Results 21 to 30 of about 1,005,707 (276)

Heavy quark form factors at two loops in perturbative QCD [PDF]

, 2017
We present the results for heavy quark form factors at two-loop order in perturbative QCD for different currents, namely vector, axial-vector, scalar and pseudo-scalar currents, up to second order in the dimensional regularization parameter.
Ablinger, J., Behring, A., Blümlein, J., De Freitas, A., Falcioni, G., Marquard, P., Rana, N., Schneider, C.   +7 more
core   +2 more sources

Discrete Weighted Pseudo Asymptotic Periodicity of Second Order Difference Equations

Discrete Dynamics in Nature and Society, 2014
We define the concept of discrete weighted pseudo-S-asymptotically periodic function and prove some basic results including composition theorem. We investigate the existence, and uniqueness of discrete weighted pseudo-S-asymptotically periodic solution ...
Zhinan Xia
doaj   +1 more source

Studies on the Adsorption Behavior of 152+154Eu (III) on Synthesized Graphene Oxide

Journal of Scientific Research in Science, 2020
Graphene oxide (GO) Samples are locally synthesized for use in sorption and radionuclides removal studies of 152+154Eu (III). The samples were characterized by FT-IR, X-ray diffraction (XRD) and electron scanning microscopy (SEM). These samples are used
F.H. El-Sweify, N. A. Mohamed, D.A. Abd El-Monem, H.E. Ramadan, W.S. Hegazy   +4 more
doaj   +1 more source

Removal of Ni (II), Mn (II) and Zn (II) from crude yellow cake aqueous solution by cross-linked chitosan and polyvinyl alcohol

Egyptian Journal of Petroleum, 2021
The removal of Ni (II), Mn (II) and Zn (II) from crude yellow cake onto chitosan cross-linked by Epichlorohydrin (CS-ECH) and polyvinyl alcohol (PVA) were investigated in nitrate solutions. The influence of contact time, pH, temperature and initial metal
Huda Amer Ibrahiem, Wagdy.I. El- Dougdoug, Hassan H. H. Hefni, Abdallah A. El-Sawy, Hesham.M. Kamal, Khalid.F. Mahmoud   +5 more
doaj   +1 more source

Axial Couplings on the World-Line [PDF]

, 1995
We construct a world-line representation for the fermionic one-loop effective action with axial and also vector, scalar, and pseudo-scalar couplings. We use this expression to compute a few selected scattering amplitudes.
Alvarez-Gaumé, Alvarez-Gaumé, Berezin, Bern, Bern, Bern, Brink, Brink, Chanowitz, Christian Schubert, D'Hoker, de Boer, Feynman, Feynman, Fliegner, Halpern, Hostler, Lukas Nellen, McKeon, McKeon, Michael G. Schmidt, Mondragón, Morgan, Myriam Mondragón, Polyakov, Schmidt, Schmidt, Schmidt, Strassler, van Holten   +29 more
core   +3 more sources

Assessment of Chemically Modified Lignocellulose Waste for the Adsorption of Cr (VI)

Revista Facultad de Ingeniería, 2019
Chromium (Cr(VI)) presents carcinogenic and mutagenic effects in living beings. Biosorption is an alternative to conventional technologies for the treatment of waste water.
Candelaria Tejada-Tovar, M.Sc., Adriana Herrera-Barros, Ph. D., Angel Villabona-Ortíz, M.Sc.   +2 more
doaj   +1 more source

Cr(VI) Sorption from Aqueous Solution: A Review

Applied Sciences, 2020
Hexavalent chromium (Cr(VI)) in water systems is a major hazard for living organisms, including humans. The most popular technology currently used to remove Cr(VI) from polluted water is sorption for its effectiveness, ease of use, low cost and ...
Angelo Fenti, Simeone Chianese, Pasquale Iovino, Dino Musmarra, Stefano Salvestrini   +4 more
doaj   +1 more source

Random-field Solutions to Linear Hyperbolic Stochastic Partial Differential Equations with Variable Coefficients [PDF]

, 2017
In this article we show the existence of a random-field solution to linear stochastic partial differential equations whose partial differential operator is hyperbolic and has variable coefficients that may depend on the temporal and spatial argument. The
Ascanelli, Alessia, Süß, André
core   +2 more sources

The Variational Principle for the Uniform Acceleration and Quasi-Spin in Two Dimensional Space-Time [PDF]

, 2008
The variational principle and the corresponding differential equation for geodesic circles in two dimensional (pseudo)-Riemannian space are being discovered.
Matsyuk, Roman Ya.
core   +4 more sources

Adsorption Kinetics of Reactive Dyes on Ash from Town Heating Plant

Archives of Environmental Protection, 2014
In order to investigate the mechanism of adsorption of reactive dyes from the textile industry on ash from heating plant produced by brown coal combustion, some characteristic sorption constants are determined using Langergren adsorption equations for ...
Djordjevic Dragan, Stojiljkovic Dragan, Smelcerovic Miodrag   +2 more
doaj   +1 more source