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Wyświetlanie 1-15 z 24
Tytuł:
GPS velocity field of the Balkan Peninsula
Autorzy:
Vassileva, K.
Becker, M.
Powiązania:
https://bibliotekanauki.pl/articles/225444.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
sieci GPS
geodynamika
Półwysep Bałkański
GPS networks
geodynamics
Balkan Peninsula
Źródło:
Reports on Geodesy; 2006, z. 5/80; 549-563
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Chemistry of Zirconia Nanopowders Doped with $Pr_2O_3$: an XPS Study
Autorzy:
Suchorski, Y.
Wrobel, R.
Becker, S.
Opalińska, A.
Narkiewicz, U.
Podsiadly, M.
Weiss, H.
Powiązania:
https://bibliotekanauki.pl/articles/1811498.pdf
Data publikacji:
2008-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
79.60.-i
61.46.-w
61.46.Hk
Opis:
Zirconia nanopowders of tetragonal crystallographic structure doped with $Pr_2O_3$ were prepared by the microwave-assisted hydrothermal synthesis and coprecipitation method. The surface compositions were studied by X-ray photoelectron spectroscopy. The nanopowder particles appear to be inhomogeneous in their structure: for the surface region an enrichment with praseodymium is detected by X-ray photoelectron spectroscopy measurements. This allows the assumption of a core-shell-like structure of single nanopowders particles. The X-ray photoelectron spectroscopy studies confirm also $Zr^{4+}$ and $Pr^{3+}$ as main oxidation states of zirconium and praseodymium in the studied compounds.
Źródło:
Acta Physica Polonica A; 2008, 114, S; S-125-S-134
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model koncepcyjny systemu hydrogeologicznego obszaru oddziaływania Lubińsko-Głogowskiego Obszaru Miedzionośnego (LGOM)
Conceptual model of hydrogeological system of Lubin-Głogów Ore District impact area
Autorzy:
Staśko, S.
Gurwin, J.
Wcisło, M.
Modelska, M.
Kryza, H.
Kryza, J.
Olichwer, T.
Buczyński, S.
Tarka, R.
Wąsik, M.
Becker, R.
Powiązania:
https://bibliotekanauki.pl/articles/2062565.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
modelowanie numeryczne
model hydrogeologiczny
model koncepcyjny
kopalnie głębinowe
drenaż kopalniany
numerical modelling
groundwater model
conceptual model
deep mine
mine drainage
Opis:
W Instytucie Nauk Geologicznych Uniwersytetu Wrocławskiego opracowano numeryczny model hydrogeologiczny 3D (regionalny), uwzględniający strefę oddziaływania górnictwa rud miedzi LGOM. Stworzony i przetestowany szczegółowy model hydrogeologiczny obejmuje swym zasięgiem powierzchnię 3049 km2, w tym obszary górnicze KGHM Polska Miedź (650 km2). Zbudowany model ma za zadanie przeprowadzenie weryfikacji struktury hydrogeologicznej, rozpoznanie i ustalenie danych ilościowych systemu krążenia wód podziemnych, określenie zmian warunków przepływu wód podziemnych w trakcie prowadzonej eksploatacji złoża a w konsekwencji ustalenie bilansów wód podziemnych modelowanych poziomów wodonośnych oraz ocenę ilościową dopływów kopalnianych na podstawie uzyskanego odwzorowania hydrodynamiki systemu. W efekcie końcowym uaktualniany model posłuży do wykonania symulacji prognostycznych w nawiązaniu do przewidywanego rozwoju obszarów wyrobisk górniczych. W artykule przedstawiono model koncepcyjny systemu hydrogeologicznego badanego obszaru. Stanowił on zakończenie wstępnych etapów prac oraz podstawę przy konstruowaniu modelu numerycznego.
3D numerical hydrogeological regional model has been developed in the Institute of Geological Sciences, University of Wrocław. The model takes into account the impact zone of copper ore mines Lubin-Głogów Ore District (LGOM). Detailed hydrogeological model has been created and tested covered area of 3049 km2 (in this the mining areas KGHM covered 650 km2). Built model is designed to verify hydrogeological structure, identification and determination of groundwater circulation system, to determine changes in groundwater flow during exploitation of the deposit. As a result developed model can determine groundwater balance and groundwater inflow to the mine based on the obtained image hydrodynamics of the system. In the end, updated model will be used to simulate the prognosis in relation to the anticipated development of mine workings.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2012, 451 Hydrogeologia z. 13; 203--210
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A software module for quqlity control of CEGRN sites
Autorzy:
Schoenemann, E.
Becker, M.
Gutwald, J.
Powiązania:
https://bibliotekanauki.pl/articles/224491.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
CERGOP
CEGRN
GPS
system pozycjonowania obiektów
stacje trwałe
Central European Regional Geodynamic Project
permanent stations
Opis:
GPS observations are still intluenced by a whole amount of effects, as for example multiple reflections, ionosphere etc. which have an impact on the accuracy of the observables even on carefully selected sites. Up to now these effects can not be mitigated or modelled satisfactorily. Hence the monitoring of these station specific effects is mandatory in order to judge about data quality and derive weighting or deletion schemes for optimal parameter estimation. Within the tasks of the work package 4 of the Central Europe Geodynamics Project (CERGOP), a software tool was developed to monitor the continuously operating reference stations of the network. The development was carried out using C++ libraries available for the most common operating systems. Here we describe the basic features of this package and give an overview of its present status.
Źródło:
Reports on Geodesy; 2006, z. 1/76; 103-109
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rozpoznanie stref perspektywicznych występowania niekonwencjonalnych złóż węglowodorów w Polsce : nowe wyniki oraz dalsze kierunki badań
Investigation of the prospective areas and stratigraphic horizons of the unconventional hydrocarbon resources in Poland : new results and future research directions
Autorzy:
Podhalańska, T.
Waksmundzka, M. I.
Becker, A.
Roszkowska-Remin, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075503.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
system węglowodorowy
niekonwencjonalne systemy węglowodorowe
przeszłość geologiczna
dolny paleozoik
Karbon
kraton wschodnioeuropejski
Południowo-Zachodnia Polska
hydrocarbon system
unconventional hydrocarbon systems
geological background
lower Palaeozoic
Carboniferous
East European Craton
South-Western Poland
Opis:
Studies that have recently been carried out by the Polish Geological Survey aim at, among others, deepening and supplementing the knowledge of unconventional hydrocarbon systems in Poland, including petroleum systems of the lower Palaeozoic in the Polish part of the East European Craton and of the Carboniferous in the South-Western Poland. The article presents the main principles and objectives of the research and the results of the project titled “Identification of prospective zones for unconventional hydrocarbon accumulations in Poland, stageI”,which is the only project that uses a wide range of recently conducted regional geology research and laboratory analyses, integrated with geological information derived from newly drilled boreholes. Geological constraints for the occurrence of unconventional hydrocarbon deposits in the Cambrian, Ordovician Silurian and Carboniferous rocks are presented. What is emphasized is the need to continue the work and to extend it to new research directions aimed at petroleum system modelling (e.g.burial history and analysis of hydrocarbon generation), and the need to refine and clarify some of the results obtained, supplementing them with an analysis of the latest data from newly drilled boreholes.
Źródło:
Przegląd Geologiczny; 2016, 64, 12; 953--962
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strefy perspektywiczne występowania niekonwencjonalnych złóż węglowodorów w kambryjskich, ordowickich, sylurskich i karbońskich kompleksach skalnych Polski : integracja wyników badań
Prospective zones for unconventional hydrocarbon resources in Cambrian, Ordovician, Silurian and Carboniferous rocks of Poland : integration of the research results
Autorzy:
Podhalańska, T.
Waksmundzka, M. I.
Becker, A.
Roszkowska-Remin, J.
Dyrka, I.
Feldman-Olszewska, A.
Głuszyński, A.
Grotek, I.
Janas, M.
Karcz, P.
Nowak, G.
Pacześna, J.
Roman, M.
Sikorska-Jaworowska, M.
Kuberska, M.
Kozłowska, A.
Sobień, K.
Powiązania:
https://bibliotekanauki.pl/articles/2075500.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
niekonwencjonalne złoża węglowodorów
strefa perspektywiczna
dolny paleozoik
karbon
basen bałtycko-podlasko-lubelski
zagłębie SW Poland
unconventional hydrocarbon resources
prospective zones
lower Palaeozoic
Carboniferous
Baltic-Podlasie-Lublin basin
Carboniferous basin of SW Poland
Opis:
The paper presents the characteristics of prospective zones identified for the first time within the lower Palaeozoic shale formations occurring in the Baltic-Podlasie-Lublin Basin and within the Carboniferous shale, sandstone, and mixed shale-sandstone complexes (the so-called hybrid complexes) in the basin of south-western Poland. The lateral and vertical ranges of these zones are determined based on specific criteria using the results of various research methods and analyses, i.e.: stratigraphic, sedimentological, mineralogical, petrological and geochemical of organic matter, petrographic and petrophysical, including interpretation of well logs. Archived geological materials and those coming from the boreholes drilled recently in the concession areas were also used. Four prospective zones have been distinguished in the lower Palaeozoic of the so-called shale belt: SP1, SP2, SP3 and SP4. The most prospective area for the occurrence of unconventional hydrocarbon deposits in shale formations is the Baltic region – the Łeba Elevation, where there are all four perspective zones, only partially covering the range of potentially prospective formations. In each of these zones, both liquid and gas hydrocarbons can be expected in this area. Due to the low percentage of organic matter, the lowest hydrocarbon generation potential is attributed to the Lublin region. However, the low values of this parameter are compensated by other parameters, i.e. the considerable thickness and lateral extent of zone SP4 corresponding partly to the Pelplin Formation. In the Carboniferous rocks of south-western Poland, seven prospective zones have been distinguished in four borehole sections. Four of them are “tight” zones in compact sandstones, while the other three zones represent a hybrid type in complexes with mixed lithology. No prospective zones have been defined in complexes with homogeneous shale lithologies. Determination of lateral extents of the identified zones has not been possible due to the scarcity of data on the geological structure and stratigraphy of the Carboniferous succession in the study area
Źródło:
Przegląd Geologiczny; 2016, 64, 12; 1008--1021
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of Bimetallic Systems with UPS and PAX: Gold on Platinum and Palladium Surfaces
Autorzy:
Moors, M.
Kobiela, T.
Krupski, A.
Becker, C.
Wandelt, K.
Powiązania:
https://bibliotekanauki.pl/articles/1811505.pdf
Data publikacji:
2008-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
79.60.Bm
73.61.At
71.20.Be
71.20.Eh
71.20.Gj
Opis:
In the present study the thermal behavior of ultrathin Au films deposited on different noble metal single crystal surfaces was studied by means of ultraviolet photoelectron spectroscopy and photoemission of adsorbed xenon. The primary goal of this work was to demonstrate the power of photoemission of adsorbed xenon as an easy to handle and very surface sensitive technique for the characterization of multi-component systems. All investigated systems, Au-Pt(111), Au-Pd(111) and Au-Pd(110) show a particular dependence of their electronic and structural properties on the annealing temperature. Au multilayer films with a thickness of 3 monolayer prepared at 150 K undergo in all cases a smoothening by annealing up to room temperature. While on Pd this effect is mainly detectable on the topmost atomic layer the ordering process on Pt is also affecting the deeper layers. Further annealing of the Au-Pd system to 450 K and the Au-Pt system to 750 K, respectively, results in the onset of the alloying process at the interface between metal film and substrate. After annealing to 650 and 950 K, respectively, the alloying finally extends to the very surface. The complete loss of Au from the surface can be detected at 1050 K on Pd and at 1150 K on Pt. The orientation of the substrate has only a weak influence, showing up e.g. in additional electronic states of the not alloyed Au-Pd(111) and Au-Pd(111) systems. Adsorption of CO as a probe molecule illustrates the formation of different adsorption sites on the bimetallic systems during the Au diffusion process.
Źródło:
Acta Physica Polonica A; 2008, 114, S; S-77-S-92
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CERGOP-2 Project activities of Bulgaria
Autorzy:
Milev, G.
Vassileva, K.
Becker, M.
Powiązania:
https://bibliotekanauki.pl/articles/224498.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
CERGOP
geodynamika
CEGRN
GPS
system pozycjonowania obiektów
geodynamics
velocity estimations
Opis:
This paper summarizes the recent works with respect to the CERGOP-2 project tasks. The main activity was the implementation of the Working Package "Geodynamics of Balkan Peninsula". Major efforts were taken to the maintenance of the operation of two permanent GPS stations in Bulgaria and to arrange for the data transmission to the CERGOP Data Centre in Graz. The CEGRN GPS campaigns of 2003 and 2005 were analyzed together with additional Balkan Peninsula stations. New results on coordinates and velocities for this Balkan Peninsula subnet of CEGRN are computed and will be presented and discussed. The accomplished works on the monograph "Geodynamics of Balkan Peninsula" with the preparation of the manuscripts and the main content of the findings will be outlined.
Źródło:
Reports on Geodesy; 2006, z. 1/76; 111-118
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geodetic measurements and investigations on the territory of Bulgaria within the CERGOP project
Autorzy:
Milev, G.
Vassileva, K.
Becker, M.
Dimitrov, N.
Powiązania:
https://bibliotekanauki.pl/articles/225781.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
geodynamika
CERGOP
Bułgaria
Półwysep Bałkański
geodynamics
Bulgaria
Balkan Peninsula
Źródło:
Reports on Geodesy; 2006, z. 5/80; 213-220
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of selected soil parameters on amino acid profile in Stellaria media
Autorzy:
M. Dziągwa-Becker, Magdalena
Kalitowska, Olga
A. Oleszek, Wiesław
Powiązania:
https://bibliotekanauki.pl/articles/2168198.pdf
Data publikacji:
2016-12-30
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
free amino acids
LC-MS/MS
soil organic matter
soil quality
common chickweed
Opis:
The study investigates the relationship between soilsthat vary for different basic physicochemical parameters (pH,phosphorus and potassium content, granulometric compositionand soil organic matter content) and the free amino acids content of Stellaria media. According to some research, plant aminoacid profile is a good indicator of the condition of the soils onwhich plants are grown. In this experiment, a rapid and sensitiveliquid chromatography coupled with tandem mass spectrometry(LC-MS/MS) method was used for the identification and quantification of nineteen proteinogenic amino acids in Stellaria mediasamples, which is a very common weed found worldwide. Significant linkage was found between the soil parameters and Stellariamedia amino acid content. Garden soil is the most favourable soilfor amino acid content. Glutamine, glutamic and aspartic acid arethe most abundant amino acids in Stellaria media grown on allthree tested soils.
Źródło:
Polish Journal of Agronomy; 2016, 27; 32-37
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of CEGRN 2005 as the eighth of CERGOP observing campaigns
Autorzy:
Hefty, J.
Gerhatova, L.
Stangl, G.
Haslinger, C.
Krauss, S.
Becker, M.
Drescher, R.
Grenerczy, G.
Kratochvil, R.
Liwosz, T.
Powiązania:
https://bibliotekanauki.pl/articles/224554.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
CERGOP
CEGRN
obserwacje geodezyjne
Central European Regional Geodynamic Project
geodetic observation
Opis:
Strategy of analysis and results from solution of CEGRN epoch campaign in 2005 Combined solution of CEGRN 2005 based or individual solutions from six an: centres and its comparison with CEGRN 2003 coordinates. Time evolution of coordinates at some long-term observed CEGRN sites obtained during epoch camp since 1994 and the related problems.
Źródło:
Reports on Geodesy; 2006, z. 1/76; 39-46
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Guidelines for the coordinated enhancement of the maritime position, navigation and time data system
Autorzy:
Engler, E.
Hoppe, M.
Ritterbusch, J.
Ehlers, T.
Becker, C.
Ehrke, K.-C.
Callsen-Bracker, H.
Powiązania:
https://bibliotekanauki.pl/articles/135132.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
standardized PNT data products
guidelines
requirements
scalability
integrity
reliability
resilience
Opis:
Reliable knowledge of a ship’s position and movement in relation to other traffic participants and obstacles is a fundamental requirement for navigation and avoiding collisions and groundings. Consequently, the onboard provision of resilient position, navigation and time data (PNT) is emphasized by the International Maritime Organization’s (IMO) e-navigation strategy, solution S3 “Improved reliability, resilience and integrity of bridge equipment and navigation information” and by the assigned risk control option RCO5 “Improved reliability and resilience of onboard PNT systems”. An initial step towards resilient PNT has been realized by the maritime community with the development of the performance standards for shipborne multi-system radionavigation receiver equipment (MRR). This MRR performance standard (PS) supports the full use of data coming from current and future radionavigation systems and services. Consequently, the combined use of several global navigation satellite systems (GNSS) and the additional use of space based augmentation systems (SBAS) as well as optional terrestrial radionavigation systems (e.g. eLoran or R-Mode) will be supported to increase the performance of positioning and timing. As a second step, the development of guidelines for an onboard PNT (data processing) unit has been identified as supplementary and necessary. The starting point is the onboard use of a combination of GNSS receivers and autarkic systems (e.g. radar, gyro, echosounders with bathymetric data) for a comprehensive provision of required PNT data. Redundancy in the available data enables the application of integrity monitoring functions to evaluate the current usability of safety-critical data and components. The aim of the guidelines is the specification of data processing rules towards the resilient provision of standardized PNT data and integrity information. For this purpose, a modular architecture for an onboard PNT system is introduced and scaled to the need for data input as well as the performance of data output.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 45 (117); 44-53
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a high-resolution real-time-capable 3D SONAR camera for deep sea operation
Autorzy:
Ehrhardt, M.
Becker, F. J.
Speicher, D.
Fonfara, H.
Hewener, H.
Degel, C.
Tretbar, S.
Powiązania:
https://bibliotekanauki.pl/articles/332135.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
2D array
matrix array
3D imaging
beamforming
Opis:
Within this work we present a first experimental setup of a high-resolution real-timecapable 3D sonar camera system for deep sea operation. Since we are currently in the development process, the focus of this work is on the transmission aspects of the camera. Following publications will include the receiving aspects as well as the first phantom reconstructions. The system consists of a 1024 element matrix array antenna, together with a 128 channel beamforming system including a 1:8 multiplexing device for each channel. The camera is supposed to deliver volumetric images within a range of up to 15 m in a deep sea environment up to 6000 m depth. The antenna provides the advantage of an adjustable defocused transmitting sound field. This allows dynamic control of the field of view, and an increase of the image contrast for a specific region.
Źródło:
Hydroacoustics; 2016, 19; 101-110
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary Central European intraplate velocities from CEGRN campaigns 1994 to 2005
Autorzy:
Drescher, R.
Becker, M.
Schoenemann, E.
Powiązania:
https://bibliotekanauki.pl/articles/224551.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
CERGOP
CEGRN
prędkości poziome
Central European Regional Geodynamic Project
velocity estimations
horizontal velocities
Opis:
Within the Central Europe Regional Geodynamics Project (CERGOP) for the establishment of a high precision reference frame CEGRN (Central European GPS Geodynamic Reference Network) eight GPS campaign solutions since 1994 are available for velocity estimation. They were used to compute preliminary station velocities in the ITRF2000. This paper reports not only on the results and some comparisons with former solutions published by the CERGOP group but also on the improved options available for velocity estimation with version 5.0 of Bernese GPS Software.
Źródło:
Reports on Geodesy; 2006, z. 1/76; 47-54
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 24

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