Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2016 (vol. 64), issue 3
The Investigation of Citrus Fruit Quality. Popular Characteristic and Breeding
Abouzar Abouzari, Nafiseh Mahdi Nezhad
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 725-740 | DOI: 10.11118/actaun201664030725 
Citrus is the most economically important fruit crop in the world. In citrus, the concept of fruit quality comprises several other aspects intimately related to human health apart from physical attributes and diet components. Citrus is an excellent model to study fruit quality because of its peculiar fruiting, singular biochemistry and economical relevance. A citrus breeding programme starts with the selection of suitable parents and the planning of controlled crosses. Information on the breeding value of available parents and the heritability of specific characters is important in a plant breeding programme to aid the breeder in parent selection and...
Evaluating the Effects of Municipal Waste and Wastewater on Absorption of Nickel and Cadmium of Helianthus Annuus Plant
Amirhossein Ashouri, Bahareh Sadhezari
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 741-749 | DOI: 10.11118/actaun201664030741
The present study is an attempt to examine the effects of municipal waste and wastewater on absorption of nickel and cadmium of helianthus annuus plant. In order to determine cadmium and nickel in different organs of the plant in soil with organic fertilizers of municipal waste and municipal sewage sludge, we conducted a split plot study. The study was in form of randomized complete block from 2011 to 2015 under farm conditions. We considered the main factor in five levels of control, 10 and 20 tons of sewage sludge and municipal waste compost per hectare besides the minor factor of yearly treatment during four years. The results showed that using...
Testing of Macroscopic Hardness by Acoustic Response
Michal Černý, Michal Šustr, Petr Dostál
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 751-758 | DOI: 10.11118/actaun201664030751
Static measurement of macroscopic hardness (hereinafter macrohardness) of metal materials by using indentation testing is accompanied by deformation in the vicinity of the indenter. Its indenting in a material, monitoring of consequent acoustic response during plastic deformation and interconnection with the records of acoustic emission (hereinafter AE) is the aim of this submitted paper. This non-destructive testing (NDT) method concentrates on the comparison of an acoustic event and the result of the hardness measurement of steels with different hardness values and for a specimen made from steel and tungsten carbide. The aforementioned measurements...
Effects of Land Use Changes on the Runoff in the Landscape Based on Hydrological Simulation in HEC-HMS and HEC-RAS Using Different Elevation Data
Josef Divín, Tomáš Mikita
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 759-768 | DOI: 10.11118/actaun201664030759
The aim of this paper is to determine the effects of land use changes on the runoff in the landscape by means of hydrological modelling. Our partial aim is also to determine the effect of different elevation data and define optimal data sources for this modelling. The research was conducted on the Starozuberský stream experimental watershed.For comparing elevation models, three scenarios were developed with different input data. Based on a comparison of these models an optimal data source for hydrological modelling was selected. To simulate the change in land use, we have created two scenarios based either upon the current land use and historical...
The Effect of Genotype (Purebred Czech Fleckvieh and Their Crosses) on Some Beef Quality Characteristics in Bulls
Eliška Dračková, Radek Filipčík, Jan Šubrt
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 769-773 | DOI: 10.11118/actaun201664030769
The aim of this study was to determine the effect of genotype of bulls (the proportion of Czech Fleckvieh cattle in milk-producing cattle population in the Czech Republic) on carcass quality traits and some nutritional and processing quality characteristics of beef (dry matter content, intramuscular fat content, protein content, ash content, water holding capacity, muscle fibre diameter, and meat colour characteristics). The experiment included 419 bulls of Czech Fleckvieh breed (C), out of which 165 were pure-bred (C100), 163 crossbred of C76-88 genotype and 91 crossbred of C50-75 genotype. The association between...
Vacuum Fluctuation in a 2×3 Tandem Milking Plant in Dependence on the Vacuum Control Method
Jiří Fryč, Josef Los, Radovan Kukla, Tomáš Lošák, Kristina Somerlíková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 775-779 | DOI: 10.11118/actaun201664030775
Vacuum fluctuation was measured using three different vacuum control methods. Firstly, the use was made of a control valve delivered by the manufacturer; then, an additionally installed frequency converter was used. Lastly, a frequency converter fitted with the stabilisation device prototype was used. First, the control sensitivity according to ISO was measured in all three alternatives. Then the vacuum fluctuation during milking was measured. To conduct the measurements under objectively identified conditions, another measurement was conducted with the air feed during milking being replaced with a precisely defined variable flow rate.The conducted...
Laboratory Investigation of the Effect of the Size of Orifice on the Performance of Curvature Submerge Vanes for Sediment Leaching of the Vortex Settling Basin's Floor
Amin Hajiahmadi, Mohammad J. Khanjani, Mojtaba Saneie, Mehdi Azhdari Moghaddam
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 781-789 | DOI: 10.11118/actaun201664030781
In this paper, considering the accumulation of the sediments on the floor of the vortex settling basin during sediment extracting, curvature submerge vanes were used on the floor of the vortex basin and the effect of the size of the orifice was studied on the performance of the curvature submerge vanes for sediment leaching of the floor of the basin. Experiments were performed on a physical model with a height of 90 cm and a diameter of 206 cm and a floor slope of 10% and also three orifices were used with diameters of 59, 46 and 36 mm. The submerge vanes were placed in different arrangements and different radial sections. The results of the experiments...
Development to Ensure of the Result Reliability of Production Indicators in the Milk Recording During its Computerization
Pavel Hering, Pavel Kopunecz, Oto Hanuš, Martin Tomáška, Marcela Klimešová, Radoslava Jedelská, Jaroslav Kopecký
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 791-801 | DOI: 10.11118/actaun201664030791
Milk recording (MR) is an essential breeder measure. Results are important for inheritance check. The occurrence of errors in the data may compromise the efficiency of breeding of dairy cows. The aim was possibility to reduce the incidence of MR database errors. Analyses of frequency distribution of MR data deviations from different sources and estimations of limits of difference acceptability in milk recording were performed. The results of MR control days of flowmeter in parlor (DMY) were paired to the AVG7 results (average for 7 days) from the same flowmeter (n = 16,247, original recordings of complete lactations). The individual differences in...
Fermented Dough Characteristics of Wheat-barley-hemp Composites. Comparison of Two Dosages of Barley and Hemp Wholemeal/Flour
Marie Hrušková, Ivan Švec
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 803-812 | DOI: 10.11118/actaun201664030803
Wheat flour substitution by barley one led to shortening of fermentation and leavening times (about 14-57% and 35-83%, respectively) as well as to lessening of dough volumes (about 25-75%), based on lowered protein quality (Zeleny value). Addition of barley flour affected specific bread volume; diminishing for wheat-barley blends 70:30 and 50:50 reached 30% and 43%, respectively. Volume of bread prepared from wheat-barley blend 70:30 enhanced by dehulled hemp wholemeal was the highest within the tested tri-composites set, achieving 130% of wheat-barley control; other hemp products caused the parameter decrease (from 8 to 33%). Within a group of bakery...
The Importance of Cultivated Plants in the Diet of Red and Roe Deer and Mouflon
Jiří Kamler, Miloslav Homolka
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 813-819 | DOI: 10.11118/actaun201664030813
The botanical composition of red and roe deer and mouflon diet was studied in the mosaic landscape in Drahanská vrchovina highlands, Czech Republic. We focused on the proportion and quality of agricultural crops and natural forest plants and estimated quality of the herbivore diet. Diet quality was monitored by the near infrared reflectance spectroscopy on the basis of nutritional quality of diet items. Red deer, roe deer and mouflon ingested all cultivated plants growing close to forest. However, the proportion of cultivated plants varied between seasons and herbivore species. The peak of crops consumption occurred in summer - when cereals spikes...
Effect of Genotype on Growth and Basic Carcass Characteristics in Male Lambs
Svatava Koutná, Jan Kuchtík, Radek Filipčík
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 821-824 | DOI: 10.11118/actaun201664030821
The aim of the study was to evaluate the effect of a genotype on growth and basic carcass characteristics in male lambs. The experiment was carried out at an organic farm in Proseč and four different genotypes were included in the experiment: Šumavská sheep (S) 100, n = 8; S 50 Texel (T) 50, n = 11; T 75 S 25, n = 13 and S 75 T 25, n = 11. The genotype had no significant effect on most of the monitored growth parameters. The highest daily gain (DG) in the interval from birth to 100 days of age was found out in S 75 T 25 (327 g) but the highest DG from birth until the end of the experiment was found in S 50 T 50 (199 g). By contrast, the lowest DGs...
Analysis of the Effect of Loading Process on Tribological System Properties
Radoslav Majdan, Rudolf Abrahám, Marián Kučera, Peter Haas
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 825-833 | DOI: 10.11118/actaun201664030825
The effect of loading on the properties of selected sliding pair is monitored and analysed in the submitted contribution. The obtained results of dynamic loading were also compared with static loading. The experimental tests were performed using the testing machine Tribotestor M10. Steel 11 600 was selected as a material sample for the shaft as it belongs to commonly used materials in the manufacturing of agricultural components of shaft type or pin type. A full-bronze centrifugally moulded bearing shell from the material CuSn12 was selected as the second element of friction pair. Two oils were selected for lubrication of friction node - the mineral...
Protective Woodcutting Tool Coatings
Svetlana D. Latushkina, Pavel V. Rudak, Dmitri V. Kuis, Oxana G. Rudak, Olga I. Posylkina, Olga Y. Piskunova, Ján Kováč, Jozef Krilek, Štefan Barcík
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 835-839 | DOI: 10.11118/actaun201664030835
The modern woodworking industry applies resource-saving, environmentally appropriate technologies, providing both the metal removal performance enhancement and functioning with the optimal economic factors. Progressive cutting parameters require the application of the high-reliability cutting tools, eliminating machine-tool equipment standstill and increased cost of the expensive tool materials. In this paper it is suggested to increase the wood-cutting tool efficiency by means of the vacuum-arc separated coating deposition process optimization.The droplets are one of the main problems while generating vacuum-arc coatings, and they have a bad influence...
The Possibilities of Using Marc for Manufacturing Pellets for Energy Purposes
David Ludín, Patrik Burg, Anna Krakowiak-Bal, Vladimir Višacki
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 841-846 | DOI: 10.11118/actaun201664030841
The contribution describe the possibilities of using marc for manufacturing pellets for energy purposes. Experiments associated with pellet production were performed in several variants. Biomass pellet variants consisted of different percentages of vine shoots from vineyards, as well as marc and hay. These test variants were measured for their calorific value, which ranged between 17.36 and 19.21 MJ.kg-1. Bulk density was also determined, ranging between 619.27 and 630.9 kg.m-3. Pellets produced with marc content were also tested for mechanical durability, which was between 96.15 and 96.82% for the test variants. The calorific...
Optimization of the Municipal Waste Collection Route Based on the Method of the Minimum Pairing
Michal Petřík, Stanislav Bartoň
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 847-854 | DOI: 10.11118/actaun201664030847
In the present article is shown the use of Maple program for processing of data describing the position of municipal waste sources and topology of collecting area. The data are further processed through the use of graph theory algorithms, which enable creation of collection round proposal.In this case study is described method of waste pick-up solution in a certain village of approx. 1,600 inhabitants and built-up area of approx. 30 hectares. Village has approx. 11.5 kilometers of ride able routes, with approx. 1 kilometer without waste source. The first part shows topology of the village in light of location of waste sources and capacity of the...
Improving the Machining Process by Analysing the Relationship Between Cutting Force and Temperature in Drilling of Engineering Steels
Pavel Polák, Zuzana Poláková, Ján Žitňanský, Petr Dostál, Katarína Kollárová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 855-861 | DOI: 10.11118/actaun201664030855
This paper describes the experiment of measuring the temperature and cutting force during the drilling of short holes without using cutting lubricants, at constant cutting speed, and at increasing shift. Measurement was performed on steel samples of grade 11 523. During drilling, temperature was monitored by a thermocouple, using the method of two foreign metals. Cutting force was measured by a strain-gauge sensor. The experiment provides a quick orientation in the given issue and points out to the optimisation of cutting conditions. Based on results, it can be stated that the range of temperatures and the size of cutting forces depends on technological...
Alcohol Fuel in Passenger Car
Adam Polcar, Vojtěch Kumbár, Jiří Čupera
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 863-869 | DOI: 10.11118/actaun201664030863
The present article studies the effects of combustion of high-percentage mixture of bioethanol and gasoline on the output parameters of a passenger car engine. The car engine has not been structurally modified for the combustion of fuels with higher ethanol content. The mixture used consisted of E85 summer blend and Natural 95 gasoline in a ratio of 50:50. The parameters monitored during the experiment included the air-fuel ratio in exhaust gasses, the power output and torque of the engine and also the specific energy consumption and efficiency of the engine. As is apparent from the results, E85+N95 (50:50) mixture combustion results in lean-burn (λ...
Harmfulness of Delia antiqua (Diptera: Anthomyiidae) in Garlic in Southeast and Central Moravia
Eva Sapáková, Hana Šefrová, Lea Hasíková, Luděk Hřivna
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 871-876 | DOI: 10.11118/actaun201664030871
The aim of the three year research was to determine the first occurrence of Delia antiqua (Meigen, 1826) (Diptera: Anthomyiidae), specify its bionomics, compare its harmfulness on different garlic varieties, find out the effect of temperature on their life cycle and how their abundance influences garlic yield in regional agriculture areas traditionally growing garlic such as southeast and central Moravia. There was a significantly higher infestation of Delia antiqua on the edge (32.3 larvae) of study plot than in the middle (16.3 larvae) from 2010 to 2012. Intensive laying eggs of D. antiqua takes place between 9-11 a.m. and 16-18...
Evaluation of Changes in Soil Compaction Due to the Passage of Combine Harvester
Martin Svoboda, Marek Brennensthul, Jiří Pospíšil
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 877-882 | DOI: 10.11118/actaun201664030877
This paper concerns the results of changes in soil compaction after the passages of combine harvester. The research was done on the maize-stubble; the soil was the mold formed in the sand. The measured parameter was a penetration of resistance in range of depth 0-60 cm. The measurements were done in the ruts after the passages the front and rear wheel of combine harvester. During the experiment two levels of vertical load of wheels were applied - these levels were dependent on filling of grain tank of harvester. Moreover, the influence of the lateral tilt of harvester on the soil compaction was analyzed (the harvester was equipped with the leveling...
Nutritive Value and Mycotoxin Contamination of Herbage in Mountain Locality Exposed to Renewed Cattle Grazing
Marie Štýbnarová, Ludmila Křížová, Stanislav Pavlok, Pavlína Mičová, Oldřich Látal, Jan Pozdíšek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 883-891 | DOI: 10.11118/actaun201664030883
The aim of the study was to estimate the forage quality and mycotoxin contamination in the locality of Švýcárna (1304 m a.s.l.), where the cattle grazing after the long-term management cessation was introduced on the pasture area of 3.6 ha in 2012. The pasture was divided into two grazing plots: P1 (Nar) (dominance of Nardus stricta) and P2 (Des) (dominance of Deschampsia cespitosa). Samples of forage were taken in June, July, August and September 2014 and 2015 from five permanent plots situated in different places of locality. Samples were analysed on the content of basic nutrients and macro- and micro-elements. Further, the content...
Experimental Comparison of the Tribological Properties of Selected Surfaces Created by Thermal Spraying Technology
František Tóth, Peter Haas, Juraj Rusnák, Milan Kadnár
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 893-899 | DOI: 10.11118/actaun201664030893
The scientific article titled "Experimental comparison of the tribological properties of selected surfaces created by thermal spraying technology" deals with the surface condition of selected pairs working within the mixed friction before and after experimental tests. Based on the chosen methodology, the experimental tests were performed on the Tribotestor M'06 testing machine. The ecological oil MOGUL HEES 46 (manufactured by Paramo) was used as a lubricant. The tests were performed on selected material pairs. The first friction element was a shaft of steel 14 220. The second friction element was a steel plate of steel 11 373 with a friction surface...
Comparison of Maize Silage-based Diets for Dairy Cows Containing Extruded Rapeseed Cake or Extruded Full-fat Soybean as Major Protein Sources
Jiří Třináctý, Michal Richter, Ludmila Křížová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 901-909 | DOI: 10.11118/actaun201664030901
The trial was carried out on four Holstein cows with initial milk yield of 27.3 ± 1.7 kg.day-1. Cows were divided into two groups - the first was fed a diet based on extruded rapeseed cake (D-ERC), the second one was fed a diet based on extruded full-fat soybean (D-EFFS), both diets contained maize silage and meadow hay. The experiment was divided into 4 periods of 42 days. Intake of dry matter, crude protein and NEL was not affected by the treatment (P > 0.05) while the intake of PDIA, PDIN and PDIE was lower in D-ERC than in D-EFFS (P < 0.05). Milk yield in D-ERC (22.6 kg.d-1) was lower than in D-EFFS (24.7 kg.d-1,...
The Influence of Common-rail Adjustment on the Parameters of a Diesel Tractor Engine
Lukáš Tunka, Adam Polcar
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 911-918 | DOI: 10.11118/actaun201664030911
The article deals with the issue of high-pressure indication of a diesel tractor engine Z 1727, which was fitted with a modern electronically controlled common-rail injection system. The aim of the study is to evaluate the influence of the adjustment of the fuel system - start of injection (SOI) timings and the rail pressure (PRAIL) - on the pressure development in the cylinder (PCYL), the heat release (HR) and the combustion noise level (CNLA). Furthermore, the article examines the influence of pilot and post fuel injections on the CNLA. The experiments were conducted at constant speed (1480 rpm) with four PRAILs and different SOI timings. As the...
Evaluation of Selected Basic Soil Properties at the James Ross Island (Antarctica)
Vítězslav Vlček
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 919-926 | DOI: 10.11118/actaun201664030919
This study attempts to summarize the basic soil properties of the selected places in the deglaciated areas on the James Ross Island (Antarctica). James Ross Island is a large island near the north-eastern extremity of the Antarctic Peninsula, from which it is separated by the Prince Gustav Channel. The island is approximately 2,600 km2 large and is covered in 80% of its surface by a glacier. Deglaciated areas cover relatively young soils developing after the parent substrate was deglaciated, but they still have a greatly varying character (fluvial, glacial, volcanic, possibly also aeolian). We determined in a separated fraction of fine earth...
The Influence of Market Concentration on the Development of Newly Born Businesses in the Czech Republic
Ivana Blažková, Gabriela Chmelíková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 929-938 | DOI: 10.11118/actaun201664030929
The paper deals with the market concentration as a detractor of life expectancy of new-born economic entities in the Czech economy. Although the start-up firms are small companies, their role in the economy exceeds their size, they are seen as providing the energy for economic growth. The aim of the paper is to evaluate the influence of different levels of market concentration on the business lifespan and consequently the job destruction in the economy. The analysis has shown that the greatest decline of start-up firms comes during the first and second year and that only around 30% of them get to their sixth year. From the viewpoint of the job creation...
The Budgetary Process with a Use of Modern Approaches in Cost Management
Jiří Hammer
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 939-947 | DOI: 10.11118/actaun201664030939
State organisational units still compile their budget as incremental and as such it therefore disregards causes of the origination of costs and does not put a sufficient pressure on increase in efficiency of economy. This article aims to propose a budgetary setup for operating costs using the methods of ABC/ABM (Activity Based Costing/Activity Based Management) in state organisational units (SOU). Essence of the proposed procedure towards budgetary setup as well as cost management is specification of such cost drivers that reflect the causal link between activities of the given organisation and indirect operating costs. Through a system of linear equations...
Optimizing Risk Structure in Connection with the Corporate Life Cycle and Sector Cyclicity
Zdeněk Konečný, Marek Zinecker
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 949-959 | DOI: 10.11118/actaun201664030949
Entrepreneurial activities and thus also investments are connected with two kinds of risks, namely with the operational and financial risk. Both of them are dependent especially on the corporate life cycle and on the sector sensitivity to the economic cycle. The main aim of this article is to propose a methodology supporting managers and investors when estimating the shares of operational and financial risks in the entrepreneurial risk with taking into account the corporate life cycle and the sector sensitivity to the economic cycle. This methodology is subsequently applied in a selected company in the form of a case study and thus their results prove...
The Effect of Changes in Sickness Insurance on Incapacity for Work in Selected Regions of the Czech Republic
Ivana Koštuříková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 961-969 | DOI: 10.11118/actaun201664030961
Sickness insurance as part of social insurance is obligatory for a majority of Czech citizens - i.e., they are required by law to pay this insurance. On the other hand, they are entitled to certain benefits of this system in the case of social events determined by law. Legislative changes in sickness insurance significantly influenced the development of all indicators of temporary incapacity for work (TIW) in individual regions. These changes are reflected most markedly in the indicators of the number of new cases of TIW per 100 insured persons, the average duration of 1 case of TIW and the average percentage of TIW. The aim of this paper is to give...
Liquidity Determinants of the Selected Banking Sectors and their Size Groups
Jana Laštůvková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 971-978 | DOI: 10.11118/actaun201664030971
The article focuses on the factors affecting the liquidity of selected bank sectors, as well as their size groups, using panel regression analysis. For higher complexity of the results, multiple dependent variables are used: liquidity creation, outflow and net change. The values are calculated based on the specific method of liquidity risk measurement - gross liquidity flows. The results indicate both multiple effects of some factors on the given variables, as well as isolated influence of factors on a single liquidity form or size group. Thus, when looking for determinants using just one form of liquidity, such as creation, the results need not necessarily...
Comparison of Operational Subsidies on Less Favoured Areas in EU Countries
Jana Lososová, Jaroslav Svoboda, Radek Zdeněk
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 979-992 | DOI: 10.11118/actaun201664030979
This article is aimed at an analysis of operational subsidies on the Less Favoured Areas (LFA) in the European Union countries. With the help of cluster analysis, the EU countries were divided into groups and, using correlation and regression analyses, the relations between defined indicators were evaluate. The indicators of FADN EU related to the cultivated land area were completed with relative indicators. Some differences were proved in subsidy effectiveness between particular groups of the countries. The amount of operational subsidies only has a positive impact on subsidised costs in the mountain LFAs. Worse productive and climate conditions increase...
Effect of the Centrifugal and Centripetal Effects in Core Versus (Semi)Periphery in Central Europe Countries
Martin Mariš
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 993-1000 | DOI: 10.11118/actaun201664030993
The paper focuses on examining regional disparities in Austria, Czech republic, Slovakia and Hungary (CE countries) in spatial perspective on NUTS III level. It took two crucial topics: spatial regional imbalances and polarization of the development. Spatial imbalances over the territory were examined via using the Moran's coefficient of spatial autocorrelation and the Geary's C statistics for mutual comparisons of achieving results. Both results showed a significant degree of the inequality. Polarization of the development was examined via measuring the possible centrifugal and centripetal effects, present in the proximity of the core regions of CE...
Pricing Electric Power in the Czech Republic and in Selected Countries
Eva Mazegue Pavelková, Iva Živělová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 1001-1011 | DOI: 10.11118/actaun201664031001
This paper focuses on state intervention in the pricing of electricity from renewable power sources in the Czech Republic when compared with the pricing in the Slovak Republic, Germany, France and Italy. In these countries the state intervention is implemented in different forms, but the critical part of the price is regulated everywhere by the state. The price of electricity is determined by its production costs, which depend on the source from which electricity is produced. The highest cost of electricity is required to generate renewable energy, particularly solar power, while the lowest costs of power are associated with its production by coal-fired...
Implementing Lean Production - Application of Little's Law
Michal Medonos, Marie Jurová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 1013-1019 | DOI: 10.11118/actaun201664031013
This article is about implementing lean production in a company and problems with this process. Firstly it focuses on the definition of lean production. From literature review we find that there isn't uniform opinion on the process of implementing lean production. Every author focuses on usage of different framework and tools during this process. In the article, there is mentioned problem of evaluating the level of implementation of lean production in the companies too. Secondly article presents the opinion of the authors about the principles of implementation of lean production. It is mechanism based on variability and buffers in the production systems....
Corporate Negative Equity: The Evidence from the European Union
Natalia Mokhova, Marek Zinecker
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 1021-1036 | DOI: 10.11118/actaun201664031021
After the Global Financial Crisis the frequency of reported losses of companies has increased significantly in countries of the European Union. Moreover, the financial leverage of companies have increased and even exceeded 100% in several countries. The reason of this development is negative equity that companies find themselves to report. At first sight negative equities are caused by accumulated losses from prior periods. However, there are some other reasons that can result in increasing negative equities in companies. They remain adequate as long as a company is able to pay its bills. Nevertheless, a company with negative equity is exposed to risks....
Corporate Social Responsibility in Food Manufacturing Companies - Environmental Dimensions
Ľudmila Nagyová, Mária Holienčinová, Ingrida Košičiarová, Tomáš Holota
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 1037-1043 | DOI: 10.11118/actaun201664031037
The degree of a company's acceptance and integration of the CSR concept is directly reflected in the fundamental principles of the company. Through the environmental sustainability, a company can make a positive contribution to the society and the natural environment. Competitive and cost pressures are the key drivers of sustainable development in the industry. Today, many international food and drink companies are delivering excellent achievements. The present paper tries to highlight how much are food manufacturing companies committed to caring for the environment as a main component of their CSR strategy. In order to fulfil the defined objectives...
Impact of the Financial Crisis of 2008 on Furniture Industry in the Czech Republic and Development of Tangible Fixed Assets in 2005-2012 and its Possible Renewal
Tomáš Najbrt, Kamila Hasilová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 1045-1052 | DOI: 10.11118/actaun201664031045
This paper is focused on furniture firms in the Czech Republic during the period 2005-2012, which covers the year of the crisis. The aim was to assess the given economic situation of the manufacturing businesses comparing some of the economic indicators such as tangible fixed assets, revenue from own production and services, pre-tax profit and labor costs. The study was conducted in the Czech Republic using the data provided by the Czech Statistical Office. Results for the specified period and selected groups of micro furniture companies are shown; dependence of economic indicators within the given time period is also analyzed. The analysis has shown...
Perception and Interpretation of Sustainability Among the Largest Corporations Established in the Czech Republic
Petr Petera, Jaroslav Wagner, Kateřina Knorová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 1053-1065 | DOI: 10.11118/actaun201664031053
The paper addresses perception and interpretation of sustainability among the largest corporations established in the Czech Republic. Despite the fact that the amount of literature on sustainability is substantial, there is lack of empirical investigation into understanding sustainability among corporations established in the Czech Republic. We used qualitative methodology (semi-structured interviews) to investigate how the largest corporations established in the Czech Republic understand and deal with sustainability-related issues. Key sustainability-related themes are identified and discussed in the paper. On the basis of comparison of our results...
Factors of Purchase of Bread - Prospect to Regain the Market Share?
Ladislav Skořepa, Kamil Pícha
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 1067-1072 | DOI: 10.11118/actaun201664031067
The aim of the article is to assess the consumers' buying behaviour and decision-making process when purchasing bread and to propose the ways of how to improve the position of bread in the market. 1601 properly filled questionnaires were used for the analysis. Results are presented under the form of frequencies of answers and statistical tests. The analysis included evaluation of statistical hypotheses about the independence (significance level α = 0.01) using the chi-square goodness of fit test and Pearson coefficient of contingency. The significance level was then compared with the value p-value, for p-value > α, the null hypothesis...
Analysis of Market Concentration in Selected Sectors of Public Procurement
Petr Svoboda
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 1073-1082 | DOI: 10.11118/actaun201664031073
The goal of this article is the analysis of influence of market concentration in selected areas of public procurement on chosen parameters of public procurement in years 2007 and 2011. Five concentration ratios and five parameters of contracts are calculated for each of five chosen areas of public tenders in 2007 and 2011. After this task, the correlation analysis between concentration ratios and parameters of contracts is done for finding out mutual relation between these two variables. Correlation analysis is then compared with four created hypotheses about the relationship between market concentration and parameters of public procurement The results...
Diversity Management in the Workplace
Hana Urbancová, Helena Čermáková, Hana Vostrovská
Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 1083-1092 | DOI: 10.11118/actaun201664031083
Diversity is a phenomenon which is increasingly manifesting itself in the globalized society; therefore, it is observable in various areas of human activity, and thus also in the labour market and work teams. Age, sex, ethnicity and nationality, creed or disabilities are among the parameters of diversity. The aim of the article is to identify and evaluate the implementation of Diversity Management in workplaces, whilst bearing in mind researched factors of diversity. The results were gained by conducting a primary survey by questionnaire in organizations (n = 315). The results showed that a total of 41.9% of selected organizations operating in the...