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Finite Element Modeling of Nanotube Structures

Finite Element Modeling of Nanotube Structures

Mokhtar Awang; Ehsan Mohammadpour; Ibrahim Dauda Muhammad

Springer International Publishing AG
2015
sidottu
This book presents a new approach to modeling carbon structures such as graphene and carbon nanotubes using finite element methods, and addresses the latest advances in numerical studies for these materials. Based on the available findings, the book develops an effective finite element approach for modeling the structure and the deformation of grapheme-based materials. Further, modeling processing for single-walled and multi-walled carbon nanotubes is demonstrated in detail.
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Finite Element Modeling of Nanotube Structures

Finite Element Modeling of Nanotube Structures

Mokhtar Awang; Ehsan Mohammadpour; Ibrahim Dauda Muhammad

Springer International Publishing AG
2016
nidottu
This book presents a new approach to modeling carbon structures such as graphene and carbon nanotubes using finite element methods, and addresses the latest advances in numerical studies for these materials. Based on the available findings, the book develops an effective finite element approach for modeling the structure and the deformation of grapheme-based materials. Further, modeling processing for single-walled and multi-walled carbon nanotubes is demonstrated in detail.
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The Effects of Lead, Cadmium, Mercury and Arsenic on Fish

The Effects of Lead, Cadmium, Mercury and Arsenic on Fish

Mokhtar Al-Abyadh; Mohammed Al-Qadasy; Ali Al-Kaf

LAP Lambert Academic Publishing
2018
pokkari
Increased humanely use of Toxic Heavy Metals such as Lead (Pb), Cadmium (Cd), Mercury (Hg) and Arsenic (As) and their access to the marine environment has caused much concern over the last century. These Toxic Heavy Metals known in the marine environment may lead to toxic effects, even if they are relatively low concentrations at present in living organisms. In this study, the samples were collected from the three different Cities of Yemeni coasts. The Cities are named as Al-Hodaeidah, Aden and AL-Mukalla, the trial was undertaken for the period of seasons: winter 2011, summer 2012 and winter 2013. Fresh samples were procured from the showrooms for sale at the public auction adjacent to the fishing grounds. Four species of fish were collected and analyzed: (emperor) Lethrinus mahsena, (Longtail tuna) Thunnus tonggol, (Pickhandle Barracuda) Sphyraena jello and (Areolate grouper) Epinephelus areolatus. The samples were as follows: 81 samples of Filtered Surface Seawater, Sediment and 324 fish samples (for Muscle, Lver and Gills) ), Which were digested using appropriate acids, tools and different methods, and then measured the concentrations of heavy metals.
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