Karel Šuhajda
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View article: Numerical analysis of the impact of a vegetation façade on the immediate surroundings of a building
Numerical analysis of the impact of a vegetation façade on the immediate surroundings of a building Open
This study evaluates the impact of a vegetation façade on the immediate surroundings of a residential building using numerical simulations. The analysis focuses on key thermal indicators, including Mean Radiant Temperature (MRT), Physiolog…
View article: Geometric-analytical assessment of the strategic potential of construction companies using qualitative methods
Geometric-analytical assessment of the strategic potential of construction companies using qualitative methods Open
Many years of experience show that in most cases the company’s development strategies, which are an essential condition for their competitiveness, have been unsuccessful. The main reason for this situation is that the possibilities of impl…
View article: Assessment of Risks of Voltage Quality Decline in Load Nodes of Power Systems
Assessment of Risks of Voltage Quality Decline in Load Nodes of Power Systems Open
The results of numerous studies show that the control of power grid modes is carried out mainly using a technical criterion. The economic criterion is taken into account through the use of complex and inaccurate models that do not accurate…
View article: From BIM to BEM—Modern Thermal Simulations Using a Building Information Management Model: A Case Study
From BIM to BEM—Modern Thermal Simulations Using a Building Information Management Model: A Case Study Open
This article raises awareness of Building Information Management (BIM) and its significance for Construction 4.0. BIM is often mistakenly understood only as a 3D model of a building object, but its true potential lies in the information as…
View article: Effect of Microwave Radiation on the Properties of Hydrogel, Cork, Perlite, and Ceramsite
Effect of Microwave Radiation on the Properties of Hydrogel, Cork, Perlite, and Ceramsite Open
The present work analyzes the effect of releasing physically bound water from hydrogel, cork, perlite, and ceramsite on materials exposed to microwave radiation and subsequently investigates possible changes in the physical properties of t…
View article: The Effect of Microwave Radiation on the Solidification of C-S-H Gels: Its Influence on the Solidified Cement Mixtures
The Effect of Microwave Radiation on the Solidification of C-S-H Gels: Its Influence on the Solidified Cement Mixtures Open
The present paper deals with the properties of hardened cement mixtures that have been exposed to microwave radiation. Microwaves fall under electromagnetic waves (EMW), and the main reason for using EMW radiation is to accelerate the dryi…
View article: Experimental Research on Hybrid Hardwood Glue-Laminated Beams
Experimental Research on Hybrid Hardwood Glue-Laminated Beams Open
The aim of this work was to verify the behavior of hybrid hardwood glue-laminated beams and the possibility of replacing Norway spruce (Picea abies) construction elements, especially in roof and ceiling structures. The samples were six lam…
View article: Effect of Microwave Radiation on the Compressive Strength of Solid Ceramic Brick
Effect of Microwave Radiation on the Compressive Strength of Solid Ceramic Brick Open
Microwave radiation is widely utilized in construction practice, especially for drying building materials, remediating damp masonry, or sterilization of biotic pests that have infested building structures. The available scientific and tech…
View article: Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre Materials
Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre Materials Open
The combustibility of natural wood presents a negative impact for using this material in buildings. Timber elements can be cladded with boards made of non-combustible materials. This study represents a group of options for increasing the r…
View article: The Impact of Energy Development of the European Union Euro Area Countries on CO2 Emissions Level
The Impact of Energy Development of the European Union Euro Area Countries on CO2 Emissions Level Open
In the last years, the fact of anthropogenic impact on climate change taking place in the world has become indisputable. Both countries and international organizations have taken steps to reduce GHG emissions, move to a low-carbon economy …
View article: The possibilities of using microwave radiation to accelerate the solidification of mixtures consisting of a polymer matrix binder and a waste thermal insulation filler
The possibilities of using microwave radiation to accelerate the solidification of mixtures consisting of a polymer matrix binder and a waste thermal insulation filler Open
The presented article deals with the possibility of using the application of microwave radiation on fresh mixtures, consisting of a filler made of waste thermal insulation expanded polystyrene and a binder made of a polymer mixture, to acc…
View article: Complex Expert Assessment of the State of Business Enterprises
Complex Expert Assessment of the State of Business Enterprises Open
The commercial success of businesses depends to a large extent on the ability to quantify the current situation at the desired point in time.It helps to make the right strategic development decisions and reveals weaknesses.The state of dev…
View article: Comparative Assessment of the Impact of Electricity Consumption in Different Economic Sectors on the Economic Development of the EU Member States
Comparative Assessment of the Impact of Electricity Consumption in Different Economic Sectors on the Economic Development of the EU Member States Open
Recently, the Member States of the European Union (EU) have found themselves in a controversial situation. On the one hand, national economic development is barely possible without increasing electricity consumption, whereas on the other w…
View article: EXPLORING CONCOMITANT CONCEPTS IN THE DISCUSSION ON THE CIRCULAR ECONOMY: A BIBLIOMETRIC ANALYSIS OF WEB OF SCIENCE, SCOPUS AND TWITTER
EXPLORING CONCOMITANT CONCEPTS IN THE DISCUSSION ON THE CIRCULAR ECONOMY: A BIBLIOMETRIC ANALYSIS OF WEB OF SCIENCE, SCOPUS AND TWITTER Open
A growing interest in the circular economy, which is seen in the intensification of public discourse, could lead to a danger of blurring the concept and introducing inefficiency in implementing circular economy-based solutions. This study …
View article: The Impact of National Economic Development on the Shadow Economy
The Impact of National Economic Development on the Shadow Economy Open
A country’s competitiveness depends primarily on its economic development which in turn is affected by a number of factors. Some of these, such as investment, favorable business conditions, legal environment, etc., promote economic develop…
View article: Optimization of geometric arrangement of filled ceramic blocks
Optimization of geometric arrangement of filled ceramic blocks Open
The focal point of this article is the development trend in the material and geometric arrangement of ceramic masonry blocks made of fired clay with the thickness of 500 mm using a tongue-and-groove connections and thin-layer gluing with a…
View article: Recycling of thermal insulation materials
Recycling of thermal insulation materials Open
This task deals with the properties and possibility of recycling the thermal insulation materials such as polystyrene and mineral wool, not only from the demolition but also the materials left over after the construction of the new buildin…
View article: Reflectance expression of exterior plasters
Reflectance expression of exterior plasters Open
This paper deals with the properties of commonly used exterior plasters on thermal properties of construction. The surface spectral emissivity properties of acrylate, silicate, and silicon plasters and also the dependence on abrasiveness a…
View article: Experimental research on load bearing capacity of adhesively jointed beech timber lamellas
Experimental research on load bearing capacity of adhesively jointed beech timber lamellas Open
The aim of this work was to verify behavior of a beech timber finger-joint in local conditions in the Central Europe. The samples were produced with a glued joint with the finger length of 23 mm according to standard ČSN EN 14 080. Commonl…
View article: Evaluation of suitability of selected hardwood in civil engineering
Evaluation of suitability of selected hardwood in civil engineering Open
Apart from gradually disappearing spruce wood, hardwood, particularly beech, oak, hornbeam, and maple, will be among the future local wood sources in the Central Europe. A multiple criteria analysis, PROMETHEE method, was used in order to …
View article: Analysis and Design Rehabilitation Foundation of Timber Houses in Scandinavian Climate Condition
Analysis and Design Rehabilitation Foundation of Timber Houses in Scandinavian Climate Condition Open
The article describes the analysis and remediation design of the rudiments walls of Wooden construction in the "two by four" system in Central Europe, in particular the Scandinavian climate. This article is focused on the real problems, wh…
View article: Influence in Connection of a Vapor Barrier in Critical Detail of Composite Structures
Influence in Connection of a Vapor Barrier in Critical Detail of Composite Structures Open
Influence of connection vapor barrier in a critical detail of composite structures is directed to the humidity temperature evaluation of a design detail, focusing on the risk of mold growth. Detail corner of the building is elected with a …
View article: Polyurethane adhesives in flat roofs
Polyurethane adhesives in flat roofs Open
It is necessary to stabilize individual layers of flat roofs, mainly because of wind suction. Apart from anchoring and surcharge, these layers can be secured by bonding. At present gluing is an indispensable and widely used stabilization m…
View article: Polyurethane adhesives in flat roofs
Polyurethane adhesives in flat roofs Open
\nIt is necessary to stabilize individual layers of flat roofs, mainly because of wind suction. Apart from anchoring and surcharge, these layers can be secured by bonding. At present gluing is an indispensable and widely used stabilization…
View article: MICROWAVE RADIATION AND ITS APPLICATION ON CONSTRUCTION MATERIALS
MICROWAVE RADIATION AND ITS APPLICATION ON CONSTRUCTION MATERIALS Open
Drying structures using high-frequency electromagnetic radiation or microwave technology is currently gaining much more usage in the engineering practice. The goal of the method is the quickest elimination of water in construction (wall, f…
View article: SELECTION OF HEATING SYSTEM BASED ON ACQUISITION AND OPERATING COSTS FOR FAMILY HOUSES
SELECTION OF HEATING SYSTEM BASED ON ACQUISITION AND OPERATING COSTS FOR FAMILY HOUSES Open
The aim of this study is to evaluate mutual dependences and significance of the input factors of a heating system for a family house. The input factors which are being most commonly considered are operating costs, acquisition prices on fin…