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Tytuł:
Związek Strzelecki „Strzelec” Józefa Piłsudskiego Jednostka Strzelecka 2059 Brzesko im. ppłk Andrzeja Hałacińskiego
Autorzy:
Duda, Marek
Powiązania:
https://bibliotekanauki.pl/articles/556915.pdf
Data publikacji:
2015
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Źródło:
Bezpieczeństwo. Teoria i Praktyka; 2015, 1; 141-144
1899-6264
2451-0718
Pojawia się w:
Bezpieczeństwo. Teoria i Praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wygładzanie wahań sezonowych
Smoothing of seasonal fluctuations
Autorzy:
Duda, Marek
Powiązania:
https://bibliotekanauki.pl/articles/541255.pdf
Data publikacji:
2012
Wydawca:
Wyższa Szkoła Bankowa we Wrocławiu
Tematy:
wahania sezonowe
trend
wygładzanie wahań sezonowych
Opis:
W artykule przedstawiono problem wahań sezonowych oraz sposoby jego rozwiązywania w praktyce gospodarczej. Wyróżniono trzy podstawowe metody eliminowania fali wahań okresowych: falę antagonistyczną, prostowanie fali oraz wygładzanie fali. Najczęściej stosowaną metodę – wygładzanie fali – zilustrowano przykładami z praktyki gospodarczej.
The article presents the problem of seasonal fluctuations and the ways of solving it in business practice. The author distinguishes three main methods of eliminating the “wave” of periodic fluctuations, which are called: wave antagonist, wave rectification, and smoothing the wave. The most commonly used method – smoothing the wave – is illustrated with examples from business practice.
Źródło:
Zeszyty Naukowe Wyższej Szkoły Bankowej we Wrocławiu; 2012, 28; 245-255
1643-7772
Pojawia się w:
Zeszyty Naukowe Wyższej Szkoły Bankowej we Wrocławiu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Z efektem Mössbauera na Marsie
With Mössbauer effect on Mars
Autorzy:
Bogusz, Patrycja
Maliszewski, Adam
Woźniak, Marek
Duda, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/1033147.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
MARMOS spectrometer
MER mission
MIMOS II spectrometer
Mars surface
Martian missions
Mössbauer spectroscopy
Viking mission
Opis:
People have been trying to send space vehicles to Mars since the early 1960s to explore the surface of this planet. One of the most important missions in discovering Mars was the Viking mission of 1975, which provided a lot of information shaping knowledge about the red planet at the turn of the century. The idea of sending Mössbauer spectrometer to Mars appeared due to the prevalence of iron in the planet's surfce and due to the specific properties of Mössbauer spectroscopy. Our paper describes the Warsaw project to send a Mössbauer spectrometer (MARMOS) to Mars and the project suggested by scientists from Mainz University (MIMOS II). A special Mössbauer spectrometer was constructed for the MER mission by West European Team. The paper presents the possibilities of using a miniaturized Mössbauer spectrometer for the investigation of archeological artefacts. The Mössbauer spectra obtained on the surface of Mars were discussed. The Mössbauer spectra obtained on the surface of Mars were discussed. The Mössbauer spectra measured on Mars are characterized by three doublets and one or two magnetic sextets. The spectra consist of a Fe3+ doublet (assigned to nanophase ferric oxide), two Fe2+ doublets (assigned to olivine and pyroxen) and two sextets (assigned to nonstoichiometric magnetite) or one sextet (assigned to a hematite-like phase).
Źródło:
Acta Societatis Metheoriticae Polonorum; 2020, 11; 7-30
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wstępne wyniki pomiarów mössbauerowskich próbki meteorytu Pułtusk otrzymanych w temperaturze pokojowej (300 K) oraz temperaturze ciekłego azotu (80 K)
Preliminary results of Mössbauer measurements of Pułtusk meteorite performed at room temperature (300 K) and at temperature of liquid nitrogen (80 K)
Autorzy:
Duda, Przemysław
Kazulo, Paweł
Setniewski, Adrian
Bogusz, Patrycja
Woźniak, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1033101.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
Mössbauer spectroscopy
Pultusk meteorite
Opis:
Mössbauer measurements of one sample of the Pułtusk meteorite were performed at room temperature (300 K) and at temperature of liquid nitrogen (80 K). Following mineralogical phases were identified in Mössbauer spectra: olivine, pyroxene, troilite, kamacite, taenite, and a doublet associated with ferric iron. The differences in the percentage of spectral areas obtained for all subspectra are very small. It means that in the range of these temperatures the Debye–Waller factor is the same for all mineralogical phases present in the investigated sample.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2018, 9; 48-53
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania mössbauerowskie chondrytów zwyczajnych typu H potwierdzają stopień ich zwietrzenia określony za pomocą skali W
Mössbauer measurements of ordinary chondrites type H confirm their level of weathering determined by scale W
Autorzy:
Jakubowska, Martyna
Rzepecka, Patrycja
Duda, Przemysław
Woźniak, Marek
Gałązka-Friedman, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/1033083.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
Carancas
Gao-Guenie meteorites
Juancheng
Mössbauer spectroscopy
weathering
Opis:
Mössbauer measurements of ordinary chondrites type H performed in room temperature are presented. Three investigated meteorites: Carancas, Juancheng and Gao-Guenie are new falls with different terrestrial history. Results of weathering in different conditions during terrestrial life are well seen in their Mössbauer spectra. The level of weathering determined by scale W is in perfect agreement with Mössbauer measurements of these three ordinary chondrites.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2017, 8; 63-72
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wstępne wyniki pomiarów mössbauerowskich meteorytu Pułtusk przeprowadzone w warunkach standardowych oraz z dużą rozdzielczością
Preliminary results of Mössbauer room temperature measurements of Pultusk meteorite performed in standard and high resolution
Autorzy:
Duda, Przemysław
Olrzyńska, Milena
Szewczak, Patrycja
Zielińska, Urszula
Bogusz, Patrycja
Woźniak, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1033100.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
Mössbauer spectroscopy
Pultusk meteorite
kamacite
non-ordered taenite
ordered taenite
Opis:
The results of two independent Mössbauer measurements of the same sample of the Pultusk meteorite are discussed. The measurements were performed at room temperature in standard conditions (256 channels) and with higher resolution (1024 channels). Very small differences in the percentage of the spectral areas of all mineralogical phases present in Mössbauer spectrum (olivine, pyroxene, metallic phases, troilite and ferric iron) convince that the measurement performed at standard conditions (256 channels) are sufficient for correct determination of the mineralogical composition of the investigated sample.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2018, 9; 42-47
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Próby klasyfikowania chondrytów zwyczajnych przez zastosowanie spektroskopii mössbauerowskiej
Attempts of classification of ordinary chondrites by application of Mössbauer spectroscopy
Autorzy:
Gałązka-Friedman, Jolanta
Woźniak, Marek
Duda, Przemysław
Jakubowska, Martyna
Bogusz, Patrycja
Karwowski, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/1032381.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
Mössbauer spectroscopy
classification of meteorites
ordinary chondrites
Opis:
Mössbauer spectra of equilibrated ordinary chondrites consist of two sextets due to magnetically ordered iron present in metallic phases and troilite and two doublets due to paramagnetic iron present in olivines and pyroxenes. The Mössbauer spectral areas of the different mineralogical phases in meteorites are proportional to the number of iron ions present in olivines, pyroxenes, metallic phase and troilite. This property of Mössbauer spectra was the basis for constructing various methods for the classification of ordinary chondrites. Review of these methods will be presented.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2019, 10; 23-28
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania mössbauerowskie siarczków żelaza w chondrytach zwyczajnych typu LL
Mössbauer studies of iron sulphides present in ordinary chondrites type LL
Autorzy:
Duda, Przemysław
Rzepecka, Patrycja
Jakubowska, Martyna
Woźniak, Marek
Karwowski, Łukasz
Gałązka-Friedman, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/1033078.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
Bjurböle
Mössbauer spectroscopy
NWA 8590
Oued el Hadjar
iron sulphides
meteorites
Opis:
Mössbauer measurements of three ordinary chondrites type LL were performed at room temperature. Values of spectral areas (SA) connected with troilite were different for investigated meteorites: for Oued el Hadjar – 4.8%, for Bjurböle – 10.6%, for NWA 8590 – 14.9%. Mössbauer spectra were fitted with the use of Recoil program. In all samples values of internal magnetic field and theta angle for subspectrum of troilite were the same: H = 31 T, theta=62°. In the sample of Bjurböle meteorite the signal from pyrrhotite was also noticed (SA = 1.7%, H = 25 T, theta = 33°). For meteorite NWA 8590 two subspectra of pyrrhotite were fitted with following parameters: for pyrrhotite I (SA = 1.1%, H = 27 T, theta= 41°), for pyrrhotite II (SA = 0.7%, H = 22 T, theta = 33°). It is easy to notice that the presence of pyrrhotite is correlated with higher amount of troilite in the samples of ordinary chondrites type LL.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2017, 8; 30-39
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mössbauerowskie badania meteorytu Kuźnica
Mössbauer studies of Kuźnica meteorite
Autorzy:
Jakubowska, Martyna
Woźniak, Marek
Bogusz, Patrycja
Karwowski, Łukasz
Gałazka-Friedman, Jolanta
Duda, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/1830270.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
4M method
Kuźnica
Mössbauer spectroscopy
Rumanová ordinary chondrites
meteorites
Opis:
Kuźnica meteorite was found in summer 2008 by an inhabitant of Częstochowa in the village of Kuźnica (Poland, voivodeship: Łódź, county: Pajęczano) in Poland. The finder, who is a passionate and collector of interesting stones, shared his find with the world only after a few years in the autumn of 2018. The found meteorite with a mass of 2.14 kg is an ordinary chondrite type H5. The degree of weathering on the surface is W2, inside W1. Currently, the meteorite is represented by 3 parts and two thin plates. The main mass is 2.037 kg, fragments are 13.7 g and 5.81 g. The found object was officially classified as a meteorite on 22th of November 2020. In this paper, we present the results of the Kuźnica meteorite measurements obtained by using the Mössbauer spectroscopy method. Mössbauer measurements of Kuźnica were performed at room temperature. The experimental spectrum was elaborated with “Recoil” program. Nine mineralogical phases were identified in the obtained Mössbauer spectrum: two doublets associated with olivine, two doublets associated with pyroxene, sextet associated with troilite, sextet associated with metallic phase identified as kamacite, doublet associated with iron hydroxides and two sextets associated with oxyhydroxides. The presence of a metallic phase or troilite in the test sample is convincing evidence of its extraterrestrial origin. These are mineralogical phases that can only arise in space conditions. Mössbauer spectroscopy allows for unambiguous identification of these mineralogical phases. In the standard 4M method, we use four basic phases to determine the type of ordinary chondrite: olivine, pyroxene, troilite and metallic phase, and we choose specimens in which the content of weathered phases does not exceed 7%. The Kuźnica meteorite is heavily weathered. The content of weathered phases is as much as 36.4%. Secondary minerals are a breakdown product of the metallic phase and to a lesser extent of the sulphide phase. Due to the strong weathering of the Kuźnica meteorite, we can modify the 4M method using only two basic phases: olivine and pyroxene. The analysis of the location of the Kuźnica meteorite on the figure of pyroxene vs. olivine dependence shows that it is ordinary chondrite type H. In this paper, the influence of the loss of the metallic and sulphide phases on the position of the Kuźnica meteorite on the figure of pyroxene/olivine vs. (pyroxene+metallic phase/(olivine+troilite)) was also checked. Weathering processes significantly transform many minerals. The resulting compounds often have parameters difficult to identify. However, difficulties in identifying secondary phases and their origins should not prevent an attempt to determine the type of meteorites using the 4M method.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2021, 12; 31-40
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metoda 4M – nowe zastosowanie spektroskopii mössbauerowskiej w klasyfikacji zrównoważonych chondrytów zwyczajnych
4M method – the new application of Mössbauer spectroscopy for classification of equilibrated ordinary chondrites
Autorzy:
Woźniak, Marek
Karwowski, Łukasz
Gałązka-Friedman, Jolanta
Duda, Przemysław
Jakubowska, Martyna
Bogusz, Patrycja
Powiązania:
https://bibliotekanauki.pl/articles/1033156.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
4M method
Cluster Analysis
Mahalanobis distance
Multidimensional Discriminant Analysis
Mössbauer spectroscopy
Principal Components Analysis
meteorites
meteorites classification
ordinary chondrites
Opis:
The 4M method aims to determine the type of equilibrated ordinary chondrite only on the basis of the Mössbauer spectrum of the investigated meteorite. Mössbauer spectrum of non-weathered ordinary chondrite is comprised of four sub-spectra: two doublets and two sextets. One of the doublets consists of a signal from iron present in olivine and the other consists of a signal from iron present in pyroxene. Sextets on the other hand, contain signals from magnetically ordered iron. One sextet is related to the metallic phase (kamacite, taenite), whereas the second is related to troilite. A third of doublets, which emerges in weathered ordinary chondrites, is related to products of the oxidation of iron present in metallic phase. The spectral areas of olivine, pyroxenes, metallic phase and troilite, which were obtained from Mössbauer spectrum are proportional to the number of iron atoms present in relevant mineral phases. Some Mössbauer groups were inspired by this fact to construct different methods to determine the type (H, L, or LL) of investigated meteorites (Gałązka-Friedman et al. 2019, Hyp. Inter. 241(1)). However, these methods, based on subjective criteria, were only qualitative. Our group elaborated a quantitative method, which is based on objective criteria. We called it the "4M method" (where M are derived from meteorites, Mössbauer spectroscopy, multidimensional discriminant analysis (MDA), Mahalanobis distance) (Woźniak et al. 2019). This method was using only the Mössbauer experimental data, to which it applied advanced statistical methods. The base, which was created from Mössbauer data, consisted of three clusters H, L, LL. These clusters were constructed with sets of 4-dimensional vectors. The vectors are comprised of spectral areas of Mössbauer spectrum: ol (value proportional to iron present in olivine), pyr (value proportional to iron present in pyroxene), met (value proportional to iron present in metallic phase), tr (value proportional to iron present in troilite). To determine the type of investigated ordinary chondrite, its ol, pyr, met and tr values with average values of variables obtained for clusters H, L and LL need to be compared. The comparison can be performed with the use of MDA and Mahalanobis distance. Once Mahalanobis distance of the investigated meteoriteis is known, the level of similarity to three types of ordinary chondrites can be calculated. Examples of such calculations were performed for seven ordinary chondrites: Goronyo, Carancas, New Concord, NWA 7733, Leoncin, Sołtmany and Pułtusk. They were made with the use of the new base composed of 62 non-weathered ordinary chondrites. All results obtained with the 4M method yielded results consistent with traditional mineralogical methods.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2020, 11; 125-140
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determining lower bound on number of vehicle blocks in multi-depot vehicle scheduling problem with mixed fleet covering electric buses
Autorzy:
Duda, Jerzy
Fierek, Szymon
Karkula, Marek
Kisielewski, Piotr
Puka, Radosław
Redmer, Adam
Skalna, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/27311780.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
public transport
organization of public transport
vehicle scheduling
electric buses
mixed fleet
transport publiczny
organizacja transportu publicznego
planowanie pojazdów
autobusy elektryczne
Opis:
Scheduling buses in public transport systems consists in assigning trips to vehicle blocks. To minimize the cost of fuel and environmental impact of public transport, the number of vehicle blocks used should be as small as possible, but sufficient to cover all trips in a timetable. However, when solving real life transportation problems, it is difficult to decide whether the number of vehicle blocks obtained from an algorithm is minimal, unless the actual minimal number is already known, which is rare, or the theoretical lower bound on the number of vehicles has been determined. The lower bound on the number of vehicle blocks is even more important and useful since it can be used both as a parameter that controls the optimization process and as the minimum expected value of the respective optimization criterion. Therefore, methods for determining the lower bound in transportation optimization problems have been studied for decades. However, the existing methods for determining the lower bound on the number of vehicle blocks are very limited and do not take multiple depots or heterogeneous fleet of vehicles into account. In this research, we propose a new practical and effective method to assess the lower bound on the number of vehicle blocks in the Multi-Depot Vehicle Scheduling Problem (MDVSP) with a mixed fleet covering electric vehicles (MDVSP-EV). The considered MDVSP-EV reflects a problem of public transport planning encountered in medium-sized cities. The experimental results obtained for a real public transport system show the great potential of the proposed method in determining the fairly strong lower bound on the number of vehicle blocks. The method can generate an estimated distribution of the number of blocks during the day, which may be helpful, for example, in planning duties and crew scheduling. An important advantage of the proposed method is its low calculation time, which is very important when solving real life transportation problems.
Źródło:
Archives of Transport; 2023, 65, 1; 27--38
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-objective optimization model for a multi-depot mixed fleet electric vehicle scheduling problem with real-world constraints
Autorzy:
Duda, Jerzy
Karkula, Marek
Puka, Radosław
Skalna, Iwona
Fierek, Szymon
Redmer, Adam
Kisielewski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2203871.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
public transport
electric bus
scheduling
MILP
transport publiczny
autobus elektryczny
planowanie
Opis:
This paper presents the problem of public transport planning in terms of the optimal use of the available fleet of vehicles and reductions in operational costs and environmental impact. The research takes into account the large fleet of vehicles of various types that are typically found in large cities, including the increasingly widely used electric buses, many depots, and numerous limitations of urban public transport. The mathematical multi-criteria mathematical model formulated in this work considers many important criteria, including technical, economic, and environmental criteria. The preliminary results of the Mixed Integer Linear Programming solver for the proposed model on both theoretical data and real data from urban public transport show the possibility of the practical application of this solver to the transport problems of medium-sized cities with up to two depots, a heterogeneous fleet of vehicles, and up to about 1500 daily timetable trips. Further research directions have been formulated with regard to larger transport systems and new dedicated heuristic algorithms.
Źródło:
Transport Problems; 2022, 17, 4; 137--149
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Odróżnianie próbek prawdziwych meteorytów od kamiennych próbek meteorytopodobnych – ważna rola spektroskopii mössbauerowskiej
Distinguishing between real and false meteorite samples – the important role of Mössbauer spectroscopy
Autorzy:
Bogusz, Patrycja
Gałązka-Friedman, Jolanta
Brzózka, Katarzyna
Jakubowska, Martyna
Woźniak, Marek
Karwowski, Łukasz
Duda, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/2034025.pdf
Data publikacji:
2022-03
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
ordinary chondrites
meteorites
Leoncin
Pu³tusk
Kheneg Ljouâd
Campos Sales
Julin
Mössbauer spectroscopy
4M method
Opis:
Four stony pieces were delivered to our laboratory for checking if they are fragments of meteorites: first sample (sample No. 1) was a fragment of a rock that fell near Leoncin in Poland, second sample (sample No. 2) was a fragment of a rock found also in Poland in the vicinity of Pultusk, third sample (sample No. 3) was a meteorite specimen bought on the meteorite exchange and fourth sample (sample No. 4) was a stone object whose decline was observed in Europe. We obtained mössbauer spectra of the delivered samples. The mössbauer spectrum of sample No. 1 is very similar to the spectrum of ordinary chondrite of type LL. Comparison of the mössbauer spectrum of sample No. 2 with mössbauer spectrum of Pu³tusk meteorite showed very large differences. In the spectrum of sample No. 3, a clear signal from iron-nickel alloy and troilite can be observed. These observations indicate that it is an object of extraterrestrial origin. Mössbauer spectrum of Sample No. 4 is similar to the spectrum of terrestrial magmatic rocks. Based on these spectrum we cannot clearly determine where the examined object comes from. This work demonstrates the usefulness of Mössbauer spectroscopy in recognizing samples that are fragments of meteorites.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2022, 13; 27-36
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania mössbauerowskie 3 chondrytów zwyczajnych typu L (Beni M’hira, Hyattville, Saratov) – wyznaczanie niepewności powierzchni spektralnych
Mössbauer studies of three ordinary chondrites type L (Beni M’hira, Hyattville, Saratov) – uncertainty of the determination of spectral areas
Autorzy:
Jakubowska, Martyna
Czarnecki, Arkadiusz
Robak, Marta
Zagrobelna, Anita
Bogusz, Patrycja
Woźniak, Marek
Gałązka-Friedman, Jolanta
Karwowski, Łukasz
Duda, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/1032382.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
Beni M’hira
Hyattville
Mössbauer spectroscopy
Saratov
percentage of the spectral areas
Opis:
Mössbauer 57Fe measurements of three ordinary chondrites type L were performed at room temperature. The measurements were repeated in the same experimental conditions. The experimental spectra were elaborated with „Recoil” program. The absorption areas of the same ordinary chondrite samples were very similar. The maximum variation was about 2% for doublets (paramagnetic iron) and 3% for sextet (magnetically ordered iron).
Źródło:
Acta Societatis Metheoriticae Polonorum; 2019, 10; 29-33
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 16

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