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Defenses

Dissertation Defense: Christa Pettie

Title: Modeling Syndromic Surveillance and Outbreaks in Subpopulations

Date: Monday, Dec. 16, 2019

Time: 12:00pm

Location: Martin Hall  EGR-2164

Committee Members:

Professor Jeffrey Herrmann

Professor Robert Gold
Assistant Professor Allison Reilly

Professor Linda Schmidt

Assistant Professor Monifa Vaughn-Cooke

Abstract:

This research is motivated by the need to assist resource limited communities by enhancing the use of syndromic surveillance (SyS) systems and data. Public health agencies and academic researchers have developed and implemented SyS systems as a pattern recognition tool to detect a potential disease outbreak using pre-diagnostic data. SyS systems collect data from multiple types of sources: absenteeism records, over the counter medicine sales, chief complaints, web queries, and more. It could be expensive, however, to gather data from every available source; subsequently, gathering information about only some subpopulations may be a desirable option. This raises questions about the differences between subpopulation behavior and which subpopulations’ data would give the earliest, most accurate warning of a disease outbreak.

To investigate the feasibility of using subpopulation data, this research will gather and organize SyS data by subpopulation (separated by population characteristics such as age or location) and identify how well the SyS data correlates to the real world disease progression. This research will study SyS how reports of Influenza-like-illness (ILI) in subpopulations represent the disease behavior. The first step of the research process is to understand how SyS is used in environments with varying levels of resources and what gaps are present in SyS modeling techniques. Various modeling techniques and applications are assessed, specifically the Susceptible Infected Recovered “SIR” model and associated modifications of that model. Through data analysis, well correlated subpopulations will be identified and compared to actual disease behavior and SyS data sets.  A model referred to as ModSySIR will be presented that uses real world community data ideal for ease of use and implementation in a resource limited community. The highest level research objective is to provide a potential data analysis method and modeling approach to inform decision making for health departments using SyS systems that rely on fewer resources.

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Defenses

Dissertation Defense: Jie Peng

Title: Phonon mediated thermal transport in transition-metal dichalcogenides

Date: Tuesday, Dec. 3rd, 2019

Time: 11:00am

Location: Martin Hall  EGR-2164

Committee Members:

Professor Peter Chung (Chair)

Professor Bao Yang

Professor Agis Iliadis (Dean’s Representative, Electrical and Computer Science Department)

Professor Abhijit Dasgupta

Professor Patrick McCluskey

Dr. Sina Najmaei (Special Member for the committee, ARL research scientist)

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Defenses

Dissertation Defense: Daniel Hart

Title: New Methodology for Predicting Ultimate Capacity of One-Sided Composite Patch Repaired Cracked Aluminum Plate
Date: Wednesday, Dec 11th, 2019
Time: 10:00am
Location: Martin Hall, EGR-2164
Committee:
Professor Hugh Bruck (Chair)
Professor Peter Chung
Professor Abhijit Dasgupta
Professor Teng Li
Professor Sung Lee (Dean’s Representative, Aerospace Department)

Abstract

Composite patch repairs are an alternative to traditional weld repair methods to address cracking in aluminum plates. Analytical and numerical design methods use linear elastic fracture mechanics (LEFM) that do not account for elastic-plastic crack tip behavior demonstrated in static tests of one-sided patch repaired ductile panels. This research used digital image correlation (DIC) and three-dimensional finite element analysis (FEA) with first order elements to study crack tip effects due to the one-sided composite patch applied to center crack tension (CCT) specimens loaded monotonically to failure. The measurable effects on crack tip behavior due to the composite patch were ultimate tensile load increase of more than 100% and a total achieved crack opening displacement (COD) increase of 20% over the unpatched behavior. Crack tip fracture behavior was found to be an intrinsic property of the aluminum and directly related to the COD independent of the one-sided composite patch. Increased capacity was related to accumulation of large-strain free surface area and through thickness volume ahead of the crack tip. Test data and numerical predictions correlated with measured load, strain, displacement fields, and J-integral behavior. Correlation of displacement fields with HRR and K fields established a state of small scale yielding prior to failure. Data and predictions indicated critical COD occurs when unpatched and patched large strain area is equivalent, which occurs before crack tip behavior transitions from small scale to large scale yielding and crack growth. Identifying a critical COD for both small and large scale one-sided patch repaired cracked ductile panels results in a predicted failure closer to the ultimate tensile load and 80% greater than predicted with LEFM methods.

Observations and predictions demonstrated in this research resulted in three scientific contributions: (1) development of criteria to determine crack growth in cracked ductile panels repaired with a one-sided composite patch using a critical COD, (2) development of a three-dimensional FEA to study development of the plastic zone and evolution of the large-strain region ahead of the crack tip, and (3) development of a numerical methodology to predict ultimate tensile load capacity of cracked ductile panels repaired with a one-sided composite patch

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Fellowships & Scholarships

Grad and Postgrad Opportunities at the U.S. Department of Energy

The DOE Scholars Program introduces students and recent college graduates to the U.S. Department of Energy (DOE) mission and operations.

Application Deadline: January 3, 2020 4:00 PM EST

Apply Now! https://www.zintellect.com/Opportunity/Details/DOE-Scholars-2020

Why should I apply?

Being selected as a DOE Scholar offers the following benefits:

  • Stipends starting at $600 per week for undergraduates and $650 per week for graduate students and post graduates during the internship period
  • Limited travel reimbursement to/from assigned location
  • Direct exposure to and participation in projects and activities in DOE mission-relevant research areas
  • Identification of career goals and opportunities
  • Development of professional networks with leading scientists and subject matter experts

Eligibility

  • Be a U.S. citizen
  • Be an undergraduate, graduate student, or recent graduate of an accredited institution of higher education majoring in science, technology, engineering, mathematics, and related areas.
  • Must be pursuing a degree or have received a degree within 5 years of their starting date in a science, technology, engineering or mathematics (STEM) discipline or have demonstrated interest or experience in a STEM field that supports the DOE mission.

Location

Hosting sites are located across the United States and will vary based on internship assignment.

How to Apply

Applications and supporting materials must be submitted at https://www.zintellect.com/Opportunity/Details/DOE-Scholars-2020

For more information: Visit https://orise.orau.gov/doescholars

Questions? doescholars@orise.orau.gov

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Defenses

Thesis Defense: Veeresh Ayyagari

Title: Design and Development of potassium formate based Atmospheric Water Harvester

Date: Monday, Nov. 25, 2019

Time: 1:30PM

Location: EGR-3164 Martin Hall (Aerospace conference room)

Committee Members: 

Dr. Jungho Kim, Chair

Dr. Yunho Hwang

Dr. Gary Pertmer

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Fellowships & Scholarships

LANL’s Science of Signatures Advanced Study Institute

Call for Applications

2020 Science of Signatures Advanced Studies Institute

Application deadline is January 8, 2020

Next spring, the Science of Signatures (SoS) Advanced Studies Institute (ASI) will be held over three weeks during April 13 – May 1, 2020. SoS-ASI is a professional development opportunity for advanced Ph.D. students and postdocs interested in learning skills needed for research program development at National Laboratories and academia.

The Los Alamos National Laboratory Engineering Institute invites a multi-disciplinary (e.g. computer science, engineering, biology, physics, earth sciences, mathematics/statistics) group of advanced, highly accomplished Ph.D. students and post-doctoral researchers for a three-week program to work on multi-disciplinary teams to generate novel, creative solutions to pressing national security problems and build the skills needed for successful research program development at national laboratories and in academia. This program will focus on introducing SoS-ASI Scholars to the process of writing winning proposals and securing research funding.

Prior participants in the program have become winners of the LANL Distinguished Postdoc award, multiple R&D 100 winners, an Achenbach medal winner, a nominee for the Horatio Alger Association Alumni of the Year award, and have gone on to win LANL Laboratory Directed Research and Development Early Career Awards and Presidential Early Career Awards in Science and Engineering. Multiple participants have gone on to assistant professor positions and numerous participants have achieved staff scientist and engineering positions at LANL.

Projects originating in the SoS-ASI have gone on to receive funding from a number of sources including the Weapons program, the Civilian Nuclear Programs Office, LDRD (multiple pathfinder calls), the Institute for Material Science, and the Department of State. Some of the projects have effectively led exploration into new technical areas of interest for LANL.

Past experience shows that the students who actually apply are ones that staff, faculty members, or former students have talked to individually regarding this program, so please take the time to talk about this opportunity. This program is limited to US Citizens or US Permanent Residents and is open to both LANL employees and non-LANL persons.

More information about the SoS-ASI and the application process can be found at http://asi.lanl.gov.  Please send questions to asi@lanl.gov or to David Mascareñas at dmascarenas@lanl.gov.

 

Chuck Farrar

Los Alamos National Laboratory Fellow

Engineering Institute Leader

MS T-001

Los Alamos National Laboratory

Los Alamos, NM 87545

Ph: 505-665-0860

Cell: 505-500-7302

farrar@lanl.gov

 

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Fellowships & Scholarships

Link Foundation Fellowships

The main goals of the Link Foundation Ocean Engineering and Instrumentation Ph.D. Fellowship are:

  • To foster ocean engineering and ocean instrumentation research
  • To enhance both the theoretical and practical knowledge and applications of ocean engineering and ocean instrumentation research, and
  • To disseminate the results of that research through lectures, seminars and publications.

The Link Foundation also offers fellowships in the areas of simulation training; and in the areas of energy production and utilization.

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Fellowships & Scholarships

Rice University -Academy of Fellows Application

Rice University aspires to pathbreaking research, unsurpassed teaching, and contributions to the betterment of our world. We seek to fulfill this mission by cultivating a diverse community of learning and discovery that produces leaders across the spectrum of human endeavor.

As part of a recently launched $150 million investment in research initiatives to advance this mission, Rice University is pleased to announce and invite applications for the Rice Academy Postdoctoral Fellows Program. The competition is open to all research areas.

The two-year Rice Academy Postdoctoral Fellowships are open to exceptional scholars who have recently earned the doctoral degree in any area and who want to pursue research with faculty at Rice University. Applications are particularly welcome from those who are interested in interdisciplinary approaches to scholarship. 

The next application cycle will open in November 2019 for a fellowship term starting on September 1, 2020. 

https://riceacademy.rice.edu/about

 

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Fellowships & Scholarships

Washington State University – Scholarships for Graduate Studies at the Institute for Shock Physics

Understanding Materials at Extreme Conditions

Graduate students from a range of disciplines (Physics, Chemistry, Materials Science, Mechanical Engineering, and Geo/Planetary Science) have a unique opportunity to study the response of materials at extreme conditions with the internationally renowned scientists at Washington State University (WSU).

Working within their respective academic departments, graduate students conduct their PhD research in the Institute for Shock Physics (ISP), which provides tremendous learning and research opportunities through:

  • Participation in innovative and multidisciplinary research
  • Professional growth through independent thinking and hands-on work
  • State-of-the-art experimental and computational facilities, including the Dynamic Compression Sector located at the Advanced Photon Source (Argonne, IL)
  • Partnerships with exceptional faculty at other academic institutions (Caltech, Princeton, and Stanford)
  • Access to the National Laboratories at Lawrence Livermore, Los Alamos, and Sandia

One of ISP’s principal accomplishments is well-educated and rigorously trained scientists who have moved on to successful professional careers and become leaders in the field.

Graduate scholar awards and scholarships are available for outstanding students.

For more information about the Graduate Studies Program at the Institute, visit: http://shock.wsu.edu/education/. For more information about ISP and DCS, visit: www.shock.wsu.edu or www.dcs-aps.wsu.edu.

For questions, please email shock@wsu.edu.

Institute for Shock Physics

Washington State University

509-335-5345

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Fellowships & Scholarships Jobs/Internships

Controls & Optimization Employment Opportunities GE Research

https://jobs.gecareers.com/global/en/job/3096705/Senior-Control-Systems-Research-Engineer