• A DEA-based decision analytics framework for product deletion in the luxury goods and fashion industry 

      Pourhejazy, Pourya; Thamachutha, Patcharaporn; Namthip, Tago-in (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-13)
      Traditionally, product deletion is a reactive decision driven by low sales volume and profit margin. However, the complexities involved in product management and consumer behavior volatilities make it necessary to account for a broad range of financial and non-financial factors. Besides, proactive product deletion may be required for a company to reduce the risk of draining resources, adjust to the ...
    • A decision-support model for operational planning of surface coal mining considering equipment failure 

      Yu, Hao; Solvang, Wei Deng; Sun, Xu (Konferansebidrag; Conference object, 2016)
      This paper presents a decision-support model aiming, primarily, at maximizing the productivity of surface coal mining activities through operational planning and management. The model is formulated based upon mixed integer programming, and it determines the optimal production plan of the shovels and allocation plan of the haul trucks in order to minimize operational cost, fuel consumption as well ...
    • Delving Into the Interdependencies in the Network of Economic Sustainability Innovations 

      Badri Ahmadi, Hadi; Pourhejazy, Pourya; Moktadir, Md. Abdul; Dwivedi, Ashish; Liou, James J. H. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-23)
      Legislative pressures and public awareness are urging companies to foster sustainability innovations that improve business operations. Limited studies explored the underpinnings of the economic dimension of sustainability innovations; studying economic innovation criteria in the manufacturing sector of emerging economies can inform other industries while recession fears loom the financial prospects. ...
    • Design and construction of a flexible manufacturing system test bench 

      Andresen, Martin Røysland (Master thesis; Mastergradsoppgave, 2019-06-28)
      This thesis explores the history, concept and criteria of flexible manufacturing systems. A small-scale test bench is designed and constructed for educational and demonstrational pur- poses. The test bench in comprised of an industrial robot, a CNC machine, and a conveyor. These are all controlled and automated from a PLC with a connected touch panel for human machine interface. It describes in ...
    • Design of a pipeline flexibility bench 

      Ghani, Rizwan (Master thesis; Mastergradsoppgave, 2017-08-15)
      In this thesis “Design of pipeline flexibility bench” an exertion has been made to make a conclusive study of fluid flow through pipe. Analysis has been carried out using analytical and numerical approach, where advance computer aided engineering tools such as CFD & FEM approach is used to study the flow behavior in different pipe configurations. Results show a significant change in wall shear stress ...
    • Design of a Process Control System for Combustion Regulation by Moisture Content Measurement in Biomass Feed 

      Abioye, Oluwatomi (Master thesis; Mastergradsoppgave, 2023-05-15)
      Biomass has the capacity to generate a major part of the global renewable energy demands due to its large supply, versatility, and readily exploitable nature. Biomass can be produced from natural sources like wood waste, grasses, trees, and fast-growing energy crops. Biomass wood chips are produced from crushed trees and can be fed into combustion systems to supply heat energy to buildings. However, ...
    • Design of experimental loop to demonstrate pigging activity 

      Makarova, Marina (Master thesis; Mastergradsoppgave, 2017-06-14)
      Our world is continuously developing by new generation of engineers, artists, politicians, travelers and this list can be continued. They will research, improve and design new reality for the future. One of our missions is to help them by bringing better understanding of existing technologies. This is the goal of my thesis: to create an experimental loop to demonstrate pigging activity in the ...
    • Develop an autonomous product-based reconfigurable manufacturing system 

      Olavsbråten, Morten Monland (Master thesis; Mastergradsoppgave, 2022-05-15)
      With the ever-emerging market including mass customization and product variety, reconfigurable manufacturing systems (RMS) have been presented as the solution. A manufacturing system that combines the benefits of the two classic manufacturing systems to increase responsiveness and reduce production time and costs. To cope with the lack of physical systems, an RMS system have been built at UiT Narvik. ...
    • Developing a Toolbox of supports for small and medium sized manufacturing companies 

      Moore, John; Loughran, Anne; McCusker, Edel; Solvang, Wei Deng; Sziebig, Gabor; Yu, Hao; Ericson, Åsa; Holmqvist, Johann; Wenngren, Johann; Pieskä, Sakari; Vahasoyrinki, Juoni; Kaartinen, Heidi (Konferansebidrag; Conference object, 2016)
      TARGET is a collaborative project involving a partnership of universities and institutes of higher education in UK, Ireland, Norway, Finland and Sweden. The project will develop tools to enhance capacity in regional manufacturing companies to adapt and embrace new technologies and innovation. This is to be done in collaboration with small/medium sized manufacturing engineering companies - developing, ...
    • Developing a Vans-and-Drones System for Last-Mile Delivery 

      Aasen, Kristina Charlotte Pedersen (Master thesis; Mastergradsoppgave, 2021-05-18)
      The e-commerce industry is experiencing rapid growth, and growing customer expectations and demand challenges the industry to find more cost-efficient ways of performing the last-mile deliveries. Drones have in recent years been a hot topic, and with high versatility and several application areas it may be the answer to the challenge. In this project a Vans-and-Drones System for Last-Mile Delivery ...
    • Development of Downhole Control Valve 

      Zakaria, Hassan (Master thesis; Mastergradsoppgave, 2018-05-31)
      Designing for downhole environment is a challenging process. High pressure and temperature are the main well conditions that effect the design decisions and the tool geometry. Also, the well fluids can obtain high concentration of corrosive content such H2S acid that plays major role in material selection. The intention of this study is to develop Downhole Control Valve that can be connected to ...
    • Development of small-scale intelligent manufacturing system (SIMS). A case study at Stella Polaris AS 

      Huang, Taoying (Master thesis; Mastergradsoppgave, 2017-06-14)
      Manufacturers in the resourceful Northern Peripheral and Arctic (NPA) region are mostly small and medium-sized enterprises (SMEs). Facing challenges primarily caused by the size and location of enterprises, these SMEs are constantly driven to take new measures to survive from the fierce competition against its domestic and international competitors, under the industrial environments of globalization ...
    • A Digital Reverse Logistics Twin for Improving Sustainability in Industry 5.0 

      Sun, Xu; Yu, Hao; Solvang, Wei Deng (Chapter; Bokkapittel, 2023-09-14)
      The rapid development of information and communication technology (ICT) and digitalization in the Industry 5.0 era have opened up new opportunities for reverse logistics management to become digitalized, smarter, more sustainable, and simplified by incorporating disruptive technologies, e.g., Internet-of-things (IoT), artificial intelligence (AI), big data analysis, simulation, blockchain, etc. ...
    • Digital Twin framework for Extended Reality, by integrating Nachi and SCARA Robot in XR-lab 

      Vilhelmsson, Albin (Master thesis; Mastergradsoppgave, 2022-05-16)
      Digital Twin is a tool used for monitoring systems and controlling systems at a distance; the twining of systems has been around ever since NASA’s Apollo mission; creating a digital twin lets people monitor the system in real-time. A digital twin also allows for modeling, configuration, testing, optimization, and research under dynamic circumstances; it also provides for hazardous free training on ...
    • Digital twin simulation with Visual Components 

      Arnarson, Halldor (Master thesis; Mastergradsoppgave, 2019-06-28)
      A digital twin is a new and emerging tool of the fourth industrial revolution. It is an extensive part of connecting the manufacturing equipment together to develop a smart factory. Investigation of simulating manufacturing system to bind the digital world with the physical, allows for analysis of data and monitoring of systems to head off problems before they even occur, preventing downtime, develop ...
    • Digitalized manufacturing logistics in engineer-to-order operations 

      Strandhagen, Jo Wessel; Buer, Sven-Vegard; Semini, Marco; Alfnes, Erlend (Chapter; Bokkapittel, 2019)
      The high complexity in Engineer-To-Order (ETO) operations causes major challenges for manufacturing logistics, especially in complex ETO, i.e. one-of-a-kind production. Increased digitalization of manufacturing logistics processes and activities can facilitate more efficient coordination of the material and information flows for manufacturing operations in general. However, it is not clear how to ...
    • Disassembly Line Balancing of Electronic Waste Considering the Degree of Task Correlation 

      Chen-Yang, Cheng; Yin-Yann, Chen; Pourhejazy, Pourya; Chih-Yu, Lee (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-10)
      With growing concerns about the depletion of rare-earth elements, managing End-of-Life products has become a key sustainability initiative in the supply chains of global corporations. Recycling, the process of dismantling, separating, and recovery of components and raw materials from wastes, is technologically challenging and should be planned in such a way as to ensure operational efficiency ...
    • Do We Perform Systematic Literature Review Right? A Scientific Mapping and Methodological Assessment 

      Azarian, Mathew; Yu, Hao; Shiferaw, Asmamaw Tadege; Stevik, Tor Kristian (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-27)
      Background: Systematic literature review (SLR) is increasingly utilized to maximize the element of rigor and minimize the individual bias of research synthesis. An analysis of the Web of Science (WoS) database indicates that 90% of the literature review studies using SLR have been published between 2012 and 2022. However, this progressive agenda is impaired by the lack of methodological consistency ...
    • Droplet distribution spectrum effects on dry ice growth on cylinders 

      Sokolov, Pavlo; Virk, Muhammad (Journal article; Peer reviewed, 2019-01-06)
      A detailed parametric analytical study along with a series of viscid multiphase numerical simulations of ice accretion were performed in comparison with experimental data of ice accretion on a 30 mm diameter cylinder. The study was performed for droplet distribution spectra, Langmuir (A-J), in addition to an experimental droplet distribution obtained in an icing tunnel.<br>Analysis shows that droplet ...
    • Encapsulated Water Hammer: Theoretical/Experimental Study 

      Polanco, Geanette; Virk, Muhammad Shakeel; Mughal, Umair Najeeb; Victor, Sojo; Jose, Da Paixao; Antonio, Vidal; Orlando, Aguillon (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-22)
      Water hammer phenomenon involves the transformation of kinetic energy in pressure energy, this transformation occurs as the fluid conditions change inside the pipe in quite a short time. Industry requires to affront frequent flow interruptions in pipe systems due to the closing of valves or stopping of pumping equipment. This phenomenon can initiate serious damages like destruction of the pipe system ...