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Relevant bibliographies by topics / Manganese ions (+2)

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Academic literature on the topic 'Manganese ions (+2)'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Manganese ions (+2)"

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Yang, Wen Qiang, Juan An, Jian Guo Yin, Xiao Li Yuan, and Wen Tang Xia. "Removal of Manganese(II) Ions from Wastewater by H₂O₂as Oxidant." Advanced Materials Research 884-885 (January 2014): 125–28. http://dx.doi.org/10.4028/www.scientific.net/amr.884-885.125.

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Removal of manganese (II) ions from wastewater by H2O2as oxidant was studied. Effects of reaction temperature, hydrogen peroxide concentration, reaction time and calcium oxide concen-tration on the manganese removal were investigated. The results indicated that the removal rate of manganese exceeded 99.9% and the Mn (II) ions concentration of treated wastewater was lower than 0.1 mg·L-1under the conditions of reaction temperature 55 °C, concentration of H2O20.1 mL·L-1, reaction time 70 min, concentration of CaO 0.25 g·L-1.

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Ni, C. H., J. N. Chen, and P. Y. Yang. "Catalytic ozonation of 2-dichlorophenol by metallic ions." Water Science and Technology 47, no. 1 (2003): 77–82. http://dx.doi.org/10.2166/wst.2003.0020.

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This research is mainly to explore functional improvement by adding various kinds of metallic ions in the ozonation of 2-chlorophenol solution. During the experiment, various kinds of metallic ions (Pb+, Cu2+, Zn2+, Fe2+, Ti2+, and Mn2+) were added; it was found that the reaction rate increased in all cases. The best result was obtained by using manganese ions, followed by iron and titanium ions. At pH = 3 and 1 ppm Mn2+ concentration, the reaction rate was increased by three times. TOC removal rate was also increased from 12.6% to 38% at 60 min reaction time. Ozone self-decomposition with var

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An, Qi, Mei-Ling Han, Lu-Sen Bian, et al. "Enhanced laccase activity of white rot fungi induced by different metal ions under submerged fermentation." BioResources 15, no. 4 (2020): 8369–83. http://dx.doi.org/10.15376/biores.15.4.8369-8383.

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Submerged fermentation with single or mixed metal ions as inducers was used for laccase production from white rot fungi. Mixed metal ions were used for the first time as inducers for Pleurotus ostreatus and Flammulina velutipes to enhance laccase activity. The maximum laccase activity from P. ostreatus in basal media, metal ion media 1 containing copper ion, metal ion media 2 containing manganese ion, metal ion media 3 containing manganese and copper ions, metal ion media 4 containing ferrous ion, metal ion media 5 containing manganese and ferrous ions, metal ion media 6 containing ferrous and

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RANA, MAZHAR UDDIN. "MAGNETIC INTERACTION IN ALUMINOSILICATE GLASSES CONTAINING MANGANESE IONS." Modern Physics Letters B 07, no. 23 (1993): 1511–16. http://dx.doi.org/10.1142/s0217984993001533.

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By measuring the magnetic susceptibilities, the magnetic interaction between manganese ions has been investigated in manganese aluminosilicate glasses over a temperature range of 1.5–150 K of composition (MnO) x( Al 2 O 3 SiO 2)1−x with 0<x<0.51. A simple structure model is used to explain the interaction between the manganese ions. The effective magnetic moment per magnetic ion was calculated to lie between 5.64 and 6.03 µ B .

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Shapovalov, V. V., В. А. Шаповалов, В. Г. Шавров, В. В. Коледов, В. И. Вальков та А. П. Каманцев. "Распределение ионов марганца Mn-=SUP=-2+-=/SUP=- в монокристалле литий-галлиевой шпинели Li-=SUB=-0.5-=/SUB=-Ga-=SUB=-2.5-=/SUB=-O-=SUB=-4-=/SUB=-". Физика твердого тела 63, № 4 (2021): 499. http://dx.doi.org/10.21883/ftt.2021.04.50714.242.

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Self-organization of eight structurally and magnetically non-equivalent positions of manganese ions Mn2+ in a unit cell of single-crystal lithium-gallium spinel Li0,5Ga2,5O4 is demonstrated. The ions are self-distributed over these positions and the minima of the crystal field potential. Self-distribution of manganese ions becomes apparent in the spectra of Electron Paramagnetic Resonance (EPR).

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Shapovalov, V. V., В. А. Шаповалов, В. Г. Шавров, В. В. Коледов, В. И. Вальков та А. П. Каманцев. "Распределение ионов марганца Mn-=SUP=-2+-=/SUP=- в монокристалле литий-галлиевой шпинели Li-=SUB=-0.5-=/SUB=-Ga-=SUB=-2.5-=/SUB=-O-=SUB=-4-=/SUB=-". Физика твердого тела 63, № 4 (2021): 499. http://dx.doi.org/10.21883/ftt.2021.04.50714.242.

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Self-organization of eight structurally and magnetically non-equivalent positions of manganese ions Mn2+ in a unit cell of single-crystal lithium-gallium spinel Li0,5Ga2,5O4 is demonstrated. The ions are self-distributed over these positions and the minima of the crystal field potential. Self-distribution of manganese ions becomes apparent in the spectra of Electron Paramagnetic Resonance (EPR).

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Zou, Xing, Xiang Quan Chen, Hai Chao Xie, and Xiao Dan Qiu. "Separation of Heavy Metal Ions from the Solution Obtained by Leaching Low-Grade Pyrolusite with Pyrite and H₂SO₄." Advanced Materials Research 773 (September 2013): 283–88. http://dx.doi.org/10.4028/www.scientific.net/amr.773.283.

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The manganese sulfate solution leached from low-grade pyrolusite with pyrite and H2SO4 contains heavy metal ions of high concentration, influencing the quality of the final products of manganese compounds and causing manganese ions not to be electrolyzed. The present study was focused on the separation of Co, Ni and Zn ions from the leached solution with BaS. By controlling the pH value at 5.0-6.5, temperature at 50-60°C, reaction time at 15 min and mixing velocity at 78 rpm, the heavy metal ions could be separated effectively. Under the above optimized conditions, the ion concentration of Co,

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Feltham, Humphrey L. C., Rodolphe Clérac, and Sally Brooker. "A Tetranuclear Mixed-Valence Manganese Complex of a Diimine Ligand Derived from 1,4-Diformyl-2,3-dihydroxybenzene: Synthesis, Structure, and Magnetic Properties." Australian Journal of Chemistry 62, no. 9 (2009): 1119. http://dx.doi.org/10.1071/ch09254.

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An acyclic hexadentate diimine ligand, H4L1, was prepared in situ in methanol by the condensation of 1,4-diformyl-2,3-dihydroxybenzene (1) with 2-aminoethanol, and complexed directly with two equivalents of MnII(OAc)2·4H2O or MnIII(OAc)3·2H2O, or with one equivalent of each. All three of these one-pot reactions gave the mixed-valent tetrametallic complex [MnII2MnIII2(L1)2(OAc)2(solvents)4], [2(solvents)4]. An X-ray crystal structure determination on [2(MeOH)4]·2MeOH revealed a centre of inversion in the middle of the complex. The four metal ions are in an almost planar array, sandwiched by two

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Важенин, В. А., А. П. Потапов, М. Ю. Артёмов та А. В. Фокин. "Парамагнитные центры Mn-=SUP=-2+-=/SUP=-, Gd-=SUP=-3+-=/SUP=- и Cu-=SUP=-2+-=/SUP=- в легированном хромом монокристалле Li-=SUB=-2-=/SUB=-CaSiO-=SUB=-4-=/SUB=-". Физика твердого тела 63, № 5 (2021): 656. http://dx.doi.org/10.21883/ftt.2021.05.50816.267.

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In the Li2CaSiO4 crystal, in addition to intense axial centers of Cr4+, the EPR spectra of impurity ions Mn2+ (S = 5/2), Gd3+ (S = 7/2), and Cu2+ (S = 1/2) have been discovered and studied. Manganese and gadolinium ions exhibit spectra of tetragonal symmetry, copper ions are represented by spectra of both axial and triclinic symmetry. The parameters of the spin Hamiltonians of tetragonal centers are determined. It was shown that Mn2+ and Gd3+ ions substitute for calcium ions with an eightfold oxygen environment, copper ions are localized in lithium positions with a tetrahedral environment. The

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Wang, Mei-Ling, Guo-Qing Zhong, and Ling Chen. "Synthesis, Optical Characterization, and Thermal Decomposition of Complexes Based on Biuret Ligand." International Journal of Optics 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/5471818.

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Four complexes were synthesized in methanol solution using nickel acetate or nickel chloride, manganese acetate, manganese chloride, and biuret as raw materials. The complexes were characterized by elemental analyses, UV, FTIR, Raman spectra, X-ray powder diffraction, and thermogravimetric analysis. The compositions of the complexes were [Ni(bi)2(H2O)2](Ac)2·H2O (1), [Ni(bi)2Cl2] (2), [Mn(bi)2(Ac)2]·1.5H2O (3), and [Mn(bi)2Cl2] (4) (bi = NH2CONHCONH2), respectively. In the complexes, every metal ion was coordinated by oxygen atoms or chlorine ions and even both. The nickel and manganese ions w

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Dissertations / Theses on the topic "Manganese ions (+2)"

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Barnese, Kevin. "An investigation into the properties of manganese ions to determine how they combat superoxide stress." Diss., Restricted to subscribing institutions, 2009. http://proquest.umi.com/pqdweb?did=1722403331&sid=18&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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Laus, Rogério. "Extração líquido-líquido dos íons cádmio(II), cobre(II), manganês(II), níquel(II) e zinco(II) com o ligante N, N',N,N' -BIS[(2-hidroxi-3,5-DI-terc-butilbenzil)(2-piridilmetil)]-etilenodiamina." Florianópolis, SC, 2007. http://repositorio.ufsc.br/xmlui/handle/123456789/89842.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química<br>Made available in DSpace on 2012-10-23T03:18:02Z (GMT). No. of bitstreams: 1 241207.pdf: 653236 bytes, checksum: a3d124330f2aa56901819c8e223ef38f (MD5)<br>O presente trabalho propôs avaliar o potencial do ligante N,N',N,N'-bis[(2-hidroxi-3,5-di-terc-butilbenzil)(2-piridilmetil)]-etilenodiamina na extração líquido-líquido dos íons Cd2+, Cu2+, Mn2+, Ni2+ e Zn2+. O ligante foi sintetizado e caracterizado por análise elementar de C e N, espectroscopia n

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Eriksson, Tom. "LiMn₂O₄ as a Li-ion Battery Cathode. From Bulk to Electrolyte Interface." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2001. http://publications.uu.se/theses/91-554-5100-4/.

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Chou, Yen-chin, and 周彥志. "A Study on the Adsorption Equilibria of Manganese(Ⅱ) Ions by 2-Ethylhexyl Phosphonic Acid Mono-2-ethylhexyl Ester Extractant-impregnated Resin." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/6e32ud.

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碩士<br>國立臺北科技大學<br>化學工程研究所<br>97<br>In this paper, we used the ethylene glycol monobutyl ether, EGMBE as the modifier, dichloromethane as the diluents, and PC-88A as the extractant All of them were rendered into the extractant-impregnated resin, EIR, we examined the effects of various parameter, such as the initial concentration of the metal ions, the amount of EIR and the operating temperature. We investigated the adsorption of metal ions after reaching equilibrium between Manganese sulfate aqueous solutions and EIR. We also tried to fit the experiments data base on available models, we also u

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Wang, Ya-Chi, and 王雅琪. "Kinetics Studies on the Sorption of Manganese Ions from Aqueous Solutions with Di(2-ethylhexyl)phosphoric Acid-Impregnated Resins." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/7sd8rk.

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碩士<br>國立臺北科技大學<br>化學工程所<br>94<br>In this research，we studied the kinetics of the sorption of manganese ions from manganese nitrate aqueous solutions of D2EHPA impregnated Amberlite XAD-4 resin. In all experiments，we used the ethylene glycol monobutyl ether，EGMBE as the modifier，dichloromethane as the diluent，and D2EHPA as the extractant All of them were rendered into the extractant -impregnated resin，EIR，we examined the effects of various parameter，such as the initial concentration of the metal ions，the amount of EIR and the operating temperature.We investigated the adsorption of metal ions

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Αλεξανδρόπουλος, Δημήτρης. "Νέες πλειάδες μεικτού-σθένους (ΙΙ/ΙΙΙ) του μαγγανίου με υποκαταστάτη την 2-πυριδυλομεθανόλη : σύνθεση, δομή, χημική δραστικότητα και μαγνητική μελέτη". Thesis, 2012. http://hdl.handle.net/10889/5701.

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Η σύνθεση και ο χαρακτηρισμός πλειάδων των μετάλλων μετάπτωσης σε ενδιάμεσες οξειδωτικές βαθμίδες αποτελεί σήμερα έναν από τους κύριους ερευνητικούς στόχους πολλών επιστημονικών ομάδων παγκοσμίως εξαιτίας των εφαρμογών που βρίσκουν σε διάφορα επιστημονικά πεδία, όπως στη βιοανόργανη χημεία, στην επιστήμη των υλικών, στη μοριακή φυσική και ηλεκτρονική, και στη θεωρητική χημεία. Οι πλειάδες αυτές περιέχουν πολλές φορές έναν ασυνήθιστα μεγάλο αριθμό ασυζεύκτων ηλεκτρονίων στη θεμελιώδη κατάσταση και παρουσιάζουν εξαιρετικό ενδιαφέρον από μαγνητικής απόψεως. Αυτό συμβαίνει γιατί μια υψηλή τιμή spi

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Book chapters on the topic "Manganese ions (+2)"

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Bao, X. M. "Ferrous Ions and Manganous Ions." In Chemistry of Variable Charge Soils. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780195097450.003.0017.

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It has been seen in the previous chapter that, when organic reducing substances are in contact with soils, iron and manganese oxides of the soil can be reduced, producing ferrous and manganous ions. This reduction process is of particular significance for variable charge soils. This is because the contents of iron and manganese oxides in these soils are higher than those in constant charge soils, and therefore there is the basis for the production of large amounts of ferrous and manganous ions. On the other hand, the low pH of variable charge soils is one of the favorable factors in the reduct

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Sivakumar, Dr R., Dr A. Asrar Ahamed, and Dr V. Marimuthu. "GREEN SYNTHESIS AND CHARACTERIZATION OF TRIMETALLIC ALLOY NANOPARTICLES." In Futuristic Trends in Chemical Material Sciences & Nano Technology Volume 3 Book 13. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3becs13p2ch1.

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Crystallized Manganese (Mn), Nickel (Ni), Zinc (Zn) tri-metallic alloy nanoparticle have been prepared and stabilized using plant extracts of Caparis Zylanica leaves in an aqueous system. Aqueous solutions of Mn+2, Ni+2, Zn+2 ions are in 1:1:1 volume ratio of Mn-Ni-Zn alloy was treated with a filtered solution of Caparis Zylanica leaves extract for the formation of Mn-Ni-Zn tri-metallic alloy nano particles (Mn-Ni-ZnNPs). Analysis of the feasibility of the biologically synthesized bio-functional nanometal alloy from plant leaves extract is particularly noteworthy. The colloidal suspensions obt

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Sarjono, M. Baba, K. Ohta, K. Nishidate, I. Sokolska, and W. Ryba-Romanowski. "ESR and luminescence studies on formation of S2− ions through photochemical reactions in potassium halide crystals doped with sulfur and manganese." In EPR in the 21st Century. Elsevier, 2002. http://dx.doi.org/10.1016/b978-044450973-4/50051-2.

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Wohlfahrt-Mehrens, M. "SECONDARY BATTERIES – LITHIUM RECHARGEABLE SYSTEMS – LITHIUM-ION | Positive Electrode: Manganese Spinel Oxides." In Encyclopedia of Electrochemical Power Sources. Elsevier, 2009. http://dx.doi.org/10.1016/b978-044452745-5.00198-2.

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Bunker, Bruce C., and William H. Casey. "The Impact of Oxides on Environmental Chemistry." In The Aqueous Chemistry of Oxides. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780199384259.003.0027.

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The ancient Greek philosopher Empedocles defined our environments using the four basic elements of fire, earth, wind, and water. Although we now know there are at least 118 elements, of which 98 are naturally occurring, these ancient descriptions aptly describe the habitats on Earth that are occupied by oxides and living things. Many oxides that comprise Earth’s surface are born by the fire represented by the massive heat of Earth’s interior as mediated by plate tectonics. This heat produces the igneous rocks found in volcanoes and our major mountain chains. Water weathers these pristine rocks

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Conference papers on the topic "Manganese ions (+2)"

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Alghamdi, Amani, Saleh Salah, Mohammed Otaibi, Subhash Ayirala, and Ali Yousef. "Manganese Assisted Waterflooding Processes for Enhanced Oil Recovery in Carbonates." In SPE Middle East Oil & Gas Show and Conference. SPE, 2021. http://dx.doi.org/10.2118/204821-ms.

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Abstract Modifying the wettability of carbonate formations through divalent foreign metal incorporation can become a cost-effective practical method for enhanced oil recovery (EOR) applications. The addition of manganese ions to both high salinity water (HSW) and tailored SmartWater at dilute concentrations is exploited in this study to maximize the interfacial potential and promote water-wet conditions in carbonate reservoirs. In this experimental investigation, the impact of manganese ions on zeta-potentials at calcite/brine and crude oil/brine interfaces is first determined by measuring zet

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Vyatkin, A. F., Yu A. Agafonov, and A. N. Pustovit. "Cold implants of boron and manganese ions in Si, SiO[sub 2], and GaAs." In ION IMPLANTATION TECHNOLOGY 2012: Proceedings of the 19th International Conference on Ion Implantation Technology. AIP, 2012. http://dx.doi.org/10.1063/1.4766495.

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Nikitich, A. D., and V. M. Misiuchenka. "ANALYSIS OF THE CONTENT OF POLLUTANTS IN GROUNDWATER NEAR THE CLOSED POLYGON OF SOLID WASTE IN MINSK REGION." In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-2-311-314.

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The article considers the content of pollutants in groundwater near the closed municipal waste landfill in Minsk region during the three seasons of the year - spring, summer and autumn. It was revealed that the fluctuations in the content of total iron, sulfate ions, chloride ions changed insignificantly during different seasons of the year. While the mineralization of water increased by autumn, the content of ammonium ions decreased by autumn. The highest values were characterized by the content of such heavy metals as zinc, copper and manganese, while the excess of lead, chromium, cadmium an

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Kalniņa, Aija. "Ar divvērtīgā mangāna joniem aktivēta magnija germanāta materiāla ilgspīdošā luminiscence." In LU Studentu zinātniskā konference "Mundus et". LU Akadēmiskais apgāds, 2021. http://dx.doi.org/10.22364/lu.szk.2.rk.09.

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In the course of study, 10 different MgGeO3:Mn2+ samples with different manganese 2+ ion concentrations were synthesized: 0 mol%, 0.1 mol%, 0.25 mol%, 0.5 mol%, 0.75 mol%, 1 mol%, 1.5 mol%, 2 mol%, 5 mol% and 10 mol%. The samples emit a good luminescence in the red spectrum diapason and can be excited by ultraviolet radiation and X-rays. Samples can shine for up to more than 10 hours after excitation. X-ray diffraction, excitation spectra, luminescence spectra, afterglow spectra, extinction kinetics and thermostimulated luminescence were measured for samples. The obtained results provide the b

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Hasan RAHEEM, Zahraa, Mayson Thafir HADI та Saba jaafar AJEENA. "SYNTHESIS, CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY OF α-MnO2 NANORODS BEFORE AND AFTER DOPING WITH SOME TRANSITION METAL IONS". У VIII.International ScientificCongressofPure,AppliedandTechnological Sciences. Rimar Academy, 2023. http://dx.doi.org/10.47832/minarcongress8-14.

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The over use of some antibiotics can lead to the appearance of some resistant bacteria that can cause some serious illnesses. Hence, many intentions to prepare new materials that can act as antibacterial agents have been made over the last few years. Some nanomaterials are known to have good antibacterial activity. The aim of this paper is to describe the synthesis of manganese dioxide α-MnO2 nanorods before and after doping with (5% wt.) of the following transition metal ions (Fe+3, Co+3, Ni+2 and Cu+2) using a simple hydrothermal method and to compare the antibacterial activity of these mate

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Reyes-Ortega, Yasmi, Cándida Pastor Ramírez, Sylvain Bernès, Rafael Zamorano Ulloa, Daniel Ramírez-Rosales, and Samuel Hernández-Anzaldo. "Tetramer compound of manganese ions with mixed valence [Mn₂^IIMn₂^IV] and its spatial, electronic and magnetic studies." In The 1st International Electronic Conference on Crystals. MDPI, 2018. http://dx.doi.org/10.3390/iecc_2018-05245.

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Organizing Team, IECC. "Retraction: Ramírez, C.P., et al.; Tetramer compound of manganese ions with mixed valence [Mn₂^IIMn₂^IV] and its spatial, electronic and magnetic studies. Proceedings of The 1st International Electronic Conference on Crystals, Volume 1, 2018, 05245." In The 1st International Electronic Conference on Crystals. MDPI, 2018. http://dx.doi.org/10.3390/iecc_2018-05472.

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Gu, Y., G. D. West, R. C. Thomson, and J. Parker. "Investigation of Creep Damage and Cavitation Mechanisms in P92 Steels." In AM-EPRI 2013, edited by D. Gandy and J. Shingledecker. ASM International, 2013. http://dx.doi.org/10.31399/asm.cp.am-epri-2013p0596.

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Abstract Contrary to expectations, long-term performance of creep stress enhanced ferritic steels (CSEF) falls short of predictions based on short-term data. This discrepancy is attributed to the formation and growth of creep voids, leading to reduced ductility. This study investigates cavities in creep-tested P92 steel, revealing an association with large ceramic particles (1-2 μm) in standard samples. Three distinct particle compositions were identified: boron nitride (BN), manganese sulfide, and γ-Al2O3. Statistical analysis showed a strong correlation between BN particles and cavity format

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Madden, Connor, Austin R. J. Downey, Austin R. J. Downey, Yohanna MejiaCruz, and Robin James. "Inferring Battery Current Interrupt Device Activation in a 18650 Cell under High C Discharge using a Foil Strain Gauge." In ASNT Research Symposium 2024. The American Society for Nondestructive Testing, 2024. http://dx.doi.org/10.32548/rs.2024.013.

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In certain emergency situations, lithium-ion batteries are placed in rapid discharge scenarios that require high current draw. This includes applications where high current loads are required and the loss of power from a battery is unacceptable. Under a significant load, electrolyte vaporization causes gas to accumulate in batteries degrading capacity and potentially leading to current disconnect. This work examines using foil strain gauges to monitor internal pressure accumulation of the batteries. This study focuses on the monitoring of a single cell experiencing a 16 C discharge. This resea

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