Viser treff 21-40 av 120

    • A Tiered Control Plane Model for Service Function Chaining Isolation 

      Gunleifsen, Håkon; Gkioulos, Vasileios; Kemmerich, Thomas (Journal article; Peer reviewed, 2018)
      This article presents an architecture for encryption automation in interconnected Network Function Virtualization (NFV) domains. Current NFV implementations are designed for deployment within trusted domains, where overlay ...
    • Fully automatic real-time ejection fraction and MAPSE measurements in 2D echocardiography using deep neural networks 

      Smistad, Erik; Østvik, Andreas; Salte, Ivar Mjåland; Leclerc, Sarah; Bernard, Olivier; Løvstakken, Lasse (Journal article; Peer reviewed, 2018)
      Cardiac ultrasound measurements such as left ventricular volume, ejection fraction (EF) and mitral annular plane systolic excursion (MAPSE) are time consuming and highly observer dependent. In this work, we investigate if ...
    • A Smart MCDM Framework to Evaluate the Impact of Air Pollution on City Sustainability: A Case Study from China 

      Wang, Qingyong; Dai, Hong-Ning; Wang, Hao (Journal article; Peer reviewed, 2017)
      Air pollution has become one of the key environmental concerns in the urban sustainable development. It is important to evaluate the impact of air pollution on socioeconomic development since it is the prerequisite to ...
    • On Capacity and Delay of Multichannel Wireless Networks With Infrastructure Support 

      Dai, Hong-Ning; Wong, Raymond Chi-Wing; Wang, Hao (Journal article; Peer reviewed, 2017)
      In this paper, we propose a novel multi-channel network with infrastructure support, called an MC-IS network,which has not been studied in the literature. To the best of our knowledge, we are the first to study such an ...
    • Achieving dependability in software-defined networking - a perspective 

      Helvik, Bjarne Emil; Heegaard, Poul Einar; Mendiratta, Veena (Chapter, 2015)
      In this paper we take a closer look at the operationof software defined networking (SDN) in intra-domain networks.The focus is on the dependability issues related to interworking ofSDN controllers, network OS (NOS), and ...
    • On the performance and energy efficiency of the PGAS programming model on multicore architectures 

      Lagraviere, Jeremie Alexandre Emilien; Langguth, Johannes; Sourouri, Mohammed; Ha, Hoai Phuong; Cai, Xing (Chapter, 2016)
      Using large-scale multicore systems to get the maximum performance and energy efficiency with manageable programmability is a major challenge. The partitioned global address space (PGAS) programming model enhances ...
    • Implementing Hydropower Scheduling in a European Expansion Planning Model 

      Brovold, Sondre; Skar, Christian; Fosso, Olav B (Journal article; Peer reviewed, 2014)
      A method for implementing an enhanced hydropower planning formulation in a long-term expansion planning model is proposed. The methodological framework involves assigning hydropower generation a marginal cost through water ...
    • Peaking Capacity in Restructured Power Systems 

      Doorman, Gerard (Dr. ingeniøravhandling, 0809-103X; 2000:100, Doctoral thesis, 2000)
      The theme of this thesis is the supply of capacity during peak demand in restructured power systems. There are a number of reasons why there is uncertainty about whether an enegyonly electricity market (where generators ...
    • Quality of service differentiation, teletraffic analysis and network layer packet redundancy in optical packet switched networks 

      Øverby, Harald (Doktoravhandlinger ved NTNU, 1503-8181; 2005:122, Doctoral thesis, 2005)
      Optical Packet Switching (OPS) has emerged as a promising candidate for the next-generation Wavelength Division Multiplexed (WDM) based alloptical network. By enabling packet switching in the optical domain, OPS networks ...
    • Electrical Power Supply to Offshore Oil Installations by High Voltage Direct Current Transmission 

      Myhre, Jørgen Chr. (Dr. ingeniøravhandling, 0809-103X; 2001:24, Doctoral thesis, 2001)
      This study was initiated to investigate if it could be feasible to supply offshore oil installations in the North Sea with electrical power from land. A prestudy of alternative converter topologies indicated that the most ...
    • Signal analysis of out-of-hospital cardiac arrest electrocardiograms for decision support during cardiopulmonary resuscitation 

      Eftestøl, Trygve C. (Dr. ingeniøravhandling, 0809-103X; 2000:66, Doctoral thesis, 2000)
      This thesis focuses on signal analysis of electrocardiograms (ECG) from out-of-hospital cardiac arrested patients. The application of such methods may eventually contribute in guiding therapy towards improved survival rates ...
    • Nonlinear Topics in the Bayesian Approach to Inverse Problems with Applications to Seismic Inversion 

      Kolbjørnsen, Odd (Dr. ingeniøravhandling, 0809-103X; 2002:55, Doctoral thesis, 2002)
      Paper I considers piecewise affine inverse problems. This is a large group of nonlinear inverse problems. Problems that obey certain variational structures are of this type. In inverse problems it is frequently such that ...
    • Interactive Process Models 

      Jørgensen, Håvard D. (Doktoravhandlinger ved NTNU, 1503-8181; 2004:2, Doctoral thesis, 2004)
      Contemporary business process systems are built to automate routine procedures. Automation demands well-understood domains, repetitive processes, clear organisational roles, an established terminology, and predefined plans. ...
    • Incremental Evolutionary Methods for Automatic Programming of Robot Controllers 

      Petrovic, Pavel (Doktoravhandlinger ved NTNU, 1503-8181; 2007:228, Doctoral thesis, 2007)
      The aim of the main work in the thesis is to investigate Incremental Evolution methods for designing a suitable behavior arbitration mechanism for behavior-based (BB) robot controllers for autonomous mobile robots performing ...
    • Acceleration Feedback in Dynamic Positioning 

      Lindegaard, Karl-Petter (Dr. ingeniøravhandling, 0809-103X; 2003:74, Doctoral thesis, 2003)
      This dissertation contains new results on the design of dynamic positioning (DP) systems for marine surface vessels. A positioned ship is continuously exposed to environmental disturbances, and the objective of the DP ...
    • Rate-distortion optimal vector selection in frame based compression 

      Ryen, Tom (Doktoravhandlinger ved NTNU, 1503-8181; 2005:107, Doctoral thesis, 2005)
      In signal compression we distinguish between lossless and lossy compression. In lossless compression, the encoded signal is more bit efficient than the original signal and is exactly the same as the original one when ...
    • Optimal Bit and Power Constrained Filter Banks 

      Hjørungnes, Are (Dr. ingeniøravhandling, 0809-103X; 2000:7, Doctoral thesis, 2000)
      In this dissertation, two filter banks optimization problems are studied. The first problem is the optimization of filter banks used in a subband coder under a bit constraint. In the second problem, a multiple input multiple ...
    • Quantum cryptography and quantum cryptanalysis 

      Makarov, Vadim (Doktoravhandlinger ved NTNU, 1503-8181; 2007:67, Doctoral thesis, 2007)
      This doctoral thesis summarizes research in quantum cryptography done at the Department of Electronics and Telecommunications at the Norwegian University of Science and Technology (NTNU) from 1998 through 2007. The opening ...
    • Stochastic Modelling and Simulation Based Inference of Fish Population Dynamics and Spatial Variation in Disease Risk 

      Follestad, Turid (Dr. ingeniøravhandling, 0809-103X; 2003:22, Doctoral thesis, 2003)
      We present a non-Gaussian and non-linear state-space model for the population dynamics of cod along the Norwegian Skagerak coast, embedded in the framework of a Bayesian hierarchical model. The model takes into account ...
    • Subgroup membership problems and public key cryptosystems 

      Gjøsteen, Kristian (Doktoravhandlinger ved NTNU, 1503-8181; 2004:69, Doctoral thesis, 2004)
      Public key encryption was first proposed by Diffie and Hellman [16], and widely popularised with the RSA cryptosystem [37]. Over the years, the security goals of public key encryption have been studied [17, 22], as have ...