Results 71 to 80 of about 54,813 (368)

Enhanced Strontium Removal through Microbially Induced Carbonate Precipitation by Indigenous Ureolytic Bacteria. [PDF]

open access: hybridACS Earth Space Chem
White-Pettigrew M   +7 more
europepmc   +3 more sources

Discovery of s-process enhanced stars in the LAMOST survey [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, Volume 490, Issue 2, December 2019, Pages 2219-2227, 2019
Here we present the discovery of 895 s-process-rich candidates from 454,180 giant stars observed by the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) using a data-driven approach. This sample constitutes the largest number of s-process enhanced stars ever discovered.
arxiv   +1 more source

Insights into utilization of strontium carbonate for thermochemical energy storage

open access: yesRenewable Energy, 2020
The reversible dissociation/carbonation of metal carbonates, performed in fluidized bed reactors, is one of the most promising technological solution for thermochemical energy storage (TCES) in concentrating solar power plants (CSP). In this framework, the SrCO3/SrO system is receiving increasing interest due to its high energy density (4 GJ/m3) and ...
Ammendola   +9 more
openaire   +2 more sources

Ferromanganese nodules and micro-hardgrounds associated with the Cadiz Contourite Channel (NE Atlantic): Palaeoenvironmental records of fluid venting and bottom currents [PDF]

open access: yes, 2012
Ferromanganese nodule fields and hardgrounds have recently been discovered in the Cadiz Contourite Channel in the Gulf of Cadiz (850–1000 m). This channel is part of a large contourite depositional system generated by the Mediterranean Outflow Water ...
Abouchami   +159 more
core   +2 more sources

Direct Natural and Artificial Aging of Aluminum Alloy AlSi10Mg After Laser Powder‐Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Laser powder‐bed fusion of metals aluminum alloy AlSi10Mg has been directly aged. Artificial aging after natural aging is considered. The hardening potential is high for the top part of the samples as well as after short natural aging. The hardening potential is substantially reduced for the bottom part of the samples, as well as after natural aging of
Rabea Steuer   +6 more
wiley   +1 more source

Strontium Is Released Rapidly From Agricultural Lime–Implications for Provenance and Migration Studies

open access: yesFrontiers in Ecology and Evolution, 2021
The use of strontium isotopes in pre-historic mobility studies requires accurate isoscapes for evaluating whether pre-historic individuals are local to the areas in which they were buried or not.
Rasmus Andreasen, Erik Thomsen
doaj   +1 more source

Industrial Waste as Components of Building Materials [PDF]

open access: yesE3S Web of Conferences, 2020
The possibilities of using large-tonnage waste from the Saratov region in the production of building materials are analysed. Waste was investigated: phosphogypsum - waste from the production of mineral fertilizers; steel-making slag, limestone crushing ...
Fomina Natalya   +2 more
doaj   +1 more source

Abundances of C, N, Sr and Ba on the red giant branch of omega Centauri [PDF]

open access: yes, 2010
Abundances relative to iron for carbon, nitrogen, strontium and barium are presented for 33 stars on the red giant branch of the globular cluster omega Centauri. They are based on intermediate-resolution spectroscopic data covering the blue spectral region analyzed using spectrum synthesis techniques.
arxiv   +1 more source

A normalised seawater strontium isotope curve: possible implications for Neoproterozoic-Cambrian weathering rates and the further oxygenation of the Earth [PDF]

open access: yes, 2007
The strontium isotope composition of seawater is strongly influenced on geological time scales by changes in the rates of continental weathering relative to ocean crust alteration.
Shields, GA
core   +1 more source

Podoplanin immunopositive lymphatic vessels at the implant interface in a rat model of osteoporotic fractures [PDF]

open access: yes, 2013
Insertion of bone substitution materials accelerates healing of osteoporotic fractures. Biodegradable materials are preferred for application in osteoporotic patients to avoid a second surgery for implant replacement. Degraded implant fragments are often
Alt, Volker   +16 more
core   +2 more sources

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