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Impact of Digital Business Communication on Expanding Sustainability in B2B Supply Chains

Edit Süle Matthew Boota

Publication Name: Chemical Engineering Transactions

Publication Date: 2025-01-01

Volume: 121

Issue: Unknown

Page Range: 133-138

Description:

In this digital era, the adoption of digital technologies is transforming business processes and helping organizations to achieve goals both domestically and globally. The role of digital businesses' communication in the B2B supply chain has become increasingly extensive. Digital technologies are helping companies to streamline their transactions more safely, enhance collaboration, and build trust among partners. Digital technology tools help businesses to improve sustainability by enhancing visibility, enabling real-time information, and facilitating product tracking throughout the entire supply chain. Earlier research explored digital tools in supply chains, but there is limited research on how these tools support business communication in supply chain sustainability. The study addresses this gap by conducting a systematic literature review of 102 journal papers from the Scopus and Web of Science databases. Out of the 732 articles initially screened, 102 were chosen, which is a selection rate of 13.9 %. The data show that the number of publications rose by more than 60 % between 2022 and 2024. This shows that audience interest is being increased in using digitalization to make supply chains sustainable. This paper outlines how digital technologies such as blockchain, ERP, cloud, and RFID help industries reach digital sustainability. The study has also presented real-world case studies of Walmart and Unilever that explain the importance of digitalization in the supply chain. This review suggests a noticeable increase in research on implementing digital tools in sustainable supply chain processes.

Open Access: Yes

DOI: 10.3303/CET25121023

Parasomnias manifest different phenotypes of sleep-related behaviors in age and sex groups. A YouTube-based video research highlighting the age slope of sleepwalking

Vivian M. Correa József Vitrai Anna Szűcs

Publication Name: Journal of Clinical Neuroscience

Publication Date: 2024-04-01

Volume: 122

Issue: Unknown

Page Range: 110-114

Description:

Study objective: Finding typical patterns - phenotypes - of sleep behaviors characterizing parasomnias in different age and sex groups. Methods: We analyzed YouTube videos on sleep-related behaviors likely representing parasomnias. We applied the search terms “sleepwalking”, “somnambulism”, “sleep eating”, “sleep sex”, “sleep talking”, and “aggression in sleep” in six languages. We classified those persons shown on the videos into estimated biological sex and age (child, adult, elderly) groups. We scored the activity types by a self-made scale and applied binary logistic regression to analyze the association between sleep behaviors versus sex and age groups by the STATA package, providing a 95% confidence interval and the probability of statistical significance. Results: 224 videos (102 women, 68 children, 16 adults, and 40 elderly people) were scored. Elderly people had significantly (P < 0.012) lower odds of sleepwalking compared to adults and children. Adult females performed complex manual activities during sleepwalking more often than males (P < 0.012). Elderly males had 40-fold odds compared to adults and children, to perform aggressive movements and 70-fold odds of complex movements in bed, compared to adults. Elderly people presented emotional behaviors less frequently than adults (P < 0.004), and females showed them twice as often as males. Adults sleep-talked full sentences more often than children and elderly people (P < 0.001). Conclusion: Our results support the existence of age- and sex-specific parasomnia phenotypes, denoting possible safety measures. The remarkably low odds of sleepwalking in the elderly highlight the possibility of different pathomechanisms in higher age groups compared to children. Brief Summary and study impact: Parasomnias present highly variable clinical forms and often cause injuries. Identifying typical phenotypes may help risk management and imply theoretical conclusions. Our study supports the existence of age-specific parasomnia phenotypes. We found that adult women have a high risk of performing dangerous activities during sleep, and elderly males often move violently in bed, likely representing dream enactment behaviors. Elderly people of both sexes have low odds of sleep ambulation- likely representing somnambulism; compared to adults and children, constituting a descending “age slope” of somnambulism that might reflect different underlying pathomechanisms in children versus adults and the elderly.

Open Access: Yes

DOI: 10.1016/j.jocn.2023.11.016

Methodology for DNS cache poisoning vulnerability analysis of DNS64 implementations

Gabor Lencse Y. Kadobayashi

Publication Name: Infocommunications Journal

Publication Date: 2018-06-01

Volume: 10

Issue: 2

Page Range: 13-25

Description:

The trustworthy operation of the DNS service is a very important precondition for a secure Internet. As we point it out, DNS cache poisoning could be even more dangerous if it is performed against DNS64 servers. Based on RFC 5452, we give an introduction to the three main components of DNS cache poisoning vulnerability, namely Transaction ID prediction, source port number prediction, and a birthday paradox based attack, which is possible if a DNS or DNS64 server sends out multiple equivalent queries (with identical QNAME, QTYPE, and QCLASS fields) concurrently. We design and implement a methodology and a testbed, which can be used for the systematic testing of DNS or DNS64 implementations, whether they are susceptible to these three vulnerabilities. We perform the tests with the following DNS64 implementations: BIND, PowerDNS, Unbound, TOTD (two versions) and mtd64-ng. As for the testbed, we use three virtual Linux machines executed by a Windows 7 host. As for tools, we use VMware Workstation 12 Player for virtualization, Wireshark and tshark for monitoring, dns64perf for Transaction ID and source port predictability tests, and our currently developed “birthday-test” program for concurrently sent multiple equivalent queries testing. Our methodology can be used for DNS cache poisoning vulnerability analysis of further DNS or DNS64 implementations. A testbed with the same structure may be used for security vulnerability analysis of DNS or DNS64 servers and also NAT64 gateways concerning further threats.

Open Access: Yes

DOI: DOI not available

Influence of environmental humidity during filament storage on the structural and mechanical properties of material extrusion 3D-printed poly(lactic acid) parts

I. Fekete Klára Verebélyi Györgyi Szarka László Lendvai Sándor K. Jakab Béla Iván

Publication Name: Results in Engineering

Publication Date: 2024-12-01

Volume: 24

Issue: Unknown

Page Range: Unknown

Description:

Material extrusion (MEX) is one of the most widely used additive manufacturing techniques these days. This study investigates how the properties of MEX 3D-printed objects depend on the relative humidity (RH) conditions in which filaments are stored before and during the manufacturing process. Poly(lactic acid) (PLA) filament was drawn directly from a humidity-controlled chamber into the MEX 3D printer's nozzle. For each set of samples, the filaments were conditioned under different RH conditions, ranging from 10 % to 90 %. The macrostructure of the fabricated products was characterized using computed tomography, revealing increased porosity at higher RH values (from 0.84 % to 4.42 %). The increased porosity at higher storage RH is attributed to under-extrusion and volatile entrapment due to excess moisture. With growing storage RH, the melt flow rate of PLA also gradually increased, indicating a plasticizing effect of humidity on the biopolymer. Gel permeation chromatography and differential scanning calorimetry analyses were conducted to determine whether hydrolytic chain scission took place when PLA was processed in the presence of excessive moisture. Neither measurement indicated any considerable alteration in molecular integrity and crystalline structure as a function of storage RH. Mechanical tests, however, revealed a reduced load-bearing capacity of the manufactured PLA specimens. Flexural strength decreased from 103.0 to 99.6 MPa, and the impact strength dropped from 18.2 to 16.2 kJ/m2, which is ascribed to the increasing size of pores inside the specimens with increasing storage RH. These findings should be taken into account when designing and processing PLA products by MEX-based additive manufacturing.

Open Access: Yes

DOI: 10.1016/j.rineng.2024.103013

Motional finite element simulation of a single-phase induction motor

Miklós Kuczmann D. Marcsa

Publication Name: Pollack Periodica

Publication Date: 2009-08-01

Volume: 4

Issue: 2

Page Range: 57-66

Description:

The paper deals with the analysis of the single-phase induction motor of Problem No. 30a of the COMPUMAG TEAM Workshop. The problem has been solved by the motional two-dimensional time-harmonic Finite Element Method (FEM) using different potential formulations, the A , V - A , -potential formulation and the T , Φ - Φ -potential formulation. Here the problem is a linear eddy current field problem.

Open Access: Yes

DOI: 10.1556/Pollack.4.2009.2.6

Emission analysis of liquefied natural gas and diesel heavy-duty trucks using on-board monitoring method

Gergő Sütheö Marton Jagicza Balázs Baráth

Publication Name: Journal of Ecological Engineering

Publication Date: 2025-01-01

Volume: 26

Issue: 2

Page Range: 258-271

Description:

Environmental protection and the reduction of greenhouse gas (GHG) emissions are becoming top priorities in the mobility sector especially in heavy-duty truck (HDT) sector. In recent years, numerous regulations, targets, and initiatives have been introduced, all of which strongly promote the reduction of carbon-dioxide (CO2) emissions, the adoption of eco-friendly alternatives, and the use of renewable energy sources. The study compares CO2 emissions and fuel consumption between conventional diesel and liquefied natural gas (LNG) heavy-duty vehicles (HDVs) from the same original equipment manufacturer (OEM). The research was conducted on multiple levels, with a primary focus on control based on test track measurements. This was preceded by a simulation phase and followed by public road measurement-based validation process. In this study, we used the onboard monitoring (OBM) emission analysis method, a cost-effective and accurate process where data was recorded from the fleet management system (FMS) using controller area network (CAN) messages. The results are presented in several stages from simulation to data validation. Our research represents a unique study in the field of HDVs, as the measurements were conducted on a test track, supported by simulations and public road tests. The results of the project clearly demonstrate that gas technology can contribute to reducing GHG emissions in HDVs, and LNG provides a reliable alternative for long-distance transportation.

Open Access: Yes

DOI: 10.12911/22998993/195574

Kulturális metaforák és sémák a magyar népdalok FOLYÓ-reprezentációiban

Baranyiné Kóczy Judit

Publication Name: Magyar Nyelv

Publication Date: 2018-01-01

Volume: 114

Issue: 2

Page Range: 156-168

Description:

No description provided

Open Access: Yes

DOI: 10.18349/MagyarNyelv.2018.2.156

Integrated regional development and river basin management

Anikó Zseni M. Bulla

Publication Name: Wit Transactions on Ecology and the Environment

Publication Date: 2011-01-01

Volume: 153

Issue: Unknown

Page Range: 397-408

Description:

The paper presents a multidisciplinary expert system which can be applied in the field of ex-ante assessment both of regional development programmes and river basin management planning. The research introduces the 'complex knowledge space' model which is a further improvement of the environmental management model which was presented during the Conference on Environmental Engineering Education and Training organised by WIT 1996. © 2011 WIT Press.

Open Access: Yes

DOI: 10.2495/WS110351

Correction to: Deindustrialization, Tertiarization and Suburbanization in Central and Eastern Europe. Lessons Learned from Bucharest City, Romania (Land, (2023), 12, 9, (1731), 10.3390/land12091731)

Hardi Tamás Radu Săgeată Ines Grigorescu Bianca Mitrică Andreea Loreta Cercleux

Publication Name: Land

Publication Date: 2024-04-01

Volume: 13

Issue: 4

Page Range: Unknown

Description:

In the original publication [1], there was a mistake in the legend for Figure 1 and Figure 4. A map legend can be explained either by text within the figure (where space permits) or by numbering the conventional signs within the figure, and explaining them below the figure (where space is more limited). In Figure 1 and Figure 4, the second method of explanation was initially used (by means of the numbers explained under the figure), but later, according to the indications received from the referents, the numbers in the figures were replaced by their explanations (according to the version uploaded on 3 September 2023). Due to an unfortunate error, in the version uploaded on 6 September 2023, Figure 1 and Figure 4 were uploaded with the conventional numbered signs in the legend, but without the explanation of the numbers below the figure, making the figures much more difficult to explain. Therefore, we request that these two figures be replaced with their variant, where the legend is explained in the text, as indicated by the referents. The correct legend appears below. The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.

Open Access: Yes

DOI: 10.3390/land13040486