Prohlížení Publikační činnost ČVUT dle názvu
Zobrazují se záznamy 209-228 z 1312
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D. Hrakova, P. Ripka, A. Laposa, D. Novotny, J. Kroutil, V. Povolný, O. Kaman, P. Veverka
(Elsevier, 2022)Non-planar fluxgate sensors measuring the magnetic fields in the uT range are required for electric current, position, and torque transducers. We report the first sensor based on an inkjet-printed 17 mm diameter ring core. ... -
Damage model for plastic materials at finite strains
(Akademie Verlag, 2019)We introduce a model for elastoplasticity at finite strains coupled with damage. The internal energy of the deformed elastoplastic body depends on the deformation, the plastic strain, and the unidirectional isotropic damage. ... -
DC current sensor using switching-mode excited in-situ current transformer
(Elsevier, 2020)DC current component in the power grid may cause gross measurement errors and lead to overheating of power transformers. We have previously developed method how to measure DC current using fluxgate effect in existing current ... -
DC-Compensated Current Transformer
(Molecular Diversity Preservation International, 2016)Instrument current transformers (CTs) measure AC currents. The DC component in the measured current can saturate the transformer and cause gross error. We use fluxgate detection and digital feedback compensation of the DC ... -
Decentralizovaná energetika, cesta ke svobodě nebo závislosti
(AF Power agency, 2018)Dožívání konvenčních, rozmach decentrálních a obnovitelných zdrojů a zhoršující se čitelnost spotřebního chování malých odběratelů může znesnadnit (a tedy zdražit) nasazování centrálních podpůrných služeb a řízení stability ... -
Deep learning-driven scheduling algorithm for a single machine problem minimizing the total tardiness
(Elsevier B.V., 2023)In this paper, we investigate the use of the deep learning method for solving a well-known NP-hard single machine scheduling problem with the objective of minimizing the total tardiness. We propose a deep neural network ... -
Degradační procesy membránových stěn při spalování biomasy
(Západočeská univerzita v Plzni, 2022)Životnost spodních částí membránových stěn je ovlivněna provozními parametry a konstrukčním provedením kotlů ale především použitým palivem. Při spalování lesní štěpky, slámy, kukuřice a tuhých alternativních paliv, ... -
Degree Conditions Forcing Directed Cycles
(Oxford University Press, 2023)Caccetta-Haggkvist conjecture is a longstanding open problem on degree conditions that force an oriented graph to contain a directed cycle of a bounded length. Motivated by this conjecture, Kelly, Kuhn, and Osthus initiated ... -
Demagnetization of Current Transformers Using PWM Burden
(IEEE, 2015)Current transformers (CTs) show large errors when they are magnetized by dc current. This error can be reduced after proper demagnetization. One of the methods to demagnetize the CT is to increase the core flux by increasing ... -
Demonstration of a Hybrid FSO/VLC Link for the Last Mile and Last Meter Networks
(IEEE, 2019)In this paper, a hybrid free-space optical and visible light communication (FSO/VLC) system was experimentally demonstrated as a solution to overcome the last mile and last meter access networks bandwidth bottleneck. We ... -
Derivations of Leavitt path algebras
(Academic Press, 2019)In this paper, we describe the K-module HH1(LK(Γ)) of outer derivations of the Leavitt path algebra LK(Γ) of a row-finite graph Γ with coefficients in an associative commutative ring K with unit. We explicitly describe a ... -
Design and modeling of a linear speed sensor with a flat type structure and air coils
(Elsevier, 2020)This paper presents the design and modeling of a linear eddy current speed sensor with a flat type structure and an air coil configuration. The theory of the eddy current speed sensor is based on utilizing the speed component ... -
Design and Modeling of An Axisymmetric Eddy Current Sensor for Speed Measurement of Nonmagnetic Rods
(Elsevier, 2022)This paper presents the design and modeling of an eddy current speed sensor for nonmagnetic moving rods with an axisymmetric configuration. The sensor consists of two antiserially connected excitation coils and one pick ... -
Design and Optimization of an Active OTA-C Filter Based on STOHE Algorithm
(University of West Bohemia, 2019)With increasing demands on design and optimization of analog circuits in real applications, a limited number of algorithms for practical use have been presented. The drawbacks of already existing standard algorithms are ... -
Design and Optimization of an Eddy Current Speed Sensor for Rotating Rods
(IEEE Sensors Council, 2020)This paper presents the design and optimization of a novel eddy current speed sensor for rotating rods and cylindrical shafts. The sensor consists of one excitation coil and two pick-up coils. All coils are stationary; we ... -
Design of a flat-type magnetic position sensor using a finite-difference method
(The Institution of Engineering and Technology (IET), 2020)This study presents an analysis and the design of a new flat-type position sensor with an external armature. One excitation coil and two antiserially connected pickup coils are used in the stationary part. Solid iron ... -
Design of an Emergency Energy System for a City Assisted by Renewable Energy, Case Study: Latakia, Syria
(Multidisciplinary Digital Publishing Institute (MDPI AG), 2018)Electrical energy is one of the most important daily needs. Shortage of energy can be very dangerous for any society. This can affect the standard of living and quality of life of the people and even endanger the lives of ... -
Design of ceiling concrete structures with regards to deflection
(Trans Tech Publications Ltd., 2016)The standard EN 1992-1-1 [1] provides two approaches to limiting deflection of ceiling structures. One approach is limitation of bending slenderness using simple formulas. The second approach is the direct calculation of ... -
Design of High Voltage Transformer for Use in Electrostatic Precipitator
(Czech Technical University in Prague, 2018)This paper presents a special case of the design of a high voltage transformer, whose short-circuit reactance is known beforehand. A rather simple program based on the physical relations of parameters and dimensions is ... -
Design of Nutrient Enriched Cement Paste with a Superabsorbent Polymer for the Bio-based Self-healing Concrete Development
(Trans Tech Publications, 2019)The application of self-healing concrete for durability enhancement has become a widely studied topic in recent decades. This paper focuses on addition of a superabsorbent polymer (SAP) to bio-based self-healing concrete ...