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Results for “current status”
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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Current status of laboratory opacity measurements at solar interior conditions.
Abstract not provided.
Reliability of GaN power devices: Current status and Future challenges.
Abstract not provided.
Commercialization of Perovskite PV - Current Status and Future Challenges.
Abstract not provided.
Current Status of the Achilles Event Generator
Cross Experiment Working Group Seminar
Final Design and Current Status of the Mu2e Crystal Calorimeter
The Mu2e experiment at Fermi National Accelerator Laboratory will search for the CLFV neutrino-less conversion of a negative muon into an electron in the field of an aluminum nucleus. The Mu2e design has been studied to improve the single event sensitivity of four orders of magnitude with respect to the previous experiments and provide an indirect probe for New Physics energy scales up to thousands TeV. Mu2e is composed of a tracker, an electromagnetic calorimeter, and an external veto for cosmic rays. The calorimeter provides a powerful particle identification and an online trigger while operating in a harsh environment. We report on the status of the calorimeter components production, the quality assurance tests, and the tests performed with a reduced-scale prototype.
Current Status of the Finite-Element Fluid Solver (COFFE) within HPCMP CREATE™-AV Kestrel
COFFE is the finite-element flow solver within HPCMP CREATE-AV™ Kestrel. Kestrel supports a range of flow solver fidelity options to support the DoD acquisition community, and COFFE targets the need for high-fidelity flow solutions. The COFFE solver, like all components of Kestrel, is under continual development as part of the CREATE-AV program. This paper documents the usage of COFFE on several workshop cases, which demonstrate new Kestrel capabilities and exercise features unique to COFFE. It concludes with a brief discussion of upcoming features in development for COFFE.
Synchrotron X-ray Radiation (SXR) in Medical Imaging: Current Status and Future Prospects
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Polybenzimidazole-Based Polymer Electrolyte Membranes for High-Temperature Fuel Cells: Current Status and Prospects
Polymer electrolyte membrane fuel cells (PEMFCs) expect a promising future in addressing the major problems associated with production and consumption of renewable energies and meeting the future societal and environmental needs. Design and fabrication of new proton exchange membranes (PEMs) with high proton conductivity and durability is crucial to overcome the drawbacks of the present PEMs. Acid-doped polybenzimidazoles (PBIs) carry high proton conductivity and long-term thermal, chemical, and structural stabilities are recognized as the suited polymeric materials for next-generation PEMs of high-temperature fuel cells in place of Nafion® membranes. This paper aims to review the recent developments in acid-doped PBI-based PEMs for use in PEMFCs. The structures and proton conductivity of a variety of acid-doped PBI-based PEMs are discussed. More recent development in PBI-based electrospun nanofiber PEMs is also considered. The electrochemical performance of PBI-based PEMs in PEMFCs and new trends in the optimization of acid-doped PBIs are explored.
The Landscape of RNA-Protein Interactions in Plants: Approaches and Current Status
RNAs transmit information from DNA to encode proteins that perform all cellular processes and regulate gene expression in multiple ways. From the time of synthesis to degradation, RNA molecules are associated with proteins called RNA-binding proteins (RBPs). The RBPs play diverse roles in many aspects of gene expression including pre-mRNA processing and post-transcriptional and translational regulation. In the last decade, the application of modern techniques to identify RNA–protein interactions with individual proteins, RNAs, and the whole transcriptome has led to the discovery of a hidden landscape of these interactions in plants. Global approaches such as RNA interactome capture (RIC) to identify proteins that bind protein-coding transcripts have led to the identification of close to 2000 putative RBPs in plants. Interestingly, many of these were found to be metabolic enzymes with no known canonical RNA-binding domains. Here, we review the methods used to analyze RNA–protein interactions in plants thus far and highlight the understanding of plant RNA–protein interactions these techniques have provided us. We also review some recent protein-centric, RNA-centric, and global approaches developed with non-plant systems and discuss their potential application to plants. We also provide an overview of results from classical studies of RNA–protein interaction in plants and discuss the significance of the increasingly evident ubiquity of RNA–protein interactions for the study of gene regulation and RNA biology in plants.
The Fight against Plant-Parasitic Nematodes: Current Status of Bacterial and Fungal Biocontrol Agents
Plant-parasitic nematodes (PPNs) are among the most notorious and underrated threats to food security and plant health worldwide, compromising crop yields and causing billions of dollars of losses annually. Chemical control strategies rely heavily on synthetic chemical nematicides to reduce PPN population densities, but their use is being progressively restricted due to environmental and human health concerns, so alternative control methods are urgently needed. Here, we review the potential of bacterial and fungal agents to suppress the most important PPNs, namely Aphelenchoides besseyi, Bursaphelenchus xylophilus, Ditylenchus dipsaci, Globodera spp., Heterodera spp., Meloidogyne spp., Nacobbus aberrans, Pratylenchus spp., Radopholus similis, Rotylenchulus reniformis, and Xiphinema index.
The Symmetry Energy: Current Status of Ab Initio Predictions vs. Empirical Constraints
Infinite nuclear matter is a suitable laboratory to learn about nuclear forces in many-body systems. In particular, modern theoretical predictions of neutron-rich matter are timely because of recent and planned experiments aimed at constraining the equation of state of isospin-asymmetric matter. For these reasons, we have taken a broad look at the equation of state of neutron-rich matter and the closely related symmetry energy, which is the focal point of this article. Its density dependence is of paramount importance for a number of nuclear and astrophysical systems, ranging from neutron skins to the structure of neutron stars. We review and discuss ab initio predictions in relation to recent empirical constraints. We emphasize and demonstrate that free-space nucleon–nucleon data pose stringent constraints on the density dependence of the neutron matter equation of state, which essentially determines the slope of the symmetry energy at saturation.
CURRENT STATUS AND PROSPECTS OF ELECTROTHERMAL PROPULSION
Survey of the status of electrothermal propulsion from engine development viewpoint and discussion of arc jet and resistojet engines
Current status of the solid-propellant flight- test vehicle
Solid propellant rocket vehicles
Current Status of Drift Field Solar Cells
Drift field solar cells for improved radiation resistance
The Icing Problem: Current Status of Naca Techniques and Research
No abstract available
Current status and opportunities for improved high-temperature materials for advanced turbojet engines
Material development review of high temperature materials, superalloys, alloys, and refractory metals for turbojet engines
Current status of plane crack toughness testing
Design and testing of crack notched specimens for determining resistance of materials to unstable mode crack extension under plain strain conditions