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Manufacturing and fracture of hierarchical composite materials enhanced with aligned carbon nanotubes
(Massachusetts Institute of Technology, 2014)
Hierarchical advanced composite structures comprised of both nano- and micro-scale fibers are currently being studied as next-generation materials for multifunctional aerospace applications. Carbon nanotubes (CNTs) are an ...
Human health impacts of high altitude emissions
(Massachusetts Institute of Technology, 2015)
Millions of deaths worldwide are attributed annually to exposure degraded surface air quality and UV-induced skin cancer. However, the focus has been on surface emissions, and the contribution of high altitude emissions ...
Evaluation of multi-vehicle architectures for the exploration of planetary bodies in the Solar System
(Massachusetts Institute of Technology, 2014)
Planetary exploration missions are becoming increasingly complex and expensive due to ever more ambitious scientific and technical goals. On the other hand, budgets in planetary science have suffered from dramatic cuts ...
Experiments and a model of pilot system failure detection during simulated Lunar landing
(Massachusetts Institute of Technology, 2014)
Future complex systems, such as those found in piloted aircraft and spacecraft, will undoubtedly utilize significant automation to enhance pilot capabilities and enable novel mission scenarios. Off-nominal conditions may ...
Development of a high-precision ADS-B based conflict alerting system for operations in the airport environment
(Massachusetts Institute of Technology, 2014)
The introduction of Automatic Dependent Surveillance - Broadcast (ADS-B) as the future source of aircraft surveillance worldwide provides an opportunity to introduce high-precision airborne conflict alerting systems for ...
Airport surface traffic optimization and simulation in the presence of uncertainties
(Massachusetts Institute of Technology, 2014)
Surface traffic congestion causes significant taxi delays and long queues for takeoffs at busy airports, increasing operational and environmental costs. These impacts may be mitigated by optimizing runway and taxiway ...
Space-based laser guide stars for astronomical observatories
(Massachusetts Institute of Technology, 2020)
The Laser Guide Star (LGS) concept is proposed to enable reductions in cost of next-generation space telescopes, by providing reference targets (as bright as apparent magnitude -7) to enable wavefront stability and control ...
The effect of differential color refraction on astrometric observations of Solar System bodies and Earth satellites from ground-based optical telescopes
(Massachusetts Institute of Technology, 2019)
Earth's atmosphere is optically dispersive and subjects astrometric observations from ground-based optical telescopes to systematic bias from differential color refraction (DCR). This bias is evident in Minor Planet Center ...
Reducing the air quality impacts of aircraft activity at airports
(Massachusetts Institute of Technology, 2016)
Air transportation is an integral part of the economy and the transportation infrastructure. However, aircraft activity at airports generates CO2 emissions that affect the climate and other pollutants that affect air quality ...
Interactive and interpretable machine learning models for human machine collaboration
(Massachusetts Institute of Technology, 2015)
I envision a system that enables successful collaborations between humans and machine learning models by harnessing the relative strength to accomplish what neither can do alone. Machine learning techniques and humans have ...