Browsing Avdeling for ingeniørfag (gjelder til og med 2020) by Issue Date
Now showing items 61-76 of 76
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Infrared Thermography Based Defects Testing of Solar Photovoltaic Panel with Fuzzy Rule‐Based Evaluation
(Peer reviewed; Journal article, 2020) -
An Efficient Scheme for Determining the Power Loss in Wind-PV Based on Deep Learning
(Peer reviewed; Journal article, 2020)Power loss is a bottleneck in every power system and it has been in focus of majority of the researchers and industry. This paper proposes a new method for determining the power loss in wind-solar power system based on ... -
Hochschild Cohomology, Monoid Objects and Monoidal Categories
(Peer reviewed; Journal article, 2020)This paper expands further on a category theoretical formulation of Hochschild cohomology for monoid objects in monoidal categories enriched over abelian groups, which has been studied in Hellstrøm-Finnsen (Commun Algebra ... -
Effect of temperature on geopolymer and Portland cement composites modified with Micro-encapsulated Phase Change materials
(Peer reviewed; Journal article, 2020) -
A Comprehensive Review on Renewable Energy Development, Challenges, and Policies of leading Indian States with an International Perspective
(Peer reviewed; Journal article, 2020)Clean and environment-friendly energy harvesting are of prime interest today as it is one of the key enablers in achieving the Sustainable Development Goals (SDGs) as well as accelerates social progress and enhances living ... -
A Modified Topology of a High Efficiency Bidirectional Type DC–DC Converter by Synchronous Rectification
(Peer reviewed; Journal article, 2020)A modified Topology to acquire high efficiency of a bidirectional method of DC–DC converter of non-isolated approach is proposed. The modified circuit involves four numbers of switches with their body diodes, passive ... -
Two-phase dibromocyclopropanation of unsaturated alcohols using flow chemistry
(Peer reviewed; Journal article, 2020)Dibromocyclopropanations are conventionally done by addition of dibromocarbene to alkenes under phase-transfer conditions in batch reactions using a strong base (50% NaOH (aq)), vigorous stirring and long reaction times. ... -
Thermal Analysis of Power Rectifiers in Steady-State Conditions
(Peer reviewed; Journal article, 2020)Power rectifiers from electrical traction systems, but not only, can be irreversibly damaged if the temperature of the semiconductor junction reaches high values to determine thermal runaway and melting. The paper proposes ... -
Demonstrating Basic Properties and Application of Polarimetry Using a Self-Constructed Polarimeter
(Peer reviewed; Journal article, 2020)An easily constructed and inexpensive polarimeter with an optical rotation angle resolution of about 0.5° is presented. It is made from small pieces of polarizing film, 2 LEDs, a protractor, and a few wires, all held in ... -
The Effect of Number of Arms on the Aggregation Behavior of Thermoresponsive Poly(N-isopropylacrylamide) Star Polymers
(Peer reviewed; Journal article, 2020)The thermoresponsive nature of aqueous solutions of poly(N‐isopropylacrylamide) (PNIPAAM) star polymers containing 2, 3, 4, and 6 arms has been investigated by turbidity, dynamic light scattering, rheology, and rheo‐SALS. ... -
Closed-Loop Control and Performance Evaluation of Reduced Part Count Multilevel Inverter Interfacing Grid-Connected PV System
(Peer reviewed; Journal article, 2020-04-13)Multilevel inverters (MLIs) have drawn a tremendous attention in power sector. Application of MLI has grown extensively to improve the power quality and efficiency of the photovoltaic (PV) system. For an MLI interfacing ... -
The effect of microencapsulated phase change materials on the rheology of geopolymer and Portland cement mortars
(Peer reviewed; Journal article, 2020-05-13)The effect of microencapsulated phase‐change materials (MPCM) on the rheological properties of pre‐set geopolymer and Portland cement mortars was examined. Microcapsules with hydrophilic and hydrophobic shells were compared. ... -
Two-Phase Dibromocyclopropanation of Unsaturated Alcohols Using Flow Chemistry
(Peer reviewed; Journal article, 2020-05-19)Dibromocyclopropanations are conventionally done by addition of dibromocarbene to alkenes under phase-transfer conditions in batch reactions using a strong base (50% NaOH (aq)), vigorous stirring and long reaction times. ... -
An Assessment of Onshore and Offshore Wind Energy Potential in India Using Moth Flame Optimization
(Peer reviewed; Journal article, 2020-06-13)Wind energy is one of the supremely renewable energy sources and has been widely established worldwide. Due to strong seasonal variations in the wind resource, accurate predictions of wind resource assessment and appropriate ... -
Evaluation of Mathematical Model to Characterize the Performance of Conventional and Hybrid PV Array Topologies under Static and Dynamic Shading Patterns
(Peer reviewed; Journal article, 2020-06-20)The analysis and the assessment of interconnected photovoltaic (PV) modules under different shading conditions and various shading patterns are presented in this paper. The partial shading conditions (PSCs) due to the ... -
Complex Temperature and Concentration Dependent Self-Assembly of Poly(2-oxazoline) Block Copolymers
(Peer reviewed; Journal article, 2020-07-04)The effect of polymer concentration on the temperature-induced self-association of a block copolymer comprising a poly(2-ethyl-2-oxazoline) block and a random copolymer block consisting of 2-ethyl-2-oxazoline and ...