منابع مشابه
Re-evaluation of Scrapers Reduction Model Using Geometric Index of Reduction (Mar-Tarik Middle Paleolithic Assemblages)
Paleolithic lithic assemblages are traditionally described on the bases of presence of a variety of tool types(typology) and of different knapping technologies. In this study we tried to investigate whether the presence ofdifferent groups of scrapers in the Mar-Tarik site assigned to the Middle Paleolithic represent specific function orjust different stages of the reduction process and constant...
متن کاملEvaluation of Pt and Re oxidation state in a pressurized reactor: difference in reduction between gas and liquid phase.
Determination of metal oxidation state under relevant working conditions is crucial to understand catalytic behaviour. The reduction behaviour of Pt and Re was evaluated simultaneously as a function of support and solvent in a pressurized reactor (autoclave). The bimetallic catalysts are used in selective hydrogenation of carboxylic acids and amides. Gas phase reduction reduced the metals more ...
متن کاملre-evaluation of scrapers reduction model using geometric index of reduction (mar-tarik middle paleolithic assemblages)
paleolithic lithic assemblages are traditionally described on the bases of presence of a variety of tool types(typology) and of different knapping technologies. in this study we tried to investigate whether the presence ofdifferent groups of scrapers in the mar-tarik site assigned to the middle paleolithic represent specific function orjust different stages of the reduction process and constant...
متن کاملOxidation-Reduction Potentials
In the first part of the book purely physico-chemical considerations of redox potentials are lucidly and thoroughly dealt with, and in the second part their applications to physiology are systematically developed. To a student of physiology, who is not well versed in the principles of electrochemistry, this book will be of great value as the author initiates the reader first into those parts of...
متن کاملVoltammetric reduction and re-oxidation of solid coordination polymers of dihydroxybenzoquinone.
Crystalline (PMePh(3))(2)[Cd(2)(dhbq)(3)], (dhbq(2-) = deprotonated 2,5-dihydroxybenzoquinone, H(2)dhbq), attached to electrode surfaces, survives repeated cycles of reduction followed by re-oxidation when placed in contact with aqueous electrolyte media. The results afford encouragement that a range of coordination networks containing redox active connecting ligands and/or redox active metal c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1945
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed022p614