Events

Interested in a career in business? Want to know more about potential careers in the field of business? Come network and speak with more than 65 organizations recruiting students for positions in the business fields. Learn more about internships and full-time positions from employers who are hiring. This fair is open to students from all majors and all years. The world of business is much larger than majors from only the Charlton College of Business. Other majors who may find opportunities at this fair include but are not limited to English, Psychology, Graphic Design, Economics, Mathematics. Dress professionally and come prepared with plenty of resumes. Registration is strongly encouraged but not required.

The Marketplace

Enjoy a breakfast buffet while having a casual conversation with professionals working at Dell Technology. The event will take place at the Crow's Nest in the MacLean Campus Center. Registration is required for this event.

Crow's Nest, MacLean Campus Center

Are you a student in the College of Nursing & Health Sciences? The Career Center invites you to join us to learn more about resources available to you and to launch your Handshake profile. Pop in and stay as long as your schedule permits! We'll have apple cider and doughnuts for treats!

Claire T. Carney Library, Room 122, Grand Reading Room

Are you a student in the Charlton College of Business? We invite you to join the Career Center to learn about resources available to you and to launch your Handshake account. Pop in and stay for as long as your schedule permits. We will have apple cider and donuts for you while you work!

Claire T. Carney Library, Room 122, Grand Reading Room

Join the Career Center and Enterprise in this lunch and learn session on interviewing. Hear from a professional recruiter on the best advise to have you acing your next interview!

MacLean Campus Center, Conference Room, Room 201

Interested in attending graduate school after you graduate from UMass Dartmouth? Hear from a panel of graduate admission representatives as they share all the tips and tricks to the application process. Topics will include admissions requirements, testing, GPA, and more! Registration is encouraged.

The Marketplace

Topic: Mitigating Interferer Motion with Universal Adaptive Beamformers Location: Lester W. Cory Conference Room, Science & Engineering Building (SENG), Room 213A Zoom Conference Link: https://umassd.zoom.us/j/92380705367 Meeting ID: 923 8070 5367 Passcode: 539575 Abstract: A signal received by a passive sonar may contain the desired signal, background noise, and moving or nonmoving interferers simultaneously. The beamformer processes observed narrowband signals to implement a spatial filter by selecting the desired signal from a specific location while eliminating loud interference and noise from other locations. One of the most common adaptive beamformers is the minimum variance distortionless response (MVDR) beamformer. The MVDR beamformer minimizes the output power of the array subject to a unity gain constraint in the direction of the desired signal. The MVDR beamformer obtains a minimized output power by placing sharp notches in the location of the interferers. MVDR is an optimal beamformer when a nonmoving interferer is present. However, close range, fast interferers move with a high bearing rate, transiting resolution cells faster and challenging MVDR's ability to place accurate notches in the actual direction of the interferer. Consequently, the MVDR notch location will always slightly lag the interferer's actual location, and the MVDR beamformer's ability to suppress the interferer degrades. Applying a flatter and broader notch near the interferer location is a more effective approach to dealing with the interferer motion. Many proposed notch widening approaches attenuate the interferers by placing a fixed large notch in the direction of the interferer. Choosing a larger notch width is a conservative approach to attenuate interferers but wastes degrees of freedom and reduces the white noise gain. A universal beamformer can be used to balance the trade-off between interferer suppression and white noise attenuation by saving degrees of freedom even in dynamic environments. The universal beamformer converges to the performance of the best beamformer in a set by choosing the blend weights so that the regret goes to zero asymptotically. This work will investigate the universal version of double zero, the covariance matrix tapers, and spatial subband processing to expand the width of the notch with fewer degrees of freedom and analyze their respective performance in interferer suppression and white noise gain. Advisor(s): Dr. John R. Buck, Chancellor Professor, Department of Electrical & Computer Engineering, UMASS Dartmouth Committee Members: Dr. David A. Brown, Professor, Department of Electrical & Computer Engineering, UMASS Dartmouth; Dr. Paul J. Gendron, Associate Professor, Department of Electrical & Computer Engineering, UMASS Dartmouth; Dr. Kay L. Gemba, Professor, Naval Postgraduate School NOTE: All ECE Graduate Students are ENCOURAGED to attend. All interested parties are invited to attend. Open to the public. *For further information, please contact Dr. John R. Buck at 508.999.9237 or via email at jbuck@umassd.edu.

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Applying to graduate school and need help with your personal statement? Joined by the UMassD Writing Center, the Career Center will take you through how to write an effective personal statement. This program is for students who are currently applying to or interested in graduate or professional school. This workshop will be hosted in LARTS 112. Registration is encouraged.

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EAS PhD Dissertation Defense by Danilo Zeppilli Date: October 12, 2023 Time: 10:00 a.m. Topic: The Behaviors of Problematic Crushable Marine Soils Location: SMAST West Room 204 Zoom Teleconference: https://umassd.zoom.us/j/98763304348?pwd=aFR2eEpQYTJTMnhIZkl4ZUpoRnRvdz09 Abstract: The United States is in the beginning stages of construction for wind farms down its eastern coast. From Maine to the Carolinas wind lease areas are being sold and construction is beginning. In areas of the future wind farms there are known deposits of two problematic soils: calcareous and glauconite soils. Calcareous soils are carbonate rich and created from the death or reproduction of marine micro- and macro-organisms while glauconite is a non-clastic sediment abundant in iron and potassium and formed at soil-water interfaces. Both soils are easily crushable and experience differences in their behavior dependent on their crushed state. Calcareous soils contain hollow sand sized particles and have different densities between their coarse and fine (75 um) particles. Glauconite has internal fractures and fissures that aid in the crushability of the soils. A probabilistic model using Weibull survivability statistic is created to study the differences in behavior between solid and hollow soil particles. The behaviors of solid and hollow soil are evident through void ratio and particle size distribution changes. This study shows that it is possible to weaken the soil during crushing due to an increase in the intraparticle void ratio. One-Dimensional compression tests aid in the understanding of crushability of calcareous and glauconite sands. Glauconite will experience different crushing behaviors than typical soils due to their highly fractured nature. When glauconite crushes the plasticity of the soil increases and the change in particle size distribution aids in the understanding of differences in behavior when soil is in its natural and crushed state. Since calcareous sand and fine-grained particles have different densities, their transitional fines content is higher than clastic silica sands. This is investigated by performing constant rate of strain compression tests to study the mechanical and hydraulic responses of a calcareous soil with varying fines contents. Through this work, the differences in behavior of easily crushable marine soils have been determined to better understand these unique and problematic soils and how to construct in them. ADVISOR(S): Dr. Ryan Beemer, Department of Civil & Environmental Engineering (rbeemer@umassd.edu) COMMITTEE MEMBERS: Dr. Daniel MacDonald, Department of Civil & Environmental Engineering Dr. Walaa Mogawer, Department of Civil & Environmental Engineering Dr. Cynthia Pilskaln, SMAST/Estuarine & Ocean Sciences Dr. Santiago Quinteros, Norwegian Geotechnical Institute NOTE: All EAS Students are ENCOURAGED to attend.

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Topic: ANALOG PHOTONIC SYSTEMS: FEATURES & TECHNIQUES TO OPTIMIZE PERFORMANCE Speaker: Dr. Edward Ackerman, VP Research & Development, Photonic Systems, Inc., Bedford, MA Location: Science & Engineering Building (SENG), Room 222 Abstract: Both the scientific and the defense communities wish to receive and process information occupying ever-wider portions of the electromagnetic spectrum. This can often create an analog-to-digital conversion "bottleneck". Analog photonic channelization, linearization, and frequency conversion systems can be designed to alleviate this bottleneck. Moreover, the low loss and dispersion of optical fiber and integrated optical waveguides enable most of the components in a broadband sensing or communication system, including all of the analog-to-digital and digital processing hardware, to be situated many feet or even miles from the antennas or other sensors with almost no performance penalty. The anticipated presentation will highlight the advantages and other features of analog photonic systems (including some specific systems that the author has constructed and tested for the Department of Defense), and will review and explain multiple techniques for optimizing their performance. Biography: Edward Ackerman received his B.S. degree in electrical engineering from Lafayette College in 1987 and his Ph.D. in electrical engineering from Drexel University in 1994. From 1989 through 1994 he was employed as a microwave photonics engineer at GE's Electronics Laboratory in Syracuse, New York. From 1995 to July 1999 he was a member of the Technical Staff at MIT Lincoln Laboratory. For both institutions he designed high-performance analog photonic links for microwave communications and antenna remoting applications. Since 1999 he has been Vice President of R & D for Photonic Systems, Inc. of Bedford, Massachusetts. Dr. Ackerman is a Fellow of the IEEE and was elected in 2019 to a three-year term as a Distinguished Microwave Lecturer for the IEEE's Microwave Theory and Technology Society. He has published more than 100 papers in peer-reviewed journals about microwave photonics technology and has been granted 22 US patents. The Seminars is open to the public free of charge. *For further information, please contact Dr. Yifei Li via email at yifei.li@umassd.edu.

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Come network and speak with more than 65 organizations recruiting students for Engineering & Technology positions. Learn more about internships and full-time positions from employers who are hiring. This fair is open to students from all years. Dress professionally and come prepared with plenty of resumes. Registration is strongly encouraged, but not required.

The Marketplace

Interested in a career in the health fields? Want to learn more about positions in clinical research? Come network with more than 65 organizations looking to hire students from healthcare, medical, and life science majors. Learn more about internships and full-time positions from employers who are hiring. This fair is open to students from all years. Dress professionally and come prepared with plenty of resumes. Registration is strongly encouraged, but not required.

The Marketplace