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Peat properties of a tropical forest reserve adjacent to a fire-break canal

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Journal of Forestry Research 2024年第1期35卷 155-167页

作者： Dayang Nur Sakinah Musa Mohd Zahirasri Mohd Tohir Xinyan Huang Luqman Chuah Abdullah Mohamad Syazaruddin Md Said Muhammad firdaus Sulaiman Safety Engineering Interest Group(SEIG) Department of Chemical and Environmental EngineeringFaculty of EngineeringUniversiti Putra Malaysia43400 UPM SerdangSelangorMalaysia International Tropical Forestry Programme Faculty of Tropical ForestryUniversiti Malaysia SabahSabahMalaysia Department of Land Management Faculty of AgricultureUniversiti Putra MalaysiaSelangorMalaysia Research Centre for Fire Safety Engineering Department of Building Environment and Energy EngineeringThe Hong Kong Polytechnic UniversityHong KongPeople’s Republic of China

Tropical peat comprises decomposed dead plant material and acts like a sponge to absorb water,making it fully ***,drought periods dry it readily and increases its vulnerability to *** fires emit greenhouse gases and particles contributing to haze,and prevention by constructing fire-break canals to reduce fire spread into forest reserves is *** paper aims to determine peat physical and chemical properties near a fire-break canal at different fire frequency *** sampling was conducted at two forest reserves in Malaysia which represent low fire frequency and high fire frequency *** results show that peat properties were not affected by the construction of a fire-break canal,however lignin and cellulose content increased significantly from the distance of the canal in both *** study concluded that fire frequency did not significantly influence peat properties except for *** higher fibre content in the high frequency area did not influence moisture content nor the ability to regain ***,fire frequency might contribute differently to changes in physical and chemical properties,hence management efforts to construct fire-break canals and restoration efforts should protect peatlands from further *** findings will benefit future management and planning for forest reserves.

关键词： Peat fire Peat properties Fire-break canals Forest reserves

A Review and Bibliometric Analysis of the Current Studies for the 6G Networks

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Computer Modeling in Engineering & Sciences 2024年第9期140卷 2165-2206页

作者： Qusay M.Salih Md.Arafatur Rahman Ahmad firdaus Mohammed Rajih Jassim Hasan Kahtan Jasni Mohamad Zain Ahmed Hussein Ali Faculty of Computing Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Department of Medical Equipment Technology Engineering Al Salam University CollegeBaghdadIraq School of Mathematics and Computer Science University of WolverhamptonWolverhampton01902UK Department of Production Engineering and Metallurgy University of TechnologyBaghdadIraq Cardiff School of Technologies Cardiff Metropolitan UniversityCardiffCF52YBUK Institute for Big Data Analytics and Artificial Intelligence(IBDAAI) Kompleks Al-KhawarizmiUniversiti Teknologi MARAShah AlamSelangor40450Malaysia Department Computer Science Al-Salam University CollegeBaghdadIraq

The race to develop the next generation of wireless networks,known as Sixth Generation(6G)wireless,which will be operational in 2030,has already *** realize its full potential over the next decade,6G will undoubtedly necessitate additional improvements that integrate existing solutions with cutting-edge ***,the studies about 6G are mainly limited and scattered,whereas no bibliometric study covers the 6G ***,this study aims to review,examine,and summarize existing studies and research activities in *** study has examined the Scopus database through a bibliometric analysis of more than 1,000 papers published between 2017 and ***,we applied the bibliometric analysis methods by including(1)document type,(2)subject area,(3)author,and(4)country of *** study’s results reflect the research 6G community’s trends,highlight important research challenges,and elucidate potential directions for future research in this interesting area.

关键词： 6G bibliometric wireless networks review

A Blockchain-Assisted Distributed Edge Intelligence for Privacy-Preserving Vehicular Networks

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Computers, Materials & Continua 2023年第9期76卷 2959-2978页

作者： Muhammad firdaus Harashta Tatimma Larasati Kyung-Hyune Rhee Department of Artificial Intelligence Convergence Pukyong National UniversityBusan48513Korea School of Electrical Engineering and Informatics Institut Teknologi BandungBandung40132Indonesia College of Information Technology and Convergence Division of Computer Engineering and AIPukyong National UniversityBusan48513Korea

The enormous volume of heterogeneous data fromvarious smart device-based applications has growingly increased a deeply interlaced cyber-physical *** order to deliver smart cloud services that require low latency with strong computational processing capabilities,the Edge Intelligence System(EIS)idea is now being employed,which takes advantage of Artificial Intelligence(AI)and Edge Computing Technology(ECT).Thus,EIS presents a potential approach to enforcing future Intelligent Transportation Systems(ITS),particularly within a context of a Vehicular Network(VNets).However,the current EIS framework meets some issues and is conceivably vulnerable tomultiple adversarial attacks because the central aggregator server handles the entire ***,this paper introduces the concept of distributed edge intelligence,combining the advantages of Federated Learning(FL),Differential Privacy(DP),and blockchain to address the issues raised *** performing decentralized data management and storing transactions in immutable distributed ledger networks,the blockchain-assisted FL method improves user privacy and boosts traffic prediction ***,DP is utilized in defending the user’s private data from various threats and is given the authority to bolster the confidentiality of data-sharing *** model has been deployed in two strategies:First,DP-based FL to strengthen user privacy by masking the intermediate data during model ***,blockchain-based FL to effectively construct secure and decentralized traffic management in vehicular *** simulation results demonstrated that our framework yields several benefits for VNets privacy protection by forming a distributed EIS with privacy budget(ε)of 4.03,1.18,and 0.522,achieving model accuracy of 95.8%,93.78%,and 89.31%,respectively.

关键词： Edge intelligence federated learning differential privacy blockchain vehicular networks

Flow and heat transfer of a nanofluid through a porous medium due to stretching/shrinking sheet with suction,magnetic field and thermal radiation

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Applied Mathematics(A Journal of Chinese Universities) 2023年第3期38卷 373-391页

作者： Ubaidullah Yashkun Khairy Zaimi Suliadi firdaus Sufahani Mohamed REid Mohammad Ferdows Centre of Excellence for Social Innovation and Sustainability Institute of EngineeringUniversiti Malaysia PerlisPauh Putra Campus02600ArauPerlisMalaysia Department of Mathematics Sukkur IBA UniversityAirport RoadSukkur65200SindhPakistan Department of Mathematics and Statistics Faculty of Applied Sciences and TechnologyUniversiti Tun Hussein Onn MalaysiaJohorMalaysia Department of Mathematics Faculty of ScienceNew Valley UniversityAl-Wadi Al-GadidAl-Kharga 72511Egypt Mathematics Department Faculty of ScienceNorthern Border UniversityArar 1321Saudi Arabia Research Group of Fluid Flow Modeling and Simulation Department of Applied MathematicsUniversity of DhakaDhaka-1000Bangladesh

This study investigates the suction and magnetic field effects on the two-dimensional nanofluid flow through a stretching/shrinking sheet at the stagnation point in the porous medium with thermal *** governing partial differential equations(PDEs)are converted into ordinary differential equations(ODEs)using the similarity *** resulting ODEs are then solved numerically by using the bvp4c solver in MATLAB *** was found that dual solutions exist for the shrinking parameter values up to a certain *** numerical results obtained are compared,and the comparison showed a good agreement with the existing results in the *** governing parameters’effect on the velocity,temperature and nanoparticle fraction fields as well as the skin friction coefficient,the local Nusselt number and the Sherwood number are represented graphically and *** variation of the velocity,temperature and concentration increase with the increase in the suction and magnetic field *** seems that the thermal radiation effect has increased the local Sherwood number while the local Nusselt number is reduced with it.

关键词： stagnation point flow nanofluid porous medium suction magnetohydrodynamic thermal radiation

Integrating semantic features in fruit recognition based on perceptual color and semantic template

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Information Processing in Agriculture 2022年第2期9卷 316-334页

作者： Ema Rachmawati Iping Supriana Masayu Leylia Khodra Fauzan firdaus School of Computing Universitas TelkomBandung 40257Indonesia School of Electrical Engineering and Informatics Institut Teknologi BandungBandung 40132Indonesia University Center of Excellence on Artificial Intelligence for Vision Natural Language Processing&Big Data Analytics(U-CoE AI-VLB)Institut Teknologi BandungBandung 40132Indonesia

Many fruit recognition works have applied statistical approaches to make an exact correlation between low-level visual feature information and high-level semantic concepts givenby predefined text caption or keywords. Two common fruit recognition models include bagof-features (BoF) and convolutional neural network (ConvNet), which achieve highperformance results. In most cases, the overfitting problem is unavoidable. This problemmakes it difficult to generalize new instances with only a slightly different appearance,although belonging to the same category. This article proposes a new fruit recognitionmodel by associating an object’s low-level features in an image with a high-level *** define a perceptual color for each fruit species to construct a relationship between fruitcolor and semantic color name. Furthermore, we develop our model by integrating the perceptual color and semantic template concept to solve the overfitting problem. The semantic template concept as a mapping between the high-level concept and the low-level visualfeature is adopted in this model. The experiment was conducted on three different fruitimage datasets, with one dataset as train data and the two others as test data. The experimental results demonstrate that the proposed model, called perceptual color on semantictemplate (PCoST), is significantly better than the BoF and ConvNet models in reducing theoverfitting problem.

关键词： Multi-class fruit recognition Perceptual color Semantic template Bag-of-features

Improved Test Case Selection Algorithm to Reduce Time in Regression Testing

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Computers, Materials & Continua 2022年第7期72卷 635-650页

作者： Israr Ghani Wan M.N.Wan-Kadir Adila firdaus Arbain Noraini Ibrahim School of Computing Faculty of EngineeringUniversiti Teknologi Malaysia(UTM)Johor Bahru81310Malaysia

Regression testing(RT)is an essential but an expensive activity in software *** confirms that new faults/errors will not have occurred in the modified *** efficiency can be improved through an effective technique of selected only modified test cases that appropriate to the modifications within the given time ***,several test case selection approaches have been introduced,but either these techniques were not sufficient according to the requirements of software tester experts or they are ineffective and cannot be used for available test suite specifications and *** address these limitations,we recommend an improved and efficient test case selection(TCS)algorithm for *** proposed technique decreases the execution time and redundancy of the duplicate test cases(TC)and detects onlymodified changes that appropriate to themodifications in test *** reduce execution time for TCS,evaluation results of our proposed approach are established on fault detection,redundancy and already executed test *** indicate that proposed technique decreases the inclusive testing time of TCS to execute modified test cases by,on average related to a method of Hybrid Whale Algorithm(HWOA),which is a progressive TCS approach in regression testing for a single product.

关键词： Test case selection regression testing change detection TCS algorithm test suite minimization

Antibacterial chitosan-Dioscorea alata starch film enriched with essential oils optimally prepared by following response surface methodology

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Food Bioscience 2022年第2期46卷 912-922页

作者： Annisa Istiqomah Maryam Rahmi Utami Maulidan firdaus Venty Suryanti Triana Kusumaningsih Master Program of Chemistry Faculty of Mathematics and Natural SciencesSebelas Maret UniversityJl.Ir.Sutami No.36ASurakarta57126Indonesia Department of Chemistry Faculty of Mathematics and Natural SciencesSebelas Maret UniversityJl.Ir.Sutami No.36ASurakarta57126Indonesia

Numerous endeavours have been developed bio-based polymer packaging films to replace the use of petroleum-based *** this study,as a response and support to the enduring research issues,we have developed the optimization composite film formulation based on chitosan(2%),Dioscorea alata starch(0.5%),and glycerol(1.5%)had satisfactory result on several parameters consisting thickness(0.45 mm),solubility(472.1%),moisture content(29.872%),biodegradability(38.346%),elastic modulus(971.2 N/m2)and tensile strength(98.71 N/m).Further,the optimized chitosan film(CF)formulation was enriched with several essential oils(EO),i.e.,lemongrass,garlic and aloe vera *** the addition of EO,the solubility,biodegradable tests,and elongation to break of CF tended to decrease whereas the contact angle and mechanical properties significantly ***,the antibacterial properties of CF against Escherichia coli,Salmonella typhi,Staphylococcus aureus and Staphylococcus epidermidis dramatically increased by the addition of *** impressive results are expected to be applied in the food packaging industry to maintain the quality of food products.

关键词： Chitosan-based film Box-behnken design Food package Response surface methodology

Cold Plasma:A Potential Alternative for Rice Grain Postharvest Treatment Management in Malaysia

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Rice science 2022年第1期29卷 1-15页

作者： Mohd Fadthul Ikmal MISNAL Norizah REDZUAN Muhamad Nor firdaus ZAINAL Norhayati AHMAD Raja Kamarulzaman RAJA IBRAHIM Linda AGUN School of Mechanical Engineering Faculty of EngineeringUniversiti Teknologi MalaysiaJohor Bahru 81310JohorMalaysia Department of Physics Faculty of ScienceUniversiti Teknologi MalaysiaJohor Bahru 81310JohorMalaysia

Use of pesticides,herbicides and fertilizers is among the techniques to control insect pests and fungal ***,the technique is the major contributor to severe environmental implications in terms of air,water and soil ***,variable inconsistency becomes an important issue in the implementation of inclined bed dryers,leading to significant rice grain *** plasma technology has been widely proposed as a potential alternative for rice grain postharvest treatment management due to the presence of generated ionised gas that eventually produces reactive oxygen species or reactive nitrogen *** species are used to decontaminate foodborne pathogens,mycotoxins and bacterial *** review explores the current literature regarding cold plasma treatment technology,focusing on its efficiency as the microbial decontamination medium and insect pest mortality medium,and on the enhancement functional,nutritional and cooking properties,especially in rice *** studies have successfully demonstrated the ability of cold plasma treatment to significantly reduce the microbial count of foodborne pathogens,detoxify mycotoxins,and control seedborne rice seedling bacterial *** studies have also proved that the implementation of cold plasma technology in postharvest management should be seriously considered for improving rice grain quantity and quality in Malaysia.

关键词： rice grain postharvest management cold plasma microbial decontamination bacterial control

A Joint Optimization Algorithm for Renewable Energy System

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Intelligent Automation & Soft Computing 2023年第5期36卷 1979-1989页

作者： Imran Khan firdaus Muhammad-Sukki Jorge Alfredo Ardila Rey Abdullahi Abubakar Mas’ud Saud Jazaa Alshammari DagØivind Madsen Department of Electrical Engineering University of Engineering and TechnologyPeshawar814Pakistan School of Engineering&the Built Environment Edinburgh Napier UniversityMerchiston Campus10 Colinton RoadEdinburghEH105DTScotlandUK Department of Electrical Engineering Federico Santa María Technical UniversitySantiago8940000Chile Department of Electrical and Electronics Engineering Jubail Industrial CollegeP O Box 10099Jubail 31961Saudi Arabia University of South-Eastern Norway Bredalsveien143511HønefossNorway

Energy sustainability is a hot topic in both scientiﬁc and political *** date,two alternative approaches to this issue are being *** peo-ple believe that increasing power consumption is necessary for countries’economic and social progress,while others are more concerned with maintaining carbon consumption under set *** establish a secure,sustainable,and economical energy system while mitigating the consequences of climate change,most governments are currently pushing renewable growth *** mar-kets are meant to provide consumers with dependable electricity at the lowest pos-sible cost.A proﬁt-maximization optimal decision model is created in the electric power market with the combined wind,solar units,loads,and energy storage sys-tems,based on the bidding mechanism in the electricity market and operational *** model utterly considers the technological limits of new energy units and storages,as well as the involvement of new energy and electric vehicles in market bidding through power generation strategy and the output arrangement of the virtual power plant’s coordinated *** accuracy and validity of the optimal decision-making model of combined wind,solar units,loads,and energy storage systems are validated using numerical *** multi-operating scenarios,the effects of renewable energy output changes on joint sys-tem bidding techniques are compared.

关键词： Renewable energy optimizationalgorithm electricity market decision-making