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Found 6515 publications

Computational complexity in logic testing

Jozsef Sziray

Publication Name: Ines 2010 14th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2010-07-26

Volume: Unknown

Issue: Unknown

Page Range: 97-102

Description:

The paper is concerned with analyzing and comparing two exact algorithms from the viewpoint of computational complexity. Both are for calculating fault-detection tests for digital circuits. The first one is the so-called composite justification, and the second is the D-algorithm. The analysis will be performed on combinational logic networks at the gate level. Here single and multiple stuck-at logic faults will be considered. As a result, it is pointed out that the composite justification requires significantly less computational step than the D-algorithm and its modifications. From this fact it has been concluded that possibly no other algorithm is available in this field with fewer computational steps. If it holds, then it follows directly that the test calculation problem is of exponential-time, and so are any other NP-complete problems. © 2010 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2010.5483865

A solution method for solving I/O and O/D tables

András Bakó Péter Földesi István Szuts

Publication Name: Ines 2010 14th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2010-07-26

Volume: Unknown

Issue: Unknown

Page Range: 195-198

Description:

The Origin-Destination (O/D) matrix is intensively used in long term traffic network planning. The matrix is used for forecasting the future traffic between the sections and for distributing the traffic. Several methods are known as a solution for this problem. In this paper it is shown that all these methods can be solved by the RAS algorithm. Furthermore we present the Input-Output table problem which also can be solved by this RAS method. © 2010 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2010.5483850

Comparative Analysis of Following Distances in Different Adaptive Cruise Control Systems at Steady Speeds

Balázs Horváth Dilshad Mohammed

Publication Name: World Electric Vehicle Journal

Publication Date: 2024-03-01

Volume: 15

Issue: 3

Page Range: Unknown

Description:

Adaptive Cruise Control (ACC) systems have emerged as a significant advancement in automotive technology, promising safer and more efficient driving experiences. However, the performance of ACC systems can vary significantly depending on their type and underlying algorithms. This research presents a comprehensive comparative analysis of car-following distances in different types of Adaptive Cruise Control systems. We evaluate and compare three distinct categories of ACC systems using three different commercial vehicles brands. The study involves extensive real-world testing at Zalazone Proving Ground, to assess the performance of these systems under various driving conditions, including driving at multiple speeds and applying different car following scenarios. The study investigates how each ACC system manages the minimum following distances according to the type of ACC sensors in each tested vehicle. Our findings revealed that at low to medium ranges of constant driving speeds, there was an approximate linear increase in the average clearances between the two following vehicles for all applied scenarios, with comparatively shorter clearances obtained by the vision-based ACC system, while unstable measurements with a high level of dispersion for all ACC systems were observed at high range of driving speeds.

Open Access: Yes

DOI: 10.3390/wevj15030116

Modeling of distribution of visible and non-visible graphite nodules embedded in the surface layer of ductile cast iron

Ágnes Csizmazia Imre Czinege Mihaly Réger Tamás Réti

Publication Name: Materials Science Forum

Publication Date: 2010-01-01

Volume: 659

Issue: Unknown

Page Range: 453-458

Description:

The graphite nodule count and size distribution are important structural parameters in the quantitative characterization of the microstructure of ductile cast irons. In several cases, it is observed that local surface damages (cracks or microchip formations) are generated by the final manufacturing process (superfinishing operation), and these defects are originated basically from the hidden (invisible) graphite nodules located directly below surface. Based on measured data obtained by an image analyzer, a stereological model and a simulation algorithm have been developed to analyse the correspondances between the graphite morphology and the defect formation. This method makes it possible to establish a correlation between the microstructure parameters and the occurrence of local surface defects on ductile cast iron components. © (2010) Trans Tech Publications.

Open Access: Yes

DOI: 10.4028/www.scientific.net/MSF.659.453

Criticality analysis of purchased materials based on fuzzy signatures

Péter Földesi Gábor Farkas Laszlo T. Koczy

Publication Name: IEEE International Conference on Fuzzy Systems

Publication Date: 2017-08-23

Volume: 0

Issue: Unknown

Page Range: Unknown

Description:

Selecting and evaluating the suppliers represent a very complex task, because a wide range of attributions must be taken into consideration and many of them are difficult to be made objectively quantified. The aim of this research is to provide a new model based on fuzzy signatures for selecting and evaluating the critical parts for the production.

Open Access: Yes

DOI: 10.1109/FUZZ-IEEE.2017.8015649

Quantitative comparative analysis on the cultural tourism-financial potential of creative cities (on the example of Debrecen, Győr and Veszprém)

Szabolcs Morvay Dávid Fekete

Publication Name: Teruleti Statisztika

Publication Date: 2020-01-01

Volume: 60

Issue: 5

Page Range: 548-566

Description:

The European Capital of Culture (ECOC) programme series aims to present the diversity of European culture, focusing on the cultural values and dimensions of cities. In 2023, Debrecen, Győr and Veszprém, as Hungarian applicants, entered the second round of the selection procedure. Although most attention is focused on the cultural programs of the project year, the project application phase is also exciting, as applicant cities can present their plans, development ideas and potentials in the field of culture. The study compares the creative aspirations and cultural potential of these 3 cities, exploring the cultural visions, strengths and weaknesses of these culturally outstandingly ambitious cities, mainly using quantifiable indicators. The authors developed and applied a survey model having 14 indicators for a quantitative comparative analysis of the cultural, tourism and financial potential of the three cities. Comparing 2 large and 1 medium-sized cities in Hungary, the authors conclude that not only in Central and Eastern Europe, but also in Hungary, stronger efforts are made to have culturally rich and creative cities.

Open Access: Yes

DOI: 10.15196/TS600502

Yield Prediction Using NDVI Values from GreenSeeker and MicaSense Cameras at Different Stages of Winter Wheat Phenology

G. Milics Viktoria Vona Gabor Kukorelli Zoltán Varga A. Kovács István Mihály Kulmány Laszló Bede Gergely Teschner Sándor Zsebő Dávid Stencinger

Publication Name: Drones

Publication Date: 2024-03-01

Volume: 8

Issue: 3

Page Range: Unknown

Description:

This work aims to compare and statistically analyze Normalized Difference Vegetation Index (NDVI) values provided by GreenSeeker handheld crop sensor measurements and calculate NDVI values derived from the MicaSense RedEdge-MX Dual Camera, to predict in-season winter wheat (Triticum aestivum L.) yield, improving a yield prediction model with cumulative growing degree days (CGDD) and days from sowing (DFS) data. The study area was located in Mosonmagyaróvár, Hungary. A small-scale field trial in winter wheat was constructed as a randomized block design including Environmental: N-135.3, P2O5-77.5, K2O-0; Balance: N-135.1, P2O5-91, K2O-0; Genezis: N-135, P2O5-75, K2O-45; and Control: N, P, K 0 kg/ha. The crop growth was monitored every second week between April and June 2022 and 2023, respectively. NDVI measurements recorded by GreenSeeker were taken at three pre-defined GPS points for each plot; NDVI values based on the MicaSense camera Red and NIR bands were calculated for the same points. Results showed a significant difference (p ≤ 0.05) between the Control and treated areas by GreenSeeker measurements and Micasense-based calculated NDVI values throughout the growing season, except for the heading stage. At the heading stage, significant differences could be measured by GreenSeeker. However, remotely sensed images did not show significant differences between the treated and Control parcels. Nevertheless, both sensors were found suitable for yield prediction, and 226 DAS was the most appropriate date for predicting winter wheat’s yield in treated plots based on NDVI values and meteorological data.

Open Access: Yes

DOI: 10.3390/drones8030088

Robotics, drones, and other autonomous systems in the seafood sector

Abdo Hassoun John G. Keogh Abderahman Rejeb Karim Rejeb

Publication Name: Seafood 4 0 Digital Physical and Biological Innovations from Sea to Table

Publication Date: 2025-01-01

Volume: Unknown

Issue: Unknown

Page Range: 223-252

Description:

The seafood sector is essential for global food security and economic development; however, it encounters substantial challenges, including labor shortages, sustainability issues, and the necessity for enhanced efficiency. Advanced technologies such as robotics, drones, and autonomous systems are increasingly being integrated into multiple stages of the seafood value chain, encompassing harvesting and distribution, to address these challenges. These technologies provide solutions through the enhancement of operational efficiency, improvement of product quality, and promotion of sustainability. This chapter examines the automation of processing and packaging through robotics, the enhancement of aquaculture and fishery monitoring via drones, and the optimization of logistics and environmental management by autonomous systems. The chapter also highlights challenges associated with the adoption of these technologies, such as elevated costs, regulatory concerns, and the necessity for technical expertise. Several real-world use cases are presented to demonstrate the practical application and benefits of each technology. The chapter concludes with recommendations for future research, emphasizing the scalability of these technologies for smaller enterprises, their integration throughout the value chain, and their environmental and social implications. Addressing these areas enables the seafood sector to leverage technology more effectively for a sustainable and efficient future.

Open Access: Yes

DOI: 10.1016/B978-0-443-33750-5.00017-2

EUROPEAN CAPITAL OF CULTURE 2023 - COMPARATIVE ANALYSIS OF THE HUNGARIAN CANDIDATE CITIES

Szabolcs Morvay Dávid Fekete

Publication Name: Deturope

Publication Date: 2020-01-01

Volume: 12

Issue: 2

Page Range: 84-104

Description:

A Hungarian city will be designated as the European Capital of Culture in 2023. The series of programmes are designed to show the multi-colour European culture, accordingly, the cultural values and cultural dimensions of the cities are in the focus. Several cities take part in the competition in the customary way by submitting their tender documentation within the framework of a pre-selection procedure. Győr, Veszprém and Debrecen proved to be the most probable candidate cities to win in Hungary, they were chosen to enter the second round of the selection procedure. Although the focus of intense attention usually falls on the cultural programmes planned for the project year, the period of the competition itself is also regarded an exciting phase of the project, since this is the period when candidate cities are expected to give an account of their plans, moreover, they are also expected to outline their projected development conception in the field of culture and their cultural potentials. The present study aims to analyse and confront the plans of three Hungarian cities that were selected to enter the second round of the competition and, consequently, it also intends to explore the visions, the strengths and weaknesses of the Hungarian cities of outstanding cultural ambitions mainly via factors denoted in figures. Today we know, that the winning city became Veszprém. Although based on the quantitative data we saw the other two cities as more likely to win, due to a number of qualitative as well as subjective factors, the city of Veszprém proved to be better during the selection procedure. We do not want to override the decision; we only outline an analytical framework for the cultural comparison of our culturally ambitious Hungarian cities.

Open Access: Yes

DOI: DOI not available