Results 111 to 120 of about 572,691 (264)
, 1982 International audienceA continuous deuterium excess profile (d = δD − 8δ18O) was obtained from the Dome C ice core spanning ∼ 32,000 yr. It exhibits significant variations over this period.
Merlivat, Liliane +5 more
core +1 more source
Coupling Fluid Neutrals to Gyrokinetic Plasma Dynamics for Edge and SOL Turbulence Simulations
Contributions to Plasma Physics, EarlyView.ABSTRACT Accurate modeling of turbulent transport in magnetic confinement fusion devices requires extending first‐principles gyrokinetic simulations from the core to the edge and scrape‐off layer (SOL), where additional physics—particularly plasma–neutrals interactions—must be included.
Sabine Ogier‐Collin +3 more
wiley +1 more source
Edge Fluid Turbulence Simulations of Stellarators With GRILLIX
Contributions to Plasma Physics, EarlyView.ABSTRACT The edge fluid turbulence code GRILLIX has recently been extended from axisymmetric tokamak geometries to support 3D stellarator configurations. Following successful proof‐of‐principle simulations published in Stegmeir et al., we present here a comprehensive simulation of the Wendelstein 7‐AS stellarator.
Andreas Stegmeir +4 more
wiley +1 more source
The Relationship Between Deuterium Excess and Uranium Groundwater Concentrations in Whitehall, Montana [PDF]
, 2019 Uranium can become elevated in the environment and pose a human health risk to water resources. Therefore, it is important to understand the origin, transport and concentration of uranium in the environment.
Dyreson, Eric G., Wight, Daniel P.
core
First SOLPS‐ITER Simulation Study of Japanese DEMO on Leakage of Seeded Ar Impurity
Contributions to Plasma Physics, EarlyView.ABSTRACT For JA DEMO, one of the grand challenges is efficiently handling the extreme power loads onto plasma‐facing components, particularly the divertor targets. Impurity seeding is an essential strategy for increasing the radiation losses and thereby reducing the heat load on the targets.
Hang Si +6 more
wiley +1 more source
Shuitu baochi yanjiu, 2012 The rainfall events occurred from 2001 to 2009 in Jiangjiaou watershed was analyzed.The rainfall frequency and cumulative frequency of rainfall before triggering of a debris flow can be fitted by power exponent distribution and logarithmic distribution ...
GUO Xiao-jun1 +3 more
doaj
Drug Testing and Analysis, EarlyView.This method enables simultaneous carbon isotope confirmation of 6‐oxo‐androstenedione and testosterone markers from a single urine aliquot, using bench‐top extraction, two preparative HPLC steps with intermediate acetylation, and GC/C/IRMS analysis. It was fully validated according to WADA requirements, and real samples demonstrated its fitness for ...
Fábio Azamor de Oliveira +7 more
wiley +1 more source
European Journal of Inorganic Chemistry, EarlyView.Rollover cyclometalation is a distinctive variant of classical cyclometalation where a chelated heterocyclic ligand undergoes internal rotation, releasing one donor atom from coordination and subsequently activating a remote C─H bond with high regioselectivity.
Antonio Zucca, Maria I. Pilo
wiley +1 more source
Calorimetric study of deuterium isotope effects in water-acetone systems
, 1981 Molar excess enthalpies of H20 + (CH3),CO, H20 + (CD3),C0, D20 + (CH3)2C0 and D20+ (CD3)2CO at 298.15 K are reported and, in the case of the first system, compared with earlier studies.
DV Fenby, JR Khurma
core +1 more source
Protic N‐Heterocyclic Carbene Ligands in Ruthenium‐Catalyzed Transfer Hydrogenation
Helvetica Chimica Acta, EarlyView.The activity of ruthenium transfer hydrogenation catalysts is strongly influenced by the number of protic units in the N‐heterocyclic carbene ligand. Doubly protic NH, NH ligands induce slower activity than mono‐protic NH, NMe ligands, while NMe, NMe ligands display the highest activity, suggesting metal‐ligand cooperativity is not beneficial for these
Gianluca Righetti +5 more
wiley +1 more source