Zuzana Palkova

Zuzana Palkova
Slovak University of Agriculture in Nitra - Slovenska posnohospodarska univerzita v Nitre ·  Department of Electrical Engineering, Automation and Informatics

prof., Ing. PhD.
Drones utilisation for crop protection focusing on utilisation of drones for monitoring and protection services

About

119
Publications
16,646
Reads
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215
Citations
Citations since 2016
54 Research Items
173 Citations
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Introduction
Areas of current research: • design of simulation models for artificial irrigation and irrigation system as model of queuing theory, • optimisation of the processes in agriculture using ICT, methods of operational analysis and effective heuristic data processing, • eLearning and implementation of innovative methods into education, development of multimedia learning materials and learning courses.
Additional affiliations
October 1994 - present
Slovak University of Agriculture in Nitra - Slovenska posnohospodarska univerzita v Nitre
Position
  • Professor (Associate)

Publications

Publications (119)
Cover Page
Full-text available
Issue 2 from the Newsletter of BENEFIT project (Boosting Innovation in Education and Research of Precision Agriculture in Palestine). http://benefit.edu.ps/en=2298/
Article
The presented paper deals with the development of a new method for determining static and dynamic values of mechanical equivalents from ultrasonic wave measurements. The aim of the new method of determination of mechanical equivalents of materials based on ultrasonic wave measurements is the development of a new algorithm for implementation in inst...
Article
Full-text available
In this study, a new generalized regression neural network model for predicting the curing characteristics of rubber blends with different contents of carbon black filler cured at various temperatures is proposed for the first time The carbon black contents in the rubber blend and cure temperature were used as input parameters, while the minimum an...
Article
Full-text available
The article aims to use the generated sound as operational information needed for adaptive control of the metalworking process and early monitoring and diagnosis of the condition of the machined materials using a newly introduced surface roughness quality index due to the sound-controlled machining process. The object of the measurement was correla...
Article
Full-text available
Virtual Reality (VR) represents a computer technology to create a simulated three-dimensional (3D) environment. Compared to the traditional user interfaces, VR places the user inside an experience. This research aimed to implement and examine modern learning strategies and activities with the VR for teaching crime scene investigation. The target gr...
Article
Full-text available
Electric energy consumed by the public lighting represents a significant item in the city public sector energy consumption structure, which includes public buildings, public transportation and public lighting. Public lighting system is one of the most important public utility activities which is under control of local governments, which pay the cos...
Preprint
Full-text available
The presented paper proposes a method of adaptive control of the metal cutting process based on the analysis and interpretation of recorded sound for the identification of the cutting process. The presented research results clearly demonstrated the efficiency of using the sound generated during cutting by CNC lathe 16 K20T1 for the adaptive metalwo...
Data
https://www.canva.com/design/DAEVD5vOR18/8c3xF8dXTF17St4eZVrs7g/view?utm_content=DAEVD5vOR18&utm_campaign=designshare&utm_medium=link&utm_source=publishsharelink&fbclid=IwAR1i8KKIpO9xXgzw21jI-_fF-TKOy2mYQNCtsbl-E_PXReYRHQN6jYB3Gb8#9
Article
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The European Union Quality policy promotes original and traditional agricultural and food products of high quality at the EU level. It aims at protecting the names of specific products to promote their unique characteristics, linked to their geographical origin, traditional know-how and local culture. In May 2020, the European Commission launched t...
Article
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The formulation of the Hall–Petch relationship in the early 1950s has raised immense interest in studying the influence of the grain size of solid materials on their properties. Grain refinement can be achieved through extreme deformation. In the presented study, Equal-Channel Angular Pressing (ECAP) was successfully applied to produce an ultrafine...
Conference Paper
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In the current crisis caused by COVID-19, the need to teach at primary schools using digital technologies and online platforms such as e-learning has become more prominent than ever. The objective of the article is to present the activities that have been developed with the aim to contribute to the elimination of the negative aspects of distance ed...
Article
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The aim of the publication is to design an analytical relationship for determining the bending coefficient measurable by belt friction. Following the results of the presented measurements, the theoretical assumption is verified that in the material of the belt stress arises during the friction of the contact surfaces, due to external forces and ben...
Conference Paper
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Deeper learning is associated with increased retention, intrinsic motivation, the durability of knowledge and a solid understanding of the underlying principles of studied phenomena. It advocates learning beyond rote content knowledge accumulation using student-centred instructional strategies such as case-based learning, simulations, collaborative...
Article
en Residual stress is induced in the sample of a material stressed by external forces (tension, pressure, thermal stress, etc.) from the beginning of the stress. An instantaneous level is a function of the intensity of the external deformation work, the time and speed of the deformation, and the degree of immediate surface and volume deformation. I...
Article
Equal channel angular pressing (ECAP) is a widespread severe plastic deformation (SPD) method to fabricate ultrafine-grained bulk materials. In the field of materials engineering, this method has already experienced rapid development over the past few decades. In this research, the authors sought to create a prediction of shortening and the materia...
Conference Paper
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In this paper experiences with the teaching of informatics and automation at faculties not primarily involved in computer science are presented. The aim of the education is to prepare graduates who are not just "pure" programmers and have wider knowledge to be applicable mainly to manufacturing companies. Graduates, in addition to computer science...
Article
The paper aims to present a new method measuring the belt friction coefficient by the original computer-controlled measuring set. The essential elements of this semi-automated assembly are a digital force gauge and a digital servomotor. The Dynamixel MX64T servomotor with the externally installed shaft is a reliable, accurate and affordable instrum...
Article
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Mobile robots with differential chassis are very often used because of simple construction and a smaller number of drive and sensors elements. For practical applications, it is necessary to know the kinematic and dynamic structure of the differential mobile robot. This paper deals with identification of the dynamics of the differential robotic plat...
Article
en The mechanical properties of technical materials depend on their structure. They are influenced not only by their chemical composition, but particularly by the structural grain size. Significant changes in the mechanical behaviour of materials are related both to surface and volume properties, and not only in the field of mechanical parameters....
Article
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The paper presents an evaluation of the combined relative uncertainty of the result of direct step temperature measurements aimed at evaluation of the indirect measurements of the specific thermal capacity of the heat insulating concrete by means of a pair of resistive cable thermometers fitted with Pt100 temperature sensors and integrated into a c...
Conference Paper
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Education and technology are an interconnected. While education has not changed for years in terms of applied teaching approaches and techniques, we are witnessing a continuous innovation in terms of instructional technologies, ICT infrastructure, and the delivery methods related to education. The article presents the project TESLA - Virtual Realit...
Article
Thermal characteristic of insulation concretes is one of the key components in materials selection especially in civil constructions. In this article, non–tabulated material parameters of some innovative highly-insulating non-structural concretes are presented. The specific volumetric heat capacity, specific heat capacity, parameter of temperature...
Chapter
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Cuckoo search optimization (CSO) is an evolutionary, nature-inspired, swarm intelligence meta-heuristic algorithm, which is compatible to optimize non-polynomial combinatorial problems. It works based on the living style of cuckoos. They have obligatory brood parasitism conduct. Basically, the CSO adopted the process of egg emplacing and breeding o...
Article
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The application of intelligent control algorithms in the field of autonomous mobile robotics enables effective control of mobile robots with a minimal possible error. At present, most of commonly used systems to control an autonomous mobile robot are, however, too complicated to design. Our goal was to design a fuzzy controller with an optimal numb...
Article
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This paper from the field of environmental chemistry offers an innovative use of sorbents in the treatment of waste industrial water. Various industrial activities, especially the use of technological fluids in machining, surface treatment of materials, ore extraction, pesticide use in agriculture, etc., create wastewater containing dangerous metal...
Article
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For passive and low energy buildings, such an external envelope, which can provide a sufficient thermal insulation function with the smallest overall wall thickness., is thermally and financially the most advantageous. Concrete can be a suitable building material. At present, non-reinforced porous concretes, light autoclaved concretes (sand and ash...
Article
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The article concerns a mathematical description of electric power in the case of two nonlinear receivers connected to a common supply network. This description was made on the basis of the fundamental CPC (Currents' Physical Components) power theory. This theory was developed for one nonlinear receiver. In the case of two nonlinear receivers of the...
Article
The paper is intended for engineer laboratory teaching and measurements in production engineering. The aim is a new method of measuring using the semi-automated measuring set and presenting the results of static shear friction coefficients and kinetic shear friction coefficients, depending on the relatively low speeds of the uniform translational m...
Article
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This work evaluates the possibility of identifying mechanical parameters, especially upper and lower yield points, by the analytical processing of specific elements of the topography of surfaces generated with abrasive waterjet technology. We developed a new system of equations, which are connected with each other in such a way that the result of a...
Article
Full-text available
The purpose of this study was to determine a method for multi-parametric output regulation of a gasification boiler especially designed for heating or for hot water heating in buildings. A new method of regulation is offered, namely more parametric regulation via proportional-integral-derivative (PID) controllers that are capable of controlling the...
Patent
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During the detection of the failure of the voltage on the first phase and the power supply of the appliance the power supply is on the basis of the instructions from the control unit (1) connected to the second phase; in case of the failure on the second phase the power supply of the appliance is connected to the available third phase. The device c...
Book
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The natural resources (oil, coal, natural gas) are insufficient to satisfy the needs of the people for electric and heating energy because sources of fossil fuels are limited. Emission of large quantities of carbon-dioxide into the atmosphere, in the course of combustion processes of solid and liquid fuels have been disrupting the environment. The...
Conference Paper
FOOD INCUBATORS & REGIONAL PARTNERSHIPS: THE WAY HOW TO DEVELOP REGIONS Z. Palkova, M. Olejar, V. Cviklovic, O. Lukac Slovak University of Agriculture in Nitra (SLOVAKIA) Over the past five years a significant number of kitchen incubators have opened, especially in the United States; from virtually no food incubators to probably more than 200. Fr...
Article
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The issue of navigation methods is being continuously developed globally. The aim of this article is to test the fuzzy control algorithm for track finding in mobile robotics. The concept of an autonomous mobile robot EN20 has been designed to test its behaviour. The odometry navigation method was used. The benefits of fuzzy control are in the evide...
Article
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This contribution is oriented to measurement and evaluation of the obtained energy from photovoltaic cells efficiency in practice conditions. Photovoltaic cells were monitored during one year in Nitra, Slovakia. Cells are monocrystalline with surface 1.95 m 2 and in full measurement time are directed perpendicular to the sun rays. Tracking and stat...
Article
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This contribution is oriented to ways of computer vision algorithms for mobile robot localization in internal and external agricultural environment. The main aim of this work was to design, create, verify and evaluate speed and functionality of computer vision localization algorithm. An input colour camera data and depth data were captured by MS® K...
Article
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Wider use of alternative energy sources is a real requirement of sustainable economy – not only from the point of view of limited natural resources –, and there is a question what is the knowledge, the attitude of young generation. As there is a strong connection between the use of renewable energy and sustainability, the issues must be examined to...
Research
The use of renewable energies (wind power, solar and photovoltaic energy, biomass and biofuels, geothermal energy and heat-pump systems) undeniably contributes to limiting climate change. Furthermore, it plays a part in securing energy supply and creating employment in Europe, thanks to the increase in the production and consumption of local energy...
Book
Full-text available
The use of renewable energies (wind power, solar and photovoltaic energy, biomass and biofuels, geothermal energy and heat-pump systems) undeniably contributes to limiting climate change. Furthermore, it plays a part in securing energy supply and creating employment in Europe, thanks to the increase in the production and consumption of local energy...
Chapter
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Today over six billion people have access to a connected mobile device, and for every one person who accesses the Internet from a computer do so from a mobile device as well. Mobile technology is changing the way we live, and it is beginning to change the way we learn (UNESCO. 2014. Retrieved from http:// www. unesco. org/ new/ en/ unesco/ themes/...
Chapter
So far worldwide economy was oil-based. Oil and other examples of fossil energy were used for fuel, for heating, for the production of a wide range of products like plastics, medicines, food additives, etc. This oil-based economy has many consequences—global warming due to a growing production of carbon dioxide, limited quantities of oil, dependenc...
Book
Full-text available
Mobile Web 2.0 Tools and applications in online training and tutoring Final v.1.7 This project has been funded with support from the European Commission. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein. MOBIVET2.0 Project Mobile...
Book
Full-text available
All agricultural activities, including the production of food is dependent on the electricity at practically all stages. The greater is demand for electricity, the more modern and high-tech technologies are used for its production . It also increases with the growth of farm and new investments. In many rural areas, aging infrastructure, energy syst...
Data
C-TEST project Clean-Tech Employees & Students www.c-test.eu
Conference Paper
Full-text available
In this paper, we present a hybrid educational platform developed to assist tutors in teaching and students in learning about the challenging domain of Solar Energy. The platform combines traditional learning procedures offered to students via Moodle, a very popular Virtual Learning Environment (VLE), with learning procedures and scenarios delivere...
Conference Paper
Full-text available
The main aim of the article is to present how virtual reality is used in AVARES for making education more attractive to young generations. AVARES (Enhance attractiveness of renewable energy training by virtual reality), is a project supported by the European Commission under the Leonardo da Vinci Transfer of Innovation grant scheme. It aims to deve...