Scientific Publications in Engineering Sciences
Nye registreringer
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A method for reclaiming nutrients from aquacultural waste for use in soilless growth systems
(Peer reviewed; Journal article, 2020)The aim of this work was to develop a method that allows the recovery of nutrients from aquaculture sludge, not only to alleviate the disposal problem, but also to address the future scarcity of non-renewable fertilizers. ... -
Toward Smart Systems: Their Sensing and Control in Industrial Electronics and Applications
(Peer reviewed; Journal article, 2021) -
A Fractional-Order Control Approach to Ramp Tracking with Memory-Efficient Implementation
(Chapter, 2020)We investigate the fractional-order (FO) control of arbitrary order LTI systems. We show that, for ramp tracking or input disturbance rejection, it is advantageous to include an FO integrator to the open-loop if we have ... -
Parameter Identification of Fractional-Order LTI Systems using Modulating Functions with Memory Reduction
(Chapter, 2021)The parameter estimation problem of a linear time-invariant fractional-order system is investigated by means of the modulating function method. Based on the assumption of known model structure and derivative orders, the ... -
A Trajectory-Driven SIMO mm-Wave Channel Model for a Moving Point Scatterer
(Chapter, 2021)In this paper, we propose a trajectory-based three-dimensional (3D) non-stationary channel model for a millimeter wave (mm-Wave) single-input multiple-output (SIMO) system. The proposed channel model is designed to capture ... -
Voltage Source Multilevel Inverters with Reduced Device Count: Topological Review and Novel Comparative Factors
(Peer reviewed; Journal article, 2020)Multilevel inverters (MLIs) have gained increasing interest for advanced energy-conversion systems due to their features of high-quality produced waveforms, modularity, transformerless operation, voltage, and current ... -
Lead-Lag-Shaped Interactive Force Estimation by Equivalent Output Injection of Sliding-Mode
(Chapter, 2020)Estimation of interactive forces, which are mostly unavailable for a direct measurement on the interface between the system and its environment, is an essential task in various motion control applications. This paper ... -
A synthesis of feasible control methods for floating offshore wind turbine system dynamics
(Peer reviewed; Journal article, 2021)During the past decade, the development of offshore wind energy has transitioned from near shore with shallow water to offshore middle-depth water regions. Consequently, the energy conversion technology has shifted from ... -
Assessment of a New Analytical Expression for the Maximum-Power Point Voltage with Series Resistance
(Chapter, 2021)This work compares a recently developed analytical expression for the maximumpower point voltage with experimental data, to test its usability for crystalline silicon solar cells. The experimental data covers measurements ... -
Sensitivity Analysis Of Online Oil Quality Monitoring For Early Detection Of Water Ingress In Marine Propulsion Systems
(Peer reviewed; Journal article, 2020)Gearboxes are critical equipment in the vessel propulsion system. Lubrication contamination caused by water ingress or condensation is one of the major failure modes in marine gearboxes leading to accelerated aging of ... -
Practice for determining friction in hydraulic winch systems
(Peer reviewed; Journal article, 2020)This paper presents a method for estimating friction in hydraulic active heave compensated (AHC) offshore winches. The method is a two-step approach where the first step is to model the friction loss in the hydraulic motors ... -
Dissipation in suspension system augmented by piezoelectric stack: port-Hamiltonian approach
(Chapter, 2020)Analysis of damping in semi-active and active suspension systems is prerequisite for an advanced control and, eventually, energy harvesting functions. This paper addresses the damping in suspension system augmented by the ... -
Pressure-flow dynamics with semi-stable limit cycles in hydraulic cylinder circuits
(Chapter, 2021)In hydraulic circuits of the standard fluid-power actuators and mechanisms, like the linear-stroke cylinders, some hydrodynamic effects are often neglected. It happens mainly due to their complexity and secondariness in ... -
Autonomous mooring towards autonomous maritime navigation and offshore operations
(Chapter, 2020)Bollard is a vital component of mooring system. It is the anchor point for mooring ropes to be fixed in order to secure the vessel or ship. An algorithm that translates the segmented mask of bollard output from masked R-CNN ... -
Steady state counterbalance valve modeling with the inuence of synthetic ester oils using CFD
(Peer reviewed; Journal article, 2020)This study looks in details at the effects of synthetic esters being applied to a counterbalance valve from the perspective of a system engineer. There is limited literature on the subject of applied synthetic esters and ... -
The Recombination Parameter γ : Modeling and Comments
(Journal article; Peer reviewed, 2023)The recombination parameter γ appears in mathematical expressions for the temperature coefficient of solar cells. This work presents a new analytical expression for this parameter. The expression is derived assuming that ... -
Experimental Evaluation of Homogeneous Differentiators Applied to Hydraulic Stroke with Measurement Noise and Acceleration Disturbance
(Chapter, 2024)The design and experimental evaluation of continuous homogeneous differentiators are considered. The differentiator gains follow the high-gain setup with variable gain-scaling parameter L. This parameter results from a ... -
Bollard Segmentation and Position Estimation From Lidar Point Cloud for Autonomous Mooring
(Peer reviewed; Journal article, 2021)This article presents a computer-aided object detection and localization method from lidar 3-D point cloud data. This topic of interest is in the framework of autonomous mooring, where the ship is tied to the rigid structure ... -
Adaptive Backstepping Control of Uncertain Nonlinear Systems with Input and State Quantization
(Peer reviewed; Journal article, 2021)Although it is common in network control systems that the sensor and control signals are transmitted via a common communication network, no result is available in investigating the stabilization problem for uncertain ... -
Modeling and field-experiments identification of vertical dynamics of vehicle with active anti-roll bar
(Chapter, 2020)This paper deals with modeling and identification of vertical dynamics of the ground vehicle equipped with two active anti-roll torsion bars. A series of field tests of a full-scale drive have been performed, from which ...