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DTSTART;TZID=America/New_York:20191121T120000
DTEND;TZID=America/New_York:20191121T130000
DTSTAMP:20260408T154203
CREATED:20191111T201454Z
LAST-MODIFIED:20191111T201454Z
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SUMMARY:BE Seminar: "Nanofluidic Technologies for Biomolecule Manipulation"
DESCRIPTION:In the last 20 years\, microfabrication techniques have allowed researchers to miniaturize tools for a plethora of bioanalytical applications.  In addition to better sensitivity\, accuracy and precision\, scaling down the size of bioanalytical tools has led to the exploitation of new technologies to further manipulate biomolecules in ways that has never before been achieved. For example\, when microfluidic channels are on the same order of magnitude of the electric double layers that form due to localized charge at the surfaces\, there exists unique physics that create different flow phenomenon\, such as analyte concentration and/or separation\, mainly due to the couples physics of electrostatics and fluid dynamics. This talk will outline the basis of such interesting phenomena\, such as nanofluidic  separation and concentration\, and well as probe the applications of such coupled systems\, for example\, handheld DNA detection. Most importantly\, we will focus on the most recent work in the Pennathur lab in this field —  biopolar electrode (BPE)-based phenomenon. Bipolar electrodes (BPE) have been studied in microfluidic systems over the past few decades\, and through rigorous experimentally-validated modeling of the rich combined physics of fluid dynamics\, electrokinetics\, and electrochemistry at BPEs\, I will show the potential of utilizing microfluidic-based BPEs for the design and development of low power\, accurate\, low volume fluid pumping mechanisms\, with the ultimate goal of integration into wearable drug delivery and µTAS systems.
URL:https://seasevents.nmsdev7.com/event/be-seminar-nanofluidic-technologies-for-biomolecule-manipulation/
LOCATION:PICS Conference Room 534 – A Wing \, 5th Floor\, 3401 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191121T104500
DTEND;TZID=America/New_York:20191121T114500
DTSTAMP:20260408T154203
CREATED:20191115T171050Z
LAST-MODIFIED:20191115T171050Z
UID:10006336-1574333100-1574336700@seasevents.nmsdev7.com
SUMMARY:MSE Seminar: "Exploring Photonic Materials with Symmetry and Topology"
DESCRIPTION:Symmetry and topology are fundamental notions existing in all kinds of natural systems\, from spiral galaxies and hurricanes to amino acids in molecules and non-trivial topologically protected electronic states in condensed matter. A stream of photons is typically topologically trivial\, nevertheless\, its full-vector nature intrinsically endows light with full capability of creating and carrying unique symmetry and topology\, especially non-Hermitian symmetries that cannot be easily implemented in condensed matter. Explorations of symmetry and topology on a photonic platform not only deepen our understanding of fundamental physics\, but also enable novel material properties to facilitate technological breakthroughs for photonic applications. In this seminar\, I will present our recent efforts on investigating the complex optical potentials with the non-Hermitian parity-time symmetry for the next generation of optical communication and information technology. We demonstrated an orbital angular momentum (OAM) microlaser that structures and twists the lasing radiation at the microscale\, which can provide an additional OAM-based information dimension to meet the growing demand for information capacity. By strategically interfacing non-Hermitian photonic materials and topological physics\, we realized the dynamic control of robust topological transmission links of light inside the bulk of a photonic topological insulator\, routing optical signals in a highly flexible and scalable manner.
URL:https://seasevents.nmsdev7.com/event/mse-seminar-exploring-photonic-materials-with-symmetry-and-topology/
LOCATION:Auditorium\, LRSM Building\, 3231 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Materials Science and Engineering":MAILTO:johnruss@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191120T150000
DTEND;TZID=America/New_York:20191120T160000
DTSTAMP:20260408T154203
CREATED:20190729T192818Z
LAST-MODIFIED:20190729T192818Z
UID:10006252-1574262000-1574265600@seasevents.nmsdev7.com
SUMMARY:CBE Seminar: "Soft\, Wet\, and Sticky: Viscous Forces and Elasticity in Wet Adhesion”
DESCRIPTION:Abstract: \nUnderstanding and harnessing the coupling between lubrication pressure\, elasticity\, and surface interactions provides materials design strategies for applications such as adhesives\, coatings\, microsensors\, and biomaterials. This presentation will discuss our efforts to understand how soft materials make contact and adhere under dynamic conditions in fluid environments. Measurements of interactions between soft surfaces will show how elastic films deform due to viscous forces and influence adhesion. In particular\, we will discuss conditions under which elasticity favors both dynamic and static adhesion in fluid environments. In the second part of the presentation\, we will show practical implications for adhesives on soft surfaces such as skin. More specifically\, we will discuss how the presence of water influences contact formation and the performance of adhesives. We will also show qualitative differences in debonding mechanism caused by the elasticity of the substrate.
URL:https://seasevents.nmsdev7.com/event/cbe-seminar-soft-wet-and-sticky-viscous-forces-and-elasticity-in-wet-adhesion/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191120T100000
DTEND;TZID=America/New_York:20191120T113000
DTSTAMP:20260408T154203
CREATED:20191113T160557Z
LAST-MODIFIED:20191113T160557Z
UID:10006333-1574244000-1574249400@seasevents.nmsdev7.com
SUMMARY:ESE Thesis Defense: Cassiano Becker
DESCRIPTION:Title: “Data-Driven Modeling\, Analysis and Design of Networked Dynamical Systems with Applications in Neuroscience” \nAbstract: In this thesis\, we provide contributions to the modeling\, analysis and design of networked dynamical systems from a data-driven perspective. Our approach is grounded on the integration of concepts and tools from graph theory\, control theory\, optimization\, and statistics. In particular\, we develop methodologies that can be applied to challenging\, high-dimensional problems where only partial or summarized information about the structure and function of a complex system is available. We validate our methods across different application domains\, most remarkably with large-scale neuroimaging datasets that follow state-of-the-art acquisition techniques and span multiple individuals and experimental paradigms. \nStructurally\, the contributions of this thesis have been divided in three parts. In the first part\, we address the topic of inference and analysis of complex networks. In particular\, we establish data-driven models and algorithms that approximate measures of functional connectivity\, derived from a system’s potentially complex dynamics\, as a matrix mapping based on structural connectivity information. Using tools from spectral graph theory\, we propose a mapping technique that is able to systematically account for the role of indirect structural walks in the generation of functional associations. We then apply our method to obtain accurate structural-to-functional connectivity mappings for brain networks derived from functional magnetic resonance (fMRI) and diffusion imaging measurements\, and perform a series of analyses of the generated mappings in terms of their spectral characteristics. \nIn the second part\, we devote our attention to the problem of identification of system dynamics. First\, we generate data-driven dynamic models that capture the influence of cognitive inputs on brain signals that are observed through fMRI measurements. More specifically\, we extend subspace system identification methods to create large-scale\, linear time-invariant representations for both single and multiple-individual configurations of a motor task-fMRI experiment\, and apply control-theoretic tools to analyze the dynamical characteristics of the resulting models. Subsequently\, to abate some general limitations of linear time-invariant models\, we propose three novel system identification approaches. Specifically\, we (i) enable the identification of state-space linear time-varying models through a generalized expectation maximization method\, (ii) perform the estimation of linear parameter-varying models having a latent parameter space via Bayesian variational inference\, and (iii) implement blind subspace identification using Riemannian optimization. \nIn the last part of the thesis\, we focus on the topic of network design for dynamic performance. More specifically\, we address the problem of finding edge weights of a linear networked dynamical system such that certain bounds on its controllability metrics are satisfied. In particular\, we consider the worst-case (i.e.\, minimum eigenvalue of the controllability Gramian) and average-case (i.e.\, trace of the inverse controllability Gramian) metrics. Algorithmically\, we provide a principled convex relaxation approach that exhibits guaranteed convergence and known global optimal value. Our methodology includes the possibility to consider cost functions over the edge weights which can be used\, for example\, to promote solutions with higher sparsity in the required edge modifications. Finally\, we verify our results with numerical simulations over many random network realizations\, and with multi-agent and power system topologies. \nAdvisor:\nVictor M. Preciado\, Associate Professor of Electrical and System Engineering\nGraduate Chair of Electrical and System Engineering\nDepartment of Electrical and Systems Engineering\nDepartment of Applied Mathematics and Computational Science\nUniversity of Pennsylvania \nCommittee:\nGeorge J. Pappas (chair)\, Full Professor and Department Chair\nDepartment of Electrical and Systems Engineering\, Department of Computer and Information Sciences\, Department of Mechanical Engineering and Applied Mechanics\nUniversity of Pennsylvania \nDanielle S. Bassett (member)\, J. Peter Skirkanich Professor\nDepartment of Bioengineering\, Department of Electrical and Systems Engineering Department of Physics and Astronomy\, Department of Neurology\, Department of Psychiatry\nUniversity of Pennsylvania \nSergio Pequito (member)\, Assistant Professor\nDepartment of Industrial and Systems Engineering\nDepartment of Electrical\, Computer\, and Systems Engineering\nRensselaer Polytechnic Institute
URL:https://seasevents.nmsdev7.com/event/ese-thesis-defense-cassiano-becker/
LOCATION:Room 307\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191119T160000
DTEND;TZID=America/New_York:20191119T180000
DTSTAMP:20260408T154203
CREATED:20191115T164621Z
LAST-MODIFIED:20191115T164621Z
UID:10006335-1574179200-1574186400@seasevents.nmsdev7.com
SUMMARY:ESE Dissertation Defense: David Q. Sun
DESCRIPTION:Title: “Understanding Coalition Dynamics in Multiparty Conflicts: An Agent-Based Approach with Multi-Objective Spatial Model” \nAbstract: Through this research\, we explore the dynamics of coalition formation in multi-agent competitive games where each agent has its unique characteristics. We do so by constructing an abstract formal model\, and a more complex agent-based model. In the broader context of multiparty competitive games (which are closely related to civil wars)\, we make several critical assumptions regarding the motivations for coalition formation (and dis-integration) and view coalitions as an outcome of rational\, utilitarian choices made by the agents. Accordingly\, we investigate two specific types of such problems. The first problem is the existence and characteristics of the stable states. We investigate when such stable states are viable\, and potential path dependency on initial states. The second problem is the influence of certain changes in agent properties (objective position in Euclidean space\, normalized power size\, etc.) on the dynamics of coalition formations. In particular\, we are interested in learning how such characteristics influence the evolution surrounding stable states. \nWe approach the problems using two set of methods. First\, we present a formal\, mathematical model inspired by theories from non-cooperative games and the legislative coalition formations\, to explore the existence and characteristics of the stable states. Later\, we develop an agent-based counterpart that extends the formal model. We leverage computational modeling to explore the system dynamics at scale. The findings on the characteristics of coalition dynamics model are further validated through both statistical analysis and empirical case studies\, where we also compare the model predictions with those from alternative coalition theories from relevant fields. \nCommittee Members:  \nProf. Tony E. Smith (Chair) Professor of Electrical and Systems Engineering\, University of Pennsylvania \nBarry G. Silverman (Advisor) Professor of Electrical and Systems Engineering\, University of Pennsylvania \nSteven O. Kimbrough (Reader) Professor of Operations\, Information and Decisions\, Wharton School\, University of Pennsylvania \nDr. Alexander Kalloniatis (External Reader) Defense Science and Technology Organisation\, Australian Department of Defense
URL:https://seasevents.nmsdev7.com/event/ese-dissertation-defense-david-q-sun/
LOCATION:Room 307\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191119T150000
DTEND;TZID=America/New_York:20191119T160000
DTSTAMP:20260408T154203
CREATED:20191111T144811Z
LAST-MODIFIED:20191111T144811Z
UID:10006331-1574175600-1574179200@seasevents.nmsdev7.com
SUMMARY:CIS Seminar: "Reducing Errors in Quantum Computation via Program Transformation"
DESCRIPTION:Abstract:  \nQuantum computing promises exponential speedups for an important class of problems. While quantum computers with few dozens of qubits have been demonstrated\, these machines suffer from high rate of gate errors. Such machines are operated in the Noisy Intermediate Scale Quantum (NISQ) mode of computing where the output of the machine can be erroneous. In this talk\, I will discuss some of our recent work that aims to improve the reliability of NISQ computers by developing software techniques to mitigate the hardware errors. Our first= work (ASPLOS 2019) exploits the variability in the error rates of qubits to steer more operations towards qubits with lower error rates and avoid qubits that are error-prone. Our second work (MICRO 2019) looks at executing different versions of the programs each crafted to cause diverse mistakes so that the machine becomes less vulnerable to correlated errors. Our third work (MICRO 2019) looks at exploiting the state-dependent bias in measurement errors (state 1 is more error prone than state 0) and dynamically flips the state of the qubit to perform the measurement in the stronger state. We perform our evaluations on real quantum machines from IBM and demonstrate significant improvement in the overall system reliability. If time permits\, I will also briefly discuss the hardware aspect of designing quantum computers\, including cryogenic processor and cryogenic memory system.
URL:https://seasevents.nmsdev7.com/event/cis-seminar-reducing-errors-in-quantum-computation-via-program-transformation/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191119T110000
DTEND;TZID=America/New_York:20191119T120000
DTSTAMP:20260408T154203
CREATED:20190918T164828Z
LAST-MODIFIED:20190918T164828Z
UID:10006289-1574161200-1574164800@seasevents.nmsdev7.com
SUMMARY:ESE Seminar: "Enabling the SmartGrid with IoT Sensors and Edge-Cloud Analytics"
DESCRIPTION:Abstract: Wireless sensors and edge-cloud analytics have the potential to gather and process vast amounts of data about the physical world\, offering radical new insights about everything from critical infrastructure to interpersonal interactions. But designing\, deploying\, and operating geographically-distributed systems consisting a hierarchy of sensing\, storage\, compute\, and communication elements raises interesting new challenges across the system stack. In this talk\, we will discuss our experiences designing new IoT systems to address several power and power grid monitoring problems. In particular\, this talk will focus on three systems—PowerBlade\, Triumvi\, and GridWatch—and their motivation\, design\, and deployment. PowerBlade explores how to cost-effectively characterize\, capture\, and classify widespread plug-load energy usage—representing the fastest growing and least understood segment of end-use energy consumption—across hundreds of homes and offices representing tens of thousands of sensors.\nTriumvi explores how to make circuit level energy metering\, useful for a variety of facilities trending\, energy savings\, and fault detection & diagnostics applications\, more efficient and scalable. Finally\, GridWatch explores how to scalably and cost-effectively detect and respond to the power outages that stymie residential and business activity in under-developed power grids using mobile and fixed sensors\, data analytics\, and reporting systems in Sub-Saharan Africa\, finding that conventional approaches to outage detection systems vastly underreport customer experiences. These systems all share a similar architecture\, require new sensor devices and edge-cloud data processing\, and wrestle with power management and networking. But they ultimately demonstrate both the tremendous potential and the significant challenges of this nascent computing class.
URL:https://seasevents.nmsdev7.com/event/ese-seminar-enabling-the-smartgrid-with-iot-sensors-and-edge-cloud-analytics/
LOCATION:PICS Conference Room 534 – A Wing \, 5th Floor\, 3401 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191119T103000
DTEND;TZID=America/New_York:20191119T120000
DTSTAMP:20260408T154203
CREATED:20190927T174931Z
LAST-MODIFIED:20190927T174931Z
UID:10006304-1574159400-1574164800@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Origami Micro\, Bio\, and Nanosystems "
DESCRIPTION:Due to the inherent planarity of conventional micro and nanofabrication\, it is challenging to pattern and assemble micro\, bio\, and nano-materials and devices in all three dimensions. Origami inspired mechanical assembly by curving\, bending\, and folding of appropriately designed micro and nanopatterned precursors provides a high-throughput solution to address this challenge.\nIn this talk\, I will discuss how the engineering of thin film differential-stress\, capillary forces\, and swelling can be used to mechanically shape materials and devices in 3D. I will discuss geometric design principles\, mechanics considerations\, fabrication processes\, and applications of 3D micro\, bio and nanosystems that have been assembled by curving\, bending\, and folding. Examples include capillary-force assisted self-folding of micro/nanoscale polyhedra with lithographically patterned surfaces\, thermoresponsive bending and folding of atomically thin materials such as graphene and MoS2\, optical and electrical shell sensors assembled using differential stress and thermobiochemically stimuli responsive shape-shifting hydrogels and microgrippers for drug delivery\, tissue engineering\, and surgery.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-origami-micro-bio-and-nanosystems/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191118T120000
DTEND;TZID=America/New_York:20191118T130000
DTSTAMP:20260408T154203
CREATED:20190919T184656Z
LAST-MODIFIED:20190919T184656Z
UID:10006295-1574078400-1574082000@seasevents.nmsdev7.com
SUMMARY:PSOC Seminar : "Molecular microscopy without labels: Seeing the chemistry in biomedical  science"
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/psoc-seminar-molecular-microscopy-without-labels-seeing-the-chemistry-in-biomedical-science/
LOCATION:Room 337\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="PSOC":MAILTO:manu@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191114T150000
DTEND;TZID=America/New_York:20191114T160000
DTSTAMP:20260408T154203
CREATED:20191105T145928Z
LAST-MODIFIED:20191105T145928Z
UID:10006329-1573743600-1573747200@seasevents.nmsdev7.com
SUMMARY:CIS: Grace Hopper Distinguished Lecture: "A 2020 Vision of U.S. Election Security"
DESCRIPTION:Abstract: \nDespite the provision of a $380M federal grant to enhance technology and improve security in the 2018 midterm elections\, machine failures and computer malfunctions again plagued polling places (in GA\, PA\, NY\, IN\, TX\, and MA)\, resulting in late openings\, long lines\, and turned-away voters. Poor ballot layouts resurfaced in Florida\, resulting in nearly 25\,000 missed votes and the removal of the Broward County Supervisor of Elections\, due to “misfeasance\, incompetence and neglect of duty.” Many of the unauditable electronic voting machines are now being replaced with paper ballots and scanners\, but creative State legislation (including in FL\, MI and CA) and new tactics (such as risk-limiting audits) are increasingly being used to thwart and prohibit comprehensive recounts\, even when results fall within the range of equipment error. This talk examines some of the shenanigans that we may be looking forward to seeing in 2020\, sheds light on the reasons why contrived (and even avoidable) disenfranchisement continues to play a fundamental role in American Democracy\, and offers some suggestions for improvement.
URL:https://seasevents.nmsdev7.com/event/cis-grace-hopper-distinguished-lecture-a-2020-vision-of-u-s-election-security/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191114T104500
DTEND;TZID=America/New_York:20191114T114500
DTSTAMP:20260408T154203
CREATED:20191101T152211Z
LAST-MODIFIED:20191101T152211Z
UID:10006327-1573728300-1573731900@seasevents.nmsdev7.com
SUMMARY:MSE Seminar: “How Do You Make a Micro-Robot?”
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/mse-seminar-how-do-you-make-a-micro-robot/
LOCATION:Auditorium\, LRSM Building\, 3231 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Materials Science and Engineering":MAILTO:johnruss@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191112T150000
DTEND;TZID=America/New_York:20191112T160000
DTSTAMP:20260408T154203
CREATED:20191105T145249Z
LAST-MODIFIED:20191105T145249Z
UID:10006328-1573570800-1573574400@seasevents.nmsdev7.com
SUMMARY:CIS Seminar: "Achieving CSforALL through the Beauty and Joy of Computing (BJC)"
DESCRIPTION:Abstract:  \nAt a time when computing is so much a part of all of our lives\, has incredible job opportunities\, and is so empowering\, most students graduate high school without having had any introduction to computer science. A decade ago in the United States\, the CSforALL movement was launched to broaden participation in computing to those traditionally underrepresented. This talk will reflect on the current state of that initiative\, and introduce the “Beauty and Joy of Computing (BJC)” course\, which has received worldwide attention and currently has 65% female enrolment at UC Berkeley\, among the highest in the nation.
URL:https://seasevents.nmsdev7.com/event/cis-seminar-achieving-csforall-through-the-beauty-and-joy-of-computing-bjc/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191111T120000
DTEND;TZID=America/New_York:20191111T130000
DTSTAMP:20260408T154203
CREATED:20191028T151920Z
LAST-MODIFIED:20191028T151920Z
UID:10006325-1573473600-1573477200@seasevents.nmsdev7.com
SUMMARY:MEAM Doctoral Dissertation Defense: "High-Dimensional Design Evaluations for Self-Aligning Geometries"
DESCRIPTION:Physical connectors with self-aligning geometry aid in the docking process for many robotic and automatic control systems such as robotic self-reconfiguration and air-to-air refueling. This self-aligning geometry provides a wider range of acceptable error tolerance in relative pose between the two rigid objects\, increasing successful docking chances. In a broader context\, mechanical alignment properties are also useful for other cases such as foot placement and stability\, grasping or manipulation. Previously\, computational limitations and costly algorithms prevented high-dimensional analysis. The algorithms presented in this talk will show a reduced computational time and improved resolution for this kind of problem. \nThis dissertation will review multiple methods for evaluating modular robot connector geometries as a case study in determining alignment properties. Several metrics are introduced in terms of the robustness of the alignment to errors across the full dimensional range of possible offsets. Algorithms for quantifying error robustness will be introduced and compared in terms of accuracy\, reliability\, and computational cost. Connector robustness is then compared across multiple design parameters to find trends in alignment behavior. Methods developed and compared include direct simulation and contact space analysis algorithms (geometric by a ‘pre-partitioning’ method\, and discrete by flooding). Experimental verification for certain subsets is also performed to confirm the results. By evaluating connectors using these algorithms we obtain concrete metric values. We can then quantitatively compare their alignment capabilities in either SE(2) or SE(3) under a pseudo-static assumption.
URL:https://seasevents.nmsdev7.com/event/meam-doctoral-dissertation-defense-high-dimensional-design-evaluations-for-self-aligning-geometries/
LOCATION:Room 3W2\, David Rittenhouse Lab\, 209 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Dissertation or Thesis Defense
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191111T120000
DTEND;TZID=America/New_York:20191111T130000
DTSTAMP:20260408T154203
CREATED:20190919T184225Z
LAST-MODIFIED:20190919T184225Z
UID:10006294-1573473600-1573477200@seasevents.nmsdev7.com
SUMMARY:PSOC Seminar : " Coordination between fast migrating tumor cells and their microenvironment mediates melanoma metastasis"
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/psoc-seminar-xiolin-nan-phd/
LOCATION:Room 337\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191108T140000
DTEND;TZID=America/New_York:20191108T150000
DTSTAMP:20260408T154203
CREATED:20190923T140853Z
LAST-MODIFIED:20190923T140853Z
UID:10006297-1573221600-1573225200@seasevents.nmsdev7.com
SUMMARY:PICS Seminar: "Mathematical Modeling of Thrombin-Fibrin Binding Dynamics"
DESCRIPTION:Abstract: Blood clot formation involves the coupled processes of platelet aggregation and coagulation\, which are triggered when there is break in a blood vessel. Platelet aggregation is largely a physical process while coagulation is biochemical\, consisting of a large network of reactions that culminate in the generation of the enzyme thrombin. Thrombin cleaves fibrinogen into fibrin\, which polymerizes into fibers to form a stabilizing gel matrix in and around growing platelet aggregates. Thrombin also (re)binds directly to fibrin but this interaction\, and its purpose\, is not fully understood. Thrombin-fibrin binding is often described as two independent\, single-step binding events\, one high-affinity and one low-affinity\, each through a different exosite on thrombin. However\, kinetic schemes describing these single-step binding events with reported kinetic rate constants cannot explain experimentally-observed residency times of fibrin-bound thrombin. In this work\, we study a bivalent\, sequential-step binding scheme as an alternative to the high-affinity event\, and in addition to the low-affinity one. We developed mathematical models for the single- and sequential-step schemes consisting of reaction-diffusion equations to compare to each other and to previously published experimental data. We then used Bayesian inference\, in the form of Markov Chain Monte Carlo\, to learn model parameter distributions from the experimental data. For the model to best fit the data\, we needed an additional assumption that thrombin was irreversibly sequestered; we hypothesized that this could be due to thrombin becoming physically trapped within fibrin fibers as they formed. We also discuss how our model can be used to further probe scenarios dealing with thrombin allostery.
URL:https://seasevents.nmsdev7.com/event/pics-seminar-mathematical-modeling-of-thrombin-fibrin-binding-dynamics/
LOCATION:PICS Conference Room 534 – A Wing \, 5th Floor\, 3401 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Penn Institute for Computational Science (PICS)":MAILTO:dkparks@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191107T104500
DTEND;TZID=America/New_York:20191107T114500
DTSTAMP:20260408T154203
CREATED:20191028T143224Z
LAST-MODIFIED:20191028T143224Z
UID:10006324-1573123500-1573127100@seasevents.nmsdev7.com
SUMMARY:MSE Seminar: "Why Industrial Research Is Critical: A Brief History in the 20th and 21st Centuries"
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/mse-seminar-why-industrial-research-is-critical-a-brief-history-in-the-20th-and-21st-centuries/
LOCATION:Auditorium\, LRSM Building\, 3231 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Materials Science and Engineering":MAILTO:johnruss@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191106T153000
DTEND;TZID=America/New_York:20191106T163000
DTSTAMP:20260408T154203
CREATED:20191004T184556Z
LAST-MODIFIED:20191004T184556Z
UID:10006310-1573054200-1573057800@seasevents.nmsdev7.com
SUMMARY:Herman P. Schwan Distinguished Lecture: "Engineering human tissues for medical impact"
DESCRIPTION:The classical paradigm of tissue engineering involves the integrated use of human stem cells\, biomaterial scaffolds (providing a structural and logistic template for tissue formation) and bioreactors (providing environmental control\, dynamic sequences of molecular and physical signaling\, and insights into the structure and function of the forming tissues). This “biomimetic” approach results in an increasingly successful representation of the environmental milieu of tissue development\, regeneration and disease. Living human tissues are now being engineered from various types of human stem cells\, and tailored to the patient and the condition being treated. A reverse paradigm is now emerging with the development of the “organs on a chip” platforms for modeling of integrated human physiology\, using micro-tissues that are derived from human iPS cells and functionally connected by vascular perfusion. In all cases\, the critical questions relate to our ability to recapitulate the cell niches\, using bioengineering tools. To illustrate the state of the art in the field and reflect on the current challenges and opportunities\, this talk will discuss: (i) anatomically correct bone regeneration\, (ii) bioengineering of the lung\, (iii) heart repair by a cell-free therapy\, and (iv) the use of “organs on a chip” for patient-specific studies of human physiology\, injury\, healing and disease. \nFunding: NIH\, NSF\, New York State\, Mikati Foundation\, Schwartz Foundation \nCatered reception to follow.
URL:https://seasevents.nmsdev7.com/event/schwan-lecture-engineering-human-tissues-for-medical-impact/
LOCATION:Glandt Forum\, Singh Center for Nanotechnology\, 3205 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Distinguished Lecture
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191106T150000
DTEND;TZID=America/New_York:20191106T160000
DTSTAMP:20260408T154203
CREATED:20190729T192322Z
LAST-MODIFIED:20190729T192322Z
UID:10006251-1573052400-1573056000@seasevents.nmsdev7.com
SUMMARY:CBE Seminar: "Tailoring Processes and Assembly of Nanomaterials for Electrochemical Energy Storage”
DESCRIPTION:Abstract: \nDespite their promise to mitigate many problems and offer new opportunities in energy storage systems\, nanomaterials have proven to be difficult to tailor and preserve their assembly throughout manufacturing processes when a scale-up is considered. My group has been working on understanding and modification of instability-driven processes to devise scalable manufacturing processes such as gas-assisted electrospinning and air-controlled electrospray\, which can also provide the tailored assembly of nanomaterials. I will show several examples of using these processes to assemble various nanomaterials in the development of next generation battery materials\, including: 1) thermally stable\, non-flammable polymer/ceramic hybrid separator and high capacity silicon/graphene anode for high performance Li-ion batteries; and 2) graphene coated separator and highly loaded\, layered sulfur/graphene cathode for high rate Li-sulfur batteries.
URL:https://seasevents.nmsdev7.com/event/cbe-seminar-tailoring-processes-and-assembly-of-nanomaterials-for-electrochemical-energy-storage/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191105T150000
DTEND;TZID=America/New_York:20191105T160000
DTSTAMP:20260408T154203
CREATED:20191029T152743Z
LAST-MODIFIED:20191029T152743Z
UID:10006326-1572966000-1572969600@seasevents.nmsdev7.com
SUMMARY:CIS Seminar: "Contesting Secure Development to Understand Security Mistakes"
DESCRIPTION:Abstract:  \nWith the ongoing\, frequent disclosure of the existence and exploitation of security vulnerabilities\, one might wonder: How can we can build software that is more secure? In an attempt to focus educational attention on this question\, and gather empirical evidence at the same time\, we developed the Build it\, Break it\, Fix it (BIBIFI) security-oriented programming contest. In BIBIFI\, teams aim to build specified software that should be correct\, efficient\, and secure. These goals mimic those of the real world. Security is tested when teams attempt to break other teams’ submissions. Winners are chosen from among the best builders and the best breakers. BIBIFI was designed to be open-ended — teams can use any language\, tool\, process\, etc. that they like.\n\nWe ran three 6-week contests involving a total of 156 teams from across the world\, and three different programming problems. Most participants had previous development experience and security education. Quantitative analysis from these contests found several interesting trends. For example\, the most efficient build-it submissions used C/C++\, but submissions coded in a statically-type safe language were 11× less likely to have a security flaw than C/C++ submissions. A manual\, in-depth qualitative analysis (using iterative open coding) of the vulnerabilities in 76 of these projects also revealed interesting trends. For example\, the analysis found that simple mistakes were least common: only 26% of projects introduced such an error. Conversely\, vulnerabilities arising from a misunderstanding of security concepts were significantly more common: 84% of projects introduced at least one such error. Overall\, our results have implications for improving secure-programming language choices\, API designs\, API documentation\, vulnerability-finding tools\, and security education.\n\nThis is joint work with James Parker\, Andrew Ruef\, Dan Votipka\, Kelsey Fulton\, Matthew Hou\, Michelle Mazurek\, and Dave Levin\, all at the University of Maryland
URL:https://seasevents.nmsdev7.com/event/cis-seminar-contesting-secure-development-to-understand-security-mistakes/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191105T110000
DTEND;TZID=America/New_York:20191105T120000
DTSTAMP:20260408T154203
CREATED:20190806T152650Z
LAST-MODIFIED:20190806T152650Z
UID:10006261-1572951600-1572955200@seasevents.nmsdev7.com
SUMMARY:ESE Seminar: "Metasurface Computational Imaging"
DESCRIPTION:Modern image sensors consist of systems of cascaded and bulky spherical optics for imaging with minimal aberrations. While these systems provide high-quality images\, the improved functionality comes at the cost of increased size and weight. One route to reduce a system’s complexity is via computational imaging\, in which much of the aberration correction and functionality of the optical hardware is shifted to post-processing in the software realm. Alternatively\, a designer could miniaturize the optics by replacing them with diffractive optical elements\, which mimic the functionality of refractive systems in a more compact form factor. Metasurfaces are an extreme example of such diffractive elements\, in which quasiperiodic arrays of resonant subwavelength optical antennas impart spatially-varying changes on a wavefront. While separately both computational imaging and metasurfaces are promising avenues toward simplifying optical systems\, a synergistic combination of these fields can further enhance system performance and facilitate advanced capabilities. In this talk\, I will present a method to combine these two techniques to perform full-color imaging across the whole visible spectrum [1]. I will also discuss the use of computational techniques to design new metasurfaces [2]\, and using metasurfaces to perform computation on wavefronts\, with applications in optical information processing and sensing. \n \nFigure: (a) Hybrid cubic-quadratic metasurface; (b) Using the metasurface and computational imaging we demonstrated full-color imaging; (c) We developed inverse design methodologies for metasurfaces made of dielectric spheres. \nReferences: [1] S. Colburn\, A. Zhan\, and A. Majumdar\, “Metasurface optics for full-color computational imaging\,” Science Advances\, vol. 4\, 2018. [2] A. Zhan\, T. K. Fryett\, S. Colburn\, and A. Majumdar\, “Inverse design of optical elements based on arrays of dielectric spheres\,” Applied Optics\, vol. 57\, pp. 1437-1446\, 2018/02/20 2018.
URL:https://seasevents.nmsdev7.com/event/ese-seminar-arka-majumdar/
LOCATION:PICS Conference Room 534 – A Wing \, 5th Floor\, 3401 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191105T103000
DTEND;TZID=America/New_York:20191105T120000
DTSTAMP:20260408T154203
CREATED:20191014T183451Z
LAST-MODIFIED:20191014T183451Z
UID:10006316-1572949800-1572955200@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Multi-Stable Morphing Structures"
DESCRIPTION:Variable geometry “morphing” structures can achieve different geometric configurations through overall deformation\, but usually many actuators are required for shape control. In this talk we consider a particular type of morphing structure that is able to switch configuration with only a few actuators. It is based on the concept of embedding by design local energy minima in the configuration space of the structure. A general bar and plate structure connected by frictionless hinges can be made locally stable in a set of chosen target configurations by attaching extensional and rotational springs to the structure. The unstressed lengths and angles of the springs\, as well as their stiffnesses\, are the design parameters. We present a general theory to formulate the required equilibrium and stability conditions. Solutions of these equations provide specific values of the spring properties that correspond to local energy minima in all of the target configurations. Applications to reconfigurable antennas are also presented.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-multi-stable-morphing-structures/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191101T140000
DTEND;TZID=America/New_York:20191101T150000
DTSTAMP:20260408T154203
CREATED:20190909T184651Z
LAST-MODIFIED:20190909T184651Z
UID:10006282-1572616800-1572620400@seasevents.nmsdev7.com
SUMMARY:PICS Seminar: "High-order Spectral Difference Method for Studying Marine Hydrodynamics and Thermal Convection and Magneto-hydrodynamics for the Sun"
DESCRIPTION:Abstract\nTwo recent advancements of high-order spectral difference (SD) method for computational fluid dynamics on unstructured meshes will be presented. The first progress is our contribution to a new curved sliding-mesh approach to the SD method for simulating flapping and rotary wing aerodynamics.  The second elevation of the SD method is our recent successful design of a massively parallel code\, namely CHORUS\, for predicting thermal convection in the Sun.  Recently\, we have also built a simulation capability for predicting magnetohydrodynamics of the Sun.
URL:https://seasevents.nmsdev7.com/event/pics-seminar-high-order-spectral-difference-method-for-studying-marine-hydrodynamics-and-thermal-convection-and-magneto-hydrodynamics-for-the-sun/
LOCATION:PICS Conference Room 534 – A Wing \, 5th Floor\, 3401 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Penn Institute for Computational Science (PICS)":MAILTO:dkparks@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191031T140000
DTEND;TZID=America/New_York:20191031T150000
DTSTAMP:20260408T154203
CREATED:20191017T133137Z
LAST-MODIFIED:20191017T133137Z
UID:10006320-1572530400-1572534000@seasevents.nmsdev7.com
SUMMARY:MEAM Special Seminar: "Smartphone-based Mobile Detection Platform for Molecular Diagnostics: from Infectious Diseases to Cancer"
DESCRIPTION:Rapid\, quantitative molecular diagnostics in the field\, at home\, and in resource poor settings is needed for evidence-based disease management\, control\, and prevention. Conventional molecular diagnostics requires extensive sample preparation\, sophisticated instruments\, and trained personnel\, restricting their use to centralized laboratories. To overcome the limitations of laboratory-based procedures\, we designed a simple\, inexpensive\, hand-held\, smartphone-based mobile detection platform “smart-connected cup”\, for rapid\, connected\, and quantitative detection of pathogens’ nucleic acids. More recently\, we have been expanding our technology platform to include detection of rare cancer biomarkers in body fluids for cancer screening and individualized therapy. To overcome the challenge of identifying very low concentrations of mutant alleles within a large background of very similar wild type nucleic acids\, we are using programmable enzymes to cleave wild type alleles and improve signal to noise ratio. We anticipate that our methods will improve quality of health care in regions lacking sophisticated laboratories and enable patients to assume greater responsibility for their care.
URL:https://seasevents.nmsdev7.com/event/meam-special-seminar-smartphone-based-mobile-detection-platform-for-molecular-diagnostics-from-infectious-diseases-to-cancer/
LOCATION:Towne 227 (MEAM Conference Room)\, 220 S. 33rd Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191031T104500
DTEND;TZID=America/New_York:20191031T114500
DTSTAMP:20260408T154203
CREATED:20191015T184523Z
LAST-MODIFIED:20191015T184523Z
UID:10006317-1572518700-1572522300@seasevents.nmsdev7.com
SUMMARY:MSE Seminar: "Managing Intercultural Interactions in a Challenging Global Higher Education Landscape"
DESCRIPTION:The rapidly diversifying face of colleges and universities in the United States including the University of Pennsylvania require that we are able to manage intercultural relationships from different backgrounds. We are all working in a multicultural institution\, with students\, faculty and staff from all over the world. This makes for a very diverse\, vibrant community – and at times\, a rather confusing one. This session will promote intercultural competence\, cultural humility and heighten cross-cultural awareness. You will engage in a presentation and discussion about culture\, values\, perceptions\, and communication styles and cultural patterns of thought and behavior that will help you understand the basic concepts\, theories and issues of intercultural communication related to intercultural relationships and how these concepts apply to your personal and professional lives.
URL:https://seasevents.nmsdev7.com/event/mse-seminar-managing-intercultural-interactions-in-a-challenging-global-higher-education-landscape/
LOCATION:Auditorium\, LRSM Building\, 3231 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Materials Science and Engineering":MAILTO:johnruss@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191030T150000
DTEND;TZID=America/New_York:20191030T160000
DTSTAMP:20260408T154203
CREATED:20190729T191906Z
LAST-MODIFIED:20190729T191906Z
UID:10006250-1572447600-1572451200@seasevents.nmsdev7.com
SUMMARY:CBE Seminar: "Chemical Reactor Scale-Up: Principles and Practice at Dow”
DESCRIPTION:Abstract: \nSince Dow first formed a global reaction engineering discipline over twenty years ago\, we have accumulated much experience leading and supporting a diversity of reaction engineering projects for our corporation. This presentation will provide specific examples of real-world reaction engineering problems at Dow in the past 27 years and summarize our perspective regarding the key tools and methods of the well-equipped industrial reaction engineering laboratory. Several brief anecdotal descriptions of past process development and reactor scale-up projects will highlight important lessons learned on this journey. In addition\, this talk will demonstrate the role of reaction engineering fundamentals and methodologies in shaping projects\, enabling decisions\, and empowering teams to succeed. Over the years\, we have used a wide array of laboratory hardware and computer software tools. In some cases\, we have developed our own tools; in other cases\, we have chosen to use commercially available offerings to meet our experimental and computational needs. This presentation will highlight the reaction engineering tools and best practices that have stood the test of time and close with a brief list of some of the capability gaps that remain.
URL:https://seasevents.nmsdev7.com/event/cbe-chemical-reactor-scale-up-principles-and-practice-at-dow/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191030T110000
DTEND;TZID=America/New_York:20191030T120000
DTSTAMP:20260408T154203
CREATED:20190916T161056Z
LAST-MODIFIED:20190916T161056Z
UID:10006279-1572433200-1572436800@seasevents.nmsdev7.com
SUMMARY:Sigma Aldrich Lecture: "Epitaxy by Design: Epitaxial Growth of Dissimilar Materials"
DESCRIPTION:Abstract:   The ability to integrate dissimilar materials with different crystal structures and properties enables heterostructures to be developed with new functionality well beyond the normal band gap engineering offered by semiconductor heterostructures. The combination of metals\, semiconductors\, insulators\, magnetic\, piezoelectric\, structural and phase change materials offers the potential for nearly limitless control of device properties. Heusler compounds\, for example\, are of great interest due to their multifunctional properties including metallic\, ferromagnetic\, half metallic\, semiconducting and potentially topological properties. Heterostructures of ferromagnetic materials with insulators and semiconductors have revolutionized spintronic devices. \nSemiconductors are an ideal choice for substrates for dissimilar materials epitaxial growth because of their wide range of lattice parameters\, high quality\, readily controlled electrical and optical properties and the availability of large area substrates at a reasonable cost. The control of strain and lattice matching\, interfacial bonding and reactions is important for the growth and properties of dissimilar materials heterostructures. \nIn this presentation\, results for the molecular beam epitaxial growth of metallic compound/III-V semiconductor heterostructures with designer properties will be discussed. High efficiency electrical spin injection and detection in magnetic Heusler/GaAs contacts\, tuning of the spin polarization\, as well as the ability to tune the electronic and magnetic properties of Heusler compounds through alloying will be presented. The focus of the presentation will be on understanding the growth and properties of dissimilar materials with emphasis on Heusler compound/III-V compound semiconductor heterostructures. These studies have aimed at tailoring of interfacial and material properties of these dissimilar materials heterostructures for targeting novel applications including spintronics and topological quantum computing.
URL:https://seasevents.nmsdev7.com/event/sigma-aldrich-lecture-epitaxy-by-design-epitaxial-growth-of-dissimilar-materials/
LOCATION:Glandt Forum\, Singh Center for Nanotechnology\, 3205 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Distinguished Lecture
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191029T110000
DTEND;TZID=America/New_York:20191029T120000
DTSTAMP:20260408T154203
CREATED:20190806T152451Z
LAST-MODIFIED:20190806T152451Z
UID:10006260-1572346800-1572350400@seasevents.nmsdev7.com
SUMMARY:ESE Seminar: "Solid-State Spin-Photon Interfaces: Old Friends & New"
DESCRIPTION:Abstract : Optically active spins in solids offer exciting opportunities as scalable and feasible quantum-optical devices. Numerous material platforms including diamond\, semiconductors\, and atomically thin 2d materials are under investigation\, where each platform brings some advantages of control and feasibility along with other challenges. The inherently mesoscopic nature of solid-state platforms leads to a multitude of dynamics between spins\, charges\, vibrations and light. Implementing a high level of control on these constituents and their interactions with each other creates exciting opportunities for realizing stationary and flying qubits within the context of spin-based quantum information science\, as well as investigating mesoscopic quantum systems. Quantum optics\, developed originally for atomic systems\, provides a very valuable toolbox for this endeavour. In this talk\, I will provide a snapshot of the progress and challenges for two contrasting examples for spin-photon interfaces\, namely semiconductor quantum dots and confined excitons in atomically thin materials. For the former\, I will focus on a method to suppress the magnetic noise of the nuclear ensemble by an effective cooling mechanism. This method yields access to the nuclear sideband resolved regime and coherent coupling between a single electron spin and the nuclear ensemble. For the latter\, I will discuss ways to deterministically trap long-lasting confined excitons acting as artificial atoms\, as well as their integration into opto-electronic devices.
URL:https://seasevents.nmsdev7.com/event/ese-seminar-mete-atatur/
LOCATION:PICS Conference Room 534 – A Wing \, 5th Floor\, 3401 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191029T103000
DTEND;TZID=America/New_York:20191029T120000
DTSTAMP:20260408T154203
CREATED:20191003T183053Z
LAST-MODIFIED:20191003T183053Z
UID:10006309-1572345000-1572350400@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "The Simulation and Modeling of Turbulent Flows"
DESCRIPTION:Our group at the University of Minnesota focuses on fundamental advances in numerical algorithms\, and understanding of flow physics that allow the prediction of engineering turbulent flows. This presentation will discuss key aspects of such simulation alongside illustrative examples. We will discuss a recently developed unstructured overset grid methodology and its application to particle-resolved DNS of several thousands of particles in turbulent flow. We will discuss global stability and adjoint analyses for three-dimensional complex baseflows\, and illustrate its application to jets in crossflow. Finally we will present an integral analysis for axisymmetric boundary boundary layers in the presence of pressure gradients\, and illustrate its application to interpret LES results.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-the-simulation-and-modeling-of-turbulent-flows/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191028T120000
DTEND;TZID=America/New_York:20191028T130000
DTSTAMP:20260408T154203
CREATED:20190919T183655Z
LAST-MODIFIED:20190919T183655Z
UID:10006293-1572264000-1572267600@seasevents.nmsdev7.com
SUMMARY:PSOC Seminar : "Single-Cell Analysis of Differentiation and Drug Response in Glioblastoma"
DESCRIPTION:
URL:https://seasevents.nmsdev7.com/event/psoc-seminar-single-cell-analysis-of-differentiation-and-drug-response-in-glioblastoma/
LOCATION:Room 337\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="PSOC":MAILTO:manu@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191028T110000
DTEND;TZID=America/New_York:20191028T123000
DTSTAMP:20260408T154203
CREATED:20191016T144200Z
LAST-MODIFIED:20191016T144200Z
UID:10006318-1572260400-1572265800@seasevents.nmsdev7.com
SUMMARY:ESE Doctoral Dissertation Defense: "IMU-Based State Estimation and Control of Quadrotors Leveraging Aerodynamic Effects"
DESCRIPTION:Abstract: Quadrotors and multirotors in general are common in many inspection and surveillance applications. For these applications\, visual-inertial odometry is a common way to localize the vehicles and observe the environment. However\, unlike with wheeled mobile robots\, quadrotor localization algorithms often do not use knowledge of the control inputs and the full vehicle dynamics as a process model for localization. Rather\, they use kinematic models\, with the IMU providing acceleration and angular velocity. One of the reasons for avoiding the use of dynamics is that\, until recently quadrotor aerodynamic effects have not been considered in the literature and hence the dynamic models for quadrotors have been less accurate than those for wheeled mobile robots. The main aerodynamic terms that are significant are first-order effects that are linear in velocity and angular velocity. They are predominantly caused by aerodynamic interaction with the spinning propellers. This work investigates the models for such effects\, as well as what can be gained if such aerodynamic effects are incorporated into the dynamic model and the full dynamics are used for state estimation. We develop novel IMU-based filters\, the end results of which are used to estimate the wind velocity of the quadrotor or\, indoors\, when the ambient wind is zero\, the velocity of the quadrotor. In addition\, these filters estimate the many aerodynamic parameters in the model online. They may also be used to estimate sensor biases and inertial parameters. We demonstrate the effectiveness of these filters through experiments. We also present nonlinear observability analyses that theoretically determine the observability properties of the systems. \nCommittee Members:\nVijay Kumar\, Nemirovsky Family Dean of Engineering\nAni Hsieh\, Research Associate Professor\, MEAM\nKostas Daniliidis\, Ruth Yalom Stone Professor\, CIS\nCamillo J. Taylor\, Professor\, CIS\nGiuseppe Loianno\, Associate Professor\, NYU ECE
URL:https://seasevents.nmsdev7.com/event/ese-doctoral-dissertation-defense-imu-based-state-estimation-and-control-of-quadrotors-leveraging-aerodynamic-effects/
LOCATION:Room 307\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
END:VEVENT
END:VCALENDAR