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Support Considerations and Lifecycle
Published in Ali Youssef, Douglas McDonald II, Jon Linton, Bob Zemke, Aaron Earle, Wi-Fi Enabled Healthcare, 2014
Ali Youssef, Douglas McDonald II, Jon Linton, Bob Zemke, Aaron Earle
The Sysadmin, Audit, Networking, and Security (SANS) Institute is one of the leading security training organizations for all security IT competencies. It offers the Global Information Assurance Certification (GIAC) programs. The Accessing and Auditing Wireless Networks (GAWN) is the wireless security offering. Candidates may choose to prepare for the exam by taking the SANS Training Course: SEC617: Wireless Ethical Hacking, Penetration Testing, and Defenses.
EUROCORR 2017 in combination with the 20th International Corrosion Congress and the Process Safety Congress 2017: Corrosion Control for safer living part 3
Published in Corrosion Engineering, Science and Technology, 2018
A review paper entitled ‘Chemical inhibition of carbon steel corrosion: novel approaches to analysis of corrosion-inhibitor films’ was presented by Kateřina Lepková (Curtin University, Perth, Australia). The performance of corrosion inhibitors is influenced by their adsorption mechanism and the resultant orientation at the substrate. Recent developments in atomic force microscopy (AFM) have facilitated the monitoring of how corrosion-inhibitor films form at carbon steel surfaces exposed to CO2-saturated brine. The force required to remove an inhibitor film from the steel surface can now be measured through lateral force removal by AFM. Such methodology, combined with electrochemical measurements that provide information on the efficiency of the surface film, allows for direct comparison of various inhibitors. Further understanding of the adsorption mechanism could be obtained by small-angle X-ray scattering (SAXS) and small-angle neutron scattering (SANS).
Characterisation of nano-assemblies inside mesopores using neutron scattering*
Published in Molecular Physics, 2021
Yingzhen Ma, William T. Heller, Lilin He, William A. Shelton, Gernot Rother, Bhuvnesh Bharti
Adsorption of dissolved matter and nanoparticles in porous materials controls various important processes including contaminant transport in subsurface water systems, water treatment, and drug delivery [1–6]. Synthetic porous materials also provide a platform to isolate, and stabilise metastable states of the adsorbates and harvest their unusual physical and chemical properties [7–12]. The affinity and amount of adsorbate immobilised in a porous material is experimentally quantified by adsorption isotherms. Several studies have been reported on the binding of molecules/nanoparticles (NPs) from aqueous solution to the pores of a hard material [13–17]. These studies demonstrate that the adsorption of molecules/NPs in porous materials is primarily governed by the pore wall-NP/molecule interactions, interparticle/intermolecular interactions and the degree of the pore confinement. While numerous measurements are reported on the amount of adsorbate in porous materials, only a few studies experimentally investigate the nanoscale structures of adsorbates formed in nanometer pores [18,19]. This lack of literature and knowledge exists due to the inherent complexity of the morphological characterisation of the matter immobilised in the nanopores using conventional techniques such as infrared spectroscopy, and electron microscopy [20]. In these techniques, the porous matrix interferes with the measurements, and limits information on the assemblies formed by adsorbate molecules/nanoparticles in pores. Such limitations can be readily overcome by Small Angle Neutron Scattering (SANS) performed in solvent which matches the scattering length density of the porous matrix [21–25]. The primary challenges in such SANS studies are in the details of analysis of the data and relating the obtained scattering profiles to the assemblies formed in the pores.