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Готові списки джерел за темами / HPS MN 100 / Статті в журналах

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Статті в журналах з теми "HPS MN 100"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Grigorev, M., M. Lebedeva, O. Manaenkov, and A. Filatova. "Cellobiose hydrogenation to D-sorbitol using Ru/HPS MN 100 catalyst." Bulletin of Science and Practice 4, no. 12 (2018): 101–5. https://doi.org/10.5281/zenodo.2254889.

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Анотація:

This work is devoted to the process of cellobiose (4-O–beta–D–glucopyranosyl–D–glucose) hydrogenation to D–sorbitol, which is valuable raw material for food, chemical, and pharmaceutical industries. The data on the regularities of the catalytic hydrogenation of cellobiose to D–sorbitol are presented in this work. Cellobiose hydrogenation was performed in a batch reactor. The catalytic system presented by 3 wt. % ruthenium supported on the hypercrosslinked polystyrene (HPS) was used as a catalyst for cellobiose hydrogenation. The catalyst was produced b

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2

Matveeva, V. G., O. V. Manaenkov, A. E. Filatova, et al. "Hydrolytic Hydrogenation of Cellulose with the Use of the Ru-containing Polymeric Catalysts." MOLECULAR SCIENCES AND APPLICATIONS 1 (July 14, 2021): 35–41. http://dx.doi.org/10.37394/232023.2021.1.7.

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The study presents the results of cellulose hydrolytic hydrogenation process in subcritical water in the presence of Ru-containing catalysts based on hypercrosslinked polystyrene (HPS) MN-270 and its functionalized analogues: NH2-HPS (MN-100) and SO3H-HPS (MN-500). It was shown that the replacement of the traditional support (carbon) by HPS increases the yield of the main cellulose conversion products – polyols – important intermediates for the chemical industry. The catalysts were characterized using transmission electron microscopy (TEM), high resolution TEM, and porosity measurements. Catal

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3

Grigorev, M., M. Lebedeva, O. Manaenkov, V. Doluda, A. Filatova, and V. Matveeva. "Hydrogenation of d-mannose to d-mannite using the catalyzer Ru/MN 100." Bulletin of Science and Practice, no. 12 (December 11, 2017): 118–24. https://doi.org/10.5281/zenodo.1101190.

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This work is devoted to the process of hydrogenation of D–mannose to D–mannitol, which is valuable raw material for food, chemical and pharmaceutical industries. Experimental data on catalytic hydrogenation of D–mannose to D–mannitol, i. e. the dependence of the substrate conversion on temperature (varied from 393 up to 493 K), partial hydrogen pressure (varied from 20 atm up to 80 atm) and concentration of D–mannose (varied from 0.1 mol/L up to 0.6 mol/L), are presented in this work. The dependence of selectivity of the catalytic hydrogenation process on the

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4

Максим Евгеньевич, Григорьев,, and Сидоров, Александр Иванович. "DETERMINATION OF CHARACTERISTICS OF THE SURFACE OF THE CATALYST Ru/HPS MN 100 (H2)." Вестник Тверского государственного университета. Серия: Химия, no. 3(49) (October 28, 2022): 29–38. http://dx.doi.org/10.26456/vtchem2022.3.4.

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В статье показана значимость использования метода низкотемпературной адсорбции азота для анализа поверхности каталитических систем. Этим методом был исследован гетерогенный катализатор Ru/СПСMN 100 (Н). Данный катализатор показал высокие значения конверсии и селективности по многоатомным спиртам при его использовании в процессе жидкофазного гидрирования моно- и дисахаридов (глюкозы, ксилозы, мальтозы, маннозы, лактозы до соответствующих полиолов).Полученная изотерма адсорбции для Ru/СПСMN 100 (Н2)была отнесена к одному из типов изотерм по классификации Брунауэра, а также охарактеризована петля

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5

Григорьев, Максим Евгеньевич, Олег Викторович Манаенков, Валентина Геннадьевна Матвеева, and Роман Викторович Бровко. "APPLICABILITY OF THE LANGMUIR-HINSHELWOOD MODEL TO HYDROGENATION OF MONO - AND DISACCHARIDES ON THE Ru/HPS MN 100 CATALYST." Вестник Тверского государственного университета. Серия: Химия, no. 3(41) (November 10, 2020): 29–40. http://dx.doi.org/10.26456/vtchem2020.3.4.

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В данной статье представлены данные по физико-химическому исследованию гетерогенного рутений содержащего катализатора Ru/СПС MN 100. Представлена важность таких исследование для изучения каталитических реакций, для установления возможного механизма реакции гидрирования, а так же как дополнения при кинетических исследованиях. В статье катализатор исследован методом низкотемпературной адсорбции азота, хемосорбции водорода, просвечивающей электронной микроскопии (ПЭМ) и рентгенофотоэлектронной спектроскопии (РФЭС). Метод низкотемпературной адсорбции азота позволил установить, что катализатор хара

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6

Григорьев, Максим Евгеньевич, Роман Викторович Бровко, and Евгений Олегович Долуда. "THE USE OF ULTRASOUND IN THE PREPARATION OF THE CATALYST Ru/HPS MN 100 AND ITS ACTIVITY IN THE PROCESS OF HYDROGENATION OF XYLOSE AND LACTOSE." Вестник Тверского государственного университета. Серия: Химия, no. 3(45) (October 18, 2021): 41–48. http://dx.doi.org/10.26456/vtchem2021.3.5.

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В работе рассмотрена возможность использование ультразвука при получении рутений содержащей каталитической системы Ru/СПС MN 100. Проведено кинетическое тестирование данного катализатора и сравнение его активности с таким же катализатором, но синтезированным без использования ультразвука, в процессе гидрирования ксилозы и лактозы до соответствующих полиолов - ксилита и лактита. Процесс гидрирования осуществлялся в реакторе периодического и непрерывного действия при оптимальных условиях (температуре, концентрации моно- и дисахарида, парциальном давлении водорода, скорости подачи водного раствор

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7

CAMPESE, C., S. JARRAUD, C. SOMMEN, C. MAINE, and D. CHE. "Legionnaires' disease in France: sensitivity of the mandatory notification has improved over the last decade." Epidemiology and Infection 141, no. 12 (2013): 2644–49. http://dx.doi.org/10.1017/s0950268813000502.

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SUMMARYThe notification rate of Legionnaires' disease (LD) in France was 2·4/100 000 population in 2010, varying across regions with an increasing rate from west to east. Two sources [mandatory notifications (MN) and a survey of hospital laboratories] were used in a capture–recapture study to estimate the number of LD cases and the sensitivity of the MN system at national and regional levels in 2010. The number of missed cases was estimated using Chapman's method. The estimated sensitivity of MN was 88·5% (95% CI 88·0–89·0) and ranged from 70% to 100% by region. The estimated incidence was 2·7

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8

Rathore, Mala, and Hemant Kumar. "Cordia gharaf : An important lesser known fruit tree of Rajasthan." INTERNATIONAL JOURNAL OF PLANT SCIENCES 16, no. 2 (2021): 131–34. http://dx.doi.org/10.15740/has/ijps/16.2/131-134.

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Cordia gharaf is a small bushy tree or a large shrub belonging to family Boraginaceae found growing in the arid and semi-arid tropics. It is mainly important due to its ethnopharmacological and chemotaxonomic properties but also has edible fruits which contribute significantly to the food and energy needs of rural populations. Fruits are sweet and mucilaginous and much relished by children. These are either eaten raw or cooked, often put in porridge and used as a sugar substitute. They are often sold in the local market of Jodhpur, Rajasthan, at about Rs. 80-100/- per kg. Owing to edible and m

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9

Pappa, F. K., C. Tsabaris, H. Kaberi, et al. "Radiotoxic metals concentration measurement in sediments due to gold mining activities, Chalkidiki." HNPS Proceedings 22 (March 8, 2019): 102. http://dx.doi.org/10.12681/hnps.1939.

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The mining operation and tailing deposits in Stratoni region, Northern part of Greece, make monitoring activities necessary both in the terrestrial and coastal areas. As a part of a preliminary monitoring action, in summer of 2012, surface sediment samples in the coastal area of Stratoni (in Ierissos Gulf) were collected and measured aiming a) to obtain concentration levels of (Natural Occurring Radioactive Materials) NORM and heavy metals (e.g. As, Zn, Cu, Pb and Mn,), b) to identify minerals composition and c) to determine the distribution of the grain size. The activity concentrations of 23

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10

Song, Guolin, Chengzhu Shen, David Bassir, and Qiulin Li. "A Symmetry Concept for the Self-Assembly Synthesis of Mn-MIL-100 Using a Capping Agent and Its Adsorption Performance with Methylene Blue." Symmetry 15, no. 7 (2023): 1334. http://dx.doi.org/10.3390/sym15071334.

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In this study, a facile strategy of regulated self-assembly synthesis of Mn-MIL-100, using sodium acetate (CH3COONa) as a mono-dentate ligand capping agent (CA), was proposed. The as-prepared product is denoted Mn-MIL-100-CA. The coordination modulation of CH3COONa, led by its interference in the connectivity and symmetry of the metal centers and organic nodes, plays a vital role in the synthesis process. The crystallinity, morphology, topology, and properties of such MOF products were improved, since the self-assembly process of Mn-MIL-100-CA was promoted and regulated effectively. The materi

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11

Qin, Jiaheng, Yu Long, Galian Gou, et al. "Tuning effect of amorphous Fe2O3 on Mn3O4 for efficient atom-economic synthesis of imines at low temperature: improving [O] transfer cycle of Mn3+/Mn2+ in Mn3O4." Catalysis Science & Technology 10, no. 16 (2020): 5628–40. http://dx.doi.org/10.1039/d0cy01021a.

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A novel Fe<sub>2</sub>O<sub>3</sub> modified Mn<sub>3</sub>O<sub>4</sub> catalyst (Fe<sub>5</sub>Mn<sub>5</sub>-100) has been prepared by adopting a simple co-precipitation method following low temperature baking. Fe<sub>5</sub>Mn<sub>5</sub>-100 showed exceptionally high catalytic activity for the production of imine.

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12

Semenov, Sergey, Victor Сhechel, Evgeny Galat, and Georgy Leonov. "Supplementary force comparison COOMET.M.F-S1. Measurand force: 50 kN, 100 kN, 200 kN, 500 kN, 1 MN, 1.5 MN, 1.95 MN." Metrologia 62, no. 1A (2025): 07004. https://doi.org/10.1088/0026-1394/62/1a/07004.

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Main text This report presents the results of a supplementary comparison in the field of force measurements in the range from 50 kN up to 1 950 kN. This comparison was carried out within the framework of the RMO COOMET. The national metrological institutes of Russia, Belarus and Ukraine participated in the range up to 1 000 kN. The national metrological institutes of Russia and Belarus participated in the range of over 1 000 kN. For the first time, a Build-up System consisting of three force transducers was used for comparison at 1 500 kN and 1 950 kN points. To reach the main text of this pap

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13

Halgaš, Radoslav, Ján Dusza, Jana Kaiferova, Lucia Kovácsova, and Neda Markovská. "Influence of Loading Conditions on the Deformation Behavior of Human Enamel Studied by Instrumented Indentation." Key Engineering Materials 586 (September 2013): 27–30. http://dx.doi.org/10.4028/www.scientific.net/kem.586.27.

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As the hardest and one of the most durable load bearing tissues of the body, enamel has attracted considerable interest from both material scientists and clinical practitioners due to its excellent mechanical properties. The aim of this investigation is to determine the influence of different loading conditions on the deformation behavior of human enamel using instrumented indentation and Berkovich indenter. The used samples were fresh intact human premolars, extracted due to orthodontic reasons. Hardness tests were performed with different loading regimes. To study the influence of loading ra

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14

Razaq, Dhawud Sabilur, Budhy Kurniawan, Ikhwan Nur Rahman, and Dicky Rezky Munazat. "Structure and Morphology Properties of Nanosized La_0.75K_0.05Ba_0.05Sr_0.15MnO₃ Manganite." Key Engineering Materials 860 (August 2020): 106–11. http://dx.doi.org/10.4028/www.scientific.net/kem.860.106.

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Nanosized La0.75K0.05Ba0.05Sr0.15MnO3 manganite have been synthesized using sol-gel method. Afterwards, the samples were sintered at eight different temperature ranging from 650 to 1000 °C. Phase purity, crystal structure and the morphology of the sample have been examined using X-Ray Diffractometer (XRD) and Scanning Electron Microscope. It has been found that different higher sintering temperature greatly affect the phase purity and crystallite size of the sample. Regardless of the sintering temperature, all the samples crystallized in rhombohedral structure with R-3c space group. The crysta

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15

Tuan, Nguyen Anh, Nguyen Van Thanh, Tran Thi Thuy Nu, et al. "Computational Design of Mn₄ Molecules with Strong Intramolecular Exchange Coupling." Communications in Physics 21, no. 2 (2011): 137. http://dx.doi.org/10.15625/0868-3166/21/2/108.

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The geometric and electronic structures of [Mn44+Mn3+3(µ3-L2 -)3(µ3-X -(OAc) - 3(dbm) -3] (L = O, X = F, dbmH = dibenzoyl-methane) molecule has been studied by first-principles calculations. It was shown in our previous paper that the ferrimagnetic structure of Mn$^{4 + }$Mn$^{3 + }_{3}$ molecules is determined by the $\pi $ type hybridization between the $d_{z^2}$ orbitals at the three high-spin Mn$^{3 + }$ ions and the $t_{2g}$ orbitals at the Mn$^{4 + }$ ion by the $p$ orbitals at the $\mu _{3}$-L$^{2 - }$ ions. To design new Mn$^{4 + }$Mn$^{3 + }_{3}$ molecules having much more stable ferr

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16

Udhayavani, S., та K. Subramani. "Mn(III)acetate-Induced Electron Transfer in Pentaammine Cobalt(III)Complexes of α-Amino Acids in Micellar Medium". E-Journal of Chemistry 9, № 2 (2012): 912–17. http://dx.doi.org/10.1155/2012/961585.

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A micellar catalyzed oxidation of pentaamminecobalt(III) complexes of α-amino acids by Mn(III)acetate in acidic medium yielding nearly 100% Co(II) and about 100% carbonyl compounds are ultimate products. The unbound amino acids yield about 100% of carbonyl compound in presence of micelles. The effect of variation of sulphuric acid has been carried. The decrease in UV-Visible absorbance at λ=502 nm for Co(III) complex corresponds to nearly 100% of the initial absorbance. In spite of the stoichiometry of Mn(III) to unbound ligand is 2:1, the ratio of Mn(III) to cobalt(III) complex is 1:1 account

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17

Raimbekova, Ainur, Viktoriya Kapralova, Angelina Popova, et al. "CORROSION BEHAVIOR OF MILD STEEL IN SODIUM SULFATE SOLUTION IN PRESENCE OF PHOSPHATES OF DIFFERENT COMPOSITION." Journal of Chemical Technology and Metallurgy 59, no. 2 (2024): 367–77. http://dx.doi.org/10.59957/jctm.v59.i2.2024.16.

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Corrosion of mild steel in sodium sulfate solutions (1000 mg SO42- L-1) in the presence of various phosphateinhibitors was studied gravimetrically. Studies were performed under static conditions at room temperature. The known sodium polyphosphate inhibitor has been found to have low efficacy under these conditions. The inhibitor efficiency of its does not exceed 30.5 % at a concentration of 100 mg P2O5 L-1. It has been shown that a more effective inhibitor is calcium-manganese polyphosphate (Са, Mn)(PO3)2 obtained on the basis of manganese ore enrichment wastes of the Zhayrem deposit. The inhi

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18

Krivtsova, Elena K., Faina I. Ingel, and Lyudmila V. Akhaltseva. "Cytomic analysis: a modern universal tool for biomedical and ecological and hygienic research (literature review). Part 1." Hygiene and sanitation 100, no. 10 (2021): 1151–56. http://dx.doi.org/10.47470/0016-9900-2021-100-10-1151-1156.

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The understanding of the connection between malignant cell transformation and genetic instability has existed for a long time. Such markers of genetic instability as micronuclei (MN) and nuclear abnormalities - nucleoplasmic bridges (NPM) and nuclear buds are signs of malignant growth. However, they were seen only as a by-product of genetic instability, a convenient tool for its study for a long time. Only the studies of recent decades that used the latest methods of molecular genetic analysis (genome sequencing of an individual cell, long-term intravital microscopy and individual chromosomes

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19

Fasquelle, Didier, Nathalie Verbrugghe, and Stéphanie Députier. "Tungsten-Based Cost-Effective Gas Sensors for H2S Detection." Chemosensors 9, no. 11 (2021): 295. http://dx.doi.org/10.3390/chemosensors9110295.

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Tungsten trioxide thin films were deposited on silicon substrates by non-reactive RF sputtering from a WO3 target at room temperature. The WO3 films were post-annealed at two different temperatures, 400 °C and 500 °C. The morphological and microstructural properties of these films were analyzed by using atomic force microscopy and X-ray diffraction. X-ray diffraction patterns only show WO3 oxide phases. The AFM images show different morphologies with smaller grains for the film annealed at 400 °C. WO3 sensing films and W heating elements were embedded in commercial cases for the fabrication of

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20

Farrugia, Louis J., Paul R. Mallinson, and Brian Stewart. "Experimental charge density in the transition metal complex Mn2(CO)10: a comparative study." Acta Crystallographica Section B Structural Science 59, no. 2 (2003): 234–47. http://dx.doi.org/10.1107/s0108768103000892.

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An accurate experimental charge density study at 100 K of Mn2(CO)10 [bis(pentacarbonylmanganese)(Mn—Mn)] has been undertaken. A comparison with previously reported structural determinations reveals no evidence for significant Mn—Mn bond lengthening between 100 and 296 K. The nature of the metal–metal and metal–ligand atom interactions has been studied by topological analysis using the Atoms in Molecules (AIM) approach of Bader [(1990), Atoms in Molecules: a Quantum Theory.Oxford: Clarendon Press]. An analysis of the density ρ(r), the Laplacian of the density ∇2ρ(r b ) and the total energy dens

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21

Payuta, Aleksandra Aleksandrovna, Ekaterina Aleksandrovna Flerova, and Yuliya Vladimirovna Zaitseva. "HEAVY METAL CONTENT IN THE MUSCLE OF BREAM IN DIFFERENT REACHES OF THE RYBINSK RESERVOIR." Bulletin of KSAU, no. 1 (December 24, 2024): 103–8. https://doi.org/10.36718/1819-4036-2023-1-103-108.

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The purpose of the study is to determine the concentration of heavy metals (Cd, Pb, Al, Cr, Cu, Mn, Fe, Co, Ni, V) in the muscle tissue of bream from the Sheksna and Volga reaches – areas of the Rybinsk reservoir, which differ in the level of anthropogenic impact. Tasks – to reveal the intensity of accumulation of heavy metals in the muscles of bream from these stretches; evaluate the safety of meat for human consumption. The object of the study were sexually mature, approximately the same size individuals of bream caught by trawl during the feeding period (n = 40). Fish were dissected muscle

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22

Ilyasli, T., T. Gurbanova, D. Ajdarova, and T. Maksudova. "INVESTIGATION OF PHASE EQUILIBRIUM IN THE PbSe-Mn SYSTEM." Norwegian Journal of development of the International Science, no. 105 (March 25, 2023): 6–10. https://doi.org/10.5281/zenodo.7778811.

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<strong>Abstract</strong> The phase equilibrium in the PbSe-Mn system was studied by the methods of physicochemical analysis (DTA, XRD, MCA, as well as measurements of density and microhardness) and its T-x phase diagram was constructed. It has been established that the        PbSe-Mn system is a non-quasi-binary region of the Pb-Mn-Se ternary system. Single-phase alloys crystallize below the solidus line in the PbSe-Mn system at a concentration of 0-5 at. % Mn. In the concentration range of 5–10 at. % Mn, there is a two-phase region consisting of &alph

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23

Thompson, Ian A., Don M. Huber, and Darrell G. Schulze. "Evidence of a Multicopper Oxidase in Mn Oxidation by Gaeumannomyces graminis var. tritici." Phytopathology® 96, no. 2 (2006): 130–36. http://dx.doi.org/10.1094/phyto-96-0130.

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Manganese (Mn) oxidation by the plant-pathogenic fungus Gaeumannomyces graminis var. tritici has been correlated with virulence in take-all disease. The mechanism of Mn oxidation has not, however, been investigated adequately. Research on bacteria and other fungi indicates that Mn oxidation is most often the result of the activity of multicopper oxidases. To determine if G. graminis var. tritici oxidizes Mn by similar means, the Mn oxidizing factor (MOF) produced by G. graminis var. tritici was characterized by cultural, spectrophotometric, and cellulose acetate electrophoresis methods. Based

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24

Кimstach, T. V., and K. I. Uzlov. "ALLOYING ELEMENTS SYNERGIC AND SELECTIVE EFFECT ON MECHANICAL PROPERTIES OF CU-AL-SI-SN-MN SYSTEM BRONZE." Modern Problems of Metalurgy, no. 28 (June 30, 2025): 162–83. https://doi.org/10.34185/1991-7848.2025.01.10.

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Alloying elements synergic and selective effects on mechanical properties of Cu-Al-Si-Sn-Mn system cast bronze, which melt was poured and cooled into sand and steel molds, studies results are presented. Purpose – to establish regularities of Cu-Al-Si-Sn-Mn system alloying components synergic and selective influence and conditions for forming cast, non-heat-treated bronze with mass content of aluminum - 6.0...7.5%, silicon - 1.0...2.5%, manganese - 0.21...0.45%, tin - 1.0...2.2% on its mechanical properties at normal temperature, which melt has been poured into sand and steel casting mold. To d

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25

Raba-Paéz, Angela M., Ciro Falcony-Guajardo, Ivan Supelano-García, and Miryam R. Joya. "Niobium Pentoxide Samples with Addition of Manganese at Different Concentrations and Calcination Temperatures Applied in the Photocatalytic Degradation of Rhodamine B." Applied Sciences 10, no. 12 (2020): 4257. http://dx.doi.org/10.3390/app10124257.

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In order to improve the photocatalytic effect of Nb2O5, manganese from 1% to 10% was added by the polymeric precursor’s method. The samples obtained were subjected to different calcination temperatures from 400 to 700 °C. Characterization of the synthesized materials was performed by XRD, IR, Raman and Diffuse Reflectance Spectroscopy (DRS) spectroscopy, FE-SEM, Brunauer–Emmett–Teller (BET) method, Photoluminescence (PL) and Dynamic Light Scattering (DLS). Photocatalytic performance for degradation of Rhodamine B was also evaluated. The Rietveld refined X-Ray Diffraction (XRD) pattern of Nb2O5

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26

Sabermahani, Fatemeh, and Mohammad Ali Taher. "Determination of Trace Amounts of Nickel, Manganese, Cobalt, and Zinc in Environmental Samples After Separation and Preconcentration by Use of Polyacrylic Acid/Alumina Sorbent." Journal of AOAC INTERNATIONAL 91, no. 3 (2008): 646–52. http://dx.doi.org/10.1093/jaoac/91.3.646.

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Abstract Manganese, nickel, cobalt, and zinc are elements that appear together in many real samples. In this work, a simple, rapid, and sensitive method has been used for the simultaneous separation and preconcentration of trace amounts of these elements using water-soluble polyacrylic acid on alumina as a sorbent in a glass column system. A solution containing Mn, Ni, Co, and Zn was passed through the column at pH 7, and desorption was carried with 5.0 mL of 0.03 M nitric acid. Linearity was maintained between 0.255.0 103, 0.046.0 103, 0.108.0 103, and 0.0281.0 103 ng/mL for Ni, Mn, Co, and Z

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27

Owoyemi, Ewaoluwa P., Babatunde Ogunlade, Mojisola A. Olawale, and Ayodeji S. Boboye. "Unravelling Tamoxifen’s Neuroprotective Effects against Manganese-Induced Neurodegeneration, Cognitive Impairment and Hippocampal Damage Via the Nrf-2 Pathway in Adult Male Wistar Rats." International Neuropsychiatric Disease Journal 21, no. 6 (2024): 55–72. http://dx.doi.org/10.9734/indj/2024/v21i6454.

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Aims: Neurodegenerative diseases pose a serious threat to public health. Manganese (Mn) is a metal necessary for biological systems; however, it can become hazardous at high concentrations, causing neurological damage. This study explores tamoxifen's potential to protect against Mn-induced neurotoxicity in adult male Wistar rats. Methodology: Forty (40) adult male Wistar Rats weighing between 170g-220g were used and divided into four groups (A-D) (n=10). Manganese (Mn) and Tamoxifen (TMX) dosages were prepared and administered daily for 45 days through oral gavage. Group A received normal sali

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28

Zhou, Jigang, Jian Wang, Jeffrey Cutler, Enyuan Hu, and Xiao-Qing Yang. "Imaging the surface morphology, chemistry and conductivity of LiNi1/3Fe1/3Mn4/3O4 crystalline facets using scanning transmission X-ray microscopy." Physical Chemistry Chemical Physics 18, no. 33 (2016): 22789–93. http://dx.doi.org/10.1039/c6cp03511f.

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Scanning transmission X-ray microscopy (STXM) using the X-ray fluorescence mode has been employed to elucidate the chemical structures at Ni, Fe, Mn and O sites from the (111) and (100) facets of micron-sized LiNi<sub>1/3</sub>Fe<sub>1/3</sub>Mn<sub>4/3</sub>O<sub>4</sub> energy material particles.

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29

Minkenova, K. S., N. K. Nurgaisinova, N. V. Larionova, M. T. Dyusembayeva, and L. A. Nemytova. "ASSESSMENT OF THE EFFECT OF RADIONUCLIDE AND CHEMICAL CONTAMINATION ON THE CYTOGENETIC PARAMETERS OF THE BUSH GRASS (CALAMAGROSTIS EPIGEJOS)." NNC RK Bulletin, no. 4 (December 30, 2024): 101–7. https://doi.org/10.52676/1729-7885-2024-4-101-107.

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The article presents the study results of the effect of radionuclide and chemical contamination on the cytogenetic parameters of the bush grass (Calamagróstis epigéjos) growing on the Degelen mountain massif of the Semipalatinsk Test Site. The combined effect of ionizing radiation and the concentration of chemical elements in plants has been revealed. With an increase in the radiation dose from 5.0·10−6 to 2.5·10−5 Gy/h, minor changes are observed – an increase in the frequency of aberrant cells of meristematic rootlets of seedlings of bush grass (Calamagroustis epigéjos), however, all changes

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McQuattie, Carolyn J., and George A. Schier. "Response of sugar maple (Acer saccharum) seedlings to manganese." Canadian Journal of Forest Research 30, no. 3 (2000): 456–67. http://dx.doi.org/10.1139/x99-229.

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Long-term research in north-central Pennsylvania has revealed high levels (>2000 ppm) of foliar Mn in seedlings and overstory sugar maples (Acer saccharum Marsh.). To determine thresholds for sensitivity of sugar maple to Mn, 4-week-old seedlings growing in sand were irrigated for 8 weeks with nutrient solution (pH 3.8) containing 0.1 (control), 5, 10, 20, 40, or 80 mg Mn/L. Seedling mortality occurred at 40 (92%) and 80 (100%) mg Mn/L. At lower Mn, seedling dry mass decreased with increasing Mn concentrations; root growth was inhibited more than shoot growth. Foliar concentrations of all m

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31

Dong, Xiao Feng, and Xin Mei Li. "Abrasive Wear Performance of Hot-Dipping Al-Mn Alloy Coatings on Q235." Key Engineering Materials 522 (August 2012): 13–16. http://dx.doi.org/10.4028/www.scientific.net/kem.522.13.

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The Q235 steel was modified by hot-dip-aluminizing technique, and Al-Mn alloy layer was obtained on the steel surface. Scan electron microscopy (SEM), X-ray diffraction (XRD) and abrasive wear tester were used to investigate the microstructure and wear performance of the Al-Mn alloy coatings. The results show that the surface of the obtained pure aluminum coatings is acicular, while blocks Al-Mn compounds phase exists in Al-Mn alloys layer, and the Al-Mn alloy layer is composed of Al, FeAl3, Fe2Al5 and MnAl6 phases. The experimental results showed that wear weight loss of aluminum coating is m

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32

Kiswanto, Kiswanto, and Wintah Wintah. "Pengolahan Air Kolam Tambang Batubara Menggunakan Membran Untuk Budidaya Perikanan." Jurnal Teknik Lingkungan 29, no. 1 (2023): 1–13. http://dx.doi.org/10.5614/j.tl.2023.29.1.1.

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Pengolahan air kolam pasca tambang batubara untuk budidaya perikanan perlu dilakukan. Tujuan penelitian ini adalah untuk mengolah air kolam pasca tambang yang digunakan untuk budidaya ikan. Metode pengambilan sampel adalah in situ dan ex situ, dan kemudian dianalisis di laboratorium Mer-C Universitas Diponegoro. Air yang dianalisis adalah kekeruhan, warna, total suspended solid (TSS), total dissolved solid (TDS), amonia (NH3-N), nitrat (NO3-N), nitrit (NO2-N), phospat (PO4-P), sulfide (H2S), besi (Fe) dan mangan (Mn). Analisis kualitas air dibandingkan dengan standar baku mutu air limbah tamba

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33

K. Allam, Nageh. "Optimized Extraction of Mesoporous Nanocomposites from Spent Li-Ion Batteries and Their Use to Construct High-Performance Supercapacitor Devices with Ultra-High Stability." ECS Meeting Abstracts MA2024-01, no. 55 (2024): 2947. http://dx.doi.org/10.1149/ma2024-01552947mtgabs.

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Lithium-ion batteries (LIBs) are one class of the most significant energy storage devices used nowadays. However, a huge number of spent batteries bring harmful resource waste and environmental hazards as LIBs are mainly composed of heavy metals and organic electrolytes. Consequently, recycling spent LIBs has become a hot topic lately, where researchers are actively working to develop a plethora of methods to extract valuable metals and components. In this study, mesoporous Li–Ni–Mn–Co oxide nanoparticles have been successfully extracted from spent Li-ion batteries using a simple microwave/pre

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34

Papa, Stefania, Giovanna Marta Fusco, Michele Ciriello, et al. "Microbial and Non-Microbial Biostimulants as Innovative Tools to Increase Macro and Trace Element Mineral Composition of Tomato and Spinach." Horticulturae 8, no. 12 (2022): 1157. http://dx.doi.org/10.3390/horticulturae8121157.

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The use of biostimulants has gained popularity in recent years as a sustainable approach to increase the yield and quality of horticultural crops. However, information is missing concerning their ability to enhance the concentration of some beneficial elements (macro- and microelements) in the edible tissues of plants, which, in turn, are useful for human health. For this reason, we investigated the effects of different microbial and non-microbial biostimulants on the content of essential macro- and micro-nutrients (P, K, Ca, Mg, Cu, Fe, Mn, Zn, Se) in San Marzano and Datterino tomatoes (Solan

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35

Kashefi, Kazem, and Derek R. Lovley. "Reduction of Fe(III), Mn(IV), and Toxic Metals at 100°C by Pyrobaculum islandicum." Applied and Environmental Microbiology 66, no. 3 (2000): 1050–56. http://dx.doi.org/10.1128/aem.66.3.1050-1056.2000.

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ABSTRACT It has recently been noted that a diversity of hyperthermophilic microorganisms have the ability to reduce Fe(III) with hydrogen as the electron donor, but the reduction of Fe(III) or other metals by these organisms has not been previously examined in detail. WhenPyrobaculum islandicum was grown at 100°C in a medium with hydrogen as the electron donor and Fe(III)-citrate as the electron acceptor, the increase in cell numbers of P. islandicum per mole of Fe(III) reduced was found to be ca. 10-fold higher than previously reported. Poorly crystalline Fe(III) oxide could also serve as the

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36

Qin, Lu, Xin Yu, Kang Wang, and Xitao Wang. "Spherical ZVI/Mn-C Bimetallic Catalysts for Efficient Fenton-like Reaction under Mild Conditions." Catalysts 12, no. 4 (2022): 444. http://dx.doi.org/10.3390/catal12040444.

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The heterogeneous Fenton-like reaction has been receiving increasing attention for its inexpensiveness and high efficiency in water treatment. In this study, a novel strategy was proposed for preparing spherical ZVI/Mn-C bimetallic catalysts with a high activity for a Fenton-like reaction by using the ammonium alginate assisted sol–gel method coupled with a carbothermic reduction. The results showed that the obtained ZVI/Mn-C spheres had a uniform size, smooth surface and good sphericity, and the particle size of ZVI was limited to about 30 nm by the carbon layer. Among all catalysts, the ZVI/

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37

Widiyanto, Himawan, Ganes Shukri, Mohammad Kemal Agusta, Qory Cipta Scientika, Afthon Ilman Huda Isyfi, and Dhias Pratama Lazuarfy. "Effect Of Manganese Alloy Concentration on the Intercalation Voltage Variation in Na₃V_2-xMn_x(PO₄)₃ Cathode Material." Journal of Physics: Conference Series 2980, no. 1 (2025): 012017. https://doi.org/10.1088/1742-6596/2980/1/012017.

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Abstract Vanadium as one of the components in the Na3V2(PO4)3 (NVP) cathode Na-ion batteries material is a toxic element and has limited natural abundance. Partial or even complete replacement of vanadium without significantly sacrificing the NVP overall electrochemical performance is desirable. Herein, by using comprehensive first-principles density functional theory (DFT)-based calculations, we investigate the effect of manganese (Mn) alloying on the intercalation voltage of NVP cathode. Our study substantiates that variations in manganese concentration up to 100% can potentially sustain str

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38

Yang, Min, Genli Shen, Qi Wang, et al. "Roles of Oxygen Vacancies of CeO2 and Mn-Doped CeO2 with the Same Morphology in Benzene Catalytic Oxidation." Molecules 26, no. 21 (2021): 6363. http://dx.doi.org/10.3390/molecules26216363.

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Mn-doped CeO2 and CeO2 with the same morphology (nanofiber and nanocube) have been synthesized through hydrothermal method. When applied to benzene oxidation, the catalytic performance of Mn-doped CeO2 is better than that of CeO2, due to the difference of the concentration of O vacancy. Compared to CeO2 with the same morphology, more oxygen vacancies were generated on the surface of Mn-doped CeO2, due to the replacement of Ce ion with Mn ion. The lattice replacement has been analyzed through XRD, Raman, electron energy loss spectroscopy and electron paramagnetic resonance technology. The forma

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39

Aoyagi, Yoshio, Maki Okube, and Satoshi Sasaki. "Distribution of mixed-valence ions in Mn1+xFe2-xO4ferrites." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1354. http://dx.doi.org/10.1107/s2053273314086458.

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Mn ferrite has a spinel structure to show the ferrimagnetism, where the magnetic moments show a collinear ferrimagnetic ordering between tetrahedral A and octahedral B sites. Since Mn2+ and Fe3+ have the same electronic configuration, it is not easy to determine the cation distribution of Mn ferrite from usual magnetization measurements. Especially in Mn ferrite, both Mn2+ and Fe3+ have a large spin polarization to give strong magnetic moments through the super exchange interaction between the two sites. Replacing Fe3+ by Mn2+ and Mn4+, the ferrimagnetic property weakens through magnetic balan

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40

Ablat, Abduleziz, Emin Muhemmed, Cheng Si, et al. "Electronic Structure of BiFe1−xMnxO3Thin Films Investigated by X-Ray Absorption Spectroscopy." Journal of Nanomaterials 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/123438.

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Multiferroic polycrystalline BiFe1-xMnxO3(0≤x≤0.3) thin films have been prepared on the Pt(111)/Ti/SiO2/Si(100) substrates by pulsed laser deposition method. The influence of Mn substitution on the electronic structure and magnetic properties has been studied. X-ray diffraction spectroscopy shows that Mn substitution slightly modulates crystal structure of the BiFe1-xMnxO3system within the same structural phase. According to FeLedge X ray absorption spectroscopy, Fe ions are found to be formally trivalent for doping amountxin BiFe1-xMnxO3. The enhanced magnetization by increasing Mn content is

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41

Safar Mahdi, Honar. "Phytochemical Analysis, Nutritional Value And Ethnobotanical Knowledge of Pelargonium Quercetorum Agnew (geraniaceae)." Journal Of Duhok University 23, no. 2 (2020): 153–68. http://dx.doi.org/10.26682/ajuod.2020.23.2.19.

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Pelargonium quercetorum Agnew is an edible wild species of Pelargonium genus which has a lot of concern in term of ethnobotanical knowledge, nutrition value and phytochemical analysis. Traditionally, it was providing local and rural people medicines and food security. Nowadays, wild edible plants (WEPs) become a central action to preserve the culture that belongs to the natural heritage. Thus, the aim of this research is to investigate ethnobotanical knowledge related to the traditions, phytochemical and nutritional value of P. quercetorum. Semi questionnaire has been used in Deralok town for

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42

Jamel Y. Ali Altememe and Noor E.M. Hachim. "Effect of spraying of GA3 and Some Micronutrients on the growth and Mineral content of Cress plant (Lepidium sativum L.)." Tikrit Journal of Pure Science 25, no. 2 (2020): 14–20. http://dx.doi.org/10.25130/tjps.v25i2.229.

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This study is conducted in aspicial farm in Adujail city\Salahaddin Governorate at the season 2015 on the cress plant. Afactorial experiment has conducted with two factors, the first is spraying with GA3 (G0 without spraying, G1 spraying with 50 mg.L-1, G2 spraying with 100 mg.L-1of GA3).the second factor is spraying with Micro Nutrients (T0 without spraying, T1spraying with 50 mg.L-1 of Fe,T2 spraying with 50 mg.L-1 of Mn, T3 spraying with amixture of 50+50 mg.L-1from Fe and Mn). The experiment is designed with (RCBD), the treatments were replicated 4 times and Duncuns Multiple Range Test at

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43

Li, Yingjie, Zhiqiang Ou, Yuanjie Hao, Haschuluu Oimod, Tegus Ojiyed, and Ikuo Nakai. "Mechanical alloying process of Mn₁₂₅Fe₇₀P₅₀Si₅₀ composites revealed by XRD and XAFS." Japanese Journal of Applied Physics 64, no. 7 (2025): 072001. https://doi.org/10.35848/1347-4065/ade5df.

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Abstract We have investigated how mechanical milling during 220 h affects the structure of Mn125Fe70P50Si50 mixtures by means of X-ray diffraction and X-ray absorption fine structure. The long-range order is maintained around the Fe and Mn atoms during the first stage of milling, that is, for 100 and 170 h, respectively. The Rietveld refinement of the Mn lattice gives a linear decrease in lattice parameter with milling time. In the subsequent stage of milling, the local structure around the Fe and Mn atoms has only the short-range order. The Mn125Fe70P50Si50 composite is finally transformed in

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44

Mikolajczak, Piotr, and Lorenz Ratke. "Three Dimensional Morphology of Mn Rich Intermetallics in AlSi Alloys Investigated with X-Ray Tomography." Materials Science Forum 790-791 (May 2014): 335–40. http://dx.doi.org/10.4028/www.scientific.net/msf.790-791.335.

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Elementary Mn has a great importance as neutralizer of Fe intermetallics like β-Al5FeSi, which have detrimental effect on mechanical characteristics of AlSi alloys. Presence of Mn in AlSi alloys causes the formation of other intermetallic phases. To understand the effect of solidification conditions and fluid flow on the microstructure of AlSi-based alloys and the addition of Mn leading to Mn-based intermetallics, Al-5 wt pct Si 0.2/0.4/1.0 wt pct Mn alloys have been directionally solidified under defined thermal (gradient 3 K/mm, solidification velocity 0.02-0.12 mm/s) and fluid flow (rotatin

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45

Ragel, Brian T., Isaac L. Elam, David L. Gillespie, et al. "A novel model of intracranial meningioma in mice using luciferase-expressing meningioma cells." Journal of Neurosurgery 108, no. 2 (2008): 304–10. http://dx.doi.org/10.3171/jns/2008/108/2/0304.

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Object Meningioma research has been hindered by the inability to sequentially measure intracranial tumor growth in a cost-effective, efficient manner. Recently, the luciferase gene has been transfected into cancer lines to obtain cells that express the luciferase enzyme, which oxidizes luciferin in a reaction that releases photon energy that can be measured noninvasively by bioluminescence imaging (BLI) systems. The authors describe a mouse model of intracranial meningioma that uses this novel BLI system. Methods The immortal meningioma cell lines CH-157-MN and IOMM-Lee were transfected with l

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46

Васьковский, В. О., А. А. Фещенко, М. Е. Москалев, В. Н. Лепаловский, Е. А. Кравцов та А. Н. Горьковенко. "Влияние буферных покрытий на структурное состояние и магнитные свойства пленок (Cr-Mn)/Fe". Журнал технической физики 93, № 5 (2023): 679. http://dx.doi.org/10.21883/jtf.2023.05.55463.24-23.

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The article presents the results of a systematic study of the crystalline structure, microstructure, and hysteresis properties of (Cr80Mn20)/Fe bilayers, deposited on buffer coatings of various metals (Cr, Fe, W, Ta). It has been established that depending on the composition of the buffer coating and the thickness of the Cr-Mn layer, the latter develops body-centered cubic structure with either the (110) or (200) texture, or none. It is shown that the Cr-Mn layer is a source of increased coercivity in the adjacent Fe layer and when is in a certain structural state and has a relatively large th

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47

Koyama, S., Y. Isozumi, Y. Suzuki, M. Taki, and J. Miyakoshi. "Effects of 2.45-GHz Electromagnetic Fields with a Wide Range of SARs on Micronucleus Formation in CHO-K1 Cells." Scientific World JOURNAL 4 (2004): 29–40. http://dx.doi.org/10.1100/tsw.2004.176.

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There has been considerable discussion about the influence of high-frequency electromagnetic fields (HFEMF) on the human body. In particular, HFEMF used for mobile phones may be of great concern for human health. In order to investigate the properties of HFEMF, we have examined the effects of 2.45-GHz EMF on micronucleus (MN) formation in Chinese hamster ovary (CHO)-K1 cells. MN formation is induced by chromosomal breakage or inhibition of spindles during cell division and leads to cell damage. We also examined the influence of heat on MN formation, since HFEMF exposure causes a rise in temper

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48

Susilawati, S., A. R. Rizki, and M. Irma. "Preparation and Characterization of Cocoa Shell - Pahae Natural Zeolite as a Metal Adsorption Material for Iron (Fe) and Manganese (Mn) in Water." Journal of Physics: Conference Series 2733, no. 1 (2024): 012006. http://dx.doi.org/10.1088/1742-6596/2733/1/012006.

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Abstract Research has been conducted on an adsorber made from cocoa shell activated charcoal and Pahae Natural Zeolite, designed as an absorber for Fe and Mn metals in well water purification. The cocoa shell were screened with a 100-mesh sieve, followed by carbonization to generate activated charcoal. In parallel, Pahae Natural Zeolite underwent a similar sieving process with a 100-mesh screen and was subsequently chemically activated using a 2.5 M NaOH solution. The compositions of the cocoa shell activated charcoal - Pahae Natural Zeolite adsorber were varied as follows (wt%): 100:0, 95:5,

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Hanley, K. W., R. N. Andrews, S. Bertke, T. Carter, K. Navarro, and K. Ashley. "Manganese fractionation using a sequential extraction method to evaluate welders’ flux core arc welding exposures in a shipyard, structural steel and custom parts manufacturers/Studie zur Bewertung der Exposition am Arbeitsplatz gegenüber Mangan (Mn) im Schweißrauch beim Fülldraht-Lichtbogenschweißen (flux core arc welding, FCAW) mithilfe eines sequentiellen Extraktionsverfahrens in einer Werft, bei Baustahl und Anlagen für Sonderteile." Gefahrstoffe 80, no. 05 (2020): 185–93. http://dx.doi.org/10.37544/0949-8036-2020-05-27.

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The National Institute for Occupational Safety and Health (NIOSH) has conducted an occupational exposure assessment study of manganese (Mn) in flux core arc welding fume at three facilities. The objective of this study was to evaluate exposures to different Mn fractions using a sequential extraction procedure. Sixty-seven worker-days were monitored for either total or respirable Mn. The samples were analyzed using an experimental method to separate four Mn fractions based on chemical solubility: soluble Mn in a mild ammonium acetate solution; Mn0,2+ in 25% acetic acid; Mn3+,4+ in hydroxylamine

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Lu, Yisi, Xiaofeng Liu, Mingxing Xie, and Xiaoqiang Dong. "Removal of Mn(II) from Acidic Wastewater on the Red Mud– Loess Mixture: Fixed–Bed Column Tests." IOP Conference Series: Earth and Environmental Science 1087, no. 1 (2022): 012078. http://dx.doi.org/10.1088/1755-1315/1087/1/012078.

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Abstract In this study, the purification effect of red mud–loess mixture (RM–L) as a reactive medium in a permeable reactive barrier (PRB) for groundwater contaminated by acidic wastewater (AW) containing Mn(II) was explored considering removal capacity and pH value, and the safety of Mn(II) on RM–L after purification was evaluated. The breakthrough parameters of the Mn(II) were determined and the purifying performances of RM–L toward AW were evaluated by fixed-bed column tests at various initial concentrations of Mn(II), flow rates, and packing heights. The speciation of Mn(II) loaded on the

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