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    Wyświetlanie 1-12 z 12
    Tytuł:
    A method of magnetic field measurement in a scanning electron microscope using a microcantilever magnetometer
    Autorzy:
    Orłowska, Karolina
    Mognaschi, Maria E.
    Kwoka, Krzysztof
    Piasecki, Tomasz
    Kunicki, Piotr
    Sierakowski, Andrzej
    Majstrzyk, Wojciech
    Podgórni, Arkadiusz
    Pruchnik, Bartosz
    di Barba, Paolo
    Gotszalk, Teodor
    Powiązania:
    https://bibliotekanauki.pl/articles/220725.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    scanning electron microscope
    magnetometry
    microcantilever
    Opis:
    Scanning electron microscopy (SEM) is a perfect technique for micro-/nano-object imaging [1] and movement measurement [2, 3] both in high and environmental vacuum conditions and at various temperatures ranging from elevated to low temperatures. In our view, the magnetic field expanding from the pole-piece makes it possible to characterize the behaviour of electromagnetic micro- and nano-electromechanical systems (MEMS/NEMS) in which the deflection of the movable part is controlled by the electromagnetic force. What must be determined, however, is the magnetic field expanding from the e-beam column, which is a function of many factors, like working distance (WD), magnification and position of the device in relation to the e-beam column. There are only a few experimental methods for determination of the magnetic field in a scanning electron microscope. In this paper we present a method of the magnetic field determination under the scanning electron column by application of a silicon cantilever magnetometer. The micro-cantilever magnetometer is a silicon micro-fabricated MEMS electromagnetic device integrating a current loop of lithographically defined dimensions. Its stiffness can be calibrated with a precision of 5% by the method described by Majstrzyk et al. [4]. The deflection of the magnetometer cantilever is measured with a scanning electron microscope and thus, through knowing the bias current, it is possible to determine the magnetic field generated by the e-beam column in a defined position and at a defined magnification.
    Źródło:
    Metrology and Measurement Systems; 2020, 27, 1; 141-149
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of magnetometry for objects identification
    Zastosowanie magnetometrii do identyfikacji obiektów
    Autorzy:
    Zabenski, J.
    Scurek, R
    Powiązania:
    https://bibliotekanauki.pl/articles/103637.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza w Częstochowie. Wydawnictwo Uczelniane
    Tematy:
    magnetometry
    object identification
    magnetometria
    identyfikacja obiektów
    Opis:
    The paper concerns the possibility of application of magnetometry for object identification. One of the basic conditions for successful use of magnetometric methods is the magnetic contrast t of solids towards surroundings. Another possible use e of magnetometry is for local identification of solids in selected areas, which are situated in the local magnetic field. The magnetometer, which enables to measure up to three vector components of magnetic induction and specialized software were used in order to perform the research. Two experiments were carried out within the research.
    W pracy zaprezentowano analizy dotyczące możliwości zastosowania magnetometrii do identyfikacji obiektów. Jednym z podstawowych warunków efektywnego wykorzystania metod magnetometrycznych jest pomiar tła magnetycznego obiektów w odniesieniu do otoczenia. Kolejnym możliwym zastosowaniem magnetometrii jest identyfikacja obiektów w lokalnym polu magnetycznym w wybranym obszarze. W przeprowadzonych badaniach wykorzystano magnetometr umożliwiający pomiar trzech składowych wektora indukcji magnetycznej oraz wyspecjalizowane o oprogramowanie. W ramach pracy zrealizowano dwa eksperymenty naukowe.
    Źródło:
    Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Technika, Informatyka, Inżynieria Bezpieczeństwa; 2014, T. 2; 475-480
    2300-5343
    Pojawia się w:
    Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Technika, Informatyka, Inżynieria Bezpieczeństwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An application of the NSGA-II algorithm in Pareto joint inversion of 2D magnetic and gravity data
    Autorzy:
    Miernik, Katarzyna
    Węglińska, Elżbieta
    Danek, Tomasz
    Leśniak, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/1841758.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    NSGA-II
    Pareto joint inversion
    magnetometry
    gravimetry
    Opis:
    Joint inversion is a widely used geophysical method that allows model parameters to be obtained from the observed data. Pareto inversion results are a set of solutions that include the Pareto front, which consists of non-dominated solutions. All solutions from the Pareto front are considered the most feasible models from which a particular one can be chosen as the final solution. In this paper, it is shown that models represented by points on the Pareto front do not reflect the shape of the real model. In this contribution, a collective approach is proposed to interpret the geometry of models retrieved in inversion. Instead of choosing single solutions from the Pareto front, all obtained solutions were combined in one “heat map”, which is a plot representing the frequency of points belonging to all returned objects from the solution set. The conducted experiment showed that this approach limits the problem of equivalence and is a promising way of representing the geometry of the model that was retrieved in the inversion process.
    Źródło:
    Geology, Geophysics and Environment; 2021, 47, 2; 59-70
    2299-8004
    2353-0790
    Pojawia się w:
    Geology, Geophysics and Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recent Magnetometric Researches at Zoltan, Covasna County. Some Observations Regarding the Limits and Inner Structure of the Noua Settlement in the Place Called “Nisipărie”
    Autorzy:
    Popa, Alexandru
    Powiązania:
    https://bibliotekanauki.pl/articles/958146.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
    Tematy:
    Transylvania
    Bronze age
    Noua culture
    settlement
    magnetometry
    Opis:
    Previous field researches in the location called Zoltan-“Nisipărie” revealed a settlement with several different cultural layers, among which those of the Noua Culture seem to be dominant. Along the past years researchers have conducted both systematic archaeological diggings as well as geophysical researches. Through the scientific research presented in the following report we set out to highlight the limits and structure of the settlement with the help of magnetometry. The results we obtained allow us to outline the eastern limit of the intensely inhabited settlement. Judging by the magnetic anomalies we identified, we can speak about a large number of pits that stand at the basis of the archaeological structures found in the Noua settlement at Zoltan “Nisipărie”.
    Źródło:
    Analecta Archaeologica Ressoviensia; 2017, 12; 101-108
    2084-4409
    Pojawia się w:
    Analecta Archaeologica Ressoviensia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Castle Hill in Biecz and fortified stronghold in Kobylanka. The results of interdisciplinary research from 2019
    Autorzy:
    Kocańda, Paweł
    Pisz, Michał
    Rajchel, Bernadetta
    Filipowicz, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/2085857.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
    Tematy:
    castle
    medieval archaeology
    archaeological geophysics
    ground-penetrating radar
    magnetometry
    stronghold
    Opis:
    In 2019, new research was initiated at two archaeological sites located on the Ropa River, in Gorlice County, in the southeastern part of Małopolska Province. The first site was the Castle Hill in Biecz, and the second one was the fortified stronghold in Kobylanka. The research consisted of three stages. Firstly, extensive archival and library queries were conducted in order to gather basic information about both sites. Secondly, surface research was performed in order to collect any movable monuments. During the third stage, a reconnaissance by means of GPR, electrical resistivity imaging and geo-magnetic survey was carried out. These provided plenty of new valuable information on the spatial layout of both sites. In the case of the Castle Hill, the analysis of the discovered anomalies allowed for the interpretation of some of the finds as remnants of the brick elements of the castle, e.g. the tower, which corresponds with the plan from 1877. The results of the analyses of the anomalies from the fortified stronghold in Kobylanka, with its ramparts made of stone and earth as well as inner circular housing, were far more ambiguous. Its chronology may date back to the early Middle Ages
    Źródło:
    Analecta Archaeologica Ressoviensia; 2020, 15; 139-163
    2084-4409
    Pojawia się w:
    Analecta Archaeologica Ressoviensia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Results of geophysical scanning of a Roman senatorial villa in the Santa Marina Bay (Croatia, Istria) using the amplitude data comparison method (ADCM)
    Autorzy:
    Welc, Fabian
    Rousse, Corinne
    Bencic, Gaetano
    Powiązania:
    https://bibliotekanauki.pl/articles/2024852.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    archaeology
    geophysics
    ground-penetrating radar
    magnetometry
    Roman period
    Croatia
    Opis:
    The article presents application of the new geophysical amplitude data comparison method (ADCM), resulting from integrated geophysical survey using ground-penetrating radar (GPR) and magnetometry. The ADCM was applied to recognize the horizontal and vertical stratigraphy of a Roman senatorial villa located in Santa Marina (western part of Croatian Istria). The measurements were carried out in 2017−2019 at this site, accompanied by a use of GPR and gradientometer. These two methods significantly differ from each other, but on the other hand, they are complementary to some extent. This is due to the fact that the methods register different types of underground materials. The GPR records electromagnetic waves reflected from real buried remains or boundaries between geological or archaeological layers that differ significantly in electrical properties. The magnetic method, in turn, records the anomalies of the magnetic field intensity resulting from the underground concentration of ferromagnetic minerals, hence it is ideal for searching structures filled with organic matter or burning material. However, a separate usage of these methods does not guarantee a full picture of archaeological structures that are preserved underground. Only the application of the ADCM allowed for a comparison of GPR and magnetic amplitude data reading, following which a spatial image (2D and 3D) of the preserved archaeological structures and the geological stratigraphy of the Santa Maria site were obtained.
    Źródło:
    Studia Quaternaria; 2020, 37; 79-90
    1641-5558
    2300-0384
    Pojawia się w:
    Studia Quaternaria
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative analysis of soil magnetic susceptibility and concentration of rare earth elements in soil of problematic areas
    Autorzy:
    Zawadzki, Jarosław
    Fabijańczyk, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/2064859.pdf
    Data publikacji:
    2019
    Wydawca:
    STE GROUP
    Tematy:
    soil pollution
    rare earth elements
    magnetometry
    magnetic susceptibility
    industrial areas
    Opis:
    Soil contamination with rare earth metals (REE) can have both direct and indirect connection with industrial activity and ore-exploration. In the studies conducted so far, the presence of rare earth elements in coal seams, coal combustion waste as well as fly ash was found. It is important that detailed studies of the REE content in soil were not carried out in Poland. Until now, in a few studies, a high content of cerium and lanthanum was found in relation to the average content of the torn ones in the world. This work focuses on the areas under the influence of the industry associated with the extraction and combustion of hard coal, but also with other types of industry. Analyzes of REE content in soil were conducted in selected areas of the Upper Silesian Industrial Region and Norway, located near the Bjornevatn mine. In study areas, soil samples were collected and used for chemical and magnetometric measurements. Firstly, concentrations of REE were determined, and after that soil samples were used to measure soil magnetic susceptibility. Finally, statistical analyses were performed in order to check the correlation between REE concentrations in soil and soil magnetic susceptibility.
    Źródło:
    Multidisciplinary Aspects of Production Engineering; 2019, 2, 1; 81--90
    2545-2827
    Pojawia się w:
    Multidisciplinary Aspects of Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new magnetic anomaly map of Poland and its contribution to the recognition of crystalline basement rocks
    Autorzy:
    Petecki, Z.
    Rosowiecka, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060591.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    magnetometry
    Earth’s total magnetic field map
    pseudogravity
    crystalline basement
    Polska
    Opis:
    Magnetic total field measurements acquired in Poland between 1974 and 2011 have been compiled in a new digital database that provides a complete picture of magnetic anomalies of the country. The data compilation and further processing procedures used to create the magnetic anomaly database and maps that accompany this article are briefly summarized. The reduced-to-the-pole and pseudogravity anomaly maps were computed to accurately locate anomalies above their causative bodies as well as to simplify anomaly patterns and emphasize principal magnetic domains within the basement. An interpretation of the magnetic maps reveals a lot of magnetic basement provinces and domains indicating basement division into blocks and structural elements, which are important for understanding the regional tectonic setting of Poland.
    Źródło:
    Geological Quarterly; 2017, 61, 4; 934--945
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model strefy uskokowej Kraków–Lubliniec w świetle wyników analizy pól potencjalnych
    A model of the Kraków–Lubliniec Fault Zone in the light of potential field analysis results
    Autorzy:
    Rosowiecka, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2061879.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    grawimetria
    magnetometria
    gęstość
    porowatość
    podatność magnetyczna
    model gęstościowy
    gravimetry
    magnetometry
    density
    porosity
    magnetic susceptibility
    density model
    Opis:
    W celu uzupełnienia badań geologicznych przeprowadzonych na rdzeniach otworów wiertniczych Cianowice 2 i Trojanowice 2 o informację geofizyczną w rejonie badań wykonano analizę wyników powierzchniowych pomiarów geofizycznych pól potencjalnych. Usunięcie tła regionalnego z obrazu anomalii Bouguera poprzez odpowiednie transformacje pozwoliło uwypuklić lokalne struktury. Na grupie próbek reprezentatywnych dla poszczególnych jednostek litologicznych i stratygraficznych wykonano pomiary gęstości rzeczywistej i objętościowej oraz porowatości całkowitej, a także podatności magnetycznej i natężenia naturalnej pozostałości magnetycznej (IRNM). Parametry te zestawiono z wynikami wcześniejszych badań petrofizycznych w rejonie bloków małopolskiego i górnośląskiego. Informacje te wykorzystano w następnym etapie prac, jakim było przeprowadzenie dwuwymiarowego modelowania gęstościowego wzdłuż profilu łączącego otwory Cianowice 1 i 2 oraz Trojanowice 1 i 2. Na podstawie modelowania stwierdzono konieczność wprowadzenia drobnych zmian w strukturze geologicznej zaproponowanej przez Habryna (Habryn i in., 2007a, b) bez naruszania ogólnych założeń interpretacyjnych. Modelu magnetycznego nie wykonano ze względu na brak danych w południowej części profilu (obszar aglomeracji Krakowa).
    Analysis of the results of potential field surveys were carried out in order to supplement geological research focused on cores from the Cianowice 2 and Trojanowice 2 boreholes. Regional background of Bouguer anomaly was removed with the use of adequate transformations to underline local structures. Total and bulk density, total porosity and magnetic susceptibility as well as intensity of natural remnant magnetization (INRM) were measured on a representative set of samples taken from distinct lithological and stratigraphic units. Those parameters are related to previous results of petrophysical studies of the Malopolska and Upper Silesian blocks. The next stage of research was two-dimensional gravity modeling along the profile crossing four wells: Cianowice 1 and 2, and Trojanowice 1 and 2. The model suggests that some small changes in the interpretation of the geological structure (Habryn et al., 2007a, b) should be made, but the general interpretation guidelines remain stay the same. It has been impossible to develop a magnetic model since there is lack of data in the south part of the profile (Kraków agglomeration area).
    Źródło:
    Biuletyn Państwowego Instytutu Geologicznego; 2014, 459; 157--165
    0867-6143
    Pojawia się w:
    Biuletyn Państwowego Instytutu Geologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multidisciplinary insight into late Roman rural settlement on the northeastern Adriatic coast of Croatia: Island of Rab case study
    Autorzy:
    Welc, Fabian
    Konestra, Ana
    Dugonjić, Anita
    Androić Gračanin, Paula
    Rabiega, Kamil
    Nowacki, Bartosz
    Powiązania:
    https://bibliotekanauki.pl/articles/1635038.pdf
    Data publikacji:
    2019-12-31
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    Northeastern Adriatic
    Roman province Dalmatia
    Roman rural settlement
    pottery production
    archeological geophysics
    geoarcheology
    ground penetrating radar
    magnetometry
    Opis:
    Results of multidisciplinary research conducted on the island of Rab (Northeastern Adriatic, Croatia) are presented with particular focus on late Roman rural settlements and their economic activities. The settlement in Podšilo bay, Lopar peninsula, is analyzed in more detail, providing evidence on a vibrant local community engaged in diversified craft activities and the exploitation of local land and marine resources. Along with the specificities of its layout and organization, this site also presents unique possibilities to study environmental factors that influenced its setup and economy, but also its demise, tentatively placed within the 6th century AD.
    Źródło:
    Polish Archaeology in the Mediterranean; 2019, 28(2); 433-454
    1234-5415
    Pojawia się w:
    Polish Archaeology in the Mediterranean
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Testing and modeling of constant magnetic field cylindrical magnetoelectric sensors output characteristics
    Autorzy:
    Kuczynski, Karol
    Bilski, Piotr
    Bilski, Adrian
    Szymanski, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/2204515.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    magnetoelectric effect
    magnetostriction
    magnetometers
    amorphous magnetic materials
    piezoelectric materials
    efekt magnetoelektryczny
    magnetostrykcja
    magnetometry
    amorficzne materiały magnetyczne
    materiały piezoelektryczne
    Opis:
    The paper presents the novel concept of the magnetoelectric sensor constructed using the amorphous glass ribbon. Its output characteristics (voltage pattern), conditions of work and experimental results are presented. The novel construction allows for minimizing the demagnetizing field in the core of the sensor and linearization of the characteristics between the magnetic field and obtained voltage. Conducted experiments were aimed at determining the sensor operation in the presence of the constant magnetic field (HDC). The main concern of the tests was to verify the linear dependency between the HDC value and the amplitude of the output voltage. Next, the computer model representing the sensor behavior in the constant magnetic field is described. The model implements the parameter identification task based on the regression algorithms. The presented work shows that the proposed device can be used to measure the weak magnetic field and the dependency between the output signal amplitudes and the constant component in the measured magnetic field is approximately linear. This enables measurements of even weak fields.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 1; art. no. e144583
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An integrated geoarchaeological approach to late Iron Age settlement at Kaštelina hillfort (Lopar, Island of Rab, Croatia) using Amplitude Data Comparison (ADC) method and trial excavation
    Autorzy:
    Androić Gračanin, Paula
    Welc, Fabian
    Konestra, Ana
    Nowacki, Bartosz
    Powiązania:
    https://bibliotekanauki.pl/articles/1634067.pdf
    Data publikacji:
    2020-12-19
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    Northeast Adriatic
    hillfort settlement
    Late Iron Age building structures
    geophysical survey
    Amplitude Data Comparison (ADC) method
    archaeological excavation
    ground penetrating radar
    magnetometry
    multidisciplinary research
    Opis:
    Geophysical prospection and small-scale archaeological excavation were undertaken on the site of Kaštelina, a Late Iron Age hillfort settlement located on the Stolac promontory in the eastern part of Rab island (Kvarner Gulf, Croatia). Within the frame of the “Archaeological topography of the island of Rab” program, a Polish–Croatian team applied a series of multidisciplinary methods to study the occupational history of the site, its preservation, the nature of selected site features and future research potential. Ground-penetrating radar and magnetometer surveys, combined with the implementation of the Amplitude Data Comparison (ADC) method, led to the detection of remains of Late Iron Age building structures distributed over the northwestern side of the Stolac promontory. Archaeological excavations verifying the findings of the geophysical survey resulted in the discovery of a dwelling with associated outdoor features. A preliminary assessment of the outcome of a multidisciplinary approach to the study of the site of Kaštelina emphasizes the importance of the collected data for a general understanding of Late Iron Age settlements and their internal organisation in a wider context.
    Źródło:
    Polish Archaeology in the Mediterranean; 2020, 29(2); 447-467
    1234-5415
    Pojawia się w:
    Polish Archaeology in the Mediterranean
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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