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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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23 records · Page 2
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on HI3 by Materials Project

HI3 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of two HI3 clusters. H is bonded in a single-bond geometry to one I atom. The H–I bond length is 1.65 Å. There are three inequivalent I sites. In the first I site, I is bonded in a 2-coordinate geometry to one I atom. The I–I bond length is 2.72 Å. In the second I site, I is bonded in a single-bond geometry to one H and one I atom. The I–I bond length is 3.45 Å. In the third I site, I is bonded in a bent 150 degrees geometry to two I atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y3H by Materials Project

Y3H crystallizes in the orthorhombic Pmma space group. The structure is two-dimensional and consists of two Y3H sheets oriented in the (0, 0, 1) direction. there are four inequivalent Y sites. In the first Y site, Y is bonded in a single-bond geometry to two equivalent Y and one H atom. Both Y–Y bond lengths are 3.51 Å. The Y–H bond length is 2.19 Å. In the second Y site, Y is bonded in a linear geometry to four equivalent Y and two equivalent H atoms. There are two shorter (3.65 Å) and two longer (3.70 Å) Y–Y bond lengths. Both Y–H bond lengths are 2.26 Å. In the third Y site, Y is bonded in a bent 120 degrees geometry to one Y and two equivalent H atoms. The Y–Y bond length is 3.61 Å. Both Y–H bond lengths are 2.20 Å. In the fourth Y site, Y is bonded to twelve Y atoms to form YY12 cuboctahedra that share corners with six equivalent YY12 cuboctahedra, edges with two equivalent YY12 cuboctahedra, edges with eight equivalent HY4 tetrahedra, and faces with two equivalent YY12 cuboctahedra. Both Y–Y bond lengths are 3.67 Å. H is bonded to four Y atoms to form HY4 tetrahedra that share corners with three equivalent HY4 tetrahedra and edges with four equivalent YY12 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2024

Proceedings of the Workshop for Applied Nuclear Data Activities WANDA 2022

On February 28 – March 4, 2022, the Nuclear Data Interagency Working Group (NDIAWG) hosted the 5-day virtual Workshop for Applied Nuclear Data (WANDA2022) to facilitate interagency collaboration on nuclear data for applications. This year’s focus was nuclear data for space applications, but also included photon reactions and transport, reactions on unstable nuclei, and data adjustment topics. The annual WANDA workshops are planned by the Nuclear Data Working Group (NDWG) with the goal of assembling users and producers of nuclear data to provide input to identify and prioritize nuclear data needs and to suggest solutions to address those needs. The workshop consisted of talks by agency program managers, six topic focused road mapping sessions and a review of NDIAWG-funded projects. More than 350 attendees represented national laboratories, universities, and federal agencies, as well as international organizations and industry. The proceedings presented herein summarize the workshop’s content, highlight important outcomes, and document attendees’ recommendations.

71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗
NASA NTRS1987

Lidar technology measurements and technology: Report of panel

Lidar is ready to make an important contribution to tropospheric chemistry research with a variety of spaceborne measurements that complement the measurements from passive instruments. Lidar can now be considered for near-term and far-term space missions dealing with a number of scientifically important issues in tropospheric chemistry. The evolution in the lidar missions from space are addressed and details of these missions are given. The laser availability for space missions based upon the technical data is assessed.

Browell, Edward V.↗