Results 31 to 40 of about 123,835 (272)

Towards a global interpretation of dual nitrate isotopes in surface waters [PDF]

, 2019
Modern anthropogenic activities have significantly increased nitrate (NO3-) concentrations in surface waters. Stable isotopes (delta N-15 and delta O-18) in NO3- offer a tool to deconvolute some of the human-made changes in the nitrogen cycle.
Boeckx, Pascal, Gooddy, DC, Venkiteswaran, JJ   +2 more
core   +2 more sources

Elution time changes due to anomalous DEP effects in microchannels under uniform and non-uniform electric fields

Sensing and Bio-Sensing Research, 2016
Conventional dielectrophoresis (DEP) force on cell and particle is altered in the proximity of the electrodes due to the failure of the dipole approximation. In these conditions an anomalous DEP (aDEP) force rules the particle manipulation.
Antonino Magliano, Massimo Camarda, Salvatore Francesco Lombardo, Rossana Di Martino, Michele Cascio, Alessandra Romano, Luigi Minafra, Giorgio Russo, Mariacarla Gilardi, Francesco Di Raimondo, Silvia Scalese, Antonino La Magna   +11 more
doaj   +1 more source

Surfactant flow between a Plateau border and a film during foam fractionation [PDF]

, 2016
A fluid mechanics problem relevant to foam fractionation processes is analysed. Specifically the fluid flow field transporting surfactant from foam Plateau borders (fed with surfactant-rich material) towards comparatively surfactant-lean foam films is ...
Giavedoni, Maria Delia, Grassia, Paul, Martin, Peter James, Ubal, Sebastian, Vitasari, Denny   +4 more
core   +1 more source

Controlled Disassembly and Purification of Functional Viral Subassemblies Using Asymmetrical Flow Field-Flow Fractionation (AF4)

Viruses, 2018
Viruses protect their genomes by enclosing them into protein capsids that sometimes contain lipid bilayers that either reside above or below the protein layer.
Katri Eskelin, Minna M. Poranen
doaj   +1 more source

Determining the Elemental and Isotopic Composition of the preSolar Nebula from Genesis Data Analysis: The Case of Oxygen [PDF]

, 2017
We compare element and isotopic fractionations measured in solar wind samples collected by NASA's Genesis mission with those predicted from models incorporating both the ponderomotive force in the chromosphere and conservation of the first adiabatic ...
Burnett, D. S., Guan, Y., Heber, V. S., Hervig, R., Huss, G. R., Jurewicz, A. J. G., Koeman-Shields, E. C., Laming, J. Martin, McKeegan, K. D., Nittler, L. R., Reisenfeld, D. B., Rieck, K. D., Wang, J., Wiens, R. C., Woolum, D. S.   +14 more
core   +3 more sources

The Significance of Multiple Saturation Points in the Context of Polybaric Near-fractional Melting [PDF]

, 2004
Experimental petrologists have successfully located basaltic liquid compositions parental to mid-ocean ridge basalt that are, within experimental resolution, multiply saturated with three-phase harzburgite or four-phase lherzolite assemblages on their ...
Asimow, Paul D., Longhi, John
core   +2 more sources

Comparison of Miniaturized and Conventional Asymmetrical Flow Field-Flow Fractionation (AF4) Channels for Nanoparticle Separations

Separations, 2017
The performance of a miniaturized channel for the separation of polymer and metal nanoparticles (NP) using Asymmetrical Flow Field-Flow Fractionation (AF4) was investigated and compared with a conventional AF4 system.
Zengchao You, Florian Meier, Steffen Weidner   +2 more
doaj   +1 more source

Non-WKB Models of the FIP Effect: The Role of Slow Mode Waves

, 2011
A model for element abundance fractionation between the solar chromosphere and corona is further developed. The ponderomotive force due to Alfven waves propagating through, or reflecting from the chromosphere in solar conditions generally accelerates ...
Allan, Avrett, Banaszkiewicz, Brooks, Bryans, Campos, Carlsson, Cranmer, Cranmer, Cranmer, Feldman, Feldman, Feldman, Ferland, Giammanco, Giammanco, J. Martin Laming, Kasper, Khomenko, Ko, Laming, Laming, Laming, Laming, Landau, Litwin, Patsourakos, Phillips, Schwadron, Sylwester, Sylwester, Widing, Wood   +32 more
core   +1 more source

Soil water stable isotopes reveal evaporation dynamics at the soil–plant–atmosphere interface of the critical zone [PDF]

, 2017
Acknowledgements. We are thankful for the support by Audrey Innes during all laboratory work. We further thank Jonathan Dick for running the isotope analysis of precipitation samples and Annette C. Raffan for her support in the soil texture analysis.
Soulsby, Chris, Sprenger, Matthias, Tetzlaff, Doerthe   +2 more
core   +3 more sources

Isospin fractionation in the nucleon emissions and fragment emissions in the intermediate energy heavy ion collisions

, 2003
The degree of isospin fractionation is measured by $(N/Z)_{n}$ / $(N/Z)_{N_{imf}}$, where $(N/Z)_{n}$ and $(N/Z)_{N_{imf}}$ are the saturated neutron-proton ratio of nucleon emissions (gas phase) and that of fragment emissions (liquid phase) in heavy ion
Aichelin, Aichelin, Alkahzov, Baran, Bertsch, Colonna, Danielewicz, Di Toro, Hang Liu, Jian-Ye Liu, Klakow, Kunde, Li, Li, Li, Li, Li, Liu, Liu, Liu, Miller, Pak, Pak, Pak, Pak, Rami, Reinhard, Sobotka, Sobotka, Tsang, Udo Schröder, Wada, Wen-Jun Guo, Westfall, Westfall, Xu, Yang, Yennello, Yennello, Yong Zhong Xing   +39 more
core   +1 more source