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68682. The study of flow type dynamics at pedon scale via morphometric parameter analysis of dye-pattern profiles

Creator:
Bebej, Juraj, Orfánus, Tomáš, Homolák, Marián, Ben-Hur, Meni, Pichler, Viliam, and Capuliak, Jozef
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
dye pattern, preferential flow, flow types, image analysis, morphometric parameters, and spatio-temporal flow of dye solution
Language:
Slovak
Description:
The application of Brilliant Blue FCF tracer enables to identify flow types in multi-domain porous systems of soils via analyses of morphologic parameters of stained objects occurring in dye pattern profiles, as they represent the footprint of flow processes which occurred in soil during both the infiltration and the redistribution of dye solution. We analysed the vertical dye pattern profiles exposed for different time lengths, and revealed temporal evolution of dye solution redistribution leading to changes in flow types. The field experiment was performed with the Brilliant Blue tracer (the 10 g l–1 concentration) applied on 1m x 1m surface of the Dystric Cambisol. The top litter horizon had been removed before 100 l of the tracer was applied. Four vertical profiles were excavated on the experimental plot (always 20 cm apart) at different times after the irrigation had been finished: 2 hours (CUT 2), 24 hours (CUT 24), 27 hours (CUT 27) and 504 hours (CUT 504). The analyses of the dyed patterns profiles showed the spatio-temporal changes in the dye coverage, surface area density, average BB concentration, and stained path width, which allowed us to specify three stages of dye solution redistribution history: (i) a stage of preferential macropore flow, (ii) a stage of strong interaction between macropore-domain and soil matrix leading to the generation of heterogeneous matrix flow and fingering flow types, and (iii) a final stage of dye redistribution within the soil body connected with leaching of BB caused by meteoric water. With increasing time, the macropore flow types convert to mostly matrix-dominated FTs in the upper part of the soil profile. These results were supported by soil hydrological modelling, which implied that more than 70% of the soil moisture profiles variability among CUT 2–CUT 504 could be explained by the time factor.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

68684. The study of selected magmatic rocks thermic reworking for the purpose of thermic sinking

Creator:
Farkašovský, Roman and Michal Zacharov
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, žuly, granites, thermic sinking, andesite, hermic reworking, 7, and 551
Language:
English
Description:
To verify possibilities of the thermic sinking technology the experiments with magmatic rocks (muscovite-biotite granite, amphibole-pyroxene andesite, pyroxene basalt) were made in the preliminary research phase. The contribution presents the microscopic study results of petrographic and structural observations of the rocks after their thermic reworking. Mainly distribution of melted rocks in the form of glass, forming of brittle deformations (fractures) on the level of mineral and rock, and penetration of melt into fissures were observed., Roman Farkašovský and Michal Zacharov., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

68685. The study of the relationship between cracks and seismic parameters of rocks

Creator:
Stan-Kleczek, Iwona, Sutkowska, Katarzyna, Stan, Dominika, and Zolich, Mikołaj
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, trhliny (fyzika), skály, cracks (physics), rocks, seismic measurement, crack tensor, velocity tensor, 7, and 551
Language:
English
Description:
This paper presents the relation between main crack systems and physical properties of carbonate rocks. The existence of cracks in a rock mass causes the reduction of seismic wave velocity, which is smaller in direction perpendicular to a crack plane than in direction parallel to it. This affects the occurrence of the anisotropy of seismic wave velocity, which is characteristic for rocks with preferred orientation of cracks. The existence of relationship between crack and seismic anisotropy allowed to use geophysical methods for determination of fracture density and orientation of crack systems. The research area is located in the south-east part of the Upper Silesian Trough. Tectonic observation and geophysical measurements was carried on the carbonate sequence on the both fold limbs building the Chrzanow-Wilkoszyn Syncline, originated during the Early Cimmerian movements, in the Upper Triassic - Middle Jurassic period. It was measured seismic waves velocity in the surface layers of rock mass and the strike azimuth and dip angle of cracks.The seismic anisotropy of the rock mass was done along radial profiles having common central point using P.A.S.I. Seis mograph (Mod.16S24-N). Results of field measurements were interpreted to estimate components of crack and velocity tensors. Obtained outcomes allowed to compare the existing main crack systems on the both fold limbs with seismic measurements. Eventually we have shown that seismic measurements are useful tool to study the cracks anisotropy in rocks inaccessible for direct observations., Iwona Stan-Kleczek, Katarzyna Sutkowska, Dominika Stan and Mikołaj Zolich., and Obsahuje bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

68686. The study on semicopula based implications

Creator:
Peng, Zuming
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
semicopula, fuzzy implications, semicopula based implications, (U,N)-implications, and 2-increasing
Language:
English
Description:
Recently, Baczyński et al. (2017) proposed a new family of implication operators called semicopula based implications, which combines a given a priori fuzzy implication and a semicopula. In this paper, firstly, the relationship between the basic properties of the priori fuzzy implication and the semicopula based implication are analyzed. Secondly, the conditions such that the semicopula based implication is a fuzzy implication are studied, the study is carried out mainly in the case that the semicopula is a special family semicopula and the priori fuzzy implication is a (U,N)-implication. Moreover, the case that the semicopula based implication is 2-increasing (directionally decreasing, respectively) is also considered.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

68687. The Subcellular targets of mercaptoborate (BSH), a carrier of 10B for neutron capture therapy (BNCT) of brain tumors

Creator:
Vladislav Mareš, Krajčí, D., and Věra Lisá
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Fyziologie člověka a srovnávací fyziologie, mozkové nádory, mitochondrie, brain tumors, mitochondrias, borocaptate (BSH), nucleus, neutron capture therapy (NCT), 14, and 612
Language:
English
Description:
The transformed C6 glial cells in cultures were treated with sodium mercaptoborate (Na2B12H11SH, BSH), a carrier of atomic targets (10B) of thermal neutrons for the neutron capture therapy of brain tumors. As shown by light microscopy, the therapeutic dose of BSH (100 µg/ml) did not alter the gross morphology and growth of the population of cells within a 72 h treatment interval. Electron microscopic analysis of these cells revealed activation of nucleoli and, occasionally, enlarged and bifurcated mitochondria. After 200 µg BSH/ml and 72 h treatment, growth of the cell population was inhibited and ultrastructural changes became more profound. They included condensation of chromatin and its allocation to the nuclear envelope which formed deeper invaginations. Mitochondria further increased in size and were characterized by slim or angular cristae. Moreover, in circumscribed segments of some of the slightly swollen mitochondria their cristae disappeared or were reduced to fine pouch-like structures localized near the continuous outer membrane, suggestive for a non-destructive restructuring of the inner mitochondrial membrane. The smooth pinocytotic vesicles near the plasma membrane, lysosomes and heterogeneous dense bodies were more frequent. The revealed subcellular targets of BSH may initiate the development of pharmacological protocols aimed to further improve the tolerance to BSH by the healthy tissues of patients undergoing BNCT of brain tumors, e.g. by intervention into the oxidative stress triggered likely by the altered mitochondria., V. Mareš, D. Krajčí, V. Lisá., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

68688. The subjective job scheduler with a satisfying criterion based on backpropagation neural network

Creator:
Gopalakrishnan, Anilkumar Kothalil
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Greedy task alignment procedure, subjective criteria, satisfying criterion, convergence test, job validity test, and cost evaluation
Language:
English
Description:
This paper aims to present and discuss the concept of a subjective job scheduler with a satisfying criterion based on a Backpropagation Neural Network (BPNN) and a greedy task alignment procedure. The BPNN is to assign priorities to the tasks of each job based on the given subjective criteria. The subjective criteria and the task alignment procedure depend on the solution plan towards a given job scheduling problem depending on the user's need. When the scheduler is provided with a desired job selection criteria and task alignment procedure for the problem, it generates user satisfying solutions for a set of jobs. The satisfying criterion of the scheduler determines the user satisfaction based on three measures: convergence test of the BPNN, validity of the input job set and cost evaluation of the solutions. The simulations and comparisons presented in this paper indicate that the proposed approach is one of the most effective strategies of structuring a subjective functional job scheduler.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

68689. The substrate utilization and concentration of 14C photosynthates in citronella under Fe deficiency

Creator:
Srivastava, N. K., Misra, A., and Sharma, S.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
acetate, amino acids, 14CO2, Cymbopogon winterianus, oil, organic acids, primary and secondary metabolites, sugars, and [U-14C]; [U-14C] saccharose incorporation
Language:
Multiple languages
Description:
Changes in the utilization pattern of primary substrate, viz. [U-14C] acetate, 14CO2 and [U-14C] saccharose, and the contents of 14C fixation products in photosynthetic metabolites (sugars, amino acids, and organic acids) were determined in Fe-deficient citronella in relation to the essential oil accumulation. There was an overall decrease in photosynthetic efficiency of the Fe-deficient plants as evidenced by lower levels of incorporation into the sugar fraction and essential oil after 14CO2 had been supplied. When acetate and saccharose were fed to the Fe-deficient plants, despite a higher incorporation of label into sugars, amino acids, and organic acids, there was a lower incorporation of these metabolites into essential oils than in control plants. Thus, the availability of precursors and the translocation to a site of synthesis/accumulation, severely affected by Fe deficiency, is equally important for the essential oil biosynthesis in citronella. and N. K. Srivastava, A. Misra, S. Sharma.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

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