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Aeronautics, Commercial --- Passenger traffic.

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"Nanoscale science, engineering, and technology, often referred to simply as "nanotechnology," is the understanding, characterization, and control of matter at the scale of nanometers, the dimension of atoms and molecules. Advances in nanotechnology promise new materials and structures that are the basis of solutions, for example, for improving human health, optimizing available energy and water resources, supporting a vibrant economy, raising the standard of living, and increasing national security. Established in 2001, the National Nanotechnology Initiative (NNI) is a coordinated, multiagency effort with the mission to expedite the discovery, development, and deployment of nanoscale science and technology to serve the public good. This report is the latest triennial review of the NNI called for by the 21st Century Nanotechnology Research and Development Act of 2003. It examines and comments on the mechanisms in use by the NNI to advance focused areas of nanotechnology towards advanced development and commercialization and on the physical and human infrastructure needs for successful realization in the United States of the benefits of nanotechnology development"--Publisher's description.

Nanotechnology --- Technology transfer --- Research --- National Nanotechnology Initiative (U.S.) --- Evaluation. --- United States.

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The Defense Materials Manufacturing and Infrastructure standing and planning committee of the National Academies of Sciences, Engineering, and Medicine convened a workshop on May 19-20, 2016, to discuss the value of collaboration between the materials and civil engineering communities in addressing the following problem: People and equipment are continuously monitored through multiple organizations and instruments, but the physical infrastructure where they live, train, and deploy receives little attention until it fails or is shown to be inadequate. The workshop was organized into three sessions: (1) highway infrastructure, (2) waterways infrastructure, and (3) railways infrastructure. Within these three sessions, individual speakers gave presentations on technical, functional, and economic paradigms and answered questions from workshop participants. Following these sessions, a panel discussion was held to discuss existing gaps as well as ways to overcome challenges. This publication summarizes the presentations and discussion of the workshop.

Service life (Engineering) --- Predictive analytics.

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Advances in materials science and engineering play a crucial role in supporting the U.S. economy and national security. To maintain its leading edge in the field, the United States relies on a rich and diverse innovation ecosystem encompassing industry, academic institutions, and government laboratories. While this ecosystem has generated numerous gains for defense agencies, the technology sector, consumers, and the country as a whole over many decades, recent years have brought new challenges and a shifting global dynamic in the field. The United States, long a global magnet for science, technology, engineering, and mathematics education and expertise, has seen its competitive edge slip as other countries in Europe and Asia have increased their investments in cultivating science and engineering talent and innovation. In 2020, the emergence of the COVID-19 pandemic caused far-reaching disruptions for both education and supply chains across the world, compounding many of the dynamics that were already affecting materials science and engineering in the United States.To explore these issues, the Workshop on Materials Science and Engineering in a Post-Pandemic World was organized as part of a workshop series on Defense Materials Manufacturing and Its Infrastructure. Hosted by the National Academies of Sciences, Engineering, and Medicine, the virtual event brought together approximately 30 speakers and attendees representing materials science, engineering, and manufacturing experts from industry, academia, and government agencies. The 3-day workshop explored education and workforce trends across the nation and the globe, with particular focus on the U.S. Department of Defense and university-government collaborations. Participants discussed how the COVID-19 pandemic has affected science and engineering education, opportunities to reimagine traditional education for the field, and the imperative to develop a more diverse workforce. Several speakers presented their views on what the post-pandemic future may hold, and many offered perspectives on key concerns and priorities for the field moving forward. This publication summarizes the presentations and discussion of the workshop.

Materials. --- Materials science.

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Steel is a common component of U.S. infrastructure, but that steel can corrode when buried in soil, rock, or fill. Steel corrosion is estimated to cost the United States 3-4 percent of its gross domestic product every year, and it can lead to infrastructure failure, loss of lives, property, disruption of energy and transportation systems, and damage to the environment. Although the mechanisms of steel corrosion are well understood, limited data on subsurface corrosion and the inability to measure corrosivity directly make accurate corrosion prediction through modeling a challenge. When hazardous levels of corrosion does occur, it is difficult to determine whether the cause was related to site selection, engineering decisions, changes in subsurface conditions, or a combination of these factors.This report explores the state of knowledge and technical issues regarding the corrosion of steel used for earth applications (e.g., for ground stabilization, pipelines, and infrastructure foundations) in unconsolidated earth or rock in different geologic settings. The report summarizes mechanisms of steel corrosion, assesses the state of practice for characterizing factors in the subsurface environment that influence corrosion and corrosion rates, and assesses the efficacy and uncertainties associated with quantitative, field, and laboratory methods for predicting corrosion.The industries and experts most involved with managing buried steel should collaborate to improve multidisciplinary understanding of the processes that drive buried steel corrosion. Developing a common lexicon related to buried steel corrosion, generating new data on corrosion through collaborative long-term experiments, sharing and managing data, and developing new data analytical techniques to inform infrastructure design, construction, and management decisions are key. Industries, experts, and regulators should collaboratively develop decision support systems that guide site characterization and help manage risk. These systems and new data should undergird a common clearinghouse for data on corrosion of buried steel, which will ultimately inform better and more efficient management of buried steel infrastructure, and protect safety and the environment.

Corrosion and anti-corrosives --- Materials science