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Found 6383 publications

Fuzzy based brightness compensation for high dynamic range images

András Rövid Peter Varlaki Annamária R. Várkonyi-Kóczy

Publication Name: Ines 05 IEEE 9th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2005-01-01

Volume: 2005

Issue: Unknown

Page Range: 245-248

Description:

The high dynamic range of illumination may cause serious distortions and problems in the view and further processing of digital images. In this paper a new fuzzy based tone reproduction pre-processing algorithm is introduced which may help in developing the hardly or non viewable features and content of the images making easier the further processing of it. © 2005 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2005.1555166

Biorefining green triticale grass as a flavonoid-rich source of protein for sustainable food systems

Szilvia Veres Áron Béni Éva Domokos-Szabolcsy Nóra Bákonyi Tarek Alshaal Nevien Elhawat Wildan Suhartini László Kaszás S. Reyhan Yavuz Zoltán Kovács Andrea Balláné Kovács Miklós G. Fári Endre Máthé

Publication Name: Food Bioscience

Publication Date: 2026-05-01

Volume: 79

Issue: Unknown

Page Range: Unknown

Description:

Green biomass serves as an eco-friendly, plant-derived substitute for conventional protein sources. Leaf protein concentrate (LPC) not only acts as a viable alternative to animal-derived proteins but also contains essential vitamins and bioactive compounds providing nutraceutical advantages. The extraction technique plays a critical role in maximizing LPC yield. In this study, green juice derived from the wet pressing of green triticale biomass was divided into two aliquots, each subjected to distinct processing techniques for LPC isolation. One portion underwent direct thermal coagulation via microwave irradiation, followed by vacuum filtration, yielding green LPC (MW-GLPC) and its brown juice (GJ-BJ). The other was first centrifuged to remove large photosynthetic complexes, producing yellow juice that was subsequently thermally coagulated and vacuum filtered to obtain yellow LPC (YLPC) and its brown juice (YJ-BJ).The crude protein content in the MW-GLPC fraction (38.44 g 100 g−1 DW) was higher than the raw green juice (16.38 g 100 g−1 DW). YLPC fraction, obtained by incorporating a centrifugation step into the process, resulted in a significantly increase in crude protein (67.22 g 100 g−1 DW). For fractions of brown juice (BJ), the crude protein content differed depending on the processing technique, with GJ-BJ exhibiting 0.73 g 100 g−1 FW and YJ-BJ displaying 1.06 g 100 g−1 FW. Size exclusion chromatography (SEC) indicated that BJ primarily contained oligopeptides ranging from 200 to 3000 Da.Phytochemical assessments demonstrated that YLPC exhibits the highest concentration of some beneficial bioactive compounds, such as luteolin (27.2 μg g−1), and isovitexin (111.6 μg g−1). These findings are consistent with results obtained from the Drosophila melanogaster model under high-sugar conditions designed to simulate high-sugar-induced stress. Flies supplemented with a concentration of 20% YLPC demonstrated a 10.52% increase in viability relative to the control group, thereby indicating the beneficial potential of YLPC in high-sugar containing environments.

Open Access: Yes

DOI: 10.1016/j.fbio.2026.108763

Assessment of SLAM Methods Applied in Monochromatic Environments †

Áron Ballagi Rudolf Krecht

Publication Name: Engineering Proceedings

Publication Date: 2024-01-01

Volume: 79

Issue: 1

Page Range: Unknown

Description:

One of the most significant challenges in sustainable autonomous mobile robot and vehicle development is the perception of stochastic environments. Various environmental perception methods have been proposed to address these challenges; however, these methods often lack general applicability. Many of these methods rely on environmental feature extraction, which can fail in specific scenarios, such as monochromatic environments. This article aims to evaluate existing SLAM (Simultaneous Localization and Mapping) methods that utilize camera or combined camera and LiDAR input data in predominantly monochromatic environments. Additionally, this study seeks to identify performance issues in such applications.

Open Access: Yes

DOI: 10.3390/engproc2024079051

Analysis of Transient-Like Vertical acceleration Events on Semi-Trailer Truck to Simulate Package Testing

Péter Böröcz Renáta Pidl

Publication Name: Advances in Transdisciplinary Engineering

Publication Date: 2024-01-01

Volume: 59

Issue: Unknown

Page Range: 217-223

Description:

In road traffic, encountering significant bumps is common, especially at sunken railway crossings, tertiary roads, and poorly maintained access roads. Speed bumps, also known as "sleeping policemen," exacerbate the issue, requiring drivers to slow down abruptly. Depending on visibility and anticipation, vehicles approach these obstacles at various speeds, resulting in impact loads primarily in the vertical direction on the vehicle's load platform. Accelerations exceeding g-force levels can cause cargo to bounce, leading to potential damage and horizontal sliding, particularly problematic for semi-trailer trucks carrying high-value goods. This study focused on measuring and evaluating this effect using a specific speed bump model simulating a defined road defect on a particular vehicle. The highest vertical acceleration recorded was 2.4G at a speed of 10 km/h. At 5 km/h, the acceleration was 0.76G, while at 15 km/h, it reached 1.9G. These findings suggest that a speed around 10 km/h poses the most risk for such vehicles, with acceleration levels expected to decrease for both slower and faster speeds.

Open Access: Yes

DOI: 10.3233/ATDE240548

Experimental and numerical investigations of external reinforced damaged pipelines

Balázs Pere J. Lukács Gy Nagy János Égert I. Török

Publication Name: Procedia Engineering

Publication Date: 2010-04-01

Volume: 2

Issue: 1

Page Range: 1191-1200

Description:

The lifetime management of different engineering structures and structural elements is one of the important technical-economic problems nowadays. The purpose of the paper is to present the role of the external reinforcing on the structural integrity of industrial and transporting steel pipelines, based on experimental and numerical investigations. External reinforcement was developed using carbon fibre polymer matrix composite (PMC). Fatigue and burst tests were performed on pipeline sections containing natural and artificial metal loss defects, and girth welds including weld defects (passed and not passed quality). Both unreinforced and reinforced pipeline sections were examined. For the FEM investigation of the problem three groups of mechanical models are applied: multilayered elastic shell, 3D elastic solid and 3D elastic-plastic solid FEM models. The aim of this numerical analysis is to clarify the deformation, stresses and strains in the surrounding area of defects both in the steel pipe and in the composite reinforcement. A further task is to determine numerically the width of the reinforcement and the number of layers needed for reinforcement or repair. The applicability of the hybrid structure (steel + PMC) was demonstrated by means of the experimental and the numerical results. © 2010 Published by Elsevier Ltd.

Open Access: Yes

DOI: 10.1016/j.proeng.2010.03.129

5G Networks in the Value Chain

John G. Keogh Abderahman Rejeb

Publication Name: Wireless Personal Communications

Publication Date: 2021-03-01

Volume: 117

Issue: 2

Page Range: 1577-1599

Description:

As Information and Communication Technologies are evolving rapidly and at an exponential pace‚ businesses are forced to cope with the latest trends in innovation and to respond to emerging needs and opportunities. The constant digitization and process automation (digitalization) of supply chains call for the consideration of innovative services to sustain value chain efficiency and effectiveness. Given the approaching technological developments‚ the new network upgrades embodied in 5G networks raises several high expectations along the value chain. This paper recognizes the critical role of 5G telecommunications to support several value chain activities and create value propositions that would not be possible with existing network generations. To this end‚ Porter’s value chain model is applied and comprehensively discussed to highlight the potential areas that could be facilitated by 5G telecommunications.

Open Access: Yes

DOI: 10.1007/s11277-020-07936-5

Spatially aggregated data and variables in empirical analysis and model building for economics

Dusek Tamás

Publication Name: Cybergeo

Publication Date: 2004-12-01

Volume: 2004

Issue: Unknown

Page Range: Unknown

Description:

A short review of the importance of spatial aggregation problem in general and specially in economics is followed by a typology of spatial analysis and statistical data from spatial aggregation viewpoint. The modifiable areal unit problem is divided into two parts. There are the scale and the zoning system effects, which are illustrated using Hungarian data. Spatial data aggregation creates the need for investigating the connection between the theory and data as well as the micro-macro dualism.

Open Access: Yes

DOI: DOI not available

RFID-Enhanced Modified Two-Bin System for Reducing Excess Inventory of FMCG Industry

Edit Süle Md Mahraj Uddin Golam Sakaline Shuvojit Das Md Nazmul Hasan Sarker Gazi Md Mahbubul Alam Rajin

Publication Name: Logistics

Publication Date: 2025-12-01

Volume: 9

Issue: 4

Page Range: Unknown

Description:

Background: Globally, in the Fast-Moving Consumer Goods (FMCG) industry, excess inventory results from the bullwhip effect. Earlier, barcode-based two-bin systems were limited by manual scanning; hence, a more responsive system is needed to align the inventory with real-time demand. Prior studies have predominantly concentrated on mitigating demand fluctuations and employed comparatively low-efficiency systems, hindering excess inventory (EI) reduction. Methods: This study proposes identifying research gaps, considering the distributor-manufacturer relationship, and developing an RFID-based modified two-bin system and mathematical model to reduce EI and control over manufacturers’ excessive cost. Results: This study tested through Python-based simulation using historical data from an FMCG manufacturer, and the proposed model achieved a reduction in 67% EI and 73% month-wise holding costs. Moreover, the integration of the Artificial Bee Colony algorithm optimizes rework rates within budget, including reworking shop-floor and holding costs, contributing to a monthly excessive cost reduction of 34–48%, alongside a corresponding 41–44% cumulative excessive cost reduction. Conclusions: Bringing significant implications on digitalized SCM, this study offers a practical and scalable solution for perishable FMCG items facing demand variability and budget constraints. Collectively, this novel perspective bridges research gaps and motivates future research for embedding trend-aligned parameters, enhancing the model’s performance through diverse SCM contexts like safety stock and backorder cost optimization.

Open Access: Yes

DOI: 10.3390/logistics9040167

Mitigation of inductive coupling effects on buried pipelines using gradient control conductors of overhead line configuration and hippopotamus optimization algorithm

Sid Ahmed Bessedik Rabah Djekidel Kelthoum Hachani Bentouati Bachir Ragab A. El-Sehiemy

Publication Name: Scientific Reports

Publication Date: 2026-12-01

Volume: 16

Issue: 1

Page Range: Unknown

Description:

By electromagnetic perturbation effect, the extra-high voltage (EHV) overhead transmission lines can cause significant induced voltages and currents on buried metallic pipelines located in the immediate vicinity. These voltages can present a source of hazard both for the structural I ntegrity of the metallic pipeline and for the safety of personnel responsible for operation and maintenance. This paper proposes the quasi-static modeling of the electromagnetic interference to which a buried metallic pipeline will be subjected nearby an extra-high voltage (EHV) overhead transmission line, under steady-state operating conditions of the power electrical grid. Using the electrical network analysis method to evaluate the induced voltage levels and its effects on the buried pipeline; also, to propose a mitigation strategy if necessary. The results obtained show that the values of the AC induced voltage on the buried pipeline are significant and exceed the limits defined by the international NACE standard. They can cause a risk of electrocution for intervention personnel and accelerate the process of metal corrosion. Therefore, the gradient control mitigation technique of the conductors and their optimal geometric arrangement of EHV transmission line using Hippopotamus Optimization (HO) algorithm were proposed to reduce AC induced voltages within the permissible safety limits, according to the requirements of the NACE Standard. Finally, it should be noted that the implementation of these mitigation approaches have led to remarkable results in eliminating potential risks.

Open Access: Yes

DOI: 10.1038/s41598-026-40852-5