Xem 1-20 trên 87 kết quả Electrochemistry
  • Electrochemistry has been undergoing significant transformations in the last few decades. It is now the province of academics interested only in measuring thermodynamic properties of solutions and of industrialists using electrolysis or manufacturing batteries, with a huge gap between them. It has become clear that these, apparently distinct subjects, alongside others, have a common ground and that they have grown towards each other, particularly as a result of research into the rates of electrochemical processes....

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  • The book "Developments in Electrochemistry" contains five feature articles in recent advanced electrochemistry. These selected feature articles emphasize physical phenomena rather than mathematical formalisms of electrochemistry.

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  • Balancing oxidation-reduction equations, oxidation-reduction reactions, voltaic cells, cell EMF, effect of concentration on cell EMF is the main content of the lecture "Chapter 20: Electrochemistry". Invite you to consult the detailed content lectures to capture details.

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  • Electrochemistry has been used extensively in the past three decades to determine the chemical composition of environmental samples from the water column, sediments, soils, biofilms, and microbial mats.

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  • Electrochemistry, long-time corner stone for fundamental chemistry and physics, now plays an important role in many areas of applied science and technology. A very broad range of applications of electrochemical principles and technologies is found in materials science. Electrochemical deposition of metals and alloys, formation of oxide films and semi-conductors, corrosion and corrosion protection, new polymer materials that can switch between metallic conductivity and semi-conducting properties, and new applications in fast-evolving nanotechnologies are just some of the examples....

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  • The new edition of Principles of Electrochemistry has been considerably extended by a number of new sections, particularly dealing with 'electrochemical material science' (ion and electron conducting polymers, chemically modified electrodes), photoelectrochemistry, stochastic processes, new aspects of ion transfer across biological membranes, biosensors, etc. In view of this extension of the book we asked Dr Ladislav Kavan (the author of the section on non-electrochemical methods in the first edition) to contribute as a co-author discussing many of these topics.

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  • Oxidation/Reduction Reactions Reactions in which electrons are transferred from one reactant to another. Example I-1 Cu2+ + Zn (s) Cu (s) + Zn2+ Cu2+ has undergone reduction and is reduced. Oxidizing reagent: Cu2+. Reducing agent: Zn. Zn has undergone oxidation and is oxidized. .

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  • Substantial changes from the first English edition of this book (1993, Plenum Press, New York) have been introduced in this second edition. The content was rearranged such that all basic knowledge is contained in the first part of the book. This part was rewritten and to some extent simplified and can be used as a textbook for undergraduate students in electrochemistry and related branches. More advanced topics that will be of interest for people at a postgraduate level can be found in the subsequent parts....

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  • This work reports on the direct electrochemistry of the Desulfovibrio gigasaldehyde oxidoreductase (DgAOR), a molybdenum enzyme of the xanthine oxidase family that contains three redox-active cofactors: two [2Fe-2S] centers and a molybdopterin cytosine dinucleotide cofactor. The voltammetric behavior of the enzyme was analyzed at gold and carbon (pyrolytic graphite and glassy carbon) elec-trodes. Two different strategies were used: one with the molecules confined to the electrode surface and a second withDgAOR in solution....

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  • THE following book was written to supply a need felt by the author in giving a course of lectures on Applied Electrochemistry in the Massachusetts Institute of Technology. There has been no work in English covering this whole field, and students had either to rely on notes or refer to the sources from which this book is compiled. Neither of these methods of study is satisfactory, for notes cannot be well taken in a subject where illustrations are as important as they are here ; and in going to the original sources too much time is required to sift out the essential part.

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  • Đề tài khoa học và công nghệ cấp Đại học Đà Nẵng: Nghiên cứu xây dựng chương trình môn học Điện hóa học (Electrochemistry) phục vụ dạy học tăng cường tiếng Anh tại Đại học Đà Nẵng với mục tiêu xây dựng nội dung chương trình và biên soạn tài liệu môn học Điện hóa học nhằm phục vụ dạy học tăng cường tiếng Anh tại Đại học Đà Nẵng.

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  • Electrochemistry has been used extensively in the past three decades to determine the chemical composition of environmental samples from the water column, sediments, soils, biofilms, and microbial mats.

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  • Since the publication of The Practice of English Language Teaching in 1983 much has happened in the world of language teaching: new concerns have occupied the minds of methodologists and applied linguists; new textbooks have been written; new techniques have become fashionable. We must be grateful for all this flux and change since without it teaching would be a grey and ultimately depressing experience. But of course it isn't (except sometimes!).

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  • Periodontal disease is one of the major dental pathologies that affect human populations worldwide at high prevalence rates (Petersen, 2003). Periodontal diseases represents a family of heterogeneous chronic inflammatory lesions that involve the periodontium, a connective tissue protected by the epithelium, important to attach the teeth to the bone in the jaws and to support the teeth during function (Taylor, 2003).

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  • Although most of the research and clinical attention has been on unipolar depression among antenatal and postnatal women, there is evidence that women with bipolar disorders are at increased risk of postnatal psychosis, and women who have depressive symptoms should be screened for bipolar disorder and monitored for elevated mood. However, there is no consensus on the most effective screening method, with a variety of possible tools but no one well validated in antenatal women (Chessick & Dimidjian, 2010)....

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  • Renewable natural resources in the forefront to save the environment and we must do our best to find applications suitable for them. The production process is shown by the method of casting, rolling process including monitoring throughout the process. Innovative testing procedures described in electrochemistry, ultrasonic pulse velocity, fracture toughness in the macro-micro mechanical behavior and more. The coordination between the components, laminas and building parts are checked by different principles....

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  • Some people make physical chemistry sound more confusing than it really is. One of their best tricks is to define it inaccurately, saying it is ‘the physics of chemicals’. This definition is sometimes quite good, since it suggests we look at a chemical system and ascertain how it follows the laws of nature. This is true, but it suggests that chemistry is merely a sub-branch of physics; and the notoriously mathematical nature of physics impels us to avoid this otherwise useful way of looking at physical chemistry....

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  • As human beings currently use or appropriation of approximately 40% (through deforestation and land-use change) land production capacity, accurate account of all existing and potential biomass energy road use is important to chart the way forward in global scale, and in different areas. With the complexity of biomass as a source of many end products, food, this volume shed light on all topics related to biomass highlight new and review existing methods of production, its detection and usage....

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  • are not limited to: the wide range of oxidation and reduction reactions possible, the possibility of reaching very high levels of product purity and selectivity, and significantly less energy requirement. The process of electropolymerization leads to simple and reproducible formations of polymer films, which led to a broad material diversity of applications. Nowadays, electrochemistry plays an important role in a wide number of fundamental research and applied areas.

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  • This section provides information specific to utility green pricing programs, a subset of the market. The number of utilities offering green pricing has grown steadily in recent years—today, more than 850 investor-owned, public, and cooperative utilities in most states offer green pricing programs. Appendix D provides a list of utilities offering green pricing, and Appendix E provides Web links to all green power product offerings.

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