Crisis or Catharsis in Lead Isotope Analysis? [PDF]
Journal of Mediterranean Archaeology, 1995 Since the nineteenth century, views on the possibility of determining the provenance of metal artefacts seems to have gone through periodic cycles like those of the economy. The introduction of a new analytical method is usually greeted with enthusiasm and high hopes.
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Actinide isotopic analysis systems [PDF]
, 1990 This manual provides instructions and procedures for using the Lawrence Livermore National Laboratory's two-detector actinide isotope analysis system to measure plutonium samples with other possible actinides (including uranium, americium, and neptunium) by gamma-ray spectrometry. The computer program that controls the system and analyzes the gamma-ray
Koenig, Zachary M. +2 more
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Atomic Size Misfit for Electrocatalytic Small Molecule Activation
Advanced Functional Materials, EarlyView.This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong +3 more
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Oxygen Isotope Variations of Basaltic Lavas and Upper Mantle Rocks [PDF]
, 2001 This chapter summarizes the oxygen isotope geochemistry of terrestrial basalts and their mantle sources, including the conceptual framework for interpreting such data and the phenomenology of known variations.
Eiler, John M.
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Continuous-flow IRMS technique for determining the 17O excess of CO2 using complete oxygen isotope exchange with cerium oxide [PDF]
, 2014 This paper presents an analytical system for analysis of all single substituted isotopologues (12C16O17O, 12C16O18O, 13C16O16O) in nanomolar quantities of CO2 extracted from stratospheric air samples.
Kaiser, J. +5 more
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Advanced Functional Materials, EarlyView.Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida +16 more
wiley +1 more source
Las prácticas funerarias de los inicios de la Edad del Bronce en los páramos del noroeste de Burgos (España): El túmulo posdolménico de Arroyo de las Vegas en Sargentes de la Lora [PDF]
Munibe Antropologia-ArkeologiaSe presentan los resultados de la excavación y estudio de materiales del túmulo de Arroyo de las Vegas. Este es un yacimiento funerario que viene a rellenar el vacío documental referente al monumentalismo funerario de comienzos del II milenio cal a.C. de
Rodrigo Villalobos García +12 more
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How Useful are High-Precision Delta ?17O Data in Defining the Asteroidal Sources of Meteorites?: Evidence from Main-Group Pallasites, Primitive and Differentiated Achondrites [PDF]
, 2008 High-precision oxygen isotope analysis is capable of revealing important information about the relationship between different meteorite groups.
Franchi, I. A. +2 more
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Advanced Functional Materials, EarlyView.By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu +5 more
wiley +1 more source
Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation
Geophysical Research Letters, 2020 The dynamics and paleo‐glaciology of ice sheet interiors during the last deglaciation are poorly constrained, hindering ice sheet model reconstructions.
T. P. Lane +9 more
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