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Modifying effects and mechanisms of superfine stainless wires on microstructures and mechanical properties of ultra-high performance seawater sea-sand concrete

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Science China(Technological Sciences) 2024年第10期67卷 3205-3220页

作者： YU Feng DONG SuFen ASHOUR Ashraf DING SiQi HAN BaoGuo School of Infrastructure Engineering Dalian University of TechnologyDalian 116024China Faculty of Engineering&Informatics University of BradfordBradford BD71DPUK Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China

Ultra-high-performance seawater sea-sand concrete(UHPSSC)presents a prospective solution to address the natural resource shortage in marine infrastructure *** eliminate the corrosion risk of steel fibers and broaden the applicability of UHPSSC,this study investigates the mechanical properties and free chloride ion content as well as microstructures of UHPSSC reinforced with superfine stainless wires(SSWs)under natural *** results indicate that 1.5%SSWs can remarkably improve the flexural strength and toughness of UHPSSC by 127%and 1724%,respectively,and mitigate the long-term strength degradation of *** strong interfacial bond between SSW and UHPSSC improves the compactness of UHPSSC,thus reducing the growth space for Ca(OH)_(2) crystals and swelling hydration products generated by sulfate and magnesium *** can be supported by the observed reduction in the Ca/Si ratio of C–S–H gels,CH crystal orientation index,and ***,through mechanisms such as pull-out,rupture,overlapping network,and internal anchor interface,SSWs effectively prevent microcrack growth and propagation,transforming single long-connected microcracks into multiple-emission microcracks centered on ***,the free chloride ion content of the composites at 28 and 180 d meets the ACI 318-19 standard requirements for concrete exposed to *** compliance is attributed to the chloride immobilization facilitated by Friedel’s salt and C–S–H gels within the interfaces around SSWs and ***,SSWs-reinforced UHPSSC exhibits considerable potential for applications in sustainable marine infrastructures,demanding long-term mechanical properties and high durability.

关键词： ultra-high performance seawater sea-sand concrete superfine stainless wire mechanical properties chloride ion content,microstructure

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Exploring the potential of fish waste (Sardinella fimbriata) through pyrolysis: A study of kinetics and thermodynamics using isoconversional methods

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Materials Science for Energy Technologies 2023年第1期6卷 460-471页

作者： Iffah Farhah Mohd Yusof, Nurul Aqilah Shamsuddin, Nurul Aini Zakaria, Hidayatul Farizan Munajat, Nur Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu 21030 Kuala Nerus Terengganu Malaysia Eastern Corridor Renewable Energy SIG Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu 21030 Kuala Nerus Terengganu Malaysia

The growing global demand for fish has led to an increase in fish waste (FW) production, necessitating efficient waste management strategies. Pyrolysis is a promising way to convert fish waste into high-value products. To achieve optimal waste mass reduction and gain insights into the pyrolysis process, estimating kinetic parameters is essential. This study investigated the pyrolysis of FW, Sardinella fimbriata, a previously unexplored waste source, using a thermogravimetric analyser. The study determined an average activation energy value of 84–124 kJ/mol using model-free isoconversional methods including Flynn-Wall–Ozawa, Kissinger–Akahira–Sunose, and Starink, whereas pre-exponential factor values were predicted to be between 102 and 1011 s−1. Further analysis using Criado's reduced master-plot approach showed that the experimental curves for pyrolysis coincided with many different theoretical plots for reaction mechanisms, with a concentration on reaction-order models. The analysis of thermodynamic parameters showed positive values of enthalpy change and Gibbs energy change for S. fimbriata FW pyrolysis, suggesting that the process is endothermic and non-spontaneous, while negative values of entropy change were observed across all conversion degrees as a result of the breakdown of complex organic molecules into simpler compounds. This study provides insights into the feasibility of thermal processes and offers new guidance for FW waste management and resource recovery, expanding the understanding of pyrolysis kinetics and thermodynamics for fish waste treatment. © 2023

关键词： Thermodynamics

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Green Measurements for Software Product Based on Sustainability Dimensions

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Computer Systems Science & engineering 2022年第4期41卷 271-288页

作者： Komeil Raisian Jamaiah Yahaya Aziz Deraman Department of Computer Isfahan(Khorasgan)BranchIslamic Azad UniversityIsfahanIran Faculty of Information Science and Technology Universiti Kebangsaan MalaysiaBangi43600SelangorMalaysia Faculty of Ocean Technology Engineering&Informatics Universiti Malaysia Terengganu21030TerengganuMalaysia

Software is a central component in the modern world and vastly affects the environment’s *** demand for energy and resource require-ments is rising when producing hardware and software *** study reveals that many studies focused on green hardware;however,limited efforts were made in the greenness of software *** software products are necessary to solve the issues and problems related to the long-term use of soft-ware,especially from a sustainability *** a proper mechanism for measuring the greenness of a particular software product executed in a speciﬁc environment,the mentioned beneﬁts will not be ***,there are not enough works to address this problem,and the green status of software products is uncertain and *** paper aims to identify the green measurements based on sustainable dimensions in a software *** second objective is to reveal the relationships between the elements and measurements through empirical *** study is conducted in two ***ﬁrst phase is the theoretical phase,where the main components,measurements and practices that inﬂuence the sustainability of a software product are identiﬁ*** second phase is the empirical study that involved 103 respondents in Malaysia investigating current practices of green software in the industrial environment and further identifying the main sustainability dimensions and measurements and their impact on achiev-ing green software *** study has revealed seven green measurements of software product:Productivity,Usability,Cost Reduction,Employee Support,Energy Efﬁciency,Resource Efﬁciency and Tool *** relationships are statistically signiﬁcant,with a signiﬁcance level of less than 0.01(p=0.000).Thus,the hypothesised relationships were all *** contributions of this study revolve around the research perspectives of the measurements to attain a green software product.

关键词： Green software product sustainability dimension empirical study green measurements

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UMTCSF: A Graduate Forum Platform Utilizing an Ensemble Similarity Model

UMTCSF: A Graduate Forum Platform Utilizing an Ensemble Simi...

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2023 International Conference on informatics engineering, Science and technology, INCITEST 2023

作者： Alhadi, Arifah Che Wan Yussof, Wan Nural Jawahir Mohamed, Akashah Amin Deraman, Aziz Abdul Jalil, Masita Masila Mohemad, Rosmayati Universiti Malaysia Terengganu Faculty of Ocean Engineering Technology and Informatics Malaysia

ISBN: (纸本)9798350317862

Online forum platforms have emerged as highly popular digital communities for seeking and sharing valuable information. Within these platforms, searches are typically constrained to keyword-based queries. However, the presence of noise in keywords, such as spelling errors or abbreviations, often impedes accurate information retrieval. The impact of this noise on search results poses challenges to both the effectiveness and efficiency of the retrieval process. This study introduces an ensemble similarity model that combines the Vector Space Model (VSM) with edit distance models to enhance thread analysis within a graduate discussion forum. The UMT Computer Science Forum System (UMTCSF) serves as an online platform for Computer Science students to engage in discussions encompassing questions, answers, and topic exploration. Operating in real-time through a web-based application, UMTCSF employs similarity analysis while effectively addressing keyword search noise. An ensemble similarity model demonstrates its potential and practicality in improving search result rankings. By adeptly combining different models and addressing keyword-related challenges, UMTCSF presents a valuable solution for facilitating efficient and accurate information retrieval within the realm of graduate forum discussions. © 2023 IEEE.

关键词： Information retrieval

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Lung Cancer Detection on CT Scan Images with Deep Learning Methods: Sugeno Fuzzy Integral-Based CNN Ensemble Method

Lung Cancer Detection on CT Scan Images with Deep Learning M...

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2023 International Conference on informatics engineering, Science and technology, INCITEST 2023

作者： Lim, Soong Xian Abdul Jalil, Masita Masila Virgiyanti, Wiwied Yunus, Farizah Universiti Malaysia Terengganu Faculty of Ocean Engineering Soong Xian Lim Technology and Informatics Kuala Nerus Malaysia Universiti Malaysia Terengganu Faculty of Ocean Engineering Technology and Informatics Kuala Nerus Malaysia

ISBN: (纸本)9798350317862

Lung cancer causes the highest mortality rate among all cancers. Existing methods for detecting Lung cancer are not optimal, as they rely mostly on a single model or multiple models employing probability averaging. This study is proposed to differentiate malignant, benign and normal cells of lung by employing the Sugeno Ensemble method in conjunction with four Convolutional Neural Networks (CNN): VGG11, SqueezeNet, GoogLeNet, and Wide ResNet-50-2 to improve accuracy of Lung cancer detection. Each model will be individually trained with the dataset before Sugeno ensemble is performed to produce the final accuracy. This study evaluates the accuracy of applying Sugeno fuzzy logic techniques to CT scan images of Lung cancer to determine if it outperforms existing methods and investigates the limitations of earlier research. This study examines the image of cancer morphologies from various patients. The confusion matrix is then utilized to evaluate the performance of the framework. The ultimate achieved accuracy rate is 98.47%. This study found that integrating the Sugeno ensemble technique with the four CNN models increases Lung cancer detection performance. These discoveries could aid in the development of systems to identify Lung cancer patients and provide implications for artificial intelligence and the medical industry. © 2023 IEEE.

关键词： Diseases

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Project Assessment in Offshore Software Maintenance Outsourcing Using Deep Extreme Learning Machines

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Computers, Materials & Continua 2023年第1期74卷 1871-1886页

作者： Atif Ikram Masita Abdul Jalil Amir Bin Ngah Saqib Raza Ahmad Salman Khan Yasir Mahmood Nazri Kama Azri Azmi Assad Alzayed Faculty of Ocean Engineering Technology and Informatics University Malaysia TerengganuKuala NerusMalaysia Department of Computer Science&Information Technology Faculty of Information TechnologyThe University of LahoreLahore54000Pakistan Department of Software Engineering Faculty of Information TechnologyThe University of LahoreLahore54000Pakistan Advanced Informatics Department Razak Faculty of Technology and InformaticsUniversiti Teknologi Malaysia54100Kuala LumpurMalaysia Computer Science and Information Systems Department College of Business Studies Public Authority for Applied Education and Training(PAAET)AdailiyahKuwait Department of Computer Science Sharif College of Engineering&TechnologyLahore54000Pakistan

Software maintenance is the process of fixing,modifying,and improving software deliverables after they are delivered to the *** can benefit from offshore software maintenance outsourcing(OSMO)in different ways,including time savings,cost savings,and improving the software quality and *** of the hardest challenges for the OSMO vendor is to choose a suitable project among several clients’*** goal of the current study is to recommend a machine learning-based decision support system that OSMO vendors can utilize to forecast or assess the project of OSMO *** projects belong to OSMO vendors,having offices in developing countries while providing services to developed *** the current study,Extreme Learning Machine’s(ELM’s)variant called Deep Extreme Learning Machines(DELMs)is used.A novel dataset consisting of 195 projects data is proposed to train the model and to evaluate the overall efficiency of the proposed *** proposed DELM’s based model evaluations achieved 90.017%training accuracy having a value with 1.412×10^(-3) Root Mean Square Error(RMSE)and 85.772%testing accuracy with 1.569×10^(-3) RMSE with five DELMs hidden *** results express that the suggested model has gained a notable recognition rate in comparison to any previous *** current study also concludes DELMs as the most applicable and useful technique for OSMO client’s project assessment.

关键词： Software outsourcing deep extreme learning machine(DELM) machine learning(ML) extreme learning machine assessment

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Chunking virtual literacy instruction on TikTok for Z generation

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Library Hi Tech News 2023年第5期40卷 13-14页

作者： Anna, Nove E. Variant Ismail, Noraini Faculty of Vocational Studies Universitas Airlangga Surabaya Indonesia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Terengganu Malaysia

Purpose: This paper aims to explore the possibility of the use of TikTok for delivery virtual literacy instruction for Z generation to support their learning. Design/methodology/approach: A review of papers related to TikTok and library instruction is presented, and some libraries that use TikTok to deliver instruction are observed. Findings: Some libraries already use TikTok as a supplementary of social media to deliver instruction, due to the nature of TikTok is for short video up to 3 minutes, therefore it is good if librarian can design instruction in chunking basis, or bite size so users will easily engage. Originality/value: The use of TikTok for library instruction is still new, and this will bring value to libraries, especially academic library when they want start to use TikTok for their instruction. © 2023, Emerald Publishing Limited.

关键词： Chunk instruction Education Information literacy instruction TikTok Video platform

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Numerical investigation of non-cohesive seabed response around a mono-pile by crossing wave-current

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Water Science and engineering 2022年第1期15卷 57-68页

作者： Jie Lin Ya-kun Guo Xiamen Ocean Vocational College Xiamen 361012China Key Laboratory of Coastal Disaster and Defence of Ministry of Education Hohai UniversityNanjing 210098China Faculty of Engineering&Informatics University of BradfordBradford BD71DPUK

The interaction between waves and currents in the ocean often complicates the flow field around *** this study,a three-dimensional integrated numerical model was established to investigate the seabed response and liquefaction around a mono-pile under different wave-current interaction *** the present model,the Reynolds-averaged Navier-Stokes equations were used to simulate the flow field,and the Biot's poro-elastic theory was adopted to calculate the seabed response caused by crossing wave-current *** previous studies,the load on the mono-pile was considered,and the wave-current interaction angle was extended to 180°,which was more in line with practical engineering *** numerical results were in a good agreement with the experimental *** results indicated that waves interacted with currents in a large angle could result in a large momentary liquefaction depth of the *** parametric studies proved that the position of the front and two sides of the pile was relatively safer compared with that of the leeside of the pile,and the surface of the seabed downstream of the pile was liable to liquefy.

关键词： Wave-current interaction Mono-pile Seabed response Liquefaction Wave-current model Seabed model

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Offshore Software Maintenance Outsourcing Process Model Validation:A Case Study Approach

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Computers, Materials & Continua 2023年第3期74卷 5035-5048页

作者： Atif Ikram Masita Abdul Jalil Amir Bin Ngah Adel Sulaiman Muhammad Akram Ahmad Salman Khan Faculty of Ocean Engineering Technology and Informatics University Malaysia TerengganuKuala TerengganuMalaysia Department of Computer Science&Information Technology Faculty of Information TechnologyThe University of LahoreLahore54000Pakistan Department of Computer Science College of Computer Science and Information SystemsNajran UniversityNajranSaudi Arabia Department of Software Engineering Faculty of Information TechnologyThe University of LahoreLahore54000Pakistan

The successful execution and management of Offshore Software Maintenance Outsourcing(OSMO)can be very beneficial for OSMO vendors and the OSMO *** a lot of research on software outsourcing is going on,most of the existing literature on offshore outsourcing deals with the outsourcing of software development *** frameworks have been developed focusing on guiding software systemmanagers concerning offshore software ***,none of these studies delivered comprehensive guidelines for managing the whole process of *** is a considerable lack of research working on managing OSMO from a vendor’s ***,to find the best practices for managing an OSMO process,it is necessary to further investigate such complex and multifaceted phenomena from the vendor’s *** study validated the preliminary OSMO process model via a case study research *** results showed that the OSMO process model is applicable in an industrial setting with few *** industrial data collected during the case study enabled this paper to extend the preliminary OSMO process *** refined version of the OSMO processmodel has four major phases including(i)Project Assessment,(ii)SLA(iii)Execution,and(iv)Risk.

关键词： Offshore outsourcing process model model validation vendor challenges case study

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Load balancing and auto-scaling issues in container microservice cloud-based system: a review on the current trend technologies

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International Journal of Web engineering and technology 2023年第4期18卷 294-318页

作者： Rabiu, Shamsuddeen Yong, Chan Huah Syed-Mohamad, Sharifah Mashita School of Computer Sciences Universiti Sains Malaysia Penang Minden11800 Malaysia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Terengganu Kuala Nerus21030 Malaysia

Load balancing and auto-scaling are essential to cloud features for cloud-based container microservices as they control the number of computing resources available. Many research works have proposed load balancing and auto-scaling approaches for microservices individually;however, they are less likely to propose the two approaches in solving their problems simultaneously. The paper aimed to critically analyse the current issues related to load balancing and auto-scaling in container microservices cloud-based systems. This will open room for researchers in the field to enhance performance for better QoS to the users. We present a comprehensive literature review of the existing techniques used for load balancing and auto-scaling in cloud-based containerised microservice applications. After the in-depth review, it is found that load balancing and auto-scaling contribute as a value-added feature to the microservice applications. This can optimise the issues of Servers overloaded, service failure, traffic spikes, et cetera, during the microservices communication phase. Copyright © 2023 Inderscience Enterprises Ltd.

关键词： Quality of service

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