• A New Method to Perform Direct Efficiency Measurement and Power Flow Analysis in Vibration Energy Harvesters 

  Kunz, Jan; Fialka, Jiří; Pikula, Stanislav; Beneš, Petr; Krejčí, Jakub; Klusáček, Stanislav; Havránek, Zdeněk (MDPI, 2021-03-30)

  Measuring the efficiency of piezo energy harvesters (PEHs) according to the definition constitutes a challenging task. The power consumption is often established in a simplified manner, by ignoring the mechanical losses ...

• Solvability of a class of hyperbolic-cosine-type difference equations 

  Stevič, Stevo; Iričanin, Bratislav; Kosmala, Witold; Šmarda, Zdeněk (Springer Nature, 2020-10-07)

  We describe a method for constructing one of the basic classes of solvable hyperbolic-cosine-type difference equations, generalizing a known difference equation by Laplace in a natural way.

• Phenotypic and genomic analysis of isopropanol and 1,3-propanediol producer Clostridium diolis DSM 15410 

  Sedlář, Karel; Vasylkivska, Maryna; Musilová, Jana; Branská, Barbora; Provazník, Ivo; Patáková, Petra (Elsevier, 2020-11-07)

  Clostridium diolis DSM 15410 is a type strain of solventogenic clostridium capable of conducting isopropanol-butanol-ethanol fermentation. By studying its growth on different carbohydrates, we verified its ability to utilize ...

• An Active Resistor With a Lower Sensitivity to Process Variations, and its Application in Current Reference 

  Kledrowetz, Vilém; Háze, Jiří; Prokop, Roman; Fujcik, Lukáš (IEEE, 2020-10-29)

  A novel active resistor circuit offering less sensitivity to process and temperature variations without any extra trimming is proposed. The circuit consists of two accurately matched, high resistance polysilicon (hripoly) ...

• Behaviour of Vascular Smooth Muscle Cells on Amine Plasma-Coated Materials with Various Chemical Structures and Morphologies 

  Němčáková, Ivana; Blahová, Lucie; Ryšánek, Petr; Blanquer, Andreu; Bačáková, Lucie; Zajíčková, Lenka (MDPI, 2020-12-01)

  Amine-coated biodegradable materials based on synthetic polymers have a great potential for tissue remodeling and regeneration because of their excellent processability and bioactivity. In the present study, we have ...

• Gradient-Index-Based Frequency-Coded Retroreflective Lenses for mm-Wave Indoor Localization 

  Kaděra, Petr; Jiménez-Sáez, Alejandro; Burmeister, Tom; Láčík, Jaroslav; Schüßler, Martin; Jakoby, Rolf (IEEE, 2020-11-23)

  This article introduces retroreflective lenses for millimeter-wave radio-frequency indoor localization. A three-dimensional (3D) gradient-index Luneburg lens is employed to increase radar cross section (RCS) of photonic-crystal ...

• Transimpedance type MOS-C bandpass analog filter core circuits 

  Cevik, Ismail; Metin, Bilgin; Herencsár, Norbert; Cicekoglu, Oguzhan; Kuntman, Hakan (Springer Nature, 2021-02-10)

  In this paper, we present six area-efficient transimpedance type second-order analog filters. There are many applications where the available signal is current, however the necessary signal for further processing is voltage ...

• Tracking Carotid Artery Wall Motion Using an Unscented Kalman Filter and Data Fusion 

  Dorazil, Jan; Repp, Rene; Kropfreiter, Thomas; Prüller, Richard; Říha, Kamil; Hlawatsch, Franz (IEEE, 2020-12-01)

  Analyzing the motion of the common carotid artery (CCA) wall yields effective indicators for atherosclerosis. In this work, we propose a state-space model and a tracking method for estimating the time-varying CCA wall ...

• All Pinched Hysteresis Loops Generated by (alpha, beta) Elements: in What Coordinates They May be Observable 

  Biolek, Zdeněk; Biolek, Dalibor; Biolková, Viera; Kolka, Zdeněk (IEEE, 2020-12-01)

  Two existing theorems for studying pinched hysteresis loops generated by nonlinear higher-order elements from Chua's table are reformulated, namely the generalized homothety theorem and the associated Loop Location Rule, ...

• Voltage-Mode Elliptic Band-Pass Filter Based on Multiple-Input Transconductor 

  Prommee, Pipat; KARAWANICH, KHUNANON; Khateb, Fabian; Kulej, Tomasz (IEEE, 2021-03-08)

  This paper presents a new voltage-mode elliptic band-pass filter based on a multiple-input transconductor (MI-OTA). The MI-OTA's structure employs the multiple-input MOS transistor technique that simply enables to increase ...

• Stabilita elektrizační soustavy 

  Máslo, Karel (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2021-02-26)

  Publikace se zaměřuje na stabilitu elektrizační soustavy a její dílčí problémy – úhlovou, frekvenční a napěťovou stabilitu. Tato témata jsou popsána teoreticky i pomocí příkladů pro program MODES.

• Fully Automated DCNN-Based Thermal Images Annotation Using Neural Network Pretrained on RGB Data 

  Ligocki, Adam; Jelínek, Aleš; Žalud, Luděk; Rahtu, Esa (MDPI, 2021-02-24)

  One of the biggest challenges of training deep neural network is the need for massive data annotation. To train the neural network for object detection, millions of annotated training images are required. However, currently, ...

• Poling procedures and piezoelectric response of (Ba0.85Ca0.15Zr0.1T0.9)O-3 ceramics 

  Bijalwan, Vijay; Sokolov, Ilya; Tofel, Pavel (Taylor & Francis, 2020-12-23)

  The goal of the current report was to find the optimal poling conditions: poling field, poling time and poling temperature for lead-free (Ba0.85Ca0.15Zr0.1T0.9)O-3 ceramic. It has been noticed that the low poling field (< ...

• Current–Mode Fractional–Order Electronically Controllable Integrator Design 

  Langhammer, Lukáš; Šotner, Roman; Dvořák, Jan; Sládok, Ondřej; Jeřábek, Jan; Bertsias, Panagiotis (IEEE, 2020-11-25)

  This contribution presents a design of a current–mode fractional–order electronically controllable integrator which can be used as a building block for a design of fractional–order (FO) circuits. The design is based on a ...

• Wavelet Co-movement Significance Testing with Respect to Gaussian White Noise Background 

  Poměnková, Jitka; Klejmová, Eva; Malach, Tobiáš (Helenic Military Academy, 2018-01-09)

  The paper deals with significance testing of time series co-movement measured via time-frequency approach. We use the wavelet analysis for estimation of the co/cross-spectra for the co-movement analysis. This technique is ...

• (V)TEAM for SPICE Simulation of Memristive Devices With Improved Numerical Performance 

  Biolek, Dalibor; Kolka, Zdeněk; Biolková, Viera; Biolek, Zdeněk; Kvatinsky, Shahar (IEEE, 2021-02-25)

  The paper introduces a set of models of memristive devices for a reliable, accurate and fast analysis of large networks in the SPICE (Simulation Program with Integrated Circuit Emphasis) environment. The modeling starts ...

• New experimental research stand SVICKA neutron field analysis using neutron activation detector technique 

  Varmuža, Jan; Katovský, Karel; Zeman, Miroslav; Šťastný, Ondřej; Haysak, Ivan; Holomb, Robert (EDP Sciences - France, 2018-04-18)

  Knowledge of neutron energy spectra is very important because neutrons with various energies have a different material impact or a biological tissue impact. This paper presents basic results of the neutron flux distribution ...

• Experimental investigation and Monte Carlo simulations of radionuclide production inside the Uranium spallation target QUINTA irradiated with a 660-MeV proton beam 

  Tichý, Pavel; Adam, Jindřich; A.A., Baldin; Chudoba, Petr; Furman, W.; Gustov, S.A.; Khushvaktov, Jurabek; Marin, I.; Solnyshkin, Alexander A.; Suchopár, Martin; Svoboda, Josef; Tyutyunnikov, S.; Vespalec, Radek; Vrzalová, Jitka; Wagner, Vladimír; Závorka, Lukáš; Zeman, Miroslav (EDP Sciences, 2019-04-03)

  The accelerator-Driven-System (ADS) is very important to study the neutron field and radionuclide production inside simple-geometry uranium subcritical setups irradiated with high energy particle beams. A subcritical setup ...

• Np-237 transmutation efficiency dependence on beam particle, energy and sample position in QUINTA setup 

  Kilim, S.; Strugalska-Gola, E.; Szuta, M.; Bielewicz, Marcin; Tyutyunnikov, S.; Adam, Jindřich; Stegailov, V.I. (EDP Sciences, 2019-04-03)

  Np-237 samples were irradiated with spallation neutrons produced at the ADS setup QUINTA. Six experiments were carried out at the JINR, in Dubna – one in carbon (C6+), three in deuteron, and two in proton beams. The energy ...

• Fractal Dimension Analysis of Three-Point Bending Concrete Test Specimens 

  Sobek, Jakub; Frantík, Petr; Trčka, Tomáš; Lehký, David (EDP Sciences, 2020-10-05)

  The paper deals with the analysis of the fractal dimension of fracture surfaces of concrete specimens tested in a three-point bending configuration. Fifteen representative specimens were chosen out of a bigger set for the ...

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