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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: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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Intézményi repozitóriumban (DEA) tárolt változat
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3.

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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4.

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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Intézményi repozitóriumban (DEA) tárolt változat
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5.

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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6.

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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7.

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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8.

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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