No (1061)
Used filters
(3)
Number of found documents:
1061
Content Gap Analysis Of Current Cyber-Security Challenges Of Industrial Control Systems
Pospíšil, Ondřej
English
This paper deals with the analysis of current research papers dealing with cybersecurity in industrial control systems. The analysis is focused on terminology and deals with possible directions to follow in future research. The article also describes current literature on this issue and recommends some sources to obtain information. The summary provides possible directions to follow in cybersecurity research in ICS.
Keywords:
ICS; Industrial Control System; SCADA; security; Intrusion Detection System; Analysis
Available in a digital repository NRGL
Content Gap Analysis Of Current Cyber-Security Challenges Of Industrial Control Systems
This paper deals with the analysis of current research papers dealing with cybersecurity in industrial control systems. The analysis is focused on terminology and deals with possible directions to ...
Coexistence Of Lora And Wi-Fi In The 24 Ghz Band
Kaučiarik, Filip
English
This paper deals with the study of coexistence between LoRa and Wi-Fi systems in the non-licensed 2.4 GHz RF bands. An appropriate laboratory measurement workplace is realized to measure the performance of LoRa on physical (PHY) layer level in terms of packet error ratio (PER). The functionality of the proposed concept is verified by a set of experimental measurements, where different coexistence scenarios are considered.
Keywords:
LoRa; Wi-Fi; LPWAN; coexistence of wireless systems; RF measurements; PER
Available in a digital repository NRGL
Coexistence Of Lora And Wi-Fi In The 24 Ghz Band
This paper deals with the study of coexistence between LoRa and Wi-Fi systems in the non-licensed 2.4 GHz RF bands. An appropriate laboratory measurement workplace is realized to measure the ...
Online Database Of Bacterial Sequence And Melt Types
Františová, Zuzana
English
This paper presents an online database, which was created in cooperation with the Center of Molecular Biology and Gene Therapy, University Hospital Brno. This database contains a unique conversion key allowing comparison of sequencing and PCR (polymerase chain reaction data, which brings quick and reliable pathogenic bacteria typing at a fraction of the cost of sequencing techniques. The database is managed by a program that enables updates, editing, backups, data export and many other functions that can significantly speed up further data processing.
Keywords:
online database; typing of bacteria; sequence type; melt type; Minim Typing
Available in a digital repository NRGL
Online Database Of Bacterial Sequence And Melt Types
This paper presents an online database, which was created in cooperation with the Center of Molecular Biology and Gene Therapy, University Hospital Brno. This database contains a unique conversion key ...
Automated Human Recognition From Image Data
Dobiš, Lukáš
English
This paper describes an approach for automated human recognition by using convolutional neural networks (CNN) to perform facial analysis of persons face from image data. The predicted biometric indicators are following: age, gender, facial landmarks and facial expression. Network architectures with pretrained weights for each task are described. Script of interconnected CNN is explained and its results support further proposed expansion plans for live video inference.
Keywords:
deep learning; computer vision; convolution neural networks; face detection; age estimation; gender classification; emotion classification
Available in a digital repository NRGL
Automated Human Recognition From Image Data
This paper describes an approach for automated human recognition by using convolutional neural networks (CNN) to perform facial analysis of persons face from image data. The predicted biometric ...
Characterization Of Pvdf Nanofibers Created By The Electrospinning Method
Pisarenko, Tatiana
English
The work investigates structure and properties of composite fibers created by the electrospinning method for piezoapplications. Polyvinylidene fluoride (PVDF) was used as a precursor. As an electrospining parameter, the collector speed of 300 and 2000 rpm was selected, which significantly affects the properties of nanofibers. The structure of fibers was investigated by scanning electron microscopy (SEM) using focused ion beam (FIB). Morphology and piezoelectric domains was observed using piezoresponse force microscopy (PFM). Phase composition was identified using Raman spectroscopy and by Fourier-transform infrared spectroscopy (FTIR). Found results are essential for the design and construction of piezoelectric based structures.
Keywords:
PVDF; electrospinning; nanofibers; characterization; PFM; FTIR; SEM
Available in a digital repository NRGL
Characterization Of Pvdf Nanofibers Created By The Electrospinning Method
The work investigates structure and properties of composite fibers created by the electrospinning method for piezoapplications. Polyvinylidene fluoride (PVDF) was used as a precursor. As an ...
Comparison Of Promising Tdoa Geolocation Algorithms For Low-Power Wide-Area Network
Pospíšil, Jan
English
The paper deals with the comparison of promising end-device geolocation algorithms in a multipath propagation environment using the Time-Difference of Arrival (TDoA) information, that is incoming signal propagation delays from the end-device to the gateways. Comparison by simulation with added noise to outline the real conditions for a variety of selected computational algorithms. Namely comparison of the sensitivity of the algorithms to noise, the influence of the gateway count on the positioning error and calculation time requirements have been done.
Keywords:
TDoA; Fang; Chan; Spherical Interpolation; Least Square; Foy
Available in a digital repository NRGL
Comparison Of Promising Tdoa Geolocation Algorithms For Low-Power Wide-Area Network
The paper deals with the comparison of promising end-device geolocation algorithms in a multipath propagation environment using the Time-Difference of Arrival (TDoA) information, that is incoming ...
Graph Convolutional Neural Networks For Sentiment Analysis
Myska, Vojtech
English
Commonly used approaches based on deep learning for sentiment analysis task operating over data in Euclidean space. In contrast with them, this paper presents, a novel approach for sentiment analysis task based on a graph convolutional neural networks (GCNs) operating with data in Non-Euclidean space. Text data processed by the approach have to be converted to a graph structure. Our GCNs models have been trained on 25 000 data samples and evaluated 5 000 samples. The Yelp data set has been used. The experiment is focused on polarity sentiment analysis task. Nevertheless, a relatively small training data set has been used, our best model achieved 86.12% accuracy.
Keywords:
sentiment analysis; graph neural networks; deep learning
Available in a digital repository NRGL
Graph Convolutional Neural Networks For Sentiment Analysis
Commonly used approaches based on deep learning for sentiment analysis task operating over data in Euclidean space. In contrast with them, this paper presents, a novel approach for sentiment analysis ...
Interpreting Constraints In Finite Control Set Model Predictive Control
Kozubík, Michal
English
Aim of this paper is to show the possibilities of interpreting the constraints while using finite control set model predictive control. Paper explains the problem of the barrier functions and shows typical example. New possible candidates to barrier function are introduced in this article. All candidates are tested on the problem of the finite control set model predictive control of the PMSM drive control.
Keywords:
barrier functions; model predictive control; finite control set; permanent magnet synchronous motor
Available in a digital repository NRGL
Interpreting Constraints In Finite Control Set Model Predictive Control
Aim of this paper is to show the possibilities of interpreting the constraints while using finite control set model predictive control. Paper explains the problem of the barrier functions and shows ...
Overview Of Approaches To Multisensor Fusion As Used In Adas And Av
Zemčík, Tomáš
English
This paper briefly summarises the state-of-the-art in the field of approaches to heterogeneous multisensory fusion as in use in autonomous vehicles and advanced driver assistance systems (ADAS). It first describes the basic perception principles, goes over the used sensors and their properties. Various approaches to sensor fusion are then explained with particular focus on their effects on road traffic safety. Conclusions suggest the most perspective approaches and possible improvements.
Keywords:
autonomous vehicles; sensor fusion; ADAS; machine perception; road safety
Available in a digital repository NRGL
Overview Of Approaches To Multisensor Fusion As Used In Adas And Av
This paper briefly summarises the state-of-the-art in the field of approaches to heterogeneous multisensory fusion as in use in autonomous vehicles and advanced driver assistance systems (ADAS). It ...
Design Example Of Radial Active Magnetic Bearing For High-Speed Machine
Rura, David
English
Development of high-speed electrical machines reopened a door for further development in a field of magnetic bearing. Conventional ball bearings reached their limits and can’t bear such as high-speed in many modern turbo applications. Another way is to use air bearing which perform lower load capacity and stiffness. Hence, magnetic bearing seemed to be an advantageous solution in many application. The main cons of active magnetic bearing (AMB) are its space requirement and in case of active bearing also power amplifier and controller. In this paper the design of radial AMB for a motor 12 kW, 45000 rpm is calculated. Typically, analytical solution excludes side phenomenons and thus analytically modelled radial AMB is optimized numerically. This paper provides a full design of AMB including design geometry and performance properties.
Keywords:
radial magnetic bearing; radial AMB; design of radial AMB; high-speed
Available in a digital repository NRGL
Design Example Of Radial Active Magnetic Bearing For High-Speed Machine
Development of high-speed electrical machines reopened a door for further development in a field of magnetic bearing. Conventional ball bearings reached their limits and can’t bear such as high-speed ...
NRGL provides central access to information on grey literature produced in the Czech Republic in the fields of science, research and education. You can find more information about grey literature and NRGL at service web
Send your suggestions and comments to nusl@techlib.cz
Provider
Other bases