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Filtering by: Creator Osorio, Johan S. Remove constraint Creator: Osorio, Johan S. Academic Affiliation Mechanical, Industrial, and Manufacturing Engineering Remove constraint Academic Affiliation: Mechanical, Industrial, and Manufacturing Engineering Language English [eng] Remove constraint Language: English [eng]

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  • Optimal control of an underactuated bipedal robot

    Creator:
    Jones, Mikhail S.
    Abstract:
    Bipedal robots represent a unique class of control problems that combine many of the most difficult elements of nonlinear control. These robots are typically designed to be mobile and as such have limited energy and actuator authority making efficiency a prime concern. Unlike wheeled robots, legged robots must transition between...
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT OF THE THESIS OF Mikhail S. Jones for the degree of Master of Science in Mechanical Engineering

  • The Structural Characteristics of Robustness in Large-Scale Complex Engineered Systems

    Creator:
    Walsh, Hannah S.
    Abstract:
    Modern engineered systems are increasingly integrated into society, decentralized, and interconnected. However, scale and complexity create unique challenges in system design, such as emergent behavior and unintended consequences. This work investigates the structural characteristics of robustness in complex engineered systems by identifying patterns of under-recognized vulnerabilities at various levels of...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Hannah S. Walsh for the

  • Development of Cu-based Thin Films for Optoelectronic Applications

    Creator:
    Angelos, Gregory S.
    Abstract:
    CIGS and CdTe based commercial thin-film solar cells (TFSCs) require an absorber thickness greater than 2 µm and 4 µm, respectively, to adequately absorb the solar spectrum. To efficiently extract photoexcited electrons, these TFSCs require relatively defect-free absorbers with high-minority carrier mobility (> 100 cm2V−1s−1) and long lifetime (> 10...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Gregory S. Angelos for the

  • Multi-objective Resilience Optimization of Interdependent Critical Infrastructure Networks

    Creator:
    Tiong, Achara
    Abstract:
    Critical Infrastructures (CIs) such as energy, water supply, telecommunications, and transportation are highly vulnerable to cascading failures due to their interdependent operations. A resilient network is crucial to withstand the impact of functionality loss in disruptive events. This research evaluates network expansion as a proactive resilience strategy in which new...
    Resource Type:
    Dissertation
    Full Text:
    , Dr. David S. Kim, Dr. Eduardo Cotilla-Sanchez, and Dr. John Sessions whose collective feedback has

  • LPBF and Post Processing of H13 Tool Steel

    Creator:
    Alabdulali, Ali
    Abstract:
    Laser powder bed fusion (LPBF) is an innovative method where metal powder is fused together to generate complex geometries. LPBF is used as a technology to reduce material waste, and extensive labor that are often linked to conventional subtractive manufacturing. H13 tool steel is one of the widely used materials...
    Resource Type:
    Masters Thesis
    Date Created:
    2023-08-31
    Full Text:
    density of 98% is obtained. Laser power of 203W, scanning speed of 700 mm/s, hatch spacing of 40μm and

  • Evaluation of Network Expansion Decisions for Resilient Interdependent Critical Infrastructures with Different Topologies

    Creator:
    Tiong, Achara and Vergara, Hector A.
    Abstract:
    Resilient interdependent critical infrastructures (CIs) can better withstand cascading failures in disruptive events. This study proposes network expansion as a resilience improvement strategy for interdependent CIs and evaluates the influence of topology in interdependent network design for resilience optimization under disruption uncertainty. A resilience score consisting of network complexity and...
    Resource Type:
    Article
    Full Text:
    ij ≥ 0 ∀(i, j) ∈ A k, r ∈ Rk, k ∈ K, l ∈ K : l ̸= k, ω ∈ Ω (18) 10 urk,ωi ≥ 0 ∀i ∈ N rk s , r

  • A Computational Framework for Resilience-Informed Design

    Creator:
    Hulse, Daniel E.
    Abstract:
    It is desirable for complex engineered systems to perform missions efficiently and economically, even when these missions' complex, variable, long-term operational profiles make it likely for hazards to arise. It is thus important to design these systems to be resilient so that they will actively prevent and recover from hazards...
    Resource Type:
    Dissertation

  • Operations Research Models for Blood Supply Chain Network Design for Disaster Planning

    Creator:
    Baik, Shefaa A.
    Abstract:
    A blood supply chain (BSC) deals with the collection, processing, storing, and distribution of blood collected from donors and delivered to patients at demand points (DPs) through a network of several temporary mobile blood units (MBUs) and permanent local blood centers (LBCs). In general, the strategic and tactical design of...
    Resource Type:
    Dissertation
    Full Text:
    , store, and distribute blood and blood-derived products to other HCFs (Osorio et al., 2015). On a

  • Automated Design of Foam Packaging Shapes

    Creator:
    So, David M.
    Abstract:
    Creating effective packaging is about finding a balance between product protection during shipping and time consumption in the design process. Given time and cost constraints, it is hard to produce sufficiently protective padding while having it not be thicker than it needs to be. This thesis describes a method to...
    Resource Type:
    Masters Thesis
    Full Text:
    polyurethane with a range of strain rates, from quasi-static (.0033 s-1) to highly dynamic (160 s-1). While

  • Enabling Feasibility Assessment of Solar Thermal Energy Systems for Industrial Process Heating Applications

    Creator:
    Karki, Saroj
    Abstract:
    Existing studies on industrial heat demand have shown that more than 50% of the industrial process heat demand is in the range of low (<60 °C), medium (60-150 °C), and medium-high (<250 °C) temperatures. Most of the manufacturing industries across the world depend on combustion of carbon-based fossil fuels, either...
    Resource Type:
    Masters Thesis
    Full Text:
    ) obtained by the two test methods showed good agreement. Zambolin and Del Col [35] and Osório & Carvalho