Results 21 to 30 of about 186,760 (193)

Three Dimensional Electrical Impedance Tomography [PDF]

, 1996
The electrical resistivity of mammalian tissues varies widely and is correlated with physiological function. Electrical impedance tomography (EIT) can be used to probe such variations in vivo, and offers a non-invasive means of imaging the internal ...
A Albert, AM Dijkstra, B. H. Brown, BH Brown, BH Brown, CJ Kotre, D. C. Barber, DA Witsoe, DB Geselowitz, DC Barber, DC Barber, DC Barber, DC Barber, DC Barber, DS Holder, ET McAdams, FA Duck, GH Golub, J Goble, JP Morucci, KS Rabbani, LA Geddes, P. Metherall, PC Hansen, R Pethig, R. H. Smallwood, RD Stoy, SG Dawids   +27 more
core   +1 more source

MHD waves at a spherical interface modelling coronal global EIT waves [PDF]

, 2007
Energetically eruptive events such as flares and coronal mass ejections (CMEs) are known to generate global waves, propagating over large distances, sometimes comparable to the solar radius.
Douglas, M., Ballai, I.
core   +3 more sources

EIT ground-state cooling of long ion strings [PDF]

, 2016
Electromagnetically-induced-transparency (EIT) cooling is a ground-state cooling technique for trapped particles. EIT offers a broader cooling range in frequency space compared to more established methods.
Blatt, R., Brownnutt, M., Hempel, C., Jurcevic, P., Lanyon, B. P., Lechner, R., Maier, C., Monz, T., Roos, C. F.   +8 more
core   +2 more sources

Measurements of vector magnetic field using multiple electromagnetically induced transparency resonances in Rb vapor [PDF]

, 2010
We study intensity distribution of transmission resonances under the conditions of electromagnetically induced transparency (EIT) with lin||lin configuration in 87Rb vapor.
Alexey V. Taichenachev, Eugeniy E. Mikhailov, Irina Novikova, J. Clarke, Kevin Cox, Valery I. Yudin   +5 more
core   +3 more sources

Mathematical lung model for local gas exchange based on EIT-measurements

Current Directions in Biomedical Engineering, 2022
In this work we present a four compartment mathematical lung model to simulate the local gas exchange based on electrical impedance tomography (EIT) input.
Hennigs Carlotta, Becher Tobias, Rostalski Philipp   +2 more
doaj   +1 more source

Electromagnetically induced spatial light modulation [PDF]

, 2008
We theoretically report that, utilizing electromagnetically induced transparency (EIT), the transverse spatial properties of weak probe fields can be fast modulated by using optical patterns (e.g.
Akamatsu, Allen, Barreiro, Barreiro, Beijersbergen, Brand, Brand, Chen, Chen, Curtis, Dashti, Fatemi, Fleischhauer, Fleischhauer, Grier, Harris, Heckenberg, L. Zhao, Lukin, Mair, Molina-Terriza, S. F. Yelin, Schmidt, T. Wang   +23 more
core   +1 more source

Mechanical and water-absorption properties of sisal fiber (Agave sisalana)-reinforced polyester composite

Journal of Natural Fibers, 2019
Mechanical and water-absorption properties of composites made from sisal fiber and polyester matrix have been investigated. Test specimens were prepared with untreated fiber and treated with alkaline solution of sodium hydroxide.
Agernew Melkamu, Mulu Bayray Kahsay, Abrha Gebregergs Tesfay   +2 more
doaj   +1 more source

Narrowing of EIT resonance in a Doppler Broadened Medium [PDF]

, 2001
We derive an analytic expression for the linewidth of EIT resonance in a Doppler broadened system. It is shown here that for relatively low intensity of the driving field the EIT linewidth is proportional to the square root of intensity and is ...
A. Karawajczyk, A. Nagel, A. S. Zibrov, A. Szoke, A. V. Taichenachev, Ali Javan, B. J. Feldman, B. S. Ham, D. Budker, D. Budker, D. Z. Wang, E. Arimondo, G. Vemuri, G. Vemuri, Hwang Lee, K. Hakuta, L. V. Hau, M. D. Lukin, M. Fleischhauer, M. Jain, M. M. Kash, M. O. Scully, M. S. Field, M. Xiao, Marlan O. Scully, O. Schmidt, Olga Kocharovskaya, P. R. Hemmer, R. A. McFarlane, S. Brandt, S. E. Harris, T. Popova, T. W. Hänsch, W. R. Bennett, Y. Li   +34 more
core   +3 more sources

Enhancing sharp features by locally relaxing regularization for reconstructed images in electrical impedance tomography

Journal of Electrical Bioimpedance, 2019
Image reconstruction in EIT is an inverse problem, which is ill posed and hence needs regularization. Regularization brings stability to reconstructed EIT image with respect to noise in the measured data.
Ranade Nanda V., Gharpure Damayanti C.
doaj   +1 more source

Design of a miniaturized wearable EIT system for imaging and hand gesture recognition

Current Directions in Biomedical Engineering, 2023
Hand gesture recognition using data from electrical impedance tomography (EIT) systems offers many promising applications, for example in the field of human-computer interaction. Due to its real-time capability and the use of harmless currents for humans,
Liebing Tom, Kähler Dennis, Kern Thorsten A.   +2 more
doaj   +1 more source