micromotor, the challenges within this field, and a concise description of the research projects discussed in this dissertation.
Chapter 2 in this dissertation is dedicated to addressing the issue of the low energy conversion efficiency of the Au-Pt nanomotors, which is estimated to be on the order of 10^-9. Four stages of energy loss are identified. A 10^-3 energy is lost due to the non-electrochemical decomposition of H2O2 at the Pt end of the Au-Pt motor, and another 10^-3 energy loss can be partially attributed to the fast diffusion of protons. The electrophoretic propulsion mechanism is found to be intrinsically inefficient, contributing to another 10-3 energy loss, while the electroosmotic flow near the charged substrate further slows down the motor. Efforts are made to improve the energy efficiency. Replacing platinum with the less catalytically active ruthenium increases the energy efficiency, and confining the proton flux with a tubular structure is also a promising way to improve the energy efficiency of catalytic motors. These two modifications combined improved the energy efficiency of bimetallic nanomotors by a factor of 12. A numerical model based on COMSOL multi-physics package provides useful information, and is discussed in more detail in Chapter 5. The energy efficiency of a few other nano- and micromotor systems is also discussed. A better understanding of the energy loss of nanomotor systems sheds light on future designs of more efficient nanomotors.
The dynamic
interactions and
particle assembly phenomena in the bimetallic catalytic nanomotor system are investigated in Chapter 3. Au-Pt nanomotors in H2O2 solutions were found to form doublets and triplets of staggered shapes. A combination of asymmetric pumping and electrostatic
interactions between charged ionic clouds around the nanomotors is proposed to explain the binding between two bimetallic nanomotors and the staggered shapes of these doublets. The spontaneous rotation and disintegration of these doublets are attributed to an asymmetric distribution of forces. In addition, bimetallic nanomotors can attract charged microparticles to form close-packed…
Advisors/Committee Members: Thomas E Mallouk, Dissertation Advisor/Co-Advisor, Thomas E Mallouk, Committee Chair/Co-Chair, Ayusman Sen, Committee Member, Christine Dolan Keating, Committee Member, Jun Huang, Committee Member.
Subjects/Keywords: Nanomotors; Numerical simulation; Energy efficiency; Ultrasound; Particle interactions; Self-assembly
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wang, W. (2013). Understanding the propulsion and assembly of autonomous nano- and micromotors powered by chemical gradients and ultrasound. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/18789
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wang, Wei. “Understanding the propulsion and assembly of autonomous nano- and micromotors powered by chemical gradients and ultrasound.” 2013. Thesis, Penn State University. Accessed April 12, 2021.
https://submit-etda.libraries.psu.edu/catalog/18789.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wang, Wei. “Understanding the propulsion and assembly of autonomous nano- and micromotors powered by chemical gradients and ultrasound.” 2013. Web. 12 Apr 2021.
Vancouver:
Wang W. Understanding the propulsion and assembly of autonomous nano- and micromotors powered by chemical gradients and ultrasound. [Internet] [Thesis]. Penn State University; 2013. [cited 2021 Apr 12].
Available from: https://submit-etda.libraries.psu.edu/catalog/18789.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wang W. Understanding the propulsion and assembly of autonomous nano- and micromotors powered by chemical gradients and ultrasound. [Thesis]. Penn State University; 2013. Available from: https://submit-etda.libraries.psu.edu/catalog/18789
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
12.
Ahmadihojatabad, Narges.
Nonlinear Evolution of Mirror Instability in the Earth's Magnetosheath in PIC Simulations.
Degree: PhD, 2016, University of New Hampshire
URL: https://scholars.unh.edu/dissertation/1366
► Mirror modes are large amplitude non-propagating structures frequently observed in the magnetosheath and they are generated in space plasma environments with proton temperature anisotropy…
(more)
▼ Mirror modes are large amplitude non-propagating structures frequently observed in the magnetosheath and they are generated in space plasma environments with proton temperature anisotropy of larger than one. The proton temperature anisotropy also drives the proton cyclotron instability which has larger linear growth rate than that of the mirror instability. Linear dispersion theory predicts that electron temperature anisotropy can enhance the mirror instability growth rate while leaving the proton cyclotron instability largely unaffected. Contrary to the hypothesis, electron temperature anisotropy leads to excitement of the electron whistler instability. Our results show that the electron whistler instability grows much faster than the mirror instability and quickly consumes the electron free energy, so that there is not enough electron temperature anisotropy left to significantly impact the evolution of the mirror instability.
Observational studies have shown that the shape of mirror structures is related to local plasma parameters and distance to the mirror instability threshold. Mirror structures in the form of magnetic holes are observed when plasma is mirror stable or marginally mirror unstable and magnetic peaks are observed when plasma is mirror unstable. Mirror structures are created downstream of the quasi-perpendicular bow shock and they are convected toward the magnetopause. In the middle magnetosheath, where plasma is mirror unstable, mirror structures are dominated by magnetic peaks. Close to the magnetopause, plasma expansion makes the region mirror stable and magnetic peaks evolve to magnetic holes. We investigate the nonlinear evolution of mirror instability using expanding box
Particle-in-Cell simulations. We change the plasma conditions by artificially enlarging the simulation box over time to make the plasma mirror stable and investigate the final nonlinear state of the mirror structures. We show that the direct nonlinear evolution of the mirror instability leads to magnetic peaks while in expanding box simulations, mirror structures evolve to deep magnetic holes.
Advisors/Committee Members: Kai Germaschewski, Benjamin Chandran, Joachim Raeder.
Subjects/Keywords: Space Plasma Instabilities; Wave particle interactions; Plasma physics; Physics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ahmadihojatabad, N. (2016). Nonlinear Evolution of Mirror Instability in the Earth's Magnetosheath in PIC Simulations. (Doctoral Dissertation). University of New Hampshire. Retrieved from https://scholars.unh.edu/dissertation/1366
Chicago Manual of Style (16th Edition):
Ahmadihojatabad, Narges. “Nonlinear Evolution of Mirror Instability in the Earth's Magnetosheath in PIC Simulations.” 2016. Doctoral Dissertation, University of New Hampshire. Accessed April 12, 2021.
https://scholars.unh.edu/dissertation/1366.
MLA Handbook (7th Edition):
Ahmadihojatabad, Narges. “Nonlinear Evolution of Mirror Instability in the Earth's Magnetosheath in PIC Simulations.” 2016. Web. 12 Apr 2021.
Vancouver:
Ahmadihojatabad N. Nonlinear Evolution of Mirror Instability in the Earth's Magnetosheath in PIC Simulations. [Internet] [Doctoral dissertation]. University of New Hampshire; 2016. [cited 2021 Apr 12].
Available from: https://scholars.unh.edu/dissertation/1366.
Council of Science Editors:
Ahmadihojatabad N. Nonlinear Evolution of Mirror Instability in the Earth's Magnetosheath in PIC Simulations. [Doctoral Dissertation]. University of New Hampshire; 2016. Available from: https://scholars.unh.edu/dissertation/1366

University of Cambridge
13.
Allison, Hayley Jane.
Understanding how low energy electrons control the variability of the Earth's electron radiation belts.
Degree: PhD, 2019, University of Cambridge
URL: https://www.repository.cam.ac.uk/handle/1810/294431
► The electron radiation belts are regions of geomagnetically trapped electrons, surrounding the Earth, presenting hazards to operational satellites. On the timeframe of hours, both the…
(more)
▼ The electron radiation belts are regions of geomagnetically trapped electrons, surrounding
the Earth, presenting hazards to operational satellites. On the timeframe of hours, both the
energy and particle flux of the radiation belts can change by orders of magnitude. Variations
in the high energy relativistic electron flux depend on transport, acceleration, loss processes,
and importantly, on the lower energy seed (10s – 100s keV) population. Seed population
electrons are supplied to the radiation belt region during geomagnetically active periods and
can be accelerated to higher energies via a range of processes. Unlike the higher energy,
>1 MeV electrons, the azimuthal drift of the seed population is strongly affected by the
convection electric field.
Using fourteen years of electron flux data from low Earth orbit (LEO) satellites, a statistical
study was performed on the magnetic local time distribution of three seed population
energies, across a range of activity levels, defined by the geomagnetic indices AE, AE*,
Kp, the solar wind velocity, and VswBz. During periods of high activity, dawn-dusk flux
asymmetries of over an order of magnitude were observed for >30 and >100 keV electrons,
due to increased flux in the dawn sector. For >300 keV electrons, magnetic local time
asymmetries were also present, but arose primarily due to a decrease in the average dusk-side
flux beyond L* ∼4.5.
A novel method was developed that utilizes measurements from low altitude, polar
orbiting POES and MetOp satellites to retrieve the seed population at a pitch angle of 90o.
The resulting dataset offers a high time resolution, across multiple magnetic local time
planes, and was used to formulate event-specific low energy boundary conditions for the
British Antarctic Survey Radiation Belt Model (BAS-RBM). This new low energy boundary
condition from LEO data has a higher spatial and temporal resolution, and a broader L*
coverage, than previous work.
The impact of variations in the seed population on the 1 MeV flux level was explored
using the 3-D BAS-RBM to solve a diffusion equation for the electron phase space density.
For some periods, an enhancement in the seed population was vital to recreate observed 1
MeV flux enhancements. A series of idealised experiments with the 2-D BAS-RBM were
performed which highlight a careful balance between losses and acceleration from chorus
waves. Our results show that seed population enhancements alter this balance by increasing
the phase space density gradient, and consequently, the rate of energy diffusion, allowing
acceleration to surpass loss. Additionally, pre-existing energy gradients in the phase space
density and the duration of chorus wave activity determine whether >500 keV electrons were
enhanced due to local acceleration.
Subjects/Keywords: Radiation belts; electrons; wave particle interactions; seed population electrons
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Allison, H. J. (2019). Understanding how low energy electrons control the variability of the Earth's electron radiation belts. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/294431
Chicago Manual of Style (16th Edition):
Allison, Hayley Jane. “Understanding how low energy electrons control the variability of the Earth's electron radiation belts.” 2019. Doctoral Dissertation, University of Cambridge. Accessed April 12, 2021.
https://www.repository.cam.ac.uk/handle/1810/294431.
MLA Handbook (7th Edition):
Allison, Hayley Jane. “Understanding how low energy electrons control the variability of the Earth's electron radiation belts.” 2019. Web. 12 Apr 2021.
Vancouver:
Allison HJ. Understanding how low energy electrons control the variability of the Earth's electron radiation belts. [Internet] [Doctoral dissertation]. University of Cambridge; 2019. [cited 2021 Apr 12].
Available from: https://www.repository.cam.ac.uk/handle/1810/294431.
Council of Science Editors:
Allison HJ. Understanding how low energy electrons control the variability of the Earth's electron radiation belts. [Doctoral Dissertation]. University of Cambridge; 2019. Available from: https://www.repository.cam.ac.uk/handle/1810/294431

University of North Texas
14.
Davis, James William.
Development of a Laponite Pluronic Composite for Foaming Applications.
Degree: 2012, University of North Texas
URL: https://digital.library.unt.edu/ark:/67531/metadc271798/
► The focus of the following research was to provide an optimized particle stabilized foam of Laponite and Pluronic L62 in water by understanding (1) the…
(more)
▼ The focus of the following research was to provide an optimized
particle stabilized foam of Laponite and Pluronic L62 in water by understanding (1) the Laponite-Pluronic
interactions and properties for improved performance in a
particle stabilized foam and (2) the interfacial properties between air and the Laponite-Pluronic complex. These studies were conducted using both bulk and interfacial rheology, XRD, sessile droplet, TGA and UV-vis. Two novel and simple techniques, lamella break point and capillary breakup extensional rheometry, were used to both understand the Laponite Pluronic L62 interaction and determine a different mechanism for foaming properties. Bulk rheological properties identified an optimal Laponite concentration of 2% with Pluronic L62 ranging from 2.5% and 6.5%, due to the ease of flow for the dispersion. The Pluronic L62 was observed to enhance the Laponite bulk rheological properties in solution. Additionally TGA showed a similar trend in thermal resistance to water with both addition of Laponite and Pluronic L62. XRD demonstrated that 0.25% Pluronic intercalated into Laponite from dried 2% Laponite films. XRD demonstrated that the Laponite matrix was saturated at 1% Pluronic L62. UV-vis demonstrated that a monolayer of Pluronic L62 is observed up to 0.65% Pluronic L62 onto Laponite. Interfacial rheology showed that Laponite enhances Pluronic L62 at the air-liquid interface by improving the storage modulus as low at 0.65% Pluronic L62 with 2% Laponite. The lamella breakpoint of Laponite with Pluronic films indicate strong film interaction due to higher increases in mass. Extensional rheology indicates that 2.5% to 6.5% Pluronic with 2% Laponite show the most filament resistance to stretching.
Advisors/Committee Members: Golden, Teresa D., D'Souza, Nandika Anne, 1967-, Verbeck, Guido F., Thomas, Ruthanne D., Boclair, Joseph W..
Subjects/Keywords: Colloid polymer interactions; particle stabilized forms; interfacial rheology
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University of Cambridge
15.
Fung, Jimmy Chi Hung.
Kinematic simulation of turbulent flow and particle motions.
Degree: PhD, 1990, University of Cambridge
URL: https://doi.org/10.17863/CAM.16122
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303032
► This thesis describes a new method for simulating high Reynolds number turbulence which requires much less computing power. This involved both theoretical work - to…
(more)
▼ This thesis describes a new method for simulating high Reynolds number turbulence which requires much less computing power. This involved both theoretical work - to understand and model the important processes - and computational work, to implement the model efficiently. There are 'many different techniques for modelling particle dispersion in turbulent flow (e.g. K-theory and Random Flight) but they make assumptions about the fluid-particle interaction and require empirical coefficients. Theoretical work on the motion of bubbles and varticles in idealised flows has shown that the instantaneous structure of the velocity field is important in determining particle trajectories, and that particle motion cannot currently be modelled reliably in terms of time- or ensemble-averaged fluid velocities. Therefore the solution of many practical problems requires the simulation of the instantaneous structure of a turbulent velocity field. This can now be provided with the very large computers and large amounts of computer time; even then, only low Reynolds number turbulence can be simulated. In the method developed here, the velocity field of homogeneous isotropic turbulence is simulated by a large number of random Fourier modes varying in space and time. They are chosen so that the flow field has certain properties, namely (i) it satisfies continuity, (ii) the two point Eulerian spatial spectra have known form (e.g. the Kolmogorov inertial subrange), (iii) the time dependence is modelled by dividing the turbulence into large- and small-scales eddies, and by assuming that the large eddies advect the small eddies which also decorrelate as they are advected, (iv) the large- and small-scale Fourier modes are each statistically independent and Gaussian. Computations of the streamlines in a sequence of realisations of the flow show that they have a similar structure to that obtained from direct numerical simulations. New results for the statistics of high Reynolds number turbulent flows are obtained, for the velocity and pressure fields . Particle statistics are obtained by computing the trajectories of many particles and taking the ensemble average. Particle dispersion has been computed for a range of particle parameters and the results agree well with experimental measurements such as those of Snyder and Lumley; this enables us to compute empirical coefficients (e.g. Lagrangian timescales) for use in simpler models such as Random Flight, and for modelling other processes such as combustion and mixing. Rapid Distortion Theory is used to investigate the effects of high shear rate on the structure of homogeneous turbulence in chapter 4. The results show that an important effect of the shear acting on initially isotropic turbulence is the selective amplification of structures having large length scale in the mean flow direction.
Subjects/Keywords: 532; Fluid-particle interactions
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fung, J. C. H. (1990). Kinematic simulation of turbulent flow and particle motions. (Doctoral Dissertation). University of Cambridge. Retrieved from https://doi.org/10.17863/CAM.16122 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303032
Chicago Manual of Style (16th Edition):
Fung, Jimmy Chi Hung. “Kinematic simulation of turbulent flow and particle motions.” 1990. Doctoral Dissertation, University of Cambridge. Accessed April 12, 2021.
https://doi.org/10.17863/CAM.16122 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303032.
MLA Handbook (7th Edition):
Fung, Jimmy Chi Hung. “Kinematic simulation of turbulent flow and particle motions.” 1990. Web. 12 Apr 2021.
Vancouver:
Fung JCH. Kinematic simulation of turbulent flow and particle motions. [Internet] [Doctoral dissertation]. University of Cambridge; 1990. [cited 2021 Apr 12].
Available from: https://doi.org/10.17863/CAM.16122 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303032.
Council of Science Editors:
Fung JCH. Kinematic simulation of turbulent flow and particle motions. [Doctoral Dissertation]. University of Cambridge; 1990. Available from: https://doi.org/10.17863/CAM.16122 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303032
16.
Allison, Hayley Jane.
Understanding how low energy electrons control the variability of the Earth's electron radiation belts.
Degree: PhD, 2019, University of Cambridge
URL: https://doi.org/10.17863/CAM.41530
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.782918
► The electron radiation belts are regions of geomagnetically trapped electrons, surrounding the Earth, presenting hazards to operational satellites. On the timeframe of hours, both the…
(more)
▼ The electron radiation belts are regions of geomagnetically trapped electrons, surrounding the Earth, presenting hazards to operational satellites. On the timeframe of hours, both the energy and particle flux of the radiation belts can change by orders of magnitude. Variations in the high energy relativistic electron flux depend on transport, acceleration, loss processes, and importantly, on the lower energy seed (10s - 100s keV) population. Seed population electrons are supplied to the radiation belt region during geomagnetically active periods and can be accelerated to higher energies via a range of processes. Unlike the higher energy, > 1 MeV electrons, the azimuthal drift of the seed population is strongly affected by the convection electric field. Using fourteen years of electron flux data from low Earth orbit (LEO) satellites, a statistical study was performed on the magnetic local time distribution of three seed population energies, across a range of activity levels, defined by the geomagnetic indices AE, AE*, Kp, the solar wind velocity, and VswBz. During periods of high activity, dawn-dusk flux asymmetries of over an order of magnitude were observed for > 30 and > 100 keV electrons, due to increased flux in the dawn sector. For > 300 keV electrons, magnetic local time asymmetries were also present, but arose primarily due to a decrease in the average dusk-side flux beyond L* ~ 4.5. A novel method was developed that utilizes measurements from low altitude, polar orbiting POES and MetOp satellites to retrieve the seed population at a pitch angle of 90°. The resulting dataset offers a high time resolution, across multiple magnetic local time planes, and was used to formulate event-specific low energy boundary conditions for the British Antarctic Survey Radiation Belt Model (BAS-RBM). This new low energy boundary condition from LEO data has a higher spatial and temporal resolution, and a broader L* coverage, than previous work. The impact of variations in the seed population on the 1 MeV flux level was explored using the 3-D BAS-RBM to solve a diffusion equation for the electron phase space density. For some periods, an enhancement in the seed population was vital to recreate observed 1 MeV flux enhancements. A series of idealised experiments with the 2-D BAS-RBM were performed which highlight a careful balance between losses and acceleration from chorus waves. Our results show that seed population enhancements alter this balance by increasing the phase space density gradient, and consequently, the rate of energy diffusion, allowing acceleration to surpass loss. Additionally, pre-existing energy gradients in the phase space density and the duration of chorus wave activity determine whether > 500 keV electrons were enhanced due to local acceleration.
Subjects/Keywords: Radiation belts; electrons; wave particle interactions; seed population electrons
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Allison, H. J. (2019). Understanding how low energy electrons control the variability of the Earth's electron radiation belts. (Doctoral Dissertation). University of Cambridge. Retrieved from https://doi.org/10.17863/CAM.41530 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.782918
Chicago Manual of Style (16th Edition):
Allison, Hayley Jane. “Understanding how low energy electrons control the variability of the Earth's electron radiation belts.” 2019. Doctoral Dissertation, University of Cambridge. Accessed April 12, 2021.
https://doi.org/10.17863/CAM.41530 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.782918.
MLA Handbook (7th Edition):
Allison, Hayley Jane. “Understanding how low energy electrons control the variability of the Earth's electron radiation belts.” 2019. Web. 12 Apr 2021.
Vancouver:
Allison HJ. Understanding how low energy electrons control the variability of the Earth's electron radiation belts. [Internet] [Doctoral dissertation]. University of Cambridge; 2019. [cited 2021 Apr 12].
Available from: https://doi.org/10.17863/CAM.41530 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.782918.
Council of Science Editors:
Allison HJ. Understanding how low energy electrons control the variability of the Earth's electron radiation belts. [Doctoral Dissertation]. University of Cambridge; 2019. Available from: https://doi.org/10.17863/CAM.41530 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.782918

Michigan State University
17.
Diaz, Enrique Arrieta.
Observation of muon neutrino charged current events in an off-axis horn-focused neutrino beam using the NOnuA prototype detector.
Degree: 2014, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:2939
► Thesis Ph. D. Michigan State University. Physics 2014.
The NOνA is a long base-line neutrino oscillation experiment. It will study the oscillations between muon and…
(more)
▼ Thesis Ph. D. Michigan State University. Physics 2014.
The NOνA is a long base-line neutrino oscillation experiment. It will study the oscillations between muon and electron neutrinos through the Earth. NOνA consists of two detectors separated by 810 km. Each detector will measure the electron neutrino content of the neutrino (NuMI) beam. Differences between the measurements will reveal details aboutthe oscillation channel. The NOνA collaboration built a prototype detector on the surface at Fermilab in order to develop calibration, simulation, and reconstruction tools, using real data. This 220 ton detector is 110 mrad off the NuMI beam axis. This off-axis locationallows the observation of neutrino interactions with energies around 2 GeV, where neutrinos come predominantly from charged kaon decays. During the period between October 2011 and April 2012, the prototype detector collected neutrino data from 1.67 × 1020 protons on target delivered by the NuMI beam. This analysis selected a number of candidate charged current muon neutrino events from the prototype data, which is 30% lower than predicted by the NOνA Monte Carlo simulation. The analysis suggests that the discrepancy comes from an over estimation of the neutrino flux in the Monte Carlo simulation, and in particular, from neutrinos generated in charged kaon decays. The ratio of measured divided by the simulated flux of muon neutrinos coming from charged kaon decays is: 0.70+0.108<sub>−0.094</sub>. The NOνA collaboration may use the findings of this analysis to introduce a more accurate prediction of the neutrino flux produced by the NuMI beam in future Monte Carlo simulations.
Description based on online resource; title from PDF t.p. (viewed on August 18, 2017)
Advisors/Committee Members: Bromberg, Carl M, Birge, Norman, Brock, Raymond, Huston, Joey, Westfall, Gary.
Subjects/Keywords: Nuclear physics – Experiments; Neutrino interactions; Muons; Oscillations – Measurement; Physics; Particle physics
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APA ·
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MLA ·
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APA (6th Edition):
Diaz, E. A. (2014). Observation of muon neutrino charged current events in an off-axis horn-focused neutrino beam using the NOnuA prototype detector. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:2939
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Diaz, Enrique Arrieta. “Observation of muon neutrino charged current events in an off-axis horn-focused neutrino beam using the NOnuA prototype detector.” 2014. Thesis, Michigan State University. Accessed April 12, 2021.
http://etd.lib.msu.edu/islandora/object/etd:2939.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Diaz, Enrique Arrieta. “Observation of muon neutrino charged current events in an off-axis horn-focused neutrino beam using the NOnuA prototype detector.” 2014. Web. 12 Apr 2021.
Vancouver:
Diaz EA. Observation of muon neutrino charged current events in an off-axis horn-focused neutrino beam using the NOnuA prototype detector. [Internet] [Thesis]. Michigan State University; 2014. [cited 2021 Apr 12].
Available from: http://etd.lib.msu.edu/islandora/object/etd:2939.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Diaz EA. Observation of muon neutrino charged current events in an off-axis horn-focused neutrino beam using the NOnuA prototype detector. [Thesis]. Michigan State University; 2014. Available from: http://etd.lib.msu.edu/islandora/object/etd:2939
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University
18.
Chegwidden, Andrew McRae.
A multivariate analysis search for a single-top quark produced in association with missing energy in proton-proton collisions at the Large Hadron Collider at a center-of-mass energy of 221As = 8 TeV with the ATLAS detector.
Degree: 2017, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:4790
► Thesis Ph. D. Michigan State University. Physics 2017
This dissertation presents a search for single-top quarks produced in association with missing energy, denoted as monotop,…
(more)
▼ Thesis Ph. D. Michigan State University. Physics 2017
This dissertation presents a search for single-top quarks produced in association with missing energy, denoted as monotop, using 20.3~fb\mathhyphen 1 of proton-proton collision data at √{s}=8~TeV recorded with the ATLAS detector. The search is conducted in two separate analyses consisting of a cut-based and a multivariate approach. As no deviation from the Standard Model prediction is observed, upper limits are set on the monotop production cross-section times branching ratio for resonant and non-resonant production of an invisible exotic state in association with a single-top quark. In the case of resonant production, for a spin-0 resonance with a mass of 500~GeV, an effective coupling strength above 0.13 is excluded at the 95% confidence level for an invisible spin-1/2 state with mass up to 100~GeV using the cut-based approach. In the case of non-resonant production, an effective coupling strength above 0.2 is excluded at the 95% confidence level for an invisible spin-1 state with mass up to 657~GeV and 799~GeV using the cut-based and multivariate approaches, respectively. In addition to setting observed limits at √{s}=8~TeV, expected upper limits are set on the non-resonant production model for future levels of integrated luminosity expected to be recorded at √{s}=13~TeV.
Description based on online resource;
Advisors/Committee Members: Brock, Raymond, Birge, Norman, Alvarez-Gonzalez, Barbara, Linnemann, James, Pratt, Scott, Schmidt, Carl.
Subjects/Keywords: Quarks; Proton-proton interactions; Particles (Nuclear physics) – Flavor; Particle physics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chegwidden, A. M. (2017). A multivariate analysis search for a single-top quark produced in association with missing energy in proton-proton collisions at the Large Hadron Collider at a center-of-mass energy of 221As = 8 TeV with the ATLAS detector. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:4790
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chegwidden, Andrew McRae. “A multivariate analysis search for a single-top quark produced in association with missing energy in proton-proton collisions at the Large Hadron Collider at a center-of-mass energy of 221As = 8 TeV with the ATLAS detector.” 2017. Thesis, Michigan State University. Accessed April 12, 2021.
http://etd.lib.msu.edu/islandora/object/etd:4790.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chegwidden, Andrew McRae. “A multivariate analysis search for a single-top quark produced in association with missing energy in proton-proton collisions at the Large Hadron Collider at a center-of-mass energy of 221As = 8 TeV with the ATLAS detector.” 2017. Web. 12 Apr 2021.
Vancouver:
Chegwidden AM. A multivariate analysis search for a single-top quark produced in association with missing energy in proton-proton collisions at the Large Hadron Collider at a center-of-mass energy of 221As = 8 TeV with the ATLAS detector. [Internet] [Thesis]. Michigan State University; 2017. [cited 2021 Apr 12].
Available from: http://etd.lib.msu.edu/islandora/object/etd:4790.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chegwidden AM. A multivariate analysis search for a single-top quark produced in association with missing energy in proton-proton collisions at the Large Hadron Collider at a center-of-mass energy of 221As = 8 TeV with the ATLAS detector. [Thesis]. Michigan State University; 2017. Available from: http://etd.lib.msu.edu/islandora/object/etd:4790
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University
19.
Heim, Sarah.
Search for high-mass dielectron resonances with the ATLAS detector.
Degree: 2012, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:1642
► Thesis Ph. D. Michigan State University, Physics 2012.
This thesis describes a search for new heavy particles decaying into electron-positron pairs. The search utilizes 1.08…
(more)
▼ Thesis Ph. D. Michigan State University, Physics 2012.
This thesis describes a search for new heavy particles decaying into electron-positron pairs. The search utilizes 1.08 inverse femtobarn of proton-proton collisions at a center-of-mass energy of sqrt(s) = 7 TeV, produced in 2011 by the Large Hadron Collider and recorded with the ATLAS detector at the CERN laboratory in Switzerland. The reconstructed dielectron invariant mass spectrum is compared to Standard Model expectations. Since no significant excess is found, upper limits on the cross-section times branching ratio of Z' bosons and Randall-Sundrum gravitons are determined at the 95% confidence level using a Bayesian approach. These limits are combined with limits obtained by a parallel analysis in the muon channel and converted into lower limits on the masses of the Sequential Standard Model Z' boson (1.88 TeV), E6 Z' bosons (1.54 - 1.68 TeV) as well as the Randall-Sundrum graviton (1.67 TeV for k/MPl = 0.1).
Description based on online resource; title from PDF t.p. (ProQuest, viewed on Jan. 16, 2013)
Advisors/Committee Members: Schwienhorst, Reinhard, Pope, Bernard, Repko, Wayne, Pratt, Scott, Mahanti, Bhanu.
Subjects/Keywords: Particles (Nuclear physics); Nuclear track detectors; Proton-proton interactions; Particle physics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Heim, S. (2012). Search for high-mass dielectron resonances with the ATLAS detector. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:1642
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Heim, Sarah. “Search for high-mass dielectron resonances with the ATLAS detector.” 2012. Thesis, Michigan State University. Accessed April 12, 2021.
http://etd.lib.msu.edu/islandora/object/etd:1642.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Heim, Sarah. “Search for high-mass dielectron resonances with the ATLAS detector.” 2012. Web. 12 Apr 2021.
Vancouver:
Heim S. Search for high-mass dielectron resonances with the ATLAS detector. [Internet] [Thesis]. Michigan State University; 2012. [cited 2021 Apr 12].
Available from: http://etd.lib.msu.edu/islandora/object/etd:1642.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Heim S. Search for high-mass dielectron resonances with the ATLAS detector. [Thesis]. Michigan State University; 2012. Available from: http://etd.lib.msu.edu/islandora/object/etd:1642
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University
20.
Dhanasekaran, Johnson.
Evolution of the size distribution of drops settling in a non-continuum, turbulent gas.
Degree: PhD, Mechanical Engineering, 2019, Cornell University
URL: http://hdl.handle.net/1813/70018
► The evolution of droplets in clouds is studied with focus on the 'size-gap' regime of 15-40 μm radius, where condensation and differential sedimentation are least…
(more)
▼ The evolution of droplets in clouds is studied with focus on the 'size-gap' regime of 15-40 μm radius, where condensation and differential sedimentation are least effective in promoting growth. This bottleneck leads to inaccurate growth models and turbulence can potentially rectify disagreement with in-situ cloud measurements. Turbulent shear and differential sedimentation will both drive collisional growth in the ‘size-gap’ and the resulting coupled configurational dynamics is rigorously studied. Droplet inertia will not significantly alter the local collision dynamics as it is weak in typical cloud conditions. However, weak inertia acting over a range of separation scales enhances the concentration of neighbouring drops available for collision. An inertial clustering model is developed which incorporates an inertia-induced drift velocity, relative diffusion due to turbulent shear and acceleration and differential sedimentation. This model is built upon available direct-numerical simulations and theoretical predictions in limiting conditions. It allows predictions over a broad range of
particle separations, Stokes numbers, settling velocities and Taylor scale Reynolds numbers Reλ. The inertia-less local collision dynamics of sub-Kolmogorov droplets due to turbulence and gravity is studied for both a frozen linear flow approximation, in line with the classical work by Saffman & Turner, and for a stochastically fluctuating linear flow based on a Lagrangian velocity gradient model. It is found that the ideal collision rate has a significant dependence on Reλ that has not been recognized in previous work. Inclusion of interparticle
interactions strongly retards the collision rate. Non-continuum hydrodynamic
interactions of droplets in clouds dominates over colloidal forces, deformation, interface mobility, and medium compressibility but has not found extensive treatment in the previous literature. Hence, the collision efficiency, capturing retardation, is calculated over a large parameter space including Knudsen number (Kn), the ratio of mean free path to mean sphere radius, relative size of the interacting spheres, Reλ, and strength of differential sedimentation relative to turbulence. Analytical fits of the collision rate results facilitate their use in drop population models. The steady linear flow approximation facilitated a detailed examination of the complex trajectory evolution that results from the competition of gravity and shear in the presence of non-continuum hydrodynamic
interactions. Utilising the collision rate results an evolution study is carried for cloud droplets from condensation controlled sizes of a few micron to differential sedimentation dominated sizes through the ‘size-gap’. For a complete description of cloud droplet dynamics non-collisional components of turbulence, mixing of droplets and water vapour fluctuations, are included. To resolve turbulent intermittency and retain a discrete drop distribution with manageable computational load a Monte Carlo scheme is used. Cloud packets…
Advisors/Committee Members: Koch, Donald L. (chair), Collins, Lance (committee member), Bewley, Gregory Paul (committee member).
Subjects/Keywords: Hydrodynamic interactions; Particle/fluid flow; Slender-body theory; Turbulence
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dhanasekaran, J. (2019). Evolution of the size distribution of drops settling in a non-continuum, turbulent gas. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/70018
Chicago Manual of Style (16th Edition):
Dhanasekaran, Johnson. “Evolution of the size distribution of drops settling in a non-continuum, turbulent gas.” 2019. Doctoral Dissertation, Cornell University. Accessed April 12, 2021.
http://hdl.handle.net/1813/70018.
MLA Handbook (7th Edition):
Dhanasekaran, Johnson. “Evolution of the size distribution of drops settling in a non-continuum, turbulent gas.” 2019. Web. 12 Apr 2021.
Vancouver:
Dhanasekaran J. Evolution of the size distribution of drops settling in a non-continuum, turbulent gas. [Internet] [Doctoral dissertation]. Cornell University; 2019. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/1813/70018.
Council of Science Editors:
Dhanasekaran J. Evolution of the size distribution of drops settling in a non-continuum, turbulent gas. [Doctoral Dissertation]. Cornell University; 2019. Available from: http://hdl.handle.net/1813/70018
21.
Leblanc, Philippe.
Study of transport of laser-driven relativistic electrons in solid materials.
Degree: 2013, University of Nevada – Reno
URL: http://hdl.handle.net/11714/3245
► With the ultra intense lasers available today, it is possible to generate very hot electron beams in solid density materials. These intense laser-matter interactions result…
(more)
▼ With the ultra intense lasers available today, it is possible to generate very hot electron beams in solid density materials. These intense laser-matter
interactions result in many applications which include the generation of ultrashort secondary sources of particles and radiation such as ions, neutrons, positrons, x-rays, or even laser-driven hadron therapy. For these applications to become reality, a comprehensive understanding of laser-driven energy transport including hot electron generation through the various mechanisms of ionization, and their subsequent transport in solid density media is required. This study will focus on the characterization of electron transport effects in solid density targets using the state-of- the-art
particle-in-cell code PICLS. A number of simulation results will be presented on the topics of ionization propagation in insulator glass targets, non-equilibrium ionization mod- eling featuring electron impact ionization, and electron beam guiding by the self-generated resistive magnetic field. An empirically derived scaling relation for the resistive magnetic in terms of the laser parameters and material properties is presented and used to derive a guiding condition. This condition may prove useful for the design of future laser-matter interaction experiments.
Advisors/Committee Members: Sentoku, Yasuhiko (advisor), Covington, Aaron (committee member), Presura, Radu (committee member), Mancini, Roberto (committee member), Harris, Frederick (committee member).
Subjects/Keywords: Electron transport; Laser-matter interactions; Particle-in-cell; Simulations
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Leblanc, P. (2013). Study of transport of laser-driven relativistic electrons in solid materials. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/3245
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Leblanc, Philippe. “Study of transport of laser-driven relativistic electrons in solid materials.” 2013. Thesis, University of Nevada – Reno. Accessed April 12, 2021.
http://hdl.handle.net/11714/3245.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Leblanc, Philippe. “Study of transport of laser-driven relativistic electrons in solid materials.” 2013. Web. 12 Apr 2021.
Vancouver:
Leblanc P. Study of transport of laser-driven relativistic electrons in solid materials. [Internet] [Thesis]. University of Nevada – Reno; 2013. [cited 2021 Apr 12].
Available from: http://hdl.handle.net/11714/3245.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Leblanc P. Study of transport of laser-driven relativistic electrons in solid materials. [Thesis]. University of Nevada – Reno; 2013. Available from: http://hdl.handle.net/11714/3245
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
22.
André Veiga Giannini.
Fenomenologia da QCD com saturação de pártons.
Degree: 2017, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-03082017-162211/
► O estudo das interações fortes a altas energias levou a um grande interesse no regime da QCD onde os pártons carregam uma pequena fração de…
(more)
▼ O estudo das interações fortes a altas energias levou a um grande interesse no regime da QCD onde os pártons carregam uma pequena fração de momento dos hádrons colidentes. Neste regime, tais hádrons podem ser vistos como um meio altamente denso e colorido. Acredita-se hoje que, no domínio de altas energias e/ou altas densidades, a dinâmica da QCD torna-se qualitativamente diferente da dinâmica no regime de curtas distâncias e de altos momentos transferidos. Na linguagem de pártons, essa teoria vem sendo descrita em termos da ``saturação\'d́e pártons, resultando na formação de matéria de alta densidade, o Condensado de Vidro de Cor (Color Glass Condensate - CGC), onde os efeitos de recombinação de gluons se tornam muito importantes. Nesse trabalho consideram-se os efeitos da saturação de pártons no estudo de processos hadrônicos e de fotoprodução. Tais efeitos foram incluídos fazendo-se uso de duas diferentes abordagens: inicialmente eles foram
introduzidos como correções não lineares de mais altas ordens na constante de acoplamento forte nas equações de evolução para as distribuições de pártons e, posteriormente, através dos chamados modelos de ``dipolo de corc̈om o uso da chamada ``abordagem do CGC\". No primeiro caso estudamos o comportamento energético das seções de choque totais próton-próton (antipróton) (pp(\\bar p)), fóton-próton (\γ p) e fóton-fóton (\γ\γ) e inelástica próton-Ar (pAr) e verificamos que a presença dos efeitos da saturação atenua o crescimento das seções de choque consideradas a altíssimas energias. No segundo caso desenvolvemos cinco outros estudos, sendo os quatro primeiros voltados para a produção de partículas nas regiões central e frontal de rapidez em colisões hadrônicas. Considerando em um primeiro momento a região frontal de rapidez, estudamos as distribuições de rapidez e em x-Feynman referentes à produção líquida de bárions em colisões pp, pA e núcleo-núcleo
(AA), onde observamos uma violação do scaling de Feynman no espectro em x
F de partículas dominantes e, posteriormente, a produção de mesons D em colisões pp, onde verificamos que a existência do chamado ``charme intrínsecon̈a função de onda do projétil altera as distribuições em x
F de tais mesons em uma região importante para a física de raios cósmicos. Em seguida, apresentamos um estudo sobre o comportamento do momento transversal médio de partículas carregadas produzidas em colisões pp e pA com a rapidez e com a energia da colisão, \< p
T(y,\√{s})angle e mostramos que a razão R = \< p
T(y,\√{s})angle / \< p
T(0,\√{s})angle decresce com a rapidez para uma energia fixa, tendo um comportamento semelhante aquele obtido via modelos hidrodinâmicos. Com o uso do chamado formalismo da ``fatorização k
T\", no quarto estudo consideramos a produção de partículas em colisões pp, pA e AA na região central de rapidez e mostramos
que as correções na constante de acoplamento forte, incluídas recentemente na seção de choque invariante para a…
Advisors/Committee Members: Francisco de Oliveira Durães, Fernando Silveira Navarra, Frederique Marie Brigitte Sylvie Grassi, Magno Valerio Trindade Machado, Alessio Mangiarotti, Márcio José Menon.
Subjects/Keywords: Física de partículas; Hádrons; Interações nucleares; Hadrons; Nuclear interactions; Particle physics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Giannini, A. V. (2017). Fenomenologia da QCD com saturação de pártons. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/43/43134/tde-03082017-162211/
Chicago Manual of Style (16th Edition):
Giannini, André Veiga. “Fenomenologia da QCD com saturação de pártons.” 2017. Doctoral Dissertation, University of São Paulo. Accessed April 12, 2021.
http://www.teses.usp.br/teses/disponiveis/43/43134/tde-03082017-162211/.
MLA Handbook (7th Edition):
Giannini, André Veiga. “Fenomenologia da QCD com saturação de pártons.” 2017. Web. 12 Apr 2021.
Vancouver:
Giannini AV. Fenomenologia da QCD com saturação de pártons. [Internet] [Doctoral dissertation]. University of São Paulo; 2017. [cited 2021 Apr 12].
Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-03082017-162211/.
Council of Science Editors:
Giannini AV. Fenomenologia da QCD com saturação de pártons. [Doctoral Dissertation]. University of São Paulo; 2017. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-03082017-162211/

University of Florida
23.
Warren, Richard A, Jr.
Laser Induced Breakdown Spectroscopy on Suspended Particulate Matter in an Electrodynamic Balance Interaction Processes and Analytical Considerations.
Degree: PhD, Chemistry, 2013, University of Florida
URL: https://ufdc.ufl.edu/UFE0045006
► Laser induced breakdown spectroscopy (LIBS) has becomeincreasingly popular as a sampling technique since its inception following theinvention of the laser. In what is typically an…
(more)
▼ Laser induced breakdown spectroscopy (LIBS) has becomeincreasingly popular as a sampling technique since its inception following theinvention of the laser. In what is typically an atomic emission method, asingle laser pulse performs the sample ablation, vaporization, and excitationin a single step allowing any phase of matter to be rapidly, qualitativelystudied for the presence of numerous elements. Minimal sample preparation andthe relative simplicity of the typical LIBS instrument make it appealing asboth an analytical tool for the laboratory and for commercial-industrial applications.1,2,3 LIBS has a tremendous potential in the areaof aerosol analysis as it provides a method for in situ analysis of the density and composition of environmentalaerosols which few methods can accomplish as rapidly and remotely.Quantification of sample compositions is possible with LIBS, but requirescareful consideration of the complex mechanisms controlling the sample ablationand excitation mechanisms. Though the physical arrangement for a LIBS aerosolmeasurement can be quite simple the processes involved are all but.4,5 Aerosols are composedof small discrete particles which, when sampled in the lab or in the field, aredifficult to control.6 Variations in themeasurements on these particles can be caused by laser-
particle scattering,
particle to
particle matrix defects and effects, spectral interferences andparticle-photon resonances which are not seen in continuous samples.2,3 This research focuses on the two problems listed above:sample control issues and sources of signal variation, which limit analytequantification. The electrodynamic balance, which has been used by previousresearchers for optical characterization of aerosols7 is used here for LIBSmeasurements. This technique provides complete control of confined, chargedaerosol particles. With this precise handling capability, consistentlaser-
particle and plasma-
particle interactions are observed with bothspectrally integrated / time resolved and time integrated / spectrally resolveddetectors to provide details on the processes involved for micrometer sizedcharged aerosol particles. ( en )
Advisors/Committee Members: Omenetto, Nicolo (committee chair), Angerhofer, Alexander (committee member), Brucat, Philip J (committee member), Smith, Ben W (committee member), Hahn, David Worthington (committee member).
Subjects/Keywords: Aerosols; Diameters; Electric fields; Electric potential; Laser induced breakdown spectroscopy; Lasers; Particle interactions; Particle mass; Plasmas; Signals; aerosol – libs
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APA (6th Edition):
Warren, Richard A, J. (2013). Laser Induced Breakdown Spectroscopy on Suspended Particulate Matter in an Electrodynamic Balance Interaction Processes and Analytical Considerations. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0045006
Chicago Manual of Style (16th Edition):
Warren, Richard A, Jr. “Laser Induced Breakdown Spectroscopy on Suspended Particulate Matter in an Electrodynamic Balance Interaction Processes and Analytical Considerations.” 2013. Doctoral Dissertation, University of Florida. Accessed April 12, 2021.
https://ufdc.ufl.edu/UFE0045006.
MLA Handbook (7th Edition):
Warren, Richard A, Jr. “Laser Induced Breakdown Spectroscopy on Suspended Particulate Matter in an Electrodynamic Balance Interaction Processes and Analytical Considerations.” 2013. Web. 12 Apr 2021.
Vancouver:
Warren, Richard A J. Laser Induced Breakdown Spectroscopy on Suspended Particulate Matter in an Electrodynamic Balance Interaction Processes and Analytical Considerations. [Internet] [Doctoral dissertation]. University of Florida; 2013. [cited 2021 Apr 12].
Available from: https://ufdc.ufl.edu/UFE0045006.
Council of Science Editors:
Warren, Richard A J. Laser Induced Breakdown Spectroscopy on Suspended Particulate Matter in an Electrodynamic Balance Interaction Processes and Analytical Considerations. [Doctoral Dissertation]. University of Florida; 2013. Available from: https://ufdc.ufl.edu/UFE0045006

Clemson University
24.
Gipson, Kyle.
LIGHT-EMITTING NANOCOMPOSITES AND NOVEL AMORPHOUS POLYMERS FOR OPTICAL APPLICATIONS.
Degree: PhD, Polymer and Fiber Science, 2011, Clemson University
URL: https://tigerprints.clemson.edu/all_dissertations/828
► Polymeric optical materials generally are comprised of amorphous polymers that are transparent in at visible wavelengths but exhibit strong absorption bands in the near-infrared making…
(more)
▼ Polymeric optical materials generally are comprised of amorphous polymers that are transparent in at visible wavelengths but exhibit strong absorption bands in the near-infrared making them less useful for many optical applications. Attenuation, which is the absorption per unit length, largely results from the high vibrational energy associated with carbon-hydrogen bonds contained in the polymer backbone. Attenuation can be mitigated by optical amplification utilizing light emitting additives. Investigated in this dissertation are synthesis techniques for the fabrication of light-emitting polymer nanocomposites and their resultant thermal and rheological characteristics for potential use as polymer optical fibers or films. Inorganic nanocrystals doped with optically active rare-earth ions (Tb
3+:LaF
3) treated with organic ligands were synthesized in water and methanol in order to produce polymethyl methacrylate (PMMA) light-emitting nanocomposites. Two different aromatic ligands (acetylsalicylic acid, ASA and 2-picolinic acid, PA) were employed to functionalize the surface of Tb
3+:LaF
3 nanocrystals. We have used infrared spectroscopy, thermal analysis, elemental analysis, dynamic light scattering, rheological measurements and optical spectroscopy to investigate the nanoparticle structure and composition response of ligand-capped nanocrystals under various synthesis parameters. A theoretical interpretation of
particle-to-
particle interactions also was conducted which supported our study of the potential of agglomeration within the nanoparticle suspensions. Novel amorphous polymers (e.g. perfluorocyclobutyl aryl ethers, PFCB), which do not exhibit strong C-H vibrations, have been reported to possess excellent optical properties. Little is known of the intrinsic properties of PFCBs (e.g. biphenylvinyl ether, BPVE and hexafluoroisopropylidene vinyl ether, 6F) as well as the behavior of the polymer melt during extrusion. We preformed empirical and experimental thermal and rheological evaluations of BPVE, 6F and polymer nanocomposites of varying loading levels. These studies provide greater understanding of the melt performance of BPVE, 6F and for optically active nanoparticles within PMMA. The data and the use of a fiber melt extrusion modeling package allowed for the construction of viable initial melt fiber extrusion parameters. Many researchers have focused on the development of polymer light-emitting nanocomposites and novel amorphous polymers for optical applications. I, however, have focused particularly on developing a fundamental understanding of the nanoparticle synthesis. My work concentrates on the surface chemistry of the nanoparticle with an emphasis on the interaction between the surface attached ligand and the polymer matrix. This research will aide in the development of a more optimized and compliant polymeric nanocomposites for optical applications.
Advisors/Committee Members: Brown, Philip J, Ballato , John, Cox , Christopher, Luzinov , Igor.
Subjects/Keywords: Colloidal chemistry; Melt extrusion modeling; pH; Rare-earth ions; Rigid amorphous fraction; Theoretical interpretation of particle-to-particle interactions; Polymer Science
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Gipson, K. (2011). LIGHT-EMITTING NANOCOMPOSITES AND NOVEL AMORPHOUS POLYMERS FOR OPTICAL APPLICATIONS. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/828
Chicago Manual of Style (16th Edition):
Gipson, Kyle. “LIGHT-EMITTING NANOCOMPOSITES AND NOVEL AMORPHOUS POLYMERS FOR OPTICAL APPLICATIONS.” 2011. Doctoral Dissertation, Clemson University. Accessed April 12, 2021.
https://tigerprints.clemson.edu/all_dissertations/828.
MLA Handbook (7th Edition):
Gipson, Kyle. “LIGHT-EMITTING NANOCOMPOSITES AND NOVEL AMORPHOUS POLYMERS FOR OPTICAL APPLICATIONS.” 2011. Web. 12 Apr 2021.
Vancouver:
Gipson K. LIGHT-EMITTING NANOCOMPOSITES AND NOVEL AMORPHOUS POLYMERS FOR OPTICAL APPLICATIONS. [Internet] [Doctoral dissertation]. Clemson University; 2011. [cited 2021 Apr 12].
Available from: https://tigerprints.clemson.edu/all_dissertations/828.
Council of Science Editors:
Gipson K. LIGHT-EMITTING NANOCOMPOSITES AND NOVEL AMORPHOUS POLYMERS FOR OPTICAL APPLICATIONS. [Doctoral Dissertation]. Clemson University; 2011. Available from: https://tigerprints.clemson.edu/all_dissertations/828

Michigan State University
25.
Ittisamai, Pawin.
Strong dynamics at the LHC.
Degree: 2014, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:3055
► Thesis Ph. D. Michigan State University. Physics 2014.
The limitations of the Standard Model of particle physics, despite its being a well-established theory, have prompted…
(more)
▼ Thesis Ph. D. Michigan State University. Physics 2014.
The limitations of the Standard Model of particle physics, despite its being a well-established theory, have prompted various proposals for new physics capable of addressing its shortcomings. The particular issue to be explored here is the mechanism of electroweak symmetry breaking, the probing of which lies within the TeV-scale physics accessible to the Large Hadron Collider (LHC). This thesis focuses on the phenomenology of a class of models featuring a dynamical breaking of the electroweak symmetry via strong dynamics. Consequences of recent experiments and aspects of near-future experiments are presented.We study the implications of the LHC Higgs searches available at the time the related journal article was written for technicolor models that feature colored technifermions. Then we discuss the properties of a technicolor model featuring strong-top dynamics that is viable for explaining the recently discovered boson of mass 126 GeV. We introduce a novel method of characterizing the color structure of a new massive vector boson, often predicted in various new physics models, using information that will be promptly available if it is discovered in the near-future experiments at the LHC. We generalize the idea for more realistic models where a vector boson has flavor non-universal couplings to quarks. Finally, we discuss the possibilities of probing the chiral structure of a new color-octet vector boson.
Description based on online resource; title from PDF t.p. (viewed on Oct. 16, 2017)
Advisors/Committee Members: Chivukula, R. Sekhar, Simmons, Elizabeth, Schmidt, Carl R., Dykman, Mark I., Schwienhorst, Reinhard H..
Subjects/Keywords: Large Hadron Collider (France and Switzerland); Particles (Nuclear physics); Nuclear physics; Electroweak interactions; Strong interactions (Nuclear physics); Phenomenology; Particle physics
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Ittisamai, P. (2014). Strong dynamics at the LHC. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:3055
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ittisamai, Pawin. “Strong dynamics at the LHC.” 2014. Thesis, Michigan State University. Accessed April 12, 2021.
http://etd.lib.msu.edu/islandora/object/etd:3055.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ittisamai, Pawin. “Strong dynamics at the LHC.” 2014. Web. 12 Apr 2021.
Vancouver:
Ittisamai P. Strong dynamics at the LHC. [Internet] [Thesis]. Michigan State University; 2014. [cited 2021 Apr 12].
Available from: http://etd.lib.msu.edu/islandora/object/etd:3055.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ittisamai P. Strong dynamics at the LHC. [Thesis]. Michigan State University; 2014. Available from: http://etd.lib.msu.edu/islandora/object/etd:3055
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
26.
Lambert, Baptiste.
Modelling and Simulations of Contacts in Particle-Laden Flows : Modélisation et simulations numériques des contacts dans des écoulements chargés en particules.
Degree: Docteur es, Mathématiques appliquées et calcul scientifique, 2018, Bordeaux
URL: http://www.theses.fr/2018BORD0190
► Les écoulements chargés en particules sont présents dans de nombreuses applications industrielles telles que le transport de boues ou l’industrie chimique en général. Dans des…
(more)
▼ Les écoulements chargés en particules sont présents dans de nombreuses applications industrielles telles que le transport de boues ou l’industrie chimique en général. Dans des mélanges constitués de particules solides immergées dans un fluide visqueux, les interactions entre particules jouent un rôle essentiel dans la viscosité globale du mélange.Le phénomène de suspension est causé par des interactions hydrodynamiques à courte distance, connues sous le nom de lubrification. Les forces de lubrification sont généralement sous-estimées en raison de leur nature et de la discrétisation spatiale du problème.Dans cette thèse, nous proposons un modèle de lubrification qui estime les forces et couples hydrodynamiques non résolues par un solveur couplant la résolution des équations de Navier-Stokes incompressible par une méthode de volumes pénalisés, à la résolution de la dynamique des particules par une méthode aux éléments discrets. Les corrections des contraintes hydrodynamiques sont faites localement sur la surface des particules en interaction sans aucune hypothèse sur la forme générale des particules. La version finale du modèle de lubrification proposée peut être utilisée pour des suspensions de particules convexes sans aucune tabulation. La méthode numérique a été validée avec des particules sphériques et des ellipsoïdes, en comparant des simulations à des données expérimentales.Dans le cas de particules sphériques, le modèle de lubrification est aussi précis que les modèles de lubrification existants qui sont limités à ce type de géométrie. La compatibilité du modèle avec des particules convexes a été validée en comparant des simulations,utilisant des ellipsoïdes, à des mesures expérimentales que nous avons réalisées.
Particle-laden flows can be found in many industrial applications such as slurry transport or the chemical industry in general. In mixtures made of solid particles emerged in a viscous fluid, particle interactions play an essential role in the overall mixture viscosity. The suspension phenomenon is caused by short-range hydrodynamic interactions, known as lubrication. Lubrication forces are usually underestimated due to their singularities and the spatial discretization of the numerical schemes. In this thesis, we propose a lubrication model for a coupled volume penalization method and discrete element method solver that estimates the unresolved hydrodynamic forces and torques in incompressible Navier-Stokes flows. Corrections are made locally on the surfaces of the interacting particles without any assumption on the global particle shapes. The final version of the local lubrication model can be used for suspension of convex particles without any tabulations. The numerical method has been validated against experimental data with spherical and ellipsoidal particles. With spherical particles, the lubrication model performs as well as existing numerical models that are limited to this specific particle shape. The model compatibility with convex particles has been validated by comparing simulations using…
Advisors/Committee Members: Bergmann, Michel (thesis director), Weynans, Lisl (thesis director).
Subjects/Keywords: Modèle local de lubrification; Interactions fluide-Structure; Ecoulements de particles; Couplage VP-DEM; Particle ellipsoïdales; Local Lubrication Models; Fluid-Structure Interactions; Particle-Laden Flows; Coupled VP-DEM; Ellipsoidal Particles
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lambert, B. (2018). Modelling and Simulations of Contacts in Particle-Laden Flows : Modélisation et simulations numériques des contacts dans des écoulements chargés en particules. (Doctoral Dissertation). Bordeaux. Retrieved from http://www.theses.fr/2018BORD0190
Chicago Manual of Style (16th Edition):
Lambert, Baptiste. “Modelling and Simulations of Contacts in Particle-Laden Flows : Modélisation et simulations numériques des contacts dans des écoulements chargés en particules.” 2018. Doctoral Dissertation, Bordeaux. Accessed April 12, 2021.
http://www.theses.fr/2018BORD0190.
MLA Handbook (7th Edition):
Lambert, Baptiste. “Modelling and Simulations of Contacts in Particle-Laden Flows : Modélisation et simulations numériques des contacts dans des écoulements chargés en particules.” 2018. Web. 12 Apr 2021.
Vancouver:
Lambert B. Modelling and Simulations of Contacts in Particle-Laden Flows : Modélisation et simulations numériques des contacts dans des écoulements chargés en particules. [Internet] [Doctoral dissertation]. Bordeaux; 2018. [cited 2021 Apr 12].
Available from: http://www.theses.fr/2018BORD0190.
Council of Science Editors:
Lambert B. Modelling and Simulations of Contacts in Particle-Laden Flows : Modélisation et simulations numériques des contacts dans des écoulements chargés en particules. [Doctoral Dissertation]. Bordeaux; 2018. Available from: http://www.theses.fr/2018BORD0190
27.
Ikardouchene, Syphax.
Analyses expérimentale et numérique de l'interaction departicules avec un jet d'air plan impactant une surface.Application au confinement particulaire : Experiments and numerical studies on particle interaction with a turbulent air jet impacting a wall - Application to the particular confinement.
Degree: Docteur es, Mécanique des fluides, 2019, Université Paris-Est
URL: http://www.theses.fr/2019PESC1046
► La thèse vise à qualifier les performances de confinement de rideaux d’air vis-à-vis de pollution particulaire. Plus précisément, elle vise à mettre en place, caractériser…
(more)
▼ La thèse vise à qualifier les performances de confinement de rideaux d’air vis-à-vis de pollution particulaire. Plus précisément, elle vise à mettre en place, caractériser et améliorer des barrières de confinement particulaire par des jets d'air plans placés en périphérie de machines tournantes abrasives utilisées pour décaper les surfaces amiantées.
The thesis aims to qualify the containment barriers for particles. Specifically, it aims to develop, characterize and improve particulate confinement barriers by jets of air placed at the periphery of abrasive rotating machines used to scour the surfaces containing asbestos.
Advisors/Committee Members: Ould Rouis, Meryem (thesis director).
Subjects/Keywords: Interactions jet d'air - particules; Confinement dynamique; Jet d'air; Simulation les; Suivi lagrangien des particules; Air jet - particle interactions; Dynamic confinement; Air jet; Large-Eddy-Simulations; Lagrangian particle tracking
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ikardouchene, S. (2019). Analyses expérimentale et numérique de l'interaction departicules avec un jet d'air plan impactant une surface.Application au confinement particulaire : Experiments and numerical studies on particle interaction with a turbulent air jet impacting a wall - Application to the particular confinement. (Doctoral Dissertation). Université Paris-Est. Retrieved from http://www.theses.fr/2019PESC1046
Chicago Manual of Style (16th Edition):
Ikardouchene, Syphax. “Analyses expérimentale et numérique de l'interaction departicules avec un jet d'air plan impactant une surface.Application au confinement particulaire : Experiments and numerical studies on particle interaction with a turbulent air jet impacting a wall - Application to the particular confinement.” 2019. Doctoral Dissertation, Université Paris-Est. Accessed April 12, 2021.
http://www.theses.fr/2019PESC1046.
MLA Handbook (7th Edition):
Ikardouchene, Syphax. “Analyses expérimentale et numérique de l'interaction departicules avec un jet d'air plan impactant une surface.Application au confinement particulaire : Experiments and numerical studies on particle interaction with a turbulent air jet impacting a wall - Application to the particular confinement.” 2019. Web. 12 Apr 2021.
Vancouver:
Ikardouchene S. Analyses expérimentale et numérique de l'interaction departicules avec un jet d'air plan impactant une surface.Application au confinement particulaire : Experiments and numerical studies on particle interaction with a turbulent air jet impacting a wall - Application to the particular confinement. [Internet] [Doctoral dissertation]. Université Paris-Est; 2019. [cited 2021 Apr 12].
Available from: http://www.theses.fr/2019PESC1046.
Council of Science Editors:
Ikardouchene S. Analyses expérimentale et numérique de l'interaction departicules avec un jet d'air plan impactant une surface.Application au confinement particulaire : Experiments and numerical studies on particle interaction with a turbulent air jet impacting a wall - Application to the particular confinement. [Doctoral Dissertation]. Université Paris-Est; 2019. Available from: http://www.theses.fr/2019PESC1046
28.
Carrier-Vallieres, Simon.
Towards reliable, intense and high repetition-rate laser-driven ion beamlines : Vers des faisceaux d'ions accélérés par laser fiables, intenses et à haut taux de répétition.
Degree: Docteur es, Lasers, Matière et Nanosciences, 2020, Bordeaux; Institut national de la recherche scientifique (Québec, province)
URL: http://www.theses.fr/2020BORD0224
► Les accélérateurs de particules attirent beaucoup d’attention en raison de leur nombreuses applications dans des domaines allant des sciences fondamentales, à la médecine jusqu’aux applications…
(more)
▼ Les accélérateurs de particules attirent beaucoup d’attention en raison de leur nombreuses applications dans des domaines allant des sciences fondamentales, à la médecine jusqu’aux applications industrielles. Ces travaux de doctorat se situent au premier plan du développement des sources d’ions générées par laser, afin de les rendre plus compétitives face aux accélérateurs conventionnels. Pour ce faire, les sources d’ions obtenues par laser doivent être compactes, efficaces par rapport aux coûts, fiables, intenses et opérées à des taux de répétition élevés. L’effort général de ces travaux de doctorat vise à pousser leur performance sur trois fronts, soit l’alignement précis des cibles, l’amélioration des cibles à l’aide de nanostructures ainsi que le développement de détecteurs de particules efficients. Cette quête d’efficacité accrue a requis des travaux autant numériques, par l’utilisation de Calcul de haute performance, qu’expérimentaux, par le montage d’une ligne d’accélération d’ions de pointe sur les installations de l’Advanced Laser Light Source (ALLS) 100 TW ainsi qu’en effectuant plusieurs campagnes expérimentales à l’étranger.Les travaux visent d’abord à augmenter la fiabilité des faisceaux d’ions par le positionnement précis des cibles solides utilisées en accélération d’ions par laser. Pour ce faire, un interféromètre de positionnement des cibles (Target Positioning Interferometer, TPI), atteignant une précision d’alignement sous-micrométrique, a été développé. Le design novateur du TPI est un interféromètre de Michelson modifié dans lequel nous avons introduit une lentille convergente asphérique dans le bras de la cible, afin de le transformer en un système de positionnement absolu ayant un unique point d’inambiguïté dans l’espace. La fine capacité d’alignement du TPI est atteinte également avec l’aide d’un algorithme numérique d’analyse des franges d’interférences qui maximise l’extraction de signaux à grand rapport signal-sur-bruit, effectuée dans une fenêtre de temps optimisée.La deuxième partie des travaux concerne le rehaussement du mécanisme d’accélération, permettant de générer de plus grandes quantités d’ions à des plus hautes énergies cinétiques, menant à des faisceaux d’ions plus intenses. Les cibles solides typiquement utilisées sont des feuilles métalliques minces, limitant l’efficacité de conversion d’énergie du laser aux ions à quelques pourcents tout au plus. Une façon d’augmenter cette efficacité de conversion est en nanostructurant la surface des cibles afin d’emprisonner l’onde incidente, augmentant ainsi le transfert d’énergie aux ions. Nous avons démontré, de façon théorique et expérimentale, qu’un ajustement optimal des paramètres géométriques des nanostructures, en particulier avec des nanosphères et des nanofils, mène à une augmentation du nombre d’ions et de leur énergies cinétiques de plusieurs fois les valeurs obtenues avec le même pulse laser incident sur une cible plane faite du même matériau.Dans la dernière partie, les travaux sont orientés sur le développement de détecteurs…
Advisors/Committee Members: D'humieres, Emmanuel (thesis director), Antici, Patrizio (thesis director).
Subjects/Keywords: Optique/photonique; Accéleration de particules; Rayonnements ionisants; Physique des plasmas; Interactions laser-Matière; Détecteurs de particules; Ionizing radiation; Laser-Matter interactions; Particle acceleration; Optics/photonics; Plasma physics; Particle diagnostics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Carrier-Vallieres, S. (2020). Towards reliable, intense and high repetition-rate laser-driven ion beamlines : Vers des faisceaux d'ions accélérés par laser fiables, intenses et à haut taux de répétition. (Doctoral Dissertation). Bordeaux; Institut national de la recherche scientifique (Québec, province). Retrieved from http://www.theses.fr/2020BORD0224
Chicago Manual of Style (16th Edition):
Carrier-Vallieres, Simon. “Towards reliable, intense and high repetition-rate laser-driven ion beamlines : Vers des faisceaux d'ions accélérés par laser fiables, intenses et à haut taux de répétition.” 2020. Doctoral Dissertation, Bordeaux; Institut national de la recherche scientifique (Québec, province). Accessed April 12, 2021.
http://www.theses.fr/2020BORD0224.
MLA Handbook (7th Edition):
Carrier-Vallieres, Simon. “Towards reliable, intense and high repetition-rate laser-driven ion beamlines : Vers des faisceaux d'ions accélérés par laser fiables, intenses et à haut taux de répétition.” 2020. Web. 12 Apr 2021.
Vancouver:
Carrier-Vallieres S. Towards reliable, intense and high repetition-rate laser-driven ion beamlines : Vers des faisceaux d'ions accélérés par laser fiables, intenses et à haut taux de répétition. [Internet] [Doctoral dissertation]. Bordeaux; Institut national de la recherche scientifique (Québec, province); 2020. [cited 2021 Apr 12].
Available from: http://www.theses.fr/2020BORD0224.
Council of Science Editors:
Carrier-Vallieres S. Towards reliable, intense and high repetition-rate laser-driven ion beamlines : Vers des faisceaux d'ions accélérés par laser fiables, intenses et à haut taux de répétition. [Doctoral Dissertation]. Bordeaux; Institut national de la recherche scientifique (Québec, province); 2020. Available from: http://www.theses.fr/2020BORD0224

University of Utah
29.
Gupta, Vishal.
Surface charge features of Kaolinite particles and their
interactions.
Degree: PhD, Metallurgical Engineering, 2011, University of Utah
URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/284/rec/2315
► Kaolinite is both a blessing and a curse. As an important industrial mineral commodity, kaolinite clays are extensively used in the paper, ceramic, paint, plastic…
(more)
▼ Kaolinite is both a blessing and a curse. As an
important industrial mineral commodity, kaolinite clays are
extensively used in the paper, ceramic, paint, plastic and rubber
industries. In all these applications the wettability, aggregation,
dispersion, flotation and thickening of kaolinite particles are
affected by its crystal structure and surface properties. It is
therefore the objective of this research to investigate selected
physical and surface chemical properties of kaolinite, specifically
the surface charge of kaolinite particles. A pool of advanced
analytical techniques such as XRD, XRF, SEM, AFM, FTIR and ISS were
utilized to investigate the morphological and surface chemistry
features of kaolinite. Surface force measurements revealed that the
silica tetrahedral face of kaolinite is negatively charged at pH
> 4, whereas the alumina octahedral face of kaolinite is
positively charged at pH < 6, and negatively charged at pH >
8. Based on electrophoresis measurements, the apparent iso-electric
point for kaolinite particles was determined to be less than pH 3.
In contrast, the point of zero charge was determined to be pH 4.5
by titration techniques, which corresponds to the isoelectric point
of between pH 4 and 5 as determined by surface force measurements.
Results from kaolinite particle interactions indicate that the
silica face–alumina face interaction is dominant for kaolinite
particle aggregation at low and intermediate pH values, which
explains the maximum shear yield stress at pH 5-5.5. Lattice
resolution images reveal the hexagonal lattice structure of these
two face surfaces of kaolinite. Analysis of the silica face of
kaolinite showed that the center of the hexagonal ring of oxygen
atoms is vacant, whereas the alumina face showed that the hexagonal
surface lattice ring of hydroxyls surround another hydroxyl in the
center of the ring. High resolution transmission electron
microscopy investigation of kaolinite has indicated that kaolinite
is indeed composed of silica/alumina bilayers with a c-spacing of
7.2 Å. The surface charge densities of the silica face, the alumina
face and the edge surface of kaolinite all influence particle
interactions, and thereby affect the mechanical properties of
kaolinite suspensions. The improved knowledge of kaolinite surface
chemistry from this dissertation research provides a foundation for
the development of improved process strategies for both the use and
disposal of clay particles such as kaolinite.
Subjects/Keywords: Atomic force microscopy; Iso-electric point; Kaolinite; Lattice resolution; Particle interactions; Titration
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gupta, V. (2011). Surface charge features of Kaolinite particles and their
interactions. (Doctoral Dissertation). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/284/rec/2315
Chicago Manual of Style (16th Edition):
Gupta, Vishal. “Surface charge features of Kaolinite particles and their
interactions.” 2011. Doctoral Dissertation, University of Utah. Accessed April 12, 2021.
http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/284/rec/2315.
MLA Handbook (7th Edition):
Gupta, Vishal. “Surface charge features of Kaolinite particles and their
interactions.” 2011. Web. 12 Apr 2021.
Vancouver:
Gupta V. Surface charge features of Kaolinite particles and their
interactions. [Internet] [Doctoral dissertation]. University of Utah; 2011. [cited 2021 Apr 12].
Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/284/rec/2315.
Council of Science Editors:
Gupta V. Surface charge features of Kaolinite particles and their
interactions. [Doctoral Dissertation]. University of Utah; 2011. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/284/rec/2315

Brigham Young University
30.
Reynolds, Scott B.
Particle Image Velocimetry Analysis on the Effects of Stator Loading on Transonic Blade-Row Interactions.
Degree: MS, 2010, Brigham Young University
URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3086&context=etd
► Experiments have been performed using the Air Force Research Laboratory (AFRL) Blade-Row Interaction (BRI) rig to investigate interactions between a loaded stator and transonic rotor.…
(more)
▼ Experiments have been performed using the Air Force Research Laboratory (AFRL) Blade-Row Interaction (BRI) rig to investigate interactions between a loaded stator and transonic rotor. The BRI rig is a high-speed, highly loaded compressor consisting of a swirler/deswirler, a transonic rotor and a stator. The swirler/deswirler of the BRI rig is used to simulate an embedded transonic fan stage with realistic geometry which produces a wake through diffusion. Details of the unsteady flow field between the stator and rotor were obtained using Particle Image Velocimetry (PIV). Flow visualization images and PIV data that facilitate analysis of vortex shedding, wake motion, and wake-shock-interactions in the blade row are analyzed for three stator/rotor axial spacings and two stator loadings. The data analysis focuses on measuring and comparing, for the different spacings and loading, the vortex size, strength, and location as it forms on the stator trailing edge and propagates downstream into the rotor passage. It was observed that more than one vortex was shed with the passing of a rotor bow shock. These vortices were categorized as small and large vortices with a ~20% decrease in strength. The large vortices were compared at similar location and results show that vortex strength increased as spacing between stator and rotor decreased due to the increased strength of the rotor bow shock impacting the stator trailing edge. Changes in stator loading also affected shed vortex strength. A decrease in stator loading resulted in a decrease in the strength of the vortex shed. The smaller vortices were not affected by a change in spacing but strength was directly related to the loading.
Subjects/Keywords: blade row interactions; particle image velocimetry; stator loading; vortex shedding; Mechanical Engineering
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APA (6th Edition):
Reynolds, S. B. (2010). Particle Image Velocimetry Analysis on the Effects of Stator Loading on Transonic Blade-Row Interactions. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3086&context=etd
Chicago Manual of Style (16th Edition):
Reynolds, Scott B. “Particle Image Velocimetry Analysis on the Effects of Stator Loading on Transonic Blade-Row Interactions.” 2010. Masters Thesis, Brigham Young University. Accessed April 12, 2021.
https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3086&context=etd.
MLA Handbook (7th Edition):
Reynolds, Scott B. “Particle Image Velocimetry Analysis on the Effects of Stator Loading on Transonic Blade-Row Interactions.” 2010. Web. 12 Apr 2021.
Vancouver:
Reynolds SB. Particle Image Velocimetry Analysis on the Effects of Stator Loading on Transonic Blade-Row Interactions. [Internet] [Masters thesis]. Brigham Young University; 2010. [cited 2021 Apr 12].
Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3086&context=etd.
Council of Science Editors:
Reynolds SB. Particle Image Velocimetry Analysis on the Effects of Stator Loading on Transonic Blade-Row Interactions. [Masters Thesis]. Brigham Young University; 2010. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3086&context=etd
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