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Wyszukujesz frazę "CS" wg kryterium: Temat


Tytuł:
Radiative Lifetimes of Rydberg States in Neutral Gallium
Autorzy:
Yildiz, M.
Çelık, G.
Kiliç, H.
Powiązania:
https://bibliotekanauki.pl/articles/1808090.pdf
Data publikacji:
2009-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.Cs
Opis:
Radiative lifetimes were calculated using weakest bound electron potential model theory for $4s^{2}$ ns $\text{}^{2}S_{1//2}$ (n ≥ 7), $4s^{2}$ np $\text{}^{2}P^{0}_{1//2}$ (n ≥ 5), $4s^{2}$ np $\text{}^{2}P$ $\text{}^{0}_{3//2}$ (n ≥ 6), $4s^{2}$ nd $\text{}^{2}D_{3//2}^{0}$ (n ≥ 6), $4s^{2}$ nd $\text{}^{2}D$ $\text{}_{5//2}^{0}$ (n ≥ 6) series in neutral gallium. The use of the quantum defect theory and Martin's expressions allowed us to supply lifetime values along by means of the series above. The results obtained in this work presented good agreement with theoretical and experimental values. Moreover, some lifetime values not existing in the literature for highly excited Rydberg states in gallium atom were obtained using this method.
Źródło:
Acta Physica Polonica A; 2009, 115, 3; 641-646
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spectral Intensities for the Emission |$\text{}^{4}$S$\text{}_{3}\text{}_{/}\text{}_{2}$ Γ$\text{}_{8}$〉 → |$\text{}^{4}$I$\text{}_{15}\text{}_{/}\text{}_{2}$ Γ〉in the Cs$\text{}_{2}$NaErCl$\text{}_{6}$
Autorzy:
Acevedo, R.
Soto-Bubert, A.
Navarro, G.
Meruane, T.
Stręk, W.
Powiązania:
https://bibliotekanauki.pl/articles/2037134.pdf
Data publikacji:
2004-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.Cs
Opis:
We report explicit vibronic intensity calculations for the |$\text{}^{4}$S$\text{}_{3}\text{}_{/}\text{}_{2}$ Γ$\text{}_{8}$> → |$\text{}^{4}$I$\text{}_{15}\text{}_{/}\text{}_{2}$ Γ>excitations in the Cs$\text{}_{2}$NaErCl$\text{}_{6}$ elpasolite-type systems, based upon new and updated experimental data, obtained from optical absorption measurements made at 10 K, in the energy range from 6,000 up to 26,000 cm$\text{}^{-1}$. Our calculation model is a generalization of the vibronic crystal field-ligand polarization method and the calculation is performed using a minimum set of adjustable parameters - all and each of them have a clear physical meaning. Our strategy was chosen so as to make a significant distinction with previous calculations, performed by other authors, who have worked out a model originated from a supra-parameterized scheme, within the framework of the superposition model of Newman. Throughout the course of the current work, it is shown that our model is suitable to handle this kind of calculations and also that the numerical results obtained are in fairly good agreement with experiment.
Źródło:
Acta Physica Polonica A; 2004, 105, 3; 233-251
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the relation between the dissolved 137cs activity and the simulated salinity in the lithuanian coastal waters
Autorzy:
Davuliene, L.
Valkünas, L.
Trinkünas, G.
Powiązania:
https://bibliotekanauki.pl/articles/972868.pdf
Data publikacji:
2001
Wydawca:
Instytut Morski w Gdańsku
Tematy:
Cs activity
salinity
Opis:
In May 2000 the hydrodynamic model developed at the Federal Maritime and Hydrographic Agency in Hamburg. Germany was adopted to the Lithuanian part of the Baltic Sea. I nm grid is chosen. Comparison of measurements (1999.05.15) with the real time simulations of the particular period showed that in general, in the modelled area. the simulated salinity was higher than measured with most differences in the coastal zone. Average salinity distributions and the distribution of salinity standard deviations were analysed. The coastal area of 15 nm from the seashore, especially to the north of the Klaipeda Strait, is distinguished by the highest variance of the salinity. The relation between the salinity and the dissolved 137 Cs activity concentration was observed. However, 137 Cs activity bursts 1.5-2 times higher at the coast than the average, cannot be explained and are more likely to be related to the uplifted particulate matter.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 2001, 28, 2; 49-54
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the relation between the dissolved 137cs activity and the simulated salinity in the lithuanian coastal waters
Autorzy:
Davuliene, L.
Valkünas, L.
Trinkünas, G.
Powiązania:
https://bibliotekanauki.pl/articles/1920636.pdf
Data publikacji:
2001
Wydawca:
Instytut Morski w Gdańsku
Tematy:
Cs activity
salinity
Opis:
In May 2000 the hydrodynamic model developed at the Federal Maritime and Hydrographic Agency in Hamburg. Germany was adopted to the Lithuanian part of the Baltic Sea. I nm grid is chosen. Comparison of measurements (1999.05.15) with the real time simulations of the particular period showed that in general, in the modelled area. the simulated salinity was higher than measured with most differences in the coastal zone. Average salinity distributions and the distribution of salinity standard deviations were analysed. The coastal area of 15 nm from the seashore, especially to the north of the Klaipeda Strait, is distinguished by the highest variance of the salinity. The relation between the salinity and the dissolved 137 Cs activity concentration was observed. However, 137 Cs activity bursts 1.5-2 times higher at the coast than the average, cannot be explained and are more likely to be related to the uplifted particulate matter.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 2001, 28, 2; 49-54
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New technologies for decontamination of radioactive substances scattered by nuclear accident
Nowe technologie dekontaminacji radioaktywnych substancji rozproszonych przez awarię nuklearną
Autorzy:
Nishizaki, Y.
Miyamae, H.
Ichikawa, S.
Izumiya, K.
Takano, T.
Kumagai, N.
Hashimoto, K.
Powiązania:
https://bibliotekanauki.pl/articles/351190.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
awaria nuklearna
rozproszone substancje radioaktywne
spalarnia odpadów
akumulacja Cs
odpady radioaktywne
adsorpcja cezu
nuclear accident
scattered Cs
waste incineration facility
Cs accumulation
Cs decontamination
radioactive waste
Opis:
Our effort for decontamination of radioactive cesium scattered widely by nuclear accident in March 2011 in Fukushima, Japan has been described. Radioactive cesium scattered widely in Japan has been accumulating in arc or plasma molten-solidified ash in waste incinerating facilities up to 90,000 Bq/kg of the radioactive waste. Water rinsing of the ash resulted in dissolution of cesium ions together with high concentrations of potassium and sodium ions. Although potassium inhibits the adsorption of cesium on zeolite, we succeeded to precipitate cesium by in-situ formation of ferric ferrocyanide and iron rust in the radioactive filtrate after rinsing of the radioactive ash with water. Because the regulation of no preservation of any kind of cyanide substances, cesium was separated from the precipitate consisting of cesium-captured ferric ferrocyanide and ferric hydroxide in diluted NaOH solution and subsequent filtration gave rise to the potassium-free radioactive filtrate. Cesium was captured by zeolite from the potassium-free radioactive filtrate. The amount of this final radioactive waste of zeolite was significantly lower than that of the arc-molten-solidified ash.
Opisano wysiłki podjęte po awarii nuklearnej w marcu 2011 w Fukushimie, Japonia. Radioaktywny cez rozproszony na znacznym obszarze Japonii jest akumulowany do poziomu 90,000 Bq/kg w spalarniach śmieci w procesie stapiania w łuku plazmy radioaktywnych śmieci. Przemywanie wodą popiołów powoduje wymywanie radioaktywnego cezu wraz ze znacznymi ilościami potasu i sodu. Ponieważ potas inhibituje adsorpcję cezu na zeolitach, udało się stracić cez w postaci kompleksu z żelazo żelazicyjankiem oraz tlenków żelaza w przesączu po przemywaniu radioaktywnego popiołu. Ustawodawstwo zakazuje przechowywania jakiejkolwiek substancji zawierającej grupę cyjanową, dlatego otrzymany osad rozpuszczono stosując rozcieńczony NaOH. Ponowna filtracja doprowadziła do uzyskania radioaktywnego przesączu nie zawierającego jonów potasu. Następnie radioaktywny cez został zaadsorbowany na zeolitach. Końcowa ilość radioaktywnych zeolitów była znacząco mniejsza od popiołów.
Źródło:
Archives of Metallurgy and Materials; 2013, 58, 1; 283-290
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sediment accumulation rates in the gotland deep, Baltic proper obtained by 210 Pb and 137 Cs Methods
Szybkość sedymentacji powierzchniowych osadów bałtyckich zmierzona przy użyciu 210 Pb i 137 Cs
Autorzy:
Szczepańska, A.
Zaborska, A.
Pempkowiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/1819821.pdf
Data publikacji:
2009
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
sedymentacja
metoda 210 Pb o 137 Cs
sedimentation
Pb and 137 Cs methods
Opis:
Geochronology of sediments has important contribution to limnology and geochemistry including studies of accelerated eutrophication or regional erosion rates. It is also widely used to determine recent history of anthropogenic pollution and material balance [2]. Several different methods may be used to determine the ages of sediment layers. Historically, chronology has been based on qualitative methods such as stratigraphy, tectonics and morphology. However, the best results are obtained by means of radiometric dating, based on radioactive element activity e.g. radiocarbon, thorium, radiolead [11, 13].
Metoda ołowiowa jest powszechnie używana do oznaczania wieku osadów. Dodatkowo pozwala ona lepiej zrozumieć procesy geochemiczne zachodzące w osadach. W celu poprawy jakości wyników metodę ołowiową weryfikuję się używając 137 Cs. Poniższy artykuł dotyczy porównania szybkości sedymentacji osadów uzyskanych przy pomocy metody ołowiowej (model CRS- Constant Rate of Supply) z wynikami uzyskanymi za pomocą 137 Cs. Obliczenia wykonane zostały dla dwóch osadów pobranych z Głębi Gotlandzkiej. Wyznaczone metodą ołowiową wartości współczynników sedymentacji (0,7 mm/rok dla I stacji i 0,5 mm/rok dla II stacji) były niższe od współczynników sedymentacji obliczonych za pomocą 137 Cs (1,5 mm/rok dla I stacji i 1,7 mm/rok dla II stacji). Rozbieżność była spowodowana mieszaniem powierzchniowym osadów.
Źródło:
Rocznik Ochrona Środowiska; 2009, Tom 11; 77-85
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shape Errors, Internal Porosity, Linear Dimensions Accuracy and Allowances for the Machining of Castings Made in the Replicast CS Process
Autorzy:
Haratym, R.
Sieczka, M.
Biernacki, R.
Kwapisz, J.
Powiązania:
https://bibliotekanauki.pl/articles/382962.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Replicast CS process
shape errors
dimensional accuracy
proces Replicast CS
błędy kształtu
dokładność wymiarowa
Opis:
This research presents comprehensive assessment of the precision castings quality made in the Replicast CS process. The evaluation was made based on quality of the surface layer, shape errors and the accuracy of the linear dimensions. Studies were carried out on the modern equipment, among other things a Zeiss Calypso measuring machine and profilometer were used. Obtained results allowed comparing lost wax process models and Replicast CS process.
Źródło:
Archives of Foundry Engineering; 2014, 14, 3; 25-28
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
TUY 40 Telescope Control System Based on LabVIEW
Autorzy:
Dindar, M.
Dindar, S.
Kandemir, E.
Bayar, C.
Helhel, S.
Ozisik, T.
Powiązania:
https://bibliotekanauki.pl/articles/1402539.pdf
Data publikacji:
2015-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
95.55.Cs
87.85.St
Opis:
Events and transients are becoming more and more crucial in modern astronomy such as supernovae, gamma-ray bursts and so on. VOEvent messages have all information to make the follow-up observations for transients and events which forces the scientists to make robotic observations. Robotic autonomous telescopes usually run under the control of a scheduler, which provides high-level control by selecting astronomical targets for observation. TUY 40 is a new robotic autonomous telescope control system designed by TÜBİTAK National Observatory (TUG). TUY 40 is based on 16 inch Meade LX-200 telescope mount and optical tube without any Meade electronic components and drive motors. The telescope control software developed on open-source Talon software and LabVIEW is presented. The algorithm for telescope control (slewing, tracking, homing etc.) was implemented in National Instruments PXI chassis written in LabVIEW real-time software from scratch. Talon is open-source software based on the GNU/C UNIX platform. A new TCP/IP library was implemented within Talon software to communicate with hard real-time telescope control software in LabVIEW PXI chassis. Initial setup without any permanent pier and polar alignment showed that the pointing error of the telescope has been obtained as 2.22 arcmin (132 arcsec) in RA axis (horizontal axis of the image) and 25 arcsec in Dec axis (vertical axis of the image), and tracking error has been observed as ≈ 4.8 arcsec per second.
Źródło:
Acta Physica Polonica A; 2015, 128, 2B; B-73-B-74
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sound Field Diffusivity Assessment in Non-Stationary State by Measuring Nonuniformity of Sound Decay Curve
Autorzy:
Leo, K.
Powiązania:
https://bibliotekanauki.pl/articles/1490368.pdf
Data publikacji:
2012-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
43.55.Br
43.55.Cs
Opis:
Methods of sound diffusion assessment presented in literature require information on directional properties of the sound field in stationary state. These methods are complicated and not often applicable in measurement practice. Measurement of the sound field diffusivity during its formation can be assessed from sound level decay curve deviation from a linear shape. With this method, the degree of diffusivity has been determined in three rooms. Measurements were performed in rooms differing in volumes and sound absorption. Changes in sound decay uniformity were noted, which can be translated into diffusion coefficient changes. Results indicate that diffusion increases as room absorption decreases. Diffusion does not depend on room volume. Changes of sound decay uniformity follow trends that are well described by power function.
Źródło:
Acta Physica Polonica A; 2012, 121, 1A; A-197-A-200
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expansion of the Rotational Energy of Diatomic Molecules into a Continued Fraction
Autorzy:
Molski, M.
Konarski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1920626.pdf
Data publikacji:
1992-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.10.Cs
33.10.Jz
Opis:
A new expansion of the rotational energy of diatomic molecules, in the form of a continued fraction has been investigated. The considered formula is applied in calculation of molecular constants and reproduction of rotational spectra of rigid-, semirigid- and van der Waals-type molecules. A physical interpretation of semiempirical expansion parameters is proposed and a connection between the method considered and the Dunham approach is also discussed.
Źródło:
Acta Physica Polonica A; 1992, 81, 4-5; 495-501
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Branching Ratio Measurements for Ge I and Ge II
Autorzy:
Bratasz, Ł.
Musioł, K.
Powiązania:
https://bibliotekanauki.pl/articles/2014238.pdf
Data publikacji:
2000-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.Fw
32.70.Cs
Opis:
A high resolution Fourier-transform spectrometer was used to measure branching ratios for 5s-5p, 4d-6s, 6s-6p, 5s-6p, 4d-6p, 4d-7p transitions in neutral germanium and 4d-4f, 4p$\text{}^{2}$-4f, 4p$\text{}^{2}$-5p, 5s-5p, 4p$\text{}^{2}$-4p, 4d-6p, 4p$\text{}^{2}$-6p, 4d-5f, 4p$\text{}^{2}$-5f, 4d-7p, 4p$\text{}^{2}$-7p of singly ionized germanium. Measurements were performed with a hollow cathode as a light source. Spectral lines intensities were measured in a spectral range from 200 to 3500 nm. Absolute transition probabilities for some Ge II lines were obtained using experimental lifetime values for the 4s$\text{}^{2}$4f$\text{}^{2}$F$\text{}_{5}\text{}_{/}\text{}_{2}$ ,$\text{}^{2}$F$\text{}_{7}\text{}_{/}\text{}_{2}$ and 4s$\text{}^{2}$5p$\text{}^{2}$P$\text{}_{1}\text{}_{/}\text{}_{2}$ ,$\text{}^{2}$P$\text{}_{3}\text{}_{/}\text{}_{2}$ levels. Our results for transitions in neutral germanium show that some infrared lines, so far overlooked in spectral analyses, give a strong contribution to Ge spectrum. Our transition probabilities obtained for Ge II lines are lower than all other experimental and theoretical results, in one case even by an order of magnitude.
Źródło:
Acta Physica Polonica A; 2000, 98, 4; 345-351
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ligand-Framework Coupling Vibrations. The ^2E_g → ^4A$\text{}_{2g}$ Transition in the Cr(CN)_6$\text{}^{3-}$ Complex Ion
Autorzy:
Acevedo, R.
Passman, M.
Navarro, G.
Powiązania:
https://bibliotekanauki.pl/articles/2024002.pdf
Data publikacji:
2001-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.Fw
32.70.Cs
Opis:
In this research paper we examine the role played by the bending vibrational modes of motion, δ(Cr-C-N) to influence the observed overall and relative vibronic intensity distribution for the $\text{}^{2}$E$\text{}_{g}$ → $\text{}^{4}A_{2g}$ phosphorescence of the Cr(CN)$\text{}_{6}^{3-}$ complex ion. The calculation was carried out assuming both: (a) a seven-atom system model (molecular approximation) and (b) a negligible distortion from the octahedral symmetry for the system. The ligand polarization formalism was employed with reference to this system, since the ligand subsystems (CN)$\text{}^{-1}$ are highly polarizable and as a consequence a conventional crystal field calculation would be both unrealistic and unappropriate. This system was chosen since there is a solid evidence to conclude that vibrations of the same type in the τ$\text{}_{1u}$ and τ$\text{}_{2u}$ symmetry blocks induce comparable intensity. This is a clear indication that both the τ$\text{}_{1u}$ and τ$\text{}_{2u}$: δ(Cr-C-N) bending vibrations are exceptionally efficient to promote this radiative transition. This dynamical model is tested against the experimental data and it is shown that the model calculation, though approximate, gives results in excellent agreement with experiment.
Źródło:
Acta Physica Polonica A; 2001, 99, 2; 215-231
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regularities of Line Strengths in Spectra of NI, FI, and NeII
Autorzy:
Musielok, J.
Powiązania:
https://bibliotekanauki.pl/articles/1968961.pdf
Data publikacji:
1998-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.30.-r
32.70.Cs
Opis:
Recently experimentally determined individual (fine structure) line strengths for the spectra of NI, FI, and NeII are analysed, searching for regularities resulting from similarities in the structure of these species. Strengths of spectral lines of the prominent 3s-3p and 3p-3d transition arrays are investigated. The absolute scales of these experimentally derived data are based on independently determined lifetimes for excited levels of NI, FI, and NeII. The simple Coulomb approximation method was applied for calculations of the matrix elements for the "jumping" electron in order to obtain an average trend in line strengths of the studied emitters. In the case of the isoelectronic species (FI, NeII), additionally the trend resulting from the perturbation theory is taken for comparison. Except the trend study of the absolute scale, the strengths of individual lines within analogous multiplets (in a relative scale) are investigated and compared with data resulting from LS coupling scheme and with semi-empirical calculations.
Źródło:
Acta Physica Polonica A; 1998, 94, 1; 13-23
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies of Rotational-Vibrational Dynamics in Highly Excited HDO Molecule
Autorzy:
Pyka, J.
Powiązania:
https://bibliotekanauki.pl/articles/1887498.pdf
Data publikacji:
1991-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.10.Cs
33.10.Jz
Opis:
The dynamics of highly excited HDO molecule is investigated. Calculations up to J = 40 are performed for the bending-rotation Hamiltonian by applying the self-consistent (SC) methodology. Various aspects of rotation-vibration interaction are discussed. Centrifugal destabilization and stabilization of the molecular geometry is explained.
Źródło:
Acta Physica Polonica A; 1991, 79, 5; 635-653
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of High Power Laser Beam on Physical Properties of Epitaxial Films of Hg$\text{}_{1-x}$Cd$\text{}_{x}$Te (x≈0.2)
Autorzy:
Kuźma, M.
Abeynayake, C.
Sheregii, E.
Virt, I.
Powiązania:
https://bibliotekanauki.pl/articles/1891472.pdf
Data publikacji:
1991-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.60.Cs
81.40.Rs
Opis:
Models have been proposed explaining differences in electrophysical and photoelectrical properties of epitaxial films of Hg$\text{}_{1-x}$Cd$\text{}_{x}$Te (x≈0.2) before and after treating by single pulses of Nd:YAG laser. These models were obtained on the basis of the calculated distributions of temperature, temperature gradient and concentration of interstitial mercury during and after exposing to the laser pulse. These calculations were done using the net method.
Źródło:
Acta Physica Polonica A; 1991, 80, 3; 475-479
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spectral Expansion of the Rovibrational Energy of Diatomic Molecules Described by Morse Potential
Autorzy:
Molski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1929815.pdf
Data publikacji:
1993-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.10.Cs
33.10.Jz
Opis:
On the basis of the deformable body model and the Morse potential approximation a six-parametric spectral expansion of the rovibrational energy of diatomic molecules, competitive to the standard Dunham approach, is proposed. The considered formula takes into account the centrifugal distortion effect and anharmonic corrections, which permit investigation of the molecular spectra over a wide range of rotational and vibrational states.
Źródło:
Acta Physica Polonica A; 1993, 84, 6; 1041-1048
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Core Polarization Effects in the Relativistic Quantum-Defect-Orbital Theory
Autorzy:
Bielińska-Wąż, D.
Martin, I.
Karwowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1931291.pdf
Data publikacji:
1994-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.Cs
32.90.+a
Opis:
The quantum-defect-orbital method has been reformulated in order to include both relativistic effects and the electron correlation described by a core polarization potential. All quantities appearing in this formulation may be evaluated analytically. A comparison with experimental results demonstrates, on one hand, significance of the relativity-correlation corrections and, on the other, inadequacy of the relativistic quantum-defect-orbital approach when indirect relativistic effects are important, i.e. when atoms contain closed shells of d electrons.
Źródło:
Acta Physica Polonica A; 1994, 85, 5; 805-812
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modified Kratzer-Fues Formula for Rotation-Vibration Energy of Diatomic Molecules
Autorzy:
Molski, M.
Konarski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1924270.pdf
Data publikacji:
1992-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.10.Cs
33.10.Jz
Opis:
An extension of the Kratzer-Fues approach to analytical calculation of the rotation-vibration energy of diatomic molecules is proposed. The eigen-values from this approach are applied in calculation of the rotational and rovibrational energies and in evaluation of molecular constants of selected diatomic molecules, resulting in satisfactory reproduction of experimental frequencies over a wide range of rotational states. In contrast to our previous proposition the rotational dependence of vibration energy is taken into account. An additional set of fitted parameters which include equilibrium distance and dissociation constant was also employed.
Źródło:
Acta Physica Polonica A; 1992, 82, 6; 927-936
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Centrifugal Distortion Effect in Diatomic Molecules Described by Morse Potential
Autorzy:
Molski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1929146.pdf
Data publikacji:
1993-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.10.Cs
33.10.Jz
Opis:
An attempt at including the centrifugal distortion effect in description of the rovibrational states of diatomic systems with a molecular potential approximated by the Morse function is presented. The derived Schrödinger equation can be rigorously solved leading to the eigenvalues in the form of a continued fraction, which are applied for evaluation of the molecular constants and for prediction of the rovibrational spectra of the selected diatomic molecules giving quite satisfactory reproduction of the experimental data. A simple extension of the method developed, by assuming the rotational dependence of the dissociation constant, is also proposed.
Źródło:
Acta Physica Polonica A; 1993, 83, 4; 417-423
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Emission Spectra for the Cs$\text{}_{2}$NaScCl$\text{}_{6}$:MoCl$\text{}_{6}^{3-}$ System in the Fm3m Space Group
Autorzy:
Acevedo, R.
Meruane, T.
Navarro, G.
Powiązania:
https://bibliotekanauki.pl/articles/2024014.pdf
Data publikacji:
2001-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.Fw
32.70.Cs
Opis:
On the basis of the data reported by Flint and Paulusz, we have undertaken a theoretical investigation of the intensity mechanism for the various emissions:Γ$\text{}_{8}$($\text{}^{2}$T$\text{}_{2g}$ ) → Γ$\text{}_{8}$($\text{}^{4}$A$\text{}_{2g}$), Γ$\text{}_{8}$($\text{}^{2}$E$\text{}_{g}$), Γ_8($\text{}^{2}$T$\text{}_{1g}$), Γ$\text{}_{6}$($\text{}^{2}$T$\text{}_{1g}$) for the Cs$\text{}_{2}$NaScCl$\text{}_{6}$:MoCl$\text{}_{6}^{3-}$ system in the Fm3m-space group. The experimental data available refer to the visible and near infrared luminescence spectra of MoCl$\text{}_{6}^{3-}$ complex ion in different hosts, such as Cs$\text{}_{2}$NaMCl$\text{}_{6}$ (M = Sc, Y, In), measured between 15,000 cm$\text{}^{-1}$ and 3,000 cm$\text{}^{-1}$ at liquid helium temperatures. At least, five luminescence transitions have been identified and assigned and each of them show extensive vibronic structure. A careful analysis of this experimental data shows that for the various observed electronic transitions, the vibrational frequencies change only slightly, and therefore there is no indication that the system undergoes both a significant and relevant Jahn-Teller distortion (along an active coordinate). There is however clear evidence that for the chloro-elpasolites, there is a strong resonance interaction between ν$\text{}_{3}$(τ$\text{}_{1u}$ : stretching) of the MoX$\text{}_{6}^{3-}$, complex ion and that of the host when M = In, Y. Thus for M = Sc, the slighter higher host ν$\text{}_{3}$, wave number is likely to minimize the effect of this coupling. This evidence will allow us for the Cs$\text{}_{2}$NaScCl$\text{}_{6}$:MoCl$\text{}_{6}^{3-}$ system to neglect, in the first-order approximation, the coupling among the internal and the external vibrations and to proceed using a both a molecular and the independent system models.
Źródło:
Acta Physica Polonica A; 2001, 99, 2; 233-242
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiative lifetimes for singly ionized beryllium
Autorzy:
Çelik, G.
Atalay, B.
Ateş, Ş.
Powiązania:
https://bibliotekanauki.pl/articles/1157856.pdf
Data publikacji:
2016-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
31.15.ag
32.70.Cs
Opis:
The theoretical lifetimes for singly ionized beryllium (Be II) have been calculated using the weakest bound electron potential model theory and the quantum defect orbital theory under the assumption of the LS coupling scheme. In the calculations, many states are considered. Some lifetime values for highly excited levels have been obtained using these methods. The lifetimes presented in this work have been compared with the early theoretical calculations and measurements presented in the literature. A good agreement with the results in the literature has been obtained.
Źródło:
Acta Physica Polonica A; 2016, 130, 3; 705-709
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diatomic Molecule as a Deformable Body
Autorzy:
Molski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1920623.pdf
Data publikacji:
1992-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
33.10.Cs
33.10.Jz
Opis:
On the basis of the deformable body model and harmonic potential approximation, a nonlinear Hamiltonian describing rovibrational states of diatomic molecules has been derived. The proposed approach is extended to include the Simons-Parr-Finlan potential, and the obtained equations are applied in evaluation of molecular constants and in reproduction of rovibrational spectra of the $\text{}^{1}$Σ state of $\text{}^{12}$C$\text{}^{32}$S, $\text{}^{13}$C$\text{}^{16}$O and rotational spectra of $\text{}^{12}$C$\text{}^{16}$O molecules. A comparison with the standard Dunham results is also made.
Źródło:
Acta Physica Polonica A; 1992, 81, 4-5; 485-494
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oscillator Strengths for Allowed Transitions in Li(II)
Autorzy:
Ateş, Ş.
Çelik, G.
Powiązania:
https://bibliotekanauki.pl/articles/1807774.pdf
Data publikacji:
2009-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
31.15.ag
32.70.Cs
Opis:
Electric dipole oscillator strengths have been computed for transitions between both multiplet and individual lines in the Li(II) ion. The weakest bound electron potential model theory has been used. We have employed both numerical Coulomb approximation wave functions and numerical non-relativistic Hartree-Fock wave functions in the determination of expectation values of radii. The necessary energy values have been taken from experimental ionization energies. The oscillator strengths calculated with parameters obtained by using the two different wave functions have been compared not only to each other but also to other data taken from literature. A good agreement with results in literature has been obtained.
Źródło:
Acta Physica Polonica A; 2009, 116, 2; 169-175
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Line Strength Data for the Spectra οf C(I), N(II), N(I) and O(II)
Autorzy:
Bacławski, A.
Musielok, J.
Powiązania:
https://bibliotekanauki.pl/articles/1807775.pdf
Data publikacji:
2009-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.Cs
32.70.Fw
Opis:
Recently determined experimental and theoretical data on line strengths within 3s-3p and 3p-3d multiplets for C(I), N(II), N(I) and O(II) are analyzed. An overall satisfactory agreement between experimental data and results of recent sophisticated calculations is found with exception of only some weaker transitions. However, the measured and calculated relative line strengths disagree significantly with data resulting from the LS coupling scheme, particularly for 3p-3d transitions. In numerous cases these differences are - to a considerable degree - "regular" along the isoelectronic sequences C(I)-N(II) and N(I)-O(II). For some multiplets these discrepancies also correlate with departures from the Landé interval rule for terms involved in the corresponding transitions.
Źródło:
Acta Physica Polonica A; 2009, 116, 2; 176-184
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fluctuation of radiocaesium concentrations in the near-surface atmospheric layer in Białystok in the period 1992-1999
Autorzy:
Kapała, J.
Zalewski, M.
Tomczak, M.
Mnich, Z.
Karpińska, M.
Powiązania:
https://bibliotekanauki.pl/articles/147161.pdf
Data publikacji:
2002
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
air contamination
Chernobyl accident
Cs-137
Opis:
Air samples were collected at an early-warning sampling and monitoring radioactive contamination station ASS-500. The results of the measurements are presented for radioactive aerosols collected on filters each week between 1992 and 1999. The large variations in activity concentration were observed in annual cycles. The maximum values exceeded the mean annual values by a factor of 2.8 to 7.3. Over the period of eight years the mean values of activity in air was found to decrease from 5.3 mi Bq m-3 in 1992 to 2.2 mi Bq m-3 in 1999. A good correlation between the Cs-137 activity and dust content in the air indicates that in the observed period the main source of Cs-137 activity is the dust with soil and vegetation particles. The effect of radiation from inhalation is negligible (626 pSv).
Źródło:
Nukleonika; 2002, 47, 2; 69-73
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Migration of radiocaesium in individual parts of the environment
Autorzy:
Čipáková, A.
Powiązania:
https://bibliotekanauki.pl/articles/147738.pdf
Data publikacji:
2005
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
137Cs
soil contamination
sequential extraction
mushrooms
Opis:
The aim of this study was to compare the amount of radiocaesium in chosen compartments of environment in two localities of Košice vicinity (Košice and Jasov). Prevailing part of radiocaesium is in the upper layer of soils and specific activity of 137Cs in the first layer for locality Jasov in 2001 achieved 21.49 Bq.kg 1. Transfer factor values estimated for mixed grasses and for individual years varied within the range of 0.22 to 0.56 at locality Košice and of 0.09 to 0.19 at locality Jasov. On the base of results from modified Tessier sequential extraction method we determined that more than 50% of this radionuclide is in the soil in not extractable fraction. From studied species of mushrooms in sample of Rozites caperata the specific activity achieved 1822.0 Bq.kg 1 d.w.
Źródło:
Nukleonika; 2005, 50,suppl.1; 19-23
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Therapeutic potential of cristobalite in the treatment of calf diarrhea
Autorzy:
Ozcan, U.
Sezener, M.G.
Sayilkan, B.U.
Kulluk, E.
Akman, A.
Cetiner, H.
Erguden, V.E.
Yaman, S.
Gumusova, S.
Ciftci, A.
Meral, Y.
Dalgın, D.
Powiązania:
https://bibliotekanauki.pl/articles/16539326.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
calf diarrhea
cristobalite
CS31a
zeolite
Opis:
Calf diarrhea continues to be the major problem of calves in the neonatal period. The effect of zeolites has been increasingly studied in ruminant health in recent years. In the present study, the efficacy of cristobalite, a zeolite, in neonatal calf diarrhea was studied first time. For this purpose, twenty-five neonatal calves with diarrheas were divided into two groups, and Group 1 (n=12) received conventional treatment and Group 2 (n=13) received cristobalite (Zoosorb 10 mg/kg) orally 3 times a day in addition to conventional treatment. Escherichia coli k99 and CS31a, bovine rotavirus and bovine coronavirus were isolated from fecal samples at the beginning of the treatment, on the third day and before discharge. It was determined that the recovery period in Group 2 was 0.95 (20.6%) days shorter than in Group 1 (p<0.05) while no viral agents were found on the fifth day in Group 2, viral shedding continued in 4 of 5 calves in Group 1. In conclusion, the study revealed that cristobalite speeds the recovery time and possibly decreases viral shedding in neonatal calf diarrhea, demonstrating a remarkable efficiency in the treatment.
Źródło:
Polish Journal of Veterinary Sciences; 2022, 25, 3; 437-446
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the activity level of gamma radionuclides -artificial 137Cs and for comparison -natural 40K and the selected heavy metals in the Tatra Mountains ecosystem.
Autorzy:
Kubica, Barbara Maria
Stobiński, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/763973.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
137Cs,40K,Tatra Mts, monitoring
Opis:
This paper presents the results of determination of artificial 137 Cs and natural 40K  activity concentrations and same heavy metals in soil samples from Tatra Mts. Results  show some differences in the vertical distribution and of examined radionuclides and metals. The change of  activity of 137Cs in the  soil samples depends mostly on the soil volume density and on the concentration of organic material. The state of "zero" 137Cs activity was developed in the form of maps.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2016, 71, 1
2083-358X
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New method for removal of radioactive particles from waste water after decontamination
Nowa metoda usuwania radioaktywnych zanieczyszczeń z roztworów poakcyjnych
Autorzy:
Maciejewski, P.
Zielonka, Z.
Wrzesiński, J.
Powiązania:
https://bibliotekanauki.pl/articles/373385.pdf
Data publikacji:
2011
Wydawca:
Centrum Naukowo-Badawcze Ochrony Przeciwpożarowej im. Józefa Tuliszkowskiego
Tematy:
Ba-133
Cs 137
flotacja jonowa
jonizowalny eter lariatowy
Sr-85
Cs-137
ions flotation
proton-ionizable crown ether
Opis:
A terrorist attack involves the release and dispersion of radioactive material among civilian population or over vital area causes a permanent radioactive contamination, which should be removed in decontamination process. Finally, after this procedure, a large amount of radioactive waste water is made, which should be collected and stored in a special nuclear waste stockpile. We present results of experimental work, which was focused on removal of radioactive substances from waste water from decontamination process after using .dirty bomb.. The ion flotation process was used to remove radioisotopes from slightly salty (
Atak terrorystyczny z użyciem substancji radioaktywnych wymaga podjęcia odpowiednich działań zmierzających do dekontaminacji skażonych powierzchni. Istotą działania jest mechaniczne usuniecie substancji radioaktywnych z użyciem wodnych roztworów związków powierzchniowo czynnych, co jednak skutkuje postawianiem dużych objętości radioaktywnych ścieków (roztworów poakcyjnych). Rozwiązaniem problemu może być zastosowanie szybkiej i efektywnej metody wydzielania substancji promieniotwórczych z roztworów wodnych, tj. flotacji jonowej. W pracy przedstawiono wyniki badań wydzielania radioizotopów Ba-133, Sr-85 i Cs-137 z rozcieńczonych, zasolonych NaNO3 (1.0 10[^-3] M) roztworów wodnych z użyciem nowej grupy związków makrocyklicznych, tj. jonizowanych eterów lariatowych o stężeniu 1 10[^-5] M w obecności niejonowego roztworu spieniacza . Tritonu X-100 (1 10[^-5] M). Stężenie każdego radioizotopu w mieszaninie wynosiło 1 10[^-5] M i założenia odpowiadało składem radioaktywnym ściekom po dekontaminacji obiektów po ataku bombą radiologiczną. Na bazie uzyskanych wyników zaproponowano zastosowanie "modułu flotacyjnego", który umożliwiłby szybkie usuwanie zanieczyszczeń promieniotwórczych z roztworów poakcyjnych, a przez to zasadniczą redukcje objętości ścieków radioaktywnych.
Źródło:
Bezpieczeństwo i Technika Pożarnicza; 2011, 2; 51-58
1895-8443
Pojawia się w:
Bezpieczeństwo i Technika Pożarnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Ceramic Coatings on the Mechanical Properties of Ceramic Moulds Used in the Replicast CS Technology
Autorzy:
Buczkowska, K.
Pacyniak, T.
Powiązania:
https://bibliotekanauki.pl/articles/379579.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
replicast CS technology
refractory ceramic coating
model of polystyrene
casting
ceramic coating
technologia Replicast CS
powłoka ceramiczna
model polistyrenowy
Opis:
The paper discusses the issues related to the Replicast CS technology. The research concerning the indication of the bending strength of ceramic moulds depending on the type and configuration of the shells will determine the effect of the type of binder and powder on the mechanical properties of shell moulds. The experimental studies presented in the paper include the manufacture of polystyrene models, followed by the application of 6 layers of ceramic coatings of different types and configurations on sets of polystyrene and wax models. Next, the studies test the bending strength of the obtained samples of ceramic moulds, depending on the type and configuration of the coatings. The presented research has shown the relationship between the different configurations of the materials used for the manufacture of ceramic coatings and their bending strength. It has been shown that, by the appropriate selection of the ceramic coatings, it is possible to obtain ceramic moulds with a possibly high bending strength.
Źródło:
Archives of Foundry Engineering; 2015, 15, 3 spec.; 112-118
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The quality of precision steel castings produced in the Replicast CS process
Jakość staliwnych odlewów precyzyjnych wytwarzanych w procesie Replicast CS
Autorzy:
Tomasik, J.
Haratym, R.
Kwapisz, J.
Powiązania:
https://bibliotekanauki.pl/articles/381134.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
quality of cast
surface microgeometry
Replicast CS process
dimensional accuracy
jakość odlewu
mikrogeometria powierzchni
proces Replicast CS
dokładność wymiarowa
Opis:
The quality in ceramic mould precision casting process include mostly surface quality of casts and their dimensional accuracy represented by six sigma deviation from the nominal dimensions (ΔL). This article present achieved results of examination of cast’s surface finish. The dimensional analysis accuracy of expended polystyrene patterns and castings made from these patterns was executed.
Jakość w procesie odlewnictwa precyzyjnego w formy ceramiczne obejmuje przede wszystkim stan powierzchni odlewów i ich dokładność wymiarową rozumianą jako odchyłkę sześciosigmową wymiarów nominalnych (ΔL). W artykule zaprezentowano uzyskane wyniki badań stanu powierzchni odlewów. Wykonano analizę dokładności modeli z polistyrenu i odlewów wykonanych na tych modelach.
Źródło:
Archives of Foundry Engineering; 2011, 11, 2 spec.; 209-212
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interlaboratory comparison of the determination of 137Cs and 90Sr in water, food and soil: preparation and characterization of test materials
Autorzy:
Fuks, L.
Polkowska-Motrenko, H.
Powiązania:
https://bibliotekanauki.pl/articles/148511.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
137Cs
50Sr
determination
food
soil
water
Opis:
Only reliable analytical results can serve as a basis of meaningful evaluation and protection of the environment against radioactive contaminants. So, laboratories dealing with the environmental radioactivity determinations should regularly demonstrate their ability to produce acceptable results. Since 2002, every two years organization of national interlaboratory comparisons (ILC) on the determination of different radionuclides in food and environmental samples is required by the Polish law. The aim of the paper is presentation how test materials applied in the Institute of Nuclear Chemistry and Technology (INCT, Warsaw, Poland) for the 2004 ILC on the determination of 137Cs and 90Sr in water, food and soil were prepared.
Źródło:
Nukleonika; 2006, 51,suppl.2; 27-31
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O tłumaczeniach greckich σκήνωμα, σκηνή i innych odzwierciedlonych w cerkiewnosłowiańskich redakcjach Księgi Psalmów
Autorzy:
Szulc, Arleta
Powiązania:
https://bibliotekanauki.pl/articles/677566.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Slawistyki PAN
Tematy:
Greek pattern
CS Psalter redaction
(O)CS lexical/word-formative equivalent
conditions of the use of vocabulary
quantitative description
Opis:
On translations of the Greek σκήνωμα, σκηνή etc. Reflected in CS redactions of the Book of Psalms The paper discusses the Slavonic equivalents of the Greek words skēnōma, skēnē and also katoikētērion, katoikia and paroikia in selected (O)CS versions of the Psalter. A comparative semantic (contextual) and quantitative analysis of the use of the considered vocabulary is carried out. Resemblances and differences in the choice of words among the confronted texts are pointed out. Explanation of the observed differences is given. The analysis is illustrated with appropriate exemplification. O tłumaczeniach greckich σκήνωμα, σκηνή i innych odzwierciedlonych w cerkiewnosłowiańskich redakcjach Księgi PsalmówW artykule rozważa się słowiańskie odpowiedniki greckich leksemów skēnōma, skēnē, a także katoikētērion, katoikia i paroikia w wybranych (staro-)cerkiewnosłowiańskich wersjach Psałterza. Dokonuje się porównawczej analizy semantycznej (kontekstualnej) i ilościowej użyć rozważanego słownictwa. Wskazuje się na podobieństwa i różnice w jego doborze w porównywanych tekstach. Podaje się objaśnienia zaobserwowanych różnic. Analizę ilustruje się odpowiednim materiałem egzemplifikacyjnym.
Źródło:
Slavia Meridionalis; 2018, 18
1233-6173
2392-2400
Pojawia się w:
Slavia Meridionalis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seniors as a research group in the experimental model
Autorzy:
JAKUBOWSKA, LUBA
Powiązania:
https://bibliotekanauki.pl/articles/628015.pdf
Data publikacji:
2012
Wydawca:
Fundacja Pro Scientia Publica
Tematy:
research process, experimental model, seniors, methodology, specifi cs of the method, specifi cs of the research, competences of the researcher
Opis:
The article focuses on the conduct of experimental research with seniors. I would like to present the limitations and the advantages of experimental research in the following fi elds: specifi cs of the method, specifi cs of the research group and competences of the researcher. Data gathered through interviews with persons engaged in the experiment with seniors will serve as illustration of the discussion. In the article I have emphasised the limitations, but only in order to demonstrate how attempts can be made at dealing with them. The advan-tages connected with the opportunities provided by experimental research are self-evident.
Źródło:
Journal of Education Culture and Society; 2012, 3, 2; 27-35
2081-1640
Pojawia się w:
Journal of Education Culture and Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioaccumulation of 137Cs in wild mushrooms collected in Poland and Slovakia
Autorzy:
Bazała, M.
Bystrzejewska-Piotrowska, G.
Čipáková, A.
Powiązania:
https://bibliotekanauki.pl/articles/147742.pdf
Data publikacji:
2005
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
bioaccumulation of caesium
137Cs
biomonitoring
mushrooms
potassium
Opis:
Activities of caesium in the mushrooms collected at different localities in Poland and Slovakia have been compared. Discrimination factor, defined as [(Bq.kg 1 137Cs in caps)/(Bq.kg 1 40K in caps)]/[(Bq.kg 1 137Cs in stipes)/ (Bq.kg 1 40K in stipes)], was used to explain mechanisms of uptake and transport of radiocaesium in fungi. The collected specimens were divided into caps and stipes. Activities of 137Cs and 40K were measured using a multichannel gamma spectrophotometer with HPGe(Li) detector. The highest accumulation of 137Cs was found in the samples of Xerocomus badius, Suillus luteus and Tricholoma equestre (2.7, 1.9 and 1.2 kBq.kg 1, respectively). T. equestre and S. luteus proved to hyperaccumulate caesium since 137Cs levels in the caps were two orders of magnitude higher than in the soil while only one order higher in the case of X. badius. Transport of 137Cs from stipe to cap in fruitbody is directly related to K concentration with lack of similar dependence in the case of transport from soil to cap. There is no dependence between activity of 137Cs in the analyzed fruitbodies and its activity in the soil, which makes mushrooms controversial bioindicators
Źródło:
Nukleonika; 2005, 50,suppl.1; 15-18
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Global Financial Crisis and Its Effects on Real Economies in the Light of Quantitative and Survey Data
Autorzy:
Adamowicz, Elżbieta
Dudek, Sławomir
Pachucki, Dawid
Walczyk, Konrad
Powiązania:
https://bibliotekanauki.pl/articles/499988.pdf
Data publikacji:
2011
Wydawca:
Szkoła Główna Handlowa w Warszawie
Tematy:
financial crisis
business cycles
BTS and CS data analysis
Opis:
The paper discusses the effects of global financial and banking crisis of 2007-2008 on US and selected European economies. Due to its widespread incidence it has triggered substantial research challenge. The main area of our interest is the real side of economies. However, taking into account the fact that the crisis was accompanied by substantial breakdown of corporate and consumer confidence, we use quantitative as well as survey data in the research. We study fluctuations of main economic aggregates: output, consumption, industrial production and retail trade. Quantitative variables are matched with BTS and CS counterparts (confidence and sentiment indicators) to find out whether the survey data preceded quantitative one in signalling changes in real economies, whether synchronisation, the depth and the duration of the recession were different for each variable and country, and finally whether survey/quantitative variables were coherent in describing consequences of the crisis. We analyse cyclical fluctuations of selected variables and describe characteristics of the recession in each country in order to compare reactions of selected economies to the crisis.
Źródło:
Prace i Materiały Instytutu Rozwoju Gospodarczego SGH; 2011, 86:Business Surveys, Business Cycles. Polish Contribution to the 30th CIRET Conference; 11-37
0866-9503
Pojawia się w:
Prace i Materiały Instytutu Rozwoju Gospodarczego SGH
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Discrimination between 137Cs and 40K in the fruiting body of wild edible mushrooms
Autorzy:
Bystrzejewska-Piotrowska, G.
Urban, P.
Stęborowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/148441.pdf
Data publikacji:
2003
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
137Cs/40K discrimination factor
fruiting body
mushrooms
Opis:
Samples of five species of wild edible mushrooms, growing in the vicinity of Warsaw, were analyzed in order to determine discrimination factors (DF) for 137Cs and 40K in their caps and stipes. The obtained DF values range from 0.80 to 2.87, and seem to be characteristic of each species. A brief discussion of the observed phenomenon is presented.
Źródło:
Nukleonika; 2003, 48, 3; 155-157
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculations of the Atomic Structure for Fe XVII Lines
Autorzy:
Zhou, Chao
Cao, Jian-Jian
Liang, Liang
Yu, Geng-Hua
Wang, Zhan-Min
He, Hua-Yue
Powiązania:
https://bibliotekanauki.pl/articles/1398915.pdf
Data publikacji:
2016-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.30.Rj
32.70.Cs
34.80.Dp
Opis:
Energy levels, line strengths, oscillator strengths, radiative decay rates and fine structure collision strengths are presented for sixteen-times ionized iron (Fe XVII). The atomic data are calculated with the AUTOSTRUCTURE code, where relativistic corrections are introduced according to the Breit-Pauli distorted wave approach. The calculations of atomic data for 89 fine-structure levels generated from eleven configurations 2s²2p⁶, 2s²2p⁵ (3s, 3p, 3d), 2s²2p⁵ (4s, 4p, 4d, 4f) and 2s¹2p⁶ (3s, 3p, 3d) of the Ne-like Fe ion are presented. Fine structure collision strengths for transitions from the ground and the first four excited levels are presented at four electron energies: 75, 125, 175, and 250 Ry. These atomic structure data are compared with the available experimental and theoretical results.
Źródło:
Acta Physica Polonica A; 2016, 129, 6; 1109-1117
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bubble-Like Response of Living Blood Cells and Microparticles in an Ultrasound Field
Autorzy:
Mazzawi, N.
Postema, M.
Kimmel, E.
Powiązania:
https://bibliotekanauki.pl/articles/1383573.pdf
Data publikacji:
2015-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
43.80.Cs
47.55.df
87.80.Fe
Opis:
The bilayer sonophore model suggests that ultrasound induces a pulsating structure in the intra-membrane hydrophobic space between the two lipid monolayer leaflets of the cell membrane, assembled by dissolved gas of the surrounding area, which absorbs acoustic energy and transforms it by creating intra-cellular structural changes. This void has been referred to as a bilayer sonophore. The bilayer sonophore inflates and deflates periodically when exposed to ultrasound and may itself radiate acoustic pressure pulses in the surrounding medium in the same way a gas bubble does: once exposed to ultrasound the bilayer sonophore becomes a mechanical oscillator and a source of intracellular cavitation activity. In this paper, we describe observations of the clustering behaviour of living cells and several other particles in a standing sound field generated inside a ring transducer. Upon sonication, blood cells and monodisperse polystyrene particles were observed to have been trapped in the same locations, corresponding to nodes of the ultrasound field. Because polystyrene is hydrophobic, it behaves like a particle trapped inside a thin gas shell. In fact, the sonophore model treats biological cells in a similar way. Microbubbles that form the ultrasound contrast agent Quantison™ behave differently, however. These microbubbles accumulated in circles faster than blood cells and polystyrene particles. In addition, they form tightly packed clusters at the nodes, indicating very strong secondary Bjerknes forces. Cluster formation is not to be expected in cells with predicted sonophore sizes on the order of 10-100 nm.
Źródło:
Acta Physica Polonica A; 2015, 127, 1; 103-105
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the Molecular Shape on Its Thermodynamic Functions
Autorzy:
Lewandowska, A.
Konarski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1813167.pdf
Data publikacji:
2008-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
05.20.-y
05.70.-a
33.10.Cs
Opis:
Free energy and entropy were calculated for molecules of different shapes in gas phase and under small pressure. The values of the thermodynamic functions were found strongly dependent on the molecular shape. The results obtained were applied to predict the route of internal energy deactivation as well as the preferred form of the molecules examined.
Źródło:
Acta Physica Polonica A; 2008, 113, 4; 1111-1115
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O odpowiednikach gr. ὁ ναόϛ, ἡ ἐκκλησία, τό ἁγίασμα, τό ἁγιαστήριον, ἡ ἁγιωσύνη w psałterzowych redakcjach cerkiewnosłowiańskich
Autorzy:
Szulc, Arleta
Powiązania:
https://bibliotekanauki.pl/articles/678718.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Slawistyki PAN
Tematy:
Greek source
representative of CS Psalter redaction
(O)CS semantic equivalent
lexical variant
contextual condition of the use of vocabulary
quantitative analysis
Opis:
On the equivalents of the Greek ὁ ναόϛ, ἡ ἐκκλησία, τό ἁγίασμα, τό ἁγιαστήριον and ἡ ἁγιωσύνη in CS Psalter redactionsThe paper refers to the lexical variety of translations reflected in CS redactions of the Book of Psalms. It is focused on semantic and quantitative analysis of the use of Slavonic equivalents of the Greek ὁ ναόϛ, ἡ ἐκκλησία, τό ἁγίασμα, τό ἁγιαστήριον and ἡ ἁγιωσύνη (i.e., of vocabulary with the denotations: ‘sanctuary, temple, place of living/habitation of God’ and also ‘community of the faithful with the Lord, Church’) in selected representative CS redactions of the Book of Psalms: archaic, mixed (archaic and Russian), Russian (or East-Bulgarian), Norov, Athonite and Cyprian. The paper shows resemblances as well as differences among the confronted Psalters in the choice of the words considered and gives explanation of the uses observed. O odpowiednikach gr. ὁ ναόϛ, ἡ ἐκκλησία, τό ἁγίασμα, τό ἁγιαστήριον, ἡ ἁγιωσύνη w psałterzowych redakcjach cerkiewnosłowiańskichArtykuł dotyczy leksykalnej wariantywności przekładów zawartych w cs. redakcjach Księgi Psalmów. Koncentruje się na semantycznej i ilościowej analizie użyć słowiańskich odpowiedników gr. ὁ ναόϛ, ἡ ἐκκλησία, τό ἁγίασμα, τό ἁγιαστήριον, ἡ ἁγιωσύνη (tj. słownictwa z zakresu oznaczeń ‘świętego przybytku, budynku świątynnego, miejsca zamieszkania/przebywania Boga’, a także ‘zgromadzenia wiernych z Panem, Kościoła’) w wybranych reprezentantach cs. redakcji psałterzowych: archaicznej, mieszanej (archaiczno-ruskiej), ruskiej (albo wschodniobułgarskiej), norowskiej, atońskiej i cyprianowskiej. Eksponuje zarówno podobieństwa, jak i różnice w doborze rozpatrywanych leksemów w porównywanych psałterzach oraz podaje interpretację zaobserwowanych użyć.
Źródło:
Studia z Filologii Polskiej i Słowiańskiej; 2018, 53
2392-2435
0081-7090
Pojawia się w:
Studia z Filologii Polskiej i Słowiańskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Anharmonic Polaronic Model
Autorzy:
Konior, J.
Powiązania:
https://bibliotekanauki.pl/articles/1923721.pdf
Data publikacji:
1992-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.38.+i
74.20.-z
33.10.Cs
Opis:
Anharmonic polaronic model is considered. The model consists of the electronic subsystem, described within the extended Hubbard model, coupled to anharmonic local phonons. By the canonical Holstein-Lang-Firsov transformation the electron-phonon interaction term is ruled out and, then, the effective electronic Hamiltonian is obtained by averaging over the ground state of the phononic subsystem. It is shown that anharmonicity introduces two main additional factors as compared with the harmonic case. First, the band narrowing factor is less rapidly decaying function of the electron-phonon interaction strength. Second, anharmonicity introduces further renormalization of the on- and intersite interaction between fermions.
Źródło:
Acta Physica Polonica A; 1992, 82, 5; 773-776
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monte Carlo simulations of resistive plate chamber for 0.511 MeV photon with FLUKA
Autorzy:
Demir, N.
Aydın, A.
Powiązania:
https://bibliotekanauki.pl/articles/1070435.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
29.40.Cs
29.40.Gx
05.10.Ln
Opis:
We report the simulation results of resistive plate chamber for 0.511 MeV photons using FLUKA code. The efficiency of resistive plate chamber is directly related to the number of electrons produced in the gas gap. Therefore, the type of converter materials and thickness are important parameters for resistive plate chamber detection performance. In this work, the FLUKA based simulations for parallel and isotropic photons were operated for detection efficiency by choosing different converter materials and thicknesses.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 466-468
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Straw Tube Detectors to Hyperon Studies
Autorzy:
Jowzaee, S.
Powiązania:
https://bibliotekanauki.pl/articles/1402634.pdf
Data publikacji:
2015-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
14.20.Jn
13.75.Cs
29.40.Gx
Opis:
A high statistics measurement of the p̅p → pK⁺Λ reaction was done with the COSY-TOF experiment. The proton beam was polarized up to more than 80%, and its momentum was 2.95 GeV/c. The reconstruction of the pK⁺Λ events was done only with the straw tube tracker due to the higher spatial resolution of the straw tube tracker compared to other subdetectors. The Dalitz plot of the pK⁺Λ events was analyzed to understand the reaction mechanism and presented in this paper. The Dalitz plot shows that the COSY-TOF experiment provides complete kinematic coverage of the phase space of this reaction which made it ideal for p̅p → pK⁺Λ reaction analysis. The influence of different physical effects as pΛ final state interaction, excited nucleon states (N*-resonances) and a coupled channel effect of NΣ-pΛ (NΣ cusp effect) produce significant structures in the Dalitz plot. The angular distribution of the particles in the CMS and helicity frame was also presented in this paper.
Źródło:
Acta Physica Polonica A; 2015, 127, 5; 1531-1532
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioaccumulation of 137Cs and 60Co by Helianthus annuus
Autorzy:
Horník, M.
Pipíška, M.
Vrtoch, L.
Augustín, J.
Lesný, J.
Powiązania:
https://bibliotekanauki.pl/articles/147758.pdf
Data publikacji:
2005
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Helianthus annuus
60Co
137Cs
bioaccumulation
starvation
autoradiography
Opis:
The 60Co and 137Cs bioaccumulation by Helianthus annuus L. was measured during 9 day cultivation at 20 š 2°C in hydroponic Hoagland medium. Previous starvation for K+ and for NH4 + 2.2 and 2.7 times, respectively, enhanced 137Cs uptake rate. Previous cultivation in surplus of K+ ions 50 mmol.l 1 has no effect on 137Cs bioaccumulation rate. Both 137Cs and 60Co bioaccumulation significantly increase with dilution of basic Hoagland medium up to 1:7 for caesium and up to 1:3 for cobalt followed by mild decrease at higher dilutions. Root to shoot specific 137Cs radioactivity ratio (Bq.g 1/Bq.g 1, fresh wt.) increased with dilution from 1.46 to 9.6-9.8. The values root to shoot specific radioactivity ratio for 60Co were less dependent on the nutrient concentrations and were within the range 5.7 to 8.5. 137Cs was localized mainly in young leaves (30%) and roots (39%) and 60Co mainly in roots (67%) and leaves (20%). Obtained data showed less sensitivity of 60Co uptake by sunflower on nutrient concentration in hydroponic media.
Źródło:
Nukleonika; 2005, 50,suppl.1; 49-52
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Financial Crime in Socialist Poland and Its Causes in the Light of Polish Central Statistical Office (GUS) Statistics
Autorzy:
Błażejczyk-Majka, Lucyna
Macyra, Roman
Powiązania:
https://bibliotekanauki.pl/articles/1390713.pdf
Data publikacji:
2017-02-07
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
financial crime
statistics
GUS
socialist economy
“3 Cs” model
Opis:
It might seem natural to think that the socialist model of the economy, and a reality where collective property prevailed, eliminated the problem of financial crime. But did it really? This paper, which presents the scale of this type of crime as reflected by GUS (Polish Central Statistical Office) statistics, is an attempt at answering this question. At the same time we would like to present the “3 Cs” model (circumstances, character, chance), in which all the “C” factors occurred simultaneously, but on each occasion each of these had a different impact on the particular criminal act.
Źródło:
Studia Historiae Oeconomicae; 2016, 34; 7-32
0081-6485
Pojawia się w:
Studia Historiae Oeconomicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Blackbody-Radiation-Induced Decay and Excitation οf Rydberg States in Sodium
Autorzy:
Ovsiannikov, V.
Glukhov, I.
Powiązania:
https://bibliotekanauki.pl/articles/1791216.pdf
Data publikacji:
2009-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.80.-t
32.80.Ee
32.70.Cs
Opis:
Rates of the blackbody radiation-induced excitation and decay were calculated for the S-, P-, D-series of the Rydberg states in sodium atoms with the Fues model potential method. Comparisons between three branches of the state depopulation mechanism (spontaneous decays, blakbody radiation-induced and excitations) were carried out. Simple analytical formulas were proposed for ratios of the blackbody radiation-induced decay and excitation rates to the spontaneous decay rate.
Źródło:
Acta Physica Polonica A; 2009, 116, 4; 528-531
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of urea and of chlorocholine chloride on accumulation of 137Cs in spring wheat crops
Autorzy:
Hryńczuk, B.
Weber, R.
Powiązania:
https://bibliotekanauki.pl/articles/146147.pdf
Data publikacji:
2000
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
137Cs
leaf contaminated
radioactive pollution
soil contaminated
wheat
Opis:
The influence of leaf feeding with nitrogen in urea solution and application of chlorocholine chloride (CCC) on the uptake of 137Cs by spring wheat from the investigated soil samples and through leaves was studied in pot experiments. Spray application of nitrogenous fertilizer in urea solution with additional use of growth retardant were found to have brought about an increased accumulation in the grain of 137Cs taken up by the plants from the contaminated soil. It was found that 2–4 times more 137Cs accumulated in wheat grain from leaves contaminated in the flowering stage in comparison with that found in the grain of plants contaminated in the propagation stage. The application of leaf feeding with urea and chlorocholine exerted no influence on the accumulation of 137Cs in grain if the plants had been contaminated superficially in their earlier development stages. Contamination with 137Cs sprayed upon the plants after application of chlorocholine chloride appeared to pass to the spring wheat crops more readily.
Źródło:
Nukleonika; 2000, 45, 2; 133-135
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
C.S. Lewis. Adaptacje życia i twórczości
C.S. Lewis: adaptations of life and work
Autorzy:
Zborowska, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/521202.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
adaptation
biographic film
C.S. Lewis
Chronicles of Narnia
Opis:
The author discusses film representations of the life of C.S. Lewis – a famous English Christian writer. She also focuses on adaptations (that include books, television and cinema) of his most famous series The Chronicles of Narnia – series that for already sixty years have been published all over the world.
Źródło:
Annales Universitatis Paedagogicae Cracoviensis. Studia de Cultura; 2013, 5, 1; 35-54
2083-7275
Pojawia się w:
Annales Universitatis Paedagogicae Cracoviensis. Studia de Cultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transformacje leksykalne cerkiewnosłowiańskich tekstów ewangelicznych redakcji ruskiej
Lexical transformations of Church Slavonic texts of the Ruthenian recension
Autorzy:
Kurianowicz, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/1832818.pdf
Data publikacji:
2018-12-30
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
leksyka
starodruki
język cs. ruskiej redakcji
drugi wpływ południowosłowiański
lexis
old books
cs language Ruthenian editorial office
the second South
Slavic influence
Opis:
In this article two Church Slavonic old prints: the Ostrog Bible (1581) and the Jabłeczna Gospel Book (1771) – were subjected to collation with the lexis of the Ostromir Gospel Book. All the texts are the part of the Ruthenian recension. The purpose of the comparison was to show and explain the observed differences at the lexical level. The confrontation allowed to differentiate between the language layers comprising the texts: the Greek, Moravian, West-Bulgarian, East-Bulgarian and Ruthenian ones. What is more, both old prints are identical (with the exception of three lexemes). Taking into consideration the few discrepancies, it can definitely be said that the Evangeliary of 1771 retained the pre-Niconian lexis virtually intact. Furthermore, juxtaposing proved that the Gospel aprakos differs from the Evangeliary and from the complete edition of the Bible not only in the organization of the content but also in the lexical and word formation means.
Źródło:
Studia Wschodniosłowiańskie; 2018, 18; 135-160
1642-557X
Pojawia się w:
Studia Wschodniosłowiańskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plutonium and gamma emitters in the northeastern part of Bory Tucholskie (Poland)
Autorzy:
Mietelski, J. W.
Mirocha, S.
Bogacz, J.
Powiązania:
https://bibliotekanauki.pl/articles/146823.pdf
Data publikacji:
2008
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
radioactive contamination
plutonium
137Cs
global fallout
Chernobyl
Bory Tucholskie
Opis:
The paper presents results of the measurements of Pu and gamma emitters of some forest litter/soil profiles collected in 1999 in the northeastern part of Bory Tucholskie forest (northern Poland). Besides the activity concentration of 137Cs, 134Cs, 40K, 228Ac, 238Pu, 239+240Pu, the cumulated deposition of 137Cs, 238Pu and 239+240Pu were calculated. The origin of these radionuclides is discussed on the basis of the observed activity ratios. The observed average level of radioactive contamination confirms expectations for this region, however samples show a relatively large variation of cumulated deposition for both plutonium and radiocesium originated from global and Chernobyl fallout.
Źródło:
Nukleonika; 2008, 53, 1; 17-25
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary studies on the spatial distribution of artificial 137Cs and natural gamma radionuclides in the region of the Ojców National Park, Poland
Autorzy:
Stobiński, M.
Jędrzejek, F.
Kubica, B.
Powiązania:
https://bibliotekanauki.pl/articles/148352.pdf
Data publikacji:
2018
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
137Cs
gamma spectrometry
natural radioactivity
soil
rainfall
organic content
Opis:
The aim of the research is to obtain preliminary information about the spatial distribution of gamma radionuclides in the soils taken from the Ojców National Park with emphasis on the behaviour of artificial radionuclides, with 137Cs as a representative. The natural radionuclides 40K, 226Ra (uranium series), and 228Th (thorium series), which are considered as background radiation, were also determined. In total, 18 soil samples were collected during the summer periods in 2015–2017, while the sampling points were selected with respect to differences in rainfall and local topography gradient. The method was based on gamma-ray spectrometry performed on high-purity germanium (HPGe) gamma detector (relative efficiency 34%). 137Cs was mostly deposited in the top soil layers, with activity in the range of 27.9÷586.6 Bq•kg–1. We found strong positive correlation of the 137Cs activity with the soil organic matter content, and at the same time, its dependence on the rainfall amount. Consequently, the soil types and local climate can control the spatial distribution of 137Cs on a small spatial scale. The quantity of natural radionuclides was highly similar in all samples with the following mean values: 38.0 Bq•kg–1 for 228Th, 33.1 Bq•kg–1 for 226Ra, and 479.9 Bq•kg–1 for 40K.
Źródło:
Nukleonika; 2018, 63, 4; 105-111
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the sediment deposition rates in the Kuwait Bay using 137Cs and 210Pb
Autorzy:
Al-Zamel, A.
Bou-Rabee, F.
Al-Sarawi, M.
Olszewski, M.
Bem, H.
Powiązania:
https://bibliotekanauki.pl/articles/148519.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
bottom sediments
sedimentation rate
unsupported 210Pb
137Cs radionuclide
Opis:
Five bottom sediment cores from the Kuwait Bay were dated using 210Pb and 137Cs radionuclides. For evaluating the sedimentation rate two methods were applied: geochronology with the constant rate of supply unsupported 210Pb (CRS model) and the Weibull distribution of anthropogenic 137Cs. The sedimentation rates in this region, calculated by the first method ranged from 0.24 to 0.39 cm/year, while the same rates obtained from 137Cs distribution were slightly lower: from 0.1 to 0.25 cm/year. These relatively small differences can be explained by additional input of the Chernobyl accident to the 137Cs inventory in the bottoms sediments of the Northern Hemisphere.
Źródło:
Nukleonika; 2006, 51,suppl.2; 39-44
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiation monitoring of agricultural soils of the Volyn region in Ukraine
Autorzy:
Hromyk, O.
Ilyin, L.
Grygus, I.
Korotun, S.
Ilyina, O.
Zukow, W.
Powiązania:
https://bibliotekanauki.pl/articles/2087331.pdf
Data publikacji:
2020
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
radionuclides
90SR
137CS
radioactive contamination
soils
monitoring
settlement
Opis:
Background. The development of effective environmental management programs requires an appropriate assessment of the current state of the environment and contributes to anticipating future changes in the state of the environment. Obtaining such information is one of the main objectives of monitoring the environment, which is subject to anthropogenic stress, including radiological contamination. The distribution of radionuclides and their ability to migrate in ecological chains and concentration in individual parts requires special control in contaminated areas. Objective. The purpose of the study was to analyze the content of radionuclides ( 137Cs and 90Sr) in soils near the settlements of the zone of radioactive contamination of the Volyn region and their spatial differentiation. Priority is given to agricultural lands, soils, crop products, which necessitates the organization of targeted monitoring of the agro industrial complex Material and methods. Radioactivity from 137Cs and 90Sr in the soil originating in the Volyn region was studied from 1996 to 2018. Radiation control was carried out on the area of 59852 ha (arable land - 38897 ha, meadows and pastures – 20955 ha). Results. A significant part of the study area has elevated levels of radioactive contamination. The density of radionuclide contamination of agricultural soils in the settlements of the region has been determined. Density of pollution of all surveyed agricultural lands 137Cs ranges from 0.01 to 2.826 Ci/km2, and 90Sr from 0.01 to 0.048 Ci/km2. Conclusions. The radiological situation in the Volyn region (Ukraine) remains stable. There are slight fluctuations of 137Cs and 90Sr, which is due to changes in weather conditions, which leads to an increase or decrease in groundwater and as a consequence - the migration of radionuclides. The most polluted were the soils of administrative districts of Manevychi and Liubeshiv.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2020, 71, 4; 377-382
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of radioactivity dose rate absorbed with ingested foods
Badanie wchłoniętej skutecznej dawki promieniowania otrzymanej wraz ze spożywaną żywnością
Autorzy:
Dołhańczuk-Śródka, A.
Ziembik, Z.
Powiązania:
https://bibliotekanauki.pl/articles/388183.pdf
Data publikacji:
2013
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
137Cs
40K
food
weighted dose
żywność
promieniowanie jonizujące
Opis:
The purpose of the study was to estimate the effective dose of ionising radiation absorbed in consequence of consuming the selected food products for relevant age groups and estimation of the resulting risk. The study was carried out with the use of food products, part of which was produced in the area contaminated with 137Cs released after the Chernobyl Nuclear Power Plant explosion. On the basis of the obtained study results, it can be stated that in consequence of consumption of the selected food products, people may receive increased radiation doses from artificial radioactive isotopes, which are one of the components of the annual effective dose. Taking into consideration other sources of ionising radiation, which are not present in food, one should assume that 137Cs contained in food has a little share in the total radiation dose absorbed by the inhabitants of the studied region.
Celem tego badania było określenie skutecznej dawki promieniowania jonizującego, pochłoniętej wskutek spożywania wybranych produktów żywnościowych. W ocenie ryzyka uwzględniono grupy wiekowe ludności. Badania przeprowadzono z wykorzystaniem produktów spożywczych, z których część została wyprodukowana na obszarach skażonych 137Cs, uwolnionym po wybuchu elektrowni jądrowej w Czarnobylu. Wyniki przeprowadzonych badań potwierdzają zwiększenie dawki promieniowania, pochodzącej od sztucznych izotopów promieniotwórczych. Biorąc pod uwagę inne niż żywność źródła promieniowania jonizującego, można stwierdzić, że 137Cs zawarty w artykułach spożywczych ma mały udział w całkowitej dawce promieniowania pochłoniętego przez mieszkańców badanego regionu.
Źródło:
Ecological Chemistry and Engineering. A; 2013, 20, 9; 991-1008
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First observation of vertically aligned cesium doped ZnO nanorods as an efficient electron transporter in polymer solar cell
Autorzy:
Ahmadi, M.
Rashidi Dafeh, S.
Ghazanfarpour, S.
Khanzadeh, M.
Powiązania:
https://bibliotekanauki.pl/articles/355661.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
inverted polymer solar cell
Cs doped ZnO nanorod
electron transporter
Opis:
Single crystalline cesium doped ZnO nanorods with homogeneous size and shape were grown hydrothermally on ITO substrates that are presented in our previous work. According to the previous work, XRD analysis showed that cesium doped ZnO nanorods are wurtzite single crystals and are grown preferentially along the c-axis. Also, the electrical conductivity of doped ZnO showed higher values for the 1% cesium, which confirmed incorporation of the cesium dopant. Cesium doped ZnO nanorods are suitable candidates for applications in solar cells. So, in this research, we employed cesium doped ZnO nanorods with the different dopant concentration in inverted polymer solar cell. By comparing the effect of doped ZnO nanorods with diverse dopant concentration (0, 0.5, 1.0, 1.5 and 2%) on the performance of devices, 1.0% cesium doped ZnO was found as the most effective doping level among the selected doping concentrations. Also, using 1.0% cesium doped ZnO nanorods, Jsc of 8.21 mA/cm2, Voc of 0.541V and Fill Factor of 63.01% were achieved, which led to power conversion efficiency of 2.80%.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 4; 1571-1574
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Karty kontrolne X i R dla rozkładów skośnych - studium przypadku
X and R control chart for skewed distribution - case of study
Autorzy:
Czabak-Górska, I. D.
Powiązania:
https://bibliotekanauki.pl/articles/339927.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Zarządzania Produkcją
Tematy:
rozkład skośny
karty kontrolne
karty kontrolne Shewharta
metoda korekcji asymetrii
metoda CS
skewed distribution
control chart
Shewhart control chart
skewed correction method
CS method
Opis:
To meet the requirements, the products generally should be produced by a process that is stable and repetitive. It is however impossible to produce a certain type of product, in the same company and under the same conditions in such way to produce the get perfect parameters of this product, due to the occurrence of assignable causes. To analyze the stability of the production process (in order to detect assignable causes and statistical process control) used to Shewhart control charts, which are based on the assumption that the distribution of the quality characteristic (so called process distribution) is normal distributed or approximately normal distributed. However, the review of the literature has shown that in practice, the assumption of normality of many quality characteristics this condition doesn't hold, which in turn affects the improper assessment of the process stability. The most common distributions of measurement data, (beyond the normal) is skewed. For skewed population Type I Risk probabilities grow larger as the skewness increases. In this case four approach are plausible: increase the sample size up to a thousand, ignore skewness and use the classic Shewhart control charts, assume that the population distribution of the population is known and take a charts in accordance with the distribution or assume that the distribution of the population is not known and the use of heuristic methods. However, the use of one of the first three methods may prove to be uneconomical (e.g. due to the need to incur additional costs) and even result in incorrect assessment of the stability of the process. „Golden middle” in this situation can be heuristic methods, i.e. method of analysis percentiles distribution, variance weighted method or the method of correction of asymmetry, that were briefly described in this paper. The analysis of heuristic methods allowed for the choice of the least complicated due to the applicability in manufacturing companies. Additionally the studies carried out by the Cahn and Cui, showed that the Type I Risk probabilities of CS method is closer to the standard value of 0.27% than the other presented methods and, therefore, the effectiveness of this approach is much better, so in case study the author used CS method. The main aim of the paper is determine the control limits for the X and R charts based on the skewness correction (SC) method, including the risks associated with incorrect choice of method for determining the control limits. For this purpose, measurement data from a company producing automotive seat frames was analyze. All calculations were made in Statistica and Excel environment.
Źródło:
Zarządzanie Przedsiębiorstwem; 2016, 19, 4; 10-17
1643-4773
Pojawia się w:
Zarządzanie Przedsiębiorstwem
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Idea of the Secondary World in Susanna Clarke’s Piranesi
Autorzy:
Błaszkiewicz, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/2049071.pdf
Data publikacji:
2021-10-06
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
fantasy
secondary world
fairy abduction
medieval
C.S. Lewis
Susanna Clarke
Opis:
The paper seeks to explore the concept of the secondary world as developed in Susanna Clarke’s 2020 fantasy novel Piranesi. The analysis is conducted in the context of the evolution of the literary motif of fairy abduction between the classic medieval texts and its current incarnations in modern speculative fiction. The argument relates the unique secondary world model found in Clarke’s novel to the extensive intertextual relationship Piranesi has with the tradition of portal fantasy narratives, and discusses it in the context of the progressive cognitive internalisation of the perception of the fantastic which has taken place between the traditional medieval paradigm and contemporary fantasy fiction.
Źródło:
Anglica. An International Journal of English Studies; 2021, 30(1); 111-132
0860-5734
Pojawia się w:
Anglica. An International Journal of English Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of wind erosion rates of Mongolian Plateau by using 137Cs tracing technique
Ocena intensywnosci erozji eolicznej Plaskowyzu Mongolskiego z wykorzystaniem techniki oznaczania 137Cs
Autorzy:
Qi, Y
Liu, J.
Shi, H.
Zhuang, D.
Hu, Y.
Powiązania:
https://bibliotekanauki.pl/articles/81677.pdf
Data publikacji:
2010
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
estimation
wind erosion
erosion rate
Mongolian Plateau
137Cs tracing technique
Opis:
Wind erosion is one of the major environmental problems in semi-arid and arid regions. Here we established a transect from northwest (Tariat, Mongolia) to southeast (Xilingol, Inner Mongolia of China) across the Mongolian Plateau, and selected eight sampling sites along the transect. We then estimated the soil wind erosion rates by using the 137Cs tracing technique and examined their spatial dynamics. In the Mongolia section (from Tariat to Sainshand), the wind erosion rate increased gradually with vegetation type and climatic regimes; the wind erosion process was controlled by physical factors such as annual precipitation and vegetation coverage, etc. While in the China section (Inner Mongolia), the wind erosion rates of Xilinhot, Zhengxiangbai Banner and Taipusi Banner were thrice as much as those of Bayannur of Mongolia, although these four sites were all dominated by typical steppe. Besides the physical factors, higher population density and livestock carrying level should be responsible for the higher wind erosion rates in these regions of Inner Mongolia.
W pracy przedstawiono wyniki badań intensywności erozji eolicznej Płaskowyżu Mongolskiego, określonej na podstawie ośmiu prób gruntu pobranego wzdłuż transektu o długości około 1400 km, przebiegającego przez teren Mongolii i Chin. Do oceny intensywności erozji wykorzystano technikę oznaczania 137Cs w wierzchnich warstwach gruntu do głębokości 30 cm. Stwierdzono, że intensywność erozji w analizowanym transekcie od północnego-zachodu stopniowo wzrasta wraz ze zmianami reżimu klimatycznego (zmniejszania się rocznej wysokości opadów), a także zmianami pokrycia roślinnego. Chińska część Płaskowyżu o charakterze stepowym jest trzykrotnie bardziej intensywnie erodowana. Oprócz czynników fizycznych, na intensywność procesu erozji eolicznej wpływa większa gęstość zaludnienia Płaskowyżu na terenie Chin, a także większe pogłowie zwierząt hodowlanych.
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation; 2010, 42, 1; 197-208
0208-5771
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radionuclide activities in sediments on the northern coast of Spitsbergen
Autorzy:
Wojtasik, Barbara
Świrydowicz, Sławomir
Burska, Dorota
Nowiński, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/2042160.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
137Cs
Arctic
fjords
freshwater sediments
marine sediments
natural radionuclides
Svalbard
Źródło:
Polish Polar Research; 2017, 38, 3; 291-312
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie 137Cs do modelowania procesów erozji i akumulacji w obrębie lessowej doliny użytkowanej rolniczo
Autorzy:
Poręba, G. J.
Powiązania:
https://bibliotekanauki.pl/articles/295008.pdf
Data publikacji:
2008
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
137Cs
modelowania procesów erozji i akumulacji
dolinna lessowa
użytkowanie rolnicze
Źródło:
Landform Analysis; 2008, 9; 369-372
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accumulation properties of Norway spruce (Picea abies) for different radionuclides
Autorzy:
Tomankiewicz, E.
Mietelski, J.
Gaca, P.
Błażej, S.
Powiązania:
https://bibliotekanauki.pl/articles/148612.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
137Cs
50Sr
thorium
spruce tree
Tatra Mts.
aggregation coefficients
Opis:
The paper presents results for the 137Cs, 90Sr, 40K activity concentrations and 228Th/232Th, 230Th/232Th activity ratios in several samples needles from two Norway spruce (Picea abies) trees and two soil samples collected in the Tatra Mountains (Poland) area. Activities for artificial 137Cs and 90Sr show moderate values. Statistically different values were found between the mean concentration of 90Sr and 137Cs in current (C) and two years old (C+2) needles of the first tree, whereas for potassium no significant difference was observed. For the second, fallen tree, no significant difference between the mean activity concentration in needles for C+1 and C+2 was found for each radionuclide, but much lower levels of 137Cs contamination were observed. Observed values of the aggregation coefficients for 137Cs and 90Sr are presented.
Źródło:
Nukleonika; 2006, 51,suppl.2; 59-67
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radionuclides 137Cs and 40K in the soils of the Tatra National Park (TPN, Poland)
Autorzy:
Kubica, B.
Skiba, S.
Drewnik, M.
Stobiński, M.
Kubica, M.
Gołaś, J.
Misiak, R.
Powiązania:
https://bibliotekanauki.pl/articles/148560.pdf
Data publikacji:
2010
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
137Cs
40K
Tatra Mts.
gamma spectrometry
maps of the radioisotopes
Opis:
The paper presents the results of radioactivity determination of artificial 137Cs and natural 40K in soil samples taken from the Tatra Mountains in Poland (Tatra National Park – TPN). Soil samples were collected as the cores of 10 cm in diameter and 10 cm in depth. These cores were divided into 3 slices. It has been found that the content of 137Cs was the highest at the sites of the altitude over 1300 m a.s.l. The values of 137Cs concentration in the soils examined varied – from 55.8 Bqźkg–1 (dry mass) (417.8 Bqźm–2) for the Tomanowa Pass (1685 m a.s.l.) to 5111 Bqźkg–1 (dry mass) (8400 Bqźm–2) for the Krzyzne Pass (2112 m a.s.l.). In most cases, the values were lower than the average radiocaesium concentration established for Poland.
Źródło:
Nukleonika; 2010, 55, 3; 377-386
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investment Casting vs Replicast CS Considered in Terms of the Ceramic Mould Making and Dimensional Accuracy of Castings
Autorzy:
Karwiński, A.
Haratym, R.
Biernacki, R.
Soroczyński, A.
Powiązania:
https://bibliotekanauki.pl/articles/380128.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
investment casting
lost foam patterns
casting quality
Replicast CS
odlewnia
jakość odlewów
Opis:
The article presents an analysis of the applicability of the Replicast CS process as an alternative to the investment casting process, considered in terms of the dimensional accuracy of castings. Ceramic shell moulds were based on the Ekosil binder and a wide range of ceramic materials, such as crystalline quartz, fused silica, aluminosilicates and zirconium silicate. The linear dimensions were measured with a Zeiss UMC 550 machine that allowed reducing to minimum the measurement uncertainty.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1; 45-48
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electric Dipole Transition Parameters for Low-Lying Levels for Neutral Actinium
Autorzy:
Özdemır, L.
Ürer, G.
Powiązania:
https://bibliotekanauki.pl/articles/1535616.pdf
Data publikacji:
2010-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
31.15.ag
31.15.aj
31.30.-i
32.70.Cs
Opis:
We have calculated the energies of some low-lying levels ($6d7s^2,$ $6d^2 7s,$ $6d7s7p$ and $6d^27p$) and electric dipole transition parameters (wavelengths, oscillator strengths and transition probabilities) between them for neutral actinium (Z=89). In the calculations, the correlation and relativistic effects are considered by multiconfiguration Hartree-Fock method within the framework Breit-Pauli Hamiltonian. The results obtained are compared with the available experimental and theoretical works in the literature.
Źródło:
Acta Physica Polonica A; 2010, 118, 4; 563-569
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electronic Spaces and Classification of Multielectron States in Multicentre Systems
Autorzy:
Chatterjee, R.
Lulek, T.
Biel, J. K.
Powiązania:
https://bibliotekanauki.pl/articles/1920612.pdf
Data publikacji:
1992-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.40.+m
33.10.Cs
71.10.+x
74.60.-w
Opis:
Electronic structure of a crystal within the tight binding model is described in terms of fibre bundle formalism, with the base and fiber being respectively the set of all sites and the single-centre space of electron spinorbitals. It is based on the Weyl's duality between the symmetric group and the unitary group, and paves the way for a Racah-Wigner type of description of electronic structure in multicentre systems.
Źródło:
Acta Physica Polonica A; 1992, 81, 4-5; 467-474
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Developing 21st Century Skills in a Foreign Language Classroom: EFL Student Teachers’ Beliefs and Self-Awareness
Autorzy:
Baran-Łucarz, Małgorzata
Klimas, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2016205.pdf
Data publikacji:
2020
Wydawca:
Komisja Nauk Filologicznych Polskiej Akademii Nauk, Oddział we Wrocławiu
Tematy:
21st century skills
4Cs
student teachers
teacher beliefs
EFL teaching
Opis:
This study reports on EFL student teachers’ opinions, beliefs and their self-awareness of developing 21st century skills, particularly the 4Cs: critical thinking, creativity, communication, collaboration, in the Polish educational context. A questionnaire designed for the purpose of this study was administered to 53 participants who were all student teachers of English enrolled in bachelor’s and master’s degree programmes. The survey results indicate that although the majority of the participants showed a low level of understanding of what 21st century skills are, they were fairly positive about integrating them into foreign language classroom instruction. At the same time, the teacher trainees tended to overrate their own abilities to develop the 4Cs in their future students. These findings suggest a greater need to raise FL teachers’ awareness as to the implementation of particular 21st century skills in the classroom. It is also postulated that enhancing such skills among student teachers in the course of teacher training is a prerequisite for 21st century skills-oriented pedagogy.
Źródło:
Academic Journal of Modern Philology; 2020, 10; 23-38
2299-7164
2353-3218
Pojawia się w:
Academic Journal of Modern Philology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transition Probabilities and Oscillator Strengths for E1 Transitions of Ce III
Autorzy:
Karaçoban Usta, B.
Powiązania:
https://bibliotekanauki.pl/articles/1189932.pdf
Data publikacji:
2015-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
31.15.ag
31.15.aj
31.30.-i
32.70.Cs
Opis:
We report calculations of wavelengths, oscillator strengths, and transition probabilities (or rates) for electric dipole (E1) transitions in doubly ionized cerium (Ce III, Z=58), using the relativistic Hartree-Fock method developed by Cowan. Comparisons are made with the previously reported available calculations and experiments in literature.
Źródło:
Acta Physica Polonica A; 2015, 127, 6; 1605-1615
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energies and Radiative Transition Parameters for Mg-Like Tungsten
Autorzy:
Özdemír, L.
Günday Konan, G.
Kabakçi, S.
Powiązania:
https://bibliotekanauki.pl/articles/1399262.pdf
Data publikacji:
2013-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
31.15.ag
31.15.aj
31.30.-i
32.70.Cs
Opis:
By applying AUTOSTRUCTURE code, the energies and transitions for allowed (E1) and forbidden (E2, M1, and M2) lines for low-lying configurations in magnesium-like tungsten $(W^{62+})$ are studied. The electron correlation and relativistic effects are included in computations. Good agreement between our results and available other results are found. The data for E2, M1 and M2 besides some E1 transitions for low-lying levels are presented for the first time.
Źródło:
Acta Physica Polonica A; 2013, 124, 4; 649-657
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transition Parameters for Doubly Ionized Lutetium
Autorzy:
Karaçoban, B.
Özdemír, L.
Powiązania:
https://bibliotekanauki.pl/articles/1400123.pdf
Data publikacji:
2013-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
31.15.ag
31.15.aj
31.30.-i
32.70.Cs
Opis:
Using the relativistic Hartree-Fock method developed by Cowan, we calculated the electric dipole (E1) transition parameters such as the wavelengths, the weighted oscillator strengths, and the transition probabilities (or rates) for doubly ionized lutetium (Lu III, Z=71). We compared the results with available calculations and experiments in literature. A discussion of these calculations for Lu III in this study has also been made in view of the relativistic Hartree-Fock method.
Źródło:
Acta Physica Polonica A; 2013, 123, 4; 651-667
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time-of-Flight Positron Emission Tomography with Resistive Plate Chamber Detectors: An Unlikely but Promising Approach
Autorzy:
Couceiro, M.
Crespo, P.
Blanco, A.
Ferreira, N.
Mendes, L.
Ferreira Marques, R.
Fonte, P.
Powiązania:
https://bibliotekanauki.pl/articles/1402607.pdf
Data publikacji:
2015-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.57.uk
29.40.Cs
87.57.cf
87.57.cm
Opis:
The cost-effectiveness of resistive plate chamber detectors and their very good timing characteristics, open the possibility to build affordable time-of-flight positron emission tomography systems with a large axial field-of-view. Simulations suggest that, under reasonable assumptions, the absolute 3D true sensitivity, spatial resolution, and noise equivalent count rate of such systems for human whole-body screening, may exceed that of present crystal-based PET technology. However, due to the lack of energy resolution, although having energy sensitivity, the scatter fraction is expected to be considerably higher than that presented by crystal-based PET scanners. In the present paper, the simulation work done so far to access the expected performance of a resistive plate chamber time-of-flight-PET system with 2400 mm length axial field-of-view, a time resolution of 300 ps full width at half maximum for photons pairs, and depth-of-interaction information, will be revised.
Źródło:
Acta Physica Polonica A; 2015, 127, 5; 1453-1461
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Investigation of Few-Nucleon Dynamics at Medium Energies
Autorzy:
Khatri, G.
Bodek, K.
Ciepał, I.
Kalantar-Nayestanaki, N.
Kistryn, St.
Kłos, B.
Kozela, A.
Magiera, A.
Mazumdar, I.
Messchendorp, J.
Parol, W.
Rozpędzik, D.
Skwira-Chalot, I.
Stephan, E.
Wrońska, A.
Zejma, J.
Powiązania:
https://bibliotekanauki.pl/articles/1402633.pdf
Data publikacji:
2015-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
21.30.-x
24.70.+s
25.10,+s
13.75.Cs
Opis:
An experiment, with unpolarized deuteron beam of 160 MeV impinging on liquid hydrogen and liquid deuterium targets, was carried out using BINA detector at KVI, in Groningen, the Netherlands. Data were collected for the purpose of obtaining high precision differential cross-section for the deuteron break-up reaction. The elastic scattering data were also collected alongside. We present here the methods applied in analysis of data collected in the backward part of the detector.
Źródło:
Acta Physica Polonica A; 2015, 127, 5; 1529-1530
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
137Cs transfer from local particulate matter to lichens and mosses
Autorzy:
Kłos, A.
Rajfur, M.
Wacławek, M.
Wacławek, W.
Powiązania:
https://bibliotekanauki.pl/articles/148173.pdf
Data publikacji:
2009
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
radioactivity
137Cs transfer to biomonitors
lichens
mosses
lichens transplantation
Chernobyl fallout
Opis:
Data on 137Cs radioactivity in the lichen Hypogymnia physodes and the moss Pleurozium schreberi were compared with the 137Cs content in soil for a Chernobyl 137Cs contaminated forest area of Bory Stobrawskie, southern Poland. The study area partly overlaps the so-called Opole Anomaly, where 137Cs radioactivity of forest upper soil layer in some places is 100 times greater than the average for Poland. A clear correlation between 137Cs radioactivity in the upper soil layers and in lichens and mosses was found, the relationship of which can be expressed as follows: Alichen(moss) = a + b·ln(ΔAs.), where (ΔAs.) is the radioactivity of mobile 137Cs cations, leached from soil to an HCl solution of pH = 3.9. Lichen transplantation method was used to demonstrate the transfer of 137Cs from soil via local soil particulate matter to transplanted epiphytic lichens. During 220 days of exposure, 137Cs radioactivity in the transplanted lichens increased by 145 Bq·kg–1 (d.m.). Atmospheric activity of 137Cs during this time was low (on average it was 5.4 μBq·m–3). The lichens were transplanted from regions with low 137Cs soil radioactivity (ca. 30 Bq·kg–1 (d.m.)) to areas where it exceeded 1400 Bq·kg–1 (d.m.).
Źródło:
Nukleonika; 2009, 54, 4; 297-303
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Resistance of heather plants (Calluna vulgaris L.) to cesium toxicity
Autorzy:
Bystrzejewska-Piotrowska, G.
Drożdż, A.
Stęborowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/148799.pdf
Data publikacji:
2005
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
radiocesium
cesium toxicity
heather plants
K/Cs discrimination
potassium transport
potassium uptake
Opis:
Experiments were carried out to determine uptake and distribution of 137Cs, and total isotopes of Cs and K in plants of heather (Calluna vulgaris) growing at two levels of CsCl: 0.03 and 0.3 mM. Levels of Cs and K were determined in soil and in parts of plants: roots, stem, leaves and flowers. Also calculated were: (i) transfer factor of Cs and K from soil to parts of plant and (ii) discrimination of K by Cs during the transport of Cs from roots to aboveground parts of plants, expressed as K/Cs discrimination factor. The results confirmed that heather plants are hyper-accumulators of cesium, because the accumulation of Cs in shoot was much greater than in roots. The K level in heather did not change at Cs concentrations as high as 8-fold Cs level in this plant. Heather plants seem to be relatively resistant to cesium toxicity at 0.3 mM of CsCl; the effect of exposure to CsCl at this concentration was exerted only on roots, without affecting leaves and flowers. These results supply new information on the interactions between Cs and K nutrition in plants; they also point to a possible role of heather in redistribution of the radiocesium pollution in the forest ecosystem.
Źródło:
Nukleonika; 2005, 50, 1; 31-35
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of Acoustic Impedance of Walls Based on Acoustic Field Parameter Values Measured in the Room
Autorzy:
Piechowicz, J.
Czajka, I.
Powiązania:
https://bibliotekanauki.pl/articles/1400092.pdf
Data publikacji:
2013-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
43.20.Ye
43.55.Ev
43.55.Cs
43.55.Dt
Opis:
Acoustic field in enclosed rooms in the low frequency range can be described by the wave model, based on solution of the wave equation. Solution to the wave equation for acoustic field in the room can be obtained using numerical procedures, e.g. the boundary elements method. Determination of acoustic impedance of the room walls surface material, based on the knowledge of the distribution of acoustic pressure amplitudes in the enclosed space, requires application of the inverse boundary elements method and gathering a proper set of input data. The paper presents the possibilities of analysis of acoustic properties for industrial-type rooms, by using inverse methods in the low frequency range.
Źródło:
Acta Physica Polonica A; 2013, 123, 6; 1068-1071
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the 4Ps & 4Cs of Green Logistics Marketing Mix
Autorzy:
Ozturkoglu, Yucel
Powiązania:
https://bibliotekanauki.pl/articles/504279.pdf
Data publikacji:
2016
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
Green Marketing
Marketing Mix
4Cs
4Ps
Green Logistics
Reverse Logistics
Opis:
The world is getting more polluted each day. Fortunately, consumers are now more aware and concerned about environmental issues. Customers are expecting the same sensitivity to the environment in both marketing and production strategies of companies. The main aim of this paper is to develop a framework for understanding the integration of green marketing concept with the marketing mix both in the form of 4Ps (price, place, promotion, product) and 4Cs (communication, costs, convenience, customer). This paper will deal with the environmentaly friendly measures to be taken by marketing organizations. In addition to the green marketing sub-mix, some important strategies, including green logistics and reverse logistics topics, are handled extensively with the aim of completing the framework of the green marketing.
Źródło:
Logistics and Transport; 2016, 29, 1; 5-18
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Humor chrześcijanina w relacji do wybranych wartości w świetle twórczości Gilberta Keitha Chestertona i Clive’a Staplesa Lewisa
Christian Humor in Relation to Other Values in the Light of the Works of Gilbert Keith Chesterton and Clive Staples Lewis
Autorzy:
Wocial, Michał
Powiązania:
https://bibliotekanauki.pl/articles/944281.pdf
Data publikacji:
2020-03-31
Wydawca:
Towarzystwo Naukowe Franciszka Salezego
Tematy:
humor a wartości
C.S. Lewis
G.K. Chesterton
humor and values
Opis:
Based on the work of Gilbert Keith Chesterton and Clive Staples Lewis, the author analyzes the role of humor in the Christian spirituality and the connection between humor and other values such as love, humility, freedom and truth. One of the conclusions is that both writers regarded and showed humor as an indicator, of the authenticity and depth are lived and realized in the above mentioned values.
Na podstawie twórczości Gilberta Keitha Chestertona i Clive’a Staplesa Lewisa autor analizuje rolę humoru w duchowości chrześcijanina i związek humoru z wybranymi wartościami: pokorą, miłością, wolnością i prawdą. Jednym z wniosków jest ten, że obaj tytułowi pisarze uważali i ukazywali humor jako rodzaj indykatora, który wskazuje, z jaką autentycznością i głębią są przeżywane i realizowane wymienione wartości.
Źródło:
Seminare. Poszukiwania naukowe; 2020, 41, 1; 21-34
1232-8766
Pojawia się w:
Seminare. Poszukiwania naukowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of RRAP reliability optimization as a test of nature-inspired algorithms
Autorzy:
Pieprzycki, Adam
Filipowicz, Bogusław
Powiązania:
https://bibliotekanauki.pl/articles/35533466.pdf
Data publikacji:
2024-02-15
Wydawca:
Akademia Tarnowska
Tematy:
reliability optimization
RRAP
Firefly Algorithm (FA)
Cuckoo Search (CS)
ANOVA
Lévy flight
Opis:
This paper presents a discussion on the application of two swarm intelligence algorithms, Cuckoo Search (CS) and Firey Algorithm (FA), to maximize the reliability of two complex systems with resource constraints, which have been well-known in the literature. The reliability of the systems is also evaluated using several classical methods. The results indicate that although the CS algorithm, which utilizes Lévy flight, is eective, the FA rey algorithm outperformed it in the presented optimization tasks, within the given parameter range. These ndings contribute to the ongoing discussion on using nature-inspired algorithms for solving Reliability Redundancy Allocation Problem (RRAP) problems, and the two test scenarios used in the study can be useful for validating other algorithms in RRAP problems. The paper introduces metrics and methods for analyzing and comparing the performance of algorithms in RRAP optimization, including the comparison of criterion function values and other parameters introduced in the paper. Additionally, the paper discusses statistical analyses of variance (ANOVA) with post-hoc RIR Tuckey tests.
Źródło:
Science, Technology and Innovation; 2023, 18, 3-4; 1-14
2544-9125
Pojawia się w:
Science, Technology and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sedimentation rates and dating of bottom sediments in the Southern Baltic Sea region
Autorzy:
Suplińska, M. M.
Pietrzak-Flis, Z.
Powiązania:
https://bibliotekanauki.pl/articles/146241.pdf
Data publikacji:
2008
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
sedimentation rate
210Pb
137Cs
239,240Pu
Southern Baltic
bottom sediment
Opis:
Sedimentation rates and dating of bottom sediments were estimated in two sampling stations of the Gulf of Gdańsk and in four stations in the open sea area. Estimations were based on vertical distributions of 210Pb, 137Cs and 239,240Pu activity concentrations in sediment core samples taken in 1998–2007. Two dating models based on changes of activity concentrations of 210Pbunsup were used: 1) CF:CS (Constant Flux Constant Sedimentation rate-model) and 2) CRS (Constant Rate of Supply-model). 137Cs and 239,240Pu were applied as time markers. 137Cs originates mostly from the Chernobyl accident in 1986, whereas 239,240Pu comes from the global fallout in 1963. The validation of the 210Pb methods was performed by activity peak of 137Cs and 239,240Pu. Sediment accumulation rate (g·cm–2·y–1) was constant along sediment core. Annually accumulated layer, (mm·y–1) decreased with sediment depth in all the locations. In the Gulf of Gdańsk sedimentation rate in the upper layer was about 3.6 mm·y–1, and it decreased in the deeper layers to about 1.1 mm·y–1. Sedimentation rates in the open sea area were lower than in the gulf region and the lowest was observed in the Bornholm Deep, being about 0.95 mm·y–1 in the upper layer and 0.35 mm·y–1 in the deeper layer. The growth of a 5 cm thick layer took 27–37 years in the Gulf of Gdańsk, and 61–105 years in the open sea area. It is suggested that the mean values obtained from the models would give a most reliable estimation of the sedimentation rates.
Źródło:
Nukleonika; 2008, 53, suppl. 2; 105-111
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the influence of soil properties on 137Cs accumulation in Of horizon in forest soils
Autorzy:
Ziembik, Z.
Dołhańczuk-Śródka, A.
Wacławek, M.
Powiązania:
https://bibliotekanauki.pl/articles/148398.pdf
Data publikacji:
2010
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
137Cs
forest soil
physicochemical parameters
cluster analysis (CA)
principal component analysis (PCA)
Opis:
The work focuses on assessment of soil physicochemical parameters influence on 137Cs accumulation in Of soil horizon. Besides organic matter content and pH, the parameters related to sorption properties and mobile ions concentration were considered. The data were transformed using Box-Cox formula. To find mutual relationships between variables cluster analysis (CA) and principal components analysis (PCA) were used. It was found that the transformed physicochemical parameters in Of horizon are more or less related with each other but no linear or nearly linear relationships between 137Cs activity and physicochemical parameters were found.
Źródło:
Nukleonika; 2010, 55, 2; 205-212
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the dual control system operation during failure conditions
Analiza działania dublowanego systemu sterowania w stanach awaryjnych
Autorzy:
Jakliński, P.
Powiązania:
https://bibliotekanauki.pl/articles/1366184.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
silnik lotniczy
certyfikacja
badania stanowiskowe
CS-E
aircraft engine
certification process
bench testing
Opis:
The paper presents an analysis of the ASz-62IR-16E aircraft engine dual control system during failure conditions. The studies which are part of the certification tests in accordance with CS-E are described. The engine was equipped with a prototype electronic fuel injection control system. The experiments were conducted on the ASz-62IR-series piston aircraft engine test stand located in WSK "PZL-Kalisz" S.A. Robustness of the electronic control system has been studied for a single sensor failures and the effects of these failures have been evaluated. The tests included simulated failures of engine speed, manifold air pressure and engine temperature sensors. The results of these tests were described and presented on the time-domain charts. The paper concludes with an analysis and a summary.
W artykule przedstawiono analizę działania dublowanego systemu sterowania silnika lotniczego ASz-62IR-16E w stanach awaryjnych. Opisano badania stanowiące fragment próby dowodowej zgodnej z normą CS-E. Silnik wyposażony był w prototypowy, elektroniczny układ sterowania wtryskiem paliwa. Próby wykonano na stoisku hamownianym silników lotniczych tłokowych ASz-62IR w WSK "PZL-Kalisz" S.A. Badano odporność układu na pojedyncze awarie czujników oraz oceniano skutki tych awarii. Wykonano próby, w których symulowano awarie czujników prędkości obrotowej, ciśnienia powietrza w kolektorze dolotowym i temperatury silnika. Wyniki tych prób opisano i przedstawiono na wykresach przebiegów czasowych oraz przeprowadzono ich analizę. Artykuł zakończono podsumowaniem.
Źródło:
Eksploatacja i Niezawodność; 2013, 15, 3; 266-272
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie Izotopu 137CS do badania erozji gleby w obszarach lessowych użytkowanych rolniczo
Use of 137Cs isotope in research of soil erosion in loessial agricultural areas
Autorzy:
Poreba, G.J.
Powiązania:
https://bibliotekanauki.pl/articles/2084653.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
tereny rolnicze
uzytkowanie rolnicze
obszary lessowe
erozja gleb
gleby
izotopy
izotop 137 Cs
Opis:
This work presents a use of the ¹³⁷Cs method in the reseach of soil erosion and sedimentation on the agricultural loessial land. There is an urgent need to obtain reliable quantitative data of the soil translocation in agricultural areas and to choose an effective method of soil conservation. After deposition on the land surface, ¹³⁷Cs is rapidly and strongly adsorbed by soil particles. The isotope has been present in the environment since the beginning of nuclear weapon testing and nowadays it is a part of many ecosystems. ¹³⁷Cs is therefore a valuable tracer to study soil erosion and sedimentation rate. Advantages and limitations of the method are discussed in this articles. The activity of the ¹³⁷Cs in soil samples from 4 slopes was measured by means of high-resolution gamma spectrometry and then the ¹³⁷Cs inventories for sampling points were calculated. The ¹³⁷Cs inventories relate to the erosion and deposition rates. The value of soil erosion was calculated by using the proportional model as well as the three mass balance models. The ¹³⁷Cs inventory for studied cultivated field ranges from less than 1.0 up to more than 10.0 kBq m⁻². Differences in ¹³⁷Cs inventory distribution on the terraced and unterraced slopes are clear. The results show that agricultural terraces in the study area were created alter the main period of cesium fallout and that the intensity of soil erosion in the study area appear to be significant.
Źródło:
Prace i Studia Geograficzne; 2010, 45; 125-142
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Phytoremediation of 137Cs Contaminated Soils During the Cultivation of Nectar-Pollinating Plants
Autorzy:
Razanov, Serhii
Kutsenko, Mykola
Klymenko, Mykola
Bakhmat, Mykola
Klymenko, Oleksandr
Bakhmat, Oleh
Holubieva, Tetiana
Kovalchuk, Nataliia
Mazurak, Oksana
Powiązania:
https://bibliotekanauki.pl/articles/24201711.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
soil
milk thistle
white melilot
plant
phytoremediation
137Cs
accumulation coefficient
danger coefficient
Opis:
The man-made activity of mankind has led to the emergence of many global problems and caused the deterioration of the quality of the natural environment (air, water, soil). Of particular concern is the contamination of agricultural land with toxicants, in particular, radionuclides, which, entering the soil – plant – human body food chain, can reach toxic levels. Therefore, an important task is the removal of hazardous substances from the soil. Phytoremediation can be one of the effective methods for reducing its pollution. The article examines the effectiveness of phytoremediation of soils contaminated as a result of the accident at the Chernobyl nuclear power plant in certain territories of Polissia of Ukraine (Korosten district of Zhytomyr region). Nectar-pollinating plants were selected for the research, which was carried out for two years: great globe-thistle (Echinops sphaerocephalus), milk thistle (Silybum marianum), and white melilot (Melilotus albus). The results of the research showed that in the dry vegetative mass of milk thistle, great globe-thistle, and white melilot, the specific activity of 137Cs over the two years of research was in the range from 30.8 Bq/kg to 238.5 Bq/kg, the accumulation coefficient – from 0.135 to 0.985, and the hazard coefficient – from 0.055 to 0.395. The highest indicators of specific activity and accumulation coefficient of 137Cs were observed in the vegetative mass of the white melilot, which amounted to 238.5 Bq/kg and 0.96, respectively, comparatively lower values – 2.3 times and 2.3 times were found in the vegetative mass of milk thistle, 2.8 times and 7.1 times – in the vegetative mass of the great globe-thistle. At this level of accumulation of 137Cs in the vegetative mass of nectarine plants from the soil, on average, over two years of research, 1130550 Bq of this radionuclide was removed from the soil per hectare of agricultural land with milk thistle, 621250 Bq with great globe-thistle, and 2851650 Bq with white melilot. The removal of 137Cs with the vegetative mass of nectarine plants reduced the content of this radionuclide in the soil per 1 kg – from 3.4% to 8% on average over two years of research.
Źródło:
Journal of Ecological Engineering; 2023, 24, 5; 316--321
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie izotopu Cs-137 do oceny erozji gleby na Pojezierzu Suwalskim
Soil erosion assessment using Cs-137 radionuclide in the Suwalki Lakeland
Autorzy:
Smolska, E.
Powiązania:
https://bibliotekanauki.pl/articles/2084289.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
izotop 137 Cs
ocena
erozja gleb
gleby
Pojezierze Suwalskie
zastosowanie
obszary mlodoglacjalne
depozycja zanieczyszczen
Opis:
The aim of studies was the recognition of the contemporary denudation considering tillage translocation and water soil erosion. This study was performed in the typical last glacial relief. The Cs-137 inventory was analysed along two hillslope profiles and at their footslopes. The value of soil erosion and sedimentation was calculated using the proportional model and the simplified mass balance model. Studies showed that eroded soil from upper and middle segments of the slopes was re-deposited on concave segments of the slopes. The erosion rate was 0.5-1.6 mm on the top of hills and 0.8-3.2 mm on their slopes. The deposition occurs on the concave slope at rate of 3.8-6.6 mm per year on average. Erosion-deposition balance indicate that the small part of eroded soil was exported to the valley bottom and bottom of depression. The share of the water rill and interrill erosion in the total of topsoil erosion is range from 1 to 10% depending on used model. Tillage translocation is the main process shaped a small hills in the last glacial ares.
Źródło:
Prace i Studia Geograficzne; 2013, 51; 91-104
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Damped Zero-Pseudorandom Noise OFDM Systems
Autorzy:
Esmaiel, H.
Powiązania:
https://bibliotekanauki.pl/articles/225983.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
time reversal
TR
channel estimation
CE
compressed sensing
CS
orthogonal frequency division multiplexing
OFDM
Opis:
This paper proposed a new OFDM scheme called damped zero-pseudorandom noise orthogonal frequency division multiplexing (DZPN-OFDM) scheme. In the proposed scheme, ZPN-OFDM non-zero part is damped to reduce its energy, thus the mutual interference power in-between the data and training blocks with conservative the pseudo-noise conventional properties required for channel estimation or synchronization. The motivation of this paper is the OFDM long guard interval working in wide dispersion channels, whereas a significant energy is wasted when the conventional ZPN-OFDM is used as well as the BER performance is also degraded. Moreover, the proposed scheme doesn’t duplicate the guard interval to solve the ZPN-OFDM spectrum efficiency loss problem. Both detailed performance analysis and simulation results show that the proposed DZPNOFDM scheme can, indeed, offer significant bit error rate, spectrum efficiency and energy efficiency improvement.
Źródło:
International Journal of Electronics and Telecommunications; 2018, 64, 4; 433-438
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Peculiarities of 137Cs translocation in higher plants under environmental and laboratory conditions
Autorzy:
Marčiulioniene, D.
Lukšiene, B.
Kiponas, D.
Powiązania:
https://bibliotekanauki.pl/articles/146736.pdf
Data publikacji:
2008
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Ignalina NPP vicinity
137Cs
40K
plants
transfer factor
roots
above-ground part
Opis:
Accumulation of technogenic 137Cs in higher plant roots and above-ground part and comparison of 137Cs and 40K transfer from roots to the above-ground part of plant as well as distribution within above-ground part of plant under environmental conditions were investigated. Parallely, the results of the investigations of 137Cs accumulation in the roots and shoots of test-organism Lepidium sativum L. in the model hydroponic system aqueous solution-solid phase-plant were analyzed. Peculiarities of transfer of this radionuclide from roots to shoots during the entire plant growing period under experimental conditions were determined. 137Cs activity in the tested plants of meadow ecotop was on an average 6-fold lower than in the plants of swamp and 10-fold lower than in the plants of forest ecotop. Differences in 137Cs and 40K transfer from roots to the above-ground part of plant and their distribution in plants indicate particular biological metabolism of these radionuclides in plants. Increased levels of 137Cs in soil practically did not affect the 40K transfer from roots to the above-ground part of plants. The results of investigations under natural and laboratory conditions show that increasing contamination of growth medium with 137Cs caused higher accumulation of this radionuclide in roots but its transfer from roots to the above-ground part of plant decreased or changed insignificantly. 137Cs transfer from roots to above-ground part under natural (Artemisia vulgaris) and laboratory (Lepidium sativum) conditions was rather similar.
Źródło:
Nukleonika; 2008, 53, 2; 69-75
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena eksploatacyjno-energetyczna kombajnu Claas Commandor 228 CS podczas zbioru kukurydzy na ziarno
Autorzy:
Sek, T
Przybyl, J
Kowalik, I
Powiązania:
https://bibliotekanauki.pl/articles/797108.pdf
Data publikacji:
1994
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
kombajn Commandor 228 CS
ocena eksploatacyjna
maszyny rolnicze
kukurydza
ocena energetyczna
kombajny
ziarno
zbior
Opis:
The paper presents the evaluation of the use and energetic efficiency of the Claas COMMANDOR 228 CS combine harvester during the harvest of corn for grain. The obtained results were referred to the requirements of the Farm Machinery System and compared with the results of the investigations of adapted Bizon combine harvesters and of the special harvester ABM-480. The investigations proved high quality of the harvester performance and its almost 3 times as high effectiveness when compared to the adapted Bizon combine harvesters.
W pracy przedstawiono oceną eksploatacyjno-enrgetyczną kombajnu COMMANDOR 228 CS firmy Class podczas zbioru kukurydzy na ziarno. Wyniki odniesiono do wymagali Systemu Maszyn Rolniczych i porównano z wynikami badań adaptowanych kombajnów zbożowych Bizon i kombajnu specjalnego ABM-480.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 1994, 416; 209-215
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przesiewy zbozami ozimymi i jarymi rzepaku opryskanego herbicydami zawierajacymi chlomazon
Autorzy:
Franek, M
Rola, J.
Powiązania:
https://bibliotekanauki.pl/articles/834128.pdf
Data publikacji:
2000
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Command 360 CS
herbicydy
przesiew
uprawa roslin
Pronap 400 EC
zboza ozime
chlomazon
rzepak ozimy
Command 360 CS preparation
herbicide
resowing
plant cultivation
Pronap 400 EC preparation
winter cereal
clomazone
winter rape
Źródło:
Rośliny Oleiste - Oilseed Crops; 2000, 21, 1; 261-266
1233-8273
Pojawia się w:
Rośliny Oleiste - Oilseed Crops
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected Technological Properties of Liquid Ceramic Slurries Used to Produce Moulds in the Replicast cs Technology
Autorzy:
Kaczorowski, R.
Just, P.
Pacyniak, T.
Powiązania:
https://bibliotekanauki.pl/articles/380254.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Innovative casting material
innovative casting technology
precision casting
thin walled ceramic mould
apparent viscosity
replicast CS technology
innowacyjny materiał odlewniczy
innowacyjna technologia odlewnicza
odlewanie precyzyjne
forma ceramiczna cienkościenna
lepkość pozorna
technologia Replicast CS
Opis:
The study discusses the issues connected with the production of thin-walled ceramic slurry in the replicast cs technology. In the ceramic mould production process, a special role is played by the liquid ceramic slurry used to produce the first layer of the mould. The study examines selected technological properties of liquid ceramic slurries used to produce moulds in the replicas cs technology. The ceramic slurries for the tests were prepared based on the binders Ludox Px30 and Sizol 030, enriched with Refracourse flour. The wettability of the pattern's surface by the liquid ceramic slurry and the dependence of the apparent viscosity on the ceramic flour content in the mixture were determined. The wettability of the pattern surface by the liquid ceramic slurry was determined based on the measurement of the wetting angle. The angle was determined by means of an analysis of the computer image obtained with the use of a CDC camera.
Źródło:
Archives of Foundry Engineering; 2017, 17, 4; 190-194
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electric Dipole Transition Parameters for 5s-5p and 5p-5d Transitions in Doubly Ionized Xenon
Autorzy:
Eser, S.
Özdemir, L.
Powiązania:
https://bibliotekanauki.pl/articles/1032593.pdf
Data publikacji:
2017-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
31.15.ag
32.70.Cs
31.15.aj
31.30.-i
31.15.V-
Opis:
Using the general-purpose relativistic atomic structure package based on the fully relativistic multiconfiguration Dirac-Fock method, we have reported the electric dipole transition (E1) parameters such as wavelengths, weighted oscillator strengths, transition rates (or probabilities) and line strengths for 5s-5p and 5p-5d transitions in Xe²⁺. In calculations, the Breit interaction and quantum electrodynamic effects have been included as perturbations. The calculated values for energy levels including valence and core-valence correlation have been compared with other available experimental and theoretical values in literature. Our transition results can provide useful data for, in particular, experimental works in future.
Źródło:
Acta Physica Polonica A; 2017, 132, 4; 1284-1289
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long-Range Interactions and the Oscillator Strength for the $\text{}^{1}1_{u}, \text{}^{1}0_{u}^{+}$ ← X $\text{}^{1}0_{g}^{+}$ Transitions in Zn$\text{}_{2}$
Autorzy:
Kubkowska, M. K.
Szczęśniak, T. M.
Grycuk, T.
Powiązania:
https://bibliotekanauki.pl/articles/2037211.pdf
Data publikacji:
2004-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
32.70.Cs
32.70.Jz
33.70.-w
34.20.-b
Opis:
The interaction potentials for Zn$\text{}_{2}$ electronic states $\text{}^{1}1\text{}_{u}$ and $\text{}^{1}0_{u}^{+}$ correlated with (4 $\text{}^{1}P_{1}$+4 $\text{}^{1}S_{0}$) asymptote in the long-range region (10-25) Å and the oscillator strength f for the absorption transition to these states are derived experimentally from a careful analysis of the self-broadened resonance 213.8 nm line of Zn. It is found that although the interatomic interactions at so long distances are dominated by resonance potential of the form C$\text{}_{3}$/R$\text{}^{3}$ resulting in the Lorentzian line shape, the parameter C$\text{}_{3}$ and thus f value significantly decrease with R decreasing. This effect proved to be a linear function of R$\text{}^{-1}$ yielding the oscillator strength for the considered line f$\text{}_{0}$=1.456 $\pm$ 0.010 from $R \rightarrow \infty$ extrapolation. This value seems to be the most accurate experimental result as yet and shows that the best theoretical values for this quantity are overestimated. It is suggested that the long-range behaviour of the potential energy curves observed here for the first time represents the effective potentials including dominating resonance interactions and a possible slight contribution of the dispersion interactions as well as the R-dependent spin-orbit interaction.
Źródło:
Acta Physica Polonica A; 2004, 105, 4; 317-328
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Protection and regeneration of esophageal, pharyngeal, and laryngeal mucosa as a major element in therapy of patients with esophageal and extraesophageal reflux symptoms
Autorzy:
Gąsiorowska, Anita
Powiązania:
https://bibliotekanauki.pl/articles/1397420.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
gastroesophageal reflux disease
hyaluronic acid (HA) plus chondroitin sulphate (CS) and poloxamer 407
laryngopharyngeal reflux
Opis:
Treatment of esophageal and extraesophageal reflux syndromes is mainly focused on inhibiting the secretion of hydrochloric acid. In spite of the high efficacy of proton pump inhibitors, approx. 30–60% of GERD patients experience daily symptoms. Beside acid reflux, other factors such as abnormal esophageal peristalsis, visceral hypersensitivity, ineffective esophageal clearance mechanisms, and impaired mucosal barrier also play an important role in generating GERD symptoms. An additional therapeutic proposition is a procedure aimed at improving the defense mechanisms of esophageal mucosa rather than inhibiting the damage-inducing factors. The preparation consisting of hyaluronic acid (HA), chondroitin sulfate (SC) and poloxamer 407 protects against harmful factors (hydrochloric acid, pepsin) and accelerates mucosal healing and regeneration, constituting a substantial element of monotherapy or add-on therapy in patients with gastroesophageal reflux disease.
Źródło:
Polish Journal of Otolaryngology; 2020, 74, 4; 40-45
0030-6657
2300-8423
Pojawia się w:
Polish Journal of Otolaryngology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proces certyfikacji podzespołów statku powietrznego na przykładzie
Certification process of aircraft`s subassemblies based on strenght tests of innovative gyroplane rotor hub
Autorzy:
Sobieszek, A.
Wojtas, M.
Powiązania:
https://bibliotekanauki.pl/articles/213445.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
głowica wiatrakowa
CS 27
przepisy lotnicze
badania wytrzymałościowe
gyroplane rotor hub
aviation regulations
strength tests
Opis:
W artykule przedstawiono proces przygotowawczy certyfikacji, metodologie i przebieg badań weryfikujących podstawowe założenia konstrukcji lotniczej na przykładzie innowacyjnej głowicy wiatrakowca. Przeprowadzono badania czterołopatowej głowicy wiatrakowca weryfikujące wytrzymałość statyczną przy obciążeniach dopuszczalnych, określonych przez siły występujące przy manewrze wyrwania. Scharakteryzowano przebieg badań, metody badawcze oraz weryfikowane parametry. Opisano aspekty prawne dopuszczenia do lotu oraz uzyskania certyfikatu uwzględniając przepisy CS 27, podczęść C - Badania Wytrzymałościowe, według których prowadzono badania. Przedstawione wyniki i wnioski były podstawą do dopuszczenia obiektu do prób w locie przez Urząd Lotnictwa Cywilnego.
This paper describe the preparatory process of certification, methodology and tests which verify the assumptions of aeronautical construction based on innovative gyroplane rotor hub. Presented legal aspects of admission to the flight tests and the Type Certification (TC) taking into account legislation (CS 27 Subpart C - Strength Requirements). In this paper presented tests of innovative four - rotor blades rotor hub which verify static strength up to limit loads. The loads during "pull-up from level flight" maneuver are limit loads. Discussed are tests process, methodology of tests and verified parameters. The results and conclusions were the basis the admission object for flight testing by the Civil Aviation Authority.
Źródło:
Prace Instytutu Lotnictwa; 2015, 4 (241); 73-86
0509-6669
2300-5408
Pojawia się w:
Prace Instytutu Lotnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energies and Lifetimes for Some Excited Levels in La I
Autorzy:
Karaçoban, B.
Özdemir, L.
Powiązania:
https://bibliotekanauki.pl/articles/1812350.pdf
Data publikacji:
2008-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
31.15.ag
31.15.aj
31.15.V-
31.30.-i
32.70.Cs
Opis:
We calculated relativistic energies and Landéfactors for 5d6s², 5d²6s, 5d³, 5d6s7s, 4f6s6p, 5d6s6p, 5d²6p, and 4f5d6s levels in neutral lanthanum (Z=57). We also obtained electric dipole transition energies and lifetimes for some excited levels. The calculations are based upon the multiconfiguration Hartree-Fock method within the framework Breit-Pauli relativistic corrections. Moreover, the results obtained were compared with other calculations and experiments.
Źródło:
Acta Physica Polonica A; 2008, 113, 6; 1609-1618
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ współczesnych ruchów pionowych podłoża na niestabilność infrastruktury budowlano-drogowej
Influence of contemporary vertical movements of the grounds surface on the instability of the civil engineering infrastructure
Autorzy:
Kaszubowski, L. J.
Powiązania:
https://bibliotekanauki.pl/articles/2074273.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
badania geologiczno-inżynieryjne
badania sejsmiczne
CS-5G-1
współczesne ruchy pionowe podłoża
grunty niespoiste
engineering-geological research
seismic research
CS-5G-1 apparatus
contemporary vertical movements the ground
surface
uncompaction processes of soils
Opis:
The author presents the results of the engineering-geological research carried out along of the Potulicka St. and Bohaterów Warszawy Ave. in Szczecin. The analysis relates to geological drillings and made soundings carried out using an SL and ZW. Additionally, author presents use of high resolution seismic research as example to recognize the influence of the present-day vertical movements the ground surface, which have a significant effect on the instability of many parts of the existing technical infrastructure. Seismic high-resolution research carried out by the aid of apparatus CS-5G-1, where the reflection method was used. In the field research, used range Z = 50 ms, allowing the penetration of seismic waves in the Quaternary deposits to a depth of 40 m below terraine level. Author presents example of seismic research in the area of flood embankments of the Chemical Plants in Police (Western Pomerania), which show the existence of present-day vertical movements of the ground surface and which of similar size and in the same way can have a real impact in many areas on the instability of the existing civil engineering infrastructure, and can contribute to serious accidents or even disasters. As shown of the engineering-geological research in the area of Potulicka Street and Bohaterów Warszawy Avenue in Szczecin and seismic investigations, contemporary vertical movements in the Western Pomerania have different average rate of displacement of geological layers from 5–10 mm / year.
Źródło:
Przegląd Geologiczny; 2014, 62, 10/2; 601--608
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiological Dose and Risk Assessment for Selected Residential Regions in Baghdad City, Iraq
Autorzy:
Sabri, Areej Adnan
Al-Tameemi, Nabeel Hashim Ameen
Abdulwahid, Safaa Talib
Mohammad, Abbas Neamah
Powiązania:
https://bibliotekanauki.pl/articles/1071454.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
137Cs
232Th
238U
40K
Baghdad
Natural radioactivity
RESRAD code
radiological hazards
radionuclides
Opis:
Fifty-one surface soil samples were collected from two selected residential areas in Baghdad city (Al-Adhamiya and Al-Sha’ab areas) and analyzed using gamma-ray spectroscopy system. The activity concentrations of 238U, 232Th, 40K and 137Cs for soil samples collected from Al-Adhamiya area ranged from 9.19 to 22.7 Bq/kg, 5.91 to 17.8 Bq/kg, 236.36 to 507.56 Bq/kg and below minimum detectable activity to 3.07 Bq/kg, respectively. For soil samples collected from Al-Sha’ab area, the activity concentrations of 238U, 232Th, 40K and 137Cs ranged from 9.21 to 24.51 Bq/kg, 6.41 to 16.81 Bq/kg, 246.32 to 402.78 Bq/kg and below minimum detectable activity to 4.8 Bq/kg, respectively. The RESRAD-Onsite code version 7.2 has been used to evaluate radiation dose and risk for the occupants of the areas of the study. The maximum total dose rates of 0.204 and 0.245 mSv/y were estimated for Al-Adhamiya and Al-Sha’ab areas, respectively. The total peak dose rates are about 5 times lower than the public radiation dose limit of 1 mSv/y. Based on the findings of the current study, it can be concluded that occupants in the investigated areas would not get any unacceptable radiological hazards due to radionuclides in soil.
Źródło:
World Scientific News; 2019, 122; 71-82
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ochrona i regeneracja błony śluzowej przełyku, gardła i krtani jako ważny element terapii pacjentów z przełykowymi i pozaprzełykowymi objawami choroby refluksowej
Autorzy:
Gąsiorowska, Anita
Powiązania:
https://bibliotekanauki.pl/articles/1397444.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
choroba refluksowa przełyku
kwas hialuronowy (HA) plus siarczan chondroityny (CS) i poloxamer 407
refluks krtaniowo-gardłowy
Opis:
Leczenie zespołów przełykowych i pozaprzełykowych choroby refluksowej przełyku (GERD) jest ukierunkowane przede wszystkim na hamowanie wydzielania kwasu solnego. Pomimo wysokiej skuteczności działania inhibitorów pompy protonowej (PPI) u około 30–60% pacjentów z GERD występują codzienne objawy choroby. Ważną rolę w generowaniu objawów GERD, poza refluksem kwaśnym, mają także inne czynniki, takie jak: nieprawidłowa perystaltyka przełyku, nadwrażliwość trzewna, zaburzone mechanizmy oczyszczania przełyku i zaburzona bariera śluzówkowa. Dodatkową propozycją terapeutyczną jest postępowanie, mające na celu poprawę mechanizmów obronnych błony śluzowej przełyku, a nie wpływ na hamowanie czynników uszkadzających. Preparat składający się z kwasu hialuronowego (HA), siarczanu chondroityny (CS) i poloxameru 407 chroni przed czynnikami uszkadzającymi (kwas solny, pepsyna) oraz przyspiesza proces gojenia i regeneracji błony śluzowej, stanowiąc ważny element monoterapii lub terapii dodanej u pacjentów z GERD.
Źródło:
Polish Journal of Otolaryngology; 2020, 74, 4; 40-45
0030-6657
2300-8423
Pojawia się w:
Polish Journal of Otolaryngology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kompetencje wizualne w kształceniu informatycznym
Visual competence in computer science education
Autorzy:
STOLIŃSKA, ANNA
ANDRZEJEWSKA, MAGDALENA
Powiązania:
https://bibliotekanauki.pl/articles/455583.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Rzeszowski
Tematy:
kompetencje wizualne
edukacja informatyczna
graficzne materiały dydaktyczne
okulografia
visual competence
CS education
graphic teaching materials
eye-tracking
Opis:
Umiejętności percepcji, interpretacji i tworzenia materiałów wizualnych, wszechobecnych w zdominowanej cyfrowo rzeczywistości, stały się w ostatnich czasach przedmiotem zainteresowania wielu badaczy. W artykule omówiono wybrane aspekty związane z edukacją informatyczną i kompetencjami wizualnymi.
Skills of perception, interpretation and production of visual materials, ubiquitous in digitallydominated reality, have become lately a point of interest of many researchers. The article discusses some aspects of visual competence which are related to computer science education
Źródło:
Edukacja-Technika-Informatyka; 2016, 7, 3; 157-162
2080-9069
Pojawia się w:
Edukacja-Technika-Informatyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Современная славистика и перспективы изучения русско-польской проблематики
Modern Slavistics and the perspectives of studying Russian-Polish problems
Autorzy:
Липатов, Александр
Powiązania:
https://bibliotekanauki.pl/articles/1955769.pdf
Data publikacji:
2019-12-31
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
интегральная славистика
общие закономерности
национальная специфика
интердисциплинарность
холизм.
integral slavistics
general patterns
national specifi cs
interdisciplinarity
holism.
Opis:
The internal differentiation of Slavic studies (history, linguistics, literary criticism, cultural studies) loses the perspective of system integrity. The development of the humanities led to the emergence of trends aimed at a complex comprehension of Slavdom in the light of the general patterns of European civilization and the characteristics of their local refraction. In the development of such a set of problems, thinking in the categories of holism, methods of interdisciplinarity and comparative studies are especially promising.
Внутренняя дифференциация славистики (история, языкознание, литературоведение, культурология) утрачивает перспективу системной целостности. Развитие гуманитарных наук обусловило появление направлений, нацеленных на комплексное постижение славянства в свете общих закономерностей европейской цивилизации и особенностей их локального преломления. В разработке такого комплекса проблем особенно перспективным представляется мышление в категориях холизма, методы интердисциплинарности и компаративистики.
Źródło:
Nowa Polityka Wschodnia; 2019, 4(23); 47-57
2084-3291
Pojawia się w:
Nowa Polityka Wschodnia
Dostawca treści:
Biblioteka Nauki
Artykuł

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