Relevant bibliographies by topics / Model OSI/ISO

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Model OSI/ISO'

Author: Grafiati
Published: 24 April 2022
Last updated: 18 July 2025

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Journal articles on the topic "Model OSI/ISO"

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Balley, Lance R. "Applying the ISO/OSI model to distributed data entry systems." Controlled Clinical Trials 12, no. 5 (1991): 677. http://dx.doi.org/10.1016/0197-2456(91)90228-e.

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Yuliia, KOSTIUK, and SHESTAK Yaroslav. "THE TRANSPORT LAYER OF THE ISO/OSI MODEL IN COM­PUTER NETWORKS." INTERNATIONAL SCIENTIFIC-PRACTICAL JOURNAL "COMMODITIES AND MARKETS" 40, no. 4 (2021): 49–58. http://dx.doi.org/10.31617/tr.knute.2021(40)05.

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Background. The transport layer is designed to deliver data without errors, losses and duplication in the order in which they were transmitted. It provides data transfer between two applications with the required level of reliability. Transport layer protocols, which guarantee reliable data delivery, establish a virtual connection before data exchange and resend segments in case of loss or damage. The aim of the study was to determine the role of transport security protocols in computer networks. Materials and methods. To achieve the goal, the study used statistical analysis and a systematic approach. Results. TCP provides reliable message transmission through the formation of logical connections, while allowing peers on the sending computer and the receiving computer to support data exchange in duplex mode. It also has the ability to seamlessly send a byte stream generated on one of the computers to any other computer connected to the network.In addition, TCP controls the connection load, UDP does not control anything but the integrity of the received datagrams. Conclusion. The difference between TCP and UDP is the so-called "delivery guarantee". TCP requires a response from the client to whom the data packet is delivered, confirmation of delivery, and for this he needs a pre-established connection. TCP is also considered reliable, unlike UDP, which is called "unreliable datagram protocol". TCP eliminates data loss, duplication and shuffling of packets, delays, UDP allows all this, and it does not need a connection to work., as a result of which the data is transferred on UDP, should manage received, even with losses.
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Fincher, Judith A. "The ISO EDI conceptual model activity and its relationship to OSI." Library Hi Tech 8, no. 4 (1990): 83–91. http://dx.doi.org/10.1108/eb047810.

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Melendez, Wilfred A., and Erik Lorenz Petersen. "The upper layers of the ISO/OSI reference model (part I)." Computer Standards & Interfaces 5, no. 1 (1986): 13–46. http://dx.doi.org/10.1016/0920-5489(86)90067-x.

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Melendez, Wilfred A., and Erik Lorenz Petersen. "The upper layers of the ISO/OSI reference model (part II)." Computer Standards & Interfaces 5, no. 2 (1986): 65–77. http://dx.doi.org/10.1016/0920-5489(86)90072-3.

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Dudnik, Andriy, Ivan Bakhov, Oleksandr Makhovych, Yulia Ryabokin, and Oleksandr Usachenko. "Models and Methods for Improving Performance of Wireless Computer Networks Based on the Decomposition of Lower Layers of the OSI Reference Model." International Journal of Emerging Technology and Advanced Engineering 12, no. 1 (2022): 152–62. http://dx.doi.org/10.46338/ijetae0122_15.

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The paper discusses models and methods for improving the performance of wireless computer networks built based on the decomposition of the lower levels of the OSI reference model. A method to improve the performance of networks is suggested, which functionally combines the physical and network layers, which improves its efficiency in marginal reception areas almost twice. A model of the block diagram of a device for improving data transmission quality in marginal reception areas or those with insufficient noise immunity is developed based on the so-called communication quality status monitoring, as well as a model of the block diagram of a wireless adaptive capacity reallocation router based on dynamic channels capacity reallocation, which allows adequately reallocating IS resources depending on traffic and user priority. Keywords— Bluetooth, FIFO discipline, IEEE 802.11, OSI/ISO reference model, wireless computer networks.
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Olle, Bill. "ISO TC97/SC21/WG3: database standards work." ITNOW 29, no. 2 (1987): 13–16. https://doi.org/10.1093/combul/29.2.13.

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Abstract The International Standards Organisation (ISO) activity on database standardisation has been assigned to one of the largest technical committees, TC 97, which has the all embracing title of Information Systems. It has many subcommittees and the one which has had responsibility for database standards since 1984 is SC21 – Information Retrieval, Transfer and Management for OSL SC21 has six working groups, four of which are developing standards for the upper layers of the OSI Reference Model, one for graphics and one for database. The work of the latter, TC97/SC21/WG3, is the focus of this article.
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Рытов, Михаил, Mikhail Rytov, Павел Ковалев, and Pavel Kovalev. "Analysis of network communication problems of industrial enterprises with enterprise portals." Bulletin of Bryansk state technical university 2015, no. 1 (2015): 95–99. http://dx.doi.org/10.12737/22748.

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The article considers the result of analysis of network communication problems in the field of industrial enterprises, where the main part of the workflow control is an enterprise portal. This problem is considered from the point of view of the network model ISO / OSI, which groups communication functions into seven logical layers.
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Karbowski, Andrzej. "Distributed asynchronous algorithms in the Internet – new routing and traffic control methods." Journal of Telecommunications and Information Technology, no. 3 (September 30, 2005): 29–36. http://dx.doi.org/10.26636/jtit.2005.3.328.

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The paper presents several new algorithms concerning the third (network) and the fourth (transport) layer of ISO/OSI network model. For the third layer two classes of the shortest paths algorithms – label correcting and auction algorithms – are proposed. For the fourth layer an application of price decomposition to network optimization and Internet congestion control is suggested.
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Baazeem, Rami Mohammed. "Cybersecurity: BotNet Threat Detection Across the Seven-Layer ISO-OSI Model Using Machine Learning Techniques." Computing and Informatics 42, no. 5 (2023): 1060–90. http://dx.doi.org/10.31577/cai_2023_5_1060.

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Dissertations / Theses on the topic "Model OSI/ISO"

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Šoustar, Jiří. "Modul rozhraní Ethernet pro platformu FITkit." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2008. http://www.nusl.cz/ntk/nusl-235428.

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This graduation thesis is aimed at design and implementation of embedded systems, network communication and support of the network communication for embedded systems. Furthermore it introduces school platform FITkit and offers a conceptional extension of the network interface for this platform based on Ethernet network standard. Based on that conception I'm trying to find and describe suitable solution for FITkit platform which realizes a network interface as a form of extension module capable of development supporting.
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Pirkl, Tomáš. "Web server pro vestavěné aplikace." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2007. http://www.nusl.cz/ntk/nusl-412774.

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This work discuses Embedded Ethernet systems. Embedded Webserver Platform is designed. This design embrace microkontroler, Ethernet driver, and external SRAM. It includes implementation on PCB with MMC interface and software implementation of MMC driver and FAT file system. Reference model ISO/OSI, reference model TCP/IP, Ethernet and UDP, TCP, IP, HTTP protocol is presented.
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Švec, Adam. "Optimalizace přepínače v konvergované síti." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220343.

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Switch Optimization in a Converged Network thesis discusses the role of the Ethernet switch in the network. It describes differences between the switch and the hub in the network and the impacts on the collision domain size. In the converged network, priority data switching according to their origin and thus the qualitative point of view is also addressed - e-mails, voice services and multimedia will each behave differently. A real element, switch L3 - a switch with services quality support - is mentioned. The tool Matlab - Simulink is briefly described and a functional simplified model of the ethernet switch was created. Furthermore, the topic was used as a theme for a laboratory task in the subject Services of Telecommunication Networks. A model for Simulink and an example of the laboratory protocol for the created task are attached to the thesis.
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Scarlato, Michele. "Sicurezza di rete, analisi del traffico e monitoraggio." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3223/.

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Il lavoro è stato suddiviso in tre macro-aree. Una prima riguardante un'analisi teorica di come funzionano le intrusioni, di quali software vengono utilizzati per compierle, e di come proteggersi (usando i dispositivi che in termine generico si possono riconoscere come i firewall). Una seconda macro-area che analizza un'intrusione avvenuta dall'esterno verso dei server sensibili di una rete LAN. Questa analisi viene condotta sui file catturati dalle due interfacce di rete configurate in modalità promiscua su una sonda presente nella LAN. Le interfacce sono due per potersi interfacciare a due segmenti di LAN aventi due maschere di sotto-rete differenti. L'attacco viene analizzato mediante vari software. Si può infatti definire una terza parte del lavoro, la parte dove vengono analizzati i file catturati dalle due interfacce con i software che prima si occupano di analizzare i dati di contenuto completo, come Wireshark, poi dei software che si occupano di analizzare i dati di sessione che sono stati trattati con Argus, e infine i dati di tipo statistico che sono stati trattati con Ntop. Il penultimo capitolo, quello prima delle conclusioni, invece tratta l'installazione di Nagios, e la sua configurazione per il monitoraggio attraverso plugin dello spazio di disco rimanente su una macchina agent remota, e sui servizi MySql e DNS. Ovviamente Nagios può essere configurato per monitorare ogni tipo di servizio offerto sulla rete.
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Litwiński, Sławomir. "Lokalna sieć komputerowa do zbierania danych produkcyjnych z transmisją informacji po przewodach zasilania elektrycznego." Rozprawa doktorska, 1989. https://repolis.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=3651.

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Litwiński, Sławomir. "Lokalna sieć komputerowa do zbierania danych produkcyjnych z transmisją informacji po przewodach zasilania elektrycznego." Rozprawa doktorska, 1989. https://delibra.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=3651.

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Books on the topic "Model OSI/ISO"

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Computer Networking for Beginners: Your Guide for Mastering Computer Networking, Cisco IOS and the OSI Model. Independently Published, 2018.

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Krishnamurti, T. N., H. S. Bedi, and V. M. Hardiker. An Introduction to Global Spectral Modeling. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195094732.001.0001.

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This book is an indispensable guide to the methods used by nearly all major weather forecast centers in the United States, England, Japan, India, France, and Australia. Designed for senior-level undergraduates and first-year graduate students, the book provides an introduction to global spectral modeling. It begins with an introduction to elementary finite-difference methods and moves on towards the gradual description of sophisticated dynamical and physical models in spherical coordinates. Topics include computational aspects of the spectral transform method, the planetary boundary layer physics, the physics of precipitation processes in large-scale models, the radiative transfer including effects of diagnostic clouds and diurnal cycle, the surface energy balance over land and ocean, and the treatment of mountains. The discussion of model initialization includes the treatment of normal modes and physical processes, and the concluding chapter covers the spectral energetics as a diagnostic tool for model evaluation.
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Tabak, Rachel G., David A. Chambers, Mary Hook, and Ross C. Brownson. The Conceptual Basis for Dissemination and Implementation Research. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190683214.003.0005.

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There are tangible benefits to the use of models to inform dissemination and implementation research. However dissemination and implementation scientists may find it difficult to select, adapt, and apply a model to their work. Guidance is provided on how to select a model, as answering several questions (e.g., the research question, scope of the study) can aid a research team in selecting a model. Given the large number of models available and the amount of work required to develop a new model, a dissemination and implementation researcher likely does not need to create a new model. There is a need to look outside the field of health research to identify other models that might inform dissemination and implementation research, as reviews have identified gaps in availability models for certain types of dissemination and implementation research (e.g., policy research).
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Martin, Jeffrey J. Models of Disability. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190638054.003.0003.

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The purpose of this chapter is to describe the different models of disability to help sport and exercise psychology researchers understand the various philosophical and psychological perspectives embedded in each model. First examined is the medical model and how it frames disability as a personal flaw and a medical condition that needs fixing. The social model follows, which suggests that while people might have an impairment it is the physical and social environment that causes disability. The third model discussed is the social-relational model, which acknowledges that people’s physical impairment, the built environment, and other people’s attitudes can all influence the experience of disability. In the tragedy model, people have the cultural viewpoint that having an impairment is tragic, that people with disabilities have a poor quality of life and should be pitied. Finally, the affirmation model repudiates the tragedy model and suggests that having a disability, while challenging, is often embraced and can result in benefits. The strengths and weaknesses of all models are discussed and examples of disability sport psychology research are used to illustrate the models.
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Newman, Mark. Epidemics on networks. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805090.003.0016.

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This chapter discusses the spread of diseases over contact networks between individuals and the methods used to model this process. The chapter begins with an introduction to the classic models of mathematical epidemiology, including the SI model, the SIR model, and the SIS model. Models for coinfection and competition between diseases are also discussed, as well as “complex contagion” models used to represent the spread of information. The remainder of the chapter deals with the behavior of these models on networks, where the behavior of spreading diseases depends strongly on network structure. It is shown that the SIR model maps to a bond percolation process on networks, allowing us to solve for static properties such as the total number of individuals infected in a disease outbreak. The case of the configuration model is developed in detail and the calculations are extended to competing diseases, coinfection, and complex contagion. Time-dependent behavior of diseases on networks is also studied using various differential equation approximations, including pair approximations and degree-based approximations.
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Cheng, Russell. Embedded Model Problem. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198505044.003.0005.

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This chapter introduces embedded models. This is a special case of a parametric model which cannot be obtained simply by setting the parameters to particular values in a simple way. An example is the regression function y = b[1−exp(−ax)], which is always curved when a and b have fixed values. But letting a tend to zero and b tend to infinity simultaneously, whilst keeping ab = c fixed, yields y = cx, a straight-line special case. When this is the true model, fitting the original two-parameter model leads to very unstable and individually meaningless estimates of a and b. Such embedded models are actually very common in the literature, leading to confusion in interpretation of results when undetected. In this chapter, embeddedness is defined and a large number of regression embedded model examples given. Detection and removal of embeddedness by reparametrization is discussed. Two real data numerical examples are given.
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Sayers, Matthew R. Funeral and Ancestral Offerings. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198702603.003.0017.

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This chapter outlines the development of the enduring model of ritual ancestral offerings, the śrāddha. A discussion of the Vedic antecedents for ancestor worship provides context for describing the development of both solemn and domestic modes of ancestral offerings. The four forms of the śrāddha are described and shown to be a result of the synthesis of older ritual models. It is shown that three key historical shifts—the increasing importance of domestic modes of ritual activity, the greater extent and detail of textual treatments of the ancestral rites, and the central place given to ancestral ritual in the dharma tradition—play a key role in the development of the classical śrāddha, which becomes the paradigmatic ancestral rite that endures in contemporary practice.
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Succi, Sauro. Model Boltzmann Equations. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199592357.003.0008.

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This chapter deals with simplified models of the Boltzmann equation, aimed at reducing its mathematical complexity, while still retaining the most salient physical features. As observed many times in this book, the Boltzmann equation is all but an easy equation to solve. The situation surely improves by moving to its linearized version, but even then, a lot of painstaking labor is usually involved in deriving special solutions for the problem at hand. In order to ease this state of affairs, in the mid-fifties, stylized models of the Boltzmann equations were formulated, with the main intent of providing facilitated access to the main qualitative aspects of the actual solutions of the Boltzmann equation, without facing head-on with its mathematical complexity. As it is always the case with models, the art is not to throw away the baby with the tub water.
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Volberda, Henk, Frans A. J. Van Den Bosch, and Kevin Heij. Reinventing Business Models. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198792048.001.0001.

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Although research on business model innovation is flourishing internationally, important questions on the ‘how’, ‘what’, and ‘when’ of this process remain largely unanswered, particularly in regard to the role of top management. Using new knowledge derived from a survey among firms from various industries and several case studies, this book seeks to give us better understanding of ‘how’ firms can innovate their business model, ‘what’ kind of levers management should work on, and ‘when’ management should change the business model. It particularly considers one key question: is it better to replicate existing models or develop new ones? Renewal is especially vital in highly competitive environments. Nonetheless, whatever the environment, high levels of both replication and renewal will be key for a firm to succeed. This book looks at four levers that can be used by managers to innovate their business model: management itself, organizational form, technology, and co-creation with external parties are analysed. Furthermore, specific combinations which strengthen business model innovation are analysed. To help firms, the book also explores the different factors that can either enable or inhibit business model innovation. Through an investigation of replication versus renewal and of strategy-driven versus client-driven change, four distinct modes of business model innovation are identified: exploit and improve (replication which is strategy-driven); exploit and connect (replication which is customer-driven); explore and connect (renewal which is customer-driven); and explore and dominate (renewal which is strategy-driven). This book ends with a list of managerial dos and don’ts for business model innovation.
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van der Hulst, Harry. The RcvP Model. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198813576.003.0002.

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The theory of phonological structure (called ‘Radical CV Phonology’) is first outlined in Chapter 2. This theory is a development of Dependency Phonology. The chapter introduces a theory of elements and minimal vowel representations based on the Successive Division Algorithm. Other topics of relevance are underspecification, markednes, and enhancement. The model of Radical CV Phonology functions as the theoretical background of the set of elements that are active in the harmony systems that will be analyzed in Chapters 4–10 and is, as such, of interest to readers who want to know why we have these particular elements.
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Book chapters on the topic "Model OSI/ISO"

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Prosser, Alexander. "Das ISO-OSI-Modell." In Springers Angewandte Informatik. Springer Vienna, 1993. http://dx.doi.org/10.1007/978-3-7091-9273-3_1.

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Zucker, Gerhard, and Dietmar Dietrich. "ISO/OSI Model." In Electrical Engineering Handbook. CRC Press, 2011. http://dx.doi.org/10.1201/b10603-3.

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"The ISO OSI 7 layer model." In Understanding and Designing Computer Networks. Elsevier, 1995. https://doi.org/10.1016/b978-0-08-092862-3.50017-x.

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"ISO/OSI and TCP/IP Network Model Characteristics." In Information Security Management Handbook. Auerbach Publications, 2003. http://dx.doi.org/10.1201/noe0849385858-38.

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"The ISO model of Open Systems Interconnection (OSI)." In Communications Standards. Elsevier, 1986. http://dx.doi.org/10.1016/b978-0-08-034092-0.50024-7.

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"ISO/OSI and TCP/IP Network Model Characteristics." In Information Security Management Handbook. CRC Press, 2007. http://dx.doi.org/10.1201/9781439833032-155.

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McBride, George. "ISO/OSI and TCP/IP Network Model Characteristics." In Information Security Management Handbook, Sixth Edition. CRC Press, 2007. http://dx.doi.org/10.1201/9781439833032.ch144.

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"OSI Reference Model - The ISO Model of Architecture for Open Systems Interconnection." In The Best of the Best. IEEE, 2009. http://dx.doi.org/10.1109/9780470546543.ch49.

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Sayyad Abdi Amir Hossein and Sharifi Mohsen. "An Architectural Approach to Grid Provisioning." In Advances in Parallel Computing. IOS Press, 2018. https://doi.org/10.3233/978-1-61499-882-2-308.

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Grid computing has emerged as a new computing infrastructure aiming to make science advancement and progress a much simpler and enjoyable task: let everyone share what they have (stuff that others find quite appreciable), so they can do smarter, better, and be happier. With the emergence of Cloud computing as a Yet Another Hype in the computer arena, Grid computing has been slowly pushed out of the window. However, we believe that the goal and purpose of Grid computing is majestic and graceful. In this paper, we propose an architectural approach to Grid provisioning, bearing in mind that there are two successful phenomena, namely the Internet and the World Wide Web, that have always faced with the same problems that the Grid is facing now: (1) heterogeneity, and (2) geographical and administrative scalability. We take advantage of the layered architectural style that has proven to be useful and effective in designing complex systems such as the computer itself. We also use the underlying concepts of the ISO OSI Reference Model as the guideline.
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Bamforth, C. W., E. Canterranne, P. Chandley, and A. Onishi. "The molecular interactions of beer foam." In European Brewery Convention. Oxford University PressOxford, 1993. http://dx.doi.org/10.1093/oso/9780199634668.003.0036.

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Abstract The most foam stabilizing polypeptides in beer have high hydrophobic character. Whilst there is a diversity of such species in beer, they must interact with other components for acceptable foam quality to be realized. The interpretation of such interactions is easier if model protein systems are employed in experiments; for example, bovine serum albumin or hydrolyzed liquid egg white. The ability of such defined proteinaceous species to interact with metal ions and iso-a-acids differs substantially. The binding of divalent cations to iso-a-acids leads to enhanced interaction with monovalent cations. Similar mechanisms may account for the interaction of iso-a-acids wit foaming polypeptides.
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Conference papers on the topic "Model OSI/ISO"

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Red Martínez, David L. La, and Federico Agostini. "ISO/OSI model and data communication by animations." In 2013 International Conference on Information and Communication Technology for Education. WIT Press, 2014. http://dx.doi.org/10.2495/icte131162.

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Pardue, M. D., J. A. Harvey, K. D. Haupt, and T. A. Orlando. "Robustness, Quality of Service Parameters, and the ISO OSI Model." In IEEE Military Communications Conference MILCOM 1986. IEEE, 1986. http://dx.doi.org/10.1109/milcom.1986.4805676.

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Bedzak, Miroslaw. "Usering. Education self-tuning-recommendations in the 8th level of ISO/OSI model." In 2008 International Multiconference on Computer Science and Information Technology (IMCSIT). IEEE, 2008. http://dx.doi.org/10.1109/imcsit.2008.4747221.

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Ferreira, Rafael Vinícius Barros, Bruno P. T. Freitas, and Nilson M. Lazarin. "Uma abordagem para gestão de cenários no ensino de Segurança de Sistemas de Informação." In Anais Estendidos do Simpósio Brasileiro de Segurança da Informação e de Sistemas Computacionais. Sociedade Brasileira de Computação - SBC, 2023. http://dx.doi.org/10.5753/sbseg_estendido.2023.232140.

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A formação de profissionais capacitados para atuarem na área de Segurança de Sistemas de Informação (SSI) é de suma importância para atender a necessidade das organizações que necessitam de proteção de dados e sistemas. A ênfase somente no conteúdo teórico das disciplinas de SSI e a falta de uma preparação adequada para lidar com segurança, são alguns dos motivos apontados por egressos de cursos superiores, que impactam na não implementação de técnicas de prevenção de ataques cibernéticos em suas aplicações. Este trabalho propõe uma abordagem para gestão de cenários de ataque e defesa cibernética para serem utilizados em aulas práticas de SSI, através da definição de ambientes de rede contendo ativos das camadas 2, 3 e 7 do modelo ISO/OSI.
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Occhipinti, Enrico, and Daniela Colombini. "Trends in Management of Risks Associated to Biomechanical Overload Based on New ISO Technical Report." In Applied Human Factors and Ergonomics Conference. AHFE International, 2018. http://dx.doi.org/10.54941/10036.

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When studying WMSDs, several risk factors of different nature (mechanical, organizational, psychosocial, individual) are considered to be significant in general models of risk assessment and management and for epidemiologic purposes. As a consequence an “holistic” approach to their prevention was confirmed specially at international and national level when planning guidelines and interventions. On the other side there is a strong request, from OSH agencies and operators, for developing “simple” tools for risk assessment and management. ISO technical standard on “Ergonomics and Biomechanics” adopt a general approach to risk assessment and management according to four basic steps: hazard identification; risk estimation; detailed risk evaluation; risk reduction. ISO has defined a number of technical standards in the field of “physical ergonomics” regarding working postures, load manual handling, repetitive manual work (ISO 11226 and 11228 series) that in some manner take into account the contemporary presence of several risk factors. As a reaction to request from many practitioners, ISO has now completed a special application document (ISO TR 12295) to better clarify application procedures of the methods reported in such standards.
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Oleari, Claudio. "Image-Color Conversion and Digitalization based on a Chromatic Adaptation Model from the OSA-UCS System." In Imaging Systems and Applications. OSA, 2013. http://dx.doi.org/10.1364/isa.2013.im2e.2.

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Alfano, R. R., Q. Z. Wang, T. Jimbo, and Ping-Pei Ho. "Induced spectral broadening of a second harmonic pulse in ZnSe crystals generated by an intense ultrashort laser pulse." In OSA Annual Meeting. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/oam.1986.fb3.

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We report on the first observation of Induced spectral broadening (ISB) of a weak nonphase matching second harmonic pulse produced from the propagation of an intense primary picosecond laser pulse through ZnSe crystals. A mode-locked Nd:glass laser with a single 8-ps pulse at the 1060-nm wavelength was weakly focused Into the sample. Output signals were sent through a spectrograph to measure the spectral distribution. Measured spectra for nonphase matching SHG and ISB generated in ZnSe crystal by a 1060-nm laser pulse indicated the extent of the spectral broadening about the second harmonic line. When the Incident laser pulse energy was 2 mJ, there was spectral broadening of ~1,100 cm−1 on the Stokes side and 770 cm−1 on the anti-Stokes side. When pulse energy was <1 mJ, the ISB was found to be linearly dependent on the pulse energy of 1060 nm. The pulse duration of the ISB measured by a streak camera at 550 nm using a 10-nm narrowband filter was ~9 ps. The Pockels term of ZnSe is responsible for the sharp line ~100 cm−1 at the SHG frequency. This weak SHG pulse travels through the crystal together with the primary pulse. Due to the large n2 of ZnSe and the Intense incident 1060-nm laser, the spectral line of the weak 530-nm laser broadens. The ISB generated around the SHG 2w0 in ZnSe crystals is attributed to the induced phase modulation by an intense picosecond laser pulse at w0.
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Endo, Mitsuru, Takao Kakizaki, and Kazunori Nagasawa. "Development of a Sustainable System Emulator for Living Environments Powered by Renewable Energy." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-86817.

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In the present paper, a sustainable system emulator (SSE) for living environments powered by renewable energy sources is addressed. The main purpose of the SSE is to emulate the various factors that influence sustainability using a simple engineering approach. The main goal is to realize a useful mixed-reality platform for designing living environments with overall energy self-sufficiency as well as adequate habitability. The SSE design concept is based on the combination of an outer-system emulator (OSE) and an inner-system emulator (ISE). The OSE uses artificial lights and air blowers to emulate the sunshine and wind conditions in the Fukushima area of Japan. The ISE emulates the interior of a residential environment, based on renewable energy sources and power storage facilities, and consists of reduced-scale models powered by solar cells and a wind turbine. The ISE also includes DC appliances, which emulate domestic power usage, and electrochemical batteries for power storage. Control algorithms for energy management can also be implemented in the SSE. An experimental study was carried out using the SSE to emulate both the natural environment and living environments, and the relationship among the different emulation parameters was investigated. Furthermore, the experimental results indicated that accelerated testing using SSE may be effective for improving the design efficiency of renewable-energy powered systems.
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Yang, Siheng, Jianchen Wang, Zhichao Wang, Meng Han, Yuzhen Lin, and Yexin Wang. "Experimental Investigation of Dual-Swirl Spray Flame in a Fuel Staged Optical Model Combustor With Laser Diagnostics." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-58706.

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Abstract Lean premixed prevaporized combustors often feature staged combustion with a premixed main flame anchored by the nonpremixed pilot flame to obtain a wide operating range. Interaction between pilot flame and main flame is complex. The present article investigates the flame topologies and flame-fuel interactions in separated stratified swirl flames under various operating conditions (fuel to air ratio FAR and fuel stage ratio α) and injector designs (main stage swirl number Sm and fuel injection angle JA). Experiments are carried out in the centrally staged optical model combustor at inlet pressure P3 = 0.49–0.7 MPa and inlet temperature T3 = 539 K. At first, the flame structures obtained from OH-PLIF are investigated and discussed for the baseline injector (Sm = 0.9, JA = −50°). The V-shaped flame is stabilized in the inner shear layer (ISL) with the flame attachment point located at the lip for the pilot flame mode (α = 1). Dual flame is observed in the combustor for the fuel staged combustion (α < 1): the main flame stabilized in the outer shear layer (OSL) and the pilot flame stabilized in the inner shear layer (ISL). For increasing α from 0.15 to 0.25, gaps between the main flame and pilot flame are decreased, indicating a stronger interaction between the two flames. The flame structure for different injector geometries is then investigated. It is found that the higher main stage swirl number induces a larger flame opening angle, decreasing the interaction between two flames. Fuel injected into crossflow (JA = −50°) is found to generated a more separated flame, decreasing the flame interactions. Finally, fuel distribution measured by kerosene-PLIF is analyzed with the correlation to flame structure. Results show that the existence of a good mixing of fuel and fresh air in ISL and OSL provide favorable conditions for chemical reaction with high heat release. The OH distribution is highly correlated to fuel distribution. The fuel zone is located at the inner side of high OH region, indicating the reaction and heat release take place after the mixing of preheating of fuel-air mixture.
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Catherine, Olayemi O., Olasehinde O. Olayemi, and Alowolodu O. Dayo. "Performance Comparison of Machine Learning Algorithms Clinical Diagnoses of the Risk of Knee Osteoarthritis (KOA)." In International Workshop on Social Impact of AI for Africa 2022. AIJR Publisher, 2024. http://dx.doi.org/10.21467/proceedings.157.5.

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Knee Osteoarthritis (KOA) is a deteriorating sickness that affects human knee joints leading to impaired quality of life with no curative treatments. Early detection of Knee Osteoarthritis will ensure its proper management, prevent cartilage damage and slow down its progression. Machine Learning (ML) techniques have been used to learn and discover useful patterns from patient datasets to diagnose diseases and infections. This study models five diagnostic models using a dataset of patient information from the Federal Medical Centre, Ido-Ekiti, located in the South-Western part of Nigerian. The result from the study showed a diagnostic accuracy that ranges from 82.79% to 87.93% among the five diagnoses models. The evaluation of the models with the OAI dataset showed an improved diagnostic accuracy compared to existing similar research in the literature.
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Reports on the topic "Model OSI/ISO"

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Barahona, Ricardo, and María Rodríguez-Moreno. Estimating the OIS term premium with analyst expectation surveys. Banco de España, 2024. http://dx.doi.org/10.53479/36253.

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This paper estimates the euro area overnight index swap yield curve, which is considered to be the risk-free yield curve in the euro area, using an affine term structure model. We expand the Adrian, Crump and Moench (2013) procedure with survey data to dissect rates into short-term expectations and term premia. This approach reveals the market expectations of short-term interest rates and monetary policy, and gauges the premium demanded by risk-averse investors in uncertain interest rate environments. As compared to the simpler model, the use of survey information in our estimation yields estimates more aligned with professional expectations data. Our approach enables us to obtain daily forecasts of short-term rates for up to 10 years ahead which are aligned with professional surveys on interest rates. Our estimation of real-time information on short-term rate expectations proves valuable as it complements the survey data, which are typically available at longer intervals.
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Hermansen, Anna, and Cailean Osborne. The Economic and Workforce Impacts of Open Source AI: Insights from Industry, Academia, and Open Source Research Publications. The Linux Foundation, 2025. https://doi.org/10.70828/itvq4899.

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In a literature review commissioned by Meta, LF Research found that open source AI (OSAI) is widely adopted, cost effective, highly performing, and leads to faster and higher-quality development of tools and models. The study included a comprehensive analysis of academic and industry literature as well as empirical data from previous LF Research surveys to determine existing evidence of the economic and workforce impacts of OSAI. The study assessed these impacts in four areas: Adoption rates: a significant majority (89%) of organizations are using some form of open source in their AI stack and almost two-thirds (63%) of companies are using an open model Economic benefits: OSAI is considered a cost-effective choice as compared to proprietary solutions while increasing productivity and accelerating collaborative innovation Workforce impacts: AI has nuanced impacts on the workforce and is poised to be more of a complement for jobs than a tool to replace jobs Sector-specific insights: AI has unique impacts on healthcare, agriculture, construction, manufacturing, and energy
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Desk, Front. Social Return on Investment Analysis of Support from the Commonwealth of Learning for the Open and Innovative Schooling Model. Commonwealth of Learning (COL), 2021. http://dx.doi.org/10.56059/11599/3934.

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As the Commonwealth of Learning (COL) was in the last year of its 2015–2021 strategic plan, COL sought to evaluate the impact of its interventions in open and innovative schooling (OIS) in the period 2018–2021 through an external review. An online quantitative study was carried out in Belize, Malawi, Mozambique, Trinidad and Tobago, and Zambia, followed by a contextual cost–benefit analysis, and a social return on investment (SROI) analysis. Overall, COL’s contribution to the OIS programme in terms of Phase 1 and Phase 2 activities is perceived to have significantly contributed to the success noted so far in the five countries under study. The SROI ratios for all countries were positive, indicating that the social returns on this intervention are desirable, justifying a case for continued support of such OIS initiatives.
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Saltus, Christina, S. McKay, and Todd Swannack. Geospatial suitability indices (GSI) toolbox : user's guide. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/45128.

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Habitat suitability models have been widely adopted in ecosystem management and restoration to assess environmental impacts and benefits according to the quantity and quality of a given habitat. Many spatially distributed ecological processes require application of suitability models within a geographic information system (GIS). This technical report presents a geospatial toolbox for assessing habitat suitability. The geospatial suitability indices (GSI) toolbox was developed in ArcGIS Pro 2.7 using the Python 3.7 programming language and is available for use on the local desktop in the Windows 10 environment. Two main tools comprise the GSI toolbox. First, the suitability index (SIC) calculator tool uses thematic or continuous geospatial raster layers to calculate parameter suitability indices using user-specified habitat relationships. Second, the overall suitability index calculator (OSIC) combines multiple parameter suitability indices into one overarching index using one or more options, including arithmetic mean, weighted arithmetic mean, geometric mean, and minimum limiting factor. The result is a raster layer representing habitat suitability values from 0.0–1.0, where zero (0) is unsuitable habitat and one (1) is ideal suitability. This report documents the model purpose and development and provides a user’s guide for the GSI toolbox.
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Martin, Torge. Runoff remapping for ocean model forcing. GEOMAR Helmholtz Centre for Ocean Research Kiel, 2021. http://dx.doi.org/10.3289/sw_2_2021.

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A Pyhton-based toolbox to remap daily runoff fields of the JRA55-do reanalysis (Tsujino et al., 2018, https://doi.org/10.1016/j.ocemod.2018.07.002) onto any ocean model grid. Runoff from the original global JRA grid is collected and redistributed to a given model coastline. A particular feature is the optional treatment of river mouths: runoff from grid nodes, which is of exceptionally large magnitude after the basic remapping, can be radially spread to ocean nodes farther offshore. The scripts were tested successfully for NEMO ocean model configurations of various resolution (global grids ORCA025 and ORC05 as well as regional nests VIKING10, ORION10, VIKING20X and INALT20X) at GEOMAR, Kiel (see Biastoch et al., 2021, https://doi.org/10.5194/os-2021-37 for an application). General instructions are provided for how to process the original JRA runoff files and also for the optional river mouth treatment. The technique is illustrated by examples of the fragmented coast of Greenland and the Amazon river mouth. While the code is versatile, examples are given for an application with the NEMO ocean model.
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Si, Hongjun, Saburoh Midorikawa, and Tadahiro Kishida. Development of NGA-Sub Ground-Motion Model of 5%-Damped Pseudo-Spectral Acceleration Based on Database for Subduction Earthquakes in Japan. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2020. http://dx.doi.org/10.55461/lien3652.

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Presented within is an empirical ground-motion model (GMM) for subduction-zone earthquakesin Japan. The model is based on the extensive and comprehensive subduction database of Japanese earthquakes by the Pacific Engineering Research Center (PEER). It considers RotD50 horizontal components of peak ground acceleration (PGA), peak ground velocity (PGV), and 5%-damped elastic pseudo-absolute acceleration response spectral ordinates (PSA) at the selected periods ranging from 0.01 to 10 sec. The model includes terms and predictor variables considering tectonic setting (i.e., interplate and intraslab), hypocentral depths (D), magnitude scaling, distance attenuation, and site response. The magnitude scaling derived in this study is well constrained by the data observed during the large-magnitude interface events in Japan (i.e., the 2003 Tokachi-Oki and 2011 Tohoku earthquakes) for different periods. The developed ground-motion prediction equation (GMPE) covers subduction-zone earthquakes that have occurred in Japan for magnitudes ranging from 5.5 to as large as 9.1, with distances less than 300 km from the source.
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Sathyanadh, Anusha, and Helene Muri. Open access dataset of ESM simulations of combined land- and ocean-based NETs. OceanNets, 2024. http://dx.doi.org/10.3289/oceannets_d4.7.

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In this deliverable, we perform Earth system model (ESM) simulations to assess the role of land-based and ocean-based negative emission technologies (NETs) for achieving the temperature target set by the 2015 Paris Agreement. The dataset provided from this work package will be used for investigating carbon sequestration potential, side-effects and potential constraints of combining oceanic and terrestrial NETs with the help of an earth system model, NorESM2. Two long NorESM2 coupled simulations with SSP5-3.4-OS scenario are conducted to check the CDR potential of terrestrial CDR, and terrestrial and marine CDR together by combining land-based Bioenergy for Carbon Capture and Storage (BECCS) and Ocean Alkalinization Enhancement (OAE) scenarios together. For the terrestrial BECCS simulation, the default land use distribution in the original CMIP6 SSP5-3.4 land use dataset is modified to accommodate more bioenergy crop in the future while keeping the total crop area of 2015 for food throughout the century and combining it with a bio-CCS system. For the second simulation we combined the above terrestrial BECCS simulation with 2030-high OAE scenario from Deliverable 4.6. A higher amount of carbon captured by making use of the carbon sequestration potential of land and ocean together. (OceanNets Deliverable ; D4.7)
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Plourde, A. P., and J. F. Cassidy. Mapping tectonic stress at subduction zones with earthquake focal mechanisms: application to Cascadia, Japan, Nankai, Mexico, and northern Chile. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330943.

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Earthquake focal mechanisms have contributed substantially to our understanding of modern tectonic stress regimes, perhaps more than any other data source. Studies generally group focal mechanisms by epicentral location to examine variations in stress across a region. However, stress variations with depth have rarely been considered, either due to data limitations or because they were believed to be negligible. This study presents 3D grids of tectonic stress tensors using existing focal mechanism catalogs from several subduction zones, including Cascadia, Japan, Nankai, Mexico, and northern Chile. We bin data into 50 x 50 x 10 km cells (north, east, vertical), with 50% overlap in all three directions. This resulted in 181380 stress inversions, with 90% of these in Japan (including Nankai). To the best of our knowledge, this is the first examination of stress changes with depth in several of these regions. The resulting maps and cross-sections of stress can help distinguish locked and creeping segments of the plate interface. Similarly, by dividing the focal mechanism catalog in northern Japan into those before and those >6 months after the 2011 Mw 9.1 Tohoku-Oki earthquake, we are able to produce detailed 3D maps of stress rotation, which is close to 90° near the areas of highest slip. These results could inform geodynamic rupture models of future megathrust earthquakes in order to more accurately estimate slip, shaking, and seismic hazard. Southern Cascadia and Nankai appear to have sharp stress discontinuities at ~20 km depth, and northern Cascadia may have a similar discontinuity at ~30 km depth. These stress boundaries may relate to rheological discontinuities in the forearc, and may help us unravel how forearc composition influences subduction zone behaviour and seismic hazard.
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PERFORMANCE OPTIMIZATION OF A STEEL-UHPC COMPOSITE ORTHOTROPIC BRIDGE WITH INTELLIGENT ALGORITHM. The Hong Kong Institute of Steel Construction, 2022. http://dx.doi.org/10.18057/icass2020.p.160.

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To address the problems of pavement damage and fatigue cracking of orthotropic steel deck (OSD) in bridges, an innovative composite bridge deck composed of OSD with open ribs and ultra-high performance concrete (UHPC) layer was proposed. Firstly, the stress responses of fatigue-prone details in the composite bridge deck were investigated by refined two-scale finite element analysis. The results show that the rib-to-deck joint can achieve an infinite fatigue life, while the floorbeam detail of rib-tofloorbeam joint indicates finite fatigue life. Then, response surface models of stress ranges of fatigue details and structure weight were derived via both the central composite design and response surface method. Finally, to improve the fatigue performance for achieving an infinite fatigue life under relatively low structure weight, the multi-objective optimization was executed by an Improved Non-dominated Sorting Genetic Algorithm (NSGA-II). The obtained Pareto front shows that there is a strong competition between the stress range of fatigue-prone detail and structure weight.
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