Results 41 to 50 of about 124,337 (347)

Electric Field Distribution and Dielectric Losses in XLPE Insulation and Semiconductor Screens of High-Voltage Cables

Energies, 2022
This article presents the electric field distribution E and dielectric losses ΔPdiel. in the insulation system of high-voltage cables. Such a system consists of inner and outer semiconductor screens and XLPE insulation.
Zbigniew Nadolny
doaj   +1 more source

Transmission Losses in Left-handed Materials

, 2002
We numerically analyze the origin of the transmission losses in left-handed structures. Our data confirms that left handed structures can have very good transmission properties, in spite of the expectable dispersion of their effective permeability and ...
C. M. Soukoulis, D.R. Smith, D.R. Smith, D.R. Smith, I. Rousochatzakis, J.B. Pendry, J.B. Pendry, J.B. Pendry, J.B. Pendry, J.B. Pendry, M. Bayindir, N. Garcia, N. Garcia, P. Markoš, P. Markoš, P.M. Valanju, R.A. Shelby, R.A. Shelby, V.G. Veselago   +18 more
core   +1 more source

Dielectric spectroscopy study of thermally-aged extruded model power cables [PDF]

, 2010
“Model” extruded power cables, having a much reduced geometry but using the same extrusion techniques and materials as full-sized cables, have been examined using dielectric spectroscopy techniques to study their thermal ageing effects.
Dissado, L. A., Dodd, S. J., Fothergill, J., Fu, M., Liu, T., Nilsson, U. H., Perrot, F.   +6 more
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Dielectric properties of bismuth titanate ceramics containing SiO2 and Nd2O3 as additives [PDF]

Processing and Application of Ceramics, 2012
Bismuth-titanate ceramics containing SiO2 and Nd2O3 as additives are synthesized by melt quenching method in the system Bi2O3-TiO2-Nd2O3-SiO2 in the temperature range of 1250–1500 °C. The phase composition of the obtained materials is determined by X-ray
Stanislav S. Slavov, Milena Z. Krapchanska, Elena P. Kashchieva, Svetlin B. Parvanov, Yanko B. Dimitriev   +4 more
doaj  

Poynting's theorem for planes waves at an interface: a scattering matrix approach

, 2007
We apply the Poynting theorem to the scattering of monochromatic electromagnetic planes waves with normal incidence to the interface of two different media.
C. Zagoya, Cohen-Tannoudji C., Jackson J. D., M. Martínez-Mares, Marion J. B., Mello P. A., Merzbacher E., Reitz J. R., V. Domínguez-Rocha   +8 more
core   +1 more source

Numerical optimization of hybrid dielectric/HTS resonators for surface impedance evaluation of HTS films [PDF]

, 1999
This work describes an alternative to the traditional dielectric resonator topology used for measuring surface impedance in high temperature superconducting (HTS) films.
Collado Gómez, Juan Carlos, Gonzalo, David, O'Callaghan Castellà, Juan Manuel, Rozan, Edouard, Sans, C   +4 more
core   +4 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Dielectric losses in multi-layer Josephson junction qubits

, 2013
We have measured the excited state lifetimes in Josephson junction phase and transmon qubits, all of which were fabricated with the same scalable multi-layer process.
Gunnarsson, David, Hakonen, Pertti, Li, Jian, Paraoanu, Gheorghe Sorin, Pirkkalainen, Juha-Matti, Prunnila, Mika, Sillanpää, Mika   +6 more
core   +1 more source

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

Advanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji, Monnamme Tlotleng, Samuel Skhosane, Lehlogonolo R. Kanyane, Abimbola P. I. Popoola, Sisa L. Pityana   +5 more
wiley   +1 more source