Results 71 to 80 of about 31,311 (333)
Journal of Groundwater Science and EngineeringUnderstanding the hydrochemical characteristics and genesis mechanisms of strontium-rich groundwater is pivotal for supporting the exploitation and utilization of natural strontium-rich groundwater. In this research, 27 groundwater samples were collected.
Mi Tang +5 more
doaj +1 more source
Science and Technology of Archaeological Research, 2017 Transhumance and palaeodiet are two central themes in archaeology and using chemical analysis of bones and teeth to reconstruct trends and patterns in diet and mobility has become a cornerstone of bioarchaeology.
J. Lewis +3 more
doaj +1 more source
The Space Optical Clocks Project: Development of high-performance transportable and breadboard optical clocks and advanced subsystems [PDF]
, 2012 The use of ultra-precise optical clocks in space ("master clocks") will allow for a range of new applications in the fields of fundamental physics (tests of Einstein's theory of General Relativity, time and frequency metrology by means of the comparison ...
Abou-Jaoudeh, C. +30 more
core +4 more sources
Topology‐Aware Machine Learning for High‐Throughput Screening of MOFs in C8 Aromatic Separation
Advanced Intelligent Discovery, EarlyView.We screened 15,335 Computation‐Ready, Experimental Metal–Organic Frameworks (CoRE‐MOFs) using a topology‐aware machine learning (ML) model that integrates structural, chemical, pore‐size, and topological descriptors. Top‐performing MOFs exhibit aromatic‐enriched cavities and open metal sites that enable π–π and C–H···π interactions, serving as ...
Yu Li, Honglin Li, Jialu Li, Wan‐Lu Li
wiley +1 more source
Exploring the potential of the strontium isotope tracing system in Denmark
Danish Journal of Archaeology, 2012 Migration and trade are issues important to the understanding of ancient cultures. There are many ways in which these topics can be investigated. This article provides an overview of a method based on an archaeological scientific methodology developed ...
Karin Margarita Frei
doaj +1 more source
Angewandte Chemie International Edition, EarlyView.Side‐on coordinated alkaline earth metal hypofluorites F′M(η2‐OF) (M = Mg, Ca, Sr, and Ba) were prepared through the reactions of laser‐ablated metal atoms with OF2 in argon matrices. The species feature a fluorido F′− and a side‐on coordinated η2‐OF− ligand with the M─F─O─F′ dihedral angle increasing from calcium to barium, which parallel the non ...
Xiya Xia, Robert Medel, Sebastian Riedel
wiley +1 more source
STRONTIUM ISOTOPE SYSTEMATICS AND GEOCHEMISTRY OF COAL UTILIZATION BY-PRODUCTS [PDF]
, 2007 Coal combustion for energy generation creates large quantities of solid coal utilization by-products (CUB), including fly ash, bottom ash, and flue gas desulfurization products. These materials are either used in environmental and industrial applications
Spivak-Birndorf, Lev
core +1 more source
The Anatomical Record, EarlyView.Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
wiley +1 more source
Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain. [PDF]
PLoS ONE, 2012 Large quantities of radionuclides have leaked from the Fukushima Daiichi Nuclear Power Plant into the surrounding environment. Effective prevention of health hazards resulting from radiation exposure will require the development of efficient and ...
Hiroki Shimura +10 more
doaj +1 more source
Box Models of Volatile Cycles over the Entire Phanerozoic [PDF]
, 2006 Three stand-alone geochemical box models have been developed to simulate globally coupled biogeochemical cycles. These models reflect the evolution of the participating biotic and abiotic constituents in marine and terrestrial environments, including the
Bartdorff, Oliver
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