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Wyszukujesz frazę "Kocjan, K." wg kryterium: Autor


Wyświetlanie 1-10 z 10
Tytuł:
Automatic plantography footprint database searching method
Autorzy:
Kocjan, K.
Kotarski, W.
Powiązania:
https://bibliotekanauki.pl/articles/333773.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
wyszukiwanie obrazów w bazach danych
Searching image databases
flat foot
shape-measure
Opis:
In this note we present a very simple database searching method for footprints of the desired flatfoot abnormality. The method is based on the new shape-measure introduced in [7]. The used measure describes flatfoot abnormalities very well, do not use reference points determined manually, so is it easily implemented for fully automatic footprints comparison task. Experiments carried out on a number of plantograms, with the help of the software prepared by the first author, approved good searching results of the described method.
Źródło:
Journal of Medical Informatics & Technologies; 2005, 9; 209-213
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An automatic footshape plantograms analysis based on a new shape-measure
Autorzy:
Kocjan, K.
Kotarski, W.
Powiązania:
https://bibliotekanauki.pl/articles/333053.pdf
Data publikacji:
2004
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
analiza kształtu
płaskostopie
shape analysis
flat foot
Opis:
In this note we present a method for recognition of flatfoot abnormality with the help of some new shape-measure describing numerically this abnormality efficient enough. The proposed measure can be easily implemented and used for automatic flatfoot level diagnosis. Experiments carried out on a number of the plantograms, analysed using the computer programme prepared by first of the authors, proved the usefulness of this new approach.
Źródło:
Journal of Medical Informatics & Technologies; 2004, 8; II15-20
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fourier analysis in classification of blood cells
Autorzy:
Kocjan, K.
Kotarski, W.
Powiązania:
https://bibliotekanauki.pl/articles/333147.pdf
Data publikacji:
2003
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
analiza Fouriera
komórki krwi
Fourier analysis
blood cells
Opis:
In the paper we present some results concerning the usage of Fourier analysis which we can successfully apply to distinguish between normal and pathological blood cells. We use special area function and different number of Fourier descriptors that are automatically calculated for all objects pointed out in an image. Calculations are performed with the help of the software made by the first author. Experiments performed on the same set of tested images as in [3] and [5] draw as to the same conclusions as there in [3] where the fractal analysis to shape has been used and in [5] where simple geometrical shape parameters have been applied. Other application of Fourier analysis one can find in [9].
Źródło:
Journal of Medical Informatics & Technologies; 2003, 5; MI61-66
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Blood cells analysis based on simple geometrical shape descriptors
Autorzy:
Kocjan, K.
Kotarski, W.
Widuch, S.
Powiązania:
https://bibliotekanauki.pl/articles/332950.pdf
Data publikacji:
2002
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
analiza kształtu
komórki krwi
shape analysis
blood cells
Opis:
In the paper we present some results concerning application of simple shape parameters that are successfully used to distinguish between normal and pathological blood cells. All descriptors are based on shape area and its perimeter. We use five parameters that are automatically calculated for objects pointed out in the analyzed image with the help of our software. The experiments performed on the same set of tested images as in [3] let us draw the same conclusions as those reported in [3] where fractal analysis to shape has been used.
Źródło:
Journal of Medical Informatics & Technologies; 2002, 3; MI207-212
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
System stabilizacji temperatury w komorze pomiarowej
Temperature stabilization system for controlling temperature in measurement chamber
Autorzy:
Kocjan, B.
Krawczyk, K.
Powiązania:
https://bibliotekanauki.pl/articles/268309.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
Tematy:
pomiary rezystancji
stabilizacja temperatury
resistance measurements
temperature stabilization system
Opis:
Zaprezentowano system do stabilizacji temperatury rezystorów wzorcowych podczas ich wzorcowania z bardzo wysoką dokładnością. Podstawowym elementem tego systemu jest komora pomiarowa z modułami Peltiera. Przedstawiono konstrukcję tej komory i wyniki wstępnych badań stabilności długoterminowej temperatury z uwzględnieniem wpływu warunków otoczenia na dokładność systemu. System zapewnia długoterminową stałość temperatury 23°C wewnątrz komory z niestałościa ±0,02 °C.
One of the factor that influence accuracy of resistance measurements is temperature change during measurements. This paper describes a system to maintain stable air temperature in a measurement chamber. The aim of the system is to stabilize temperature of resistance standards during measurements. Presented system consist of a measurement chamber and temperature controller. In this paper the construction of the measurement chamber and the temperature controller is discussed. Moreover results of the system stabilization tests are presented. The designed and tested stabilization system maintains settled air temperature with the accuracy ±0.015 °C. This satisfied temperature stability requirements for measurements of resistance standard.
Źródło:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2017, 54; 131-134
1425-5766
2353-1290
Pojawia się w:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Koncepcja dwutorowego systemu przekazywania jednostki rezystancji od wzorca pierwotnego QHR do wzorców o wartościach do 100 TΩ
Idea of double path system for resistance unit transfer from QHR primary standard to 100 TΩ standards
Autorzy:
Lisowski, M.
Krawczyk, K.
Kocjan, B.
Powiązania:
https://bibliotekanauki.pl/articles/157896.pdf
Data publikacji:
2012
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
wzorce rezystancji
transfery Hamona
pomiary rezystancji
system pomiarowy
niepewność pomiarów
resistance standards
Hamon transfers
resistance measurements
measurements systems
measurement uncertainty
Opis:
Proponowany system jest uzupełnieniem zrealizowanego, w ramach projektu badawczego rozwojowego, systemu przekazywania jednostki rezystancji od wzorca pierwotnego QHR do wzorców wtórnych o dodatkowy drugi tor. Zapewni to weryfikację uzyskanych wyników, co ma bardzo istotne znaczenie dla pomiarów o najwyższych dokładnościach. Wymagać to będzie skonstruowania nowych czterech transferów rezystancji: (0,1-1-10) MΩ, (10-100-1000) MΩ, (1-10-100) GΩ i (0,1-1-10) TΩ.
Authors describe the resistance unit transfer system, from the primary standard QHR to 100 TΩ standards based on Hamon transfers, which they developed (Fig. 1) [5, 6, 8]. Resistance unit is transferred from the QHR to 100 Ω standard with the Cryogenic Current Comparator (CCC), and then with the same comparator to 10 kΩ standard. Next to standard up to 1 GΩ? Hamon, the transfers with Measuremnt International 6000B bridge are used. Above 1 GΩ up to 100 TΩ Hamon transfers and Guildline 6500 teraommeter are used. Hamon transfers which are used in the system are sealed in metal boxes which protect from humidity and external interferences; they are also thermostated with instability of š0.01 °C [5, 9]. Described system is very accurate if voltage applied to Hamon transfer resistors is constant. In practice this is impossible and corrections due to voltage change are necessary, what is main limitation of this system accuracy. Furthermore measurement equipment does not enable sufficient voltage regulation what causes additional errors. Secondary standards are not thermally stabilized, and for teraommeter it is impossible to set measurement time. Described system enables resistance unit transfer with only one path, this does not allow to verify results of measurements. Therefore authors propose to equip existing system with second path, based on additional four Hamon transfers (Fig. 2.). Authors also propose to develop special thermostats for secondary standards and active-arm bridge (Fig. 3.) [10].
Źródło:
Pomiary Automatyka Kontrola; 2012, R. 58, nr 9, 9; 779-781
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Minimalizacja prądów powierzchniowych rezystorów teraomowych w transferach wysokich rezystancji
Minimization of resistors surface currents of the teraohm resistance guarded transfer devices
Autorzy:
Lisowski, M.
Kocjan, B.
Krawczyk, K.
Powiązania:
https://bibliotekanauki.pl/articles/268496.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
Tematy:
pomiary rezystancji teraomowych
prądy powierzchniowe rezystorów
transfer wysokich rezystancji
teraohm resistance measurements
high resistance transfer devices
surface currents of resistors
Opis:
Jednym z wielu czynników wpływających na dokładność transferów teraomowych są prądy powierzchniowe rezystorów. W referacie przedstawiono metodykę badań wpływu tych prądów na mierzoną wartość rezystancji. Zamieszczono wyniki badań eksperymentalnych wykonanych na modelu fizycznym składającym się z dwóch 10 TΩ rezystorów w gałęzi głównej i dwóch 0,1 TΩ rezystorów w gałęzi pomocniczej.
One of the factor that influence accuracy of high value resistors measurements is presence of surface currents. In the paper the influence of resistors surface currents on high value resistors resistance is discussed. The results of research over minimization of surface currents by applying conductive protective electrode on high value resistors are presented. Also the way of minimization of surface currents in the guarded resistance transfer devices are presented. Moreover, the way of changing resistance settling times are presented.
Źródło:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2018, 59; 127-130
1425-5766
2353-1290
Pojawia się w:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time-related variability of the mineral content in birch tree sap
Autorzy:
Bilek, M.
Szwerc, W.
Kuźniar, P.
Stawarczyk, K.
Kocjan, R.
Powiązania:
https://bibliotekanauki.pl/articles/1190127.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
tree saps
minerals
time-related variability
food standards
nutritional benefits
Opis:
Minerals are among the most important substances promoting the beneficial effect of tree sap on a human body. However, the composition of tree saps is characterised by high intra- and interspecies variability and it is also known to vary in time even when collected from trees of the same species. The aim of this work was to evaluate the time-related variability of the mineral content in birch tree sap, to prove dependencies between the mineral composition and basic physical parameters of tree saps, and to refer the results obtained in our study to the Polish nutritional standards. Based on the results, it can be concluded that there is no point in time when birch sap invariably achieves superior nutritive values. This is proven by the fact that two of the three tested birch trees had a higher content of minerals at the beginning of sap collection, while the remaining one produced better sap at the end of the experiment. The differences in the mineral composition of tree saps observed during the two-week study raise doubt about the nutritional benefits of their content. For example, one liter of sap collected during two weeks from the three tested birches supplied from 8.49 to 26.34%, 0.9 to 2.80% and 9.17 to 20.23% of the adequate intake of potassium defined in the Nutritional standards for the Polish population (2013). For zinc, the recommended dietary allowance value based on the Nutritional standards for the Polish population (2013) was covered by one liter of sap in the following ranges: from 0 to 2.11%, from 0.85 to 21.50% and from 7.34 to 15.63%. Moreover, it is impossible to estimate the nutritional value of tree saps, understood as the mineral content, from the physical parameters of birch saps. The values of the examined parameters did not correspond reliably to the mineral content. Nonetheless, electrolytic conductivity may reflect more faithfully the nutritional benefits. The higher the EC in the saps from two out of the three birch trees tested, the higher the expected concentration of minerals important for humans, i.e. calcium, zinc and potassium.
Źródło:
Journal of Elementology; 2017, 22, 2; 497-515
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time-related variability of the mineral content in birch tree sap
Autorzy:
Bilek, M.
Szwerc, W.
Kuźniar, P.
Stawarczyk, K.
Kocjan, R.
Powiązania:
https://bibliotekanauki.pl/articles/961402.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Minerals are among the most important substances promoting the beneficial effect of tree sap on a human body. However, the composition of tree saps is characterised by high intra- and interspecies variability and it is also known to vary in time even when collected from trees of the same species. The aim of this work was to evaluate the time-related variability of the mineral content in birch tree sap, to prove dependencies between the mineral composition and basic physical parameters of tree saps, and to refer the results obtained in our study to the Polish nutritional standards. Based on the results, it can be concluded that there is no point in time when birch sap invariably achieves superior nutritive values. This is proven by the fact that two of the three tested birch trees had a higher content of minerals at the beginning of sap collection, while the remaining one produced better sap at the end of the experiment. The differences in the mineral composition of tree saps observed during the two-week study raise doubt about the nutritional benefits of their content. For example, one liter of sap collected during two weeks from the three tested birches supplied from 8.49 to 26.34%, 0.9 to 2.80% and 9.17 to 20.23% of the adequate intake of potassium defined in the Nutritional standards for the Polish population (2013). For zinc, the recommended dietary allowance value based on the Nutritional standards for the Polish population (2013) was covered by one liter of sap in the following ranges: from 0 to 2.11%, from 0.85 to 21.50% and from 7.34 to 15.63%. Moreover, it is impossible to estimate the nutritional value of tree saps, understood as the mineral content, from the physical parameters of birch saps. The values of the examined parameters did not correspond reliably to the mineral content. Nonetheless, electrolytic conductivity may reflect more faithfully the nutritional benefits. The higher the EC in the saps from two out of the three birch trees tested, the higher the expected concentration of minerals important for humans, i.e. calcium, zinc and potassium.
Źródło:
Journal of Elementology; 2017, 22, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of various strontium concentrations on its uptake and the content of isoflavonesin soybean sprouts
Autorzy:
Wojciak-Kosior, M.
Dresler, S.
Sowa, I.
Luc, K.
Staniak, M.
Latalski, M.
Zapala-Kielbowicz, K.
Kocjan, R.
Powiązania:
https://bibliotekanauki.pl/articles/2117832.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
glycine max (l.) Merr.
isoflavones
soy
sprouts
strontium
Opis:
Metal ions can modify plant metabolism and change the level of biologically active components. In the present study, the impact of short-term exposure to strontium on the accumulation of the metal as well as the content of isoflavones in soybean sprouts was investigated. The seeds were germinated in hydroponics with 0, 1, 1.5, 2.5, 5.0, or 10.0 mM of Sr for 72 hours. The content of strontium was assessed using flame atomic absorption spectrometry and the amount of isoflavones was determined with high performance liquid chromatography. dose-dependent accumulation of Sr and a linear correlation between the Sr concentration in the growth medium and the content of the element in the plant samples were observed. The largest changes in the isoflavone content, compared to the control, were noted in soy sprouts germinated in the presence of 5 and 10 mM of strontium. daidzin, genistin, malonyldaidzin, and malonylgenistin were the dominant isoflavones and their content increased by approx. 28, 44, 34, and 47%, respectively, compared to the control. low amounts of aglycones were found; moreover, their content decreased by ca. 19–30%. Our research can be important for obtaining a natural product enhanced with strontium and isoflavones, which contribute to prevention of osteoporosis associated with endog- enous oestrogen deficits
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2019, 61, 2; 7-12
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-10 z 10

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