Browsing Fakultet for ingeniørvitenskap (IV) by Title

Now showing items 21574-21593 of 22971

    • Ultimate compressive strain in lightweight aggregate concrete beams 

      Zivkovic, Jelena; Øverli, Jan Arve (Chapter, 2018)
      The major concern when using lightweight aggregate concrete (LWAC) in structural applications compared to normal weight concrete (NWC) is the more brittle post-peak behaviour and reduced ultimate strain, especially in ...

    • Ultimate Limit State Analysis of Havfarm 

      Holen, Vegard (Master thesis, 2017)
      Marin fish farming is in rapid development. Dimensions are expected to increase and locations are being moved to areas exposed to more energetic waves and stronger current. With increasing dimensions and more challenging ...

    • Ultimate strength analysis of stiffened steel and aluminium panels using semi-analytical methods 

      Byklum, Eirik (Dr. ingeniøravhandling, 0809-103X; 2002:131, Doctoral thesis, 2002)
      Buckling and postbuckling of plates and stiffened panels are considered. Computational models for direct calculation of the response are developed using large deflection plate theory and energy principles. Deflections are ...

    • Ultimate Strength and Capacity Assessment of Ice Class Vessel Operating in Ice 

      Mork, Håkon (Master thesis, 2016)
      In an ongoing project between DNV GL and a customer, the ultimate strength and damage on a ship exposed to ice loading are to be assessed. The vessel has the DNV GL class notation Ice(1A*), but is now considered for operation ...

    • Ultimate Strength and Post-Ultimate Behavior of Hybrid Platform Deck Girders 

      Zhou, Chunqi (Master thesis, 2014)
      As for the increasing demands of offshore oil and gas, the new platforms are designed in more and more serious conditions. The safety check and modification of the complex structure has become a hot subject. Normally, the ...

    • Ultimate Strength and Reliability based Design of Ship Hulls with Emphasis on Combined Global and Local Loads 

      Amlashi, Hadi Khabbazkar (Doktoravhandlinger ved NTNU, 1503-8181; 2009:27, Doctoral thesis, 2009)
      During the last few decades, the emphasis in structural design of ships has moved from the allowable stress design to the ultimate limit state design. The ultimate limit state represents the collapse of the structure due ...

    • Ultimate strength of aluminium panels, considering HAZ effects 

      Chen, Qiaofeng (Doktoravhandlinger ved NTNU, 1503-8181; 2011:326, Doctoral thesis, 2011)
      Aluminium stiffened panels have been increasingly used in marine, offshore and transportation industries, especially where high strength/weight ratio structures are highly required. However, the ultimate strength of aluminium ...

    • Ultimate- and Fatigue Limit State Analysis of a Rigid Offshore Aquaculture Structure 

      Bore, Pål Takle; Fossan, Pål Alexander (Master thesis, 2015)
      Marine fish farming is in rapid development, dimensions are expected to increase, and locations are being moved to areas exposed to more energetic waves and stronger currents. New and extreme loading scenarios need to be ...

    • Ultra høyfast betong med fiberarmering og testing av Da Vinci brumodell 

      Landbø, Linda (Master thesis, 2014)
      I 2010 bygget en gruppe studenter ved NTNU en bru i ultrahøyfast fiberbetong som en del av et studieprosjekt. Brua er slank og spenner over 3 meter. Den er fiberarmert med 2 vol-% stålfiber på 3.5cm. I 2010 ble det utført ...

    • Ultra Long Extended Reach Drilling 

      Kleiven, Håkon Martin (Master thesis, 2010)
      With the notion of evolving current Extended Reach Drilling, this master thesis examines if drilling 20–40km is feasible. Several reservoirs offshore in the area outside of Lofoten in the northern part of Norway are reachable ...

    • Ultra-Cheap Renewable Energy as an Enabling Technology for Deep Industrial Decarbonization via Capture and Utilization of Process CO2 Emissions 

      Bin Afif, Mohammed; Bin Afif, Abdulla Shaikh Abdul Qader; Apostorleris, Harry; Gandhi, K; Dadlani, Anup; Ghaferi, AA; Torgersen, Jan; Chiesa, Matteo (Peer reviewed; Journal article, 2022)
      Rapidly declining costs of renewable energy technologies have made solar and wind the cheapest sources of energy in many parts of the world. This has been seen primarily as enabling the rapid decarbonization of the electricity ...

    • Ultra-durable Icephobic Coating by Molecular pulley 

      Zhuo, Yizhi; Li, Tong; Wang, Feng; Håkonsen, Verner; Xiao, Senbo; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2019)
      Slide-ring crosslinked polydimethylsiloxane (PDMS) is designed and prepared for anti-icing/deicing application. Compared with the covalent crosslinks, the slidable crosslinks enhance the mobility of polymer networks and ...

    • Ultra-high energy density integrated polymer dielectric capacitors 

      Ren, Xintong; Meng, Nan; Ventura, Leonardo; Goutianos, Stergios; Barbieri, Ettore; Zhang, Han; Yan, Haixue; Reece, Michael John; Bilotti, Emiliano (Peer reviewed; Journal article, 2022)
      Flexible dielectric polymers with high energy storage density are needed for film capacitor applications including hybrid electric vehicles and medical apparatuses. Poly(vinylidene fluoride) (PVDF) is regarded as a promising ...

    • Ultra-high surface area and mesoporous N-doped carbon derived from sheep bones with high electrocatalytic performance toward the oxygen reduction reaction 

      Li, Shunxi; Xu, Ruoyu; Wang, Hui; Brett, Dan J L; Ji, Shan; Pollet, Bruno; Wang, Rongfang (Journal article; Peer reviewed, 2017)
      A nitrogen (N)-doped mesoporous carbon material exhibiting ultra-high surface area was successfully synthesized from sheep bones via a facile and low-cost method. The obtained carbon material had an ultra-high specific ...

    • An Ultra-Low Temperature Transcritical R744 Refrigeration System for Future Detectors at CERN LHC 

      Barroca, Pierre Andre Calhau; Hafner, Armin; Verlaat, B; Petagna, P.; Hulek, Wojciech; Zwalinski, L; Hanf, Pierre; Battistin, Michele; Davoine, Loic; Teixeira, Daniella (Peer reviewed; Journal article, 2021)
      The cooling systems of the future tracking detectors of the ATLAS and CMS experiments at the Large Hadron Collider (LHC) at CERN will be entirely based on CO2 refrigeration technology. The system is a booster refrigeration ...

    • Ultra-Low-Temperature Refrigeration Systems: A Review and Performance Comparison of Refrigerants and Configurations 

      Saeed, Muhammad Zahid; Contiero, Luca; Blust, Stefanie; Allouche, Yosr; Hafner, Armin; Eikevik, Trygve Magne (Peer reviewed; Journal article, 2023)
      During the last decade, many industrial and medical applications have shown a requirement for low-temperature-cooling usage (from −40 to −80 °C), which cannot be efficiently obtained via the conventional refrigeration ...

    • Ultra-robust icephobic coatings with high toughness, strong substrate adhesion and self-healing capability 

      Zhuo, Yizhi; Håkonsen, Verner; Liu, Siqi; Li, Tong; Wang, Feng; Luo, Sihai; Xiao, Senbo; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2022)
      Enabling surfaces with passive anti-icing properties is an emerging, facile, economical, and energy-saving strategy to mitigate the harm caused by ice accretion. However, the combination of icephobicity and robustness still ...

    • Ultrafast self-healing and highly transparent coating with mechanically durable icephobicity 

      Zhuo, Yizhi; Xiao, Senbo; Håkonsen, Verner; Li, Tong; Wang, Feng; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2019)
      Excessive ice accretion on infrastructures can lead to severe damage and dysfunction. In the context of combating the build-up of unwanted icing and at the same time maintaining sunlight permeation, for instance on solar ...

    • Ultrasonic Evaluation of Clay Behind Casing 

      Storås, Fredrik (Master thesis, 2017)
      There's an increasing number of oil fields on the Norwegian continental shelf that will go out of production in the coming years, resulting in a big demand for permanent plugging and abandonment (P&A) services. There are ...

    • Ultrasonic Evaluation of Well Integrity 

      Hoel, Kristian (Master thesis, 2014)
      This thesis presents the acoustic theory behind current ultrasonic cement evaluation tools. The UltraSonic Imager tool's pulse echo technique and the new Isolation Scanner tool's pitch-catch leaky lamb wave measuring ...