Viser treff 121-140 av 251

    • Introducing a New Toolbox for Theory of Connection 

      Davidrajuh, Reggie; Chunming, Rong (Peer reviewed; Journal article, 2020)
      These days, graphs and graph theory is being used for modelling, simulation, and performance analysis of many physical systems, as physical systems are becoming more and more connected. However, ca. 75 years ago, Gabriel ...
    • Understanding the IKEA Warehouse Processes and Modeling using Modular Petri Nets 

      Behzad, Behfar; Farzad, Maryam; Davidrajuh, Reggie (Peer reviewed; Journal article, 2020)
      Nowadays, large warehouses handle a huge number of products. Handling the enormity and different types of (range) products also demand complex warehouse processes. In this paper, the IKEA warehouse in Stavanger, Norway, ...
    • Estimating Salmon Price Rise Due to the Increased Presence of Lice Caused by Global Warming: A Petri Net Based Approach 

      Valberg, Vegard; Davidrajuh, Reggie (Peer reviewed; Journal article, 2021)
      This paper describes a conceptual model to estimate how global warming will lead to increased salmon aquaculture costs due to the increased presence of salmon lice (which are known to favour warmer climates). Usually, ...
    • Towards Modeling Road Tunnels: A Petri Nets based Approach 

      Davidrajuh, Reggie; Joseph, Joel Fabiean (Peer reviewed; Journal article, 2022)
      This paper aims to develop a mathematical model using Petri nets to simulate the traffic flow inside the road tunnel. First, a new modular Petri net theory is used; the modeling approach shown in this paper for modeling a ...
    • The Isolation Concept in the 5G Network Slicing 

      Gonzalez, Andres J.; Ordonez-Lucena, Jose; Helvik, Bjarne Emil; Nencioni, Gianfranco; Xie, Min; Lopez, Diego R.; Grønsund, Pål R. (Chapter, 2020)
      The fifth generation (5G) of cellular networks shall host a number of tenants and provide services tailored to meet a wide range of requirements in terms of performance, dependability and security. Network slicing will be ...
    • Strict Minimal Siphon-Based Colored Petri Net Supervisor Synthesis for Automated Manufacturing Systems With Unreliable Resources 

      Al-Ahmari, Abdulrahman; Kaid, Husam; Li, Zhiwu; Davidrajuh, Reggie (Peer reviewed; Journal article, 2020)
      Various deadlock control policies for automated manufacturing systems with reliable and shared resources have been developed, based on Petri nets. In practical applications, a resource may be unreliable. Thus, the deadlock ...
    • Understanding the Importance of Efficient Visitor Flow within Tokyo Skytree 

      Haraldsen, Eirik Solland; Østrådt, Karl Meisland; Davidrajuh, Reggie (Peer reviewed; Journal article, 2021)
      Tokyo Skytree is the tallest freestanding tower in the world. The tower is a popular tourist attraction with two observational decks at an altitude of 350 and 450 meters. This paper aims to understand the importance of the ...
    • Experimental Evaluation of Handover Strategies in 5G-MEC Scenario by using AdvantEDGE 

      Garroppo, Rosario G.; Volpi, Marco; Nencioni, Gianfranco; Wadatkar, Prachi Vinod (Chapter, 2022)
      The 5G-MEC architecture increases the heterogene-ity and dynamicity of the available resources, presenting unique and competing challenges to researchers, network designers, and application developers. Recent studies ...
    • Fault-Tolerant Control Based on Virtual Actuator and Sensor for Discrete-Time Descriptor Systems 

      Wang, Ye; Rotondo, Damiano; Puig, Vicenç; Cembrano, Gabriela (Peer reviewed; Journal article, 2020)
      This article proposes a fault-tolerant control (FTC) strategy based on virtual actuator and sensor for discrete-time descriptor systems subject to actuator and sensor faults. The fault-tolerant closed-loop system, which ...
    • Intelligent Colored Token Petri Nets for Modeling, Control, and Validation of Dynamic Changes in Reconfigurable Manufacturing Systems 

      Kaid, Husam; Al-Ahmari, Abdulrahman; Li, Zhiwu; Davidrajuh, Reggie (Peer reviewed; Journal article, 2020)
      The invention of reconfigurable manufacturing systems (RMSs) has created a challenging problem: how to quickly and effectively modify an RMS to address dynamic changes in a manufacturing system, such as processing failures ...
    • A New Modular Petri Net for Modeling Large Discrete-Event Systems: A Proposal Based on the Literature Study 

      Davidrajuh, Reggie (Peer reviewed; Journal article, 2019)
      Petri net is a highly useful tool for modeling of discrete-event systems. However, Petri net models of real-life systems are enormous, and their state-spaces are usually of infinite size. Thus, performing analysis on the ...
    • Scanning the Medical Terrain : an aid to quicker adoption of guidelines 

      Jaatun, Ellen A. Andreassen; Hepburn, Leigh-Anne; Jaatun, Martin Gilje (Peer reviewed; Journal article, 2019)
      Guidelines exist in order to ensure efficient, effective and consistent provision of healthcare service. Unfortunately, existing guidelines are often not adopted in a timely manner, even to the point of being outdated at ...
    • Open Humans: A platform for participant-centered research and personal data exploration 

      Tzovaras, Bastian Greshake; Angrist, Misha; Arvai, Kevin; Dulaney, Mairi; Estrada-Galiñanes, Vero; Gunderson, Beau; Head, Tim; Lewis, Dana; Nov, Oded; Shaer, Orit; Tzovara, Athina; Bobe, Jason; Ball, Mad Price (Peer reviewed; Journal article, 2019)
      Background Many aspects of our lives are now digitized and connected to the internet. As a result, individuals are now creating and collecting more personal data than ever before. This offers an unprecedented chance for ...
    • The effect of integral control in oscillatory and chaotic reaction kinetic networks 

      Thorsen, Kristian; Drengstig, Tormod; Ruoff, Peter (Peer reviewed; Journal article, 2019)
      Integral control is ubiquitously used in industrial processes to keep variables robustly regulated at a given setpoint. Integral control is also present in many biological systems where it, implemented through reaction ...
    • Network-Aware Availability Modeling of an End-to-End NFV-Enabled Service 

      Tola, Besmir; Nencioni, Gianfranco; Helvik, Bjarne Emil (Peer reviewed; Journal article, 2019)
      Network Function Virtualization (NFV) represents a key shift in nowadays network service provisioning by entailing higher flexibility, elasticity, and programmability of network services. Dependability is one of the main ...
    • State transition modeling of complex monitored health data 

      Schulz, Jörn; Kvaløy, Jan Terje; Engan, Kjersti; Eftestøl, Trygve Christian; Jatosh, Samwel; Hussein, Kidanto; Ersdal, Hege Langli (Peer reviewed; Journal article, 2019)
      This article considers the analysis of complex monitored health data, where often one or several signals are reflecting the current health status that can be represented by a finite number of states, in addition to a set ...
    • Advancing Deep Learning to Improve Upstream Petroleum Monitoring 

      Heghedus, Cristina Viorica; Shchipanov, Anton; Chunming, Rong (Peer reviewed; Journal article, 2019)
      Data analytics is rapidly growing field in both academia and industry dealing with processing and interpreting large and complex data sets. It has got already many successful applications via advancing machine (ML) and ...
    • Modeling and Evaluating NFV-Enabled Network Services under Different Availability Modes 

      Tola, Besmir; Nencioni, Gianfranco; Helvik, Bjarne Emil; Jiang, Yuming (Chapter, 2019)
      Network and Telecom operators are continuously embracing the adoption of Network Function Virtualization (NFV) as a means to provide more agile, flexible and cost-efficient services. Many telecommunication services need ...
    • Gain-scheduled observer-based consensus for linear parameter varying multi-agent systems 

      Rotondo, Damiano; Ponsart, Jean-Christophe; Theilliol, Didier (Peer reviewed; Journal article, 2022)
      This paper investigates the gain-scheduled observer-based consensus of linear parameter varying (LPV) multi-agent systems (MASs). The main contribution of the paper is that, differently from LPV observer-based consensus ...
    • Cardiac Structure and Function in Epilepsy Patients with Drug-Resistant Convulsive Seizures 

      Gonzalez, Alba; Haugaa, Kristina Ingrid Helena Hermann; Brekke, Pål Haugar; Hopp, Einar; Ørn, Stein; Alvestad, Silje; Taubøll, Erik; Aurlien, Dag (Peer reviewed; Journal article, 2022)
      High frequency of convulsive seizures and long-lasting epilepsy are associated with an increased risk of sudden unexpected death in epilepsy (SUDEP). Structural changes in the myocardium have been described in SUDEP victims. ...