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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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At least 1,153 records · Page 64
All sourcesNASA NTRSDOE OSTI
NASA NTRSDate not supplied

Managing Multi-Instrument Data Streams in Secure Environments

The capture and curation of all primary instrument data is a potentially valuable source of added insight into experiments or diagnostics in laboratory experiments. The data can, when properly curated, enable analysis beyond the current practice that uses just a subset of the as-measured data. Complete curated data can also be input for machine learning and other data exploration tools. Conveniently storing and accessing instrument data requires that the instruments are connected to databases and users through a networking infrastructure. This infrastructure needs to accommodate a wide array of instruments which can range from single laboratory mounted probes for environment monitoring to computers managing multiple instruments. These resources may also include mobile devices on which researchers record instrument and experiment state related notes. These varied data sources bring with them the challenges of different communications capabilities and protocols as well as the primary data typically being produced in proprietary formats. These challenges are further compounded when the instruments need to operate in secure environments such as required in national laboratories. We will discuss the SmartLab, an ongoing effort to set up a system for instrument and simulation data curation at NASA Langley Research Center. We will outline the challenges faced in managing the data sources required for ongoing research activities and the solutions that are being considered and implemented to address those challenges.

instrument data management↗
DOE OSTI2018

Cyber-Securing Facility Related Control Systems

Fact sheet describes cyber security strategies applicable to federal facilities, which were gleaned from the experiences at several U.S. Department of Energy national laboratories.

control system↗
DOE OSTI2018

The Power of Partnerships - Federal Energy Management Program and Department of Homeland Security: Resilience Framework

The Federal Energy Management Program (FEMP) and Department of Homeland Security (DHS) collaborated in a strategic partnership to advance federal critical infrastructure resilience and develop a Resilience Framework to apply across the DHS enterprise. The partnership also established resilience performance metrics and monitoring guidelines, identified best practices for resilience technologies and solutions, and provided technical support.

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DOE OSTI2018

Programmatic Value Determination and Termination of Safeguards Process for Accountable Nuclear Materials at the Nevada National Security Site

The Nuclear Material Management & Storage (MNN&S) and the Material Control and Accountability (MC&A) programs at the Nevada National Security Site (NNSS) have the responsibility to ensure accountable nuclear material (NM) no longer need by programs/projects is managed, coordinated, and dispositioned in accordance with DOE Orders 410.2, “Management of Nuclear Materials, and 474.2, “Nuclear Material Control and Accountability”. CD-NMM.007, “Programmatic Value Determination of Nuclear Material and Termination of Safeguards” is the document which lays out the process to fulfill these requirements. This paper defines the roles and responsibilities for all the organizations involved, the programmatic value determination (PVD), disposition planning, and termination of safeguards (ToS)

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DOE OSTI2017

Building Cyber-Physical Security

Cyber-attacks are becoming more common and brazen. You may already have been a victim of one of these attacks and only find out when your credit card company calls to asks about suspicious activity. Many of the attacks that are in the news are focused on obtaining “personal identifiable information” such as credit card numbers, bank accounts and social security numbers. But there is a whole other target for these cyber criminals, and that is the area of cyber-physical systems including industrial control systems, infrastructure controls such as the electrical grid, and even controls for building systems. While not as well publicized as financial and personal information attacks are both a very real risk and a clear and present danger.

Cyber Physical Security↗
DOE OSTI2019

Intrinsic Security Design for Tomorrow’s Energy Systems

With the introduction of smart devices and rise in distributed, networked energy systems, diligent focus on cybersecurity for an evolving grid is crucial. Watch this video to learn more about what NREL is doing to mitigate threats to today’s energy infrastructure and provide a pathway to a more secure and resilient energy future.

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DOE OSTI2020

The Gulf Nuclear Energy Infrastructure Institute: A Multidisciplinary Educational Approach for Integrated Nuclear Energy Safety Security and Safeguards in the Middle East

The Gulf Nuclear Energy Infrastructure Institute (GNEII) at Khalifa University of Science and Technology was created as a regional institute offering education, research and technical services to support nuclear energy safety, security and safeguards (3S) objectives. A mixed methods approach—using the (1) Course Evaluation, (2) GNEH Alumni Survey, (3) Capstone Project and, (4) GNEII-Related Literature data sets—was used to evaluate the effect of implementing this multidisciplinary `3S' educational program and the broader impact of the associated `3S' multidisciplinary institute on nuclear energy human resource development. Data sets (1), (2) and (3) illustrate how well GNEII implemented this novel 3S curriculum and resulted in successful knowledge transfer. Data sets (2), (3) and (4) illustrate how well GNEII's impact has positively influenced professional workplace behaviors and the institute's broader reputation to support responsible nuclear energy program education. Furthermore, GNEII demonstrates one option for successfully providing a multidisciplinary, 3S curriculum to support broader nuclear infrastructure and human resource development aims.

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗
DOE OSTI2022

Exploring Applied Cryptosystems to Formally Verify Security in Cyber-Physical Systems

This project aims to evaluate RSA as a method for public-key encryption for cyber-physical systems (CPS). As technology advances, cyber attacks are increasing, and with them, the need for cybersecurity advances; the average cost for cybercrime in the world was estimated at $6 trillion in 2021. A public-key cryptosystem that has been around since 1977, RSA has recently garnered some critiques for its fragility, computational cost, and lazy implementation. In this project I will review the mathematical derivation of RSA, analyze the practical implications of such mathematical framework for the security of RSA, and propose a formal methods based approach to verify encryption schemes for CPS.

97 MATHEMATICS AND COMPUTING↗
DOE OSTI2023

5G Security and AI/ML

Invited talk to IEEE Communication Society's SIG for AI and Machine Learning in Security.

5G Security↗
DOE OSTI2017

Implementing an Alternative Modeling Strategy for Closure of the Rainier Mesa Corrective Action Unit at the Nevada National Security Site - 17481

The strategy to close the Rainier Mesa/Shoshone Mountain (RMSM) Corrective Action Unit (CAU) of the Underground Test Area (UGTA) Project at the Nevada National Security Site (NNSS) is defined under a joint agreement between the State of Nevada, the U.S. Department of Energy (DOE) and the Department of Defense (DoD). That strategy required a corrective action investigation (CAI) to define the evolution of contaminated volumes of groundwater under uncertainty as a means to define a surface-projected contaminant boundary and serve as a basis for longer term monitoring. As the initial phase of the CAI was nearing completion in 2012, concerns were raised as to whether the original Federal Facility Agreement and Consent Order (FFACO) strategy was achievable. This was evident when the complexity of the system and the additional costs required to sufficiently characterize it were judged to be out of balance with the overall perceived risks (low) associated with this particular CAU. As a result, an Alternative Modeling Strategy (AMS) and New FFACO Strategy Decision Process for UGTA RM/SM CAU were approved in November 2013. The AMS removes the requirement for developing ensembles of 3D contaminant transport simulations and replaces it with a simpler one requiring the generation of multiple 1D streamline models. These are meant to encompass a range of alternative, yet plausible release and transport scenarios as a means to bound the overall lateral extent of contaminant transport. The new Decision Process is streamlined and progresses from the revised CAI stage, to an external peer review, and then, upon favorable evaluation, directly to a closure stage. Although the project has suffered some delays from implementation of the new strategy, the new process of achieving closure is expected to save several years in time and several million dollars over the original process while still protecting human health and the environment over the 1,000-year compliance period stipulated in the FFACO. (authors)

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DOE OSTI2015

Sustainable disposition of unneeded materials and chemicals at Y-12 national security complex - 15181

The Y-12 National Security Complex (Y-12) strives to integrate sustainability into all aspects of operations. In 2006, Y-12 conducted a site inventory to identify Unneeded Materials and Chemicals (UMC). The final inventory included over 9,400 materials and equipment and over 9,000 chemicals. A cross-functional UMC Project Team (Team) was established to manage and facilitate disposition of inventory items. A Site Plan was developed to outline the strategy to methodically disposition UMC's with the commitment to put sustainability practices first. The Team works to overcome challenges and find new lives for inventory items prior to dispositioning the materials as waste. Cost-effective strategies are used to transfer UMC items to a new owner. The Team utilizes a systematic disposition evaluation process, which does not simply manage UMC's as waste but focuses on reuse with waste disposal as last resort. The dedicated efforts of the Team to divert items from disposal as waste are reflected in the results. Through Fiscal Year 2013, 35 percent of all chemicals and 55 percent of equipment and materials have been reused or recycled. Through Fiscal Year 2013, the Team has dispositioned over 9.62 million pounds of materials (11,600 items) and down-posted over 97,000 square feet of radiological areas. In Fiscal Year 2014, a UMC Phase II inventory was developed to address UMCs that have accumulated since the original inventory was finalized. Lessons learned from the original UMC scope are being applied to phase II activities. (authors)

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DOE OSTI2015

Vadose zone monitoring at the radioactive waste management sites at the Nevada national security site - 15294

Two lysimeter facilities continuously monitor the vadose zone at the radioactive waste disposal sites at the Nevada National Security Site. The time-series data collected at these facilities support the performance assessments of the radioactive waste disposal sites, the closure cover designs, and the long-term monitoring decisions for these sites. The Weighing Lysimeter Facility at the Area 5 Radioactive Waste Management Site (RWMS) consists of a bare-soil weighing lysimeter and a vegetated weighing lysimeter. The upper surfaces of both weighing lysimeters are exposed to precipitation. The Drainage Lysimeter Facility at the Area 3 RWMS includes bare-soil lysimeters that receive precipitation or precipitation supplemented with irrigation equal to double precipitation and vegetated lysimeters that have the same upper boundary conditions as the bare-soil lysimeters. Lysimeter sensors are connected to data-loggers that are accessed remotely for data acquisition. Lysimeter water balance measurements show the arid climate and native vegetation at the NNSS provide a natural sustainable system to effectively prevent transport of contaminants from the RWMSs through the vadose zone to groundwater. Transport by infiltration and percolation of present day precipitation at the RWMSs is prevented. The native desert vegetation is adapted to extract moisture from very dry soils and maintains negative matric potentials at the base of the root zone effectively buffering the deep vadose zone from episodic precipitation events at the surface. The very negative matric potential at the base of the root zone effectively intercepts all infiltration from precipitation and draws moisture upward from the vadose zone below the root zone. This system is sustainable because it does not rely on engineered features and mimics the stable landscapes and no groundwater recharge of the current condition surrounding the RWMSs. The system depends on establishing native vegetation in the covers above the waste cells and a stable climate. (authors)

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DOE OSTI2016

Simulating Regional Groundwater Flow in the Vicinity of the Nevada National Security Site, Nye County, Nevada - 16104

The Death Valley Regional Groundwater Flow System (DVRFS) occupies an area of about 70,000 km{sup 2} in south-central Nevada and southeastern California. Interest in this system stems from the need to (1) understand the groundwater flow paths and travel times associated with potential migration of radioactive material from the Nevada National Security Site (NNSS) where underground nuclear testing was conducted from 1956 to 1992; (2) characterize the groundwater system in the vicinity of the proposed high-level radioactive waste repository at Yucca Mountain, Nev.; and (3) address a variety of potential effects from NNSS activities on users down gradient from the NNSS and Yucca Mountain. A single groundwater flow model of the DVRFS has been developed that integrates data and results of two previous regional-scale models and supports Department of Energy (DOE) programs at the NNSS. The numerical model was constrained by organizing hydrogeologic data and interpretations in three-dimensional (3D) geographic information systems and constructing a digital three-dimensional (3D) hydrogeologic framework model (HFM) to represent 27 hydrogeologic units (HGUs) and major structures in the DVRFS region. The 3D hydrogeologic data sets were discretized to 1,500 meters (m) grid cell resolution for input arrays required for the model. The DVRFS was simulated using the USGS 3D groundwater-flow modeling code MODFLOW-2000. Two examples showing how the DVRFS regional model is used by the DOE as part of waste management activities at the NNSS: (1) use of the regional model to provide the boundary conditions for site-scale models, and (2) use of the regional model to assess changes in hydraulic gradient and flow paths in the regional flow system resulting from changes in pumping in various areas of interest. (authors)

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