Search results for "VDP::Teknologi: 500"
showing 10 items of 895 documents
Preliminary photochemical studies of fluorene in various aqueous media
2014
- The current study investigates the direct photochemical degradation of aqueous fluorene with the aid of a 125W polychromatic medium, pressure Hg lamp. The purpose was to test the effectiveness of the lamp in irradiation using fluorene spiked solution as substrate. A 700 ml volume of fluorene solution of 0.002 mg/l was irradiated batch-wise at 1, 3, 6, 12, 18, 24 and 48 h. The amount of fluorene removal was studied for fluorene solutions prepared from , neutral (distilled water), acidic (by adjusting pH with hydrochloric acid, HCl), basic (by adjusting pH with sodium hydroxide, NaOH) and saline (addition of sodium chloride, NaCl) solutions and there was 95.95, 92.35, 96.65 and 97.15 % remo…
A Deep Learning-based approach for Fault Detection of Power Lines
2020
Master's thesis in Information- and communication technology (IKT590) A transmission network is the most crucial part of modern infrastructure. However, it requires an extensive amount of power line inspection each year to maintain, and with an increased interest in replacing large helicopters with drones for this process, the possibility of including AI is equally compelling. This thesis goes into the second part by taking a deep learning-based approach in the interest of fault detection. A literature review illustrates that earlier research has some to none understanding of the complexity re-quired for inspection. Due to the advancement in object detection and classification, this thesis …
Organizational culture as a primary driver for utilizing big data analytics in organizations
2019
Master's thesis Information Systems IS501 - University of Agder 2019 Context:During this last decade we have witnessed a wave of digital disruption, where big data has had a central part. This has gotten many organizations to pay attention and investing in analytic tools for big data. Big data analytics can provide organizations with more knowledge from more data sources that can have a big impact on how organizations act. Many of the organizations that have purchased big data analytics have failed to derive benefits from it and this is demonstratedin the literature. Organizational culture is mentioned as being an important part of achieving success when adopting big data.Purpose: The purpo…
Depth camera based dataset of hand gestures
2022
The dataset contains RGB and depth version video frames of various hand movements captured with the Intel RealSense Depth Camera D435. The camera has two channels for collecting both RGB and depth frames at the same time. A large dataset is created for accurate classification of hand gestures under complex backgrounds. The dataset is made up of 29718 frames from RGB and depth versions corresponding to various hand gestures from different people collected at different time instances with complex backgrounds. Hand movements corresponding to scroll-right, scroll-left, scroll-up, scroll-down, zoom-in, and zoom-out are included in the data. Each sequence has data of 40 frames, and there is a tot…
Bruk av maskinlæring og datautvinning i primærhelsetjenesten
2019
Masteroppgave informasjonssystemer IS501 - Universitetet i Agder 2019 Utgifter og kostnader knyttet til helsetjenester utgjør en stor og økende andel av offentlige utgifter, med en vekst fra54000 kr. pr. innbygger i 2013 til 68000kr.pr. innbygger i 2018(Statistisk Sentralbyrå, 2019). Effektiv og konstruktiv anvendelse av nye teknologier er problemstillinger som vies betydelig interesse og oppmerksomhet både i offentlig og privat sektor. Primærhelsetjenestener en stor og variert kontekst der det finnes mange komplekse ogutfordrende spørsmål innen mange områder. Behandling av sensitive personopplysningerogtilhørendeinformasjonssikkerhet er et eksempel hvor manglende kontroll eller kunnskap ka…
Faktorer som kan påvirke pasienters intensjon om å bruke en digital løsning for postoperativ oppfølging : En kvalitativ studie blant pasienter som ha…
2020
Master's thesis in Health informatics (HSI500) Background: Increasing volume of day surgery and a paradigm shift in patient care, has led to increased involvement of patients in the course of treatment, which requires good information, and good communication between the patient and health professionals. National health policy guidelines are suggesting that Internet-based services may be a key element to meet this need. For patients to use e-health solutions though, there must be an intention of use. Aim: The aim of this study was to explore what factors patients believe may affect their intention to use a service for digital post-operative follow-up after elective surgery. Sample and method…
Differentiating Between Spontaneous and Posed Facial Expression using Inception V4
2018
Master's thesis Information- and communication technology IKT590 - University of Agder 2018 This thesis proposes a way to simplify and make solutions for spontaneous and posed facial expression analysis more efficient. Traditional approaches have been using hand-crafted features and two image frames to be able to differentiate between spontaneous and posed facial expressions. The solution aims to be as flexible as possible and introduces two models to differentiate between posed and spontaneous facial expression. We introduce Inception V4 as an algorithm to solve this task. The results indicate that Inception V4 may be too deep and unable to differentiate between spontaneous and posed facia…
Sensorless Control of Induction Motors Using an Extended Kalman Filter and Linear Quadratic Tracking
2017
Master's thesis Renewable Energy ENE500 - University of Agder 2017 Conventional sensorless controls for induction motors require two PID regulators and precise gain turning. This thesis presents a sensorless control for induction motors using an extended Kalman filter (EKF) and linear quadratic tracking (LQT). The proposed method requires only a single controller and no physical velocity sensor
Guidelines to Select Between Self-Contained Electro-Hydraulic and Electro-Mechanical Cylinder
2020
This research paper presents guidelines on how to select between self-contained electro-hydraulic and electromechanical cylinders. An example based on the motion control of a single-boom crane is studied. The sizing process of the different off-the-shelf components is analyzed in terms of design impact when replacing a traditional valve-controlled hydraulic cylinder. The self-contained electro-hydraulic solution is the best choice when a risk for high impact forces is present, when the required output power level lies continuously above 2 kW, or when installation space, weight, and cost are critical design objectives. However, the electro-mechanical solution is expected to show more control…
Multiobjective optimization of building energy consumption and thermal comfort based on integrated BIM framework with machine learning-NSGA II
2022
Detailed parametric analysis and measurements are required to reduce building energy usage while maintaining acceptable thermal conditions. This research suggested a system that combines Building Information Modeling (BIM), machine learning, and the non-dominated sorting genetic algorithm-II (NSGA II) to investigate the impact of building factors on energy usage and find the optimal design. A plugin is developed to receive sensor data and export all necessary information from BIM to MSSQL and Excel. The BIM model was imported to IDA Indoor Climate and Energy (IDA ICE) to execute an energy consumption simulation and then a pairwise test to produce the sample data set. To study the data set a…