DSpace Cris Angular :: Browsing by Type "Review"

Browsing by Type "Review"

Now showing 1 - 20 of 475

2002-2012: 10 years of research progress in horizontal-axis marine current turbines
(MDPI AG, 2013)
Ng K.-W.
;
Lam W.-H.
;
Ng K.-C.
;
55612352800
;
23028104400
;
55310814500
Research in marine current energy, including tidal and ocean currents, has undergone significant growth in the past decade. The horizontal-axis marine current turbine is one of the machines used to harness marine current energy, which appears to be the most technologically and economically viable one at this stage. A number of large-scale marine current turbines rated at more than 1 MW have been deployed around the World. Parallel to the development of industry, academic research on horizontal-axis marine current turbines has also shown positive growth. This paper reviews previous research on horizontal-axis marine current turbines and provides a concise overview for future researchers who might be interested in horizontal-axis marine current turbines. The review covers several main aspects, such as: energy assessment, turbine design, wakes, generators, novel modifications and environmental impact. Future trends for research on horizontal-axis marine current turbines are also discussed. � 2013 by the authors; licensee MDPI, Basel, Switzerland.
11
Absorption Coefficient of Bulk III-V Semiconductor Materials: A Review on Methods, Properties and Future Prospects
(Springer, 2022)
Lee H.J.
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Gamel M.M.A.
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Ker P.J.
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Jamaludin M.Z.
;
Wong Y.H.
;
David J.P.R.
;
57190622221
;
57215306835
;
37461740800
;
57216839721
;
36605495300
;
25647614700
Over the last few decades, research works have focused on elucidating the optical properties of semiconductor materials. Despite remarkable progress in the measurement and calculation of the absorption coefficient for semiconductor materials, there is a lack of comprehensive review on the comparative study of absorption coefficient properties for different types of bulk semiconductor materials and their methods for calculating the absorption coefficient. Hence, this paper summarizes the fundamentals of the various methods used to determine the absorption coefficient properties of bulk growth semiconductor crystals, and discusses their advantages and disadvantages. Furthermore, this review provides comprehensive results from recent studies and findings on the absorption properties of near- to mid-infrared (wavelengths from 800 to 7300�nm) group III-V semiconductor materials. In addition, the absorption coefficient of the conventional group IV semiconductors (silicon and Ge) were included for performance comparison. Critical analysis was done for the reviewed materials concerning their material properties, such as band gap structure, crystal quality, and the structural design of the device. The related studies on the methods to determine the absorption coefficients of semiconductors and to improve the likelihood of absorption performance were well highlighted. This review also provides an in-depth discussion on the knowledge of absorption coefficient based on a wide range of semiconductor materials and their potential for sensors, photodetectors, solar and photovoltaic application in the near to mid infrared region. Lastly, the future prospects for research on absorption coefficients are discussed and the advancement in the determination of absorption coefficients for new ternary and quaternary materials is proposed using artificial intelligence such as neural networks and genetic algorithm. � 2022, The Minerals, Metals & Materials Society.
6
Active Electric Distribution Network: Applications, Challenges, and Opportunities
(Institute of Electrical and Electronics Engineers Inc., 2022)
Mohd Azmi K.H.
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Mohamed Radzi N.A.
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Azhar N.A.
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Samidi F.S.
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Thaqifah Zulkifli I.
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Zainal A.M.
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57982272200
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57218936786
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57219033091
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57215054855
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58084608900
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57641618700
Traditional electrical power grids are transitioning from centralised operation with unidirectional energy and information flows (from the generation domain to customers) to smart grids with decentralised mode of operation and bidirectional flows. This reversal of traditional power flow direction is due to the connections of active loads such as distributed energy resources (DERs) and renewable energy sources close to the distribution network. Through advanced and sophisticated information and communication technologies (ICTs), efficient DER management and various applications for reliable and secure power delivery are enabled. However, before the adoption of any ICT solution in the grid, several challenges remain, which include interoperability, security and privacy concerns, and the ever-increasing demands to support various services and applications. Although the information within the grid is becoming more visible because of bidirectional communication flow, this only applies to transmission networks and not active distribution networks, which house numerous smart grid applications. There is also little research that supports the automatic operation of active distribution networks. Hence, this article explores and reviews active distribution network communication technologies, as well as the applications and communication standards. This review paper also highlights issues and challenges with active distribution networks and opportunities and research trends in the distribution domain from an ICT perspective. � 2013 IEEE.
27
Addressing the urban heat islands effect: A cross-country assessment of the role of green infrastructure
(MDPI, 2021)
Leal Filho W.
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Wolf F.
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Castro-D�az R.
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Li C.
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Ojeh V.N.
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Guti�rrez N.
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Nagy G.J.
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Savi? S.
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Natenzon C.E.
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Al-Amin A.Q.
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Maruna M.
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B�necke J.
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57189717187
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57188863867
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55859485600
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55933406700
;
57192096824
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57221541070
;
8632952300
;
12240936900
;
55292524800
;
23481119100
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55317206400
;
6508239255
The Urban Heat Islands (UHI) effect is a microclimatic phenomenon that especially affects urban areas. It is associated with significant temperature increases in the local microclimate, and may amplify heat waves. Due to their intensity, UHI causes not only thermal discomfort, but also reductions in the levels of life quality. This paper reviews the important role of green infrastructure as a means through which the intensity of UHI may be reduced, along with their negative impact on human comfort and wellbeing. Apart from a comprehensive review of the available literature, the paper reports on an analysis of case studies in a set of 14 cities in 13 countries representing various geographical regions and climate zones. The results obtained suggest that whereas UHI is a common phenomenon, green infrastructure in urban areas may under some conditions ameliorate their impacts. In addition, the study revealed that the scope and impacts of UHI are not uniform: depending on peculiarities of urban morphologies, they pose different challenges linked to the microclimate peculiar to each city. The implications of this paper are threefold. Firstly, it reiterates the complex interrelations of UHIs, heat waves and climate change. Secondly, it outlines the fact that keeping and increasing urban green resources leads to additional various benefits that may directly or indirectly reduce the impacts of UHI. Finally, the paper reiterates the need for city planners to pay more attention to possible UHI effects when initiating new building projects or when adjusting current ones. � 2021 by the authors. Licensee MDPI, Basel, Switzerland.
3
The Adoption and Use of Moodle in Online Learning: A Systematic Review
(Natural Sciences Publishing, 2023)
Mustafa A.S.
;
Ali N.
;
57218103026
;
54985243500
The rapid evolution of ICT has enabled several institutions to adopt Moodle as their preferred e-learning platform. Moodle is increasingly being used for interactive, personalised, and collaborative learning and improving online assessments. Despite Moodle's increasing popularity, there are limited reviews on the empirical evidence of its efficacy among students. The study aimed to provide an overview of the scientific literature on the studies that investigated the behavioural intention and actual usage of Moodle. This review shows that Moodle is mainly used in universities and effectively improves student performance, attitude, and satisfaction. Most studies that applied a theoretical ground applied the Technology Acceptance Model (TAM). Meanwhile, performance expectancy, effort expectancy, facilitating condition, perceived usefulness of professors, perceived ease of use, and subjective norms are essential drivers for online learning systems' acceptance or actual usage. These findings serve as evidence and reference for educational institutions in developing online learning policies and strategies. Further studies need to incorporate behavioural and motivational theories when designing Moodle courses. � 2023 NSP.
11
Advancement in thermophotovoltaic technology and nanoparticle incorporation for power generation
(Elsevier Ltd, 2023)
Khairul Azri A.A.
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Mohd Jasni M.S.
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Wan Muhamad Hatta S.F.
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Islam M.A.
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Abdul Wahab Y.
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Mekhilef S.
;
Ker P.J.
;
58294307100
;
57368165200
;
35184383500
;
58806853000
;
57203353903
;
57928298500
;
37461740800
Thermophotovoltaic (TPV) technology harvests electricity from a source of thermal radiation and at current, TPV cells can achieve conversion efficiency of more than 40%. The construct of the TPV system is relatively complex than the conventional solar cell in which the TPV has two critical components, specifically the absorber-emitter and filters, to help in enhancing the transfer of photons to the TPV cell for conversion. Despite its importance, works on the optimization of these components for an ideal TPV system are still lacking. This review examines previous studies on the TPV structure, and details extensive techniques to improve current designs of the TPV systems - notably through the use of textured absorbers, selective emitters and different types of filters. Inevitably, the selection of materials and designs of the absorber-emitter are essential in enhancing the TPV performance. Herein, challenges and enhancements in the form of optical performance, thermal stability, and electrical performance are comprehensively discussed. This review identifies the crucial role of nanoparticles incorporated into the absorber-emitter layer of a TPV system. This review also critically highlights technology advancements incorporated into the TPV technology which will effectively boost performance and improve the fabrication and operational costs of this sustainable technology. � 2023 International Solar Energy Society
8
The Advancement of Solid-State Transformer Technology and Its Operation and Control with Power Grids: A Review
(MDPI, 2022)
Mollik M.S.
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Hannan M.A.
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Reza M.S.
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Abd Rahman M.S.
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Lipu M.S.H.
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Ker P.J.
;
Mansor M.
;
Muttaqi K.M.
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57188747115
;
7103014445
;
56404260500
;
36609854400
;
36518949700
;
37461740800
;
6701749037
;
55582332500
Solid-state transformer (SST) technology is one of the developing technologies that will be widely used in the future to integrate low-voltage and high-voltage networks with control circuitries and power electronics converters, facilitating renewables integration in smart grid applications. SST technology has crucial key advantageous features, including compact size and weight, low cost, and ease of connection in offshore applications. However, SST technology exhibits a few concerns, such as implementation, protection, economic, and communication compatibility, that need to be addressed. This paper aims to review SST technology with its advanced control schemes and provide future directions for research and development, applications, and prospects. In line with this, highly cited SST technology papers are examined to derive and summarize concerning issues related to its operation and control with further research development of power grids. Moreover, this review discusses the assessment and state-of-the-art technology of SSTs in different applications, focusing on configurations, control circuitry, and their drawbacks and benefits. Numerous issues and challenges of SST technology are explored to identify the existing knowledge gaps and potential future recommendations. All these critical analyses, information, and evaluations would benefit power engineers and researchers in developing and implementing advanced intelligent SST technologies for sustainable energy management in future power systems. � 2022 by the authors.
3
Advancements in intelligent cloud computing for power optimization and battery management in hybrid renewable energy systems: A comprehensive review
(Elsevier Ltd, 2023)
AL-Jumaili A.H.A.
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Muniyandi R.C.
;
Hasan M.K.
;
Singh M.J.
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Paw J.K.S.
;
Amir M.
;
57212194331
;
14030355800
;
55057479600
;
58765817900
;
58168727000
;
57210089902
A cloud computing-based power optimization system (CC-POS) is an important enabler for hybrid renewable-based power systems with higher output, optimal solutions to extend battery storage life, and remotely flexible power distribution control. Recent advancements in cloud computing have begun to deliver critical insights, resulting in adaptive-based control of storage systems with improved performance. This study aims to review the recently published literature on the topic of power management systems and battery charging control. The role of intelligent based cloud computing is to improve the battery life and manage the battery state of charge (SoC). To achieve this purpose, publishers� databases and search engines were used to obtain the studies reviewed in this paper. We identify and review the purpose, achievements, tools/algorithm, and recommendations for each survey work, and thus outline a number of key findings and future directions. Furthermore, the review includes a listing of novels and recently used algorithms. Additionally, a critical review of 174 research articles were analyzed as per Web of Science (WoS) and Scopus database. The key findings of this study are discussed in two key conceptual frameworks that contain a power optimization system and an optimal battery management system. The power transmission, distribution, and charge and discharge processes are controlled and stored on cloud computing using the power mix between hybrid renewable energy and other power sources. � 2023 The Author(s)
3
Advances in CO2 utilization technology: A patent landscape review
(Elsevier Ltd, 2018)
Norhasyima R.S.
;
Mahlia T.M.I.
;
42861973100
;
56997615100
There is rising concern on the increasing trend of global warming due to anthropogenic CO2 emission which steers progress of carbon capture and storage (CCS) projects worldwide. However, due to high cost and uncertainties in long term geological storage, there is a growing inclination to include utilization, which re-use the CO2, hence carbon capture utilization and storage (CCUS). Additionally, it is expected to generate income to offset the initial costs. This study methodically review patents on CO2 utilization technologies for CCUS application published between year 1980-2017. It was conducted using the Derwent Innovation patent database and more than 3000 number of patents was identified. The patents identified are in the field of enhanced oil recovery (EOR) and enhanced coal-bed methane (ECBM), chemical and fuel, mineral carbonation, biological algae cultivation and enhanced geothermal system (EGS). Over 60% of these patents were published since the last 10 years, and a sharp increase in patents were seen in the last 5 years (?38%). The top major patent types are patents granted in the United States (US), China (CN) and Canada (CA) which makes of 3/5 of the overall patent type found. Recent patents published include enhancements to the state-of-the-art technologies and hybrid concepts such as in photo-bioreactor in algae cultivation, chemical reaction and EGS. From this study, it was found that further research for the best CO2 utilization method which fulfil the need of an economic, safe, non-location dependent and environmentally friendly whilst efficiently mitigate the worldwide global warming issue is much needed. � 2018 Elsevier Ltd. All rights reserved.
5
Advances in fibre Bragg grating technology for magnetic field sensing: A review
(Elsevier B.V., 2023)
Rostami A.
;
Wahaab F.A.
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Soleimani H.
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Sikiru S.
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Khosravi V.
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Yusuff A.O.
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Hamza M.F.
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57192384461
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57210743667
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55556142100
;
57211063469
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57202034458
;
57219201379
;
58285000600
Magnetic field sensing is crucial for various scientific and technological applications, but current methods have limitations in cost, size, and weight. Fiber Bragg Grating (FBG) magnetic field sensors have emerged as a promising alternative, offering compact size, and simplified fabrication. This review introduces FBG synthesis methods and extensively discusses the three primary magneto-optic mechanisms for magnetic field sensing: Faraday effect, magnetic fluid, and magnetostrictive materials. We evaluate their advantages and disadvantages, with Faraday effect relying on the Verdet constant and facing complexity in measurement elements. FBG magnetic sensing with magnetic fluid shows promising sensitivity and versatility but is challenged by optical loss-induced errors. Magnetostrictive materials provide robustness but exhibit limited linearity. Future research should focus on addressing these challenges to enhance the reliability of FBGs for magnetic sensing. The findings highlight the exceptional potential of FBGs in advancing magnetic field sensing applications. � 2023 Elsevier Ltd
11
Advances in the integration of solar thermal energy with conventional and non-conventional power plants
(2013)
Jamel M.S.
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Abd Rahman A.
;
Shamsuddin A.H.
;
55541995800
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36994910600
;
35779071900
Pollution and increasing fuel prices are the main focus for governments today. The main cause of pollution is existing electricity power plants that use huge quantities of fossil fuel. A new strategy should be applied in the coming decades based on the integration of existing power plants with renewable energy sources, such as solar and wind energy. Hybridization of existing power plants with solar energy is one proven option to overcome the problems of pollution and increasing fuel prices. In this paper, a review of the previous studies and papers for integrating solar thermal energy with conventional and non-conventional power plants was carried out. The focus on hybrid solar conventional power plants includes: the review of studies of hybrid solar-steam cycle power plants, integrated solar combined-cycle systems (ISCCS) and hybrid solar-gas turbine power plants, while for hybrid solar non-conventional power plants the focus of study is hybrid solar-geothermal power plants. The most successful option is ISCCS due to their advantages and the plans for implementation at various power plants in the world like in Tunisia, Egypt, Spain, and Iran. � 2012 Published by Elsevier B.V. All rights reserved.
5
Aesthetically Appealing Building Integrated Photovoltaic Systems for Net-Zero Energy Buildings. Current Status, Challenges, and Future Developments�A Review
(MDPI, 2023)
Basher M.K.
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Nur-E-Alam M.
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Rahman M.M.
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Alameh K.
;
Hinckley S.
;
57200631060
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57197752581
;
56517337800
;
7004211082
;
6603913914
With the sharp increase in global energy demand, industrial and residential buildings are responsible for around 40% of the energy consumed with most of this energy portion being generated by non-renewable sources, which significantly contribute to global warming and environmental hazards. The net-zero energy building (NZEB) concept attempts to solve the global warming issue, whereby a building will produce, on-site, its required energy demand throughout the year from renewable energy sources. This can be achieved by integrating photovoltaic (PV) building materials, called building-integrated photovoltaic (BIPV) modules, throughout the building skin, which simultaneously act as construction materials and energy generators. Currently, architects and builders are inclined to design a building using BIPV modules due to the limited colors available, namely, black or blue, which result in a monotonous building appearance. Therefore, there is an increasing demand/need to develop modern, aesthetically pleasing BIPV green energy products for the use of architects and the construction industry. This review article presents the current stage and future goal of advanced building integrated photovoltaic systems, focusing on the aesthetically appealing BIPV systems, and their applications towards overcoming global challenges and stepping forward to achieve a sustainable green energy building environment. Additionally, we present the summary and outlook for the future development of aesthetically appealing building integrated photovoltaic systems. � 2023 by the authors.
4
AN AGENT-BASED DOCUMENT CLASSIFICATION MODEL TO IMPROVE THE EFFICIENCY OF THE AUTOMATED SYSTEMATIC REVIEW PROCESS
(Little Lion Scientific, 2022)
Khashfeh M.
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Mahmoud M.A.
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Mahdi M.N.
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57202812898
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55247787300
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56727803900
This paper proposes an Agent-based Document Classification (AbDC) model that computerizes the systematic literature review (SLR) process by imitating what a researcher is supposed to perform during the literature review process manually. The AbDC model comprises three main components that perform the SLR. Firstly, the document classification algorithm analyses a full text of research articles and evaluates relevancy. Secondly, the multi-agent architecture accelerates the mining process and handles the performance issues. Finally, the web-based systematic review tool tests and validates the functionality of the proposed AbDC model. The first testing was conducted to assess the performance of the proposed AbDC. Result shows that the required processing time was reduced by 33.5% using four agents to achieve the mining process. Meanwhile, the second testing was performed to validate the mining process results. The text extraction method was run on 200 documents from various studies to conduct the review process. The parsing process yielded valid results with 98.5% accuracy. The testing results showed that the proposed AbDC model is significant in providing researchers and postgraduate students with new means to perform SLR. � 2022 Little Lion Scientific
12
Air cooling techniques and corresponding impacts on combined cycle power plant (CCPP) performance: A review [Techniques de refroidissement de l'air et impacts correspondants sur les performances des centrales �lectriques � cycle combin�]
(Elsevier Ltd, 2020)
Deng C.
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Al-Sammarraie A.T.
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Ibrahim T.K.
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Kosari E.
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Basrawi F.
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Ismail F.B.
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Abdalla A.N.
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56392318500
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57195757756
;
36730964600
;
57219225840
;
55007589100
;
58027086700
;
56050971600
This work aims to provide a state-of-the-art review of the performance of combined cycle power plant (CCPP) based on several proposed inlet air cooling systems. Investigators strive to meet the significant need to promote and develop inlet air cooling technologies to recover heat from the wasted energy in the exhaust gasses of the CCPP and diminish the environmental impacts. Various types of cooling systems mainly offer a boost for electric power generation during the peak load hours. The output power of the CCPP directly depends on the mass flow rate of air that flows through the air compressor. Therefore, during extremely hot weather conditions, subsequently, the air density drops, and this leads to a drastic decrease in the power output. This paper reviews available studies investigated the impacts of inlet air cooling systems on the performance of the CCPP. The fogging cooling system contributed by up to 17% in improving the total performance of the CCPP; however, with the use of the evaporative cooling, the performance was enhanced by only 4%. The energy consumption of mechanical chiller compared to that of evaporative cooling is high due to the effectiveness of the evaporative cooler which depends on the humidity of inlet airflow. Further, the mechanical cooling system can provide the CCPP with a cooling effect for around 7-hour on-peak periods. This method increases the gain of the CCPP performance by 13.6%. Ultimately, the CCPP equipped with an absorption chiller demonstrates the best solution to increase the performance by up to 23%. � 2020
5
Alternatives for Fresh Water in Cement-Based Materials: A Review
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)
Yousuf S.
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Shafigh P.
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Muda Z.C.
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Katman H.Y.B.
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Latif A.
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57209853136
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36675939300
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55812444000
;
55812804800
;
55848702700
Huge amounts of fresh water are used in the concrete industry every day. The quantity and quality of water play important roles in determining the quality, strength, setting time, and durability of cement-based materials (CBMs), such as paste, mortar, and concrete. Freshwater systems are under pressure due to climate changes, industrialisation, population growth, urbanisation, and the lack of proper water resource management. The lack of potable water has resulted in the search for possible alternatives, such as seawater, treated industrial wastewater, treated sewage wastewater, carwash service station wastewater, wastewater from ready-mix concrete plants, and wastewater from the stone-cutting industry. All of these water resources can be used in concrete to achieve adequate industry standards for the physical and chemical characteristics of concrete. This study is a comprehensive review of the existing information regarding the effects of alternate water resources on the fresh, physical, strength, and durability properties of CBMs. The review shows that the research on the utilisation of wastewater in CBMs is limited. The development of different procedures and methods is urgently needed to utilise various wastewaters in concrete production. The usage of various wastewaters in concrete construction overcomes their adverse impacts on the environment and human health. � 2023 by the authors.
7
The amber-colored liquid: A review on the color standards, methods of detection, issues and recommendations
(MDPI, 2021)
Hasnul Hadi M.H.
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Ker P.J.
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Thiviyanathan V.A.
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Tang S.G.H.
;
Leong Y.S.
;
Lee H.J.
;
Hannan M.A.
;
Jamaludin M.Z.
;
Mahdi M.A.
;
57295067100
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37461740800
;
57205077992
;
57853430300
;
57202929965
;
57190622221
;
7103014445
;
57216839721
;
7005348074
For most natural or naturally-derived liquid products, their color reflects on their quality and occasionally affects customer preferences. To date, there are a few subjective and objective methods for color measurement which are currently utilized by various industries. Researchers are also improving these methods and inventing new methods, as color is proven to have the ability to provide various information on the condition and quality of the liquid. However, a review on the methods, especially for amber-colored liquid, has not been conducted yet. This paper presents a comprehensive review on the subjective and objective methods for color measurement of amber-colored liquids. The pros and cons of the measurement methods, the effects of the color on customer preferences, and the international industry standards on color measurements are reviewed and dis-cussed. In addition, this study elaborates on the issues and challenges related to the color measurement techniques as well as recommendations for future research. This review demonstrates that the existing color measurement technique can determine the color according to the standards and color scales. However, the efforts toward minimizing the complexity of the hardware while maximizing the signal processing through advanced computation are still lacking. Therefore, through this critical review, this review can hopefully intensify the efforts toward finding an optimized method or technique for color measurement of liquids and thus expedite the development of a portable device that can measure color accurately. � 2021 by the authors. Licensee MDPI, Basel, Switzerland.
32
Application and assessment of internet of things toward the sustainability of energy systems: Challenges and issues
(Elsevier Ltd, 2020)
Khatua P.K.
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Ramachandaramurthy V.K.
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Kasinathan P.
;
Yong J.Y.
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Pasupuleti J.
;
Rajagopalan A.
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57211987923
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6602912020
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57194393495
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56119339200
;
11340187300
;
57194865787
The availability of renewable energy sources along with the advancement of sensing and communication technologies has resulted in the sustainable operation of modern energy systems. An intelligent grid system is the integration of sensors and actuators, which enables the system to connect and exchange energy-related data from renewable sources to a computer system and end-users in a communication network. This data can be monitored in real-time with the help of the Internet of Things (IoT). However, several challenges exist in IoT, such as security, bandwidth management, interfacing interoperability, connectivity, packet loss, and data processing. In this paper, the key challenges and outstanding issues with the IoT when incorporated with energy systems are reviewed. The objective of this paper is to assess the suitability of different data transfer and communication protocols of IoT for deployment in the modern grid system. Moreover, several wireless IoT communication technologies are compared for their suitability in the multilayer network architecture and applications of energy systems. � 2019 Elsevier Ltd
3
Application of Artificial Intelligence Models for modeling Water Quality in Groundwater: Comprehensive Review, Evaluation and Future Trends
(Springer Science and Business Media Deutschland GmbH, 2021)
Hanoon M.S.
;
Ahmed A.N.
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Fai C.M.
;
Birima A.H.
;
Razzaq A.
;
Sherif M.
;
Sefelnasr A.
;
El-Shafie A.
;
57266877500
;
57214837520
;
57214146115
;
23466519000
;
57219410567
;
7005414714
;
6505592467
;
16068189400
This study reported the state of the art of different artificial intelligence (AI) methods for groundwater quality (GWQ) modeling and introduce a brief description of common AI approaches. In addtion a bibliographic review of practices over the past two decades, was presented and attained result were compared. More than 80 journal articles from 2001 to 2021 were review in terms of characteristics and capabilities of developing methods, considering data of input-output, etc. From the reviewed studies, it could be concluded that in spite of various weaknesses, if the artificial intelligence approaches were appropriately built, they can effectively be utilized for predicting the GWQ in various aquifers. Because many steps of applying AI methods are based on trial-and-error or experience procedures, it�s helpful to review them regarding the special application for GWQ modeling. Several partial and general findings were attained from the reviewed studies that could deliver relevant guidelines for scholars who intend to carry out related work. Many new ideas in the associated area of research are also introduced in this work to develop innovative approaches and to improve the quality of prediction water quality in groundwater for example, it has been found that the combined AI models with metaheuristic optimization are more reliable in capturing the nonlinearity of water quality parameters. However, in this review few papers were found that used these hybrid models in GWQ modeling. Therefore, for future works, it is recommended to use hybrid models to more furthere investigation and enhance the reliability and accuracy of predicting in GWQ. � 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
6
Application of graphene-based materials in developing sustainable infrastructure: An overview
(Elsevier Ltd, 2022)
Asim N.
;
Badiei M.
;
Samsudin N.A.
;
Mohammad M.
;
Razali H.
;
Soltani S.
;
Amin N.
;
55902096700
;
36709214200
;
57190525429
;
55453520700
;
54783348000
;
56734238700
;
7102424614
Graphene and graphene-based materials can play a major role in the building and construction industries with their excellent performance. Graphene and its derivatives, as a nano-additive, influence the composition and microstructure of building materials and enhance their physical and mechanical characteristics. The incorporation of graphene-based materials in asphalt preparation has shown some fascinating results with excellent mechanical, thermal, and physical properties. Despite promising results of utilizing graphene-based materials in the construction industry, their research and application trends are unremarkable. In this regard, this review summarizes graphene-based materials in accordance with their applications as construction materials. The focus is on the performance improvement of graphene-based-modified building materials due to physical, chemical, and directional modification of graphene-based composites. The application of graphene-based materials in various construction materials, such as cement, anti-corrosion coatings, thermal and acoustic insulators, asphalt, and firefighting materials, are highlighted. Adding graphene to building materials improves durability, mechanical strength, hardness, and flexibility. However, modification, stability, compatibility, and uniform dispersion are among the key merits of developing optimized construction materials for the specified application. These materials with exceptional properties open new opportunities to give a boost to construction and building technology in terms of environmental protection and energy consumption. This review points out the enhancements that graphene may offer to the construction industry regarding main challenges in the future. Opportunities and limitations could guide researchers in the field to solve challenges, provide directions for future studies, and optimize construction materials on the basis of their applications. � 2022 Elsevier Ltd
26
Application of microwave plasma technology to convert carbon dioxide (CO2) into high value products: A review
(Elsevier Ltd, 2022)
Ong M.Y.
;
Nomanbhay S.
;
Kusumo F.
;
Show P.L.
;
57191970824
;
22135844300
;
56611974900
;
47861451300
The most important challenge faced by mankind in the 21st century is the global warming issues associated with the global energy demand. A sustainable and low carbon-based energy economy must be developed to reduce the dependency on non-renewable fossil fuels. Other than exploring renewable energy technology, such as solar, hydro, and wind, recycling and utilization of carbon dioxide (CO2) in synthesizing of high value-added products is also an alternative solution to mitigate climate change. As a potential technology, the plasma-based decomposition of CO2 has received a lot of interest, especially microwave discharge due to its outstanding ability to produce non-equilibrium plasma with high ionization power, to convert CO2 in an energy-efficient manner, and others. Hence, this paper is written to provide an overview of the microwave plasma technology on CO2 conversion. The basic theory of plasma technology has also been discussed to brief the readers, particularly the non-specialist, on the technical background. The parameters that affect the performance of the CO2 conversion process under microwave discharge such as pressure, microwave power supply, gas flow rate/pattern, co-reactant, and catalyst, are also highlighted. To sum up, the prospects and challenges for the commercialization of CO2 utilization, such as methane(CH4) with CO2 reforming in syngas production, using microwave plasma technology have also been emphasized. � 2022
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