The distribution of alloying elements in secondary carbides of heat-resistant nickel alloys by O. A. Glotka, S.V. Gayduk, V.Yu. Olshanetskiy

“…As well as a practical study of the structure and distribution of chemical elements in carbides, depending on the alloying of the alloy using a scanning electron microscope REM-106I. …”
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The Shapes of Stellar Spectra by Carlos Allende Prieto

“…To that end, I employ simple, state-of-the-art plane-parallel model atmospheres and a spectral synthesis code, dissecting the effects of photoionization from different chemical elements and species, for stars of different masses in the range of 0.3 to 2 M<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mo>⊙</mo></msub></semantics></math></inline-formula>. …”
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A Cluster Analysis Methodology for the Categorization of Soil Samples for Forensic Sciences Based on Elemental Fingerprint by Camila Maione, Nattane Luíza da Costa, Fernando Barbosa, Rommel Melgaço Barbosa

“…In order to investigate the most significant chemical elements that distinguish the clusters, we employed the Correlation-Based Feature Selection (CFS) algorithm. …”
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Improving the soil fertility of agricultural lands in the Non-Black Earth Zone of the Russian Federation by N. N. Dubenok, E. V. Klimakhina, E. V. Matsyganova

“…With anti-erosion methods of tillage on a slope with a steepness of 7%, the migration of chemical elements was 2.2 times less compared to similar options on the slope with a steepness of 14%. …”
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The Uptake of Rare Trace Elements by Perennial Ryegrass (<i>Lolium perenne</i> L.) by Hayley Jensen, Niklas Lehto, Peter Almond, Sally Gaw, Brett Robinson

“…Technological development has increased the use of chemical elements that have hitherto received scant scientific attention as environmental contaminants. …”
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STRUCTURAL, GEOPHYSICAL AND GEOCHEMICAL CRITERIA FOR EPITHERMAL HIGH-SULFIDATION GOLD MINERALIZATION ON THE EXAMPLE OF SVETLOE ORE FIELD (KHABAROVSKIY KRAY) by Dmitry V. Lesnyak, Yury S. Ananyev, Roman Yu. Gavrilov

“…Furthermore, the distribution of chemical elements in the secondary stray field makes it possible to establish a concentric zonal structure characteristic of hydrothermal gold deposits, with a spatiotemporal change in geochemical associations from the central zone of ore formation to the periphery at the local level of generalization: Au, Mo→Au, Ag, Pb→K, Na, Al→V, Zn, (Co, Ni, Cr, Mn, P). …”
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Natural Categories and Human Kinds: Classification in the Natural and Social Sciences by Muhammad Ali Khalidi by Stephen Braude

“…Khalidi aims for an epistemic, naturalistic, non-essentialist, account of natural kinds, one which comfortably embraces not only the usual candidates favored by essentialists (e.g., elementary particles, chemical elements, biological species), but also categories in the social and behavioral sciences. …”
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Modeling of two-dimensional MoxW_1−xS_2ySe_2(1−y) alloy band structure by N. Yu. Pimenov, S. D. Lavrov, A. V. Kudryavtsev, A. Yu. Avdizhiyan

“…The most effective way to solve this problem is to use two-dimensional TMD films based on multicomponent alloys, including three or more different chemical elements (while TMDs consist of two). By varying their morphological composition, one can control the value of the band gap and thus their optical absorption spectrum. …”
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Sediment bacterial communities reflect the history of a sea basin. by Christina Lyra, Hanna Sinkko, Matias Rantanen, Lars Paulin, Aarno Kotilainen

“…We investigated the bacterial communities, chemical elements (e.g. Cr, Pb Na, P, Sr and U) and sediment composition in a stratified sediment core dated by radiocarbon and spanning 8000 years of Baltic Sea history, using up-to-date multivariate statistics. …”
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Discovery of Super-enriched Gas ∼1 Gyr after the Big Bang by Jianghao Huyan, Varsha P. Kulkarni, Suraj Poudel, Nicolas Tejos, Celine Péroux, Sebastian Lopez

“…Abundances of chemical elements in the interstellar and circumgalactic media of high-redshift galaxies offer important constraints on the nucleosynthesis by early generations of stars. …”
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HYDROGEOLOGICAL CONDITIONS OF DEVELOPMENT AND HYDROGEOCHEMISTRY OF DRAINAGE WATER OF THE BOROK GRANITE QUARRY by Anna F. Sukhorukova

“…The hydrogeochemical features of the quarry drainage waters were revealed, including the distribution of a wide range of chemical elements (from Li to U). Waters are characterized by Cl-SO4-HCO3 Na-Mg-Ca and SO4-HCO3 Na-Mg-Ca composition with TDS from 572 to 697 mg/dm3 and the content of silicon from 0,89 to 10,53 mg/dm3. …”
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Soil aggregate structure, stability, and stoichiometric characteristics in a smelter-impacted soil under phytoremediation by Lei Xu, Lei Xu, Xiangyu Xing, Jingfeng Bai, Ding Li

“…After 3 years, the soil aggregate structure, stability, and stoichiometric of chemical elements were analyzed. The results showed that the three phytoremediation treatments increased the content of &gt;0.25 mm mechanically-stable (DR0.25) and water-stable (WR0.25) aggregates by 6.6%–10.4% and 13.3%–17.5%, respectively. …”
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Technogenic and Geochemical Diagnostics of Soils Distributed on the Territory of the "Kremikovtsi" Metallurgical Plant by Mariela Stoykova

“…Metal content was determined by the LA-ICP-MS method, with data obtained simultaneously with data for over 50 chemical elements. According to the results obtained, the average content of Rb is (in μg/g) 206.10, of Sr - 156.05, of Cs - 12.97 and of Ba - 1876.80, with the values for Barium, Rubidium and Cesium exceeding the average world reference values by 4, 3 and 2.5 times respectively and those of Strontium are slightly below them. …”
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Part–Whole Relations: New Insights about the Dynamics of Complex Geochemical Riverine Systems by Caterina Gozzi, Roberta Sauro Graziano, Antonella Buccianti

“…The results indicate that HCO₃⁻, Ca²⁺, Mg²⁺ and Sr²⁺ are more resilient, thus contributing to compositional changes for all the values of ln(Ca²⁺/HCO₃⁻) to a lesser degree with respect to the other chemical elements/components. Moreover, the complementary cumulative distribution function of all the sequences tracing the compositional change and the nonlinear relationship between the Q-th moment versus the scaling exponents for each of them indicate the presence of multifractal variability, thus revealing scaling properties of the fluctuations.…”
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Ecological and geochemical characteristics of the snow cover in the Yakutsk city (Central Siberia) by V. N. Makarov, N. V. Torgovkin

“…To study the chemical composition of the snow cover and estimate the ecological state of the city in March 2020, 80 snow samples were collected on its territory and analyzed for a wide range of chemical elements. It was found that the background chemical composition of the soluble phase of the snow cover in the Yakutsk region is typical for the middle taiga landscapes of Yakutia: chloride-hydrocarbonate, predominantly calcium, with an acidic reaction and very low mineralization. …”
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Miniature self heating device for bioassay by Achmad Johari Mohammad Rashid

“…The chemical experiments were carried out by varying the weight of the chemical elements used for the exothermic reactions, namely dissolution of Calcium Chloride in excess of water and oxidation of pure Iron powder in excess of oxygen with activated carbon as well as saline water as a catalyst. …”
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The Gaia -ESO Survey: Hydrogen lines in red giants directly trace stellar mass by Bergemann, M, Serenelli, A, Schönrich, R, Ruchti, G, Korn, A, Hekker, S, Kovalev, M, Mashonkina, L, Gilmore, G, Randich, S, Asplund, M, Rix, H, Casey, A, Jofre, P, Pancino, E, Recio-Blanco, A, de Laverny, P, Smiljanic, R, Tautvaisiene, G, Bayo, A, Lewis, J, Koposov, S, Hourihane, A, Worley, C, Morbidelli, L, Franciosini, E, Sacco, G, Magrini, L, Damiani, F, Bestenlehner, J

“…Red giant stars are perhaps the most important type of stars for Galactic and extra-galactic archaeology: they are luminous, occur in all stellar populations, and their surface temperatures allow precise abundance determinations for many different chemical elements. Yet, the full star formation and enrichment history of a galaxy can be traced directly only if two key observables can be determined for large stellar samples: age and chemical composition. …”

Impacts of alcohol type, ratio and stirring time on the biodiesel production from waste canola oil by Hossain, A.B.M.S., Boyce, A.N., Salleh, A., Chandran, S.

“…There was little difference in viscosity, acid value and chemical elements (Fe, Mg, Ca, Na, P etc.) at different parameters. …”
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Indication by environmental components the pollutant transboundary transfer to Gorny Altai by Yuriy Vladimirovich Robertus, Valeriy Nikolaevich Udachin, Leonid Petrovich Rikhvanov, Dmitry Valerievich Yusupov, Anna Vasilievna Kivatskaya, Roman Vladimirovich Lyubimov

“…Filtrate, solid residue of snow and ash of poplar leaves (Populus nigra L.) were studied by ICP-MS at the Institute of Mineralogy, Ural Branch, Russian Academy of Sciences (Miass) on content of 50 chemical elements. Results. The mapped data on chemical composition of filtrate, solid residue of snow and ash of leaves of black poplar found out on the territory of Gorny Altai a large halo of spatially conjugate low pH and elevated concentrations of sulfates, compounds of mineral nitrogen and geochemically different associations of rock-forming elements and elements of polymetallic ores, processed at the enterprises of the plant «Kaztsinc» (Ust-Kamenogorsk, Ridder). …”
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Analysis of the main physical and chemical characteristics of the vine shoots of three vine varieties from Veneto (Italy) by Alessio Mencarelli, Raffaele Cavalli, Rosa Greco

“…Analysis of the chemical elements showed a high content of Cu and Zn in the wood components, node and internode, causing the high ash content found. …”
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