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Techniques for increasing the thermal stability of poly[(R)-3-hydroxybutyrate] recovered by digestion methods
(Elsevier, 2021-09-22)
This work deals with the thermal stability of poly[(R)-3-hydroxybutyrate] (PHB) obtained by different isolation methods. PHB was recovered from bacteria by digestion with three different reagents (acid, base, surfactant) ...
Hydrodynamically enhanced electrochemical mass transfer on the surface of an electrically conductive droplet
(Springer, 2021-04-09)
A fully coupled model is proposed to investigate the influence of flow on electrochemical mass transfer at the interface between the electrolyte and an electrically conductive droplet. The electric current flows through ...
Framework, Tools and Good Practices for Cybersecurity Curricula
(IEEE, 2021-06-30)
This paper aims to provide practical tools and strategies to help higher education providers design good cybersecurity curricula. First, we analyze the content of 89 existing study programs worldwide, collect recommendations ...
In-situ XRD study of a Chromium doped LiNi0.5Mn1.5O4 cathode for Li-ion battery
(Elsevier, 2021-09-01)
This paper deals with structural (in-situ XRD) and electrochemical characterization of high-voltage lithium-ion cathode materials LiMn2O4 (LMO), LiNi0.5Mn1.5O4 (LNMO), and LiCr0.1Ni0.4Mn1.5O4 (LCNMO) prepared by solid-state ...
Silver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Length
(MDPI, 2017-10-23)
The present study is focused on the synthesis and investigation of the physicochemical and biological properties of silver nanoparticles stabilized with a series of cationic gemini surfactants having a polymethylene spacer ...
Improvement of AZ91 Alloy Corrosion Properties by Duplex NI-P Coating Deposition
(MDPI, 2020-03-17)
The corrosion behavior of duplex Ni-P coatings deposited on AZ91 magnesium alloy was studied. The electroless deposition process of duplex Ni-P coating consisted in the preparation of low-phosphorus Ni-P coating (5.7 wt.% ...
Comparison of Electrochemical Methods for the Evaluation of Cast AZ91 Magnesium Alloy
(MDPI AG, 2016-11-15)
Linear polarization is a potentiodynamic method used for electrochemical characterization of materials. Obtained values of corrosion potential and corrosion current density offer information about material behavior in ...
Nondestructive evaluation of the interface between ceramic coating and stainless steel by electromagnetic method
(IOP Conference Series, 2016-09-02)
Protecting coatings as thermal barrier coating (TBC) are used for yield improvement of equipment working at high temperature. Zirconia doped with yttria ceramics are considered a good TBC material due of its low thermal ...
Biomechanical analysis of front crawl arm stroke and leg kick by Tachograph measuring system
(Ovidius University of Constanta, Faculty of Physical Education and Sport, 2016-05-20)
In our case study contribution we will present the results of crawl technique measurements with the
tachograph measuring method, where we focus on analysing the crawl arms stroke and legs kick. This research ...
Recent advances in the preconcentration and determination of platinum group metals in environmental and biological samples
(Elsevier, 2020-01-01)
Platinum metals enter the environment primarily through the worldwide use of autocatalysts. The metals are released from the catalyst in the form of microparticles and nanoparticles, in elemental form, optionally in the ...