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Artykuły w czasopismach na temat „Energy policy Australia Mathematical models”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 28 stycznia 2023

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Elghaish, Faris, M. Reza Hosseini, Saeed Talebi, Sepehr Abrishami, Igor Martek, and Michail Kagioglou. "Factors Driving Success of Cost Management Practices in Integrated Project Delivery (IPD)." Sustainability 12, no. 22 (November 16, 2020): 9539. http://dx.doi.org/10.3390/su12229539.

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Integrated project delivery (IPD) is a mode of project procurement recognised as facilitating superior project performance. However, this success is contingent on effective cost management practices that share cost data with all project stakeholders in an accurate, timely and transparent manner. Despite an extensive literature on aspects of cost management, none identifies the essential ingredients required of an effective cost management system, sufficiently robust to support successful IPD projects. Candidate cost management augmenting practices are drawn from the literature, and presented f

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Kim, Hu Gon, Yong Joo Chung, and Chun Hyun Paik. "Mathematical Constraints Representation for Bottom-Up Approaches to Climate Policy Modeling." Advanced Materials Research 734-737 (August 2013): 3133–36. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.3133.

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For analyzing the effect of GHG abatement policies, bottom-up models including MARKAL, MESSAGE, AIM etc. are widely used. These models are normally based on LP(linear programming) optimization, and are trying to find both the minimal cost combination of technologies and energy flows while satisfying the demands. This study investigates representative constraints needed for analysing GHG abatement policies, proposes how to implement these constraints in bottom-up modeling.

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Kolosok, Svitlana, Tetyana Pimonenko, Alona Yevdokymova, Nazim Ozbey Hajiyev, Maksym Palienko, and Lesya Prasol. "Energy efficiency policy: impact of green innovations." Marketing and Management of Innovations, no. 4 (2020): 50–60. http://dx.doi.org/10.21272/mmi.2020.4-04.

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The European energy policy is a core role in the development of the new model of the energy market and carbon-free economy in Ukraine. In the paper, the authors analyzed the key issues on the way to implement the European policy on increasing energy efficiency and green innovations which emphasized in pro et contra. The performance of national energy policy could be limited by the market instruments, the efficiency of the smart grid and perception of innovations in the energy sectors, institutional development in general. Thus, the paper aimed to indicate the impact of green innovations on sus

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Makarov, V. "The Symbiosis of Economic Science and Practice in Reforming (On the Book by S. Ya. Chernavsky “Reforms of the Energy Regulated Branches in Russia”)." Voprosy Ekonomiki, no. 10 (October 20, 2014): 114–24. http://dx.doi.org/10.32609/0042-8736-2014-10-114-124.

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The book by S. Chernavsky is devoted to the reform of the Russian energy sector and the economy as a whole. The author assesses in detail carried out reforms and develops policy recommendations in the interest of the society. In some chapters of this book the author plays the role of an analyst, in the others - that of one of the participants directly involved in the reform or its main developer. In all cases, the analysis is combined with the use of modern economic theory, mathematical models of the behavior of economic agents and empirical data. Many mathematical models presented have been d

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Duan, Jon, G. Cornelis van van Kooten, and A. T. M. Hasibul Islam. "Calibration of Grid Models for Analyzing Energy Policies." Energies 16, no. 3 (January 23, 2023): 1234. http://dx.doi.org/10.3390/en16031234.

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Intermittent forms of renewable energy destabilize electricity grids unless adequate reliable generating capacity and storage are available, while instability of hybrid electricity grids and cost fluctuations in fossil fuel prices pose further challenges for policymakers. We examine the interaction between renewable and traditional fossil-fuel energy sources in the context of the Alberta electricity grid, where policymakers seek to eliminate coal and reduce reliance on natural gas. We develop a policy model of the Alberta grid and, unlike earlier models, calibrate the cost functions of thermal

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Robin, Libby. "Uncertain Seasons in the El Niño Continent: Local and Global Views." Australia, no. 28/3 (January 15, 2019): 7–19. http://dx.doi.org/10.7311/0860-5734.28.3.02.

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As global climate change shifts seasonal patterns, local and uncertain seasons of Australia have global relevance. Australia’s literature tracks extreme local weather events, exploring ‘slow catastrophes’ and ‘endurance.’ Humanists can change public policy in times when stress is a state of life, by reflecting on the psyches of individuals, rather than the patterns of the state. ‘Probable’ futures, generated by mathematical models that predict nature and economics, have little to say about living with extreme weather. Hope is not easily modelled. The frameworks that enable hopeful futures are

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Onyx, Jenny, Liz Cham, and Bronwen Dalton. "Current Trends in Australian Nonprofit Policy." Nonprofit Policy Forum 7, no. 2 (June 1, 2016): 171–88. http://dx.doi.org/10.1515/npf-2015-0023.

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AbstractThere has been a large growth in nonprofits in Australia over the past 30 years. This paper will chart some of the key current policy trends that have helped shape the sector. The huge investment in the nonprofit sector by government, particularly since the mid 1990s coincided with a strong ideological shift to a neoliberal economic agenda. There was a concerted effort to bring nonprofits under the control of government policy. This has lead to greater competition among nonprofits, the growth of large charities at the expense of small local organisations, and a greater emphasis on adop

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Tonn, B. E. "A Method for the Nonstatistical Assessment of Behaviorally-Based Policy Models." Environment and Planning A: Economy and Space 20, no. 5 (May 1988): 669–79. http://dx.doi.org/10.1068/a200669.

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Advanced computer-technology, sophisticated econometric computer-software, and the increasing availability of disaggregated data have all facilitated the development and use, for planning and policy analysis, of statistically-estimated mathematical models of human behavior. In this paper the author presents a method to judge subjectively the quality of these models and illustrates how the results of the method can be used, with statistical measures of the quality of a model, as indicators of the predictive abilities of the model. Ideas are drawn from the literature on artificial intelligence,

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Lau, Henry. "Monitoring Quality of Components by Fuzzy Control Principle." International Journal of Reliability, Quality and Safety Engineering 05, no. 02 (June 1998): 133–45. http://dx.doi.org/10.1142/s0218539398000145.

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A fuzzy expert system uses fuzzy logic control,1 which is based on a "superset" of Boolean logic that has been extended to handle the concept of "partial truth." It replaces mathematical models with models that are built from a number of rules with fuzzy variables such as output temperature, and fuzzy terms such as extremely hot, fairly cold. A fuzzy expert system has been implemented in a plastic moulding shop in Australia for monitoring dimensional quality of output products. Because these plastic parts are used as assembly components for production of gear boxes, their dimensional accuracy

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White, DH, and PJ Bowman. "Economics of feeding energy-based supplements to grazing ewes before mating in order to increase the reproduction rate of a wool-producing flock." Australian Journal of Experimental Agriculture 27, no. 1 (1987): 11. http://dx.doi.org/10.1071/ea9870011.

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The financial wisdom of feeding energy-based supplements to ewes before mating to increase fecundity was evaluated using mathematical models of sheep production systems. It was concluded that, for a wool-producing enterprise in southern Australia, feeding supplements to ewes pre-mating is likely to be highly unprofitable. This is partly because relatively few ewes would have extra ova and also because multiple embryos and lambs have a lower probability of survival than single embryos and lambs. Further more, the extra lambs reared would be associated with an increase in grazing pressure which

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Moore, Trivess, and Andréanne Doyon. "The Uncommon Nightingale: Sustainable Housing Innovation in Australia." Sustainability 10, no. 10 (September 28, 2018): 3469. http://dx.doi.org/10.3390/su10103469.

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There is a need to deliver more environmentally and socially sustainable housing if we are to achieve a transition to a low carbon future. There are examples of innovative and sustainable housing emerging around the world which challenge the deeper structures of the existing housing regime. This paper uses the analysis of socio-technical dimensions of eco-housing presented by Smith to explore the development of an emerging sustainable housing model known as Nightingale Housing in Australia within a sustainability transitions framing. While there were several similarities to Smith’s analysis (e

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THOMAS, EMMA G., HANNAH E. BARRINGTON, KAMALINI M. LOKUGE, and GEOFFRY N. MERCER. "MODELLING THE SPREAD OF TUBERCULOSIS, INCLUDING DRUG RESISTANCE AND HIV: A CASE STUDY IN PAPUA NEW GUINEA’S WESTERN PROVINCE." ANZIAM Journal 52, no. 1 (July 2010): 26–45. http://dx.doi.org/10.1017/s1446181111000587.

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AbstractHigh tuberculosis (TB) prevalence in Papua New Guinea (PNG) is a serious public health concern. The epidemic in this region is exacerbated by the presence of drug-resistant TB strains as well as HIV infection. This presents a public health threat not only locally but also to Australia due to the high potential for cross-border transmission between PNG’s Western Province and the Australian Torres Strait Islands. We present two mathematical models of TB in the Western Province: a simple model of the underlying TB dynamics, and a detailed model which accounts for the additional effects of

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Wright, Simon, Mark Frost, Alfred Wong, and Kevin A. Parton. "Australian Renewable-Energy Microgrids: A Humble Past, a Turbulent Present, a Propitious Future." Sustainability 14, no. 5 (February 23, 2022): 2585. http://dx.doi.org/10.3390/su14052585.

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As the global energy market undergoes a wholesale transformation accelerated by the need to decarbonise, a rapid transition to renewable energy and the mass deployment of distributed energy resources, autonomous energy networks or microgrids are emerging as an attractive mechanism for the delivery of electricity to end users. Yet in Australia, at least, relatively little is known about key aspects of microgrids that are fundamental to their successful deployment, not least the more commercial and economic elements rather than the purely technical. Drawing on the extant global literature on mic

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Barragán-Escandón, Antonio, Jonathan Miguel Olmedo Ruiz, Jonnathan David Curillo Tigre, and Esteban F. Zalamea-León. "Assessment of Power Generation Using Biogas from Landfills in an Equatorial Tropical Context." Sustainability 12, no. 7 (March 28, 2020): 2669. http://dx.doi.org/10.3390/su12072669.

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This work evaluates the biogas production potential of the Ceibales landfill for feeding a power plant in the southern region of Ecuador. Biogas production is estimated through mathematical models that consider energy generation and technologies available to supply electricity plants. Characteristic landfill data are accounted for to analyze and develop these mathematical models. Once the generation capability of each source is identified, a decision can be made on the most suitable electricity generation technology. A local model (Ecuadorian model) is applied to calculate the potential of bio

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Kuzmin, Anton. "Mathematical Exchange Rates Modeling: Equilibrium and Nonequilibrium Dynamics." Mathematics 10, no. 24 (December 9, 2022): 4672. http://dx.doi.org/10.3390/math10244672.

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The development of the author’s concept of the International Flows Equilibrium Exchange Rate (IFEER) is the basis for the mathematical exchange rate modeling of two interconnected equal economies. IFEER-concept allows modeling the exchange rate dynamics of relatively medium-term equilibrium and short- and long-term disequilibrium. Discrete and integral versions of the concept are the basis for further modeling. New structural models of medium-, short- and long-term dynamics and new final structural dependencies of the exchange rate on the system of fundamental factors are the main results. The

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Rabe, Marcin, Dalia Streimikiene, and Yuriy Bilan. "The Concept of Risk and Possibilities of Application of Mathematical Methods in Supporting Decision Making for Sustainable Energy Development." Sustainability 11, no. 4 (February 15, 2019): 1018. http://dx.doi.org/10.3390/su11041018.

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This study is devoted to presentation of the concept of risk, and the possibility of applying mathematical methods in supporting decision making in the energy sector to promote sustainable energy development. The problem with risk assessment in the energy sector arises mainly due to the difficulty of expressing risk in numerical terms. To avoid risk, it is necessary to set the criteria and objectives of measurement before making decisions in the energy sector. The aim of this study is to try to fill in this gap by means of comparing decisions under risk conditions within models supporting ener

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Chen, Shiyi, Wei Chen, Ahsanullah Soomro, Lijuan Luo, and Wenguo Xiang. "Multi-objective economic emission dispatch of thermal power plants based on grey relational analysis and analytic hierarchy process." Energy & Environment 31, no. 5 (October 20, 2019): 785–812. http://dx.doi.org/10.1177/0958305x19882387.

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In this paper, mathematical models for a synthesized evaluation were established according to grey relational analysis and analytic hierarchy process. The models were used to select a power dispatch scheme considering hierarchies of material consumption, electrical efficiency, exergy efficiency, and environmental benefit. Four unit dispatch schemes, i.e., proportional fair allocation dispatch, conventional economic dispatch, economic emission dispatch, and economic emission dispatch with varied weights were investigated and compared. Analytic hierarchy process decision-making approach has been

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Kiani, Adiqa Kausar, Wasim Ullah Khan, Muhammad Asif Zahoor Raja, Yigang He, Zulqurnain Sabir, and Muhammad Shoaib. "Intelligent Backpropagation Networks with Bayesian Regularization for Mathematical Models of Environmental Economic Systems." Sustainability 13, no. 17 (August 25, 2021): 9537. http://dx.doi.org/10.3390/su13179537.

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The research community of environmental economics has had a growing interest for the exploration of artificial intelligence (AI)-based systems to provide enriched efficiencies and strengthened human knacks in daily live maneuvers, business stratagems, and society evolution. In this investigation, AI-based intelligent backpropagation networks of Bayesian regularization (IBNs-BR) were exploited for the numerical treatment of mathematical models representing environmental economic systems (EESs). The governing relations of EESs were presented in the form of differential models representing their

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Amaris, Gloria, Richard Dawson, Jorge Gironás, Stephane Hess, and Juan de Dios Ortúzar. "From mathematical models to policy design: Predicting greywater reuse scheme effectiveness and water reclamation benefits based on individuals’ preferences." Sustainable Cities and Society 74 (November 2021): 103132. http://dx.doi.org/10.1016/j.scs.2021.103132.

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Hayat, Mubashir, Bashir Salah, Misbah Ullah, Iftikhar Hussain, and Razaullah Khan. "Shipment Policy for an Economic Production Quantity Model Considering Imperfection and Transportation Cost." Sustainability 12, no. 21 (October 28, 2020): 8964. http://dx.doi.org/10.3390/su12218964.

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Determining replenishment lot size and number of shipments in a traditional production setup has been of great interest among researchers during the last decades. In order to survive modern competition, the manufacturer has to make good decisions about the lot size that is to be shipped to the retailer. Recently, several researchers have developed mathematical models for modelling different real-world situations; however, these models are lacking due to a combination of imperfection in process and shipment lot sizing. Therefore, in the proposed research, shipment policy for an imperfect produc

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Sanin-Villa, Daniel. "Recent Developments in Thermoelectric Generation: A Review." Sustainability 14, no. 24 (December 15, 2022): 16821. http://dx.doi.org/10.3390/su142416821.

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The world’s growing energy demand poses several concerns regarding the rational and efficient use of energy resources. This is also the case for many industrial processes, where energy losses and particularly thermal losses are common. Thermoelectric generators offer an alternative to address some of these challenges by recovering wasted heat and thereby increasing the overall efficiency of these processes. However, the successful operation of the thermoelectrical modules meant to carry this process is only possible when pairing these to an external control system; such a system plays an impor

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Austin, Oshin Ola. "Advanced Control And Development of Hydro and Diesel Generator Hybrid Power System Models for Renewable Energy Microgrids." Journal La Multiapp 2, no. 3 (August 11, 2021): 16–32. http://dx.doi.org/10.37899/journallamultiapp.v2i3.383.

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The Nigerian power problem resulted to incessant and erratic supply of electricity and this has destroyed many industrial processes in the country. It has reduced productivity and has increased unemployment rate in the country to over 50million (this figure is over 70% of Nigerian youths). This has led many of the youths in the country to crime. It has led to the deaths of many innocent people in the country. As of 2016, the electricity energy consumption in the world from the world fact book revealed that the average power per capita (watts per person) in the United States is 1,377 Watts. In

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Malik, Shariful, Mohammad Shahidul Hasan Swapan, and Shahed Khan. "Sustainable Mobility through Safer Roads: Translating Road Safety Strategy into Local Context in Western Australia." Sustainability 12, no. 21 (October 27, 2020): 8929. http://dx.doi.org/10.3390/su12218929.

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Road safety is an ongoing challenge to sustainable mobility and transportation. The target set by the Sustainable Development Goals (SDGs) suggests reframing the issue with a broader outlook and pragmatic system. Unlike previous road safety strategies and models that favour engineering solutions and legal instruments, there is an increasing need to consider local context and complexities. While such principles have been increasingly featured in higher-level policy frameworks in national or state-level strategies (e.g., Safe System or Vision Zero approach), an effort to translate them into impl

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Harish, V. S. K. V., Arun Kumar, Tabish Alam, and Paolo Blecich. "Assessment of State-Space Building Energy System Models in Terms of Stability and Controllability." Sustainability 13, no. 21 (October 28, 2021): 11938. http://dx.doi.org/10.3390/su132111938.

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Building energy management system involves the development of control strategies for the heating, ventilation, and air-conditioning (HVAC), as well as lighting, systems. Building energy modeling is a significant part of designing such strategies. In order to analyze the feasibility of a building energy system model for any desired control strategy, a mathematical assessment tool is developed in this paper. A multi-input multi-output (MIMO) building energy system model, consisting of an outdoor wall, an external wall, two partition walls, one roof, and a ceiling, has been considered as the virt

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YEH, RUEY HUEI, and MING-YUH CHEN. "OPTIMAL PREVENTIVE-MAINTENANCE WARRANTY POLICIES FOR REPAIRABLE PRODUCTS WITH AGE-DEPENDENT MAINTENANCE COSTS." International Journal of Reliability, Quality and Safety Engineering 12, no. 02 (April 2005): 111–25. http://dx.doi.org/10.1142/s0218539305001720.

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This paper develops a mathematical model to derive the optimal preventive maintenance warranty (PMW) policy for repairable products with age-dependent maintenance costs. Under a PMW, any product failures are rectified by minimal repair, and additional preventive maintenance actions are carried out within the warranty period. When the costs for preventive maintenance and minimal repair are age-dependent, the optimal number of preventive maintenance actions, corresponding maintenance degrees, and the maintenance schedule for designing a PMW policy are derived here such that the expected total wa

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Wee, Kenneth. "Encouraging traditional owner participation in onshore unconventional projects." APPEA Journal 55, no. 2 (2015): 438. http://dx.doi.org/10.1071/aj14073.

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Australia has significant unconventional energy resources that can be tapped to bolster energy security needs and increase contributions to the global energy supply mix—fuelling both domestic and international economic growth. A key factor underpinning the success of developing onshore unconventional resources is the security of land and tenure access, which allows project proponents to sustainably engage in the exploration, appraisal and development of unconventional gas deposits spread across extensive geographical areas. These activities occur in areas that are vested in traditional landown

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Ziyadin, Sayabek, Elena Streltsova, Alex Borodin, Nataliya Kiseleva, Irina Yakovenko, and Elmira Baimukhanbetova. "Assessment of Investment Attractiveness of Projects on the Basis of Environmental Factors." Sustainability 11, no. 9 (May 1, 2019): 2544. http://dx.doi.org/10.3390/su11092544.

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This article is devoted to the creation of intelligent modelling tools for decision support in the evaluation of intellectual projects submitted for financing, as based on qualitatively defined characteristics. The economic and mathematical models that form the basis of the toolkit are constructed using the mathematical apparatus of fuzzy logic, which allows for the description of poorly structured knowledge of specialists, as well as their application in solving questions about the extent of the impact of the proposed projects on the environment. The authors classify investment projects accor

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Dulebenets, Maxim A. "Advantages and disadvantages from enforcing emission restrictions within emission control areas." Maritime Business Review 1, no. 2 (June 30, 2016): 107–32. http://dx.doi.org/10.1108/mabr-05-2016-0011.

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Purpose Emissions produced by oceangoing vessels not only negatively affect the environment but also may deteriorate health of living organisms. Several regulations were released by the International Maritime Organization (IMO) to alleviate negative externalities from maritime transportation. Certain polluted areas were designated as “Emission Control Areas” (ECAs). However, IMO did not enforce any restrictions on the actual quantity of emissions that could be produced within ECAs. This paper aims to perform a comprehensive assessment of advantages and disadvantages from introducing restrictio

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Amer, Baher M. A., and Houssam Chouikhi. "Smartphone Application Using a Visual Programming Language to Compute Drying/Solar Drying Characteristics of Agricultural Products." Sustainability 12, no. 19 (October 2, 2020): 8148. http://dx.doi.org/10.3390/su12198148.

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Drying is an important process for food security. A software application on a smartphone can be used to prevent mistakes while carrying out the calculations for drying investigation and research using several mathematical equations. The objective of this research was to develop a software program on cellphones depending on some of the important mathematical equations which are used to conduct some of the drying/solar drying characteristics to assist researchers and engineers who work in the food engineering field for sustainable development. This innovative software application can be installe

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Subramanian, Avinash, Truls Gundersen, and Thomas Adams. "Modeling and Simulation of Energy Systems: A Review." Processes 6, no. 12 (November 23, 2018): 238. http://dx.doi.org/10.3390/pr6120238.

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Energy is a key driver of the modern economy, therefore modeling and simulation of energy systems has received significant research attention. We review the major developments in this area and propose two ways to categorize the diverse contributions. The first categorization is according to the modeling approach, namely into computational, mathematical, and physical models. With this categorization, we highlight certain novel hybrid approaches that combine aspects of the different groups proposed. The second categorization is according to field namely Process Systems Engineering (PSE) and Ener

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Trejos-Grisales, Luz Adriana, Juan David Bastidas-Rodríguez, and Carlos Andrés Ramos-Paja. "Mathematical Model for Regular and Irregular PV Arrays with Improved Calculation Speed." Sustainability 12, no. 24 (December 21, 2020): 10684. http://dx.doi.org/10.3390/su122410684.

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Photovoltaic (PV) systems are usually developed by configuring the PV arrays with regular connection schemes, such as series-parallel, total cross-tied, bridge-linked, among others. Such a strategy is aimed at increasing the power that is generated by the PV system under partial shading conditions, since the power production changes depending on the connection scheme. Moreover, irregular and non-common connection schemes could provide higher power production for irregular (but realistic) shading conditions that aere caused by threes or other objects. However, there are few mathematical models

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Ma, Huiru, Dewang Chen, and Jiateng Yin. "Riding Comfort Evaluation Based on Longitudinal Acceleration for Urban Rail Transit—Mathematical Models and Experiments in Beijing Subway." Sustainability 12, no. 11 (June 3, 2020): 4541. http://dx.doi.org/10.3390/su12114541.

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Riding comfort is an important index to measure the quality of service for railways, especially for congested urban rail transit systems where the majority of passengers cannot find a seat. Existing studies usually employ the value of longitudinal acceleration as the key indicator to evaluate the riding comfort of vehicles, while there is no validated mathematical models to evaluate the riding comfort of urban rail trains from the perspective of passengers. This paper aims to employ the collected longitudinal acceleration data and passengers’ feedback data in Beijing subway to qualitatively me

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Alnahdi, Amani, Ali Elkamel, Munawar A. Shaik, Saad A. Al-Sobhi, and Fatih S. Erenay. "Optimal Production Planning and Pollution Control in Petroleum Refineries Using Mathematical Programming and Dispersion Models." Sustainability 11, no. 14 (July 10, 2019): 3771. http://dx.doi.org/10.3390/su11143771.

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Oil refineries, producing a large variety of products, are considered as one of the main sources of air contaminants such as sulfur oxides (SOx), hydrocarbons, nitrogen oxides (NOx), and carbon dioxide (CO2), which are primarily caused by fuel combustion. Gases emanated from the combustion of fuel in an oil refinery need to be reduced, as it poses an environmental hazard. Several strategies can be applied in order to mitigate emissions and meet environmental regulations. This study proposes a mathematical programming model to derive the optimal pollution control strategies for an oil refinery,

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Zastempowski, Marcin, Andrzej Bochat, and Lubomír Hujo. "Selected Aspects of Modelling and Design Calculations of Roller Mills." Sustainability 13, no. 5 (March 1, 2021): 2595. http://dx.doi.org/10.3390/su13052595.

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An analysis of construction was conducted in this study, and the guidelines for designing roller mills used commonly in the agri-food, chemical, power and construction industries were presented. Quick designing of the machines required existence of adequate mathematical models. Within the framework of the study’s realization, a mathematical model was developed and we presented the selected results of calculations of the milling rollers loading from the assembly’s mill bowl. The simulation calculations conducted with the mathematical model unambiguously show that the roller’s rotation around a

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Makarieva, Olga, Nataliia Nesterova, Ali Torabi Haghighi, Andrey Ostashov, and Anastasiia Zemlyanskova. "Challenges of Hydrological Engineering Design in Degrading Permafrost Environment of Russia." Energies 15, no. 7 (April 4, 2022): 2649. http://dx.doi.org/10.3390/en15072649.

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The study shows that the current network of hydrometeorological observation in the permafrost zone of Russia is insufficient to provide data for the statistical approaches adopted at the state level for engineering surveys and calculations. The alternative to the financially costly and practically impossible expansion of the monitoring network is the development of hydrological research stations and the implementation of new methods for calculating streamflow characteristics based on mathematical modeling. The data of the Kolyma Water-Balance Station, the first research basin in the world in a

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Linfati, Rodrigo, Fernando Yáñez-Concha, and John Willmer Escobar. "Mathematical Models for the Vehicle Routing Problem by Considering Balancing Load and Customer Compactness." Sustainability 14, no. 19 (October 10, 2022): 12937. http://dx.doi.org/10.3390/su141912937.

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The vehicle routing problem seeking to minimize the traveled distance and the deviation of the total workload is known as the vehicle routing problem with workload balance (WBVRP). In the WBVRP, several elements are considered: (i) the total distance or driving time, (ii) the number of customers to be visited, and (iii) the total weight or amount of delivered goods. We have considered the WBVRP by adding a concept called customer compactness and the visual attractiveness of the routes. The WBVRP allows a similar workload for drivers to improve their well-being and social development. Unbalance

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Hussein, Ahmed Kadhim, Farhan Lafta Rashid, Azher M. Abed, Mohammad Al-Khaleel, Hussein Togun, Bagh Ali, Nevzat Akkurt, et al. "Inverted Solar Stills: A Comprehensive Review of Designs, Mathematical Models, Performance, and Modern Combinations." Sustainability 14, no. 21 (October 24, 2022): 13766. http://dx.doi.org/10.3390/su142113766.

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Fresh water is scarce, making it a worldwide issue. In order to address global freshwater demand, a filtration technique is needed. Solar distillation (SD) that purifies brackish and subterranean water has been proven to be a promising green technology. It produces distilled water which can be used as potable water for drinking and other purposes. The designs, operations, and configurations of several inverted solar stills are thoroughly examined in this article. All techniques for solar water distillation to separate saltwater from freshwater have the same fundamental idea. It has been demons

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Anders, Andrzej, Dariusz Choszcz, Piotr Markowski, Adam Józef Lipiński, Zdzisław Kaliniewicz, and Elwira Ślesicka. "Numerical Modeling of the Shape of Agricultural Products on the Example of Cucumber Fruits." Sustainability 11, no. 10 (May 16, 2019): 2798. http://dx.doi.org/10.3390/su11102798.

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The aim of the study was to build numerical models of cucumbers cv. Śremski with the use of a 3D scanner and to analyze selected geometric parameters of cucumber fruits based on the developed models. The basic dimensions of cucumber fruits–length, width and thickness—were measured with an electronic caliper with an accuracy of d = 0.01 mm, and the surface area and volume of fruits were determined by 3D scanning. Cucumber fruits were scanned with an accuracy of d = 0.13 mm. Six models approximating the shape of cucumber fruits were developed with the use of six geometric figures and their combi

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Saravanan, G., and I. Gnanambal. "Mathematical Model and Control Design of Micro Turbine Generation System." Journal of Computational and Theoretical Nanoscience 13, no. 10 (October 1, 2016): 7610–16. http://dx.doi.org/10.1166/jctn.2016.5760.

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In this modern era power generation seems to be a very demanding factor. New models and methods have been proposed to derive from various natural and man made resources. In such instances this paper gives a detailed report on the power generation from micro turbines. To enlist the microturbines as a prime source of energy utility restructuring, technology evolution, public environmental policy and expanding power demand are some of the most notable factors. Gas turbines plays a very important role in electric power generation. Especially they are used in the Combined cycle process power Plants

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Tan, Verity, Pablo R. Dias, Nathan Chang, and Rong Deng. "Estimating the Lifetime of Solar Photovoltaic Modules in Australia." Sustainability 14, no. 9 (April 28, 2022): 5336. http://dx.doi.org/10.3390/su14095336.

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Determining the lifetime of solar photovoltaic modules is integral to planning future installations and ensuring effective end-of-life management. The lifetime of photovoltaic modules is most commonly considered to be 25 years based on performance guarantees of 80% power output after 25 years of operation; however, influences including climatic conditions, social behaviour, fiscal policy, and technological improvements have the potential to prompt early replacement. Therefore, this work aims to estimate the operating lifetime of photovoltaic panels more accurately in Australia by considering a

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Cârdei, Petru, Cătălina Tudora, Valentin Vlăduț, Mirabela Augustina Pruteanu, Iuliana Găgeanu, Dan Cujbescu, Despina-Maria Bordean, Nicoleta Ungureanu, George Ipate, and Oana Diana Cristea. "Mathematical Model to Simulate the Transfer of Heavy Metals from Soil to Plant." Sustainability 13, no. 11 (May 30, 2021): 6157. http://dx.doi.org/10.3390/su13116157.

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Heavy metals are naturally occurring elements, but their various applications have led to their wide circulation in the environment, raising concerns over their latent effects on the environment and human health. Their toxicity depends on numerous factors, including chemical species, concentration of heavy metal ions, environmental factors, etc. Experimental studies on the single or cumulative effects of heavy metals on plants are complex, time consuming and difficult to conduct. An alternative is mathematical modeling, which can include different factors into an integrated system and can pred

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Wee, Kenneth. "Lowering the cost of funds for exploration: the case for tax-based equity financing incentives." APPEA Journal 60, no. 2 (2020): 569. http://dx.doi.org/10.1071/aj19184.

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Exploring for, and discovering, new oil and gas resources is essential to an oil and gas company’s ability to replenish and enhance its reserves base. With rising future demand for clean, sustainable and affordable energy sources and the important role and contribution of the Australian petroleum industry in the evolving global energy mix, continual investment in exploration activity will be the key to unlocking the prospectivity of undeveloped acreage, particularly in frontier areas. However, exploration is inherently risky and costly. Companies constantly compete for scarce capital to provid

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Tamilselvi, S., S. Gunasundari, N. Karuppiah, Abdul Razak RK, S. Madhusudan, Vikas Madhav Nagarajan, T. Sathish, Mohammed Zubair M. Shamim, C. Ahamed Saleel, and Asif Afzal. "A Review on Battery Modelling Techniques." Sustainability 13, no. 18 (September 8, 2021): 10042. http://dx.doi.org/10.3390/su131810042.

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The growing demand for electrical energy and the impact of global warming leads to a paradigm shift in the power sector. This has led to the increased usage of renewable energy sources. Due to the intermittent nature of the renewable sources of energy, devices capable of storing electrical energy are required to increase its reliability. The most common means of storing electrical energy is battery systems. Battery usage is increasing in the modern days, since all mobile systems such as electric vehicles, smart phones, laptops, etc., rely on the energy stored within the device to operate. The

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Vieira, Serrao-Neumann, and Howes. "Local Action with a Global Vision: The Transformative Potential of Food Social Enterprises in Australia." Sustainability 11, no. 23 (November 28, 2019): 6756. http://dx.doi.org/10.3390/su11236756.

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There is an urgent need to make food systems more sustainable and resilient. Such a transformation goes beyond technological innovation and requires economic and social change. Research interest in the transformative potential of community level action has increased. Food social enterprises often operate at the community level and consist of not-for-profit organisations that aim to make a positive contribution to social justice and environmental sustainability. The question addressed in this paper is whether these social enterprises are limited to isolated improvements or have the capacity to

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Pankiv, Oleh. "The concepts and features of the models of venture investment of energy-oriented startups." Socio-Economic Problems of the Modern Period of Ukraine, no. 4(138) (2019): 74–78. http://dx.doi.org/10.36818/2071-4653-2019-4-12.

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The theoretical and methodological principles of promising managerial decisions concerning the efficiency of attracting financial resources, as well as creation of fundamentally new sources of funding for the development of energy-oriented start-ups are considered. The role and place of the sectors of innovative energy saving and alternative sources of power supply in a complex system of energy independence of the country are determined. The way and the main directions of research and development of the ways to solve the aforementioned problem are outlined. As part of the search for optimizati

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Kremmydas, D., A. Petsakos, and S. Rozakis. "Parametric Optimization of Linear and Non-Linear Models via Parallel Computing to Enhance Web-Spatial DSS Interactivity." International Journal of Decision Support System Technology 4, no. 1 (January 2012): 14–29. http://dx.doi.org/10.4018/jdsst.2012010102.

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A web based Spatial Decision Support System (web SDSS) has been implemented in Thessaly, the most significant arable cropping region in Greece, to evaluate energy crop supply. The web SDSS uses an optimization module to support the decision process launching mathematical programming (MP) profit maximizing farm models. Energy to biomass raw material cost is provided in supply curve form incorporating physical land suitability for crops, farm structure, and Common Agricultural Policy (CAP) scenarios. To generate biomass supply curves, the optimization problem is parametrically solved for a numbe

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Liu, Yanrong, Zhongqiu Meng, Lei Zhu, Di Hu, and Handong He. "Optimizing the Sample Selection of Machine Learning Models for Landslide Susceptibility Prediction Using Information Value Models in the Dabie Mountain Area of Anhui, China." Sustainability 15, no. 3 (January 19, 2023): 1971. http://dx.doi.org/10.3390/su15031971.

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The evaluation of landslide susceptibility is of great significance in the prevention and management of geological hazards. The accuracy of the landslide susceptibility prediction model based on machine learning is significantly higher than that of traditional expert knowledge and the conventional mathematical statistics model. The correct and reasonable selection of non-landslide samples in the machine learning model greatly improves the prediction accuracy and reliability of the regional landslide susceptibility model. Focusing on the problem of selecting non-landslide samples in the machine

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Pang, Yingbo, Iftikhar Azim, Momina Rauf, Muhammad Farjad Iqbal, Xinguang Ge, Muhammad Ashraf, Muhammad Atiq Ur Rahman Tariq, and Anne W. M. Ng. "Prediction of Bidirectional Shear Strength of Rectangular RC Columns Subjected to Multidirectional Earthquake Actions for Collapse Prevention." Sustainability 14, no. 11 (June 2, 2022): 6801. http://dx.doi.org/10.3390/su14116801.

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The understanding of the effects of multidirectional loadings imposed on major load bearing elements such as reinforced concrete (RC) columns by seismic actions for collapse prevention is of utmost importance, and a few simplified models are available in the literature. In this study, the distinguishing features of two machine-learning (ML) methods, namely, multi expression programming (MEP) and adaptive neuro-fuzzy inference system (ANFIS) are exploited for the first time to develop eight novel prediction models (M1-to M4-MEP and M1-to M4-ANFIS) with different combinations of input parameters

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García-Cuadrado, Juan, Andrea Conserva, Juan Aranda, David Zambrana-Vasquez, Tatiana García-Armingol, and Gema Millán. "Response Surface Method to Calculate Energy Savings Associated with Thermal Comfort Improvement in Buildings." Sustainability 14, no. 5 (March 2, 2022): 2933. http://dx.doi.org/10.3390/su14052933.

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In developed countries, a large part of the building stock in 2050 will consist of currently existing buildings. Consequently, in order to achieve the objectives in terms of energy efficiency in the building sector we must consider not only new infrastructures but also the old ones. A reduction in energy consumption for climate control of between 50 and 90% can be achieved by rehabilitation and the implementation of different energy efficiency measures. Currently, these measures to reduce energy consumption and associated CO2 emissions can be modelled using computer tools. However, high precis

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Chen, Xiaohong, Jincheng Zhou, Jinqiu Wang, Dan Wang, Jiu Liu, Dingpu Shi, Duo Yang, and Qingna Pan. "Visualizing Status, Hotspots, and Future Trends in Mathematical Literacy Research via Knowledge Graph." Sustainability 14, no. 21 (October 25, 2022): 13842. http://dx.doi.org/10.3390/su142113842.

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The goal of education for sustainable development is to prepare future citizens to make informed decisions and take responsible action to solve problems. The purpose of mathematical literacy is to ensure that all learners develop an understanding of mathematics, and how to relate mathematics to the world and use mathematical knowledge to make valuable decisions in their lives, work, and society. It can be seen that the purpose of mathematical literacy coincides with the goal of education for sustainable development. In addition, math literacy is closely related to self-regulated learning (SRL)

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