Results 91 to 100 of about 51,712 (271)
New age data on the geological evolution of Southern India [PDF]
The Peninsular Gneisses of Southern India developed over a period of several hundred Ma in the middle-to-late Archaean. Gneisses in the Gorur-Hassan area of southern Karnataka are the oldest recognized constituents: Beckinsale et al.
Chadwick, B. +5 more
core +1 more source
Rare Metals, EarlyView.ABSTRACT The similar physicochemical properties of alkali metal elements make the co‐enrichment and precise separation of Cs+ and Rb+ in complex brine systems highly challenging. Here, an all‐inorganic strategy is proposed, which achieves efficient enrichment and precise separation of Cs+ and Rb+ in high‐salt systems by constructing Sr2+/Ba2+‐based ...
Kang Li, Ruixin Ma, Shina Li
wiley +1 more source
О возрасте щелочных гранитоидов магнитогорской габбро-гранитной серии
Литосфера, 2019 В статье приведены материалы изотопного датирования дайки риолит-порфиров, рассекающей щелочной гранитный массив горы Чека. Полученные данные по дайке риолит-порфиров 315 ± 5 млн. лет и 318 ± 5 млн. лет U-Pb методом по цирконам и 305 ± 7.4 млн.
doaj
K-Ca Dating of Alkali-Rich Fragments in the Y-74442 and Bhola LL-Chondritic Breccias [PDF]
, 2013 Alkali-rich igneous fragments in the brecciated LL-chondrites, Krahenberg (LL5) [1], Bhola (LL3-6) [2], Siena (LL5) [3] and Yamato (Y)-74442 (LL4) [4-6], show characteristic fractionation patterns of alkali and alkaline elements [7].
Misawa, K. +7 more
core +1 more source
New Advances of Degradable Magnesium‐Based Metal Biomaterials in the Field of Orthopedics
Rare Metals, EarlyView.ABSTRACT Based on their outstanding biomechanical properties and superior osteogenic activity, magnesium (Mg) and its alloys have been extensively investigated for their biocompatibility and therapeutic efficacy in treating fractures and bone defects.
Jia‐Nan Yu +8 more
wiley +1 more source
Rb-Sr features of the impact-melted LL-chondrites from Antarctica:Yamato-790723 and Yamato-790528 [PDF]
, 1992 Rubidium and strontium abundances as well as Sr isotopic compositions were analyzed for the impact-melted meteorites (LL-chondrite : Yamato-790723 and -790528) from Antarctica to clarify their Rb-Sr features and to date the impact events.
Hirokazu Fujimaki +2 more
core +1 more source
Sustainable Development, EarlyView.ABSTRACT Amid the quest for sustainable agriculture, this study explores key ecological and technological factors influencing crop production under climate change. We conduct a comprehensive assessment of temperature, biomass, farmer education, renewable energy devices, greenhouse gas emissions and their effects on rice yields in Granma, Cuba, from ...
Afzal Ahmed Dar +6 more
wiley +1 more source
An isotopic study of glauconite from lower Ordovician Limestone, Stenbröttet, Sweden [PDF]
, 1979 Glauconites separated from Lower Ordovician limestones collected near Stenbrottet, southern Sweden, were dated by the Rb-Sr method. Strontium and rubidium concentrations in the samples were determined by X-ray fluorescence analysis.
Eggert, Tom
core
System Design Considerations for Magneto‐Electrocatalysis of the Oxygen Evolution Reaction
Small, EarlyView.Electrocatalytic water‐splitting can be controlled using a magnetic field. The commercial prospects are exciting, but the progress is stuck in the fundamental stage of research. Progress is stagnated by publications with conflicting results, incomplete analysis, and inconsistent experimental setups.
Dorottya Szalay +3 more
wiley +1 more source
Solvent‐Mediated Dewetting Principles for Cell‐Sized Liposome Formation
Small, EarlyView.Dynamics of solvent‐mediated dewetting for giant unilamellar liposome formation. Solvent removal, through changing lipid packing and membrane tension, is shown to induce partial dewetting into equilibrium low and high budding angle morphologies. Complete dewetting requires mechanical force, quantified using optical tweezers.
Mostafa Bakouei +6 more
wiley +1 more source