Výsledky vyhledávání

Anode to Cathode Electrical Current Modelling for Cell Retrofit Application of Conductive Nails Technology

Autor: W. Berends

Publikováno v: The Minerals, Metals & Materials Series ISBN: 9783030653958

The electrical current density and distribution pattern between the anode and cathode is of fundamental influence on potnoise and current efficiency, also on cathode wear and pot-life, and potentially for low-voltage anode effect. The reduction of ha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::890d841a18118eeda7409147bacdd721
https://doi.org/10.1007/978-3-030-65396-5_130

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Akademický článek

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The Impact of Anode Nails on the Stub to Carbon Electrical Contact Resistance of Anode Assemblies with Simulated Corroded Stubs

Autor: W. Berends

Publikováno v: Light Metals 2017 ISBN: 9783319515403

The solidification shrinkage of cast iron causes low contact pressure and high contact resistance in the stub to carbon connection. The use of steel anode nails to bridge the shrinkage gap has previously been demonstrated to reduce contact resistance

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::17477805935f781f67910974b6db9897
https://doi.org/10.1007/978-3-319-51541-0_160

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Low Resistance Anode Assembly Using Steel Stubhole Conductors Across The Cast Iron To Carbon Interface

Autor: M. Gagnon, W. Berends, S. Haley

Publikováno v: Light Metals 2016 ISBN: 9783319486154
Light Metals 2016

Anode assemblies suffer a significant electrical contact resistance across the cast iron to carbon interface that is inversely dependent on contact pressure and area. Industry efforts have incrementally reduced this electrical resistance by increasin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1636fb7356d9dcfebb3f9791df79ee3
https://doi.org/10.1002/9781119274780.ch162

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Investigations on pyrazine derivatives II. The preparation of pyrazine 2,3,5-tricarboxylic acid and of pyrazine 2,5- and 2,6-dicarboxylic acids

Autor: W. Berends, H. I. X. Mager

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 77:827-841

A satisfactory preparative method for pyrazine tricarboxylic acid has been found in the oxidation of the readily available 2-(D-arabo)-tetrahydroxybutylquinoxaline. Pyrazine tricarboxylic acid is easily decarboxylated to pyrazine 2,5- and 2,6-dicarbo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f3f2d8f5b22c3eb9296e2d7a81e6d209
https://doi.org/10.1002/recl.19580770907

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Investigations on pyrazine derivatives. V. A more detailed investigation on the catalytic hydrogenation of esters of pyrazine carboxylic acids

Autor: W. Berends, H. I. X. Mager

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 78:109-125

In the first publication in this series it was shown that only partial reduction of the pyrazine ring occurs in the catalytic hydrogenation of tetra-carbethoxypyrazine. The remaining double bonds in the resultant reaction product are apparently stabi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fe6e25d496c2a32da322b07c1d6c523d
https://doi.org/10.1002/recl.19590780207

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The effects of ultraviolet light on some components of the nucleic acids: III. Apurinic acid

Autor: R. Beukers, J. Ijlstra, W. Berends

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 78:247-251

Apurinic acid, prepared from deoxyribonucleic acid, is destroyed by ultraviolet light much more rapidly than would be expected from the behaviour of the component pyrimidine-nucleotides under this radiation. It is confirmed by analysis that both thym

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ce5be89be96fd62dcdbe7c445725a62
https://doi.org/10.1002/recl.19590780404

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Photochemical hydroxylation of quinoxalines

Autor: W. Berends, J. Verbeek, H. C. A. van Beek

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 95:285-289

Irradiation of quinoxaline (1) in acidic aqueous solution under anaerobic conditions leads to the formation of 5-hydroxyquinoxaline (4) and the 1,4-dihydroquinoxaline radical cation (5). The radical cation (5) was characterized by ESR spectroscopy. U

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc07acb4ae3121a0ad8fa0181c0cb02f
https://doi.org/10.1002/recl.19760951202

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Activation and transfer of oxygen. VI. The influence of hydrochloric acid on the autoxidation of dihydroalloxazines

Autor: W. Berends, H. I. X. Mager

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 91:630-642

Autoxidative processes in HCl may be influenced by reactions of the organic peroxy intermediates, or of H2O2, with the medium. These reactions with HCl led to the evolution of O2 and also of Cl2 under certain conditions. The question whether HCl is o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d78686beeb64144c873579095d42294
https://doi.org/10.1002/recl.19720910602

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Coupled and decoupled processes in the autoxidation of partially reduced pteridines and flavins

Autor: H. I. X. Mager, W. Berends, R. Addink

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 86:833-851

Organic hydroperoxide formation has to be regarded as the primary process in the autoxidation of partially reduced pteridines and flavins, to be distinguished from secondary oxidations and H2O2-production. Material balances between oxidized products,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02bd0fd95ef82d5b4f4d6da4e84d3f78
https://doi.org/10.1002/recl.19670860807

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