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alkali-silica reaction (ASR) 2

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Privacy and security federated reference architecture for Internet of Things Position Paper

Musab KAMAL, Imran RASHID, Waseem IQBAL, Muhammad Haroon SIDDIQUI, Sohaib KHAN, Ijaz AHMAD,waseem.iqbal@mcs.edu.pk

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 4,   Pages 481-508 doi: 10.1631/FITEE.2200368

Abstract: Physical objects are getting connected to the Internet at an exceptional rate, making the idea of the a reality. The IoT ecosystem is evident everywhere in the form of smart homes, health care systems, wearables, connected vehicles, and industries. This has given rise to risks associated with the privacy and security of systems. Security issues and cyber attacks on IoT devices may potentially hinder the growth of IoT products due to deficiencies in the architecture. To counter these issues, we need to implement privacy and security right from the building blocks of IoT. The IoT architecture has evolved over the years, improving the stack of architecture with new solutions such as scalability, management, interoperability, and extensibility. This emphasizes the need to standardize and organize the IoT reference architecture in federation with privacy and security concerns. In this study, we examine and analyze 12 existing IoT reference architectures to identify their shortcomings on the basis of the requirements addressed in the standards. We propose an architecture, the privacy-federated IoT security reference architecture (PF-IoT-SRA), which interprets all the involved privacy metrics and counters major threats and attacks in the IoT communication environment. It is a step toward the standardization of the domain architecture. We effectively validate our proposed reference architecture using the , an industry-recognized scenario-based approach.

Keywords： Architecturally significant requirement (ASR)     Architecture trade-off analysis method (ATAM)     Internet    

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An Algorithm to compute damage from load in composites

Cyrille F. DUNANT, Stéphane P. A. BORDAS, Pierre KERFRIDEN, Karen L. SCRIVENER, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 180-193 doi: 10.1007/s11709-011-0107-9

Abstract: We present a new method to model fracture of concrete based on energy minimisation. The concrete is considered on the mesoscale as composite consisting of cement paste, aggregates and micro pores. In this first step, the alkali-silica reaction is taken into account through damage mechanics though the process is more complex involving thermo-hygro-chemo-mechanical reaction. We use a non-local damage model that ensures the well-posedness of the boundary value problem (BVP). In contrast to existing methods, the interactions between degrees of freedom evolve with the damage evolutions. Numerical results are compared to analytical and experimental results and show good agreement.

Keywords： Concrete     damage     prediction     modelling     energy minimisation     ASR    

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A general framework for modeling long-term behavior of earth and concrete dams

Bernhard A. SCHREFLER, Francesco PESAVENTO, Lorenzo SANAVIA, Giuseppe SCIUME, Stefano SECCHI, Luciano SIMONI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 41-52 doi: 10.1007/s11709-010-0070-x

Abstract: They range from hydraulic fracturing to alkali-silica reaction (ASR) and to repair work in concrete dams

Keywords： multiphase porous materials     coupled problems     hydraulic fracture     concrete hydration     alkali-silica reaction (ASR    

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Multiscale Homogenization Analysis of Alkali–Silica Reaction (ASR) Effect in Concrete Article

Roozbeh Rezakhani, Mohammed Alnaggar, Gianluca Cusatis

Engineering 2019, Volume 5, Issue 6,   Pages 1139-1154 doi: 10.1016/j.eng.2019.02.007

Abstract:

The alkali–silica reaction (ASR) is one of the major long-term deterioration mechanisms occurringASR is a chemical reaction between the silica existing inside the aggregate pieces and the alkali ionsThis chemical reaction produces ASR gel, which imbibes additional water, leading to gel swelling.and validated the resulting model, entitled ASR-LDPM, against several experimental data sets., while ASR-LDPM is utilized as the mesoscale model.

Keywords： Multiscale homogenization     Representative volume element     Alkali–silica reaction     Lattice discrete particle model    

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Modeling of alkali-silica reaction in concrete: a review

J.W. PAN, Y.T. FENG, J.T. WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 1-18 doi: 10.1007/s11709-012-0141-2

Abstract: This paper presents a comprehensive review of modeling of alkali-silica reaction (ASR) in concrete.The concept of ASR and the mechanism of expansion are first outlined, and the state-of-the-art of modelingfor ASR, the focus of the paper, is then presented in detail.The modeling includes theoretical approaches, meso- and macroscopic models for ASR analysis.Mesoscopic models have attempted to explain the mechanism of mechanical deterioration of ASR-affected

Keywords： alkali-silica reaction (ASR)     modeling     concrete     mesoscopic     macroscopic    

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Utilization of nano/micro-size iron recovered from the fine fraction of automobile shredder residue for phenol degradation in water

Jiwan SINGH, Yoon-Young CHANG, Jae-Kyu YANG, Seon-Hong KANG, Janardhan Reddy KODURU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0848-8

Abstract: The study investigates the magnetic separation of Fe from automobile shredder residue (ASR) (<0.25 mm

Keywords： Automobile shredder residue (ASR)     Fe     Phenol     Scanning electron microscopy (SEM) and Fourier transform    

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Title Author Date Type Operation

Privacy and security federated reference architecture for Internet of Things

Musab KAMAL, Imran RASHID, Waseem IQBAL, Muhammad Haroon SIDDIQUI, Sohaib KHAN, Ijaz AHMAD,waseem.iqbal@mcs.edu.pk

Journal Article

An Algorithm to compute damage from load in composites

Cyrille F. DUNANT, Stéphane P. A. BORDAS, Pierre KERFRIDEN, Karen L. SCRIVENER, Timon RABCZUK

Journal Article

A general framework for modeling long-term behavior of earth and concrete dams

Bernhard A. SCHREFLER, Francesco PESAVENTO, Lorenzo SANAVIA, Giuseppe SCIUME, Stefano SECCHI, Luciano SIMONI

Journal Article

Multiscale Homogenization Analysis of Alkali–Silica Reaction (ASR) Effect in Concrete

Roozbeh Rezakhani, Mohammed Alnaggar, Gianluca Cusatis

Journal Article

Modeling of alkali-silica reaction in concrete: a review

J.W. PAN, Y.T. FENG, J.T. WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN

Journal Article

Utilization of nano/micro-size iron recovered from the fine fraction of automobile shredder residue for phenol degradation in water

Jiwan SINGH, Yoon-Young CHANG, Jae-Kyu YANG, Seon-Hong KANG, Janardhan Reddy KODURU

Journal Article