Results 111 to 120 of about 113,750 (288)

The electronic transport properties and microstructure of carbon nanofiber/epoxy composites

, 2008
Carbon nanofibres (CNF) were dispersed into an epoxy resin using a combination of ultrasonication and mechanical mixing. The electronic transport properties of the resulting composites were investigated by means of impedance spectroscopy.
A. Allaoui, Allaoui, Choi, Connor, Dyre, Gauthier, Holm, Holm, Kirkpatrick, Kotaki, Lee, Liang, M.D. Pugh, Miyagawa, Miyagawa, S.V. Hoa, Simmons, Sommerfeld, Song, Stauffer, Tibbetts, Ubbelohde, Xu, Zhong   +23 more
core   +1 more source

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

Advanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser, Felix Drechsler, Nora Brachhold, Florian Kerber, Christos G. Aneziris   +4 more
wiley   +1 more source

Equivalent Circuit Models and Analysis of Electrochemical Impedance Spectra of Caffeine Solutions and Beverages

International Journal of Electrochemical Science, 2016
In this study, a non-faradaic electrochemical impedance spectroscopy has been employed for estimation of caffeine concentration in beverages. Impedance spectra were recorded by using a two electrode system without adding any redox reagents in the ...
Gourav Bhattacharya, Ashish Mathur, Srikanta Pal, James McLaughlin, Susanta Sinha Roy   +4 more
doaj   +1 more source

Stress effect on magnetoimpedance (MI) in amorphous wires at GHz frequencies and application to stress-tunable microwave composite materials

, 2004
The effect of tensile stress on magnetoimpedance (MI) in CoMnSiB amorphous wires at microwave frequencies (0.5-3 GHz) is investigated both experimentally and theoretically.
Chiriac H., Cobeno A. F., D. P. Makhnovskiy, Hauser H., L. V. Panina, S. I. Sandacci   +5 more
core   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Methodology for integrated analysis of vector- and spectroscopic bioimpedance methods

Journal of Electrical Bioimpedance
Electrical bioimpedance is based on the opposition exerted by body tissues to the passage of an electrical current. This characteristic allows the assessment of the individual's body composition, nutritional status, and hydration status.
Bello José Luis García, Lafargue Alcibiades Lara, Ciria Héctor Camué, Luna Taira Batista, Leyva Yohandys Zulueta   +4 more
doaj   +1 more source

Electrical Impedance Spectroscopy for Tissue Classification

Carleton Undergraduate Journal of Science
This study utilized electrical impedance spectroscopy (EIS) techniques for classifying various types of ex-vivo biological tissues.  To conduct this research, a quantity of five 20x20x20 mm specimens per tissue type was used for collecting impedance data.
Elizabeth John, Carlos Rossa, Conor McDermott   +2 more
openaire   +1 more source

Parameter Variation in Planetary Ball Milling of Titanium Aluminide Powder in XHV‐Adequate Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann, Armin Piwek, Julius Peddinghaus, Kai Brunotte, Bernd-Arno Behrens   +4 more
wiley   +1 more source

Electrical impedance spectroscopy on biological barriers

, 2022
Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2022; Aachen, Aachener Verfahrenstechnik Series AVT.CVT - Chemical Process Engineering 26, 1 Online-Ressource : Illustrationen, Diagramme (2022).
openaire   +3 more sources

Microstructure Design of Steel‐Spinel Composites via Spark Plasma Sintering Process

Advanced Engineering Materials, EarlyView.
This study illustrates how spark plasma sintering at reduced oxygen partial pressure enables controlled formation of steel‐spinel composites through tailored redox reactions and cation exchange. Comparison of the MgO–Fe2O3, steel–(MgO+Cr2O3), and steel–(MgO+Fe2O3) systems shows how oxygen activity and interface chemistry govern spinel formation, phase ...
Mahnaz Mehdizadehlima, Christian Schimpf, Stefan Martin, Olga Fabrichnaya, David Rafaja   +4 more
wiley   +1 more source