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MEAM Seminar: “Systemic Disadvantages for LGBTQ Professionals in STEM”

Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

Researchers have documented race and gender bias in STEM for decades, but there has been little parallel examination of LGBTQ status as an axis of inequality. How do LGBTQ-identifying STEM professionals fare in STEM? Drawing on data from her NSF-funded STEM Inclusion Study, which included surveys of over 25,000 STEM workers, Dr. Cech will discuss […]

BE Seminar: “Synthetic reconstitution of complex cellular behavior” (Ahmad Khalil, Boston University)

216 Moore Building

Cells use genetically-encoded molecular circuits to execute diverse biological functions. We are developing novel tools of synthetic biology that allow us to construct regulatory circuitry inside living cells that recapitulate complex functions like those seen in nature. In this talk, I will describe how we use this approach to achieve three objectives. First, I will […]

MEAM Seminar: “Propulsive Advantages of Coordinating Multiple Jets by Colonial Marine Organisms”

Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

Salps and siphonophores are widespread marine animals that occur in centimeters to meters-long colonial chains and employ multiple, pulsed swimming jets. We use a combination of approaches including in situ and lab experiments, flow visualizations and custom high-speed camera systems to understand the morphology, kinematics and fluid mechanics that underpin efficient movement in these colonial […]

MEAM Ph.D. Thesis Defense: “Semantics-Driven Active Perception and Navigation with Aerial Robots”

Room 313, Singh Center for Nanotechnology 3205 Walnut Street, Philadelphia, PA, United States

Autonomous aerial robots today are capable of safely navigating through cluttered, GPS-denied environments while constructing an accurate map that captures geometric features such as points, lines, and planes. Such maps are crucial for low-level planning and obstacle avoidance. However, beyond offering details on the density, layout, and dimensions of the environment, these maps provide limited […]

MEAM Seminar: “Engineering Mechanics of Architected Hard-Soft Composites: Experiment, Simulation, and Theory”

Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

Enhancing the resistance of human-made brittle materials to fracture is challenging due to the limited microstructural toughening mechanisms. This seminar makes a case for engineering toughening mechanisms in brittle materials by developing purposeful architected arrangements of material inspired by natural systems. Experimental fracture mechanics in hard-soft (cementitious-elastomeric) ‘Nacre-like’ composites based on the tabulated brick-and-mortar arrangement […]

MEAM Seminar: “Engineering Innovation in Maternal and Fetal Health: The Biomechanics of High-Risk Pregnancies”

Wu & Chen Auditorium

The reproductive soft tissues that support the fetus undergo some of the most dramatic and unique growth and remodeling events in the human body. The uterus and fetal membrane must grow and stretch during pregnancy to accommodate the fetus. Simultaneously, the cervix must remodel and be a mechanical barrier to keep the fetus within the […]

MEAM Seminar: “Digital Twin Development using Physics-Informed Neural Operators”

Towne 307 220 S. 33rd Street, Philadelphia, PA, United States

Digital twins are virtual models of physical systems that allow for more computationally cost-effective evaluation and optimization. Building digital twins often involves machine learning techniques that integrate data with underlying physical laws. In this seminar, I'll explore two such techniques: Physics-Informed Neural Networks (PINNs) and operator learning. First, I'll discuss the formulation of PINNs and […]

MEAM Seminar: “Multifunctional Architected Structures”

Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

Funicular structural forms maximize the structural performance and minimize the use of materials by carrying the applied loads in the form of pure tensile/compressive axial forces. The internal structure of a bone is a classic example where material follows the principal stress directions and forms a delicate latticework of tiny, interlaced trabeculae crossing each other. […]

MEAM Ph.D. Thesis Defense: “Exploring Multimodal Sensing Across the Stack for Robot Manipulation”

Raisler Lounge (Room 225), Towne Building 220 South 33rd Street, Philadelphia, PA, United States

Despite substantial progress in robotics, achieving human-like manipulation remains a significant challenge. Existing robotic systems typically leverage human-inspired sensory modalities: vision, touch, and proprioception. However, these modalities are historically studied and integrated in isolation, leading to limited performance in complex real-world tasks that require sensing across multiple modalities for robust generalization. As a result, robots […]

Center for Soft and Living Matter Seminar: “Medium-range Order and Local Structure Fluctuations in Metallic Glass”

DRL 2N3

Amorphous materials have no long-range order, but there are ordered structures at short-range (2-5 Å), medium-range (5-20 Å), and even longer-length scales. While regular and semiregular polyhedra are often identified as short-range order in amorphous materials, the nature of the medium-range order has remained elusive. Because of the disorder, the dynamics also become far more […]