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    Wyświetlanie 1-21 z 21
    Tytuł:
    Effects of geomagnetic field deprivation on germination and early growth of maize variety San (Zea mays L. cv. San)
    Autorzy:
    Tombarkiewicz, Barbara
    Możdżeń, Katarzyna
    Kanik, Weronika
    Bojarski, Bartosz
    Pawlak, Krzysztof
    Lis, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/2148497.pdf
    Data publikacji:
    2019-03-30
    Wydawca:
    Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
    Tematy:
    geomagnetic field deprivation
    germination
    maize seedlings
    Opis:
    The geomagnetic field (GMF) represents one of the major environmental factors which may suffer either natural or anthropogenic disturbances. According to available literature data, many plants species responds to GMF changes and its ab-normalities can adversely affect live organisms. The aim of the study was to investigate the influence of GMF deprivation on se-lected morphological and physiological parameters of maize vari-ety San (Zea mays L. cv. San). The examined parameters included germination capacity, seedling growth, fresh and dry weight, the water content and the level of disorganization of seedling cell membranes.The obtained results suggest that GMF deprivation caused a reduction of germination capacity of maize. Moreover, roots of seedlings growing under disturbed GMF conditions (GMF inten-sity approx. 12 μT) were significantly longer as compared to the control group (GMF intensity approx. 38–42 μT). Fresh weight, dry weight, and coleoptiles length showed no differences among the groups. However, significantly lower electrolyte leakage was observed in maize seedlings of the experimental group.
    Źródło:
    Polish Journal of Agronomy; 2019, 36; 3-7
    2081-2787
    Pojawia się w:
    Polish Journal of Agronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An analysis of variation of geomagnetic field parameters upon applying the theory of covariance functions
    Autorzy:
    Skeivalas, Jonas
    Obuchovski, Romuald
    Powiązania:
    https://bibliotekanauki.pl/articles/221411.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    geomagnetic field parameters
    covariance function
    quantization interval
    Opis:
    In the paper, the variation of the intensity of the geomagnetic field force is analysed in time and space. For the research, the data from measurements of the intensity of the geomagnetic field force at four airports (Kaunas, Klaipéda, Palanga and Vilnius) and 6 geomagnetic field repeat stations as well as the data from Belsk Magnetometric Observatory (Poland) were used. For the data analysis, the theory of covariance functions was applied. The estimates of the cross-covariance functions of the measured intensity of the geomagnetic field force or the estimates of auto-covariance functions of single data were calculated according to the random functions created from the force intensity measurement data arrays. The estimates of covariance functions were calculated upon varying the quantization interval on the time scale and applying the software created using Matlab package of procedures. The impact of radars of airports on the intensity of geomagnetic field variation and on changes of their covariance functions was established.
    Źródło:
    Metrology and Measurement Systems; 2019, 26, 2; 363-376
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Solar Radio Burst Type III due to M 2.9 Class Flare with a Geomagnetic Disturbance
    Autorzy:
    Hamidi, Z. S.
    Ali, M. O.
    Shariff, N. N. M.
    Monstein, C.
    Zainol, N. H.
    Hussien, Nurul Hazwani
    Ramli, Nabilah
    Farid, M. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1190207.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    solar radio burst
    solar storm
    flare
    geomagnetic disturbance
    Opis:
    Varying forms of solar radio burst were classified by their frequent changes in time, which are known as drift rate. There are 5 types of radio emission were named type I, II, III, IV and V. This paper is highlighted on the type III event which occurred on 27th August 2015. In the IP medium, type III solar radio burst can be classified in three different groups which representing three different situations of electron beam production and propagation which are isolated, complex and storm type III burst. The most powerful manifestation of solar activity is solar flare together with coronal mass ejections, eruptive prominences and the solar wind are the solar events which affect the earth's atmosphere and can cause geomagnetic disturbance. In this study, the effect of M class flare with solar radio burst type III was investigated. During the day, the solar wind proton density seems to be high which is 8.4 protons/cm3 and accompanied by normal solar wind speed of 348.7 km/Sec. Spaceweather.com reported that there is one sunspot was detected (AR2403) and M class of the flare was detected during the day at 0544 UT. The data geomagnetic signal shows that during the day only geomagnetic disturbance that occur no such geomagnetic storm since the sunspot not facing the earth directly.
    Źródło:
    World Scientific News; 2016, 44; 155-167
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The MMM Expert System: From a Reference Signal to The Method Validation
    Autorzy:
    Witoś, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/97927.pdf
    Data publikacji:
    2012
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
    Tematy:
    geomagnetic field
    magneto-mechanical effects
    numerical model
    SHM
    Opis:
    This paper presents the first step in the methodological approach to the validation of the metal magnetic memory (MMM) method in the non-destructive testing (NDT) applications and in the systems used for diagnosis of early stages of material fatigue in mechanical constructions (structural health monitoring, SHM, and prognosis health management, PHM). The study is focused on the properties of the external natural source of magnetisation of the object under MMM examination and the impact of the magnetisation components. The precise data obtained from measurements of the Earth's geomagnetism (from ground stations and satellites) and the revised model of the Earth's magnetism can be applied in order to calibrate high sensitivity magnetic field sensors, validate the measurement results and extend the functional capacity of the MMM method.
    Źródło:
    Fatigue of Aircraft Structures; 2012, 4; 123-140
    2081-7738
    2300-7591
    Pojawia się w:
    Fatigue of Aircraft Structures
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geomagnetic detection method for pipeline defects based on ceemdan and WEP-TEO
    Autorzy:
    Zhang, Tao
    Wang, Xinhua
    Chen, Yingchun
    Shuai, Yi
    Ullah, Zia
    Ju, Haiyang
    Zhao, Yizhen
    Powiązania:
    https://bibliotekanauki.pl/articles/220762.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    geomagnetic detection
    pipeline defects
    magnetic field
    filtering
    data processing
    Opis:
    This paper presents a geomagnetic detection method for pipeline defects using complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) and wavelet energy product (WEP) - Teager energy operator (TEO), which improves detection accuracy and defect identification ability as encountering strong inference noise. The measured signal is first subtly decomposed via CEEMDAN into a series of intrinsic mode functions (IMFs), which are then distinguished by the Hurst exponent to reconstruct the filtered signal. Subsequently, the scale signals are obtained by using gradient calculation and discrete wavelet transform and are then fused by using WEP. Finally, TEO is implemented to enhance defect signal amplitude, completing geomagnetic detection of pipeline defects. The simulation results created by magnetic dipole in a noisy environment, indoor experiment results and field testing results certify that the proposed method outperforms ensemble empirical mode decomposition (EEMD)-gradient, EEMD-WEP-TEO, CEEMDAN-gradient in terms of detection deviation, peak side-lobe ratio (PSLR) and integrated side-lobe ratio (ISLR).
    Źródło:
    Metrology and Measurement Systems; 2019, 26, 2; 345-361
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bronzezeitliches Siedlungswesen im Vorfeld der polnischen Westkarpaten: Geomagnetische Untersuchungen und Geländebegehungen im Bereich des Dunajectals
    The specificity of the Bronze Age settlement in the foreland of Polish Western Carpathians. Surface surveys and geomagnetic prospection in the valley of the Dunajec River
    Autorzy:
    Kienlin, Tobias L.
    Valde-Nowak, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/442426.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Jagielloński. Instytut Archeologii
    Tematy:
    Polish Western Carpathians
    Bronze Age
    surface surveys
    geomagnetic prospection
    Opis:
    In 2006, the verification surface surveys and geomagnetic prospection were carried out on Neolithic and Bronze Age sites in Wiśnicz and Rożnów Foothills. These sites were discovered in the course of AZP action in the early 90s the last century. The research were undertaken in order to obtain further information on the source potential and character of the settlement. For geomagnetic prospection 15 sites were selected. As a result of the research it was possible to significantly increase the amount of the Early and Older Bronze Age, which are fairly rare in the Carpathians. Particular attention was paid to extensive field scatterings of pottery dated at later periods of the Bronze Age and probably also at the Iron Age. In several sites, as can be judged on the results of geomagnetic prospections, there are numerous features embedded in the ground. In that case, a systematic excavation should be carried out. Of these sites a big highland settlement in Janowice seems to be the most spectacular.
    Źródło:
    Recherches Archéologiques Nouvelle Serie; 2009, 1; 49-71
    0137-3285
    Pojawia się w:
    Recherches Archéologiques Nouvelle Serie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect on Major Solar Flares on AR 10720 associated with Halo Coronal Mass Ejections (CMEs)
    Autorzy:
    Roslan, Akram Zaki
    Aziz, A. H. Abdul
    Powiązania:
    https://bibliotekanauki.pl/articles/1162507.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    CMEs
    Coronal Mass Ejections
    Geomagnetic storms
    Solar flares
    The Sun
    Opis:
    This research will focus on the major solar flares (X-Class) from active region AR 10720. All the data were retrieved and analysed from authority agencies which are SOHO and NOAA. From X-ray data, AR 10720 was producing 5 major solar flares namely X1.2, X2.6, X3.8, X1.3 and X7.1 from 106 of total solar flares. From data analysis, all major solar flares were associated with full halo coronal mass ejection (CME) except for solar flare X1.2. If major solar flare happened early, it will potentially to happened again in the same AR in the range 1-3 days. The speed of halo-CME was producing more than 1,000 kms-1. The Dst index shows all major solar flares affected the earth magnetic field and lead to geomagnetic storms in the ranges 1-3 days after the flares events. From proton speed data shows there is no obvious pattern towards major solar flares. From of all these data, prediction of major solar flares can be made in futures research.
    Źródło:
    World Scientific News; 2018, 111; 87-99
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ghazali 2012: preliminary report
    Autorzy:
    Obłuski, Artur
    Ochała, Grzegorz
    Bogacki, Miron
    Małkowski, Wiesław
    Maślak, Szymon
    ed-Din Mahmoud, Zaki
    Powiązania:
    https://bibliotekanauki.pl/articles/1727981.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    Ghazali
    monasticism
    Nubia
    Christianity
    remote sensing
    geomagnetic survey
    epigraphy
    architecture
    Opis:
    The medieval monastery at Ghazali in Sudan was excavated in part by the Sudan Antiquities Service in 1953 and 1954, and is one of the best preserved archaeological sites in the country. A new project of the Polish Centre of Mediterranean Archaeology, University of Warsaw, and the National Corporation of Antiquities and Museums of Sudan revisited the ruins with a site presentation project coupled with excavation geared to bringing out a final publication of the remains, which are of utmost importance for studies of medieval Nubian history. Site surveying (including geophysics) and mapping occupied most of the short season in 2012, but some unexpected discoveries were also made.
    Źródło:
    Polish Archaeology in the Mediterranean; 2015, 24(1); 431-442
    1234-5415
    Pojawia się w:
    Polish Archaeology in the Mediterranean
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetic Repeat Station Network on the Baltic Sea - Why So Needed?
    Autorzy:
    Welker, E.
    Reda, J.
    Pałka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/320619.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Forum Nawigacyjne
    Tematy:
    Earth's magnetic field
    marine magnetic repeat stations
    secular geomagnetic field changes
    Opis:
    The development of navigation systems requires more and more accurate base data. Currently, attention is paid to utilization of geophysical fields - gravitational and magnetic ones - for navigation purposes. The Earth’s magnetic field distribution - both onshore and offshore - is complicated and variable in time. Hence, it is essential to precisely know the secular variations in the area of interest. In the case of Baltic Sea, this involves establishing (re-establishing) of a marine network of secular points (repeat stations) and regular magnetic measurements of the three independent components of the Earth’s magnetic field. Such measurements require equipment that ensures not only high stability, but also information about sensors’ orientation in relation to geographic north and to the level. This article presents a new project of the Baltic network of repeat stations and gives a solution for the instruments usable for quasi-absolute magnetic measurements.
    Rozwój systemów nawigacyjnych wymaga posiadania coraz dokładniejszych danych. Dotyczy to również znajomości naturalnych pól fizycznych Ziemi, które są postrzegane jako niezwykle użyteczne dla nawigacji, zwłaszcza grawitacyjne oraz magnetyczne. Rozkład pola magnetycznego Ziemi jest bardzo zróżnicowany przestrzennie, a ponadto jest zmienny w czasie - tak na lądzie jak i we wszechoceanie. Stąd tak istotna jest dokładna znajomość jego rozkładu, a także zmian wiekowych. W przypadku Morza Bałtyckiego wymagałoby to ustanowienia (wznowienia) sieci punktów wiekowych na morzu i regularnych pomiarów trzech składowych pola magnetycznego Ziemi w tychże punktach. Tego rodzaju pomiary wymagają odpowiedniego sprzętu, gwarantującego wysoką stabilność czujników, ale również wymagają sensorów zapewniających dokładną orientację urządzenia pomiarowego względem kierunku geograficznego oraz pionu. W artykule przedstawiono projekt Bałtyckiej Sieci Punktów Referencyjnych oraz propozycje rozwiązań technologicznych do budowy urządzeń zapewniających quasi-absolutne pomiary pola magnetycznego na dnie morza.
    Źródło:
    Annual of Navigation; 2017, 24; 19-30
    1640-8632
    Pojawia się w:
    Annual of Navigation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Conversion Energy from the Movement of the Solar System Through Universal Pressure: Reflections in Seismic Events and Global Temperatures
    Autorzy:
    Persinger, M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/411550.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    solar system
    seismicity
    geomagnetic activity
    Global Warming
    night glow
    electron mass equivalence
    Opis:
    The velocity (~242 km•s-1) of the Solar System around the galactic center within the universal pressure (~10-10 Pascal) produces energies within the earth’s volume that is equivalent to that released by the sum of all earthquakes per unit time. The available energy within the earth and solar volume from the expected spatial variations of this pressure along this perimeter, which requires about 250 million years to traverse, can accommodate the increased geomagnetic activity from the expanding solar corona over the last approximately 100 years as well as the increase in global warming. Inferences of a varying structure of space that may explain the periodicity and range in solar cycles as well as anomalous minimums (such as the Maunder phenomenon) suggest a central galactic singularity with spatial ripples exhibiting peak-to-peak troughs that approximate the earth’s circumference and frequencies in the order of 7 to 8 Hz. The precise velocity-universal pressure flux density may also explain the millilux-range magnitude of the earth’s night (air) glow. These results and the application of these concepts indicate that origins of seismicity, slow drifts in the intensity of geomagnetic activity, and global warming (and cooling) trends are products of differential interactions with quantitative fluctuations in sub-matter space and that the subtle variations encountered as the Solar System moves along this 1021 m perimeter may be more significant than previously assumed.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 17, 1; 78-86
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Defect recognition of buried pipeline based on approximate entropy and variational mode decomposition
    Autorzy:
    Ju, Haiyang
    Wang, Xinhua
    Zhang, Tao
    Zhao, Yizhen
    Ullah, Zia
    Powiązania:
    https://bibliotekanauki.pl/articles/221572.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Buried Pipeline
    Defect Recognition
    Geomagnetic Anomaly Detection
    Variational Mode Decomposition
    Approximate Entropy
    Opis:
    The study aimed to examine the use of Geomagnetic Anomaly Detection (GAD) to locate the buried ferromagnetic pipeline defects without exposing them. However, the accuracy of GAD is limited by the background noise. In the present work, we propose an approximate entropy noise suppression (AENS) method based on Variational Mode Decomposition (VMD) for detection of pipeline defects. The proposed method is capable of reconstructing the magnetic field signals and extracting weak anomaly signals that are submerged in the background noise, which was employed to construct an effective detector of anomalous signals. The internal parameters of VMD were optimized by the Scale–Space algorithm, and their anti-noise performance was compared. The results show that the proposed method can remove the background noise in high-noise background geomagnetic field environments. Experiments were carried out in our laboratory and evaluation results of inspection data were analysed; the feasibility of GAD is validated when used in the application to detection of buried pipeline defects.
    Źródło:
    Metrology and Measurement Systems; 2019, 26, 4; 739-755
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Solar Radio Burst Type II Correlated With Minor CME Contributes to The Production of Geomagnetic Disturbance
    Autorzy:
    Husien, Nurulhazwani
    Hamidi, Z. S.
    Ali, M. O.
    Zainol, N. H.
    Sabri, S. N. U.
    Shariff, N. N. M.
    Faid, M. S.
    Ramli, Nabilah
    Monstein, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/1192691.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Solar radio burst
    solar radio burst type II
    Coronal Mass Ejections
    geomagnetic disturbance
    Opis:
    The solar radio burst type II on 4th November 2015 was associated with minor CME that not lead towards the Earth. This clear type II burst recorded on spectrographs detected by the antenna in several locations (Gauri, Almaty, Kasi and Ooty) were obtained from CALLISTO website. The average time of the burst occurred are around 03:24 UT until 03:28 UT with the clear minor CME emerged recorded by SOHO at 03:12 UT. Although it just a minor CME but it is still giving the effect on Earth as it contributes to geomagnetic disturbance on the Earth during that day. The affected region reported by The Local news is Sweden, where the radar system for aviation was not clear, but it is back to normal after a few hours later. This geomagnetic disturbance is powerful enough that may cause the satellite damage, endanger astronauts and produce destructive surges on power grids.
    Źródło:
    World Scientific News; 2016, 46; 165-175
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simple Binary Prediction of Daily Storm-Level Geomagnetic Activity with Solar Winds and Potential Relevance for Cerebral Function
    Autorzy:
    Caswell, J. M.
    Rouleau, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/412488.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Geomagnetic field
    solar winds
    interplanetary magnetic field
    prediction
    logistic regression
    artificial neural network
    space Feather
    Opis:
    A number of previous studies have examined various statistical methods for the prediction of geomagnetic activity, particularly based on predictor input of solar wind variables. However, investigation of the potential for a simple binary prediction system based on either “quiet” or storm-level activity of the planetary magnetic field has been severely lacking. The goals of the current analyses were to identify potential space weather models for the accurate prediction of geomagnetic storm events. Furthermore, while the deleterious or negative effects of increases in geomagnetic activity on a range of terrestrial systems have been focused on in the past, theoretical perspectives on the potential benefits of significantly increased geomagnetic perturbations are considered.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 17, 1; 107-113
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Middle, Late Neolithic and Early Bronze Age Cemetery in Skołoszów, site 7, Dist. Jarosław, in the Light of the Results of Non-invasive Archaeological Survey in 2016
    Autorzy:
    Cwaliński, Mateusz
    Niebieszczański, Jakub
    Król, Dariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/498053.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
    Tematy:
    Funnel Beaker culture
    Corded Ware culture
    Mierzanowice culture
    tumuli
    long barrows
    geomagnetic
    non-invasive survey
    Opis:
    In the autumn of 2016 a geomagnetic survey was conducted in Skołoszów, site. 7, Dist Jarosław. The magnetic prospection took place on a low hill spanning 2.12 ha in total. Distribution of the anomalies, as visible on a map depicting obtained data, reflects numerous structures related to human activity in the area during the prehistory and historic times. Among them are two features interpreted as residues of funerary rituals taking place at the site. One of them pertains to Middle Neolithic earthen long barrow, whereas the second by its shape resembles Late Neolithic/Early Bronze Age tumuli. Apart from the latter, one can discern numerous anomalies potentially related to pits and ditches. Interpretation of the geophysical imagery was based upon the results of excavations conducted in 2010 in the nearby section of Skołoszów, site 7. In the process, funeral structures in the types of earthen long barrow and a presumable tumulus were recorded. Thus, it is possible to confront observations inferred from the results of non-invasive, magnetometric survey, with data obtained by means of more direct exploratory methods. Besides the prehistoric record, our investigation resulted in reconstruction of the trenches most probably dating to the First World War.
    Źródło:
    Analecta Archaeologica Ressoviensia; 2017, 12; 39-48
    2084-4409
    Pojawia się w:
    Analecta Archaeologica Ressoviensia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza względnych zmian wiekowych pola magnetycznego Ziemi (1966-2005) wzdłuż profilu Zgorzelec-Wiżajny
    Analysis of the relative secular variations of the geomagnetic field along Zgorzelec-Wiżajny profile
    Autorzy:
    Bojdys, G.
    Grabowska, T.
    Marchewka, J.
    Suchoń, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/184004.pdf
    Data publikacji:
    2006
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    względne zmiany wiekowe
    pole magnetyczne Ziemi
    metodyka badań
    PLZ
    EEC
    TESZ
    relative secular variations
    geomagnetic field
    methods of investigation
    Opis:
    Artykuł przedstawia wyniki badań nad lokalnymi względnymi zmianami w czasie całkowitego pola magnetycznego Ziemi, obserwowanymi wzdłuż profilu o długości około 700 km, który przecina platformę paleozoiczną (PLZ), strefę szwu transeuropejskiego (TESZ) i wschodnioeuropejski kraton (EEC). Badania te są kontynuacją wcześniejszych tego typu prac przeprowadzonych w latach 1966-2000. Pomiary pola magnetycznego Ziemi wykonane w ostatnim 5-leciu wyraźnie ujawniły nowe zjawisko, jakim jest przyspieszenie wzrostu pola magnetycznego w obszarze wschodnioeuropejskiego kratonu. Potwierdziły one również zwiększoną dynamikę zmian pola magnetycznego w tym obszarze w odróżnieniu od strefy szwu transeuropejskiego i platformy paleozoicznej. Zaobserwowany w ostatnim 5-leciu charakter zmian pola magnetycznego skłonił do modyfikacji dotychczas stosowanej metodyki badań względnych zmian wiekowych.
    The paper presents results of the studies on local relative time variations of total geomagnetic field observed along the 700 km long profile crossing the Paleozoic Platform (PLZ), Transeuropean Suture Zone (TESZ) and East European Craton (EEC). The study is a continuation of the research conducted in the years 1966-2000. Measurements of the Earth's magnetic field made in the last five years revealed a new phenomenon, which was a faster increase of the magnetic field observed at the EEC. They proved also that the dynamics of the magnetic field variations observed for the EEC was greater than it was for TESZ and PLZ. The character of geomagnetic field variations observed during the last five years caused the modification of method of studies of relative secular geomagnetic variations.
    Źródło:
    Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2006, 32, 4; 375-388
    0138-0974
    Pojawia się w:
    Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relative secular variations of the Earth’s magnetic field in the years1966–2016 along the profile across the main tectonic units of Poland (Zgorzelec-Wiżajny profile)
    Autorzy:
    Wojas, Anna
    Grabowska, Teresa
    Powiązania:
    https://bibliotekanauki.pl/articles/184271.pdf
    Data publikacji:
    2019
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    relative local secular variations
    geomagnetic field
    total magnetic intensity
    Palaeozoic Platform
    Trans-European Suture Zone
    East European Craton
    Polska
    Opis:
    The paper summarizes 50 years of research on relative local secular variations of the total magnetic intensity (TMI) along Zgorzelec-Wiżajny profile (Z-W profile) through the years 1966–2016. The Z-W profile (approximately 650 km length) cuts through Europe’s major tectonic units, including a zone of Variscan folds in the Paleozoic platform (PP), the Trans-European Suture Zone (TESZ) and the Polish part of the East European Craton (EEC). Measurements of TMI were made at 31 sites of the profile and reduced to the base recordings at the Central Geophysical Observatory in Belsk. Based on linear approximations of relative geomagnetic field values changes in time, relative annual changes in time (relative secular variations) expressed in nanoteslas [nT] per year were calculated. The study on relative geomagnetic field values revealed slower secular variations of the geomagnetic field in EEC as compared to those in PP and TESZ. However, they show lower amplitudes of these variations. An interesting phenomenon are rapid changes in the time of the relative values (trends) of TMI starting from the year 2000, also expressed as the relative secular variations per year, particularly visible in PP area. In the qualitative sense, relative secular variations show a correlation with the main geological units in the Polish territory and also important elements in the seismic and geothermal model of the lithosphere.
    Źródło:
    Geology, Geophysics and Environment; 2019, 45, 3; 183-194
    2299-8004
    2353-0790
    Pojawia się w:
    Geology, Geophysics and Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Third Option for Stopping Cancer: Complex, Temporally Patterned Weak Magnetic Fields- Critical Factors That Influence Their Efficacy and Potential Mechanisms
    Autorzy:
    Murugan, Nirosha J.
    Rouleau, Nicolas
    Persinger, Michael A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1191252.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    new treatments for malignancy
    geomagnetic vector differences
    interactions with patterned magnetic fields
    cancer inhibition
    copper blocking
    Aharanov-Bohm applications
    Dicke quantum optics application
    Opis:
    One of the most promising technologies for suppressing the growth of malignant (cancer) cells without adversely affecting normal cells involves the application of physiologically-patterned and bioquantum compatible magnetic fields with specific temporal increments generated by optocoupler circuits through each of the three spatial planes. However, experimentally generated magnetic field patterns designed to target cancer cells are also immersed within the magnetic environment of the incubators. We measured anomalous alterations in the horizontal (primarily “east-west”) component of the geomagnetic static field intensity within cell incubators when the most effective experimental field was being generated between three sets of solenoids. The eccentric response was a function of the six solenoids being wrapped or not wrapped with copper foil. In addition, activating or deactivating the experimental field for fixed increments was associated with discrete and obvious DC shifts in the horizontal component as well as emergent patterns that were not a component of either the experimental field or the background incubator 60 Hz source. If the temporal pattern that defines the effects induced by these magnetic fields is analogous to the spatial patterns that define chemical functions, failure to accommodate these anisotropic transients could be a source of the frequent contradictions and inter-laboratory failures to replicate these phenomena. We suggest that the emergent phenomena from these interactions with quantum-like features may be the causal variables responsible for many of the promising effects for cancer suppression. A modified Dicke model derived from quantum optics where cells cooperatively interact with a single mode of the field and their dipole fields interact coherently may accommodate the observed effects.
    Źródło:
    World Scientific News; 2016, 54; 267-288
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wyniki badań nad lokalnymi zmianami pola magnetycznego Ziemi na lubelskim skłonie wschodnioeuropejskiego kratonu (profil Parczew - Chełm)
    Study on the relative local temporal changes of the geomagnetic field on the Lublin slope of the East European Craton (the Parczew - Chełm profile)
    Autorzy:
    Bojdys, G.
    Grabowska, T.
    Wójcik, A.
    Medoń, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/183763.pdf
    Data publikacji:
    2010
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    lokalne względne zmiany pola magnetycznego
    lubelski skłon wschodnioeuropejskiego kratonu
    magnetometr protonowy
    pole IGRF
    2D modelowanie magnetyczne
    geomagnetic field
    temporal changes
    proton magnetometer
    magnetic modeling
    EEC
    Opis:
    Na tle budowy geologicznej lubelsko-podlaskiego skłonu kratonu wschodnioeuropejskiego (LPSK) przedstawiono rezultaty badań nad lokalnymi względnymi zmianami w czasie całkowitego pola magnetycznego Ziemi. Obiektem badań były wyniki pomiarów ziemskiego pola magnetycznego, wykonywanych w ciągu ostatnich 12 lat (1997-2008) w 20 punktach pomiarowych, zlokalizowanych wzdłuż profilu Parczew - Chełm. Na podstawie wartości ziemskiego pola magnetycznego wyznaczono względne zmiany czasowe tego pola. Zmiany te przedstawiono w formie wykresu oraz 2D i 3D odwzorowań, uwidoczniających ich związek z obrazem obserwowanych anomalii magnetycznych. Metodą 2D modelowania magnetycznego dokonano próby wyjaśnienia przyczyny lokalnych, względnych zmian pola magnetycznego, wiążąc to zjawisko ze zmianami wektora namagnesowania skał podłoża krystalicznego zachodzącymi pod wpływem zmieniającego się w czasie pola magnetycznego Ziemi.
    The local relative changes of the total intensity geomagnetic field in time are presented against the background of the geological structure of Lublin-Podlasie slope (LPSK) of the East European Craton. The research concerned measurement results of the total intensity (T) of the geomagnetic field, taken in the last 12 years (1997-2008) at 20 sites located along the Parczew - Chełm profile. Relative temporal changes of the geomagnetic field were determined on the basis of values of geomagnetic field calculated with reference to geomagnetic field measured at the base. These changes are presented as graphs, and in the form of space-time 2D and 3D representations, showing their relationship with the magnetic anomaly map. The cause of local relative changes was attempted to be explained by 2D magnetic modeling assuming that the changes of the induced magnetization of the basement crystalline rocks are result of the geomagnetic secular variations.
    Źródło:
    Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2010, 36, 2; 155-171
    0138-0974
    Pojawia się w:
    Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reconstruction of geomagnetic event as observed in Northern Adriatic region and Its correlation with GPS single-frequency positioning deviations
    Autorzy:
    Brčić, D.
    Ćelić, J.
    Valčić, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/116009.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Global Navigation Satellite System (GNSS)
    geomagnetic event
    Northern Adriatic
    Global Positioning System (GPS)
    positioning deviations
    positioning
    Navigation and Timing (PNT)
    Total Electron Content (TEC)
    Classification and Regression Trees (CART)
    Opis:
    Space weather effects are generally recognized as causes of degradation of satellite positioning, navigation and timing (PNT) services. We analyze GPS position estimation error during a geomagnetic storm, focusing on manifestations of geomagnetic processes. The position estimation error was analyzed in terms of GPS coordinates’ deviations (latitude, longitude and height) from their reference values. The storm’s impact was studied in the Northern Adriatic region where GPS observables from two Global Navigation Satellite System (GNSS) reference stations were analysed. Geomagnetic indices were elaborated, comprising readings from interplanetary, magnetospheric and geomagnetic observatories. Total Electron Content (TEC) on both stations was computed using dual frequency GPS pseudorange observables. The experiment was to reconstruct the movement of geomagnetic disturbances entering the geospace, reaching the earth’s surface. The aim was to correlate possible space weather manifestation on satellite positioning performance in terms of positioning error. Regularities in changes in positioning deviations were identified with relation to influential indices. The research offered a possibility of experimental positioning deviations assessment as well as forecasting. Evaluation of generated rudimentary Classification and Regression Trees (CART) models showed that the risk of satellite positioning errors could be assessed and predicted considering absolutes, as well as changes in values of geomagnetic indices. During the research process, several activities emerged as preferable continuation of the work, with the aim of further development of predictive models and the complement of space weather scenarios and their consequences on navigational systems. Along with summarized results, they are outlined in the conclusion section.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 349-357
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hidden Connections Between NanoTesla Magnetic Fields, Cosic Molecular Resonance, and Photonic Fields Within Living Systems
    Autorzy:
    Persinger, Michael A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1188077.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Cosic RRM; photon flux; nanoTesla magnetic fields; 10-20 Joules; Hu-Wu dipole-dipole effects; Bokkon photonic fields; ultraweak biophoton emissions
    excess correlation
    geomagnetic activity
    spectral power densities
    Opis:
    The interfaces between molecules and the interactions between cells involve very small energies (~10-20 J) and photon flux densities (~10-12 W•m-2) that ultimately control the dynamics and health of the human body. Within the environment there is an increment (± 3 nT) of weak magnetic field fluctuations whose energies within the volume of the human brain display the capacities to affect its properties through nuclear spins in neural membranes. There is a conservation of energy. Within the same volume when there are increases in photon flux densities from cells and human cerebrums there are decreases of interfacial geomagnetic field intensities within the nanoTesla range. The spectral power densities of the sequential quantifications of pseudopotentials of the amino acids that compose proteins and the nucleotides that construct DNA and RNA predict the functions of molecular pathways as electromagnetic resonances. They operate through these small energies, photon flux densities, and fluctuating magnetic fields. Whereas metabolic-level energies operate the mechanics of the multivariate molecular pathways for cell signaling the photon wavelengths predicted by the Cosic Resonant Recognition Model may be the templates and the initiators. The involvement of specific peaks of photon wavelengths that are the energetic equivalents of molecular structures containing intrinsic phase-modulations creates the conditions for excess correlations (“entanglement”) and potential non-locality within the total human environment. This alternative perspective may facilitate developments of different strategies and technologies for solving the challenges of global public health in the 21st century.
    Źródło:
    World Scientific News; 2016, 56; 1-20
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polish magnetic measurements in the Baltic — history and prospects
    Polskie pomiary magnetyczne na Bałtyku — historia i perspektywy
    Autorzy:
    Welker, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/222663.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
    Tematy:
    Earth's magnetic field
    magnetic measurements at sea
    secular variations of a geomagnetic field
    repeat stations
    isopods
    pole magnetyczne Ziemi
    pomiary magnetyczne na morzu
    zmiany wiekowe pola geomagnetycznego
    punkty wiekowe
    izopody
    Opis:
    The progress in observation technology and navigation systems, as well as improvements in appliances used for carrying out magnetic measurements require a knowledge of the Earth’s magnetic field distribution, not only on land but also in water regions. In order to update the results of marine magnetic measurements the knowledge of specific variations in a water region is required. It is connected with establishing a network of repeat stations taking regular measurements of three independent components of the Earth’s magnetic field. Charts contained in the Atlas of the Baltic Magnetic Charts in which the discovered anomalies in a geomagnetic field are marked can be useful in designing such a network.
    Rozwój technik obserwacyjnych i systemów nawigacyjnych oraz ulepszenie aparatury do pomiarów magnetycznych wymagają znajomości rozkładu pola magnetycznego Ziemi nie tylko na lądzie, ale i na akwenach. Do bieżących aktualizacji wyników morskich pomiarów magnetycznych potrzebna jest wiedza na temat zmian rocznych (wiekowych) na danym akwenie. Wiąże się to z założeniem morskiej sieci punktów wiekowych (repeat stations) i regularnymi na niej pomiarami trzech niezależnych składowych pola magnetycznego Ziemi. W zaprojektowaniu takiej sieci mogą być pomocne mapy z Atlasu map magnetycznych Bałtyku, na których uwidocznione są wykryte anomalie pola geomagnetycznego.
    Źródło:
    Zeszyty Naukowe Akademii Marynarki Wojennej; 2015, R. 56 nr 2 (201), 2 (201); 75-85
    0860-889X
    Pojawia się w:
    Zeszyty Naukowe Akademii Marynarki Wojennej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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