Results 31 to 40 of about 623,839 (308)
Are the fundamental constants constant? [PDF]
Contemporary Physics, 1972 Abstract This article reviews recent work on the possible variability of basic physical constants, such as the charge of the electron e, Planck's constant h and the gravitational constant G. The problem was first raised by Dirac as early as 1937. Its present state is here discussed, together with new suggestions which include Gamow's hypothesis that ...
V. P. Chechev, Ya M. Kramarovsky
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Rate and equilibrium constants for the addition of N-heterocyclic carbenes into benzaldehydes : a remarkable 2-substituent effect [PDF]
, 2015 We thank the Royal Society for a University Research Fellowship (ADS), the EPSRC (CJC and RM) grant number EP/G013268/1 and the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) ERC grant agreement no 279850
Collett, Christopher John +17 more
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Sharp constants in inequalities admitting the Calder\'on transference principle [PDF]
, 2023 The aim of this note is twofold. Firstly, we prove an abstract version of the Calder\'on transference principle for inequalities of admissible type in the general commutative multilinear and multiparameter setting. Such an operation does not increase the
Kosz, Dariusz, Kosz, D.
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Henry's law constants of polyols [PDF]
Atmospheric Chemistry and Physics, 2014 Henry's law constants (HLC) are derived for several polyols bearing between 2 and 6 hydroxyl groups, based on literature data for water activity, vapour pressure and/or solubility.
S. Compernolle, J.-F. Müller
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Correlations between experimental and theoretical adiabatic ionization energies for organic compounds and rate constants for atmospheric reactions with hydroxyl radicals [PDF]
, 2010 Adiabatic ionization energy (AIE) calculations were performed at the AM1, PM3, PM6, PDDG, HF/QZVP, and B3LYP/QZVP levels of theory on 722 atmospherically relevant organic compounds with available experimental rate constants for atmospheric reactions with
Sierra Rayne, Kaya Forest
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Opuscula Mathematica, 2007 We introduce the \(J\)-convexity constants on Banach spaces and give some properties of the constants. We give the relations between the \(J\)-convexity constants and the \(n\)-th von Neumann-Jordan constants.
Jincai Wang
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Frontiers in Physics, 2021 The article presents the irradiation effects of low energy (∼0.5 keV) inert gaseous Argon ion beams on optical constants [real (n) and imaginary (k) parts of the refractive index], dielectric constants, skin depth, and optical conductivity of copper (Cu),
Krishn Pal Singh +1 more
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Communications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1954 sabin hakkında. 1929 da Landau 2 < Ul eşitsizliğini ispat etmiştir. Evvelki bir yazıda bir S sabiti tarif ederek bu eşitsizliği, muhtemel bir eşitliği ihtiva eden bir eşitsizlikle takviye ettik. Böylelikle 31 nın İslah edilmiş yeni bir alt sınırı tarif edilmiş oldu.
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Varying Constants Entropic-ΛCDM Cosmology
Entropy, 2016 We formulate the basic framework of thermodynamical entropic force cosmology which allows variation of the gravitational constant G and the speed of light c. Three different approaches to the formulation of the field equations are presented.
Mariusz P. Da̧browski +2 more
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Optimizing lens constants specifically for short eyes: Is it essential?
Indian Journal of Ophthalmology, 2021 Purpose: Optimization of lens constants is a critically important step that improves refractive outcomes significantly. Whether lens constants optimized for the entire range of axial length would perform equally well in short eyes is still a matter of ...
Ankur K Shrivastava +5 more
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