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1.

001-es BibID:BIBFORM110161
035-os BibID:(Cikkazonosító)2607 (WOS)000539257300199 (Scopus)85085866339
Első szerző:Akbar, Usman
Cím:Energy efficiency in transportation along with the belt and road countries / Usman Akbar, József Popp, Hameed Khan, Muhammad Asif Khan, Judit Oláh
Dátum:2020
ISSN:1996-1073
Megjegyzések:China's huge investment in the "belt and road initiative" (BRI) may have helped improve the economic level of participating countries, but it may also be accompanied by a substantial increase in greenhouse gas (GHG) emissions. The BRI corridors aim to bring regional stability and prosperity. In such efforts, energy efficiency due to increased transport has been overlooked in the recent literature. This paper employed a data envelopment analysis of the slack-based measurement (SBM) for bad output to assess the transport energy efficiency of 19 countries under the BRI economic corridors. By using the most cited transport-related input variables, such as vehicles, labor, motor oil, jet fuel, and natural gas, this study first analyzes the transport energy efficiency by first assuming the output variables individually and then takes two years as a pre- and post-BRI case by considering the aggregated output model. The results show an increase in economic activity but a decline in transport energy efficiency in terms of consumption and emissions.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
transport energy
belt and road initiative
economic corridors
slack-based measurement
data envelopment analysis (DEA)
Megjelenés:Energies. - 13 : 10 (2020), p. 1-20. -
További szerzők:Popp József (1955-) (közgazdász) Khan, Hameed Khan, Muhammad Asif (1976-) (közgazdász) Oláh Judit (1973-) (agrárközgazdász, logisztika)
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2.

001-es BibID:BIBFORM110162
035-os BibID:(Cikkazonosító)6538 (WOS)000602783100001 (Scopus)85099931867
Első szerző:Akbar, Usman
Cím:Trade-Offs for the optimal energy efficiency of road transportation: Domestic cases in developing countries / Usman Akbar, Muhammad Asif Khan, Marryum Akmal, Éva Zsuzsanna Tóth Naárné, Judit Oláh
Dátum:2020
ISSN:1996-1073
Megjegyzések:The increase in domestic transportation in developing countries may adversely affect the energy efficiency of road transportation due to effective productivity and carbon dioxide emissions (CO2). When evaluating quantitatively the countries on the efficiency frontier, poor efficiency can still be seen sometimes due to the slack available in undesirable output measures. This paper uses desirable and undesirable output variables, such as passenger-kilometers (PKM), tones-kilometers (TKM), and carbon dioxide (CO2), to compute the weakly efficient decision-making units (DMUs). The data envelopment analysis (DEA) technology is used to assess the efficiencies of the decision-making units (DMUs), which are countries in our case. Then, the trade-off method with efficient binding surfaces is used to attain the optimal efficiencies of the weakly efficient DMUs. The marginal rates aid this trade-off analysis. Resultantly, such marginal trade-offs do not deteriorate the efficiency of the DMUs below the frontier line. We calculate the maximum change (margin) in a specific variable amount when another variable`s amount is changed. Thus, such a computation gives us different margins, with which each output variable can be a traded off to bring a DMU further toward the closest optimal point possible. The marginal trade-off can help the managers and policymakers in effective decision-making, and it is further recommended to address efficiency damages (by the undesired outputs).
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
data envelopment analysis
trade-offs
efficiency
road transportations
Megjelenés:Energies. - 13 : 24 (2020), p. 1-14. -
További szerzők:Khan, Muhammad Asif (1976-) (közgazdász) Akmal, Marryum Naárné Tóth Éva Zsuzsanna Oláh Judit (1973-) (agrárközgazdász, logisztika)
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3.

001-es BibID:BIBFORM100830
035-os BibID:(cikkazonosító)2003 (WoS)000775560000001 (Scopus)85128085838
Első szerző:Assad, Ussama
Cím:Smart Grid, Demand Response and Optimization: A Critical Review of Computational Methods / Ussama Assad, Muhammad Arshad Shehzad Hassan, Umar Farooq, Asif Kabir, Muhammad Zeeshan Khan, S. Sabahat H. Bukhari, Zain ul Abidin Jaffri, Judit Oláh, József Popp
Dátum:2022
ISSN:1996-1073
Megjegyzések:In view of scarcity of traditional energy resources and environmental issues, renewable energy resources (RERs) are introduced to fulfill the electricity requirement of growing world. Moreover, the effective utilization of RERs to fulfill the varying electricity demands of customers can be achieved via demand response (DR). Furthermore, control techniques, decision variables and offered motivations are the ways to introduce DR into distribution network (DN). This categorization needs to be optimized to balance the supply and demand in DN. Therefore, intelligent algorithms are employed to achieve optimized DR. However, these algorithms are computationally restrained to handle the parametric load of uncertainty involved with RERs and power system. Henceforth, this paper focuses on the limitations of intelligent algorithms for DR. Furthermore, a comparative study of different intelligent algorithms for DR is discussed. Based on conclusions, quantum algorithms are recommended to optimize the computational burden for DR in future smartgrid.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Energies. - 15 : 6 (2022), p. 1-36. -
További szerzők:Hassan, Muhammad Arshad Shehzad Farooq, Umar Kabir, Asif Khan, Muhammad Zeeshan Bukhari, S. Sabahat H. Jafri, Zain ul Abidin Oláh Judit (1973-) (agrárközgazdász, logisztika) Popp József (1955-) (közgazdász)
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4.

001-es BibID:BIBFORM106218
035-os BibID:(cikkazonosító)611 (WOS)000917480200001 (Scopus)85146657723
Első szerző:Chalgynbayeva, Aidana
Cím:Worldwide research trends in agrivoltaic systems : a bibliometric review / Aidana Chalgynbayeva, Zoltán Gabnai, Péter Lengyel, Albiona Pestisha, Attila Bai
Dátum:2023
ISSN:1996-1073
Megjegyzések:An agrovoltaic system combines agricultural crop production and energy production in the same place, emphasizing the dual use of land. This article provides a bibliometric analysis of agrivoltaic topics based on publications indexed in SCOPUS, in which either economic assessments of agrivoltaics, agrivoltaic systems for crops and livestock animals, photovoltaic greenhouse and agrivoltaics with open field are discussed, or its ideas are used to analyze certain locations. A bibliometric analysis was conducted using the SCOPUS database. Multiple bibliometric tools, such as R Studio and Biblioshiny, were applied to analyze data for this study. Finally, 121 relevant articles were obtained and reviewed. The results show that the focus topic is a brand-new research area, with the majority of relevant scientific publications concentrated in the last three years, and with much ongoing research. This is why AV-specialized scientific conferences might be the best place to get relevant and up-to-date information, with the highest number being offered in the USA and China. A typical trend in recent years has been researched, focusing on different agricultural aspects. The research results show that scientific publications in recent years mainly focus on short-term predictions, there is no recognized evaluation standard for various prediction analyses, and it is difficult to evaluate various prediction methods so far.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Energies. - 16 : 2 (2023), p. 1-25. -
További szerzők:Gabnai Zoltán (1988-) (gazdasági agrármérnök) Lengyel Péter (1976-) (matematika tanár, informatikus, közgazdász) Pestisha, Albiona Bai Attila (1967-) (agrár-közgazdász)
Pályázati támogatás:TKP2021-NKTA-32
Egyéb
2019-2.1.13-TÉT_IN-2020-00061
Egyéb
ELKH-11016 High Tech Technologies for the Sustainable Management
Egyéb
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5.

001-es BibID:BIBFORM100534
035-os BibID:(cikkazonosító)1385 (WoS)000767158400001 (Scopus)85124909467
Első szerző:Hassan, Muhammad Arshad Shehzad
Cím:Dynamic Price-Based Demand Response through Linear Regression for Microgrids with Renewable Energy Resources / Muhammad Arshad Shehzad Hassan, Ussama Assad, Umar Farooq, Asif Kabir, Muhammad Zeeshan Khan, S. Sabahat H. Bukhari, Zain ul Abidin Jaffri, Judit Oláh, József Popp
Dátum:2022
ISSN:1996-1073
Megjegyzések:The green innovations in the energy sector are smart solutions to meet the excessive power requirements through renewable energy resources (RERs). These resources have forwarded the revolutionary relief in control of carbon dioxide gaseous emissions from traditional energy resources. The use of RERs in a heuristic manner is necessary to meet the demand side management in microgrids (MGs). The pricing scheme limitations hinder the profit maximization of MG and their customers. In addition, recent pricing schemes lack mechanistic underpinning. Therefore, a dynamic electricity pricing scheme through linear regression is designed for RERs to maximize the profit of load customers (changeable and unchangeable) in MG. The demand response optimization problem is solved through the particle swarm optimization (PSO) technique. The proposed dynamic electricity pricing scheme is evaluated under two different scenarios. The simulation results verified that the proposed dynamic electricity pricing scheme sustained the profit margins and comforts for changeable and unchangeable load customers as compared to fixed electricity pricing schemes in both scenarios. Hence, the proposed dynamic electricity pricing scheme can readily be used for real microgrids (MGs) to grasp the goal for cleaner energy production.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Energies. - 15 : 4 (2022), p. 1-17. -
További szerzők:Assad, Ussama Farooq, Umar Kabir, Asif Khan, Muhammad Zeeshan Bukhari, S. Sabahat H. Jafri, Zain ul Abidin Oláh Judit (1973-) (agrárközgazdász, logisztika) Popp József (1955-) (közgazdász)
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6.

001-es BibID:BIBFORM095544
035-os BibID:(cikkazonosító)3923 (WoS)000671356400001 (Scopus)85110040621
Első szerző:Khan, Dilawar
Cím:Link between Technically Derived Energy Efficiency and Ecological Footprint: Empirical Evidence from the ASEAN Region / Dilawar Khan, Muhammad Nouman, József Popp , Muhammad Asif Khan, Faheem Ur Rehman, Judit Oláh
Dátum:2021
ISSN:1996-1073
Megjegyzések:The sustainable environment has been a desired situation around the world for the last few decades. Environmental contaminations can be a consequence of various economic activities. Different socio-economic factors influence the environment positively or negatively. Many previous studies have resulted in the efficient allocation of inputs as an environment-friendly component. This paper investigates the effects of energy efficiency on ecological footprint in the ASEAN region using balanced panel data from 2001 to 2019. First, this paper technically derives the energy efficiency, using the stochastic frontier analysis (SFA) of the translog production type of single output and multiple inputs. Findings of the SFA show that the Philippines and Singapore have the highest energy efficiency (94%) and Laos has the lowest energy efficiency (85%) in the ASEAN region. The estimated average efficiency score of the ASEAN region was around 90%, ranging from 85% to 96%, indicating that there is still 10% room for improvement in energy efficiency. Second, this study employed the panel autoregressive distributed lag (ARDL) model to explore the short run and long run impact of technically derived energy efficiency on ecological footprint in the ASEAN region. Results of the panel ARDL model show that energy efficiency is a reducing factor of ecological footprint in the long run. Moreover, energy efficiency plays a significant role to control the environmental contaminations. In addition, results of this study also explored that urbanization is an increasing factor of ecological footprint, and investment in agriculture is also beneficial for the environment. Moreover, to obtain the directional nature of the associations between the ecological footprint and its independent variables, this paper has employed the paired-panel Granger causality test. The results of the paired wise panel Granger causality test also confirm that the energy efficiency, urbanization, and investment in agriculture cause ecological footprint. Finally, this study recommends that efficient utilization of energy resources as well as investment in agriculture are necessary for sustainable environment.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Energies. - 14 : 13 (2021), p. 1-16. -
További szerzők:Nouman, Muhammad Popp József (1955-) (közgazdász) Khan, Muhammad Asif (1976-) (közgazdász) Rehman, Faheem Ur Oláh Judit (1973-) (agrárközgazdász, logisztika)
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7.

001-es BibID:BIBFORM082895
035-os BibID:(cikkazonosító)407 (WoS)000520432300121 (Scopus)85078110836
Első szerző:Mariyakhan, Kamalova
Cím:Does the Level of Absorptive Capacity Matter for Carbon Intensity? Evidence from the USA and China / Kamalova Mariyakhan, Elyas Abdulahi Mohamued, Muhammad Asif Khan, József Popp, Judit Oláh
Dátum:2020
ISSN:1996-1073
Megjegyzések:Interest in the rapid growth of CO2 emissions, together with the economic performance of various countries continues to attract researchers and practitioners' interest. Alongside, concerns regarding global warming and its effects on human and animal health, and thus sustainable development, escalate. The present study employs the nonlinear autoregressive distributed lag to identify short- and long-run dynamics and the asymmetric nexus between absorptive capacity, and CO2 emissions intensity from 1970 to 2018 in the case of the USA and China. In the short-run, an increase in technology transfer based on human resources increases CO2 emissions in China. Contrarily, the decrease in technology transfer based on infrastructure has an emissions-decreasing effect in China. In the long-run, the effects of an increase in absorptive capacity based on innovation and infrastructure developments provide positive and significant impetus to mitigate the carbon intensity in China and the USA. The results are robust using GHG intensity. Thus, policymakers and researchers have to consider the pivotal role of absorptive capacity in facilitating sustainable development.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
absorptive capacity
carbon intensity
sustainable economic growth
innovation
infrastructure developments
Megjelenés:Energies. - 13 : 2 (2020), p. 1-19. -
További szerzők:Elyas Abdulahi, Mohamued (1976-) (közgazdász) Khan, Muhammad Asif (1976-) (közgazdász) Popp József (1955-) (közgazdász) Oláh Judit (1973-) (agrárközgazdász, logisztika)
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8.

001-es BibID:BIBFORM074732
035-os BibID:(cikkazonosító)1135 (WoS)000435610300113 (Scopus)85047078463
Első szerző:Nagy Dávid
Cím:Economic Analysis of Pellet Production in Co-Digestion Biogas Plants / Dávid Nagy, Péter Balogh, Zoltán Gabnai, József Popp, Judit Oláh, Attila Bai
Dátum:2018
ISSN:1996-1073
Megjegyzések:In our paper we examine the economics of a technological process which utilizes the separated biogas plant digestate as the primary material and, as auxiliary material, the waste heat produced by the cogeneration process, to produce a marketable pellet which can be used in two ways (to supply soil nutrients and heat energy). Using multivariate linear regression model we developed an equation for the biogas yield from the modelled production recipe and expected nutrient pellet prices, and sensitivity analysis were also performed for the substrate dry matter content. We found that pellets can be produced at a cost of 88?90 EUR/ton with a 6 to 10% dry matter substrate content and that, primarily, sales of pellets for heating justify pelleting; producer's own use and use for nutrient purposes can only be justified in exceptional cases. In the case of dry solid content above 5%, the process does not require the total amount of waste heat; some of this can be used to cover other heat requirements
Tárgyszavak:Társadalomtudományok Közgazdaságtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
biogas
manure
economics
pellet
waste heat
Megjelenés:Energies. - 11 : 5 (2018), p. 1-21. -
További szerzők:Balogh Péter (1970-) (agrármérnök) Gabnai Zoltán (1988-) (gazdasági agrármérnök) Popp József (1955-) (közgazdász) Oláh Judit (1973-) (agrárközgazdász, logisztika) Bai Attila (1967-) (agrár-közgazdász)
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9.

001-es BibID:BIBFORM095735
035-os BibID:(cikkazonosító)4366 (WoS)000676357000001 (Scopus)85111469766
Első szerző:Oláh Judit (agrárközgazdász, logisztika)
Cím:Positioning Bio-Based Energy Systems in a Hypercomplex Decision Space : A Case Study / Oláh Judit, Popp József, Duleba Szabolcs, Kiss Anna, Lakner Zoltán
Dátum:2021
ISSN:1996-1073
Megjegyzések:The optimization of the energy portfolio for a small, open, landlocked economy with rather limited fossil resources is a complex task because it must find a long-range, sustainable balance between the various goals of society under the constant pressure of different interest groups. The opinions of independent, informed experts could be an essential input in the decision-making process. The goal of this research was to determine the relative importance of the values and goals potentially accompanying projects, based on the utilization of bioenergy. The current research is based on a wide-ranging survey of 65 non-partisan experts, applying the Pareto analytic hierarchy process to ensure the unbiased prioritization of project segments. The results of the survey put a spotlight on the importance of the economic role of bioenergy projects. Contrary to previous expectations and considerations, the social functions of these projects have hitherto been given relatively little importance. The results highlight the importance of bioenergy in increasing the income-generating capacity of agricultural producers by optimal utilization of natural resources for agricultural production. This can be achieved without considerable deterioration of the natural environment. Modern agricultural production is characterized by high levels of mechanization and automatization. Under these conditions, the social role of bioenergy projects (job creation) is rather limited.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Energies. - 14 : 14 (2021), p. 1-23. -
További szerzők:Popp József (1955-) (közgazdász) Duleba Szabolcs (1978-) Kiss Anna Lakner Zoltán (1959-) (közgazdász)
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10.

001-es BibID:BIBFORM085489
035-os BibID:(cikkazonosító)2323 (WoS)000535739300201 (Scopus)85086140242
Első szerző:Oláh Judit (agrárközgazdász, logisztika)
Cím:PRISMA Statement for Reporting Literature Searches in Systematic Reviews of the Bioethanol Sector / Oláh Judit, Krisán Eszter, Kiss Anna, Lakner Zoltán, Popp, József
Dátum:2020
ISSN:1996-1073
Megjegyzések:The bioethanol sector is an extremely complex set of actors, technologies and market structures, influenced simultaneously by different natural, economic, social and political processes. That is why it lends itself to the application of system dynamics modelling. In last five years a relatively high level of experience and knowledge has accumulated related to the application of computer-aided system modelling for the analysis and forecasting of the bioethanol sector. The goal of the current paper is to offer a systematic review of the application of system dynamics models in order to better understand the structure, conduct and performance of the bioethanol sector. Our method has been the preferred reporting items for systematic reviews and meta-analyses (PRISMA), based on English-language materials published between 2015 and 2020. The results highlight that system dynamic models have become more and more complex, but as a consequence of the improvement in information technology and statistical systems, as well as the increasing experience gained they offer an efficient tool for decision makers in the business and political spheres. In the future, the combination of traditional system dynamics modelling and agent-based models will offer new perspectives for the preparation of more sophisticated description and forecasting.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Energies. - 13 : 9 (2020), p. 1-34. -
További szerzők:Krisán Eszter Kiss Anna (1989-) (közgazdász) Lakner Zoltán (1959-) (közgazdász) Popp József (1955-) (közgazdász)
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11.

001-es BibID:BIBFORM106582
035-os BibID:(cikkazonosító)862 (WoS)000917482100001 (Scopus)85146683842
Első szerző:Pestisha, Albiona
Cím:On-Farm renewable energy systems : A systematic review / Albiona Pestisha, Zoltán Gabnai, Aidana Chalgynbayeva, Péter Lengyel, Attila Bai
Dátum:2023
ISSN:1996-1073
Megjegyzések:Over the years, energy is becoming an essential factor with an impact on social, economic, and environmental aspects. More than 2.5 billion people are connected to agriculture worldwide, so the importance of agricultural energy production has become increasingly important. This study provides a comprehensive review of renewable energy, environment, and farm publication trends. Two hundred articles from 1988 to 2022 were analyzed, with special attention devoted to the last three extreme years, using the Scopus database and the Bibliometrix tool for analysis and visualization. Research on this topic experienced significant developments after 2008, with many fluctuations being revealed. Historically, China and the USA were the most productive countries in agricultural energy production advancements. However, in the last three years, the research center`s respective contributions have undergone major changes. China maintained its dominance, but the importance of the USA fell sharply, and new centers (India, Poland) appeared. Biogas is the most popular method which is used and searched in this area between 1988-2022 since it includes both sustainability and locality. However, between 2020-2022, the importance of the circular economy has been highlighted in the literature. Complex energy systems, dual use of land, and energy storage might be the most important challenges for future research.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Energies. - 16 : 2 (2023), p. 1-25. -
További szerzők:Gabnai Zoltán (1988-) (gazdasági agrármérnök) Chalgynbayeva, Aidana Lengyel Péter (1976-) (matematika tanár, informatikus, közgazdász) Bai Attila (1967-) (agrár-közgazdász)
Pályázati támogatás:National Research, Development and Innovation Fund of Hungary: 2019-2.1.13-TÉT_IN-2020-00061;
Egyéb
National Research, Development and Innovation Fund of Hungary: TKP2021-NKTA-32;
Egyéb
Eötvös Loránd Research Network: ELKH-11016 High Tech Technologies for the Sustainable Management
Egyéb
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12.

001-es BibID:BIBFORM075108
035-os BibID:(cikkazonosító)2392 (WoS)000446604500213 (Scopus)85053891408
Első szerző:Popp József (közgazdász)
Cím:The relationship between prices of various metals, oil and scarcity / József Popp, Judit Oláh, Mária Farkas Fekete, Zoltán Lakner, Domicián Máté
Dátum:2018
ISSN:1996-1073
Megjegyzések:No consensus has been reached on the problem of solving resource depletion. A recognition of the fact that resources are not endless and the Earth is a finite globe reinforces the idea that the vision of continuous economic growth is not sustainable over time. The aim of this paper is to examine the efficacy of real prices as an indicator of metals and oil in consideration of growth tendencies in the Consumer Price Indexes. In addition, enhancing the current literature on commodity price interrelationships, the main contribution of this study is the substitution of different proxies in order to justify the effect of scarcity and crude oil changes on the examined metal group prices. In order to demonstrate the usefulness of scarcity as an indicator of real price deviations, the study has been conducted involving various non-renewable metals, i.e., copper, molybdenum, zinc, gold and platinum group metals. The real price indices and metal prices of the US market are constructed between 1913 and 2015. Moreover, additional econometric analyses are also carried out to discover whether prices of various metals associate with oil prices and scarcity, as the proxy of reserves-to-production ratio. The linear regression results seem to suggest that the effects of the R/P ratios are negatively correlated with each of the examined precious (gold, PGMs), mass consumable (copper, zinc) and doping agent (molybdenum) metals from 1991 to 2015. An increase in oil-prices is positively associated with the price levels of each non-renewable resource in the short-run. The findings of multivariate co-integration and Granger causality tests also suggest that pairwise and direct relationships among these variables seem to arise in the long-run. These findings indicate essential questions that must be addressed by future generations in order to appropriately solve scarcity problems.
Tárgyszavak:Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
scarcity
reserves
real prices
non-renewable resources
inflation
energy policies
Megjelenés:Energies. - 11 : 9 (2018), p. 1-19. -
További szerzők:Oláh Judit (1973-) (agrárközgazdász, logisztika) Farkasné Fekete Mária (1951-) (közgazdász) Lakner Zoltán (agrárökonómia) Máté Domicián (1976-) (közgazdász, informatika tanár)
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