Autor: Soukup, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Annual runoff coefficient in the Cerhovický Stream catchment
Roczny współczynnik spływu w zlewni strumienia Cerhovickiego
Autorzy:: Vlckova, M.
Nechvatal, M.
Soukup, M.
Powiązania:: https://bibliotekanauki.pl/articles/292962.pdf
Data publikacji:: 2009
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: poziom wód gruntowych
rok mokry
rok suchy
temperatura wody
użytkowanie ziemi
współczynnik spływu
runoff coefficient
dry year
wet year
land use
water temperature
groundwater level
Opis:: The runoff coefficient is one of the fundamental hydrological characteristics of a catchment. It indicates a share of the precipitation water that runs off from the catchment. The results of the runoff coefficient calculation based on measurements carried out continuously in the Cerhovický Stream catchment over a considerable period of time, i.e. from 1988 up to 2006 are presented. The precipitation and runoff data in the catchment were used. Mean value of the runoff coefficient and the runoff coefficients for the agricultural and forest parts of the catchment are presented. The total mean runoff coefficient for the Cerhovický Stream is 0.19 with the standard deviation of 0.06. Mean runoff coefficient for the forest part is 0.13 and for the agricultural part - 0.24. Differences between the years with a higher and a lower precipitation were followed as well. We also statistically evaluated possible hydrological changes caused by the construction of the highway and the market centre. For another possible explanation of quite high standard deviation of the mean annual runoff coefficient we followed the monthly runoff coefficient dependence on water temperature and of ground water table depth.
Współczynnik spływu jest jedną z podstawowych cech hydrologicznych zlewni. Określa on tę część wód opadowych, która odpływa ze zlewni. W pracy przedstawiono wyniki obliczeń współczynnika spływu na podstawie ciągłych i długotrwałych (1988-2006) pomiarów opadu i spływu, prowadzonych w zlewni strumienia Cerhovickiego. Podano średni współczynnik spływu dla zlewni i oddzielnie dla jej części rolniczej i zalesionej. Średni współczynnik dla zlewni wynosił 0,19 z odchyleniem standardowym 0,06. Średnie współczynniki spływu dla części zalesionej i użytkowanej rolniczo wynosiły odpowiednio 0,13 i 0,24. Analizowano także różnice między latami o większych i mniejszych opadach atmosferycznych. Statystycznie oceniono również możliwe zmiany hydrologiczne spowodowane budową autostrady i centrum handlowego. Aby wyjaśnić względnie wysokie odchylenie standardowe od średniego rocznego współczynnika spływu, zbadano zależność miesięcznych wartości współczynnika od temperatury wody i poziomu zwierciadła wód gruntowych.
Źródło:: Journal of Water and Land Development; 2009, no. 13b; 41-56
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Bioactive hydroxyapatite ceramics as scaffolds for bone tissue engineering – a preliminary study
Autorzy:: Soukup, D.
Horakova, D.
Sumberova, H.
Andertova, J.
Bacakova, M.
Bacakova, L.
Powiązania:: https://bibliotekanauki.pl/articles/285204.pdf
Data publikacji:: 2011
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: hydroxyapatite
tissue engineering
scaffolds
Źródło:: Engineering of Biomaterials; 2011, 14, no. 106-108; 13-16
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Guelph permeameter measurements of the topsoil and upper subsoil hydraulic conductivity for characterising the structural state of arable lands
Autorzy:: Dolezal, F.
Kuraz, V.
Poruba, M.
Soukup, M.
Powiązania:: https://bibliotekanauki.pl/articles/24948.pdf
Data publikacji:: 1997
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: hydraulic conductivity
arable land
soil structure
soil water
moisture content
infiltration measurement
nutrient regime
structure dynamics
soil moisture
soil texture
Źródło:: International Agrophysics; 1997, 11, 3
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Human bone-derived cells on C-C composites treated by grinding, a-C:H coating, laser irradiation and laser perforation
Autorzy:: Bacakova, L.
Beranek, L.
Bacakova, M.
Soukup, D.
Lisa, V.
Dvorak, R.
Powiązania:: https://bibliotekanauki.pl/articles/284392.pdf
Data publikacji:: 2008
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: CFRC
kompozyty
DLC
composites
Opis:: Carbon fiber-reinforced carbon (CFRC) composites were modified by grinding with abrasive papers, laser irradiation, coating with diamond-like carbon (DLC), creation of pores by laser perforation and various combinations of these treatments, and seeded with human osteoblast-like MG 63 cells. Twenty four hours after seeding, the lowest cell numbers were obtained on the non-ground, non-coated composites with Type 1 laser perforations (diameter 0.1 mm, depth 0.2 mm, spacing 0.3 mm), i.e., on samples with relatively high surface roughness (R a = 17.7 ± 0.9 μm, S = 93.0 ± 2.0 μm). On the other hand, the cells on these samples were well-spread, adhering with a relatively large cell-material projected area. In comparison with these samples, a significantly higher number of cells were obtained on composites treated with a DLC coating, especially those with laser perforation 2 (diameter 0.4 mm, depth 0.8 mm, spacing 1.2 mm). The cells on both types of laser-perforated samples started to colonize pores created by the laser beam.
Źródło:: Engineering of Biomaterials; 2008, 11, 75; 2-6
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The influence of temperature and pore size on cell growth and proliferation on hydroxyapatite scaffolds
Autorzy:: Soukup, D.
Bacakova, M.
Pabst, W.
Gregorova, E.
Bacakova, L.
Powiązania:: https://bibliotekanauki.pl/articles/284010.pdf
Data publikacji:: 2012
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: biomaterials
porous biomaterials
scaffolds
Opis:: Porous biomaterials, especially synthetic porous ceramics, are of significant importance in bone tissue engineering, and there has been rapid growth in the medical use of these biomaterials over the last 50 years. The reason is that they are relatively easy to prepare and are available in unlimited supply, unlike the allografts and autografts that are used in clinical practice. Various hydroxyapatite (HAp) scaffolds can be prepared, using various pore-forming techniques and firing temperatures. The firing temperature significantly affects microstructural parameters such as total porosity, pore size, the interconnected pore network, and also the chemical and phase composition. Last but not least, it also affects the mechanical properties of the samples. Knowledge about these factors is therefore essential for designing a sample with the desired controlled microstructure and properties. In this work, uniaxial pressing has been used for preparing HAp disks from nanocrystalline HAp powder, using saccharose as a pore-forming agent. The highest porosity achieved (after partial sintering at 800°C) was in the range of 64.7-70.6%. The firing temperature significantly affects porosity, pore size, grain size and mechanical strength, whereas the dwell time has only a minor effect on these parameters. After firing, XRD confirmed more than 98.4% HAp in all cases. Mercury porosimetry confirmed the presence of nanosized interstitial voids for partially sintered materials and pore throat sizes of approximately 100μm (much smaller than the pore cavities), which is adequate for bone cell penetration and further ingrowth. After firing at 1200°C, the matrix is more or less fully sintered, and nanosized pores are absent or closed. The biological part of the paper summarizes the results from cell-seeding and cultivation experiments to determine the cell adhesion, proliferation, viability, mitochondrial activity and osteogenic cell differentiation on the scaffolds, and thus the biocompatibility and bioactivity of the scaffolds. The highest values for all these parameters, particularly the number of cells, were on HAp fired at 1200°C. The samples fired at 1200°C were prepared with various pore sizes (in the range of 100 - 800μm). We found that pore size has a non-significant effect on cell colonization, whereas the firing temperature has a major influence. All tested HAp samples showed a remarkable ability to adsorb proteins on their surfaces, namely albumin and fibronectin, and to promote cell adhesion. Some cytotoxic activity was observed on the samples fired at 800 and 1000°C. Possible reasons for this cytotoxicity have been discussed. However, it can be concluded that the HAp samples created in this study and fired at 1200°C hold great promise for bone tissue engineering.
Źródło:: Engineering of Biomaterials; 2012, 15, no. 116-117 spec. iss.; 127
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki

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