Kybernetika pro materiálové vědy
Browse by
Recent Submissions
-
Measurement of thermal depolarization effects in piezoelectric coefficients of soft PZT ceramics via the frequency and direct methods
(Elsevier Ltd., 2016-09-01)Depolarization at high temperatures around the Curie point constitutes an important yet difficultly measurable material property of piezoelectric (PZT) ceramics. The common vibrometric technique (d33 meters) is not suitable ... -
Comparison of Methods for the Measurement of Piezoelectric Coefficients
(IEEE, 2013-04-03)The charge constant of piezoelectric material is one of the crucial constant values. At the present time, the measurement of this value is mostly realized by means of three techniques: the frequency method, the laser ... -
A Heuristic Algorithm to Compute Multimodal Criterial Function Weights for Demand Management in Residential Areas
(MDPI, 2017-07-20)We present the conceptual design of a collective control scheme for appliances within a smart home. Based on the relevant energy acquisition procedures, three appliance groups are defined, modeled, and completed with an ... -
Optimal Scheduling of Domestic Appliances via MILP
(MDPI AG, 2015-01-08)This paper analyzes a consumption scheduling mechanism for domestic appliances within a home area network. The aim of the proposed scheduling is to minimize the total energy price paid by the consumer and to reduce power ... -
Solvability of a close to symmetric system of difference equations
(Department of Mathematics, Texas State University, 2016-06-27)The problem of solvability of a close to symmetric product-type system of di erence equations of second order is investigated. Some recent results in the literature are extended. -
Personal Navigation Algorithms Based on Wireless Networks and Inertial Sensors
(FEI STU Bratislava, 2014-06-30)The work aims at a development of positioning algorithm suitable for low-cost indoor or urban pedestrian navigation application. The sensor fusion was applied to increase the localization accuracy. Due to required low ... -
Calibration and evaluation of parameters in a 3D proximity rotating scanner
(Kaunas University of Technology, 2015-02-13)This paper presents the procedures enabling the calibration and evaluation of intrinsic parameters in a Velodyne multi-beam laser scanner. As the device will be utilized in field robotics applications, both the evaluated ... -
Remote-Controlled Robotic Platform for Electrochemical Determination of Water Contaminated by Heavy Metal Ions
(ESG, 2015-04-01)The aim of our study was to equip a remote-controlled robotic platform (ORPHEUS-HOPE) with electrochemical system for fast detection of heavy metal ions in water. The platform contains two cameras – one pan/tilt color ... -
Conditional oscillation of half-linear Euler-type dynamic equations on time scales
(University of Szeged, 2015-02-18)We investigate second-order half-linear Euler-type dynamic equations on time scales with positive periodic coefficients. We show that these equations are conditionally oscillatory, i.e., there exists a sharp borderline (a ... -
Asymptotic integration of fractional differential equations with integrodifferential right-hand side
(Vilnius Gediminas Technical University, 2015-07-20)In this paper we deal with the problem of asymptotic integration of a class of fractional differential equations of the Caputo type. The left-hand side of such type of equation is the Caputo derivative of the fractional ... -
Developing an Unreal Engine 4-Based Vehicle Driving Simulator Applicable in Driver Behavior Analysis-A Technical Perspective
(MDPI, 2021-04-01)Vehicle safety remains a topic of major interest, and diverse assistance systems are implemented that focus primarily on analyzing the immediate vicinity of the car and the driver's control inputs. In this paper, by contrast, ... -
Synchronous Reluctance Motor Parameter and State Estimation Using Extended Kalman Filter and Current Derivative Measurement
(IEEE, 2021-03-01)The synchronous reluctance motor is becoming a very attractive alternative to the AC induction machine. This is due to the lack of rare-earth metals in their construction and a higher efficiency, which was brought about ... -
Non-Linear Model Predictive Control of Cabin Temperature and Air Quality in Fully Electric Vehicles
(IEEE, 2021-01-25)This article describes an application of Non-linear Model Predictive Control algorithms on energy efficient control of fully electric vehicle cabin temperature and air quality. Since fully electric vehicles can not utilize ... -
A New Method to Perform Direct Efficiency Measurement and Power Flow Analysis in Vibration Energy Harvesters
(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 ... -
An algebraic approach for the motion control of the two-mass system
(IEEE, 2020-10-18)In this paper, an algebraic based approach for motion control of a two-mass system is presented. Algebraic menas, that the structure of the presented controller is found as the solution of the polynomial equation. The ... -
Voltage disturbance observer for dual three-phase PMSM system
(IEEE, 2020-10-18)In this paper, a new compensation strategy design of the dead-time effects and other VSI non-linearities is presented for a dual three-phase PMSM. The strategy is based on an estimation of compensation voltages for each ... -
The RoScan Thermal 3D Body Scanning System: Medical Applicability and Benefits for Unobtrusive Sensing and Objective Diagnosis
(MDPI, 2020-11-20)The RoScan is a novel, high-accuracy multispectral surface scanning system producing colored 3D models that include a thermal layer. (1) Background: at present, medicine still exhibits a lack of objective diagnostic methods. ... -
Hybrid Model Predictive Control for Fully Electric Vehicle Thermal Management System Optimal Mode Selection
(IEEE, 2020-10-18)Vehicle thermal management systems of Fully Electric Vehicles bring increased demands on control algorithms to operate the vehicle efficiently. Especially, if there are multiple heat sources and sinks (cabin, batteries, ... -
Model-based Electronic Expansion Valve Feed-forward Control for Electrified Automotive Vapor Compression Refrigeration System
(IEEE, 2020-10-18)This paper presents a model-based method of electronic expansion valve feed-forward control for the automotive vapor compression refrigeration system. The model of the refrigeration system was assembled and the equation ... -
Speed Control of PMSM with Finite Control Set Model Predictive Control Using General-purpose Computing on GPU
(IEEE, 2020-10-18)In this article, novel approach in implementing finite control set predictive control is introduced. Algorithm is implemented using general-purpose computing on graphics processing unit. Predictions are computed using ...
RSS 1.0