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Amel Khalfaoui, Abderrezzaq Benalia, Zineb Selama, Amira Hammoud, Kerroum Derbal, Antonio Panico and Antonio Pizzi
The present work aims to assess the effectiveness and efficiency of orange peels as a low-cost biosorbent for removing Cr(VI) from an aqueous solution by the biosorbent process. The orange peels as adsorbent was characterized using different methods, suc...
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Tiago J. Lopes, Tatiana Sampaio, João P. Oliveira, Mafalda P. Pinto, Daniel A. Marinho and Jorge E. Morais
Evidence on the role of propulsion compared to drag in swimming, based on experimental settings, is still lacking. However, higher levels of propulsion seem to lead to faster swimming velocities. The aim of this study was to understand the variation in a...
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Jaroslaw Chwastowski and Pawel Staron
The sorption process of chromium(VI) and cadmium(II) onto avocado peel (AP) and its pyrolyzed version (PAP) was carried out. The pyrolysis process was investigated in a tube furnace under inert gas conditions (argon) using a temperature equal to 750 °C. ...
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Vadim K. Goncharov
This article contains the analytical model of the drift of a separate ice field under the action of wind and current, in which velocities and directions can vary over time. The model takes into account the mass of ice, added mass of seawater, and the eff...
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Yanan Zhang, Zekan He, Haijun Xuan, Jianxin Liu, Xiaojun Guo, Dong Mi and Zehui Fang
The airworthiness standards of transport category airplanes clearly stipulate that the equipment containing high-energy rotors must be shown by test that it can contain any failure of a high-energy rotor that occurs at the highest speed. The air turbine ...
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Ghazanfar Mehdi, Maria Grazia De Giorgi, Sara Bonuso, Zubair Ali Shah, Giacomo Cinieri and Antonio Ficarella
This study investigates the kinetic modeling of CH4/H2/Air mixture with nanosecond pulse discharge (NSPD) by varying H2/CH4 ratios from 0 to 20% at ambient pressure and temperature. A validated version of the plasma and chemical kinetic mechanisms was us...
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Panagiota Keramea, Nikolaos Kokkos, Georgios D. Gikas and Georgios Sylaios
Over the latest decades, oil marine pollution has posed a vital threat for global ocean health, since spillages of any scale are related to environmental, social and financial impacts. The worldwide increase in oil and gas demand, and the parallel rise i...
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Justina Jaseliunaite, Mantas Povilaitis and Arvaidas Galdikas
Polycrystalline coatings and materials are widely used in engineering applications. Therefore, it is important to know their kinetics and mass transport mechanisms. The effect of grain boundaries (GBs) on diffusion in thin films with different morphologi...
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Petya Popova-Krumova, Venko Beschkov, Evgenia Vasileva and Tsvetomila Parvanova-Mancheva
This study proposes a mathematical modeling approach for evaluating the effect of applying a permanent electric field on the biodegradation of 1,2-dibromoethane by bacterial cells of Bradyrhizobium japonicum 273. Two models for inhibited microbial growth...
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Bing Yang, Po Hu and Yijun Hou
The semidiurnal internal tides (ITs) on the continental slope of the southeastern East China Sea (ECS) exhibited abrupt enhancement in November of 2017. This enhancement resulted from the intensification of the coherent semidiurnal ITs. Coherent and inco...
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