Search results
Title Investigating the pressure distribution on uneven surfaces using an educational robot for development of ergonomic school furniture Author info Daniel Novák, Viktor Novák ... [et al.] Author Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Co-authors Novák Viktor 1982- (25%)
Voštinár Patrik 1988- (25%) UMBFP05 - Katedra informatiky
Volf Jaromír 1954- (25%)
Source document Manufacturing Technology : Journal for Science, Research and Production. Vol. 24, no. 1 (2024), pp. 98-103. - Ústí nad Labem : Univerzita Jana Evangelisty Purkyně v Ústí nad Labem, 2024 Keywords vyučovací proces - teaching process vzdelávacie techniky roboty - robots senzory - sensors Form. Descr. články - journal articles Language English Country Czech Republic URL Link na zdrojový dokument Link na plný text Public work category ADM No. of Archival Copy 54407 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
article
Title Evaluation of electrical resistance of electrodes with conductive ink for agriculture applications using computer technology Author info Viktor Novák, Jaromír Volf ... [et al.] Author Novák Viktor 1982- (5%)
Co-authors Volf Jaromír 1954- (10%)
Novák Daniel 1952- (70%) UMBFP07 - Katedra techniky a technológií
Vrbík Václav (5%)
Ryženko Vladimír (5%)
Stebila Ján 1979- (5%) UMBFP07 - Katedra techniky a technológií
Source document Research in agricultural engineering. Vol. 68, no. 4 (2022), pp. 194-200. - Praha : Česká akademie zemědělských věd, 2022 Keywords elektródy senzory - sensors pneumatiky Form. Descr. články - journal articles Language English Country Czech Republic Annotation The article presents the ongoing research, which aims to select suitable electrodes and mixtures of conductive inks, which will be used as a converter between the pressure and electrical quantities in the design of planar pressure transducers. In the described research, we continue our previous work and the work of other authors who have previous ly dealt with the properties of conductive inks and electrodes. Due to the only partial results in the given field, we decided to perform an extensive and original measurement of a total of 172 combinations of different electrode sizes, various conductive ink mixtures and ink layer thicknesses. Thanks to this, it will be possible, in the future, to select a suitable combination of electrodes and inks when designing pressure sensors for industrial and agricultural applications without the need to perform time-consuming preparatory measurements. The aim of the measurements is also to determine the usable working range of the pressures and the corresponding sensitivity for certain combinations of electrodes and inks, and to also exclude those variants which are unsuitable for the given purposes. This paper presents the introductory part of the measurements, which aims to verify the methodology of the measurements on a test plate at robotised workspace that is connected to a PC in real time via the program LabView. The described introductory measurements proved our methodology to be suitable to the given purpose; however, there minor problems emerged with the actual working pressure range of the transducer and the consequential necessary adjustments of the control program. URL Link na zdrojový dokument Public work category ADM No. of Archival Copy 52511 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title Measurement of static forces up to 50 N using piezo ceramics PZK 850 Author info Jaromír Volf, Viktor Novák ... [et al.] Author Volf Jaromír 1954- (10%)
Co-authors Novák Viktor 1982- (5%)
Stebila Ján 1979- (5%) UMBFP07 - Katedra techniky a technológií
Kvasnová Petra 1978- (5%) UMBFP07 - Katedra techniky a technológií
Ryženko Vladimír (5%)
Novák Daniel 1952- (70%) UMBFP07 - Katedra techniky a technológií
Source document Measurement : Journal of the International Measurement Confederation. Vol. 176 (2021), pp. [1-5]. - Oxford : Elsevier Ltd., 2021 Keywords sila - force merania - measurements Form. Descr. články - journal articles Language English Country Great Britian Annotation The article deals with a piezoelectric force sensor, that bases on the use of piezo ceramics PZK 850. These types of sensors were used due to characteristic of the piezo-material (i.e. crystal) particularly for dynamic force measurement only. The developed sensor is suitable to measure static forces up to 50 N; the principle of the measurement of static forces bases on the crystal vibration being damped with the acting static force, whereby corresponding resonance frequencies are determined. The article describes the physical principle of the operation and the technical design of the sensor; there are presented two slightly different variations of the sensor. Further there are stated basic calculations of the sensor parameters and of the corresponding resonance frequencies. Finally, individual force-voltage characteristics are determined and respective results and possible use of such types of sensors are discussed. URL Link na plný text Public work category ADC No. of Archival Copy 50202 Repercussion category CASTANO-CANO, Davinson - GROSSARD, Mathieu - HUBERT, Arnaud. Resonant sensors for multi-axis force and torque estimation in collaborative robotics. In Mechatronics. ISSN 0957-4158, 2022, vol. 82, art. no. 102703, pp. 1-14.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title Evaluation of foil transducers and their use in tactile sensors Author info Jaromír Volf, Daniel Novák ... [et al.] Author Volf Jaromír 1954- (25%)
Co-authors Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Novák Viktor 1982- (25%)
Papežová Stanislava (25%)
Source document Measurement : Journal of the International Measurement Confederation. Vol. 136, (2019), pp. 573-578. - Oxford : Elsevier Science Ltd., 2019 Keywords conductive ink tactile sensors pressure distribution Form. Descr. články - journal articles Language English Country Great Britian systematics 62 Annotation The article presents end evaluates foil transducers, namely conductive rubber and conductive ink, and their use in the pressure distribution measurement system Plantograf. The ability of both materials to act as transducer between pressure and electrical quantities is assessed by means of measurement on a robotized workspace; two electrode types and various ink layer thicknesses are studied. Basing on the measurements, we present graphically the dependency of the electrical resistance of the materials on the applied pressure. Although both materials proved their ability to act as a transducer in a planar sensor, they both exhibit some limitations. In case of rubber it is limited pressure range up to ca. 1 400 kPa and significant hysteresis of the material. The main limiting factor with conductive ink is its poor adherence to the electrodes, which poses important problem for its practical use, although this material evinces better transfer characteristics, particularly in the configuration with 7 μm ink layer and LD type electrode. URL Link na plný text Public work category ADC No. of Archival Copy 44776 Repercussion category AFRICA, Aaron Don M. - BARRIENTO, Josephine F. - BEA, Anna Mae T. - DELOSREYES, Chris Vincent F. - MALLARI, Maveric P. Development of an alternative source of power in an octopus ride using kinetic energy. In ARPN : journal of engineering and applied sciences. ISSN 1819-6608, 2019, vol. 14, no. 22, pp. 3804-3814.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
unrecognised
Title Plantograf V18 - new construction and properties Author info Petr Koder ... [et al.] Author Koder Petr (15%)
Co-authors Novák Viktor 1982- (20%)
Ryzhenko Volodymyr (15%)
Hrubý Dušan (15%)
Volf Jaromír 1954- (20%)
Novák Daniel 1952- (15%) UMBFP07 - Katedra techniky a technológií
Source document Agronomy Research. Vol. 16, special no. 1 (2018), pp. 1085-1094. - Tartu : Estonian University of Life Sciences, 2018 Keywords transducer pressure sensors Language English Country Estonia systematics 62 Annotation Článok opisuje plošný prevodník tlaku Plantograf V18. Tento prístroj prevádza vyvinutý tlak na podložku na elektrický signál a umožňuje následnú grafickú prezentáciu nameraných dát. Nová verzia V18 tohto prevodníku prichádza s významnými zlepšeniami a modifikáciami, ktoré sú podrobnejšie diskutované v článku. Prístroj má praktické využitie vo všetkých oblastiach, kde je potrebné určiť plošné rozloženie tlaku medzi objektom a podložkou, napr. v medicíne alebo v automobilovom priemysle. Článok podrobne opisuje elektronický ovládací systém prevodníku, a ďalej zatiaľ nepublikované merania s 3,5 mm elektródami. The article describes Plantograf V18, a planar tactile transducer, which converts the applied pressure into electric signal and enables a graphical presentation of the measured data; the new version V18 comes with some significant improvements and modifications. The device may be used everywhere where the pressure distribution between an object and surface is to be determined, e.g. in medicine or automotive industry. The article contains the detailed description of the transducer design and its electronic control circuits, as well as the yet unpublished measurements of pressure sensitivity with 3.5 mm electrodes URL Link na zdrojový dokument Link na plný text Public work category ADM No. of Archival Copy 42941 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised
Title Verification of mathematical model of pressure distribution in artificial knee joint Author info Viktor Novák ... [et al.] Author Novák Viktor 1982- (25%)
Co-authors Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Volf Jaromír 1954- (25%)
Ryzhenko Volodymyr (25%)
Source document Agronomy Research. Vol. 15, no. 4 (2017), pp. 1716-1724. - Tartu : Estonian University of Life Sciences, 2017 Keywords knee arthroplasty pressure distribution tibial plateau Language English Country Estonia systematics 62 URL Link na zdrojový dokument Public work category ADM No. of Archival Copy 41511 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised
Title Measurement of weld joint parameters and their mathematical modelling Author info D. Novák ... [et al.] Author Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Co-authors Kvasnová Petra 1978- (25%) UMBFP07 - Katedra techniky a technológií
Volf Jaromír 1954- (25%)
Novák Viktor 1982- (25%)
Source document Agronomy Research. Vol. 15, special no. 1 (2017), pp. 1127-1140. - Tartu : Estonian University of Life Sciences, 2017 Keywords steel matematické modelovanie - mathematical modeling - mathematical modelling Language English Country Lotysh systematics 53 Annotation © 2017, Eesti Pollumajandusulikool. All rights reserved. The article deals with verifying of weld quality of weld joints created by laser beam welding technology, primarily in agricultural components such as reel screws. We presents both metallographic check of the weld structure using electron microscopy, RTG-microanalysis and micro hardness measurement as well as used mathematical models of the welding process and respective weld joints geometry. First the laser beam welding technology and concerned agricultural components are introduced. Further we specify individual steel types as well as laser types and we define specific welding parameters used in our measurements. We selected several samples of weld joints, which are further examined them in detail using optical microscopy, micro hardness measurements and RTG microanalysis. We further determined the weld shape, measured dimensions of individual weld joints as well as we checked the weld joints structure. We further introduced a mathematical model based on the program ANSYS. The model can simulate temperatures, speed field and tensions within the weld joint, basing on known thermal conductivity of the base material and specified welding conditions. Using the model, we can predict the shape of the weld and the temperatures within the material. Finally, individual welding parameters and obtained weld joint samples are briefly discussed and the applicability of the model is evaluated. Public work category ADM No. of Archival Copy 40179 Repercussion category OČKAJOVÁ, Alena - KUČERKA, Martin - KMINIAK, Richard - KRIŠŤÁK, Ľuboš - IGAZ, Rastislav - RÉH, Roman. Occupational exposure to dust produced when milling thermally modified wood. In International journal of environmental research and public health. ISSN 1661-7827, 2020, vol. 17, no. 5, pp. 1-14.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised
Title Measurement of pressure distribution in knee joint replacement Author info J. Volf ... [et al.] Author Volf Jaromír 1954- (25%)
Co-authors Novák Viktor 1982- (25%)
Ryzhenko V. (25%)
Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Source document Trends in agricultural engineering : proceedings of 6th international conference, Praha, September 7th-9th 2016. S. 685-689. - Praha : Česká zemědělská univerzita v Praze, 2016 / Adamovský R. ; Aldoshin N. ; Trends in agricultural engineering Keywords sensors transducer pressure distribution biomechanics knee joint replacement Language English Country Czech Republic Annotation The paper describes the measurement procedure of pressure distribution in knee arthroplasty and it verifies the accuracy of mathematical model of the pressure in the artificial joint. First it briefly presents the composition of the artificial joint. Then it describes in detail the measurement procedure, i.e. the measuring machine, which simulates a human step cycle, and the layout and type of used sensors. Finally, the measured pressure data are compared with those from the mathematical model and its accuracy is evaluated. Public work category AFC No. of Archival Copy 37056 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ unrecognised
Title Optimization of vehicles’ trajectories by means of interpolation and approximation methods Author info Daniel Novák ... [et al.] Author Novák Daniel 1952- (30%) UMBFP07 - Katedra techniky a technológií
Co-authors Pavlovkin Ján 1955- (30%) UMBFP07 - Katedra techniky a technológií
Volf Jaromír 1954- (20%)
Novák Viktor 1982- (20%)
Source document Agronomy Research. Vol. 14, no. 3 (2016), pp. 862-872. - Tartu : Estonian University of Life Sciences, 2016 Keywords dopravné prostriedky - means of transportation optimálna trajektória interpolačné krivky aproximačné krivky trajectory optimization interpolation curves approximation curves Language English Country Spain systematics 62 Annotation Potřeba optimalizovat pohyb dopravních prostředků mezi překážkami je stále aktuální, přičemž není podstatné, zda jsou těmito prostředky mobilní roboti, vysokozdvižné vozíky, či silniční vozidla. Přitom je důležitá nejen bezpečnost míjení překážek, ale i energetická bilance, tedy energie vynaložená na pohyb dopravních prostředků a změny jeho směru. Tento článek předkládá matematický přístup k řešení uvedeného problému prostřednictvím interpolačních a aproximačních křivek. The need to optimize the trajectory of vehicles is still highly topical, regardless weather the means of transport are robots, forklifts or road vehicles. It is not only important the safety by passing obstacles, but also the energy balance, i.e. the energy expended on the movement of the vehicle and on the change of its direction. This paper presents a mathematical approach to solving this problem through interpolation and approximation curves Public work category ADM No. of Archival Copy 36104 Repercussion category ZHUKOV, Illia Borisovich - LAZAREV, Eugenii Alekseevich. Procedure of selecting optimum capacity and voltage for an on-board electric power supply system accumulators. In Indian journal of science and technology. ISSN 0974-6846, 2016, vol. 9, no. 39, pp.
KOŽÍŠEK, František - VRANA, Ivan. Business process modelling languages. In Agris on-line papers in economics and informatics. ISSN 1804-1930, 2017, vol. 9, no. 3, pp. 39-49.
KVASNOVÁ, Petra - ŽÁČOK, Ľubomír - KVASNA, Ľuboš. Engineering companies support combining student teaching with practice. In Edukacja humanistyczna : półrocznik myśli społeczno-pedagogicznej. ISSN 1507-4943, 2018, roč. 39, č. 2, s. 143-148.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised
Title Measurement of pressure converter with conductive ink Author info V. Novák ... [et al.] Author Novák Viktor 1982- (25%)
Co-authors Volf Jaromír 1954- (25%)
Novák Daniel 1952- (25%) UMBFP07 - Katedra techniky a technológií
Ryzhenko V. (25%)
Source document Trends in agricultural engineering : proceedings of 6th international conference, Praha, September 7th-9th 2016. S. 438-441. - Praha : Česká zemědělská univerzita v Praze, 2016 / Adamovský R. ; Aldoshin N. ; Trends in agricultural engineering Keywords conductive ink tactile sensors electrodes pressure converters Language English Country Czech Republic systematics 621.3 Annotation The paper presents characteristics and measurement process of conductive ink of type DZT-3K, acting as a converter of pressure into electrical signal. It mentions basic properties of the ink, including the explanation of the principle of function. Further it describes the measurement process with tactile sensors with circular electrodes of type PD. It studies the dependency of electrical resistance of the ink on the applied pressure. Various setups with different ink layer thicknesses are compared and their suitability to act as pressure converter is finally discussed Public work category AFC No. of Archival Copy 37049 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ unrecognised