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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 667 records · Page 37

All sources NASA NTRS DOE OSTI

DOE OSTI2018

Fundamental study of the bulge structure generated in laser polishing process

Not Available

Chen, Chen↗

DOE OSTI2020

In situ capture of spatter signature of SLM process using maximum entropy double threshold image processing method based on genetic algorithm

Not Available

Yang, Dekun↗

DOE OSTI2015

Investigation of p-dopant diffusion in polymer films and bulk heterojunctions: Stable spatially-confined doping for all-solution processed solar cells

Explore the source record for details and available documents.

Dai, An↗

DOE OSTI2019

Distributionally robust optimization with correlated data from vector autoregressive processes

Not Available

Dou, Xialiang↗

DOE OSTI2017

Upscale methodology for gas huff-n-puff process in shale oil reservoirs

Not provided.

Energy & Fuels↗

DOE OSTI2019

Chemometrics coupled with UPLC-MS/MS for simultaneous analysis of markers in the raw and processed Fructus Xanthii, and application to optimization of processing method by BBD design

Not Available

Jiang, Hai↗

DOE OSTI2016

Processable conductive graphene/polyethylene nanocomposites: Effects of graphene dispersion and polyethylene blending with oxidized polyethylene on rheology and microstructure

Poor dispersion of graphene in non-polar polymer matrices creates composites with limited applications. A method to improve the dispersion of graphene in polyethylene (PE) via blending PE with oxidized PE (OPE) is examined. Graphene was produced by simultaneous thermal exfoliation and reduction of graphite oxide. Nanocomposites of graphene with PE as well as graphene with PE/OPE-blends were prepared by solvent blending. Improved dispersion of graphene in PE/OPE blends substantially decreases percolation from both rheological (0.3 vol%) and electrical (0.13 vol%) measurements compared to neat PE nanocomposites (1 and 0.29 vol%), respectively. A universal Brownian dispersion of graphene in polymers was concluded similar to that of nanotubes, following the Doi-Edwards theory. Micromechanical models, such as Mori-Tanaka and Halpin-Tsai models, modeled the mechanical properties of the nanocomposites. The nanocomposites microstructure, studied by small angle x-ray scattering, confirmed better dispersion of graphene at lower loadings and the formation of surface fractals in the blend/graphene nanocomposites; whereas only mass fractals were observed in neat PE/graphene nanocomposites.

graphene↗

DOE OSTI2017