Nye registreringer

  • Crude oil migration in sea-ice: Laboratory studies of constraints on oil mobilization and seasonal evolution 

    Oggier, Marc; Eicken, Hajo; Wilkinson, Jeremy; Petrich, Chris; O'Sadnick, Megan (Journal article; Peer reviewed, 2019)
    Rising Arctic maritime activities and hydrocarbon development increase the risk of an oil spill in and under Arctic sea-ice. Oil spilled under growing sea ice would be encapsulated within the ice cover. During spring and ...
  • 3D graphene aerogel framework enwrapped LiFePO4 submicron-rods with improved lithium storage performance 

    Tian, Xiaohui; Chen, Zhonghua; Zhu, Yanbin; Huang, Xiao; Wu, Guan; Zhou, Yingke (Journal article; Peer reviewed, 2019)
    The three-dimensional (3D) graphene aerogel (GA)-wrapped LiFePO4 submicron-rod composite (LFP@GA) has been prepared successfully through a solvothermal method followed with rapid freezedrying. Monodispersed LiFePO4 ...
  • Axially Loaded RC Walls with Cutout Openings Strengthened with FRCM Composites 

    Sabau, Cristian; Popescu, Cosmin; Sas, Gabriel; Blanksvärd, Thomas; Täljsten, Björn (Journal article; Peer reviewed, 2018)
    Abstract: Upgrading existing buildings to new functional requirements may require new openings that can weaken the structure, prompting the need for strengthening. In such cases traditional strengthening solutions, such ...
  • 3D reconstruction of existing concrete bridges using optical methods 

    Popescu, Cosmin; Täljsten, Björn; Blanksvärd, Thomas; Elfgren, Lennart (Peer reviewed; Journal article, 2019)
    Routine bridge inspections usually consist of visual observations. These inspections are time-consuming and subjective. There is a need to identify new inspection techniques for infrastructure that reduce traffic disturbance, ...
  • A low-cost coastal buoy for ice and metocean measurements 

    Petrich, Christian; O'Sadnick, Megan Eileen; Kleven, Øystein; Sæther, Irina Vasiljeva (Peer reviewed; Journal article, 2019)
    Regionally, an ice cover in fjords of mainland Norway may form and break up repeatedly during winter. Due to relatively high water temperatures, the freeze-up process is expected to be related to freshwater-induced ...
  • Field measurements on the behavior of brash ice 

    Bonath, Victoria; Zhaka, Vasiola; Sand, Bjørnar (Peer reviewed; Journal article, 2019)
    The behavior and properties of brash ice are important issues for the design of ice-going vessels. Heavy brash ice conditions may cause vessels to be dependent on ice-breaker assistance and time delays in the shipping ...
  • The EU Horizon 2020 project GRACE: integrated oil spill response actions and environmental effects 

    Jørgensen, Kirsten S.; Kreutzer, Anne; Lehtonen, Kari; Kankaanpää, Harri; Rytkönen, Jorma; Wegeberg, Susse; Gustavson, Kim; Fritt-Rasmussen, Janne; Truu, Jaak; Kouts, Tarmo; Lilover, Madis-Jaak; Seiler, Thomas-Benjamin; Hollert, Henner; Johann, Sarah; Marigómez, Ionan; Soto, Manu; Lekube, Xabier; Jenssen, Bjørn Munro; Ciesielski, Tomasz Maciej; Wilms, Lonnie B.; Högström, Rune; Pirneskoski, Mika; Virtanen, Seppo; Forsman, Björn; Petrich, Christian; Dang, Nga Phuong; Wang, Feiyue (Peer reviewed; Journal article, 2019)
    This article introduces the EU Horizon 2020 research project GRACE (Integrated oil spill response actions and environmental effects), which focuses on a holistic approach towards investigating and understanding the hazardous ...
  • Mosideo/cirfa tank experiments on behavior and detection of oil in ice 

    Petrich, Christian; O'Sadnick, Megan Eileen; Brekke, Camilla; Myrnes, Marianne; Maus, Sønke; Salomon, Martina Lan; Woelk, Sofie; Grydeland, Tom; Jenssen, Rolf-Ole Rydeng; Eicken, Hajo; Oggier, Marc; Ferro-Famil, Laurent; Harkati, Lekhmissi; Rebane, Ott; Reimer, Nils (Peer reviewed; Journal article, 2019)
    In the Arctic, presence of sea ice presents a challenge to safe and sustainable operations. To optimize planning and minimize impact of inadvertent oil spills, oil-in-ice experiments were performed at the HSVA Arctic ...
  • A multi-level strategy for successively improved structural analysis of existing concrete bridges:examination using a prestressed concrete bridge tested to failure 

    Bagge, Niklas; Plos, Mario; Popescu, Cosmin (Journal article; Peer reviewed, 2018)
    This paper describes a multi-level strategy with increased complexity through four levels of structural analysis of concrete bridges. The concept was developed to provide a procedure that supports enhanced assessments with ...
  • Morphology, internal structure and formation of ice ridges in the sea around Svalbard 

    Bonath, Victoria; Petrich, Christian; Sand, Bjørnar; Fransson, Lennart; Cwirzen, Andrzej (Journal article; Peer reviewed, 2018)
    The results from 3 years of comprehensive field investigations on first-year ice ridges in the Arctic are presented in this paper. The scopes of these investigations were to fill existing knowledge gaps on ice ridges, gain ...
  • Parametric Study on Masonry Arches Using 2D Discrete-Element Modeling 

    Pulatsu, Bora; Erdogmus, Ece; Bretas, Eduardo Martins (Journal article; Peer reviewed, 2018)
  • Mosideo/cirfa tank experiments on behavior and detection of oil in ice 

    Petrich, Christian; O'Sadnick, Megan Eileen; Brekke, Camilla; Myrnes, Marianne; Maus, Sønke; Salomon, Martina Lan; Woelk, Sofie; Grydeland, Tom; Jenssen, Rolf-Ole Rydeng; Eicken, Hajo; Oggier, Marc; Ferro-Famil, Laurent; Harkati, Lekhmissi; Rebane, Ott; Reimer, Nils (Peer reviewed; Journal article, 2019)
    In the Arctic, presence of sea ice presents a challenge to safe and sustainable operations. To optimize planning and minimize impact of inadvertent oil spills, oil-in-ice experiments were performed at the HSVA Arctic ...
  • Experimental study on shear deformation of reinforced concrete beams using digital image correlation 

    Huang, Zheng; Tu, Yongming; Meng, Shaoping; Sabau, Cristian; Popescu, Cosmin; Sas, Gabriel (Journal article; Peer reviewed, 2019)
    This paper presents an experimental program aimed at providing reliable and comprehensive experimental data for assessing the available models of predicting the shear deformation of diagonally-cracked reinforced concrete ...
  • Local and global behavior of walls with cut-out openings in multi-story reinforced concrete buildings 

    Sabau, Cristian; Popescu, Cosmin; Bagge, Niklas; Sas, Gabriel; Blanksvärd, Thomas; Täljsten, Björn (Journal article; Peer reviewed, 2019)
    This paper presents the finite element analysis (FEA) results of a multi-story reinforced concrete (RC) building having precast and cast-in-place load bearing walls. Door-type cut-out openings (height: 2.1 m, width: 0.9–4.4 ...
  • Strengthening of RC beams using bottom and side NSM reinforcement 

    Sabau, Cristian; Popescu, Cosmin; Sas, Gabriel; Schmidt, Jacob Wittrup; Blanksvärd, Thomas; Täljsten, Björn (Journal article; Peer reviewed, 2018)
  • Laboratory In-situ Burns of Oil on Ice 

    Petrich, Christian; Dang, Nga Phuong; Fritt-Rasmussen, Janne; Gustavson, Kim (Chapter, 2018)
    Oil spills in ice-covered waters pose unique challenges to remediation activities. In-situ burning is a potential remediation technique that has shown promising efficiency in earlier trials. An element of arctic in-situ ...
  • Structural health monitoring of a buttress dam using digital image correlation 

    Popescu, Cosmin; Sas, Gabriel; Arntsen, Bård (Chapter, 2019)
    In order to improve the knowledge of the real behaviour of existing structures,structural health monitoring (SHM) is usually carried out. Initial calculations of a buttress dam located in Norway has been carried out to ...
  • Measurements to Estimate the Downward Heat Flux from a Burning Oil Pool 

    Petrich, Christian; O'Sadnick, Megan Eileen; Dang, Nga Phuong; Stakkeland, Linda Marie; Kristiansen, Steffen (Chapter, 2018)
    Oil spills in ice-covered waters pose unique challenges to remediation activities. In-situ burning is a potential remediation technique that has shown promising efficiency in earlier trials. An element of in-situ burning ...
  • Common solutions and challenges to the traverse of sea ice by ships 

    Petrich, Christian; Sæther, Irina Vasiljeva (Peer reviewed; Journal article, 2015)
    The specific challenges of ship operations in sea ice-covered waters of the Arctic depend on factors including the purpose of the operation, the capabilities of the ship and equipment available, the degree of situational ...
  • Electrophoretically deposited carbon nanotube spectrally selective solar absorbers 

    Chen, Zhonghua; Boström, Tobias (Peer reviewed; Journal article, 2016)
    Three types of carbon nanotubes(CNT) have been investigated regarding their suitability as spectrally selective solar thermal absorbers.The CNT coatings were electrophoretically deposited on aluminum substrates using ...

Vis flere