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Wyszukujesz frazę "Szewczyk, J." wg kryterium: Wszystkie pola

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Wyświetlanie 1-15 z 76
Tytuł:
The deep-seated lowland relict permafrost from the Suwałki region (NE Poland) : analysis of conditions of its development and preservation
Autorzy:
Szewczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/2060585.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
relict permafrost
palaeoclimate
Weichselian Glaciation
terrestrial heat flow
cryogenic groundwater
Suwałki Anorthosite Massif
Opis:
The Udryń PIG 1 research borehole drilled in northeastern Poland (54°14’49”N, 23°03’29”E, 223 m a.s.l.) revealed a permafrost layer, at least 93 m thick, within the sedimentary succession below a depth of 357 m. The base of the permafrost has not been reached at 450 m depth, where the drilling stopped, so its total present thickness remains unknown. The relict permafrost, unexpected in this part of Central Europe, is in the ice-water transition phase at a temperature slightly below the 0°C. Analysis of geophysical and hydrogeological data indicates the possibility of preserving the permafrost in the central part of sedimentary cover of the Suwałki Anorthosite Massif over an area of probably 50 km2. Preliminary results of geothermal modelling indicate maximum palaeothickness of permafrost at the end of the Last Glacial Maximum of probably ~600 m. The development of such a thick permafrost results both from a very low average annual temperature in the Weichselian Glaciation and a very low terrestrial heat flow density. It is very probable that similar zones of deep relict permafrost occurrences, undetected so far, may exist in other areas of the Precambrian Platform not only in Poland, but also in the neighbouring countries.
Źródło:
Geological Quarterly; 2017, 61, 4; 845--858
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Terrestrial heat flow density in Poland - a new approach
Autorzy:
Szewczyk, J.
Gientka, D.
Powiązania:
https://bibliotekanauki.pl/articles/2059118.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
alaeoclimate
Weichselian glaciation
well logging
geothermics
thermal conductivity
terrestrial heat flow density
Opis:
The Earth’s thermal field, particularly the heat flow density (HFD), is a valuable source of information on geodynamic processes within the Earth’s crust, conditions for hydrocarbon generation and on ar eas and formations promising for geothermal energy. Lithospheric thermal and rheological modelling is critically dependent on high-quality surface heat flow values. The available maps of heat flow density, not only for the area of Poland, are not reliable from the point of view of the current state of knowledge. The main critical factorin determining heat flow density is the knowledge of depth distribution of thermal conductivity. We used a new method of estimating the thermal conductivity from well logging data interpretation with control calibration based on laboratory determined thermal parameters. We con sider that the observed vertical variations of HFD in the shallow part of profiles (<2000 m) are mainly due to a Holocene warming. We have proposed a new original method of determination of HFD based on modelling of palaeoclimatic ef fect. Using this method, we have calculated new HFD values for 308 deep boreholes and completed a new map of this parameter for Poland, which is the first of this type. We propose to undertake a critical analysis of all the existing heat flow data not only for Europe that may change the present understanding of global heat flow.
Źródło:
Geological Quarterly; 2009, 53, 1; 125-140
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development dynamics of the transport network in Małopolskie Voivodeship in the period 2002-2014
Dynamika rozwoju sieci transportowej województwa małopolskiego w latach 2002-2014
Autorzy:
Szewczyk, J.
Wieser, K.
Powiązania:
https://bibliotekanauki.pl/articles/38151.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Acta Scientiarum Polonorum. Oeconomia; 2018, 17, 2
1644-0757
Pojawia się w:
Acta Scientiarum Polonorum. Oeconomia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acer platanoides L. 'Beskid' - a new Norway maple cultivar
Acer platanoides L. 'Beskid' - nowa odmiana klonu pospoliteggo
Autorzy:
Marosz, A.
Szewczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/888569.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Dendrologiczne
Tematy:
Acer platanoides
Norway maple
plant cultivar
new cultivar
tree
ornamental plant
new form
plant breeding
dendrology
Beskid cultivar
Opis:
A new cultivar of maple with very peculiar leaves is described and illustrated. A plant originated spontaneously among the seedlings of Acer platanoides used as rootstocks in an ornamental nursery, Krzywaczka. Probably this type of growth and shape of leaves resulted from gene mutation.
Źródło:
Rocznik Polskiego Towarzystwa Dendrologicznego; 2009, 57
2080-4164
2300-8326
Pojawia się w:
Rocznik Polskiego Towarzystwa Dendrologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of the Inundation of the Potassium Open Pit in Kalush on the Environment - Predictions and Facts
Wpływ zatopienia kopalni soli potasowej w Kałuszu na środowisko - prognozy i fakty
Autorzy:
Gajdin, A. M.
Maciaszek, J.
Szewczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/385799.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
kopalnia soli w Kałuszu (Ukraina)
solanka
deformacje
open pit in Kalush (Ukraine)
brine water
deformation
Opis:
W artykule przedstawiono badania czynników wpływających na kształtowanie się składu chemicznego wody po zatopieniu odkrywki w ukraińskim mieście Kałusz (obwód iwanofrankiwski). Stwierdzono, że zniszczenia skarp odkrywki, jej brzegów oraz dna jeziora powodują izolację warstw solnych od wody; eliminuje to destrukcyjny wpływ mineralizacji wody wskutek rozpuszczania soli na stateczność brzegów jeziora.
Factors generated chemical composition of water during the influence of the potassium open pit near the city of Kalush, Ivano-Frankiv region were investigated. It was stated that the destruction of the open pit edges, the beach and the bottom of the lake are isolated from salt deposition. The elimination of water mineralization takes place.
Źródło:
Geomatics and Environmental Engineering; 2014, 8, 4; 15-24
1898-1135
Pojawia się w:
Geomatics and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enlargement and Legitimacy of the European Union
Autorzy:
Szewczyk, Bart M.J.
Powiązania:
https://bibliotekanauki.pl/articles/706646.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Nauk Prawnych PAN
Tematy:
EU
MAASTRICHT TREATY
QMV
Opis:
This article is part of a larger project on contemporary sources of legitimacy of the European Union. My prior inquiry into this subject argued that the primary legitimacy problem within the EU is not the so-called 'democratic deficit' or the EU's failure to produce certain outputs, but is instead the EU's ability to enact laws against a national government's will and dissent through Qualified-Majority Voting ('QMV') in the Council of Ministers. Based on an analysis of the EU's internal transformation through four successive treaties, that article argued that the EU can be legitimated based on two primary sources, national democracy and European citizenship, such that QMV decision-making could be justified based on promotion or protection of European citizenship, even against a national democracy's will. From this internal transformation of the EU, this article turns to the EU's external transformation through enlargement across Central and Eastern Europe. By examining the process of enlargement, the article argues that this practice also reflects the hypothesized dual legitimacy structure based on European citizenship and national democracy. In particular, the EU's primary focus during the enlargement process on the Copenhagen political criteria (rather than the economic or acquis criteria) - and in particular, ensuring the candidate countries' commitment to EU fundamental rights - was justified in light of the concurrent shift in EU decision-making from de facto unanimity to QMV. Since an EU democracy could now be outvoted in the Council and an EU decision could be taken against a nation's democratic will, the old EU Member States wanted to ensure that the new Member States would share their core political values, such that all Member States would be expected to pursue the same basic shared interests and could thus credibly claim to act on behalf of European citizens. Even as a pre-condition of accession negotiations, the EU required candidate countries to meet stringent political criteria reflecting the EU's new orientation around fundamental rights and excluded those countries that failed to do so, particularly based on human rights grounds; in contrast, it extended membership to countries even if they did not fully meet the economic or acquis criteria. In conclusion, the article proposes to formalize this consensus through a 'Strasbourg Compromise,' mirroring the Luxembourg Compromise that underpinned the European Communities, but orienting it around European citizenship rather than the national veto.
Źródło:
Polish Yearbook of International Law; 2010, 30; 131-168
0554-498X
Pojawia się w:
Polish Yearbook of International Law
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determining the shape and volume of the post-mining basin in Kadzielnia area, Kielce
Wyznaczenie kształtu i objętości niecki poeksploatacyjnej na terenie Kadzielni w Kielcach
Autorzy:
Klimczyk, P.
Krawczyk, K.
Ptak, J.
Sawadro, K.
Siarek, A.
Stępień, A.
Szewczyk, J.
Walkiewicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/402278.pdf
Data publikacji:
2016
Wydawca:
Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Tematy:
determining volume with geodesic methods
bathymetry
scanning tacheometry
określanie objętości metodami geodezyjnymi
batymetria
tachimetria skanująca
Opis:
Long-term exploitation of limestone in Kadzielnia in the centre of Kielce created the post-mining basin of considerable size. For some time it was filled with water, forming the lake Szmaragdowe (Emerald Lake), which dried out 30 years ago. Because of the restoration projects of the lake it became necessary to determine its volume; the data on the size of the basin have not so far been presented in publications. This volume was determined using modern measurement technologies: in the part filled with water – bathymetric measurement, in the dry part – scanning tacheometry. As a result of measurements and calculations, volumes of the part filled with water (23.000 m3) and of the dry part (277.000 m3) were determined. The spatial model of the basin and topographic maps were also created.
Źródło:
Structure and Environment; 2016, 8, 2; 131-139
2081-1500
Pojawia się w:
Structure and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of the condition of the selected underground caves in Kadzielnia area, Kielce
Badania stanu wybranych jaskiń podziemnych na terenie Kadzielni w Kielcach
Autorzy:
Kowalczyk, L.
Krawczyk, K.
Makuch, A.
Mosiołek, J.
Piśkiewicz, B.
Pluta, M.
Proboszcz, A.
Szewczyk, J.
Świdzicka, K.
Wirecka, A.
Powiązania:
https://bibliotekanauki.pl/articles/1519677.pdf
Data publikacji:
2016
Wydawca:
Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Tematy:
inventory survey of the caves
scanning tacheometry
inwentaryzacja pomiarów jaskiń
tachimetria skanująca
Opis:
The area of Kadzielnia in Kielce is one of the best known cave areas in the region. Part of the caves (the group Jaskinia Odkrywców – Prochownia – Szczelina) has been made available to tourists. This requires proper protection of a tourist route; in the caves there is a possibility of threats in the form of rock falls, cracks, depressions, etc. Therefore, the state of the caves requires monitoring, including surveying methods. For this reason, an inventory of four selected parts of said group of caves was conducted with the use of modern surveying techniques. The measurement was performed with the use of scanning tacheometry, complemented with digital images of the monitored fragments. The results are presented in the form of spatial models (in AutoCAD Civil 3D and Surfer) and compiled with the taken pictures. Presented results are initiating a broader study on the state of the Kadzielnia caves.
Źródło:
Structure and Environment; 2016, 8, 3; 197-205
2081-1500
Pojawia się w:
Structure and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of the condition of the selected landslides in the area of Kadzielnia
Badania stanu wybranych osuwisk na terenie Kadzielni
Autorzy:
Duma, P.
Gajos, K.
Gil, M.
Godzisz, B.
Kaleta, D.
Krawczyk, K.
Salamon, M.
Siwiec, K.
Szewczyk, J.
Woś, J.
Powiązania:
https://bibliotekanauki.pl/articles/402519.pdf
Data publikacji:
2016
Wydawca:
Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Tematy:
landslide movements
laser scanning
determination of displacements
ruchy osuwiskowe
skanowanie laserowe
wyznaczanie przemieszczeń
Opis:
The Kadzielnia nature reserve located in Kielce is a remnant of the long-term exploitation of limestone. The slopes of a former quarry are unstable; landslide processes occur there, posing a threat to humans and disturbing the landscape. This condition requires observation of the changes in order to take preventive measures. The article presents the preliminary results of such observations, performed for four selected landslides in Kadzielnia. While measuring, modern geodetic techniques were applied, including satellite technology, scanning tacheometry and laser scanning. Obtained results indicate slight displacements of the monitored walls over several months. Observations which were made are initiating study on the behavior of the landslides in the area of Kadzielnia, aimed at early detection of threats and enabling taking safety procedures.
Źródło:
Structure and Environment; 2016, 8, 1; 64-73
2081-1500
Pojawia się w:
Structure and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Populations of Armillaria species in pine plantations in west-central Poland
Autorzy:
Szewczyk, W.
Kwasna, H.
Behnke-Borowczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/41760.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Opis:
Two diploid isolates of Armillaria gallica and 143 diploid isolates of A. solidipes were obtained from 145 samples of rhizomorphs, fruit bodies and infected wood of sessile oak and Scots pines from 5–10-year-old Scots pine plantations in three Forest Districts located 100–350 km apart in west-central Poland. Based on pairings among the 145 isolates, 18 somatic compatibility groups (genets) of A. solidipes were distinguished in the three plantations. Sequencing of ITS1/2 rDNA of 18 isolates representing the 18 genets delineated four nuclear haplotypes. This suggests that many of the A. solidipes genets are closely related and were possibly established by sib-related basidiospores. With a few exceptions there was general geographical specialization of genets but not haplotypes. Geographical specialization of genets and the dominance of single haplotypes suggest that the A. solidipes population results from clonal rather than sexual reproduction. Sequencing of the ITS1/2 and IGS-1 rDNA showed small nucleotide diversity in ITS1/2 rDNA and much more diversity in IGS-1 rDNA of the isolates of A. solidipes studied. However, none of these regions has sufficient resolution for the clear differentiation of A. solidipes from A. borealis. The sequences of the EF 1-alpha gene showed high interspecific variability in Armillaria species and very low intraspecific variability in A. solidipes. This gene is the most appropriate for reliable identification of biological species and subgroups of Armillaria. Its application is the most useful in ecological and epidemiological studies of Armillaria.
Źródło:
Dendrobiology; 2015, 74
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical compounds of extracts from Sarcodon imbricatus at optimized growth conditions
Autorzy:
Sulkowska-Ziaja, K.
Szewczyk, A.
Gdula-Argasinska, J.
Ekiert, H.
Jaskiewicz, J.
Muszynska, B.
Powiązania:
https://bibliotekanauki.pl/articles/67540.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Botaniczne
Opis:
The effect of carbon and nitrogen sources and initial pH and temperature of the medium on the mycelial growth of Sarcodon imbricatus (L.) P. Karst. in axenic liquid culture was investigated. The optimal composition of the medium was found to be: 5% fructose, 1% hydrolysate of casein, 1% yeast extract, and 0.3% KH2PO4 at pH = 6 and incubation temperature of 20°C. In this condition the maximum biomass growth was observed, yielding 10.2 g L−1 of dry weight after 3-week of growth. The medium regarded as optimal for growth of S. imbricatus mycelium was used for the production of the biomass and further chemical analysis. The quantitative and qualitative composition of phenolic acids, fatty acids, and sterols were determined using chromatographic methods. The total content of phenolic acids was 1.86 mg × 100 g−1 DW, with the largest amount of protocatechuic acid (1.27 mg × 100 g−1 DW). Nineteen fatty acids were estimated, including five unsaturated fatty acids, e.g., oleic and α-linolenic acid. The analysis of sterols composition revealed the presence of ergosterol and ergosterol peroxide (197.7 and 200.47 mg × 100 g−1 DW, respectively). These compounds were isolated and confirmed by 1H-NMR. Presented study constitutes the first report on the accumulation of substances (phenolic acids, fatty acids, and sterols) with multidirectional biological activity in the mycelial axenic culture of Sarcodon imbricatus.
Źródło:
Acta Mycologica; 2016, 51, 2
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High Resolution Eddy Current Tomography System for Nondestructive Testing
Autorzy:
Salach, J.
Szewczyk, R.
Powiązania:
https://bibliotekanauki.pl/articles/1202343.pdf
Data publikacji:
2014-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.70.Ex
81.70.Tx
Opis:
Idea of the high-resolution eddy current tomography is presented. Proposed system gives possibility of testing cylinder-shaped elements made of both magnetic and non-magnetic materials. To validate the concept, the tomographic measurements are carried out on set of steel cylinders with non-magnetic copper inclusion. Measurements were done during both linear and rotational movement of the element. Achieved results indicate the high sensitivity of system, which creates possibility of its application for non-destructive testing of the elements made of ferromagnetic and non-magnetic materials.
Źródło:
Acta Physica Polonica A; 2014, 126, 1; 402-403
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Industrial Application of Magnetoelastic Force and Torque Sensors
Autorzy:
Bieńkowski, A.
Szewczyk, R.
Salach, J.
Powiązania:
https://bibliotekanauki.pl/articles/1535213.pdf
Data publikacji:
2010-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.80.+q
07.10.Pz
Opis:
Due to their sensitivity, robustness and the flat shape, the magnetoelastic sensors create new possibilities of industrial applications. This paper presents the results of the field tests of using the magnetoelastic sensors with amorphous alloy ring-shaped cores for ignition detection in locomotive's diesel engines as well as measurements of the torque during the operation of ball valves. Presented results confirm usability of amorphous alloy based, magnetoelastic sensors for specific industrial applications.
Źródło:
Acta Physica Polonica A; 2010, 118, 5; 1008-1009
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
PI control of laboratory furnace for annealing of amorphous alloys cores
Autorzy:
Kurek, J. E.
Szewczyk, R.
Salach, J.
Kloda, R.
Powiązania:
https://bibliotekanauki.pl/articles/384934.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
PI controller
resistive furnace
temperature control
Opis:
There are presented theoretical and practical aspects of automatic control of resistive furnace for thermal annealing of magnetic cores made of amorphous alloys. Process of annealing requires specific conditions both from the point of view of temperature and its changes. Solutions presented in the paper create possibility for low value of error as well as fast achievement of set value.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2012, 6, 4; 13-15
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Voltage Dependence of Supercapacitor Capacitance
Autorzy:
Szewczyk, A.
Sikula, J.
Sedlakova, V.
Majzner, J.
Sedlak, P.
Kuparowitz, T.
Powiązania:
https://bibliotekanauki.pl/articles/221295.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Electronic Double-Layer Capacitor (EDLC)
charge diffusion
recovery voltage
Opis:
Electronic Double-Layer Capacitors (EDLC), called Supercapacitors (SC), are electronic devices that are capable to store a relatively high amount of energy in a small volume comparing to other types of capacitors. They are composed of an activated carbon layer and electrolyte solution. The charge is stored on electrodes, forming the Helmholtz layer, and in electrolyte. The capacitance of supercapacitor is voltage- dependent. We propose an experimental method, based on monitoring of charging and discharging a supercapacitor, which enables to evaluate the charge in an SC structure as well as the Capacitance-Voltage (C-V) dependence. The measurement setup, method and experimental results of charging/discharging commercially available supercapacitors in various voltage and current conditions are presented. The total charge stored in an SC structure is proportional to the square of voltage at SC electrodes while the charge on electrodes increases linearly with the voltage on SC electrodes. The Helmholtz capacitance increases linearly with the voltage bias while a sublinear increase of total capacitance was found. The voltage on SC increases after the discharge of electrodes due to diffusion of charges from the electrolyte to the electrodes. We have found that the recovery voltage value is linearly proportional to the initial bias voltage value.
Źródło:
Metrology and Measurement Systems; 2016, 23, 3; 403-411
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 76

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