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Thursday, July 29, 2021
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9:00 AM
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11:00 AM
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Physics Master of Science Thesis Defense - Emma Klinkhamer
- Location: Online
- Contact: > See Description for contact information
- Description: Physics Master of Science Thesis Defense by
Emma Klinkhamer
Date: Thursday, July 29, 2021
Time: 9:00 AM
Topic: Computational Methods in Electromagnetic Applications
Zoom Conference Link:
https://us05web.zoom.us/j/83126756712?pwd=TUtKNTRkRDc5QzZVN04xdW41czczdz09
Meeting ID: 831 2675 6712
Passcode: st7Nxr
Abstract:
Computational methods and algorithms are quickly becoming a necessity in science and engineering fields. These modeling techniques not only take the computational onus from the human brain, but can also provide visualizations for the problem at hand. This research delves into the facets of these computing processes, specifically at the intersection of electrostatic applications and iterative computational modeling. By first laying the groundwork for governing electrostatic equations, a general overview of surface charge distribution is discussed, and the need for accurate modeling techniques in this field is reviewed. Afterwards, some common algorithm types are analyzed, including finite element analysis and basic iterative computational structures. The heart of the thesis is devoted to merging a well-established surface charge distribution code with a Python based meshing algorithm to create a novel code meant for determining surface charge distribution and electric field in a realistic wire-like domain. Prior to going through this analysis, the Ruth Chabay and Bruce Sherwood surface charge distribution code is examined. Similarly, the Python based meshing package, called PyDistMesh, is explained. Finally, with these two software pillars thoroughly understood, the novelty and effectiveness of the combined code is assessed.
ADVISOR(S): Dr. Jianyi Wang, Department of Physics
(jwang@umassd.edu 508.999.9136
COMMITTEE MEMBERS: Dr. J.P. Hsu, Department of Physics
Rob Slimm, Electrical Engineering Manager - Sensata Technologies
- Topical Areas: Alumni, Faculty, Students, Students, Undergraduate, Bioengineering, Civil and Environmental Engineering, College of Engineering, Computer and Information Science, Co-op Program, Electrical and Computer Engineering, Mechanical Engineering, Physics
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2:00 PM
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3:00 PM
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Corsair Scholar Zoom Lab
- Location: > See description for location
- Cost: 0
- Contact: > See Description for contact information
- Description: Learn more about UMassD Scholarship opportunities
Thursdays through July 2 at 3 pm
Register in advance for this meeting:
https://umassd.zoom.us/meeting/register/tJUtcOGhrzIoHNEwyjManGLtj5pzg-bSb6AO
After registering, you will receive a confirmation email containing information about joining the meeting.
Contact Christine Mullen for more information
christine.mullen@umassd.edu
- Link: https://umassd.zoom.us/meeting/register/tJUtcOGhrzIoHNEwyjManGLtj5pzg-bSb6AO
- Topical Areas: Students, Students, Graduate, Students, Law, Students, Undergraduate, Financial Aid
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Marc St. Pierre: Black & White - Star Store Campus
- Location: > See description for location
- Cost: 0
- Contact: University Art Gallery
- Description: Marc St. Pierre: Black & White
Location: University Art Gallery, Star Store Campus, Downtown New Bedford, MA
Open through September 9, 2021
Reception: AHA! Night, Thursday, August 12, 6-8 pm
Gallery hours: Mon-Fri 9 am - 6 pm and until 9 pm during AHA! Nights (second Thursday of every month)
The University Art Gallery in New Bedford is proud to present Black & White, an exhibition by a beloved UMass Dartmouth professor, the late Marc St. Pierre (June 23, 1952 - December 2, 2019), featuring a selection of mixed media drawings and collage with encaustic, as well as black and white photography.
Drawings created between 2008 and 2012, layered geometric elements, and abstract forms create a rich and poignant experience filled with wonder and exploration. They took inspiration from the 'man-made', architectural plans, diagrams, and maps of early explorers. In his artist statement from 2012, Marc said,“As the drawing process evolves, organic shapes and gestural lines are introduced over the groundwork in transparent overlays. This provides a counterpoint to the precision associated with the geometry and acts as a multiple exposure in photography. This pictorial space becomes a dialog of random marks that combines the constructed with the unsystematic. My drawings intend to move the eye within an abstract and shallow picture plane in a gradual release of time.
The illusion of a 'deep space' in Marc's work, invites visitors into a complex, hazy, and multi-dimensional world of collage and encaustics that are presented in smaller formats in the exhibition. Describing his process in 2017, Marc wrote, "First, I use a variety of printmaking processes as a departure for recording marks, surfaces, and layers. This becomes a collage groundwork that allows me to invent the abstract equivalent of land patterns such as the meeting point of landmasses and water, for example. Secondly, additional layers of tracings from actual maps and topographic patterns are introduced. These drawings become a physical overlay suspended in translucent wax." Curiosity and the connection between the creative and scientific, as well as an equally strong interest in observing the tangible are also very much a part of Marc's pinhole camera work shown at Crapo Gallery.
After his retirement in 2017, Marc was often seen counting the time of his exposures while photographing various New Bedford locations. According to Gallery Director, Viera Levitt, "Marc would talk about taking his pinhole photographs, leaving for these expeditions from the Star Store Campus with a repurposed box readied with a small hole for capturing images directly on the photo paper. He enjoyed telling stories to his impromptu audiences including the building guard, about the random passers-by, observing his 'mysterious box' on the ground, ready to 'shoot'! It was indeed magic to see the one-of-a-kind monotypes he was able to capture with such simple, but skilled technique and his great patience for experimentation."
The exhibition is open through September 9 during the gallery hours Mon-Fri 9 am-6 pm and until 9 pm during AHA! Nights (the second Thursday of every month). The special reception is planned for Thursday, AHA! Night, August 12, from 6 to 8 pm.
More information about the exhibition, please visit
www.umassd.edu/cvpa/universityartgallery
For information about the Marc St. Pierre Memorial Scholarship, please visit giving.umassd.edu/stpierre.
Please Note:
Masks are encouraged, but not required for fully vaccinated individuals.
Please maintain a 6-foot distance from others.
Large bags, food, and beverages are not allowed in the gallery.
If you or a member of your party has or has had cold or flu-like symptoms, do not visit the gallery until after everyone is well and has completed a medically recommended quarantine period.
facebook.com/UMassDartmouthGalleries
instagram.com/UMassDartmouthGalleries
- Link: umassd.edu/cvpa/galleries
- Topical Areas: Alumni, Faculty, General Public, Staff and Administrators, Students, University Community, Art Education, Artisanry, College of Visual and Performing Arts, Fine Arts
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10:00 AM
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PhD Dissertation Defense-Dual Degree University of Sao Paulo and SMAST at UMass Dartmouth-Caue Lazaneo
- Location: > See description for location
- Contact: > See Description for contact information
- Description: The Oceanographic Institute of the University of Sao Paulo, Brazil
and
The School for Marine Science and Technology at the University of Massachusetts, Dartmouth, USA
PhD Dissertation Defense Announcement
"Mixing and Submesoscale Dynamics on the Western South Atlantic Ocean"
By
Caue Zirnberger Lazaneo
Advisors:
Prof. Ilson Carlos Almeida da Silveira (USP Advisor)
Prof. Amit Tandon (UMass Dartmouth Advisor)
Committee:
Prof. Joseph Harari (USP)
Prof. Daniel MacDonald (UMass Dartmouth)
Prof. Paulo Calil (Helmholtz-Zentrum Hereon)
Thursday, July 29, 2021
9:00 am (Eastern Standard Time)
Via Zoom
Abstract: This dissertation addresses two oceanic processes that result in the dissipation of turbulent kinetic energy in the western South Atlantic Ocean. In the first study, we investigate the role of the vertical shear generated by the flow reversal between the poleward-flowing Brazil Current and the equatorward-flowing Intermediate Western Boundary Current. From unprecedented measurements of microstructure in the region, we observe that the vertical shear at the interface between the two currents locally destabilizes the water column, and may overcome the stabilizing effect of stratification. Thus, mixing processes occur, resulting in property vertical exchanges at the base of the mixed layer. In the second study, we seek intrapycnoclinic, submesoscale coherent vortices (SCVs) in the VTR region from synoptic observations. We captured two anticyclonic SCVs embedded in a meander of the South Equatorial Current (SEC) from high-resolution measurements of temperature, salinity, and velocity. The SCVs were found in the lee of the Columbia Seamount. Through microstructure measurements taken in one of the SCVs, we observe turbulent kinetic energy dissipation rates similar in magnitude to those measured in the mixed layer. In the third study, we investigate whether the VTR is prone to generate submesoscale vortices. We then simulate, with a regional ocean numerical model, the SEC interacting with the ridge. We observe that this type of vortex is often formed in the region at different topographic features and different depths along its 900km extension. From the interaction between the SEC and the topographic features of the VTR, vortical filaments of Rossby number O(1) form downstream of the topography, creating potential vorticity anomalies. These filaments eventually evolve, roll up and form SCVs. We suggest that VTR can be considered a hotspot for the generation of submesoscale vortices.
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Join Zoom Meeting
https://umassd.zoom.us/j/92894955096?pwd=T1FXaGovSU5qazVqRHR4S0VsWmt5dz09
Meeting ID: 928 9495 5096
Passcode: 991062
For additional information, please contact Sue Silva at s1silva@umassd.edu
- Topical Areas: School for Marine Sciences and Technology, SMAST Seminar Series
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