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Tytuł:
Selective Resonance Raman Scattering of Peierls-Hubbard (TTF$\text{}^{+}$)$\text{}_{2}$ Dimers in (TTF)$\text{}_{2}$Mo$\text{}_{6}$O$\text{}_{19}$ and (TTF)$\text{}_{2}$W$\text{}_{6}$O$\text{}_{19}$ Salts
Autorzy:
Kruszewski, S.
Feltre, L.
Bozio, R.
Bellitto, C.
Powiązania:
https://bibliotekanauki.pl/articles/1929169.pdf
Data publikacji:
1993-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
34.70.+e
78.30.-j
Opis:
Raman investigation of Peierls-Hubbard (TTF$\text{}^{+}$)$\text{}_{2}$ dimers in (TTF)$\text{}_{2}$Mo$\text{}_{6}$O$\text{}_{19}$ and (TTF)$\text{}_{2}$W$\text{}_{6}$O$\text{}_{19}$ salts have been performed. It was found that the resonance enhancement of Raman intensity of intramolecular vibration modes exists only when the frequency of excitation light fits to the localised electron transition, however, the resonance enhancement of intermolecular modes occurs when the frequency of excitation light corresponds to the charge transfer transition.
Źródło:
Acta Physica Polonica A; 1993, 83, 4; 431-440
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Odszedł z klanu chorych na wolną Polskę : Tadeusz Andrzej Głowacki (1917-2001)
Autorzy:
Kruszewski, Eugeniusz S.
Powiązania:
Archiwum Emigracji 2001, z. 4, s. 267-268
Data publikacji:
2001
Tematy:
Głowacki, Tadeusz Andrzej (1917-2001) biografia
Sztokholm. Pomnik Katyński
Kampania wrześniowa łączność biografie
Obrona Helu (1939)
Opis:
Radiotelegrafista w sztabie Dowództwa Floty kontradmirała J. Unruga na Helu we wrześniu 1939 r. Twórca pomnika katyńskiego w Sztokholmie.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Odszedł z klanu chorych na wolną Polskę : Tadeusz Andrzej Głowacki (1917-2001)
Autorzy:
Kruszewski, Eugeniusz S.
Powiązania:
Archiwum Emigracji 2001, z. 4, s. 267-268
Data publikacji:
2001
Tematy:
Głowacki, Tadeusz A.
Głowacki Tadeusz A. (1917-2001) biografia
Sztokholm. Pomnik Katyński
Kampania wrześniowa łączność biografie
Polacy za granicą Szwecja od 1944 r.
Obrona Helu (1939)
Biografia
Opis:
Radiotelegrafista w sztabie Dowództwa Floty kontradmirała J. Unruga na Helu we wrześniu 1939 r. W l. 1944-1946 w ataszacie wojskowym Poselstwa RP w Sztokholmie. Twórca pomnika katyńskiego w Sztokholmie.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Wpływ zmian temperatury powierzchni oceanu na Morzu Norweskim na temperaturę powietrza na Svalbardzie i Jan Mayen (1982-2002)
The influence of the changes in sea surface temperature of the Norwegian Sea on the air temperature at Svalbard and Jan Mayen (1982-2002)
Autorzy:
Kruszewski, G.
Marsz, A. A.
Zblewski, S.
Powiązania:
https://bibliotekanauki.pl/articles/260931.pdf
Data publikacji:
2003
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatury powietrza
temperatury powierzchni oceanu
Morze Norweskie
air temperature
sea surface temperature
Norwegian Sea
Opis:
This work deals with correlations between SST in the Norwegian Sea and air temperature at selected stations located in the Atlantic sector of Arctic (Bjornoya, Hornsund, Svalbard-Lufthavn, Ny Alesund and Jan Mayen). The southern and central parts of the Norwegian Sea show the strongest correlation with the air temperature at the above mentioned stations, whereas the northern parts of this sea show weaker correlation. Apart from synchronic correlations (occurring in the same months) asynchronic correlations have been found. The latter are generally much stronger than the synchronic ones. The predominant influence on the changes in air temperature at the stations have the winter SST (JFMA) in the central part of the Norwegian Sea (grid 2° x 2°, 67°N, 010°E). These winter SST show quite strong correlations with monthly air temperature at Bjornoya, Hornsund, Svalbard-Lufthavn and Jan Mayen in July, August and September. At Ny Alesund station the period with statistically significant correlation between the air temperature and the winter SST is limited to September. The strongest correlation can be observed in August (see Table 4). The observed correlations result from modification in atmospheric circulation, caused by increased heat volume in the Norwegian Sea. Such modification is reflected in the increased frequency of occurrence of meridional atmospheric circulation, which is accompanied by the increase in the frequency of air advection from the S to this sector of Arctica. Some correlations which show more significant time shift have also been observed (see Table 5). Winter SST indicate positive correlations with air temperature observed at Bjornoya and Horn-sund in August and September the following year and at Svalbard-Lufthavn in September. At Ny Alesund station the coefficients of correlation with the air temperature in the following year are increased but they do not reach the statistically significant level. Another period with statistically significant correlations is November and December the following year; significant correlations with winter SST occur at Bjornoya (r = 0.71) and all stations located on Spitsbergen (r = 0.57). The correlations of SST with air temperature observed at Jan Mayen the following year are different, i.e. the presence of strong correlations is limited to summer season - July, August and September (r ~ 0.6). The correlations with winter SST occurring in November and December the following year is connected with warm masses carried to this region together with waters with the West Spitsbergen Current. Correlations between SST and air temperature present in summer and at the end of summer the following year may probably be influenced by the modification of atmospheric circulation. The only significant correlation with summer (July and August) SST indicates the temperature of February the following year at stations located on Spitsbergen and Jan Mayen. These correlations are negative (r ~ -0.55 - -0.50). The reason for occurrence of such correlations is not clear. The changeability of winter SST in the central part of the Norwegian Sea explains from 20% (Hornsund) to 32% (Bjornoya) of changeability in annual air temperature at the above mentioned stations in the same year and from 34% (Jan Mayen) to 41% (Hornsund) of changeability in annual air temperature in the following year. The increased level of explanation of changeability in air temperature the following year influenced by winter SST is connected with the delayed flowing of the Atlantic waters to high latitudes carried with the Norwegian Current and the West Spitsbergen Current.
Źródło:
Problemy Klimatologii Polarnej; 2003, 13; 59-78
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhancement of FITC Fluorescence by Silver Colloids and Silver Island Films
Autorzy:
Kruszewski, S.
Wybranowski, T.
Cyrankiewicz, M.
Ziomkowska, B.
Pawlaczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/1812349.pdf
Data publikacji:
2008-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.20.Fb
33.20.Kf
33.50.-j
Opis:
Silver colloids and silver island films as fluorescence enhancement systems are the subject of this paper. Enhancement of fluorescence of molecules placed near metallic nanoparticles is a result of resonance interaction of exciting and emitted lights with surface plasmons. Two models explaining this phenomenon are presented. Processes of silver colloids and silver island films forming are described. Results of extinction, absorption and scattering studies of fluorescence enhancement systems are presented. The influence of these systems, i.e. silver colloids and silver island films on the fluorescence of fluorescein-5-isothiocyanate was studied. 7-fold increase in fluorescence intensity of fluorescein-5-isothiocyanate molecules placed near silver nanoparticles was observed.
Źródło:
Acta Physica Polonica A; 2008, 113, 6; 1599-1608
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Første danske lektor ved Poznań universitet
Autorzy:
Kruszewski, Eugeniusz S.
Powiązania:
https://bibliotekanauki.pl/articles/1177482.pdf
Data publikacji:
2009-01-01
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Ingeborg von Stemann
dansk lektor i Poznan
Opis:
The Dane Ingeborg von Stemann (1889-1973) took a genuine interest in Poland’s fate. She familiarised herself with the history of the Polish nation, was fascinated by Polish culture and learned the language. Poznań, an intellectual centre, developed a fruitful scientific and political cooperation with Denmark and Sweden in the 19th century. As a result of this cooperation, courses in Scandinavian languages were initiated after Poland regained independence in 1918 and the University of Poznań was founded in 1919. Ingeborg von Stemann, who rendered great services to independent Poland, was appointed the first instructor of Scandinavian languages at Poznań University in 1920.
Źródło:
Folia Scandinavica Posnaniensia; 2009, 10; 37-46
1230-4786
2299-6885
Pojawia się w:
Folia Scandinavica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fluorescence Spectroscopy in Camptothecins Studies
Autorzy:
Kruszewski, S.
Kruszewska, D.
Powiązania:
https://bibliotekanauki.pl/articles/1537476.pdf
Data publikacji:
2010-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.64.kv
87.15.kp
Opis:
The application of fluorescence spectroscopy methods to determining the properties of analogues of camptothecin, promising anticancer agents, are described in this paper. The fluorescence anisotropy measurements provide useful information about the binding of camptothecin and its analogues to cell membranes and human serum albumin (HSA) that is important for potential clinical applications of these agents, and permit the selection from many camptothecin analogues those ones exhibiting desirable biomedical properties. Fluorescence anisotropy measurements prove that 3 new camptothecin analogues: 7-tert-butyldimethylsilyl-10-hydroxy-campthothecin, 7-trimethyl-silylethyl-10-hydroxy-camptothecin and 7-trimethyl-silyl-ethyl-10-amino-camptothecin exhibit high affinity of their lactone forms to membranes and low affinity of their carboxylate forms to HSA. Such properties should ensure high stability of these agents in physiological fluids, including blood.
Źródło:
Acta Physica Polonica A; 2010, 118, 1; 99-102
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Activation of Silver Colloids for Enhancement of Raman Scattering
Autorzy:
Kruszewski, S.
Cyrankiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1504412.pdf
Data publikacji:
2011-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.20.Fb
33.20.Kf
62.23.St
82.70.Dd
Opis:
Obtaining of systems that provide ever-increasing enhancement of the Raman scattered light is a big challenge. The silver colloids obtained by reduction of silver nitrate by trisodium citrate are the most promising enhancement systems. Nanoparticles of silver forming fresh colloid obtained by this way exhibit in extinction spectrum the absorption band proving of the surface plasmons excitation, but do not enhance the Raman scattered light, are not surface enhanced Raman scattering active. Adding of KCl or $HNO_3$ causes the surface enhanced Raman scattering activation, i.e. causes that the conditions for aggregation of nanoparticles and for adsorption on their surface of molecules providing Raman scattering are created. Increasing amount of added KCl or $HNO_3$ leads to significant changes in the extinction spectrum and to significant increase in intensity of surface enhanced Raman scattering. The observed changes in extinction spectrum are mainly due to progressive aggregations of nanoparticles. In junctions between nanoparticles existing inside aggregates the condition for single molecule surface enhanced Raman scattering are fulfilled and therefore aggregation leads to increase in average surface enhanced Raman scattering intensity. Silver colloid activated by using KCl provides about 10-fold higher surface enhanced Raman scattering than that treated with $HNO_3$.
Źródło:
Acta Physica Polonica A; 2011, 119, 6A; 1018-1022
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 29

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