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Apr25
Denim Day 2018
For the past 19 years, Peace Over Violence has run its Denim Day campaign on a Wednesday in April in honor of sexual violence awareness month. Wear jeans in honor of the victim whose rape conviction was overturned because she was wearing jeans when she was raped. For more info http://denimdayinfo.org/
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Apr26
ECE Oral Comprehensive Exam for Doctoral Candidacy By: Bentolhoda Jafary
Topic: Reliability and Maintenance Modeling of Systems Subject to Positive and Negatively Correlated Component Failure Location: Lester W. Cory Conference Room, Science & Engineering Building (SENG), Room 213A ABSTRACT: A primary goal of maintenance is to minimize the consequences of component and system failures such as minimize cost and maximize availability. Two subcategories of maintenance actions include: preventive maintenance (PM) at predetermined time intervals prior to failure and emergency repair (ER) upon failure, where the cost and downtime of emergency repair is significantly greater than preventive maintenance. Traditional methods to model system reliability assume that the failures of the components comprising a system are statistically independent in order to simplify analysis. However, hundreds of empirical case studies have illustrated that component failures are often correlated. The independence assumption simplifies calculations, but is dangerous for safety critical systems that must be maintained because correlated failures can lower the mean time to failure, thereby increasing the probability that emergency repair will be required. Checkpointing is a technique to backup work at periodic intervals so that if computation fails it will not be necessary to restart from the beginning but will instead be able to restart from the latest checkpoint. Performing checkpointing operations requires time. Therefore, it is necessary to consider the tradeoff between the time to perform checkpointing operations and the time saved when computation restarts at a checkpoint. This proposal presents two contributions: (i) a method with an explicit correlation parameter to characterize the impact of correlated component failures on the optimal preventive maintenance interval of a system with arbitrary structure and (ii) a method to model the impact of correlated failures on a system that performs checkpointing. NOTE: All ECE Graduate Students are ENCOURAGED to attend. All interested parties are invited to attend. Open to the public. Advisor: Dr. Lance Fiondella Committee Members: Dr. Hong Liu and Dr. Liudong Xing, Department of Electrical & Computer Engineering, UMass Dartmouth; Dr. Donghui Yan, Department of Mathematics, UMass Dartmouth; Dr. Mark White, NASA Jet Propulsion Laboratory *For further information, please contact Dr. Lance Fiondella at 508.999.8596, or by via email at lfiondella@umassd.edu.
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Apr26
Drop-in Study Abroad Advising
Have a quick question for a study abroad advisor? Drop by the IPO (LARTS 016) Monday through Friday Noon-1:30. Students will be seen on a first-come, first-served basis.
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Apr26
Science Fiction Book Club meeting
Join the Science Fiction Book Club for our April meeting! We'll be discussing Sleeping Giants by Sylvain Neuvel. All are welcome! Questions? Contact Hilary Kraus at hkraus@umassd.edu Location: Claire T. Carney Library, Room 240
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Apr26
ECE ORAL COMPREHENSIVE EXAM FOR DOCTORAL CANDIDACY BY: Venkateswaran Shekar
Topic: Dynamic Transportation Network Vulnerability Assessment and Mitigation Location: Lester W. Cory Conference Room, Science & Engineering Building (SENG), Room 213A ABSTRACT: Transportation networks are critical to the social and economic function of nations. Given the continuing increase in the populations of cities throughout the world, the criticality of transportation infrastructure is expected to increase. Thus, it is ever more important to mitigate congestion as well as to assess the impact disruptions would have on individuals who depend on transportation for their work and livelihood. Most of the previous transportation network vulnerability research has been performed in the context of static traffic models, many of which are formulated as traditional optimization problems. However, transportation networks are dynamic because their usage varies over time. Thus, more appropriate methods to characterize the vulnerability of transportation networks should consider their dynamic properties. The two important prerequisites to build and test dynamic transportation network vulnerability assessment algorithms are (i) map extraction tools and (ii) an accurate network demand profile to test algorithms on these maps. This proposal describes the tools built to enable dynamic transportation network vulnerability assessment algorithms, including a discussion of the architecture of the software applications developed to extract maps and collect dynamic network demand data using a smartphone app. The proposal also presents a preliminary quantitative approach to assess the vulnerability of a transportation network to disruptions with methods from traffic simulation. Our approach can identify how link criticality varies over time and is generalizable to the case where both link and node disruptions are of concern. We illustrate the approach through a series of examples. Our results demonstrate that the approach provides quantitative insight into the time varying criticality of links. Such an approach could be used as the objective function of less traditional optimization methods that use simulation and other techniques to evaluate the relative utility of a particular network defense to reduce vulnerability and increase resilience. The open source nature of the tool allows us to systematically consider many disruption scenarios and quantitatively compare their relative criticality. This is far more efficient than traditional approaches which would require days or weeks of a transportation engineers time to manually set up, run, and assess these simulations. NOTE: All ECE Graduate Students are ENCOURAGED to attend. All interested parties are invited to attend. Open to the public. Advisor: Dr. Lance Fiondella Committee Members: Dr. Paul J. Fortier and Dr. Honggang Wang, Department of Electrical & Computer Engineering, UMass Dartmouth; Dr. Marguerite Zarrillo, Physics Department, UMass Dartmouth; Dr. Samrat Chatterjee, Pacific Northwest National Laboratory *For further information, please contact Dr. Lance Fiondella at 508.999.8596, or by via email at lfiondella@umassd.edu.
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Apr26
Introduction to Qualtrics
UMass Dartmouth has selected Qualtrics as our Internet survey tool. All Faculty and Staff have access to create and publish their own surveys. Students may also use Qualtrics under the direction of a Faculty or Staff member. This workshop covers the authoring and administration of surveys, as well as data collection. Question types are covered in detail, and survey logic is also included. No previous survey experience is necessary. Note that access to Qualtrics is managed by the Office of Institutional Research and Assessment. Please contact Jonathan Bonilla at JBonilla1@umassd.edu at least three business days prior to this workshop to request access. Students must have a Faculty or Staff advisor request access on their behalf. This workshop takes place in the Library, room 135. Contact Rich Legault for more information at 508-999-8799, or email RLegault@umassd.edu. Seating is limited, so please register today!
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Apr26
47th Annual Alumni Awards Ceremony
The Alumni Awards Ceremony celebrates the outstanding service and career accomplishments of UMass Dartmouth alumni. Join us as we honor the 2018 Alumni Award Recipients at a special ceremony and reception: Steven Martins '07 Alumni Volunteer Service Award Rachael E. Bonoan '13 Young Alumni Award Beth Knodler '00 Alumni Achievement Award Parking available in Lot 5. RSVP by Monday, April 23, 2018 at the link or call 508-999-8031.
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Apr26
Percussion and Steel Band Concert
Percussion and Steel Band Concert
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Apr27
Drop-in Study Abroad Advising
Have a quick question for a study abroad advisor? Drop by the IPO (LARTS 016) Monday through Friday Noon-1:30. Students will be seen on a first-come, first-served basis.
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Apr28
Noah Mangelson Junior Percussion Recital
Junior Percussion Recital
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Apr29
Catholic Mass
Catholic Mass is celebrated in the Blue and Gold Room of Campus Center
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Apr29
Senior Classical Voice Recital Ashley Roberts
Classical Voice Recital
