Results 301 to 310 of about 907,324 (322)

Advances in polymerization catalysts based on 4 and 5F groups of periodic table

Inorganica Chimica Acta, 1984
Abstract So far, in the development of new catalyst systems, the attention of chemists has been customarily addressed to catalyst activity, regio and stereospecificity. Nowadays, the impact of catalyst systems on other aspects of a chemical process has to be taken in due account, in relation to the increased cost of raw materials and energy.
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The Hydrophobicity of Doped Graphene by the Fourth Group Elements of the Periodic Table: Theoretical and Computational Studies

The Journal of Physical Chemistry C, 2019
Doping is usually considered as a common approach for improving properties of substances. Theoretical studies on graphene show that doping can effectively change the electrical properties of graphene, and it causes the graphene to behave like a metal or a semiconductor.
Reza Jafari, Beheshteh Sohrabi
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ECG periodic table: a new ECG classification based on heart cycle phase analysis

, 2013
Corresponding author: Phone: +7 (8634) 31-24-03. E-mail: cardiocode.rudenko@gmail.com Submitted: 17 April 2013 Accepted: 08 May 2013 Published online: 30 May 2013 Aims The article considers the development of the periodic table of ECG phase changes which
M. Rudenko, O. Voronova, V. Zernov
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Electric-polarization and structure of molecular complexes of the metallic halides of group II of the periodic table

Journal of Inorganic and Nuclear Chemistry, 1964
Dielectric measurements have been made on a number of molecular complexes of beryllium, zinc, cadmium and mercuric halides. The polarizations observed have been interpreted in terms of a tetrahedral configuration for the undissociated beryllium, zinc and cadmium halide complexes.
Jain, SR, Soundararajan, S
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The periodic table and the physics that drives it

Nature Reviews Chemistry, 2020
P. Schwerdtfeger, O. Smits, P. Pyykkö
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Group Structure in the Periodic Table

School Science and Mathematics, 1971
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On the ‘true position’ of hydrogen in the Periodic Table

Foundations of Chemistry: Philosophical, Historical, Educational and Interdisciplinary Studies of Chemistry, 2018
V. Petruševski, J. Cvetković
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The geometrical structures of halides of elements from the third group of the periodic table

Journal of Structural Chemistry, 1965
O. P. Charkin, M. E. Dyatkina
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The geometrical structures of halides and oxides of elements from the fourth group of the periodic table

Journal of Structural Chemistry, 1965
M. E. Dyatkina, O. P. Charkin
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Effect of pre-irradiation on the subsequent thermal decomposition of permanganates of metals of the first group in the periodic table

, 1963
V BOLDIRIEV
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