Results 41 to 50 of about 16,003 (268)

Discovery of a rare earth mineral in an archaeological artefact

Доповiдi Нацiональної академiї наук України
The chemical and mineral composition of an archaeological artefact — Bronze Age ceramics from a settlement near the city of Kaniv was studied. It was established that red pottery clay mixed with sand was used for its formation, most likely from the ...
В.М. Бельський, Г.О. Кульчицька, Д.С. Черниш, Л.І. Канунікова   +3 more
doaj   +1 more source

Highly Flexible and Conformable ZnO/FeGa Magnetoelectric Heterostructures for Skin wound Healing

Advanced Science, EarlyView.
The magnetic field‐induced electric field generated by a highly flexile ZnO(piezoelectric)/FeGa(magnetostrictive) magnetoelectric heterostructure embedded in the low Young's modulus elastomer PDMS has been used to stimulate the wound healing processes.
Filippos Perdikos, Laia Bagur, Cristina Vaca, Aritz Lafuente, Joaquin Llacer‐Wintle, Bojan Ambrožič, Christina Stefani, Minsoo Kim, Goran Dražić, Darja Lisjak, Jordi Sort, Xiang‐Zhong Chen, Maria Jose Esplandiu, Salvador Pané, Carme Nogués, Josep Nogués, Andreu Blanquer, Borja Sepúlveda   +17 more
wiley   +1 more source

Microplastics in the geological-ecological subsystem of the coastal part of the geoecosystem of the Georgian Shelf

Мінеральні ресурси України
The results of studies on the distribution of microplastics in the surface layer of seafloor sediments in the water area adjacent to the coast of Georgia, conducted by specialists of the State Scientific Institution “MorGeoEcoCenter of the NAS of Ukraine”
V. O. Iemelianov, Ye. I. Nasiedkin, T. S. Kukovska, N. O. Fedoronchuk, S. M. Dovbysh   +4 more
doaj   +1 more source

Influence of solar activity on water clusters. Annual variations 2015—2019

Доповiдi Нацiональної академiї наук України, 2022
The variations of solar activity and distribution of solar energy due to the rotation of the Earth around its axis and around the Sun exert a strong influence on water clusters, as a result of which their chemical reactivity in hydrolytic processes can ...
I.V. Shevchenko
doaj   +1 more source

Data‐Driven Modeling of Composition–Processing–Microstructure Relations for Recycled Aluminum Cast Alloys

Advanced Science, EarlyView.
Interpretable machine learning reveals how composition and processing govern the formation and microstructural burden of Fe‐rich intermetallic compounds in recycled Al–Si–Fe–Mn alloys. By separating morphology selection from morphology‐conditioned burden partitioning, this framework shows that identical Fe contents can yield different intermetallic ...
Jaemin Wang, Waleed Mohammed, Dierk Raabe   +2 more
wiley   +1 more source

Geochronology by monazite veins of granite of the old Crimea quarry (Azov Region, Ukrainian Shield)

Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
The purpose. The aplitoid biotite granites with traces of rheomorphic transformations lying among gneisses and crystalline schists of the Central-Priazovska series of the Ukrainian shield, as well as the anatomy of accessory crystals of zircon and ...
Leonid Stepanyuk, Vasyl Zagnitko, Hennadiy Pavlov, Tatyana Dovbush   +3 more
doaj   +1 more source

A brief history of the Department of Cosmoecology and Cosmic Mineralogy (to 50-anniversary of M. P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation NAS of Ukraine)

Геофизический журнал, 2019
The history of origin and evolution in Ukraine of mineralogical studies of cosmic samples, mainly meteorites, and the main stages of formation of the Department of Сosmoecology and Cosmic Mineralogy at the M. P.
V. P. Semenenko
doaj   +1 more source

Radiation Resilient Synthetic Antiferromagnets‐Based Neuromorphic Device for Sea Surface Temperature Reconstruction

Advanced Science, EarlyView.
By leveraging strong antiferromagnetic coupling, radiation‐tolerant synthetic antiferromagnetic synaptic devices are developed. Their intrinsic nonlinearity emulates neuronal activation, while linear and symmetric conductance modulation mimics synaptic plasticity.
Mingxu Song, Jiahao Liu, Ruisheng Hu, Teng Xu, Aihua Tang, Zhihong Zhu   +5 more
wiley   +1 more source

Cation Diffusion‐Mediated Displaced Reaction‐Transformation in Green Steelmaking

Advanced Science, EarlyView.
The removal of O lattice atoms by environmental H2 at the surface of Fe3O4 results in Fe enrichment, driving the inward diffusion of Fe cations into the bulk. Through hopping between unoccupied and initially occupied sites, cation diffusion triggers a spatially displaced reaction‐transformation and drives subsequent dynamic phase transformations and ...
Guangyi Guo, Paul Paciok, Baptiste Bienvenu, Longqi Bai, Barak Ratzker, Marc Heggen, Xuyang Zhou, Dierk Raabe   +7 more
wiley   +1 more source

ECOLOGICAL AND GEOCHEMICAL ASSESSMENT OF THE DONBASS FERROUS METALLURGY ENTERPRISES

Геохімія техногенезу
The results of ecologico-geochemical modeling of the Donbas ferrous metallurgy enterprises are presented in the article. One of the oldest metallurgical enterprises of Ukraine – Donetsk Metallurgical Plant and components of the environment in its ...
O.M. Dudik , L.D. Sietaia
doaj   +1 more source