Nanoporous, hypercrosslinked polypyrroles with surface areas of up to 720 m2 g(-1) have been prepared; their pore sizes and gas adsorption selectivities were controlled by varying the size of the crosslinking units.
Some of the physico-electrochemical properties of passive oxide films that form on reactive metal and alloy surfaces, and which protect the underlying metals from reaction with corrosive environments, are reviewed within the context of the Point Defect Model (PDM). This model yields analytical expressions for the steady state current and film thickness and for the transients in these properties that can be used to predict deterministically the accumulation of general corrosion damage to metal surfaces, provided that the evolutionary path to the future state is continuous and can be specified. The conditions under which passivity may exist are defined in terms of Phase Space Analysis (PSA) of the PDM and it is found that passivity is invariably a meta-stable phenomenon. PSA leads to the development of Kinetic Stability Diagrams (KSDs) as alternatives to the equilibrium thermodynamic Pourbaix diagrams that are now used to describe the conditions under which passivity is observed.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and reactions of oxametallacyclobutanes and oxametallacyclobutenes of rutheniumJohn F. Hartwig, Robert G. Bergman, and Richard A. AndersenCite this: Organometallics 1991, 10, 9, 3344–3362Publication Date (Print):September 1, 1991Publication History Published online1 May 2002Published inissue 1 September 1991https://pubs.acs.org/doi/10.1021/om00055a061https://doi.org/10.1021/om00055a061research-articleACS PublicationsRequest reuse permissionsArticle Views622Altmetric-Citations69LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Received 4 December 2009DOI:https://doi.org/10.1103/PhysRevLett.103.259902©2009 American Physical Society
The emergence of complexity is investigated from the viewpoint of the energy balance property and the divergence property of reaction–diffusion cellular neural networks.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, characterization, and reactivity of triphenylsilyl, triphenylgermyl, and triphenylstannyl derivatives of zirconium and hafniumHee Gweon Woo, William P. Freeman, and T. Don TilleyCite this: Organometallics 1992, 11, 6, 2198–2205Publication Date (Print):June 1, 1992Publication History Published online1 May 2002Published inissue 1 June 1992https://pubs.acs.org/doi/10.1021/om00042a038https://doi.org/10.1021/om00042a038research-articleACS PublicationsRequest reuse permissionsArticle Views408Altmetric-Citations59LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPlasma-initiated polymerization of hexachlorocyclotriphosphazeneJames A. Klein, Alexis T. Bell, and David S. SoongCite this: Macromolecules 1987, 20, 4, 782–789Publication Date (Print):April 1, 1987Publication History Published online1 May 2002Published inissue 1 April 1987https://pubs.acs.org/doi/10.1021/ma00170a014https://doi.org/10.1021/ma00170a014research-articleACS PublicationsRequest reuse permissionsArticle Views160Altmetric-Citations12LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Cet article élabore l’ontologie et la méthodologie sociales de la sociologie charnelle comme mode distinctif d’investigation déjouant la posture spectatrice pour saisir l’action-en-trainde-se-faire, dans le sillage des débats suscités par mon enquête par apprentissage sur la boxe comme art du corps plébéien. Je critique d’abord les notions (dualiste) d’agent, (externaliste) de structure et (mentaliste) de connaissance qui régentent les sciences sociales contemporaines et j’ébauche une conception alternative de l’animal social considéré non pas comme un simple manipulateur de symboles mais comme une créature de chair et de sang sensible, souffrante, sachant-faire, sédimentée et située. Je mets en exergue la primauté du savoir pratique incorporé qui survient des trames d’action dans lesquelles il est continuellement imbriqué, et j’examine quelles sont les modalités d’enquête aptes à déployer et à tirer profit de cette conception incarnée de l’agent. Je soutiens que l’ ethnographie énactive , variante du travail de terrain par immersion fondée sur l’« effectuation du phénomène », ouvre une voie féconde pour saisir les schèmes cognitifs, conatifs et cathectiques (habitus) qui génèrent les conduites et sous-tendent le cosmos considéré. Mais il faut de l’audace et de la ténacité sociales pour tirer parti de la « participation observante » et atteindre la compétence sociale (par opposition à la saturation empirique). Je reviens en conclusion sur le dialogue de Bourdieu avec Pascal afin de soupeser les difficultés et de souligner l’urgence de saisir l’« esprit de finesse » qui anime toute compétence mais qui disparaît des comptesrendus de la science sociale normale.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTemperature, a Simple and Efficient Tool for the Control of Pore Size Distribution in Macroporous PolymersFrantisek Svec and Jean M. J. FrechetCite this: Macromolecules 1995, 28, 22, 7580–7582Publication Date (Print):October 1, 1995Publication History Published online1 May 2002Published inissue 1 October 1995https://pubs.acs.org/doi/10.1021/ma00126a044https://doi.org/10.1021/ma00126a044research-articleACS PublicationsRequest reuse permissionsArticle Views1280Altmetric-Citations205LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
