Zobrazeno 1 - 10
of 34
pro vyhledávání: '"M. Simila"'
Publikováno v:
The Cryosphere, Vol 16, Pp 4363-4377 (2022)
The statistics of ice-ridging signatures were studied using high-resolution (1.25 m) and medium-resolution (20 m) SAR images over the Baltic Sea ice cover, acquired in 2016 and 2011, respectively. Ice surface profiles measured by the 2011 airborne ca
Externí odkaz:
https://doaj.org/article/02d9187504284ff993651e4404efded1
Autor:
Suvi T. M. Simila, Stephen F. Martin
Publikováno v:
Tetrahedron Letters. 49:4501-4504
A convenient synthesis of highly functionalized, α,α-disubstituted amino acid amide derivatives has been accomplished by using cyclic and acyclic ketones as the carbonyl inputs in the Ugi multicomponent reaction. An application of this extension of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a16d714ca4e2d7fa25efd00d55c1edb6
https://doi.org/10.1016/j.tetlet.2008.05.073
https://doi.org/10.1016/j.tetlet.2008.05.073
Autor:
I. Heiler, S. Korhonen, K. Tahvonen, M. Simila, Timo Pyhälahti, Jouni Pulliainen, J.-P. Karna, H. Alasalmi, S. Neuvonen, Y. Laine, J. Karvonen, H. Haapasaari
An automated processing system for SAR (synthetic aperture radar) data and a web user interface for browsing oil spill related cartographic information have been developed to assist oil combating operations. Baltic Oil Response Information System (BO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d11b9bee67706c643f3426b09daeb3a
http://juuli.fi/Record/0284115616
http://juuli.fi/Record/0284115616
Autor:
Stephen F. Martin, Suvi T. M. Simila
Publikováno v:
The Journal of Organic Chemistry. 72:5342-5349
A concise synthesis of the azatricyclic core of FR901483 has been accomplished using a novel strategy that involves a nucleophilic addition to an N-acyl iminium ion, a ring closing metathesis, a diastereoselective hydroboration and a lactone-lactam r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d47610aaf72e772e87adec4f13712a75
https://doi.org/10.1021/jo070732a
https://doi.org/10.1021/jo070732a
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 45:1131-1141
We have compared the time series of C-band HH-polarization backscattering coefficients (sigmadeg) of the Baltic Sea land-fast level ice with results from a 1-D high-resolution thermodynamic snow/ice model (HIGHTSI). The sigmadeg time series were obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9067ffd0aeee0fccab144377ebf5ae8b
https://doi.org/10.1109/tgrs.2007.893735
https://doi.org/10.1109/tgrs.2007.893735
Publikováno v:
Tetrahedron Letters. 47:2933-2936
A concise synthesis of the azatricyclic core structure of FR901483, a potent immunosuppressant, has been accomplished. The key elements of the approach involve a nucleophilic addition to an acyl iminium ion, a ring closing metathesis and a lactone–
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaccd06afa2db4ce74dce71128abcaf8
https://doi.org/10.1016/j.tetlet.2006.02.116
https://doi.org/10.1016/j.tetlet.2006.02.116
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 2:275-279
An algorithm for open water and sea ice discrimination for Radarsat-1 ScanSAR images is presented. The algorithm is based on segmentation and local synthetic aperture radar signal intensity autocorrelation. The algorithm performance is evaluated by c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::280660b96a7e1f2c16d80165879ee081
https://doi.org/10.1109/lgrs.2005.847930
https://doi.org/10.1109/lgrs.2005.847930
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 40:2593-2605
Incidence angle dependence of three statistical parameters-the mean of the backscattering coefficient (/spl sigma//spl deg/), standard deviation, and autocorrelation coefficient of texture (/spl sigma//sub T/ and /spl rho//sub T/)-of the C-band horiz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8936553b2344d162d7901651ffa45b8e
https://doi.org/10.1109/tgrs.2002.806991
https://doi.org/10.1109/tgrs.2002.806991
Autor:
M. Simila, J. Karvonen
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 40:2464-2485
A wavelet-transform-based algorithm for sea ice synthetic aperture radar (SAR) image data compression is presented. Compression of the relatively low resolution (100 m) SAR data is necessary to enable the transmission of such images from the Finnish
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9394359e5c76adeaeba8c79b0994975b
https://doi.org/10.1109/tgrs.2002.805068
https://doi.org/10.1109/tgrs.2002.805068
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 39:1586-1595
For sea ice in the Baltic Sea, surface scattering can be regarded as the dominant scattering mechanism at C-band. In this paper, a new statistical method is introduced for making statistical inferences about the underlying ice surface roughness on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ac87d7ca5e0914bdcd5ccb2787ac633
https://doi.org/10.1109/36.934090
https://doi.org/10.1109/36.934090