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NTNU i Gjøvik [208]
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Recent Submissions
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LCA and LCC of a chemical recycling process of waste CF-thermoset composites for the production of novel CF-thermoplastic composites. Open loop and closed loop scenarios
(Peer reviewed; Journal article, 2021)The case study presented in this paper is a follow up of a topic already examined in previous studies relating the life cycle assessment (LCA) of a chemical treatment process used to recycle a specific type of carbon fiber ... -
Multiejector CO2 cooling system with evaporative gascooler for a supermarket application in tropical regions
(Peer reviewed; Journal article, 2021)In the present study, the performance of a 33 kW multiejector trans-critical CO2 cooling system is experimentally evaluated for a supermarket application with/without internal heat exchanger and evaporative cooling. In ... -
Heat transfer and pressure drop of supercritical CO2 in brazed plate heat exchangers of the tri-partite gas cooler
(Peer reviewed; Journal article, 2021)The heat transfer characteristic of supercritical CO2 is an essential research topic due to its significant influence on the performance of heat exchangers and systems. In this paper, the heat transfer and pressure drop ... -
Experimental characterisation of a cold thermal energy storage unit with a pillow-plate heat exchanger design
(Peer reviewed; Journal article, 2021)Cold Thermal Energy Storage (CTES) technology can be introduced to refrigeration systems for air conditioning and process cooling to reduce the peak power consumption by decoupling the supply and demand of refrigeration. ... -
Low C-peptide together with a high glutamic acid decarboxylase autoantibody level predicts progression to insulin dependence in latent autoimmune diabetes in adults: The HUNT study
(Journal article; Peer reviewed, 2021)Aim: To search for risk factors that could predict progression in latent autoimmune diabetes in adults (LADA) and compare them with those for type 2 diabetes. Materials and Methods: This study included 175 participants ... -
Police employees working from home during COVID-19 lockdown: Those with higher score on extraversion miss their colleagues more and are more likely to socialize with colleagues outside work
(Peer reviewed; Journal article, 2021)There is a general opinion that extraverted people suffer more than introverted people in home-office arrangement and the social distancing regulation imposed by the government during the Corona Virus Disease 2019 pandemic ... -
Locked and lonely? A longitudinal assessment of loneliness before and during the COVID-19 pandemic in Norway
(Peer reviewed; Journal article, 2021)Aims: There are concerns that lockdown measures taken during the current COVID-19 pandemic lead to a rise in loneliness, especially in vulnerable groups. We explore trends in loneliness before and during the pandemic and ... -
Effects of constituent particle content on ductile fracture in isotropic and anisotropic 6000-series aluminium alloys
(Peer reviewed; Journal article, 2021)Tension tests on smooth and notched specimens were conducted for four 6000-series aluminium alloys to assess the effects of constituent particles on ductile fracture at different stress states. Two of the alloys are ... -
Model-based ordination for species with unequal niche widths
(Peer reviewed; Journal article, 2021)1. It is common practice for ecologists to examine species niches in the study of community composition. The response curve of a species in the fundamental niche is usually assumed to be quadratic. The centre of a quadratic ... -
Predicting multi-axial diffusion of water in laminated composite structural components
(Journal article, 2021)This study examines the diffusion of water in fiber-reinforced polymer (FRP) laminated composites, comprising epoxy resin and unidirectional glass fibers, at different material and structural scales. Experiments on the ... -
Digital Assembly Assistance System in Industry 4.0 Era: A Case Study with Projected Augmented Reality
(Chapter, 2021)Automation has increased more and more in manufacturing companies over the last decades. However, manual labor is still used in a variety of complex tasks and is currently irreplaceable, especially in assembly operations. ... -
Gauss-Newton: A prediction-error-gradient based algorithm to track PMSM parameters online
(Chapter, 2021)Online adaptation of temperature-sensitive motor parameters is of significance for the electric drives in reliability-critical applications. Recursive prediction error method (RPEM) is widely used for this purpose. ... -
The effects of the van der Waals potential energy on the Young’s modulus of a polymer: comparison between molecular dynamics simulation and experiment
(Journal article, 2021)Molecular dynamics simulation were employed to investigate the effect of changing the potential energies describing primary and secondary bonds on the Young’s modulus of a polymer. The energies were changed by arbitrarily ... -
Experimental and numerical studies of tubular concrete structures subjected to blast loading
(Peer reviewed; Journal article, 2021)The E39 coastal highway route along the west coast in Norway is envisioned a future without ferries. A submerged floating tube bridge built in concrete has been suggested as a means of crossing wide and deep fjords, and ... -
Structure of the G-matrix in relation to phenotypic contributions to fitness
(Peer reviewed; Journal article, 2021)Classical theory in population genetics includes derivation of the stationary distribution of allele frequencies under balance between selection, genetic drift, and mutation. Here we investigate the simplest generalization ... -
Sunspot Records by Antonio Colla Just After the Dalton Minimum
(Peer reviewed; Journal article, 2020)Antonio Colla was a meteorologist and astronomer who made sunspot observations at the Meteorological Observatory of the Parma University (Italy). He carried out his sunspot observations from 1830 to 1843, just after the ... -
Risk Reduction Framework for Blue-Green Roofs
(Peer reviewed; Journal article, 2021)As climate change in the Nordic region brings an increase in extreme precipitation events, blue-green roofs have emerged as a solution for stormwater management, hereafter referred to as “blue-green roofs”. The addition ... -
“I call it frost.” Features of scientific social language during inquiry-based learning on the particulate nature of matter
(Peer reviewed; Journal article, 2021)The particulate nature of matter (PNM) is central to learning science and is a difficult concept for both children and adults. The purpose of this study is to examine how teaching materials from an integrated science and ... -
The earliest datable noctilucent cloud observation (Parma, Italy, AD 1840)
(Peer reviewed; Journal article, 2020)Noctilucent clouds (NLCs) are an uncommon phenomenon that provides information about the conditions and dynamics of the mesosphere. The first observation of NLCs was recorded in 1884/1885, following Krakatoa’s eruption in ... -
Quantum corrections to slow-roll inflation: scalar and tensor modes
(Peer reviewed; Journal article, 2021)Inflation is often described through the dynamics of a scalar field, slow-rolling in a suitable potential. Ultimately, this inflaton must be identified with the expectation value of a quantum field, evolving in a quantum ...
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