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The problem of optimisation methods is the stagnation of population P, which results in a local solution for the task. This problem can be solved by employing an archive for good historical solutions outperformed by the new better offspring. The archive A was introduced with the variant of adaptive differential evolution (DE), and it was successfully applied in many adaptive DE variants including the efficient jSO algorithm. In the original jSO, the historical good individuals replace the random existing positions in A. It causes that outperformed historical solution from P with lower quality to replace the stored solution in A with better quality. In this paper, a new approach to replace individuals in archive A more progressively is proposed. Outperformed individuals from P replace solutions in the worse part of A based on the function value. The portion of A selected for replacement is controlled by the input parameter, and its setting is studied in this experiment. The proposed progressive archive is employed in the original jSO. Moreover, the Eigenvector transformation of the individuals for crossover is applied to increase the efficiency for the rotated optimisation problems. The efficiency of the proposed progressive archive and the Eigen crossover are evaluated using the set of 29 optimisation problems for CEC 2024 and various dimensionality. All the experiments were performed on a standard PC, and the results were compared using the standard statistical methods. The newly proposed algorithm with the progressive archive approach performs substantially better than the original jSO, especially when 20 or 40 % of the worse individuals of A are set for replacement. The Eigen crossover increases the performance of the proposed jSO algorithm with the progressive archive approach. The estimated time complexity illustrates the low computational demands of the proposed archive approach. [ABSTRACT FROM AUTHOR]

Petroleum and natural gas still have their place among the most important resources in many industrial areas. Their global consumption influences an increasing demand on the quality of drilling works and the efficiency of extraction. Nonetheless, even in this field of human activity, we can encounter exceptional events and accidents. One of the most serious kinds of accidents during exploration is the so called open eruption of extracted medium. The specific case of this accident is an open eruption caused by drilling tools when a working crew is not capable of securing drilling workplace. In order to solve this emergency situation, Main Mining Rescue Station Hodonin (HBZS Hodonin), in cooperation with researchers from Faculty of Mining and Geology at VSB - Technical University of Ostrava, designed and developed specialised apparatus DPRP (Drill Pipe Rescue Press), working designation FIB-1. This apparatus enables the liquidation of eruption by pressing the drilling pipe. The residual crack, which remains following the pressing, must be eliminated by sealing materials. This paper reviews the testing of sealing elements (materials), designed by our team, in residual crack of circle shape with help of hydraulic press MTS 816 Rock Test System.

This paper provides a real application of a popular swarm-intelligence optimisation method. The aim is to analyse the efficiency of various settings of the marine predator algorithm (MPA). Four crucial numerical parameters of the MPA are statistically analysed to propose the most efficient setting for solving engineering problems. Besides population size, particle velocity parameter P, Lévy flight parameter β , and fish aggregating device (FAD) probabilities are studied. Finally, 193 various settings, including fixed values and dynamic changes of the MPA parameters, are experimentally compared when solving 13 engineering problems. Standard statistical approaches are employed to highlight significant differences in various MPA settings. The setting of two MPA parameters (P, FADs) significantly influences MPA performance. Three newly proposed MPA settings outperform the original variant significantly. The best results provide the MPA variant with the dynamic linear change of P from 0.5 to 0. These parameters influence the velocity of prey and predator individuals in all three stages of the MPA search process. Decreasing the value of P showed that decreasing the velocity of individuals during the search provides good performance. Further, lower efficiency of the MPA with higher FAD values was detected. It means that more occasional use of fish aggregating devices (FADs) can increase the solvability of engineering problems. Regarding population size, lower values ( N = 10 ) provided significantly better results compared with the higher values ( N = 500 ). [ABSTRACT FROM AUTHOR]

The possibilities of remote sensing techniques in the field of the Earth surface monitoring and protection specifically for the problems caused by petroleum contaminations, for the mapping of insufficiently plugged and abandoned old oil wells and for the analysis of onshore oil seeps are described. Explained is the methodology for analyzing and detection of potential hydrocarbon contaminations using the Earth observation in the area of interest in Slovakia (Korňa) and in Czech Republic (Nesyt), mainly building and calibrating the spectral library for oil seeps. The acquisition of the in-situ field data (ASD, Cropscan spectroradiometers) for this purpose, the successful building and verification of hydrocarbon spectral library, the application of hydrocarbon indexes and use of shift in red-edge part of electromagnetic spectra, the spectral analysis of input data are clarified in the paper. Described is approach which could innovate the routine methods for investigating the occurrence of hydrocarbons and can assist during the mapping and locating the potential oil seep sites. Important outcome is the successful establishment of a spectral library (database with calibration data) suitable for further application in data classification for identifying the occurrence of hydrocarbons.

The presence of unconventional resources has been proven in deeper parts of mature oil and gas provinces and coal basins of the world. In this context, it is worth to focus also on the prospects of unconventional gas production from within hydrocarbon provinces of the Moravian part of the Vienna basin. The estimation of hydrocarbon generation potential of Jurasic marls from the Mikulov Formation of the Czech part of the Vienna Basin was performed based on the Rock Eval pyrolysis.

Sustainable tourism development meets the needs of present tourists and host regions while protecting and increasing its possibilities for the future. It should lead to management of all resources, so as to meet economic, social and aesthetic needs while maintaining cultural integrity, the most important ecological processes, biological diversity and the processes that make life possible. Sustainable tourism products are products that work in accordance with the local environment, society and culture so that the environment, society and culture can benefit and not to become the victims of tourism development. At present, luckily, it is possible to observe, in a wide range of tourist activities and especially in industrialized countries, also increasing interest in so-called industrial tourism aimed at exploring technical monuments. This form of tourism was initially the domain of narrow range of technically-based supporters, but gradually becomes more attractive to the broader public.

Tento výzkum se zabývá problematikou zvyšování výtěžnosti ropy pomocí rozšířeného zavodňování chemikáliemi, z nichž je věnována největší pozornost povrchově aktivním látkám. Dlouhodobým hlavním cílem tohoto výzkumu je aplikace těchto metod v podmínkách české republiky, konkrétně na ložisku Ždánice - miocén, kde vlastnosti obsažené ropy, jako je viskozita a objemová hmotnost, neumožňují použití klasických těžebních metod. Pro vhodnost použití jsme v laboratorních podmínkách simulovali procesy probíhající při těžbě ropy za ložiskových podmínek a hodnotili vliv jednotlivých povrchově aktivních látek na výtěžnost těžké ropy

Emise CO2 vznikající lidskou činností - tzv. antropogenní emise CO2 a jejich vzestupný trend, mohou být některými odborníky považovány za vážné nebezpečí pro udržitelný vývoj lidstva a jejich omezování za nezbytnou podmínku ochrany životního prostředí. Oxid uhličitý je významný z plynů způsobujících skleníkový efekt, který se projevuje oteplováním zemského povrchu v důsledku změn toků tepelného záření mezi zemí a atmosférou. Laboratorní měření poskytla hodnoty porozity a koeficientu propustnosti horninových vzorků, které byly odvrtány z podzemního zásobníku plynu. Naše měření vykázalo snížení kolektorských parametrů horninových vzorků, které bylo způsobeno změnou vnitřní struktury horniny díky opakovanému zvýšení a snížení tlaku na rostlou část vzorku

V príspevku autori informujú o možnostiach využitia vybraných metód diaľkového prieskumu Zeme (DPZ) pre sledovanie, analýzy a identifikovanie starých ekologických záťaží spôsobených ropnými kontamináciami z nedostatočne zlikvidovaných ropných vrtov a sond na Hodonínsku. Zaoberajú sa popisom a vymedzením sledovaných lokalít, prístupmi DPZ k problematike detekcie ropných látok a navrhovanou metodikou vyhodnotenia zozbieraných vstupných dát. Ďalej sú diskutované metódy vhodné pre tento účel a taktiež parametre družicových dát. Opisované sú terénne experimenty, využitá technika a ďalšie smerovanie aktivít výskumu. Na záver sú spomenuté návrhy na využitie a komplexnejšie porovnanie výsledkov s už prebehnutými resp. plánovanými výskumami v oblastiach Nesytu - Hodonína.

Geological storage of CO2 is the final link in the technological chain CCS (Carbon Capture and Storage), one of the possible technologies for reducing greenhouse gas emissions arising from the burning of fossil fuels. CCS is one of the key energy technologies of the Strategic Energy Technology Plan of the European Union (SET-plan). In the Czech Republic, activities in the field of CCS have focused on research and development projects, including the mapping of geological structures suitable for potential CO2 storage and the transposition of relevant European legislation - see Act No. 85/2012 Coll., on the Storage of Carbon Dioxide into Natural Rock Structures. One of the options for geological storage of CO2 is the use of mined or mined hydrocarbon deposits. However, these structures could also be operated as underground CO2 reservoirs, enabling its reuse. Yet some of them could also be used for hydrogen storage if these locations are appropriately incorporated into the construction of a new hydrogen infrastructure. The report presents part of the research results related to hydrocarbon deposits in the North Moravia region. [ABSTRACT FROM AUTHOR]

A well for oil and gas production and the deposit of oil and gas form one hydrodynamic system. From the point of view of filtration process, the well is, in comparison with the permeable layer of the deposit, a flow path with the lowest filtration resistance. This also causes the movement of liquids into the well if migration has already been induced in the deposit. This process takes place (without any external actions) until the pressure conditions are balanced. The classical common abandonment of the production well is performed by plugging the total length (or selected intervals) with cement mixtures and by closing with a concrete slab at the depth of about 1.5 m below the ground surface. However, it is expected that the energy of the deposits has been totally or almost totally exhausted and the pressure in the deposit has been lowered to the level enabling the safe, economically reasonable and ecological abandonment.

Aim: The aim of the study was to examine the psychometric properties of the Czech version of the Surgical Fear Questionnaire. Design: A cross-sectional study design. STROBE guidelines for reporting observational studies were followed for the study. Methods: The study sample consisted of 332 adult patients from the Czech Republic. The Surgical Fear Questionnaire (SFQ) was used to measure preoperative fear. Cronbach's alpha was calculated to test reliability. The construct validity of the SFQ was tested using exploratory factor analysis. Results: Reliability of the instrument as a whole was confirmed by the high value of the Cronbach alpha coefficient (0.813). Two factors were identified for the Czech version of the SFQ in factor analysis. Conclusion: The Czech version of the Surgical Fear Questionnaire showed good validity and reliability and can be used in research and clinical practice. Further analysis of psychometric properties is needed to confirm these results. [ABSTRACT FROM AUTHOR]

A large number of cyber attacks are commonly conducted against home computers, mobile devices, as well as servers providing various services. One such prominently attacked service, or a protocol in this case, is the Secure Shell (SSH) used to gain remote access to manage systems. Besides human attackers, botnets are a major source of attacks on SSH servers. Tools such as honeypots allow an effective means of recording and analysing such attacks. However, is it also possible to use them to effectively predict these attacks? The prediction of SSH attacks, specifically the prediction of activity on certain subjects, such as autonomous systems, will be beneficial to system administrators, internet service providers, and CSIRT teams. This article presents multiple methods for using a time series, based on real-world data, to predict these attacks. It focuses on the overall prediction of attacks on the honeynet and the prediction of attacks from specific geographical regions. Multiple approaches are used, such as ARIMA, SARIMA, GARCH, and Bootstrapping. The article presents the viability, precision and usefulness of the individual approaches for various areas of IT security. [ABSTRACT FROM AUTHOR]

The natural gas sector plays a significant role in the energy sector. In Ukraine, natural gas accounts for about 30 % of the total consumption of energy resources, while in the Czech Republic only about 16 %. The article presents a comparative analysis of the natural gas sector in Ukraine and the Czech Republic in 2010-2019. The dynamics of changes in the production and consumption of natural gas in the discussed countries was presented. The structure of primary energy consumption, including natural gas, in 2018 and 2019 was analyzed. The analysis also covered the import of natural gas to Ukraine and the Czech Republic for own demand. Ukraine still has to import natural gas to meet its own demand, but in recent years, there have been drastic changes in the import of natural gas - and import dependency has decreased by about 24 % in the analyzed period [1,2]. On the other hand, in the Czech Republic, the import of natural gas fluctuated within a limited range, and the import dependence increased by about 27 % compared to 2010 [1,3,4]. The article also deals with the problems of the gas pipeline system supplying natural gas from Russia to European countries. [ABSTRACT FROM AUTHOR]

Underground gas storage (UGS) has become an essential part of gas transmission systems in all developed industrial countries. This is because transit pipelines transporting natural gas to consumers are limited by the maximum flow capacity and are not able to cover the increased seasonal or peak demand. UGS facilities then guarantee the security and reliability of gas supplies, especially in the event of a transit transmission failure. The actual safety of UGS operation is then given by the reliability of storage structures, technical and technological equipment, i.e. the so-called primary and secondary tightness. The article evaluates the primary conditions of tightness on selected UGS operated by MND Gas Storage a. s. Hodonín and MND Gas Storage Germany GmbH, Germany. These are the Uhřice, Uhřice-South (Czech Republic) and Hähnlein and Stockstadt (Germany) reservoirs. [ABSTRACT FROM AUTHOR]

In most countries, the gas sector is one of the sectors that have a significant impact on the state energy security. After the collapse of the Soviet Union and after the changes of communist rule, the Czech Republic as well as Ukraine began their own battle for energy independence. After political and economic revolution, there was a long and difficult journey which had both positive and negative consequences for the development of the countries. Natural gas consumption in Ukraine amounted to almost 114.95 billion cubic meters in 1991, while in the Czech Republic it was near 5.9 billion cubic meters. [2,4] Accordingly, gas consumption per person reached circa 2.2 thousand cubic meters per year in Ukraine, and 0.57 thousand cubic meters per year in the Czech Republic. Currently, Ukraine has a significant advantage in gas reserves and capacity of underground gas storages. According to the official data, the total gas reserves in Ukraine are about 1050 billion cubic meters, while in the Czech Republic only 4.73 billion cubic meters. [ABSTRACT FROM AUTHOR]

Sources of natural gas are in most cases located in remote areas far from the places where the gas is utilized, i.e. especially developed industrial countries to which it is transported via pipeline. However, transit gas pipelines, which are transporting extracted gas to the consumers, have a relatively limited peak capacity, the transit supplies essentially have a stable character and are not able to cover increased seasonal or peak demands for gas in gas distribution networks. The solution of this problem is the main task for underground gas storages (UGS) that through the operative regulation maintain stability and reliability of the entire gas system. This article provides a general list of options that can increase the storage capacity of natural gas in underground gas storages and focuses on factors that influence the options of an individual UGS. [ABSTRACT FROM AUTHOR]

This paper presents a research on students using the Gazepoint device to visualise the practices and strategies that students used in order to solve assignments in the disciplines of natural science. The analysis of visual perception of students is complemented by a questionnaire survey for a group of respondents aged 15-16. The essence of the study was to find out how the students proceeded in monitoring assignments displayed on the screen, how they continued working with the assignments, and whether the layout of the schematics, tables and applied images affected students 'correctness for the solution. The main aim of the research was to find some similar segments in the experimental data and obtained clusters that would suggest a similar approach of problem solving by students - respondents, and to find out if, and possibly how, some strategies in the assignments differ for the talented students from the standard pupil population and compare the outcomes with students' characteristics. The other aim of study was to confirm the presence of gifted students in natural sciences in a given sample of respondents on the basis of eye-tracking technology. Also on the basis of similarities in assigned task solving the aim was to find other students who can be seen similarly to the gifted ones from a view of e.g. physiological dynamics of eyes of the students in the context of the given selected seven tasks in the area of the chemical elements identification. For both groups of students, some basic measures are proposed to increase the efficiency of students' work with an assignment displayed on a computer screen. Our results show that in the task solving, one gifted student was identified next to a cluster of four similarly performing students on the basis of eye-movements parameters. [ABSTRACT FROM AUTHOR]

Aim: The study aimed at assessing the quality of sleep in seniors. Another objective was to determine the impact of gender, age, type of residence and taking sleeping medication on the quality of sleep. Design: A cross-sectional study. Methods: Data were collected using the standardized Pittsburgh Sleep Quality Index (PSQI) questionnaire. The sample comprised 146 seniors living in the Moravian-Silesian Region, Czech Republic. The survey was conducted from January 2014 to the end of October 2014 in a long-term chronic care department of a selected hospital, two retirement homes and among seniors living in their own homes. Results: Thirty-five (24%) seniors had their global PSQI scores of 5 (i.e. the highest score indication good sleep quality) or less. The remaining 111 (76%) participants were shown to suffer from impaired sleep quality as their global PSQI scores were 6 or higher. There were statistically significant differences in component scores between seniors with the global PSQI scores of 5 or less and those with higher scores. The best quality of sleep was observed in females, seniors in the 65–74 age category and those sharing their own homes with their spouses or partners. Conclusion: Subjective sleep quality assessment varies significantly with respect to gender, age, type of residence and use of sleeping medication. [ABSTRACT FROM AUTHOR]

The present paper describes the historic development of the and includes proposals of how local unique historical sites can be incorporated the tourism industry. From the obtained information it can be assumed, that Třemešek is not only a small village with a few houses, a castle and a brewery ruin but a place with a rich history. Among the most interesting matters it may include, for example, the fact that Třemešek ponds belong to the oldest ponds systems in Czech Republic and entrance to the Třemešek castle is a well-preserved, a purely Renaissance entrance portal. One of the most important events in the development of the village and in fact (indeed) the entire area around could be the project implementation on the Třemešek territory by Baťa's textile city. From the village, which nowadays has only a few dozen inhabitants could become a quite big factory town, with a population comparable in that time to Šumperk. Even this information is sometimes unknown by the visitors of Šumperk city or Jeseník city, and also for the inhabitants around. [ABSTRACT FROM AUTHOR]