DSpace Collection:
http://hdl.handle.net/10174/719
2024-03-29T15:55:18ZEncouraging Safe, Green, and Economically Sustainable Use of our Natural Environment
http://hdl.handle.net/10174/33506
Title: Encouraging Safe, Green, and Economically Sustainable Use of our Natural Environment
Authors: Aleandri, Michele; Abrahams, Sophie; Berryman, Anna; Correia, Joaquim; Donlon, Edward; Kamperis, Sam; Mckinnell, Daniel; Metherall, Brady; Millward, Frank; Yu, Keming; Zeng, Fanqi
Abstract: This report addresses anti-social behaviour at green spaces in Wales. Using the data available, this report investigates classifying sites and site users. This classification is used to understand specific anti-social behaviours with agent-based modelling. Regression modelling is also used to calculate a site user's impact on anti-social behaviour, and the scaling behaviour of associated quantities of interest as the number of site visitors increased was examined. Each area of research provides a different lens to understand what is happening at sites across Wales.2022-10-16T23:00:00ZUnderstanding the Fundamentals of Motor Current Signature Analysis
http://hdl.handle.net/10174/29180
Title: Understanding the Fundamentals of Motor Current Signature Analysis
Authors: Champneys, Alan; Shaw, Alexander; Lacey, Andrew; Piette, Bernard; Gopal, Dhanesh Patel; Walker, Geoff; Ockendon, Hilary; Roscoe, James; Correia, Joaquim; Ockendon, John; Mora, Karin; Hunt, Mat; Moore, Matthew; Shirley, Matthew; Marrin, Nico; Farah, Yahya
Abstract: Faraday Predictive Ltd want to understand the relative magnitude of distortions to motor current arising from changes in motor load, eccentricity and rotor condition.2020-08-31T23:00:00ZManaging start waves for mass running events
http://hdl.handle.net/10174/26653
Title: Managing start waves for mass running events
Authors: Amaral, Paula; Barbeiro, Sílvia; Barreira, Raquel; Cavique, Luís; Correia, Joaquim; Cruz, Manuel; Enguiça, Ricardo; Lopes, Nuno; McPhail, Michael; Santos, Jorge; Simões, Paula; Wechsung, Florian
Abstract: Lap2go is a Portuguese timekeeping for several types of sport events. The challenge posed by this
company is how to better manage the starting waves for mass running events in order to avoid congestions,
taking into account each participant natural running pace, the total number of participants
and, if possible, the topography and width of the road.
As a case study the group has received the time each participant has crossed the starting line, the 5
Kilometre mark and the finishing line for a 10 Kilometre race, with more than 8000 participants in
total, for which three starting waves have been set by the organization.
First, we performed an analysis on the provided dataset, trying to evaluate the procedure used by
Lap2Go to decide the waves formation and their releasing times, and afterwards we approached this
problem in two ways: (i) developing an optimization model to set each wave starting time and (ii)
constructing a mathematical particle model of the behaviour of runners, describing the change in each
runners position along the time. The model takes into account the impact of runners density as of
topography on the speed of each runner.
We show the results of some simulations for both those mathematical models, considering the race
data provided by Lap2Go. Moreover, we also present simulation results for other possible wave
configurations with respect to the second model.
The model for simulating race conditions on arbitrary tracks can help organizers to decide the best
way to distribute runners into waves and when to release each wave.2018-10-30T00:00:00ZUnderstanding correlations between raw materials inputs
http://hdl.handle.net/10174/26618
Title: Understanding correlations between raw materials inputs
Authors: Alvelos, Helena; Andrade, Marina; Correia, Joaquim; Maypaokha, Gnord; Renchin-Ochir, Mijiddorj; Xiongshieng, Xaivang
Abstract: Prio Biocombustveis is a company that has a biodiesel plant in Porto de Aveiro. The production capacity of this plant is 113 880 ton/year. The plant has one lab to control the Biodiesel and Raw Materials quality. Every day Prio improves its process to assure the production of the best world-class biodiesel that any costumer can buy.
Prio’s raw materials include several types of oils used in different percentages in the production process. Oils quality has the denomination of characteristic X, which varies with the different types of oils. Even in the same batch of the same oil it’s possible to observe quality oscillations.
Oil’s neutralization is a dynamic process. The process recipe and operational parameters determine the final quality of the oil. All production shifts collect the operational parameters and analyze the quality in the lab for both intermediate and final oils. A diagram showing the main process operations is presented in Figure 1.
The raw oil is heated to achieve the required process temperature and treated with acid and base using agitation. The produced soaps are separated from the Neutral Oil using centrifuges, which requires the control of several operational parameters. In neutralization process the main reaction is:
Oil Mix (Raw Oil) + Base --> Neutral Oil + Soaps.
The aim of this challenge is to understand correlations between raw materials inputs (in particular characteristic X) that define the recipe and highly influence the operational parameters that allow obtaining a high quality neutral oil (outputs).2017-09-21T23:00:00Z