Browsing Fakultet for ingeniørvitenskap (uspesifisert) by Title
Now showing items 31-50 of 126
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Deformations in Concrete Cantilever Bridges: Observations and Theoretical Modelling
(Dr. ingeniøravhandling, 0809-103X; 2002:23, Doctoral thesis, 2002)The thesis deals with the deformation problem of segmental, cast-in-place concrete cantilever bridges. This type of bridge has shown some propensity to develop larger deflections than those were predicted in the design ... -
Deposit Formation on Cylinder Liner Surface in medium-speed Engines
(Dr. ingeniøravhandling, 0809-103X; 2003:87, Doctoral thesis, 2003)The presence of deposits in the honing grooves in diesel engine cylinder liners can cause a severe increase in the consumption of lubricating oil. These deposits may appear amber in which case they may be referred to as ... -
Derivative free optimal thrust allocation in ship dynamic positioning based on direct search algorithms
(Peer reviewed; Journal article, 2020)ABSTRACT: In dynamic positioning systems, nonlinear cost functions, as well as nonlinear equality and inequality constraints within optimal thrust allocation procedures cannot be handled directly by means of the solvers ... -
Design, Operation and Control Modelling of SOFC/GT Hybrid Systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:28, Doctoral thesis, 2006)This thesis focuses on modelling-based design, operation and control of solid oxide fuel cell (SOFC) and gas turbine (GT) hybrid systems. Fuel cells are a promising approach to high-efficiency power generation, as they ... -
Dynamic characteristics and leakage performance of liquid annular seals in centrifugal pumps
(Dr. ingeniøravhandling, 0809-103X; 2000:1, Doctoral thesis, 2000)In centrifugal pumps the leakage and dynamic characteristics of annular seals are important factors for pump performance. Both seal leakage and dynamics are greatly affected by the relationship between fluid flow and wall ... -
Dynamics of the Seasonal Snowcover in the Arctic
(Dr.ingeniøravhandling, 0809-103X; 2002:29, Doctoral thesis, 2002)Arctic snow cover is important to life on Earth from the microscale soil microarthropod population, to reindeer at the local scale and even the global scale through its impact on the global climate. There ... -
Eco-efficiency and Performance Strategies in Construction and Demolition Waste Recycling Systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:22, Doctoral thesis, 2005)This thesis studies the Danish and Norwegian recycling systems for construction and demolition (C&D) waste. The architectural, Engineering and Construction (AEC) industry is a major contributor to societies waste production; ... -
Eco-efficiency of waste management: A case study of the Norwegian deposit and recycling system for PET bottles
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:202, Doctoral thesis, 2005)The Norwegian system for depositing and recycling of PET bottles (Resirk/PET system)started in May 2000, and is based on Norsk Resirk's mission of improving cost- and environmental efficiency of this system. Has this been ... -
Effects of anthropogenic activities on snow distribution, and melt in an urban environment
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:67, Doctoral thesis, 2004)In many parts of the world snow melt runoff influence discharge from combined sewer overflows (CSO) and flooding in urban drainage systems. Despite this, urban snow hydrology is a field that has received little attention ... -
Ekofisk Chalk: Core Measurements, Stochastic Reconstruction, Network Modeling and Simulation
(Dr. ingeniøravhandling, 0809-103X; 2002:24, Doctoral thesis, 2002)This dissertation deals with (1) experimental measurements on petrophysical reservoir engineering and morphological properties of Ekofisk chalk, (2) numerical simulation of core flood experiments to analyze and improve ... -
Enhanced Oil Recovery from Oil-Wet Carbonate Rock by Spontaneous Imbibition of Aqueous Surfactant Solutions.
(Dr.ingeniøravhandling, 0809-103X; 2001:81, Doctoral thesis, 2001) -
Enterprise Modelling supported by Manufacturing Systems Theory
(Dr. ingeniøravhandling, 0809-103X; 2002:44, Doctoral thesis, 2002)There exist today a large number of enterprise models or enterprise modelling approaches. In a study of standards and project developed models there are two approaches: CIMOSA “The Open Systems Architecture for CIM” and ... -
Enterprise Reengineering – A Strategic Framework and Methodology
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:153, Doctoral thesis, 2005)Manufacturing companies find themselves, whether they like it or not, in a more global and changing reality. Fiercer competition, dynamic markets, new consumer habits, stronger environmental regulations, and new technological ... -
Equilibrium and Non-Equilibrium Thermodynamics of Natural Gas Processing
(Dr. ingeniøravhandling, 0809-103X; 2002:146, Doctoral thesis, 2002)The objective of this work has been to study equilibrium and non equilibrium situations during high pressure gas processing operations with emphasis on utilization of the high reservoir pressure. The well stream pressures ... -
Essays on economic appraisal of transport infrastructure: Examples from aviation and fixed fjord links
(Dr. ingeniøravhandling, 0809-103X; 2001:5, Doctoral thesis, 2001)This dissertation focuses on economic appraisal of transport infrastructure investments. The main objective is to expand the knowledge about how improvements in transport infrastructure can influence economic efficiency ... -
Experimental and Theoretical Studies of a Low Nox Swirl Burner
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:78, Doctoral thesis, 2004)Nitrogen oxides emitted to the atmosphere can cause health problems for humans and environmental problems such as acid rain and global warming. The main part of the world energy consumption involves combustion; hence ... -
Experimental investigation of small-scale gasification ofwoody biomass
(Dr. ingeniøravhandling, 0809-103X; 2002:40, Doctoral thesis, 2002)A small-scale stratified downdraft gasifier has been built and operated under stable conditions using wood pellets as fuel and air as gasification agent. The problems observed during the preliminary experiments have been ... -
Experimental investigation of wave induced vibrations and their effect on the fatigue loading of ships
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:133, Doctoral thesis, 2007)This thesis represents an attempt to reveal and explain the mysterious excitation sources which cause global wave induced vibrations of ships. The wave induced vibrations of the hull girder are referred to as springing ... -
Faces of a Sadhu. Encounters with Hindu Renouncers in Northern India
(Doctoral thesis, 2002)What is it about India and Varanasi, this holy city on the bank of the Ganga that has made me return, again and again? It is definitely not the freezing cold temperatures during mid-winter, nor is it the dry heat at spring, ...