bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analýza Kontinuálního Měření Osvětlenosti V Areálu Všb - Tu Ostrava/ Analysis of the Continual Illumination Measurement in the Area of Vsb-Technical University in Ostrava
Authors: Mikulášek Zdeněk , Gráf Tomáš 
Published: January 2015

Abstract
We present the results of a deep statistical analysis of the continual measurement of the mean illumination at night in the area of VSB-Technical University in Ostrava. The illumination during 509 nights between the years 2006 to 2009 was studied in detail in relation to the characteristics of a particular night. Using a sophisticated linear model applied to the logarithm of the mean night illumination, we determined the dependence of the night illumination on cloudiness, moon phases, and seasons as well as on snow cover. The model is able to predict the night illumination with quasi-random uncertainty of 0.21 dex. This uncertainty can be caused by hardly quantifiable events like rainfall, snowfall, fog or clouds with different albedo. It can also be a consequence of various human activities that may influence the illumination of sky at night
Research of Financing Technological Equipment in Process of Loading and Transportation of Sand and Gravel/ Výzkum Financování Technologických Zařízení V Procesu Nakládání A Dopravy Štěrkopísků
Authors: Kučerová Lucie 
Published: January 2015

Abstract
This paper deals with the issue of financing technology investments. Specifically, it concerns the process of loading and transportation of sand and gravel. The research was conducted through a questionnaire survey. The main objective of this paper is to identify financing sources used for the process of loading and transportation of sand and gravel in selected companies. Another objective was to evaluate whether the selected industrial companies outsource the process of loading and transportation or not. If so, it was then necessary to find out the most common reason for that decision. The issues of financing technological processes in loading and transporting sand and gravel is an interesting area that has not yet been mapped.
Reducing Carbon Dioxide Emissions by Underground Storage in an Abandoned Coal Mine - an Initial Study/ Snižování Emisí Oxidu Uhličitého Ukládáním Do Opuštěných Podzemních Uhelných Dolů - Základní Studie
Authors: Chovanec Josef , Závada Jaroslav , Bouchal Tomáš , Blažek Vladislav , Ožana Kamil 
Published: January 2015

Abstract
This article is a basic study dealing with the issues of underground storage of carbon dioxide generated from different kinds of activities. Carbon dioxide can be stored underground as a free gas; gas dissolved in water, or can be adsorbed in the rock mass and in the remaining seams. The technology for processing and storage of carbon dioxide is known as Carbon Capture & Storage (CCS). The article focuses on the possibility to store CO2 underground at the Paskov Mine in the Czech Republic.
An Analysis of the Use of EU Structural Assistance to Improve the Quality of Business Environment in the Moravia-Silesian Region/ Analýza Využití Strukturální Pomoci Eu Pro Zlepšení Kvality Podnikatelského Prostředí V Moravskoslezském Kraji
Authors: Černý Igor , Rolčíková Markéta , Krčmarská Lucie , Böhm Richard 
Published: January 2015

Abstract
The article deals with business environment in the Moravia-Silesian Region, which is very various, dynamic and complex. It is influenced by many factors, which can have positive or negative impacts on corporations. The objective of the article is to determine the structural assistance from the operational programmes in the programming period 2007 - 2013, which can reinforce the factors influencing this business environment, and this way improve the quality of this environment, and to evaluate mutual relationships among the operational programmes and the factors. The article defines these factors, the structural assistance of the European Union, finds and analyses their mutual relationships.
Analysis of Social and Health Reimbursements for Miners in Tems of the Decline of Mining Activity in the Czech Republic Funded from the State Budget/ Analýza Sociálně Zdravotních Náhrad Horníkům V Souvislosti S Útlumem Hornické Činnosti V Čr Financovaných Ze Státního Rozpočtu
Authors: Magnusková Jana , Bartoňová Jana , Krčmarská Lucie , Létavková Dagmar 
Published: January 2015

Abstrakt
The present article deals with the area of social and health welfare of former and current employees of the abolished, privatized or otherwise affected by reorganization mining enterprises in connection with the decline of uranium, ore and coal mining industry in the country. It describes a thorough analysis of the legislation governing the given area from the start of the decline in mining activity in 1990 to the present. Subsequently, relying on real data from practice, the article shows elaborated overviews of trends in the number of beneficiaries of all kinds of provided mandatory and decline-based social and health reimbursements in the years 2001-2012, including the total cost financed in a form of subsidies from the state budget. The forecast of trends of these monitored indicators, processed by the age of beneficiaries of compensations, type of work and other practice-verifiable data, suggests a sharp reduction in the number of recipients of mandatory compensations in the year 2015, the complete termination of payment of a special health benefit for miners by 2025, compensations of accidents at work, occupational diseases and allotments of coal and wood by the year 2035. The payment of the special benefit to miners, a claim for which occurred after 31 December 1992, will have finished by the year 2040.
Geodetic Determining of Stockpile Volume of Mineral Excavated in Open Pit Mine/ Geodetické Určenie Objemu Vyťažiteľných Zásob Nerastu V Povrchovom Lome
Authors: Labant Slavomír , Staňková Hana , Weiss Roland 
Published: January 2015

Abstract
In the contemporary geodetic practice it is practically a must to use modern geodetic apparatuses and a variety of the CAD (Computer Aided Design) software for processing and visualising spatial data. The present paper deals with geodetic surveying of Kecerovce open pit mine to determine, for the purpose of mine reopening and commencing with mining of andesite, the volume of non-extracted volumes of andesite. The open pit mine is situated on the foot of Slanské vrchy mountain range. Determining of the auxiliary survey control points and the quarry vicinity was performed by GNSS technology and RTK method. Detailed surveying of the open pit mine was performed through an electronic total station. By measurements attained spatial data were processed by pertinent proprietary software. Subsequently, the determined spatial coordinated were imported into the graphiccalculating softwares for further processing and visualisation. These graphical-calculating applications make possible not only 3D modelling and visualising of surfaces but also their analysing, especially then determining the volumetric data that represent various aspects necessary to assess as activities within the related branches so possible future development.
Estimation of Avalanche Hazard in the Settlement of Magurka using Elba+ Model / Posúdenie Ohrozenosti Osady Magurky Lavínami S Použitím Modelu Elba+
Authors: Bartík Martin , Hríbik Matúš , Hanzelová Miriam , Škvarenina Jaroslav 
Published: January 2015

Abstract
In our study we focused on advanced software applications to allow simulation of an avalanche. We used the model ELBA+, by which we tried to assess the vulnerability of mountain environments around the old mining settlement called Magurka (1036 m a.s.l.), which lies below the main ridge of Low Tatras at the end of Ľupčianská valley. The avalanche in the Ďurková valley released on 14th March 1970 went down in history because it is still one of the largest avalanches recorded in Slovakia. Using archived data of the Avalanche Prevention Centre in Jasná, we tried its most faithful reconstruction. Then we tried to simulate an avalanche in the Viedenka valley using the same amount of snow in the release zone as it was supposed to be in 1970. Because a part of the Magurka settlement is situated at the mouth of this valley, which has more direct and shorter terrain than the valley of Ďurková, we examined the possibility of intervention by the avalanche.
Geographic Information Systems in Developing Countries – What are the Ethical Issues we need to be aware of ? / Geografické Informační Systémy A Jejich Využití V Rozvojových Zemích - Jakým Etickým Otázkám Musíme Čelit?
Authors: Pánek Jiří 
Published: January 2015

Abstract
The use of GIS in developing countries has been coined as an oxymoron for several reasons, but mainly due to the fact that the historical burden of maps is to have been used as a tool of control and technological dominance. Participatory approaches in mapping and GIS allow to bring a greater degree of social responsibility and ethics in research and visualisation of local spatial knowledge. The article focuses on the description of selected reasons that led to the sceptical attitude towards GIS, and to identify the basic ethical issues of collection and interpretation of spatial information in developing countries on an example of mapping water resources in the village Koffiekraal in South Africa.
The First Test of the New Neutron Generator at the Všb / Technical University of Ostrava První Test Nového Neutronového Generátoru Na Všb-Tu Ostrava
Authors: Alexa Petr , Uhlář Radim 
Published: January 2015

Abstract
The compact neutron generator MP320 (Thermo Scientific Inc.) operating on the principle of a deuterium-tritium reaction was tested before its planned application as the neutron source for the purpose of Fast Neutron Activation Analysis applications. Plates made from Al, Fe, Sn and Si were irradiated by a 14 MeV neutron beam and typical neutron induced reactions were identified.
Application of Gpr During Investigation Concerning Causes of Pavement Failure and Road Subgrade Quality in Granitoid Massif Near Simtany / Využití Gpr Pro Průzkum Příčin Porušení Vozovky A Podloží Silnice V Prostředí Granitoidního Masivu U Simtan
Authors: Kovář Luděk , Pospíšil Pavel 
Published: January 2015

Abstract
The survey of damaged engineering buildings is in many cases very demanding in terms of the selection of a right exploration method in relation to the results obtained for subsequent engineering works, time for survey implementation, and violations arising from survey activities. Heterogeneity of materials of a natural and anthropogenic origin is a fundamental axiom which can subsequently lead to either a distortion or a failure threatening statically the existence of a building structure. On the test object of a pavement, after some time of its use, severe deformations became evident whose causes and future evolution were not known. Within the design of survey techniques being able to quickly and efficiently uncover the causes of failures, the GPR (Ground Penetrating Radar) investigation was included which as an indirect, non-destructive survey method very quickly helped to clarify he causes of failures of the building structure.
Changes in Mollusc Species Composition in the Mining Landscape on the Exemple of the Extinct Pond System Territory / Změny V Druhovém Složení Měkkýšů V Hornické Krajině Na Příkladu Území Zaniklého Rybničního Systému
Authors: Kupka Jiří , Švehláková Hana , Kašovská Kamila 
Published: January 2015

Abstract
The development of the industry in last two centuries, and especially intensive coal mining activities definitely changed the local landscape character. It led to the destruction of indigenous biotopes with natural flora and fauna communities. Many ecological studies use a group of molluscs as indicators of changes in the landscape. The advantage of this group is a relatively small number of taxa, relatively simple determination and very good knowledge of ecological requirements and distribution of individual species. The territory of Loucké ponds represents an interesting area in the industrial landscape of Karvinsko, where based on the above aspects of malacocenosis, it is possible to use and compare historical data of their incidence as well as to compare the data with current research. The pond system affected by the declension has an important function in the landscape today. The first malacological researches in the Loucké ponds territory were conducted in 1954 and 1955 (Brabenec, 1954, Ložek, 1964). Detailed survey was conducted by Macha (1978, 1979) who found 29 aquatic species (12 Bivalvia and 17 Gastropoda) and 19 land species of molluscs. This research was followed by the authors' survey in 2006, 2007 and 2013 which confirmed the presence of 48 molluscs species altogether (42 Gastropoda and 6 Bivalvia), from which 21 species were aquatic molluscs and 27 species were land molluscs.
Occupational Competence for Improving Industrial Enterprise Competitive Standards / Profesní Kompetence Pro Zlepšení Konkurenčních Standardů Průmyslového Podniku
Authors: Krčmarská Lucie , Černý Igor , Vaněk Michal 
Published: January 2015

Abstract
Success of enterprises is usually measured by their achievements. This success results from the competence of people working for the company. The employee competence can be understood as the sum of their actual performance and their latent abilities. Both is essential and provides for the competence completeness. Missing or inadequate occupational competences cause problems in running industrial enterprises, and thus a continuous improvement process of competence levels is a must. If a company is aware of the importance of people competences in relation to success or failures and strives to develop them, it is able not only solve current problems, but also remove causes of future problem incidences. This paper focuses on the assessment of the occupational competences and competence models as an important tool in the management of human resources.
Research On Petrophysical Properties Of Chosen Samples From The Point Of View Of Possible CO2 Sequestration / Výzkum Kolektorských Vlastností Vybraných Horninových Vzorků Z Hlediska Možné Geosekvestrace CO2
Authors: Klempa Martin , Porzer Michal , Bujok Petr , Pavluš Ján 
Published: January 2015

Abstract
Man-made CO2 emissions (the so called anthropogenic CO2 emissions) and their increasing trend can be, by some scientists, considered a serious menace for the sustainable development of mankind, and their reduction a prerequisite for the environment protection. Carbon dioxide is one of the most important gases that cause a greenhouse effect which warms up the earth surface as a consequence of a different heat flow between the earth and the atmosphere. Our laboratory measurements determined the porosity, permeability and grain density for clastic sedimentary rock samples which were drilled from an underground gas storage facility. Additionally, our results showed a reduction in porosity and permeability after a confining pressure was applied. We assume that this effect is caused by internal structure changes due to the repeatedly increased and decreased net pressure applied to the samples
Effect Of Chemical Activation On Sorption Characteristics Of Selected Wood Samples / Vliv Chemické Aktivace Na Sorpční Charakteristiky Uhlíkatých Materiálů
Authors: Smatanová Nikola , Koutník Ivan , Večeř Marek 
Published: January 2015

Abstract
Two samples of hardwood, beech and a mixture of beech and oak were pyrolyzed by continuous chemical activation with K2CO3. Two final temperatures were tested on activated samples (550 °C, 750 °C). In the same temperature regime, also non-activated original samples were pyrolyzed. The sorption for carbonaceous material was measured with a high-pressure thermal analyzer (TGA-HP50) in the presence of nitrogen and the carbon dioxide atmosphere in the range of pressure from 0,03 to 4,5 MPa, respectively from 0,03 to 2 MPa. The sorption experiments were carried out at three different temperatures - 20, 30 a 40 °C. The tests indicate that the final temperature of activation and sorption conditions (pressure, temperature) have significant impact on sorption properties of material
Evaluation Of Surfactant Performance For Enhanced Oil Recovery / Posouzení Vhodnosti Aplikace Povrchově Aktivních Látek (Pal) Pro Potřeby Zvýšení Vytěžitelnosti Ložisek Uhlovodíků
Authors: Porzer Michal , Bujok Petr , Klempa Martin , Pánek Petr 
Published: January 2015

Abstract
This paper focuses on the field of enhanced oil recovery by means of a chemical flooding of oil deposit especially a surfactant flooding method. The main objective is the application of the aforementioned method at the Czech oil deposit Ždánice - Miocene which bears the crude oil of significant viscosity and gravity that does not allow conventional production methods to be used. We evaluated the performance of various surfactants in the laboratory environment by simulating oil recovery processes
Functional traits of selected clones of southern sweet-grass (Hierochloë australis /Schrad./ Roem. & Schult.)
Authors: Bączek Katarzyna , Angielczyk Mirosław , Przybył Jarosław L. , Ejdys Marcin , Geszprych Anna , Węglarz Zenon 
Published: January 2015

Summary
Southern sweet-grass (Hierochloë australis /Schrad./ Roem. & Schult., Poaceae), commonly known as a bison grass, is a perennial tuft grass rarely occurring in mixed forests in Eastern and Northern Europe. The raw material collected from this plant are leaves rich in coumarin compounds (especially coumarin) responsible for sweet, specific aroma of these organs. In Poland, southern sweet-grass leaves are used mainly for alcohol products aromatisation. Growing demand for the raw material results in uncontrolled and excessive collecting of this plant. The best way to solve this problem is to introduce this plant into cultivation. Since southern sweet-grass is allogamous and heterozigotic, strong intraspecific variability of the species is observed. Fourteen clones of selected individuals from one population of southern sweet-grass naturally occurring in East Poland were compared in respect of morphological traits as well as accumulation of biologically active compounds. The clones differed significantly in the weight of leaves (3.76-22.59 g of air-dry weight per plant). The total coumarin content (determined by a spectrophotometric method) in this raw material for investigated clones ranged from 1.49 to 1.94%, flavonoids - from 0.25 to 0.55%, and phenolic acids - from 0.20 to 0.42%. Three coumarin compounds were identified by HPLC, namely coumarin, 3,4-dihydrocoumarin, and o-coumaric acid. The content of coumarin ranged from 84.00 to 310.85, 3,4-dihydrocoumarin: from 17.80 to 168.45, and o-coumaric acid: from 37.50 to 70.00 mg · 100 g-1 dry matter.
Diversity of Eleutherococcus genus in respect of biologically active compounds accumulation
Authors: Bączek Katarzyna 
Published: January 2015

Summary
Eight species of Eleutherococcus genus grown at Rogów Arboretum collection were compared in respect of biologically active compounds accumulation, i.e. eleutheroside B and E, phenolic acids and sterols. For the determination of content of these compounds in underground organs and stem bark high performance liquid chromatography was applied. The highest content of the sum of eleutherosides B and E was observed in underground organs and stem bark of E. leucorrhizus (322.0 and 300.8 mg × 100 g-1, respectively) and E. nodiflorus (218.9 and 363.5 mg × 100g-1, respectively). In the raw materials from E. senticosus, the content of these compounds was significantly lower (177.4 and 159.3 mg × 100 g-1, respectively). E divaricatus and E. setchuenensis were characterized by the lowest accumulation of these compounds in underground organs whereas E. divaricatus, E. sessiliflorus and E. giraldii - in stem bark. Four phenolic acids were identified in the investigated species, namely: chlorogenic, rosmarinic, ferulic and caffeic acids. The main phenolic acid in the analyzed species was chlorogenic acid. The content of this compound in underground organs varied from 102.1 (E. henryi) to 958.7 mg × 100 g-1 (E. leucorrhizus) and in stem bark from 26.7 (E. giraldii) to 542.5 mg × 100 g-1 (E. setchuenensis). The content of identified sterol compounds (sitosterol 3-O-β-D-glucoside /eleutheroside A / campesterol, stigmasterol) was relatively low, but higher in underground organs in comparison with stem bark.
Accumulation of biomass and phenolic compounds in Polish and Mongolian great burnet (Sanguisorba officinalis L.) populations
Authors: Bączek Katarzyna 
Published: January 2015

Summary
Eight Polish and six Mongolian great burnet populations were evaluated ex situ in respect of the mass of underground organs and accumulation of biologically active compounds. In the raw materials collected in autumn of the second year of plant vegetation, total content of tannins and phenolic acids as well as the content of phenolic compounds identified by HPLC were determined. Distinct differences between Polish and Mongolian populations and their high intraspecific variability, concerning analysed parameters, was observed. The mass of underground organs of Polish populations was higher than in Mongolian ones (595.0 and 523.5 g × plant-1, respectively, for fresh mass). Polish populations were characterised by significantly higher total content of tannins and phenolic acids (6.02 and 1.60%, respectively) in comparison with Mongolian ones (2.89 and 0.97%, respectively). In the investigated raw materials eight phenolic compounds were identified, namely: /-/-epigallocatechin, /+/-catechin, /-/-epicatechin, /-/-epicatechin gallate, /-/-epigallocatechin gallate, astragalin, ellagic and gallic acids. In all populations, the dominating compound, was /-/-epigallocatechin. The contents of /-/-epigallocatechin, /-/-epicatechin gallate and gallic acid were distinctly higher in Polish populations.
Influence of cadmium on protein profile of flax varieties (Linum usitatissimum L.)
Authors: Szalata Milena , Wróbel Tomasz , Luwańska Aleksandra , Szalata Marlena , Wielgus Karolina 
Published: January 2015

Summary
The aim of the study was the evaluation of the influence of cadmium on protein profile of flax varieties (Linum usitatissimum L.). Linola and Norlin explants were cultured on control medium Dorothy and with addition of 25 and 75 mg/l Cd(NO3)2. Extracts were separated on DEAE-Cellulose (20 mM Tris-HCl buffer, 0.2-1 M NaCl). Protein content was evaluated by measuring the absorbance at wavelengths 280 and 254 nm. Linola was characterized by proteins occurrence in fractions eluted by 0.4 and 0.6 M NaCl at 25 mg/l of Cd(NO3)2, at 75 mg/l and additionally by 0.3 M NaCl. Norlin showed response in the form of proteins appeared at 0.2, 0.4, 0.5 and 0.6 M NaCl gradient at 25 mg/l of cadmium, at higher concentration in fractions eluted by 0.2, 0.5 and 0.6 M NaCl. Electrophoretic analysis showed an increase in the protein bands intensity above 60 kDa and under 52 kDa in extracts from flax cultivated with Cd(NO3)2. Studies showed appearance of new proteins during stress condition.