Academic literature on the topic 'Electrochemistry Periodicals Use studies'
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Journal articles on the topic "Electrochemistry Periodicals Use studies"
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Jensz, Felicity, and Hanna Acke. "The Form and Function of Nineteenth-Century Missionary Periodicals: Introduction." Church History 82, no. 2 (May 20, 2013): 368–73. http://dx.doi.org/10.1017/s0009640713000036.
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At the 1860 conference on Protestant missions held in Liverpool, a session was dedicated to the use of the reported 200,000 monthly missionary periodicals produced by various societies for encouraging the home support of missionary work. The 125 delegates from more than twenty-five Protestant missionary societies both in Britain and abroad had divergent opinions on the prospective contents and audiences for missionary periodicals. One thing that they did agree upon, however, was their necessity. The Reverend Thomas Green from the Church Missionary Society noted that missionary periodicals provided a means of “influencing” the minds of readers in order to excite the missionary spirit among the home community. The high circulation of missionary periodicals was, according to the Secretary of the Baptist Missionary Society, Reverend Frederick Trestrail, an indication that they provided a source of information that was received willingly and consumed by the masses.
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Eşanu, Octavian, and Angela Harutyunyan. "Introduction: Art Periodicals Today, Historically Considered." ARTMargins 5, no. 3 (October 2016): 3–10. http://dx.doi.org/10.1162/artm_e_00155.
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The Introduction to the Special Issue entitled Art Periodicals, Historically Considered sketches an outline of the advent of periodicals in the context of the Enlightenment demand for the public use of reason, and situates the emergence of art periodicals in the context of the advent of autonomous art since the 19th century. The article introduces the contributions to the Special Issue and opens up a way to reposition the question of critique in today's art publishing.
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Park, Jun-Young, Sungyong Choi, and Sung Ryul Choi. "Mitigation of Performance Degradation of Cathodes for Polymer Electrolyte Membrane Fuel Cells." ECS Meeting Abstracts MA2022-02, no. 64 (October 9, 2022): 2371. http://dx.doi.org/10.1149/ma2022-02642371mtgabs.
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Polymer electrolyte membrane fuel cells (PEMFCs) are green energy conversion devices that convert chemical energy to electrical energy. Compared to other types of fuel cells, PEMFCs have various advantages including the low operating temperature, high power density, and short start-up times [1, 2]. However, the limited durability and high cost of platinum catalysts are the primary obstacles to the large scale commercialization of PEMFCs. Hence, a variety of scientific approaches have tried to improve the durability of Pt electrocatalysts as a main component of PEMFC membrane electrode assemblies (MEAs) [3]. Studies reported that the performance degradation of the catalyst layer in MEAs can be divided into the reversible and irreversible degradation processes. The first case is the permanent degradations caused by the platinum dissolution or corrosion of carbon support. It is well known results in PMEFC MEAs that carbon corrosion mainly occurs at operating conditions of higher than 1.0 V, whereas platinum agglomeration/dissolution happen at 0.6‒1.0 V. That is, the deterioration of platinum in the cathode is unavoidable under general PEMFC operating conditions of 0.6‒1.0 V [4, 5]. Numerous studies, such as tuning of platinum alloy composition and use of highly durable Pt-alloy catalysts have been conducted to suppress irreversible performance degradation [6-8]. In the reversible degradation phenomena, oxygen or hydroxyl groups are bonded to platinum in the cathode, which interferes with oxygen reduction reactions and reduces performance. However, even reversible degradation can result in permanent performance decay if not removed for a long time. Hence, researches on the strategies to mitigate reversible degradation are necessary to extend the lifetime of PEMFC MEAs. In particular, Pt-O film generated during operation is reversible and can be easily recovered by the periodical reduction of cathode potential [9, 10]. In this research, we develop the mitigation method to prevent performance degradation of MEAs during constant current operation. In addition, we quantitatively analyze the mitigation mechanism of MEAs via various physicochemical and electrochemical analysis tools. References [1] L. J. M. J. Blomen, M. N. Mugerwa, "Fuel Cell Systems", Plenum Press, New York, 1993. [2] K. Kordesch, G. Simader, "Fuel Cells and Their Applications", VCH, Weinheim, Germany, 1996. [3] R. L. Borup, A. Kusoglu, K. C. Neyerlin, R. Mukundan, R. K. Ahluwalia, D. A. Cullen , Current Opinion in Electrochemistry 21 (2020) 192-200. [4] E. Guilminot, A. Corcella, F. Charlot, F. Maillard, M. Chatenet, Journal of the Electrochemical Society 154 (2006) B96. [5] P. Schneider, C. Sadeler, A.-C. Scherzer, N. Zamel, D. Gerteisen, Journal of the Electrochemical Society 166 (2019) F322-F333. [6] N. Linse, G. G. Scherer, A. Wokaun, L. Gubler, Journal of Power Sources 219 (2012) 240-248. [7] A. Ganesan, M. Narayanasamy, Materials for Renewable and Sustainable Energy 18 (2019) 1-14. [8] M. Khorshidian, M. Sedighi, Iranian Journal of Hydrogen & Fuel Cell 6 (2019) 91-115. [9] X. Zhang, L. Guo, H. Liu, Journal of Power Sources 296 (2015) 327-334. [10] M. Zago, A. Baricci, A. Bisello, T. Jahnke, H. Yu, R. Maric, P. Zelenay, A. Casalegno, Journal of Power Sources 455 (2020) 227990. Keywords: Polymer electrolyte membrane fuel cell, Pt-O layer, Water management, Oxide stripping *Corresponding author: jyoung@sejong.ac.kr (J. Y. Park)
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Aldoshin, S. M. "Scientific school “Use of Impedancemetry in Electrochemical Studies”." Russian Journal of Electrochemistry 44, no. 5 (May 2008): 615. http://dx.doi.org/10.1134/s1023193508050182.
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Aldoshin, S. M., and B. M. Grafov. "2nd Workshop “The Use of Impedancemetry in Electrochemical Studies”." Russian Journal of Electrochemistry 45, no. 5 (May 2009): 618. http://dx.doi.org/10.1134/s1023193509050243.
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Lovett, Dustin. "The politics of translation in the press." Translation and/in Periodical Publications 14, no. 2 (June 26, 2019): 265–82. http://dx.doi.org/10.1075/tis.00041.lov.
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Abstract Translations and translation reviews played a major part in furthering the political program of leftwing periodicals in Weimar Germany. However, this remains a relative blind spot in media studies of the period. By exploring the use of translations and their review for political ends in three major Weimar cultural periodicals and undertaking a specific examination of Siegfried Kracauer’s translation reviews, this article illustrates the ways in which both translations and their reviews were employed, directly and indirectly, as instruments of political polemic and ideological mediation.
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Konev, Kirill A., and Veronika R. Zhuravleva. "PERIODICALS OF THE CIVIL WAR PERIOD (1917–1920) IN THE FUND OF THE RESEARCH LIBRARY OF TSU: PRESERVATION AND RESTORATION AS A FACTOR IN THE DEVELOPMENT OF SIBERIAN STUDIES." Vestnik Tomskogo gosudarstvennogo universiteta. Kul'turologiya i iskusstvovedenie, no. 40 (2020): 293–304. http://dx.doi.org/10.17223/22220836/40/27.
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The Research Library of TSU has an extensive collection of periodicals – newspapers and magazines, published in the east of Russia during the revolution and the Civil War. The periodicals of the revolutionary era are a valuable source for humanities researchers due to the uniqueness of the material, which they contain. The demand for periodicals and their importance as a source actualize the problems of preservation and accessibility of these sources for researchers. The purpose of this publication is to present the experience of the Research Library of TSU, accumulated during conservation and restoration of Siberian and Far Eastern periodicals published in the first quarter of the 20th century. Besides that, it’s particularly important to assess its significance in the inclusion’s context of the source types in Siberian interdisciplinary research. The sources for the study were the periodicals of the 1917–1920s, stored in the Research Library of TSU, as well as scientific literature devoted to the problems of preservation and restoration of library funds. The working hypothesis of this paper is the statement that preservation and restoration can be one of the important stages in the research of unique library collections and during the creation of scientific electronic resources. The authors consider a number of factors affecting the preservation and organization of researchers’ work with this type of source. These factors include: material characteristics and print quality of the sources; historically changing storage conditions; nature and intensity of use; features of the restoration work and the materials used in this. Consideration of these factors led to the following conclusions. Firstly, the preservation and restoration of periodicals is not just a condition for conducting research. It’s important part of the research that gives to reconstruct the circumstances of its origin and use. Secondly, obtaining information about the existence contexts of the source can be useful when carrying out restoration measures, which can preserve its original appearance. Finally, digitization and further work with documents in electronic environment is impossible without ensuring safety. Thus, ensuring the preservation and restoration of Siberian and Far Eastern publications of the Civil War period is an important condition for the implementation of Siberian studies, including in the digital environment. It’s especially important when scientists have limited access to sources for one reason or another.
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Peresada, Vitaliy. "The Role of the Party Press in the Electoral Process and Political Communication (Based on the Example of the 2012 Parliamentary Campaign)." Scientific notes of the Institute of Journalism, no. 2 (75) (2019): 110–21. http://dx.doi.org/10.17721/2522-1272.2019.75.8.
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The article studies the role of party press in the electoral process and political communication based on the example of the elections toVerkhovna Rada of Ukraine in 2012. The classical party and short-term party periodicals are analyzed according to thematic orientation, content of publications, political and ideological bias. In particular, such official print periodicals of the leading political organizations as Communist, Svoboda/Liberty, Vseukrainski Visti/All-Ukrainian News and the party short-term periodicals distributed during the 2012 parliamentary campaign, were examined. The analysis of the party’s legal press and illegal press during the parliamentary election campaign is caused by a sharp increase of its circulation and titles, as well as by the renewed interest of a wide spectrum of recipients and future voters. Methods. The following general scientific research methods were used in the article: 1. Method of abstraction, which made it possible to determine the main categories of scientific work of mass communication direction: party periodicals, hidden party press, election periodicals, etc. The modeling method by which the role of party press in the election campaign was highlighted, which stipulated the influence on the voter’s final will. The method of analysis that provided a systematic study of the functional purpose of party periodicals in the election campaign. The method of induction and deduction, which contributed to a clearer definition of the party press role in information support of the election campaign. The study also used a comparison method. Results and conclusions. The study ascertained that in the 2012 election campaign, the party periodicals played a prominent role, which, however, was far from clear. Most of participants of the electoral process underestimated or neglected the importance of official party print media, focusing on the publications of alternative, cheap and primitive products (special issues, newsletters, etc.). Due to its bias, the party periodicals could not give the voters an objective idea of of electoral process and intra-party tendencies, all the more to form their conscious choices. The electoral practice of party periodicals showed mass inadequacy in solving typical propaganda tasks (declarativism, populism, meeting rhetoric, emphasis on supplementary aspects, etc.). The wide spread practice of the 2012 election campaign was the use of unethical methods of cross-party competition (“jeans” and “smearpiece”) as well as the use of semi-legal and illegal publications for public opinion’ provocations and manipulations.
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Pungor, Ernö, Ference Pál, István Slezsák, and Andrea Hrabéczy. "Conductance studies with use of an oscillometric detector." Electroanalysis 4, no. 6 (June 1992): 629–34. http://dx.doi.org/10.1002/elan.1140040605.
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West, Emma. "Strange Objects: Surface Reading Popular Art Periodicals." Journal of Modern Periodical Studies 13, no. 1 (June 1, 2022): 142–80. http://dx.doi.org/10.5325/jmodeperistud.13.1.0142.
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ABSTRACT Drawing on a private collection of popular British art periodicals from the 1920s to the 1950s, loaned to me during the COVID-19 pandemic, this article explores different ways of reading these magazines’ visual and verbal contents. It takes the unique circumstances of the pandemic—inability to travel, or to access libraries and archives—and asks what we can learn from reading such magazines in isolation. Designed as an “experiment,” it foregrounds acts of questioning and of description, placing an emphasis on curiosity and open-ended enquiry. Inspired by Sharon Marcus and Stephen Best’s ideas around “surface reading,” I use the collection to develop a taxonomy of image-text interactions in art periodicals such as The Studio, Colour, Drawing and Design, The Art Gallery, and Modern Masterpieces. To examine how these interactions worked in practice, I focus on The Artist (1931–present). Using creative-critical approaches, including my own practice as a watercolorist, I examine how didactic pairings of words and images helped to teach an amateur audience how to create their own art. Throughout, I seek not just to introduce readers to a new set of magazines, but to question what modes of enquiry and forms of expression constitute “proper knowledge” in periodical studies.
Dissertations / Theses on the topic "Electrochemistry Periodicals Use studies"
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Peper, Michael T. "The Effect of Remote Storage on the Use of Books." Thesis, School of Information and Library Science, 2008. http://hdl.handle.net/1901/480.
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Remote storage has become an increasingly popular response to the overcrowding of open-stack areas in academic libraries. While many institutions have chosen this option and there has been much discussion about administration of such facilities, its impact on patrons is still unclear. Some potential user limitations of remote storage considered by this study are delayed retrieval, loss of browsability, and the barrier of making a retrieval request. The current study was conducted at the Chemistry and Art Libraries at the University of North Carolina at Chapel Hill. It observed the use of materials that had been selected for transfer to remote storage, where half of these selected materials were transferred to remote storage and the other half remained on open library stacks. After an average of approximately two months of observation, none of the selected books had circulated, suggesting that their selection for remote storage was appropriate.
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Loree, S. "Is Citation Analysis Worth It: A Comparison of the Usefulness of Local Citation Analysis, Interlibrary Loan Records and Usage Statistics for Collection Development Purposes in a Special Library." Thesis, School of Information and Library Science, 2007. http://hdl.handle.net/1901/369.
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This study evaluates local citation analysis in comparison to interlibrary loan records and usage statistics as indicators for collection evaluation and development purposes in a special library setting as evidenced through a case study at the Environmental Protection Agency’s Main Library in Research Triangle Park, North Carolina. More specifically, it examines how data gathered from these three tools compare as predictors for future trends in use of journals and as tools for developing parameters and guidelines for anticipatory collection development decisions in a scientific research library. Ultimately, citation analysis is the most successful in predicting the following year’s usage.
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Huffman, Holly D. "Organizational publications editors : their use of information subsidies and agenda setting." Virtual Press, 1999. http://liblink.bsu.edu/uhtbin/catkey/1136713.
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This study was designed to identify correlates of success in Supported Employment(SE) programs for persons with psychiatric disabilities. Indiana policy-makers are seriously considering a managed care, or "capitated," system of payment to make SE provider programs more efficient economically. However, many agencies are concerned about providing services to more severely impaired individuals because of the potentially higher costs of serving these individuals. Two studies are included in this project. The goals of the first study were to identify SE consumer (clinical) characteristics that predict (1) successful outcomes, defined as whether the consumer achieves gainful work, and (2) program costs, defined as the amounts of SE service hours utilized by consumers who obtain work. In two large samples of SE consumers with serious mental illness, no clinical characteristics (e.g., diagnosis, rated functioning, hospitalization history) were associated with vocational outcome or service costs. The goal of the second study was to describe the types and amounts of services utilized by SE consumers who obtain work. Specific service categories associated with obtaining work were travel, training, and advocacy that was unrelated to the consumer's job. The implications of these findings are discussed in the framework of the debate over clinical versus empirical prediction. The need for a theoretical model of SE services that allows the use of predictive clinical and consumer driven services is also discussed.Department of Journalism
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Villa, Monica Irais 1982. "The synthesis of novel conducting polymers and oligomers for use in electrical devices, drug delivery systems, and energy dynamics studies." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-05-937.
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Described herein are three projects centered on the synthesis of conducting polymer derivatives for various applications. The first is the novel synthesis of 9,9-dioctylfluorene-co-benzothiadiazole [F8BT] oligomers through solid phase synthesis for the study of the thermodynamics and kinetics of electron transfer in the polymer. The second endeavor involves the synthesis of a series of 4”,3’’’-dialkyl-2,2’:5’,2”:5”,2’’’:5’’’,2’’’’:5’’’’,2’’’’’-sexithiophenes for the studies on crystal packing and surface deposition of organic p-type semiconducting materials. Lastly is described the development of a conducting metallopolymer based on the ligand 2,6-Bis(4-(2,2’-bithiophen-5-yl)-1H-pyrazol-1-yl)pyridine for use in a drug delivery system.text
Books on the topic "Electrochemistry Periodicals Use studies"
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Alemna, Anaba A. African journals: An evaluation of the use made of African-published journals in African universities. London: Department for International Development, 1999.
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Sabine, Patricia. How people use books and journals: A report to Dr. Frederick G. Kilgour. [S.l: s.n., 1985.
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Gold studies & uses in science & health: Subject analysis with reference bibliography. Washington, D.C: ABBE Publishers Association, 1987.
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Whisler, John A. Periodicals circulation statistics at a mid-sized academic library: Implications for collection management. New York: Haworth Press, 1989.
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Woodward, Hazel M. Café Jus: Commercial and Free Electronic Journals User Study. Boston Spa: British Library Research and Innovation Centre, 1997.
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Ernst, Christine. Journal use at Moorgate Library. London: LLRS Publications, City of London Polytechnic, 1986.
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Ernst, Christine. Journal use at Moorgate library. London: LLRS Publications, City of London Polytechnic, 1986.
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Neil, Ferguson. Journal use at Central House Library. London: LLRS Publications, City of London Polytechnic, 1986.
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Lor, P. J. Die vraag na tydskrifartikels uit die buiteland: Verslag oor die ondersoek na tydskrifte waaruit in 1982 uit die buiteland fotokopieë aangevra is. Pretoria: Staatsbiblioteek, 1986.
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Reuter, Peter. Fernleihbestellungen von Zeitschriftenaufsätzen: Benutzererwartungen an Kosten, Erledigungsdauer und Qualität der kostenpflichtigen Dokumentlieferung. Berlin: Deutsches Bibliotheksinstitut, 1996.
Find full textBook chapters on the topic "Electrochemistry Periodicals Use studies"
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Fonseca, A. M., M. A. Queirós, and A. R. Dias. "The use of Microelecrodes in Kinetic Studies of Homogeneous Chemical Reactions of Molybdenum Complexes." In Molecular Electrochemistry of Inorganic, Bioinorganic and Organometallic Compounds, 649–52. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1628-2_60.
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Schmickler, Wolfgang. "Adsorption on metal electrodes." In Interfacial Electrochemistry. Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195089325.003.0009.
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Whenever the concentration of a species at the interface is greater than can be accounted for by electrostatic interactions, we speak of specific adsorption. It is usually caused by chemical interactions between the adsorbate and the electrode, and is then denoted as chemisorption. In some cases adsorption is caused by weaker interactions such as van der Waals forces; we then speak of physisorption. Of course, the solvent is always present at the interface; so the interaction of a species with the electrode has to be greater than that of the solvent if it is to be adsorbed on the electrode surface. Adsorption involves a partial desolvation. Cations tend to have a firmer solvation sheath than anions, and are therefore less likely to be adsorbed. The amount of adsorbed species is usually given in terms of the coverage θ, which is the fraction of the electrode surface covered with the adsorbate. When the adsorbate can form a complete monolayer, θ equals the ratio of the amount of adsorbate present to the maximum amount that can be adsorbed. In a few systems the area covered by a single adsorbed molecule changes with coverage; for example, some organic molecules lie flat at low coverage and stand up at higher coverages. In this case one must specify to which situation the coverage refers. Another definition of the coverage, often used in surface science, is the following: θ is the ratio of the number of adsorbed species to the number of surface atoms of the substrate. Fortunately, most authors state which definition they use. The chemisorption of species occurs at specific sites on the electrode, for example on top of certain atoms, or in the bridge position between two atoms. Therefore, most adsorption studies are performed on well-defined surfaces, which means either on the surface of a liquid electrode or on a particular surface plane of a single crystal. Only fairly recently have electrochemists learned to prepare clean single crystal electrode surfaces, and much of the older work was done on mercury or on amalgams.
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Marquez, Olga, and Jairo Márquez P. "Synthesis of Electrocatalysts for Electrochemistry in Energy." In Advanced Solid Catalysts for Renewable Energy Production, 300–385. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3903-2.ch011.
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The increasing population demands clean and green energy, encouraging scientists and technologists to make their best effort to develop renewable, available, and low-cost acquisition of non-conventional energy. Researchers in Catalysis and Electrochemistry, working together, have reached good achievements when focused in electrochemistry studies that are under development for alternative, renewable, capture, conversion, storage, supply, uses, and applications of energy. This is called Electrochemistry in energy. The symbiosis Electrochemistry-Catalysis is fundamental in this field for successful results. Important achievements are nowadays found in literature and some of them are reported here with emphasis in the use of electrochemistry for electrosynthesis of the named photoelectrocatalysts. Thus, photoelectrocatalysts, photocatalysts, and catalysts are of importance in many of the aspects involved in the term Electrochemistry in energy. This is such a wide field, with many aspects presented here, that the authors give an appropriate view and pedagogical standpoint for the readers.
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"Advancing an Ecosystem Approach in the Gulf of Maine." In Advancing an Ecosystem Approach in the Gulf of Maine, edited by Michael J. Chiarappa. American Fisheries Society, 2012. http://dx.doi.org/10.47886/9781934874301.ch18.
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<i>Abstract</i> .—The advent of modern fisheries research during the second half of the 19th century was striking in its historical and ethnographic orientation, a precedent set by such pioneering work as George Perkins Marsh’s <i>Man and Nature </i> and the collective labor of the U.S. Fish Commission and certain state fish commissions that followed its lead. This approach served to provide more than limited context or introductory remarks for scientific studies but, with compelling clarity, took seriously the historical and cultural experiences of fishing communities in an effort to structure wide public discourse on the pressing concerns confronting the use of fisheries resources. Hoping to employ knowledge of fisheries history and occupational culture in the service of publicly engaged, progressive policy and management, these investigations reached audiences not just through government reports, but also through popular periodicals and fisheries exhibitions. Today, the work of environmental and cultural history—in conjunction with their vital interdisciplinary links to oral history, anthropology, geography, field documentation, and museology—is revitalizing this tradition and establishing important patterns in how fisheries issues are communicated and deliberated in society. Similar to earlier periods, the implications of these contemporary initiatives are important for those stakeholders wishing to participate in the public culture that frames current fisheries life.
Conference papers on the topic "Electrochemistry Periodicals Use studies"
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Carnes, Brian, Ken S. Chen, Fangming Jiang, Gang Luo, and Chao-Yang Wang. "Systematic Parameter Estimation and Sensitivity Analysis Using a Multidimensional PEMFC Model Coupled With DAKOTA." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33038.
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Current computational models for proton exchange membrane fuel cells (PEMFCs) include a large number of parameters such as boundary conditions, material properties, and numerous parameters used in sub-models for membrane transport, two-phase flow and electrochemistry. In order to successfully use a computational PEMFC model in design and optimization, it is important to identify critical parameters under a wide variety of operating conditions, such as relative humidity, current load, temperature, etc. Moreover, when experimental data is available in the form of polarization curves or local distribution of current and reactant/product species (e.g., O2, H2O concentrations), critical parameters can be estimated in order to enable the model to better fit the data. Sensitivity analysis and parameter estimation are typically performed using manual adjustment of parameters, which is also common in parameter studies. We present work to demonstrate a systematic approach based on using a widely available toolkit developed at Sandia called DAKOTA that supports many kinds of design studies, such as sensitivity analysis as well as optimization and uncertainty quantification. In the present work, we couple a multidimensional PEMFC model (which is being developed, tested and later validated in a joint effort by a team from Penn State Univ. and Sandia National Laboratories) with DAKOTA through the mapping of model parameters to system responses. Using this interface, we demonstrate the efficiency of performing simple parameter studies as well as identifying critical parameters using sensitivity analysis. Finally, we show examples of optimization and parameter estimation using the automated capability in DAKOTA.
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Mazumder, S. K., R. Burra, K. Acharya, M. R. von Spakovsky, D. Nelson, D. Rancruel, C. Haynes, and R. Williams. "Development of a Comprehensive Simulation Platform to Investigate System Interactions Among Solid-Oxide Fuel Cell, Power-Conditioning Systems, and Application Loads." In ASME 2003 1st International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2003. http://dx.doi.org/10.1115/fuelcell2003-1706.
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SOFC stacks respond quickly to changes in load and exhibit high part- and full-load efficiencies (due to rapid electrochemistry), which is not true for the balance of plant (BOP), where load-following time constants are several orders of magnitude higher. This dichotomy diminishes the reliability and performance of the electrode with increasing demand of load. Because these unwanted phenomena are not well understood, the manufacturers of SOFC use conservative schemes to control stack responses to load variations, which limit the applicability of SOFC systems from a cost standpoint. Thus, a need exists for the synthesis of component- and system-level models of SOFC power-conditioning systems and the development of methodologies for investigating the system-interaction issues (which reduce the lifetime and efficiency of a SOFC) and optimizing the responses of each subsystem. Equally important are “multiresolution” finite-element modeling and simulation studies that can predict the impact of changes in system-level variables (e.g., current ripple and load-transients) on the local current densities, voltages, and temperature (these parameters are very difficult or cumbersome, if not impossible to obtain) within a SOFC cell. Towards that end, this paper presents a design methodology (with illustrations) for a simulation tool that will enable comprehensive analyses of above (critical) issues.
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Fhaner, Matthew. "Implementation of Green Solvents to Monitor Thermal Oxidation of Common Frying Oils." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/hvza2523.
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Developing simple, fast, and user-friendly methods for monitoring frying oil oxidation has resulted in novel advances in recent years. Current instrumentation and methodologies in this field offer various benefits, but there are few truly quantitative methods for assessing frying oil quality. One analytical method that continues to garner attention is electrochemistry. One of the reasons is the direct quantitative relationship between analytical signal and sample concentration. The direct stoichiometric relationship between electrons and an analyte undergoing reduction or oxidation is a predictable relationship between measured charge (Coulombs) and mols of analyte. To this extent, our group has focused on investigating the use of electrochemical methods for the assessment of antioxidant and lipid degradation. Following two of the twelve principles of green chemistry, our group identified less hazardous solvent systems for the analysis of antioxidants. After identifying potential solvent candidates, our efforts have shifted to evaluating green solvents for the analysis of lipids. Our advancements in solvent options yield the potential for transferring our methods to industry settings such as restaurants and food manufactures with minimal safety risks to the user. Current research utilizes square-wave voltammetry to monitor fatty acid degradation in vegetable, canola, peanut, and safflower oils. In this presentation, voltametric signals (oxidation peak currents, fatty acid–oxidation peak identification, and figures of merit) will be compared against complimentary analytical techniques such as FAME analysis via GC-MS and peroxide value analysis. Preliminary results verify previously reported studies that demonstrate common frying oils produce unique voltametric traces that can be used for qualitative analysis in addition to oxidation peak currents varying with oil concentration and thermal exposure respectively.
Reports on the topic "Electrochemistry Periodicals Use studies"
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Chornodon, Myroslava. FEAUTURES OF GENDER IN MODERN MASS MEDIA. Ivan Franko National University of Lviv, February 2021. http://dx.doi.org/10.30970/vjo.2021.49.11064.
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The article clarifies of gender identity stereotypes in modern media. The main gender stereotypes covered in modern mass media are analyzed and refuted. The model of gender relations in the media is reflected mainly in the stereotypical images of men and woman. The features of the use of gender concepts in modern periodicals for women and men were determined. The most frequently used derivatives of these macroconcepts were identified and analyzed in detail. It has been found that publications for women and men are full of various gender concepts that are used in different contexts. Ingeneral, theanalysisofthe concept-maximums and concept-minimum gender and their characteristics is carried out in the context of gender stereotypes that have been forme dand function in the society, system atizing the a ctual presentations. The study of the gender concept is relevant because it reveals new trends and features of modern gender images. Taking into account the special features of gender-labeled periodicals in general and the practical absence of comprehensive scientific studies of the gender concept in particular, there is a need to supplement Ukrainian science with this topic. Gender psychology, which is served by methods of various sciences, primarily sociological, pedagogical, linguistic, psychological, socio-psychological. Let us pay attention to linguistic and psycholinguistic methods in gender studies. Linguistic methods complement intelligence research tasks, associated with speech, word and text. Psycholinguistic methods used in gender psychology (semantic differential, semantic integral, semantic analysis of words and texts), aimed at studying speech messages, specific mechanisms of origin and perception, functions of speech activity in society, studying the relationship between speech messages and gender properties participants in the communication, to analyze the linguistic development in connection with the general development of the individual. Nowhere in gender practice there is the whole arsenal of psychological methods that allow you to explore psychological peculiarities of a person like observation, experiments, questionnaires, interviews, testing, modeling, etc. The methods of psychological self-diagnostics include: the gender aspect of the own socio-psychological portrait, a gender biography as a variant of the biographical method, aimed at the reconstruction of individual social experience. In the process of writing a gender autobiography, a person can understand the characteristics of his gender identity, as well as ways and means of their formation. Socio-psychological methods of studying gender include the study of socially constructed women’s and men’s roles, relationships and identities, sexual characteristics, psychological characteristics, etc. The use of gender indicators and gender approaches as a means of socio-psychological and sociological analysis broadens the subject boundaries of these disciplines and makes them the subject of study within these disciplines. And also, in the article a combination of concrete-historical, structural-typological, system-functional methods is implemented. Descriptive and comparative methods, method of typology, modeling are used. Also used is a method of content analysis for the study of gender content of modern gender-stamped journals. It was he who allowed quantitatively to identify and explore the features of the gender concept in the pages of periodicals for women and men. A combination of historical, structural-typological, system-functional methods is also implemented in the article. Descriptive and comparative methods, method of typology, modeling are used. A method of content analysis for the study of gender content of modern gender-labeled journals is also used. It allowed to identify and explore the features of the gender concept quantitatively in the periodicals for women and men. The conceptual perception and interpretation of the gender concept «woman», which is highlighted in the modern gender-labeled press in Ukraine, requires the elaboration of the polyfunctionality of gender interpretations, the comprehension of the metaphorical perception of this image and its role and purpose in society. A gendered approach to researching the gender content of contemporary periodicals for women and men. Conceptual analysis of contemporary gender-stamped publications within the gender conceptual sphere allows to identify and correlate the meta-gender and gender concepts that appear in society.