Results 21 to 30 of about 156,544 (253)
Determining kinetic constants and transport efficiencies at membrane interfaces to optimize the removal/recovery of Cu(II) through lulk liquid membranes containing benzoylacetone as carrier [PDF]
, 2017 The removal, separation, and enrichment of heavy metals in aqueous solutions has become a prime concern over the last few decades because of both their adverse effects on the ecosystem and living organisms and their valuable resource character.
Gómez Gómez, Elisa +4 more
core +2 more sources
Strange quark mass from e+e- revisited and present status of light quark masses [PDF]
, 2005 We reconsider the determinations of the strange quark mass m_s from e+e- into hadrons data using a new combination of FESR and revisiting the existing tau-like sum rules by including non-resonant contributions to the spectral functions.
M. Gockeler +8 more
core +3 more sources
The Radiative rare decays $B\to K^{**}\gamma$ in the light-cone QCD sum rule approach [PDF]
, 2001 We predict contributions of higher $K$-resonances to the radiative rare decays $b\to s\gamma$, in the framework of the QCD sum rules on the light cone, which combines the traditional QCD sum rule method with the description of final state mesons in terms
Safir, A. S.
core +1 more source
Results in ChemistryStability constants of the complexes of some commercially available ligands, containing two or three oxyamide groups in nitrobenzene have been determined from the extraction data.
Petr Vaňura, Pavel Selucký
doaj +1 more source
Acta Chimica Slovenica, 2017 Solvent extraction of microamounts of Eu3+ and Am3+ from water into nitrobenzene by means of a mixture of hydrogen dicarbollylcobaltate (H+B-) and N,N,N’,N’-tetrabutyl-1,10-phenanthroline-2,9-dicarboxamide (L) was studied.
Emanuel Makrlík +5 more
doaj +1 more source
Decay Constants of Heavy-Light Mesons from QCD
, 2015 We summarize recently improved results for the pseudoscalar [1,2] and vector [3] meson decay constants and their ratios from QCD spectral sum rules where N2LO + estimate of the N3LO PT and power corrections up to d< 6 dimensions have been included in the
Narison, Stephan
core +3 more sources
Chemical and Pharmaceutical Bulletin, 1972 Stability constants and extraction constants of mercury complexes of monothiodibenzoylmethane (SBB) and monothiothenoyltrifluoroacetone (STTA) were determined by the solvent extraction method in the presence of cyanide ion as the auxiliary complexing agent. Chloroform was used as the solvent. These values were compared with those of mercury dithizonate.
AKIRA YOKOYAMA +2 more
openaire +2 more sources
The Synergistic Effect in Solvent Extraction—The Correlation of the Ionic Radius of Rare Earth Elements with the Stability Constants of Rare Earth Benzoyltrifluoroacetonate Adducts with n-Hexyl Alcohol, TBP and TOPO [PDF]
Bulletin of the Chemical Society of Japan, 1967 Abstract The synergistic effects of n-hexyl alcohol, TBP and TOPO on the extraction of rare earth ions with benzoyltrifluoroacetone in benzene have been studied. The stability constants of the adducts were determined by means of the curve-fitting method.
Tsunenobu Shigematsu +3 more
openaire +1 more source
Some Results on Inverse Scattering [PDF]
, 2007 A review of some of the author's results in the area of inverse scattering is given. The following topics are discussed: 1) Property $C$ and applications, 2) Stable inversion of fixed-energy 3D scattering data and its error estimate, 3) Inverse ...
Ramm, A. G.
core +8 more sources
Membranes, 2021 In this paper, the application of new substituted 2,6-bis((benzoyl-R)amino)pyridine (R = H, 4-Me, and 4-NMe2) derivatives for the recovery of copper(II), nickel(II), cobalt(II), and zinc(II) ions from aqueous solutions was described.
Daria Bożejewicz +3 more
doaj +1 more source