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Publications - 6278

Effect of n-3 polyunsaturated fatty acid feeding on the fatty acid profile and odor of milk in danbred sows

Tamás Tóth George Bázár Zoltan Kovacs Hedvig Febel Miklós Mezes Robert Roszkos

Publication Name: Journal of Applied Animal Research

Publication Date: 2021-01-01

Volume: 49

Issue: 1

Page Range: 447-459

Description:

The effects of n-6 and n-3 fatty acid supplementation on the fatty acid profile of sow milk were investigated using traditional fatty acid analysis and a novel method of the electronic nose (EN). The control group received 6.3 g of sunflower oil (SO) rich in n-6 fatty acids per kg feed, and experimental animals received the same amount of fish oil (FO) as an n-3 fatty acid source. The diets were corn- and soybean meal-based diets. Supplementation of SO enhanced the amount of linoleic acid (C18:2, n-6) (SO: 8.43 mg/mL vs. FO: 6.63 mg/mL milk), and significantly increased (p < 0.02) the amount of total polyunsaturated fatty acids (SO: 9.92 mg/mL vs. FO: 8.61 mg/mL milk) in the sow’s milk. On the contrary, FO significantly increased the amount of n-3 polyunsaturated fatty acids (FO: 1.17 mg/mL vs. SO: 0.69 mg/mL milk), especially eicosapentaenoic acid (C20:5, n-3), docosapentaenoic acid (C22:5, n-3), and docosahexaenoic acid (C22:6, n-3), in the milk (p < 0.001). FO and SO supplementation did not affect the analytical composition of milk. Milk samples collected from the differently fed individuals could be clearly separated according to the feeding groups based on the odour profile described by the EN.

Open Access: Yes

DOI: 10.1080/09712119.2021.2005071

CONTRIBUTION OF MODERN INDUSTRIAL REVOLUTIONS TO SECURING SOCIO-ECONOMIC SYSTEMS DURING THE WAR AGAINST UKRAINE

Laszlo Vasa Leonid Melnyk Oleksandr Kubatko Inna Koblianska Leonid Melnyk Pavlo Hrytsenko

Publication Name: Problems and Perspectives in Management

Publication Date: 2025-01-01

Volume: 23

Issue: 2

Page Range: 921-937

Description:

The modern industrial revolutions have significantly influenced social and political landscapes, prompting critical inquiries into the security and integrity of socio-economic systems, particularly in the context of military confrontation. This paper investigates the role of disruptive technologies associated with Industries 3.0, 4.0, and 5.0 in safeguarding socio-economic systems amid the ongoing russian war against Ukraine. The paper highlights how modern technologies have bolstered system resilience and adaptability by examining progress in green energy, transport transition, and the development of digital infrastructure and services before the war. Green energy and transport technologies have been instrumental in decentralization, energy networking, compensating for energy losses, and mitigating disruptions caused by the war. The proliferation of electric vehicles and the expansion of charging infrastructure have significantly reduced the potential impact of aggression, facilitating evacuations and supporting essential services during fuel shortages. Digital technologies have played a crucial role in ensuring continued access to education, employment, and communication, thereby strengthening societal resilience and reinforcing human capital, a key factor in socio-economic system security. This marks a shift from a technocratic to a system-synergistic, human-centered security model, where human capital becomes a core determinant of resilience, and technologies evolve from mere tools into integral elements of a sustainable socio-economic structure. Nevertheless, challenges related to technological dependencies, such as supply chain vulnerabilities and cyber threats, require further investigation in future research.

Open Access: Yes

DOI: 10.21511/ppm.23(2).2025.67

Estimation of energy distribution for car-body deformation

István Harmati Peter Varlaki

Publication Name: Isciii 07 3rd International Symposium on Computational Intelligence and Intelligent Informatics Proceedings

Publication Date: 2007-01-01

Volume: Unknown

Issue: Unknown

Page Range: 229-232

Description:

Identification of distribution of deformational energy for vehicle body deformational processes is a very important and difficult task in accident analysis and in safety car-body design. Exact estimation or measuring of the absorbed energy by the deformation is almost impossible, so we apply an estimation for this. The classical tool for this task is usually a differental equation based finite element method, which requires exact knowledge about the parameters. In the following we introduce a simple numerical model describing the changing of the energy distribution during the whole deformational process. The main idea is similar to a finite element method: let have a 3D rectangular grid on the car-body, according to the energy absorbing properties of the vehicle, so each cell is approximately homogenous. For For each cell a monotonous decreasing function is assigned, which describes approximately the rate of the absorbed and the input energy. For different possible directions of the impact we define different absorbing functions, and instead of the original input, we deal with its orthogonal components, so the final result then will be the sum of the particular result. © 2007 IEEE.

Open Access: Yes

DOI: 10.1109/ISCIII.2007.367394

The Phenomenon of Greenwashing: An Analysis of the Hungarian Regulation

Ildikó Ernszt Viktória Kundi

Publication Name: Journal of Sustainability Research

Publication Date: 2024-12-01

Volume: 6

Issue: 4

Page Range: Unknown

Description:

The terms “sustainability”, “green”, “eco”, “eco-conscious” have become important buzzwords: they are fashionable, trendy; they make everything that comes into contact with them more attractive. Not only do a plethora of scientific articles cover the topic hallmarked by the above words, but they have also risen to the throne in the marketing communications of businesses and companies. They are used in many cases, even when the given product or service has either nothing to do with or only tangentially has a connection with the green character. The phenomenon of “greenwashing”, i.e., the case described above, when products and services are presented as environmentally friendly and green without real actions, is becoming more widespread. Today, consumers are also becoming more and more conscious; most of them demand correct information. In addition, the laws of individual countries place increasing demands on businesses, their environmental and social responsibility—so the use of green “practices” is often a means of staying on the market and surviving. The phenomenon is global. The European Union has recently adopted new legislation to prevent greenwashing, while countries are taking action against unethical corporate behaviour through their legislation and consumer protection authorities. This research aims to analyse the new EU directive and Hungarian legislation to see if there is a chance to eradicate the phenomenon completely. The research involved content analysis, as well as analysis of websites and case law. The results suggest that companies are always one step ahead and that only a unified trademark system can be the ultimate solution in the fight against greenwashing.

Open Access: Yes

DOI: 10.20900/jsr.20240066

Measurement and analysis of vibration levels in stacked small package shipments in delivery vans as a function of free movement space

Péter Böröcz Bence Molnar

Publication Name: Applied Sciences Switzerland

Publication Date: 2020-11-01

Volume: 10

Issue: 21

Page Range: 1-13

Description:

In recent years there has been a very significant increase in parcel delivery shipments all over the world. Moreover, this mode of delivery, in some cases, is facing a very intensive flow of goods, such as in annual festive seasons or, for instance, in situations like COVID-19 when personal purchase of goods is strictly limited in malls. This often means that delivery vehicles operate at almost full capacity, and many same or different kinds of packages are therefore stacked in small delivery vehicles. In this study, we measured and analyzed the vibration levels that occur in smaller stacks of packages in parcel delivery shipments, paying particular attention to those circumstances such as stacking layers and free movement spaces that can affect the vibration in different layers of packages. The goal of this paper was to provide information about the vibration levels that occur in smaller stacks of packages that are not unitized and fixed, as is common in parcel transportation. The recorded vibration events were analyzed in terms of power spectral densities (PSDs) and supplied with statistical data of acceleration events to provide an understanding of the variability of intensity. Based on the results of this study, PSD spectra were developed for various free movement conditions, as well as spectra for each layer in the stacked parcel package shipment. The results showed that the vibration level increases in the stacked load upwards and with an increase of free space of possible movement. The results of this study can be used to simulate the measured vibration conditions in laboratory tests conducted on courier express parcel shipments.

Open Access: Yes

DOI: 10.3390/app10217821

Comparison of High-Precision GNSS systems for development of an autonomous localization system

Huba Somogyi Alexandros Soumelidis

Publication Name: 2020 23rd IEEE International Symposium on Measurement and Control in Robotics Ismcr 2020

Publication Date: 2020-10-15

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

In the near future, the vehicles offering advanced driver assistance or fully autonomous operation. It will require increasingly accurate position information, available in all driving conditions and with 100 percent availability. In generally, a single sensor cannot meet these requirements alone and so it is necessary to use a combined sensor suite solution incorporating different kinds of sensors working together. As the only source of absolute position, velocity and time, Global Navigation Satellite systems (GNSS) play a critical role in next generation positioning systems. In this paper, we are dealing with modern GNSS solutions and presents the results of the comparison of two high-precision GNSS systems in different driving conditions and presents conclusion for the develop of autonomous localization system.

Open Access: Yes

DOI: 10.1109/ISMCR51255.2020.9263762

'Lovers of Beauty': The oeuvres of george santayana, fred holland day and edward perry warren as exemplifications of aesthetics of existence influenced by the platonic eros

Nóra Horváth

Publication Name: Brno Studies in English

Publication Date: 2015-01-01

Volume: 41

Issue: 2

Page Range: 5-21

Description:

My theory is about the lovers of beauty who tried to aestheticize their existences in different ways, but with the same goal: To make life into an oeuvre. George Santayana created an aesthetic ontology, Fred Holland Day made a photo composition (Beauty is Truth), which is the essence of his aesthetics of existence, and Edward Perry Warren spiritualized the Male ideal shaped through the praising of the Uranian Eros. They used the Hellenic idea as a life-giving energy, they re-eroticised the philosophical thoughts about self-creation and the aesthetic way of life. The serious questions of private perfection and self-creation can be the basis of an ethics of personality. According to Agnes Heller it is always the ethics of one person. We have to illustrate it, if we want to speak about it. So, we have to examine one paradigmatic case to illustrate the essence of it.

Open Access: Yes

DOI: 10.5817/BSE2015-2-1

Measurement and simulation of vector hysteresis characteristics

Miklós Kuczmann

Publication Name: IEEE Transactions on Magnetics

Publication Date: 2009-01-01

Volume: 45

Issue: 11

Page Range: 5188-5191

Description:

This paper presents a Preisach model of ferromagnetic hysteresis to simulate the vector hysteresis properties of ferromagnetic materials. Vector behavior has been studied using a single sheet tester with a round shaped specimen at low frequency, and the magnetic flux density vector has been controlled by a digital measurement system. Circular magnetic flux density pattern has been measured. An inverse vector Preisach hysteresis model has been developed and identified by applying the measured data. Finally, the inverse model has been inserted into a finite element procedure through the fixed point technique and the reduced magnetic scalar potential formulation. The applicability of the measurement system as well as the developed model has been proven by comparing measured and simulated results. © 2009 IEEE.

Open Access: Yes

DOI: 10.1109/TMAG.2009.2031072

Teamwork in higher education: Teamwork as chance of success

Bencsik Andrea I. Marosi

Publication Name: International Journal of Learning

Publication Date: 2009-01-01

Volume: 16

Issue: 5

Page Range: 167-174

Description:

Education, economy and labour market bear important relationships. The ever faster changes and more important preservation of competitiveness force higher educational institutions and economic players to cooperate more effectively. According to their educational, scientific, knowledge-maker and generative characteristics, universities and colleges receive and play a more active role in the development of the economy. Besides the expansion and multitude of higher education these also contribute to the changes in higher educational roles. In this study, which was conducted among higher educational lecturers, first of all we were looking for the answer whether there is a turn to receive practical experience during daily educational system or in the operation of institutions. Continuing this, in our target groups we intended to find out whether there is change in relationships among lecturers themselves, lecturers and their students, lecturers and economic players. We also wanted to find out if there is any possibilities to work in a team and whether we can find any sign of expectations defined by lecturers and employers of the labour market. Is there any improvement in the way of preparation for living up requirements, such as project-work, language - and entrepreneur abilities? What kind of attitude can be recognized in the theoretical, practical and educational methods? © Common Ground, Ildiko Marosi, Andrea Bencsik, All Rights Reserved, Permissions.

Open Access: Yes

DOI: 10.18848/1447-9494/CGP/v16i05/46260