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2621
Synthesis and Characterization of Physically Mixed V2O5.CaO as Bifunctional Catalyst for Methyl Ester Production from Waste Cooking Oil
Published 2023-03-01“…Synthesis of the solid bifunctional vanadium-calcium mixed oxides catalyst was accomplished by application of a simple physical mixing approach. …”
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2622
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2623
ECONOMIC AND ADMINISTRATIVE METHODS OF RESTORATION BY LOCAL GOVERNMENTS OF THE ENVIRONMENT OF UKRAINE DESTROYED AS A RESULT OF MILITARY OPERATIONS
Published 2022-12-01“…The hostilities lead to environmental pollution with heavy metals (titanium, vanadium, strontium) as a result of artillery shelling, poisoning of drinking water and radioactively contaminated waters of the Azov and Black Seas and rivers: Dnipro and Siverskyi Donets as a result of flooding of mines, destruction of vegetation and wildlife. …”
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2624
Investigation into X-point emissivity in metallic materials for temperature measurement
Published 2024-05-01“…The results demonstrate that: (1) the simulation of X-point emissivity is achieved for the first time by the incorporation of the Lorentz-Drude model of electron-phonon scattering. (2) Validation of the model's feasibility is demonstrated by the measurement of the X-point emissivity of tungsten, and the inaugural measurement of vanadium's X-point emissivity. (3) Pioneeringly, X-point emissivity finds application in metal temperature measurement, exhibiting an accuracy 0.3 % superior to that of pyrometers. …”
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2625
Exposure of Reproductive-Aged Women to Multiple Metals and Its Associations with Unexplained Recurrent Miscarriage
Published 2023-09-01“…The levels of calcium (104.37 mg/L vs. 92.65/93.02/92.61/92.47 mg/L) and selenium (131.85 µg/L vs. 117.80/118.04/115.88/124.35 µg/L) were higher in the controls than in the total uRM group and the 2M, 3M and ≥4M subgroups. The level of vanadium was significantly lower in the controls than in the total uRM group (0.15 µg/L vs. 0.23 µg/L), and the level of lead was lower in the controls than that in the total uRM group and the 2M, 3M and ≥4M subgroups (0.01 µg/L vs. 0.28/0.18/0.63/0.34 µg/L). …”
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2626
Investigating the Optimal DOD and Battery Technology for Hybrid Energy Generation Models in Cement Industry Using HOMER Pro
Published 2023-01-01“…The battery technologies evaluated are lead-acid (LA), lithium-ion (Li-ion), vanadium redox (VR), and nickel-iron (Ni-Fe). Five cement plants in Pakistan are considered, including Askari Cement Plant, Wah (ACPW), Bestway Cement Plant, Kalar Kahar (BCPKK), Bestway Cement Plant, Farooqia (BCPF), Bestway Cement Plant, Hattar (BCPH), and DG Cement Plant, Chakwal (DGCPC). …”
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2627
Trace Element Concentrations in Drinking Water and Urine among Saharawi Women and Young Children
Published 2018-07-01“…Among both women and children, urinary concentration of vanadium, arsenic, selenium, lead, iodine, and uranium exceeded reference values, and most of the elements were significantly higher in zone 2 compared to zone 1. …”
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2628
Machinability Features of Ti-6Al-4V Alloy with Ultrafine-Grained Structure
Published 2023-10-01“…The most common and well-known titanium alloy is titanium alloy with aluminum and vanadium (Ti-6Al-4V). This alloy is used, for example, in the manufacture of aircraft engines. …”
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2629
Photocatalytic Properties and Chemical Durability of CaO-B<sub>2</sub>O<sub>3</sub>-V<sub>2</sub>O<sub>5</sub> Borovanadate Glasses
Published 2023-03-01“…The photocatalytic performance was assessed by the degradation of methylene blue (MB) dye under irradiation, and the evolution of dye degradation was analyzed by UV-visible spectrometry. The vanadium content in the glass, the amount of catalyst, and the initial dye concentration showed a variable effect on the degradation of the MB dye. …”
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2630
Assessment of the Concentration of 51 Elements in the Liver and in Various Parts of the Human Brain—Profiling of the Mineral Status
Published 2023-06-01“…The results of this study show that the inhabitants of south-eastern Poland are exposed to a fairly uniform accumulation of aluminum and vanadium in the brain, which have the highest affinity to the thalamus dorsalis. …”
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2631
Characterization and In Vitro Biocompatibility of Two New Bioglasses for Application in Dental Medicine—A Preliminary Study
Published 2022-12-01“…For this study, two new bioglasses—one with boron (BG1) and another with boron and vanadium (BG2)—were synthesized, characterized, and tested on human dysplastic keratinocytes. …”
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2632
Highly Conducting Li(Fe<sub>1−<i>x</i></sub>Mn<sub><i>x</i></sub>)<sub>0.88</sub>V<sub>0.08</sub>PO<sub>4</sub> Cathode Materials Nanocrystallized from the Glassy State (<i>x</i> =...
Published 2021-10-01“…This study showed that thermal nanocrystallization of glassy analogs of LiFe<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub></semantics></math></inline-formula>Mn<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mi>x</mi></msub></semantics></math></inline-formula>PO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>4</mn></msub></semantics></math></inline-formula> (with the addition of vanadium for improvement of glass forming properties) resulted in highly conducting materials that may be used as cathodes for Li-ion batteries. …”
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2633
Development of Ni-Sr(V,Ti)O<sub>3-δ</sub> Fuel Electrodes for Solid Oxide Fuel Cells
Published 2021-12-01“…Ceramic samples sintered at 1500 °C exhibited temperature-activated electrical conductivity that showed a weak p(O<sub>2</sub>) dependence and increased with vanadium content, reaching a maximum of ~17 S/cm at 1000 °C. …”
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2634
Spin transport properties of T-phase VSe2 2D materials based on eight-atom-ring line defects
Published 2023-06-01“…Furthermore, our analysis of the partial charge density distribution shows that a closer inter-defect distance between the d-states of vanadium atoms and p-states of selenium atoms increases the penalty of electrons occupying the spin-minority states. …”
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2635
Oxidation of Organic Compounds with Peroxides Catalyzed by Polynuclear Metal Compounds
Published 2021-01-01“…These catalysts are polynuclear complexes of iron, copper, osmium, nickel, manganese, cobalt, vanadium. Such complexes for example are: [Fe<sub>2</sub>(HPTB)(m-OH)(NO<sub>3</sub>)<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub>·CH<sub>3</sub>OH·2H<sub>2</sub>O, where HPTB-¼N,N,N0,N0-tetrakis(2-benzimidazolylmethyl)-2-hydroxo-1,3-diaminopropane; complex [(PhSiO<sub>1,5</sub>)<sub>6</sub>]<sub>2</sub>[CuO]<sub>4</sub>[NaO<sub>0.5</sub>]<sub>4</sub>[dppmO<sub>2</sub>]<sub>2</sub>, where dppm-1,1-bis(diphenylphosphino)methane; (2,3-η-1,4-diphenylbut-2-en-1,4-dione)undecacarbonyl triangulotriosmium; phenylsilsesquioxane [(PhSiO<sub>1.5</sub>)<sub>10</sub>(CoO)<sub>5</sub>(NaOH)]; bi- and tri-nuclear oxidovanadium(V) complexes [{VO(OEt)(EtOH)}<sub>2</sub>(L<sup>2</sup>)] and [{VO(OMe)(H<sub>2</sub>O)}<sub>3</sub>(L<sup>3</sup>)]·2H<sub>2</sub>O (L<sup>2</sup> = bis(2-hydroxybenzylidene)terephthalohydrazide and L<sup>3</sup> = tris(2-hydroxybenzylidene)benzene-1,3,5-tricarbohydrazide); [Mn<sub>2</sub>L2O3][PF6]2 (L = 1,4,7-trimethyl-1,4,7-triazacyclononane). …”
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2636
Perspectives of osteoarthritis prevention and therapy personification based on the analysis of comorbid background, genetic polymorphisms and microelement status
Published 2021-04-01“…Analysis of the 62 elements profile of the Element Periodic Table content in hair showed that reduced levels of silicon, molybdenum, vanadium and calcium are significantly associated with OA. …”
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2637
Solid Particles in Natural Gas from a Transportation Network: A Chemical Composition Study
Published 2019-10-01“…The observed particles are composed of numerous elements, such as aluminum (Al), silica (Si), sulphur (S), chloride (Cl), chromium (Cr), zinc (Zn), sodium (Na), manganese (Mg), calcium (Ca), iron (Fe), titanium (Ti), nickel (Ni), vanadium (V), potassium (K), copper (Cu), manganese (Mn), silver (Ag), cobalt (Co), iodine (I), and barium (Ba), with relative occurrences ranging from 1 to 85%. …”
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2638
Harmonic Principles of Elemental Crystals—From Atomic Interaction to Fundamental Symmetry
Published 2018-06-01“…This lattice symmetry, which is evident for alkali metals as well as transition metals of the vanadium and chromium group, cannot be obtained from classical Morse or Lennard-Jones type potentials, but needs the range flexibility within the pair potential.…”
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2639
Genome-Resolved Metagenomics Informs the Functional Ecology of Uncultured Acidobacteria in Redox Oscillated Sphagnum Peat
Published 2022-10-01“…In addition to canonical molybdenum-based diazotrophy, the Acidobacteria genomes harbor vanadium and iron-only alternative nitrogenases. Together, the results better inform the different functional roles of Acidobacteria in peat biogeochemistry under global change. …”
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2640
Microstructural Modification of TiAl6V4 Alloy to Avoid Detrimental Effects Due to Selective In Vivo Crevice Corrosion
Published 2022-08-01“…Furthermore, a microstructural effect on cell attachment was determined and is correlated to the size of the vanadium-rich β phase. These key findings highlight the relevance of an adapted processing of TiAl6V4 alloy to increase the longevity of implants.…”
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