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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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The learner objectives for this presentation are: define science, engineering and technology; understand the relationship between science, engineering and mathematics; introduce the concepts of length and time scales; and discuss technology maturity.
Photos showing the condition of some of the historic Manhattan Project badge photos.
I‘m proud to introduce this quarter’s AMPP Division newsletter, with a focus on “operational and process improvement.” AMPP is known for excellence in our NNSA and DOE missions, as well as our operations that support those missions, but that does not mean that we can’t be even better. This quarter’s newsletter is devoted to how we are accomplishing the goal of improving not only what we do but how we do it.
This study outlines an approach that operators of U.S. Department of Energy sites can use to value resilience. Qualitative screening and assessments often effectively identify vulnerabilities and measures that would enhance resilience. However, the implementation of these measures may be limited by a lack of a quantifiable cost-benefit analysis that compares action to inaction. The method presented here is intended to help overcome this barrier by detailing how DOE sites can quantify the costs and benefits of site resilience measures, and to compare that to the value of inaction. The approach mirrors common vulnerability assessment and resilience planning methods following five key steps (e.g., establish the baseline, assess vulnerability and risk, develop the resilience action plan), and provides detailed guidance on methods for quantification within each step. The five-step methodology was implemented in a case study of the U.S. Department of Energy’s Hanford Site, which demonstrated the value of two resilience measures aimed at helping the site to avoid lost work hours due to expected increases in the number of high heat days.
Articles in this issue include: From Ellen's desk; Advances in aerial payload vessels: Spherical aerogel shells hold vacuum; New materials deformation details emerge through combination of neutron and high-energy x-ray diffraction measurements; and Hans Herrmann named 2019 APS Fellow.
The Scaled Wind Farm Technology (SWiFT) site, operated by Sandia National Laboratories for the U.S. Department of Energy’s Wind and Water Power Program, was commissioned in 2013 as a research facility with multiple wind turbines at a scale useful for the experimental study of wake dynamics, advanced rotor development, turbine control, and advanced sensing at production-scale wind farms. This manual provides an overview of facility operations, hazards and safety controls, and emergency response procedures at the site and is required reading for all SWiFT staff and Sandia workers, collaborators, and contractors who perform work on the site.
This tutorial walks the user through analysis examples using the Contingency Contractor Optimization Tool Prototype. The examples are designed to showcase key capabilities of the tool. The main goal of this tutorial is to provide examples of how to use the tool to perform analyses to those users acting in the analyst role. All examples and locations used in the prototype are fictional, but are intended to be realistic. Users reading this manual are expected to have a basic understanding and familiarity with the Contingency Contractor Optimization Tool Prototype. This tutorial includes scenarios for the occurrence of two wars, Prussia and New Granada.
National Security Education Center (NSEC) enables vital university relationships and pipeline.
Abstract not provided.
Partnerships ensure a strong Laboratory and support our missions. Partnerships are critical to our success as a Laboratory: community relations, colleges and universities and technical communities, regional and national economic development through industrial partners, DOE Laboratories, and other federal agencies. The Laboratory has many tools to build and enhance partnerships. The Community Programs Office in our Northern New Mexico Region has K-12 educational programs, supports teacher professional development and retention in regional elementary, middle and high schools, and provides community college engagement. The Partnerships and Pipeline Office works with the National Security Education Center (NSEC) which has broad university engagement including New Mexico universities. The Feynman Center for Innovation is involved in 'tech transfer' to innovation asset stewardship. The External Assignments Office shares LANL's technical expertise. The Student and Postdoc Program Offices build our workforce of the future.
A Capability Pillar is a broad, multidisciplinary area of technical strength that is required for execution of enduring programs and in which the Laboratory needs to maintain robust national/ international leadership and depth. More meaningfully, a Pillar is an ongoing construct for planning how we combine competencies to address big, difficult, persistent, and endemic problems.
Integrating experimental results, research, diagnostics, and models to produce innovative answers to current and future shock and detonation physics problems in service to the Nation.
This presentation covers: The role of the recruiter, Policy and compliance, Recruiting materials and operations, and Post-event.
The outline for this presentation includes the history, World War II legacy, and current mission of Los Alamos National Laboratory; detonator manufacturing in the Nuclear Security Enterprise; manufacturing processes; and expanding the supply chain.
Abstract not provided.
Abstract not provided.
A talk on the subject of the various spies that were present at Los Alamos during the Manhattan Project.
Accurate and efficient constitutive modeling remains a cornerstone issue for solid mechanics analysis. Over the years, the LAME advanced material model library has grown to address this challenge by implementing models capable of describing material systems spanning soft polymers to stiff ceramics including both isotropic and anisotropic responses. Inelastic behaviors including (visco)plasticity, damage, and fracture have all incorporated for use in various analyses. This multitude of options and flexibility, however, comes at the cost of many capabilities, features, and responses and the ensuing complexity in the resulting implementation. Therefore, to enhance confidence and enable the utilization of the LAME library in application, this effort seeks to document and verify the various models in the LAME library. Specifically, the broader strategy, organization, and interface of the library itself is first presented. The physical theory, numerical implementation, and user guide for a large set of models is then discussed. Importantly, a number of verification tests are performed with each model to not only have confidence in the model itself but also highlight some important response characteristics and features that may be of interest to end-users. Finally, in looking ahead to the future, approaches to add material models to this library and further expand the capabilities are presented.