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Wyszukujesz frazę "Brzezinska, Z." wg kryterium: Wszystkie pola


Tytuł:
Database of Polish arable mineral soils: a review
Autorzy:
Bieganowski, A.
Witkowska-Walczak, B.
Glinski, J.
Sokolowska, Z.
Slawinski, C.
Brzezinska, M.
Wlodarczyk, T.
Powiązania:
https://bibliotekanauki.pl/articles/26522.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
The database of Polish arable mineral soils is presented. The database includes a lot of information about the basic properties of soils and their dynamic characteristics. It was elaborated for about 1 000 representative profiles of soils in Poland The database concerns: particle size distribution, organic carbon content, acidity-pH, specific surface area, hydrophobicity – solidliquid contact angle, static and dynamic hydrophysical properties, oxidation-reduction properties and selected biological (microbiological) properties of soils. Knowledge about soil characteristics is indispensable for description, interpretation and prediction of the course of physical, chemical and biological processes, and modelling these processes requires representative data. The utility of simulation and prediction models describing phenomena which take place in the soil-plant-atmosphere system greatly depends on the precision of data concerning characteristics of soil. On the basis of this database, maps of chosen soil properties are constructed. The aim of maps is to provide specialists in agriculture, ecology, and environment protection with an opportunity to gain knowledge of soil properties and their spatial and seasonal variability.
Źródło:
International Agrophysics; 2013, 27, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The lateral distribution of the effective contact potential difference over the gate area of MOS structures
Autorzy:
Przewłocki, H. M.
Kudła, I.
Brzezińska, D.
Borowicz, L.
Sawicki, Z.
Massoud, H. Z.
Powiązania:
https://bibliotekanauki.pl/articles/378397.pdf
Data publikacji:
2003
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Elektronowej
Opis:
The lateral distribution of the effective contact potential difference (ECPD), often referred to as the work-function difference φMS, was determined experimentally for the first time over the gate area of a metal-oxide-semiconductor (MOS) structure. The photoelectric method for measuring φMS in MOS devices was modified to characterize the lateral distribution of ECPD. In square MOS gates, it is found that φMS values were highest in the center area of the gate, lower along the gate edges, and lowest at the gate corners. These results were confirmed by several independent photoelectric and electrical measurement methods. A model is proposed, in which the experimentally determined φ(x,y) distributions, are attributed to mechanical stress distribtitions in MOS structures. Equations are derived allowing calculation of φMS(x,y) distributions for various structures. Results of these calculations remain in agreement with experimentally obtained distributions.
Źródło:
Electron Technology : Internet Journal; 2003, 35, 6; 1-6
1897-2381
Pojawia się w:
Electron Technology : Internet Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Visualization of categorical data using extracat package in R
Wizualizacja danych jakościowych z wykorzystaniem pakietu extracat programu R
Autorzy:
Brzezińska, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/425199.pdf
Data publikacji:
2018
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
categorical data
cpcp plot
rmb plot
fluctile plot
R software
Opis:
Visualization in research process plays a crucial role. There are several advanced plots for visualizing categorical data, such as mosaic, association, double-decker, sieve or fourfold plot that are based on the graphical presentation of residuals in a contingency table. In this paper we present new methods for visualizing categorical data such as rmb, fluctile and scpcp plot available in extracat package in R. This package provides a well-structured representation of categorical data and allows for a detailed presentation of the relationship between categories in terms of proportions. We describe rmb, fluctile and cpcp. Those plots are based on the concept of multiple bar charts, a fluctuation diagram from a multidimensional table and parallel coordinates respectively. Such plots are mostly used for a visualization of a contingency table or a data frame; they can also be used for exploratory analysis and allows for a graphical presentation even for a high number of variables [Pilhöfer, Unwin 2013]. All the calculations and plots are obtained using R software.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2018, 22, 2; 9-19
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Denitrification, organic matter and redox potential transformations in Cambisols
Autorzy:
Wlodarczyk, T.
Stepniewska, Z.
Brzezinska, M.
Powiązania:
https://bibliotekanauki.pl/articles/24127.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
clay
silt
organic matter
greenhouse gas
Polska
sand
denitrification
loess
soil respiration
flood condition
redox potential
Źródło:
International Agrophysics; 2003, 17, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical analysis of economic poverty in Poland using R
Statystyczna analiza ekonomicznego ubóstwa w Polsce z wykorzystaniem programu R
Autorzy:
Brzezińska, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/425034.pdf
Data publikacji:
2018
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
economic poverty
multivariate statistical analysis
categorical data analysis
R software
Opis:
Economic poverty is one of the more common and complex problems in the modern world, as well as in Poland. This is a complex and multidimensional phenomenon, and therefore there is no single universally valid definition of poverty. This article presents a statistical analysis of economic poverty in Poland based on real data from the Central Statistical Office of Poland. An in-depth statistical analysis of the social situation of Poles will be presented, as well as an attempt to examine interdependencies in the occurrence of various forms of poverty and social exclusion in Poland. In the article, several multivariate statistical methods are presented together with the graphical presentation of results. We present a correspondence analysis with a perception map, as well as the advanced modern visualizing tool for categorical data. All the calculations were conducted using R software.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2018, 22, 2; 45-53
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variability of the local phi MS values over the gate area of MOS devices
Autorzy:
Przewłocki, H. M.
Kudła, A.
Brzezińska, D.
Massoud, H. Z.
Powiązania:
https://bibliotekanauki.pl/articles/308803.pdf
Data publikacji:
2005
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
MOS structure
photoelectric measurements
electrical parameters
mechanical stress
Opis:
The local value distributions of the effective contact potential difference (ECPD or the phi MS factor) over the gate area of Al-SiO2-Si structures were investigated for the first time. A modification of the photoelectric phi MS measurement method was developed, which allows determination of local values of this parameter in different parts of metaloxide-semiconductor (MOS) structures. It was found that the phi MS distribution was such, that its values were highest far away from the gate edge regions (e.g., in the middle of a square gate), lower in the vicinity of gate edges and still lower in the vicinity of gate corners. These results were confirmed by several independent photoelectric and electrical measurement methods. A model is proposed of this distribution in which the experimentally determined phi MS (x; y) distributions, found previously, are attributed to mechanical stress distributions in MOS structures. Model equations are derived and used to calculate phi MS (x; y) distributions for various structures. Results of these calculations remain in agreement with experimentally obtained distributions. Comparison of various characteristics calculated using the model with the results of photoelectric and electrical measurements of a wide range of Al-SiO2-Si structures support the validity of the model.
Źródło:
Journal of Telecommunications and Information Technology; 2005, 1; 34-44
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of methane concentration on methanotrophic activity of Mollic Gleysol and Haplic Podzol
Autorzy:
Wlodarczyk, T.
Stepniewska, Z.
Brzezinska, M.
Pindelska, E.
Przywara, G.
Powiązania:
https://bibliotekanauki.pl/articles/26316.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
methanotrophic activity
soil
methane concentration
Haplic Podzol
Mollic Gleysol
respiration
Źródło:
International Agrophysics; 2004, 18, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Properties of Pb1-xBax(Zr1-yTiy)1-zSnzO3 (x = 0.03, y = 0.02, z = 0÷0.08) Ceramics
Autorzy:
Brzezińska, D.
Powiązania:
https://bibliotekanauki.pl/articles/354740.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
PBZT and PBZTS ceramics
phase transitions
dielectric properties
electrical conductivity
Opis:
This paper presents the results of obtaining and investigations of Pb1-xBax(Zr1-yTiy)1-zSnzO33(PBZTS) ceramics with constant x = 0.03 and y = 0.02, and variable z = 0, 0.04, 0.06 and 0.08 (abbreviations of the samples were following PBZTS0, PBZTS4, PBZTS6, PBZTS8, respectively). The investigated compositions are close to rhombohedral-orthorhombic morphotropic phase boundary. The ceramic samples have been obtained by conventional ceramic technology from simple oxides PbO, ZrO2, TiO2, SnO2 and barium carbonate BaCO3. The ceramic powders, after calcination, have been pressed into discs and sintered using free sintering (FS) method. For samples obtained in such a way, the dielectric properties at various frequencies and electrical conductivity have been investigated. The increase of Sn content orders the microstructure of ceramics, and as a result the improvement of the dielectric properties of ceramic samples can be obtained.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 2; 975-982
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of wastewater application on magnetic susceptibility in Terric Histosol soil
Autorzy:
Sokolowska, Z.
Alekseev, A.
Skic, K.
Brzezinska, M.
Powiązania:
https://bibliotekanauki.pl/articles/25762.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
waste water
irrigation
application
magnetic susceptibility
Terric Histosol soil
total carbon
heavy metal
municipal waste water
Źródło:
International Agrophysics; 2016, 30, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aeration status of some Slovakian soils
Autorzy:
Stepniewska, Z.
Brzezinska, M.
Glinski, J.
Stepniewski, W.
Wlodarczyk, T.
Curlik, J.
Houskova, B.
Powiązania:
https://bibliotekanauki.pl/articles/25255.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
air permeability
catalase activity
water tension
aeration
soil
Slovak Republic
dehydrogenase activity
soil aeration status
agrophysics
Źródło:
International Agrophysics; 2000, 14, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of oxygen conditions on the yield and mineral composition of triticale cv.Jago
Autorzy:
Przywara, G.
Stepniewski, W.
Stepniewska, Z.
Brzezinska, M.
Wlodarczyk, T.
Powiązania:
https://bibliotekanauki.pl/articles/24053.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
mineral composition
farmland ecosystem
Triticale
yield
poor aeration
Jago cultivar
oxygen condition
Źródło:
International Agrophysics; 2001, 15, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aeration properties and enzyme activity on the example of Arenic Chernozem [Tisice]
Autorzy:
Wlodarczyk, T.
Glinski, J.
Stepniewski, W.
Stepniewska, Z.
Brzezinska, M.
Kuraz, V.
Powiązania:
https://bibliotekanauki.pl/articles/24679.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
aeration property
soil
catalase
enzyme activity
oxidoreductase
black earth
dehydrogenase activity
soil enzyme
Źródło:
International Agrophysics; 2001, 15, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dehydrogenase and catalase activity in Eutric Histosol as affected by soil temperature and water content
Autorzy:
Brzezinska, M
Stepniewska, Z.
Stepniewski, W.
Pasztelan, M.
Powiązania:
https://bibliotekanauki.pl/articles/1401863.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
catalase activity
soil water
Eutric Histosol
redox potential
soil temperature
dehydrogenase activity
soil enzyme
water content
Opis:
Soil enzyme activity indicates potential of the soil to sustain biochemical processes, which are essential for the maintenance of soil fertility. Dehydrogenase activity reflects total oxidative activity of soil microflora, catalase activity is responsible for the decomposition of H2O2. Redox potential (Eh) is an index of the soil aeration status. Effects of soil temperature and water content on Eh, soil dehydrogenase activity and catalasc activity in an Eutric Histosol at three different fields planted with Papulus nigra, Salix amencana, and grasses (with Alopecurits pratensis, Phalaris arundinacea, Festuca pratensis is as dominating species) were studied at the depths of 10, 30, 50, 70 cm. Enzyme activity and redox potential showed seasonal fluctuations following natural changes of soil water content and temperature. Dehydrogenase activity was significantly correlated with soil temperature and water content (r=0.37** and r=0.27***, respectively). Redox potential showed a significant correlation with soil water content (r=-0.32*** ). Catalase activity did not exhibit any correlation with the tested parameters. The type of plantation influenced enzyme activities; tree cover was characterised by higher dehydrogenase and catalase activities than meadow soils.
Źródło:
Acta Agrophysica; 2000, 35; 31-40
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non-nucleosidic analogs of nucleic acids
Autorzy:
Brzezinska, J.
Adrych-Rozek, K.
Jahnz-Wechmann, Z.
Boryski, J.
Markiewicz, W.T.
Powiązania:
https://bibliotekanauki.pl/articles/80212.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nucleic acid
oligonucleotide
oligonucleotide analogue
non-nucleosidic nucleic acid
glycerol nucleic acid
natural nucleobase
ring system
hydrolysis
biological membrane
non-radioactive probe
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2012, 93, 4
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relations between aeration status and physical parameters of some selected Hungarian soils
Autorzy:
Stepniewski, W.
Stepniewska, Z.
Przywara, G.
Brzezinska, M.
Wlodarczyk, T.
Varallyay, G.
Powiązania:
https://bibliotekanauki.pl/articles/25151.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
air permeability
soil
physical parameter
air-filled porosity
Hungary
gas diffusion coefficient
aeration status
water content
Źródło:
International Agrophysics; 2000, 14, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł

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