Results 41 to 50 of about 11,258 (258)

ISOTOPIC-RADIOGEOCHEMICAL ANALYSIS OF GROUNDWATER AT THE KALUSH-GOLINSKY POTASSIUM SALT DEPOSIT

Геохімія техногенезу, 2022
The main potential sources of groundwater salinity of the gravel-pebble aquifer of the Kalush-Golinsky potassium salt deposit were analyzed. The distribution of tritium (3H) in groundwater and surface water of the territory adjacent to the Dombrovsky ...
Yа. Malkova, I. Kovalenko, Dolin V., Panasyuk M., Demikhov Yu., Sosonna N., Bagriy S., Kuzmenko E.   +7 more
doaj   +1 more source

Graphene Quantum Dot‐Induced Microstrain for Framework Stabilization of High‐Entropy Prussian Blue Analog in High‐Current Alkaline Hydrogen Evolution Reaction

Advanced Functional Materials, EarlyView.
The intrinsic distortion‐rich lattice of HEPBA with GQD‐enabled microstrain engineering establishes a mechanistic route toward high‐performance alkaline hydrogen evolution reaction. HEPBA inherently feature heterogeneous local coordination environments arising from multimetal incorporation, while properly introducing GQD during coprecipitation ...
Mia Rinawati, Yu‐Ru Liu, Wei‐Hsiang Huang, Kuan‐Yu Lin, Ching‐Ju Ho, Ling‐Yu Chang, Karel Roubik, Ni Luh Wulan Septiani, Ahmad Nuruddin, Wei‐Nien Su, Min‐Hsin Yeh   +10 more
wiley   +1 more source

Shape Coexistence in Odd-Z Isotopes from Fluorine to Potassium

Particles
The shape of a nucleus is one of its fundamental properties. We conduct a systematic investigation of shape coexistence in odd-Z nuclei from fluorine to potassium using the deformed relativistic Hartree–Bogoliubov theory in continuum. First, we present a
Myeong-Hwan Mun, Panagiota Papakonstantinou, Youngman Kim   +2 more
doaj   +1 more source

Radiological assessment of radionuclide contents in soils in Lower Silesian Voivodeship in the years 1988-2014

E3S Web of Conferences, 2018
. In 1986, the Chernobyl disaster provoked the uncontrolled release of significant amounts of radioactive substances, which caused surface contamination in Poland through radioactive isotopes.
Łukaszek-Chmielewska Aneta, Stawarz Olga, Isajenko Krzysztof, Piotrowska Barbara, Girard Martin   +4 more
doaj   +1 more source

Concentrations and Radiation Hazard Indices of Naturally Radioactive Materials for Flour Samples in Baghdad Markets

مجلة بغداد للعلوم, 2021
In the present work, Uranium (238U), Thorium (232Th) and Potassium (40K) specific activity concentration in (Bq/kg) was measured in five different types for wheat flours that are available in the Iraqi markets.
Farah Faris kaddoori, Ban Sabah Hameed , Wijdan Thamer Fzaa   +2 more
doaj   +1 more source

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

Advanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy, Gyeongsoo Kim, Sooyoung Lee, Mohamed R. Elmasry, Youn‐Chul Kim, Changsik Song   +5 more
wiley   +1 more source

Fluid-driven element mobility resets plagioclase rubidium strontium and barium clocks while potassium feldspar resists

Communications Earth & Environment
Rubidium, cesium, strontium, barium and their isotopes are employed as tracers of magmatic differentiation and fluid-mediated metasomatism, but their mobility during mineral-scale alteration remains uncertain.
Hao-Xiang Zhang, Shao-Yong Jiang, Si-Qi Liu, Hui-Min Su, Wen-Tian Li   +4 more
doaj   +1 more source

Fractionation of the Cardiac Output of Rats with Isotopic Potassium [PDF]

Circulation Research, 1956
A single injection of K 42 given intravenously is initially distributed among the organs in proportion to the blood flow through them. By determining the organ content of K 42 after such an injection the cardiac output may be fractionated.
openaire   +2 more sources

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

Advanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro, Hugo Aramberri, Víctor Rouco, Gabriel Sánchez‐Santolino, Mariona Cabero, Fernando Gallego, David Sánchez‐Manzano, José M. González‐Calbet, Federico Mompeán, Mar García‐Hernández, Alberto Rivera‐Calzada, Jorge Íñiguez‐González, Carlos León, Jacobo Santamaría   +13 more
wiley   +1 more source

Synergy of Pd Clusters and TiO2 {101} for Photocatalytic Nonoxidative Coupling of Methane

Advanced Science, EarlyView.
This study presents photocatalytic nonoxidative coupling of methane over cal‐Pd0.05/TiO2{101}, achieving near 100% selectivity and long‐term stability under mild flow conditions through synergistic single atoms and clusters catalysis. ABSTRACT Photocatalytic nonoxidative coupling of methane (NOCM) offers a sustainable route to valorize CH4 into C2 ...
Jianlong Yang, Annika S. Tang, Junwang Tang   +2 more
wiley   +1 more source