Tektite compositional trends and experimental vapor fractionation of silicates.
Tektite composition considered from results of high temperature vapor fractionation of silicates
TEKTITE↗
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Results for “fractionalization”
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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Elemental Fractionation In Ultraviolet Laser Ablation of Igneous Silicate Minerals Relevant to Mars
Laser ablation has significant potential for terrestrial and extraterrestrial remote sampling applications if elemental fractionation can be understood and controlled.
ablation fractionation stoichiometry silicate mine↗
Porosity Area Fraction Analysis of Bonded Borosilicate Specimens From in-Situ Optical Imagery
Image segmentation methods are routinely used to analyze data derived in nondestructive testing scenarios. A typical problem in this area is to estimate porosity from X-ray Computed Tomography (CT) inspections. This investigation aims to understand the effectiveness of open-source image segmentation methods for porosity estimation from optical images in the context of strength analysis of bonded materials and provides a benchmark of performance against a standard commercial software package. The rank ordering of the specimens by porosity area fraction is consistent across both methods.
Porosity area fraction↗
Porosity Area Fraction Analysis of Bonded Borosilicate Specimens From in-Situ Optical Imagery
Image segmentation methods are routinely used to analyze data derived in nondestructive testing scenarios. A typical problem in this area is to estimate porosity from X-ray Computed Tomography (CT) inspections. This investigation aims to understand the effectiveness of open-source image segmentation methods for porosity estimation from optical images in the context of strength analysis of bonded materials and provides a benchmark of performance against a standard commercial software package. The rank ordering of the specimens by porosity area fraction is consistent across both methods.
Porosity area fraction↗
Differential distribution of rna and protein in the ribosomal fractions of escherichia coli
Differential distribution of RNA and protein in ribosomal fractions of Escherichia coli
ESCHERICHIA↗
Fractional cell lethality approach to space radiation hazards
Radiation hazard evaluation for space flight by fractional cell lethality approach
SPACE FLIGHT↗
Organic synthesis in algal cells separated into age groups by fractional centrifugation.
Organic synthesis of high temperature chlorella separated into small or large cells by fractional centrifugation
INJURY↗
Organic synthesis in algal cells separated into age groups by fractional centrifugation.
Synthetic activity during nonsynchronized growth chlorella, separated into age groups by fractional centrifugation
GROWTH↗
Electron microscopic and biochemical characterization of Fraction 1 protein
High resolution electron microscopy of Fraction I protein from plant leaves
PROTEIN METABOLISM↗
Electron microscopic and biochemical characterization of fraction I protein.
Electron micrographs from fraction I protein of Chinese cabbage leaves, noting substructure in individual particle
PROTEIN↗
Equilibrium charge-state fractions of 0.2 to 6.5 Mev helium ions in carbon.
Measurement of equilibrium fractions of helium ions present in helium beams scattered at zero degrees through carbon foils
CARBON↗
Experimental coherent fractional frequency multiplier at S-band
Experimental circuit produces an efficient fractional frequency multiplier that will operate on a 5.6 mw, 2101.8 MHz input signal to achieve an output-to-input frequency ratio of 240/221. Step-recovery diodes used in all frequency-changing stages result in a coherent offset frequency.
Mostrum, R. A.↗
Measurement of effective delayed neutron fraction for NASA Zero Power Reactor I
Measurement of effective delayed neutron fraction for Zero Power Reactor I
NEUTRON↗
Study of short term phase stability. An experimental coherent fractional frequency multiplier for S-band
Development of coherent fractional frequency multiplier for S-band
FREQUENCY MULTIPLIER↗
On a continued fraction occurring in the theory of one-electron diatomic molecules.
Continued fraction in theory of electron energy for ground state of one-electron diatomic molecule near united atom
DIATOMIC MOLECULE↗
Determining the effectiveness of fractional G levels in reducing circulatory deconditioning of space flight crews - A new technique and preliminary results.
Fractional g levels for reducing effects of conditioning to zero gravity on prolonged space flights
WEIGHTLESSNESS↗
Chemical fractionations in meteorites. II.
Abundance of volatile elements in meteorites, comparing chondrite decrease for evidence of fractionations in solar nebula
CARBONACEOUS METEORITE↗
Rare-earth fractionation and magmatic processes.
Smooth rare earth fractionation by chemical magmatic processes in basic silicate materials in earth, discussing abundance patterns
Schilling, J.-G.↗