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Towards basin-scale in-situ characterization of sea-ice using an Autonomous Underwater Glider
(Massachusetts Institute of Technology, 2020)
This thesis presents an Autonomous Underwater Glider (AUG) architecture that is intended for basin-scale unattended survey of Arctic sea-ice. The distinguishing challenge for AUG operations in the Arctic environment is the ...
A method for on-line water current velocity estimation using Lol-cost autonomous underwater vehicles
(Massachusetts Institute of Technology, 2020)
Advances in the miniaturization of microelectronics has greatly contributed to the proliferation of small, low cost autonomous underwater vehicles (AUVs). These affordable vehicles offer organizations a flexible platform ...
A planned approach to high collision risk area
(Massachusetts Institute of Technology, 2020)
This thesis examines the transition of a vessel from the open ocean, where collisions are rare, to a high risk and heavy traffic area such as a Traffic Separation Scheme (TSS). Previous autonomy approaches generally view ...
Adaptive neural controller based on convex parametrization
(Massachusetts Institute of Technology, 2020)
The problem of control of a class of nonlinear plants has been addressed by using neural networks together with sliding mode control to lead to global boundedness. We revisit this problem in this thesis and suggest a ...
Investigating the feasibility and impact of integrating wire-arc additive manufacturing in aerospace tooling applications
(Massachusetts Institute of Technology, 2020)
The use of wire-arc additive manufacturing (WAAM) as fabrication method for Iron-Nickel 36 (Invar36) alloy aerospace tooling is a growing area of interest for many tooling companies and composite aircraft manufacturers. ...
Applications of risk pooling for the optimization of spare parts with stochastic demand within large scale networks
(Massachusetts Institute of Technology, 2020)
Amazon is able to deliver millions of packages to customers every day through its Fulfillment Center (FC) network that is powered by miles of material handling equipment (MHE) such as conveyor belts. Unfortunately, this ...
Sequestering floating biomass in the deep ocean : "Sargassum ocean sequestration of carbon" (SOS Carbon)
(Massachusetts Institute of Technology, 2020)
Sargassum seaweed has been growing ever faster due to climate change and agricultural runoff and has become a terrible problem for the Caribbean. The floating algae has been inundating Caribbean coasts in unprecedented and ...
Development of a hydrogel-based biocompatible platform for studying metabolic interactions between algae and bacteria
(Massachusetts Institute of Technology, 2020)
Metabolic interaction between algae and bacteria is an essential topic to develop algal crops as a source of biofuels and to understand nutrient cycling in ocean ecosystems. To date, studying chemical exchange between these ...
Benchmarking environmental efficiency of garment factories to understand the value of real-time environmental data
(Massachusetts Institute of Technology, 2020)
Li & Fung works with over 10,000 factories distributed across 50 countries to design, produce, and deliver hard- and soft- goods to over 2,000 apparel and consumer goods customers. An increasingly prevalent focus of the ...
Cost of complexity : mitigating transition complexity in mixed-model assembly lines
(Massachusetts Institute of Technology, 2020)
The Nissan Smyrna automotive assembly plant is a mixed-model production facility which currently produces six different vehicle models. This mixed-model assembly strategy enables the production level adjustment of different ...