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Effect of carbonation on bulk resistivity of cement/carbon nanofiber composites
(Peer reviewed; Journal article, 2021)The conductivity of cement/carbon nanofiber (CNF) composite materials has previously been shown to be affected by parameters such as e.g. CNF content or water to cement (w/c) ratios, water saturation and temperature. ... -
The effect of changes in light level on the numbers of cyclists
(Peer reviewed; Journal article, 2023)Cycling has a range of benefits and should be encouraged, but darkness may put people off from cycling due to reductions in visibility, road safety and personal security. We summarise previous work that consistently ... -
Effect of climatic parameters on marine atmospheric corrosion: correlation analysis of on-site sensors data
(Peer reviewed; Journal article, 2023)A good understanding of influencing parameters is required to predict corrosivity in marine and coastal environments. This study investigated the influences of real-time data of (i) air temperature, (ii) sensor surface ... -
Effect of Co incorporation and support selection on deoxygenation selectivity and stability of (Co)Mo catalysts in anisole HDO
(Peer reviewed; Journal article, 2019)A series of supported Co modified Mo catalysts was prepared by varying the Co/Mo ratio in the range from 0 to 1 while maintaining the Mo loading at ca. 10 wt%. A sequential incipient wetness impregnation method, with Mo ... -
Effect of CO2 tax on energy use in oil production: waterflooding optimization under different emission costs
(Peer reviewed; Journal article, 2022)Tackling emissions from hydrocarbon production is a necessity because hydrocarbon production will last for a prolonged time. As a popular hydrocarbon production method, waterflooding operation is energy-intensive and ... -
Effect of composition and temperature on current efficiency for aluminium electrolysis from cryolite-based molten alumina electrolytes
(Peer reviewed; Journal article, 2017)The current efficiency (CE) for aluminium electrolysis in modern cells can be as high as 96 %. The main reason for loss in current efficiency is the so-called back reaction between dissolved metal and the anode product of ... -
Effect of Contamination on the Friction and Wear of Carboxylic Acids in Aqueous Lubricants
(Peer reviewed; Journal article, 2018)The friction and wear mechanisms of water-based fluids consisting of various types of carboxylic acids have been systematically investigated using a ball-on-disc tribometer on a super duplex stainless steel under boundary ... -
Effect of copper addition on the cluster formation behavior of Al-Mg-Si, Al-Zn-Mg, and Al-Mg-Ge in the natural aging
(Peer reviewed; Journal article, 2018)The time-dependent resistivity of Al-Mg-Si(-Cu), Al-Zn-Mg(-Cu), and Al-Mg-Ge(-Cu) alloys are studied over a range of constant temperatures between 255 K and 320 K. The resistivity vs time curves for the samples show three ... -
Effect of crucible rotation on the temperature and oxygen distributions in Czochralski grown silicon for photovoltaic applications
(Peer reviewed; Journal article, 2021)Temperature and oxygen distributions were numerically studied for the Czochralski (Cz) growth of 8′′ diameter silicon single crystals for photovoltaic applications. Fluctuations in the dopant concentration (striation ... -
The effect of Cu and Ge additions on strength and precipitation in a lean 6xxx aluminium alloy
(Peer reviewed; Journal article, 2015)It has been demonstrated that the strength loss in a lean Al-Mg-Si alloy due to solute reduction could be compensated by back-adding a lower at % of Ge and Cu. Nanosized precipitate needles which are the main cause of ... -
Effect of cyclic ageing on the early-stage clustering in Al–Zn-Mg(-Cu) alloys
(Peer reviewed; Journal article, 2022)The cyclic application of mechanical stress to aluminum alloys at room temperature, referred to as cyclic ageing, continuously injects vacancies, enabling dynamic precipitation of a fine distribution of solute clusters. ... -
Effect of demand-controlled ventilation strategies on indoor air pollutants in a classroom: A Norwegian case study
(Peer reviewed; Journal article, 2023)The choice of the minimum ventilation rate (Vmin) in a demand-controlled ventilation strategy can influence energy demand but also introduce outdoor air pollutants. The latter may have direct health effects, as well as ... -
Effect of different SiO2 polymorphs on the reaction between SiO2 and SiC in Si production
(Peer reviewed; Journal article, 2021)This work investigates the phase transformations in silica (SiO2) during heating to a target temperature between 1700 °C and 1900 °C and the effect of SiO2 polymorphs on the reduction reaction 2SiO2 + SiC = 3SiO + CO in ... -
Effect of electric field on push-out strength of cemented steel pipes
(Peer reviewed; Journal article, 2021)Cement-steel interfacial strength is an important measure for estimating the robustness and hydraulic sealing ability of wells. In this paper, laboratory experiments were performed in which small steel pipes (10 mm in ... -
Effect of Elevated Hydrogen Partial Pressure on Mixed Culture Homoacetogenesis
(Peer reviewed; Journal article, 2021)This study aimed to systematically investigate the effect of elevated hydrogen partial pressure on mixed culture homoacetogenesis in the range of 1–25 bar. Seven batch experiments were performed at different initial headspace ... -
The Effect of Feeding Strategy on Butanol Production by Clostridium beijerinckii NCIMB 8052 Using Glucose and Xylose
(Peer reviewed; Journal article, 2018)We performed fed-batch fermentations of glucose and xylose mixtures producing butanol. Our aim was to develop a feeding strategy for coping with carbon catabolite repression (CCR) and sequential utilization problems as ... -
The Effect of Fiber Concentration on Fiber Orientation in Injection Molded Film Gated Rectangular Plates
(Peer reviewed; Journal article, 2017) -
Effect of Field Caprock Shale Exposure to CO2 on Its Mechanical Properties—A Comparison of Experimental Techniques
(Peer reviewed; Journal article, 2022)Laboratory tests were performed on the Draupne shale formation, which may serve as a seal over CO2 storage sites. Different techniques were used to assess the integrity and mechanical properties of the shale, with the main ... -
Effect of forced convection on the hygrothermal performance of a wood frame wall with wood fibre insulation
(Peer reviewed; Journal article, 2021)Wood-based thermal insulation materials have interesting hygroscopic characteristics because of their high moisture capacity. The present paper investigates the moisture conditions in wood-frame walls with wood fibre thermal ... -
The effect of frictional pressure, geometry and wall friction on the modelling of a pseudo-2D bubbling fluidised bed reactor
(Peer reviewed; Journal article, 2015)The two fluid model (TFM) closed by the kinetic theory of granular flows (KTGF) has been developed to a high level of maturity over the past three decades. However, significant uncertainties still remain about the influence ...