Results 31 to 40 of about 461,365 (301)

New views of solar energetic particles from the Advanced Composition Explorer [PDF]

, 2000
Since its launch in August 1997, the Advanced Composition Explorer has been measuring the elemental, isotopic, and ionic charge-state composition of solar energetic particles with three new, high-resolution instruments (SEPICA, SIS, and ULEIS).
Mewaldt, R. A.
core   +1 more source

Elemental, fatty acid, and protein composition of appendicoliths

Scientific Reports, 2022
Appendicoliths are commonly found obstructing the lumen of the appendix at the time of appendectomy. To identify factors that might contribute to their formation we investigated the composition of appendicoliths using laser ablation inductively coupled ...
James M. Prieto, Andrew W. Wang, Jonathan Halbach, David M. Cauvi, James M. D. Day, Milan Gembicky, Majid Ghassemian, Oswald Quehenberger, Karen Kling, Romeo Ignacio, Antonio DeMaio, Stephen W. Bickler   +11 more
doaj   +1 more source

Can we constrain interior structure of rocky exoplanets from mass and radius measurements? [PDF]

, 2015
We present an inversion method based on Bayesian analysis to constrain the interior structure of terrestrial exoplanets, in the form of chemical composition of the mantle and core size.
Alibert, Yann, Benz, Willy, Connolly, James A. D., Dorn, Caroline, Heng, Kevin, Khan, Amir, Tackley, Paul   +6 more
core   +2 more sources

Elemental ratios in stars vs planets

, 2015
Context. The chemical composition of planets is an important constraint for planet formation and subsequent differentiation. While theoretical studies try to derive the compositions of planets from planet formation models in order to link the composition
Alibert, Yann, Leya, Ingo, Marboeuf, Ulysse, Mezger, Klaus, Thiabaud, Amaury   +4 more
core   +1 more source

Stock delineation of striped snakehead, Channa striata using multivariate generalised linear models with otolith shape and chemistry data

Scientific Reports, 2021
Otoliths are commonly used to discriminate between fish stocks, through both elemental composition and otolith shape. Typical studies also have a large number of elemental compositions and shape measures relative to the number of otolith samples, with ...
Salman Khan, Hayden T. Schilling, Mohammad Afzal Khan, Devendra Kumar Patel, Ben Maslen, Kaish Miyan   +5 more
doaj   +1 more source

Determination of Some Elements in Legumes Using ICP-MS and EDXRF Methodology Applications

Acta Chimica Slovenica, 2021
The current study involves two analytical research techniques, inductively coupled plasma-mass spectrometry (ICP-MS) and energy dispersive X-ray fluorescence (EDXRF) spectroscopy, used to determine the elemental composition of different legumes usually ...
Lovro Sinkovič, Marijan Nečemer, Barbara Pipan, Vladimir Meglič   +3 more
doaj   +1 more source

Observations of Anomalous Cosmic Rays at 1 AU [PDF]

, 2000
Anomalous cosmic rays (ACRs) provide a sensitive probe of the access of energetic particles to the inner heliosphere, varying in intensity by more than two orders of magnitude during the course of the solar cycle.
Christian, E. R., Cohen, C. M. S., Cummings, A. C., Leske, R. A., Mewaldt, R. A., Slocum, P. L., Stone, E. C., von Rosenvinge, T. T., Wiedenbeck, M. E.   +8 more
core   +1 more source

A New Measurement of Cosmic Ray Composition at the Knee

, 1997
The Dual Imaging Cerenkov Experiment (DICE) was designed and operated for making elemental composition measurements of cosmic rays near the knee of the spectrum at several PeV.
Axford W. I., Bell A. R., Bell A. R., Boothby K., C. G. Larsen, D. B. Kieda, J. Knapp, K. Boothby, K. D. Green, Krymsky G. F., Lagage P. O., Lessard R. W., M. Chantell, Plaga R., S. P. Swordy, Swordy S. P.   +15 more
core   +1 more source

Elemental surface analysis at ambient pressure by electron-induced x-ray fluorescence [PDF]

, 2003
The development of a portable surface elemental analysis tool, based on the excitation of characteristic x rays from samples at ambient pressure with a focused electron beam is described.
Barsic, David N., Feldman, Jason E., George, Thomas, Scherer, Axel, Wilcox, Jaroslava Z.   +4 more
core   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source