Recent Submissions

  • Tolerancing from STL data: A Legacy Challenge 

    Leirmo, Torbjørn Langedahl; Semeniuta, Oleksandr; Martinsen, Kristian (Journal article; Peer reviewed, 2020)
    Part representation in additive manufacturing (AM) is dominated by the stereolithography (STL) file format as a universal mode for communicating and transferring part geometry from one system to another. However, when the ...
  • Impact of printing surfaces with UV-curable inks on sound absorption 

    Kitanovski, Vlado; Nersveen, Jonny; Strand, Anton; Pedersen, Marius (Peer reviewed; Journal article, 2020)
    The recent UV-curable inks, used in modern inkjet printing systems, bring several advantages and therefore a potential to expand to new applications, including décor printing. In this work, we investigate the impact of ...
  • Extracting shape features from a surface mesh using geometric reasoning 

    Leirmo, Torbjørn Langedahl; Semeniuta, Oleksandr; Baturynska, Ivanna; Martinsen, Kristian (Peer reviewed; Journal article, 2020)
    Mesh data is extensively used in CAD/CAM applications to approximate three-dimensional (3D) solid models. The STL file format is one of the key file formats for 3D data transfer in modern manufacturing systems. STL files, ...
  • A case study on solar, wind and hydro energy resource potential of Prizren region in Kosovo 

    Sarker, Shiplu; Pecani, Goneta; Vula, Dejon; Gebremedhin, Alemayehu (Journal article, 2020-04-24)
    Prizren is a city located in the south part of Kosovo with approximately 90,000 inhabitants and land area of 640 km2. The region is covered with distinct geographical features, that favor penetration and deployment of ...
  • Deburring Using Robot Manipulators: A Review 

    Onstein, Ingrid Fjordheim; Semeniuta, Oleksandr; Bjerkeng, Magnus Christian (Chapter, 2020)
    Deburring of cast parts can be a very challenging task. Today, large burrs on large casting are mostly removed manually. Workers are exposed to hazardous working conditions through, among other things, high noise and ...
  • Secrecy Enhancement of RF Backhaul System with Parallel FSO Communication Link 

    Ai, Yun; Mathur, Aashish; Lei, Hongjiang; Cheffena, Michael; Ansari, Imran Shafique (Peer reviewed; Journal article, 2020)
    This paper analyses the physical layer secrecy (PLS) performance of a hybrid free space optical and radio frequency (FSO/RF) communication system under a modified selection combining scheme. The transmission scheme takes ...
  • Indoor Channel Estimation Using Single-Snapshot Wideband Measurement 

    Ai, Yun; Cheffena, Michael; Mohamed, Marshed Kassim; Al-Samman, Ahmed (Chapter, 2020)
    The successful design of communication systems generally requires knowledge of various channel characteristic parameters. This paper utilizes the reverberation time extracted from single-snapshot wideband measurement to ...
  • A structure of UML profiles for modelling of geospatial information in GIS, ITS and BIM 

    Jetlund, Knut (Peer reviewed; Journal article, 2020)
    Abstract. This study aims to improve the interoperability between models of geospatial information from the applications domains of Geographic Information Systems (GIS), Intelligent Transport Systems (ITS) and Building ...
  • Lessons learned from an experimental campaign on promoting energy content of renewable biogas by injecting H2 during anaerobic digestion 

    Sarker, Shiplu; Wijnsma, Sander; Lien, Kristian Myklebust (Peer reviewed; Journal article, 2020)
    Direct injection of H2 to an anaerobic reactor enables biological fixation of CO2 into CH4 (biomethanation) and consequently boosts methane content in the produced biogas. However, there has been only a small amount of ...
  • Performance of Full-DuplexWireless Back-Haul Link Under Rain Effects Using E-Band 73 GHz and 83 GHz in Tropical Area 

    Al-Samman, Ahmed; Mohamed, Marshed Kassim; Cheffena, Michael; Azmi, Marwan Hadri; Rahman, Tharek Abd. (Peer reviewed; Journal article, 2020)
    This paper presents rain attenuation effects on the performance of the full-duplex link in a tropical region based on one-year measurement data at 73.5- and 83.5-GHz E-band for distances of 1.8 km (longer links) and 300 m ...
  • A Comparative Study of Wireless Channel Propagation Characteristics in Industrial and Offce Environments 

    Ai, Yun; Cheffena, Michael (Research report, 2015)
    This paper presents the comparative results of channel measurements in an industrial facility and an indoor office. The frequency domain channel measurements have been carried out in the frequency band of 0.8.2.7 GHz. ...
  • The environmental impact of rock support for road tunnels: The experience of Norway 

    Huang, Lizhen; Jacobsen, Pål Drevland; Bohne, Rolf André; Liu, Yongping; Bruland, Amund; Manquehual, Cristobal Javier (Peer reviewed; Journal article, 2020)
    Despite the high levels of investment in the construction of underground space, there has been relatively little research so far on the environmental impact of tunnelling and rock support. In an attempt to fill this gap, ...
  • Analysis of Computer Simulation Software’s for Energy Audit in Albania 

    Dorri, Altin; Alcani, Majlinda; Ziu, Denada; Daci, Enxhi; Gebremedhin, Alemayehu (Peer reviewed; Journal article, 2019)
    Energy efficiency is one of the biggest challenges that energy sector is actually facing in Albania. Due to the design and construction of the existing building stock which is not in compliance with the laws and their ...
  • Secrecy enhancement of RF backhaul system with parallel FSO communication link 

    Ai, Yun; Mathur, Aashish; Lei, Hongjiang; Cheffena, Michael; Imran Shafique, Ansari (Peer reviewed; Journal article, 2020)
    This paper analyses the physical layer secrecy (PLS) performance of a hybrid free space optical and radio frequency (FSO/RF) communication system under a modified selection combining scheme. The transmission scheme takes ...
  • Exploring biogas potential data of cattle manure and olive cake to gain insight into farm and commercial scale production 

    Sarker, Shiplu (Peer reviewed; Journal article, 2020)
    This article presents raw data of volumetric biogas and its methane composition obtained from anaerobic digestion experiments conducted under lab scale condition. A commercial biogas industry in Trondheim (Norway) developed ...
  • Smart-Wall 2020 - Et Valg for Fremtiden ? 

    Vebakken, Bjørn Inge; Marmont-Ramsey, Philip (Bachelor thesis, 2020)
    Denne rapporten tar for seg en problemstilling knyttet til oppføring av kjellervegg helt eller delvis under terreng. Grunnlaget for oppgaven er Nordisk Sprøytebetong’s tekniske godkjenning for kompaktmur TEK17, og formålet ...
  • Materialegenskaper til plastmateriale for bruk i additiv formproduksjon - Undersøkelse av mekaniske og geometriske egenskaper til High Temp V2 resin 

    Wedding, Andreas; Hagen, Alexander Enger Wright (Bachelor thesis, 2020)
    Innledning: Oppgaven er en del av BIA-prosjektet «Rapid Tooling 4.0», hvor målet er å korte ned ledetiden og kostnaden ved additiv tilvirkning av sprøytestøpeformer. Materialet som skal benyttes må ha høy styrke og gode ...
  • Skjærforbindelser i etasjeskiller av tre- og betongkomposittelementer 

    Muratshin, Dmitry; Sadat, Ramish; Svingen, Håvard (Bachelor thesis, 2020)
    Hensikten med oppgaven er å finne den beste egnede skjærforbindelsen laget av massivtre i komposittelementer bestående av massivtre og betong med tanke på fasthetsegenskaper. Vi har testet 10 forskjellige elementer med ...
  • Leica BLK2GO som modelleringsgrunnlag til BIM-formål 

    Pedersen, Martin; Bergstrøm, Martin; Nøkland, Jonas (Bachelor thesis, 2020)
    Laserskanning er en utbredt metode for å innhente modelleringsgrunnlag for BIM-modeller av eksisterende bygg. Håndholdte laserskannere er i dag ofte brukt til å supplere stasjonære, bakkebaserte laserskannere. I denne ...
  • EE+ Smart Termisk Nett 

    Ulberget, Marte.; Uthushagen, Daniel. (Bachelor thesis, 2020)
    Denne rapporten tar utgangspunkt i å digitalisere fjernvarmenettet i Raufoss Industripark. Det blir for tiden bare gjort målinger på noen få bygg i parken, men dette vil gjøres i mye større skala mot høsten. En eventuell ...

View more