Aviation emissions lead to degraded air quality and adverse human health impacts, making one of the leading environmental externalities associated with aviation. have been growing steadily over past decades, and, despite current hindrance in traffic due COVID- 19 pandemic, they are forecasted continue grow long-term. As a result, mitigating aviation’s impacts is an increasingly pressing challen...

While all modes of human transportation introduce some degree of risk to life and health, the rigors of spaceflight present particularly challenging physiological and environmental factors that occur under very unforgiving operational circumstances. Commercial spaceflight will face issues similar to those experienced on prior traditional space missions, as well as encounter other health concern...

No study of otolaryngology is complete without a description of the physiological and pathological conditions which may affect the ears and nasal sinuses in aerospace and underwater. This is borne out by the importance of aviation, both civil and military, in the modern world and by the rapid development of the underwater industry. This view is consolidated by the millions of passengers who fly...

Developed by Dr. T.P. Wright in 1936, learning curves projected World War II production capacities. Afterward they became standard in the aircraft industry. In defense contracting, an expected learning rate is often factored into negotiations. However, learning curves seemingly made little impact on manufacturing progress in aviation or elsewhere. The history of the learning curve illustrates o...

Hydrocarbon oils of the alga Botryococcus braunii, extracted from a natural "bloom" of the plant, have been hydrocracked to produce a distillate comprising 67% gasoline fraction, 15% aviation turbine fuel fraction, 15% diesel fuel fraction, and 3% residual oil. The distillate was examined by a number of standard petroleum industry test methods. This preliminary investigation indicates that the ...

Learning is necessary for an organization to evolve, improve and innovate. We are all conditioned benefit from the evident effects of our behaviors. After first try, we do not touch hot stove again. also recognize complex scenarios apply fast solutions. Companies like humans they learn as people do. From this point view, aviation industry discussed in study beyond learning loops approach Agrysi...

Diversity within the science, technology, engineering, and mathematics (STEM) fields has historically lagged behind that which is found in other vocational paths. Aviation has also suffered poor diversity with virtually no participation among professional pilots. With both the literature specifying the benefits of diversity in the aviation workplace and potential shortages of pilots looming, it...

In 2001, the Volpe National Transportation Systems Center completed an evaluation of GPS vulnerabilities and the potential impacts to transportation systems in the United States. One of the recommendations of this study was for the operation of backup system(s) to GPS; Loran-C was identified as one possible backup system. The Federal Aviation Administration (FAA) has been leading a team consist...