Готові списки джерел за темами / MnO2 Cells

Добірка наукової літератури з теми "MnO2 Cells"

Автор: Grafiati

Опубліковано: 6 вересня 2023

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Статті в журналах з теми "MnO2 Cells"

Li, Xu, and Yuhui Ma. "MnO₂ nanodrug mediates the expression of antigen-presenting cell through combined chemotherapy to enhance the antineoplastic curative function." Materials Express 13, no. 6 (June 1, 2023): 935–41. http://dx.doi.org/10.1166/mex.2023.2432.

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Nano-conjugated compounds are studied in tumor treatment. However, little is known on the function of MnO2 nanodrug mediated by combined chemotherapy. This study explored the efficacy of MnO2 nanodrug applied in combined chemotherapy and evaluated its antineoplastic efficacy in vivo. Confocal microscope was used to detect the transfection efficiency in tumor cells. Nanoparticles with MnO2 as core (MnO2 NPs) were prepared. The antineoplastic activity efficiency of MnO2 NPs loaded with doxorubicin (DOX) was tested by cell viability test and cell biological behaviors. And the proliferation activity of the co-loading complex on tumor cells was tested in mice in vivo. RT-PCR and flow cytometry detected the expression of adenomatous polyposis coli (APC) mediated by MnO2 nanodrug combined chemotherapy. Co-loading MnO2 NPs and DOX showed a high activity on cells. The mobility of MnO2 NPs DOX cells was weakened and co-loading could inhibit cell invasion. The in vivo studies showed that the metastasis of tumor cells was inhibited after the mice received co-loading. Compared with DOX group, ki67 and APC in co-loading group decreased significantly and the expression of IFN-γ mediated by co-loading drugs was higher than control group, indicating that APC is involved in inhibiting tumor cell growth and metastasis by co-loading. MnO2 nanodrug can enhance the antineoplastic function through APC mediated by combined chemotherapy and inhibit the tumor growth by enhancing the synergistic function of inhibiting the growth, migration, and invasion of tumor cells.

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Kuwabara, K., K. Hanafusa, and K. Sugiyama. "MnO2 for Solid Electrolyte Cells." Journal of The Electrochemical Society 136, no. 2 (February 1, 1989): 319–23. http://dx.doi.org/10.1149/1.2096628.

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Holliman, Peter J., Arthur Connell, Eurig W. Jones, and Christopher P. Kershaw. "Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells." Materials 13, no. 4 (February 20, 2020): 949. http://dx.doi.org/10.3390/ma13040949.

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Whilst the highest power conversion efficiency (PCE) perovskite solar cell (PSC) devices that have reported to date have been fabricated by high temperature sintering (>500 °C) of mesoporous metal oxide scaffolds, lower temperature processing is desirable for increasing the range of substrates available and also decrease the energy requirements during device manufacture. In this work, titanium dioxide (TiO2) mesoporous scaffolds have been compared with metal oxide oxidation catalysts: cerium dioxide (CeO2) and manganese dioxide (MnO2). For MnO2, to the best of our knowledge, this is the first time a low energy band gap metal oxide has been used as a scaffold in the PSC devices. Thermal gravimetric analysis (TGA) shows that organic binder removal is completed at temperatures of 350 °C and 275 °C for CeO2 and MnO2, respectively. By comparison, the binder removal from TiO2 pastes requires temperatures >500 °C. CH3NH3PbBr3 PSC devices that were fabricated while using MnO2 pastes sintered at 550 °C show slightly improved PCE (η = 3.9%) versus mesoporous TiO2 devices (η = 3.8%) as a result of increased open circuit voltage (Voc). However, the resultant PSC devices showed no efficiency despite apparently complete binder removal during lower temperature (325 °C) sintering using CeO2 or MnO2 pastes.

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Elawwad, Abdelsalam, Mostafa Ragab, Ahmed Hamdy та Dalal Z. Husein. "Enhancing the performance of microbial desalination cells using δMnO2/graphene nanocomposite as a cathode catalyst". Journal of Water Reuse and Desalination 10, № 3 (15 липня 2020): 214–26. http://dx.doi.org/10.2166/wrd.2020.011.

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Abstract In this work, δMnO2 was anchored into graphene nanosheets via a mediated simple and eco-friendly approach to be used as a potential low-cost cathodic catalyst in microbial desalination cells (MDC). MnO2/G based MDC revealed a faster start-up and stable performance during the operation compared with the catalyst-free control MDC. The average chemical oxygen demand (COD) removal efficiencies were 85.11 ± 5.13 and 86.20 ± 4.85% and average columbic efficiencies throughout the operation cycles were 1.52 ± 0.32% and 0.70 ± 0.35% for MnO2/G based reactor and control reactor, respectively. The average desalination efficiencies were 15.67 ± 3.32 and 13.21 ± 2.61% for MnO2/G based reactor and control reactor, respectively. The superior catalytic performance of MnO2/G based cathode improved current generation which is the key desalination stimulus. MnO2/G based reactor revealed a lower internal resistance of 430 Ω compared with 485 Ω for the catalyst-free control reactor and, similarly, the maximum power densities were found to be 12.5 and 6.5 mW/m2, respectively. MnO2/G catalyst offered an improved MDC performance, however, still with uncompetitive performance in comparison with platinum group metals catalysts.

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Hu, Qin, Shu Zhang, Jun Zhu, Lina Yin, Suping Liu, Xiaowei Huang, and Guihao Ke. "The Promotional Effect of Hollow MnO2 with Brucea Javanica Oil Emulsion (BJOE) on Endometrial Cancer Apoptosis." BioMed Research International 2021 (March 18, 2021): 1–7. http://dx.doi.org/10.1155/2021/6631533.

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Endometrial cancer (EC) is a common gynecological malignancy worldwide whose therapy mainly depends on chemotherapy. In past years, an increasing number of studies indicate that hollow MnO2 could serve as a nanoplatform in the drug delivery system. The Brucea javanica oil emulsion (BJOE) has been illustrated to play a vital role in cancers. However, knowledge about the combined effect of H-MnO2-PEG/BJOE in endometrial cancer remains ambiguous up to now. In the present work, we prepared a drug-delivery vector H-MnO2-PEG by chemical synthesis and found that H-MnO2-PEG significantly inhibited cell proliferation in endometrial cancer cells. Moreover, the combination of H-MnO2-PEG/BJOE could repress cell proliferation more efficiently and promote cell apoptosis. Mechanistically, we found that BJOE exerted its role as a promoter of endometrial apoptosis by regulating relative protein expressions. In general, the present study demonstrates that H-MnO2-PEG functions as a critical vector in the tumor microenvironment of endometrial cancer and the significant effect of H-MnO2-PEG/BJOE on cancer cells, suggesting a new paradigm for the treatment of endometrial cancer.

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Tremouli, Asimina, Pavlos K. Pandis, Theofilos Kamperidis, Christos Argirusis, Vassilis N. Stathopoulos, and Gerasimos Lyberatos. "Performance Comparison of Different Cathode Strategies on Air-Cathode Microbial Fuel Cells: Coal Fly Ash as a Cathode Catalyst." Water 15, no. 5 (February 23, 2023): 862. http://dx.doi.org/10.3390/w15050862.

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The effect of different cathode strategies (mullite/MnO2, Plexiglas/Gore-Tex/MnO2, mullite/coal fly ash, mullite/biochar, mullite/activated carbon) on the performance of air-cathode microbial fuel cells (MFCs) was investigated. The highest maximum power output was observed using MnO2 catalyst pasted on Gore-Tex cloth (7.7 mW/m3), yet the highest coulombic efficiencies (CEs) were achieved using MnO2 (CE 23.5 ± 2.7%) and coal fly ash (CE 20 ± 3.3%) pasted on ceramic. The results showed that the utilization of coal fly ash and biochar as catalysts in MFC technology can be a sustainable and cost-effective solution.

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Dzieciuch, M. A., N. Gupta, and H. S. Wroblowa. "Rechargeable Cells with Modified MnO2 Cathodes." Journal of The Electrochemical Society 135, no. 10 (October 1, 1988): 2415–18. http://dx.doi.org/10.1149/1.2095349.

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Yamamoto, Takakazu, and Takayuki Shoji. "Rechargeable Zn∣ZnSO4∣MnO2-type cells." Inorganica Chimica Acta 117, no. 2 (July 1986): L27—L28. http://dx.doi.org/10.1016/s0020-1693(00)82175-1.

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Kim, Sa Heum, and Seung Mo Oh. "Degradation mechanism of layered MnO2 cathodes in Zn/ZnSO4/MnO2 rechargeable cells." Journal of Power Sources 72, no. 2 (April 1998): 150–58. http://dx.doi.org/10.1016/s0378-7753(97)02703-1.

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Dessie, Yilkal, Sisay Tadesse та Rajalakshmanan Eswaramoorthy. "Surface Roughness and Electrochemical Performance Properties of Biosynthesized α-MnO2/NiO-Based Polyaniline Ternary Composites as Efficient Catalysts in Microbial Fuel Cells". Journal of Nanomaterials 2021 (30 червня 2021): 1–21. http://dx.doi.org/10.1155/2021/7475902.

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In this study, biosynthesized α-MnO2/NiO NPs and chemically oxidative polyaniline (PANI) were synthesized to form ternary composite anode material for MFC. The synthesized materials were characterized with different materials (UV-Vis, FTIR, XRD, TGA-DTA-DSC, SEM-EDX-Gwyddion, CV, and EIS) to deeply examine their optical, structural, morphological, thermal, roughness, and electrocatalytic properties. The degree of surface roughness for α-MnO2/NiO/PANI was 23.65 ± 5.652 nm . This value was higher than the pure α-MnO2, pure PANI, and even α-MnO2/PANI nanocomposite due to surface modification. The total charge storing performance for bare PGE, α-MnO2/PGE, PANI/PGE, α-MnO2/PANI/PGE, and α-MnO2/NiO/PANI/PGE were 5.291, 17.267, 20.659, 23.258, and 24.456 mC. From this, the charge storing performance formed by α-MnO2/NiO/PANI-modified PGE was highest, indicating that this electrode is best in cycle stability and increases its life cycle during energy conversion time in MFC. This is also supported by its effective surface area, having a value of 0.00984 cm2. From this, it is evidenced that the ternary composite catalyst-modified anode facilitates the fast electrocatalytic activity as observed from its high peak current and lower peak-to-peak potential separation ( Δ E p = 0.216 V ) than other electrodes. Such surface modification helps to store more electrical charge by increasing electrical conductivity during its charge/discharge processing time. In addition, the lower charge transfer resistance property with a value of 788.9 Ω and the fast heterogeneous electron transfer rate of ~2.92 s-1 enable to facilitate glucose oxidation, and this enhances to produce high power output and increase wastewater treatment efficiency. As a result, the bioelectrical activity of α-MnO2/NiO/PANI composite-modified PGE was very effective in producing a maximum power density of 506.96 mW m-2 with COD of 81.92%. The above observations justified that α-MnO2/NiO/PANI/PGE serves as an effective anode material in double-chambered MFC application.

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Дисертації з теми "MnO2 Cells"

Chen, Yingwen, Liuliu Chen, Peiwen Li, Yuan Xu, Mengjie Fan, Shemin Zhu, and Shubao Shen. "Enhanced performance of microbial fuel cells by using MnO2/Halloysite nanotubes to modify carbon cloth anodes." PERGAMON-ELSEVIER SCIENCE LTD, 2016. http://hdl.handle.net/10150/621214.

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The modification of anode materials is important to enhance the power generation of MFCs (microbial fuel cells). A novel and cost-effective modified anode that is fabricated by dispersing manganese dioxide (MnO2) and HNTs (Halloysite nanotubes) on carbon cloth to improve the MFCs' power production was reported. The results show that the MnO2/HNT anodes acquire more bacteria and provide greater kinetic activity and power density compared to the unmodified anode. Among all modified anodes, 75 wt% MnO2/HNT exhibits the highest electrochemical performance. The maximum power density is 767.3 mWm(-2), which 21.6 higher than the unmodified anode (631 mW/m(2)). Besides, CE (Coulombic efficiency) was improved 20.7, indicating that more chemical energy transformed to electricity. XRD (X-Ray powder diffraction) and FTIR (Fourier transform infrared spectroscopy) are used to characterize the structure and functional groups of the anode. CV (cyclic voltammetry) scans and SEM (scanning electron microscope) images demonstrate that the measured power density is associated with the attachment of bacteria, the microorganism morphology differed between the modified and the original anode. These findings demonstrate that MnO2/FINT nanocomposites can alter the characteristics of carbon cloth anodes to effectively modify the anode for practical MFC applications. (C) 2016 Elsevier Ltd. All rights reserved.

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Bouabdalaoui, Laila. "Etude de matériaux d'anodes à base de graphite modifié par des composés fer-soufre : applications aux piles à combustible microbiennes." Thesis, Evry-Val d'Essonne, 2013. http://www.theses.fr/2013EVRY0011/document.

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Une pile à combustible microbiennes (PCM) est un dispositif capable de produire de l’énergie électrique à partir d’énergie chimique grâce à l’activité catalytique des bactéries en présence de combustibles organiques. Ces travaux de thèse ont eu pour objectif la synthèse des nouveaux matériaux d’anode et de cathode qui pourraient constituer des alternatives aux matériaux à base de platine. Coté anode, nous avons synthétisé des matériaux par précipitation chimique sur du graphite en poudre à partir de mélanges contenant des ions ferreux et sulfures. Les caractérisations physicochimiques ont montré la formation de composés soufrés (mackinawite, polysulfures et soufre élémentaire) qui se transforment en produits soufrés plus oxydés en présence d’air. La formation de vivianite a été confirmée dans le cas d’un excès d’ions ferreux par rapport aux ions sulfures. Les analyses électrochimiques montrent que ces matériaux ont un comportement réversible avec des densités de courant d’oxydation élevées à bas potentiel. Coté cathode, nous avons choisi la synthèse par voie électrochimique d’un film de MnOx sur substrat d’acier inoxydable. Les caractérisations physicochimiques ont démontré la formation de la birnessite. Les analyses électrochimiques montrent que la réduction de ce matériau conduit à des courants cathodiques significatifs mais avec une réversibilité limitée, même en présence d’air. La réalisation de prototypes de PCM dans lesquels l’anode à base de composés soufrés est immergée dans une solution de terreau et la cathode à base de MnOx est au contact de l’air, a permis d’obtenir des puissances instantanées maximales de l’ordre de 12 W.m-3 et 1,8 W.m-2, et des densités de courant de l’ordre de 25 A.m-3 et 3,8 A.m-2. Un travail d’optimisation du fonctionnement de PCM a été réalisé. Ainsi, l’augmentation de la conductivité de la solution anodique et la diminution de quantité de sédiment dans la solution de terreau a permis d’améliorer la réponse électrochimique du matériau anodique et d’obtenir des puissances instantanées maximales de l’ordre de 17,5 W.m-3 et 2,7 W.m-2, et des densités de courant de l’ordre de 60 A.m-3 et 9,2 A.m-2. Le facteur limitant reste toujours le comportement électrochimique du film de MnOx
A microbial fuel cell (MFC) is a device allowing the production of electric power from chemical energy thanks to the catalytic activity of bacteria in presence of organic fuel. These works aimed the synthesis of new anode and cathode materials which could be an alternative to platinum materials. On the anode side, we synthesized the materials by chemical precipitation on powder graphite from mixtures containing ferrous and sulfide ions. Physicochemical characterizations showed the formation of sulfur compounds (mackinawite, polysulfide and elementary sulfur) which transform into sulfur products more oxidized in presence of air. Formation of vivianite was confirmed in the case of an excess of ferrous ions in relation to sulfide ions. Electrochemical analysis shows that these materials have a reversible behavior with high current densities at low voltage. On the cathode side, we chose electrochemical synthesis of an MnOx film on stainless steel substrate. Physicochemical characterizations showed birnessite formation. Electrochemical analysis show that the reduction of this material Leeds to significative cathodic currents but with a limited reversibility, even in presence of air. The realization of MFC prototypes in which the sulfur compounds-based anode is submerged in compost solution and the MnOx-based cathode is in contact with air, allowed the getting of maximum instantaneous powers on the order of 12 W.m-3 and 1,8 W.m-2, and current densities on the order of 25 A.m-3 et 3,8 A.m-2. An optimization work of the MFC functioning has been done. So, the conductivity increase of the anodic solution and the decrease of sediment quantity in the compost solution allowed the improvement of the electrochemical response of the anodic material and to obtain maximal instantaneous powers on the order of 17,5 W.m-3 and 2,7 W.m-2, and current densities on the order of 60 A.m-3 et 9,2 A.m-2. The limiting factor remains the electrochemical behavior of the MnOx film

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Šmídek, Miroslav. "Kladná elektroda na bázi MnOx pro PEMFC." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219066.

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Construed bachelor work features into problems hydrogen fuel articles and survey on low-temperature fuell elements with polymeric electrolyte (PEMFC). Basic sight work is study feature catalyzers on base MnOx on real fuel cell type PEMFC. Exit are then measured characteristic this way creation fuel cell.

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Šubarda, Jiří. "Studium vlastností katalyzátoru na bázi MnOx metodou EQCM." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219069.

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Fuel cell´s have to function and be exploited for the purposes to dawdler were to be designed, behind achievement their requisite feature. To achievement these needs is then need use fit chemical accelerator about specific features and ensure his fit incorporated to the article. In those work in the concrete will treat of recognition feature chemical accelerator lay on in form inks obtained from powdery matters, like chemical accelerator will on used electrode aggradation MnOx. Recognition feature chemical accelerator will conducted by the help of method EQCM (Electrochemical Quartz Crystal Microbalance).

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Mehta, Sean. "Investigation of capacity fade in flat-plate rechargeable alkaline MnO₂/Zn cells." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/56584.

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The rechargeable alkaline manganese dioxide-zinc (RAM™) battery system has been difficult to commercially develop in the past due to irreversible phase formation and progressive and cumulative capacity fade. This system has many advantages however, such as low cost and environmentally sustainable materials, long shelf life, moderate energy density, and safety. A flat-plate architecture was developed and investigated in half and full-cell apparatuses with the goal of understanding and improving cumulative capacity fade in the electrolytic manganese dioxide (EMD) cathode. Two types of cathode current collectors (CCs) were developed, a thin film foil CC and an expanded metal mesh CC and used to assess the effect of various additives over 30+ cycles under various operating conditions. Conductive carbon black (Super C65) and graphite (KS44) additives were shown to improve cell performance at 15 wt. % KS44 graphite providing an electrically conductive network between adjacent EMD particles. In addition, other chemical additives (BaSO₄, Sr(OH)₂•8H₂O, Ca(OH)₂, and Bi₂O₃) were investigated at 5 wt. % with Bi₂O₃ providing a reproducible improvement over a control recipe. Mechanical stability of the cathode electrode and pressure application were significant causes of cell failure. Slow rates of discharge, and shallow depth of discharge (DOD) charge/discharge protocols reduced capacity fade by limiting electrochemically irreversible phase formation such as Mn₂O₃, Mn₃O₄, Zn₂MnO₄, and Mn(OH)₂. Analytical characterization techniques including Scanning Electron Microscopy/ Energy Dispersive X-Ray Spectroscopy (SEM/EDS), X-Ray Photoelectron Spectroscopy (XPS), Powder X-Ray Diffraction (XRD), and Potentiostatic Electrochemical Impedance Spectroscopy (PEIS) were used to provide supporting evidence indicating that the main causes of capacity fade are linked to the cathode electrode’s mechanical properties, increased cell resistance, and progressive and irreversible phase formation.
Applied Science, Faculty of
Chemical and Biological Engineering, Department of
Graduate

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Pléha, David. "Měření vlastností oxidů manganu (MnOx) metodou EQCM." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218701.

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The present work deals with the use of manganese oxide as a catalyst for positive electrode of fuel cells. The theoretical part is to analyze the problem of fuel cells, focusing on lowtemperature fuel cells. Are discussed and the methods of measurement and evaluation of properties of manganese oxide layer. The practical part deals with doping electrolytic manganese dioxide salts of divalent metals and monitoring their behavior in the cyclic voltammetry by the EQCM method.

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Kamrla, David. "Modifikace vlastností kladné elektrody na bázi MnOx pro AFC pomocí dopantů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219065.

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The subject of this graduation thesis is low-cost alkaline power cells and especially electrodes with alternative catalyst made of MnOx + dopant. The thesis expands the bachelor´s thesis [1] and previous research [4] [12] [13] [14]. Volt-ampere characteristics and power characteristics of the katodes for AFC, subsidized with various dopants, are the outcome of this project. The project presents the optimalisation of preparation process of AFC electrodes. The aim is to prepair several electrodes with identical construction, which varies only with the type of the dopant.

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Podal, Pavel. "Studium vlastností katalyzátoru na bázi MnOx s využitím RRDE." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219064.

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This master thesis deals with qualifications of the catalytic materials for positive electrode low-temperature fuel cells. The teoretical part focuses on the physical and chemical properties of low-temperature fuel cells. There are described methods of hydrodynamic RDE and RRDE. RRDE study utilizes methods linear and cyclic voltammetry for qualifying performance of catalytic materials and presentation of results. The practical part describes the preparation various types of carbon materials. There are monitored the oxygen reduction using RRDE. Catalytic materials are evaluated: CV, stability, kinetic parameters, creation of intermediate H2O2 and kinetics of electrode reactions.

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Kováč, Martin. "Katalyzátory pro kladnou elektrodu kyslíko-vodíkového palivového článku." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218699.

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Master's thesis deals with new methods of preparing catalytic materials for positive electrode of an oxygen-hydrogen fuel cell and the influence of potassium permanganate or doping agent molar mass change on theirs attributes. Further it studies the use of proper measuring methods designed to qualify theirs attributes and the presentation of achieved results. In particular methods of linear sweep and cyclic voltammetry and the processing of data using Koutecky-Levich and Tafel plot and wave log analysis. Values of half-wave and onset potential and kinetic coefficient have been measured and calculated.

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Chan, Kara Y. "MECHANISMS OF TRINUCLEOTIDE REPEAT INSTABILITY DURING DNA SYNTHESIS." UKnowledge, 2019. https://uknowledge.uky.edu/toxicology_etds/29.

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Genomic instability, in the form of gene mutations, insertions/deletions, and gene amplifications, is one of the hallmarks in many types of cancers and other inheritable genetic disorders. Trinucleotide repeat (TNR) disorders, such as Huntington’s disease (HD) and Myotonic dystrophy (DM) can be inherited and repeats may be extended through subsequent generations. However, it is not clear how the CAG repeats expand through generations in HD. Two possible repeat expansion mechanisms include: 1) polymerase mediated repeat extension; 2) persistent TNR hairpin structure formation persisting in the genome resulting in expansion after subsequent cell division. Recent in vitro studies suggested that a family A translesion polymerase, polymerase θ (Polθ), was able to synthesize DNA larger than the template DNA. Clinical and in vivo studies showed either overexpression or knock down of Polθ caused poor survival in breast cancer patients and genomic instability. However, the role of Polθ in TNR expansion remains unelucidated. Therefore, we hypothesize that Polθ can directly cause TNR expansion during DNA synthesis. The investigation of the functional properties of Polθ during DNA replication and TNR synthesis will provide insight for the mechanism of TNR expansion through generations.

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Частини книг з теми "MnO2 Cells"

Khomenko, Volodymyr, Encarnacion Raymundo-Piñero, and François Béguin. "HYBRID SUPERCAPACITORS BASED ON α-MnO2/CARBON NANOTUBES COMPOSITES." In New Carbon Based Materials for Electrochemical Energy Storage Systems: Batteries, Supercapacitors and Fuel Cells, 33–40. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/1-4020-4812-2_3.

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Coms, Frank D., Shulamith Schlick, and Marek Danilczuk. "Stabilization of Perfluorinated Membranes Using Ce3+and Mn2+Redox Scavengers." In The Chemistry of Membranes Used in Fuel Cells, 75–106. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119196082.ch4.

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Kurek, Bernard, Bonnie R. Hames, Christelle Lequart, Katia Ruel, Brigitte Pollet, Catherine Lapierre, François Gaudard, and Bernard Monties. "Cell Wall Degradation of Spruce, Poplar, and Wheat Straw by MnO2/Oxalate: An Overview." In ACS Symposium Series, 272–85. Washington, DC: American Chemical Society, 2001. http://dx.doi.org/10.1021/bk-2001-0785.ch016.

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Noori, Md T., M. M. Ghangrekar, A. Mitra, and C. K. Mukherjee. "Enhanced Power Generation in Microbial Fuel Cell Using MnO2-Catalyzed Cathode Treating Fish Market Wastewater." In Springer Proceedings in Energy, 285–94. New Delhi: Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-2773-1_21.

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Sato, Kazuyoshi, Akira Kondo, Hiroya Abe, Makio Naito, and Jintawat Chaichanawong. "A Mechanically Synthesized La0.8 Sr0.2 MnO3 Fine Powder for the Cathode Material of An Intermediate Temperature Solid Oxide Fuel Cell (IT-SOFC)." In Ceramic Transactions Series, 225–30. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118144145.ch35.

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Leyva, A. G., J. Curiale, H. Troiani, M. Rosenbusch, P. Levy, and R. D. Sánchez. "Nanoparticles of La_(1-x)Sr_xMnO₃ (x = 0.33, 0.20) Assembled into Hollow Nanostructures for Solid Oxide Fuel Cells." In Advances in Science and Technology, 54–59. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/3-908158-07-9.54.

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Bousia, Alexandra. "Energy Efficient Resource Allocation Scheme via Auction-Based Offloading in Next-Generation Heterogeneous Networks." In Advances in Wireless Technologies and Telecommunication, 167–89. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-2023-8.ch008.

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The focus of this chapter is centered on the network underutilization during low traffic periods (e.g., night zone), which enables the Mobile Network Operators (MNOs) to save energy by having their traffic served by third-party Small Cells (SCs), thus being able to switch off their Base Stations(BSs). In this chapter, a novel market approach is proposed to foster the opportunistic utilization of unexploited SCs capacity, where the MNOs lease the resources of third-party SCs and deactivate their BSs. Motivated by the conflicting interests of the MNOs and the restricted capacity of the SCs, we introduce a combinatorial auction framework. A multiobjective framework is formulated and a greedy auction algorithm is given to provide an energy efficient solution for the resource allocation problem within polynomial time. In addition, an extensive mathematical analysis is given for the calculation of the SCs cost, which is useful in the market framework. Finally, extended experimental results to estimate the potential energy and cost savings are provided.

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Rafiee, Farnaz. "Alginate: Wastewater Treatment." In Alginate - Applications and Future Perspectives [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.110148.

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Human activities have led to the entry of various pollutants into rivers, seas, and oceans. Various methods are used to remove pollution, one of them is using biopolymers including alginate obtained from brown algae. Due to their special structure and physical properties, availability, biocompatibility, and biodegradability, they can be considered adsorption materials. Alginate hydrogel, composite, and nanocomposite could eliminate methyl violet dye and heavy metals, such as Pb2+, Cd2+, Sr2+, Cu2+, Zn2+, Ni2+, Mn2+, Li2+, and Pb2+. The immobilized microalgal cells in alginate exhibited higher removal efficiency of pollutants from the wastewater as compared to the suspended free cells of microalgal culture and alginate alone. The immobilization of the microalgal cells using alginate could eliminate palm oil, ammonium, phosphate, etc. More research needs to be done but according to researchers, alginate can be a safe substance to remove pollutants from the environment.

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Martin, J. M. Coco, C. A. M. van der Velden-de Groot, R. C. Dorresteijn, F. Brunink, and E. C. Beuvery. "MONITORING AND CONTROL OF HYBRIDOMA CELL LINE MN12 IN A CONTINUOUS PERFUSION CULTURE SYSTEM." In Animal Cell Technology, 308–11. Elsevier, 1992. http://dx.doi.org/10.1016/b978-0-7506-0421-5.50077-5.

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Kumari Arodhiya, Sharmila, Jaspreet Kocher, Jiri Pechousek, Shashank Priya, Ashok Kumar, and Shyam Sundar Pattnaik. "Understanding Synthesis and Characterization of Oxide Semiconductor Nanostructures through the Example of Nanostructured Nickel Doped Hematite." In Synthesis and Applications of Semiconductor Nanostructures, 182–201. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815080117123040013.

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Hematite is an n-type semiconductor, and its semiconducting properties can further be improved by nano-structuring and doping. In several optoelectronic devices, such as thermoelectric and solar cells, both n- and p-type semiconductors are required. The p-type hematite can be synthesized by doping cations, such as Ni2+, Mg2+, Cu2+, and Mn2+. Furthermore, hematite is a weak ferromagnetic material, and its magnetic properties vary with the size of nanoparticles, doping of cations as well as doping concentration. This chapter discusses various properties of nanostructured nickel-doped hematite. As nickel is a ferromagnetic divalent dopant with a high magnetic moment, its doping in hematite together with nano-structuring shows a large variation in both electrical and magnetic properties in nickel.

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Тези доповідей конференцій з теми "MnO2 Cells"

You, Huihui, Jingyun Zhao, Lingling Li, and Junlin Yuan. "Notice of Retraction: Effects of MnO2 Nanoparticles on Liver and Kidney Cells of Rats." In 2011 5th International Conference on Bioinformatics and Biomedical Engineering. IEEE, 2011. http://dx.doi.org/10.1109/icbbe.2011.5781408.

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Phuakkhaw, Duangkamon, Atchana Wongchaisuwat, Siree Tangbunsuk, and Pinsuda Viravathana. "Preparation and characterization of manganese dioxide (MnO2) as a cathode catalyst for direct methanol fuel cells." In The 2016 International Conference on Applied Engineering, Materials and Mechanics (ICAEMM 2016). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813146587_0008.

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Monterrubio-Badillo, C., H. Ageorges, T. Chartier, J. F. Coudert, and P. Fauchais. "Chemical Composition Optimization of Perovskite Coatings by Suspension Plasma Spraying for SOFC Cathodes." In ITSC2004, edited by Basil R. Marple and Christian Moreau. ASM International, 2004. http://dx.doi.org/10.31399/asm.cp.itsc2004p0562.

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Abstract The purpose of this work is to optimise the chemical composition of perovskite coatings prepared by injecting a suspension of submicrometric LaMnO3 perovskite particles (d50 =~ 1 µm) in a direct current (d.c.) plasma jet. The perovskite powder composition, the particle size and the plasma parameters were modified in order to diminish the manganese evaporation. The process consists in mechanically injecting a well dispersed stable suspension of submicrometric perovskite particles in a dc plasma jet. In the process, large suspension droplets (~300 µm) are sheared into tiny ones (a few µm) by the plasma jet flow. Then the solvent is evaporated and the particles melt resulting in perovskite droplets of about 1 µm impacting on the substrate, the coating resulting from their layering. Such coatings are to be used as cathodes for the SOFCs (Solid Oxide Fuel Cells). Best results were obtained by injecting a stable suspension containing a 10 mol% MnO2 doped perovskite powder with 3 µm particle size in an Ar plasma forming gas and 300 A of current intensity.

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Ramalingam, K. J., and S. R. Srither. "Nano Mg/MnO2-graphene storage cell for enhanced performance." In 2013 International Conference on Power, Energy and Control (ICPEC). IEEE, 2013. http://dx.doi.org/10.1109/icpec.2013.6527762.

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Zhang, Cun-xiang, Jian-jun Sun, and Shu-zhong Lin. "Reliability analysis and improvement for Li / MnO2 cell production line based on Fault Tree Analysis." In EM 2011). IEEE, 2011. http://dx.doi.org/10.1109/icieem.2011.6035355.

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François, V., X. Guan, and S. L. Chin. "Powerful, femtosecond tunable dye oscillator-amplifier chain." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.mnn2.

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We have developed a powerful, femtosecond pulse amplification chain to study high-intensity laser-matter interactions. The linear-cavity oscillator (Quantronics 4500) is synchronously pumped by a frequency-doubled Nd:YAG laser (Quantronics 416). An R6G jet acts as the gain medium, and a saturable absorber jet mode-locks the pulses. The group-velocity dispersion is compensated for by a series of four quartz prisms, with a slit between the two central prisms that permits selection of the lasing wavelength. Thus, the main characteristic of this laser is that pulses can be tuned over a range of 565-620 nm with a pulse duration between ~1 ps and ~100 fs. The amplifiers are a series of four Bethune cells transversely pumped by a frequency-doubled Q-switched Nd: YAG laser (Lumonics YP1200). The amplified spontaneous emission is filtered by a series of pinholes and saturable-absorber jets to preferentially amplify the femtosecond pulses and to improve the contrast ratio and beam quality. At 575 nm the net amplification factor is 107, and 2 mJ subpicosecond pulses are produced at a repetition rate of 10 Hz, providing an intensity of 1017 W/cm2 per pulse at best focus.

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Reeve, C. D., and J. F. Wombwell. "Effect of input modulation on the output of an acoustooptic correlator." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.mn2.

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A novel twin Bragg cell, space-integrating correlator is described, in which the spatial integration is achieved by summing the light intensity on a photodiode. It is found that the nature of the output depends on the type of amplitude modulation used to apply the signals to the Bragg cell carrier frequency. With suppressed carrier modulation the correlation of the squares of the input signals is obtained but when large carrier modulation is used the true correlation of the signals may be obtained by high pass filtering the detector output. It is shown that the phase of the correlation function is preserved.

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Shuzhong, Lin, Chen Xiaoming, and Sun Huilai. "Research on 3D Online Simulation System for Li/MnO2 Coin Cell Production Line Based on Virtual Reality." In 2010 Second International Conference on Computer Modeling and Simulation (ICCMS). IEEE, 2010. http://dx.doi.org/10.1109/iccms.2010.286.

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Chen, Xiaoming, and Shuzhong Lin. "Research on 3D Interactive Simulation System for Li/MnO2 Coin Cell Production Line Based on Virtual Reality." In 2009 International Conference on Measuring Technology and Mechatronics Automation. IEEE, 2009. http://dx.doi.org/10.1109/icmtma.2009.124.

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Xu, J., X. M. Lu, and Q. H. Lou. "Parametric study of refractory metal films by laser-induced deposition." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.tuy10.

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Thin films of W and Mn on quartz and Pyrex substrates were deposited by photodissociation of respective carbonyls W(CO)6 and Mn2(CO)10 with a XeCl laser at 308 nm. The UV laser beam at 10 Hz was focused into a Pyrex cell containing carbonyl gas and was perpendicularly incident on a quartz or Pyrex substrate.

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