Results 31 to 40 of about 1,562,856 (294)

Quantitative electron probe microanalysis in the system Fe-Sn-C using the Claisse-Quintin relation [PDF]

, 1985
Quantitative interpretation of EPMA measurements was required for the construction of the Fe-Sn-C phase diagram. This involved the conversion of measured x-ray intensities into concentrations, which is difficult for a light element (such as C) being ...
Bishop, Brown, Claisse, Colby, de Jongh, Fisher, Fredriksz, Goldstein, Heinrich, Jenkins, Lachance, Lachance, Parobek, Rao, Rasberry, Rousseau, Tertian, von Rosenstiel, Wood, Ziebold   +19 more
core   +2 more sources

Time domain characterization of the Cole-Cole dielectric model

Journal of Electrical Bioimpedance, 2020
The Cole-Cole model for a dielectric is a generalization of the Debye relaxation model. The most familiar form is in the frequency domain and this manifests itself in a frequency dependent impedance.
Holm Sverre
doaj   +1 more source

A phase-field model for cohesive fracture [PDF]

, 2013
In this paper, a phase-field model for cohesive fracture is developed. After casting the cohesive zone approach in an energetic framework, which is suitable for incorporation in phase-field approaches, the phase-field approach to brittle fracture is ...
Auricchio, Belytschko, Borden, Borst, Borst, Borst, Borst, Bourdin, Bourdin, Bourdin, Camacho, Comi, Fleming, Francfort, Geers, Gravouil, Hofacker, Ingraffea, Miehe, Miehe, Moës, Moës, Mumford, Ngo, Peerlings, Pijaudier-Cabot, Rashid, Remmers, Wells, Xu   +29 more
core   +2 more sources

High speed operation design considerations for fractional slot axial flux PMSM [PDF]

, 2015
This paper discusses intensively the design considerations for the fractional slot axial flux permanent magnet synchronous (AFPMSMs) in order to work efficiently in the constant power speed range, also known as the field weakening (FW) region.
Hemeida, Ahmed, Sergeant, Peter, Taha Elsayed Ahmed Abdelkader, Mohamed   +2 more
core   +2 more sources

A Comparative Study of Two Fractional-Order Equivalent Electrical Circuits for Modeling the Electrical Impedance of Dental Tissues

Entropy, 2020
Background: Electrical impedance spectroscopy (EIS) is a fast, non-invasive, and safe approach for electrical impedance measurement of biomedical tissues.
Norbert Herencsar, Todd J. Freeborn, Aslihan Kartci, Oguzhan Cicekoglu   +3 more
doaj   +1 more source

High-efficiency dual-polarized broadband reflecting metasurface using continuous polarization conversion technique and element with multi degree of freedom

Scientific Reports, 2022
In this study, two effective approaches are combined which are implemented at the element design level and system design level to simultaneously improve the frequency bandwidth and aperture efficiency of a dual-polarized single-layer reflecting ...
Majid Karimipour, Iman Aryanian
doaj   +1 more source

What is the Total Deuterium Abundance in the Local Galactic Disk? [PDF]

, 2006
Analyses of spectra obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite, together with spectra from the Copernicus and IMAPS instruments, reveal an unexplained very wide range in the observed deuterium/hydrogen (D/H) ratios for ...
Blair, William P., Draine, Bruce T., Friedman, Scott D., Gry, Cecile, Jenkins, Edward B., Knauth, David, Kruk, Jeffrey W., Lacour, Sylvestre, Lehner, Nicolas, Linsky, Jeffrey L., Moos, H. W., Oliveira, Cristina, Redfield, Seth, Shull, J. Michael, Sonneborn, George, Williger, Gerard M., Wood, Brian E.   +16 more
core   +4 more sources

Analogue Realization of Fractional-Order Dynamical Systems

Entropy, 2013
As it results from many research works, the majority of real dynamical objects are fractional-order systems, although in some types of systems the order is very close to integer order.
Ladislav Pivka, Ivo Petráš, Ľubomír Dorčák, Juraj Valsa, Ján Terpák, Emmanuel Gonzalez   +5 more
doaj   +1 more source

Aspects of Quasi-Phasestructure of the Schwinger Model on a Cylinder with Broken Chiral Symmetry [PDF]

, 1998
We consider the N_f-flavour Schwinger Model on a thermal cylinder of circumference $\beta=1/T$ and of finite spatial length $L$. On the boundaries $x^1=0$ and $x^1=L$ the fields are subject to an element of a one-dimensional class of bag-inspired ...
Abramowitz, Adam, Banks, Coleman, Coleman, Coleman, Diakonov, Dolan, Dowker, Dürr, Elizalde, Fry, Gattringer, Gradshteyn, Hetrick, Hrasko, Jayewardena, Loewenstein, Merzbacher, Sachs, Schwinger, Shuryak, Smilga, Smilga, Smilga, Stephan Dürr, Wipf   +26 more
core   +2 more sources

Methods for Extension of Tunability Range in Synthetic Inductance Simulators

Elektronika ir Elektrotechnika, 2018
Presented work focuses on methods for the extended electronic control in the designs of inductance simulators based on single-loop feedback topology. Implementation is based on diamond transistors as voltage-to-current converters and two voltage-mode ...
Roman Sotner, Jan Jerabek, Norbert Herencsar, Lukas Langhammer, Jiri Petrzela, Tomas Dostal   +5 more
doaj   +1 more source