Periodica Polytechnica archív cikkek
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Derivation of Equations for Conductor and Sag Curves of an Overhead Line Based on a Given Catenary Constant
(Budapest University of Technology and Economics, 2014)When the spans of an overhead line are large (for instance over 400 metres) the conductor curve cannot be considered as a parabola, since in that case the difference in comparison to the catenary cannot be neglected. At ... -
LDV measurements of Newtonian and non-Newtonian open-surface swirling flow in a hydrodynamic mixer
(Budapest University of Technology and Economics, 2013)The aim of this paper is to study the cyclone-like flow inside a hydrodynamic mixer experimentally, with a special emphasis on the differences in the flow field in the case of Newtonian and non-Newtonian fluids. The mixer ... -
Corner Detection and Classification of Simple Objects in Low-Depth Resolution Range Images
(Budapest University of Technology and Economics, 2013)This paper deals with corner detection of simple geometric objects in quantized range images. Low depth resolution and noise introduce challenges in edge and corner detection. Corner detection and classification is based ... -
Nonholonomic Path Planning for a Point Robot with Car-Like Kinematics
(Budapest University of Technology and Economics, 2013)A new approach of nonholonomic path planning for car-like robots is presented. The main idea is similar to many existing approaches which obtain a path in two phases. It is familiar in nonholonomic planning that at first ... -
Compensation of Analog-to-Digital Converter Nonlinearities using Dither
(Budapest University of Technology and Economics, 2013)Analog-digital converters are inherently nonlinear. Conventional A/D conversion allows no real remedy afterwards. However, an alternative is to increase the available information by observing the transition instants, even ... -
Communication Time Estimation in High Level Synthesis
(Budapest University of Technology and Economics, 2013)The high level synthesis (HLS) tools may result in a multiprocessing structure, where the time demand of the interchip data transfer (briefly the communication) between the processing units (hardware or software) is ... -
Formation Control of Quadrotor Helicopters with Guaranteed Collision Avoidance via Safe Path Planning
(Budapest University of Technology and Economics, 2012)In this article we propose a hierarchical control structure for multi-agent systems. The main objective is to perform formation change manoeuvres, with guaranteed safe distance between each two vehicles throughout the whole ... -
Stable Object Grasping With Dextrous Hand In Three-Dimension
(Budapest University of Technology and Economics, 1999)This paper considers a grasp planning scheme for dextrous hands. The grasp is assumed to be a preciseone, which means that only the fingertips of the hand are in contact. The most important algorithm ofthe grasp planner ... -
Replaying Execution Trace Models for Dynamic Modeling Languages
(Budapest University of Technology and Economics, 2012)Back-end analysis tools aiming to carry out model-based verification and validation of dynamic behavioral models frequently produce sequences of simulation steps (called execution traces) as their output. In order to support ... -
Basins of attraction in a harmonically excited spherical bubble model
(Budapest University of Technology and Economics, 2012)Basins of the periodic attractors of a harmonically excited single spherical gas/vapour bubble were examined numerically. As cavitation occurs in the low pressure level regions in engineering applications, the ambient ... -
Thermal simulation of a pin on a rotating cylinder jacket system
(Budapest University of Technology and Economics, 2012)In this paper specimen level measurements and finite element simulations are introduced in order to study the thermal behaviour of a pin and wheel sliding contact configuration. The pin-like specimen is processed from cast ... -
Time-optimal computed-torque control in contact transitions
(Budapest University of Technology and Economics, 2012)The simple mechanical model of an approach-and-touch control procedure is discussed. The aim is to find an appropriate control strategy to approach the target surface, handle the contact transitions and apply the desired ... -
A Model Predictive Navigation Approach Considering Mobile Robot Shape and Dynamics
(Budapest University of Technology and Economics, 2012)Most mobile robot navigation approaches assume the robot being point-like or consider only its bounding circle while looking for a collision-free path to a given goal position. A well-known method called the Dynamic Window ... -
Data fusion and primary image processing for aircraft identification
(Budapest University of Technology and Economics, 2012)The primary scope of this study lays on system technique solutions of collecting data required for the identification of an aircraft’s nonlinear dynamic model. It is assumed that the aircraft has no inbuilt navigational ... -
Natural conditions in the Carpathian Basin of the Middle Ages
(Budapest University of Technology and Economics, 2007)The analysis of natural conditions is a new field in Hungarian medieval research. This field could only come into existence with the spread of new sources of research, and with the need of drawing the most realistic picture ... -
Feasibility of Real-time Available Transfer Capacity Calculations with PSSE
(Budapest University of Technology and Economics, 2010)A new procedure is reviewed in this article that offers the possibility of the precision enhancement of intra-day network capacity calculations. The main advantages of the new procedure are the calculation capability of ... -
Integral Calculus Usage for Conductor Length Determination on the Basis of Known Maximal Sag of a Parabola
(Budapest University of Technology and Economics, 2012)This paper shows a mathematic solution for calculation of conductor length using integral calculus on a parabola. The presented method can be used for spans approximately up to 400 metres. In that case the catenary may be ... -
Experimental and numerical study on cavitating vortex shedding behind a square cylinder
(Budapest University of Technology and Economics, 2009)Comparison between experimental and numerical results of the cavitating vortex shedding behind a square cylinder is presented. The side length of the experimental and numerical model was 25 mm and 20 mm, respectively. The ... -
Information System for Road Infrastructure Booking
(Budapest University of Technology and Economics, 2011)Booking of road infrastructure is a tool for management of„stresses” between traffic demand and available infrastructurecapacity (supply). In this course entitlement to use of certainnetwork elements (lane, zone, and parking ... -
How can corporate competence be measured?
(Budapest University of Technology and Economics, 2010)This paper is about the phenomenon that competence assets never manifest in their whole magnitude and worth. Due to this fact, we do not have complete and fully reliable information about their real magnitude, either in ...
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