منابع مشابه
Stationary Lead-Acid Batteries With Selenium Alloys
Until ten years ago the grids of lead-acid batteries were usually made of lead-antimony alloys containing 5-11 wt. % antimony. The necessary mechanical strength and castability are easily achieved with this content of antimony. However, the unavoidable corrosion of the positive grid liberates antimony from the grid, which proves to be both unfavorable as well as unfavorable with respect to batt...
متن کاملNew Dynamical Models of Lead–Acid Batteries
This paper documents the main results of studies that have been carried out, during a period of more than a decade, at University of Pisa in co-operation with other technical Italian institutions, about models of electrochemical batteries suitable for the use of the electrical engineer, in particular for the analysis of electrical systems with batteries. The problem of simulating electrochemica...
متن کاملMIPAS Stratospheric Nitric Acid
D. Y. Wang, M. Höpfner, G. Mengistu Tsidu, G. P. Stiller, T. von Clarmann, H. Fischer, T. Blumenstock , N. Glatthor, U. Grabowski, F. Hase, S. Kellmann, A. Linden, M. Milz, H. Oelhaf, M. Schneider, T. Steck, G. Wetzel, M. López-Puertas, B. Funke, M. E. Koukouli, H. Nakajima, T. Sugita, H. Irie, J. Urban, D. Murtagh, M. L. Santee, G. Toon, M. R. Gunson, F. W. Irion, C. D. Boone, K. Walker, and P...
متن کاملMIPAS Operational Nitric Acid
D. Y. Wang, M. Höpfner, C. E. Blom, W. E. Ward, H. Fischer, T. Blumenstock, F. Hase, C. Keim, G. Y. Liu, S. Mikuteit, H. Oelhaf, G. Wetzel, U. Cortesi, F. Mencaraglia, G. Bianchini, G. Redaelli, M. Pirre, V. Catoire, N. Huret, C. Vigouroux, M. De Mazière, E. Mahieu, P. Demoulin, S. Wood, D. Smale, N. Jones, H. Nakajima, T. Sugita, J. Urban, D. Murtagh, C. D. Boone, P. F. Bernath, K. A. Walker, ...
متن کاملThe Conversion Kinetics of Tincal to Boric Acid in Nitric Acid Solutions
Pure borax and various boron compounds are produced from the solutions in which tincal is dissolved with various reagents. Economically important boron compounds such as boric acid, borax, boric oxide, and refined hydrated sodium borates and perborates are produced from boron-containing ores. The production of boric acid by using nitric acid from tincal is more advantageous because it evalu...
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ژورنال
عنوان ژورنال: Nature
سال: 1879
ISSN: 0028-0836,1476-4687
DOI: 10.1038/019581b0