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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 73 records · Page 4

Addendum: Heliconical smectic phases formed by achiral molecules

Addendum to: Nature Communications https://doi.org/10.1038/s41467-017-02626-6. We would like to make our readers aware of the related publications by S.P. Sreenilayam et al. (Nat. Commun. 7, 11369 (2016) and Phys. Rev. Mat. 1, 035604 (2017)), which report the spontaneous helix formation in a polar smectic liquid crystal phase made of achiral bent-core mesogens.

99 GENERAL AND MISCELLANEOUS↗

Note: Derivation of two-photon circular dichroism—Addendum to “Two-photon circular dichroism” [J. Chem. Phys. 62, 1006 (1975)]

This addendum shows the detailed derivation of the fundamental equations for two-photon circular dichroism which are given in a very condensed form in the original publication [I. Tinoco, J. Chem. Phys. 62, 1006 (1975)]. In addition, some minor errors are corrected and some of the derivations in the original publication are commented.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗

Addendum: Cosmological dependence of non-resonantly produced sterile neutrinos

In this addendum to the article JCAP 12 (2019) 047 on the cosmological dependence of non-resonantly produced sterile neutrinos we discuss, using an analytic treatment, the parameter regions of large active-sterile neutrino mixing angles where sterile neutrinos can approach thermalization. We show that these additional considerations affect only large active-sterile neutrino mixing already rejected by different limits. Hence, the allowed sterile neutrino parameter regions are unaffected.

79 ASTRONOMY AND ASTROPHYSICS↗

Addendum to ''s-wave scattering for deep potentials with attractive tails falling off faster than -1/r{sup 2}''

In a recent work, we derived a formula for the elastic s-wave phase shifts for deep potentials with attractive tails vanishing faster than 1/r{sup 2} asymptotically [Phys. Rev. A 84, 032701 (2011)]. As an addendum to that work, we reformulate its key result, i.e., the formula for the scattering phase shift {delta}{sub 0}, in such a way that the contributions independent of the short-range influence of the full potential are explicitly expressed in terms of the amplitudes for transmission through and quantum reflection by the nonclassical region of the potential tail.

71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗

Addendum to ''Scattering of twisted particles: Extension to wave packets and orbital helicity''

In a recent work [Phys. Rev. A 84, 033804 (2011)] we considered elastic scattering of a twisted particle from a plane wave and studied how the orbital helicity of the twisted particle changes after scattering. We showed that for realistic beams the relative change can be small, |m{sup '}-m|/m<<1, thus resolving a controversy which existed in the literature. In this Addendum, using a more accurate analysis, we argue that in the kinematics of Compton backscattering a stronger statement is true: in fact m{sup '}{approx_equal}m, and the difference |m{sup '}-m| even by a single unit is already suppressed.

71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗

Addendum: Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{NN}}$ = 5.02 TeV

This is an addendum to the article “Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{NN}}$ = 5.02 TeV” published in [Phys. Rev. C 102, 055204 (2020)]. We update the extracted charm cross section at midrapidity given in Table III and Fig. 4 (left) of the original publication with the fragmentation fractions of charm quarks in 𝑝⁢𝑝 collisions published in [Phys. Rev. D 105, L011103 (2022)].

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗

Addendum to "Testing meson portal dark sector solutions to the MiniBooNE anomaly at CCM"

In Aguilar-Arevalo et al. [Phys. Rev. D 109, 095017 (2024)], we explored various effective field theories that could explain the MiniBooNE excess involving long-lived particles produced from charged meson decays and the sensitivity of the Coherent CAPTAIN Mills experiment to these models. In this addendum, we extend the analysis to project sensitivity of upcoming MicroBooNE data to the long-lived particle models considered in the previous work. We find that a dedicated MicroBooNE analysis of the single photon final state with longer exposure and improved signal efficiency will be sensitive to these new physics explanations of the MiniBooNE excess, and could rule them out with a null observation at the 95% confidence level.

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗

2011 Addendum to the SNL/NM SWEIS Supplemental Information Source Documents

This document contains updates to the Supplemental Information Sandia National Laboratories/New Mexico Site-Wide Environmental Impact Statement Source Documents that were developed in 2010. In general, this addendum provides calendar year 2010 data, along with changes or additions to text in the original documents.

99 GENERAL AND MISCELLANEOUS↗

Demand Response Potential for California SubLAPs and Local Capacity Planning Areas: An Addendum to the 2025 California Demand Response Potential Study – Phase 2

The 2025 California Demand Response Potential Study Phase 2 Report1 was released on March 1, 2017, and described a range of pathways for Demand Response (DR) to support a clean, stable, and cost-effective electric grid for California. One of the Report’s key findings was that while there appears to be very low future value for untargeted DR Shed aimed at system-wide peak load conditions, there could be significant value for locally focused Shed resources. Although the dynamics of renewable capacity expansion have reduced the pressure to build new thermal generation in general, there are still transmission-constrained areas of the state where load growth needs to be managed with the addition of new local capacity, which could include DERs and/or DR. This Addendum to the Phase 2 Report presents a breakdown of the expected future “Local Shed” DR potential at a finer geographic resolution than what is available in the original report, with results summarized by SubLAP and Local Capacity Area (LCA).

24 POWER TRANSMISSION AND DISTRIBUTION↗

21-ID ESM Radiation Shielding Analysis - Addendum

This report, an addendum to the BNL report number 217, describes the shielding analysis carried out with the pink beam baffle slits (PBBS) in the geometry model using gas bremsstrahlung (GB) and synchrotron radiation (SR) as sources of radiation.

36 MATERIALS SCIENCE↗

Addendum to the Maximum Current of the Linac

The purpose of this technical note is to supplement the information provided in NSLS-II Technical Note 105: Maximum Current of the NSLS-II Linac. This is included in the Linac Commissioning SAD Addendum as Appendix B. Technical Note 105 made some assumptions which have been subjected to further analysis. This technical note will reexamine some of these assumptions. This technical note includes additional analysis of: 1. Updated PARMELA model of the linac 2. Updated beam loading model 3. Gun faults which lead to full discharge of the gun and high voltage deck 4. Consideration of the case where the gun can emit more charge than has been measured by manufacturer, but within cathode specifications. In all cases the linac ASE is not violated either of operation because not enough current is generated or recovery from the fault will take enough time that violating the ASE is not possible.

36 MATERIALS SCIENCE↗

Phase-aware Equation of State Lookups: Addendum

This is a short, written addendum to the talk given on the progress and status of the phase aware multiphase project LA-UR 09-30168. The equation of state (EOS) project is working toward treating the material representation of phases, solids and liquids, as separate tables in an effort have more control of the physical material representations as required data for hydrocodes.

36 MATERIALS SCIENCE↗

A novel poplar biomass germplasm resource for functional genomics and breeding. Final report addendum

In this report, we report and update activities associated with co-PI Groover. This report is an addendum to the full report detailing genomic objectives associated with the project, submitted by PI Luca Comai and co-PI Isabelle Henry. The Groover lab is leading the efforts to produce and replicate poplar irradiation and control hybrids genotypes, and phenotype the hybrids. These efforts are coordinated with Comai and Henry to ensure the most promising hybrids are included for field and greenhouse-based studies, and to link the genomic and phenotypic analyses.

09 BIOMASS FUELS↗

Bryan Mound InSAR Analysis U.S. Strategic Petroleum Reserve (2018 Addendum)

The U.S. Strategic Petroleum Reserve (SPR) is a stockpile of emergency crude oil to be tapped into if a disruption in the nation's oil supply occurs. The SPR comprises of four underground salt dome sites. Subsidence surveys have been conducted either annually or biennially at all four sites over the life of the program. Monitoring of surface behavior is a first line defense to detecting possible subsurface cavern integrity issues. Over the life of the Bryan Mound site, subsidence rates over abandoned Cavern 3 have continuously been the highest at the site. In an effort to try and understand the subsurface dynamics, specifically over Bryan Mound Cavern 3, interferometric synthetic aperture radar (InSAR) data has been collected since October 2015, which allows for the acquisition of a greater density of data over a higher frequency providing improved spatiotemporal resolution. Currently, satellite images are acquired from two orbit geometries allowing for a 2-D analysis, which provides both the true vertical and east-west horizontal displacement rates. This report serves as an addendum to the 2017 report, Bryan Mound InSAR Analysis, U.S. Strategic Petroleum Reserve, SAND 2017-6679. The latest data display an improvement in point density and precision, providing a higher confidence in the results. The results confirm, as seen in the previous analysis, that the fastest surface deformation is occurring over the southwest region of the site, where abandoned Cavern 3 is located. In addition, the horizontal displacement analyses suggest a geologic feature, such as a fault, may be contributing to the higher rates observed over Cavern 3. A loss in cavern integrity would significantly impact the site surface infrastructure.

02 PETROLEUM↗

NETL UPGrants Addendum to the CO2U LCA Guidance Toolkit

The NETL UPGrants Addendum provides additional guidance and changes to the Carbon Dioxide Utilization Life Cycle Analysis Guidance for the U.S. DOE Office of Fossil Energy and Carbon Management, Version 2.0 to make it more applicable to vendors preparing life cycle analyses for the Utilization Procurement Grants program.

20 FOSSIL-FUELED POWER PLANTS↗