Zobrazeno 1 - 10
of 41
pro vyhledávání: '"J. Valdmanis"'
Autor:
I. Barmina, A. Lickrastina, M. Purmalis, M. Zake, R. Valdmanis, J. Valdmanis, A. Arshanitsa, V. Solodovnik, G. Telisheva
Publikováno v:
Chemical Engineering Transactions, Vol 29 (2012)
Combustion characteristics of microwave (2.45 GHz) pre-treated biomass (wood) pellets are investigated experimentally with the aim to find out the effect of pellets pre-treatment on the biomass composition and the feasibility of their thermo-chemical
Externí odkaz:
https://doaj.org/article/7a652ec920be4fc7871aaf5cdcad1aa7
Publikováno v:
Magnetohydrodynamics. 51:311-320
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d19ddf8d7100dfd026b8f62ea4ad14ed
https://doi.org/10.22364/mhd.51.2.15
https://doi.org/10.22364/mhd.51.2.15
Autor:
Inesa Barmina, Alexandr Arshanitsa, V. Solodovnik, Galina Telysheva, Raimonds Valdmanis, M. Zaķe, A. Līckrastiņa, J. Valdmanis
Publikováno v:
Latvian Journal of Physics and Technical Sciences, Vol 50, Iss 4, Pp 34-47 (2013)
To effectively produce clean heat energy from biomass, microwave (mw) pre-processing of its different types - pelletized wood (spruce), herbaceous biomass (reed canary grass) and their mixture (50:50) - was carried out at the 2.45 GHz frequency with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39daf3e59f6ddcfb86a16c0652ed1f4e
https://doaj.org/article/c183774c7e6f4b68b01ffb577add9bd0
https://doaj.org/article/c183774c7e6f4b68b01ffb577add9bd0
Publikováno v:
IEEE Photonics Technology Letters. 9:812-814
Nonlinearity measurements of microwave-bandwidth InGaAs metal-semiconductor-metal photodetectors have been performed. The devices show nonlinear characteristics which are similar to p-i-n structures despite a less-uniform electric field within the ab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0bf9a03bf6a68fe5392d2c6350384d7
https://doi.org/10.1109/68.584999
https://doi.org/10.1109/68.584999
Autor:
J. Valdmanis, J. Bull
Publikováno v:
Proceedings of the 1986 IEEE Third Working Conference on Current Measurement.
As part of the joint US/Canada Upper Great Lakes Connecting Channel (UGLCC) field measurement study, nine Nell Brown 'Smart' Acoustic Current Meters (SACM's) were deployed in Lake St. Clair over the period June to November, 1985. Each of the current
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca7e63d8bbd5618fec2c7b912d626912
https://doi.org/10.1109/ccm.1986.1158473
https://doi.org/10.1109/ccm.1986.1158473
Publikováno v:
Proceedings of Optical Fiber Communication Conference.
The use of 200-mW low-noise lasers in externally modulated fiber-optic links can increase the link dynamic range and reduce the noise figure by 10 dB per current decade above 1 mA. To realize this, these systems require high-speed MSM photodetectors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66c5fd1054af64b771b9dbffd9ee3e69
https://doi.org/10.1109/ofc.1997.719673
https://doi.org/10.1109/ofc.1997.719673
Publikováno v:
Transfer Phenomena in Magnetohydrodynamic and Electroconducting Flows ISBN: 9789401060028
An induction magnetohydrodynamic (MHD) pump based on the principle of creating an alternating traveling magnetic field by system of rotating permanent magnets has been designed for pumping of liquid Wood’s metal alloy through a vertical loop. The r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e8d10346eeba5d71b63b6147318f22f
https://doi.org/10.1007/978-94-011-4764-4_27
https://doi.org/10.1007/978-94-011-4764-4_27
Autor:
E. Leith, C. Chen, H. Chen, Y. Chen, D. Dilworth, J. Lopez, P.-C. Sun, M. Shih, J. Valdmanis, G. Vossler
Publikováno v:
Optical Society of America Annual Meeting.
Several methods of electronic holography for imaging through scattering media, especially biological tissue, are described. The methods employ short pulses, noise modulated waveforms with narrow autocorrelation functions, light of reduced spatial coh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c73a0e08d2e003b995df9c0f80c6d39
https://doi.org/10.1364/oam.1992.wf1
https://doi.org/10.1364/oam.1992.wf1
Publikováno v:
Optical Society of America Annual Meeting.
We describe a method for imaging of opaque objects embedded in highly scattering media, such as human tissue. The method is based on electronic holography, in which a hologram is formed on the surface of a CCD camera, the hologram is read into a comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b71b79be2b81d57e1129f423cec8cd9a
https://doi.org/10.1364/oam.1991.mz7
https://doi.org/10.1364/oam.1991.mz7
Autor:
I. Berson, J. Valdmanis
Publikováno v:
Journal of Mathematical Physics. 14:1481-1484
The motion of the electron in the classical as well as in the quantized field of two circularly polarized waves which move in opposite directions is investigated. The spin characteristics of the electron are neglected and it is assumed that the elect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98a24afcf2fb98e98327916fd2b805ea
https://doi.org/10.1063/1.1666209
https://doi.org/10.1063/1.1666209