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Found 6327 publications

Analysis of Human-Robot Interactions as a Sustainability Factor

Adam Csapo Csaba Hajdu

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 85-90

Description:

Robotic systems are traditionally widespread in the efficient automatization of industrial processes. Recent applications include material handling, reconnaissance, and agricultural tasks, besides the more traditional assembly line tasks. On the other hand, the recent advancements of robotic systems aim at enhancing and even replacing the human workforce in traditional social service tasks, like nursery, clerk positions, eldercare, and catering – collectively called social robotics. Developed countries generally suffer from the decreased available workforce in these areas, threatening the long-term availability of such essential services. The robots providing such services are required to appear and behave human-like to some degree to interact with people seamlessly. Human-like behavior requires complex software and hardware systems with learning capabilities to solve social situations appropriately. This paper investigates the relationship between human-robot interactions and sustainability and identifies the foundational similarities between the aims of the two interdisciplinary fields. The paper proposes the effect of complex interaction capabilities on sustainable factors and their possible qualitative verification. The quantitative factors described in this paper are the social perception of different robots and their expected functions defined by the foundational human-robot interaction roles. The paper proposes the possible contribution of future social robot applications to sustainability factors, such as the effect of telepresence. The paper also presents the result of a qualitative survey of participating university students on the acceptance of different types of robots based on their visual appearance. The assumption of possible integration of robots into social roles and what appearance is perceived as acceptable. In summary, this paper highlights the sustainable factors in human-robot interactions by identifying the effects of social robot roles and mapping between corresponsive sustainability factors, most importantly resolving workforce deficit.

Open Access: Yes

DOI: 10.3303/CET23107015

Intelligent Traffic Signal Control Using Rule Based Fuzzy System

Tamrat Delessa Chala Ĺaszĺo T. Ḱoczy

Publication Name: Studies in Computational Intelligence

Publication Date: 2023-01-01

Volume: 1087

Issue: Unknown

Page Range: 347-371

Description:

Over the past decades, there has been an ever-increasing saturation of traffic networks due to the growing number of road vehicles, and due to the available limited. To solve these problems, adaptive, (semi-) intelligent traffic control has been used widely for the last decades. These systems nevertheless, have some shortages, the most obvious one being that these systems use the presence of vehicles at the lanes immediately before reaching the intersections. The real queue size cannot be taken into consideration. In the present approach, the input values are supposed to come from cameras connected with image processing systems and directed microphones. We propose a new traffic signal control system with a hierarchical structure based on similarly Mamdani control, however, containing essentially novel elements and having more intelligent features. This new model and the connected algorithmic approach allow rather complex control strategies, but only a simple case study has been implemented. Compared with existing fuzzy traffic controls, the novel approach has more adaptability and flexibility, by having the potential to differentiate an arbitrary number of traffic directions and by increasing general safety by the additional emergency vehicle handling feature. In addition, the calculation with queues, and individual vehicles weighted with the waiting time makes the system more flexible than any existing intelligent model.

Open Access: Yes

DOI: 10.1007/978-3-031-25759-9_17

Method of Railway Subgrade Diseases (defects) Inspection, based on Ground Penetrating Radar

Szabolcs Fischer Yaonan Li Bo Jiang Shilei Wang Hengbai Liu

Publication Name: Acta Polytechnica Hungarica

Publication Date: 2023-01-01

Volume: 20

Issue: 1

Page Range: 199-211

Description:

Due to the impact of climatic and natural factors, the normal-speed railway subgrade is vulnerable to mud pumping, water accumulation, subsidence and other defects, hereafter called diseases, that frequently occur, after a period of service. It is imperative to quickly detect subgrade diseases. On the basis of studying the law of geological radar electromagnetic signal propagation along the railway subgrade, according to the results of site excavation and verification, this paper proposes a method for railway subgrade disease inspection based on ground penetrating radar. In addition, radar image features of typical subgrade diseases are clarified herein. Practical application results show that this inspection method is effective to accurately identify subgrade diseases. In particular, it is of great significance to the rapid inspection of hidden subgrade diseases. In addition, an analysis of inspection results and distribution of subgrade diseases along the line is conducive to determining the key section for treatment of subgrade diseases.

Open Access: Yes

DOI: 10.12700/APH.20.1.2023.20.14

On the aggregation functions used in fuzzy signatures based medical image analysis

Ferenc Lilik Melinda Kovacs Ĺaszĺo T. Ḱoczy Szilvia Nagy

Publication Name: IEEE 23rd International Symposium on Computational Intelligence and Informatics Cinti 2023 Proceedings

Publication Date: 2023-01-01

Volume: Unknown

Issue: Unknown

Page Range: 409-414

Description:

The paper proposes the use of fuzzy signatures for modeling and analysis of pre-processed medical images, as an example, CT images of the liver are analyzed. Fuzzy signatures are used for the case of distinguishing larger and smaller malignant lesions from each other and from other (benign) nodular diseases in liver computed tomography images. As computed tomography phases are sometimes missing, the treatment of missing data is also briefly addressed. As the size of the malignant lesion influences its manifestation on the images, separate sub-signatures are developed for large and small lesions with the size being a separate layer of the signature. From the medical experts' point of view besides the tree structure of the signature it is crutial to determine the aggregations themselves, which model the ways experts fuse and combine the available information. For the subtrees for small and large lesions in the sub-roots algebraic multiplication seems to be the best fitting t-norm, while in the subtree weighted means.

Open Access: Yes

DOI: 10.1109/CINTI59972.2023.10381986

Dietary Inclusion of Defatted Silkworm (Bombyx mori L.) Pupa Meal for Broiler Chickens at Different Ages: Growth Performance, Carcass and Meat Quality Traits

Eszter Zsédely Marco Cullere Klaudia Szalai Yazavinder Singh Antonella Dalle Zotte G. Takács Zsolt Herman

Publication Name: Animals

Publication Date: 2023-01-01

Volume: 13

Issue: 1

Page Range: Unknown

Description:

The present study was conducted to assess the effects of a 4% defatted silkworm (SWM-DEF) meal dietary incorporation into chickens’ diet at different growth stages on growth performances, carcass, and meat quality traits. A total of 90 Ross 308 one-day-old male broiler chickens were randomly allocated into 3 dietary groups of 5 replicated pens/diet (6 chickens/pen). One group was fed a standard soybean-based diet (C); group SWM1 consumed a starter diet (1–10 days of age) including 4% SWM-DEF and then the C diet up to slaughter (11–42 days of age); group SWM2 was fed with the C diet in the starter phase and the 4% SWM-DEF diet up to slaughter. Individual live weight and pen feed intake were determined at the end of each feeding phase: starter, grower, and finisher. Weight gain and FCR were then calculated. At 42 days of age, chickens were slaughtered and carcass traits determined. Leg and breast physico-chemical meat quality was also evaluated. Results confirmed that SWM-DEF could be a possible alternative feed source for chickens since growth performance, carcass, and meat physical traits were overall comparable in the three treatment groups. The feeding stage seemed to play a relevant impact on the sole meat protein content (SWM1 < SMW2 and C; p < 0.001). Concluding, the results available to date indicate that 4% SWM-DEF can be provided to chickens in different growth phases, and the choice of the inclusion period is more an industrial cost-benefit evaluation. From the scientific point of view, however, an administration in the grower-finisher phase rather than in the starter one provided the best meat nutritional quality. Further investigations should focus on the impact on meat fatty acids profile and sensory traits, which are of utmost importance for consumers.

Open Access: Yes

DOI: 10.3390/ani13010119

Detecting and Locating Signal Leakages from Cable TV Networks – A Case Study

Péter Vári Hussein Taha

Publication Name: International Journal of Electronics and Telecommunications

Publication Date: 2023-01-01

Volume: 69

Issue: 3

Page Range: 529-536

Description:

Since the digitalization of terrestrial television, many countries have discontinued television broadcasting in the UHF band. The freed-up frequencies are now available as digital dividends for mobile and fixed wireless access communication networks (MFCN), particularly for 4G/5G and public safety services in broadband called BBPPDR. Since cable TV still uses the UHF band, leakage from cable TV networks is the most common cause of interference in MFCN networks. Insufficient containment of the radio frequency signals transmitted through a cable system results in cable signal leakage. This article investigates the significance of controlling electromagnetic signal leaks from cable TV networks and how they impact authorized and standardized MFCN networks in the digital dividend bands. The periodic drive-test approach to detect and measure electromagnetic leakage from a cable TV system in the 700 MHz band at a site is detailed. The causes of the detected leaks and offered the appropriate procedure to repair them are also discussed. Additionally, the current measures taken in Hungary to address cable television signal leakage in the digital dividend bands are also discussed and alternative strategies for the adopted test drive approach are proposed.

Open Access: Yes

DOI: 10.24425/ijet.2023.146502

Circular Concepts and Values: Will Reuse Become Fashionable?

Cecília Szigeti Katalin Bándy Máté Farkas-Kis Sándor Remsei

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 301-306

Description:

Analysts often treat the circular economy as a technical issue. They often focus on how to organise work processes better. The authors’ concept is that circularity is much more than that, and a more precise and holistic approach can help create a better and more inclusive future for all. Young people play a key role in achieving a circular future (as a socioeconomic system). In this paper, the authors will look at how young people relate to circular processes. The research, based on a survey of 1,442 university students, took place in November and December 2022. The majority of the respondents were born around 2000 and are enrolled in undergraduate studies at Széchenyi István University. The questions of a standardised questionnaire were designed to collect information on the awareness of participation in the socioeconomic cycle process, the understanding of the context and the way of participation. The results of the research show that the students who consider themselves environmentally conscious are more likely to recycle and collect waste selectively, but it is not clear whether they participate in extending the life of the objects (swapping, second market, etc.). The research also found that students do not use and are typically unaware of online applications promoting circular lifestyles. The research sheds light on what a circular future would look like and what could be built on it.

Open Access: Yes

DOI: 10.3303/CET23107051

Potential Benefits of Mixed Waste Collection Methods

Ádám Titrik

Publication Name: Periodica Polytechnica Transportation Engineering

Publication Date: 2023-01-01

Volume: 51

Issue: 3

Page Range: 270-274

Description:

It is difficult to determine the ideal way for collecting selective waste since calculations must be made taking into account a variety of collection vehicles, containers, city regions, and verifying vehicles. Additionally, we need to keep in mind that acquiring some statistical information on container filling is crucial for organizing the gathering process. The majority of the vehicles used for the gathering operate on fossil fuels like gasoline, which releases carcinogens into the atmosphere. Since the engine drives a hydraulic pump that generates power to lift the container when it is being emptied, the exhaust emissions are not solely coming from the vehicles when they reach the container. As a result, it is crucial to describe the entire gathering process. On the one hand, we want to safeguard the environment by utilizing selective gathering, but on the other hand, there are gathering vehicles that emit carcinogenic exhaust gas. In order to reduce unneeded pollution from the gathering vehicle, we aim to identify the best solution in this paper for choosing the appropriate selective material collection method.

Open Access: Yes

DOI: 10.3311/PPtr.21851

Composting of medicinal and aromatic plant waste: challenges and opportunities

E. Lakatos Babett Greff András Sáhó Miklós Posgay Ágnes Nagy

Publication Name: Recent Trends in Solid Waste Management

Publication Date: 2023-01-01

Volume: Unknown

Issue: Unknown

Page Range: 115-136

Description:

Aromatic plants have been extensively used for their medicinal and culinary properties by the cosmetic, pharmaceutical, and food industries. Along with the prosperous development of the herbal industry, however, enormous amounts of solid biomass have been generated, creating an environmental hazard. Since the waste material generated during harvesting, pre-processing, or extraction may retain its nutritional value, it can be converted to compost or vermicompost. Nonetheless, the addition of herbal residues to the feedstock material may negatively influence biodegradation due to the lower nitrogen content, increased lignocellulose content, and the remaining bioactive compounds. Overall, this book chapter discusses the current challenges that herbal waste composting/vermicomposting faces, provides insights into the process optimisation, and summarises the potential beneficial effects of mature compost.

Open Access: Yes

DOI: 10.1016/B978-0-443-15206-1.00003-7